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CN-224223639-U - Hydraulic clamp with self-centering shell

CN224223639UCN 224223639 UCN224223639 UCN 224223639UCN-224223639-U

Abstract

The utility model discloses a shell self-centering hydraulic clamp which comprises a clamp body, wherein a hydraulic cylindrical pin assembly and a hydraulic diamond pin assembly are respectively arranged on the clamp body, three main positioning sliding blocks are arranged between a main positioning pin cover sliding block contact section and a main positioning pin seat sliding block contact section of the hydraulic cylindrical pin assembly, three main positioning sliding blocks radially move to enable three main positioning supporting heads to prop against the inner wall of a blank hole, two auxiliary positioning sliding blocks are arranged between an auxiliary positioning pin cover sliding block contact section and an auxiliary positioning pin seat sliding block contact section of the hydraulic diamond pin assembly, and two auxiliary positioning supporting heads radially move to enable two auxiliary positioning supporting heads to prop against the inner wall of the blank hole. According to the shell self-centering hydraulic clamp, an operator only needs to put a workpiece on the clamp approximately, after the hydraulic component works, the workpiece moves to a proper position under the action of the two positioning pins, the two positioning pins automatically find the center of a blank positioning hole, and meanwhile, the workpiece is clamped, so that centering accuracy is higher.

Inventors

  • LIU YING
  • HAO KAIMIN
  • WANG JIANGFENG
  • WANG WEIBO
  • Wei Xuezi

Assignees

  • 西安法士特汽车传动有限公司

Dates

Publication Date
20260512
Application Date
20250327

Claims (7)

  1. 1. The shell self-centering hydraulic clamp comprises a clamp body (1), wherein a main positioning push cylinder mounting groove (101) and an auxiliary positioning push cylinder mounting groove (102) are formed in the clamp body (1), and the clamp is characterized in that a hydraulic cylindrical pin assembly (2) and a hydraulic diamond pin assembly (3) are respectively arranged on the clamp body (1); the hydraulic cylindrical pin assembly (2) comprises a main positioning pin seat (201), wherein the main positioning pin seat (201) comprises a main positioning pin seat body section (20101) and a main positioning pin seat sliding block contact section (20102) which are sequentially connected; The hydraulic cylindrical pin assembly (2) further comprises a main positioning pin cover (206), and the main positioning pin cover (206) comprises a main positioning pin cover body section (20601) and a main positioning pin cover sliding block contact section (20602) which are sequentially and coaxially connected; Three main positioning sliding blocks (209) are arranged between the main positioning pin cover sliding block contact section (20602) and the main positioning pin seat sliding block contact section (20102), the three main positioning sliding blocks (209) are uniformly distributed around the circumference, main positioning supporting heads (210) are arranged on the outer end faces of the three main positioning sliding blocks (209), and the three main positioning sliding blocks (209) move radially to enable the three main positioning supporting heads (210) to prop against the inner wall of a blank hole; The hydraulic diamond pin assembly (3) comprises a secondary positioning pin seat (301), wherein the secondary positioning pin seat (301) comprises a secondary positioning pin seat body section (30101) and a secondary positioning pin seat sliding block contact section (30102) which are connected in sequence; The hydraulic diamond pin assembly (3) further comprises a secondary positioning pin cover (306), and the secondary positioning pin cover (306) comprises a secondary positioning pin cover body section (30601) and a secondary positioning pin cover sliding block contact section (30602) which are sequentially and coaxially connected; Two auxiliary positioning sliding blocks (309) are arranged between the auxiliary positioning pin cover sliding block contact section (30602) and the auxiliary positioning pin seat sliding block contact section (30102), the two auxiliary positioning sliding blocks (309) are symmetrically distributed around the circumferential direction, auxiliary positioning support heads (310) are arranged on the outer end faces of the two auxiliary positioning sliding blocks (309), and the two auxiliary positioning sliding blocks (309) move radially to enable the two auxiliary positioning support heads (310) to prop against the inner wall of a blank hole.
  2. 2. The shell self-centering hydraulic clamp according to claim 1, wherein the outer diameter of the main locating pin seat body section (20101) is larger than the outer diameter of the main locating pin seat sliding block contact section (20102), the lower end of the main locating pin seat body section (20101) is fixedly connected with the clamp body (1), a main locating pin seat body section mounting groove (20103) and a main locating pin seat sliding block contact section mounting groove (20104) are vertically and coaxially formed in the central positions of the main locating pin seat body section (20101) and the main locating pin seat sliding block contact section (20102), and the diameter of the main locating pin seat body section mounting groove (20103) is larger than the diameter of the main locating pin seat sliding block contact section mounting groove (20104); The hydraulic cylindrical pin assembly (2) further comprises a main positioning pushing cylinder (202), the main positioning pushing cylinder (202) axially moves in the main positioning pushing cylinder mounting groove (101) and the main positioning pin seat body section mounting groove (20103), the main positioning pushing cylinder (202) is fixedly connected with a main positioning push rod (203), the main positioning push rod (203) is fixedly connected with a main positioning pin pushing column (204) in a matched mode, and the main positioning pin pushing column (204) axially moves under the action of the main positioning pushing cylinder (202); The main locating pin pushing column (204) comprises a main locating smooth inclined surface section (20401) and a main locating pushing section (20402) which are sequentially connected, the main locating pushing section (20402) is used for being fixedly connected with the main locating push rod (203) in a matched mode, and the main locating pushing section (20402) is in clearance fit with a main locating pin seat sliding block contact section mounting groove (20104); the top end of the main positioning smooth inclined surface section (20401) is fixedly connected with a main positioning jack post (205), the main positioning jack post (205) is movably connected with a main positioning pin cover (206), the top of the main positioning jack post (205) is fixedly connected with one end of a main positioning compression spring (207), a main positioning plug (208) is arranged at the top of the main positioning compression spring (207), and the main positioning plug (208) is fixedly connected with the main positioning pin cover (206) to position the main positioning compression spring (207); The outer diameter of the main locating pin cover sliding block contact section (20602) is equal to that of the main locating pin cover body section (20601), the main locating pin cover body section (20601) and the main locating pin cover sliding block contact section (20602) are coaxially arranged with the main locating pin seat sliding block contact section (20102), the main locating pin cover sliding block contact section (20602) is not contacted with the main locating pin seat sliding block contact section (20102), and the outer diameter of the main locating pin cover sliding block contact section (20602) is equal to that of the main locating pin seat sliding block contact section (20102); The main locating pin cover body section (20601) and the main locating pin cover sliding block contact section (20602) are sequentially and coaxially provided with a main locating pin cover body section mounting groove (20603) and a main locating pin cover sliding block contact section mounting groove (20604), and the main locating screw plug (208) is fixedly clamped in the main locating pin cover body section mounting groove (20603); The diameter of the main locating pin cover body section mounting groove (20603) is smaller than that of the main locating pin cover sliding block contact section mounting groove (20604), the height of the main locating pin cover body section mounting groove (20603) is larger than that of the main locating pin cover sliding block contact section mounting groove (20604), and the main locating pin pushing column (204) enables the main locating pushing column (205) to axially move in the main locating pin cover body section mounting groove (20603) and the main locating pin cover sliding block contact section mounting groove (20604) through the main locating compression spring (207) through the main locating pushing cylinder (202); The inner end surfaces of the three main positioning sliding blocks (209) are contacted with the smooth side wall of the main positioning smooth inclined surface section (20401), and the three main positioning sliding blocks (209) enable the three main positioning sliding blocks (209) to move radially between the main positioning pin cover sliding block contact section (20602) and the main positioning pin seat sliding block contact section (20102) through the axial movement of the main positioning smooth inclined surface section (20401).
  3. 3. The shell self-centering hydraulic clamp according to claim 1, wherein the outer diameter of the auxiliary locating pin seat body section (30101) is larger than the outer diameter of the auxiliary locating pin seat sliding block contact section (30102), the lower end of the auxiliary locating pin seat body section (30101) is fixedly connected with the clamp body (1), the center positions of the auxiliary locating pin seat body section (30101) and the auxiliary locating pin seat sliding block contact section (30102) are vertically and coaxially provided with an auxiliary locating pin seat body section mounting groove (30103) and an auxiliary locating pin seat sliding block contact section mounting groove (30104), and the diameter of the auxiliary locating pin seat body section mounting groove (30103) is larger than the diameter of the auxiliary locating pin seat sliding block contact section mounting groove (30104); The hydraulic diamond pin assembly (3) further comprises an auxiliary positioning pushing cylinder (302), the auxiliary positioning pushing cylinder (302) axially moves in the auxiliary positioning pushing cylinder mounting groove (102) and the auxiliary positioning pin seat body section mounting groove (30103), the auxiliary positioning pushing cylinder (302) is fixedly connected with an auxiliary positioning push rod (303), the auxiliary positioning push rod (303) is fixedly connected with an auxiliary positioning pin pushing column (304) in a matched mode, and the auxiliary positioning pin pushing column (304) axially moves under the action of the auxiliary positioning pushing cylinder (302); The auxiliary locating pin pushing column (304) comprises an auxiliary locating smooth inclined surface section (30401) and an auxiliary locating pushing section (30402) which are sequentially connected, the auxiliary locating pushing section (30402) is used for being fixedly connected with the auxiliary locating push rod (303) in a matched mode, and the auxiliary locating pushing section (30402) is in clearance fit with an auxiliary locating pin seat sliding block contact section mounting groove (30104); the top end of the auxiliary positioning smooth inclined surface section (30401) is fixedly connected with an auxiliary positioning jacking column (305), the auxiliary positioning jacking column (305) is movably connected with an auxiliary positioning pin cover (306), the top of the auxiliary positioning jacking column (305) is fixedly connected with one end with an auxiliary positioning compression spring (307), an auxiliary positioning screw plug (308) is arranged at the top of the auxiliary positioning compression spring (307), and the auxiliary positioning screw plug (308) is fixedly connected with the auxiliary positioning pin cover (306) to position the auxiliary positioning compression spring (307); The outer diameter of the auxiliary locating pin cover sliding block contact section (30602) is equal to the outer diameter of the auxiliary locating pin cover body section (30401), the auxiliary locating pin cover body section (30601) and the auxiliary locating pin cover sliding block contact section (30602) are coaxially arranged with the auxiliary locating pin seat sliding block contact section (30102), the auxiliary locating pin cover sliding block contact section (30602) is not contacted with the auxiliary locating pin seat sliding block contact section (30102), and the outer diameter of the auxiliary locating pin cover sliding block contact section (30602) is equal to the outer diameter of the auxiliary locating pin seat sliding block contact section (30102); The center positions of the auxiliary locating pin cover body section (30401) and the auxiliary locating pin cover sliding block contact section (30602) are sequentially and coaxially provided with an auxiliary locating pin cover body section mounting groove (30303) and an auxiliary locating pin cover sliding block contact section mounting groove (30604), and the auxiliary locating screw plug (308) is fixedly clamped in the auxiliary locating pin cover body section mounting groove (30303); The diameter of the auxiliary locating pin cover body section mounting groove (30303) is smaller than that of the auxiliary locating pin cover sliding block contact section mounting groove (30604), the height of the auxiliary locating pin cover body section mounting groove (3067) is larger than that of the auxiliary locating pin cover sliding block contact section mounting groove (30304), and the auxiliary locating pin pushing column (304) enables the auxiliary locating pushing column (305) to axially move in the auxiliary locating pin cover body section mounting groove (30303) and the auxiliary locating pin cover sliding block contact section mounting groove (30304) through the auxiliary locating compression spring (307) through the auxiliary locating pushing cylinder (302); The inner end surfaces of the two auxiliary positioning sliding blocks (309) are contacted with the smooth side wall of the auxiliary positioning smooth inclined surface section (30401), the two auxiliary positioning sliding blocks (309) enable the auxiliary positioning jacking column (305) to move in the axial direction of the auxiliary positioning smooth inclined surface section (30401) through the auxiliary positioning pushing cylinder (302) through the auxiliary positioning pin pushing column (304), and the two auxiliary positioning sliding blocks (309) move in the radial direction between the auxiliary positioning pin cover sliding block contact section (30602) and the auxiliary positioning pin seat sliding block contact section (30102) through the auxiliary positioning compression spring (307).
  4. 4. The self-centering hydraulic clamp for the shell according to claim 1, wherein the clamp body (1) is further provided with three fixing support columns (4) and three pressing pieces (5) respectively, and the three fixing support columns (4) are connected with the three pressing pieces (5) respectively.
  5. 5. The self-centering hydraulic clamp for the shell according to claim 1, wherein two floating support hydraulic cylinders (6) are respectively arranged on the clamp body (1).
  6. 6. The self-centering hydraulic clamp for the shell according to claim 1 or 2, wherein the main positioning push cylinder mounting groove (101), the main positioning pin seat body section mounting groove (20103), the main positioning pin seat sliding block contact section mounting groove (20104), the main positioning pin cover body section mounting groove (20603) and the main positioning pin cover sliding block contact section mounting groove (20604) are coaxially arranged in sequence.
  7. 7. A self-centering hydraulic clamp for a shell as claimed in claim 1 or 3, wherein the auxiliary positioning push cylinder mounting groove (102), the auxiliary positioning pin seat body section mounting groove (30103), the auxiliary positioning pin seat sliding block contact section mounting groove (30104), the auxiliary positioning pin cover body section mounting groove (30303) and the auxiliary positioning pin cover sliding block contact section mounting groove (30604) are coaxially arranged in sequence.

Description

Hydraulic clamp with self-centering shell Technical Field The utility model belongs to the technical field of vehicles, and relates to a hydraulic clamp, in particular to a shell self-centering hydraulic clamp. Background In the processing of casing part, adopt the locating method of two round pins of one side generally, traditional anchor clamps are through two taper pins and blank hole effect location, have following shortcoming: ① The fixture does not have a self-centering function, and an operator is required to manually shake the workpiece after the workpiece is placed on the fixture, so that the center of the workpiece coincides with the center of the positioning pin, which not only consumes time, but also is easy to generate larger centering errors; ② The edge of the orifice of the blank hole on the workpiece is used for being attached to the side wall of the locating pin for locating, and the quality of the blank of the orifice of the blank locating hole is difficult to control during casting, so that the locating precision is adversely affected; ③ After the workpiece is installed, the taper pins are fixed by screwing the compression screws on the side edges of the two taper pins, and the blank holes are more in the center of the workpiece, so that the operation of manually adjusting the compression screws is inconvenient. Disclosure of Invention Aiming at the defects in the prior art, the utility model provides a shell self-centering hydraulic clamp, which aims to solve the technical problems that the clamp in the prior art cannot be centered rapidly and accurately and has low positioning precision. In order to solve the technical problems, the utility model adopts the following technical scheme: The utility model provides a casing self-centering hydraulic clamp, includes the anchor clamps body, this internal main location push away jar mounting groove and vice location push away jar mounting groove of seting up of anchor clamps, its characterized in that, the anchor clamps body on be provided with hydraulic pressure cylindric lock subassembly and hydraulic pressure diamond pin subassembly respectively. The hydraulic cylindrical pin assembly comprises a main positioning pin seat, wherein the main positioning pin seat comprises a main positioning pin seat body section and a main positioning pin seat sliding block contact section which are sequentially connected. The hydraulic cylindrical pin assembly further comprises a main positioning pin cover, wherein the main positioning pin cover comprises a main positioning pin cover body section and a main positioning pin cover sliding block contact section which are sequentially and coaxially connected. And three main positioning sliding blocks are arranged between the main positioning pin cover sliding block contact section and the main positioning pin seat sliding block contact section, are uniformly distributed around the circumference, and are respectively provided with a main positioning support head on the outer end surface, so that the three main positioning support heads are propped against the inner wall of the blank hole by radial movement of the three main positioning sliding blocks. The hydraulic diamond pin assembly comprises an auxiliary locating pin seat, wherein the auxiliary locating pin seat comprises an auxiliary locating pin seat body section and an auxiliary locating pin seat sliding block contact section which are sequentially connected. The hydraulic diamond pin assembly also comprises an auxiliary locating pin cover, wherein the auxiliary locating pin cover comprises an auxiliary locating pin cover body section and an auxiliary locating pin cover sliding block contact section which are sequentially and coaxially connected. Two auxiliary positioning sliding blocks are arranged between the sliding block contact section of the auxiliary positioning pin cover and the sliding block contact section of the auxiliary positioning pin seat, the two auxiliary positioning sliding blocks are symmetrically distributed around the circumferential direction, auxiliary positioning support heads are arranged on the outer end faces of the two auxiliary positioning sliding blocks, and the two auxiliary positioning sliding blocks move radially to enable the two auxiliary positioning support heads to prop against the inner wall of the blank hole. The utility model also has the following technical characteristics: The outer diameter of the main locating pin seat body section is larger than the outer diameter of the main locating pin seat sliding block contact section, the lower end of the main locating pin seat body section is fixedly connected with the clamp body, the central positions of the main locating pin seat body section and the main locating pin seat sliding block contact section are vertically and coaxially provided with a main locating pin seat body section mounting groove and a main locating pin seat sliding block contact section mounting groove