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CN-121972734-A - Gear grinding clamp for racks

CN121972734ACN 121972734 ACN121972734 ACN 121972734ACN-121972734-A

Abstract

The invention relates to the technical field of clamps, in particular to a rack gear grinding clamp which comprises a base, a positioning structure, a calibration structure, a rack body, a gear alignment structure, a quick-dismantling structure, a supporting structure and a clamping structure. The positioning structure is matched with the calibration structure for use, the rack bodies with different lengths are convenient to adapt, the positioning effect is achieved on the rack bodies, meanwhile, initial tooth alignment position precision of tooth grooves on the rack bodies is guaranteed, the tooth structure is matched with the quick-release structure for use, machining tolerance of the tooth grooves on the rack bodies and the end faces can be automatically counteracted, accurate alignment of the tooth grooves on a plurality of rack bodies is achieved, meanwhile, tooth grinding areas can be quickly moved out of the tooth assemblies, grinding wheel blocking operation is avoided, the support structure is matched with the clamping structure for use, rack bodies with different widths and numbers can be flexibly adapted, the rack bodies are enabled to be stressed uniformly, clamping stability is improved, rack body movement in the tooth grinding process is avoided, and machining stability is guaranteed.

Inventors

  • WANG HUAI

Assignees

  • 浙江宇宸传动科技有限公司

Dates

Publication Date
20260505
Application Date
20260205

Claims (10)

  1. 1. The rack gear grinding clamp is characterized by comprising a base (1), a gear aligning structure (5) arranged at one end of the base (1), and a quick-dismantling structure (6) connected to the gear aligning structure (5); The tooth aligning structure (5) comprises a sliding seat (501) and a second sliding rod (502) fixedly connected to the inside of the sliding seat (501), two sliding seats (501) are fixedly connected to a base (1), a sliding frame (503) is connected between the second sliding rods (502) in a sliding mode, the sliding frame (503) is connected with the sliding seat (501) in a sliding mode, a mounting strip (505) is connected to the sliding frame (503) in a sliding mode, a tooth aligning plate (506) is fixedly connected to the mounting strip (505), a hydraulic rod (507) is arranged at one end of the sliding frame (503), a telescopic end of the hydraulic rod (507) is fixedly connected with the mounting strip (505), a connecting block (602) is connected to the mounting rod (601) in a sliding mode, one end, close to the hydraulic rod (601), of the sliding block (503) is fixedly connected with the inner wall of the sliding frame (503), a connecting block (602) is fixedly connected with the bottom of the hydraulic rod (507), a plug pin (605) is connected to the bottom of the sliding block (602), a plug pin (605) is connected to the second plug pin (602) in a sliding hole (601), the plug pin (604) is clamped with the jack (605).
  2. 2. The rack gear grinding clamp according to claim 1, wherein positioning rods (504) are fixedly connected to two ends of the carriage (503), and two ends of the mounting bar (505) are respectively connected with adjacent positioning rods (504) in a sliding manner.
  3. 3. The rack gear grinding clamp according to claim 2, wherein the sliding frame (503) is in a U-shaped structure, the base (1) is provided with a plurality of rack bodies (4) in a propping mode, the rack bodies (4) are mutually attached, the toothed plate (506) is arranged above the rack bodies (4), and the bottoms of the toothed plate (506) are mutually aligned with adjacent tooth grooves on the rack bodies (4).
  4. 4. The rack gear grinding clamp according to claim 1, wherein the cross sections of the mounting rod (601) and the bolt (604) are of T-shaped structures, a second spring (603) is fixedly connected between the bottom of the mounting rod (601) and the connecting block (602), and a second tension spring (606) is fixedly connected between the outer side end of the bolt (604) and the connecting block (602).
  5. 5. The rack gear grinding clamp according to claim 1, wherein a positioning structure (2) is installed at one end, close to the sliding seat (501), of the base (1), the positioning structure (2) comprises a first installation block (201) and a first sliding rod (202) which is connected to the first installation block (201) in a sliding mode, three first installation blocks (201) are fixedly connected to the base (1), an end plate (203) is fixedly connected between the three first sliding rods (202), and a first spring (205) is fixedly connected between one first sliding rod (202) located in the middle and the adjacent first installation block (201).
  6. 6. The rack gear grinding clamp according to claim 5, wherein the end plate (203) is fixedly connected with a rubber plate (204), and the rubber plate (204) is mutually attached to the end part of the adjacent rack body (4).
  7. 7. The rack gear grinding clamp according to claim 5, wherein one first mounting block (201) in the middle is connected with a calibration structure (3), the calibration structure (3) comprises a knob (301) and a mounting frame (302) connected to the knob (301) in a threaded mode, the knob (301) is rotationally connected to the first mounting block (201), the mounting frame (302) is slidably connected with the first mounting block (201), a limiting block (303) is slidably connected to the mounting frame (302), a first tension spring (304) is fixedly connected between the limiting block (303) and the mounting frame (302), a plurality of limiting holes (305) are formed in the first sliding rod (202) in an equidistant mode, and the bottoms of the limiting blocks (303) are mutually clamped with the adjacent limiting holes (305).
  8. 8. The rack gear grinding clamp according to claim 7, wherein the cross section of the limiting block (303) is of an L-shaped structure, an inclined plane is formed at the bottom of the limiting block (303), and the inclined plane at the bottom of the limiting block (303) is in sliding fit with the hole edge of the limiting hole (305).
  9. 9. The rack gear grinding clamp according to claim 1, wherein a supporting structure (7) is arranged on one side of the base (1), the supporting structure (7) comprises three second installation blocks (701) and third sliding rods (702) which are connected to the second installation blocks (701) in a sliding mode, the second installation blocks (701) are fixedly connected to the base (1), supporting plates (703) are fixedly connected between the three third sliding rods (702), the supporting plates (703) are mutually abutted to adjacent rack bodies (4), a plurality of tooth grooves (704) are formed in the third sliding rods (702) in the middle at equal intervals, clamping blocks (705) are connected to the adjacent second installation blocks (701) in a sliding mode, clamping blocks (705) are mutually clamped with the adjacent tooth grooves (704), driving rods (706) are connected to the adjacent second installation blocks (701) in a threaded mode, and bottoms of the driving rods (706) are connected with the clamping blocks (705) in a rotating mode.
  10. 10. The rack gear grinding clamp according to claim 9, wherein the clamping structure (8) is mounted on the other side of the base (1), the clamping structure (8) comprises three mounting seats (801) and mounting plates (802) which are slidably connected to the mounting seats (801), one side, away from the second mounting block (701), of the base (1) is fixedly connected with the three mounting seats (801), the mounting plates (802) are slidably connected with the inner wall of the base (1), the three mounting plates (802) are fixedly connected with connecting plates (806), two mounting seats (801) close to the outer side are fixedly connected with guide rods (805), two ends of each connecting plate (806) are slidably connected with adjacent guide rods (805) respectively, one mounting seat (801) close to the middle is rotatably connected with a screw rod (807), the end portions of the screw rod (807) are fixedly connected with rotary handles (808), the connecting plates (806) are in threaded connection with the screw rods (807), the top surfaces of the three mounting plates (802) are fixedly connected with the top surfaces of the mounting plates (802), and the three air cylinders (804) are fixedly connected with the air cylinders (804), and the adjacent air cylinders (804) are fixedly connected with the air cylinders (804).

Description

Gear grinding clamp for racks Technical Field The invention relates to the technical field of clamps, in particular to a rack gear grinding clamp. Background The gear rack is used as the core component of the precise transmission and positioning mechanism, the transmission stability and positioning precision of the equipment are directly determined by the tooth form precision, the tooth direction precision and the tooth pitch consistency, in the gear rack processing flow, the gear grinding refers to precise grinding processing of the tooth surface of the gear rack by a gear grinding machine, and the aim is to obtain the tooth form and the tooth direction with high precision, high hardness and low roughness, and meet the requirements of precise transmission, positioning and the like. However, the method is limited by inherent indexing errors and perpendicularity errors between tooth grooves and end faces in the machining process of the racks, the error of each rack has discreteness, accurate circumferential alignment of tooth grooves of a plurality of racks cannot be realized only by means of end part alignment, if tooth grinding machining is directly carried out, the tooth direction precision of the tooth grooves is unqualified and even is directly scrapped, therefore, the tooth grooves are forcedly calibrated by adopting a mode of knocking a tooth block by an artificial copper hammer before grinding, the deviation of the tooth block is easily caused by improper knocking force and angle control, the tooth groove alignment precision is influenced, and the method has complicated pure manual knocking operation, consumes long time and reduces the clamping efficiency; Meanwhile, the end positioning stop blocks of the existing clamp are mainly designed in an integral fixed or simple clamping groove type rough adjustment mode, so that only small-range position adjustment can be realized, the adjustment stroke is limited, the adjustment precision is low, and the clamping requirements of rack bodies with different length specifications are difficult to flexibly adapt; Meanwhile, the fixing components on the existing clamp are designed integrally and fixedly, the disassembly and assembly efficiency is low, the adjustment flexibility is poor, quick adaptation adjustment is difficult to be carried out on rack bodies with different widths and numbers, most of fixing components are designed in a single-station or double-station mode, uneven stress on the rack bodies is easy to cause during clamping, the clamping stability is poor, rack movement phenomenon is easy to occur under the vibration effect of gear grinding processing, and the processing stability and the processing precision are seriously affected. Disclosure of Invention Aiming at the problems in the prior art, the invention provides a rack gear grinding clamp. The technical scheme adopted for solving the technical problems is that the rack gear grinding clamp comprises a base, a gear alignment structure arranged at one end of the base and a quick-release structure connected to the gear alignment structure, wherein the gear alignment structure comprises a rack gear and a rack gear; The tooth aligning structure comprises a sliding seat and a second sliding rod fixedly connected to the inner portion of the sliding seat, two sliding seats are fixedly connected to the base, a sliding frame is connected between the two sliding seats in a sliding mode, sliding connection is achieved between the sliding frames and the sliding seat, a mounting bar is connected to the sliding frames in a sliding mode, a tooth aligning plate is fixedly connected to the mounting bar, a hydraulic rod is arranged at one end of the sliding frames, a telescopic end of the hydraulic rod is fixedly connected to the mounting bar, the quick-dismantling structure comprises a mounting rod and a connecting block which is connected to the mounting rod in a sliding mode, one end, close to the hydraulic rod, of the sliding frame is fixedly connected to the mounting rod, sliding connection is achieved between the connecting block and the bottom of the hydraulic rod, a plug pin is connected to the connecting block in a sliding mode, the plug pin penetrates through the mounting rod, a jack is formed in the second sliding rod, and the plug pin is clamped with the jack. Specifically, the both ends of balladeur train all fixedly connected with locating lever, sliding connection between the both ends of installation strip and the adjacent locating lever respectively. Specifically, the balladeur train is "U" font structure, it has a plurality of rack bodies to contradict on the base, laminating each other between a plurality of rack bodies, the top of rack body is located to the pinion rack, align each other between the tooth's socket adjacent on the bottom of pinion rack and the rack body. Specifically, the cross section of installation pole and bolt is "T" font structure, fixedly connected with second spring