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CN-121989071-A - Self-centering clamping tool for heat-resistant steel cylindrical part

CN121989071ACN 121989071 ACN121989071 ACN 121989071ACN-121989071-A

Abstract

The invention provides a self-centering clamping tool for a heat-resistant steel cylinder, which relates to the technical field of machining clamps and comprises a structural frame, wherein a limit seat is fixedly arranged at the rear position in the structural frame, a gear rotating seat is rotatably connected to the front position in the limit seat, and the gear rotating seat is arranged at the middle position in the structural frame. Combine the flexible regulation of self-adaptation and the angle fine setting that the adaptation spring drove the laminating piece of transfer spring, make the laminating piece can laminate the heat-resisting steel cylinder spare global of different diameters comprehensively, realize accurate preliminary centering, then realize the secondary through chuck frame overall structure's cooperation and press from both sides tightly. The problem that the existing heat-resistant steel cylindrical part clamping structure cannot be matched with workpieces with different diameters to achieve accurate centering and stable clamping, the lower side shakes when workpieces are machined easily is solved, machining size and position accuracy are difficult to guarantee, workpiece surface damage is easily caused due to uneven contact stress, and clamping stability and workpiece protection performance are poor.

Inventors

  • ZHOU SHUFANG
  • PENG HAONAN
  • XING XINGHUA
  • ZHANG BO

Assignees

  • 山东宏扬特钢科技有限公司

Dates

Publication Date
20260508
Application Date
20260309

Claims (8)

  1. 1. A self-centering clamping tool for a heat-resistant steel cylindrical part is characterized by comprising a structural frame (1), wherein a limit seat (104) is fixedly arranged at the rear position inside the structural frame (1), a gear rotating seat (105) is rotatably connected to the front position inside the limit seat (104), the gear rotating seat (105) is positioned at the middle position inside the structural frame (1), an adaptive frame (2) is fixedly arranged at the middle position of the top of the gear rotating seat (105), a contact compression rod (201) is inserted and slides at the middle position inside the adaptive frame (2), a stop block is arranged at the middle lower position of the contact compression rod (201), a spring A (202) is arranged at the lower position below the stop block of the contact compression rod (201), a spring B (203) is arranged at the upper position above the stop block of the contact compression rod (201), three positioning seats (204) are annularly arranged at the middle position of the top of the adaptive frame (105), a transmission seat (212) is respectively connected with one end of each transmission seat (205) at the middle position of the transmission seat (212), the other end positions of the three transmission rods (212) are rotationally connected with the peripheral surface positions above the side surfaces of the contact compression rods (201).
  2. 2. The self-centering clamping tool for the heat-resistant steel cylindrical part, as set forth in claim 1, is characterized in that a motor A (102) is fixedly arranged at the rear left position of the structural frame (1), a screw rod (103) is fixedly connected to a rotating shaft of the motor A (102), and the screw rod (103) is positioned at the rear inner position of the structural frame (1).
  3. 3. The self-centering clamping tool for the heat-resistant steel cylindrical part, as set forth in claim 1, is characterized in that a scale sliding groove is formed in the rear position inside the structural frame (1), a scale rack sliding block (101) is connected in a sliding manner in the scale sliding groove of the structural frame (1), a threaded hole is formed in the middle position of the side face of the scale rack sliding block (101), a screw rod (103) is located in the threaded hole of the scale rack sliding block (101), and the front end position of the scale rack sliding block (101) is meshed with a gear rotating seat (105).
  4. 4. The self-centering clamping tool for the heat-resistant steel cylindrical part, as set forth in claim 1, is characterized in that three connecting columns (211) are arranged at the top of the self-adaptive frame (2), the chuck frame (3) is fixedly connected to the top of the three connecting columns (211), the chuck frame (3) is located at the position right above the self-adaptive frame (2), and the middle position of the chuck frame (3) is of a penetrating design.
  5. 5. The self-centering clamping tool for the heat-resistant steel cylindrical part, as set forth in claim 4, is characterized in that a motor B (301) is fixedly installed at the outer side of the peripheral surface of the chuck frame (3), a chuck bevel gear (302) is fixedly connected to a rotating shaft of the motor B (301), a chuck toothed ring (303) is rotatably connected to the inner position of the chuck frame (3), and the chuck toothed ring (303) is meshed with the chuck bevel gear (302).
  6. 6. The self-centering clamping tool for the heat-resistant steel cylindrical part, as set forth in claim 5, is characterized in that a spiral track is arranged at the top of the chuck bevel gear (302), three chuck sliding grooves are formed in the top of the chuck frame (3), chuck clamping jaws (304) are respectively connected in the three chuck sliding grooves of the chuck frame (3) in a sliding mode, clamping jaw grooves are formed in the bottoms of the three chuck clamping jaws (304), and the clamping jaw grooves of the three chuck clamping jaws (304) are meshed with the spiral track at the top of the chuck bevel gear (302).
  7. 7. The self-centering clamping tool for the heat-resistant steel cylindrical parts, as set forth in claim 1, is characterized in that a transmission groove is formed in the upper position of the inner side of each transmission seat (205), a transmission block (206) is slidably connected in the transmission groove of each transmission seat (205), a transmission spring (207) is arranged at two ends of the outer side of each transmission block (206), and the other ends of the two transmission springs (207) connected with each transmission block (206) are connected with two sides of the transmission groove of each transmission seat (205).
  8. 8. The self-centering clamping tool for the heat-resistant steel cylindrical parts, as set forth in claim 7, is characterized in that an adapter frame (208) is fixedly installed at the left and right inner sides of each transfer block (206), an adapter groove is formed in the inner side of each adapter frame (208), an attaching part (209) is rotatably connected in each adapter groove of each adapter frame (208), an adapter spring (210) is respectively arranged at the upper end and the lower end of the outer side of each attaching part (209), and two adapter springs (210) connected with each attaching part (209) are respectively connected at the upper side and the lower side of the inner part of each adapter groove in each adapter frame (208).

Description

Self-centering clamping tool for heat-resistant steel cylindrical part Technical Field The invention relates to the technical field of machining fixtures, in particular to a self-centering clamping fixture for a heat-resistant steel cylinder. Background The application number CN202323608617.5 discloses a radial processing frock of self-centering clamping cylinder, uses with four-axis workstation and waiting to process the work piece cooperation, the outline of waiting to process the work piece is cylinder structure, its characterized in that includes: the flange plate, three-jaw chuck and centre gripping frock, flange plate fixed connection is on four-axis workstation, three-jaw chuck fixed connection is on the flange plate, centre gripping frock is special-shaped structure, fixed connection is on three-jaw chuck, can drive the rotation of whole frock through four-axis workstation, realize circular motion, only need the clamping once on this frock, just can accomplish the processing of a plurality of angles, workpiece drilling machining process has been simplified, processing size and position accuracy and production efficiency have been improved, production process time is reduced, workpiece drilling uniformity is good, the cost of labor has been saved, and is reduced manual labor intensity, and a structure is simple, and is easy and convenient to operate, need not frequent marking, change anchor clamps alright accomplish the drilling processing of work piece. Search based on the above patent and application understanding of the self-centering clamping of the existing cylindrical member: 1. The existing heat-resistant steel cylindrical part clamping structure cannot adapt to workpieces with different diameters to achieve accurate centering and stable clamping, the problem that the lower part shakes during workpiece machining easily occurs, machining size and position accuracy are difficult to guarantee, workpiece surface damage is easily caused due to uneven contact stress, and clamping stability and workpiece protection are poor. 2. The existing clamping device has the defects of complex workpiece machining angle adjustment operation, lack of accurate adjustment and positioning means, frequent manual intervention in the clamping centering, clamping and angle adjustment processes, complex assembly and disassembly processes, long machining preparation time, high manual labor intensity and low machining efficiency. Therefore, in view of the above, the present invention provides a self-centering clamping tool for heat-resistant steel cylindrical parts, which aims to achieve the purpose of having more practical value. Disclosure of Invention In order to solve the technical problems, the invention provides a self-centering clamping tool for a heat-resistant steel cylindrical part, which solves the problems that the existing clamping structure for the heat-resistant steel cylindrical part cannot be matched with workpieces with different diameters to realize accurate centering and stable clamping, and the lower part of the workpiece is easy to shake during processing, is difficult to ensure the processing size and the position precision, is easy to damage the surface of the workpiece due to uneven contact stress, has poor clamping stability and workpiece protection, and on the other hand, the existing clamping device has complex workpiece processing angle adjustment operation and lacks accurate adjustment positioning means, and the clamping centering, clamping and angle adjustment processes have frequent manual intervention, complex assembly and disassembly procedures, so that the processing preparation time is long, the manual labor intensity is high, and the processing efficiency is lower. The invention provides a self-centering clamping tool for a heat-resistant steel cylindrical part, which comprises a structural frame, wherein a limiting seat is fixedly arranged at the rear position inside the structural frame, a gear rotating seat is rotatably connected at the front position inside the limiting seat, an adaptive frame is fixedly arranged at the middle position of the top of the gear rotating seat, a contact pressure rod is inserted and slid at the middle position inside the adaptive frame, a stop block is arranged at the middle lower position of the contact pressure rod, a spring A is arranged at the lower position of the stop block of the contact pressure rod, a spring B is arranged at the upper position of the stop block of the contact pressure rod, the top position of the spring B is bonded at the upper position inside the adaptive frame, three positioning seats are annularly designed at the peripheral surface of the top of the adaptive frame, a transmission seat is rotatably connected at the top position of each positioning seat, the middle inner position of each transmission seat is rotatably connected with one end of a transmission rod, and the other ends of the three transmission rods are rotatably c