Clamping device for welding repair of bearing seat casting and using method of clamping device

Abstract

The invention relates to the technical field of bearing seat repair welding. The clamping device comprises a base, a driving table is arranged on the base, the bottom of the driving table is fixedly connected with the top of the base, a driving assembly is arranged on the driving table, and an energy supply assembly is arranged at the side end of the driving assembly. A linkage assembly is arranged at the side end of the energy supply assembly, a reaction device is arranged on one side of the linkage assembly, the reaction device is located on one side of the driving assembly, a clamping assembly used for assisting in welding repair is arranged on the reaction device, and the reaction device comprises an identification assembly and a welding assembly. Through work of the reaction device and the clamping assembly, the position of the bearing seat can be clamped and fixed while welding repair work can be automatically conducted on the bearing seat, so that the repair welding efficiency and accuracy are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of bearing seat welding repair, and in particular to a clamping device for welding repair of a bearing seat casting and a use method thereof. Background Art

[0002] The bearing seat is one of the commonly used mechanical parts in the field of mechanical transmission. Almost all places with bearings involve bearing seats. The bearing seat is used to install and fix the bearing. The bearing on the bearing seat achieves synchronous rotation with the shaft by cooperating with the shaft.

[0003] In the prior art, during the welding repair process of the bearing seat, it is usually necessary to place the bearing seat in the working area, and manually rotate the side end of the bearing seat so that the position on its surface that needs to be welded is facing the working area, and then the welding repair work is performed by controlling the welding machine. The working steps are cumbersome and the welding repair efficiency is low. At the same time, during the welding repair, an additional fixing device is required to fix the position of the bearing seat, so as to avoid the position of the bearing seat being offset during the welding process, and then to avoid insufficient precision during the welding repair. Therefore, a device is needed that can automatically perform welding repair work on the bearing seat and clamp and fix the position of the bearing seat at the same time to avoid low efficiency and insufficient precision in welding repair. Summary of the invention

[0004] The object of the present invention is to provide a clamping device for welding repair of a bearing seat casting and a method for using the same, so as to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned object, the present invention provides the following technical scheme: A clamping device for welding repair of a bearing seat casting, comprising a base, a driving platform is provided on the base, the bottom of the driving platform is fixedly connected to the top of the base, a driving assembly is provided on the driving platform, a power supply assembly is provided at the side end of the driving assembly, a linkage assembly is provided at the side end of the power supply assembly, a reaction device is provided at one side of the driving assembly, a clamping assembly for assisting in welding repair is provided on the reaction device, the reaction device comprises an identification assembly and a welding assembly, the identification assembly is arranged at one side of the linkage assembly, and the welding assembly is arranged at the side end of the identification assembly.

[0005] Preferably, the driving assembly includes a driving shaft, which is rotatably arranged on the driving platform, a driving gear is provided on the side end of the driving shaft, the center of the driving gear is connected to the driving shaft, the side end of the driving gear is meshed with a linkage gear, the center of the linkage gear is rotatably connected to the side end of the driving platform through the linkage shaft, a driving annular frame is provided on the side of the driving gear away from the driving platform, the driving annular frame is connected to the side end of the driving sleeve through four sliding tracks, the driving sleeve is located at the center of the driving annular frame, the four sliding tracks are evenly arranged around the driving sleeve and are all arranged towards the driving sleeve, the driving sleeve is sleeved on the driving shaft, a linkage crank is sleeved on the linkage shaft, the linkage crank is located on the side of the linkage gear close to the driving annular frame, and the linkage crank The bottom of the handle is provided with an arcuate surface, and the other end of the linkage crank is provided with a connecting column, and the end of the connecting column away from the linkage crank is embedded in any sliding track and slidably cooperates with it. The side of the driving annular frame close to the linkage crank is provided with four arcuate slides, and the four arcuate slides are evenly arranged on the driving annular frame, and each of the arcuate slides is slidably cooperated with the arcuate surface at the end of the linkage crank. The bottom of the driving annular frame is rotatably connected to the rotating seat, and the bottom of the rotating seat is connected to the top of the base, and an auxiliary seat for placing a bearing seat is provided on the side of the rotating seat away from the driving platform, and the bearing seat can roll on the auxiliary seat, and four telescopic clamping arms are provided on the side of the driving sleeve away from the driving platform, and the four telescopic clamping arms are evenly arranged around the driving sleeve.

[0006] Preferably, the energy supply component includes a gear sleeve, the center of the gear sleeve is connected to the end of the driving shaft, the gear sleeve is located on the side of the driving platform away from the driving gear, a driving frame is provided on the side of the gear sleeve away from the driving gear, the bottom of the driving frame is fixedly connected to the top of the driving platform, an output shaft is rotatably connected to the driving frame, a connecting gear is provided on the side of the output shaft close to the gear sleeve, the connecting gear is embedded in the gear sleeve, the tooth groove end of the connecting gear is meshed with the tooth groove end of the gear sleeve, and the center of the connecting gear is mounted on the output shaft through a sliding sleeve The sliding sleeve is splined with the output shaft, and the side of the sliding sleeve close to the driving frame is movably connected to the side end of the driving frame through a compression spring. The side end of the sliding sleeve abuts against the end of the compression spring. A driving motor is provided on the side of the driving frame away from the gear sleeve, and the output end of the driving motor is connected to the end of the output shaft. A connecting frame is provided on the sliding sleeve, and an auxiliary frame is provided on the side end of the connecting frame. The middle part of the auxiliary frame is rotatably connected to the matching frame, and the bottom of the matching frame is connected to the top of the driving platform. A first hinged rod is provided on the side of the auxiliary frame away from the connecting frame.

[0007] Preferably, the linkage assembly includes a control bevel gear, which is arranged on the side end of the gear sleeve, and the center of the control bevel gear is rotatably connected to the side end of the driving platform, the tooth groove end of the control bevel gear can mesh with the tooth groove end of the connecting gear, and when the connecting gear is disengaged from the gear sleeve, the side end of the connecting gear meshes with the side end of the control bevel gear, and a horizontally arranged linkage frame is provided on the side of the driving platform away from the control bevel gear, and a horizontally arranged connecting shaft is provided on the side of the linkage frame away from the driving gear, and a first transmission belt is sleeved on one end of the connecting shaft close to the control bevel gear, and the other end of the first transmission belt is sleeved on the outside of the rotating part of the control bevel gear.

[0008] Preferably, the identification component includes an identification pen, which is slidably arranged on the top of the linkage frame, and the identification end of the identification pen is arranged toward the rotating seat, and the tail end of the identification pen is movably connected to the side end of the first mounting frame through a first spring telescopic rod, and the initial state of the first spring telescopic rod is a force storage state, the bottom of the mounting frame is fixedly connected to the top of the linkage frame, the identification pen is located on a side of the linkage frame close to the driving annular frame, the top of the identification pen is connected to the bottom of the L-shaped trigger rod, and a reaction frame is provided on the side of the linkage frame away from the driving annular frame, and the side end of the reaction frame is connected to the side end of the linkage frame.

[0009] Preferably, the welding assembly includes a reaction piece, the reaction piece is rotatably arranged on the top of the reaction frame, the reaction piece is initially tilted, both sides of the reaction piece are provided with vertically arranged limit rods, the bottom of the limit rods is fixedly connected to the top of the reaction frame, a second hinged rod is hinged on the side of the reaction piece close to the driving platform, the end of the second hinged rod away from the reaction piece is hinged to the end of the control block, the bottom of the control block is slidably matched with the top of the reaction frame, and the side of the control block away from the second hinged rod is movable with the side end of the second mounting frame through a second spring telescopic rod. The bottom of the second mounting bracket is connected to the top of the reaction bracket, a horizontally arranged control rod is provided at one end of the reaction piece away from the second mounting bracket, the angle between the control rod and the reaction piece is 90 degrees, a third hinged rod is hinged on one end of the control rod away from the identification pen, the other end of the third hinged rod is hinged to the end of the first hinged rod, a resistance block is provided on the top of the end of the control rod away from the identification pen, the side end of the resistance block is located on one side of the L-shaped trigger rod, and two symmetrically arranged protrusions are provided on one side of the control rod away from the control block. When the identification pen is charged by the power storage When the first spring telescopic rod is released, the control rod and the reaction piece can be driven to deflect on the reaction frame through the cooperation of the L-shaped trigger rod and the resistance block. A switching frame is provided on the side of the reaction frame away from the driving platform. The side end of the switching frame is connected to the side end of the linkage frame. A control roller is rotatably connected to the switching frame through a matching shaft. A second transmission belt is sleeved on the matching shaft. The other end of the second transmission belt is sleeved on the connecting shaft. A continuous N-shaped slide groove is provided on the control roller. A control wedge block is provided on the side of the control roller facing the control rod. When the control roller rotates, The control rod and the reaction piece are deflected by the cooperation between the control wedge block and one of the protrusions. A welding machine is arranged between the control roller and the identification pen. The welding machine is slidably arranged on the top of the linkage frame. The output end of the welding machine is arranged toward the driving annular frame. A locking frame is arranged on the side end of the welding machine. A spring block is arranged on the side end of the locking frame. One end of the spring block away from the locking frame is embedded in the N-type slide groove and slidably cooperates with the locking frame. The side end of the locking frame is movably connected to the side end of the third mounting frame through a third spring telescopic rod, and the bottom of the third mounting frame is connected to the top of the linkage frame.

[0010] Preferably, the clamping assembly includes an L-shaped driving rod, one side of the top of the L-shaped driving rod is hinged to an end of the control rod away from the third hinged rod, the L-shaped driving rod is slidably arranged in a release groove of the linkage frame, the side end of the bottom of the L-shaped driving rod is connected to the connecting rod, the end of the connecting rod away from the L-shaped driving rod is obliquely arranged, the end of the connecting rod away from the L-shaped driving rod is embedded in the oblique groove at the side end of the pulling block, the connecting rod and the pulling block slide with each other, and the side of the pulling block away from the driving annular frame is movably connected to the side end of the fourth mounting frame through a fourth spring telescopic rod, and the fourth mounting The top of the frame is fixedly connected to the bottom of the linkage frame, and the pulling block is connected to the side end of the release piece toward the side of the driving annular frame. Clamping pieces are symmetrically provided on both sides of the release piece. The side of the clamping piece away from the release piece is movably connected to the reset plate at the side end through a tension spring. The top of the reset plate is connected to the bottom of the linkage frame, and the clamping piece is provided with a matching wedge block on the side facing the release piece. The inclined end of the matching wedge block conflicts with the inclined surface of the side surface of the release piece. When the end of the connecting rod is embedded in the oblique groove, the pulling block is in a state of compressing the fourth spring telescopic rod and synchronously compresses the tension spring.

[0011] Preferably, the method for using the clamping device for welding repair of a bearing seat casting comprises the following steps: S1: The staff first places the bearing seat on the auxiliary seat and fixes it to the end face of the bearing seat through the telescopic clamping arm. Then, the driving motor is controlled to work, thereby driving the output shaft and the connecting gear to rotate synchronously, and then driving the gear sleeve and the driving shaft to rotate synchronously, so that the driving gear and the linkage gear rotate synchronously. Through the provided linkage shaft and linkage crank, the driving ring frame and the driving sleeve can be intermittently driven to rotate on the driving shaft under the cooperation of the connecting column and the sliding track, and through the cooperation of the arc surface of the linkage crank and the arc slideway, the driving ring frame can stably rotate intermittently on the rotating seat, and drive the bearing seat to rotate intermittently, so that its side can fit on the identification On the pen recognition end, whenever the recognition pen detects an area that needs to be welded, the recognition pen will move through the first spring telescopic rod in the power storage state, and drive the L-shaped trigger rod to move and contact the contact block, thereby driving the control rod and the reaction piece to deflect, and the set limit rod is used to limit the deflection angle of the reaction piece, and under the action of the second hinged rod, the control block is driven to compress the second spring telescopic rod to match the deflection of the reaction piece. In the process of the deflection of the reaction piece, the third hinged rod can synchronously pull the first hinged rod and the auxiliary frame to deflect on the matching frame, so that the sliding sleeve is driven to slide on the output shaft through the connecting frame, so that the compression spring is compressed, so that the dynamic connecting gear is separated from the gear sleeve, and the kinetic energy of the driving gear is released; S2: After the connecting gear is disengaged, it meshes with the side end of the control bevel gear, so that it drives the connecting shaft to rotate through the first transmission belt, and drives the matching shaft and the control roller to rotate synchronously through the second transmission belt. Under the cooperation of the N-type slide groove and the spring block, the welding machine is driven to reciprocate along the linkage frame. Through the cooperation of the locking frame and the third spring telescopic rod, the welding machine can move stably and perform welding repair work during the movement. When the control roller rotates and drives the control wedge block to contact the side end of the protrusion, the control rod and the reaction piece can be reset by the resistance force. At this time, the welding repair work is completed, and the connecting frame is reset synchronously, so that the connecting gear is disengaged from the meshing with the control bevel gear and re-embedded in the gear sleeve, so as to continue to complete the detection of the bearing seat, and during the resetting of the reaction piece, the identification pen is synchronously driven to reset; S3: During the deflection of the reaction piece and the control rod, the L-shaped driving rod is driven to move synchronously along the direction of the release groove, thereby driving the connecting rod to disengage from the oblique groove of the pulling block, so that the pulling block is instantly released under the action of the fourth spring telescopic rod, so that the two sides of the release piece are away from the matching wedge block, so that the two clamping pieces are brought closer to each other under the action of the tension spring, and are pressed against and fitted on both sides of the side of the bearing seat, thereby fixing the bearing seat.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, when the device is used, the staff first places the bearing seat in the driving component and makes the side face fit on the detection end of the reaction device, and then controls the energy supply component to work, so that the driving component clamps the bearing seat at the end, and drives it to rotate intermittently, so that the surface of the bearing seat rotates along the detection end of the reaction device. When a position requiring welding is encountered, the identification component is set to drive the welding component to work, thereby synchronously driving the energy supply component to work through the linkage component, cutting off the driving force of the driving component, and making the welding component reciprocate along the welding position, thereby automatically completing the welding work, thereby avoiding the need for the staff to manually rotate the bearing seat to find the welding position, and synchronously avoiding the need to control the welding machine for repair. The welding work can automatically complete the detection and repair welding work, simplify the working steps, thereby improving the welding efficiency, and trigger the clamping assembly to work while the linkage assembly drives the welding assembly to work through the energy supply assembly. When the welding machine is welding, it is clamped and fixed from both sides of the side of the bearing seat, thereby ensuring the stability of the welding process, avoiding the position of the bearing seat to shift during the welding process, and improving the accuracy of the repair welding. After the repair welding is completed, the energy supply assembly and the reaction device are reset synchronously, which is convenient for continuous welding work, further improving the practicality of the device, thereby realizing the ability to automatically perform repair welding on the bearing seat while clamping and fixing the position of the bearing seat to avoid the effects of low efficiency and insufficient accuracy of repair welding.

[0013] In the present invention, the staff first places the bearing seat on the auxiliary seat and fixes it to the end face of the bearing seat through a telescopic clamping arm, and then controls the driving motor to work, thereby driving the output shaft and the connecting gear to rotate synchronously, and then driving the gear sleeve and the driving shaft to rotate synchronously, so that the driving gear and the linkage gear rotate synchronously, so that the driving annular frame can rotate stably and intermittently on the rotating seat, and drive the bearing seat to rotate intermittently, so that its side can fit on the identification end of the identification pen. Whenever the identification pen detects an area that needs to be welded, the identification pen will move through the first spring telescopic rod in the stored force state, thereby driving the control rod and the reaction piece to deflect, so that it is convenient to drive the sliding sleeve to slide on the output shaft through the connecting frame, so that the dynamic connecting gear disengages from the gear sleeve, releases the kinetic energy of the driving gear, thereby stopping the rotation of the bearing seat, and then facilitating the welding work on the bearing seat, thereby improving the use of the device. It is convenient to use. After the connecting gear disengages, it meshes with the side end of the control bevel gear. With the cooperation of the N-type slide groove and the spring block, it drives the welding machine to reciprocate along the linkage frame and performs welding work during the movement. When the control roller rotates and drives the control wedge block to contact the side end of the protrusion, it synchronously drives the connecting frame to reset, so that the connecting gear disengages from the meshing with the control bevel gear and is re-embedded in the gear sleeve, thereby continuing to complete the inspection of the bearing seat, and in the process of resetting the reaction part, it synchronously drives the identification pen to reset, so that the first spring telescopic rod is restored to the stored force state, so as to facilitate subsequent welding work, ensuring the continuity of the welding work, thereby avoiding the need for staff to manually rotate the bearing seat to find the welding position, and simultaneously avoiding the need to control the welding machine for welding work, automatically completing the inspection and welding work, simplifying the working steps, and thus improving the welding efficiency.

[0014] The L-shaped drive rod is synchronously reset when the reaction piece and the control rod are reset, so that the end of the connecting rod is re-embedded in the oblique groove, and in the process of embedding, the pulling block re-compresses the fourth spring telescopic rod, so that the two sides of the release piece are re-fitted and abutted against the adjacent side ends of the matching wedge block, and the tension spring is synchronously charged, so that continuous welding is facilitated, and the practicability of the device is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ; Figure 4 The partially exploded three-dimensional structure of the drive assembly in the present invention is shown in FIG. Figure 1 ; Figure 5 The partially exploded three-dimensional structure of the drive assembly in the present invention is shown in FIG. Figure 2 ; Figure 6 It is a partial three-dimensional structural schematic diagram of the driving component and the energy supply component in the present invention; Figure 7 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ; Figure 8 The schematic diagram of the local three-dimensional structure of the linkage assembly and the reaction device in the present invention is shown in FIG. Figure 1 ; Fig. 9 The schematic diagram of the local three-dimensional structure of the linkage assembly and the reaction device in the present invention is shown in FIG. Figure 2 ; Fig.10 It is a schematic diagram of a partial three-dimensional structure of the reaction device in the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the clamping assembly in the present invention; Fig.12 It is a schematic diagram of the partially exploded three-dimensional structure of the clamping assembly in the present invention.

[0016] In the figure: 1, base; 2, driving platform; 3, driving assembly; 31, driving shaft; 32, driving gear; 33, linkage gear; 34, linkage shaft; 35, driving ring frame; 36, sliding track; 37, driving sleeve; 38, linkage crank; 39, connecting column; 40, arc slide; 41, rotating seat; 42, auxiliary seat; 43, telescopic clamping arm; 5, energy supply assembly; 51, gear sleeve; 52, driving frame; 53, output shaft; 54, engagement connecting gear; 55, sliding sleeve; 56, compression spring; 57, driving motor; 58, connecting frame; 59, auxiliary frame; 60, matching frame; 61, first hinged rod; 7, linkage assembly; 71, control bevel gear; 72, linkage frame; 73, connecting shaft; 74, first transmission belt; 8, reaction device; 81, identification assembly; 811, identification pen; 812, first spring telescopic rod; 813, first mounting frame; 814, L-shaped trigger rod; 81 5. Reaction frame; 82. Welding assembly; 821. Reaction piece; 822. Limit rod; 823. Second hinged rod; 824. Control block; 825. Second spring telescopic rod; 826. Second mounting frame; 827. Control rod; 828. Third hinged rod; 829. Resistance block; 830. Bump; 831. Switching frame; 832. Matching shaft; 833. Control roller; 834. Second transmission belt; 835. N-type slide; 836. Control wedge shaped block; 837, welding machine; 838, locking frame; 839, spring block; 840, third spring telescopic rod; 841, third mounting frame; 9, clamping assembly; 91, L-shaped driving rod; 92, release groove; 93, connecting rod; 94, pulling block; 95, oblique groove; 96, fourth spring telescopic rod; 97, fourth mounting frame; 98, release piece; 99, clamping piece; 100, tension spring; 101, reset plate; 102, matching wedge block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 12The present invention provides a technical solution: a clamping device for welding repair of a bearing seat casting, comprising a base 1, a driving platform 2 is provided on the base 1, the bottom of the driving platform 2 is fixedly connected to the top of the base 1, a driving component 3 is provided on the driving platform 2, a power supply component 5 is provided at the side end of the driving component 3, a linkage component 7 is provided at the side end of the power supply component 5, a reaction device 8 is provided at one side of the linkage component 7, the reaction device 8 is located at one side of the driving component 3, a clamping component 9 for assisting in welding repair is provided on the reaction device 8, the reaction device 8 comprises an identification component 81 and a welding component 82, the identification component 81 is arranged at one side of the linkage component 7, and the welding component 82 is arranged at the side end of the identification component 81.

[0019] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, the driving assembly 3 includes a driving shaft 31, which is rotatably arranged on the driving platform 2. A driving gear 32 is arranged on the side end of the driving shaft 31, and the center of the driving gear 32 is connected to the driving shaft 31. A linkage gear 33 is meshed with the side end of the driving gear 32, and the center of the linkage gear 33 is rotatably connected to the side end of the driving platform 2 through a linkage shaft 34. A driving annular frame 35 is arranged on the side of the driving gear 32 away from the driving platform 2, and the driving annular frame 35 is connected to the side end of a driving sleeve 37 through four sliding rails 36. The driving sleeve 37 is located at the center of the driving annular frame 35. The four sliding rails 36 are evenly arranged around the driving sleeve 37 and are all arranged toward the driving sleeve 37. The driving sleeve 37 is sleeved on the driving shaft 31, and a linkage crank 38 is sleeved on the linkage shaft 34. The linkage crank 38 is located on the side of the linkage gear 33 close to the driving annular frame 35. The bottom of the linkage crank 38 is provided with an arc surface, and the other end of the linkage crank 38 is provided with a connecting column 39. The end of the connecting column 39 away from the linkage crank 38 is embedded in any one of the sliding tracks 36 and slidably cooperates with it. The side of the driving annular frame 35 close to the linkage crank 38 is provided with four arc slideways 40, and the four arc slideways 40 are evenly arranged on the driving annular frame 35. Each of the arc slideways 40 is slidably cooperated with the arc surface at the end of the linkage crank 38. The bottom of the driving annular frame 35 is rotatably connected to a rotating seat 41, and the bottom of the rotating seat 41 is connected to the top of the base 1. The side of the rotating seat 41 away from the driving platform 2 is provided with an auxiliary seat 42 for placing a bearing seat, and the bearing seat can roll on the auxiliary seat 42. The side of the driving sleeve 37 away from the driving platform 2 is provided with four telescopic clamping arms 43, and the four telescopic clamping arms 43 are evenly arranged around the driving sleeve 37. The energy supply component 5 includes a gear sleeve 51, the center of which is connected to the end of the driving shaft 31. The gear sleeve 51 is located on the side of the driving platform 2 away from the driving gear 32. A driving frame 52 is provided on the side of the gear sleeve 51 away from the driving gear 32. The bottom of the driving frame 52 is fixedly connected to the top of the driving platform 2. An output shaft 53 is rotatably connected to the driving frame 52. A connecting gear 54 is provided on the side of the output shaft 53 close to the gear sleeve 51. The connecting gear 54 is embedded in the gear sleeve 51. The tooth groove end of the connecting gear 54 meshes with the tooth groove end of the gear sleeve 51. The center of the connecting gear 54 is sleeved on the output shaft 53 through a sliding sleeve 55. The sliding sleeve 55 is spline-connected to the output shaft 53. The side of the sliding sleeve 55 close to the driving frame 52 is movably connected to the side end of the driving frame 52 through a compression spring 56. The side end of the sliding sleeve 55 abuts against the end of the compression spring 56. A driving motor 57 is provided on the side of the driving frame 52 away from the gear sleeve 51. The output end of the driving motor 57 is connected to the end of the output shaft 53. A connecting frame 58 is provided on the sliding sleeve 55. An auxiliary frame 59 is provided on the side end of the connecting frame 58. The middle part of the auxiliary frame 59 is rotatably connected to the matching frame 60. The bottom of the matching frame 60 is connected to the top of the driving platform 2. A first hinge rod 61 is provided on the side of the auxiliary frame 59 away from the connecting frame 58. The linkage assembly 7 includes a control bevel gear 71, which is arranged at the side end of the gear sleeve 51. The center of the control bevel gear 71 is rotatably connected to the side end of the driving platform 2. The tooth groove end of the control bevel gear 71 can mesh with the tooth groove end of the connecting gear 54. When the connecting gear 54 is disengaged from the gear sleeve 51, the side end of the connecting gear 54 meshes with the side end of the control bevel gear 71. A horizontally arranged linkage frame 72 is provided on the side of the driving platform 2 away from the control bevel gear 71. A horizontally arranged connecting shaft 73 is provided on the side of the linkage frame 72 away from the driving gear 32. A first transmission belt 74 is sleeved on one end of the connecting shaft 73 close to the control bevel gear 71. The other end of the first transmission belt 74 is sleeved on the outside of the rotation part of the control bevel gear 71. The identification component 81 includes an identification pen 811, which is slidably arranged on the top of the linkage frame 72, and the identification end of the identification pen 811 is arranged toward the rotating seat 41. The tail end of the identification pen 811 is movably connected to the side end of the first mounting frame 813 through the first spring telescopic rod 812. The initial state of the first spring telescopic rod 812 is a power storage state. The bottom of the mounting frame is fixedly connected to the top of the linkage frame 72. The identification pen 811 is located on the side of the linkage frame 72 close to the driving annular frame 35. The top of the identification pen 811 is connected to the bottom of the L-shaped trigger rod 814. A reaction frame 815 is provided on the side of the linkage frame 72 away from the driving annular frame 35, and the side end of the reaction frame 815 is connected to the side end of the linkage frame 72. The welding assembly 82 includes a reaction piece 821, which is rotatably arranged on the top of the reaction frame 815. The reaction piece 821 is initially tilted. Both sides of the reaction piece 821 are provided with vertically arranged limit rods 822. The bottom of the limit rod 822 is fixedly connected to the top of the reaction frame 815. The reaction piece 821 is hinged with a second hinged rod 823 on one side close to the driving platform 2. The end of the second hinged rod 823 away from the reaction piece 821 is hinged to the end of a control block 824. The bottom of the control block 824 is slidably matched with the top of the reaction frame 815. The side of the control block 824 away from the second hinged rod 823 is movable with the side end of the second mounting frame 826 through a second spring telescopic rod 825. The bottom of the second mounting frame 826 is connected to the top of the reaction frame 815, and a horizontally arranged control rod 827 is provided at one end of the reaction piece 821 away from the second mounting frame 826. The angle between the control rod 827 and the reaction piece 821 is 90 degrees. A third hinged rod 828 is hinged on one end of the control rod 827 away from the identification pen 811, and the other end of the third hinged rod 828 is hinged to the end of the first hinged rod 61. A resistance block 829 is provided on the top of the end of the control rod 827 away from the identification pen 811, and the side end of the resistance block 829 is located on one side of the L-shaped trigger rod 814. Two symmetrically arranged protrusions 830 are provided on the side of the control rod 827 away from the control block 824. When the identification pen 81 When the first spring telescopic rod 812 with stored force is released, the L-shaped trigger rod 814 and the abutment block 829 can be used to drive the control rod 827 and the reaction member 821 to deflect on the reaction frame 815. A switching frame 831 is provided on the side of the reaction frame 815 away from the driving platform 2. The side end of the switching frame 831 is connected to the side end of the linkage frame 72. A control roller 833 is rotatably connected to the switching frame 831 through a matching shaft 832. A second transmission belt 834 is sleeved on the matching shaft 832. The other end of the second transmission belt 834 is sleeved on the connecting shaft 73. A continuous N-shaped slide groove 835 is provided on the control roller 833. A control wedge block 836 is provided on the side of the control roller 833 facing the control rod 827. When the control roller 833 rotates, the control rod 827 and the reaction piece 821 can be deflected by controlling the cooperation between the wedge block 836 and one of the protrusions 830. A welding machine 837 is arranged between the control roller 833 and the identification pen 811. The welding machine 837 is slidably arranged on the top of the linkage frame 72. The output end of the welding machine 837 is arranged toward the driving annular frame 35. A locking frame 838 is arranged at the side end of the welding machine 837. A spring block 839 is arranged at the side end of the locking frame 838. One end of the spring block 839 away from the locking frame 838 is embedded in the N-type slide groove 835 and slidably cooperates with it. The side end of the locking frame 838 is movably connected to the side end of the third mounting frame 841 through a third spring telescopic rod 840.The bottom of the third mounting frame 841 is connected to the top of the linkage frame 72.

[0020] In this embodiment, Fig.11 and Fig.12 As shown, the clamping assembly 9 includes an L-shaped driving rod 91, one side of the top of the L-shaped driving rod 91 is hinged to the end of the control rod 827 away from the third hinged rod 828, the L-shaped driving rod 91 is slidably set in the release groove 92 of the linkage frame 72, the side end of the bottom of the L-shaped driving rod 91 is connected to the connecting rod 93, the end of the connecting rod 93 away from the L-shaped driving rod 91 is obliquely set, the end of the connecting rod 93 away from the L-shaped driving rod 91 is embedded in the oblique groove 95 at the side end of the pulling block 94, the connecting rod 93 and the pulling block 94 are slidably matched with each other, and the side of the pulling block 94 away from the driving annular frame 35 is movably connected to the side end of the fourth mounting frame 97 through the fourth spring telescopic rod 96, and the fourth mounting frame 97 The top is fixedly connected to the bottom of the linkage frame 72, and the pulling block 94 is connected to the side end of the release member 98 toward the side of the driving annular frame 35. Clamping members 99 are symmetrically provided on both sides of the release member 98. The side of the clamping member 99 away from the release member 98 is movably connected to the reset plate 101 at the side end through a tension spring 100. The top of the reset plate 101 is connected to the bottom of the linkage frame 72, and the side of the clamping member 99 toward the release member 98 is provided with a matching wedge block 102, and the inclined end of the matching wedge block 102 conflicts with the inclined surface of the side surface of the release member 98. When the end of the connecting rod 93 is embedded in the oblique groove 95, the pulling block 94 is in a state of compressing the fourth spring telescopic rod 96 and synchronously compressing the tension spring 100.

[0021] The use method and advantages of the present invention: The use method of the clamping device for welding and repairing a bearing seat casting has the following working process: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown: S1: The staff first places the bearing seat on the auxiliary seat 42, and fixes it on the end face of the bearing seat through the telescopic clamping arm 43, and then controls the drive motor 57 to work, thereby driving the output shaft 53 and the connecting gear 54 to rotate synchronously, and then drives the gear sleeve 51 and the drive shaft 31 to rotate synchronously, so that the drive gear 32 and the linkage gear 33 rotate synchronously, and through the provided linkage shaft 34 and linkage crank 38, the drive annular frame 35 and the drive sleeve 37 can be intermittently driven to rotate on the drive shaft 31 under the cooperation of the connecting column 39 and the sliding track 36, and through the cooperation of the arc surface of the linkage crank 38 and the arc slide 40, the drive annular frame 35 can be stably intermittently rotated on the rotating seat 41, and drive the bearing seat to rotate intermittently, so that its side can fit on the identification end of the identification pen 811. Whenever the identification pen When 811 detects an area that needs to be welded, the identification pen 811 will move through the first spring telescopic rod 812 in the power storage state, and drive the L-shaped trigger rod 814 to move and contact the contact block 829, thereby driving the control rod 827 and the reaction piece 821 to deflect, and the setting limit rod 822 limits the deflection angle of the reaction piece 821, and under the action of the second hinge rod 823, drives the control block 824 to compress the second spring telescopic rod 825 to cooperate with the deflection of the reaction piece 821. In the process of the deflection of the reaction piece 821, the third hinge rod 828 can synchronously pull the first hinge rod 61 and the auxiliary frame 59 to deflect on the matching frame 60, so as to facilitate the sliding sleeve 55 to slide on the output shaft 53 through the connecting frame 58, so that the compression spring 56 is compressed, so that the dynamic connecting gear 54 is separated from the gear sleeve 51, and the kinetic energy of the driving gear 32 is released; S2: After the connecting gear 54 is disengaged, it meshes with the side end of the control bevel gear 71, so that it drives the connecting shaft 73 to rotate through the first transmission belt 74, and drives the matching shaft 832 and the control roller 833 to rotate synchronously through the second transmission belt 834. Under the cooperation of the N-type slide groove 835 and the spring block 839, the welding machine 837 is driven to reciprocate along the linkage frame 72. Through the cooperation of the locking frame 838 and the third spring telescopic rod 840, the welding machine 837 can move stably and move during the movement. During the welding process, when the control roller 833 rotates and drives the control wedge block 836 to contact the side end of the protrusion 830, the control rod 827 and the reaction piece 821 can be reset by the resistance force. At this time, the welding work is completed, and the connecting frame 58 is reset synchronously, so that the connecting gear 54 is disengaged from the meshing with the control bevel gear 71 and re-embedded in the gear sleeve 51, so as to continue to complete the detection of the bearing seat, and during the process of resetting the reaction piece 821, the identification pen 811 is synchronously driven to reset; S3: During the deflection of the reaction piece 821 and the control rod 827, the L-shaped driving rod 91 is driven to move synchronously along the direction of the release groove 92, thereby driving the connecting rod 93 to disengage from the oblique groove 95 of the pulling block 94, so that the pulling block 94 is instantly released under the action of the fourth spring telescopic rod 96, so that the two sides of the release piece 98 are away from the matching wedge block 102, so that the two clamping pieces 99 are brought closer to each other under the action of the tension spring 100, and are pressed against and fitted on both sides of the side of the bearing seat, thereby completing the fixation of the bearing seat.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A clamping device for welding repair of a bearing housing casting, characterized in that: The invention comprises a base (1), wherein a driving platform (2) is provided on the base (1), the bottom of the driving platform (2) is fixedly connected to the top of the base (1), the driving platform (2) is provided with a driving assembly (3), the side end of the driving assembly (3) is provided with an energy supply assembly (5), the side end of the energy supply assembly (5) is provided with a linkage assembly (7), a reaction device (8) is provided on one side of the linkage assembly (7), the reaction device (8) is located on one side of the driving assembly (3), a clamping assembly (9) for assisting in welding repair is provided on the reaction device (8), the reaction device (8) comprises an identification assembly (81) and a welding assembly (82), the identification assembly (81) is arranged on one side of the linkage assembly (7), and the welding assembly (82) is arranged on the side end of the identification assembly (81); The driving assembly (3) comprises a driving shaft (31), the driving shaft (31) being rotatably disposed on the driving platform (2), a driving gear (32) being provided at a side end of the driving shaft (31), the center of the driving gear (32) being connected to the driving shaft (31), a linkage gear (33) being meshed at the side end of the driving gear (32), the center of the linkage gear (33) being rotatably connected to the side end of the driving platform (2) via a linkage shaft (34), and a driving annular frame (35) being provided at a side of the driving gear (32) away from the driving platform (2).

2. A clamping device for welding repair of a bearing seat casting according to claim 1, characterized in that: The driving annular frame (35) is connected to the side end of the driving sleeve (37) via four sliding rails (36). The driving sleeve (37) is located at the center of the driving annular frame (35). The four sliding rails (36) are evenly arranged around the driving sleeve (37) and are all arranged toward the driving sleeve (37). The driving sleeve (37) is sleeved on the driving shaft (31). A linkage crank (38) is sleeved on the linkage shaft (34). The linkage crank (38) is located on a side of the linkage gear (33) close to the driving annular frame (35). The bottom of the linkage crank (38) is provided with an arc surface. The other end of the linkage crank (38) is provided with a connecting column (39). The end of the connecting column (39) away from the linkage crank (38) is embedded in any one of the sliding rails (36) and slidably cooperates with the connecting column. The driving annular frame (35) is provided with four arc-shaped slideways (40) on a side close to the linkage crank (38). The four arc-shaped slideways (40) are evenly arranged on the driving annular frame (35). Each of the arc-shaped slideways (40) is slidably matched with the arc-shaped surface at the end of the linkage crank (38). The bottom of the driving annular frame (35) is rotatably connected to a rotating seat (41). The bottom of the rotating seat (41) is connected to the top of the base (1). An auxiliary seat (42) for placing a bearing seat is provided on a side of the rotating seat (41) away from the driving platform (2). The bearing seat can roll on the auxiliary seat (42). Four telescopic clamping arms (43) are provided on a side of the driving sleeve (37) away from the driving platform (2). The four telescopic clamping arms (43) are evenly arranged around the driving sleeve (37).

3. A clamping device for welding repair of a bearing seat casting according to claim 2, characterized in that: The energy supply assembly (5) comprises a gear sleeve (51), the center of which is connected to the end of a driving shaft (31), the gear sleeve (51) being located on a side of the driving platform (2) away from the driving gear (32), a driving frame (52) being provided on the side of the gear sleeve (51) away from the driving gear (32), the bottom of which is fixedly connected to the top of the driving platform (2), an output shaft (53) being rotatably connected to the driving frame (52), a connecting gear (54) being provided on a side of the output shaft (53) close to the gear sleeve (51), the connecting gear (54) being embedded in the gear sleeve (51), a tooth groove end of the connecting gear (54) being meshed with a tooth groove end of the gear sleeve (51), the center of the connecting gear (54) being sleeved on the output shaft (53) via a sliding sleeve (55), the connecting gear (54) being provided on the output shaft (53) at a position close to the gear sleeve (51), and the connecting gear (54) being provided on a side of the output shaft (53) close to the gear sleeve (51). The sliding sleeve (55) is spline-connected to the output shaft (53); a side of the sliding sleeve (55) close to the driving frame (52) is movably connected to a side end of the driving frame (52) via a compression spring (56); the side end of the sliding sleeve (55) abuts against an end of the compression spring (56); a driving motor (57) is provided on a side of the driving frame (52) away from the gear sleeve (51); an output end of the driving motor (57) is connected to an end of the output shaft (53); a connecting frame (58) is provided on the sliding sleeve (55); an auxiliary frame (59) is provided at a side end of the connecting frame (58); a middle portion of the auxiliary frame (59) is rotatably connected to a matching frame (60); a bottom portion of the matching frame (60) is connected to a top portion of the driving platform (2); and a first hinge rod (61) is provided on a side of the auxiliary frame (59) away from the connecting frame (58).

4. A clamping device for welding repair of a bearing seat casting according to claim 3, characterized in that: The linkage assembly (7) comprises a control bevel gear (71), the control bevel gear (71) being arranged at a side end of a gear sleeve (51), the center of the control bevel gear (71) being rotatably connected to the side end of the driving platform (2), the tooth groove end of the control bevel gear (71) being able to mesh with the tooth groove end of a connecting gear (54), when the connecting gear (54) is separated from the gear sleeve (51), the side end of the connecting gear (54) meshes with the side end of the control bevel gear (71), a horizontally arranged linkage frame (72) being arranged at a side of the driving platform (2) away from the control bevel gear (71), a horizontally arranged connecting shaft (73) being arranged at a side of the linkage frame (72) away from the driving gear (32), a first transmission belt (74) being sleeved on one end of the connecting shaft (73) close to the control bevel gear (71), and the other end of the first transmission belt (74) being sleeved on the outer side of the rotating portion of the control bevel gear (71).

5. A clamping device for welding repair of a bearing seat casting according to claim 4, characterized in that: The identification component (81) comprises an identification pen (811), the identification pen (811) is slidably arranged on the top of the linkage frame (72), the identification end of the identification pen (811) is arranged toward the rotating seat (41), the tail end of the identification pen (811) is movably connected to the side end of the first mounting frame (813) through a first spring telescopic rod (812), the initial state of the first spring telescopic rod (812) is a power storage state, the bottom of the mounting frame is fixedly connected to the top of the linkage frame (72), the identification pen (811) is located on a side of the linkage frame (72) close to the driving annular frame (35), the top of the identification pen (811) is connected to the bottom of the L-shaped trigger rod (814), and a reaction frame (815) is provided on a side of the linkage frame (72) away from the driving annular frame (35), and the side end of the reaction frame (815) is connected to the side end of the linkage frame (72).

6. A clamping device for welding repair of a bearing housing casting according to claim 5, characterized in that: The welding assembly (82) comprises a reaction piece (821), the reaction piece (821) being rotatably arranged on the top of a reaction frame (815), the reaction piece (821) being tilted in an initial state, both sides of the reaction piece (821) being provided with vertically arranged limit rods (822), the bottom of the limit rods (822) being fixedly connected to the top of the reaction frame (815), a second hinged rod (823) being hingedly connected to a side of the reaction piece (821) close to the driving platform (2), an end of the second hinged rod (823) being away from the reaction piece (821) being hingedly connected to an end of a control block (824), the bottom of the control block (824) being slidably matched with the top of the reaction frame (815), the control block (824) being away from the second hinged rod (823) and the end of the control block (824) being hingedly connected to the top of the reaction frame (815), and the control block (824) being away from the second hinged rod (823). One side of the connecting rod (823) is movably connected to the side end of the second mounting frame (826) through a second spring telescopic rod (825); the bottom of the second mounting frame (826) is connected to the top of the reaction frame (815); a horizontally arranged control rod (827) is provided at one end of the reaction member (821) away from the second mounting frame (826); the angle between the control rod (827) and the reaction member (821) is 90 degrees; a third hinged rod (828) is hinged on one end of the control rod (827) away from the identification pen (811); the other end of the third hinged rod (828) is hinged to the end of the first hinged rod (61); and a resisting block (829) is provided on the top of one end of the control rod (827) away from the identification pen (811). The side end of the abutment block (829) is located on one side of the L-shaped trigger rod (814); the side of the control rod (827) away from the control block (824) is provided with two symmetrically arranged protrusions (830); when the identification pen (811) is released by the first spring telescopic rod (812) storing force, the L-shaped trigger rod (814) and the abutment block (829) can be used to drive the control rod (827) and the reaction member (821) to deflect on the reaction frame (815); the side of the reaction frame (815) away from the driving platform (2) is provided with a switching frame (831); the side end of the switching frame (831) is connected to the side end of the linkage frame (72); and the switching frame (831) is rotatably connected to a control roller (832) via a matching shaft (832). 833), a second transmission belt (834) is sleeved on the matching shaft (832), the other end of the second transmission belt (834) is sleeved on the connecting shaft (73), a continuous N-shaped slide groove (835) is opened on the control roller (833), a control wedge block (836) is provided on the side of the control roller (833) facing the control rod (827), when the control roller (833) rotates, the control rod (827) and the reaction member (821) can be deflected by the cooperation of the control wedge block (836) and one of the protrusions (830), a welding machine (837) is arranged between the control roller (833) and the identification pen (811), and the welding machine (837) is slidably arranged on the top of the linkage frame (72),The output end of the welding machine (837) is arranged toward the driving annular frame (35), and the side end of the welding machine (837) is provided with a locking frame (838), and the side end of the locking frame (838) is provided with a spring block (839), and one end of the spring block (839) away from the locking frame (838) is embedded in the N-shaped slide groove (835) and slidably cooperates with the locking frame (838), and the side end of the locking frame (838) is movably connected to the side end of the third mounting frame (841) through a third spring telescopic rod (840), and the bottom of the third mounting frame (841) is connected to the top of the linkage frame (72).

7. A clamping device for welding repair of a bearing housing casting according to claim 6, characterized in that: The clamping assembly (9) comprises an L-shaped driving rod (91), one side of the top of the L-shaped driving rod (91) is hinged to an end of the control rod (827) away from the third hinge rod (828), the L-shaped driving rod (91) is slidably arranged in a release groove (92) of the linkage frame (72), the side end of the bottom of the L-shaped driving rod (91) is connected to a connecting rod (93), the end of the connecting rod (93) away from the L-shaped driving rod (91) is obliquely arranged, the end of the connecting rod (93) away from the L-shaped driving rod (91) is embedded in an oblique groove (95) at the side end of a pulling block (94), the connecting rod (93) and the pulling block (94) are slidably matched with each other, the side of the pulling block (94) away from the driving annular frame (35) is movably connected to the side end of a fourth mounting frame (97) through a fourth spring telescopic rod (96), the top of the fourth mounting frame (97) The connecting rod (93) is fixedly connected to the bottom of the linkage frame (72); the pulling block (94) is connected to the side end of the release member (98) on the side facing the driving annular frame (35); clamping members (99) are symmetrically provided on both sides of the release member (98); the side of the clamping member (99) away from the release member (98) is movably connected to a reset plate (101) at the side end through a tension spring (100); the top of the reset plate (101) is connected to the bottom of the linkage frame (72); the clamping member (99) is provided with a matching wedge block (102) on the side facing the release member (98); the inclined surface end of the matching wedge block (102) abuts against the inclined surface of the side surface of the release member (98); when the end of the connecting rod (93) is embedded in the oblique groove (95), the pulling block (94) is in a state of compressing the fourth spring telescopic rod (96) and synchronously compressing the tension spring (100).

8. A method for using a clamping device for welding repair of a bearing seat casting, using the clamping device for welding repair of a bearing seat casting as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1: The staff first places the bearing seat on the auxiliary seat (42) and fixes it to the end face of the bearing seat through the telescopic clamping arm (43). Then, the staff controls the driving motor (57) to work, thereby driving the output shaft (53) and the connecting gear (54) to rotate synchronously, and then drives the gear sleeve (51) and the driving shaft (31) to rotate synchronously, so that the driving gear (32) and the linkage gear (33) rotate synchronously. Through the provided linkage shaft (34) and linkage crank (38), the driving ring frame (35) and the driving sleeve (37) can be intermittently driven to rotate on the driving shaft (31) under the cooperation of the connecting column (39) and the sliding track (36). Through the cooperation of the arc surface of the linkage crank (38) and the arc slide (40), the driving ring frame (35) can be stably intermittently rotated on the rotating seat (41), and the bearing seat is driven to rotate intermittently, so that its side can fit on the identification end of the identification pen (811). Whenever the identification pen (811) ) When an area requiring welding is detected, the identification pen (811) moves through the first spring telescopic rod (812) in the power storage state, and drives the L-shaped trigger rod (814) to move and abut against the abutment block (829), thereby driving the control rod (827) and the reaction piece (821) to deflect, and limits the deflection angle of the reaction piece (821) through the set limit rod (822), and drives the control block (824) to compress the second spring telescopic rod under the action of the second hinge rod (823). (825) cooperates with the deflection of the reaction member (821). During the deflection of the reaction member (821), the first hinged rod (61) and the auxiliary frame (59) can be synchronously pulled to deflect on the matching frame (60) through the third hinged rod (828), so as to facilitate driving the sliding sleeve (55) to slide on the output shaft (53) through the connecting frame (58), so that the compression spring (56) is compressed, so that the dynamic connecting gear (54) is separated from the gear sleeve (51), and the kinetic energy of the driving gear (32) is released; S2: After the connecting gear (54) is disengaged, it meshes with the side end of the control bevel gear (71), so that it drives the connecting shaft (73) to rotate through the first transmission belt (74), and drives the matching shaft (832) and the control roller (833) to rotate synchronously through the second transmission belt (834). Under the cooperation of the N-type slide groove (835) and the spring block (839), the welding machine (837) is driven to reciprocate along the linkage frame (72). Through the cooperation of the locking frame (838) and the third spring telescopic rod (840), the welding machine (837) can move stably, and During the movement, the welding repair work is performed. When the control roller (833) rotates and drives the control wedge block (836) to contact the side end of the protrusion (830), the control rod (827) and the reaction piece (821) can be reset by the resistance force. At this time, the welding repair work is completed, and the connecting frame (58) is reset synchronously, so that the connecting gear (54) is disengaged from the meshing with the control bevel gear (71) and is re-embedded in the gear sleeve (51), thereby continuing to complete the detection work of the bearing seat, and during the process of resetting the reaction piece (821), the identification pen (811) is synchronously driven to reset; S3: During the deflection of the reaction member (821) and the control rod (827), the L-shaped driving rod (91) is driven to move synchronously along the direction of the release groove (92), thereby driving the connecting rod (93) to disengage from the oblique groove (95) of the pulling block (94), so that the pulling block (94) is instantly released under the action of the fourth spring telescopic rod (96), so that the two sides of the release member (98) are away from the matching wedge block (102), so that under the action of the tension spring (100), the two clamping members (99) are brought closer to each other and abut against and fit on the two sides of the side of the bearing seat, thereby completing the fixation of the bearing seat.

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