Shaft sleeve reaming device for automobile part production

Abstract

The invention relates to the technical field of reaming machining, and discloses a shaft sleeve reaming device for automobile part production, which comprises a workbench, and an equipment box is fixedly mounted at the top end of the workbench. The grinding assembly can be limited by rotating the adjusting assembly, then the driving assembly is started to drive the grinding assembly fixedly installed at the output end of the driving assembly to rotate, then the grinding assembly grinds the inner wall of the shaft sleeve, and in the grinding process, the moving assembly is started to drive the clamping assembly to do reciprocating motion; the clamping assembly drives the shaft sleeve to reciprocate on the outer surface of the grinding assembly so that the inner diameter of the shaft sleeve can be expanded, after the shaft sleeve is expanded to a certain size, the bottom end of the grinding assembly is matched with limitation of the adjusting assembly, the inner diameter of the shaft sleeve cannot be ground and expanded any more, and then the grinding size of the inner diameter of the shaft sleeve can be adjusted and controlled; and repeated measurement is not needed, so that the reaming efficiency of the shaft sleeve reaming device for automobile part production is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hole enlarging processing, in particular to a shaft sleeve hole enlarging device used in the production of automobile parts. Background Art

[0002] Hole expansion is a process in metal processing, which is used to enlarge the diameter of the hole or change the shape of the hole. Hole expansion processes include mechanical hole expansion, cutting hole expansion, stamping hole expansion and heat treatment hole expansion. Hole expansion technology involves various industries and fields. In the automotive industry, hole expansion technology is used for the processing of engine blocks, cylinder liners, transmission bearings and sleeves and other parts.

[0003] The function of the sleeve is to make the mutual work between the shaft and the hole smoother and more reliable, and to increase its service life. The sleeve is usually made of metal materials, such as brass, bronze, steel, etc., and has an axial hole inside to accommodate the shaft. When there is relative motion between the shaft and the hole, the sleeve plays a role in reducing direct friction and wear, protecting the connecting parts of the shaft and the hole, and also reducing energy loss and noise generation.

[0004] When the sleeve is installed between the shaft, it is necessary to sleeve the sleeve on the outer surface of the shaft. However, when the sleeve is produced, it is easy to have a small inner diameter deviation, which is not conducive to installation between the sleeve and the shaft. Therefore, the sleeve needs to be expanded. In the prior art, the expansion device generally expands the inner diameter of the sleeve by grinding. However, the outer diameter of the grinding head of the grinding expansion device cannot be adjusted and controlled. Therefore, during the expansion process, the inner diameter of the hole cannot be accurately controlled. The inner diameter of the sleeve needs to be measured repeatedly, which reduces the expansion efficiency of the expansion device.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0006] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides a sleeve hole expanding device for the production of automobile parts, which has the advantages of being able to adjust and control the inner diameter grinding size of the sleeve and not requiring repeated measurements thereof, thereby solving the problem of being unable to accurately control the inner diameter of the hole and requiring repeated measurements of the inner diameter of the sleeve.

[0007] (II) Technical solution In order to solve the above technical problem that the inner diameter of the hole cannot be accurately controlled and the inner diameter of the sleeve needs to be measured repeatedly, the present invention provides the following technical solution: A shaft sleeve reaming device for automobile parts production comprises a workbench, an equipment box is fixedly mounted on the top of the workbench, a driving assembly is fixedly mounted inside the equipment box, a grinding assembly is fixedly mounted on the output end of the driving assembly, an adjusting assembly is fixedly mounted inside the grinding assembly, a moving assembly is fixedly mounted on the top of the workbench, a clamping assembly is fixedly mounted on one side of the moving assembly, and a shaft sleeve is clamped and fixed on the inner side of the clamping assembly.

[0008] Preferably, the driving assembly comprises a mounting frame, one side of the mounting frame is fixedly mounted to the interior of the equipment box, a motor is fixedly mounted on one side of the mounting frame, and an output end of the motor is fixedly mounted to one end of the grinding assembly.

[0009] Preferably, the grinding assembly includes a rotating shaft, one end of which is fixedly mounted to the output end of the motor, a sliding groove is provided on the outer surface of the rotating shaft, a first wedge block is slidably arranged inside the sliding groove, and a grinding disc is fixedly connected to the top end of the first wedge block.

[0010] Preferably, the grinding assembly further comprises a limiting groove, the limiting groove is arranged on the inner wall of the sliding groove, a limiting block is slidably arranged inside the limiting groove, and one side of the limiting block is fixedly connected to one side of the first wedge block.

[0011] Preferably, the adjustment assembly comprises a slide cylinder, the outer surface of the slide cylinder is slidably arranged with the inner wall of the sliding groove, a tension spring is fixedly connected to the interior of the slide cylinder, one end of the tension spring is fixedly connected to a mounting plate, and one side of the mounting plate is fixedly connected to a threaded sleeve; The interior of the threaded sleeve is fixedly connected with a push rod, the outer surface of the threaded sleeve is fixedly connected with a sliding block, and the outer surface of the sliding block is slidably arranged with the interior of the sliding groove.

[0012] Preferably, the adjustment assembly further comprises a threaded seat and a wedge-shaped groove, the interior of the threaded seat is threadedly connected to the threaded surface of the threaded sleeve, the outer surface of the threaded seat is rotatably provided with a fixed seat, and the outer surface of the fixed seat is fixedly installed with the interior of the rotating shaft; The wedge-shaped groove is formed at the top end of the slide tube, and a second wedge-shaped block is fixedly connected to the inside of the wedge-shaped groove, and the top end of the second wedge-shaped block is fitted with the bottom end of the first wedge-shaped block.

[0013] Preferably, the moving assembly comprises a fixed frame plate and an electric push rod, the bottom end of the fixed frame plate is fixedly mounted on the top end of the workbench, one side of the fixed frame plate is fixedly connected with a sliding rod, one end of the sliding rod is fixedly mounted on one side of the equipment box, a support frame is slidably provided on the outer surface of the sliding rod, and the top end of the support frame is fixedly mounted on the outer surface of the clamping assembly; One side of the electric push rod is fixedly installed with the inside of the equipment box, and the telescopic end of the electric push rod is fixedly installed with one side of the support frame.

[0014] Preferably, the clamping assembly comprises a support block, the outer surface of the support block is fixedly mounted on the top of the support frame, a rotation groove is provided on the top of the support block, a bidirectional screw is rotatably arranged inside the rotation groove, and both ends of the bidirectional screw are fixedly connected to a crank; The thread surface of the bidirectional screw is threadedly connected with a moving block, and the top end of the moving block is fixedly connected with a clamping block.

[0015] Preferably, a limiting rod is fixedly mounted on one side of the clamping block, and an outer surface of the limiting rod is slidably arranged inside the supporting frame.

[0016] Preferably, a door is hingedly provided on one side of the workbench, and a supporting leg is fixedly connected to the bottom end of the workbench.

[0017] (III) Beneficial effects Compared with the prior art, the present invention provides a shaft sleeve hole expanding device for automobile parts production, which has the following beneficial effects: 1. The present invention can limit the grinding component by rotating the adjustment component, and then start the driving component to drive the grinding component fixedly installed at its output end to rotate, so that it grinds the inner wall of the sleeve. During the grinding process, the moving component is started to drive the clamping component to reciprocate, and the clamping component drives the sleeve to reciprocate on the outer surface of the grinding component to expand the inner diameter of the sleeve. When it expands to a certain size, the bottom end of the grinding component cooperates with the limitation of the adjustment component and will no longer grind and expand the inner diameter of the sleeve, so that the grinding size of the inner diameter of the sleeve can be adjusted and controlled without repeated measurement, thereby improving the expansion efficiency of the sleeve expansion device used in the production of automotive parts.

[0018] 2. The present invention drives the threaded sleeve with its internal thread connection to move by rotating the threaded seat. When the threaded sleeve moves, it can drive the mounting plate fixedly connected to one end thereof to move. At the same time, when the threaded sleeve moves, it can drive the push rod fixedly connected therein to move. Since one end of the push rod is in contact with the inner wall of the slide cylinder, when the push rod moves, it can drive the slide cylinder to move, which is convenient for adjusting the position of the slide cylinder. When the slide cylinder moves, it can drive the wedge-shaped groove opened on its top end to move. When the wedge-shaped groove moves, it can drive the second wedge block fixedly connected therein to move. When the second wedge block moves, it can push the first wedge block in contact with its surface to move, and then drive the grinding disc to move, thereby completing the adjustment of the grinding disc position, and then the inner diameter grinding size of the sleeve can be adjusted and controlled, thereby avoiding repeated measurements during the hole expansion process.

[0019] 3. The present invention starts the electric push rod to drive the support frame fixedly installed at its telescopic end to move. Since the interior of the support frame and the outer surface of the sliding rod are slidingly arranged, when the support frame moves, it can slide on the outer surface of the sliding rod, thereby limiting the moving direction of the support frame. At the same time, the sliding rod can support the support frame, thereby improving the stability of the support frame during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention from a rear-view perspective; Figure 3 It is a structural schematic diagram of the present invention from a right viewing angle; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the local structure at point A; Figure 5 It is a schematic diagram of the exploded structure of the grinding assembly of the present invention; Figure 6 For the present invention Figure 5 A magnified schematic diagram of the local structure at B in the middle; Figure 7 It is a schematic diagram of the internal structure of the grinding assembly of the present invention; Figure 8 For the present invention Figure 7 An enlarged schematic diagram of the local structure at point C in the middle.

[0021] In the figure: 1, workbench; 2, equipment box; 3, driving assembly; 301, mounting frame; 302, motor; 4, grinding assembly; 401, rotating shaft; 402, sliding groove; 403, first wedge block; 404, grinding disc; 405, limiting groove; 406, limiting block; 5, adjusting assembly; 501, slide cylinder; 502, tension spring; 503, mounting plate; 504, threaded sleeve; 505, ejector rod; 506, slider; 507 , threaded seat; 508, wedge-shaped groove; 509, fixed seat; 510, second wedge-shaped block; 6, moving assembly; 601, fixed frame plate; 602, electric push rod; 603, sliding rod; 604, support frame; 7, clamping assembly; 701, support block; 702, rotating groove; 703, two-way screw; 704, crank; 705, moving block; 706, clamping block; 8, bushing; 9, limit rod; 10, box door; 11, support leg. DETAILED DESCRIPTION

[0022] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0023] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a sleeve hole expanding device for the production of automobile parts.

[0024] See also Figure 1-8 A bushing hole reaming device for automobile parts production comprises a workbench 1, a device box 2 is fixedly mounted on the top of the workbench 1, a driving assembly 3 is fixedly mounted inside the device box 2, a grinding assembly 4 is fixedly mounted on the output end of the driving assembly 3, an adjusting assembly 5 is fixedly mounted inside the grinding assembly 4, a moving assembly 6 is fixedly mounted on the top of the workbench 1, a clamping assembly 7 is fixedly mounted on one side of the moving assembly 6, and a bushing 8 is clamped and fixed on the inner side of the clamping assembly 7.

[0025] When in use, the sleeve 8 is placed on the inner side of the clamping assembly 7, and then the clamping assembly 7 is rotated to clamp and fix the sleeve 8. Then, the moving assembly 6 is started to drive the clamping assembly 7 fixedly installed on one side to move. When the clamping assembly 7 moves, it can drive the sleeve 8 clamped and fixed on the inner side to move. Then, under the continuous movement of the clamping assembly 7, the sleeve 8 is driven to be sleeved on the outer surface of the grinding assembly 4. The grinding assembly 4 can be limited by rotating the adjusting assembly 5. Then, the driving assembly 3 is started to drive the grinding assembly 4 fixedly installed on its output end to rotate, so that it can clamp the sleeve 8. The inner wall of the shaft sleeve 8 is ground. During the grinding process, the moving component 6 is started to drive the clamping component 7 to perform reciprocating motion. The clamping component 7 drives the sleeve 8 to reciprocate on the outer surface of the grinding component 4, so that the inner diameter of the sleeve 8 is expanded. When it is expanded to a certain size, the bottom end of the grinding component 4 cooperates with the restriction of the adjusting component 5, and the inner diameter of the sleeve 8 will no longer be ground and expanded. Then the moving component 6 is started to drive the clamping component 7 to move in the reverse direction. The clamping component 7 drives the inside of the sleeve 8 to separate from the grinding component 4, and then the clamping component 7 is rotated in the reverse direction to release the clamping and fixation of the sleeve 8, which is more convenient.

[0026] The present invention can limit the grinding component 4 by rotating the adjustment component 5, and then start the driving component 3 to drive the grinding component 4 fixedly installed at its output end to rotate, so that it grinds the inner wall of the sleeve 8. During the grinding process, the moving component 6 is started to drive the clamping component 7 to reciprocate, and the clamping component 7 drives the sleeve 8 to reciprocate on the outer surface of the grinding component 4, so that it expands the inner diameter of the sleeve 8. When it expands to a certain size, the bottom end of the grinding component 4 cooperates with the limitation of the adjustment component 5, and will no longer grind and expand the inner diameter of the sleeve 8, so that the grinding size of the inner diameter of the sleeve 8 can be adjusted and controlled, and there is no need to repeatedly measure it, thereby improving the expansion efficiency of the sleeve expansion device used for the production of automotive parts.

[0027] Furthermore, for the above-mentioned drive component 3, the drive component 3 includes a mounting frame 301, one side of the mounting frame 301 is fixedly installed with the interior of the equipment box 2, one side of the mounting frame 301 is fixedly installed with a motor 302, and the output end of the motor 302 is fixedly installed with one end of the grinding component 4.

[0028] The motor 302 is started to drive the grinding assembly 4 fixedly mounted at its output end to rotate, thereby providing stable power to the grinding assembly 4 .

[0029] Furthermore, for the above-mentioned grinding assembly 4, the grinding assembly 4 includes a rotating shaft 401, one end of the rotating shaft 401 is fixedly installed with the output end of the motor 302, the outer surface of the rotating shaft 401 is provided with a sliding groove 402, a first wedge block 403 is slidably arranged inside the sliding groove 402, and a grinding disc 404 is fixedly connected to the top of the first wedge block 403.

[0030] By starting the motor 302, the rotating shaft 401 fixedly installed at its output end is driven to rotate. When the rotating shaft 401 rotates, it can drive the sliding groove 402 opened on its outer surface to perform circular motion. When the sliding groove 402 performs circular motion, it can drive the first wedge block 403 slidingly arranged inside it to perform circular motion. When the first wedge block 403 performs circular motion, it can drive the grinding disc 404 fixedly connected to its top end to perform circular motion, thereby facilitating the grinding of the inner diameter of the sleeve 8, thereby achieving the purpose of expanding the hole of the sleeve 8.

[0031] Furthermore, for the above-mentioned grinding assembly 4, the grinding assembly 4 also includes a limit groove 405, which is opened on the inner wall of the sliding groove 402, and a limit block 406 is slidingly arranged inside the limit groove 405, and one side of the limit block 406 is fixedly connected to one side of the first wedge block 403.

[0032] The inner wall of the limiting groove 405 is interference fit with the outer surface of the limiting block 406, so when the first wedge block 403 performs a circular motion, it can be prevented from flying out of the sliding groove 402 under the action of centrifugal force, thereby improving the stability of the first wedge block 403 during the circular motion.

[0033] Further, for the above-mentioned adjustment component 5, the adjustment component 5 includes a slide cylinder 501, the outer surface of the slide cylinder 501 is slidably arranged with the inner wall of the sliding groove 402, the interior of the slide cylinder 501 is fixedly connected with a tension spring 502, one end of the tension spring 502 is fixedly connected with a mounting plate 503, and one side of the mounting plate 503 is fixedly connected with a threaded sleeve 504; A push rod 505 is fixedly connected to the inside of the threaded sleeve 504 , and a slider 506 is fixedly connected to the outer surface of the threaded sleeve 504 . The outer surface of the slider 506 is slidably arranged with the inside of the sliding groove 402 .

[0034] A slider 506 is provided on the outer surface of the threaded sleeve 504, and the outer surface of the slider 506 is slidably arranged inside the sliding groove 402, so that it can limit the rotation of the threaded sleeve 504. When the position of the threaded sleeve 504 is fixed, the position of the mounting plate 503 fixedly connected to one side of it can be fixed, so that the tension spring 502 fixedly connected to one side of it is in a stretched state. Since the other end of the tension spring 502 is fixedly connected to the inside of the slide cylinder 501, the tension spring 502 can drive one side of the slide cylinder 501 to fit with one side of the mounting plate 503 under its own tension. Then, by adjusting the position of the threaded sleeve 504, the position of the slide cylinder 501 inside the rotating shaft 401 can be adjusted, which is more convenient.

[0035] Furthermore, for the above-mentioned adjustment component 5, the adjustment component 5 further includes a threaded seat 507 and a wedge-shaped groove 508, the interior of the threaded seat 507 is threadedly connected with the threaded surface of the threaded sleeve 504, and the outer surface of the threaded seat 507 is rotatably provided with a fixed seat 509, and the outer surface of the fixed seat 509 is fixedly installed with the interior of the rotating shaft 401; The wedge-shaped groove 508 is formed at the top of the slide cylinder 501 , and a second wedge-shaped block 510 is fixedly connected to the inside of the wedge-shaped groove 508 . The top of the second wedge-shaped block 510 fits with the bottom of the first wedge-shaped block 403 .

[0036] The threaded sleeve 504 with its internal thread connection is driven to move by rotating the threaded seat 507. When the threaded sleeve 504 moves, it can drive the mounting plate 503 fixedly connected at one end thereof to move. At the same time, when the threaded sleeve 504 moves, it can drive the push rod 505 fixedly connected thereto to move. Since one end of the push rod 505 is in contact with the inner wall of the slide 501, when the push rod 505 moves, it can drive the slide 501 to move, which is convenient for adjusting the position of the slide 501. When the slide 501 moves, it can drive the wedge-shaped groove 508 opened at its top to move. When the wedge-shaped groove 508 moves, it can drive the second wedge block 510 fixedly connected thereto to move. When the second wedge block 510 moves, it can push the first wedge block 403 fitted on its surface to move, thereby driving the grinding disc 404 to move, thereby completing the adjustment of the position of the grinding disc 404, which is relatively convenient.

[0037] Further, for the above-mentioned moving assembly 6, the moving assembly 6 includes a fixed frame plate 601 and an electric push rod 602, the bottom end of the fixed frame plate 601 is fixedly installed with the top end of the workbench 1, one side of the fixed frame plate 601 is fixedly connected with a sliding rod 603, one end of the sliding rod 603 is fixedly installed with one side of the equipment box 2, the outer surface of the sliding rod 603 is slidably provided with a support frame 604, and the top end of the support frame 604 is fixedly installed with the outer surface of the clamping assembly 7; One side of the electric push rod 602 is fixedly installed with the inside of the equipment box 2 , and the telescopic end of the electric push rod 602 is fixedly installed with one side of the support frame 604 .

[0038] By starting the electric push rod 602, the support frame 604 fixedly installed at its telescopic end is driven to move. Since the interior of the support frame 604 and the outer surface of the sliding rod 603 are arranged to slide, when the support frame 604 moves, it can slide on the outer surface of the sliding rod 603, thereby limiting the moving direction of the support frame 604. At the same time, the sliding rod 603 can support the support frame 604, thereby improving the stability of the support frame 604 during movement.

[0039] Further, for the above-mentioned clamping assembly 7, the clamping assembly 7 includes a support block 701, the outer surface of the support block 701 is fixedly installed with the top of the support frame 604, the top of the support block 701 is provided with a rotation groove 702, the inside of the rotation groove 702 is rotatably provided with a bidirectional screw 703, and both ends of the bidirectional screw 703 are fixedly connected with a crank 704; The thread surface of the bidirectional screw 703 is threadedly connected with a moving block 705 , and the top end of the moving block 705 is fixedly connected with a clamping block 706 .

[0040] By turning the crank 704, the bidirectional screw 703 fixedly connected inside it is driven to rotate. When the bidirectional screw 703 rotates, it can drive the moving block 705 threadedly connected on its threaded surface to move. Since the moving blocks 705 are provided in two groups and are symmetrically arranged, when the bidirectional screw 703 rotates, it can drive the two groups of moving blocks 705 threadedly connected on its outer surface to move relative to each other. When the two groups of moving blocks 705 move relatively, they can drive the clamping block 706 fixedly connected at the top to move, so that it can clamp and fix the sleeve 8, which is more convenient.

[0041] Furthermore, for the clamping block 706 , a limiting rod 9 is fixedly mounted on one side of the clamping block 706 , and an outer surface of the limiting rod 9 is slidably arranged inside the support frame 604 .

[0042] When the clamping block 706 moves with the movement of the moving block 705, it can drive the limiting rod 9 fixed on one side thereof to move. When the limiting rod 9 moves, it can move inside the support frame 604 and limit the moving direction of the limiting rod 9, thereby improving the stability of the clamping block 706 during movement.

[0043] Furthermore, for the above-mentioned workbench 1 , a door 10 is hingedly provided on one side of the workbench 1 , and a supporting leg 11 is fixedly connected to the bottom end of the workbench 1 .

[0044] Four groups of support legs 11 are provided, which are symmetrically fixedly connected to the bottom end of the workbench 1, thereby supporting the workbench 1. The setting of the box door 10 facilitates the placement of tools inside the workbench 1, thereby improving the practicality of the sleeve reaming device for automobile parts production.

[0045] Working principle: When in use, the crank 704 is turned to drive the bidirectional screw 703 fixedly connected inside to rotate. When the bidirectional screw 703 rotates, it can drive the moving block 705 threadedly connected on its threaded surface to move. Since the moving blocks 705 are provided with two groups and are symmetrically arranged, when the bidirectional screw 703 rotates, it can drive the two groups of moving blocks 705 threadedly connected on its outer surface to move relative to each other. When the two groups of moving blocks 705 move relatively, they can drive the clamping block 706 fixedly connected at the top to move, and then the sleeve 8 is placed between the clamping blocks 706. When the moving blocks 705 continue to move, they can drive the clamping blocks 706 to move relative to each other. The shaft sleeve 8 is clamped and fixed, and then the electric push rod 602 is started to drive the support frame 604 fixedly installed at its telescopic end to move. When the support frame 604 moves, it can drive the support block 701 fixedly installed at its top to move. The support block 701 cooperates with the rotating groove 702 to drive the bidirectional screw 703 to move. The bidirectional screw 703 can cooperate with the moving block 705 to drive the clamping block 706 to move. When the clamping block 706 moves, it can drive the shaft sleeve 8 clamped and fixed on its inner side to move and make it sleeved on the outer surface of the grinding disc 404. Then the threaded seat 507 is rotated to drive the threaded sleeve 504 with its internal thread connection to move, and the threaded sleeve 504 moves. When the slide 501 moves, it can drive the mounting plate 503 fixedly connected at one end thereof to move. At the same time, when the threaded sleeve 504 moves, it can drive the push rod 505 fixedly connected therein to move. Since one end of the push rod 505 fits with the inner wall of the slide 501, when the push rod 505 moves, it can drive the slide 501 to move, so as to facilitate the adjustment of the position of the slide 501. When the slide 501 moves, it can drive the wedge-shaped groove 508 opened at its top to move. When the wedge-shaped groove 508 moves, it can drive the second wedge block 510 fixedly connected therein to move. When the second wedge block 510 moves, it can push its surface to fit the device The first wedge block 403 is moved, which can drive the grinding plate 404 to move, and the position of the grinding plate 404 is adjusted. Then the motor 302 is started to drive the rotating shaft 401 fixedly installed at its output end to rotate. When the rotating shaft 401 rotates, it can drive the sliding groove 402 provided on its outer surface to perform circular motion. When the sliding groove 402 performs circular motion, it can drive the first wedge block 403 slidingly arranged inside it to perform circular motion. When the first wedge block 403 performs circular motion, it can drive the grinding plate 404 fixedly connected to its top end to perform circular motion, thereby facilitating the grinding of the inner diameter of the sleeve 8, thereby achieving the purpose of expanding the hole of the sleeve 8.

[0046] Through the above technical scheme, 1. The grinding assembly 4 can be limited by rotating the adjustment assembly 5, and then the driving assembly 3 is started to drive the grinding assembly 4 fixedly installed at its output end to rotate, so that it grinds the inner wall of the sleeve 8. During the grinding process, the moving assembly 6 is started to drive the clamping assembly 7 to reciprocate, and the clamping assembly 7 drives the sleeve 8 to reciprocate on the outer surface of the grinding assembly 4, so that it expands the inner diameter of the sleeve 8. When it expands to a certain size, the bottom end of the grinding assembly 4 cooperates with the restriction of the adjustment assembly 5, and will no longer grind and expand the inner diameter of the sleeve 8, so that the grinding size of the inner diameter of the sleeve 8 can be adjusted and controlled, and it is not necessary to measure it repeatedly, thereby improving the expansion efficiency of the sleeve expansion device for the production of automotive parts; 2. The threaded sleeve 504 with internal thread connection is driven to move by rotating the threaded seat 507. When the threaded sleeve 504 moves, it can drive the mounting plate 503 fixedly connected at one end thereof to move. At the same time, when the threaded sleeve 504 moves, it can drive the push rod 505 fixedly connected inside thereof to move. Since one end of the push rod 505 is in contact with the inner wall of the slide cylinder 501, when the push rod 505 moves, it can drive the slide cylinder 501 to move, thereby facilitating the adjustment of the position of the slide cylinder 501. When the slide 501 moves, it can drive the wedge-shaped groove 508 opened at its top to move. When the wedge-shaped groove 508 moves, it can drive the second wedge block 510 fixedly connected thereto to move. When the second wedge block 510 moves, it can push the first wedge block 403 fitted on its surface to move, thereby driving the grinding sheet 404 to move, and completing the adjustment of the position of the grinding sheet 404. Then, the inner diameter grinding size of the sleeve 8 can be adjusted and controlled, thereby avoiding repeated measurements during the hole expansion process. 3. By starting the electric push rod 602, the support frame 604 fixedly installed at its telescopic end is driven to move. Since the interior of the support frame 604 is slidingly arranged with the outer surface of the sliding rod 603, when the support frame 604 moves, it can slide on the outer surface of the sliding rod 603, thereby limiting the moving direction of the support frame 604. At the same time, the sliding rod 603 can support the support frame 604, thereby improving the stability of the support frame 604 during movement.

[0047] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A sleeve hole expanding device for automobile parts production, comprising a workbench (1), characterized in that: A device box (2) is fixedly mounted on the top of the workbench (1), a driving assembly (3) is fixedly mounted inside the device box (2), a grinding assembly (4) is fixedly mounted on the output end of the driving assembly (3), an adjusting assembly (5) is fixedly mounted inside the grinding assembly (4), a moving assembly (6) is fixedly mounted on the top of the workbench (1), a clamping assembly (7) is fixedly mounted on one side of the moving assembly (6), and a shaft sleeve (8) is clamped and fixed on the inner side of the clamping assembly (7).

2. The sleeve hole expanding device for automobile parts production according to claim 1, characterized in that: The driving assembly (3) comprises a mounting frame (301), one side of the mounting frame (301) being fixedly mounted inside the equipment box (2), a motor (302) being fixedly mounted on one side of the mounting frame (301), and an output end of the motor (302) being fixedly mounted on one end of the grinding assembly (4).

3. The sleeve hole expanding device for automobile parts production according to claim 2, characterized in that: The grinding assembly (4) comprises a rotating shaft (401), one end of the rotating shaft (401) is fixedly mounted to the output end of the motor (302), a sliding groove (402) is provided on the outer surface of the rotating shaft (401), a first wedge block (403) is slidably arranged inside the sliding groove (402), and a grinding disc (404) is fixedly connected to the top end of the first wedge block (403).

4. The sleeve hole expanding device for automobile parts production according to claim 3, characterized in that: The grinding assembly (4) further comprises a limit groove (405), wherein the limit groove (405) is provided on the inner wall of the sliding groove (402), a limit block (406) is slidably arranged inside the limit groove (405), and one side of the limit block (406) is fixedly connected to one side of the first wedge block (403).

5. The sleeve hole expanding device for automobile parts production according to claim 4, characterized in that: The adjustment component (5) comprises a slide cylinder (501), the outer surface of the slide cylinder (501) is slidably arranged with the inner wall of the slide groove (402), a tension spring (502) is fixedly connected to the interior of the slide cylinder (501), one end of the tension spring (502) is fixedly connected to a mounting plate (503), and one side of the mounting plate (503) is fixedly connected to a threaded sleeve (504); The interior of the threaded sleeve (504) is fixedly connected to a push rod (505), the outer surface of the threaded sleeve (504) is fixedly connected to a sliding block (506), and the outer surface of the sliding block (506) is slidably arranged with the interior of the sliding groove (402).

6. The shaft sleeve hole expanding device for automobile parts production according to claim 5, characterized in that: The adjustment assembly (5) further comprises a threaded seat (507) and a wedge-shaped groove (508); the interior of the threaded seat (507) is threadedly connected to the threaded surface of the threaded sleeve (504); a fixed seat (509) is rotatably provided on the outer surface of the threaded seat (507); and the outer surface of the fixed seat (509) is fixedly mounted to the interior of the rotating shaft (401); The wedge-shaped groove (508) is formed at the top end of the slide cylinder (501), and a second wedge-shaped block (510) is fixedly connected to the inside of the wedge-shaped groove (508), and the top end of the second wedge-shaped block (510) fits with the bottom end of the first wedge-shaped block (403).

7. The sleeve hole expanding device for automobile parts production according to claim 1, characterized in that: The moving assembly (6) comprises a fixed frame plate (601) and an electric push rod (602), the bottom end of the fixed frame plate (601) is fixedly mounted on the top end of the workbench (1), one side of the fixed frame plate (601) is fixedly connected to a sliding rod (603), one end of the sliding rod (603) is fixedly mounted on one side of the equipment box (2), a support frame (604) is slidably provided on the outer surface of the sliding rod (603), and the top end of the support frame (604) is fixedly mounted on the outer surface of the clamping assembly (7); One side of the electric push rod (602) is fixedly mounted inside the equipment box (2), and the telescopic end of the electric push rod (602) is fixedly mounted on one side of the support frame (604).

8. The sleeve hole expanding device for automobile parts production according to claim 7, characterized in that: The clamping assembly (7) comprises a support block (701), the outer surface of the support block (701) is fixedly mounted on the top of the support frame (604), a rotation groove (702) is provided on the top of the support block (701), a bidirectional screw rod (703) is rotatably arranged inside the rotation groove (702), and both ends of the bidirectional screw rod (703) are fixedly connected to a crank handle (704); The threaded surface of the bidirectional screw (703) is threadedly connected to a moving block (705), and the top end of the moving block (705) is fixedly connected to a clamping block (706).

9. The sleeve hole expanding device for automobile parts production according to claim 8, characterized in that: A limiting rod (9) is fixedly mounted on one side of the clamping block (706), and an outer surface of the limiting rod (9) is slidably arranged inside the support frame (604).

10. The sleeve hole expanding device for automobile parts production according to claim 1, characterized in that: A box door (10) is hingedly provided on one side of the workbench (1), and a supporting leg (11) is fixedly connected to the bottom end of the workbench (1).

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