Automatic sliding hammer puller for disassembling pin of cubic press

Abstract

The invention discloses an automatic sliding hammer puller for disassembling a pin of a cubic press, which comprises a sliding rod and a sliding hammer, and further comprises a rotating piece, a mounting column, an impact seat, a guide rod and a threaded joint are sequentially and integrally formed on the sliding rod from left to right, a limiting block is mounted on the threaded joint, and the threaded joint extends out of the limiting block and is mounted on the pin in a threaded manner; the guide rod is sleeved with a sliding weight and a spring, one end of the spring abuts against the sliding weight, the other end of the spring abuts against the limiting block, and the sliding weight elastically abuts against the impact seat through the spring. A rotating clamping head is arranged at one end of the rotating part, a pushing part is detachably arranged at the other end of the rotating part, and the mounting column is rotationally mounted on the pushing part; a plurality of check blocks are sequentially arranged on the outer ring face of the sliding hammer in the circumferential direction of the sliding hammer, a pushing inclined face is arranged on one inner side of each check block, pushing rods are arranged at the positions, corresponding to the pushing inclined faces one to one, of the pushing piece, and the ends of the pushing rods abut against the pushing inclined faces.

Description

Technical Field

[0001] The invention relates to the technical field of tools for dismantling pins, in particular to an automatic sliding hammer puller for dismantling pins by a six-sided top press. Background Art

[0002] Six-sided presses are widely used in industrial production, and the pins inside them need to be disassembled for maintenance or replacement after long-term use. However, due to the structural characteristics and working environment of the six-sided press, the pins are often subjected to greater pressure and friction, making it extremely difficult to disassemble, so tools are needed for disassembly.

[0003] In the prior art, a utility model patent with patent number CN201821627021.6 discloses a sliding hammer puller for disassembling shafts and bearings, comprising a long shaft, one end of which is threaded and screwed to a head shaft with an internal threaded hole. The head of the head shaft has a round boss, a slotted hole in the middle of the head shaft, holes are punched at both ends of the slot to install fixing screws a and fixing screws b, and a handle shaft for hand holding is installed in the middle of the long shaft. The handle shaft is ellipsoidal, and the hole in the middle of the handle shaft can slide along the long shaft. The other end of the long shaft is a tail shaft with an internal threaded hole, and the internal threaded hole of the tail shaft is screwed to an external screw.

[0004] The above patent provides a sliding hammer puller that can be used to dismantle pins. The device manually controls the pulling hammer to hit the pulling rod back and forth, and through the inertia of the impact, the pulling rod can drive the pin to gradually slide out; although the device can effectively help workers complete the dismantling work, the device manually controls the pulling hammer to hit the pulling rod back and forth, which not only has a large workload and low efficiency, but also the force applied by the staff each time is difficult to control accurately, which can easily lead to excessive force and damage to the workpiece; further improvement is needed. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic slide hammer puller for dismantling pins of a six-sided top press, aiming to improve the existing slide hammer puller. Although it can effectively help workers complete the dismantling work, the device uses manually controlled pulling hammers to hit the pulling rods back and forth, which not only has a large workload and low efficiency, but also the force applied by the staff each time is difficult to be accurately controlled, which can easily lead to the problem of damage to the workpiece due to excessive force.

[0006] The present invention is implemented as follows: an automatic sliding hammer puller for disassembling pins of a six-sided top press comprises a sliding rod and a sliding hammer, and also comprises a rotating part; the sliding rod is integrally formed with a mounting column, an impact seat, a guide rod and a threaded joint in sequence from left to right, a limit block is installed on the threaded joint, and the threaded joint extends out of the limit block and is threadedly installed on the pin; a sliding hammer and a spring are respectively mounted on the guide rod, one end of the spring abuts on the sliding hammer, and the other end abuts on the limit block, and the sliding hammer abuts on the impact seat through the elasticity of the spring; a rotating chuck is provided at one end of the rotating part, and a pushing part is detachably provided at the other end, and the mounting column is rotatably installed on the pushing part; a plurality of blocks are sequentially provided on the outer ring surface of the sliding hammer along its circumferential direction, a pushing inclined surface is provided on an inner side of the block, and a push rod is provided on the push member corresponding to the position of the pushing inclined surface, and the end of the push rod abuts on the pushing inclined surface.

[0007] Preferably, the rotating member also includes a connecting bolt, and the pushing member includes a connecting plate, one end surface of the connecting plate is provided with a rotating member via a connecting bolt, and the other end surface is provided with a push rod; a rotating hole is opened at the center position of the connecting plate, a thrust bearing is provided on the rotating hole, and the mounting column is rotatably mounted on the rotating hole via the thrust bearing.

[0008] Preferably, a fixing nut is further included, the end of the mounting column extends out of the thrust bearing and is provided with a threaded surface, and the fixing nut is threadedly mounted on the threaded surface of the end of the mounting column.

[0009] Preferably, the guide rod comprises a guide plate, the side of the guide rod is symmetrically provided with guide plates along its length direction, a sliding hole matched with the guide rod is provided at the center position of the slide hammer, and the slide hammer is slidably mounted on the guide rod through the sliding hole.

[0010] Preferably, the sliding hammer further comprises an impact head, and the end surface where the sliding hammer abuts against the impact seat is provided with the impact head matched with the impact seat.

[0011] Preferably, a mounting nut is further included, and the limit block is sleeved on the threaded joint and fixedly installed by the mounting nut.

[0012] Preferably, the rotating chuck is a three-sided flat structure for connecting to an external power tool.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention provides a pushing member on the rotating member to push the sliding hammer, so that the sliding hammer compresses the spring to a fixed distance, and then pushes the sliding hammer to impact the impact seat through the elastic release of the spring, so that the force of each impact is the same, thereby making the pulling force on the pin the same each time, and at the same time, the impact force can be controlled by replacing springs with different elastic forces to avoid damage to the workpiece caused by excessive force, and there is no need to manually slide the sliding hammer for impact, which reduces the difficulty of operation for workers.

[0015] 2. The present invention provides a stopper with a push inclined surface on the slide hammer, and the slide hammer can be pushed to move by sliding the push rod on the push inclined surface, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 It is a side cross-sectional structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic structural diagram of the assembly of the rotating member and the pushing member of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the pusher of the present invention;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the slide bar of the present invention;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the slide hammer of the present invention.

[0022] In the figure: 1, rotating member; 101, rotating chuck; 102, connecting bolt; 2, pushing member; 201, connecting plate; 202, pushing rod; 203, rotating hole; 3, sliding rod; 301, mounting column; 302, impact seat; 303, guide rod; 304, threaded joint; 305, guide plate; 4, sliding hammer; 401, sliding hole; 402, stopper; 403, pushing inclined surface; 404, impact head; 5, spring; 6, thrust bearing; 7, fixing nut; 8, limit block; 9, mounting nut. DETAILED DESCRIPTION

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0025] Example 1

[0026] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, an automatic slide hammer puller for dismantling pins of a six-sided top press includes a slide rod 3 and a slide hammer 4, and also includes a rotating part 1. The slide rod 3 is integrally formed with a mounting column 301, an impact seat 302, a guide rod 303 and a threaded joint 304 from left to right, and a limit block 8 is installed on the threaded joint 304, and the limit block 8 extends from the threaded joint 304 and is threadedly installed on the pin. In addition, it also includes a mounting nut 9, and the limit block 8 is sleeved on the threaded joint 304 and fixedly installed by the mounting nut 9. By setting the mounting nut 9, the limit block 8 can be fixedly set on the threaded joint 304 to prevent it from falling off during operation. The guide rod 303 is respectively sleeved with a slide hammer 4 and a spring 5, one end of the spring 5 abuts on the slide hammer 4, and the other end abuts on the limit block 8, and the slide hammer 4 elastically abuts on the impact seat 302 through the spring 5. The slide hammer 4 also includes a striking head 404, and the end surface of the slide hammer 4 abutting against the striking seat 302 is provided with the striking head 404 adapted to the striking seat 302. The guide rod 303 includes a guide plate 305, and the side surface of the guide rod 303 is symmetrically provided with the guide plate 305 along its length direction. The center position of the slide hammer 4 is provided with a sliding hole 401 adapted to the guide rod 303, and the slide hammer 4 is slidably installed on the guide rod 303 through the sliding hole 401. By providing the guide plate 305, the slide hammer 4 will not rotate during the sliding process along the guide plate 305. The slide hammer 4 abuts against the striking seat 302 through the spring 5, so that the slide hammer 4 is subjected to a certain elastic thrust, so that the slide hammer 4 automatically strikes the striking seat 302 through the elasticity of the spring 5.

[0027] like Figure 2-Figure 6As shown, a rotating chuck 101 is provided at one end of the rotating member 1. The rotating chuck 101 is a three-sided flat structure for connecting an external power tool. The rotating chuck 101 is sequentially provided with three flat positions along its circumferential direction, which can be adapted to the three-jaw clamping head of an existing electric drill. The electric drill can clamp the rotating chuck 101 through the clamping head to drive it to rotate. The operation is simple and convenient, and it is easy to select a rotating tool. A pusher 2 is detachably provided at the other end, and a mounting column 301 is rotatably mounted on the pusher 2. By clamping the rotating end of the external power tool on the rotating chuck 101, the rotating member 1 can be conveniently driven to rotate by the external power tool. The rotating member 1 also includes a connecting bolt 102, and the pushing member 2 includes a connecting plate 201. One end face of the connecting plate 201 is provided with the rotating member 1 through the connecting bolt 102, and the other end face is provided with a push rod 202. A rotation hole 203 is provided at the center of the connecting plate 201, and a thrust bearing 6 is provided on the rotation hole 203. The mounting column 301 is rotatably mounted on the rotation hole 203 through the thrust bearing 6. When the rotating member 1 drives the pushing member 2 to rotate, the guide rod 303 will generate a relative force between the thrust bearing 6 and the pushing member 2, so that the rotation effect of the pushing member 2 will not affect the guide rod 303, so that the guide rod 303 is fixed relative to the pin. In addition, a fixing nut 7 is included. The end of the mounting column 301 extends from the thrust bearing 6 and is provided with a threaded surface. The fixing nut 7 is threadedly mounted on the threaded surface of the end of the mounting column 301. The mounting end of the mounting column 301 can be fixed by the fixing nut 7 to prevent it from falling off during the working process. The outer ring surface of the slide hammer 4 is provided with a plurality of blocks 402 in sequence along its circumferential direction, and a push inclined surface 403 is provided on one inner side of the block 402. The push rods 202 are provided at positions corresponding to the push inclined surfaces 403 one by one on the push member 2, and the end of the push rod 202 abuts against the push inclined surface 403. During the rotation of the push member 2, the push rod 202 will slide along the push inclined surface 403, and make the slide hammer 4 slide toward the spring 5, compressing the spring 5. When the push rod 202 rotates to the end surface of the block 402, the block 402 will fall off, so that the slide hammer 4 is no longer abutted by the push rod 202, and the elastic force of the spring 5 is released, pushing the slide hammer 4 to hit the impact seat 302. The impact force of the impact generates a certain pulling force on the pin connected to the end of the threaded joint 304.

[0028] Example 2

[0029] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, an automatic slide hammer puller for dismantling pins of a six-sided top press includes a slide rod 3 and a slide hammer 4, and also includes a rotating part 1. The slide rod 3 is integrally formed with a mounting column 301, a striking seat 302, a guide rod 303 and a threaded joint 304 from left to right, and a limit block 8 is installed on the threaded joint 304, and the limit block 8 extends from the threaded joint 304 and is threadedly installed on the pin. In addition, it also includes a mounting nut 9, and the limit block 8 is sleeved on the threaded joint 304 and fixedly installed by the mounting nut 9. The guide rod 303 is respectively sleeved with a slide hammer 4 and a spring 5, one end of the spring 5 abuts on the slide hammer 4, and the other end abuts on the limit block 8, and the slide hammer 4 elastically abuts on the striking seat 302 through the spring 5. The slide hammer 4 also includes an impact head 404, and the end face where the slide hammer 4 abuts against the striking seat 302 is provided with an impact head 404 that matches the striking seat 302. The guide rod 303 includes a guide plate 305 , and the guide plates 305 are symmetrically arranged on the side of the guide rod 303 along its length direction. A sliding hole 401 adapted to the guide rod 303 is arranged at the center position of the sliding hammer 4, and the sliding hammer 4 is slidably installed on the guide rod 303 through the sliding hole 401.

[0030] like Figure 2-Figure 6 As shown, a rotating chuck 101 is provided at one end of the rotating member 1. The rotating chuck 101 is a three-sided flat structure for connecting an external electric tool. The rotating chuck 101 is sequentially provided with three flat positions along its circumferential direction, which can be adapted to the three-claw clamping head of the existing electric drill. The electric drill can clamp the rotating chuck 101 through the clamping head and drive it to rotate. The operation is simple and convenient, and it is easy to select the rotating tool. A pusher 2 is detachably provided at the other end, and a mounting column 301 is rotatably mounted on the pusher 2. The rotating member 1 also includes a connecting bolt 102, and the pushing member 2 includes a connecting plate 201. The rotating member 1 is provided on one end surface of the connecting plate 201 through the connecting bolt 102, and a push rod 202 is provided on the other end surface. A rotating hole 203 is opened at the center position of the connecting plate 201, and a thrust bearing 6 is provided on the rotating hole 203. The mounting column 301 is rotatably mounted on the rotating hole 203 through the thrust bearing 6. In addition, a fixing nut 7 is included. The end of the mounting column 301 extends a thrust bearing 6 and is provided with a threaded surface. The fixing nut 7 is threadedly mounted on the threaded surface of the end of the mounting column 301. The outer ring surface of the slide hammer 4 is provided with a plurality of stoppers 402 in sequence along its circumferential direction. An inner side of the stopper 402 is provided with a push inclined surface 403. The push member 2 is provided with push rods 202 corresponding to the push inclined surface 403. The end of the push rod 202 abuts against the push inclined surface 403.

[0031] The working principle of the present invention is as follows: when in use, the threaded joint 304 at the end of the slide rod 3 is installed on the pin, and then clamped on the rotating chuck 101 through an external electric tool, driving the rotating member 1 to rotate, and the rotating member 1 drives the pushing member 2 to rotate. During the rotation of the pushing member 2, the push rod 202 slides along the pushing inclined surface 403, and gradually pushes the slide hammer 4 to slide on the guide rod 303, which produces a certain compression on the spring 5. When the push rod 202 moves to the end face of the stop block 402, it will break away from the stop block 402, and then the slide hammer 4 releases the elastic force through the compressed spring and hits the impact seat 302. The impact force generated by the collision between the slide hammer 4 and the impact seat 302 will move the slide rod 3 backward and gradually pull out the pin.

[0032] To summarize, the present invention pushes the slide hammer 4 by arranging a pushing member 2 on the rotating member 1, so that the slide hammer 4 compresses the spring 5 to a fixed distance, and then pushes the slide hammer 4 to impact the impact seat 302 through the elastic release of the spring 5, so that the force of each impact is the same, thereby making the pulling force on the pin the same each time, and at the same time, the impact force can be controlled by replacing the spring 5 with different elastic forces to avoid damage to the workpiece caused by excessive force, and there is no need to manually slide the slide hammer for impact, thereby reducing the difficulty of operation for workers; by arranging a block 402 with a pushing inclined surface 403 on the slide hammer 4, the slide hammer 4 can be pushed to move by sliding on the pushing inclined surface 403 through the push rod 202, which is simple and convenient.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic slide hammer puller for dismantling pins of a six-sided top press, comprising a slide bar (3) and a slide hammer (4), characterized in that: The invention also comprises a rotating member (1); the sliding rod (3) is integrally formed with a mounting column (301), a collision seat (302), a guide rod (303) and a threaded joint (304) from left to right, a limit block (8) is installed on the threaded joint (304), and the threaded joint (304) extends from the limit block (8) and is threadedly installed on the pin; the guide rod (303) is respectively provided with a sliding hammer (4) and a spring (5), one end of the spring (5) is abutted on the sliding hammer (4), and the other end is abutted on the limit block (8), and the sliding hammer (4) is elastically moved by the spring (5). The rotating member (1) is rotatably abutted against the impact seat (302); a rotating chuck (101) is provided at one end of the rotating member (1), and a pushing member (2) is detachably provided at the other end, and the mounting column (301) is rotatably mounted on the pushing member (2); a plurality of stoppers (402) are sequentially provided on the outer ring surface of the sliding hammer (4) along its circumferential direction, and a pushing inclined surface (403) is provided on an inner side of the stopper (402); the pushing member (2) is provided with push rods (202) at positions corresponding to the pushing inclined surfaces (403), and the end of the push rod (202) abuts against the pushing inclined surface (403).

2. The automatic slide hammer puller for dismantling pins of a six-sided top press according to claim 1 is characterized in that: The rotating member (1) also includes a connecting bolt (102), and the pushing member (2) includes a connecting plate (201). The rotating member (1) is arranged on one end surface of the connecting plate (201) via the connecting bolt (102), and the pushing rod (202) is arranged on the other end surface. A rotating hole (203) is opened at the center position of the connecting plate (201), and a thrust bearing (6) is arranged on the rotating hole (203). The mounting column (301) is rotatably mounted on the rotating hole (203) via the thrust bearing (6).

3. The automatic slide hammer puller for dismantling pins of a six-sided top press according to claim 2 is characterized in that: It also includes a fixing nut (7), the end of the mounting column (301) extends out of the thrust bearing (6) and is provided with a threaded surface, and the fixing nut (7) is threadedly mounted on the threaded surface of the end of the mounting column (301).

4. The automatic slide hammer puller for dismantling pins of a six-sided top press according to claim 1 is characterized in that: The guide rod (303) comprises a guide plate (305), and the side of the guide rod (303) is symmetrically provided with guide plates (305) along its length direction. A sliding hole (401) adapted to the guide rod (303) is provided at the center position of the slide hammer (4), and the slide hammer (4) is slidably mounted on the guide rod (303) through the sliding hole (401).

5. The automatic slide hammer puller for dismantling pins of a six-sided top press according to claim 1, characterized in that: The sliding hammer (4) further comprises an impact head (404), and the end surface where the sliding hammer (4) and the impact seat (302) abut is provided with an impact head (404) adapted to the impact seat (302).

6. The automatic slide hammer puller for dismantling pins of a six-sided top press according to claim 1, characterized in that: It also includes a mounting nut (9), and the limit block (8) is sleeved on the threaded joint (304) and fixedly mounted by the mounting nut (9).

7. The automatic slide hammer puller for dismantling pins of a six-sided top press according to claim 1, characterized in that: The rotating chuck (101) is a three-sided flat structure and is used for connecting to an external electric tool.

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