A press-fitting device for machining connecting rod copper sleeves

Abstract

This utility model provides a pressing device for processing connecting rod copper sleeves, relating to the technical field of connecting rod copper sleeve pressing devices. The utility model includes a machine body, a positioning device on the outer surface of a bearing block, and a frame rod. A rotating shaft is rotatably connected to the outer surface of the frame rod, and a U-shaped block is fixedly connected to the outer surface of the rotating shaft. By setting up the positioning device and installing a rotatable U-shaped block on the outer surface of the bearing platform, the angle of the U-shaped block is limited by a coil spring at one end of the rotating shaft, ensuring that the middle portion of the outer surface of the connecting rod is positioned between two clamping blocks. The distance between the two clamping blocks is adjusted by rotating a threaded cylinder to match the size of the outer surface of the connecting rod. During pressing, the angle between the connecting rod and the bearing platform is limited by the two clamping blocks on the outer surface of the U-shaped block, preventing the end of the connecting rod away from the positioning block from lateral deviation, thus improving the stability and practicality of the pressing device.

Description

Technical Field

[0001] This utility model relates to the technical field of connecting rod copper sleeve pressing device, and in particular to a pressing device for processing connecting rod copper sleeve. Background Technology

[0002] Connecting rod bushings are key components in mechanical systems used to reduce friction and support reciprocating motion parts. They are widely used in internal combustion engines, compressors, hydraulic equipment, and other fields. When assembling connecting rods and bushings, a press-fitting device is usually used to press the bushing into the connecting rod.

[0003] When using a press-fitting device to press-fit the connecting rod copper sleeve, the round hole at one end of the connecting rod is fitted onto the outside of a positioning block of the device. Then, the copper sleeve is placed in the round hole of the connecting rod. The hydraulic rod drives the pressure block to descend and press the copper sleeve into the connecting rod. During the pressing process, the contact point between the copper sleeve and the connecting rod will directly bear the pressure. When there is an angular deviation at the contact point between the bottom end of the copper sleeve and the inner wall of the through hole of the connecting rod, the end of the connecting rod away from the positioning block may rotate during the pressing process, thus affecting the pressing effect between the copper sleeve and the connecting rod and reducing the effectiveness of the press-fitting device. Utility Model Content

[0004] The purpose of this invention is to solve the problem that during the pressing process of the copper sleeve, the contact point between the copper sleeve and the connecting rod directly bears pressure. When there is an angular deviation at the contact point between the bottom end of the copper sleeve and the inner wall of the through hole of the connecting rod, the end of the connecting rod away from the positioning block may rotate during the pressing process of the copper sleeve, thereby affecting the pressing effect of the copper sleeve and the connecting rod and reducing the performance of the pressing device. Therefore, this invention proposes a pressing device for processing connecting rod copper sleeves.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a press-fitting device for processing connecting rod copper sleeves, comprising a machine body, a hydraulic rod provided on one side of the top end of the machine body, a pressure block installed on the output rod of the hydraulic rod, two bearing blocks fixedly connected to the outer surface of the machine body, a positioning block installed inside one of the bearing blocks with the aid of an auxiliary device, a connecting rod body and a copper sleeve body provided on the outer surface of the bearing block, one end of the connecting rod body and the copper sleeve body being fitted onto the outer surface of the positioning block, and a positioning device provided on the outer surface of one of the bearing blocks to further restrict the position of the connecting rod body on the outer surface of the bearing block.

[0006] Furthermore, the positioning device includes a support rod, one end of which is fixedly connected to the outer surface of the bearing block (without a positioning block). A rotating shaft is rotatably connected to the outer surface of the support rod. A coil spring is provided at one end of the rotating shaft. The two ends of the coil spring are fixedly connected to one side of the rotating shaft and one side of the support rod, respectively. A U-shaped block is fixedly connected to the outer surface of the rotating shaft. Two rings are fixedly connected to one side of the U-shaped block. A threaded cylinder is rotatably connected to the inner wall of the rings. Support rods are slidably connected to both ends of the U-shaped block. A clamping block and a screw are fixedly connected to both ends of the support rod, respectively. The outer surface of the screw is threadedly connected to the inner wall of the threaded cylinder. The threads on the outer surfaces of the two screws are opposite in direction.

[0007] Furthermore, an auxiliary piece is fixedly connected to the top of the pressure block, and the top edge of the auxiliary piece is arc-shaped.

[0008] Furthermore, rubber blocks are fixedly connected to both sides of the outer surface of the U-shaped block, and the top edge of the rubber blocks is arc-shaped.

[0009] Furthermore, a rubber limiting block is fixedly connected to one side of the ring, and the outer surface of the threaded cylinder slides on one side of the limiting block.

[0010] Furthermore, a number of raised strips are fixedly connected to the outer surface of the threaded cylinder, and the raised strips are distributed circumferentially on the outer surface of the threaded cylinder.

[0011] Furthermore, the auxiliary device includes a slide rod, a circular groove is provided inside the bearing block, the slide rod slides on the inner wall of the circular groove, a spring is provided at the bottom end of the slide rod, the upper and lower ends of the spring are fixedly connected to the bottom end of the slide rod and the bottom end of the inner wall of the circular groove, respectively, and the bottom end of the positioning block is fixedly connected to the top end of the slide rod.

[0012] Furthermore, a positioning rod is fixedly connected to the bottom of the inner wall of the circular groove, a sliding rod slides on the outer surface of the positioning rod, and a spring is sleeved on the outside of the positioning rod.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, a positioning device is provided, and a rotatable U-shaped block is installed on the outer surface of the support platform. The angle of the U-shaped block is limited by a coil spring at one end of the rotating shaft, so that the middle part of the outer surface of the connecting rod is located between two clamping blocks. The distance between the two clamping blocks is adjusted by rotating the threaded cylinder to match the size of the outer surface of the connecting rod. During the pressing process, the angle between the connecting rod and the support platform is limited by the two clamping blocks on the outer surface of the U-shaped block, which prevents the end of the connecting rod away from the positioning block from tilting to the left or right, thereby improving the stability and practicality of the pressing device. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the body of this utility model;

[0017] Figure 3 This utility model Figure 2 A magnified three-dimensional structural diagram of point A;

[0018] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the liquid body of this utility model.

[0019] Figure 5 This utility model Figure 4 A magnified three-dimensional structural diagram of part B;

[0020] Figure 6 This is a three-dimensional structural diagram of the support pole of this utility model.

[0021] Legend: 1. Body; 2. Positioning device; 21. Frame rod; 22. Rotating shaft; 23. Coil spring; 24. U-shaped block; 25. Ring; 26. Threaded cylinder; 27. Screw; 28. Support rod; 29. ​​Clamping block; 210. Auxiliary plate; 211. Rubber block; 212. Limiting block; 213. Protruding strip; 3. Auxiliary device; 31. Circular groove; 32. Slide rod; 33. Spring; 34. Positioning rod; 4. Hydraulic rod; 5. Pressure block; 6. Bearing block; 7. Positioning block; 8. Connecting rod body; 9. Copper sleeve body. Detailed Implementation

[0022] Example 1, such as Figure 1-3 As shown, a press-fitting device for processing connecting rod copper sleeves includes a body 1. A hydraulic rod 4 is provided on one side of the top of the body 1. A pressure block 5 is installed on the output rod of the hydraulic rod 4. Two bearing blocks 6 are fixedly connected to the outer surface of the body 1. A positioning block 7 is installed inside one of the bearing blocks 6 with the help of an auxiliary device 3. A connecting rod body 8 and a copper sleeve body 9 are provided on the outer surface of the bearing block 6. One end of the connecting rod body 8 and the copper sleeve body 9 are fitted onto the outer surface of the positioning block 7. A positioning device 2 is provided on the outer surface of one of the bearing blocks 6 to further restrict the position of the connecting rod body 8 on the outer surface of the bearing block 6.

[0023] Reference Figure 1-6As shown, in this embodiment: the positioning device 2 includes a support rod 21, one end of which is fixedly connected to the outer surface of the bearing block 6 without the positioning block 7. A rotating shaft 22 is rotatably connected to the outer surface of the support rod 21. A coil spring 23 is provided at one end of the rotating shaft 22. The two ends of the coil spring 23 are fixedly connected to one side of the rotating shaft 22 and one side of the support rod 21, respectively. A U-shaped block 24 is fixedly connected to the outer surface of the rotating shaft 22. Two rings 25 are fixedly connected to one side of the U-shaped block 24. A threaded cylinder 26 is rotatably connected to the inner wall of the rings 25. Support rods 28 are slidably connected to both ends of the U-shaped block 24. Clamping blocks 29 and screws 27 are fixedly connected to both ends of the support rods 28, respectively. The outer surface of the screw 27 is threadedly connected to the inner wall of the threaded cylinder 26. The threads on the outer surface of the screw 27 are reversed. When pressing the connecting rod body 8 and the copper sleeve body 9 using the pressing device by setting the U-shaped block 24, the end of the connecting rod body 8 that needs to be pressed with the copper sleeve body 9 is placed on the outer surface of the bearing block 6 with the positioning block 7 and fitted onto the outer surface of the positioning block 7. The other end rests on the outer surface of another bearing block 6. Then, the copper sleeve body 9 is placed inside the through hole of the connecting rod body 8 and fitted onto the outside of the positioning block 7. When the connecting rod body 8 is inserted, the outer surface of the connecting rod body 8 will contact the top of the U-shaped block 24. If the middle part of the outer surface of the connecting rod body 8 protrudes below the top surface of the two bearing platforms, it will push the U-shaped block 24 to control the U-shaped block 24 to rotate through the rotating shaft 22. The coil spring 23 at one end of the rotating shaft 22 will drive the rotating shaft 22 and the U-shaped block 24 to rotate. The U-shaped block 24 rotates upward, ensuring it remains in constant contact with the outer surface of the connecting rod body 8. At this point, the middle section of the outer surface of the connecting rod body 8 is positioned between the two ends of the U-shaped block 24. Rotating the threaded cylinder 26 on the outer surface of the U-shaped block 24 controls the two screws 27 to move in the same direction along the inner wall of the threaded cylinder 26. This causes the two screws 27 to move the clamping blocks 29 on the outer surface of the U-shaped block 24 via the support rod 28, bringing the sides of the two clamping blocks 29 closer together into contact with both sides of the outer surface of the connecting rod body 8. Then, the control knob on the outer surface of the machine body 1 controls the operation of the hydraulic rod 4. The hydraulic rod 4 extends, pushing the pressure block 5 downward. The pressure block 5 presses against the top of the copper sleeve 9, pressing the copper sleeve 9 into the through hole at one end of the connecting rod body 8. This completes the press-fitting process. During the process, the angle between the connecting rod body 8 and the support platform is limited by two clamping blocks 29 on the outer surface of the U-shaped block 24, preventing the end of the connecting rod body 8 away from the positioning block 7 from tilting left or right. After pressing, the hydraulic rod 4 retracts, causing the pressure block 5 to rise, and then the connecting rod body 8 can be removed. The coil spring 23 at one end of the rotating shaft 22 returns to its original state, causing the U-shaped block 24 to rotate back to its original angle. By setting the positioning device 2, installing a rotatable U-shaped block 24 on the outer surface of the support platform, and limiting the angle of the U-shaped block 24 by the coil spring 23 at one end of the rotating shaft 22, the middle part of the outer surface of the connecting rod body 8 is positioned between the two clamping blocks 29. The distance between the two clamping blocks 29 is adjusted by rotating the threaded cylinder 26 to adapt to the size of the outer surface of the connecting rod body 8.During the pressing process, the angle between the connecting rod body 8 and the support platform is limited by two clamping blocks 29 on the outer surface of the U-shaped block 24, preventing the end of the connecting rod body 8 away from the positioning block 7 from tilting left or right, thus improving the stability and practicality of the pressing device during use.

[0024] Reference Figure 2-6 As shown in this embodiment: an auxiliary piece 210 is fixedly connected to the top of the pressure block 5. The top edge of the auxiliary piece 210 is arc-shaped. When pressing a batch of connecting rods 8 and copper sleeves 9, after the positions of the two clamping blocks 29 are adjusted, when placing the subsequent connecting rods 8, the bottom surface of the connecting rod 8 contacts the arc-shaped auxiliary piece 210 at the top of the two clamping blocks 29, which makes it easier to enter between the two clamping blocks 29. Rubber blocks 211 are fixedly connected to both sides of the outer surface of the U-shaped block 24. The top edge of the rubber block 211 is arc-shaped. By setting the rubber block 211, when the U-shaped block 24 contacts the outer surface of the connecting rod 8 at an inclined angle, the arc-shaped edge of the rubber block 211 is less likely to cause wear to the outer surface of the connecting rod 8.

[0025] Reference Figure 2-6 As shown in this embodiment: a rubber limiting block 212 is fixedly connected to one side of the ring 25. The outer surface of the threaded cylinder 26 slides on one side of the limiting block 212. When the threaded cylinder 26 is rotated to move the position of the two screws 27, it will squeeze the rubber limiting block 212 on the outer surface of the two rings 25. When the threaded cylinder 26 is not pushed to rotate, the position of the threaded cylinder 26 can be restricted by the rubber limiting block 212 pressing against the outer surface of the threaded cylinder 26, so as to avoid the threaded cylinder 26 from rotating accidentally. Several protrusions 213 are fixedly connected to the outer surface of the threaded cylinder 26. The protrusions 213 are circumferentially distributed on the outer surface of the threaded cylinder 26. By pressing against the protrusions 213 on the outer surface of the threaded cylinder 26, it is easier and more convenient to push the threaded cylinder 26 to rotate.

[0026] Reference Figure 2-5As shown in this embodiment: the auxiliary device 3 includes a slide rod 32, and a circular groove 31 is opened inside a bearing block 6. The slide rod 32 slides on the inner wall of the circular groove 31. A spring 33 is provided at the bottom end of the slide rod 32. The upper and lower ends of the spring 33 are fixedly connected to the bottom end of the slide rod 32 and the bottom end of the inner wall of the circular groove 31, respectively. The bottom end of the positioning block 7 is fixedly connected to the top end of the slide rod 32. During the pressing process of fitting the connecting rod body 8 and the copper sleeve body 9 onto the outer surface of the positioning block 7, when the pressure block 5 moves downward and pushes the copper sleeve body 9 into the through hole at one end of the connecting rod body 8, it will push the positioning block 7 and the slide rod 32 to control the slide rod 32 to slide downward on the inner wall of the circular groove 31 and compress the spring 33, so that the positioning block 7 will not obstruct the movement of the copper sleeve body 9 and the pressure block 5 and can better... The relative positions of the copper sleeve 9 and the connecting rod 8 are restricted. After the pressing is completed, when the pressing block 5 moves away from the outer surface of the connecting rod 8, the compressed spring 33 returns to its original shape and pushes the slide rod 32 and the positioning block 7 to move upward back to their original positions. The bottom of the inner wall of the circular groove 31 is fixedly connected to the positioning rod 34. The slide rod 32 slides on the outer surface of the positioning rod 34. The spring 33 is sleeved on the outside of the positioning rod 34. When the slide rod 32 is squeezed and moves downward, causing the spring 33 to deform, it will slide on the outside of the positioning rod 34. The spring 33 will move on the outside of the positioning rod 34. The positioning rod 34 can further restrict the position of the slide rod 32 inside the circular groove 31 and reinforce the internal shape of the spring 33 to prevent the spring 33 from twisting laterally and affecting normal use.

[0027] Working principle: When pressing the connecting rod body 8 and the copper sleeve body 9 using the pressing device, the end of the connecting rod body 8 that needs to be pressed with the copper sleeve body 9 is placed on the outer surface of the bearing block 6 with the positioning block 7 and fitted onto the outer surface of the positioning block 7. The other end rests on the outer surface of another bearing block 6. Then, the copper sleeve body 9 is placed inside the through hole of the connecting rod body 8 and fitted onto the outside of the positioning block 7. When the connecting rod body 8 is inserted, the outer surface of the connecting rod body 8 will contact the top of the U-shaped block 24. If the middle part of the outer surface of the connecting rod body 8 protrudes below the top surface of the two bearing platforms, it will push the U-shaped block. 24 controls the U-shaped block 24 to rotate via the rotating shaft 22. The coil spring 23 at one end of the rotating shaft 22 will drive the rotating shaft 22 and the U-shaped block 24 to rotate upward, so that the U-shaped block 24 can always be in contact with the outer surface of the connecting rod body 8. At this time, the middle part of the outer surface of the connecting rod body 8 will be between the two ends of the U-shaped block 24. Rotating the threaded cylinder 26 on the outer surface of the U-shaped block 24 controls the two screws 27 to move in the same direction on the inner wall of the threaded cylinder 26, so that the two screws 27 drive the clamping blocks 29 to move on the outer surface of the U-shaped block 24 via the support rod 28, so that the two clamping blocks 29 move closer to each other. One side contacts both sides of the outer surface of the connecting rod body 8. Then, the hydraulic rod 4 is controlled by the control button on the outer surface of the machine body 1. The hydraulic rod 4 extends and pushes the pressure block 5 downward. The pressure block 5 presses the top of the copper sleeve 9 and presses the copper sleeve 9 into the through hole at one end of the connecting rod body 8. When the pressure block 5 moves downward and pushes the copper sleeve 9 into the through hole at one end of the connecting rod body 8, it pushes the positioning block 7 and the slide rod 32. It controls the slide rod 32 to slide downward on the inner wall of the circular groove 31 and compress the spring 33, so that the positioning block 7 will not obstruct the movement of the copper sleeve 9 and the pressure block 5. To better restrict the relative positions of the copper sleeve 9 and the connecting rod 8, the angle between the connecting rod 8 and the support platform is restricted by the two clamping blocks 29 on the outer surface of the U-shaped block 24 during the pressing process, so as to prevent the end of the connecting rod 8 away from the positioning block 7 from tilting to the left or right. After the pressing is completed, the hydraulic rod 4 retracts and drives the pressure block 5 to rise, and then the connecting rod 8 can be taken out. The coil spring 23 at one end of the rotating shaft 22 returns to its original state and drives the U-shaped block 24 to rotate back to the original angle. The compressed spring 33 returns to its original state and pushes the slide rod 32 and the positioning block 7 to move upward back to their original positions.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A press-fitting device for connecting rod copper bush processing, comprising a machine body (1), characterized in that: A hydraulic rod (4) is provided on one side of the top of the machine body (1). A pressure block (5) is installed on the output rod of the hydraulic rod (4). Two bearing blocks (6) are fixedly connected to the outer surface of the machine body (1). A positioning block (7) is installed inside one of the bearing blocks (6) with the help of an auxiliary device (3). A connecting rod body (8) and a copper sleeve body (9) are provided on the outer surface of the bearing block (6). One end of the connecting rod body (8) and the copper sleeve body (9) are fitted on the outer surface of the positioning block (7). A positioning device (2) is provided on the outer surface of one of the bearing blocks (6) to further restrict the position of the connecting rod body (8) on the outer surface of the bearing block (6).

2. The press-fitting device for machining a connecting rod brass bushing according to claim 1, characterized in that: The positioning device (2) includes a support rod (21). One end of the support rod (21) is fixedly connected to the outer surface of the bearing block (6) without a positioning block (7). A rotating shaft (22) is rotatably connected to the outer surface of the support rod (21). A coil spring (23) is provided at one end of the rotating shaft (22). The two ends of the coil spring (23) are fixedly connected to one side of the rotating shaft (22) and one side of the support rod (21), respectively. A U-shaped block is fixedly connected to the outer surface of the rotating shaft (22). (24) Two rings (25) are fixedly connected to one side of the U-shaped block (24). A threaded cylinder (26) is rotatably connected to the inner wall of the ring (25). Support rods (28) are slidably connected to both ends of the U-shaped block (24). Clamping blocks (29) and screws (27) are fixedly connected to both ends of the support rods (28). The outer surface of the screws (27) is threaded to the inner wall of the threaded cylinder (26). The threads on the outer surfaces of the two screws (27) are opposite in direction.

3. The press fitting device for machining a connecting rod brass bushing according to claim 2, characterized in that: An auxiliary piece (210) is fixedly connected to the top of the pressure block (5), and the top edge of the auxiliary piece (210) is arc-shaped.

4. The press fitting device for machining a connecting rod brass bushing according to claim 3, characterized in that: Rubber blocks (211) are fixedly connected to both sides of the outer surface of the U-shaped block (24), and the top edge of the rubber block (211) is arc-shaped.

5. The press fitting device for machining a connecting rod brass bushing according to claim 2, characterized in that: A rubber limiting block (212) is fixedly connected to one side of the ring (25), and the outer surface of the threaded cylinder (26) slides on one side of the limiting block (212).

6. The press-fitting device for processing connecting rod copper sleeves according to claim 5, characterized in that: The outer surface of the threaded cylinder (26) is fixedly connected with several protrusions (213), which are distributed circumferentially on the outer surface of the threaded cylinder (26).

7. The press fitting device for machining a connecting rod brass bushing according to claim 1, characterized in that: The auxiliary device (3) includes a slide rod (32), and a circular groove (31) is provided inside the bearing block (6). The slide rod (32) slides on the inner wall of the circular groove (31). A spring (33) is provided at the bottom end of the slide rod (32). The upper and lower ends of the spring (33) are fixedly connected to the bottom end of the slide rod (32) and the bottom end of the inner wall of the circular groove (31), respectively. The bottom end of the positioning block (7) is fixedly connected to the top end of the slide rod (32).

8. The press fitting device for machining a connecting rod brass bushing according to claim 7, characterized in that: A positioning rod (34) is fixedly connected to the bottom of the inner wall of the circular groove (31), a sliding rod (32) slides on the outer surface of the positioning rod (34), and a spring (33) is sleeved on the outside of the positioning rod (34).

Images