A special machine tool for processing rubber trunking components

Abstract

This utility model discloses a special machine tool for processing components of rubber trunking devices, including a lathe. A support device is provided on the guide rail of the lathe. The support device includes a base, which slides relative to and engages with the guide rail of the lathe. A clamping mechanism is provided on the base. A lower chuck is provided on the base, and several rolling mechanisms are provided on the lower chuck. An upper chuck is provided above the lower chuck, and the upper chuck is hinged to the lower chuck. A first roller is provided on the upper chuck, and a first sliding rod is provided between the first roller and the upper chuck. A first spring is provided between the first sliding rod and the upper chuck, and the first sliding rod slides relative to the upper chuck. This utility model solves the problem in the prior art that when processing long-shaft workpieces, it is inconvenient to move and clamp the support structure, and workpiece displacement easily occurs during the movement process.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, and in particular to a special machine tool for processing rubber trunking device components. Background Technology

[0002] The CWA6185×5000mm horizontal lathe is commonly used for machining long shaft workpieces. During the machining of long shafts, the workpiece is prone to vibration due to its length. Therefore, existing technologies often add support structures to the machine tool guideways. For example, Chinese Patent Application No. 2022204233551 discloses a tool holder for machining slender shafts on a lathe, and Chinese Patent Application No. 2024210952293 discloses a protective device for machining long shaft-shaped parts on a lathe. Both of these existing technologies can increase the number of support points for long shaft workpieces. However, the existing technologies suffer from the following drawbacks: fixing the support structure is cumbersome and inconvenient to adjust the fulcrum position during machining. Furthermore, these are all single-point supports, which are prone to oscillation along the axial direction during movement, requiring re-measurement and recalibration of the workpiece. Utility Model Content

[0003] The purpose of this invention is to solve the problem in the prior art that when processing long shaft workpieces, it is inconvenient to move and clamp the support structure, and the workpiece is prone to displacement during the movement process.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A special machine tool for processing components of a rubber trunking device includes a lathe. A support device is provided on the guide rail of the lathe. The support device includes a base, which slides relative to the guide rail of the lathe and engages with the guide rail. A clamping mechanism is provided on the base. A lower chuck is provided on the base. A plurality of rolling mechanisms are provided on the lower chuck. An upper chuck is provided above the lower chuck and is hinged to the lower chuck. A first roller is provided on the upper chuck. A first sliding rod is provided between the first roller and the upper chuck. A first spring is provided between the first sliding rod and the upper chuck. The first sliding rod slides relative to the upper chuck.

[0006] Preferably, the clamping mechanism includes a pressure rod, which is slidably connected to the base. A wedge block is provided above the pressure rod, and a second spring is provided between the bottom of the wedge block and the base. A push wheel is provided on the wedge block, and a push rod is provided between the push wheel and the base. The push rod is slidably connected to the base. A handle is provided at one end of the push rod, and a driving assembly is provided between the handle and the push rod. The handle is hinged to the base, and a clamping device is provided between the handle and the base. A pressure block is provided below the pressure rod.

[0007] Preferably, the drive assembly includes a first connector and a second connector, the first connector being fixedly connected to the handle in an "L" shape, the first connector being hinged to the second connector, and the second connector being hinged to the push rod.

[0008] Preferably, the clamping device includes a limiting groove located on the base, and the limiting groove engages with the first connecting member.

[0009] Preferably, the drive assembly further includes a cam, which is fixedly connected to the handle and is tangent to the end face of the push rod.

[0010] Preferably, the clamping device further includes a clamp, which has symmetrically arranged elastic clips, and the elastic clips have rubber blocks.

[0011] Preferably, the rolling mechanism includes a second roller, a second sliding rod is provided between the second roller and the lower retainer, the second sliding rod slides relative to the lower retainer, the second roller is sleeved on the second sliding rod, and a third spring is provided between the second sliding rod and the lower retainer.

[0012] Preferably, a mounting seat is provided between the lower card seat and the base. The mounting seat is located on the base and is hinged to the lower card seat. A locking bolt is provided between the mounting seat and the lower card seat, and the locking bolt passes through the mounting seat and the lower card seat. The lower card seat has an arc structure, and a connecting shaft is provided between the lower card seats for connecting them.

[0013] The beneficial effects proposed by this utility model are as follows:

[0014] When a long-shaft workpiece needs to be machined, the worker places the workpiece on the lower chuck. The rolling mechanism supports the workpiece. The worker then moves the base, bringing the workpiece close to the lathe's disc clamp and clamping it. After the lathe clamps the workpiece, the upper chuck is flipped downwards until the first roller contacts the workpiece surface. The upper and lower chucks are then locked together, achieving the support and clamping of the workpiece by the support device. At this point, the workpiece contacts the first roller, compressing the first spring. This allows the first sliding rod to adapt to workpieces of different sizes or uneven workpiece surfaces under the action of the first spring. Finally, the upper and lower chucks are locked and fixed. In this process, the lower chuck is equipped with at least two rolling mechanisms, each abutting against the workpiece. This provides two-point support for the workpiece, offering good stability for supporting long shafts without the need for multiple support devices. Meanwhile, when the support device needs to be moved, it is only necessary to contact the clamping mechanism, and then move the base on the guide rail of the lathe. During the movement, the roller mechanism always abuts against the workpiece, which reduces the workpiece from being in a cantilever state when the support device moves, thus preventing workpiece damage, maintaining the accuracy of the workpiece clamping process, and reducing the risk of long axis runout in the cantilever state. Attached Figure Description

[0015] Figure 1 A perspective view of a special machine for processing rubber trunking device components proposed in this utility model;

[0016] Figure 2 This is a perspective view of a support device for a special machine for processing rubber trunking components according to the present invention.

[0017] Figure 3 This is a side sectional view of the clamping mechanism of a special machine for processing rubber trunking device components according to the present invention.

[0018] Figure 4 This is a partial enlarged view A in the perspective view of the support device of the special machine for processing rubber trunking device components proposed in this utility model;

[0019] Figure 5 This is a perspective view of the drive assembly of a special machine for processing rubber trunking device components according to the present invention.

[0020] Figure 6 A partial enlarged view B is shown in the perspective view of the drive assembly of a special machine for processing rubber trunking device components proposed in this utility model.

[0021] Figure 7A partially enlarged perspective view C shows a special machine for processing components of a rubber trunking device according to this utility model.

[0022] Figure 8 This is a perspective view of a second embodiment of a special machine for processing rubber trunking device components proposed in this utility model;

[0023] Figure 9 This is a partial enlarged view D in the perspective view of Embodiment 2 of the special machine for processing rubber trunking device components proposed in this utility model.

[0024] In the diagram: 1. Lathe; 2. Base; 3. Lower chuck; 4. Upper chuck; 5. First sliding rod; 6. First roller; 7. First spring; 8. Pressure rod; 9. Wedge block; 10. Second spring; 11. Push roller; 12. Push rod; 13. Handle; 14. Pressure plate; 15. First connecting piece; 16. Second connecting piece; 17. Limiting groove; 18. Second roller; 19. Second sliding rod; 20. Mounting seat; 21. Locking bolt; 22. Connecting shaft; 23. Cam; 24. Limiting clamp; 25. Rubber block; 26. Third spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Reference Figures 1 to 7A special machine tool for processing components of a rubber trunking device includes a lathe 1. A support device is provided on the guide rail of the lathe 1. The support device includes a base 2, which slides relative to and engages with the guide rail of the lathe 1. A clamping mechanism is provided on the base 2. A lower chuck 3 is provided on the base 2, and several rolling mechanisms are provided on the lower chuck 3. An upper chuck 4 is provided above the lower chuck 3 and is hinged to the lower chuck 3. A first roller 6 is provided on the upper chuck 4. A first sliding rod 5 is provided between the first roller 6 and the upper chuck 4. A first spring 7 is provided between the first sliding rod 5 and the upper chuck 4. The first sliding rod 5 slides relative to the upper chuck 4. Specifically, the lathe 1 is a CWA6185×5000mm horizontal lathe. When a long-shaft workpiece needs to be processed, the worker places the workpiece on the lower chuck 3. At this time, the rolling mechanism supports the workpiece. Then, the worker moves the base 2 so that the workpiece is close to the disc clamp of the lathe 1 and clamps it. After the lathe 1 clamps the workpiece, the upper chuck 4 is flipped downwards until the first roller 6 contacts the surface of the workpiece. Then, the upper chuck 4 and the lower chuck 3 are locked together, realizing the support device's support and clamping of the workpiece. At this time, after the workpiece contacts the first roller 6, the first spring 7 is compressed, so that the first sliding rod 5 can adapt to workpieces of different sizes or uneven workpiece surfaces under the action of the first spring 7. Finally, the upper chuck 4 and the lower chuck 3 are locked and fixed. In the above process, the lower chuck 3 is provided with no less than two rolling mechanisms, and each rolling mechanism abuts against the workpiece, so that the support device provides two-point support for the workpiece, providing good stability for supporting long shafts without the need for multiple support devices. Meanwhile, when the support device needs to be moved, it is only necessary to contact the clamping mechanism, and then move the base 2 on the guide rail of the lathe 1. During the movement, the roller mechanism is always in contact with the workpiece, which reduces the workpiece from being in a cantilever state when the support device moves, thus preventing workpiece damage, maintaining the accuracy of the workpiece clamping process, and reducing the risk of long axis runout in the cantilever state.

[0028] Specifically, the clamping mechanism includes a pressure rod 8, which is slidably connected to the base 2. A wedge block 9 is provided above the pressure rod 8. A second spring 10 is provided between the bottom of the wedge block 9 and the base 2. A push wheel 11 is provided on the wedge block 9. A push rod 12 is provided between the push wheel 11 and the base 2. The push rod 12 is slidably connected to the base 2. A handle 13 is provided at one end of the push rod 12. A driving assembly is provided between the handle 13 and the push rod 12. The handle 13 is hinged to the base 2. A clamping device is provided between the handle 13 and the base 2. A pressure block 14 is provided below the pressure rod 8. The operator applies a pushing force to cause the handle 13 to flip upward. At this time, the handle 13 drives the drive assembly to push the push rod 12 towards the wedge block 9 until the push wheel 11 abuts against the wedge block 9. As the push rod 12 continues to extend, it drives the wedge block 9 to move downward. During this process, the wedge block 9 and the base 2 compress the second spring 10, causing the second spring 10 to generate and store elastic force. Simultaneously, as the wedge block 9 moves downward, the pressure block 14 gradually contacts the guide rail of the lathe 1 through the connection of the pressure rod 8, until the pressure block 14 and the base 2 clamp the guide rail of the lathe 1. Finally, the handle 13 is clamped with the clamping device, and the clamping device fixes and limits the handle 13, thereby fixing the support device on the lathe 1. Conversely, to release the clamping mechanism's restriction on the support device, the handle 13 needs to be rotated downwards, simultaneously releasing the handle 13 from the clamping device. During this process, the push rod 12 retracts, releasing the pushing force applied to the wedge block 9 by the push wheel 11. Subsequently, the second spring 10 releases its stored elastic force, driving the wedge block 9 to move upwards, and through the pressure rod 8, driving the pressure block 14 to move upwards, thereby releasing the clamping mechanism's restriction on the support device.

[0029] Specifically, the drive assembly includes a first connector 15 and a second connector 16. The first connector 15 is fixedly connected to the handle 13 in an "L" shape. The first connector 15 and the second connector 16 are hinged together, and the second connector 16 is hinged to the push rod 12. When the handle 13 is flipped upward, the first connector 15 flips downward, pushing the push rod 12 towards the wedge block 9 via the second connector 16. Conversely, when the handle 13 is flipped downward, the first connector 15 flips upward, pulling the second connector 16 and driving the push rod 12 to retract. This achieves the extension and retraction of the push rod 12 by flipping the handle 13.

[0030] Specifically, the clamping device includes a limiting groove 17 located on the base 2, which engages with the first connecting member 15. When the handle 13 is flipped upward, the first connecting member 15 is flipped downward until the handle 13 is perpendicular to the base 290 degrees. At this point, the first connecting member 15 falls into the limiting groove 17, thus clamping the first connecting member 15 and fixing it in place, thereby locking the clamping mechanism through the clamping device.

[0031] Specifically, the rolling mechanism includes a second roller 18, a second sliding rod 19 between the second roller 18 and the lower chuck 3, and the second sliding rod 19 sliding relative to the lower chuck 3. The second roller 18 is sleeved on the second sliding rod 19, and a third spring 26 is provided between the second sliding rod 19 and the lower chuck 3. The second roller 18 supports the workpiece. When the spindle of the lathe 1 rotates, it drives the workpiece to rotate through the chuck of the lathe 1. As the workpiece rotates, the second roller 18 rotates with it. The second roller 18 helps reduce wear on the workpiece support during workpiece rotation processing. Simultaneously, when the second roller 18 contacts the workpiece, the workpiece's own weight is applied to the second roller 18. The second roller 18 drives the second sliding rod 19 to compress the third spring 26, causing the third spring 26 to store elasticity between the second sliding rod 19 and the lower chuck 3. This allows the rolling mechanism to adapt to workpieces of different sizes or uneven workpiece surfaces.

[0032] Specifically, a mounting base 20 is provided between the lower clamping seat 3 and the base 2. The mounting base 20 is located on the base 2 and is hinged to the lower clamping seat 3. A locking bolt 21 is provided between the mounting base 20 and the lower clamping seat 3, and the locking bolt 21 passes through the mounting base 20 and the lower clamping seat 3. The lower clamping seat 3 has an arc structure, and a connecting shaft 22 is provided between the lower clamping seats 3 to connect them. When the workpiece is placed on the lower clamping seat 3 and supported by the second roller 18, the surface of the unprocessed workpiece has an oxide layer, causing its surface to be uneven. When the workpiece rotates with the second roller 18, there is a risk of the workpiece jumping during rotation, resulting in poor processing accuracy. At this point, the angle between the lower retaining seat 3 and the mounting seat 20 can be adjusted so that the lower retaining seat 3 can be adjusted relative to the base 2. During this process, under the elastic force of the second spring 10, the sliding rod drives the second roller 18 to always be in contact with the workpiece, unaffected by the adjustment of the lower retaining seat 3. Simultaneously, the adjustment of the lower retaining seat 3 further adjusts the elastic force of the second spring 10; that is, the gap between the mounting seat 20 and the lower retaining seat 3 affects the elastic force of the second spring 10. After adjustment, the mounting seat 20 and the base 2 are locked together using the locking bolt 21. This reduces the risk of workpiece jumping during rotation caused by the uneven oxide layer on the workpiece surface when the two second rollers 18 support the workpiece.

[0033] Furthermore, the lower bracket 3 has an arc structure, and the two lower brackets 3 are connected by the connecting shaft 22, which facilitates the connection between the lower bracket 3 and the mounting base 20, while reducing the weight of the lower bracket 3 and making it easier for workers to adjust the angle between the lower bracket 3 and the mounting base 20.

[0034] Example 2

[0035] In the drive assembly described in Embodiment 1 above, the handle 13 drives the push rod 12 via the first connector 15 and the second connector 16. With this connection, the handle 13's rotation range is limited to a two-point displacement of 0-90°, making it impossible to lock the handle 13 at any arbitrary angle. Therefore, the clamping force is limited, and when the pressure block 14 wears down, the existing stroke cannot provide effective clamping force. Therefore, a further improvement is proposed.

[0036] like Figures 8 to 9As shown, specifically, the drive assembly also includes a cam 23, which is fixedly connected to the handle 13 and tangent to the end face of the push rod 12. The operator rotates the cam 23 via the handle 13. When the handle 13 flips upward, the protrusion of the cam 23 pushes the push rod 12 out, causing it to move towards the wedge block 9. This drives the pressure block 14 and the base 2 to clamp the guide rail of the lathe 1, thus fixing the base 2 onto the lathe 1. Conversely, when the handle 13 flips downward, the protrusion of the cam 23 does not contact the end face of the push rod 12 during this process. At this time, the push rod 12 does not move towards the wedge block 9, and the base 2 can slide on the guide rail of the machine tool.

[0037] Specifically, the clamping device further includes a limiting clamp 24, on which a rubber block 25 is provided. The limiting clamp 24 is fitted onto the handle 13, and the handle 13 moves relative to the limiting clamp 24. When the handle 13 moves on the limiting clamp 24, the rubber block 25 clamps the handle 13. At the same time, the surface of the rubber block 25 is provided with friction texture (not shown in the figure), which increases the frictional resistance and improves the limiting of the handle 13.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A special machine tool for processing components of a rubber trunking device, comprising a lathe, characterized in that: The lathe has a support device on its guide rail. The support device includes a base, which slides relative to the lathe's guide rail and engages with it. The base has a clamping mechanism and a lower chuck. The lower chuck has several rolling mechanisms. An upper chuck is located above the lower chuck and is hinged to the lower chuck. The upper chuck has a first roller, and a first sliding rod is located between the first roller and the upper chuck. A first spring is located between the first sliding rod and the upper chuck, and the first sliding rod slides relative to the upper chuck.

2. The special machine tool for processing rubber trunking device components according to claim 1, characterized in that: The clamping mechanism includes a pressure rod that is slidably connected to the base. A wedge block is provided above the pressure rod, and a second spring is provided between the bottom of the wedge block and the base. A push wheel is provided on the wedge block, and a push rod is provided between the push wheel and the base. The push rod is slidably connected to the base. A handle is provided at one end of the push rod, and a drive assembly is provided between the handle and the push rod. The handle is hinged to the base, and a clamping device is provided between the handle and the base. A pressure block is provided below the pressure rod.

3. The special machine tool for processing rubber trunking device components according to claim 2, characterized in that: The drive assembly includes a first connector and a second connector. The first connector is fixedly connected to the handle in an "L" shape. The first connector is hinged to the second connector, and the second connector is hinged to the push rod.

4. The special machine tool for processing rubber trunking device components according to claim 3, characterized in that: The clamping device includes a limiting groove located on the base, and the limiting groove is engaged with the first connecting member.

5. A special machine tool for processing rubber trunking device components according to claim 2, characterized in that: The drive assembly also includes a cam, which is fixedly connected to the handle and is tangent to the end face of the push rod.

6. The special machine tool for processing rubber trunking device components according to claim 5, characterized in that: The clamping device further includes a clamp, on which symmetrically arranged elastic clips are provided, and on which rubber blocks are provided.

7. A special machine tool for processing rubber trunking device components according to claim 1, characterized in that: The rolling mechanism includes a second roller, a second sliding rod is provided between the second roller and the lower bracket, the second sliding rod slides relative to the lower bracket, the second roller is sleeved on the second sliding rod, and a third spring is provided between the second sliding rod and the lower bracket.

8. A special machine tool for processing rubber trunking device components according to claim 7, characterized in that: A mounting base is also provided between the lower card seat and the base. The mounting base is located on the base and is hinged to the lower card seat. A locking bolt is provided between the mounting base and the lower card seat. The locking bolt passes through the mounting base and the lower card seat. The lower card seat has an arc structure. A connecting shaft is provided between the lower card seats. The connecting shaft is used to connect the lower card seats.

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