Claw chain swinging equipment

Abstract

The utility model discloses claw chain swinging equipment, which relates to the technical field of claw chain swinging and comprises a workbench, a mounting frame, a hydraulic rod, a first positive and negative screw rod, a sliding block, a fixing frame, a clamping block and other core components. The clamping blocks with the V-shaped groove blocks are symmetrically arranged at the bottom of the fixing frame, the clamping blocks are driven by the adjusting assembly to synchronously move in the opposite direction, the contact area is increased through the wedge-shaped structures of the V-shaped grooves and the anti-skid lines, and the clamping force is evenly dispersed. The first positive and negative screw rod controls the sliding block to move so as to adapt to claw chains of different sizes, the limiting assembly locks the V-shaped groove block through the limiting head and the pin shaft, and displacement under high-frequency vibration is restrained. The hydraulic rod accurately applies force to the protruding part of the claw chain for straightening, auxiliary supporting is provided by combining the sliding rod and the auxiliary block, and it is ensured that the straightening process is stable. Through the multi-stage clamping adjustment and anti-vibration locking design, the clamping stability and the straightening precision are improved.

Description

Technical Field

[0001] This utility model relates to the field of claw chain swing technology, specifically a claw chain swing device. Background Technology

[0002] During the machining of mechanical claw chains, local protrusions can easily be caused by material deformation or external forces, and their linear accuracy needs to be restored through a swing-shaped straightening process.

[0003] Existing straightening techniques generally employ two-end planar clamps to fix the claw chain and use hydraulic rods to apply impact correction to the protruding parts. However, this approach has significant technical drawbacks: the planar clamps only hold the claw chain from the outside, resulting in a limited contact area and uneven clamping force distribution. Under the high-frequency vibration of hydraulic impact, the claw chain is prone to vertical displacement along the clamping surface, leading to inaccurate positioning reference. To address this, we propose a claw chain swing-shaped device. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by proposing a claw chain swing device.

[0005] In order to solve the above-mentioned technical problems, the present invention solves the problem that the claw chain is prone to displacement in the vertical direction due to vibration after clamping in the prior art through the following technical solution.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A claw chain straightening device includes: a worktable with a mounting frame fixedly mounted on it; a hydraulic rod, driven by an external component and positioned above the worktable, for straightening the claw chain; a first positive and negative lead screw, rotatably mounted within the mounting frame, with a rotating wheel fixedly mounted in the middle of the first positive and negative lead screw, and symmetrically distributed sliders threaded onto the first positive and negative lead screw; a fixed frame, fixedly mounted on the outside of the sliders, with symmetrical clamping blocks at the bottom of the fixed frame, and V-shaped grooves on the opposite faces of the two clamping blocks for fixing the outside of the claw chain; an adjusting component, located within the fixed frame, for driving the two clamping blocks to move relative to each other; and a limiting component, located on the outside of the clamping blocks, for connecting and fixing the V-shaped grooves and the clamping blocks.

[0008] Preferably, the adjustment assembly includes a second positive and negative lead screw and a handle. The second positive and negative lead screw is rotatably disposed within the fixed frame. Two clamping blocks are symmetrically disposed on both sides of the second positive and negative lead screw and are threadedly connected to the second positive and negative lead screw. The handle is disposed on the outside of the fixed frame and is coaxially fixedly connected to the second positive and negative lead screw.

[0009] Preferably, the limiting component includes a limiting head, a clamping hole in the middle of the clamping block, the clamping hole engaging with the back of the V-shaped groove block; a connecting groove is provided between the clamping block and the V-shaped groove block, the limiting head being fitted into the connecting groove to limit the V-shaped groove block within the clamping hole.

[0010] Preferably, an auxiliary plate is fixedly provided on the outside of the connecting groove, a limiting hole is provided on the auxiliary plate, a through groove is provided on the outside of the limiting head, and a pin is slidably provided in the through groove to engage with the limiting hole.

[0011] Preferably, an annular plate is fixedly provided in the middle of the pin shaft, the annular plate slides with the inner wall of the through groove, and a compression spring is provided on the side of the annular plate away from the limiting hole, and the other end of the compression spring is fixed to the inner wall of the through groove.

[0012] Preferably, a baffle is fixedly provided at the end of the pin away from the limiting hole, and the size of the baffle is larger than the opening size of the through groove.

[0013] Preferably, the mounting bracket is a U-shaped frame structure, and the two ends of the first positive and negative lead screws are rotatably connected to the mounting bracket through bearings.

[0014] Preferably, the surface of the V-shaped groove block is provided with anti-slip texture.

[0015] Preferably, a self-lubricating bushing is provided at the threaded connection between the slider and the first positive and negative lead screw.

[0016] Preferably, a slide rod is fixedly mounted on the worktable by a bracket, and an auxiliary block is fixedly mounted on the end of the fixed frame away from the slide block. The slide rod passes through the through hole of the auxiliary block and slides with the auxiliary block to provide auxiliary support for the movement of the fixed frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention utilizes a V-groove block and clamping block design to increase the contact area with the outer side of the claw chain, resulting in a more uniform distribution of clamping force. Compared to traditional planar clamps, the wedge-shaped structure of the V-groove better conforms to the claw chain surface. Combined with the anti-slip texture design, it significantly reduces the risk of vertical displacement of the claw chain under hydraulic impact, ensuring the stability of the positioning reference.

[0019] The adjustment assembly, through the engagement of the second positive and negative lead screws with the handle, drives the two clamping blocks to move synchronously and symmetrically, ensuring a uniform distribution of clamping force along the axial direction of the claw chain. Combined with the function of the first positive and negative lead screws driving the slider to adjust the spacing of the fixing frame, it can adapt to claw chains of different sizes, avoiding secondary deformation caused by local overpressure or uneven clamping, thereby improving the accuracy and consistency of the straightening process.

[0020] The limiting assembly, through the cooperation of the limiting head, pin, and compression spring, firmly locks the V-groove block into the clamping block's recess, preventing loosening or displacement under high-frequency vibration. Simultaneously, the sliding fit design between the auxiliary block and the slide rod provides additional support for the mounting frame, and combined with a self-lubricating bushing to reduce frictional resistance, ensures the equipment maintains stable operation during long-term high-frequency operation, extending its service life. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the fixing frame part of this utility model;

[0024] Figure 3 This is a schematic diagram of the clamping block structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the connection between the clamping block and the V-groove block of this utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the limiting head of this utility model;

[0027] Figure 6 This is a schematic diagram of the through groove part of this utility model.

[0028] Drawing number descriptions: 1. Workbench; 2. Mounting bracket; 3. Hydraulic rod; 4. First forward and reverse lead screw; 5. Rotary wheel; 6. Slider; 7. Fixing bracket; 8. Clamping block; 9. V-groove block; 10. Adjustment component; 11. Limiting component; 12. Second forward and reverse lead screw; 13. Handle; 14. Limiting head; 15. Embedded hole; 16. Connecting groove; 17. Auxiliary plate; 18. Limiting hole; 19. Through groove; 20. Pin shaft; 21. Annular plate; 22. Compression spring; 23. Baffle; 24. Self-lubricating bushing; 25. Slide rod; 26. Auxiliary block. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. Example

[0030] Please see Figures 1-6 A claw chain straightening device includes: a workbench 1, on which a mounting frame 2 is fixedly mounted; a hydraulic rod 3, mounted above the workbench 1 via an external drive component, for straightening the claw chain; a first positive and negative lead screw 4, rotatably mounted within the mounting frame 2, with a rotating wheel 5 fixedly mounted in the middle of the first positive and negative lead screw 4, and symmetrically distributed sliders 6 threadedly connected to the first positive and negative lead screw 4; the workbench 1 serves as the device foundation, and the first positive and negative lead screw 4 is fixed by the mounting frame 2; the rotating wheel 5 in the middle of the lead screw drives it to rotate in both directions, causing the symmetrically distributed sliders 6 to move along the lead screw axis, thereby adjusting the spacing of the fixing frame 7 to accommodate claw chains of different lengths;

[0031] The fixing frame 7 is fixedly installed on the outside of the slider 6. The bottom of the fixing frame 7 is symmetrically provided with clamping blocks 8. The opposite surfaces of the two clamping blocks 8 are provided with V-shaped groove blocks 9. The V-shaped groove blocks 9 are used to fix the outside of the claw chain. Its wedge-shaped structure increases the contact area. Combined with the anti-slip texture design, it ensures the stability of the clamping.

[0032] The adjustment component 10 is located inside the fixed frame 7 and precisely controls the clamping force by driving the relative movement of the clamping block 8. The limiting component 11 is located outside the clamping block 8 and prevents the V-shaped groove block 9 from shifting under high-frequency vibration through a mechanical locking structure, so as to achieve stable alignment and precise positioning as a whole.

[0033] The following describes some embodiments of this application in detail with reference to the accompanying drawings:

[0034] Please see Figures 1-6 This invention utilizes a structural design that combines a V-groove block 9 with a clamping block 8, increasing the contact area with the outer side of the claw chain and resulting in a more uniform distribution of clamping force. Compared to traditional planar clamps, the wedge-shaped structure of the V-groove better conforms to the claw chain surface. Combined with the anti-slip texture design, it significantly reduces the risk of vertical displacement of the claw chain under hydraulic impact, ensuring the stability of the positioning reference.

[0035] The adjustment assembly 10 includes a second forward and reverse lead screw 12 and a handle 13. The second forward and reverse lead screw 12 is rotatably mounted within the fixed frame 7. Two clamping blocks 8 are symmetrically arranged on both sides of the second forward and reverse lead screw 12 and are threadedly connected to it. The handle 13 is located outside the fixed frame 7 and is coaxially fixedly connected to the second forward and reverse lead screw 12. When the handle 13 drives the second forward and reverse lead screw 12 to rotate, the clamping blocks 8 on both sides move synchronously in opposite directions, ensuring that the clamping force is evenly distributed along the axial direction of the claw chain. This manual adjustment method not only simplifies the operation process but also avoids the accuracy errors that may be introduced by electric drive. The symmetrical motion design further prevents secondary deformation of the claw chain caused by uneven force application on one side, improving the consistency and reliability of the straightening process.

[0036] Furthermore, the limiting component 11 includes a limiting head 14, and a recessed hole 15 is formed in the middle of the clamping block 8, which mates with the back of the V-shaped groove block 9. A connecting groove 16 is provided between the clamping block 8 and the V-shaped groove block 9. The limiting head 14 is fitted into the connecting groove 16, limiting the V-shaped groove block 9 within the recessed hole 15. The recessed hole 15 in the middle of the clamping block 8 is tightly fitted with the back of the V-shaped groove block 9. The limiting head 14 fitted into the connecting groove 16 fixes the V-shaped groove block 9 within the recessed hole 15 through mechanical locking. This design forms a double locking under high-frequency hydraulic impact: the geometric constraint of the recessed hole 15 restricts the horizontal displacement of the V-shaped groove block 9, while the limiting head 14 further prevents vertical loosening through the rigid fitting of the connecting groove 16, ensuring the long-term stability of the clamping reference.

[0037] Furthermore, an auxiliary plate 17 is fixedly provided on the outside of the connecting groove 16. A limiting hole 18 is provided on the auxiliary plate 17, and a through groove 19 is provided on the outside of the limiting head 14. A pin 20, which slidably engages with the limiting hole 18, is provided within the through groove 19. The auxiliary plate 17 is fixed to the outside of the connecting groove 16, and its limiting hole 18 and the through groove 19 of the pin 20 are engaged through the sliding pin 20. When the limiting head 14 is inserted into the connecting groove 16, the pin 20 slides along the through groove 19 and embeds into the limiting hole 18, forming a lateral lock. This design not only simplifies the installation and disassembly process of the limiting head 14, but also disperses vibration energy through a multi-level locking mechanism, avoiding failure of a single structure due to fatigue.

[0038] Meanwhile, an annular plate 21 is fixedly provided in the middle of the pin 20. The annular plate 21 is slidably engaged with the inner wall of the through groove 19. A compression spring 22 is provided on the side of the annular plate 21 away from the limiting hole 18. The other end of the compression spring 22 is fixed to the inner wall of the through groove 19. The annular plate 21 is fixed in the middle of the pin 20 and slidably engaged with the inner wall of the through groove 19 to ensure that the pin 20 moves linearly without deviation. One end of the compression spring 22 abuts against the annular plate 21, and the other end is fixed to the inner wall of the through groove 19. It absorbs vibration impact through elastic deformation and provides continuous rebound force to the pin 20, preventing the limiting hole 18 and the pin 20 from accidentally disengaging due to vibration, and ensuring the long-term reliability of the limiting component 11.

[0039] At the same time, a baffle 23 is fixedly provided at the end of the pin 20 away from the limiting hole 18. The size of the baffle 23 is larger than the size of the slot of the through groove 19, so that force can be applied to the pin 20 to pull the pin 20 out of the limiting hole 18.

[0040] It is worth noting that the mounting frame 2 has a U-shaped frame structure. The two ends of the first positive and negative lead screw 4 are rotatably connected to the mounting frame 2 through bearings (not shown in the attached figure). The symmetrical design of the U-shaped frame disperses the radial load when the lead screw rotates, reducing bending deformation caused by uneven force on the lead screw. The introduction of bearings further reduces frictional resistance, ensuring smooth rotation of the lead screw, thereby improving the accuracy and response speed of the slider 6 position adjustment and adapting to the rapid switching requirements of different sized claw chains.

[0041] In this technical solution, the surface of the V-groove block 9 is provided with anti-slip texture. The staggered arrangement of the texture generates a multi-point interlocking effect during clamping, effectively suppressing the slight slippage of the claw chain under hydraulic impact. Combined with the wedge-shaped clamping structure of the V-groove, the anti-slip texture transforms local pressure into a uniformly distributed clamping force, significantly reducing the risk of wear on the claw chain surface caused by concentrated stress.

[0042] In this technical solution, a self-lubricating bushing 24 is provided at the threaded connection between the slider 6 and the first positive and negative lead screw 4. This bushing utilizes its built-in lubricating material, such as graphite or polytetrafluoroethylene, to continuously release lubricant, reducing the coefficient of friction between the threaded pairs. This design avoids the drying or contamination problems of traditional lubricating greases during long-term high-frequency reciprocating motion, ensuring smooth and unobstructed movement of the slider 6, while also reducing lead screw wear and extending the service life of the equipment.

[0043] In this technical solution, a slide rod 25 is fixedly mounted on the workbench 1 via a bracket. An auxiliary block 26 is fixedly mounted on the end of the fixed frame 7 away from the slider 6. The slide rod 25 passes through the through hole of the auxiliary block 26 and slides in cooperation with the auxiliary block 26, providing auxiliary support for the movement of the fixed frame 7. When the slider 6 drives the fixed frame 7 to move, the auxiliary block 26 slides along the slide rod 25, balancing the lateral load of the fixed frame 7 and preventing frame twisting caused by unilateral force. The rigid support of the slide rod 25, combined with the guiding function of the auxiliary block 26, further enhances the overall stability of the equipment in high-speed straightening operations, ensuring that the straightening accuracy is not affected by external disturbances.

[0044] The operating principle of the device is explained below:

[0045] First, by rotating the wheel 5 in the middle of the first positive and negative lead screw 4, the sliders 6 on both sides are driven to move synchronously to the middle or the outside, and the fixing frame 7 is adjusted to a position that matches the length of the claw chain; the claw chain to be straightened is placed between the V-shaped grooves 9 of the fixing frames 7 on both sides, ensuring that the outer side of the claw chain is in contact with the anti-slip texture of the V-shaped grooves 9.

[0046] Then, the handle 13 of the rotating adjustment assembly 10 drives the second positive and negative lead screw 12 to rotate, causing the two clamping blocks 8 to move synchronously towards each other, clamping the claw chain through the V-groove block 9; the limiting head 14 is inserted into the communicating groove 16 of the clamping block 8, pushing the pin 20 to embed it into the limiting hole 18 of the auxiliary plate 17, and the compression spring 22 provides elastic pressure to ensure that the pin 20 is fixed, fixing the V-groove block 9 within the clamping block 8;

[0047] Then, the external drive component is activated to control the hydraulic rod 3 to move directly above the protruding part of the claw chain. The hydraulic rod 3 applies a high-frequency impact force to the protruding part. The anti-slip texture of the V-shaped groove block 9 and the locking structure of the limiting component 11 work together to resist the vibration and ensure that the claw chain does not shift during the clamping process.

[0048] If the position of the claw chain changes during the straightening process, the hydraulic rod 3 can be paused, and the position of the fixing frame 7 can be finely adjusted by the first positive and negative screw 4, or the claw chain can be re-clamped by the second positive and negative screw 12. The linear accuracy of the claw chain can be verified by measuring tools. If it does not meet the standard, the third step of the impact operation can be repeated until the requirements are met.

[0049] After processing, pull the pin 20 outward to compress the spring 22 so that it is disengaged from the limiting hole 18. Remove the limiting head 14, loosen the clamping block 8, rotate the handle 13 in the opposite direction to drive the clamping block 8 to separate, take the straightened claw chain out from the V-groove block 9, restore the fixing frame 7 to the initial spacing through the first positive and negative screw 4, turn off the power of the hydraulic rod 3, and complete the operation.

[0050] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. A claw chain swing-shaped device, comprising: A workbench (1) is provided with a mounting bracket (2). The hydraulic rod (3) is positioned above the worktable (1) via an external drive component and is used to straighten the claw chain; Its characteristic is that it further includes: The first positive and negative lead screw (4) is rotatably disposed in the mounting bracket (2). A rotating wheel (5) is fixedly provided in the middle of the first positive and negative lead screw (4). A symmetrically distributed slider (6) is threaded on the first positive and negative lead screw (4). A fixing frame (7) is fixedly installed on the outside of the slider (6). The bottom of the fixing frame (7) is symmetrically provided with clamping blocks (8). The opposite surfaces of the two clamping blocks (8) are provided with V-shaped groove blocks (9). The V-shaped groove blocks (9) are used to fix the outside of the claw chain. An adjustment component (10) is provided inside the fixed frame (7) for driving the two clamping blocks (8) to move relative to each other; A limiting component (11) is provided on the outside of the clamping block (8) for connecting and fixing the V-groove block (9) and the clamping block (8).

2. The claw chain swing-shaped device according to claim 1, characterized in that: The adjustment assembly (10) includes a second positive and negative lead screw (12) and a handle (13). The second positive and negative lead screw (12) is rotatably disposed in the fixed frame (7). Two clamps (8) are symmetrically disposed on both sides of the second positive and negative lead screw (12) and are threadedly connected to the second positive and negative lead screw (12). The handle (13) is disposed on the outside of the fixed frame (7) and is coaxially fixedly connected to the second positive and negative lead screw (12).

3. The claw chain swing-shaped device according to claim 2, characterized in that: The limiting component (11) includes a limiting head (14), and a recessed hole (15) is opened in the middle of the clamping block (8). The recessed hole (15) cooperates with the back of the V-shaped groove block (9). A connecting groove (16) is provided between the clamping block (8) and the V-shaped groove block (9). The limiting head (14) is fitted into the connecting groove (16) to limit the V-shaped groove block (9) in the recessed hole (15).

4. The claw chain swing-shaped device according to claim 3, characterized in that: An auxiliary plate (17) is fixedly provided on the outside of the connecting groove (16). A limiting hole (18) is opened on the auxiliary plate (17). A through groove (19) is provided on the outside of the limiting head (14). A pin (20) that is engaged with the limiting hole (18) is slidably provided in the through groove (19).

5. The claw chain swing-shaped device according to claim 4, characterized in that: An annular plate (21) is fixedly provided in the middle of the pin (20). The annular plate (21) slides with the inner wall of the through groove (19). A compression spring (22) is provided on the side of the annular plate (21) away from the limiting hole (18). The other end of the compression spring (22) is fixed to the inner wall of the through groove (19).

6. The claw chain swing-shaped device according to claim 5, characterized in that: A baffle (23) is fixedly provided at one end of the pin (20) away from the limiting hole (18), and the size of the baffle (23) is larger than the opening size of the through groove (19).

7. The claw chain swing-shaped device according to claim 1, characterized in that: The mounting bracket (2) is a U-shaped frame structure, and the two ends of the first positive and negative lead screw (4) are rotatably connected to the mounting bracket (2) through bearings.

8. The claw chain swing-shaped device according to claim 1, characterized in that: The surface of the V-shaped groove (9) is provided with anti-slip texture.

9. The claw chain swing-shaped device according to claim 1, characterized in that: The slider (6) is provided with a self-lubricating bushing (24) at the threaded connection between it and the first positive and negative lead screw (4).

10. The claw chain swing-shaped device according to claim 1, characterized in that: A slide rod (25) is fixedly mounted on the workbench (1) by a bracket. An auxiliary block (26) is fixedly mounted on one end of the fixed frame (7) away from the slider (6). The slide rod (25) passes through the through hole of the auxiliary block (26) and slides with the auxiliary block (26), providing auxiliary support for the movement of the fixed frame (7).

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