Filter welding machine clamping device
By using a multi-point guiding structure for the hydraulic cylinder and connecting rod, and a self-locking wedge locking mechanism, the problem of insufficient adaptability of traditional clamping devices is solved, achieving stable clamping and efficient production during the filter welding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGHE COUNTY ANNAITE AUTO PARTS CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-24
Smart Images

Figure CN224543622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter welding machine technology, and more specifically, it relates to a filter welding machine clamping device. Background Technology
[0002] In the modern automotive manufacturing and repair industry, filter welding is a critical production link, involving the processing of various models and specifications of filters. However, current filter welding equipment generally adopts a fixed clamping structure, which has obvious shortcomings in actual production. Traditional clamping devices are usually designed only for specific models of filters and lack universal adaptability to filters of different diameters and shapes. When the production line needs to change to different models of filters, it is often necessary to replace the entire clamping device or make cumbersome adjustments. This not only increases production costs but also significantly reduces production efficiency. Especially in small-batch, multi-variety customized production environments, frequent device changes and adjustments constantly interrupt the production process, and workers need to spend a lot of time on non-productive work, which cannot meet the requirements of modern manufacturing for production flexibility and efficiency.
[0003] Existing clamping devices generally suffer from excessive rigidity and insufficient adaptability. Excessive clamping force directly affects product quality, while insufficient or uneven clamping force may cause the filter to shift during welding, resulting in poor welds. Traditional clamping devices often use a single force point design, which cannot achieve uniform clamping of the filter's outer wall from all directions. During welding, the filter is prone to shaking or displacement. Utility Model Content
[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a filter welding machine clamping device to solve the technical problems mentioned in the background art.
[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a filter welding machine clamping device, comprising a base, a support plate fixedly mounted on the outer side of the base, a hydraulic cylinder fixedly mounted on the support plate, a guide groove provided on the base, multiple sets of guide blocks slidably connected to the guide groove, a support block fixedly mounted at the top of each set of guide blocks, a connecting rod hinged between each set of support blocks and the telescopic end of the hydraulic cylinder, an adapter mechanism provided on each set of support blocks, the adapter mechanism comprising a mounting sleeve and a sliding rod, the mounting sleeve being fixedly mounted on the support block and having an inner ring fixedly mounted on its inner side, multiple sets of sliding rods slidably mounted on the inner ring, a clamping block fixedly mounted at the top of each set of sliding rods, a base plate fixedly mounted at the bottom of each set of sliding rods, and a return spring connected between each set of base plates and the inner ring.
[0006] The present invention is further configured such that a limiting cylinder is fixedly provided at the top of the mounting sleeve, and multiple sets of the limiting cylinder are provided and slidably connected to multiple sets of sliding rods respectively. Guide plates are fixedly provided on the outer walls of the multiple sets of sliding rods, and the multiple sets of guide plates are slidably connected to the multiple sets of limiting cylinders respectively. The design of the limiting cylinder and the guide plate forms a stable guiding system, ensuring that the sliding rod maintains a good axial movement trajectory during movement, preventing the sliding rod from deviating or twisting. At the same time, the multi-point guiding structure enhances the rigidity and stability of the entire clamping system, and improves the clamping accuracy and reliability.
[0007] The present invention is further configured such that all of the clamping blocks are made of rubber. The rubber clamping blocks provide appropriate friction and elasticity, which can firmly grip the surface of the filter without causing scratches or deformation. At the same time, they have good buffering and adaptability, and can fit filters with different surface shapes. This effectively reduces stress concentration during the clamping process, protects the integrity of the filter surface, and ensures stable clamping.
[0008] The present invention is further configured such that an inclined groove is provided on the inner side of the mounting sleeve, and multiple sets of inclined grooves are provided, each of which is slidably connected to an abutment block. The cooperation design of the inclined groove and the abutment block forms a wedge-shaped locking mechanism. When the abutment block slides along the inclined groove, it can generate an inward radial force, so that the abutment block tightly fits the outer wall of the slide rod, forming a reliable fixing effect. At the same time, the inclined surface design makes the locking force automatically increase with the increase of pressure, realizing the self-locking function and improving the reliability and stability of the clamping system.
[0009] The present invention is further configured such that a pressure ring is provided on the inner side of the mounting sleeve, and a sliding sleeve is fixedly provided on the outer side of the pressure ring. A sliding groove is provided on the outer wall of the mounting sleeve. Multiple sets of sliding grooves are provided and are slidably connected to the sliding sleeve. The combination design of the pressure ring and the sliding sleeve forms a flexible force transmission mechanism. The external operating force is evenly transmitted to the pressure ring through the axial movement of the sliding sleeve in the sliding groove, and then acts on all the abutment blocks, ensuring the uniform distribution of clamping force. At the same time, this structural design allows the pressure ring to adapt to the needs of filters of different diameters, greatly improving the adaptability and ease of operation of the device.
[0010] This utility model is further configured such that an arc-shaped rod is fixedly provided on the outer side of the sliding sleeve, and multiple sets of the arc-shaped rod are provided. A rotating sleeve is rotatably provided on the outer wall of the mounting sleeve, and a limiting rod is fixedly provided on the outer side of the rotating sleeve. Multiple sets of the limiting rod are provided, and each of the limiting rods has a limiting hole on its outer wall. The ingenious cooperation between the arc-shaped rod and the limiting hole constitutes a quick locking mechanism. By simply rotating the rotating sleeve, the arc-shaped rod can be accurately inserted into the limiting hole to form a firm mechanical lock, preventing the sliding sleeve from moving accidentally during use. At the same time, the arc-shaped structure design enhances the locking strength, ensuring the stability and reliability of the entire clamping system during the welding process.
[0011] The present invention is further configured such that the inner sides of the multiple sets of abutment blocks are all arc-shaped and abut against the outer walls of the multiple sets of slide rods respectively. The arc-shaped abutment block design increases the contact area with the slide rod, realizes the uniform distribution of force, reduces local stress concentration, and at the same time, the arc-shaped contact surface can automatically adapt to the slight positional changes of the slide rod and maintain a stable abutment force. This design greatly improves the locking effect and service life, and ensures the stability and reliability during the clamping process.
[0012] The present invention is further configured such that a positioning sleeve is fixedly provided on the bottom surface of the rotating sleeve, and a sliding hole is provided on the inner side of the positioning sleeve. Multiple sets of the sliding hole are provided, and positioning blocks are slidably connected to each of the multiple sets of positioning blocks and the sliding hole. A push spring is provided between each set of positioning blocks and the sliding hole. A positioning groove is provided on the outer wall of the mounting sleeve, and multiple sets of positioning grooves are provided, each connected to a set of positioning blocks. The precise cooperation between the positioning sleeve and the positioning blocks forms an automatic positioning mechanism. The elastic action of the push spring causes the positioning blocks to automatically engage in the positioning groove, thereby achieving precise locking of the position of the rotating sleeve and preventing accidental rotation due to vibration or external force during use. At the same time, this structural design allows the unlocking operation to be completed by overcoming the push spring force, without the need for complicated tools, which greatly improves the operational safety and ease of use of the device.
[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a filter welding machine clamping device, which has the following advantages: 1. This filter welding machine clamping device adopts an innovative adaptability design, perfectly solving the problem of frequent changes in traditional equipment in multi-variety production environments. Through the synergistic action of hydraulic cylinders and connecting rods, precise displacement control of the support block can be achieved. Multiple sets of sliding rods, combined with the sliding structure of the inner ring, allow the clamping block to flexibly adjust its position to adapt to the outer walls of filters of different diameters and shapes. The rubber clamping block provides good friction and cushioning effect, preventing damage to the filter surface, while the design of the return spring ensures the uniform distribution of clamping force. The entire system can be quickly adjusted to adapt to different models of filters without replacing any parts, greatly improving the flexibility and efficiency of the production line. It is especially suitable for customized production environments with small batches and multiple varieties, effectively solving the problem of insufficient adaptability of traditional clamping devices.
[0014] 2. The locking system of this device is precisely and efficiently designed. The clever cooperation between the pressure ring and the abutment block forms a reliable locking mechanism. The design of the inclined groove and the arc-shaped abutment block ensures that the clamping force is evenly distributed on the surface of the filter. The combination of the sliding sleeve and the arc-shaped rod constitutes a simple yet robust limiting structure. The rotation operation of the rotating sleeve is achieved by the precise cooperation between the limiting rod and the limiting hole, which realizes the reliable fixation of the sliding sleeve. At the same time, the design of the positioning sleeve, the positioning block and the push spring forms an automatic positioning mechanism, ensuring that the rotating sleeve will not rotate unexpectedly during use. This multi-locking mechanism greatly improves the stability and reliability of clamping, effectively solving the problem of filter position displacement or shaking during welding in traditional clamping devices, and ensuring welding quality and precision.
[0015] 3. The unlocking and reset mechanism of this clamping device is equally simple and efficient. A series of precise and coordinated unlocking processes can be initiated simply by rotating the rotating sleeve. The positioning block automatically disengages from the positioning groove and compresses the push spring. The limit rod drives the arc rod to disengage from the limit hole and release the limit on the sliding sleeve. The pressure ring then releases the pressure on the abutment block. The reset spring automatically pulls the base plate and drives the sliding rod to slide along the inner ring and the limit cylinder, so that the clamping block quickly resets to the initial position. The entire unlocking process is simple to operate and can be completed in one go. No complicated tools or cumbersome steps are required, which greatly reduces the difficulty of operation and labor intensity for workers, and improves the efficiency of equipment use and production cycle. This user-friendly design enables the device to perform at its best in various industrial environments and meets the comprehensive requirements of modern filter manufacturing industry for precise, stable and efficient production. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a filter welding machine clamping device according to the present invention; Figure 2 This is a schematic diagram of the structure of the support block and the adapter mechanism in this utility model; Figure 3 This is a cross-sectional view of the adapter mechanism in this utility model; Figure 4 This is a schematic diagram of the structure of the sliding sleeve and the abutment block in this utility model; Figure 5 This is a cross-sectional view of the rotating sleeve and the positioning sleeve in this utility model.
[0017] In the diagram: 1. Base; 2. Support plate; 3. Hydraulic cylinder; 4. Guide groove; 5. Guide block; 6. Support block; 7. Connecting rod; 8. Mounting sleeve; 9. Slide rod; 10. Inner ring; 11. Clamping block; 12. Base plate; 13. Return spring; 14. Limiting cylinder; 15. Guide plate; 16. Inclined groove; 17. Abutment block; 18. Pressure ring; 19. Sliding sleeve; 20. Sliding groove; 21. Arc rod; 22. Rotating sleeve; 23. Limiting rod; 24. Limiting hole; 25. Positioning sleeve; 26. Sliding hole; 27. Positioning block; 28. Push spring; 29. Positioning groove. Detailed Implementation
[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0021] Please see Figures 1-5 A filter welding machine clamping device includes a base 1, a support plate 2 fixedly mounted on the outer side of the base 1, a hydraulic cylinder 3 fixedly mounted on the support plate 2, a guide groove 4 on the base 1, multiple sets of guide blocks 5 slidably connected to the guide groove 4, a support block 6 fixedly mounted at the top of each set of guide blocks 5, a connecting rod 7 hinged between each set of support blocks 6 and the telescopic end of the hydraulic cylinder 3, an adapter mechanism on each set of support blocks 6, the adapter mechanism including a mounting sleeve 8 and a sliding rod 9, the mounting sleeve 8 fixedly mounted on the support block 6 and an inner ring 10 fixedly mounted on its inner side, multiple sets of sliding rods 9 slidably mounted on the inner ring 10, a clamping block 11 fixedly mounted at the top of each set of sliding rods 9, a base plate 12 fixedly mounted at the bottom of each set of sliding rods 9, and a return spring 13 connected between each set of base plates 12 and the inner ring 10.
[0022] The top of the mounting sleeve 8 is fixedly provided with a limiting cylinder 14. Multiple sets of limiting cylinders 14 are provided and are slidably connected to multiple sets of sliding rods 9 respectively. Guide plates 15 are fixedly provided on the outer walls of multiple sets of sliding rods 9 respectively. Multiple sets of guide plates 15 are slidably connected to multiple sets of limiting cylinders 14 respectively.
[0023] All sets of clamping blocks 11 are made of rubber. The inner side of the mounting sleeve 8 is provided with a slanted groove 16, and multiple sets of slanted grooves 16 are provided, each of which is slidably connected to an abutment block 17.
[0024] The inner side of the mounting sleeve 8 is provided with a pressure ring 18, and the outer side of the pressure ring 18 is fixedly provided with a sliding sleeve 19. The outer wall of the mounting sleeve 8 is provided with a sliding groove 20, and multiple sets of sliding grooves 20 are provided and are slidably connected with the sliding sleeve 19.
[0025] An arc-shaped rod 21 is fixedly provided on the outer side of the sliding sleeve 19. Multiple sets of arc-shaped rods 21 are provided. A rotating sleeve 22 is rotatably provided on the outer wall of the mounting sleeve 8. A limiting rod 23 is fixedly provided on the outer side of the rotating sleeve 22. Multiple sets of limiting rods 23 are provided, and each of them has a limiting hole 24 on its outer wall.
[0026] The inner sides of the multiple sets of abutment blocks 17 are all set to be arc-shaped and abut against the outer walls of the multiple sets of slide rods 9 respectively.
[0027] A positioning sleeve 25 is fixedly provided on the bottom surface of the rotating sleeve 22. A sliding hole 26 is provided on the inner side of the positioning sleeve 25. Multiple sets of sliding holes 26 are provided and each is slidably connected to a positioning block 27. A push spring 28 is provided between each set of positioning blocks 27 and the sliding hole 26. A positioning groove 29 is provided on the outer wall of the mounting sleeve 8. Multiple sets of positioning grooves 29 are provided and are respectively connected to multiple sets of positioning blocks 27.
[0028] In this embodiment, during use, the connecting rod 7 is pushed by the telescopic end of the hydraulic cylinder 3, and the support block 6 is pushed by the connecting rod 7 to slide along the guide groove 4 via the guide block 5. Then, the filter is placed between multiple sets of adapter mechanisms on the top surface of the base 1. The hydraulic cylinder 3 is operated to retract its telescopic end and pull the support block 6 via the connecting rod 7, causing multiple sets of clamping blocks 11 to abut against the outer wall of the filter and stretch the return spring 13. The multiple sets of clamping blocks 11 abut against the outer side of the filter, pushing the sliding sleeve 19 along the multiple sets of adapter mechanisms. The slide groove 20 slides and abuts against the top surface of multiple sets of abutment blocks 17 through the pressure ring 18, so that it slides along the inclined groove 16 and abuts against the outer wall of multiple sets of slide rods 9. At this time, multiple sets of arc rods 21 are parallel to the limiting hole 24 respectively. Rotating the rotating sleeve 22 causes multiple sets of arc rods 21 to be inserted into the limiting hole 24 to limit the slide sleeve 19. Multiple sets of push springs 28 push the positioning block 27 so that its bottom end abuts against the positioning groove 29, completing the positioning of the rotating sleeve 22, so that multiple sets of adapter mechanisms are adapted to the outer wall of the filter machine.
[0029] More specifically, when the adapter mechanism needs to be unlocked, the rotating sleeve 22 is rotated, and the positioning block 27 is pushed through the positioning groove 29 to push the positioning groove 29. This causes multiple sets of positioning blocks 27 to slide along the sliding hole 26 and press against the push spring 28, causing multiple sets of positioning blocks 27 to move along multiple sets of positioning grooves 29. The rotating sleeve 22 drives multiple sets of limiting rods 23 to make the arc rod 21 disengage from the limiting hole 24 and release the limiting of the sliding sleeve 19. This causes the push ring to release the contact with multiple sets of abutting blocks 17. Multiple sets of reset springs 13 pull the base plate 12 and drive the sliding rod 9 to slide along the inner ring 10 and the limiting cylinder 14, thereby causing multiple sets of clamping blocks 11 to reset to the initial position.
[0030] In summary, during use or operation of the entire equipment: In use, the connecting rod 7 is pushed by the telescopic end of the hydraulic cylinder 3, which in turn pushes the support block 6 to slide along the guide groove 4 via the guide block 5. Then, the filter is placed between multiple sets of adapter mechanisms on the top surface of the base 1. The hydraulic cylinder 3 is then operated to retract its telescopic end and pull the support block 6 via the connecting rod 7. This causes multiple sets of clamping blocks 11 to abut against the outer wall of the filter and stretch the return spring 13. The multiple sets of clamping blocks 11 abut against the outer side of the filter, pushing the sliding sleeve. Slide 19 along multiple sets of sliding grooves 20 and abut against the top surface of multiple sets of abutting blocks 17 through pressure ring 18, so that it slides along inclined groove 16 and abuts against the outer wall of multiple sets of sliding rods 9. At this time, multiple sets of arc-shaped rods 21 are parallel to the limiting holes 24 respectively. Rotate the rotating sleeve 22 so that multiple sets of arc-shaped rods 21 are inserted into the limiting holes 24 to limit the sliding sleeve 19. Through multiple sets of push springs 28, push the positioning block 27 so that its bottom end abuts against the positioning groove 29 to complete the positioning of the rotating sleeve 22, so that multiple sets of adapter mechanisms are adapted to the outer wall of the filter machine.
[0031] When the adapter mechanism needs to be unlocked, the rotating sleeve 22 is rotated, and the positioning block 27 is pushed through the positioning groove 29 to push the positioning groove 29. This causes multiple sets of positioning blocks 27 to slide along the sliding hole 26 and press against the push spring 28, causing multiple sets of positioning blocks 27 to move along multiple sets of positioning grooves 29. The rotating sleeve 22 drives multiple sets of limiting rods 23 to make the arc rod 21 disengage from the limiting hole 24 and release the limiting of the sliding sleeve 19. This causes the push ring to release the contact with multiple sets of abutting blocks 17. Multiple sets of reset springs 13 pull the base plate 12 and drive the sliding rod 9 to slide along the inner ring 10 and the limiting cylinder 14, thereby causing multiple sets of clamping blocks 11 to reset to the initial position.
[0032] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A filter welding machine clamping device, comprising a base (1), characterized in that: A support plate (2) is fixedly provided on the outer side of the base (1). A hydraulic cylinder (3) is fixedly provided on the support plate (2). A guide groove (4) is provided on the base (1). Multiple sets of guide blocks (5) are provided in the guide groove (4) and are slidably connected to each other. A support block (6) is fixedly provided at the top of each set of guide blocks (5). A connecting rod (7) is hinged between each set of support blocks (6) and the telescopic end of the hydraulic cylinder (3). An adapter mechanism is provided on each set of support blocks (6). The adapter mechanism includes an installation sleeve (8) and a slide rod (9). The installation sleeve (8) is fixed on the support block (6) and an inner ring (10) is fixedly provided on its inner side. Multiple sets of slide rods (9) are provided and slide on the inner ring (10). A clamping block (11) is fixedly provided at the top of each set of slide rods (9). A base plate (12) is fixedly provided at the bottom of each set of slide rods (9). A reset spring (13) is connected between each set of base plates (12) and the inner ring (10).
2. The filter welding machine clamping device according to claim 1, characterized in that: The top of the mounting sleeve (8) is fixedly provided with a limiting cylinder (14). The limiting cylinder (14) is provided in multiple sets and is slidably connected to multiple sets of sliding rods (9). The outer walls of the multiple sets of sliding rods (9) are fixedly provided with guide plates (15). The multiple sets of guide plates (15) are slidably connected to the multiple sets of limiting cylinders (14).
3. The filter welding machine clamping device according to claim 2, characterized in that: All of the clamps (11) are made of rubber.
4. The filter welding machine clamping device according to claim 3, characterized in that: The inner side of the mounting sleeve (8) is provided with a slanted groove (16), and the slanted groove (16) is provided with multiple sets and each is slidably connected with an abutment block (17).
5. The filter welding machine clamping device according to claim 4, characterized in that: The inner side of the mounting sleeve (8) is provided with a pressure ring (18), and the outer side of the pressure ring (18) is fixedly provided with a sliding sleeve (19). The outer wall of the mounting sleeve (8) is provided with a sliding groove (20), and the sliding groove (20) is provided in multiple sets and is slidably connected with the sliding sleeve (19).
6. The filter welding machine clamping device according to claim 5, characterized in that: An arc-shaped rod (21) is fixedly provided on the outside of the sliding sleeve (19). Multiple sets of the arc-shaped rod (21) are provided. A rotating sleeve (22) is rotatably provided on the outer wall of the mounting sleeve (8). A limiting rod (23) is fixedly provided on the outside of the rotating sleeve (22). Multiple sets of the limiting rod (23) are provided, and each has a limiting hole (24) on its outer wall.
7. A filter welding machine clamping device according to claim 6, characterized in that: multiple sets of... The inner side of each abutment block (17) is set in an arc shape and abuts against the outer wall of multiple sets of slide bars (9).
8. The filter welding machine clamping device according to claim 7, characterized in that: A positioning sleeve (25) is fixedly provided on the bottom surface of the rotating sleeve (22). A sliding hole (26) is provided on the inner side of the positioning sleeve (25). Multiple sets of positioning blocks (27) are provided in the sliding hole (26). Push springs (28) are provided between the multiple sets of positioning blocks (27) and the sliding hole (26). A positioning groove (29) is provided on the outer wall of the mounting sleeve (8). Multiple sets of positioning grooves (29) are provided and are respectively connected to multiple sets of positioning blocks (27).