Tensioner gripper machining and positioning tool

Abstract

The utility model relates to the technical field of workpiece machining, and discloses a tensioner gripper machining and positioning tool which comprises a fixing base, a fixing plate is fixedly installed on the inclined outer surface of the fixing base, a first rectangular groove is formed in the inner side of the fixing plate, a fixing block is fixedly installed in the first rectangular groove, and a clamping groove is formed in the fixing block. Telescopic rods are fixedly installed on the two sides of the fixing block. Compared with a traditional device, the device has the advantages that a gripper die can be quickly replaced, the adaptability to different grippers is greatly enhanced, meanwhile, the two clamping blocks can conduct elastic clamping according to different dies, the fixing effect is guaranteed, the universality is improved, the use efficiency of a tool is effectively improved, the time cost for replacing the dies is reduced, and the production efficiency is improved. And diversified production requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of workpiece processing technology, and more specifically, to a tensioner gripper positioning fixture. Background Technology

[0002] Positioning fixtures play a crucial role in the machining field, especially in roughing processes. They are key to ensuring product quality. These fixtures are mainly used for precise machining positioning, which not only significantly improves machining efficiency but also greatly enhances machining accuracy and quality, and effectively ensures the safety of the machining process. Taking the machining of the gripper of a medical wire tensioner as an example, the dimensional accuracy of the upper teeth of the gripper, as a key component of the device, is crucial. If the size is too large, it will not be able to grip the wire; if the size is too small, it will lock up. After the workpiece has been processed by lathe and wire cutting, the positioning fixture comes in handy when the clamping teeth are machined on the milling machine. By firmly fixing and clamping the workpiece, it provides convenient conditions for the smooth machining of the clamping teeth.

[0003] For example, the existing Chinese patent number CN219986880U describes a tensioner gripper machining and positioning fixture, which includes a fixed base. The fixed base has a clamping inclined surface for placing the gripper. A contoured cavity for accommodating the gripper is formed on the clamping inclined surface. A locking block is provided at the top of the contoured cavity. The locking block has an arc-shaped pressure head, which abuts against the upper end face of the gripper. The fixed base has a limiting groove for accommodating the locking block. A limiting conical groove is provided at the top of the limiting groove. A limiting ramp is provided at the top of the locking block, which contacts the limiting conical groove. An arc-shaped pad is also provided on the bottom surface of the limiting ramp. The angle of the limiting conical groove is greater than the angle of the limiting ramp. This gripper machining and positioning fixture, by forming a contoured cavity on the fixed base to accommodate the gripper, fixes the gripper after it is inserted using the locking block that mates with the upper end face of the gripper, thus facilitating the machining of the clamping tooth surface.

[0004] The tensioner gripper positioning fixture has gradually revealed some limitations in actual operation. Its current operating mode is relatively simple, only suitable for a certain type of gripper, and lacks versatility. When production needs change and different mold cavities need to be changed to process diversified grippers, the fixture becomes inadequate. Due to the lack of flexibility in the fixture's structural design, the operation of switching mold cavities is extremely cumbersome, time-consuming, and labor-intensive. This not only seriously affects production efficiency but also restricts the development of product diversification to a certain extent. Therefore, improvement and optimization are needed. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a tensioner gripper machining and positioning fixture, which has the advantage of easy mold replacement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tensioner gripper machining and positioning fixture, comprising a fixed base, a fixed plate fixedly installed on the inclined outer surface of the fixed base, a first rectangular groove formed on the inner side of the fixed plate, a fixed block fixedly installed inside the first rectangular groove, telescopic rods fixedly installed on both sides of the fixed block, a first slider slidably installed on both sides of the inner side of the first rectangular groove, and the sides of the telescopic rods fixedly connected to the first sliders, a spring fixedly connected between the fixed block and the first sliders and movably sleeved on the outer surface of the telescopic rods, a clamping block fixedly installed above the first sliders, a mold plate placed inside the clamping blocks on both sides, and a mold cavity formed on the outer surface of the mold plate, a gripper placed inside the mold plate and located inside the mold cavity.

[0007] As a preferred embodiment of this utility model, a protruding strip is fixedly installed on the side of the fixed base. A second rectangular groove is formed on the outer surface of the protruding strip. A lead screw is rotatably installed inside the second rectangular groove, and the lead screw extends out of the protruding strip. Second sliders are slidably installed on both sides of the inner side of the second rectangular groove, and the two ends of the second rectangular groove pass through the interior of the two second sliders and are threadedly connected to them. An adjusting block is fixedly installed at the end of the lead screw. A limiting plate is fixedly installed above each of the second sliders and extends to the outer surface of the fixed plate, parallel to the clamping block. A rubber protrusion is fixedly installed inside the limiting plate.

[0008] As a preferred technical solution of this utility model, a flexible pad is fixedly installed on the inner side of the clamping block, and the flexible pad is arranged in a linear array and abuts against the upper end of the gripper.

[0009] As a preferred embodiment of this utility model, the rubber bumps are distributed in a linear array on the outer surface of the limiting plate, and the rubber bumps are of equal size at the top and bottom.

[0010] As a preferred embodiment of this utility model, a base block is slidably mounted on the outer surface of the fixed base, and a toolbox is fixedly mounted on top of the base block.

[0011] As a preferred embodiment of this utility model, a baffle is fixedly installed above the fixed base, and the baffle is arc-shaped.

[0012] As a preferred embodiment of this utility model, a stable base is fixedly installed at the bottom of the fixed base, and the stable base is fixedly installed around the bottom of the fixed base.

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

[0014] 1. This utility model involves the mold plate contacting the clamping block on the other side, causing the external force to disappear. Then, the restoring force of the springs on both sides will drive the first slider, clamping block, and telescopic rod to return to their positions, thereby fixing and clamping the mold plate. After that, the gripper is placed into the mold cavity opened on the outer surface of the mold plate, and the fixing plate is located on the inclined surface of the fixing base. Compared with traditional devices, this device can quickly change the gripper mold, greatly enhancing the adaptability to different grippers. At the same time, the two clamping blocks can elastically clamp according to different molds, which not only ensures the fixing effect but also improves versatility, effectively improving the efficiency of tooling use, reducing the time cost of changing molds, and meeting diverse production needs.

[0015] 2. When the lead screw rotates, it drives the second slider, which is threaded on the outer surface, to slide inward inside the second rectangular groove. When the second slider slides in the second rectangular groove, it drives the limiting plates on both sides to move inward, and then simultaneously drives the rubber protrusions on both sides to limit the clamping block. Compared with traditional devices, this device effectively overcomes the vibration during processing, avoids the key component clamping block from shaking due to vibration, and prevents the inner gripper from being displaced. This stabilizing mechanism effectively ensures processing accuracy, reduces scrap rate, improves overall production quality, and lays a solid foundation for efficient and high-precision processing tasks. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;

[0017] Figure 2 This is a schematic diagram of the fixing plate structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the baffle structure of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the clamping block structure of this utility model.

[0021] In the diagram: 1. Fixed base; 2. Fixed plate; 3. First rectangular groove; 4. Fixed block; 5. Telescopic rod; 6. Spring; 7. First slider; 8. Clamping block; 9. Flexible pad; 10. Mold plate; 11. Gripper; 12. Protrusion; 13. Second rectangular groove; 14. Second slider; 15. Limiting plate; 16. Rubber protrusion; 17. Adjusting block; 18. Lead screw; 19. Baffle; 20. Base block; 21. Toolbox; 22. Stable base. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 5 As shown, this utility model provides a tensioner gripper processing and positioning fixture, including a fixed base 1, a fixed plate 2 fixedly installed on the inclined outer surface of the fixed base 1, a first rectangular groove 3 opened on the inner side of the fixed plate 2, a fixed block 4 fixedly installed inside the first rectangular groove 3, telescopic rods 5 fixedly installed on both sides of the fixed block 4, a first slider 7 slidably installed on both sides of the inner side of the first rectangular groove 3, and the sides of the telescopic rods 5 are fixedly connected to the first sliders 7, a spring 6 is fixedly connected between the fixed block 4 and the first slider 7 and movably sleeved on the outer surface of the telescopic rods 5, a clamping block 8 is fixedly installed above the first slider 7, a mold plate 10 is placed inside the clamping blocks 8 on both sides, and a mold cavity is opened on the outer surface of the mold plate 10, and a gripper 11 is placed inside the mold plate 10 and located inside the mold cavity.

[0024] When the staff needs to place the mold plate 10, firstly, the mold plate 10 is pressed against the clamping block 8 on one side by external force. Then, the clamping block 8 will drive the first slider 7 to slide inside the first rectangular groove 3, which will cause the spring 6 to undergo elastic deformation. Then, the mold plate 10 is brought into contact with the clamping block 8 on the other side. At this time, the external force disappears, and the elastic force of the springs 6 on both sides will restore the first slider 7, the clamping block 8, and the telescopic rod 5 to return to their positions, thereby fixing and clamping the mold plate 10. Then, the gripper 11 is placed into the mold cavity opened on the outer surface of the mold plate 10, and the fixing plate 2 is located on the inclined surface of the fixing base 1.

[0025] When the mold plate 10 comes into contact with the clamping block 8 on the other side, the external force disappears. Then, the elastic force of the springs 6 on both sides will cause the first slider 7, the clamping block 8, and the telescopic rod 5 to return to their original positions, thereby fixing and clamping the mold plate 10. Then, the gripper 11 is placed into the mold cavity opened on the outer surface of the mold plate 10, and the fixing plate 2 is located on the inclined surface of the fixing base 1. Compared with the traditional device, this device can quickly change the gripper mold, greatly enhancing the adaptability to different grippers. At the same time, the two clamping blocks 8 can elastically clamp according to different molds, which not only ensures the fixing effect but also improves the versatility, effectively improving the efficiency of tooling use, reducing the time cost of changing molds, and meeting diverse production needs.

[0026] The fixed base 1 has a protrusion 12 fixedly installed on its side. The outer surface of the protrusion 12 has a second rectangular groove 13. A lead screw 18 is rotatably installed inside the second rectangular groove 13 and extends out of the protrusion 12. The two sides of the inner side of the second rectangular groove 13 are slidably installed with second sliders 14 and the two ends of the second rectangular groove 13 pass through the two second sliders 14 and are threadedly connected to them. An adjustment block 17 is fixedly installed at the end of the lead screw 18. A limit plate 15 is fixedly installed above each of the second sliders 14 and extends to the upper surface of the fixed plate 2 and is parallel to the clamping block 8. A rubber protrusion 16 is fixedly installed inside the limit plate 15.

[0027] When the adjusting block 17 is rotated, the lead screw 18 will start to rotate. When the lead screw 18 rotates, it will drive the second slider 14, which is threaded on the outer surface, to slide inward inside the second rectangular groove 13. When the second slider 14 slides inward inside the second rectangular groove 13, it will drive the limiting plates 15 on both sides to move inward. Then, it will simultaneously drive the rubber protrusions 16 on both sides to limit the clamping block 8, thereby preventing the clamping block 8 from shaking due to vibration during processing, which would cause the inner gripper 11 to shake and reduce the processing accuracy.

[0028] When the lead screw 18 rotates, it will drive the second slider 14, which is threaded on the outer surface, to slide inward inside the second rectangular groove 13. When the second slider 14 slides inward inside the second rectangular groove 13, it will drive the limiting plates 15 on both sides to move inward. Then, it will simultaneously drive the rubber protrusions 16 on both sides to limit the clamping block 8. Compared with the traditional device, this device effectively overcomes the vibration during processing and avoids the clamping block 8 of the key component from shaking due to vibration. This prevents the inner gripper 11 from being displaced. This stabilization mechanism effectively ensures the processing accuracy, reduces the scrap rate, improves the overall production quality, and lays a solid foundation for efficient and high-precision processing tasks.

[0029] The clamping block 8 has a flexible pad 9 fixedly installed on its inner side, and the flexible pad 9 is arranged in a linear array and abuts against the upper end of the gripper 11.

[0030] By using flexible pads 9 arranged in a linear array and abutting against the upper end of the gripper 11, the stability of the gripper 11 during processing can be effectively increased.

[0031] The rubber bumps 16 are arranged in a linear array on the outer surface of the limiting plate 15, and the rubber bumps 16 are of equal size at the top and bottom.

[0032] By making the rubber protrusion 16 equal in size at the top and bottom, the static friction force when the rubber protrusion 16 contacts the clamping block 8 can be effectively reduced, thus reducing damage.

[0033] Among them, a base block 20 is slidably installed on the outer surface of the fixed base 1, and a toolbox 21 is fixedly installed on the top of the base block 20.

[0034] The toolbox 21 allows for the effective storage of frequently used tools, preventing work efficiency issues caused by searching for tools.

[0035] A baffle 19 is fixedly installed above the fixed base 1, and the baffle 19 is arc-shaped.

[0036] The arc-shaped baffle 19 effectively blocks debris that flies around during the processing.

[0037] The bottom of the fixed base 1 is fixedly installed with a stable base 22, and the stable base 22 is fixedly installed around the bottom of the fixed base 1.

[0038] By fixing the device to the bottom of the fixed base 1 with the stable base 22, the stability of the entire device can be effectively maintained, avoiding easy influence from external physical factors.

[0039] Working principle and usage process of this utility model:

[0040] When the staff needs to place the mold plate 10, firstly, the mold plate 10 is pressed against the clamping block 8 on one side by external force. Then, the clamping block 8 will drive the first slider 7 to slide inside the first rectangular groove 3, which will cause the spring 6 to undergo elastic deformation. Then, the mold plate 10 is brought into contact with the clamping block 8 on the other side. At this time, the external force disappears, and the elastic force of the springs 6 on both sides will restore the first slider 7, the clamping block 8, and the telescopic rod 5 to return to their positions, thereby fixing and clamping the mold plate 10. Then, the gripper 11 is placed into the mold cavity opened on the outer surface of the mold plate 10, and the fixing plate 2 is located on the inclined surface of the fixing base 1.

[0041] When the adjusting block 17 is rotated, the lead screw 18 will start to rotate. When the lead screw 18 rotates, it will drive the second slider 14, which is threaded on the outer surface, to slide inward inside the second rectangular groove 13. When the second slider 14 slides inward inside the second rectangular groove 13, it will drive the limiting plates 15 on both sides to move inward. Then, it will simultaneously drive the rubber protrusions 16 on both sides to limit the clamping block 8, thereby preventing the clamping block 8 from shaking due to vibration during processing, which would cause the inner gripper 11 to shake and reduce the processing accuracy.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] 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 tensioner pawl machining positioning tooling fixture comprising a fixed base (1), characterized in that: The inclined outer surface of the fixed base (1) is fixedly installed with a fixed plate (2), the inner side of the fixed plate (2) is provided with a first rectangular groove (3), the inside of the first rectangular groove (3) is fixedly installed with a fixed block (4), the two sides of the fixed block (4) are fixedly installed with telescopic rods (5), the two sides of the inner side of the first rectangular groove (3) are slidingly installed with first sliding blocks (7), and the sides of the telescopic rods (5) are fixedly connected with the first sliding blocks (7), the fixed block (4) and the first sliding block (7) are fixedly connected with springs (6) and movably sleeved on the outer surface of the telescopic rod (5), the upper side of the first sliding block (7) is fixedly installed with a clamping block (8), the two sides of the clamping block (8) are placed with a mold plate (10), and the outer surface of the mold plate (10) is provided with a mold cavity, the inner side of the mold plate (10) is placed with a paw (11) and located in the inner side of the mold cavity.

2. The tensioner pawl machining positioning fixture of claim 1, wherein: The side of the fixed base (1) is fixedly installed with a convex strip (12), the outer surface of the convex strip (12) is provided with a second rectangular groove (13), the inner side of the second rectangular groove (13) is rotatably installed with a lead screw (18) and the lead screw (18) extends out of the convex strip (12), the two sides of the inner side of the second rectangular groove (13) are slidingly installed with second sliding blocks (14) and the two ends of the second rectangular groove (13) penetrate into the interiors of the two second sliding blocks (14) and are threadedly sleeved with them, the end of the lead screw (18) is fixedly installed with an adjusting block (17), the upper sides of the second sliding blocks (14) are fixedly installed with limiting plates (15) and extend to the upper side of the outer surface of the fixed plate (2) and are parallel to the clamping block (8), the inner side of the limiting plate (15) is fixedly installed with rubber protrusions (16).

3. The tensioner pawl machining positioning fixture of claim 1, wherein: The inner side of the clamping block (8) is fixedly installed with a flexible pad (9), and the flexible pad (9) is linearly arrayed and abuts against the upper end of the paw (11).

4. The tensioner pawl machining positioning fixture of claim 2, wherein: The rubber protrusions (16) are linearly arrayed on the outer surface of the limiting plate (15) and are in the shape of equal size up and down.

5. The tensioner pawl machining positioning fixture of claim 1, wherein: The outer surface of the fixed base (1) is slidingly installed with a bottom block (20), the upper side of the bottom block (20) is fixedly installed with a tool box (21).

6. The tensioner pawl machining positioning fixture of claim 1, wherein: The upper side of the fixed base (1) is fixedly installed with a baffle (19), and the baffle (19) is in an arc shape.

7. The tensioner pawl machining positioning fixture of claim 1, wherein: The bottom of the fixed base (1) is fixedly installed with a stable base (22), and the stable base (22) is fixedly installed around the bottom of the fixed base (1).

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