Fixing tool for nut side hole machining

Abstract

The utility model discloses a nut side hole machining fixing tool. The nut side hole machining fixing tool comprises a base, an air cylinder and a convex moving block. L-shaped blocks are arranged on the two sides of the top of the base correspondingly, and concave frames are arranged on the tops of the two L-shaped blocks; the air cylinder is arranged in the base, and a threaded rod is arranged at the output end of the air cylinder and located in the base; according to the utility model, the bolt is screwed out and is separated into the compression block and the connecting plate, so that the fixation of the compression block can be relieved, and the subsequent replacement of the compression blocks with different sizes is facilitated; through cooperation of the screw rod, the connecting plate and the pressing block, stable clamping force can be provided, the friction force between the nut and the rubber pad A is increased, the nut is prevented from loosening in the machining process, and the surface of the nut can be prevented from being scratched; the air cylinder is used for driving the convex moving block to move, then the inclined block is driven to adjust the position, the tool can adapt to nuts of different specifications, the universality of the tool is greatly improved, and the tool is suitable for machining requirements of side holes of various nuts.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, specifically to a tooling for fixing and machining the side hole of a nut. Background Technology

[0002] Nuts are parts that tightly connect mechanical equipment. Nuts with side holes are commonly used fasteners in mechanical equipment that can assist in visual positioning. The side holes of the nuts are often used to cooperate with pins to strengthen the limiting function.

[0003] In existing technologies, traditional fixtures lack a structure designed for easy replacement of clamping blocks. When machining nuts of different sizes, the size of the clamping blocks cannot be quickly adjusted. Since different nut sizes require different specifications of clamping blocks to achieve the best clamping effect, the inability to easily replace them may lead to unstable clamping or damage to the nuts, affecting machining quality and efficiency, and increasing production costs. Furthermore, existing fixtures may not effectively adapt to different nut specifications. Whether it's a change in nut diameter or a difference in shape, it's difficult to achieve positioning and clamping through simple adjustments, reducing production efficiency and failing to meet diverse requirements for machining nut side holes. Therefore, we introduce a fixture for machining nut side holes. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling for machining and fixing the side hole of a nut, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nut side hole machining and fixing fixture, comprising: a base, wherein L-shaped blocks are respectively provided on both sides of the top of the base, and concave frames are provided on the top of the two sets of L-shaped blocks;

[0006] A cylinder, wherein the cylinder is disposed inside the base;

[0007] A convex moving block is connected to the output end of the cylinder;

[0008] The surface of the concave frame is provided with a clamping mechanism. The screw of the clamping mechanism drives the connecting plate and the pressing block, so that the pressing block moves downward inside the concave frame.

[0009] The clamping mechanism includes a bolt connected to the top of the connecting plate, a screw passing through the concave frame and fitted into a bearing at the top of the connecting plate, a clamping block connected to the bottom of the connecting plate, and the bolt passing through the connecting plate and connected to the inside of the clamping block. When the bolt is released into the clamping block and the connecting plate, the clamping block can be released from its fixation, thus facilitating the subsequent replacement of clamping blocks of different sizes. The top of the screw passes through the concave frame and is connected to a turntable, which is fixedly set with the screw. A rubber pad A is connected to the bottom of the clamping block, which can protect the surface of the nut.

[0010] The top of the clamping block is connected to a T-shaped limiting rod A, which passes through the concave frame. The T-shaped limiting rod A passes through the concave frame and guides and limits the up and down movement of the clamping block, ensuring that the clamping block moves vertically and stably.

[0011] The top of the convex moving block passes through the base and is connected to an inclined block.

[0012] A rubber pad B is connected to the surface of the inclined block, which can protect the surface of the nut.

[0013] The bottom of the convex moving block is connected to a slider, and the inside of the base is provided with a sliding groove for sliding the slider. The slider at the bottom of the convex moving block slides in the sliding groove inside the base to ensure the smooth movement of the convex moving block.

[0014] The surface of the base is provided with a limiting groove for sliding the convex moving block. The convex moving block slides in the limiting groove on the surface of the base, thereby limiting and guiding the movement of the convex moving block.

[0015] The side of the inclined block is connected to a T-shaped limiting rod B, which passes through the L-shaped block, ensuring the stability of the inclined block's movement.

[0016] The L-shaped block has a support rod on its inner side, and a positioning tilting block is connected to one side of the support rod. A rubber pad B is connected to the surface of the positioning tilting block and the tilting block.

[0017] Compared with the prior art, the beneficial effects of this utility model are: by unscrewing the bolts, the bolts can be released from the inside of the clamping block and the connecting plate, thus facilitating the subsequent replacement of clamping blocks of different sizes and making it convenient to use;

[0018] The clamping mechanism, through the cooperation of the screw, connecting plate and clamping block, can provide a stable clamping force. The rubber pad A increases the friction between the pad and the nut, preventing the nut from loosening during processing, and also protects the nut surface from scratches. The T-shaped limit rod A ensures the accuracy and stability of the clamping block movement, thereby ensuring that the nut is reliably clamped and improving the processing accuracy.

[0019] By using a cylinder to drive the convex moving block to move, which in turn drives the wedge block to adjust its position, it can adapt to nuts of different specifications. Whether it is a change in nut diameter or a difference in shape, effective positioning and clamping can be achieved by adjusting the position of the wedge block, which greatly improves the versatility of the tooling, reduces production costs, and is suitable for various nut side hole processing needs.

[0020] The coordinated operation of all components makes the tooling perform excellently in clamping nuts, adapting to different specifications, and ensuring machining accuracy, thereby improving the quality and efficiency of nut side hole machining. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the clamping nut structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the positioning groove of this utility model.

[0024] In the diagram: 1. Base; 2. Support rod; 3. T-shaped limit rod B; 4. L-shaped block; 5. Concave frame; 6. Inclined block; 7. Pressing block; 8. T-shaped limit rod A; 9. Screw; 10. Rubber pad A; 11. Connecting plate; 12. Cylinder; 13. Rubber pad B; 14. Positioning tilt block; 15. Convex moving block; 16. Slider; 17. Slide groove; 18. Bolt; 19. Turntable; 20. Limiting groove; 21. Machining table; 22. Positioning groove; 23. Hexagonal groove; 24. Circular groove; 25. Nut; 26. Side hole; 27. Bearing. 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. 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.

[0026] Please see Figure 1-3 This utility model provides a technical solution: a nut side hole machining and fixing fixture, including: a machining table 21 and a base 1, the top of the machining table 21 is provided with the base 1, and L-shaped blocks 4 are respectively provided on both sides of the top of the base 1, and concave frames 5 are provided on the top of the two sets of L-shaped blocks 4.

[0027] Cylinder 12, wherein the cylinder 12 is disposed inside the base 1;

[0028] A convex moving block 15 is connected to the output end of the cylinder 12;

[0029] The surface of the concave frame 5 is provided with a clamping mechanism. The screw 9 of the clamping mechanism drives the connecting plate 11 and the pressing block 7, so that the pressing block 7 moves down inside the concave frame 5.

[0030] The clamping mechanism includes a bolt 18 connected to the top of the connecting plate 11, a screw 9 passing through the concave frame 5 and fitted into the bearing 27 at the top of the connecting plate 11, a clamping block 7 connected to the bottom of the connecting plate 11, and the bolt 18 passing through the connecting plate 11 and connected to the inside of the clamping block 7. When the bolt 18 is released into the inside of the clamping block 7 and the connecting plate 11, the clamping block 7 can be released from its fixation, thus facilitating the subsequent replacement of clamping blocks 7 of different sizes. The top of the screw 9 passes through the concave frame 5 and is connected to a turntable 19, which is fixedly set with the screw 9. A rubber pad A10 is connected to the bottom of the clamping block 7, which can protect the surface of the nut.

[0031] The screw 9 and the concave frame 5 are connected by threads / linkage. This can be achieved by the concave frame 5 having a threaded hole for the screw 9 to be fitted, or by the concave frame 5 having a through hole and then installing a nut sleeve in the through hole.

[0032] The top of the clamping block 7 is connected to a T-shaped limiting rod A8. The T-shaped limiting rod A8 is a smooth rod with a smooth surface, which reduces the friction when sliding with the concave frame 5. The T-shaped limiting rod A8 passes through the concave frame 5 and plays a guiding and limiting role in the up and down movement of the clamping block 7, ensuring that the clamping block 7 moves vertically and stably.

[0033] The top of the convex moving block 15 passes through the base 1 and is connected to the inclined block 6.

[0034] The surface of the inclined block 6 is connected to a rubber pad B13, which can protect the surface of the nut.

[0035] The bottom of the convex moving block 15 is connected to a slider 16. The base 1 has a groove 17 inside for sliding the slider 16. The slider 16 at the bottom of the convex moving block 15 slides in the groove 17 inside the base 1 to ensure the smooth movement of the convex moving block 15.

[0036] The surface of the base 1 is provided with a limiting groove 20 for sliding the convex moving block 15. The convex moving block 15 slides in the limiting groove 20 on the surface of the base 1, thereby limiting and guiding the movement of the convex moving block 15.

[0037] The side of the inclined block 6 is connected to a T-shaped limiting rod B3, and the T-shaped limiting rod B3 passes through the L-shaped block 4. The T-shaped limiting rod B3 on the side of the inclined block 6 passes through the L-shaped block 4. The T-shaped limiting rod B3 is a smooth rod with a smooth surface, which reduces the friction when sliding with the L-shaped block 4 and ensures the stability of the movement of the inclined block 6.

[0038] One of the L-shaped blocks 4 has a support rod 2 on its inner side. A positioning tilt block 14 is connected to one side of the support rod 2. A rubber pad B13 is connected to the surface of the positioning tilt block 14 and the inclined block 6. The inclined block 6 and the positioning tilt block 14 have the same shape and size.

[0039] This utility model, such as Figure 1 As shown, a positioning groove 22 is provided on the inner side of the inclined block 6 and the positioning tilt block 14 that are close to each other. When a side hole 26 is opened on the side of the nut 25 as needed, the nut 25 is placed between the inclined block 6 and the positioning tilt block 14, so that the lower end face of the nut 25 is located in the positioning groove 22. Then, the inclined block 6 is pushed by the cylinder 12, thereby clamping the nut 25 in the positioning groove 22.

[0040] This utility model, by providing a positioning groove 22, allows the nut 25 to be effectively clamped and fixed. For example... Figure 3 As shown, the positioning groove 22 includes a hexagonal groove 23 and a circular groove 24, wherein the hexagonal groove 23 encloses the circular groove 24, both are at the same center, and the circular groove 24 is located below the hexagonal groove 23. This can accommodate both hexagonal and circular nuts, expanding the range of applications for clamping and fixing.

[0041] The instruction manual indicates that a portion of the rubber pad B13 has a shape consistent with the positioning groove 22, thus ensuring that the positioning groove 22 is also covered with the rubber pad B13. When the upper surface of the nut 25 is pressed down by the two clamping blocks 7, the rubber pad A10, due to its thickness, can be compressed, which protects the nut 25 and makes it easier to clamp and fix the nut 25 in the radial direction.

[0042] The extension and retraction of the piston rod of cylinder 12 is set as needed to control the clamping force of the inclined block 6 and the positioning tilting block 14 on the nut 25. Similarly, the clamping force of the pressing block 7 on the nut 25 in the radial direction is also controlled based on operational experience. This utility model can not only use the rotation of the turntable 19 to control the lifting and lowering of the pressing block 7, but also use a stepper motor installed on the concave frame 5 to drive the screw 9 to lift and lower through a gear set to achieve automatic control of the lifting and lowering of the pressing block 7.

[0043] Specifically, such as Figure 2 As shown, before use, the convex moving block 15 is moved by the output end (piston rod) of the cylinder 12, so that the left inclined block 6 moves to the right positioning tilt block 14. When the nut 25 can be placed between the inclined block 6 and the positioning tilt block 14, and the nut 25 will not fall out of the positioning groove 22 between the two, this is set as the initial position of the inclined block 6.

[0044] In use, a side hole 26 needs to be made in the nut 25. The nut 25 is placed in the positioning groove 22 of the inclined block 6 at the initial position. Then, the cylinder 12 is controlled to drive the convex moving block 15 to move through the output end of the cylinder 12. The slider 16 at the bottom of the convex moving block 15 slides in the sliding groove 17 inside the base 1 to ensure the smooth movement of the convex moving block 15. The top of the convex moving block 15 slides in the limiting groove 20 on the surface of the base 1 to limit and guide the movement of the convex moving block 15. The convex moving block 15 drives the inclined block 6 to move. The T-shaped limiting rod B3 on the side of the inclined block 6 passes through the L-shaped block 4 to ensure the stability of the movement of the inclined block 6. The rubber pad B13 on the surface of the inclined block 6 contacts the side of the nut to form a clamping and fixing.

[0045] Next, the turntable 19 of the clamping mechanism is rotated, which drives the screw 9 to rotate. Since the screw 9 is threadedly connected to the connecting plate 11 and the connecting plate 11 is restricted by the concave frame 5 to only move up and down, the rotation of the screw 9 will cause the connecting plate 11 to move down along the screw 9. The connecting plate 11 will drive the clamping block 7 to move down. The rubber pad A10 at the bottom of the clamping block 7 will contact the nut and gradually clamp the nut. The T-shaped limit rod A8 passes through the concave frame 5 and plays a guiding and limiting role in the up and down movement of the clamping block 7, ensuring that the clamping block 7 moves vertically and stably, thereby achieving reliable clamping of the nut, completing the fixation, and facilitating use.

[0046] Meanwhile, the bolt 18 passes through the connecting plate 11 and connects to the clamping block 7, which further enhances the stability of the connection between the clamping block 7 and the connecting plate 11. By unscrewing the bolt 18 and letting it come out of the clamping block 7 and the connecting plate 11, the clamping block 7 can be released from its fixation, which makes it easier to replace clamping blocks 7 of different sizes in the future and facilitates its use.

[0047] By adjusting the position of the wedge block 6, nuts of different diameters can be accommodated, enabling the positioning and auxiliary clamping of the nuts, thus keeping the nuts stable when machining side holes.

[0048] 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 fixture for machining and fixing the side hole of a nut, characterized in that, include: The base (1) has L-shaped blocks (4) on both sides of its top, and the top of the two sets of L-shaped blocks (4) has concave frames (5). Cylinder (12), wherein the cylinder (12) is disposed inside the base (1); A convex moving block (15) is connected to the output end of the cylinder (12); The surface of the concave frame (5) is provided with a clamping mechanism. The screw (9) of the clamping mechanism drives the connecting plate (11) and the pressing block (7) so that the pressing block (7) moves down inside the concave frame (5).

2. The nut side hole machining and fixing fixture according to claim 1, characterized in that, The clamping mechanism includes a bolt (18) connected to the top of the connecting plate (11), a screw (9) passing through the concave frame (5) and fitted inside the bearing (27) at the top of the connecting plate (11), a pressing block (7) connected to the bottom of the connecting plate (11), the bolt (18) passing through the connecting plate (11) and connected to the inside of the pressing block (7), the top of the screw (9) passing through the concave frame (5) and connected to a turntable (19), and the bottom of the pressing block (7) connected to a rubber pad A (10).

3. The nut side hole machining and fixing fixture according to claim 2, characterized in that, The top of the clamping block (7) is connected to a T-shaped limiting rod A (8), and the T-shaped limiting rod A (8) passes through the concave frame (5).

4. The nut side hole machining and fixing fixture according to claim 1, characterized in that, The top of the convex moving block (15) passes through the base (1) and is connected to the inclined block (6).

5. The nut side hole machining and fixing fixture according to claim 4, characterized in that, The bottom of the convex moving block (15) is connected to a slider (16), and the base (1) has a groove (17) for sliding the slider (16).

6. The nut side hole machining and fixing fixture according to claim 4, characterized in that, The base (1) has a limiting groove (20) on its surface for sliding the convex moving block (15).

7. The nut side hole machining and fixing fixture according to claim 4, characterized in that, The side of the inclined block (6) is connected to a T-shaped limiting rod B (3), and the T-shaped limiting rod B (3) passes through the L-shaped block (4).

8. The nut side hole machining and fixing fixture according to claim 1, characterized in that, The L-shaped block (4) has a support rod (2) on its inner side. A positioning tilting block (14) is connected to one side of the support rod (2). A rubber pad B (13) is connected to the surface of the positioning tilting block (14) and the inclined block (6).

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