A machining jig locking device

Abstract

The utility model discloses a machining jig locking device, including jig main part and the fixed plate of setting in jig main body left and right both ends position department, when using machining jig locking device, first place the pressing plate in the upper end of first fixed base, second fixed base and make the pressing plate end head be located the upper end of workpiece main body, then the torsion wrench is covered in the outside of fastening nut and is screwed down, thereby making first fixed base, second fixed base, pressing plate and limiting plate cooperation work and restrict workpiece main body, the elastic locking mechanism of preset torque value built -in in torsion wrench, and the torsion wrench reaches preset torque and will automatically leak force when operating, thereby ensuring that locking force is accurate controllable, through the cooperation of first fixed base, second fixed base, limiting plate, pressing plate, fastening nut and torsion wrench, not only has promoted workpiece main body locking's efficiency and stability, but also has eradicated aluminium alloy overpressure deformation, thereby has improved the yield rate.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to a locking device for machining fixtures. Background Technology

[0002] A machining fixture locking device is a functional component used in machining processes to fix the workpiece or fixture body, ensuring the workpiece's stable position and preventing displacement during machining. Its core function is to apply sufficient clamping force to the workpiece through mechanical, hydraulic, pneumatic, or electric means to counteract external forces such as vibration and cutting forces during the cutting process, thereby ensuring machining accuracy (such as dimensional tolerances and geometric tolerances) and operational safety. This utility model of a machining fixture locking device is mainly composed of a first fixed seat, fixture body, limiting plate, second fixed seat, workpiece body, torque wrench, fastening nut, pressure plate, fixing plate, slot, placement slot, mounting slot, mounting box, protective pad, locking block, limiting knob, return spring, placement plate, limiting hole, and other components. Existing machining fixture locking devices have low locking efficiency, poor stability, and high scrap rate during use, so a new machining fixture locking device is essential. Utility Model Content

[0003] The purpose of this utility model is to provide a locking device for machining fixtures to solve the problems mentioned in the background art, such as low locking efficiency, poor stability and high scrap rate of existing locking devices for machining fixtures.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a locking device for machining fixtures, comprising...

[0005] The fixture body and the fixing plates located at the left and right ends of the fixture body;

[0006] A first fixing seat and a second fixing seat are respectively installed on the upper left and right sides of the main body of the fixture and on the inner wall of the fixing plate. A pressure plate is installed at the upper end of the first fixing seat and the second fixing seat.

[0007] A fastening nut is installed inside the first fixing seat and the second fixing seat and at the position inside the pressure plate, and a torque wrench is provided at the upper outer position of the fastening nut;

[0008] The workpiece body is installed inside the first and second fixing seats and above the fixture body. A limiting plate is installed at the upper end of the fixture body and on the front and rear sides of the workpiece body.

[0009] By using the first fixed seat, the second fixed seat, the limiting plate, the pressure plate, the fastening nut and the torque wrench together, not only is the efficiency and stability of locking the workpiece body improved, but also the overpressure deformation of the aluminum alloy is eliminated, thereby improving the yield rate.

[0010] Preferably, a mounting groove is provided at the inner end of the pressure plate, and a reset spring is installed at the bottom of the mounting groove.

[0011] Preferably, a placement plate is connected inside the mounting groove and at the upper end of the return spring, and a mounting box is placed inside the mounting groove and at the upper end of the placement plate.

[0012] Preferably, a placement groove is provided at the lower end of the mounting box, and a protective pad is glued to the inside of the placement groove. The protective pad is made of rubber material.

[0013] Preferably, the mounting groove is provided with a slot on the front and rear walls, and a locking block is connected to the inner side of the slot and located on the front and rear sides of the mounting box. The locking block and the slot are connected by a snap-fit ​​mechanism.

[0014] Preferably, a limiting hole is provided at the end of the pressure plate and at the inner position of the outer wall of the mounting box, and an internal thread is provided at the inner wall position of the limiting hole.

[0015] Preferably, a limiting knob is installed inside the limiting hole and at the position on the outer wall of the pressure plate end, and the outer wall of the knob is provided with an external thread.

[0016] Preferably, the limiting knob is connected to the internal thread of the limiting hole via the external thread on the outer wall, thereby fixing the mounting box inside the placement groove. This allows the protective pad to be installed at the lower end of the pressure plate. Through the combined use of the placement groove, mounting groove, slot, locking block, return spring, placement plate, limiting knob, and limiting hole, the stability of the mounting box placement and the ease of retrieval are enhanced. The protective pad further enhances the stability and protection of the workpiece body.

[0017] Compared with the prior art, the present invention provides a locking device for machining fixtures, which has the following beneficial effects:

[0018] 1. In this machining fixture locking device, when using the machining fixture locking device, the main body of the workpiece is first placed inside the first fixed seat and the second fixed seat and locked inside the limiting plate. Then, the pressure plate is placed on the upper end of the first fixed seat and the second fixed seat, so that the end of the pressure plate is located at the upper end of the workpiece. Next, the fastening nut is inserted into the connecting hole inside the first fixed seat, the second fixed seat and the pressure plate. Then, the torque wrench is placed on the outside of the fastening nut and tightened. Thus, the first fixed seat, the second fixed seat, the pressure plate and the limiting plate work together to restrict the main body of the workpiece. The torque wrench has a built-in elastic locking mechanism with a preset torque value. During operation, the torque wrench will automatically release the force when the preset torque is reached, thereby ensuring that the locking force is accurate and controllable. Through the coordinated use of the first fixed seat, the second fixed seat, the limiting plate, the pressure plate, the fastening nut and the torque wrench, not only is the efficiency and stability of locking the main body of the workpiece improved, but also the overpressure deformation of the aluminum alloy is prevented, thereby improving the yield rate.

[0019] 2. In this machining fixture locking device, when using the machining fixture locking device, first, glue the protective pad to the placement groove inside the lower end of the mounting box. Then, insert the mounting box into the mounting groove, and make the locking block engage with the groove. Next, push the mounting box upwards so that the limiting hole inside the outer wall of the mounting box aligns with the limiting hole inside the outer wall of the pressure plate end. Then, insert the limiting knob into the limiting hole. The limiting knob is connected to the internal thread of the limiting hole through the external thread of the outer wall, thereby fixing the mounting box inside the placement groove. This allows the protective pad to be installed at the lower end of the pressure plate end. When the pressure plate end is located above the workpiece body and is aligned with the workpiece body... When the workpiece is being squeezed, the lower end of the pressure plate is protected by a rubber material, which not only increases the friction between the pressure plate and the workpiece but also protects the workpiece. When the mounting box needs to be removed, the limiting knob is loosened, the pressure of the return spring inside the mounting slot is reduced, and it will squeeze downward, thus pushing the mounting box downward. Then the mounting box can be removed. Through the coordinated use of the placement slot, mounting slot, card slot, card block, return spring, placement plate, limiting knob, and limiting hole, the stability of the mounting box placement and the ease of removal are enhanced. The protective pad further enhances the stability and protection of the workpiece. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the locking device for machining fixtures of this utility model.

[0021] Figure 2 This is an enlarged structural diagram of the back of the pressure plate of the locking device for the machining fixture of this utility model.

[0022] Figure 3 This is an enlarged cross-sectional schematic diagram of the pressure plate of the locking device for the machining fixture of this utility model.

[0023] In the diagram: 1. First fixed seat; 2. Fixture body; 3. Limiting plate; 4. Second fixed seat; 5. Workpiece body; 6. Torque wrench; 7. Fastening nut; 8. Pressure plate; 9. Fixing plate; 10. Slot; 11. Placement slot; 12. Mounting slot; 13. Mounting box; 14. Protective pad; 15. Locking block; 16. Limiting knob; 17. Return spring; 18. Placement plate; 19. Limiting hole. Detailed Implementation

[0024] 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.

[0025] This utility model provides, for example Figure 1-3 The machining fixture locking device shown includes a fixture body 2 and fixing plates 9 located at the left and right ends of the fixture body 2. A first fixing seat 1 and a second fixing seat 4 are respectively installed on the upper left and right sides of the fixture body 2, located on the inner walls of the fixing plates 9. A pressure plate 8 is installed at the upper ends of the first fixing seat 1 and the second fixing seat 4. A fastening nut 7 is installed inside the first fixing seat 1 and the second fixing seat 4, located inside the pressure plate 8. A torque wrench 6 is located at the upper outer end of the fastening nut 7. A workpiece body 5 is installed on the inner side of the first fixing seat 1 and the second fixing seat 4, located above the fixture body 2. A limiting plate 3 is installed at the upper end of the fixture body 2, located on the front and rear sides of the workpiece body 5. Through the coordinated use of the first fixing seat 1, the second fixing seat 4, the limiting plate 3, the pressure plate 8, the fastening nut 7, and the torque wrench 6, not only is the locking efficiency and stability of the workpiece body 5 improved, but overpressure deformation of the aluminum alloy is also prevented, thereby improving the yield rate.

[0026] like Figure 1As shown, in order to improve the efficiency and stability of locking the workpiece body 5 and increase the overall yield of the workpiece 5, when using the machining fixture locking device, the workpiece body 5 is first placed inside the first fixed seat 1 and the second fixed seat 4 and locked inside the limiting plate 3. Then, the placement pressure plate 8 is placed on the upper end of the first fixed seat 1 and the second fixed seat 4, so that the end of the pressure plate 8 is located at the upper end of the workpiece body 5. Next, the fastening nut 7 is inserted into the connecting hole inside the first fixed seat 1, the second fixed seat 4 and the pressure plate 8. Then, the torque wrench 6 is put on the fastening nut 7. Externally, the components are tightened, allowing the first fixed seat 1, the second fixed seat 4, the pressure plate 8, and the limiting plate 3 to work together to restrain the workpiece body 5. The torque wrench 6 has a built-in elastic locking mechanism with a preset torque value. During operation, the torque wrench 6 will automatically release force when the preset torque is reached, thus ensuring that the tightening force is precise and controllable. Through the combined use of the first fixed seat 1, the second fixed seat 4, the limiting plate 3, the pressure plate 8, the fastening nut 7, and the torque wrench 6, not only is the efficiency and stability of locking the workpiece body 5 improved, but also the overpressure deformation of the aluminum alloy is prevented, thereby improving the yield rate.

[0027] An installation groove 12 is provided inside the end of the pressure plate 8. A return spring 17 is installed at the bottom of the installation groove 12. A placement plate 18 is connected inside the installation groove 12 and above the return spring 17. An installation box 13 is placed inside the installation groove 12 and above the placement plate 18. An installation groove 11 is provided inside the lower end of the installation box 13. A protective pad 14, made of rubber, is glued to the inside of the placement groove 11. A locking groove 10 is provided on the front and rear walls of the installation groove 12. A locking block 15 is connected to the inside of the locking groove 10 and on the front and rear sides of the installation box 13. The locking block 15 is connected to the locking groove 10 by a locking mechanism. The pressure plate 8 end and the inner wall of the installation box 13 are connected by a locking mechanism. A limiting hole 19 is provided at the placement position. An internal thread is provided on the inner wall of the limiting hole 19. A limiting knob 16 is installed inside the limiting hole 19 and on the outer wall of the end of the pressure plate 8. An external thread is provided on the outer wall of the knob. The limiting knob 16 is connected to the internal thread on the inner wall of the limiting hole 19 through the external thread on the outer wall, thereby fixing the mounting box 13 inside the placement groove 11. This allows the protective pad 14 to be installed at the lower end of the end of the pressure plate 8. Through the coordinated use of the placement groove 11, mounting groove 12, slot 10, locking block 15, return spring 17, placement plate 18, limiting knob 16 and limiting hole 19, the stability of the mounting box 13 and the ease of handling are enhanced. The setting of the protective pad 14 enhances the stability and protection of the workpiece body 5.

[0028] like Figure 1 , Figure 2 and Figure 3As shown, to enhance the stability and protection of the workpiece body 5, when using the machining fixture locking device, firstly, the protective pad 14 is glued to the placement groove 11 inside the lower end of the mounting box 13. Then, the mounting box 13 is inserted into the mounting groove 12, and the locking block 15 is engaged in the locking groove 10. Next, the mounting box 13 is pushed upward, so that the limiting hole 19 inside the outer wall of the mounting box 13 is aligned with the limiting hole 19 inside the outer wall of the pressure plate 8. Then, the limiting knob 16 is inserted into the limiting hole 19. The limiting knob 16 is connected to the internal thread of the limiting hole 19 through the external thread of the outer wall, thereby fixing the mounting box 13 inside the placement groove 11. This allows the protective pad 14 to be installed at the lower end of the pressure plate 8. When the pressure plate 8 is located at the upper end of the workpiece body 5... Furthermore, when the workpiece body 5 is squeezed, the lower end of the pressure plate 8 is made of rubber material, which not only increases the friction between the pressure plate 8 and the workpiece body 5, but also protects the workpiece body 5. When the mounting box 13 needs to be removed, the limiting knob 16 is loosened, the pressure of the return spring 17 inside the mounting groove 12 is reduced and it will squeeze downward, thereby pushing the mounting box 13 downward. Then the mounting box 13 can be removed. Through the coordinated use of the placement groove 11, mounting groove 12, card slot 10, card block 15, return spring 17, placement plate 18, limiting knob 16 and limiting hole 19, the stability of the mounting box 13 is enhanced and the ease of removal is improved. The setting of the protective pad 14 enhances the stability and protection of the workpiece body 5.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking device for machining fixtures, characterized in that: include The fixture body (2) and the fixing plates (9) located at the left and right ends of the fixture body (2); The upper left and right sides of the main body (2) of the fixture are respectively equipped with a first fixing seat (1) and a second fixing seat (4) located on the inner wall of the fixing plate (9). A pressure plate (8) is installed at the upper end of the first fixing seat (1) and the second fixing seat (4). A fastening nut (7) is installed inside the first fixing seat (1) and the second fixing seat (4) and at the position inside the pressure plate (8). A torque wrench (6) is provided at the upper outer position of the fastening nut (7). The workpiece body (5) is installed inside the first fixing seat (1) and the second fixing seat (4) and above the fixture body (2). A limiting plate (3) is installed at the upper end of the fixture body (2) and at the front and rear sides of the workpiece body (5). By using the first fixed seat (1), the second fixed seat (4), the limiting plate (3), the pressure plate (8), the fastening nut (7) and the torque wrench (6) together, not only is the efficiency and stability of locking the workpiece body (5) improved, but also the overpressure deformation of the aluminum alloy is eliminated, thereby improving the yield rate.

2. The locking device for a machining fixture according to claim 1, characterized in that: An installation groove (12) is provided at the inner end of the pressure plate (8), and a reset spring (17) is installed at the bottom of the installation groove (12).

3. The locking device for a machining fixture according to claim 2, characterized in that: A placement plate (18) is connected inside the mounting groove (12) and at the upper end of the return spring (17), and a mounting box (13) is placed inside the mounting groove (12) and at the upper end of the placement plate (18).

4. A locking device for a machining fixture according to claim 3, characterized in that: The mounting box (13) has a placement groove (11) at the lower end of its interior. A protective pad (14) is glued to the interior of the placement groove (11). The protective pad (14) is made of rubber material.

5. A locking device for a machining fixture according to claim 3, characterized in that: The mounting groove (12) has a slot (10) on its front and back walls. A locking block (15) is connected to the inside of the slot (10) and on the front and back sides of the mounting box (13). The locking block (15) is connected to the slot (10) by a locking mechanism.

6. A locking device for a machining fixture according to claim 2, characterized in that: A limiting hole (19) is provided at the end of the pressure plate (8) and at the inner position of the outer wall of the mounting box (13), and an internal thread is provided at the inner wall position of the limiting hole (19).

7. A locking device for a machining fixture according to claim 6, characterized in that: A limiting knob (16) is installed inside the limiting hole (19) and on the outer wall of the end of the pressure plate (8). The outer wall of the knob is provided with an external thread.

8. A locking device for a machining fixture according to claim 7, characterized in that: The limiting knob (16) is connected to the internal thread of the limiting hole (19) through the external thread of the outer wall, thereby fixing the mounting box (13) inside the placement groove (11), and thus allowing the protective pad (14) to be installed at the lower end of the pressure plate (8). Through the combined use of the placement groove (11), mounting groove (12), card slot (10), card block (15), return spring (17), placement plate (18), limiting knob (16) and limiting hole (19), the stability of the mounting box (13) and the ease of picking it up are enhanced, while the setting of the protective pad (14) enhances the stability and protection of the workpiece body (5).

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