Fixed-distance elastic locking cap
By introducing the design of disc springs and compression washers in the fixture, adaptive adjustment of the torsional force is achieved, solving the problem of pressure plate deformation caused by excessive torsional force in traditional fixtures and ensuring stable clamping of the workpiece.
Patent Information
- Application Number
- CN202423246043.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional clamps are prone to deformation of the pressure plate under the action of torsional force, affecting the stable clamping of the workpiece.
A fixed-distance elastic locking cap is designed. By setting a disc spring and a compression gasket in the cap body, the elastic part can adaptively adjust the torsional force to avoid excessive squeezing of the pressure plate and achieve stable clamping.
Ensure stable clamping of the workpiece, avoid deformation of the pressure plate when the torsional force is too large, and improve the stability of the fixture and the fixing effect of the workpiece.
Smart Images
Figure CN223447446U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to screw and cap technical field, concretely is a fixed distance elastic locking and cap. BACKGROUND
[0002] In the mechanical manufacturing process, fixtures are usually used to fix workpieces to accept processing, and generally a specific structure of fixture is designed according to the specific shape of the workpiece. The traditional fixture is a way of using bolts to sequentially penetrate gaskets and pressure plates, and then extruding the pressure plate by screwing and clamping the cap to lock the workpiece. In the actual use process, the extrusion of the screw and cap on the pressure plate is affected by the size of the torque, and for pressure plates of different thicknesses, if the torque is too large, the screw and cap will excessively extrude the pressure plate, which may cause the pressure plate to deform and affect the stable clamping of the workpiece. Therefore, it is necessary to design a fixed distance elastic locking cap that can adapt to the torque. SUMMARY
[0003] The utility model discloses a fixed distance elastic locking cap to solve the problems raised in the background art.
[0004] To achieve the above object, the utility model provides the following technical scheme: a fixed distance elastic locking cap, including cap body, pressure pad and the threaded stud that is arranged with cap body, the bottom of cap body is equipped with installation groove, pressure pad is arranged in installation groove slidingly, the cavity is equipped in cap body, the cavity communicates with installation groove, the inner end surface of pressure pad is connected with cap body through elastic part, and the outer end surface abuts with pressure plate, one end of elastic part is connected with the inner wall of cavity away from pressure pad, the middle part of pressure pad is equipped with the through hole that cooperates with threaded stud, threaded stud extends to the internal thread groove in pressure pad and elastic part.
[0005] In the application scheme, the elastic part is a disc spring, one end of the disc spring is connected with the inner wall of the cavity, and the other end abuts with the inner end surface of the pressure pad.
[0006] In the application scheme, the pressure pad is provided with a sliding block on both sides of one end located in the installation groove, and the other end of the sliding block is slidingly connected with the installation groove. By setting the sliding block, the pressure pad and the installation groove are slidingly connected, the sliding contact surface is reduced, and the frictional resistance is reduced.
[0007] In the application scheme, the threaded stud includes an upper threaded segment, a connecting segment and a lower threaded segment arranged in sequence, the upper threaded segment corresponds to the internal thread groove, and the lower threaded segment is used for connecting and fixing the threaded stud with the workpiece processing table.
[0008] The following improvement is made in the scheme: an arc-shaped groove with a diameter matched with the connecting section is formed on the pressing plate, and a first abutting table is sleeved on the connecting section.
[0009] The following improvement is made in the scheme: a second abutting table is sleeved on the connecting section at the connecting position of the lower threaded section. The connecting height of the stud and the workpiece processing table is limited by the cooperation of the lower threaded section and the second abutting table, so that the lower end surface of the pressing plate abuts against the top end of the workpiece, so as to be clamped.
[0010] Compared with the prior art, the utility model provides a kind of fixed distance elastic locking and cap, with following
[0011] Beneficial effects:
[0012] The utility model discloses a cooperation between the pressing gasket and the disc spring, and a certain elastic space is arranged between the cap body and the pressing plate, so that the cap body has the function of self-adapting adjustment to the rotation torque, when the screw cap is moved downward, the cap body extrudes the disc spring, and then the disc spring provides the clamping force to the workpiece to the pressing plate through the pressing gasket, so that the clamping force requirement of the workpiece is stably guaranteed, and the problem of excessive extrusion of the screw cap to the pressing plate to cause the deformation of the pressing plate when the rotation torque is too large is avoided, to ensure the stable clamping of the workpiece. DETAILED DESCRIPTION
[0013] Figure 1 It is the structural schematic diagram of the utility model;
[0014] Figure 2 It is the side view of the utility model;
[0015] Figure 3 It is the sectional view of the utility model.
[0016] In the drawing: 1, cap body;11, installation groove;12, cavity;13, internal thread groove;2, pressing gasket;21, through hole;22, sliding block;3, stud;31, upper threaded section;32, connecting section;33, lower threaded section;34, first abutting table;35, second abutting table;4, elastic member;5, pressing plate;51, arc-shaped groove. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiments of the utility model will be described below with reference to the drawings in the embodiments of the utility model:
[0018] As Figures 1-2As shown in the figure, a kind of fixed distance elastic locking and cap is mainly composed of cap body 1, compression gasket 2 and stud 3 matched with cap body 1, wherein cap body 1 adopts hexagonal shape;Cap body 1 bottom is provided with mounting groove 11, and compression gasket 2 top end two sides are provided with sliding block 22, and the end of sliding block 22 away from compression gasket 2 is slidably connected with mounting groove 11;Cap body 1 is provided with cavity 12, and cavity 12 is communicated with mounting groove 11, the inner end surface of compression gasket 2 is connected with cap body 1 by elastic element 4, and outer end surface is abutted with pressing plate 5, and the elastic element 4 is disc spring, one end of disc spring is connected with cavity 12 inner wall, and the other end is abutted with the inner end surface of compression gasket 2;Cap body 1 is also provided with internal thread groove 13, and internal thread groove 13 is communicated with cavity 12, and the middle part of compression gasket 2 is provided with through hole 21 matched with stud 3, and stud 3 extends to internal thread groove 13 through compression gasket 2 and disc spring.
[0019] As Figure 3 shown, stud 3 includes upper threaded section 31, connecting section 32 and lower threaded section 33 arranged in sequence, upper threaded section 31 is matched with internal thread groove 13, lower threaded section 33 is used to connect and fix stud 3 with workpiece machining table, arc-shaped groove 51 matched with the diameter of connecting section 32 is formed in pressing plate 5, first abutting table 34 is sleeved on connecting section 32, and second abutting table 35 is sleeved on the connecting portion of connecting section 32 and lower threaded section 33.
[0020] Working principle: first, stud 3 is fixed on workpiece machining table through lower threaded section 33, then the lower end surface of pressing plate 5 is attached to the top end of first abutting table 34 on stud 3, and pressing plate 5 is clamped on stud 3 along arc-shaped groove 51, then compression gasket 2 is sleeved on stud 3 and located at the top end of pressing plate 5, finally cap body 1 with disc spring is sleeved on stud 3, cap body 1 is rotated to move towards compression gasket 2 and pressing plate 5, cap body 1 extrudes disc spring, and then disc spring provides clamping force to workpiece through compression gasket 2 to pressing plate 5.
[0021] The above embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.
Claims
1. A fixed distance elastic locking cap, characterized by: The invention comprises a cap body (1), a compression gasket (2) and a stud (3) arranged in cooperation with the cap body (1); a mounting groove (11) is provided at the bottom of the cap body (1); the compression gasket (2) is slidably arranged in the mounting groove (11); a cavity (12) is provided in the cap body (1); the cavity (12) is communicated with the mounting groove (11); the inner end face of the compression gasket (2) is connected to the cap body (1) through an elastic member (4); and the outer end face is in contact with the pressure plate (5). One end of the elastic member (4) away from the compression gasket (2) is connected to the inner wall of the cavity (12); an internal thread groove (13) matching the external thread on the stud (3) is further provided in the cap body (1); the internal thread groove (13) is communicated with the cavity (12); a through hole (21) matching the stud (3) is provided in the middle of the compression gasket (2); the stud (3) passes through the compression gasket (2) and the elastic member (4) and extends into the internal thread groove (13).
2. The fixed distance elastic locking cap according to claim 1, characterized in that: The elastic member (4) is a disc spring, one end of which is connected to the inner wall of the cavity (12), and the other end of which is in contact with the inner end surface of the compression gasket (2).
3. The fixed distance elastic locking cap according to claim 1, characterized in that: Slide blocks (22) are provided on both sides of one end of the compression gasket (2) located in the installation groove (11), and the end of the slide block (22) away from the compression gasket (2) is slidably connected to the installation groove (11).
4. The fixed distance elastic locking cap according to claim 1, characterized in that: The stud (3) comprises an upper threaded section (31), a connecting section (32) and a lower threaded section (33) which are arranged in sequence; the upper threaded section (31) corresponds to the internal threaded groove (13); and the lower threaded section (33) is used to connect and fix the stud (3) to the workpiece processing table.
5. The fixed distance elastic locking cap according to claim 4, characterized in that: The pressing plate (5) is provided with an arc-shaped groove (51) matching the diameter of the connecting section (32), and the connecting section (32) is sleeved with a first abutting platform (34).
6. The fixed distance elastic locking cap according to claim 5, characterized in that: A second abutment platform (35) is sleeved on the connection between the connecting section (32) and the lower threaded section (33).