Clamping jig for precision part machining

Abstract

The clamping jig comprises a base, a limiting frame fixedly connected to the top of the base, and a workpiece body arranged at the top of the limiting frame in a penetrating mode, longitudinal clamping mechanisms are fixedly connected to the two sides of the limiting frame, each longitudinal clamping mechanism comprises an L-shaped plate, a motor is fixedly connected to the top of each L-shaped plate, and the limiting frame is fixedly connected with the limiting frame. The output end of the motor is fixedly connected with a screw rod, the surface of the screw rod is in threaded connection with a thread sleeve, the front face and the back face of the thread sleeve are fixedly connected with protruding plates, the tops of the protruding plates are fixedly connected with vertical plates, the tops of the inner sides of the vertical plates are fixedly connected with a first flat plate, and the bottom of the first flat plate is fixedly connected with a spring. According to the clamping jig, the phenomenon that in the prior art, clamping efficiency is too low, and sequential single-direction clamping is needed is changed, the second flat plate and the side clamping plate are adopted for one-time rapid all-direction clamping, the clamping efficiency cannot be delayed, and the follow-up machining progress cannot be affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of precision part processing, specifically a clamping fixture for precision part processing. BACKGROUND

[0002] According to the patent disclosed by China patent network, the patent name is: a quick clamping fixture for precision part processing, the patent application number is: 202123425853.4, including frame, horizontal installation on the base plate of frame, a plurality of interval set on the chuck of base plate and the cylinder below base plate, chuck further includes: fixedly installed on the upper surface of support seat and a plurality of set on the upper surface of support seat clamping petal, the upper end has the outer flange of screw rod lower end in turn through clamping area, support seat and base plate and is connected with a nut through screw thread, the lower end surface of outer flange of screw rod is in contact with the upper end surface of inner flange of clamping petal, a spring piece in extrusion state is arranged between the nut and the lower surface of base plate, the lower surface of the push plate horizontally arranged below base plate is connected with the piston rod of cylinder, the lower surface of support seat and located below a plurality of clamping petal opens a second groove. The utility model further increases the stability, balance of the force exerted on the corresponding clamping petal by each screw rod under the action of spring piece, and has certain elasticity simultaneously;The clamping fixture in the above-mentioned is single direction in turn when clamping workpiece in multidirectional clamping, cannot be clamped comprehensively at one time, which greatly delays the clamping efficiency, and also affects the subsequent processing progress.

[0003] Therefore, it is necessary to design and reform the clamping fixture, effectively prevent the phenomenon that the clamping efficiency is too slow. UTILITY MODEL CONTENTS

[0004] In order to solve the problems in the above background art, the purpose of the utility model is to provide a clamping fixture for precision part processing, which has the advantages of fast and comprehensive clamping, and solves the problem of slow clamping efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a clamping fixture for precision part processing, comprising a base;

[0006] The limiting frame is fixedly connected to the top of the base;

[0007] The workpiece body is arranged through the top of the limiting frame;

[0008] Both sides of the limiting frame are fixedly connected with longitudinal clamping mechanisms, the longitudinal clamping mechanism comprises an L-shaped plate, the top of the L-shaped plate is fixedly connected with a motor, the output end of the motor is fixedly connected with a screw rod, the surface of the screw rod is threadedly connected with a screw sleeve, the front surface and the back surface of the screw sleeve are fixedly connected with convex plates, the top of the convex plate is fixedly connected with a vertical plate, the top of the inner side of the vertical plate is fixedly connected with a first flat plate, the bottom of the first flat plate is fixedly connected with a spring, the bottom of the spring is fixedly connected with a second flat plate, and the bottom of the second flat plate is in contact with the workpiece body.

[0009] As preferred in the utility model, the bottom of the surface of the screw rod is sleeved with a side clamping mechanism, the side clamping mechanism comprises a gear ring, both sides of the gear ring are provided with gear plates, the inner side of the gear plate is engaged with the gear ring, the bottom of the gear plate is fixedly connected with a sliding plate, the bottom of the sliding plate is slidingly connected with the L-shaped plate, the outer side of the top of the gear plate is fixedly connected with an extension plate one, the outer side of the top of the extension plate one is fixedly connected with a vertical plate, the top of the inner side of the vertical plate is fixedly connected with an extension plate two, the inner side of the extension plate two is fixedly connected with a side clamping plate, and the inner side of the side clamping plate is in contact with the workpiece body.

[0010] As preferred in the utility model, the outer side of the sliding plate is fixedly connected with a limiting mechanism, the limiting mechanism comprises a limiting pin, the surface of the limiting pin is sleeved with a limiting frame, and the front side and the back side of the bottom of the limiting frame are fixedly connected with lower blocks.

[0011] As preferred in the utility model, the front side and the back side of the top of the L-shaped plate are provided with a groove, and the bottom of the sliding plate is slidingly connected in the groove.

[0012] As preferred in the utility model, the inner side of the convex plate is fixedly connected with an auxiliary plate, and the inner side of the auxiliary plate is slidingly connected with the L-shaped plate.

[0013] As preferred in the utility model, the front side and the back side of the outer side of the L-shaped plate are provided with a vertical groove, and the inner side of the auxiliary plate is slidingly connected in the vertical groove.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] 1、The utility model discloses a clamping jig changes the phenomenon that traditional clamping efficiency is too slow and needs to be clamped in turn in one direction, adopts a first flat plate and a side clamping plate to carry out one-time fast all -round clamping, so that the clamping efficiency is not delayed, and the subsequent processing progress is not affected.

[0016] 2、Through the setting of the side clamping mechanism, the side of the workpiece body can be clamped quickly, and the stability of the workpiece body is improved.

[0017] 3、 The utility model discloses through the setting of limiting mechanism, can make the more stable movement of sliding plate, and the trajectory of sliding plate has been limited effect to the movement.

[0018] 4、 The utility model discloses through the setting of strip groove, can make the more fluent sliding of sliding plate in the inside of L type board, has reduced the friction between sliding plate and L type board, has prolonged the service life of sliding plate.

[0019] 5、 The utility model discloses through the setting of auxiliary plate, can make the more stable movement of convex board, and the movement position of convex board is limited effect.

[0020] 6、 The utility model discloses through the setting of vertical slot, can make the more fluent sliding of auxiliary plate in the inside of L type board, has increased its operating stability. ACCURACY

[0021] Figure 1 It is structure schematic drawing of the utility model;

[0022] Figure 2 It is structure drawing of longitudinal clamping mechanism, side clamping mechanism and limiting mechanism of the utility model;

[0023] Figure 3 It is structure of the utility model Figure 2 Amplification structure drawing of place A in the structure;

[0024] Figure 4 It is partial structure perspective drawing of the utility model.

[0025] In the drawing: 1, base;2, limit frame;3, workpiece body;4, longitudinal clamping mechanism;5, L type board;6, motor;7, screw;8, screw sleeve;9, convex board;10, vertical board;11, flat plate one;12, spring;13, flat plate two;14, side clamping mechanism;15, gear ring;16, toothed plate;17, sliding plate;18, extension plate one;19, vertical plate;20, extension plate two;21, side clamping plate;22, limiting mechanism;23, limiting pin;24, limit frame;25, lower block;26, strip groove;27, auxiliary plate;28, vertical slot. SPECIFIC IMPLEMENTATION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the range of protection of the utility model.

[0027] As Figures 1 to 4 The utility model discloses a kind of clamping fixtures for precision parts processing, including base 1.

[0028] The limiting frame 2 is fixedly connected to the top of the base 1;

[0029] The workpiece body 3 is set through the top of the limiting frame 2;

[0030] Both sides of the limiting frame 2 are fixedly connected to the longitudinal clamping mechanism 4. The longitudinal clamping mechanism 4 includes an L-shaped plate 5. The top of the L-shaped plate 5 is fixedly connected to the motor 6. The output end of the motor 6 is fixedly connected to the screw 7. The surface of the screw 7 is threadedly connected to the screw sleeve 8. The front and back of the screw sleeve 8 are fixedly connected to the protruding plate 9. The top of the protruding plate 9 is fixedly connected to the vertical plate 10. The top of the inner side of the vertical plate 10 is fixedly connected to the flat plate 11. The bottom of the flat plate 11 is fixedly connected to the spring 12. The bottom of the spring 12 is fixedly connected to the flat plate 2 13. The bottom of the flat plate 2 13 is in contact with the workpiece body 3.

[0031] refer to Figure 1 and Figure 2 A side clamping mechanism 14 is sleeved on the bottom of the surface of the screw 7. The side clamping mechanism 14 includes a gear ring 15. Gear plates 16 are provided on both sides of the gear ring 15. The inner side of the gear plate 16 meshes with the gear ring 15. A slide plate 17 is fixedly connected to the bottom of the gear plate 16. The bottom of the slide plate 17 is slidably connected to the L-shaped plate 5. An extension plate 18 is fixedly connected to the outer side of the gear plate 16. A longitudinal plate 19 is fixedly connected to the outer side of the top of the extension plate 18. An extension plate 20 is fixedly connected to the top of the inner side of the longitudinal plate 19. A side clamping plate 21 is fixedly connected to the inner side of the extension plate 20. The inner side of the side clamping plate 21 is in contact with the workpiece body 3.

[0032] As a technical optimization of this utility model, the side clamping mechanism 14 enables the quick clamping of the side of the workpiece body 3, thereby increasing the stability of the workpiece body 3.

[0033] refer to Figure 1 and Figure 2 A limiting mechanism 22 is fixedly connected to the outer side of the slide plate 17. The limiting mechanism 22 includes a limiting pin 23. A limiting frame 24 is sleeved on the surface of the limiting pin 23. A lower block 25 is fixedly connected to the front and rear sides of the bottom of the limiting frame 24. The bottom of the lower block 25 is fixedly connected to the L-shaped plate 5.

[0034] As a technical optimization of this utility model, the setting of the limiting mechanism 22 enables the skateboard 17 to move more stably, and at the same time, it limits the movement trajectory of the skateboard 17.

[0035] refer to Figure 2 The front and rear sides of the top of the L-shaped plate 5 are provided with grooves 26, and the bottom of the slide plate 17 is slidably connected to the inside of the grooves 26.

[0036] As a technical optimization of this utility model, the groove 26 enables the skateboard 17 to slide more smoothly inside the L-shaped plate 5, reducing the friction between the skateboard 17 and the L-shaped plate 5 and extending the service life of the skateboard 17.

[0037] refer to Figure 3 An auxiliary plate 27 is fixedly connected to the inner side of the convex plate 9, and the inner side of the auxiliary plate 27 is slidably connected to the L-shaped plate 5.

[0038] As a technical optimization of this utility model, by setting the auxiliary plate 27, the convex plate 9 can move more stably, while limiting the movement position of the convex plate 9.

[0039] refer to Figure 2 Vertical grooves 28 are provided on the front and rear sides of the outer side of the L-shaped plate 5, and the inner side of the auxiliary plate 27 is slidably connected to the inside of the vertical grooves 28.

[0040] As a technical optimization of this utility model, the setting of the vertical groove 28 enables the auxiliary plate 27 to slide more smoothly inside the L-shaped plate 5, thereby increasing its operational stability.

[0041] The working principle and usage process of this utility model are as follows: First, the user places the workpiece body 3 inside the limiting frame 2, and then starts the motor 6. The output end of the motor 6 drives the screw 7 to rotate, the screw 7 drives the screw sleeve 8 to move downward, the screw sleeve 8 drives the convex plate 9 and the vertical plate 10 to move downward, and the vertical plate 10 drives the flat plate 11, the spring 12 and the flat plate 23 to move downward, so that the flat plate 23 fits against the top of the workpiece body 3. Then, while the screw 7 rotates, the gear ring 15 rotates, the gear ring 15 drives the gear plate 16 to move inward, the gear plate 16 moves inward in conjunction with the sliding plate 17, the gear plate 16 drives the extension plate 18, the vertical plate 19 and the extension plate 20 to move inward, and the extension plate 20 drives the side clamping plate 21 to move inward, so that the side clamping plate 21 clamps the side of the workpiece body 3, thereby achieving the effect of quick and comprehensive clamping.

[0042] In summary, this clamping fixture for precision parts machining changes the traditional slow clamping process that requires sequential unidirectional clamping. By using a flat plate 23 and a side clamping plate 21 for one-time, rapid, all-around clamping, it avoids delaying clamping efficiency and does not affect subsequent machining progress.

[0043] 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.

[0044] 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 clamping fixture for precision parts machining, comprising a base (1); A limiting frame (2) is fixedly connected to the top of the base (1); The workpiece body (3) is set through the top of the limiting frame (2); Its features are: Both sides of the limiting frame (2) are fixedly connected to a longitudinal clamping mechanism (4). The longitudinal clamping mechanism (4) includes an L-shaped plate (5). A motor (6) is fixedly connected to the top of the L-shaped plate (5). A screw (7) is fixedly connected to the output end of the motor (6). A screw sleeve (8) is threadedly connected to the surface of the screw (7). A protruding plate (9) is fixedly connected to both the front and back of the screw sleeve (8). A vertical plate (10) is fixedly connected to the top of the protruding plate (9). A flat plate (11) is fixedly connected to the top of the inner side of the vertical plate (10). A spring (12) is fixedly connected to the bottom of the flat plate (11). A flat plate (13) is fixedly connected to the bottom of the spring (12). The bottom of the flat plate (13) is in contact with the workpiece body (3).

2. A clamping fixture for precision parts machining according to claim 1, characterized in that: A side clamping mechanism (14) is sleeved on the bottom of the surface of the screw (7). The side clamping mechanism (14) includes a gear ring (15). Both sides of the gear ring (15) are provided with gear plates (16). The inner side of the gear plates (16) meshes with the gear ring (15). A slide plate (17) is fixedly connected to the bottom of the gear plates (16). The bottom of the slide plate (17) is slidably connected to the L-shaped plate (5). An extension plate (18) is fixedly connected to the outer side of the gear plates (16). A longitudinal plate (19) is fixedly connected to the outer side of the top of the extension plate (18). An extension plate (20) is fixedly connected to the top of the inner side of the longitudinal plate (19). A side clamping plate (21) is fixedly connected to the inner side of the extension plate (20). The inner side of the side clamping plate (21) contacts the workpiece body (3).

3. A clamping fixture for precision parts machining according to claim 2, characterized in that: A limiting mechanism (22) is fixedly connected to the outside of the slide plate (17). The limiting mechanism (22) includes a limiting pin (23). A limiting frame (24) is sleeved on the surface of the limiting pin (23). A lower block (25) is fixedly connected to the front and rear sides of the bottom of the limiting frame (24). The bottom of the lower block (25) is fixedly connected to the L-shaped plate (5).

4. A clamping fixture for precision parts machining according to claim 2, characterized in that: The L-shaped plate (5) has grooves (26) on both the front and rear sides of its top, and the bottom of the sliding plate (17) is slidably connected to the inside of the grooves (26).

5. A clamping fixture for precision parts machining according to claim 1, characterized in that: An auxiliary plate (27) is fixedly connected to the inner side of the convex plate (9), and the inner side of the auxiliary plate (27) is slidably connected to the L-shaped plate (5).

6. A clamping fixture for precision parts machining according to claim 5, characterized in that: Vertical grooves (28) are provided on the front and rear sides of the outer side of the L-shaped plate (5), and the inner side of the auxiliary plate (27) is slidably connected to the inside of the vertical grooves (28).

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