Clamping jaw mechanism with automatic angle guide function

Abstract

The clamping jaw mechanism with the automatic angle guiding function comprises a fixing base, an angle guiding mechanism and an opening and closing clamping assembly, the angle guiding mechanism comprises a rotation control driving piece, a rotating disc and a hanging plate, the rotation control driving piece is fixedly arranged at the bottom of the fixing base, the rotating disc is rotationally arranged at the bottom end of the rotation control driving piece, and the opening and closing clamping assembly is arranged on the rotating disc. The hanging plate is fixedly connected with the rotating disc, and the opening and closing clamping assembly comprises two clamping jaws which are oppositely and movably arranged at the bottom of the hanging plate. When a workpiece is clamped through the clamping jaws, the rotating disc rotates relatively to control the driving piece to be in a free rotating state, when the clamping jaws make contact with the side face of the inclined workpiece, the contact between the inner sides of the clamping jaws and the workpiece is point contact or line contact, the clamping jaws can automatically deflect along with the workpiece in the continuous clamping process, and the workpiece is kept still; and the workpiece does not need to be forcibly displaced through the clamping jaw, and the workpiece is clamped after being guided, so that the surface of the workpiece is prevented from being abraded, and dust is prevented from being generated by friction.

Description

Technical Field

[0001] The utility model relates to the technical field of grabbing devices, in particular to a clamping claw mechanism with an automatic angle correction function. Background Art

[0002] During the process of machining workpieces, when the side of the clamped workpiece is not parallel to the side of the clamping jaws, that is, when the side of the workpiece and the side of the clamping jaws have a certain inclination angle, the workpiece will be forced to be corrected or displaced when the ordinary clamping jaws clamp the workpiece from both sides, so that the inner side of the clamping jaws can be aligned and stably clamped on both sides of the workpiece. During the process of the workpiece being forced to correct, the workpiece will be subjected to relative movement due to the force, making the surface of the workpiece in contact with other devices easy to be worn and generate dust due to friction, especially the bottom surface of the workpiece is the most seriously worn. Utility Model Content

[0003] The utility model aims to provide a clamping jaw mechanism with an automatic angle correction function to solve the problem of easy wear and dust generation on the workpiece surface proposed in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A clamping jaw mechanism with automatic angle correction function is used to clamp a workpiece, comprising a fixed seat, an angle correction mechanism and an opening and closing clamping assembly, wherein the angle correction mechanism comprises a rotation control driving member, a turntable and a hanging plate, the rotation control driving member is fixedly arranged at the bottom of the fixed seat, the turntable is rotatably arranged at the bottom end of the rotation control driving member, the hanging plate is fixedly connected to the turntable, and the opening and closing clamping assembly comprises two clamping jaws which are relatively and movably arranged at the bottom of the hanging plate.

[0006] Preferably, a slide rail is provided on the bottom surface of the hanging plate, and the two clamping claws are respectively connected to sliders movably arranged on the slide rail.

[0007] Preferably, the clamping jaw is in an inverted L-shape, comprising a sliding section fixed on a sliding block and a clamping arm section vertically connected to the sliding section, and the clamping arm section clamps the side of the workpiece.

[0008] Preferably, a clamping block is fixed to the lower side of the clamping arm section, and a clamping groove is formed on the side of the clamping block facing the workpiece.

[0009] Preferably, a clamping column is protruding from the top of the clamping block.

[0010] Preferably, the opening and closing clamping assembly includes a transverse driving member, and the two transverse driving members are distributed on both sides of the slide rail on the bottom surface of the hanging plate, and the output ends thereof are respectively connected to the clamping claws.

[0011] Preferably, the transverse driving member is a cylinder or a hydraulic cylinder.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When the workpiece is clamped by the clamping jaws, the turntable is in a free rotation state relative to the rotation control driving member. When the clamping jaw contacts the inclined side of the workpiece, the contact between the inner side of the clamping jaw and the workpiece is point contact or line contact. Because the turntable can rotate freely, the clamping jaw can automatically deflect with the workpiece during the continuous clamping process, and the workpiece remains stationary until the inner side of the clamping jaw completely forms a surface contact with the side of the workpiece, without the need to forcibly displace the workpiece through the clamping jaws, guide it, and then clamp it, thereby preventing the workpiece surface from being worn and friction from generating dust; afterwards, the turntable is controlled to rotate by the rotation control driving member, indirectly driving the two clamping jaws at the bottom of the hanging plate to rotate together, so that the angle of the workpiece is adjusted to the preset correct position.

[0014] 2. When the workpiece is clamped by the clamping block, the clamping block is clamped on the column of the side ear through the clamping groove. At this time, the clamping block is supported on the bottom surface of the limit baffle to limit the workpiece from falling; the clamping column is inserted into the clamping groove to limit the movement of the workpiece relative to the clamping jaws so that the clamping jaws can stably clamp the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the clamping mechanism with automatic angle correction function of the utility model;

[0016] Figure 2 This is an exploded view of the clamping mechanism with automatic angle correction function of the utility model;

[0017] Figure 3 This is a front view of the clamping jaw mechanism with automatic angle correction function of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the clamping block of the utility model when clamping a workpiece;

[0019] Figure 5 This is a diagram of the use state of the clamping jaws of the utility model before the workpiece is tilted and the clamping jaws are clamped;

[0020] Figure 6 This is a diagram showing the use state of the utility model when the clamping jaw is freely deflected and then clamps the workpiece;

[0021] Figure 7 This is a diagram of the utility model in use after the workpiece is straightened by the clamping jaws.

[0022] The markings in the figure correspond to the following:

[0023] 1-fixed seat; 2-angle guiding mechanism; 21-rotation control driving member; 22-turntable; 23-hanging plate; 3-opening and closing clamping assembly; 31-clamping claw; 311-sliding section; 312-clamping arm section; 32-transverse driving mechanism; 4-slide rail; 5-slider; 6-clamping block; 61-clamping groove; 62-clamping column; 7-side ear; 71-column; 72-limit baffle; 721-clamping groove; 8-workpiece; 81-outer edge. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-2 A clamping mechanism with automatic angle correction function is used to clamp a workpiece 8, comprising a fixed seat 1, an angle correction mechanism 2 and an opening and closing clamping assembly 3. The angle correction mechanism 2 comprises a rotation control driving member 21, a turntable 22 and a hanging plate 23. The rotation control driving member 21 is fixedly arranged at the bottom of the fixed seat 1, the turntable 22 is rotatably arranged at the bottom of the rotation control driving member 21, and the hanging plate 23 is fixedly connected to the turntable 22. The opening and closing clamping assembly 3 comprises two clamping jaws 31 which are relatively and movably arranged at the bottom of the hanging plate 23, and the workpiece 8 is clamped or separated by moving the two clamping jaws 31 toward or away from each other on the hanging plate 23.

[0026] In this embodiment, the turntable 22 has three motion states. The turntable 22 can rotate freely relative to the rotation control driving member 21 or be restricted from rotating by the rotation control driving member 21 and remain in a fixed state. The turntable 22 can also be driven to rotate by the rotation control driving member 21. Figure 1 as well as Figure 5 When the workpiece 8 is clamped by the clamping jaw 31, the turntable 22 rotates relatively to control the driving member 21 to be in a free rotation state. When the clamping jaw 31 contacts the side of the inclined workpiece 8, the contact between the inner side of the clamping jaw 31 and the workpiece 8 is point contact or line contact. Since the turntable 22 can rotate freely, the clamping jaw 31 can automatically deflect with the workpiece 8 during the continuous clamping process. The workpiece 8 remains stationary during this process, and the position of the workpiece 8 can be adjusted by rotating the clamping jaw 31 after clamping the workpiece 8. Therefore, there is no need to forcibly displace the workpiece 8 through the clamping jaw 31, guide it, and then clamp it, thereby avoiding wear on the surface of the workpiece 8.

[0027] See also Figure 2The bottom surface of the hanging plate 23 is provided with a slide rail 4, and the two clamping jaws 31 are respectively connected to a slider 5 movably provided on the slide rail 4. The clamping jaw 31 is in an inverted L shape, including a sliding section 311 fixed on the slider 5 and a clamping arm section 312 vertically connected to the sliding section 311, and the clamping arm section 312 clamps the side of the workpiece 8, and the clamping arm sections 312 of the two clamping jaws 31 cooperate to clamp the two sides of the workpiece 8.

[0028] See also Figure 1-3 A clamping block 6 is fixed to the lower side of the clamping arm section 312, and a clamping groove 61 is formed on the side of the clamping block 6 facing the workpiece 8. Figure 3 A clamping column 62 is protruding from the top of the clamping block 6 for the workpiece 8 to be clamped into a limited position.

[0029] See also Figure 4-5 In this embodiment, the workpiece 8 extends outwardly to form an outer edge 81, and the outer edges 81 on both sides of the workpiece 8 are respectively provided with side ears 7 adapted to the clamping block 6. The side ears 7 include a column 71 erected on the outer edge 81 and a limit baffle 72 connected to the top of the column 71, and the limit baffle 72 is provided with a slot 721 toward the side of the clamping block 6.

[0030] See also Figure 1 as well as Figure 4 When the workpiece 8 is clamped by the clamping block 6, the clamping block 6 is clamped on the column 71 of the side ear 7 through the clamping groove 61. At this time, the clamping block 6 is supported on the bottom surface of the limit baffle 72 to limit the workpiece 8 from falling; the clamping column 62 is inserted into the clamping groove 721 to limit the movement of the workpiece 8 relative to the clamping jaw 31, so that the clamping jaw 31 can stably clamp the workpiece 8.

[0031] See also Figure 2 The opening and closing clamping assembly 3 includes a transverse driving member 32. In this embodiment, there are two transverse driving members 32, which are distributed on both sides of the slide rail 4 on the bottom surface of the hanging plate 23, and the output ends thereof are respectively connected to the clamping claw 31 to drive the clamping claw 31 to move. In this embodiment, the transverse driving member 32 is a cylinder or a hydraulic cylinder.

[0032] The working principle of the clamping mechanism with automatic angle correction function of the utility model is: Figure 5 When the side of the clamped workpiece 8 and the side of the clamping jaw 31 have a certain inclination angle, the two transverse driving members 32 drive the clamping jaws 31 to move toward each other along the axial direction of the slide rail 4, and the two clamping jaws 31 continue to approach the workpiece 8; when the clamping jaws 31 contact the side of the inclined workpiece 8, the contact between the inner side of the clamping jaws 31 and the workpiece 8 is point contact or line contact. At this time, the relative rotation of the turntable 22 controls the driving member 21 to be in a free rotation state, so that the clamping jaws 31 can automatically deflect with the workpiece 8 during the continuous clamping process, and the workpiece 8 remains stationary until the inner side of the clamping jaws 31 completely forms a surface contact with the side of the workpiece 8, as shown in FIG. Figure 6 As shown, the workpiece 8 is prevented from being forcibly displaced and guided by the clamping jaws 31 and then clamped, thereby preventing the surface of the workpiece 8 from being worn and friction-generated dust; please refer to Figure 7 , and then the turntable 22 is controlled to rotate by the rotation control driving member 21, which indirectly drives the two clamping jaws 31 at the bottom of the hanging plate 23 to rotate together, so that the angle of the workpiece 8 is adjusted to the preset correct position. When the workpiece 8 is adjusted, the turntable 22 remains fixed and cannot rotate; finally, the clamping jaws 31 are driven to move axially in the opposite direction along the slide rail 4 by the two transverse driving members 32, and the two clamping jaws 31 move away from the workpiece 8, thereby opening the workpiece 8 and making the workpiece 8 disengage from the clamping jaws 31; when the clamping jaws 31 are disengaged from the workpiece 8, the turntable 22 is in a free rotation state relative to the rotation control driving member 21, that is, the clamping jaws 31 are also in a free rotation state, waiting for the next step of clamping the workpiece 8.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping jaw mechanism with automatic angle correction function for clamping a workpiece (8), characterized in that: The invention comprises a fixed seat (1), an angle correction mechanism (2) and an opening and closing clamping assembly (3); the angle correction mechanism (2) comprises a rotation control driving member (21), a rotating disk (22) and a hanging plate (23); the rotation control driving member (21) is fixedly arranged at the bottom of the fixed seat (1); the rotating disk (22) is rotatably arranged at the bottom end of the rotation control driving member (21); the hanging plate (23) is fixedly connected to the rotating disk (22); and the opening and closing clamping assembly (3) comprises two clamping claws (31) which are relatively and movably arranged at the bottom of the hanging plate (23).

2. The clamping jaw mechanism with automatic angle correction function according to claim 1, characterized in that: The bottom surface of the hanging plate (23) is provided with a slide rail (4), and the two clamping claws (31) are respectively connected with a slider (5) movably arranged on the slide rail (4).

3. The clamping jaw mechanism with automatic angle correction function according to claim 2, characterized in that: The clamping jaw (31) is in an inverted L-shape, comprising a sliding section (311) fixed on the slider (5) and a clamping arm section (312) vertically connected to the sliding section (311), and the clamping arm section (312) is clamped on the side of the workpiece (8).

4. The clamping jaw mechanism with automatic angle correction function according to claim 3 is characterized in that: A clamping block (6) is fixed to the lower side of the clamping arm section (312), and a clamping groove (61) is formed on the side of the clamping block (6) facing the workpiece (8).

5. The clamping jaw mechanism with automatic angle correction function according to claim 4, characterized in that: A clamping column (62) is protrudingly provided on the top of the clamping block (6).

6. The clamping jaw mechanism with automatic angle correction function according to claim 2, characterized in that: The opening and closing clamping assembly (3) comprises a transverse driving member (32). The two transverse driving members (32) are distributed on both sides of the slide rail (4) on the bottom surface of the hanging plate (23), and the output ends thereof are respectively connected to the clamping claws (31).

7. The clamping jaw mechanism with automatic angle correction function according to claim 6, characterized in that: The transverse driving member (32) is a cylinder or a hydraulic cylinder.

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