Clamp structure

Abstract

The utility model relates to the technical field of machining, in particular to a clamp structure which comprises a base and a fixing block, the upper end of the base is fixedly connected with the fixing block, the upper end of the fixing block is fixedly connected with a box body, the inner wall of the box body is rotatably connected with a double-end stud through a bearing, the right end of the double-end stud is fixedly connected with a rotating rod, and the right end of the rotating rod is fixedly connected with a rotating shaft. The outer wall of the double-end stud is in threaded connection with a threaded block, the outer wall of the threaded block is in sliding connection with the box body, and a replacement device is arranged at the upper end of the supporting plate. Through cooperation of the replacing device and the supporting plate, a first clamping plate and an anti-skid pad move synchronously, when the first clamping plate makes contact with a square workpiece, the first clamping plate abuts against the square workpiece and fixes the square workpiece, and the square workpiece is clamped and fixed; the positions of the first clamping plate and the second clamping plate can be replaced according to the shape of the workpiece, so that the clamping process of the spherical workpiece is completed, and the working limitation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely is a clamp structure. BACKGROUND

[0002] When the workpiece is processed, in order to be more stable for subsequent processing, it needs to be clamped and fixed, and a clamp structure needs to be used.

[0003] For example, a clamp structure with the authorization announcement number "CN 220161786 U", by setting the fixed strip, moving block and threaded rod in the inside of the handle, the fixed strip can be pulled inwards by rotating the handle, and then the clamping arm is driven inwards by the cooperation of the rotating rod and the connecting shaft, so that the clamping block can clamp the workpiece, the device can clamp the parts inside the machine, and accidents can be avoided when the staff work inside the machine, but when the device clamps and fixes the workpiece by the chuck, the chuck cannot adapt to the shape of the workpiece for clamping and fixing, which increases the working limitations of the device. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that the chuck cannot adapt to the shape of the workpiece for clamping and fixing when the device clamps and fixes the workpiece by the chuck, and increases the working limitations of the device, and provides a clamp structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] Design a clamp structure, including base and fixed block, the base upper end fixedly connected with fixed block, the fixed block upper end fixedly connected with box, the box inner wall is connected with double -end screw post rotation through bearing, the double -end screw post right -hand member fixedly connected with rotating rod, the double -end screw post outer wall is connected with threaded block thread, the threaded block outer wall is connected with the box sliding, the threaded block upper end fixedly connected with support plate, the support plate upper end is equipped with replacement device, the base four corners inner wall all are connected with bolt thread.

[0007] Preferably, the replacement device comprises a housing and a fixed rod, the housing bottom is fixedly connected with the support plate, the housing bottom inner wall is fixedly connected with the fixed rod, the fixed rod outer wall is provided with a spring, and the two ends of the spring are fixedly connected with the housing and the support rod respectively.

[0008] Preferably, the support rod inner wall is connected with the fixed rod slidingly, the support rod inner side end is fixedly connected with a first clamping plate, and the first clamping plate inner wall is fixedly connected with an antiskid pad.

[0009] Preferably, the support rod outer wall is connected with the housing slidingly.

[0010] Preferably, the second clamping plate is fixedly connected to the outer end of the supporting rod.

[0011] Preferably, the second clamping plate is fixedly connected to the outer end of the supporting rod.

[0012] The utility model provides a kind of fixture structure, beneficial effect lies in: when needing to be clamped and fixed to square workpiece, operator places square workpiece between the first clamping plate of both sides, rotates the double-end stud driven by rotating handle, and the threaded block is driven to move inwards by the double-end stud rotation, and the threaded block is moved simultaneously to drive support plate synchronous movement, and the support plate movement drives the first clamping plate to move inwards, and the first clamping plate and non-slip pad synchronous movement, when the first clamping plate is contacted with square workpiece and is tightly closed and is fixed, square workpiece is clamped and fixed, when needing to be clamped to spherical workpiece, operator holds support rod, and support rod drives the first clamping plate and second clamping plate synchronous movement upwards, so that spring is stretched, when support rod moves out of the inside of shell, support rod is moved on the surface of fixed rod under the reaction force of spring, operator rotates support rod to make it rotate, and the position of first clamping plate and second clamping plate is transposed, and the position of first clamping plate and second clamping plate is replaced, and the clamping process to spherical workpiece is completed, and the limitation of work is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is structural schematic diagram of the utility model;

[0014] Figure 2 It is Figure 1 front view section view;

[0015] Figure 3 It is Figure 2 state diagram of the chuck replacement in

[0016] Figure 4 It is Figure 2 A part of the diagram in

[0017] Figure 5 It is Figure 2 side view section view of the replacement device in

[0018] Figure 6 It is Figure 2 top view section view of the replacement device in

[0019] In the drawing: 1, base, 2, replacement device, 201, shell, 202, fixed rod, 203, spring, 204, support rod, 205, first clamping plate, 206, non-slip pad, 207, second clamping plate, 3, fixed block, 4, box, 5, double-end stud, 6, rotating handle, 7, threaded block, 8, support plate, 9, bolt. DETAILED DESCRIPTION

[0020] The utility model will be further described below with reference to the drawings:

[0021] Referring to the drawings Figures 1-6 : In this embodiment, a clamp structure comprises a base 1 and a fixed block 3, and the device can be installed as a whole at a machining position through the base plate 1 and the bolt 9, the fixed block 3 is fixedly connected to the upper end of the base 1, the box body 4 is fixedly connected to the upper end of the fixed block 3, the inner wall of the box body 4 is rotationally connected to the double-end stud 5 through a bearing, the box body 4 limits the rotation center of the double-end stud 5, the double-end stud 5 is fixedly connected to the right end of the rotating rod 6, the rotating rod 6 drives the double-end stud 5 to rotate synchronously, the outer wall of the double-end stud 5 is threadedly connected to the threaded block 7, the double-end stud 5 drives the threaded blocks 7 on both sides to move in opposite directions, the outer wall of the threaded block 7 is slidably connected to the box body 4, the box body 4 limits the position and movement track of the threaded block 7, the threaded block 7 is fixedly connected to the upper end of the supporting plate 8, the threaded rod 7 drives the supporting plate 8 to move synchronously, the supporting plate 8 is provided with the replacing device 2 at the upper end, and the inner walls of the four corners of the base 1 are threadedly connected to the bolts 9.

[0022] Referring to the drawings Figures 1-6 : The replacing device 2 comprises a shell 201 and a fixed rod 202, the shell 201 is fixedly connected to the bottom of the supporting plate 8, the fixed rod 202 is fixedly connected to the inner wall of the bottom end of the shell 201, the outer wall of the fixed rod 202 is provided with a spring 203, the spring constant of the spring 203 can meet the working requirement according to actual requirements, the two ends of the spring 203 are fixedly connected to the shell 201 and the supporting rod 204 respectively, the inner wall of the supporting rod 204 is slidably connected to the fixed rod 202, the fixed rod 202 limits the position and movement track of the supporting rod 204, the first clamping plate 205 is fixedly connected to the inner side end of the supporting rod 204, the first clamping plate 205 is a square clamping plate, the inner wall of the first clamping plate 205 is fixedly connected to the anti-skid pad 206, the anti-skid pad 206 can meet the working requirement according to actual requirements, the outer wall of the supporting rod 204 is slidably connected to the shell 201, the shell 201 limits the position and movement track of the supporting rod 204, the second clamping plate 207 is fixedly connected to the outer side end of the supporting rod 204, the second clamping plate 207 is an arc-shaped clamping plate, and the inner wall of the second clamping plate 207 is fixedly connected to the anti-skid pad 206.

[0023] Working principle:

[0024] The operator installs the base plate 1 at the machining site through the bolt 9, thereby preparing for subsequent clamping and fixing of the workpiece.

[0025] Square workpiece clamping process:

[0026] When the square workpiece needs to be clamped and fixed, the operator places the square workpiece between the first clamping plates 205 on both sides, rotates the rotating rod 6 to drive the double-headed stud 5 to rotate, the double-headed stud 5 drives the threaded block 7 to move inward, the threaded block 7 moves synchronously with the support plate 8, the support plate 8 moves the first clamping plate 205 inward, the first clamping plate 205 and the non-slip pad 206 move synchronously, when the first clamping plate 205 contacts the square workpiece and is tightly fixed, the square workpiece is clamped and fixed, when the clamping is no longer needed, the above process is controlled, and the reverse operation is performed to complete the clamping process of the square workpiece.

[0027] The clamping process of the spherical workpiece is as follows:

[0028] When the spherical workpiece needs to be clamped, the operator holds the support rod 204 and pulls it out upward, the support rod 204 drives the first clamping plate 205 and the second clamping plate 207 to move upward synchronously, so that the spring 203 is stretched, when the support rod 204 moves out of the inside of the shell 201, the support rod 203 moves on the surface of the fixed rod 202 under the action of the spring 203, the operator rotates the support rod 204 to rotate 180 degrees, so that the positions of the first clamping plate 205 and the second clamping plate 207 are exchanged, the operator sends the support rod 204 back to the inside of the shell 201, the support rod 204 returns to the inside of the shell 201, the positions of the first clamping plate 205 and the second clamping plate 207 are replaced, so that the second clamping plate 207 is on the inside, the operator rotates the rotating rod 6 to drive the double-headed stud 5 to rotate, the double-headed stud 5 drives the threaded block 7 to move inward, the threaded block 7 moves synchronously with the support plate 8, the support plate 8 moves the second clamping plate 207 inward, the second clamping plate 205 and the non-slip pad 206 move synchronously, when the second clamping plate 207 contacts the spherical workpiece and is tightly fixed, the spherical workpiece is clamped and fixed, when the clamping is no longer needed, the above process is controlled, and the reverse operation is performed, the positions of the first clamping plate 205 and the second clamping plate 207 can be replaced according to the shape of the workpiece, and the clamping process of the spherical workpiece is completed.

[0029] Although the utility model has been illustrated and described by referring to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made within the scope of the claims.

Claims

1. A fixture structure comprising a base (1) and a fixed block (3), the fixed block (3) being fixedly connected to the upper end of the base (1), characterized in that: The fixed block (3) upper end fixedly connected has the box (4), the box (4) inner wall is rotationally connected with stud (5) through bearing, the stud (5) right end fixedly connected has the rotary bar (6), the stud (5) outer wall is threadedly connected with threaded block (7), the threaded block (7) outer wall is slidably connected with the box (4), the threaded block (7) upper end fixedly connected has the support plate (8), the support plate (8) upper end is equipped with the replacement device (2), the base (1) four corners inner wall is all threadedly connected with bolt (9).

2. The clamp structure of claim 1, wherein: The replacement device (2) includes shell (201) and fixed rod (202), the shell (201) bottom is fixedly connected with the support plate (8), the shell (201) bottom end inner wall is fixedly connected with fixed rod (202), the fixed rod (202) outer wall is equipped with spring (203), and both ends of the spring (203) are fixedly connected with shell (201) and support rod (204) respectively.

3. The clamp structure of claim 2, wherein: The support rod (204) inner wall is slidably connected with the fixed rod (202), and the support rod (204) inner side end is fixedly connected with the first clamping plate (205).

4. The clamp structure of claim 3, wherein: The support rod (204) outer wall is slidably connected with the shell (201).

5. The clamp structure of claim 4, wherein: The support rod (204) outer side end is fixedly connected with the second clamping plate (207).

6. The clamp structure of claim 5, wherein: The second clamping plate (207) inner wall is fixedly connected with the non-slip pad (206). The second clamping plate (207) inner wall is fixedly connected with the non-slip pad (206).

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