Quick-change clamp

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a quick-change clamp which is characterized in that a moving assembly is arranged in a bottom plate, the top of the moving assembly extends to the outside of the bottom plate, clamping plates are arranged on the left side and the right side of the top of the moving assembly respectively, and first rectangular clamping faces are arranged on the opposite sides of the two clamping plates; vertical arc-shaped second clamping faces are arranged on the front surfaces and the rear surfaces of the clamping plates correspondingly, transverse arc-shaped third clamping faces are arranged on the opposite sides of the two clamping plates correspondingly, and a conversion assembly is arranged between the moving assembly and the clamping plates. According to the clamping plate, the first clamping face, the second clamping face and the third clamping face can be switched through the switching assembly, operation is easy during switching, rapid switching can be conducted, and therefore the clamp is convenient to use and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, specifically a quick-change clamp. BACKGROUND

[0002] Clamp refers to the device used for fixing the machining object in the mechanical manufacturing process, making it occupy the correct position to accept construction or detection, also called fixture. In a broad sense, the device used for quickly, conveniently and safely installing workpiece in the process of any process can be called clamp.

[0003] However, most of the existing clamps need to be replaced when clamping different shaped workpieces, and it is inconvenient to clamp different shaped workpieces by replacing different clamping surfaces, which will lead to low work efficiency, so that the clamp cannot meet more use requirements, and the practicality is not strong enough, therefore, aiming at the above problems, a quick-change clamp is provided. INVENTION CONTENTS

[0004] In order to make up for the deficiency of the prior art, solve the problem that most of the existing clamps need to be replaced when clamping different shaped workpieces, and it is inconvenient to clamp different shaped workpieces by replacing different clamping surfaces, which will lead to low work efficiency, so that the clamp cannot meet more use requirements, and the practicality is not strong enough, the utility model provides a quick-change clamp.

[0005] The utility model solves the technical scheme that the utility model discloses a quick-change clamp, the inside of bottom plate is provided with moving assembly, the top of moving assembly extends to the outside of bottom plate, the left and right sides of the top of moving assembly are provided with clamping plate;

[0006] The opposite side of two clamping plates is provided with rectangular clamping surface one, the front and back surfaces of clamping plate are provided with vertical arc-shaped clamping surface two, and the opposite side of two clamping plates is provided with horizontal arc-shaped clamping surface three.

[0007] The conversion assembly is arranged between the moving assembly and the clamping plate.

[0008] Preferably, the moving assembly comprises a mounting groove formed in the inside of the bottom plate, the upper surface of the inside of the mounting groove extends to the top of the bottom plate, a bidirectional threaded rod is rotatably connected between the left and right sides of the inside of the mounting groove through a bearing, the two ends of the bidirectional threaded rod respectively penetrate the left and right sides of the bottom plate, a rotating rod is fixedly connected to the left and right ends of the bidirectional threaded rod, and an internally threaded sleeve plate is threadedly connected to the outer surface of the bidirectional threaded rod.

[0009] Preferably, the conversion assembly comprises a limiting groove opened at the bottom center of the clamping plate, the inner upper surface of the limiting groove is provided with a clamping assembly, the top of the internally threaded sleeve plate is fixedly connected with a limiting block, the limiting block is inserted into the limiting groove, the inner limiting block and the internally threaded sleeve plate are jointly provided with an inner groove, the inner upper surface of the inner groove is provided with a through hole, the inner groove is slidably connected with a sliding plate, the sliding plate and the inner groove are fixedly connected with spring two, the top of the sliding plate is fixedly connected with a pull rod, the top of the pull rod penetrates through spring two and the through hole, the pull rod is fixedly connected with the clamping assembly, and the limiting block and the limiting groove are both rectangular.

[0010] Preferably, the clamping assembly comprises a insertion slot opened in the inner upper surface of the limiting groove, the inner side wall of the insertion slot is provided with a continuous clamping groove, the insertion slot is inserted with an insertion block, the insertion block is fixedly connected with the pull rod, the bottom of the insertion block is attached to the top of the limiting block, the outer surface of the insertion block is provided with a plurality of uniformly distributed sliding grooves, the sliding grooves are slidably connected with sliding blocks, the sliding blocks and the sliding grooves are fixedly connected with spring one, and the sliding blocks are fixedly connected with clamping blocks on one side.

[0011] Preferably, the vertical section of the mounting groove and the vertical section of the internally threaded sleeve plate are both T-shaped, and one end of the rotating rod is fixedly connected with a crank handle.

[0012] Preferably, the top center of the clamping plate is fixedly connected with a handle, and the bottom of the clamping plate is attached to the top of the bottom plate.

[0013] Preferably, the front surface of the bottom plate is provided with a rectangular handle groove.

[0014] The utility model discloses the beneficial effect lies in:

[0015] 1. The utility model discloses a clamping plate can carry out the conversion between clamping surface one and clamping surface two and clamping surface three through the conversion assembly, and when conversion, operation is relatively simple, and can carry out quick conversion, thereby making the fixture convenient to use, and practicality is stronger.

[0016] 2. The utility model discloses two clamping plates are moved through the moving assembly and are clamped and positioned to the workpiece that needs processing, and through clamping surface one and clamping surface two and clamping surface three on the clamping plate, the rectangular workpiece and the circular workpiece can be clamped, then when clamping the circular workpiece, vertical clamping and horizontal clamping can also be carried out, and more clamping demands can be satisfied. ACCURACY OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0018] Figure 1 It is a perspective structural schematic diagram in the embodiment one;

[0019] Figure 2 It is a front view structural schematic diagram in the embodiment one;

[0020] Figure 3 It is a partial front view structural schematic diagram in the embodiment one;

[0021] Figure 4 It is a partial front view structural schematic diagram in the embodiment one; Figure 3 It is an enlarged structural schematic diagram at A in the embodiment one;

[0022] Figure 5 It is a partial front view structural schematic diagram in the embodiment one.

[0023] In the figure: 1, bottom plate; 2, handle groove; 3, moving assembly; 31, installation groove; 32, crank handle; 33, rotating rod; 34, inner threaded sleeve plate; 35, two-way threaded rod; 4, clamping plate; 41, clamping surface one; 42, clamping surface two; 43, clamping surface three; 5, handle; 6, conversion assembly; 61, insertion slot; 62, insertion block; 63, clamping slot; 64, clamping block; 65, sliding block; 66, sliding groove; 67, spring one; 68, limiting slot; 69, limiting block; 610, through hole; 611, inner slot; 612, pull rod; 613, spring two; 614, sliding plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] Embodiment one

[0026] Please refer to Figures 1-5 A quick-change clamp is shown, the bottom plate 1 is internally provided with a moving assembly 3, the moving assembly 3 extends to the outside of the bottom plate 1 at the top, the moving assembly 3 is provided with a clamping plate 4 at the top of left and right sides;

[0027] Two sides of the clamping plate 4 are provided with a rectangular clamping surface one 41, the front and back surfaces of the clamping plate 4 are provided with vertical arc-shaped clamping surface two 42, and the opposite sides of the clamping plate 4 are provided with transverse arc-shaped clamping surface three 43.

[0028] The moving assembly 3 and the clamping plate 4 are provided with a conversion assembly 6; in work, first, the bottom of the bottom plate 1 is attached to the flat placement surface so that the clamp is placed stably, and then the moving assembly 3 is used to move the two clamping plates 4 to clamp and position the workpiece to be machined, and the clamping surface one 41, the clamping surface two 42 and the clamping surface three 43 on the clamping plate 4 can clamp the rectangular workpiece and the circular workpiece, then vertical clamping and transverse clamping can be performed when clamping the circular workpiece, and more clamping requirements can be met, at the same time, the clamping plate 4 can be converted between the clamping surface one 41, the clamping surface two 42 and the clamping surface three 43 through the conversion assembly 6, the conversion is relatively simple, and quick conversion can be performed, so that the clamp is convenient to use and has high practicality.

[0029] The moving assembly 3 comprises an installation groove 31 opened in the inside of the bottom plate 1, the inside upper surface of the installation groove 31 extends to the top of the bottom plate 1, the left and right sides of the inside of the installation groove 31 are rotatably connected with a bidirectional threaded rod 35 through a bearing, the left and right ends of the bidirectional threaded rod 35 respectively penetrate the left and right sides of the bottom plate 1, the left and right ends of the bidirectional threaded rod 35 are fixedly connected with a rotating rod 33, the outer surface of the bidirectional threaded rod 35 is threadedly connected with an internal thread sleeve plate 34, and the internal thread sleeve plate 34 is installed with the clamping plate 4 through the conversion assembly 6; in work, the rotating rod 33 is rotated to drive the bidirectional threaded rod 35 to rotate in the installation groove 31, and the rotation of the bidirectional threaded rod 35 can drive the internal thread sleeve plate 34 threadedly connected therewith to slide in the installation groove 31, then the sliding of the internal thread sleeve plate 34 drives the clamping plate 4 installed through the conversion assembly 6 to move, and the two clamping plates 4 on the top of the bottom plate 1 can move towards each other to clamp the workpiece to be machined, and after the machining is completed, the clamping plate 4 is separated by rotating the rotating rod 33, so that the clamping of the workpiece is released.

[0030] The conversion assembly 6 includes a limiting groove 68 opened at the bottom center of the clamping plate 4, the inner upper surface of the limiting groove 68 is provided with a clamping assembly, the top of the internally threaded sleeve plate 34 is fixedly linked with a limiting block 69, the limiting block 69 is inserted into the limiting groove 68, the inner portion of the limiting block 69 and the inner portion of the internally threaded sleeve plate 34 are jointly provided with an inner groove 611, the inner upper surface of the inner groove 611 is provided with a through hole 610, the inner groove 611 is slidably connected with a sliding plate 614, the sliding plate 614 and the inner groove 611 are fixedly connected with a spring 613, the top of the sliding plate 614 is fixedly connected with a pull rod 612, the top end of the pull rod 612 penetrates through the spring 613 and the through hole 610, the pull rod 612 is fixedly connected with the clamping assembly, and the limiting block 69 and the limiting groove 68 are both rectangular in shape; in working, when it is needed to convert the clamping surface one 41 and the clamping surface two 42 and the clamping surface three 43 on the clamping plate 4, the clamping plate 4 is first pulled upwards to drive the pull rod 612 to move through the clamping assembly, the pull rod 612 drives the sliding plate 614 to move after moving, and the spring 613 is extruded after the sliding plate 614 moves to make the spring 613 have a rebound force, then the rectangular limiting block 69 is separated from the limiting of the clamping plate 4 after the limiting groove 68 moves out of the outer surface of the limiting block 69 during the movement of the clamping plate 4, and the clamping surface one 41 is converted with the clamping surface two 42 and the clamping surface three 43 by rotating the clamping plate 4, and the rotation of the clamping plate 4 can be limited by the clamping assembly during rotation, the clamping plate 4 is slowly released after conversion to move under the action of the rebound force of the spring 613, and the limiting block 69 is inserted into the limiting groove 68 again to limit the position of the clamping plate 4 after conversion to keep stable, thereby facilitating subsequent clamping.

[0031] The clamping assembly comprises a slot 61 opened on the upper surface inside the limiting groove 68, a continuous clamping groove 63 is opened on the inner side wall of the slot 61, a plug 62 is inserted into the slot 61, the plug 62 is fixedly connected with the pull rod 612, the bottom of the plug 62 is attached to the top of the limiting block 69, a plurality of evenly distributed sliding grooves 66 are opened on the outer surface of the plug 62, a sliding block 65 is slidably connected inside the sliding groove 66, a spring 67 is fixedly connected between the sliding block 65 and the sliding groove 66, a clamping block 64 is fixedly connected on one side of the sliding block 65, and the outer surface of the clamping block 64 is clamped in the clamping groove 63; When working, the plug 62 is inserted into the slot 61 stably by clamping the clamping block 64 in the clamping groove 63, the clamping block 64 can rotate in the clamping groove 63, and the plug 62 can rotate in the slot 61, when the clamping plate 4 is pulled, the plug 62 is stably inserted into the slot 61 to move the pull rod 612, and it is convenient to convert after the clamping plate 4 moves, and when rotating, the rotation of the plug 62 and the slot 61 and the rotation of the clamping block 64 and the clamping groove 63 are limited, so that the clamping plate 4 rotates stably when converting, and the elastic coefficient of the spring 67 is greater than that of the spring 613, so the rebound force of the spring 613 pressed after the pull rod 612 moves will not press the spring 67 in the sliding groove 66, and when the clamping plate 4 is disassembled, the clamping plate 4 is moved upward to make the clamping plate 4 drive the pull rod 612 and the sliding plate 614 to move to press the spring 613, and when the spring 613 is completely pressed, the clamping block 64 in the clamping groove 63 will be pressed by continuously moving the clamping plate 4, and after the clamping block 64 is pressed, the sliding block 65 and the spring 67 are contracted by pressing, then the clamping block 64 is contracted in the sliding groove 66, so that the plug 62 can be removed from the slot 61, and the clamping plate 4 can be disassembled after the plug 62 is removed from the slot 61 and then removed from the limiting groove 68, so that the clamping plate 4 can be disassembled and replaced when damaged.

[0032] The vertical section of the mounting groove 31 and the vertical section of the internally threaded sleeve plate 34 are both T-shaped, and the end of the rotating rod 33 is fixedly connected with a crank 32; When working, the crank 32 is convenient for the rotation of the rotating rod 33, and the T-shaped internally threaded sleeve plate 34 can limit the sliding of the internally threaded sleeve plate 34 when sliding in the mounting groove 31, and make the sliding of the internally threaded sleeve plate 34 stable.

[0033] The clamping plate 4 is fixedly connected with a handle 5 at the top center, and the bottom of the clamping plate 4 is attached to the top of the bottom plate 1; When working, the handle 5 is convenient for the vertical movement of the clamping plate 4, and the clamping plate 4 can move and separate on the top of the bottom plate 1.

[0034] Example two

[0035] Please refer to Figure 1As shown, the comparative example one, as another embodiment of the utility model, the bottom plate 1 front surface center is equipped with the rectangular shape's take groove 2, work, through take groove 2, it is convenient to move and carry for the clamp.

[0036] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The basic principles, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A quick-change clamp, comprising a base plate (1), wherein a moving component (3) is disposed inside the base plate (1), the top of the moving component (3) extends to the outside of the base plate (1), and clamping plates (4) are disposed on the left and right sides of the top of the moving component (3); Its features are: A rectangular clamping surface (41) is provided on one side opposite to the two clamping plates (4). A vertical arc-shaped clamping surface (42) is provided on both the front and back surfaces of the clamping plates (4). A horizontal arc-shaped clamping surface (43) is provided on one side opposite to the two clamping plates (4). A conversion component (6) is provided between the moving component (3) and the clamping plate (4).

2. The quick-change fixture according to claim 1, characterized in that: The moving component (3) includes a mounting groove (31) inside the base plate (1). The upper surface of the mounting groove (31) extends to the top of the base plate (1). A bidirectional threaded rod (35) is rotatably connected between the left and right sides of the mounting groove (31) via a bearing. The two ends of the bidirectional threaded rod (35) pass through the left and right sides of the base plate (1) respectively. A rotating rod (33) is fixedly connected to both ends of the bidirectional threaded rod (35). An internal threaded sleeve plate (34) is threadedly connected to the outer surface of the bidirectional threaded rod (35). The internal threaded sleeve plate (34) is installed with the clamping plate (4) via a conversion component (6).

3. A quick-change fixture according to claim 2, characterized in that: The conversion component (6) includes a limiting groove (68) located at the center of the bottom of the clamping plate (4). A snap-fit ​​component is provided on the upper surface of the inner side of the limiting groove (68). A limiting block (69) is fixedly connected to the top of the internal threaded sleeve plate (34). The limiting block (69) is inserted into the limiting groove (68). An inner groove (611) is formed in both the inner side of the limiting block (69) and the inner side of the internal threaded sleeve plate (34). A through hole is formed on the upper surface of the inner side of the inner groove (611). (610) A sliding plate (614) is slidably connected inside the inner groove (611). A second spring (613) is fixedly connected between the sliding plate (614) and the inner groove (611). A pull rod (612) is fixedly connected to the top of the sliding plate (614). The top of the pull rod (612) passes through the second spring (613) and the through hole (610). The pull rod (612) is fixedly connected to the snap-fit ​​assembly. The limiting block (69) and the limiting groove (68) are both set in a rectangular shape.

4. A quick-change fixture according to claim 3, characterized in that: The snap-fit ​​assembly includes a slot (61) formed on the upper surface inside the limiting groove (68). A continuous ring of slots (63) is formed on the inner side wall of the slot (61). A plug (62) is inserted into the slot (61). The plug (62) is fixedly connected to the pull rod (612). The bottom of the plug (62) is in contact with the top of the limiting block (69). A plurality of evenly distributed sliding grooves (66) are formed on the outer surface of the plug (62). A slider (65) is slidably connected inside the sliding groove (66). A spring (67) is fixedly connected between the slider (65) and the sliding groove (66). A snap-fit ​​block (64) is fixedly connected to one side of the slider (65). The outer surface of the snap-fit ​​block (64) is snapped into the slot (63).

5. A quick-change fixture according to claim 4, characterized in that: The vertical section of the mounting groove (31) and the vertical section of the internal threaded sleeve plate (34) are both set in a T-shape, and a crank handle (32) is fixedly connected to one end of the rotating rod (33).

6. A quick-change fixture according to claim 5, characterized in that: A handle (5) is fixedly connected to the top center of the clamping plate (4), and the bottom of the clamping plate (4) is in contact with the top of the base plate (1).

7. A quick-change fixture according to claim 6, characterized in that: A rectangular groove (2) is provided at the center of the front surface of the base plate (1).

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