CN219254829U - Clamping jig - Google Patents

Abstract

The utility model discloses a clamping fixture, which comprises a bottom plate, on which a clamping mechanism is installed, and the clamping mechanism includes a fixed block, a clamping block and a locking bolt, and the fixed block is detachably installed on the One end of the block is provided with a sliding slope, and the rear end of the clamping block is provided with a first inclined surface that slides and fits with the sliding slope. The sliding direction of the card slot is parallel to the sliding slope, the chuck head is provided with a vertical bolt hole, the locking bolt is threadedly matched with the bolt hole, and the upper end of the locking bolt is provided with a The indenter on the surface; the clamping mechanism of this scheme completely relies on the mechanical structure to realize the clamping of the workpiece. It has strong stability and reliability, and has good self-locking performance. At the same time, the clamping mechanism has a simple structure, small size, and position adjustment. It is convenient for clamping and fixing workpieces of different shapes or sizes.

Description

A clamping fixture

technical field

The utility model relates to the technical field of clamping of workpieces, in particular to a clamping fixture.

Background technique

During the processing of the workpiece, it is necessary to clamp the workpiece to facilitate subsequent processing. In order to ensure the stability of the workpiece, the general fixture should be clamped to fix a workpiece, while the general structure and position of the existing fixture are fixed. As a result, this type of fixture cannot adjust the position of the fixture according to the shape and size of the workpiece; at the same time, the existing fixture generally uses a cylinder or hydraulic cylinder to clamp the workpiece, which makes the fixture structure complex, cumbersome to operate, and takes up a lot of space. As a result, this type of fixture is likely to cause interference and obstruction to the processing area of the workpiece, making it difficult to clamp special-shaped workpieces and workpieces of different sizes.

Utility model content

Aiming at the above-mentioned shortcomings of the prior art, the utility model provides a clamping jig, which solves the problems of complex structure, large space occupation and difficult position adjustment of the existing jig.

In order to achieve the above object, the technical solution adopted in the utility model is:

A clamping fixture is provided, which includes a bottom plate, a clamping mechanism is installed on the bottom plate, the clamping mechanism includes a fixed block, a clamping block and a locking bolt, the fixed block is detachably installed on the bottom plate, and one end of the fixed block is set There is a sliding slope, and the rear end of the clamping block is provided with a first inclined surface that slides and fits with the sliding slope. , the sliding direction of the card slot is parallel to the sliding slope surface, the clamping head is provided with a vertical bolt hole, the locking bolt is threaded with the bolt hole, and the upper end of the locking bolt is provided with a pressure head for abutting against the upper surface of the clamping block .

The beneficial effect of adopting the above-mentioned technical solution is: when this solution is in use, several clamping mechanisms matching the shape and size of the workpiece can be installed on the bottom plate according to the shape and size of the workpiece, and the workpiece is located at the center of several clamping mechanisms. between the clamping blocks, and make the front end of the clamping block against the side of the workpiece, by rotating the locking bolt, the pressure head squeezes the clamping block and slides down along the sliding slope, while the clamping block slides, its There is a horizontal displacement component, so that the front end of the clamping block gradually presses against the side of the workpiece, and finally through the joint action of several clamping blocks, the clamping and fixing of the workpiece is realized, and the clamping mechanism completely relies on the mechanical structure Realize the clamping of workpieces, its stability and reliability are strong, and it has good self-locking performance. At the same time, the clamping mechanism has a simple structure, small size, and convenient position adjustment, so as to clamp and fix workpieces of different shapes or sizes. And avoid the processing area of the workpiece.

Further, the front end of the clamping block is provided with a second inclined surface, and the angle between the second inclined surface and the bottom surface of the clamping block is an obtuse angle, so that the front end of the clamping block can be in contact with the edge of the workpiece, so that The second inclined surface can press the workpiece against the base plate, so that the workpiece and the base plate are in close contact, which is beneficial to the stable clamping of the workpiece.

Furthermore, a flexible pad is provided on the second inclined surface, so that the clamping block and the workpiece are in flexible contact through the flexible pad, so as to avoid damage to the workpiece caused by hard contact; the outer surface of the flexible pad is a serrated surface.

Further, the fixed block is fixedly connected with the base plate through the positioning bolts, the base plate is provided with a number of positioning bolt holes, the fixed block is provided with avoidance through holes, and the positioning bolts pass through the avoidance through holes and threaded with the positioning bolt holes; so that the fixed block It is easy to disassemble and assemble, and is convenient for position adjustment of the clamping mechanism.

Furthermore, several positioning bolt holes are evenly arranged in an array on the bottom plate, so that the degree of freedom of position adjustment of the clamping mechanism on the bottom plate is high, so as to facilitate clamping and fixing of batch processed parts of different sizes.

Furthermore, the avoidance through hole is a bar-shaped through hole, and the bar-shaped through hole can realize further adjustment of the position of the fixing block.

Further, cross-sections of the clamping head and the clamping groove are both T-shaped.

Description of drawings

Figure 1 is a schematic diagram of the structure of the clamping fixture of this scheme.

Fig. 2 is a schematic diagram of the structure of the fixed block.

Fig. 3 is a schematic structural diagram of a clamping block.

Among them, 1. Bottom plate, 2. Fixed block, 3. Clamping block, 4. Lock bolt, 5. Sliding slope, 6. First inclined surface, 7. Chuck head, 8. Card slot, 9. Bolt hole , 10, pressure head, 11, second inclined surface, 12, flexible pad, 13, positioning bolt, 14, positioning bolt hole, 15, avoiding through hole, 16, processed parts.

Detailed ways

The specific embodiment of the present utility model is described below, so that those skilled in the art understand the utility model, but should be clear, the utility model is not limited to the scope of specific embodiment, for those of ordinary skill in the art, as long as Various changes are within the spirit and scope of the utility model defined and determined by the appended claims, and these changes are obvious, and all utility model creations utilizing the concept of the utility model are all included in the protection list.

As shown in Figures 1 to 3, the clamping fixture of this program includes a bottom plate 1, on which a clamping mechanism is installed, and the clamping mechanism includes a fixed block 2, a clamping block 3 and a locking bolt 4, and the fixed block 2 Fixedly connected with base plate 1 by positioning bolt 13, base plate 1 is provided with several positioning bolt holes 14, and fixed block 2 is provided with avoidance through hole 15, and positioning bolt 13 passes through avoidance through hole 15 and sets bolt hole 14 thread fits.

One end of the fixed block 2 is provided with a sliding slope 5, and the rear end of the clamping block 3 is provided with a first inclined surface 6 that slides and fits with the sliding slope 5, and a chuck 7 is arranged on the sliding slope 5, and the first inclined surface 6 is provided with a card slot 8 that slides and engages with the chuck 7. The cross-sections of the chuck 7 and the slot 8 are T-shaped, and the sliding direction of the slot 8 is parallel to the sliding slope 5. Straight bolt hole 9, the locking bolt 4 is threadedly matched with the bolt hole 9, and the upper end of the locking bolt 4 is provided with a pressure head 10 for abutting against the upper surface of the clamping block 3.

During specific implementation, according to the shape and size of the workpiece 16, several clamping mechanisms suitable for the shape and size of the workpiece 16 can be installed on the base plate 1, and the workpiece 16 is located between the clamping blocks 3 of several clamping mechanisms. , and make the front end of the clamping block 3 contact the side of the workpiece 16, by rotating the locking bolt 4, the pressure head 10 will press the clamping block 3 and slide down along the sliding slope 5, and the clamping block 3 is sliding At the same time, there is a horizontal displacement component, so that the front end of the clamping block 3 gradually presses against the side of the workpiece 16, and finally through the joint action of several clamping blocks 3, the clamping and fixing of the workpiece 16 is realized. Among them, the clamping mechanism completely relies on the mechanical structure to realize the clamping of the workpiece 16. It has strong stability and reliability, and has good self-locking performance. At the same time, the clamping mechanism has a simple structure, small size, and convenient position adjustment, so as to facilitate clamping. The processing parts 16 of different shapes or sizes are fixed and the processing area of the processing parts 16 is avoided.

Preferably, the front end of the clamping block 3 is provided with a second inclined surface 11, and the angle between the second inclined surface 11 and the bottom surface of the clamping block 3 is an obtuse angle, so that the front end of the clamping block 3 can be aligned with the workpiece 16 The edges are abutted against each other, so that the second inclined surface 11 can press the workpiece 16 on the base plate 1, so that the workpiece 16 is closely attached to the base plate 1, which is conducive to the stable clamping of the workpiece 16; on the second inclined surface 11 A flexible pad 12 is provided to make flexible contact between the clamping block 3 and the workpiece 16 through the flexible pad 12 to avoid damage to the workpiece 16 caused by hard contact; the outer surface of the flexible pad 12 is a serrated surface, which is convenient for improving friction.

Preferably, several positioning bolt holes 14 are evenly arranged in an array on the base plate 1, and the avoidance through holes 15 are strip-shaped through holes. The strip-shaped through holes on the 2 finely adjust the position of the fixed block 2, thereby improving the degree of freedom of the position adjustment of the clamping mechanism on the base plate 1, so as to clamp and fix batch processing parts 16 of different sizes.

Claims (7)

1. A clamping fixture is characterized in that it comprises a base plate (1), and a clamping mechanism is installed on the base plate (1), and the clamping mechanism includes a fixed block (2), a clamping block (3) and locking bolts (4), the fixed block (2) is detachably installed on the bottom plate (1), and one end of the fixed block (2) is provided with a sliding slope (5), and the clamping block ( 3) the rear end is provided with the first inclined surface (6) that slides and fits with the sliding slope surface (5), the chuck (7) is arranged on the sliding slope surface (5), and the first inclined surface (6) ) is provided with a card slot (8) that slides and engages with the card head (7), the sliding direction of the card slot (8) is parallel to the sliding slope (5), and the card head (7) is provided with a vertical Straight bolt hole (9), the locking bolt (4) is threadedly matched with the bolt hole (9), and the upper end of the locking bolt (4) is provided with a pressing force for abutting against the upper surface of the clamping block (3). head (10). 2. The clamping fixture according to claim 1, characterized in that, the front end of the clamping block (3) is provided with a second inclined surface (11), and the second inclined surface (11) and the clamping block (3) The included angle of the bottom surface is an obtuse angle. 3. The clamping fixture according to claim 2, characterized in that a flexible pad (12) is provided on the second inclined surface (11), and the outer surface of the flexible pad (12) is a serrated surface. 4. The clamping fixture according to claim 1, characterized in that, the fixed block (2) is fixedly connected with the base plate (1) through positioning bolts (13), and several positioning pins are arranged on the base plate (1). Bolt holes (14), the fixed block (2) is provided with an avoidance through hole (15), and the positioning bolt (13) passes through the avoidance through hole (15) and is threadedly engaged with the positioning bolt hole (14). 5. The clamping fixture according to claim 4, characterized in that, several positioning bolt holes (14) are uniformly arranged in an array on the bottom plate (1). 6. The clamping fixture according to claim 4, characterized in that, the avoidance through hole (15) is a strip-shaped through hole. 7. The clamping jig according to claim 1, characterized in that, the cross sections of the chuck (7) and the groove (8) are both T-shaped.

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