CN216940247U - A change mechanism for mechanical fixture - Google Patents

Abstract

The utility model provides a replacing mechanism for a mechanical clamp, which relates to the technical field of mechanical manufacturing and comprises a base station, a sliding groove and a sliding block, wherein the top of the sliding block is symmetrically provided with a fixed disc, the top of the fixed disc is provided with a fixed groove, the top end of the fixed disc is provided with a clamp, the bottom of the clamp is provided with a connecting block, the fixed disc is internally provided with a fixing mechanism, and the sliding block is internally provided with a limiting mechanism. According to the utility model, the position of the slide block after movement is locked through the matching of the trapezoid block and the wedge block in the limiting mechanism, and then the position of the connecting block is locked through the matching of the bidirectional screw rod in the fixing mechanism and the clamping block after the connecting block is inserted into the fixing groove of the fixing disc, so that the clamp is fixed above the base station, and the purpose of replacing the clamp is further realized.

Description

A replacement mechanism for mechanical clamps

technical field

The utility model relates to the technical field of mechanical manufacturing, in particular to a replacement mechanism for a mechanical clamp.

Background technique

Fixture refers to the device used to fix the processing object in the process of mechanical manufacturing, so that it occupies the correct position to accept construction or inspection. In a broad sense, any process in the process is used to install quickly, conveniently and safely The device of the workpiece can be called a fixture.

With the progress of industrialization, fixtures are used more and more in the process of mechanical production. However, while the fixtures improve the production effect, there are also many shortcomings. The traditional replacement of machining fixtures is to add machine fixtures. Remove the clamps and their clamps from the machine tool together, then replace the clamps one by one, and then move the clamps and their clamps to the machine tool and calibrate them. This method is cumbersome and the speed of replacing the clamps is slow. Therefore, the utility model proposes A replacement mechanism for a mechanical jig is used to solve the above problems.

Utility model content

In view of the above problems, the present utility model proposes a replacement mechanism for a mechanical clamp, which has solved the problem of the traditional way of replacing the clamp being cumbersome.

In order to achieve the purpose of the present utility model, the present utility model is realized through the following technical solutions: a replacement mechanism for a mechanical fixture, comprising a base, a chute and a slider, the base is provided with a chute, and the slide is The inside of the slot is provided with a slider, the top of the slider is symmetrically provided with a fixed disk, the top of the fixed disk is provided with a fixed groove, the top of the fixed disk is installed with a clamp, and the bottom of the clamp is provided with a connecting block , the interior of the fixed plate is provided with a fixing mechanism, and the interior of the slider is provided with a limiting mechanism.

The fixing mechanism includes a clamping block, a bidirectional screw, a hexagonal screw hole and a limit block. The clamping block is symmetrically arranged in the interior of the fixing groove, and a bidirectional screw penetrates through the interior of the two clamping blocks. It is threadedly connected with the two-way screw, one end of the two-way screw is provided with a hexagonal screw hole, and the top of the clamping block is provided with a limit block.

A further improvement is that: the structure of the connecting block is a truncated cone, the inner wall of the fixing groove fits with the outer wall of the connecting block, the bottom end of the connecting block extends to the interior of the clamping block, and the interior of the clamping block is provided with The matching slot on the outer wall of the bottom end of the connection block.

A further improvement is that: there are springs under the interior of the fixing plate, the number of the springs is two, and the two clamping blocks are connected by the springs.

A further improvement is that: the limiting mechanism includes a bolt, a trapezoidal block, a wedge-shaped block and a tensioning block, the bolt penetrates the interior of the slider from top to bottom, the bolt is rotatably connected to the trapezoidal block through a bearing, and the slider is rotatably connected with the trapezoid block. The inside of the block is symmetrically provided with a tension block, the outer side of the tension block is connected with a wedge block, the trapezoid block is located in the middle of the two wedge blocks, and the hypotenuse of the bolt fits with the hypotenuse of the trapezoid block. .

A further improvement is that: a bar-shaped groove is arranged under the inside of the slider, a convex block is arranged under the tension block, the convex block is located inside the bar-shaped groove, and the tension block is connected to the bar through the convex block and the bar. Slotted sliding connection.

A further improvement is that: the interior of the fixed plate is provided with a through hole matching the clamping block, a moving groove is symmetrically arranged above the through hole, and the clamping block is slidably connected to the moving groove through a limit block.

A further improvement is that: the shape of the chute is an "I"-shaped structure, the bottom of the slider is provided with an extension block matching the chute, and the slider is slidably connected to the chute through the extension block.

The beneficial effects of the utility model are as follows: a limit mechanism is arranged inside the slider, and a fixing mechanism is arranged in the fixed plate above it, and by pushing the slider to slide in the chute, the position of the fixed plate above the fixed plate and the fixture are set. The position of the lower connecting block is aligned. Through the cooperation of the trapezoidal block and the wedge block in the limit mechanism, the tension block is driven to engage with the inner wall of the chute, and the position of the sliding block is locked, and then the connecting block is inserted into the fixed plate. After the inside of the fixing groove, the position of the connecting block is locked by the cooperation of the two-way screw in the fixing mechanism and the clamping block, so that the clamp is fixed above the base, and the purpose of replacing the clamp is realized. The replacement method simplifies the steps of fixture replacement and facilitates the replacement of the fixture.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the internal structure diagram of the fixed plate of the utility model;

FIG. 3 is a schematic structural diagram of the limiting mechanism of the present invention.

Among them: 1. Abutment; 2. Chute; 3. Slider; 4. Fixed plate; 5. Fixed groove; 6. Clamping block; 7. Two-way screw; 8. Hexagon screw hole; 9. Limit block; 10 , spring; 11, bolt; 12, trapezoidal block; 13, wedge block; 14, tension block; 15, clamp; 16, connecting block; 17, bar groove.

Detailed ways

In order to deepen the understanding of the present utility model, the present utility model will be described in further detail below with reference to the embodiments. The present embodiment is only used to explain the present utility model and does not constitute a limitation on the protection scope of the present utility model.

1, 2, and 3, this embodiment proposes a replacement mechanism for a mechanical fixture, including a base 1, a chute 2 and a slider 3. The base 1 is provided with a chute 2 inside, The inside of the chute 2 is provided with a slider 3, the top of the slider 3 is symmetrically provided with a fixed plate 4, the top of the fixed plate 4 is provided with a fixed groove 5, and the top of the fixed plate 4 is provided with a clamp 15. The bottom of the fixture 15 is provided with a connecting block 16, the interior of the fixing plate 4 is provided with a fixing mechanism, and the interior of the sliding block 3 is provided with a limit mechanism, first push the sliding block 3 inside the chute 2 Slide, adjust the fixing plate 4 to align with the connecting block 16 under the fixture 15, then the limit mechanism fixes the position of the slider 3, and after the connecting block 16 is inserted into the fixing groove 5 of the fixing plate 4, the connecting block 16 is fixed by the fixing mechanism. The position of the clamp 15 is locked, so that the clamp 15 is fixed above the base 1, thereby realizing the purpose of replacing the clamp 15.

The fixing mechanism includes a clamping block 6 , a bidirectional screw 7 , a hexagonal screw hole 8 and a limit block 9 . The clamping block 6 is symmetrically arranged inside the fixing groove 5 , and the two clamping blocks 6 are penetrated with a bidirectional screw. 7. The inner wall of the clamping block 6 is threadedly connected with the two-way screw 7. One end of the two-way screw 7 is provided with a hexagonal screw hole 8, and the top of the clamping block 6 is provided with a limit block 9. The two-way screw 7 is driven in the hole 8 to rotate forward, and the two-way screw 7 drives the clamping block 6 to move to the interior of the fixed plate 4, clamps the connecting block 16 at the bottom end of the clamp 15, and then fixes the clamp 15 on the base 1. When replacing, the inner hexagon is reversely rotated, and by driving the two-way screw 7 to reverse, the two-way screw 7 drives the clamping block 6 to move to the outside of the fixed plate 4, so that the connecting block 16 at the bottom end of the clamp 15 is no longer clamped, and the clamp 15 is removed from the clamp 15. After taking out the fixing plate 4 , insert the new clamp 15 into the fixing groove 5 , and drive the two-way screw 7 to rotate forward again through the inner hexagon to fix the new clamp 15 on the base 1 .

The structure of the connecting block 16 is a truncated cone, the inner wall of the fixing groove 5 fits with the outer wall of the connecting block 16 , the bottom end of the connecting block 16 extends to the inside of the clamping block 6 , and the interior of the clamping block 6 is provided with There is a card slot matched with the outer wall of the bottom end of the connection block 16, the inner wall of the card slot clamps the bottom end of the connection block 16, and seals the path of the horizontal movement of the connection block 16, and the upper end of the card slot enters the interior of the connection block 16, and the The path of the vertical movement of the connecting block 16 is blocked, so that the connecting block 16 is completely fixed therein after being inserted into the fixing groove 5 .

There is a spring 10 under the interior of the fixing plate 4, the number of the spring 10 is two, the two clamping blocks 6 are connected by the spring 10, and the elastic force generated by the spring 10 can slow down the generation of the clamping block 6 to the connecting block 16. The pressure of the clamp block 6 is too strong to prevent the bottom end of the connection block 16 from being deformed.

The limiting mechanism includes a bolt 11, a trapezoidal block 12, a wedge block 13 and a tensioning block 14. The bolt 11 penetrates the interior of the slider 3 from top to bottom, and the bolt 11 is rotatably connected with the trapezoidal block 12 through a bearing. , the inside of the slider 3 is symmetrically provided with a tension block 14, the outer side of the tension block 14 is connected with a wedge block 13, the trapezoid block 12 is located in the middle of the two wedge blocks 13, the bolt The hypotenuse of 11 fits with the hypotenuse of trapezoid block 12. When the position of slider 3 is adjusted, screw bolt 11 to drive trapezoid block 12 to move downward. The trapezoidal block 12 squeezes the wedge-shaped block 13 to move to the inner wall of the chute 2, thereby driving the tension block 14 to engage with the inner wall of the chute 2, thereby restricting the sliding block 3 from sliding in the chute 2, which is convenient for the sliding block. 3 Position lock after moving.

A strip-shaped groove 17 is provided below the interior of the slider 3, and a convex block is provided below the tensioning block 14. The convex block is located inside the strip-shaped groove 17, and the tensioning block 14 is connected to the tensioning block 14 through the convex block. The strip groove 17 is slidably connected, and the movement of the tension block 14 is restricted by the strip groove 17 , so that the wedge block 13 can drive it to move toward the inner wall of the chute 2 .

The interior of the fixed plate 4 is provided with a through hole matching the clamping block 6, and a moving slot is symmetrically arranged above the through hole. When the two-way screw 7 rotates, the clamp block 6 can slide horizontally inside the fixed plate 4 through the limit of the limit block 9 and the moving groove.

The shape of the chute 2 is an "I"-shaped structure. The bottom of the slider 3 is provided with an extension block that matches the chute 2. The slider 3 is slidably connected to the chute 2 through the extension block. By connecting the extension block at the bottom with the chute 2, and pushing the slider 3 to slide in the chute 2, the distance between the two sliders 3 can be changed to match the distance between the connecting blocks 16 at the bottom of the fixture 15. .

The replacement mechanism for the mechanical fixture is provided with a limit mechanism inside the slider 3, and a fixing mechanism in the fixed plate 4 above it to push the slider 3 to slide in the chute 2, so that the fixed plate above it The position of 4 is aligned with the position of the connecting block 16 under the fixture 15. Through the cooperation of the trapezoidal block 12 and the wedge block 13 in the limit mechanism, the tension block 14 is driven to engage with the inner wall of the chute 2, and the slider 3 is moved. After the connecting block 16 is inserted into the fixing groove 5 of the fixing plate 4, the position of the connecting block 16 is locked by the cooperation of the two-way screw 7 in the fixing mechanism and the clamping block 6, thereby fixing the clamp 15. Above the abutment 1 , the purpose of replacing the fixture 15 is further achieved. The replacement method of inserting and positioning first and then fixing simplifies the replacement procedure of the fixture 15 and facilitates the replacement of the fixture 15 .

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention The new model will also have various changes and improvements, which all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A replacement mechanism for a mechanical fixture, comprising a base (1), a chute (2) and a slider (3), the base (1) is provided with a chute (2) inside, the slide A sliding block (3) is arranged inside the groove (2), and is characterized in that: the top of the sliding block (3) is symmetrically provided with a fixed disk (4), and the top of the fixed disk (4) is provided with a fixed groove ( 5), a clamp (15) is installed at the top of the fixing plate (4), a connecting block (16) is arranged at the bottom of the clamp (15), and a fixing mechanism is arranged inside the fixing plate (4), so A limit mechanism is provided inside the slider (3); The fixing mechanism includes a clamping block (6), a bidirectional screw (7), a hexagonal screw hole (8) and a limit block (9), the clamping block (6) is symmetrically arranged inside the fixing groove (5), and the two A bidirectional screw (7) runs through the inside of each of the clamping blocks (6), the inner wall of the clamping block (6) is threadedly connected with the bidirectional screw (7), and one end of the bidirectional screw (7) is provided with a hexagonal screw hole (8), a limit block (9) is provided on the top of the clamping block (6). 2 . The replacement mechanism for a mechanical clamp according to claim 1 , wherein the structure of the connecting block ( 16 ) is a truncated cone, and the inner wall of the fixing groove ( 5 ) is connected to the connecting block ( 16 ). 3 . ), the bottom end of the connecting block (16) extends to the interior of the clamping block (6), and the interior of the clamping block (6) is provided with a slot matching the outer wall of the bottom end of the connecting block (16). 3 . The replacement mechanism for a mechanical clamp according to claim 1 , wherein a spring ( 10 ) is arranged below the interior of the fixing plate ( 4 ), and the number of the spring ( 10 ) is two. 4 . Each of the two clamping blocks (6) is connected by a spring (10). 4. A replacement mechanism for a mechanical clamp according to claim 1, characterized in that: the limiting mechanism comprises a bolt (11), a trapezoidal block (12), a wedge-shaped block (13) and a tension block ( 14), the bolt (11) penetrates the interior of the slider (3) from top to bottom, the bolt (11) is rotatably connected with a trapezoidal block (12) through a bearing, and the interior of the slider (3) is symmetrical A tensioning block (14) is provided, the outer side of the tensioning block (14) is connected with a wedge-shaped block (13), the trapezoidal block (12) is located in the middle of the two wedge-shaped blocks (13), and the The hypotenuse of the bolt (11) fits with the hypotenuse of the trapezoidal block (12). 5. A replacement mechanism for a mechanical clamp according to claim 4, characterized in that: a strip groove (17) is provided under the inside of the slider (3), and the tension block (14) A bump is provided below the slug, the bump is located inside the strip groove (17), and the tension block (14) is slidably connected to the strip slot (17) through the bump. 6 . The replacement mechanism for a mechanical clamp according to claim 1 , wherein: the interior of the fixing plate ( 4 ) is provided with a through hole matching the clamping block ( 6 ). A moving groove is symmetrically arranged above, and the clamping block (6) is slidably connected with the moving groove through a limit block (9). 7. A replacement mechanism for a mechanical fixture according to claim 1, characterized in that: the shape of the chute (2) is an "I"-shaped structure, and the bottom of the slider (3) is provided with An extension block matched with the chute (2), the sliding block (3) is slidably connected with the chute (2) through the extension block.

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