Positioning clamp for clamping

Abstract

The utility model relates to the technical field of clamps, in particular to a positioning clamp for clamping, which comprises a bottom plate, a mounting plate, a clamping block and a driving cylinder, an inclined push block is mounted on the surface of a mounting groove, the inclined push block is structurally and symmetrically positioned at one end of the mounting groove, and the inclined push block is of a left-right opening and closing structure; the left-right opening and closing structure of the inclined push block is adopted, so that the clamping block can clamp a workpiece more accurately, it is ensured that the workpiece does not displace in the machining process, the coaxiality of the workpiece in the assembling process is kept, the clamping block can evenly apply pressure through the design of the inclined push block, workpiece deformation or damage caused by too large local stress is avoided, and the machining efficiency is improved. During operation, the clamping block can be ejected to the surface of the inclined push block only by controlling the action of the push rod through the driving air cylinder, rapid clamping and loosening of the clamping block are completed, and operation is easy, convenient and rapid. When the clamping blocks abut against the surfaces of the inclined push blocks, acting force applied by the clamping blocks enables counter-acting force of the inclined push blocks to exert a locking effect on the clamping blocks, and the self-locking procedure is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially a positioning fixture for clamping. BACKGROUND

[0002] The positioning fixture is a tool or device used to fix workpieces during manufacturing, assembly or machining processes, ensuring their position is accurate and unchanging. It is widely used in mechanical processing, automobile manufacturing, electronic product assembly and other fields to ensure that workpieces remain stable during processing, measurement or assembly, thereby improving processing accuracy and production efficiency. Since most existing fixtures use clamping plates for clamping, the concentricity accuracy is high when assembling multiple pins, and a special clamping fixture is needed to clamp them to maintain their coaxiality during assembly. Therefore, the present inventor proposes a positioning fixture for clamping to solve the above technical problems. SUMMARY

[0003] The utility model aims at providing a technical solution to solve the above problems.

[0004] A positioning fixture for clamping, comprising a base plate, a mounting plate, a clamping block and a drive cylinder, the mounting plate is located at one end of the base plate, the surface of the mounting plate is provided with a mounting groove for placing the clamping block, the surface of the mounting groove is provided with an inclined push block, the inclined push block is symmetrically located at one end of the mounting groove, and the surface of the inclined push block is in contact with the surface of the clamping block, the two sides of the clamping block are respectively provided with a positioning block, the surface of the clamping block is provided with a side plate, the side plate is used to clamp the inner wall of the positioning block, one end of the inclined push block is a clamping groove, one end of the drive cylinder is a push rod, one end of the push rod is provided with a push block, the surface of the push block is in abutment with the surface of the clamping block, and the inclined push block is a left-right opening and closing structure.

[0005] The left-right opening and closing structure of the inclined push block allows the clamping block to clamp the workpiece more accurately, ensuring that the workpiece does not shift during processing. The design of the inclined push block allows the clamping block to apply uniform pressure, preventing deformation or damage of the workpiece caused by excessive local stress. During operation, the action of the push rod can be controlled by the drive cylinder to push the clamping block against the surface of the inclined push block, achieving quick clamping and releasing of the clamping block. The left-right opening and closing structure can be adjusted flexibly according to different sizes of workpieces, suitable for clamping workpieces of various specifications, increasing the application range of the equipment. One end of the inclined push block can be connected to the cylinder, which can be locked by suction or release of the cylinder. When the clamping block is pushed against the surface of the inclined push block, the force exerted by the clamping block causes the inclined push block to exert a locking effect on the clamping block, completing the self-locking process.

[0006] Further, the surface of the positioning block is provided with a connecting hole for mounting a screw, and one end of the positioning block is attached to the inner wall of the mounting groove; the positioning block is fixed on the inner wall of the mounting groove by the screw passing through the connecting hole, which reduces the probability of displacement or loosening of the positioning block, provides more stable support, reduces the possibility of sliding or deviation of the clamping block during use, reduces installation errors, and ensures the precision of the clamp.

[0007] Further, the surface of the mounting groove is provided with a product, which is fixed by a fixing block, and the inclined pushing block is used for fixing the product; the surface of the product is provided with a limiting block, and one end of the limiting block is a top plate for limiting the sliding position of the inclined pushing block.

[0008] The fixing block plays a role in limiting the product in the mounting groove, ensuring that the product will not displace or loosen, and providing more stable support. The design of the limiting block and the top plate effectively limits the sliding range of the inclined pushing block, ensuring that it maintains a stable position during operation and avoiding unnecessary movement. At the same time, the limiting block limits the surface of both ends of the product, avoiding slipping or displacement of the product.

[0009] Further, the bottom of the inclined pushing block is a sliding plate, and the inclined pushing block and the sliding plate are an integral structure; the inclined pushing block and the sliding plate are connected in a T shape; the inclined pushing block is trapezoidal; one end of the inclined pushing block is rectangular; and a clamping groove is provided at one end of the rectangular end of the inclined pushing block. The T-shaped structure makes the inclined pushing block more stable when sliding, reducing the risk of tilting or deviation and ensuring the reliability of the clamp. The sliding plate provides a larger contact area, allowing the inclined pushing block to more evenly withstand the pressure from the driving cylinder, avoiding deformation or damage caused by excessive local stress.

[0010] Further, the inside of the clamping block is provided with a placement groove, and a top block is placed in the placement groove; the top block is used to press the product; and one end of the product is connected with a sleeve rod for pushing the thimble into the product. The top block can apply uniform pressure to the product when the clamping block moves, avoiding deformation or damage of the workpiece caused by excessive local stress. When the push rod and the pushing block pull the clamping block, the clamping block drives the top block to move up and down, thereby pushing the sleeve rod, allowing the sleeve rod to push the thimble into the product, completing the process of installing the thimble.

[0011] Further, the driving cylinder and the clamping block are a separate structure; one end of the driving cylinder is connected with a support plate for increasing the support force of the push rod; and the middle of the support plate is provided with a matching hole for pairing connection with the push rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are that: the left-right opening and closing structure of the inclined push block makes the clamp block be able to clamp the workpiece more accurately, ensures that the workpiece does not displace in the machining process, so as to keep the coaxiality thereof when assembling, and the design of the inclined push block makes the clamp block be able to apply pressure uniformly, avoids the deformation or damage of the workpiece caused by excessive local force, and only needs to control the action of the push rod through the driving cylinder during operation, so that the clamp block is pushed to the surface of the inclined push block, the clamp block is quickly clamped and released, and the operation is simple and fast;

[0013] The left-right opening and closing structure can be flexibly adjusted according to workpieces of different sizes, is suitable for clamping workpieces of various specifications, increases the application range of the equipment, one end of the inclined push block can be connected with the air cylinder, air suction or air release of the air cylinder plays the locking role, and when the clamp block is pushed to the surface of the inclined push block, the force applied by the clamp block makes the reaction force of the inclined push block apply the locking effect to the clamp block, and the self-locking process is completed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of a positioning clamp for clamping;

[0015] Figure 2 It is a perspective view of a positioning clamp for clamping;

[0016] Figure 3 It is a front view of a clamp block in a positioning clamp for clamping;

[0017] Figure 4 It is a perspective view of a clamp block in a positioning clamp for clamping;

[0018] Figure 5 It is another perspective view of a clamp block in a positioning clamp for clamping;

[0019] Figure 6 It is an explosion view of a clamp block in a positioning clamp for clamping;

[0020] Figure 7 It is another explosion view of a clamp block in a positioning clamp for clamping;

[0021] Figure 8 It is still another explosion view of a clamp block in a positioning clamp for clamping;

[0022] Figure 9 It is a perspective view of a sleeve joint rod in a positioning clamp for clamping;

[0023] Figure 10 It is an explosion view of a sleeve joint rod in a positioning clamp for clamping;

[0024] Figure 11 It is another explosion view of a sleeve joint rod in a positioning clamp for clamping;

[0025] Figure 12 is a reference schematic diagram of the positioning fixture in the air release state for clamping;

[0026] Figure 13 is a reference schematic diagram of the positioning fixture in the air suction state for clamping;

[0027] In the figure: base plate-1, mounting plate-2, clamping block-3, mounting groove-4, inclined push block-5, positioning block-6, side connecting plate-7, clamping groove-8, driving cylinder-9, push rod-10, push block-11, connecting hole-12, product-13, fixing block-14, limiting block-15, top plate-16, sliding plate-17, setting groove-18, top block-19, support plate-20, matching hole-21, sleeve connecting rod-22. DETAILED DESCRIPTION

[0028] The utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0029] In this embodiment, referring to Figures 1-13 , a positioning fixture for clamping, comprising a base plate 1, a mounting plate 2, a clamping block 3 and a driving cylinder 9, the mounting plate 2 is located at one end of the base plate 1, the surface of the mounting plate 2 is provided with a mounting groove 4 for placing the clamping block 3, the surface of the mounting groove 4 is provided with an inclined push block 5, the inclined push block 5 is symmetrically located at one end of the mounting groove 4, and the surface thereof is attached to the surface of the clamping block 3, the two sides of the clamping block 3 are respectively provided with a positioning block 6, the surface of the clamping block 3 is provided with a side connecting plate 7, the side connecting plate 7 is used for clamping the inner wall of the positioning block 6, one end of the inclined push block 5 is a clamping groove 8, one end of the driving cylinder 9 is a push rod 10, one end of the push rod 10 is provided with a push block 11, the surface of the push block 11 is in abutment with the surface of the clamping block 3, and the inclined push block 5 is a left-right opening and closing structure;

[0030] The left-right opening and closing structure of the inclined push block 5 enables the clamping block 3 to clamp the workpiece more accurately, ensures that the workpiece will not displace during the machining process, and the design of the inclined push block 5 enables the clamping block 3 to uniformly apply pressure, avoiding deformation or damage of the workpiece caused by excessive local force, and only the action of the push rod 10 needs to be controlled through the driving cylinder 9 during operation, so that the clamping block 3 can be pushed towards the surface of the inclined push block 5, the rapid clamping and loosening of the clamping block 3 can be realized, the operation is simple and fast, the left-right opening and closing structure can be flexibly adjusted according to workpieces of different sizes, is suitable for clamping workpieces of various specifications, increases the application range of the equipment, one end of the inclined push block 5 can be connected to a cylinder, and the cylinder can be used for air suction or air release to play a locking role, and when the clamping block 3 is pushed towards the surface of the inclined push block 5, the force applied by the clamping block 3 enables the counterforce of the inclined push block 5 to exert a locking effect on the clamping block 3, and the self-locking process is completed.

[0031] The surface of the positioning block 6 is provided with a connecting hole 12 for installing a screw, and one end of the positioning block 6 is attached to the inner wall of the mounting groove 4; the positioning block 6 is fixed on the inner wall of the mounting groove 4 by the screw passing through the connecting hole 12, which reduces the probability of displacement or loosening of the positioning block 6, provides more stable support, reduces the possibility of sliding or deviation of the clamping block 3 during use, reduces installation errors, and ensures the accuracy of the clamp.

[0032] The surface of the mounting groove 4 is provided with an article 13, which is fixed by a fixing block 14, and the inclined pushing block 5 is used to fix the article 13; the surface of the article 13 is provided with a limiting block 15, and one end of the limiting block 15 is a top plate 16 for limiting the sliding position of the inclined pushing block 5;

[0033] The fixing block 14 plays a role in limiting the article 1 in the mounting groove 4, ensuring that the article 13 will not displace or loosen, providing more stable support, while the design of the limiting block 15 and the top plate 16 effectively limits the sliding range of the inclined pushing block 5, ensuring that it maintains a stable position during operation, avoiding unnecessary movement, while the limiting block 15 limits the surface of both ends of the article 13, avoiding the phenomenon of slipping or displacement of the article 13.

[0034] The bottom of the inclined pushing block 5 is a sliding plate 17, and the inclined pushing block 5 and the sliding plate 17 are integrally formed; the inclined pushing block 5 and the sliding plate 17 are connected in a T shape, the inclined pushing block 5 is trapezoidal, one end of the inclined pushing block 5 is rectangular, and a clamping groove 8 is provided at one end of the rectangular end of the inclined pushing block 5; the T-shaped structure makes the inclined pushing block 5 more stable when sliding, reducing the risk of tilting or deviation, ensuring the reliability of the clamp, and the sliding plate 17 provides a larger contact area, so that the inclined pushing block 5 can more evenly bear the pressure from the driving cylinder 9, avoiding deformation or damage caused by excessive local stress.

[0035] The inside of the clamping block 3 is provided with a placement groove 18, and the inside of the placement groove 18 is placed with a top block 19, and the top block 19 is used to press the article 13; one end of the article 13 is connected with a sleeve rod 22 for pushing the thimble into the article 13; the placement groove 18 has a moving space at both ends, and when the clamping block 3 moves, the top block 19 can apply uniform pressure to the article 13, avoiding deformation or damage of the workpiece caused by excessive local stress; when the push rod 10 and the pushing block 11 pull the clamping block 3, the clamping block 3 drives the top block 19 to move up and down, so that the top block 19 pushes the sleeve rod 22, and the sleeve rod 22 pushes the thimble into the inside of the article 13, completing the process of installing the thimble.

[0036] The driving cylinder 9 and the clamping block 3 are in a separated structure, one end of the driving cylinder 9 is connected with a supporting plate 20 for increasing the supporting force of the push rod 10, and a matching hole 21 matched with the push rod 10 is formed in the middle of the supporting plate 20; the supporting plate 20 increases the supporting force of the push rod 10, ensures that the driving cylinder 9 is more stable during the working process, reduces vibration or shaking, uniformly bears the pressure from the driving cylinder 9, and avoids deformation or damage caused by excessive local stress.

[0037] The design points of the utility model lie in that: the left-right opening and closing structure of the inclined push block 5 makes the clamping block 3 more accurately clamp the workpiece, ensures that the workpiece will not displace during the machining process, and the design of the inclined push block 5 makes the clamping block 3 uniformly apply pressure, avoids workpiece deformation or damage caused by excessive local stress, and only needs to control the action of the push rod 10 through the driving cylinder 9 during operation, so that the clamping block 3 can be made to top the surface of the inclined push block 5, the quick clamping and loosening of the clamping block 3 are completed, and the operation is simple and fast;

[0038] The left-right opening and closing structure can be flexibly adjusted according to workpieces of different sizes, is suitable for clamping workpieces of various specifications, increases the application range of the equipment, one end of the inclined push block 5 can be connected with a cylinder, plays a locking role through cylinder suction or air release, and when the clamping block 3 tops the surface of the inclined push block 5, the action force of the clamping block 3 makes the reaction force of the inclined push block 5 exert a locking effect on the clamping block 3, and the self-locking process is completed.

[0039] The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and cannot be considered as limiting the specific implementation of the utility model to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, some simple deductions or substitutions can be made without departing from the concept of the utility model, and all of them should be considered as the protection range of the utility model.

Claims

1. A positioning fixture for clamping, comprising a base plate, a mounting plate, a clamping block, and a driving cylinder, characterized in that: The mounting plate is located at one end of the base plate. The surface of the mounting plate has a mounting groove for placing the clamping block. An inclined push block is installed on the surface of the mounting groove. The inclined push block is symmetrically located at one end of the mounting groove and its surface is in contact with the surface of the clamping block. Positioning blocks are installed on both sides of the clamping block. The surface of the clamping block is provided with a side plate for clamping the inner wall of the positioning block. One end of the inclined push block is a slot, and one end of the drive cylinder is a push rod. One end of the push rod is provided with a pushing block. The surface of the pushing block abuts against the surface of the clamping block. The inclined push block has a left and right opening and closing structure.

2. The positioning clamp for clamping according to claim 1, characterized in that: The surface of the positioning block is provided with a connecting hole for installing screws, and one end of the positioning block is fitted with the inner wall of the mounting groove.

3. A positioning clamp for clamping according to claim 1, characterized in that: The surface of the mounting groove is fitted with a product, which is fixed by a fixing block. An inclined push block is used to fix the product, and a limit block is installed on the surface of the product. One end of the limit block is a top plate that restricts the sliding position of the inclined push block.

4. A positioning clamp for clamping according to any one of claims 1-3, characterized in that: The bottom of the inclined push block is a sliding plate. The inclined push block and the sliding plate are integrally formed. The connection between the inclined push block and the sliding plate is T-shaped. The inclined push block is trapezoidal. One end of the inclined push block is rectangular. The slot is opened at one of the rectangular ends of the inclined push block.

5. A positioning clamp for clamping according to claim 3, characterized in that: The clamping block has an internal mounting groove, and a top block is placed inside the mounting groove. The top block is used to press the product, and one end of the product is connected to a sleeve rod for inserting the ejector pin into the product.

6. A positioning clamp for clamping according to any one of claims 1-3, characterized in that: The drive cylinder and the clamping block are separate structures. One end of the drive cylinder is connected to a support plate for increasing the support force of the push rod. The middle of the support plate has a mating hole for matching and connecting with the push rod.

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