Array type flexible clamp with adjustable supporting force

Abstract

The utility model relates to the technical field of flexible clamps, and particularly discloses an array type supporting force adjustable flexible clamp which comprises a shell, a transverse plate, a supporting column, a pressing block, a locking bolt and an air nozzle. The shell comprises a base and a box body, a transverse plate is arranged in the box body, and a ventilation area is arranged below the transverse plate; the supporting column array is installed in the array type positioning holes of the transverse plate in a penetrating mode. The supporting column comprises a contact head, a supporting connecting rod, a positioning rod and a guide rod, and the spherical contact head can be made of different materials and in different forms to adapt to various parts; semi-cylindrical protrusions are arranged on the surfaces of the pressing blocks, and the pressing blocks are installed on the two adjacent sides of the inner wall of the box body. Compressed air is introduced into the ventilation area through the air nozzle, adjustable supporting force is provided, and the locking bolt is screwed to push the pressing block to press and fix the supporting column array. The device is simple in structure, convenient to operate and suitable for rapid supporting and stable positioning of various parts, and has universality and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible clamps, in particular to an array-type flexible clamp with adjustable supporting force. Background Art

[0002] With the rapid development of the manufacturing industry, the demand for positioning and clamping for the machining and inspection of high-precision, complex-contour parts is increasing. Conventional fixtures are typically used for rigid parts. However, flexible clamping is required for parts with complex shapes, a wide variety of types, and easy deformation. The fixtures used for this type of clamping must be versatile and reliable, able to flexibly conform to the surface contours of various types of parts and provide stable support. While providing fast clamping and effective positioning for parts, they must also ensure that the parts do not deform due to clamping and squeezing. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the present invention provides an array-type flexible clamp with adjustable support force, which has a simple structure and is easy to operate. The purpose of the present invention is achieved through the following technical solutions:

[0004] The air filter press is connected to the air filter housing, and the air filter housing is connected to the air filter housing, and the air filter housing is connected to the air filter housing.

[0005] Preferably, the side length of the square column of the base is smaller than the side length of the outer wall of the box; the base bottom plate is square in shape, and the side length is equal to the side length of the outer wall of the box; the four corners of the base bottom plate are provided with positioning holes for fixation; the base can be spliced with multiple array-type flexible clamps with adjustable support force along the four directions of the square bottom plate for combined use.

[0006] Preferably, the contact head is connected to one end of the supporting connecting rod by a bolt and contacts the workpiece; the contact head can be replaced with different materials and forms, such as magnetic spheres, silicone spheres, vacuum suction cups, etc., to adapt to different types of workpieces; the supporting connecting rod and the guide rod are fixedly connected to the two ends of the positioning rod respectively; the positioning rod is a polygonal column, which is convenient for multiple surfaces to contact each other and limit the freedom of fixation when pressed; the guide rod is a cylinder, which slides one by one with the guide holes on the horizontal plate.

[0007] Preferably, a semi-cylindrical protrusion is provided on the surface of the pressing block, which cooperates with the polygonal column of the positioning rod to facilitate pressing the positioning rod to fix each supporting column.

[0008] Preferably, the guide rod is a three-section structure, the upper section slides in cooperation with the guide hole, the outer diameter of the middle section is larger than the aperture of the guide hole of the horizontal plate 3 and plays a limiting role, and the lower section contacts the bottom surface of the box body and plays a supporting role.

[0009] Preferably, when the flexible clamp is used alone, a single air nozzle is connected to the compressed gas and the remaining air nozzles are closed; when the flexible clamp is used in combination, the air nozzles in opposite directions of the combination can be connected to each other through pipes and connected to the compressed gas in a unified manner.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model has a simple structure, convenient operation, strong versatility and reliability, and high clamping efficiency and precision.

[0012] 2. The utility model adopts an array of support columns, which can adapt to parts with various contours.

[0013] 3. The utility model adopts a detachable and replaceable contact head, which can adapt to parts of different materials.

[0014] 4. The utility model adopts a cylindrical guide rod and a polygonal positioning rod to ensure that the support column slides up and down smoothly and is clamped firmly.

[0015] 5. The pressing block of the present invention is provided with a semicircular protrusion to ensure that the support column is more firmly pressed and fixed.

[0016] 6. The utility model can change the air pressure of the intake air to adjust the supporting force of the support column, and can adapt to parts of different weights.

[0017] 7. The utility model adopts a square base, which can be used in combination and can adapt to parts of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar or repeated elements are not repeatedly labeled in the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0019] Attachment Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Attachment Figure 2 This is a structural diagram of the housing, transverse plate, and pressing block in the utility model;

[0021] Attachment Figure 3 It is a cross-sectional view of the utility model;

[0022] Attachment Figure 4 It is a structural diagram of the support column in the utility model;

[0023] Explanation of the accompanying figures: 1. Shell; 11. Base; 12. Box body; 2. Support column; 21. Contact head; 22. Support connecting rod; 23. Positioning rod; 24. Guide rod; 3. Cross plate; 4. Locking bolt; 5. Clamping block; 6. Air nozzle. DETAILED DESCRIPTION

[0024] This embodiment illustrates the technical solution of the present invention using a flexible fixture comprising 161 support columns 2 and hexagonal positioning rods 23. The number of support columns 2 can be varied based on actual needs. Since the box 12 is a cubic structure and the base 11 has mounting holes on its square bottom plate, the flexible fixture can be assembled and used in various configurations to suit different working conditions.

[0025] like Figure 1-4 As shown, the support columns 2 are installed in an array on the horizontal plate 3 in the box body 12, and the ventilation area is below the horizontal plate 3. Figure 4 As shown, the support column 2 includes a contact head 21, a support connecting rod 22, a positioning rod 23 and a guide rod 24. The support connecting rod 22 and the guide rod 24 are fixedly connected to the two ends of the positioning rod 23 respectively. The positioning rod 23 is a hexagonal column, which can limit multiple degrees of freedom when in contact with each other. The guide rod 24 is a three-section structure. The upper section slides in cooperation with the guide hole. The outer diameter of the middle section is larger than the aperture of the guide hole of the cross plate 3 and plays a limiting role. The lower section contacts the bottom surface of the box body 12 to play a supporting role. The contact head 21 is bolted to one end of the support connecting rod 22. The contact head 21 is a ball head, which contacts the workpiece. The ball head is a magnetic material and has adsorption force on some metal workpieces. Since the contact head 21 is bolted to the support connecting rod 22, the contact head 21 can be replaced with a silicone material for fragile workpieces, or replaced with a suction cup type for smooth and flat workpieces.

[0026] The inside of the square cylinder installed on the base 11 is a ventilation area, and the four outer cylinders are installed with air nozzles 6. Compressed air is introduced into the ventilation area through the air nozzles 6. The compressed air squeezes the guide rod 24 to lift the support column 2, providing support force for the support column 2. Due to the different characteristics of different workpieces, the support force required by the support column 2 is different. For example, a workpiece with a surface that is easily deformed requires a smaller support force, and the support force can be adjusted by changing the air pressure of the compressed gas. When the flexible clamp is not in use and no gas is introduced, the support column 2 falls with gravity. When the flexible clamp is used alone, a single air nozzle 6 is connected to the compressed gas, and the remaining air nozzles 6 are closed; when the flexible clamp is used in combination of multiple, the air nozzles 6 in opposite directions of the combination are connected to each other through pipes and are uniformly connected to the compressed gas.

[0027] The use process of the present utility model is as follows: compressed air of a certain pressure is introduced into the fixture, a part is placed on top of the support column 2, the workpiece is pressed or the support column 2 is pressed down by its own weight, the contact head 21 is in close contact with the surface of the part to form a stable and conformable array-type multi-point support, and the locking bolts 4 on the adjacent two sides push the clamping blocks 5 on the adjacent two sides to squeeze the positioning rods 23 from different directions. The semi-circular protrusions on the clamping blocks 5 are in close contact with the surface of the positioning rods 23 outside the array and continuously push, thereby making the hexagonal positioning rods 23 in the array contact each other on multiple sides, mutually restricting the degrees of freedom, and finally fixed. Then, the locking bolts 4 are tightened to fix the shape of the support column 2. The semi-cylindrical protrusions on the surfaces of the two clamping blocks 5 can fully compress and fix the support column 2.

Claims

1. An array-type flexible clamp with adjustable support force, comprising a housing (1), a support column (2), a transverse plate (3), a locking bolt (4), a pressing block (5) and an air nozzle (6), characterized in that: The housing (1) includes a base (11) and a box (12); the base (11) includes a square column and a bottom plate, the interior of the square column is hollow as a ventilation area, and air nozzles (6) are provided on the four sides of the outside; the air nozzles (6) can be connected to an air compressor to connect compressed air to the ventilation area; the box (12) is a cubic structure, and a horizontal plate (3) is provided inside it; the horizontal plate (3) has array-type uniformly distributed guide holes, the upper part of which is a support positioning area, and the lower part is a ventilation area; the support column (2) includes a contact head (21), a support connecting rod (2 2), positioning rods (23) and guide rods (24), the support columns (2) are distributed in an array, pass through the guide holes of the transverse plate (3), and can slide up and down, and the supporting force of the support columns (2) is controlled and adjustable by the air pressure of the compressed air; the clamping blocks (5) are arranged on the adjacent two sides of the inner wall of the box body (12), and are respectively connected with locking bolts (4); the locking bolts (4) pass through the adjacent side walls of the box body (12) and are threadedly connected to the side walls, and by turning the locking bolts (4), the clamping blocks (5) are pushed to contact and tighten with the outermost positioning rod (23).

2. The array-type flexible clamp with adjustable support force according to claim 1, characterized in that: The side length of the square column of the base (11) is smaller than the side length of the outer wall of the box (12); the bottom plate of the base (11) is in the shape of a square, and the side length is equal to the side length of the outer wall of the box (12); the four corners of the bottom plate of the base (11) are provided with positioning holes for fixing; the base (11) can be spliced with a plurality of the array-type flexible clamps with adjustable support force along the four directions of the bottom plate square for combined use.

3. The array-type flexible clamp with adjustable support force according to claim 1, characterized in that: The contact head (21) is connected to one end of the supporting connecting rod (22) by a bolt and contacts the workpiece; the contact head (21) is a magnetic sphere, a silicone sphere or a vacuum suction cup to adapt to different types of workpieces; the supporting connecting rod (22) and the guide rod (24) are fixedly connected to the two ends of the positioning rod (23) respectively; the positioning rod (23) is a polygonal column, which is convenient for multiple surfaces to contact each other and limit the degree of freedom when pressed; the guide rod (24) is a cylinder, which is slidably matched with the guide holes on the horizontal plate (3).

4. The array-type flexible clamp with adjustable support force according to claim 1, characterized in that: The surface of the pressing block (5) is provided with a semi-cylindrical protrusion, which cooperates with the polygonal column of the positioning rod (23) to facilitate pressing the positioning rod (23) to fix each support column (2).

5. The array-type flexible clamp with adjustable support force according to claim 1, characterized in that: The guide rod (24) is a three-section structure, the upper section slides in cooperation with the guide hole, the middle section has an outer diameter larger than the diameter of the guide hole of the horizontal plate (3) and plays a limiting role, and the lower section contacts the inner bottom surface of the box body (12) and plays a supporting role.

6. The array-type flexible clamp with adjustable support force according to claim 1, characterized in that: When the array-type flexible clamp with adjustable support force is used alone, a single air nozzle (6) is connected to compressed gas, and the remaining air nozzles (6) are closed; when a plurality of the array-type flexible clamp with adjustable support force are used in combination, the air nozzles (6) in opposite combination directions are connected to each other through pipes and are uniformly connected to compressed gas.

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