Inner support air cylinder clamp

Abstract

The utility model relates to the technical field of clamps, in particular to an inner supporting air cylinder clamp which comprises a supporting frame, the supporting frame is provided with an inner supporting structure, the inner supporting structure comprises an inner supporting column longitudinally moving along the supporting frame and a plurality of inner supporting blocks arranged on the periphery of the inner supporting column, and inclined plane arc-shaped grooves in sliding fit with the inner supporting column are formed in the inner supporting blocks. The inner supporting block can be in sliding fit with the slope arc-shaped groove of the inner supporting block when longitudinally lifted so as to drive the inner supporting block to be propped open in a radial moving mode. A product needing to be positioned is arranged on the inner supporting block in a sleeving mode, at the moment, a gap is formed between the inner supporting block and the product, the loosening phenomenon can occur, the inner supporting block can be taken down, and when clamping positioning is needed, the inner supporting column is jacked up, the inner supporting column is in sliding fit with the inclined face arc-shaped groove of the inner supporting block, the inner supporting block is expanded in a radial moving mode, the outer wall of the inner supporting block is attached to the product, and expanding clamping is achieved. Products can be prevented from loosening, polishing and grinding of the products are facilitated, and efficiency is better.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to an inner support cylinder jig. Background Art

[0002] For the outer surface of the product to be polished, most of the existing products use manual polishing. In order to improve the processing efficiency and quality, the product is now placed in a drum for automatic polishing, and a corresponding processing fixture needs to be developed for production operations.

[0003] A positioning fixture for polishing provided by the utility model with the application number CN202323151125.8 includes an upper pressing block and a lower pressing block. The upper pressing block is detachably connected above the lower pressing block. The lower pressing block is provided with a first placing part penetrating through the front and rear sides of the lower pressing block. Several positioning columns for placing suction nozzles are arranged in the first placing part. Several limiting columns corresponding to the positions of the positioning columns are arranged below the upper pressing block. The suction nozzle is between the positioning column and the limiting column, and both the positioning column and the limiting column are inserted into the suction nozzle. Both the positioning column and the limiting column are frustum structures. The installation method is simple, the manufacturing cost is low, and it can achieve all-round polishing of the outer surface of the suction nozzle in mechanical polishing to ensure the polishing quality of the suction nozzle.

[0004] When the existing product is positioned, it is usually fixed on the fixture by locking screws for operation. Using the above scheme, the efficiency is low, and it is easy to miss locking, resulting in the product flying off and damaging the machine. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an inner support cylinder jig aiming at the deficiencies of the prior art.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] The inner support cylinder jig includes a support frame. The support frame is provided with an inner support structure. The inner support structure includes an inner support column moving longitudinally along the support frame and a plurality of inner support blocks arranged around the inner support column. The inner support blocks are formed with inclined surface arc grooves slidably matched with the inner support column. When the inner support blocks rise longitudinally, they can be slidably matched with the inclined surface arc grooves of the inner support blocks to drive the inner support blocks to move radially and be expanded.

[0008] Further: The cross-section of the inner support block is a sector block, and a plurality of inner support blocks are mutually attached to form a cylindrical structure capable of positioning the product.

[0009] Further: The support frame is provided with a guide seat for guiding the inner support column to pass through. The guide seat is formed with a guide hole coaxially matched with the inner support column.

[0010] Furthermore: the bottom of the inner support block is integrally connected with the guide seat; when the inner support block is longitudinally raised, it can slide with the inclined arc groove of the inner support block to drive the upper part of the inner support block to move radially and be stretched open.

[0011] Further: the support frame includes a top frame and a bottom frame, and the top frame is formed with a top hole coaxially aligned with the guide hole.

[0012] Furthermore: the top frame and the bottom frame are arranged at intervals, the bottom frame is equipped with a lifting cylinder, and the driving end of the lifting cylinder is connected to the inner support column.

[0013] Furthermore: a conical block is formed on the top of the inner support column and is slidably matched with the inclined arc groove.

[0014] The beneficial effects of the utility model are as follows: the product to be positioned is placed on the inner support block. At this time, there is a gap between the inner support block and the product, which may cause looseness and can be removed. When clamping and positioning is required, the inner support column is lifted up, and the inner support column and the inclined arc groove of the inner support block are slidably matched. The inner support block is radially moved and stretched open, and the outer wall of the inner support block fits with the product to achieve stretching and clamping, which can prevent the product from loosening, facilitate the polishing and grinding of the product, and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the inner support cylinder fixture.

[0016] Figure 2 This is a structural diagram of the coordination between the internal support cylinder fixture and the product.

[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure.

[0018] Reference numerals include:

[0019] 1-Support frame,

[0020] 11-internal support structure, 12-internal support block, 13-inclined arc groove, 14-internal support column, 15-conical block,

[0021] 16-guide seat, 17-guide hole, 18-top frame, 19-bottom frame, 20-lifting cylinder, 21-product, 22-top hole. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings.

[0023] like Figures 1-3As shown in the figure, the inner support cylinder fixture includes a support frame 1. The support frame 1 is provided with an inner support structure 11. The inner support structure 11 includes an inner support column 14 that moves longitudinally along the support frame 1 and a plurality of inner support blocks 12 arranged around the outer periphery of the inner support column 14. The inner support blocks 12 are formed with inclined surface arc grooves 13 that are slidably matched with the inner support column 14. When the inner support blocks 12 rise longitudinally, they can be slidably matched with the inclined surface arc grooves 13 of the inner support blocks 12 to drive the inner support blocks 12 to move radially and be expanded.

[0024] The product 21 to be positioned is sleeved on the inner support blocks 12. At this time, there is a gap between the inner support blocks 12 and the product 21, and there will be a loosening phenomenon and it can be removed. When clamping and positioning are required, the inner support column 14 is lifted. The inner support column 14 is slidably matched with the inclined surface arc grooves 13 of the inner support blocks 12. The inner support blocks 12 are expanded by moving radially. The outer walls of the inner support blocks 12 are attached to the product 21, realizing expansion and clamping, which can prevent the product 21 from loosening and facilitate the polishing and grinding of the product 21, with better efficiency.

[0025] Furthermore, the cross-section of the inner support block 12 is in the shape of a sector block. A plurality of inner support blocks 12 are mutually attached to form a cylindrical structure capable of positioning the product 21, which can position the product 21 with a cylindrical structure. The cylindrical structure is inserted into the product 21 with a cylindrical structure. Adjacent two inner support blocks 12 are arranged with a gap between them. When the inner support column 14 is lifted, all the inner support blocks 12 move radially, and the overall diameter increases, and they are attached in contact with the inner wall surface of the product 21, which can improve the stability of clamping and prevent the product 21 from falling off.

[0026] Furthermore, a tapered block 15 that is slidably matched with the inclined surface arc groove 13 is formed at the top of the inner support column 14. The inclined surface of the tapered block 15 is slidably matched with the inclined surface arc groove 13. The inner support blocks 12 are radially expanded under the action of force and are attached in contact with the inner wall surface of the product 21, which can improve the stability of clamping.

[0027] Furthermore, when a plurality of inner support blocks 12 are mutually attached, a plurality of inclined surface arc grooves 13 form a circular hole that is coaxially aligned with the inner support column 14. When it is expanded, the circular hole is dispersed into a plurality of sector holes.

[0028] Furthermore, the support frame 1 is provided with a guide seat 16 for guiding the inner support column 14 to pass through. The guide seat 16 is formed with a guide hole 17 that is coaxially matched with the inner support column 14. Under the guiding action of the guide hole 17, the inner support column 14 can perform axial lifting and lowering movements. When it rises, under the sliding cooperation of the inclined surfaces, it can drive all the inner support blocks 12 to move radially and expand simultaneously, and be attached to the product 21, realizing inner support clamping and positioning of the product 21.

[0029] Furthermore, the bottom of the inner support block 12 is integrally connected to the guide seat 16; when the inner support block 12 is raised longitudinally, it can slide with the inclined arc groove 13 of the inner support block 12 to drive the upper half of the inner support block 12 to move radially and be stretched open; since the bottom of the inner support block 12 is integrally connected to the guide seat 16, the inner support block 12 will not detach from the guide seat 16 when stretched open, and when not stretched open, the inner support block 12 always maintains an axial arrangement, which is convenient for the insertion of the product 21.

[0030] The support frame 1 includes a top frame 18 and a bottom frame 19. The top frame 18 is formed with a top hole 22 coaxially aligned with the guide hole 17. The guide seat 16 is installed on the top frame 18. The top frame 18 and the bottom frame 19 are arranged at intervals. The bottom frame 19 is installed with a lifting cylinder 20, and the driving end of the lifting cylinder 20 is connected to the inner support column 14. When it is necessary to clamp the product 21, the lifting cylinder 20 works, and the driving end of the lifting cylinder 20 drives the inner support column 14 to rise. The inner support column 14 enters the inclined arc groove 13 of the inner support block 12 along the guide hole 17, and the upper half of the inner support block 12 is radially moved and stretched open. The outer wall of the inner support block 12 fits with the product 21 to achieve stretching and clamping, which can prevent the product 21 from loosening and facilitate the polishing of the product 21.

[0031] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value 21.

[0032] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. Inner support cylinder fixture, including a support frame, the support frame is provided with an inner support structure, characterized in that: The inner support structure includes an inner support column that moves longitudinally along the support frame, and a plurality of inner support blocks arranged around the inner support column. The inner support blocks are formed with inclined arc-shaped grooves that are slidably matched with the inner support column; when the inner support blocks rise longitudinally, they can be slidably matched with the inclined arc-shaped grooves of the inner support blocks to drive the inner support blocks to move radially and be expanded.

2. The internal support cylinder fixture according to claim 1, wherein: The cross-section of the inner support block is in the shape of a sector block, and a plurality of inner support blocks are mutually attached to form a cylindrical structure capable of positioning the product.

3. The internal support cylinder fixture according to claim 1, wherein: The support frame is provided with a guide seat for guiding the passage of the inner support column, and the guide seat is formed with a guide hole that is coaxially matched with the inner support column.

4. The inner support cylinder fixture according to claim 3, wherein: The bottom of the inner support block is integrally formed and connected with the guide seat; when the inner support block rises longitudinally, it can be slidably matched with the inclined arc-shaped groove of the inner support block to drive the upper half of the inner support block to move radially and be expanded.

5. The inner support cylinder fixture according to claim 4, characterized in that: The support frame includes a top frame and a bottom frame. The guide seat is installed on the top frame, and the top frame is formed with a top hole that is coaxially aligned with the guide hole.

6. The inner support cylinder fixture according to claim 5, wherein: The top frame and the bottom frame are arranged at intervals, and the bottom frame is installed with a lifting cylinder, and the driving end of the lifting cylinder is connected with the inner support column.

7. The internal support cylinder fixture according to claim 6, characterized in that: The top of the inner support column is formed with a tapered block that is slidably matched with the inclined arc-shaped groove.

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