Adjustable double-pressing-plate pneumatic clamp

Abstract

The utility model relates to the technical field of clamps, and discloses an adjustable double-pressing-plate pneumatic clamp which comprises a base, anti-damage mechanisms are arranged on the two sides of the top end of the base, and positioning mechanisms are arranged on the two anti-damage mechanisms. The positioning mechanism comprises moving seats slidably connected to the two sides of the top end of the base, square notches are formed in the ends, close to each other, of the two moving seats, fixing shafts are symmetrically and fixedly connected to the bottom ends of the two square notches, and positioning plates are rotatably connected to the outer walls of the two fixing shafts. Through the structure in the positioning mechanism, the circular workpiece can be quickly positioned, the condition of repeated adjustment is avoided, the adjustment time is saved, the subsequent machining efficiency effect is improved, and the problems that in the using process of a traditional clamp, the position of the workpiece needs to be adjusted, workers need to adjust the position repeatedly, and the machining efficiency is affected are solved. The adjustment time is prolonged, and the subsequent processing efficiency is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, concretely is adjustable double compression plate pneumatic clamp. BACKGROUND

[0002] In the machining process, the workpiece needs to be fixed for machining, usually a custom clamp for the workpiece shape is used to fix it, and the adjustable double compression plate pneumatic clamp is driven by air pressure to clamp and position the workpiece.

[0003] A kind of adjustable double compression plate pneumatic clamp is provided in Chinese patent, publication number CN214292103U, including guide rail column, clamping seat, first pneumatic pressing plate and second pneumatic pressing plate;The clamping seat is slidably connected on the guide rail of guide rail column;The first pneumatic pressing plate first cylinder bolt connection is on the upper surface of clamping seat;The first pneumatic pressing plate includes shelf board, first mounting column and first pressing plate;The shelf board is buckled on the end cover of first cylinder, one end of the first mounting column is connected to the piston end of first cylinder, and the other end is connected to the first pressing plate.

[0004] The above-mentioned clamp can be disassembled along the length direction of guide rail column, which can avoid the interference problem caused by too many peripheral equipment in actual use, but the position of workpiece needs to be adjusted during use, which requires workers to repeatedly adjust, increases the time used for adjustment, and affects the subsequent processing efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of adjustable double compression plate pneumatic clamp, to solve the problem that the position of workpiece needs to be adjusted during use of existing clamp, which requires workers to repeatedly adjust, increases the time used for adjustment, and affects the subsequent processing efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an adjustable double compression plate pneumatic clamp, including base, the base top end both sides are provided with anti-damage mechanism, two the anti-damage mechanism are provided with positioning mechanism on both sides;

[0007] The positioning mechanism includes mobile seat slidably connected on both sides of the top end of the base, two mobile seats are symmetrically fixed with fixed shaft at one end, two groups of fixed shaft outer wall are rotatably connected with positioning plate, two groups of fixed shaft top end are fixedly connected with fixed block, two groups of fixed block and two square notches are fixedly connected respectively, two square notches are symmetrically embedded with electric push rod at one end, two groups of electric push rod telescopic end are rotatably connected with sliding block, and two groups of sliding block and two groups of positioning plate are slidably connected.

[0008] Preferably, the anti-damage mechanism comprises two symmetrical grooves formed on the top end of the base, and the inner walls of the two grooves are slidably connected with two sliding plates.

[0009] Preferably, two recesses are formed at the bottom end of the two moving bases, and the two recesses and the two sliding plates are slidably connected respectively, and a first spring is fixedly connected between the two recesses and the two sliding plates.

[0010] Preferably, a threaded rod is rotatably connected to one side of the inner wall of each of the two grooves, and the two threaded rods and the two sliding plates are threadedly connected respectively.

[0011] Preferably, an electric motor is fixedly connected to each end of the base, and the driving end of each electric motor is fixedly connected with a threaded rod.

[0012] Preferably, a fixed frame is fixedly connected to each side of the outer wall of the moving base, and an electric cylinder is fixedly connected to the inner wall of each fixed frame symmetrically, and a pressure plate body is fixedly connected to the telescopic end of each electric cylinder, and the pressure plate body is slidably connected with the fixed frame.

[0013] Preferably, a plurality of second springs are fixedly connected to the bottom end of each pressure plate, and the two groups of second springs are fixedly connected with the two moving bases respectively.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1) The adjustable double-pressure-plate pneumatic clamp can automatically adjust the circular workpiece, ensure that the circular workpiece is above the circular hole, complete the rapid positioning of the circular workpiece, avoid repeated adjustment, save the adjustment time, and improve the subsequent processing efficiency.

[0016] 2) The adjustable double-pressure-plate pneumatic clamp can avoid excessive clamping force when clamping the circular workpiece, avoid damaging the outer wall of the circular workpiece, and ensure the integrity of the circular workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model a kind of adjustable double-pressure-plate pneumatic clamp;

[0018] Figure 2 It is a side view perspective drawing of the utility model a kind of adjustable double-pressure-plate pneumatic clamp;

[0019] Figure 3 It is a recess structure drawing of the utility model a kind of adjustable double-pressure-plate pneumatic clamp;

[0020] Figure 4 It is a positioning mechanism display drawing of the utility model a kind of adjustable double-pressure-plate pneumatic clamp.

[0021] In the figure: 1, base; 2, positioning mechanism; 201, moving seat; 202, square notch; 203, fixed shaft; 204, positioning plate; 205, fixed block; 206, electric push rod; 207, sliding block; 3, damage prevention mechanism; 301, sliding groove; 302, sliding plate; 303, groove; 304, first spring; 305, threaded rod; 306, motor; 307, fixed frame; 308, electric cylinder; 309, pressing plate body; 310, second spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Embodiment one

[0024] In combination with Figures 1-4 A double-presser pneumatic clamp with adjustable, comprising a base 1, the top end of the base 1 is provided with a damage prevention mechanism 3 on both sides, and the two damage prevention mechanisms 3 are provided with a positioning mechanism 2.

[0025] Referring to Figure 1 , Figure 2 and Figure 4 , it is further obtained that the positioning mechanism 2 comprises moving seats 201 slidingly connected to the top end of the base 1 on both sides, square notches 202 are formed in the end of the two moving seats 201 close to each other, fixed shafts 203 are symmetrically and fixedly connected to the bottom end of the two square notches 202, positioning plates 204 are rotatably connected to the outer wall of the two groups of fixed shafts 203, fixed blocks 205 are fixedly connected to the top end of the two groups of fixed shafts 203, the two groups of fixed blocks 205 and the two square notches 202 are fixedly connected respectively, electric push rods 206 are symmetrically and fixedly inlaid in the end of the two square notches 202 close to each other, sliding blocks 207 are rotatably connected to the telescopic end of the two groups of electric push rods 206, and the two groups of sliding blocks 207 and the two groups of positioning plates 204 are slidingly connected respectively.

[0026] Specifically, the circular workpiece can be placed on the square notch 202, and then the positioning plate 204 is used for positioning treatment of the circular workpiece, so that the circular workpiece is located directly above the circular hole, facilitating subsequent drilling treatment, and the positioning plate 204 is limited by the fixing shaft 203, and the included angle between the positioning plates 204 is changed, so that it can be suitable for circular workpieces of different diameters. The electric push rod 206 is controlled to move synchronously by the synchronous controller, and the positioning plate 204 can move synchronously under the cooperation of the sliding block 207, so that the positioning plate 204 can be automatically adjusted, which is convenient, fast and saves adjustment time.

[0027] Embodiment two

[0028] Reference Figures 1-3 And on the basis of embodiment one, it is further obtained that the anti-damage mechanism 3 comprises two sliding grooves 301 symmetrically formed at the top end of the base 1, two sliding plates 302 are slidably connected to the inner walls of the two sliding grooves 301, two recesses 303 are formed at the bottom ends of the two moving seats 201, the two recesses 303 and the two sliding plates 302 are respectively slidably connected, a first spring 304 is fixedly connected between the two recesses 303 and the sliding plates 302, a threaded rod 305 is rotatably connected to one side of the inner wall of each sliding groove 301, the two threaded rods 305 and the two sliding plates 302 are respectively threadedly connected, two motors 306 are fixedly connected to the two ends of the base 1, the driving ends of the two motors 306 and the two threaded rods 305 are respectively fixedly connected, two fixed frames 307 are fixedly connected to the outer walls of the two moving seats 201, two electric cylinders 308 are symmetrically fixedly connected to the inner walls of the two fixed frames 307, a pressure plate body 309 is fixedly connected to the extension end of each electric cylinder 308, the two pressure plate bodies 309 are slidably connected to the fixed frame 307, a plurality of second springs 310 are fixedly connected to the bottom end of each pressure plate, and the two second springs 310 and the two moving seats 201 are respectively fixedly connected.

[0029] Specifically, the sliding plate 302 is limited by the sliding groove 301, and when the sliding plate 302 moves, the first spring 304 in the extrusion recess 303 can be compressed, so that the surface of the circular workpiece can be prevented from being damaged when the circular workpiece is clamped, and the integrity of the outer wall of the circular workpiece is ensured. When the motor 306 is controlled by the synchronous controller, the motor rotates synchronously, so that the threaded rods 305 on both sides can rotate. Since the screw directions of the threaded rods 305 on both sides are opposite, the sliding plates 302 can move towards each other, and the moving seats 201 can also move towards each other, so that the clamping operation of the circular workpiece is completed. Then, the electric cylinder 308 is controlled by the synchronous controller to move synchronously, so that the pressure plate body 309 can be pressed above the circular workpiece, and the circular workpiece can be further clamped and fixed, so that the top of the circular workpiece can be prevented from being damaged, the integrity of the circular workpiece is ensured, and the circular workpiece can be clamped and fixed, so that the stability of the workpiece during drilling is ensured.

[0030] In actual operation, first, the circular workpiece can be placed on the square notch 202, and then the synchronous controller controls the electric push rod 206 to push the sliding block 207 to move, because the sliding block 207 and the positioning plate 204 are slidingly connected, so that the positioning plate 204 can move synchronously, and the circular workpiece is above the circular hole, the positioning of the circular workpiece is completed, repeated adjustment is avoided, the adjustment time is saved, and the subsequent processing efficiency is improved.

[0031] And after adjustment, the synchronous controller controls the motor 306 to rotate with the threaded rod 305, and the sliding plate 302 can move towards each other through the threaded effect of the threaded rod 305, so that the moving seat 201 can be moved, and the outer wall of the circular workpiece is clamped. Because of the existence of the first spring 304, it can prevent the clamping force from being too large, avoid damaging the outer wall of the circular workpiece, and through the synchronous controller control electric cylinder 308 with the pressure plate body 309 downward movement, so that the top of the circular workpiece can be clamped and fixed. Because of the existence of the second spring 310, it can prevent the downward pressure from being too large, prevent damage to the top of the circular workpiece, and ensure the integrity of the circular workpiece.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable two-plate pneumatic clamp comprising a base (1), characterised in that: The bottom (1) top two sides are provided with anti-damage mechanism (3), two said anti-damage mechanism (3) are provided with positioning mechanism (2) on both sides of the top end of the base (1); The positioning mechanism (2) includes the moving seat (201) slidably connected to the top two sides of the base (1), the moving seat (201) is provided with a square notch (202) at one end, the square notch (202) is fixedly connected with a fixed shaft (203) at the bottom end, the fixed shaft (203) is rotatably connected with a positioning plate (204), the fixed shaft (203) is fixedly connected with a fixed block (205) at the top end, the fixed block (205) and the square notch (202) are fixedly connected, the square notch (202) is symmetrically embedded with an electric push rod (206) at one end, the electric push rod (206) is rotatably connected with a sliding block (207) at the extension end, and the sliding block (207) and the positioning plate (204) are slidably connected.

2. An adjustable dual platen pneumatic fixture according to claim 1, wherein: The anti-damage mechanism (3) includes a chute (301) symmetrically provided on the top end of the base (1), and the chute (301) is slidably connected with a sliding plate (302) on the inner wall.

3. An adjustable dual platen pneumatic fixture according to claim 2, wherein: The moving seat (201) is provided with a groove (303) at the bottom end, and the groove (303) and the sliding plate (302) are slidably connected, and the groove (303) and the sliding plate (302) are fixedly connected with a first spring (304).

4. An adjustable dual platen pneumatic fixture according to claim 3, wherein: The sliding groove (301) is rotatably connected with a threaded rod (305) on one side of the inner wall, and the threaded rod (305) and the sliding plate (302) are threadedly connected.

5. An adjustable dual platen pneumatic clamp according to claim 4, wherein: The base (1) is fixedly connected with a motor (306) at both ends, and the motor (306) is fixedly connected with a threaded rod (305) at the driving end.

6. An adjustable dual platen pneumatic clamp according to claim 5, wherein: The moving seat (201) is fixedly connected with a fixed frame (307) on the outer wall of both sides, and the fixed frame (307) is fixedly connected with an electric cylinder (308) on the inner wall, and the electric cylinder (308) is fixedly connected with a pressure plate body (309) at the extension end, and the pressure plate body (309) and the fixed frame (307) are slidably connected.

7. An adjustable dual platen pneumatic clamp according to claim 6, wherein: The moving seat (201) is fixedly connected with a plurality of second springs (310) at the bottom end, and the second springs (310) are fixedly connected with the moving seat (201).

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