Pneumatic machining clamp

Abstract

The utility model discloses a pneumatic processing clamp, including clamp and processing pipe fitting clamped on the clamp, the clamp includes lathe support, clamp table, cylinder and clamping portion, the clamp table is fixedly connected between the lathe support, the clamp table is provided with cylinder groove, the bottom of the cylinder is fixedly connected in the cylinder groove, and the clamping portion is provided with clamping portion. A movable output end of the top of the air cylinder is fixedly connected with the clamping part, a limiting concave ring and a limiting groove are formed in one side of the clamp table, a positioning concave ring and a positioning groove are formed in the other side of the clamp table, and the machined pipe fitting is connected to the limiting concave ring and the positioning concave ring in a clamped mode. According to the pneumatic machining clamp, the air cylinder is used for driving the clamping part to press downwards to clamp a machined pipe fitting on the clamp table, follow-up machining is facilitated, and machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe clamps, in particular to a pneumatic processing clamp. Background Art

[0002] With the development of mechanical processing technology, fixtures have become an indispensable part of mechanical processing. At present, fixture technology is developing in the direction of universality, high efficiency, accuracy, intelligence and environmental protection. The fixture is a device used to fix the workpiece in the mechanical processing process so that it occupies the correct position and has been constructed or tested. In industrial production, fixtures are widely used.

[0003] At present, when processing on CNC milling lathes, manual mechanical clamps are still used, which are inconvenient to clamp. Due to the inconsistent clamping force of the operator during each processing, the shape of the processed pipe parts is easily squeezed and deformed, affecting the dimensional accuracy of the processed pipe parts and resulting in defective processed pipe parts. In addition, the loading and unloading labor intensity is high, the time is long, and the processing efficiency is low. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model aims to provide a pneumatic processing fixture to solve the problems of low loading and unloading efficiency and inconsistent clamping force of the processing fixture in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pneumatic processing fixture comprises a fixture and a processing pipe fitting clamped on the fixture, the fixture comprises a lathe bracket, a fixture table, a cylinder and a clamping part, the fixture table is fixedly connected between the lathe brackets, a cylinder groove is provided on the fixture table, the bottom of the cylinder is fixedly connected in the cylinder groove, the movable output end of the cylinder top is fixedly connected to the clamping part, a limiting concave ring and a limiting groove are provided on one side of the fixture table, and a positioning concave ring and a positioning groove are provided on the other side of the fixture table, and the processing pipe fitting is clamped on the limiting concave ring and the positioning concave ring.

[0007] Compared with the prior art, the pneumatic machining fixture of the present application has the following beneficial effects:

[0008] In actual application, the fixture table is equipped with two sets of processing slots in different directions. After processing one side of the pipe is completed, it can be manually adjusted to the other side for processing. The pneumatic holding part reduces the steps of manual clamping and improves the processing efficiency. The cylinder ensures that the processed pipe is not easily deformed during extrusion, thereby improving the processing accuracy.

[0009] Preferably, a first protrusion is arranged in the limiting groove.

[0010] Beneficial effect: A groove is arranged on the cross section of the processed pipe fitting, and a first protrusion is arranged in the limiting groove to facilitate the matching connection with the groove and facilitate the fixation of the clamp.

[0011] Preferably, a first groove is formed in the positioning concave ring.

[0012] Beneficial effect: There is a pipeline protrusion on the side of the processed pipe fitting, and when it is fixed on the clamp, it can be adapted and connected through the first groove to avoid wear during clamping.

[0013] Preferably, the clamping portion is provided with a connecting through hole and a fixing through hole, the cylinder output end is arranged inside the connecting through hole, a connecting column is fixedly connected to the cylinder output end, and the connecting column passes through the fixing through hole and is fixedly connected to the clamping portion.

[0014] Beneficial effects: the output end of the cylinder passes through the connecting through hole, and the connecting column and the fixing through hole have a simple connection structure, which is easy to install and has low cost.

[0015] Preferably, both ends of the clamping portion are provided with pressing pieces, and both ends of the clamping portion are provided with pressing through holes, and the pressing pieces are inserted into the pressing through holes.

[0016] Beneficial effect: By arranging the clamping pieces at both ends of the clamping part, the clamping pieces can better fit the processed pipe fittings for clamping and fixing when the clamping part is pressed down.

[0017] Preferably, the pressing member is arranged directly above the limiting concave ring and the positioning concave ring.

[0018] Beneficial effect: The clamping piece is arranged just above the clamping of the processed pipe fitting to facilitate the downward pressing of the cylinder for clamping.

[0019] Preferably, tensioning rings are further provided on both sides of the connecting column, and the tensioning rings are clamped on the connecting column and abut against the clamping portion.

[0020] Beneficial effect: By arranging tensioning rings at both ends of the clamping part, the connection between the cylinder connecting column and the clamping part is fixed more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a pneumatic machining fixture provided by an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the structure of the fixture table provided in an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the structure of the cylinder and the clamping part provided in the embodiment of the utility model;

[0024] Figure 4A schematic diagram of the structure of a cylinder provided in an embodiment of the utility model;

[0025] Figure 5 A schematic diagram of the structure of the clamping portion provided in an embodiment of the utility model;

[0026] Figure 6 A schematic structural diagram of a processing pipe fitting provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0027] The following is further described in detail through specific implementation methods:

[0028] The figure marks in the drawings of the specification include: processing pipe fitting 1, lathe bracket 2, fixture table 3, cylinder 4, clamping part 5, cylinder groove 6, limiting concave ring 7, limiting groove 8, positioning concave ring 9, positioning groove 10, first protrusion 11, first groove 12, connecting through hole 13, fixing through hole 14, connecting column 15, clamping piece 16, clamping through hole 17, tensioning ring 18.

[0029] As attached Figure 1-6 As shown: This embodiment shows a pneumatic processing fixture, including a fixture and a processing pipe fitting 1 clamped on the fixture, the fixture includes a lathe bracket 2, a fixture table 3, a cylinder 4 and a clamping part 5, the fixture table 3 is fixedly connected between the lathe brackets 2, a cylinder groove 6 is provided on the fixture table 3, the bottom of the cylinder 4 is fixedly connected in the cylinder groove 6, the movable output end at the top of the cylinder 4 is fixedly connected to the clamping part 5, a limiting concave ring 7 and a limiting groove 8 are provided on one side of the fixture table 3, and a positioning concave ring 9 and a positioning groove 10 are provided on the other side of the fixture table 3, and the processing pipe fitting 1 is clamped on the limiting concave ring 7 and the positioning concave ring 9.

[0030] Specifically, during processing, the staff places the processed pipe 1 in the limiting recessed ring 7 of the clamp table 3 to perform the first processing step, and drives the clamping part 5 of the cylinder 4 to press down and clamp the product for processing. After the first processing step is completed, the staff moves the processed pipe 1 to the positioning recessed ring 9 to perform the second processing step. This setting combines the clamp table 3 for the two processing steps together, improves the processing efficiency, and the pneumatic clamping reduces the steps of manual clamping and improves the automation rate.

[0031] In this embodiment, a first protrusion 11 is arranged in the limiting groove 8 , and a first groove 12 is opened in the positioning concave ring 9 .

[0032] Specifically, the first protrusion 11 is provided to cooperate with the groove of the pipe opening of the processing pipe 1 to facilitate clamping, and the first groove 12 is provided to cooperate with the side protrusion of the processing pipe 1 to facilitate clamping.

[0033] The clamping portion 5 of this embodiment is provided with a connecting through hole 13 and a fixing through hole 14 , the output end of the cylinder 4 is arranged inside the connecting through hole 13 , a connecting column 15 is fixedly connected to the output end of the cylinder 4 , and the connecting column 15 passes through the fixing through hole 14 and is fixedly connected to the clamping portion 5 .

[0034] Specifically, the connecting through hole 13 is fixedly connected to the connecting column 15 on the cylinder 4 to play a fixing role. Such a structure is simple, easy to install and low in cost.

[0035] In this embodiment, both ends of the clamping portion 5 are provided with pressing members 16 , and both ends of the clamping portion 5 are provided with pressing through holes 17 , in which the pressing members 16 are inserted.

[0036] Specifically, the pressing member 16 is made of flexible material to ensure that the surface of the processed pipe 1 will not be damaged when the clamping portion 5 is pressed down, and the surface friction is large, the holding effect is good and it is not easy to move.

[0037] The pressing member 16 of this embodiment is arranged just above the limiting concave ring 7 and the positioning concave ring 9 .

[0038] Specifically, the pressing member 16 abuts against the top of the processed pipe 1 so that the cylinder drives the clamping part 5 to press down and press the processed pipe 1 .

[0039] In this embodiment, tension rings 18 are further provided on both sides of the connecting column 15 . The tension rings 18 are clamped on the connecting column 15 and abut against the clamping portion 5 .

[0040] Specifically, the tension ring 18 serves to fix the connection column 15 and the clamping portion 5 , and has a simple structure and is easy to assemble.

[0041] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A pneumatic processing fixture, comprising a fixture and a processing pipe (1) clamped on the fixture, characterized in that: The clamp comprises a lathe support (2), a clamp table (3), a cylinder (4) and a clamping portion (5); the clamp table (3) is fixedly connected between the lathe supports (2); a cylinder groove (6) is provided on the clamp table (3); the bottom of the cylinder (4) is fixedly connected in the cylinder groove (6); the movable output end at the top of the cylinder (4) is fixedly connected to the clamping portion (5); a limiting concave ring (7) and a limiting groove (8) are provided on one side of the clamp table (3); a positioning concave ring (9) and a positioning groove (10) are provided on the other side of the clamp table (3); the processed pipe fitting (1) is clamped on the limiting concave ring (7) and the positioning concave ring (9).

2. A pneumatic machining fixture according to claim 1, characterized in that: A first protrusion (11) is arranged in the limiting groove (8).

3. A pneumatic machining fixture according to claim 1, characterized in that: A first groove (12) is formed in the positioning concave ring (9).

4. The pneumatic machining fixture according to claim 1, characterized in that: The clamping portion (5) is provided with a connecting through hole (13) and a fixing through hole (14); the output end of the cylinder (4) is arranged inside the connecting through hole (13); a connecting column (15) is fixedly connected to the output end of the cylinder (4); the connecting column (15) passes through the fixing through hole (14) and is fixedly connected to the clamping portion (5).

5. The pneumatic machining fixture according to claim 1, characterized in that: Both ends of the clamping portion (5) are provided with clamping pieces (16), and both ends of the clamping portion (5) are provided with clamping through holes (17), and the clamping pieces (16) are inserted into the clamping through holes (17).

6. A pneumatic machining fixture according to claim 5, characterized in that: The pressing member (16) is arranged directly above the limiting concave ring (7) and the positioning concave ring (9).

7. The pneumatic machining fixture according to claim 4, characterized in that: Tension rings (18) are also provided on both sides of the connection column (15); the tension rings (18) are clamped on the connection column (15) and abut against the clamping portion (5).

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