Fixing tool with extrusion deformation preventing structure

Abstract

The utility model provides a fixing tool with an anti-extrusion deformation structure, which comprises a tool assembly and a supporting assembly, the rear end of the tool assembly is provided with the supporting assembly used for supporting an aluminum alloy pipe to prevent extrusion deformation, the supporting assembly comprises an air cylinder, a piston rod and a supporting piece, compared with the prior art, the aluminum alloy pipe inner wall supporting device has the advantages that the supporting assembly and the air bag are arranged to be matched with the outer sleeve, comprehensive supporting can be provided for the inner wall of an aluminum alloy pipe, aluminum alloy pipes with different internal space diameters can be supported through deformation, and the supporting effect is good. Deformation caused by excessive stress when the aluminum alloy pipe is extruded and fixed is avoided, the supporting piece is arranged, the expanded jacking rod can stably support the inner wall of the air bag, then the supporting force of the air bag on the inner wall of the aluminum alloy pipe is enhanced, and the supporting force can be counteracted with extrusion force excessively applied by the outside.

Description

Technical Field

[0001] This utility model belongs to the field of fixed tooling technology, and specifically relates to a fixed tooling with an anti-extrusion deformation structure. Background Technology

[0002] Insufficient protective measures result in uneven stress distribution on aluminum alloy tubes during processing, easily leading to localized excessive compression and permanent deformation. This situation primarily arises because the design of the fixtures fails to adequately consider the characteristics of aluminum alloy materials and the mechanical factors generated during processing, resulting in ineffective support and protection when in contact with the tube. Secondly, poor adaptability means that existing fixtures are often only suitable for processing aluminum alloy tubes of specific specifications, making it difficult to meet the needs of tubes with different diameters, wall thicknesses, and materials. Therefore, frequent fixture changes are required in multi-variety production, increasing production complexity and downtime.

[0003] Conventional solutions to these shortcomings include optimizing tooling design, introducing new materials, and enhancing the adjustability of the clamping device. However, these methods have drawbacks: optimizing tooling design typically requires significant R&D costs and time, potentially impacting production schedules; introducing new materials, while enhancing tooling performance, also increases overall equipment investment and maintenance complexity; and enhancing the adjustability of the clamping device may complicate the tooling structure, reducing operational convenience. Therefore, we aim to design a novel fixed tooling structure to address this problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fixing fixture with an anti-extrusion deformation structure to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a fixed fixture with an anti-extrusion deformation structure, comprising: a fixture assembly and a support assembly, wherein the rear end of the fixture assembly is equipped with a support assembly for supporting the aluminum alloy tube and preventing extrusion deformation, and the support assembly includes a cylinder, a piston rod and a support member;

[0006] The front end of the cylinder is fixedly connected to the rear end of the fixed base. A piston rod that drives the support member to extend and retract is movably mounted on the front end of the cylinder. A support member is fixed to the front end of the piston rod.

[0007] In a preferred embodiment, the tooling assembly includes a base plate and slide rails. A slide rail is fixed to the left and rear sides of the upper surface of the base plate, and a mounting base is slidably mounted on the upper surface of the base plate via the slide rails.

[0008] As a preferred implementation, a plurality of positioning frames for supporting the aluminum alloy pipe to be processed are installed at equal intervals from front to back in the middle of the upper surface of the mounting seat, and a limiting and pressing member for limiting and pressing the aluminum alloy pipe is installed on the left front side and the right rear side of the mounting seat, respectively.

[0009] As a preferred implementation, the support assembly further comprises a guide seat, the front end of the piston rod penetrates through the guide seat and is connected with the upper end of the guide seat through a linear bearing, and the support member is arranged to be inserted into the aluminum alloy pipe and support the inner wall of the aluminum alloy pipe, thereby protecting the aluminum alloy pipe from deformation caused by extrusion.

[0010] As a preferred implementation, the support assembly further comprises a sleeve and an air bag, the support member is arranged inside the air bag, the rear end of the air bag is sealingly connected with the rear end of the support member, and the air bag is hollow inside.

[0011] As a preferred implementation, the outer wall of the air bag is sleeved with a sleeve for strengthening the supporting effect, and a gas pressure sensor is installed inside the air bag, the air bag is arranged to be well extruded and fitted with the inner wall of the aluminum alloy pipe through deformation, and can provide a relatively appropriate pressure resistance supporting force for the inner wall of the aluminum alloy pipe.

[0012] As a preferred implementation, the support member comprises a connecting pipe and a collection air pipe, the connecting pipe is hollow inside, and a joint connected with an external flexible air pipe is arranged on the rear side of the connecting pipe.

[0013] As a preferred implementation, the front end of the connecting pipe is connected with the rear end of the collection air pipe, a plurality of jacking rods distributed at equal intervals are pneumatically installed on the upper side, the left side, the right side and the lower side of the collection air pipe, and a plurality of air holes for delivering high-pressure gas into the air bag are arranged on the front end of the collection air pipe.

[0014] After the above technical scheme is adopted, the beneficial effects of the present application are as follows: by arranging the support assembly and the air bag with the sleeve, a relatively comprehensive support can be provided for the inner wall of the aluminum alloy pipe, and the air bag can support aluminum alloy pipes with different internal space diameters through deformation, thereby avoiding deformation of the aluminum alloy pipe caused by excessive stress during extrusion and fixation;

[0015] The arrangement of the support member can form stable support for the inner wall of the air bag through the extended jacking rods, thereby strengthening the supporting force of the air bag on the inner wall of the aluminum alloy pipe, enabling the air bag to counteract the excessive extrusion force from the outside, and ensuring that the aluminum alloy pipe will not deform when subjected to pressure, which helps to improve the appearance of the processed aluminum alloy pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Fig. 1 It is a whole structure schematic view of the present application of the fixed tooling with anti-extrusion deformation structure.

[0018] Fig. 2 It is a schematic view of the support assembly of the present application of the fixed tooling with anti-extrusion deformation structure.

[0019] Fig. 3 It is a schematic view of the support assembly of the present application of the fixed tooling with anti-extrusion deformation structure.

[0020] In the figure, 100-tooling assembly, 110-slideway, 120-mounting seat, 130-positioning frame, 140-pressing part;

[0021] 200-support assembly, 210-cylinder, 220-fixing seat, 230-piston rod, 240-guide seat, 250-outer sleeve, 260-air bag, 270-supporting part, 271-connecting pipe, 272-gathering air pipe, 273-jacking rod, 274-air hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0023] Please refer to Figs. 1-3 The present application provides a technical solution: a fixed tooling with anti-extrusion deformation structure, comprising: tooling assembly 100 and support assembly 200, the rear end of the tooling assembly 100 is provided with a support assembly 200 for supporting and preventing extrusion deformation of the aluminum alloy pipe, the support assembly 200 comprises a cylinder 210, a piston rod 230 and a supporting part 270.

[0024] The front end of the cylinder 210 is fixedly connected with the rear end of the fixing seat 220, the front end of the cylinder 210 is movably provided with a piston rod 230 for driving the supporting part 270 to extend and retract, and the front end of the piston rod 230 is fixedly provided with the supporting part 270.

[0025] Referring to Figs. 1-2 The tool assembly 100 comprises a base plate, a slide rail 110, a slide rail 110 is fixed on the left side and the back side of the upper surface of the base plate respectively, and a mounting seat 120 is slidably installed on the upper side of the base plate through the slide rail 110.

[0026] A plurality of positioning frames 130 for supporting the aluminum alloy pipe to be processed are installed on the upper surface of the mounting seat 120 at equal intervals from front to back, and a pressing member 140 for limiting and pressing the aluminum alloy pipe is installed on the left front side and the right rear side of the mounting seat 120 respectively.

[0027] The support assembly 200 further comprises a guide seat 240, the front end of the piston rod 230 penetrates through the guide seat 240 and is slidably connected with the upper end of the guide seat 240 through a linear bearing, and the support member 270 is arranged to be inserted into the inside of the aluminum alloy pipe and support the inner wall of the aluminum alloy pipe, thereby protecting the aluminum alloy pipe from being deformed due to extrusion.

[0028] The support assembly 200 further comprises a sleeve 250 and an air bag 260, the support member 270 is arranged inside the air bag 260, and the rear end of the air bag 260 is sealingly connected with the rear end of the support member 270, and the air bag 260 is designed to be hollow inside.

[0029] The outer wall of the air bag 260 is sleeved with the sleeve 250 for strengthening the supporting effect, and the air pressure sensor is installed inside the air bag 260, and the air bag 260 is arranged to be well extruded and fitted with the inner wall of the aluminum alloy pipe through deformation, and can provide a relatively appropriate pressure resistance supporting force for the inner wall of the aluminum alloy pipe.

[0030] As a first embodiment of the utility model, by arranging the support assembly 200, in actual use, the aluminum alloy pipe is first arranged on the positioning frame 130, then is pre-fixed by the pressing member 140, then the air cylinder 210 is started, the piston rod 230 drives the support member 270 and the air bag 260 and the sleeve 250 thereon to be inserted into the inside of the aluminum alloy pipe, and the external air supply equipment is started to deliver high-pressure gas into the inside of the gathering gas pipe 272 of the support member 270, the high-pressure gas enters into the inside of the air bag 260 through the air holes 274 at the end of the gathering gas pipe 272, the air bag 260 gradually expands and drives the sleeve 250 to deform (the material of the sleeve 250 is the same as that of the air bag 260, and both are deformable materials), and tightly abuts against the inner wall of the aluminum alloy pipe, which makes the inner wall of the aluminum alloy pipe have a certain supporting capacity, then the pressing member 140 is used again to firmly fix the aluminum alloy pipe for the second time, and subsequent processing operation can be performed, the air bag 260 cooperates with the sleeve 250 to provide a relatively comprehensive support for the inner wall of the aluminum alloy pipe, and can support the aluminum alloy pipes with different internal space diameters through deformation, thereby avoiding deformation of the aluminum alloy pipe due to excessive stress during extrusion and fixation.

[0031] Referring to Figs. 2-3The support 270 comprises a connecting pipe 271 and a collecting air pipe 272, the connecting pipe 271 is hollow inside, and a joint for connecting with an external flexible air pipe is arranged at the rear side of the connecting pipe 271.

[0032] The front end of the connecting pipe 271 is connected with the rear end of the collecting air pipe 272, a plurality of jacking rods 273 are pneumatically arranged on the upper side, the left side, the right side and the lower side of the collecting air pipe 272 at equal intervals, and a plurality of air holes 274 for conveying high-pressure gas into the air bag 260 are arranged at the front end of the collecting air pipe 272.

[0033] As a second embodiment of the utility model, based on the above first embodiment, the support 270 is arranged, in actual use, a plurality of jacking rods 273 are pneumatically arranged on the upper side, the left side, the right side and the lower side of the collecting air pipe 272, when a large amount of high-pressure gas is conveyed into the collecting air pipe 272, the jacking rods 273 are also lifted synchronously, the extended jacking rods 273 can form stable support for the inner wall of the air bag 260, thereby strengthening the support strength of the air bag 260 on the inner wall of the aluminum alloy pipe, so that the air bag 260 can counteract the excessive extrusion force applied from the outside, and ensure that the aluminum alloy pipe will not be deformed when being pressed, which is helpful to improve the appearance of the aluminum alloy pipe after processing.

[0034] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fixed tooling with crush deformation prevention structure, comprising: Tooling assembly (100) and support assembly (200), characterized in that the rear end of the tooling assembly (100) is provided with a support assembly (200) for supporting and preventing extrusion deformation of the aluminum alloy pipe, and the support assembly (200) comprises a cylinder (210), a piston rod (230) and a support piece (270). The front end of the cylinder (210) is fixedly connected with the rear end of the fixed seat (220), and the front end of the cylinder (210) is movably provided with a piston rod (230) for driving the telescopic movement of the support piece (270), and the front end of the piston rod (230) is fixedly provided with the support piece (270).

2. The fixing tool with anti-extrusion deformation structure according to claim 1, characterized in that: The tooling assembly (100) comprises a bottom plate and slide rails (110), and one slide rail (110) is fixedly arranged on the left side and the rear side of the upper surface of the bottom plate, respectively.

3. The fixing tool with anti-extrusion deformation structure according to claim 2, characterized in that: A plurality of positioning frames (130) for supporting the aluminum alloy pipe to be processed are arranged on the upper surface of the mounting seat (120) at equal intervals from front to back, and a limiting and pressing piece (140) for limiting and pressing the aluminum alloy pipe is arranged on the left front side and the right rear side of the mounting seat (120), respectively.

4. The fixing tool with anti-extrusion deformation structure according to claim 1, characterized in that: The support assembly (200) further comprises a guide seat (240), and the front end of the piston rod (230) penetrates through the guide seat (240) and is slidably connected with the upper end of the guide seat (240) through a linear bearing.

5. The fixed tooling with anti-extrusion deformation structure according to claim 1, characterized in that: The support assembly (200) further comprises an outer sleeve (250) and an air bag (260), and the support piece (270) is arranged inside the air bag (260), and the rear end of the air bag (260) is sealingly connected with the rear end of the support piece (270), and the air bag (260) is designed as hollow.

6. The fixed tooling with anti-extrusion deformation structure according to claim 5, characterized in that: The outer wall of the air bag (260) is sleeved with an outer sleeve (250) for enhancing the supporting effect, and the air bag (260) is provided with an air pressure sensor.

7. The fixture tool with anti-extrusion deformation structure according to claim 1, characterized in that: The support piece (270) comprises a connecting pipe (271) and a collecting air pipe (272), and the connecting pipe (271) is designed as hollow, and the rear side of the connecting pipe (271) is provided with a joint connected with an external flexible air supply pipe.

8. The fixed tooling with anti-extrusion deformation structure according to claim 7, characterized in that: The front end of the connecting pipe (271) is connected with the rear end of the collecting air pipe (272), the upper side, the left side, the right side and the lower side of the collecting air pipe (272) are pneumatically provided with a plurality of jack rods (273) distributed at equal intervals, and the front end of the collecting air pipe (272) is provided with a plurality of air holes (275) for supplying high-pressure gas into the air bag (260).

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