阅读说明：本技术 一种复合套管扣压工装 (Composite bushing withholding tool ) 是由 丁岩 周福海 李�杰 钱庆 于 2021-08-25 设计创作，主要内容包括：本发明公开了一种复合套管扣压工装,包括底座,底座上端面的中部设置有滑轨,滑轨上从左至右依次滑动设置有第一气缸、第二气缸、扣压模、第一定位块和第二定位块；第一气缸上固定连接有第一支架,第二气缸上固定连接有第二支架；第一支架、第二支架、扣压模、第一定位块、第二定位块上均开设有通孔。扣压模包括扣压上模和扣压下模,扣压上模的端部设置有定位孔、扣压上凸台,扣压下模设置有定位轴和扣压下凸台,且扣压上模的上端面固定连接有第三气缸；底座的侧边设置有双启动按钮。本发明提供的复合套管扣压工装具有结构简单、精确度高、操作方便、安全性高的优点。(The invention discloses a composite sleeve buckling and pressing tool which comprises a base, wherein a sliding rail is arranged in the middle of the upper end surface of the base, and a first air cylinder, a second air cylinder, a buckling and pressing die, a first positioning block and a second positioning block are sequentially arranged on the sliding rail in a sliding manner from left to right; the first cylinder is fixedly connected with a first support, and the second cylinder is fixedly connected with a second support; through holes are formed in the first support, the second support, the pressing die, the first positioning block and the second positioning block. The buckling and pressing die comprises a buckling and pressing upper die and a buckling and pressing lower die, a positioning hole and a buckling and pressing upper boss are arranged at the end part of the buckling and pressing upper die, the buckling and pressing lower die is provided with a positioning shaft and a buckling and pressing lower boss, and a third air cylinder is fixedly connected to the upper end face of the buckling and pressing upper die; the side of base is provided with two start button. The composite bushing buckling and pressing tool has the advantages of simple structure, high accuracy, convenience in operation and high safety.)

1. The utility model provides a frock is withheld to compound sleeve pipe for inner tube, outer tube to in the compound sleeve pipe are fixed a position and are withheld, its characterized in that: comprises a rectangular base (1) arranged at the bottom; a sliding rail (6) for facilitating distance adjustment and axial positioning is arranged in the middle of the upper end face of the base (1), and a first cylinder (2), a second cylinder (4), a pressing die (7), a first positioning block (8) and a second positioning block (9) are sequentially arranged on the sliding rail (6) in a sliding manner from left to right; a first support (3) used for pushing the inner pipe is fixedly connected to the first cylinder (2), and a second support (5) used for pushing the outer pipe is fixedly connected to the second cylinder (4); through holes which are coaxially arranged and used for limiting the inner pipe and the outer pipe are formed in the first support (3), the second support (5), the pressing die (7), the first positioning block (8) and the second positioning block (9); the buckling pressing die (7) comprises a buckling upper die (71) and a buckling lower die (76), a vertically arranged positioning hole (72) is formed in the end portion of the buckling upper die (71), an arc-shaped buckling upper boss (73) is formed in the middle portion of the buckling upper die, a positioning shaft (75) arranged corresponding to the positioning hole (72) and a buckling lower boss (74) matched with the buckling upper boss (73) in use are arranged at the end portion of the buckling lower die (76), and a vertically arranged third air cylinder is fixedly connected to the upper end face of the buckling upper die (71); the side of the base (1) is provided with a double-start button (10) for controlling the start of the first cylinder (2) and the second cylinder (4).

2. The composite bushing crimping tool of claim 1, characterized in that: the number of the positioning holes (72) is two, and the two positioning holes are respectively positioned at two ends of the buckling upper die (71).

3. The composite bushing crimping tool of claim 1, characterized in that: the buckling upper boss (73) and the buckling lower boss (74) are buckled together to form a cylinder, and the diameter of the cylinder is smaller than that of the outer pipe of the composite sleeve.

4. The composite bushing crimping tool of claim 1, characterized in that: the diameters of the through holes in the first support (3) and the second positioning block (9) are equal to the outer diameter of the inner pipe, and the diameters of the through holes in the second support (5) and the first positioning block (8) are equal to the outer diameter of the outer pipe.

Technical Field

The invention relates to the technical field of nonferrous metal processing, in particular to a composite bushing buckling and pressing tool.

Background

The IHX aluminum alloy tube for heat exchange is a novel aluminum alloy heat exchange material for an automobile heat exchange system, which can ensure high pressure resistance and has good processability and can be used in an automobile air conditioner with a novel refrigerant. The pipe is formed by compounding a sleeve pipe with internal teeth and a core pipe, and a longitudinal closed or semi-closed cavity is formed between the core pipe and the sleeve pipe, so that the effect of increasing the heat exchange effect is achieved, the energy loss can be greatly saved, and the use cost is reduced.

Compared with the currently used common aluminum pipe, the pressure resistance of the composite sleeve can reach more than 20MPa, so that the use of fourth-generation refrigerants such as carbon dioxide is supported. Under the current trend of energy conservation, emission reduction and light weight, the related composite aluminum pipe is used by more and more automobile air conditioner manufacturers.

At present, the buckling requirements of composite sleeves of different manufacturers are different, so that buckling tools which meet the requirements of customers and can meet mass production need to be designed to meet the increasing demands of the customers on the fit sleeves.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a composite bushing crimping tool to solve the problem that composite bushings of different manufacturers have different crimping requirements, so as to realize batch production of the composite bushings.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows.

A composite bushing withholding tool is used for positioning and withholding an inner pipe and an outer pipe in a composite bushing and comprises a rectangular base arranged at the bottom; a sliding rail for facilitating distance adjustment and axial positioning is arranged in the middle of the upper end face of the base, and a first cylinder, a second cylinder, a pressing die, a first positioning block and a second positioning block are sequentially arranged on the sliding rail in a sliding manner from left to right; the first cylinder is fixedly connected with a first support used for pushing the inner pipe, and the second cylinder is fixedly connected with a second support used for pushing the outer pipe; through holes which are coaxially arranged and used for limiting the inner pipe and the outer pipe are formed in the first support, the second support, the pressing die, the first positioning block and the second positioning block; the buckling and pressing die comprises a buckling and pressing upper die and a buckling and pressing lower die, a vertically arranged positioning hole is formed in the end portion of the buckling and pressing upper die, an arc-shaped buckling and pressing upper boss is arranged in the middle of the buckling and pressing upper die, a positioning shaft arranged corresponding to the positioning hole and a buckling and pressing lower boss used for matching with the buckling and pressing upper boss are arranged at the end portion of the buckling and pressing lower die, and a vertically arranged third air cylinder is fixedly connected to the upper end face of the buckling and pressing upper die; and the side edge of the base is provided with a double-starting button for controlling the starting of the first cylinder and the second cylinder.

According to the technical scheme, the number of the positioning holes is two, and the two positioning holes are respectively located at two ends of the buckling upper die.

According to the technical scheme, the buckling upper boss and the buckling lower boss are buckled together to form a cylinder, and the diameter of the cylinder is smaller than that of the outer pipe of the composite sleeve.

Due to the adoption of the technical scheme, the technical progress of the invention is as follows.

According to the composite sleeve buckling tool, the sliding rails, the positioning holes and the positioning shafts are arranged, so that the centering performance during installation and buckling is ensured, and dislocation is prevented; when the inner pipe and the outer pipe are fixed, the operation safety can be ensured by arranging the double start buttons; during buckling, the positioning is carried out through the air cylinder, so that the accuracy of buckling size is ensured; oil is not needed during buckling, so that the cleanness of the workpiece is ensured, and secondary cleaning is not needed. The composite bushing buckling and pressing tool has the advantages of simple structure, high accuracy, convenience in operation and high safety.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the crimping upper die of the present invention;

FIG. 3 is a schematic structural view of the lower crimping die of the present invention;

wherein: 1. the base, 2, first cylinder, 3, first support, 4, second cylinder, 5, second support, 6, slide rail, 7, withhold the mould, 71, withhold the mould, 72, locating hole, 73, withhold the upper boss, 74, withhold the lower boss, 75, the locating shaft, 76, withhold the lower mould, 8, first locating piece, 9, second locating piece, 10, two start button.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a compound sleeve pipe withholds frock for inner tube, outer tube to in the compound sleeve pipe are fixed a position and are withheld, combine shown in fig. 1 to 3, including base 1, first cylinder 2, first support 3, second cylinder 4, second support 5, slide rail 6, withhold mould 7, withhold last mould 71, locating hole 72, withhold last boss 73, withhold lower boss 74, location axle 75, withhold lower mould 76, first locating piece 8, second locating piece 9, two start button 10.

The base 1 is rectangular and arranged at the bottom. The middle part of the upper end face of the base 1 is provided with a slide rail 6 for conveniently adjusting the distance and axially positioning. The sliding rail 6 is provided with a first cylinder 2, a second cylinder 4, a buckling and pressing die 7, a first positioning block 8 and a second positioning block 9 in sequence from left to right in a sliding manner. The first cylinder 2 is fixedly connected with a first bracket 3, and the first bracket 3 is used for pushing the inner pipe; fixedly connected with second support 5 on the second cylinder 4, second support 5 is used for promoting the outer tube. The through holes coaxially arranged are formed in the first support 3, the second support 5, the buckling die 7, the first positioning block 8 and the second positioning block 9 and used for limiting the inner pipe and the outer pipe. The diameters of the through holes in the first support 3 and the second positioning block 9 are equal to the outer diameter of the inner tube, and the diameters of the through holes in the second support 5 and the first positioning block 8 are equal to the outer diameter of the outer tube.

The buckling and pressing die 7 comprises a buckling and pressing upper die 71 and a buckling and pressing lower die 76; two end parts of the buckling upper die 71 are respectively provided with a vertically arranged positioning hole 72, the middle part of the buckling upper die 71 is provided with an arc-shaped buckling upper boss 73, and the upper end surface of the buckling upper die 71 is fixedly connected with a third air cylinder which is vertically arranged and used for controlling the buckling upper die 71 to move up and down; the end of the lower buckling die 76 is provided with a positioning shaft 75 corresponding to the positioning hole 72, and the middle of the lower buckling die 76 is provided with a lower buckling boss 74 used in cooperation with the upper buckling boss 73. The buckling upper boss 73 and the buckling lower boss 74 are buckled together to form a cylinder shape, and the diameter of the cylinder is smaller than that of the outer pipe of the composite sleeve, so that a groove with the depth larger than the gap between the outer pipe and the inner pipe is formed on the outer pipe after buckling.

The side of base 1 is provided with two start button 10 for the start-up of controlling first cylinder 2, second cylinder 4 prevents that the workman from operating the limit start button in the limit, leads to the potential safety hazard, thereby improves the factor of safety of machine operation.

When the composite pipe is actually used, the positions of the first positioning block 8 and the second positioning block 9 are adjusted according to the lengths of the inner pipe and the outer pipe in the composite pipe, and the positions are fixed through bolts. Then, the inner pipe is sleeved into the outer pipe, the sleeved inner pipe and outer pipe firstly pass through the buckling and pressing die 7, and then the tail part of the inner pipe is contacted with the second positioning block 9, and the tail part of the outer pipe is contacted with the first positioning block 8; and then the positions of the first bracket 3 and the second bracket 5 are adjusted, so that the first bracket 3 is close to the head end of the inner pipe, and the second bracket 5 is close to the head end of the outer pipe. Pressing the double-start button 10, the first cylinder 2 starts to push the first support 3, and the first support 3 pushes the port of the inner pipe to fix the inner pipe; then the second cylinder 4 starts to push the second bracket 5, and the second bracket 5 pushes the port of the outer tube to fix the outer tube. Then, the crimping upper die 71 of the crimping die 7 is pushed by the third cylinder to move downward along the positioning shaft 75, and the crimping is completed when the crimping upper die 71 is crimped with the crimping lower die 76. The third cylinder controls the upper buckling mould 71 to move upwards and reset, and the buckled composite sleeve can be taken out.