Quick-change clamp for welding oil damper component

Abstract

The invention relates to the technical field of oil pressure dampers of railway vehicles, in particular to a quick-change clamp for welding oil pressure damper components, which can quickly complete replacement of welding clamps and is reliable in positioning, thereby effectively improving production efficiency. According to the oil damper component welding quick-change clamp, a linear guide rail is arranged on a supporting seat, and the linear guide rail is connected with a follow-up clamp; the follow-up clamp comprises an installation base, a clamping air cylinder is arranged on the installation base, and the clamping air cylinder is used as a power source for movement of the clamp base and provides clamping force during welding so that welding equipment can be used for welding. The follow-up clamp further comprises a clamp body, and the clamp body is provided with a follow-up rotary flange. The follow-up rotary flange is provided with a quick-change taper clamp, and the quick-change taper clamp is used for meeting the requirements for replacement and welding rotation of different welding clamps. The quick-change taper clamp adopts 16-degree taper angle positioning and follow-up rotary flange quick positioning, and is connected through a tensioning screw rod.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicle oil pressure shock absorbers, and in particular to a quick-change fixture for welding oil pressure shock absorber components. Background Art

[0002] At present, rail vehicle hydraulic shock absorbers have very high requirements for the symmetry of component welding; specifically, they usually require that the symmetry of components after welding is no more than 0.5 mm; at the same time, they present the characteristics of small batch and multi-variety production.

[0003] In the prior art, most welding methods use a rotary chuck clamping method for welding. When replacing welding parts, it is necessary to replace a suitable chuck. The installation positioning of the chuck is a stopper positioning. Each time the chuck is replaced, a meter test is required, so the replacement time is relatively long.

[0004] That is, when welding the components of the existing hydraulic shock absorber, more time is spent on fixture installation and adjustment when producing multiple varieties, thereby affecting production efficiency. Summary of the invention

[0005] The object of the present invention is to provide a quick-change fixture for welding oil pressure shock absorber components, which can quickly complete the replacement of the welding fixture and has reliable positioning, thereby effectively improving production efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme: A quick-change fixture for welding a hydraulic shock absorber component, comprising: a support seat, the support seat is provided with a linear guide rail, and the linear guide rail is connected to a follower fixture; The follower clamp comprises: a mounting seat, the mounting seat is provided with a clamping cylinder, and the clamping cylinder is used as a power source for the movement of the clamp seat and provides a clamping force during welding, so as to perform welding using a welding device; The follow-up clamp also includes: a clamp body, which is equipped with a follow-up swivel flange; the follow-up swivel flange is equipped with a quick-change taper clamp, and the quick-change taper clamp is used to achieve the replacement of different welding clamps and welding rotation requirements; the quick-change taper clamp adopts 16° cone angle positioning to quickly position with the follow-up swivel flange, and is connected by a tightening screw.

[0007] In actual application, the follower rotary flange is installed on the fixture body through a bearing.

[0008] The interior of the follower swivel flange has a 16° tapered hole, and the quick-change taper fixture is connected to the tapered hole of the follower swivel flange through a 16° tapered surface, and the contact area is not less than 75%.

[0009] Specifically, the quick-change taper fixture comprises: a taper fixture body, an upper pressing plate is connected to the upper side of the taper fixture body via a fixing plate, and a lower pad is connected to the lower side of the taper fixture body.

[0010] Furthermore, the fixture body is equipped with a positioning cylinder, and the positioning cylinder is connected to the follower rotary flange through a positioning pin.

[0011] Compared with the prior art, the hydraulic shock absorber component welding quick-change fixture of the present invention has the following advantages: In the quick-change fixture for welding hydraulic shock absorber components provided by the present invention, for the replacement of different fixtures, it is only necessary to loosen the tightening screw to remove the tapered fixture and quickly replace other fixtures, and after replacement, it is only necessary to tighten the tensioning screw to complete the replacement; in other words, the quick-change fixture for welding hydraulic shock absorber components provided by the present invention adopts a quick-change fixture structure with a 16° cone angle, and through the fixing method of the tensioning screw, this positioning method does not require repeated inspection of the fixture after installation, can effectively improve production efficiency by 30%, and the symmetry of the components after welding is also significantly improved; that is, the shock absorber weld can be welded after installation is completed, which greatly improves the welding clamping efficiency, and due to the reasonable tapered structure, the symmetry and parallelism of the product after welding are also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the structure of a quick-change fixture for welding a hydraulic shock absorber component provided in an embodiment of the present invention; Figure 2 A schematic diagram of the exploded structure of a quick-change fixture for welding a hydraulic shock absorber component provided by an embodiment of the present invention; Figure 3 A schematic diagram of the exploded structure of a quick-change taper fixture in a quick-change fixture for welding a hydraulic shock absorber component provided in an embodiment of the present invention; Figure 4 A schematic cross-sectional view of a quick-change fixture for welding a hydraulic shock absorber component provided in an embodiment of the present invention.

[0013] Reference numerals: 1-support seat; 2-linear guide; 3-mounting seat; 4-clamping cylinder; 5-clamp seat; 6-clamp body; 7-follow-up rotary flange; 71-bearing; 8-quick-change taper clamp; 81-taper clamp body; 82-fixed plate; 83-upper pressure plate; 84-lower pad; 9-tensioning screw; 10-positioning cylinder; 101-positioning pin; A-parts to be welded. DETAILED DESCRIPTION

[0014] For ease of understanding, the quick-change fixture for welding hydraulic shock absorber components provided by an embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.

[0015] The embodiment of the present invention provides a quick-change fixture for welding a hydraulic shock absorber component, such as Figure 1-Figure 4 As shown, it comprises: a support seat 1, the support seat 1 is provided with a linear guide rail 2, and the linear guide rail 2 is connected with a follower clamp; The follower clamp comprises: a mounting seat 3, the mounting seat 3 is provided with a clamping cylinder 4, and the clamping cylinder 4 is used as a power source for the movement of the clamp seat 5 and provides a clamping force during welding, so as to use the welding equipment for welding; The follow-up clamp also includes: a clamp body 6, which is equipped with a follow-up rotating flange 7; the follow-up rotating flange 7 is equipped with a quick-change taper clamp 8, and the quick-change taper clamp 8 is used to achieve the replacement of different welding clamps and welding rotation requirements; the quick-change taper clamp 8 adopts a 16° cone angle positioning and a follow-up rotating flange 7 for quick positioning, and is connected by a tightening screw 9.

[0016] Compared with the prior art, the quick-change fixture for welding hydraulic shock absorber components described in the embodiment of the present invention has the following advantages: In the quick-change fixture for welding hydraulic shock absorber components provided in the embodiment of the present invention, for the replacement of different fixtures, it is only necessary to loosen the tightening screw to remove the tapered fixture and quickly replace other fixtures, and after replacement, it is only necessary to tighten the tensioning screw to complete the replacement; in other words, the quick-change fixture for welding hydraulic shock absorber components provided in the embodiment of the present invention adopts a quick-change fixture structure with a 16° cone angle, and through the fixing method of the tensioning screw, this positioning method does not require repeated inspection of the fixture after installation, which can effectively improve the production efficiency by 30%, and the symmetry of the components after welding is also significantly improved; that is, the shock absorber weld can be welded after the installation is completed, which greatly improves the welding clamping efficiency, and due to the reasonable tapered structure, the symmetry and parallelism of the product after welding are also improved.

[0017] In practical application, such as Figure 1-Figure 4 As shown, the above-mentioned follower rotating flange 7 can be installed on the clamp body 6 through a bearing 71.

[0018] Among them, Figure 1-Figure 4 As shown, the interior of the above-mentioned follower swivel flange 7 has a 16° tapered hole, and the quick-change taper fixture 8 is connected to the tapered hole of the follower swivel flange 7 through a 16° tapered surface, and the contact area is not less than 75%; therefore, according to the characteristics of the tapered connection, its centering characteristics and supporting force make the tapered connection stable and reliable, and the accuracy of the connection can be guaranteed without unnecessary testing.

[0019] Specifically, Figure 1-Figure 4 As shown, the quick-change taper fixture 8 may include: a taper fixture body 81, an upper pressure plate 83 is connected to the top of the taper fixture body 81 via a fixed plate 82, and a lower pad 84 is connected to the bottom of the taper fixture body 81, thereby facilitating quick replacement of the fixture and greatly improving the efficiency of fixture replacement when welding different products.

[0020] Furthermore, if Figure 1-Figure 4 As shown, the fixture body 6 may be equipped with a positioning cylinder 10 , and the positioning cylinder 10 may be connected to the follower rotary flange 7 via a positioning pin 101 .

[0021] The following is a detailed description of the use process of the hydraulic shock absorber component welding quick-change fixture provided by the embodiment of the present invention with the help of the accompanying drawings: When the parts are initially clamped and positioned, the connecting ring is placed on the lower connecting plate and positioned by a V-block, and then the upper pressure plate is used to fix the parts. Since the taper gear is accurately positioned concentrically and symmetrically, the clamping cylinder is started to clamp the parts after the parts are installed, and the components can be welded.

[0022] The quick-change fixture connects the fixture to the follow-up rotary flange through the principle of taper, realizing a fast and accurate positioning method on the welding fixture structure. At the same time, it can be disassembled repeatedly without causing a decrease in accuracy, thereby greatly improving production efficiency and quality.

[0023] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A quick-change fixture for welding hydraulic shock absorber components, characterized in that: include: A support seat, wherein the support seat is provided with a linear guide rail, and the linear guide rail is connected to a follower clamp; The follower clamp comprises: a mounting seat, the mounting seat is provided with a clamping cylinder, and the clamping cylinder is used as a power source for the movement of the clamp seat and provides a clamping force during welding, so as to perform welding using a welding device; The follow-up clamp also includes: a clamp body, which is equipped with a follow-up swivel flange; the follow-up swivel flange is equipped with a quick-change taper clamp, and the quick-change taper clamp is used to achieve the replacement of different welding clamps and welding rotation requirements; the quick-change taper clamp adopts 16° cone angle positioning to quickly position with the follow-up swivel flange, and is connected by a tightening screw.

2. The quick-change fixture for welding hydraulic shock absorber components according to claim 1, characterized in that: The follower rotary flange is mounted on the fixture body through a bearing.

3. The quick-change fixture for welding hydraulic shock absorber components according to claim 1, characterized in that: The interior of the follower swivel flange is provided with a 16° tapered hole, and the quick-change taper fixture is connected to the tapered hole of the follower swivel flange via a 16° tapered surface, and the contact area is not less than 75%.

4. The quick-change fixture for welding hydraulic shock absorber components according to claim 1, characterized in that: The quick-change taper fixture comprises a taper fixture body, an upper pressing plate is connected to the upper side of the taper fixture body via a fixing plate, and a lower pad is connected to the lower side of the taper fixture body.

5. The quick-change fixture for welding hydraulic shock absorber components according to any one of claims 1 to 4, characterized in that: The clamp body is equipped with a positioning cylinder, and the positioning cylinder is connected to the follower rotary flange through a positioning pin.

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