Laser welding clamping device

Abstract

The utility model discloses a laser welding clamping device which comprises a working table, an inner supporting mechanism, an outer clamping mechanism and a pressing limiting mechanism are arranged on the working table, the inner supporting mechanism comprises a first positioning seat, a first double-rod sliding table air cylinder, a first positioning block and a first inner supporting block, and the first positioning seat is fixedly connected with the first positioning block. The outer clamping air cylinder comprises a second positioning seat, a second double-rod sliding table air cylinder, a second positioning block and a second inner supporting block, the second positioning seat is fixedly connected with the second inner supporting block, a second sliding block is arranged on a sliding table of the second double-rod sliding table air cylinder, and the second positioning block is fixedly connected with the second inner supporting block. According to the clamping device, a welding workpiece can be effectively and accurately limited and fixed from inside to outside and from top to bottom, and the machining precision is improved while the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a laser welding clamping device. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process is a heat conduction type, that is, the laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been successfully applied to the precision welding of micro and small parts.

[0003] Now a box-shaped workpiece needs to be laser welded on both sides. Due to the particularity of the structural shape, manual welding was originally used. Direct welding without limiting is more labor-intensive on the one hand, and on the other hand, the welding accuracy is difficult to guarantee, the welding quality is inconsistent, the scrap rate is high and the efficiency is low. Therefore, it is necessary to design a fixture to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model relates to a laser welding clamping device, which has a simple and reliable structure, effectively solves the above technical problems, and is suitable for popularization and use. In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A laser welding clamping device comprises a workbench, on which an inner supporting mechanism, an outer clamping mechanism and a downward pressure limiting mechanism are arranged, and a processing station is arranged on the workbench, and the inner supporting mechanism comprises a first positioning seat, a first double-rod sliding cylinder, a first positioning block and a first inner supporting block, wherein the first positioning seat is fixedly arranged on the left side of the processing station, the first positioning seat is fixedly connected to the first positioning block, the first positioning block is in contact with the left outer surface of the workpiece, a first slider is arranged on the slide of the first double-rod sliding cylinder, the first double-rod sliding cylinder is used to drive the first slider to reciprocate in a straight line in the left and right directions, the first slider is fixedly connected to the first inner supporting block, the first inner supporting block is in contact with the left inner surface of the workpiece, and the first slider is fixedly connected to the first inner supporting block. The external clamping cylinder includes a second positioning seat, a second double-rod slide cylinder, a second positioning block, and a second inner support block. The second positioning seat is fixed on the workbench, the second positioning seat is fixedly connected to the second inner support block, the second inner support block fits the right inner surface of the workpiece, the second double-rod slide cylinder is arranged on the right side of the processing station, and a second slider is arranged on the slide of the second double-rod slide cylinder, the second slider is fixedly connected to the second positioning block, and the second positioning block fits the right outer surface of the workpiece. The downward pressure limiting mechanism includes a support frame and a lifting cylinder. The lifting cylinder is fixed on the workbench through the support frame, the lifting cylinder is located above the processing station, and the piston rod of the lifting cylinder faces downward and is connected to a pressure block.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: there are two support frames, which are respectively located at the left and right ends of the processing station, and each support frame is equipped with a lifting cylinder, and the two lifting cylinders are symmetrically arranged on the left and right.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the pressing block is provided with a trapezoidal limiting groove which is narrow at the top and wide at the bottom.

[0008] On the basis of the above solution and as a preferred solution of the above solution: the cross section of the second sliding block is T-shaped.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: a vertical plate is fixedly provided on the workbench, a mounting plate is provided on the top of the vertical plate, and a hand-pull regulating valve is provided above the mounting plate.

[0010] Compared with the prior art, the utility model has the outstanding and beneficial technical effect that the clamping device can effectively and accurately limit and fix the welding workpiece from the inside to the outside and from the top to the bottom, which is convenient for subsequent welding operations, improves processing efficiency while improving processing accuracy and ensuring the final processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of product placement;

[0012] Figure 2 It is a schematic diagram of the overall structure of the clamping device. DETAILED DESCRIPTION

[0013] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0014] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate directions or positional relationships based on the attached Figure 1 The directions or positional relationships shown are only for the convenience of describing the present invention, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0015] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0016] In order to solve the above technical problems, Figure 1-2As shown, the utility model designs a laser welding clamping device, including a workbench 1, on which an internal supporting mechanism, an external clamping mechanism, and a downward pressure limiting mechanism are provided. A processing station is provided in the middle of the workbench 1, and the internal supporting mechanism includes a first positioning seat 2, a first double-rod slide cylinder 3, a first positioning block 4, and a first internal support block 5. The first positioning seat 2 is fixedly arranged on the left side of the processing station, and the first positioning seat 2 is fixedly connected to the first positioning block 4. The first positioning block 4 is in contact with the left outer surface of the workpiece 6. A first slider 7 is provided on the slide of the first double-rod slide cylinder 3. The first double-rod slide cylinder 3 is used to drive the first slider 7 to reciprocate in a straight line in the left and right directions. The first slider 7 is fixedly connected to the first internal support block 5. The first double-rod slide cylinder 3 can drive the first internal support block 5 to move to the left so as to be in contact with the left inner surface of the workpiece 6. The external clamping cylinder includes a second positioning seat 8, a second double-rod slide cylinder 9, a second positioning block 10, and a second inner support block 11. The second positioning seat 8 is fixed on the workbench 1, and the second positioning seat 8 is fixedly connected to the second inner support block 11. The second inner support block 11 fits with the right inner surface of the workpiece 6. The second double-rod slide cylinder 9 is arranged on the right side of the processing station. A second slide block 12 is arranged on the slide of the second double-rod slide cylinder. The second double-rod slide cylinder can drive the second slide block 12 to slide left and right. The second slide block 12 is fixedly connected to the second positioning block 10, and the second positioning block 10 fits with the right outer surface of the workpiece 6. The first inner support block 5 and the second inner support block 11 support the workpiece 6 from the inside to the outside at the left and right ends respectively, while the first positioning block 4 and the second positioning block 10 perform limit clamping from the outside to the inside at the left and right ends respectively.

[0017] The downward pressure limiting mechanism includes a support frame 13 and a lifting cylinder 14. There are two support frames 13, which are respectively fixedly installed at the left and right ends of the processing station. A lifting cylinder 14 is installed on each support frame 13. The two lifting cylinders 14 are symmetrically arranged on the left and right. The lifting cylinder 14 is located above the processing station. The piston rod of the lifting cylinder 14 faces downward and is connected to a pressure block. The pressure block is provided with a trapezoidal limiting groove which is narrow at the top and wide at the bottom. Therefore, when the lifting cylinder 14 drives the pressure block to be pressed down, the pressure block can be attached to the top of the left and right ends of the workpiece 6, so that the workpiece 6 can be accurately limited from top to bottom.

[0018] In addition, in this embodiment, each positioning block, pressure block, and support block is made of copper blocks. Because copper has good thermal conductivity and electrical conductivity, it can help focus and dissipate heat of the laser, thereby improving the welding quality and avoiding quality problems such as deformation and cracks generated during the welding process. In addition, copper has high chemical stability and is not easy to react with welding materials, which can ensure the stability and consistency of the welding process.

[0019] Furthermore, the cross section of the second sliding block 12 is T-shaped. The T-shaped structure enables the second sliding block 12 to provide more stable support for the second positioning block 10, thereby improving structural stability.

[0020] Furthermore, a vertical plate 15 is fixedly provided on the workbench 1, a mounting plate is provided on the top of the vertical plate 15, and a hand-pull regulating valve 16 is provided above the mounting plate. The provision of the hand-pull regulating valve 16 facilitates workers to adjust and control each cylinder.

[0021] The clamping device can effectively and accurately limit and fix the welding workpiece from the inside to the outside and from the top to the bottom, which is convenient for subsequent welding operations, improves processing efficiency, improves processing accuracy and ensures the final processing quality.

[0022] It is worth noting that the technical features such as the slide cylinder and lifting cylinder involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0023] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made by technicians in the relevant technical field based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser welding clamping device, characterized in that: It includes a workbench, on which an internal supporting mechanism, an external clamping mechanism, and a downward limiting mechanism are arranged, and a processing station is arranged on the workbench, and the internal supporting mechanism includes a first positioning seat, a first double-rod sliding cylinder, a first positioning block, and a first internal supporting block. The first positioning seat is fixedly arranged on the left side of the processing station, and the first positioning seat is fixedly connected to the first positioning block, and the first positioning block is in contact with the left outer surface of the workpiece. A first slider is arranged on the slide of the first double-rod sliding cylinder, and the first double-rod sliding cylinder is used to drive the first slider to reciprocate in a straight line in the left and right directions. The first slider is fixedly connected to the first internal supporting block, and the first internal supporting block is in contact with the left inner surface of the workpiece. The external clamping mechanism It includes a second positioning seat, a second double-rod slide cylinder, a second positioning block, and a second inner support block. The second positioning seat is fixed on the workbench, the second positioning seat is fixedly connected to the second inner support block, the second inner support block fits with the right inner surface of the workpiece, the second double-rod slide cylinder is arranged on the right side of the processing station, and a second slider is arranged on the slide of the second double-rod slide cylinder, the second slider is fixedly connected to the second positioning block, and the second positioning block fits with the right outer surface of the workpiece. The downward pressure limiting mechanism includes a support frame and a lifting cylinder. The lifting cylinder is fixed on the workbench through the support frame, the lifting cylinder is located above the processing station, and the piston rod of the lifting cylinder faces downward and is connected to a pressure block.

2. A laser welding clamping device according to claim 1, characterized in that: There are two support frames, which are respectively located at the left and right ends of the processing station. A lifting cylinder is installed on each support frame, and the two lifting cylinders are symmetrically arranged on the left and right.

3. A laser welding clamping device according to claim 2, characterized in that: The pressing block is provided with a trapezoidal limiting groove which is narrow at the top and wide at the bottom.

4. A laser welding clamping device according to claim 3, characterized in that: The cross section of the second sliding block is T-shaped.

5. A laser welding clamping device according to claim 4, characterized in that: A vertical plate is fixedly arranged on the workbench, a mounting plate is arranged on the top of the vertical plate, and a hand-pull regulating valve is arranged above the mounting plate.

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