Auxiliary welding tool

Abstract

The invention provides an auxiliary welding tool. The auxiliary welding tool comprises a workpiece containing table, a short frame positioning unit, a long frame positioning unit and a side clamping unit. The short frame positioning unit is arranged on the table top and the side face of the workpiece containing table and comprises a positioning device, a middle frame clamping and positioning device and a first frame clamping and positioning device. The long frame positioning unit is arranged on the table surface of the workpiece placing table and comprises a second frame clamping and positioning device and a third frame clamping and positioning device; the positioning device and a positioning device part in the third frame clamping and positioning device are arranged on the inner side of a workpiece frame; the side clamping unit is arranged on the side face of the short frame of the workpiece containing table and comprises a middle frame clamping device. According to the auxiliary tool applied to the welding locomotive production process, the welding precision fluctuation is small, the welding precision alignment and the welding process stability are ensured, and then the quality of a welded finished product is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing, and in particular to an auxiliary welding tool. Background Art

[0002] Tooling is an indispensable auxiliary tool in the process of mechanical processing, product inspection, assembly and welding. Their main function is to install and fix the processing object to ensure that it is in the correct position, thereby ensuring the quality of parts and products and significantly improving production efficiency. Specifically, welding tooling is a special process equipment specially used for welding process. The main function of welding tooling is to accurately position and reliably clamp the welding structure to facilitate assembly and welding operations and ensure that the dimensional accuracy of the welded structure meets the design requirements. Since welding tooling is usually specially designed for the assembly welding process of a certain specific welding structure, most of them are non-standard devices. This means that in order to meet the product structure characteristics, production conditions and actual needs of the factory, these welding tooling needs to be designed and manufactured by ourselves, or customized in consultation with external manufacturers. The design of welding tooling is an important part of production preparation and one of the main tasks of welding production process design. In actual production, a new locomotive product often needs to manufacture dozens of welding tooling. The different accuracy of auxiliary welding tooling will lead to fluctuations in welding quality, which in turn affects the performance and reliability of the entire locomotive product. Summary of the invention

[0003] According to the technical problem that the difference in the precision of the auxiliary welding tooling may lead to fluctuations in welding quality, an auxiliary welding tooling is provided. The present invention designs an auxiliary tooling applied to the production process of welding locomotives, which reduces the fluctuation of welding precision and improves the welding quality.

[0004] The technical means adopted by the present invention are as follows:

[0005] An auxiliary welding tool, comprising: a workpiece placement table, a short frame positioning unit, a long frame positioning unit, and a side clamping unit;

[0006] A short frame positioning unit, which is arranged on the table top and side of the workpiece placement table, comprises a first positioning device, a middle frame clamping positioning device and a first frame clamping positioning device;

[0007] A long frame positioning unit, which is arranged on the workpiece placement table, and includes a second frame clamping and positioning device and a third frame clamping and positioning device;

[0008] Wherein, the positioning device and the positioning device part of the third frame clamping positioning device are arranged on the inner side of the workpiece frame;

[0009] The side clamping unit is arranged on the side of the short frame of the workpiece placement table and includes a middle frame clamping device.

[0010] Furthermore, the first positioning device is arranged on the workpiece placement table surface, and includes a T-shaped piece and two concave pieces.

[0011] Furthermore, the middle frame clamping and positioning device is arranged on the table top of the workpiece placement table, and includes a first screw, a first clamp arm, a first support plate, and a first rib plate; the right side inclined surfaces of the two support plates are positioning surfaces and supporting surfaces; the first screw and the first clamp arm are used to position the middle frame of the workpiece.

[0012] Furthermore, the first frame clamping and positioning device is arranged on the side of the long frame of the workpiece placement table, and includes a second screw, a second clamp arm, a second support plate, and a first bottom plate; the first bottom plate is fixed to the side of the long frame of the workpiece placement table, and two support plates are fixed to the first bottom plate to support the second screw and the second clamp arm.

[0013] Furthermore, the second frame clamping and positioning device includes a third screw, a third clamp arm, a third support plate, and a second rib plate; the right side inclined surfaces of the two support plates are positioning support surfaces; the third screw and the third clamp arm are used to clamp the workpiece frame.

[0014] Furthermore, the third frame clamping and positioning device includes a fourth screw, a fourth clamp arm, a fourth support plate, and a second positioning device; the second positioning device includes two T-shaped parts and three concave parts, and the inclined surfaces of the three concave parts are positioning surfaces and support surfaces; the fourth screw and the fourth clamp arm are used to clamp the workpiece frame.

[0015] Furthermore, the side clamping unit includes a fifth screw, a fifth clamp arm, a fifth support plate, and a second base plate; the second base plate is fixed to the side of the short frame of the workpiece placement table, and two support plates are fixed to the second base plate to support the fifth screw and the fifth clamp arm.

[0016] Furthermore, the support plate and the clamp arm are respectively provided with two upper and lower penetrating and concentric circular holes, the lower hole is used for bolt connection, and the upper hole is used for pin positioning.

[0017] Furthermore, the workpiece placement table surface is provided with an insertion interface.

[0018] Furthermore, the short frame positioning units and the long frame positioning units are arranged in an array on the workpiece placement table;

[0019] The short frame positioning units are odd-numbered units, and the long frame positioning units are even-numbered units.

[0020] An auxiliary welding tooling workbench comprises: a short frame positioning unit, a long frame positioning unit, and a side clamping unit.

[0021] Due to the adoption of the above technical solution, compared with the prior art, the present invention has the following advantages:

[0022] 1. The auxiliary welding tool provided by the present invention has a plurality of clamping and positioning devices respectively arranged on the short frame and the long frame of the workpiece placement table, which can accurately position the workpiece frame from different angles and positions, thereby ensuring the accurate position of the workpiece during the welding process, thereby improving the welding quality.

[0023] 2. In an auxiliary welding tool provided by the present invention, the right inclined surfaces of multiple support plates are set as positioning surfaces and supporting surfaces, providing stable support and accurate positioning for the workpiece, further ensuring the welding accuracy.

[0024] 3. The auxiliary welding tool provided by the present invention has different clamping and positioning devices respectively provided with a lead screw and a clamp arm, and the clamping force and position can be flexibly adjusted according to the size and shape of different workpieces to meet the welding requirements of various workpieces.

[0025] 4. The auxiliary welding tool provided by the present invention has a layout of different units that can better adapt to workpieces of different sizes, thereby improving the versatility of the tool.

[0026] 5. The auxiliary welding tool provided by the present invention is provided with structures such as a support plate, a rib plate and a bottom plate to provide stable support for the lead screw and the clamp arm, ensuring that the tool will not shake or deform during the welding process.

[0027] 6. The auxiliary welding fixture provided by the present invention has two concentric circular holes on the clamp arm and the support plate, the lower hole is used for bolt connection, and the upper hole is used for pin positioning. This design makes the installation and disassembly of the device more convenient and improves work efficiency. At the same time, the workpiece placement table is provided with an insertion interface, which is convenient for connection and use with other equipment or tools.

[0028] Based on the above reasons, the present invention can be promoted in the field of mechanical processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 It is a schematic diagram of the overall structure of an auxiliary welding tooling according to the present invention;

[0031] Figure 2It is a working schematic diagram of an auxiliary welding tool according to the present invention;

[0032] Figure 3 It is a structural schematic diagram of an auxiliary welding tool positioning device according to the present invention;

[0033] Figure 4 It is a structural schematic diagram of a middle frame clamping and positioning device of an auxiliary welding tooling according to the present invention;

[0034] Figure 5 It is a structural schematic diagram of a first frame clamping and positioning device of an auxiliary welding tooling according to the present invention;

[0035] Figure 6 It is a structural schematic diagram of a second frame clamping and positioning device of an auxiliary welding tool according to the present invention;

[0036] Figure 7 It is a structural schematic diagram of a third frame clamping and positioning device of an auxiliary welding tooling according to the present invention;

[0037] Figure 8 The present invention is a schematic structural diagram of a middle frame clamping device for an auxiliary welding tool.

[0038] In the figure: 1. workpiece placement table; 2. first positioning device; 3. middle frame clamping and positioning device; 4. first side frame clamping and positioning device; 5. second side frame clamping and positioning device; 6. third side frame clamping and positioning device; 7. middle frame clamping device; 8. T-shaped piece; 9. concave piece; 10. first lead screw; 11. first clamp arm; 12. first support plate; 13. first rib plate; 14. second lead screw; 15. second clamp arm; 16. second support plate; 17. first bottom plate; 18. third lead screw; 19. third clamp arm; 20. third support plate; 21. second rib plate; 22. positioning support surface; 23. fourth lead screw; 24. fourth clamp arm; 25. fourth support plate; 26. second positioning device; 27. fifth lead screw; 28. fifth clamp arm; 29. ​​fifth support plate; 30. second bottom plate. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0044] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0045] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0046] like Figures 1 to 2 As shown, the present invention provides an auxiliary welding tooling workbench, including: a short frame positioning unit, a long frame positioning unit, and a side clamping unit.

[0047] like Figures 3 to 8 As shown, the present invention also provides an auxiliary welding tool, including: a workpiece placement table 1, a short frame positioning unit, a long frame positioning unit, and a side clamping unit;

[0048] A short frame positioning unit, which is arranged on the table top and side surface of the workpiece placement table 1, comprises a first positioning device 2, a middle frame clamping positioning device 3 and a first frame clamping positioning device 4;

[0049] A long frame positioning unit, which is arranged on the workpiece placement table 1, and includes a second frame clamping and positioning device 5 and a third frame clamping and positioning device 6;

[0050] Wherein, the positioning device and the positioning device part of the third frame clamping positioning device 6 are arranged on the inner side of the workpiece frame;

[0051] The side clamping unit is arranged on the side of the short frame of the workpiece placement platform 1 and includes a middle frame clamping device 7.

[0052] Furthermore, the first positioning device 2 is arranged on the surface of the workpiece placement table 1, and includes a T-shaped piece 8 and two concave pieces 9, which are used to position the inner side of the short frame of the workpiece.

[0053] Furthermore, the middle frame clamping and positioning device 3 is arranged on the table top of the workpiece placement table 1, including a first screw 10, a first clamp arm 11, a first support plate 12, and a first rib plate 13; the right side inclined surfaces of the two support plates are positioning surfaces and supporting surfaces; the first screw 10 and the first clamp arm 11 are used to position the middle frame of the workpiece.

[0054] Furthermore, the first lead screw 10 cooperates with the first clamp arm 11 to act on the short frame of the workpiece to accurately position it without causing shaking during the workpiece processing.

[0055] Furthermore, the first frame clamping and positioning device 4 is arranged on the side of the long frame of the workpiece placement table 1, and includes a second screw 14, a second clamp arm 15, a second support plate 16, and a first bottom plate 17; the first bottom plate 17 is fixed to the side of the long frame of the workpiece placement table 1, and two support plates are fixed on the first bottom plate 17 to support the second screw 14 and the second clamp arm 15.

[0056] Furthermore, the second lead screw 14 cooperates with the second clamp arm 15 to act on the side of the long frame of the workpiece, so that the workpiece does not generate left-right displacement during the processing.

[0057] Furthermore, the second frame clamping and positioning device 5 includes a third screw 18, a third clamp arm 19, a third support plate 20, and a second rib plate 21; the right inclined surfaces of the two support plates are positioning support surfaces 22; the third screw 18 and the third clamp arm 19 are used to clamp the workpiece frame.

[0058] Furthermore, the third lead screw 18 cooperates with the third clamp arm 19 to act together on the front side of the long frame of the workpiece, thereby generating downward pressure on the front side of the workpiece to prevent it from shaking.

[0059] Furthermore, the third frame clamping and positioning device 6 includes a fourth screw 23, a fourth clamp arm 24, a fourth support plate 25, and a second positioning device 26; the second positioning device 26 includes two T-shaped parts 8 and three concave parts 9, and the inclined surfaces of the three concave parts 9 are positioning surfaces and supporting surfaces; the fourth screw 23 and the fourth clamp arm 24 are used to clamp the workpiece frame.

[0060] Furthermore, the fourth lead screw 23, the fourth clamp arm 24 and the second positioning device 26 cooperate to position and press the workpiece.

[0061] Furthermore, the side clamping unit includes a fifth screw 27, a fifth clamp arm 28, a fifth support plate 29, and a second base plate 30; the second base plate 30 is fixed to the side of the short frame of the workpiece placement table 1, and two support plates are fixed on the second base plate 30 to support the fifth screw and the fifth clamp arm 28.

[0062] Furthermore, the five-thread rod and the fifth clamp arm 28 cooperate to press and position the workpiece, so that the workpiece does not move in the front-to-back direction during the processing.

[0063] Furthermore, the support plate and the clamp arm are respectively provided with two upper and lower penetrating and concentric circular holes, the lower hole is used for bolt connection, and the upper hole is used for pin positioning.

[0064] Furthermore, the clamp arm and the lead screw are welded together. After the pin is inserted, the clamp arm is fixed, and the workpiece can be clamped by tightening the lead screw. After the lead screw is loosened and the pin is pulled out, the clamp arm can be rotated 90 degrees clockwise around the bolt axis. At this time, the lead screw has been rotated to the side of the workpiece, which is convenient for disassembly of the workpiece.

[0065] Furthermore, the workpiece placement table 1 is provided with an insertion interface on its table top.

[0066] Furthermore, the bottom of the support plate and the rib plate has a protrusion that cooperates with the open insertion interface on the table top of the workpiece placement table 1.

[0067] Furthermore, the short frame positioning units and the long frame positioning units are arranged in an array on the workpiece placement table 1;

[0068] The short frame positioning units are odd-numbered units, and the long frame positioning units are even-numbered units.

[0069] Further, the last positioning unit of the table is an odd-numbered unit.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An auxiliary welding tool, characterized in that: include: Workpiece placement table, short frame positioning unit, long frame positioning unit, side clamping unit; A short frame positioning unit, which is arranged on the table top and side of the workpiece placement table, comprises a first positioning device, a middle frame clamping positioning device and a first frame clamping positioning device; A long frame positioning unit, which is arranged on the workpiece placement table, and includes a second frame clamping and positioning device and a third frame clamping and positioning device; Wherein, the positioning device and the positioning device part of the third frame clamping positioning device are arranged on the inner side of the workpiece frame; The side clamping unit is arranged on the side of the short frame of the workpiece placement table and includes a middle frame clamping device.

2. The auxiliary welding tool according to claim 1, characterized in that: The first positioning device is arranged on the workpiece placement table surface and includes a T-shaped piece and two concave pieces.

3. The auxiliary welding tool according to claim 1, characterized in that: The middle frame clamping and positioning device is arranged on the workpiece placement table surface, and includes a first screw, a first clamp arm, a first support plate, and a first rib plate; the right side inclined surfaces of the two support plates are positioning support surfaces; the first screw and the first clamp arm are used to position the workpiece middle frame.

4. The auxiliary welding tool according to claim 1, characterized in that: The first frame clamping and positioning device is arranged on the side of the long frame of the workpiece placement table, and includes a second screw, a second clamp arm, a second support plate, and a first base plate; the first base plate is fixed to the side of the long frame of the workpiece placement table, and two support plates are fixed to the first base plate to support the second screw and the second clamp arm.

5. The auxiliary welding tool according to claim 1, characterized in that: The second frame clamping and positioning device includes a third screw, a third clamp arm, a third support plate, and a third rib plate; the right side inclined surfaces of the two support plates are positioning surfaces and supporting surfaces; the third screw and the third clamp arm are used to clamp the workpiece frame.

6. The auxiliary welding tool according to claim 1, characterized in that: The third frame clamping and positioning device includes a fourth screw, a fourth clamp arm, a fourth support plate, and a second positioning device; the second positioning device includes two T-shaped parts and three concave parts, and the inclined surfaces of the three concave parts are positioning surfaces and supporting surfaces; the fourth screw and the fourth clamp arm are used to clamp the workpiece frame.

7. The auxiliary welding tool according to claim 1, characterized in that: The side clamping unit includes a fifth screw rod, a fifth clamp arm, a fifth support plate, and a second base plate; the second base plate is fixed to the side of the short frame of the workpiece placement table, and two support plates are fixed to the second base plate to support the fifth screw rod and the fifth clamp arm.

8. An auxiliary welding tool according to any one of claims 3 to 7, characterized in that: The support plate and the clamp arm are respectively provided with two upper and lower penetrating and concentric circular holes, the lower hole is used for bolt connection, and the upper hole is used for latch positioning.

9. The auxiliary welding tool according to claim 1, characterized in that: The workpiece placement table surface is provided with an insertion interface.

10. The auxiliary welding tool according to claim 1, characterized in that: The short frame positioning units and the long frame positioning units are arranged in an array on the workpiece placement table; The short frame positioning units are odd-numbered units, and the long frame positioning units are even-numbered units.

11. An auxiliary welding tooling workbench, characterized in that: include: Short frame positioning unit, long frame positioning unit, side clamping unit.

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