One-time special welding positioning tool for electro-tricycle frame
Through reverse clamping tooling and pneumatic fixture fixture fixtures, the problem of welding difficulties in the bottom accessories of the electric tricycle frame is solved, one-time welding is achieved, welding efficiency and accuracy is improved, labor and site are saved, and costs are reduced.
Patent Information
- Application Number
- CN202420440862.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-03-07
AI Technical Summary
During the welding process of existing electric tricycle frames, the front face of the frame is facing up, which makes it difficult to weld the bottom accessories, and support is required, but the support interferes with the welding gun, resulting in the welding points being unable to reach, and multiple pre-welding and transitions are required to reduce the Efficiency and precision.
The reverse clamping tool is used to place the bottom of the frame facing up on a multi-shaped welding platform, and is fixed by pneumatic clamps and support seats to avoid interference from welding guns, and achieve one-time welding without transition or movement in the middle.
It improves welding efficiency and accuracy, saves labor and site, reduces clamping and welding costs, and achieves efficient welding operations.
Smart Images
Figure CN222307775U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an improvement of an automatic welding tool, in particular to an improvement of an automatic welding tool for an electric tricycle frame. Background Art
[0002] The welding of the existing electric tricycle frames is all forward clamping, that is, the front of the frame faces upward. In this way, the accessories that need to be welded at the bottom of the frame, such as the welding of the lifting ears, require supports to contact the main frame and then weld. However, the support frame will interfere with the welding gun, resulting in many welding points being unable to be reached. Therefore, forward clamping usually requires movement, transfer or additional pre-welding to complete the entire welding work. Multiple pre-weldings must result in the workpiece needing to be transferred, and the transfer requires multiple sites, and additional manpower is required, which is inefficient and costly. Movement and transfer during the welding process will seriously reduce the efficiency of automatic welding and reduce the accuracy of welding, because each movement will cause positioning errors.
[0003] See also Figure 1 It is a structural schematic diagram of an electric tricycle frame A that needs to be welded. The back of the electric tricycle frame A has multiple lifting ears and other components. These lifting ears need to be welded during the welding process. According to the current conventional welding, that is, the front of the frame faces up, it is difficult to automatically weld the numerous welding points at the bottom of the electric tricycle frame at one time. Utility Model Content
[0004] The purpose of the utility model is to provide a one-time special welding positioning tool for an electric tricycle frame in view of the defects and shortcomings of the prior art. The utility model can reversely clamp the electric tricycle frame to be welded, and can simply fix the accessories to the main frame with the help of a fixing fixture. This clamping method avoids the interference of the platform with the welding gun. In automatic welding, all welding points can be reached by the welding gun, so the frame can be welded in one go without the need for transfer or movement in the middle. The overall clamping and welding operations are simple, labor and site are saved, welding operations are efficient, and the clamping and welding costs are reduced.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it comprises a base 1, two side columns 2, a welding bracket 3, and a welding tray 4. The two side columns 2 are respectively fixed on both sides of the base 1, and the two ends of the welding bracket 3 are respectively fixed on the two side columns 2 through hinge plates 5; the side of the welding bracket 3 is in a "J" shape, and a welding tray 4 is arranged on the upper surface of the welding bracket 3, and an electric tricycle frame shaft fixing bracket 6 is arranged on the left side of the welding bracket 3.
[0006] The welding tray 4 is provided with multiple pneumatic clamps 43 and support seats 44. The control end of the pneumatic clamp 43 uses a three-position five-way center-drain manual valve; the support seat 44 is provided on the upper surface of the welding tray 4. The pneumatic clamp 43 controls the cylinder with three gears through a manual valve, one is to open the clamp, one is to close the clamp, and one is to release the pressure. When placing the workpiece manually, the clamp needs to be closed immediately. If the clamps are closed pneumatically one by one, it will be cumbersome. At this time, pressure relief is required. In this state, the clamps can be temporarily closed manually. When demolding is required after welding is completed, all the clamps need to be opened at once, so it is necessary to place the clamp in the gear where the clamp is opened to achieve rapid demolding.
[0007] The pneumatic clamp 43 comprises a bottom plate 431, two side plates 432, a driving cylinder 433, a driving connecting piece 434, a pipe clamp 435, and a pipe pressing plate 436. The driving cylinder 433 passes through and is plugged into the middle part of the bottom plate 431 so that the driving end faces upward, and a driving connecting piece 434 is arranged at the top of the driving cylinder 433; the two side plates 432 are arranged on the base 1 in a U shape, and a plurality of arrays of hinge holes 4321 are respectively arranged on the two side plates 432, and the lower parts of the two groups of pipe clamps 435 are respectively hinged on the hinge holes 4321, and the lower ends of the pipe clamps 435 are connected to the driving connecting piece 434, and a pipe pressing plate 436 is arranged on the inner side of the top end of the pipe clamp 435, and the pipe pressing plate 436 is movably connected to the top end of the pipe clamp 435; a top plate 4361 is arranged on the inner side of the pipe pressing plate 436, and the top plate 4361 is arranged vertically downward. When in use, first move the driving end of the driving cylinder upward to lift the driving connecting plate, driving the pipe clamps on both sides to rotate along the hinge holes, so that the upper parts of the two pipe clamps are opened to both sides. At this time, the clamped steel pipe is inserted. In this state, the driving connecting plate moves downward, and the steel clamps on both sides are retracted and clamped toward the middle. At the same time, the pipe is pressed downward by the pipe pressing plate and the top plate. Since the two sides are pressed toward the middle synchronously and driven by the cylinder, the clamping speed is fast and the clamping is stable.
[0008] The upper surfaces of the welding bracket 3 have different heights. The left upper surface of the welding bracket 3 is higher than the right upper surface. A left welding tray 41 is provided on the left upper surface of the welding bracket 3 , and a right welding tray 42 is provided on the right upper surface of the welding bracket 3 .
[0009] The rotating shaft fixing frame 6 comprises a locking rotating disk 61 and two locking upright frames 62 . The upper parts of the two locking upright frames 62 are provided with a transverse locking shaft 621 .
[0010] The hinge plate 5 is arranged on the inner side of the side column 2, and the two ends of the welding bracket 3 are respectively movably connected to the hinge plate 5 through the connecting piece 31. The welding bracket 3 can rotate freely through the hinge plate 5 or rotate through the driving device.
[0011] A turntable driving device 21 is disposed on one of the two side columns 2 , and the turntable driving device 21 drives the welding bracket 3 to rotate via the hinge plate 5 .
[0012] The working principle of the utility model is as follows: when in use, the electric tricycle frame A is placed on the welding tray 4 with the bottom facing upwards, and is positioned and clamped by the pneumatic clamp 43 and the support seat 44, and the faucet shaft A of the electric tricycle frame A is sleeved on the locking turntable 61. After positioning, locking and fixing, the welding operation of each welding point is carried out by automatic welding equipment. It adopts reverse clamping, and the electric tricycle frame A is placed on the "J"-shaped welding platform 3, and is fixed by the pneumatic clamp 34 and the support seat 44 respectively. At this time, due to the reverse clamping, the original accessory part at the bottom is on the main frame. With the assistance of the clamp, the accessory can be simply fixed to the main frame, and the interference of the platform on the welding gun can be avoided. The welding gun can reach all welding points. In this way, the electric tricycle frame A can be welded in one go.
[0013] After adopting the above technical scheme, the utility model reversely clamps the electric tricycle frame to be welded, and fixes the accessories to the main frame by means of a fixing fixture and with the assistance of the fixture. This clamping method avoids the interference of the platform with the welding gun. In automatic welding, all welding points can be reached by the welding gun, so the frame can be welded in one go without the need for transfer or movement in the middle. The overall clamping and welding operations are simple, labor and space are saved, welding operations are efficient, and the clamping and welding costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model 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 only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0015] Figure 1 It is a structural schematic diagram of an electric tricycle frame A in the background technology;
[0016] Figure 2 It is a structural schematic diagram of the utility model;
[0017] Figure 3 It is a front view of the utility model;
[0018] Figure 4 yes Figure 3 Right view of;
[0019] Figure 5 This is a schematic diagram of the structure of the utility model after the electric tricycle frame A is assembled;
[0020] Figure 6 yes Figure 5 Another angle view of
[0021] Figure 7 yes Figure 5 Front view of;
[0022] Figure 8 yes Figure 7 Left view of
[0023] Fig. 9 It is a schematic diagram of the structure of the pneumatic clamp 43 in the utility model;
[0024] Fig.10 It is a schematic diagram of the structure of the pneumatic clamp 43 in the utility model after the opening is opened;
[0025] Explanation of the reference numerals in the accompanying drawings: base 1, two side columns 2, welding bracket 3, welding tray 4, hinged plate, rotating shaft fixing frame 6, pneumatic clamp 43, supporting seat 44, bottom plate 431, two side plates 432, driving cylinder 433, driving connecting plate 434, pipe clamp 435, pipe pressing plate 436, hinge hole 4321, top plate 4361, left welding tray 41, right welding tray 42, locking turntable 61, locking stand 62, locking shaft 621, turntable driving device 21. DETAILED DESCRIPTION
[0026] See also Figure 2-10 As shown, the technical solution adopted in this specific embodiment is: it comprises a base 1, two side columns 2, a welding bracket 3, and a welding tray 4. The two side columns 2 are respectively fixed on both sides of the base 1, and the two ends of the welding bracket 3 are respectively fixed on the two side columns 2 through hinge plates 5; the side of the welding bracket 3 is in a "J" shape, and a welding tray 4 is arranged on the upper surface of the welding bracket 3, and an electric tricycle frame shaft fixing bracket 6 is arranged on the left side of the welding bracket 3.
[0027] The welding tray 4 is provided with a plurality of pneumatic clamps 43 and support seats 44 . The control end of the pneumatic clamp 43 uses a three-position five-way center-drain manual valve. The support seat 44 is provided on the upper surface of the welding tray 4 .
[0028] The upper surface heights of the welding bracket 3 are different. The upper surface height of the left side of the welding bracket 3 is higher than that of the upper surface of the right side. The upper surface of the left side of the welding bracket 3 is provided with a left welding tray 41, and the upper surface of the right side of the welding bracket 3 is provided with a right welding tray 42. The rotating shaft fixing frame 6 includes a locking turntable 61 and two locking brackets 62. The upper parts of the two locking brackets 62 are provided with a transverse locking shaft 621. The hinge plate 5 is provided on the inner side of the side column 2, and the two ends of the welding bracket 3 are movably connected to the hinge plate 5 through the connecting piece 31. A turntable driving device 21 is provided on one of the two side columns 2, and the turntable driving device 21 drives the welding bracket 3 to rotate through the hinge plate 5.
[0029] The pneumatic clamp 43 comprises a bottom plate 431, two side plates 432, a driving cylinder 433, a driving connecting piece 434, a pipe clamp 435, and a pipe pressing plate 436. The driving cylinder 433 passes through and is plugged into the middle part of the bottom plate 431 so that the driving end faces upward, and a driving connecting piece 434 is arranged at the top of the driving cylinder 433; the two side plates 432 are arranged on the base 1 in a U shape, and a plurality of arrays of hinge holes 4321 are respectively arranged on the two side plates 432, and the lower parts of the two groups of pipe clamps 435 are respectively hinged on the hinge holes 4321, and the lower ends of the pipe clamps 435 are connected to the driving connecting piece 434, and a pipe pressing plate 436 is arranged on the inner side of the top end of the pipe clamp 435, and the pipe pressing plate 436 is movably connected to the top end of the pipe clamp 435; a top plate 4361 is arranged on the inner side of the pipe pressing plate 436, and the top plate 4361 is arranged vertically downward.
[0030] When in use, the electric tricycle frame A is placed on the welding tray 4 with the bottom facing upwards, and is positioned and clamped by the pneumatic clamp 43 and the support seat 44. The faucet shaft A of the electric tricycle frame A is sleeved on the locking turntable 61. After positioning, locking and fixing, the welding operation of each welding point is carried out by automatic welding equipment. It adopts reverse clamping, and the electric tricycle frame A is placed on the "J"-shaped welding platform 3, and is fixed by the pneumatic clamp 34 and the support seat 44 respectively. At this time, due to the reverse clamping, the original accessory part at the bottom is on the main frame. With the assistance of the clamp, the accessory can be simply fixed to the main frame, and the interference of the platform on the welding gun can be avoided. The welding gun can reach all welding points. In this way, the electric tricycle frame A can be welded in one go.
[0031] After adopting the above technical scheme, the utility model reversely clamps the electric tricycle frame to be welded, and fixes the accessories to the main frame by means of a fixing fixture and with the assistance of the fixture. This clamping method avoids the interference of the platform with the welding gun. In automatic welding, all welding points can be reached by the welding gun, so the frame can be welded in one go without the need for transfer or movement in the middle. The overall clamping and welding operations are simple, labor and space are saved, welding operations are efficient, and the clamping and welding costs are reduced.
[0032] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.
Claims
1. A one-time special welding and positioning tool for an electric tricycle frame, characterized by: The invention comprises a base (1), two side columns (2), a welding bracket (3), and a welding tray (4); the two side columns (2) are respectively fixedly arranged on both sides of the base (1); the two ends of the welding bracket (3) are respectively fixed on the two side columns (2) through hinge plates (5); the side edge of the welding bracket (3) is in the shape of a Chinese character "J", the welding tray (4) is arranged on the upper surface of the welding bracket (3), and the electric tricycle frame shaft fixing bracket (6) is arranged on the left side of the welding bracket (3).
2. The one-time special welding and positioning tool for the electric tricycle frame according to claim 1 is characterized in that: The welding tray (4) is provided with a plurality of pneumatic clamps (43) and support seats (44); the control end of the pneumatic clamp (43) is a three-position five-way center-drain manual valve; and the support seat (44) is provided on the upper surface of the welding tray (4).
3. The one-time special welding and positioning tool for the electric tricycle frame according to claim 2 is characterized in that: The pneumatic clamp (43) comprises a bottom plate (431), two side plates (432), a driving cylinder (433), a driving connecting plate (434), a pipe clamp (435), and a pipe pressing plate (436). The driving cylinder (433) passes through and is plugged into the middle of the bottom plate (431) with the driving end facing upward. The top of the driving cylinder (433) is provided with a driving connecting plate (434); the two side plates (432) are arranged on the base (1) in a U shape, and the two side plates (432) are respectively provided with An array of hinge holes (4321) is provided, and the lower parts of the two groups of pipe clamps (435) are respectively hinged on the hinge holes (4321), and the lower ends of the pipe clamps (435) are connected to the driving connecting plate (434). A pipe pressing plate (436) is provided on the inner side of the top end of the pipe clamp (435), and the pipe pressing plate (436) is movably connected to the top end of the pipe clamp (435); a top plate (4361) is provided on the inner side of the pipe pressing plate (436), and the top plate (4361) is provided vertically downward.
4. The one-time special welding and positioning tool for the electric tricycle frame according to claim 1 is characterized in that: The upper surfaces of the welding bracket (3) have different heights. The left upper surface of the welding bracket (3) is higher than the right upper surface. A left welding tray (41) is provided on the left upper surface of the welding bracket (3), and a right welding tray (42) is provided on the right upper surface of the welding bracket (3).
5. The one-time special welding and positioning tool for the electric tricycle frame according to claim 1 is characterized in that: The rotating shaft fixing frame (6) comprises a locking rotating disk (61) and two locking upright frames (62). The upper parts of the two locking upright frames (62) are provided with a transverse locking shaft (621).
6. The one-time special welding and positioning tool for the electric tricycle frame according to claim 1 is characterized in that: The hinge plate (5) is arranged on the inner side of the side column (2), and the two ends of the welding bracket (3) are movably connected to the hinge plate (5) through connecting pieces (31) respectively.
7. The one-time special welding and positioning tool for the electric tricycle frame according to claim 1 is characterized in that: A turntable driving device (21) is arranged on one of the two side columns (2), and the turntable driving device (21) drives the welding bracket (3) to rotate via a hinge plate (5).