Welding fixture for footrest component
By designing a welding fixture including fixture seat, pressing plate and pressing cylinder, the precise positioning and compression of footrest components is achieved by using positioning pins, work-type inserts and pins, the problem of lack of effective welding fixtures in the prior art is solved. , realizes an efficient and precise welding process.
Patent Information
- Application Number
- CN202421197219.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-29
AI Technical Summary
There is a lack of welding fixtures that can effectively locate and press the footrest components in the prior art, especially when the direction of the hinge holes of the U-shaped hinge ears is required.
A welding fixture including a fixture seat, a pressing plate and a pressing cylinder is designed. Through the connecting hole of the positioning pin and the support plate, the working insert block is matched with the U-shaped hinge, and the pin is fitted on the hinge hole of the U-shaped hinge. , realize accurate positioning and compression of footrest components.
Two welding can be completed by one clamping, which reduces the number of clamping times, improves work efficiency, reduces production costs, improves welding accuracy, and avoids positioning errors caused by secondary clamping.
Smart Images
Figure CN222429793U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a welding fixture for a footrest component. Background Art
[0002] See also Figure 1 , which is a split exploded view of a footrest component before welding. The footrest component is welded together by a support plate N-1, a connecting column N-2 and a U-shaped hinge ear N-3 during production (see Figure 2-3 ).
[0003] When welding the footrest, the support plate N-1, the connecting column N-2 and the U-shaped hinge ear N-3 need to be positioned and pressed against each other. In particular, the direction of the hinge hole N-31 of the U-shaped hinge ear N-3 requires precision and is difficult to control, which requires the use of a special fixture. After searching, no fixture for positioning and pressing the footrest when welding is disclosed.
[0004] In addition, since the connecting column N-2 and the U-shaped hinge ear N-3 are relatively small in size, and have two welding positions (the first welding position and the second welding position), the welding fixture of the present application needs to be designed and developed to meet the requirements of completing two welding positions with one clamping, requiring that the welding gun should not interfere with the two welding positions, and facilitating loading and unloading, etc. Utility Model Content
[0005] The utility model provides a footrest component welding fixture to solve the problem of how to position and press the existing footrest component during welding.
[0006] In order to achieve the above-mentioned purpose, the scheme of the utility model is: a welding fixture for a footrest component, characterized in that: it includes a fixture seat, a pressure plate and a pressure cylinder; the fixture seat is provided with a left vertical plate and a right vertical plate arranged relatively at a distance; three positioning pins are provided on the left side surface of the right vertical plate; the three positioning pins are used to respectively cooperate with the three connecting holes on the support plate of the footrest component; the pressure cylinder is horizontally installed on the left vertical plate; the pressure plate is located between the left vertical plate and the right vertical plate; the output end of the pressure cylinder is fixedly connected to the pressure plate; an I-shaped plug is provided in the middle of the right side surface of the pressure plate; the I-shaped plug is used to cooperate with the U-shaped hinge ear of the footrest component.
[0007] Furthermore, the I-shaped plug block is integrated with the pressing plate.
[0008] Furthermore, it also includes a latch; a vertical through hole is provided in the middle of the I-shaped plug block; the latch is used to be simultaneously installed on the vertical through hole and the two hinge holes of the U-shaped hinge ear of the footrest component.
[0009] Furthermore, the latch includes an insertion section and a handle section.
[0010] Furthermore, the latch is made of wear-resistant material.
[0011] Furthermore, the pressure cylinder is a pneumatic telescopic cylinder.
[0012] Beneficial effects of the utility model:
[0013] First, the utility model can not only perform circumferential welding of the contact between the connecting column and the support plate by the welding gun, but also perform circumferential welding of the contact between the U-shaped hinge ear and the connecting column; the footrest component can be welded after one-time clamping, so two weldings can be completed by one clamping, which can reduce the number of clamping times, improve work efficiency, reduce production costs, improve welding accuracy, and avoid repeated positioning errors caused by secondary clamping;
[0014] Second, after the U-shaped hinge ear, the connecting column and the support plate are positioned and pressed, there is no circumferential obstruction at the contact between the connecting column and the support plate, and there is no circumferential obstruction at the contact between the U-shaped hinge ear and the connecting column, so there will be no interference with the welding gun, thereby meeting the production technical requirements;
[0015] Third, the utility model is simple to operate when the U-shaped hinge ear, the connecting column and the supporting plate are positioned and placed during clamping, and can realize automatic clamping at the same time. The U-shaped hinge ear, the connecting column and the supporting plate are clamped left and right by the pressing plate and the right vertical plate. Since the U-shaped hinge ear, the connecting column and the supporting plate are positioned relative to each other, they are very firm and stable and will not loosen during welding, thereby ensuring welding accuracy.
[0016] Fourth, after welding is completed, the pressure cylinder drives the pressing plate to move horizontally to the left and automatically reset, leaving a safe distance for taking out the parts; then the footrest component can be directly and easily taken out from the right vertical plate, without the problem of interference in taking out the parts, and the parts can be easily unloaded, which is extremely simple to operate and saves time and effort;
[0017] Fifth, the utility model can solve the problem that the U-shaped hinge ear may loosen and fall from the I-shaped plug block due to vibration when the pressure cylinder drives the pressing plate to press and move. Therefore, the utility model can make the pressing more stable and reliable, and at the same time make the positioning and matching accuracy between the U-shaped hinge ear and the I-shaped plug block higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The present invention is a split exploded view of an existing footrest component before welding.
[0019] Figure 2-3 The utility model is a structural schematic diagram of an existing footrest component (i.e. a finished product) after welding.
[0020] Figure 4 It is a front view of a welding fixture for a footrest component in the first embodiment of the utility model.
[0021] Figure 5 It is a top view of a welding fixture for a footrest component in the first embodiment of the utility model.
[0022] Figure 6-7 It is a three-dimensional diagram of a welding fixture for a footrest component in the first embodiment of the utility model.
[0023] Figure 8-9 It is a stereoscopic view of a footrest component welding fixture in the first embodiment of the utility model when the support plate, the connecting column and the U-shaped hinge ear are positioned but not pressed.
[0024] Fig.10 It is a front view of a footrest component welding fixture in embodiment 1 of the utility model when welding after positioning and pressing the support plate, the connecting column and the U-shaped hinge ear.
[0025] Fig.11 It is a stereoscopic view of a footrest component welding fixture in the first embodiment of the utility model when welding after the support plate, the connecting column and the U-shaped hinge ear are positioned and pressed.
[0026] Fig.12 It is a three-dimensional diagram of a footrest component welding fixture in Embodiment 1 of the present utility model when it is released and reset after welding is completed.
[0027] Figure 13-14 It is a stereoscopic diagram of a welding fixture for a footrest component in the second embodiment of the utility model.
[0028] Fig.15 It is a stereoscopic view of a footrest welding fixture in Embodiment 2 of the present utility model when the support plate, the connecting column and the U-shaped hinge ear are positioned but the latch is not inserted.
[0029] Fig.16 It is a stereoscopic view of a footrest welding fixture in Embodiment 2 of the present utility model when the support plate, the connecting column and the U-shaped hinge ear are positioned and the latch is inserted into place.
[0030] Fig.17 It is a stereoscopic view of a footrest component welding fixture in the second embodiment of the present utility model when welding after the support plate, the connecting column and the U-shaped hinge ear are positioned and pressed. DETAILED DESCRIPTION
[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0032] Example 1: See Figure 4-12 A footrest component welding fixture comprises a fixture seat 1, a pressing plate 2 and a pressing cylinder 3.
[0033] Specifically, the clamp seat 1 has a left vertical plate 1-1 and a right vertical plate 1-2 that are fixedly arranged at a relative interval; three positioning pins 4 are fixedly arranged on the left side surface of the right vertical plate 1-2; the three positioning pins 4 are respectively inserted into the three connecting holes N-11 on the support plate N-1 of the footrest component to achieve positioning fit.
[0034] The pressure cylinder 3 is horizontally fixedly installed on the left vertical plate 1 - 1 ; the pressure plate 2 is located between the left vertical plate 1 - 1 and the right vertical plate 1 - 2 ; the output end of the pressure cylinder 3 is fixedly connected to the left end surface of the pressure plate 2 .
[0035] Among them, an I-shaped plug block 5 is fixedly provided in the middle of the right side surface of the pressure plate 2; the I-shaped plug block 5 is used for plugging and matching with the U-shaped hinge ear N-3 of the footrest component.
[0036] Furthermore, the I-shaped plug block 5 is integrated with the pressing plate 2. In this way, the I-shaped plug block 5 will not loosen.
[0037] Furthermore, the pressure cylinder 3 is a pneumatic telescopic cylinder.
[0038] When the first embodiment is used for welding and clamping the footrest component, the following method and steps can be adopted:
[0039] S10, respectively match the three connection holes N-11 on the support plate N-1 with the three positioning pins 4 on the left side of the right vertical plate 1-2 of the fixture seat 1, and make the support plate N-1 and the left side of the right vertical plate 1-2 contact each other. At this time, the support plate N-1 is completely positioned (see Figure 8-9 );
[0040] S20, the positioning section N-21 of the connecting column N-2 is completely inserted into the positioning hole N-12 on the support plate N-1 to be positioned (see Figure 8-9 );
[0041] S30, the U-shaped hinge ear N-3 is plugged into the I-shaped plug block 5, the U-shaped hinge ear N-3 cannot rotate on the I-shaped plug block 5, and the two hinge holes N-31 on it are accurately positioned (i.e. vertically upward), and are limited to forward and backward displacement and leftward displacement (see Figure 8-9 );
[0042] S40, start the pressure cylinder 3 to work, and the pressure cylinder 3 drives the pressure plate 2 and the I-shaped plug block 5 and the U-shaped hinge ear N-3 thereon to move horizontally to the right as a whole, and then the pressure plate 2 will press the U-shaped hinge ear N-3, the connecting column N-2 and the support plate N-1 in sequence, and then continue to press with pressure; at this time, the U-shaped hinge ear N-3, the connecting column N-2 and the support plate N-1 are mutually positioned and pressed, and at the same time, the directions of the two hinge holes N-31 on the U-shaped hinge ear N-3 are accurate (see Figure 10-11 );
[0043] S50, welding: first, the welding gun performs circumferential welding on the contact between the connecting column N-2 and the support plate N-1, thereby completing the circumferential welding of the first welding point; then the welding gun performs circumferential welding on the contact between the U-shaped hinge ear N-3 and the connecting column N-2, thereby completing the circumferential welding of the second welding point; at this time, the footrest component is welded (see Figure 10-11 );
[0044] S60, start the pressure cylinder 3 to work, and the pressure cylinder 3 drives the pressure plate 2 to move horizontally to the left to reset, and the I-shaped plug block 5 will pull out the U-shaped hinge ear N-3 (see Fig.12 ), and at the same time leave a safe distance for picking up the items (see Figure 8-9 ); then directly remove the footrest component from the right vertical plate 1-2.
[0045] The first embodiment has the following features and is analyzed as follows:
[0046] First, the clamp of this embodiment can not only perform circumferential welding on the contact between the connecting column N-2 and the support plate N-1, but also perform circumferential welding on the contact between the U-shaped hinge ear N-3 and the connecting column N-2; at this time, the footrest component is obtained by welding, so the two weldings can be completed by one clamping, which can reduce the number of clamping times, improve work efficiency, reduce production costs, improve welding accuracy, and avoid positioning errors caused by secondary clamping;
[0047] Second, after the clamp of this embodiment positions and presses the U-shaped hinge ear N-3, the connecting column N-2 and the support plate N-1, there is no circumferential obstruction at the contact between the connecting column N-2 and the support plate N-1, and there is no circumferential obstruction at the contact between the U-shaped hinge ear N-3 and the connecting column N-2, so there will be no interference with the welding gun; thus meeting the production technical requirements;
[0048] Third, in this embodiment, the U-shaped hinge ear N-3, the connecting column N-2 and the support plate N-1 are simple to operate when they are positioned and placed during clamping, and automatic clamping can be achieved at the same time. The U-shaped hinge ear N-3, the connecting column N-2 and the support plate N-1 are clamped left and right by the pressing plate and the right vertical plate 1-2. Since the U-shaped hinge ear N-3, the connecting column N-2 and the support plate N-1 are mutually positioned, they are very firm and stable, and will not loosen during welding, which can ensure welding accuracy;
[0049] Fourth, after welding is completed, the pressure cylinder 3 drives the pressure plate 2 to move horizontally to the left and automatically reset, leaving a safe distance for taking out the parts; then the footrest component can be directly and easily taken out from the right vertical plate 1-2, there is no problem of interference in taking out the parts, the parts can be easily unloaded, the operation is extremely simple, and it saves time and effort.
[0050] Embodiment 2: This embodiment is based on Embodiment 1 and is further improved:
[0051] See also Figure 13-17 , this embodiment also includes a latch 6; a vertical through hole 5-1 is opened in the middle of the I-shaped plug block 5; the latch 6 is used to be simultaneously installed on the vertical through hole 5-1 and the two hinge holes N-31 of the U-shaped hinge ear N-3 of the footrest component.
[0052] Furthermore, the latch 6 comprises an insertion section 6-1 and a handle section 6-2. The handle section 6-2 facilitates operation.
[0053] Furthermore, the latch 6 is made of wear-resistant material. Due to its wear resistance, the latch 6 reduces the friction effect when being inserted or pulled out continuously, and can ensure long-term stable operation and extend the service life.
[0054] When the second embodiment is used for welding and clamping the footrest component, the following method and steps can be adopted:
[0055] K10, respectively match the three connection holes N-11 on the support plate N-1 with the three positioning pins 4 on the left side of the right vertical plate 1-2 of the fixture seat 1, and the support plate N-1 is in contact with the left side of the right vertical plate 1-2. At this time, the support plate N-1 is completely positioned (see Fig.15 );
[0056] K20, completely insert the positioning section N-21 of the connecting column N-2 into the positioning hole N-12 on the support plate N-1 to position it (see Fig.15 );
[0057] K30, first plug the U-shaped hinge ear N-3 into the I-shaped plug block 5, and then install the pin 6 through the vertical through hole 5-1 and the two hinge holes N-31 of the U-shaped hinge ear N-3 at the same time (see Fig.16 ); at this time, the U-shaped hinge ear N-3 cannot rotate on the I-shaped plug block 5, and the two hinge holes N-31 thereon are precisely positioned in the direction (ie, vertically facing upward), and are limited to forward and backward displacement and left and right displacement;
[0058] K40, start the pressure cylinder 3 to work, the pressure cylinder 3 drives the pressure plate 2 and the I-shaped plug 5 and the U-shaped hinge ear N-3 on it to move horizontally to the right as a whole, and then the pressure plate 2 presses the U-shaped hinge ear N-3, the connecting column N-2 and the support plate N-1 in sequence, and then continues to press with pressure; at this time, the U-shaped hinge ear N-3, the connecting column N-2 and the support plate N-1 are mutually positioned and pressed, and at the same time, the directions of the two hinge holes N-31 on the U-shaped hinge ear N-3 are accurate (see Fig.17 );
[0059] K50, welding: first, the welding gun performs circumferential welding on the contact between the connecting column N-2 and the support plate N-1, thereby completing the circumferential welding of the first welding point; then the welding gun performs circumferential welding on the contact between the U-shaped hinge ear N-3 and the connecting column N-2, thereby completing the circumferential welding of the second welding point; at this time, the footrest component is welded (see Fig.17 );
[0060] K60, first pull out the latch 6; then start the pressure cylinder 3, which drives the pressure plate 2 to move horizontally to the left and reset. The I-type plug block 5 will pull out the U-shaped hinge ear N-3, while leaving a safe distance for taking out the parts; then take out the footrest component directly from the right vertical plate 1-2.
[0061] In the second embodiment, the U-shaped hinge ear N-3 is constrained and connected to the I-shaped plug block 5 by the latch 6 during the pressing process, so that the problem that the U-shaped hinge ear N-3 may loosen and fall from the I-shaped plug block 5 due to vibration when the pressure cylinder 3 drives the pressing plate 2 to move during the pressing process can be solved. Therefore, the second embodiment can make the pressing process more stable and reliable, and at the same time, the positioning and matching accuracy between the U-shaped hinge ear N-3 and the I-shaped plug block 5 is higher.
[0062] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A footrest welding fixture, characterized in that: It comprises a fixture seat (1), a pressing plate (2) and a pressing cylinder (3); The clamp seat (1) is provided with a left vertical plate (1-1) and a right vertical plate (1-2) which are arranged relatively at a distance; Three positioning pins (4) are provided on the left side surface of the right vertical plate (1-2); the three positioning pins (4) are used to respectively cooperate with the three connecting holes (N-11) on the supporting plate (N-1); The pressure cylinder (3) is horizontally mounted on the left vertical plate (1-1); the pressure plate (2) is located between the left vertical plate (1-1) and the right vertical plate (1-2); the output end of the pressure cylinder (3) is fixedly connected to the pressure plate (2); An I-shaped insert block (5) is provided in the middle of the right side surface of the pressing plate (2); the I-shaped insert block (5) is used to cooperate with the U-shaped hinge ear (N-3).
2. A footrest welding fixture as claimed in claim 1, characterized in that: The I-shaped insert block (5) and the pressing plate (2) are integrated.
3. A footrest welding fixture as claimed in claim 1 or 2, characterized in that: Also includes a latch (6); A vertical through hole (5-1) is provided in the middle of the I-shaped plug block (5); The latch pin (6) is used to be simultaneously installed on the vertical through hole (5-1) and the two hinge holes (N-31) of the U-shaped hinge ear (N-3).
4. A footrest welding fixture as claimed in claim 3, characterized in that: The latch (6) comprises an insertion section (6-1) and a handle section (6-2).
5. A footrest welding fixture as claimed in claim 3, characterized in that: The latch pin (6) is made of wear-resistant material.
6. A footrest welding fixture as claimed in claim 1, characterized in that: The pressure cylinder (3) is a pneumatic telescopic cylinder.