Automobile seat rear cushion frame welding fixture
By designing a welding fixture for the rear seat cushion frame of the car seat, using a combination design of clamping positioning blocks and support cylinders, the problems of time-consuming and labor-intensive operation and difficult to guarantee welding quality during the existing welding process are solved, and the welding efficiency and quality are improved.
Patent Information
- Application Number
- CN202421326263.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-12
AI Technical Summary
During the welding process of the rear seat cushion skeleton of existing car seats, the lack of special fixtures causes workers to free up a hand to fix the wire during welding, which is time-consuming and labor-intensive, and the welding quality is difficult to guarantee.
A clamp for welding of the rear seat cushion frame of the car seat is designed, including a clamping positioning block and a support cylinder arranged on the fixing seat. The clamping positioning block can clamp and position the wire by relying on its own elastic tension to facilitate the clamping and ejection of the wire; the support cylinder is used to support the wire during welding to ensure welding quality, and assist in ejecting the wire frame after welding.
Through this fixture, the efficiency of welding the rear seat cushion frame of the car seat is improved, ensuring the improvement of welding quality and making operation more convenient.
Smart Images
Figure CN222711279U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of welding fixtures and relates to a fixture for welding a rear seat cushion frame of an automobile seat. Background Art
[0002] The existing rear seat cushion frames of automobile seats are usually made by welding iron wires. Specifically, workers first place iron wires of different types in a criss-cross pattern to form a three-dimensional frame, and then weld and fix the intersections of the iron wires. However, due to the lack of special clamps to assist in the welding operation, workers need to free up one hand to fix the iron wires during welding. The operation is time-consuming and labor-intensive, and the welding quality cannot be guaranteed. Summary of the invention
[0003] The purpose of the utility model is to solve the above problems in the existing technology and propose a clamp for welding the frame of the rear seat cushion of an automobile seat. The technical problem to be solved by the utility model is how to improve the efficiency of welding the frame of the rear seat cushion of an automobile seat while ensuring the welding quality.
[0004] The purpose of the utility model can be achieved through the following technical solutions:
[0005] A clamp for welding the frame of a rear seat cushion of an automobile comprises a fixing seat, wherein the fixing seat is provided with a plurality of clamping and positioning blocks for positioning iron wires, the top of the clamping and positioning blocks is provided with a clamping groove opened downwardly, the longitudinal section of the clamping groove comprises a straight section 1 and an arc section connected in sequence from top to bottom, and the width of the arc section is greater than the width of the straight section 1, the bottom wall of the clamping groove is provided with an expansion groove downwardly, the longitudinal section of the expansion groove comprises a straight section 2 and an expansion section connected in sequence from top to bottom, and the width of the expansion section is greater than the width of the arc section, and the width of the straight section 2 is less than the width of the straight section 1.
[0006] The clamp for welding the frame of the rear seat cushion of the automobile seat is provided with a clamping and positioning block for positioning the iron wire in advance on the fixing seat. The clamping and positioning block can clamp and position the iron wire by its own elastic tension. Specifically, because the width of the straight section 1 of the clamping groove is smaller than the diameter of the iron wire and the existence of the expansion groove, the groove wall of the straight section 1 of the clamping groove can expand outward, so that the iron wire can continue to move downward to the arc section of the clamping groove. At this time, because the shape of the groove wall of the arc section is adapted to the surface of the iron wire, and the width of the arc section is adapted to the diameter of the iron wire, at this time, The groove wall of the stretched straight section one can be reset after the iron wire leaves. In addition, the width of the straight section one and the width of the straight section two are both smaller than the diameter of the iron wire. After the external force is removed, the iron wire is limited in the arc section of the clamping groove, which makes it very convenient to insert and eject the iron wire. At the same time, different types of iron wires can be placed on the clamping positioning block in turn to form the prototype of the rear seat cushion frame of the car seat. Then, it is only necessary to use an automatic welding machine to weld the overlapping parts of the iron wire, thereby improving the welding efficiency of the rear seat cushion frame of the car seat while ensuring the welding quality.
[0007] In the above-mentioned fixture for welding the rear seat cushion frame of the automobile seat, a plurality of supporting cylinders are also arranged on the fixing seat, and the top surface of the piston rod of the supporting cylinder is arranged in a plane, and the piston rod of the supporting cylinder is arranged in a vertical direction. On the one hand, the supporting cylinder can be used to support the iron wire during welding to ensure the welding quality, and on the other hand, it can assist in ejecting the iron wire frame after welding, making the operation of removing the rear seat cushion frame more convenient.
[0008] In the above-mentioned fixture for welding the rear seat cushion frame of the automobile seat, a support sleeve is provided on the top of the supporting cylinder piston rod, and the top surface of the support sleeve is flush with the top surface of the piston rod. The support sleeve of the above-mentioned structure can increase the contact surface between the top of the piston rod and the iron wire, so that the piston rod can better support the iron wire.
[0009] In the above-mentioned fixture for welding the rear seat cushion frame of the automobile seat, the plurality of supporting cylinders are at least arranged on the same side of the fixing seat. By arranging the plurality of supporting cylinders at least on the same side of the fixing seat, the plurality of supporting cylinders can at least push one side of the welded wire frame out of the clamping groove of the clamping positioning block, so that the operator can easily remove the welded wire frame.
[0010] In the above-mentioned fixture for welding the rear seat cushion frame of the automobile seat, a plurality of mounting blocks are arranged on the fixing seat, and a support column is transversely penetrated on the mounting block, and the support column can move transversely relative to the mounting block. At the position where the mounting block is arranged, the operator adjusts the position of the support column so that the support column abuts against the side of the iron wire, so that the iron wire can be laterally displaced during welding, thereby further ensuring the welding quality.
[0011] In the above-mentioned fixture for welding the rear seat cushion frame of the automobile seat, the fixing seat is in the shape of a rectangular plate, and a plurality of handles are symmetrically arranged on the fixing seat. The rectangular plate shape is consistent with the shape of the rear seat cushion frame, and the handles can facilitate the operator to move the fixing seat.
[0012] In the above-mentioned fixture for welding the rear seat cushion frame of the automobile seat, the fixing seat is provided with a plurality of clearance holes. When in use, the overlapping part of the iron wire contacts the upper and lower sides of the overlapping part of the iron wire at the same time, and the overlapping part of the iron wire is connected together by high temperature and pressure to complete the welding at this position, and the clearance holes can make way for the contact between the lower electrode and the iron wire.
[0013] In the above-mentioned fixture for welding the rear seat cushion frame of the automobile seat, the clamping and positioning blocks include a plurality of first clamping and positioning blocks and a plurality of second clamping and positioning blocks, the first clamping and positioning blocks are arranged along the circumference of the fixing seat, and the second clamping and positioning blocks are located on the inner side of the plurality of first clamping and positioning blocks. The iron wire arranged on the first clamping and positioning blocks forms a seat frame, and the iron wire arranged on the second clamping and positioning blocks forms a bracket connected to the seat frame.
[0014] In the above-mentioned fixture for welding the frame of the rear seat cushion of the automobile, a plurality of fixing blocks are arranged on the fixing seat, and the side wall of the fixing block has a notch extending vertically, and the notch of the notch extends to the top of the fixing block. The notch can be used to position the U-shaped iron wire. When using it, it is only necessary to insert the U-shaped iron wire into the notch, so as to facilitate the subsequent welding of the U-shaped iron wire to the iron wire frame.
[0015] In the above-mentioned fixture for welding the rear seat cushion frame of the automobile seat, a support block is arranged on the fixing seat, the support block is located beside the fixing block, and the top of the support block has a plurality of supporting grooves. The support block can support the iron wire when the iron wire frame is welded, so as to prevent the iron wire from vertically shifting during welding, and further ensure the welding quality.
[0016] Compared with the prior art, the advantages of the welding fixture for the rear seat cushion frame of the automobile seat are: the welding fixture for the rear seat cushion frame of the automobile seat has the following advantages: a clamping positioning block for positioning the iron wire is pre-arranged on the fixed seat, and the clamping positioning block can clamp and position the iron wire by relying on its own elastic tension, making it very convenient to insert and eject the iron wire. At the same time, different types of iron wires can be placed on the clamping positioning block in sequence to form the prototype of the rear seat cushion frame of the automobile seat. Then, it is only necessary to use an automatic welding machine to weld the overlapping parts of the iron wires, thereby improving the welding efficiency of the rear seat cushion frame of the automobile seat while ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 The utility model is a three-dimensional structural schematic diagram of a clamp for welding a frame of a rear seat cushion of an automobile seat.
[0018] Figure 2yes Figure 1 A partial enlarged view of point A in the middle.
[0019] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle.
[0020] Figure 4 The utility model is a schematic diagram of the structure of the clamp used for welding the frame of the rear seat cushion of the automobile seat when viewed from above.
[0021] Figure 5 The utility model is a three-dimensional structural schematic diagram of a clamping and positioning block of a clamp for welding a rear seat cushion frame of an automobile seat.
[0022] Figure 6 The utility model is a cross-sectional view of a clamping and positioning block of a clamp for welding a rear seat cushion frame of a car seat.
[0023] Figure 7 The utility model is a three-dimensional structural schematic diagram of the use state of the clamp for welding the frame of the rear seat cushion of the automobile seat.
[0024] In the figure, 1, fixed seat; 1a, clearance hole; 2, clamping positioning block; 2a, first clamping positioning block; 2b, second clamping positioning block; 3, clamping groove; 3a, straight section one; 3b, arc section; 4, expansion groove; 4a, straight section two; 4b, expansion section; 5, supporting cylinder; 5a, piston rod; 6, supporting sleeve; 7, mounting block; 8, supporting column; 9, handle; 10, fixed block; 10a, notched groove; 11, supporting seat; 11a, supporting groove. DETAILED DESCRIPTION
[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0026] Fixture for welding the rear seat cushion frame of automobile seats, refer to Figure 1-7 , including a fixing seat 1, which is in the shape of a rectangular plate, and is provided with a plurality of clearance holes 1a, and a plurality of handles 9 are symmetrically arranged on the fixing seat 1, and a plurality of clamping and positioning blocks 2 for positioning the iron wire are arranged on the fixing seat 1, and the top of the clamping and positioning block 2 has a clamping groove 3 opened downward, and the longitudinal section of the clamping groove 3 includes a straight section 1 3a and an arc section 3b connected in sequence from top to bottom, and the width of the arc section 3b is greater than the width of the straight section 1 3a, and the bottom wall of the clamping groove 3 is downwardly provided with an expansion groove 4, and the longitudinal section of the expansion groove 4 includes a straight section 2 4a and an expansion section 4b connected in sequence from top to bottom, and the width of the expansion section 4b is greater than the width of the arc section 3b, and the width of the straight section 2 4a is less than the width of the straight section 1 3a.
[0027] Specifically, refer to Figure 1 , Figure 4 and Figure 7 The clamping and positioning blocks 2 include a plurality of first clamping and positioning blocks 2a and a plurality of second clamping and positioning blocks 2b. The first clamping and positioning blocks 2a are arranged along the circumference of the fixing seat 1, and the second clamping and positioning blocks 2b are located on the inner side of the plurality of first clamping and positioning blocks 2a.
[0028] Further, refer to Figure 1 , Figure 2 , Figure 4 and Figure 7 , the fixing seat 1 is also provided with a plurality of supporting cylinders 5, the top surface of the piston rod 5a of the supporting cylinder 5 is arranged in a plane, and the piston rod 5a of the supporting cylinder 5 is arranged in a vertical direction. In this embodiment, preferably, the top of the piston rod 5a of the supporting cylinder 5 is sleeved with a supporting sleeve 6, and the top surface of the supporting sleeve 6 is flush with the top surface of the piston rod 5a; preferably, the plurality of supporting cylinders 5 are arranged at least on the same side of the fixing seat 1.
[0029] Furthermore, refer to Figure 1 , Figure 3 , Figure 4 and Figure 7 The fixing seat 1 is provided with a plurality of mounting blocks 7, and a support column 8 is horizontally penetrated on the mounting block 7, and the support column 8 can move horizontally relative to the mounting block 7; the fixing seat 1 is provided with a plurality of fixing blocks 10, and the side wall of the fixing block 10 has a notch groove 10a extending vertically, and the notch of the notch groove 10a extends to the top of the fixing seat 10; the fixing seat 1 is provided with a support block 11, and the support block 11 is located beside the fixing block 10, and the top of the support block 11 has a plurality of supporting grooves 11a.
[0030] The following describes the working principle of the fixture for welding the rear seat cushion frame of the car seat:
[0031] When in use, the fixing seat 1 is set on the automatic welding machine, and the operator first places the iron wires of different types on the clamping positioning block 2 in sequence. After being placed, the iron wires of different types are crisscrossed and form a three-dimensional skeleton. Specifically, the operator first takes a single iron wire, and then presses the single iron wire into the clamping groove 3 on the clamping positioning block 2 (the iron wire is placed horizontally). The width of the straight section 3a of the clamping groove 3 is smaller than the diameter of the iron wire. Because of the existence of the expansion groove 4, the groove wall of the straight section 3a of the clamping groove 3 can expand outward. , so that the iron wire can continue to move downward to the arc segment 3b of the clamping groove 3. At this time, because the groove wall shape of the arc segment 3b is adapted to the surface of the iron wire, and the width of the arc segment 3b is adapted to the diameter of the iron wire, the groove wall of the stretched straight segment 1 3a can be reset after the iron wire leaves. In addition, the width of the straight segment 1 3a and the width of the straight segment 2 4a are both smaller than the diameter of the iron wire. After the external force is removed, the iron wire is confined in the arc segment 3b of the clamping groove 3, and the remaining iron wires can be placed in a cycle in this way.
[0032] In addition, at the position where the support seat 11 is set, the iron wire at this position also needs to be inserted into the supporting groove 11a at the same time, so that the support seat 11 can support the iron wire; at the position where the fixing block 10 is set, the U-shaped iron wire also needs to be inserted into the notch groove 10a of the fixing block 10, so as to facilitate the subsequent welding of the U-shaped iron wire to the iron wire skeleton; at the position where the mounting block 7 is set, the operator also needs to adjust the position of the support column 8 so that the support column 8 rests against the side of the iron wire. At the same time, after the iron wire is placed, each supporting cylinder 5 is located just below the iron wire, and the supporting cylinder 5 controls the piston rod 5a to move upward to support the iron wire. Finally, the upper electrode and the lower electrode of the automatic welding machine (not shown in the figure, the make way hole 1a is to make way for the contact between the lower electrode and the iron wire) contact the upper and lower sides of the iron wire overlap at the same time, and connect the iron wire overlap together through high temperature and pressure to complete the welding at this position. After the welding is completed, all the supporting cylinders 5 simultaneously control the piston rod 5a thereon to continue to move upward, thereby pushing the corresponding iron wire out of the clamping groove 3 to facilitate the operator to take the welded iron wire skeleton.
[0033] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A clamp for welding a rear seat cushion frame of an automobile seat, comprising a fixing seat (1), characterized in that: A plurality of clamping and positioning blocks (2) for positioning the iron wire are arranged on the fixing seat (1), the top of the clamping and positioning block (2) is provided with a clamping groove (3) opened downwards, the longitudinal section of the clamping groove (3) comprises a straight section 1 (3a) and an arc section (3b) connected in sequence from top to bottom, and the width of the arc section (3b) is greater than the width of the straight section 1 (3a), the bottom wall of the clamping groove (3) is provided with an expansion groove (4) opened downwards, the longitudinal section of the expansion groove (4) comprises a straight section 2 (4a) and an expansion section (4b) connected in sequence from top to bottom, and the width of the expansion section (4b) is greater than the width of the arc section (3b), and the width of the straight section 2 (4a) is less than the width of the straight section 1 (3a).
2. The fixture for welding the rear seat cushion frame of an automobile seat according to claim 1, characterized in that: A plurality of supporting cylinders (5) are also arranged on the fixing seat (1), the top surfaces of the piston rods (5a) of the supporting cylinders (5) are arranged in a plane, and the piston rods (5a) of the supporting cylinders (5) are arranged in a vertical direction.
3. The fixture for welding the rear seat cushion frame of an automobile seat according to claim 2, characterized in that: A support sleeve (6) is sleeved on the top of the piston rod (5a) of the support cylinder (5), and the top surface of the support sleeve (6) is flush with the top surface of the piston rod (5a).
4. The fixture for welding the rear seat cushion frame of an automobile seat according to claim 2, characterized in that: A plurality of supporting cylinders (5) are arranged at least on the same side of the fixing seat (1).
5. The fixture for welding the rear seat cushion frame of an automobile seat according to claim 1, 2, 3 or 4, characterized in that: A plurality of mounting blocks (7) are arranged on the fixing seat (1), and support columns (8) are transversely passed through the mounting blocks (7), and the support columns (8) can move transversely relative to the mounting blocks (7).
6. The fixture for welding the rear seat cushion frame of an automobile seat according to claim 1, 2, 3 or 4, characterized in that: The fixing seat (1) is in the shape of a rectangular plate, and a plurality of handles (9) are symmetrically arranged on the fixing seat (1).
7. The fixture for welding the rear seat cushion frame of an automobile seat according to claim 6, characterized in that: The fixing seat (1) is provided with a plurality of clearance holes (1a).
8. The fixture for welding the rear seat cushion frame of an automobile seat according to claim 1, 2, 3 or 4, characterized in that: The clamping and positioning blocks (2) comprise a plurality of first clamping and positioning blocks (2a) and a plurality of second clamping and positioning blocks (2b), wherein the first clamping and positioning blocks (2a) are arranged along the circumference of the fixing seat (1), and the second clamping and positioning blocks (2b) are located on the inner side of the plurality of first clamping and positioning blocks (2a).
9. The fixture for welding the rear seat cushion frame of an automobile seat according to claim 1, 2, 3 or 4, characterized in that: A plurality of fixing blocks (10) are arranged on the fixing seat (1), and a notch groove (10a) extending vertically is provided on the side wall of the fixing block (10), and the notch of the notch groove (10a) extends to the top of the fixing block (10).
10. The fixture for welding the rear seat cushion frame of an automobile seat according to claim 9, characterized in that: The fixing seat (1) is provided with a support block (11), the support block (11) is located beside the fixing block (10), and the top of the support block (11) is provided with a plurality of supporting grooves (11a).