Welding jig for rotating shaft support of automobile seat

Abstract

The utility model discloses an automobile seat rotating shaft support welding jig, and relates to the technical field of automobile part production equipment.The automobile seat rotating shaft support welding jig comprises a working table, a first positioning assembly, a pressing assembly, a second positioning assembly and a centering device are arranged on the working table, and the second positioning assembly comprises a reference part capable of being overturned to the position above the first positioning assembly; the centering device comprises a third positioning assembly and a fourth positioning assembly which are symmetrically arranged on the two sides of the first positioning assembly, the third positioning assembly comprises a first positioning part and a first butt joint piece, and the fourth positioning assembly comprises a second positioning part and a second butt joint piece. When the first positioning part presses the first side plate against the reference part and the second positioning part presses the second side plate against the reference part, the first butt joint part can move to be in butt joint with the second butt joint part. The automobile seat rotating shaft support welding jig can effectively solve the problem that shaft holes of two sets of side plates of a support are not concentric after being welded.

Description

Technical Field

[0001] This application relates to the technical field of automotive parts production equipment, and particularly to a welding jig for an automotive seat rotating shaft support. Background Art

[0002] The support of the automotive seat rotating shaft is formed by arc welding of various parts such as a bottom plate, side plates, stoppers, and reinforcing ribs. Among them, the support is the most important component, and the two groups of side plates of the support are provided with rotating shaft holes. After the support is welded, the rotating shaft holes of the two groups of side plates must be concentric to ensure that the rotation accuracy after the final assembly of the rotating shaft meets the requirements of the inspection jig. However, since the plate thickness of each part of the side plates and the bottom plate reaches 8 mm, and at the same time the welds are long and dense, the heat received during the arc welding process is large, and the thermal deformation is large. The independent positioning and pressing of the conventional welding jig cannot ensure the welding accuracy, and it is easy to have the shaft holes of the two side plates eccentric after welding, and cannot be corrected, resulting in batch scrapping. Utility Model Content

[0003] This application aims to at least partly solve one of the above technical problems in the prior art. To this end, the embodiments of this application provide a welding jig for an automotive seat rotating shaft support, which effectively positions the support during the welding process so as to effectively solve the problem that the shaft holes of the two groups of side plates of the support are eccentric after welding.

[0004] According to the welding jig for an automotive seat rotating shaft support provided by the embodiments of this application, it includes an operation table, on which a first positioning component, a pressing component, a second positioning component, and a centering device are arranged. The pressing component is used to press and position the support bottom plate located at the first positioning component. The second positioning component includes a reference member that can be flipped above the first positioning component, and the first side plate and the second side plate placed on the opposite sides of the positioned and defined support bottom plate are positioned by the reference member. The centering device includes a third positioning component and a fourth positioning component symmetrically arranged on both sides of the first positioning component. The third positioning component includes a first positioning portion and a first docking member, and the fourth positioning component includes a second positioning portion and a second docking member. When the first positioning portion presses the first side plate against the reference member and the second positioning portion presses the second side plate against the reference member, the first docking member adapted to the first shaft hole of the first side plate can move to dock with the second docking member adapted to the second shaft hole of the second side plate.

[0005] According to the welding jig for an automotive seat rotating shaft support described in the embodiments of this application, the third positioning component includes a first cylinder and a driving portion. The first docking member is fixed to the cylinder rod of the first cylinder, and the driving portion is used to drive the cylinder rod to perform a linear motion to adjust the distance between the first docking member and the first side plate.

[0006] According to the welding fixture for the automotive seat shaft support according to the embodiments of the present application, the driving part includes a fixing member, a first connecting rod, a second connecting rod, and a third connecting rod. The fixing member is fixedly connected to the cylinder rod. The first connecting rod is fixedly connected to the first cylinder. The end of the second connecting rod is hinged to the first connecting rod. One end of the third connecting rod is connected to the fixing member, and the other end is connected to the middle of the second connecting rod.

[0007] According to the welding fixture for the automotive seat shaft support according to the embodiments of the present application, the end of the first docking member has a tapered end, and the end of the second docking member has a groove adapted to the tapered end. When the first docking member docks with the second docking member, the tapered end is inserted into the groove.

[0008] According to the welding fixture for the automotive seat shaft support according to the embodiments of the present application, the first positioning part further includes a first positioning pin. When the first docking member is inserted into the first shaft hole, the first positioning pin is adapted to the first positioning hole of the first side plate.

[0009] According to the welding fixture for the automotive seat shaft support according to the embodiments of the present application, the second positioning part further includes a second positioning pin. When the second docking member is inserted into the second shaft hole, the second positioning pin is adapted to the second positioning hole of the second side plate.

[0010] According to the welding fixture for the automotive seat shaft support according to the embodiments of the present application, the first positioning part further includes a first cooling member for air flow release. When the first docking member docks with the second docking member, the air outlet holes of the first cooling member are aligned with the connection part between the first side plate and the support base plate.

[0011] According to the welding fixture for the automotive seat shaft support according to the embodiments of the present application, the second positioning part further includes a second cooling member for air flow release. When the first docking member docks with the second docking member, the air outlet end of the second cooling member is aligned with the connection part between the second side plate and the support base plate.

[0012] According to the welding fixture for the automotive seat shaft support according to the embodiments of the present application, the fourth positioning assembly includes a second cylinder and a driving handle. The second positioning part is fixed to the cylinder shaft of the second cylinder. The driving handle is fixedly connected to one end of the cylinder shaft, and the second positioning part is located at the other end of the cylinder shaft.

[0013] According to the welding fixture for the automotive seat shaft support according to the embodiments of the present application, the pressing assembly includes a third cylinder and a pressing block. The pressing block can be flipped above the first positioning assembly under the action of the third cylinder. The second positioning assembly includes a fourth cylinder, and the fourth cylinder is used to drive the reference member to flip.

[0014] The above-mentioned welding jig for the rotating shaft support of an automotive seat has at least the following beneficial effects: During use, first position the support base plate on the first positioning component, and then fix the support base plate to the first positioning component through the pressing component to complete the positioning and limitation of the support base plate. Then, the second positioning component operates, and the reference part flips above the support base plate. Manually place the first side plate and the second side plate on both sides of the reference part for positioning. Then, adjust the first docking part of the third positioning component to position the first shaft hole, and adjust the second docking part of the fourth positioning component to position the second shaft hole. After the above steps are completed, the third positioning component and the fourth positioning component operate simultaneously, so that the first positioning part presses the first side plate against one side of the reference part and the second positioning part presses the second side plate against the other side of the reference part. At the same time, the first docking part and the second docking part complete the docking. The relative positions of the first side plate and the second side plate are located through the reference part, and then the concentric positioning of the first shaft hole and the second shaft hole is completed through the docking of the first docking part and the second docking part. With the opposite pressing and pre-tightening of the first positioning part and the second positioning part, the first side plate and the second side plate are accurately positioned on the support base plate, enabling effective positioning of each part of the support during the welding process. When using the welding jig for the rotating shaft support of an automotive seat in this application for positioning and fixing, it can effectively solve the problem of non-concentricity of the shaft holes of the two groups of side plates of the support after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the present application in conjunction with the drawings and embodiments;

[0016] Figure 1 is a schematic structural diagram of the rotating shaft support of an automotive seat according to an embodiment of the present application;

[0017] Figure 2 is an exploded view of the rotating shaft support of an automotive seat in an embodiment of the present application;

[0018] Figure 3 is a schematic structural diagram of the welding jig for the rotating shaft support of an automotive seat in an embodiment of the present application Figure 1 ;

[0019] Figure 4 is a schematic structural diagram of the welding jig for the rotating shaft support of an automotive seat in an embodiment of the present application Figure 2 ;

[0020] Figure 5 is a schematic structural diagram of the welding jig for the rotating shaft support of an automotive seat in an embodiment of the present application Figure 3 ;

[0021] Figure 6 is a schematic structural diagram of the welding jig for the rotating shaft support of an automotive seat in an embodiment of the present application Figure 4 ;

[0022] Figure 7Schematic structure of the centering device in an embodiment of the present application Figure 1 ;

[0023] Figure 8 Schematic structure of the fourth positioning component in an embodiment of the present application;

[0024] Figure 9 Schematic structure of the third positioning component in an embodiment of the present application;

[0025] Figure 10 Schematic structure of the centering device in an embodiment of the present application Figure 2 ;

[0026] Figure 11 Schematic structure of the second positioning component in an embodiment of the present application.

[0027] Reference numerals: support 110, support base plate 111, first side plate 112, first shaft hole 1121, first positioning hole 1122, second side plate 113, second shaft hole 1131, second positioning hole 1132, rotating shaft 120, working table 200, first positioning component 210, first anti-collision seat 220, second anti-collision seat 230, pressing component 300, second positioning component 400, fourth cylinder 410, connecting piece 420, reference piece 430, convex block 431, third positioning component 500, first cylinder 510, driving part 520, fixing piece 521, first connecting rod 522, second connecting rod 523, third connecting rod 524, first positioning part 530, first positioning pin 531, first docking piece 532, conical part 533, first cooling piece 534, air outlet hole 5341, air inlet hole 5342, first buffer block 535, fourth positioning component 600, second cylinder 610, second positioning part 620, second positioning pin 621, second docking piece 622, groove 623, second buffer block 624, second cooling piece 625, air inlet end 6251, air outlet end 6252, driving handle 630. Detailed implementation manners

[0028] This part will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it should not be construed as a limitation on the protection scope of the present application.

[0029] In the description of the present application, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.

[0030] In the description of the present application, the meaning of "a number of" is one or more, the meaning of "a plurality of" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present application, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present application in combination with the specific content of the technical solution.

[0032] Refer to Figure 1 and Figure 2 Refer to

[0033] Refer to Figures 3 to 11 and

[0034] During use, first position the support base plate 111 on the first positioning component 210, and then fix the support base plate 111 to the first positioning component 210 through the pressing component 300 to complete the positioning and limitation of the support base plate 111. Then, the second positioning component 400 operates, and the reference member 430 flips above the support base plate 111. Manually place the first side plate 112 and the second side plate 113 on both sides of the reference member 430 for positioning respectively. Then, adjust the first docking member 532 of the third positioning component 500 to position the first shaft hole 1121, and adjust the second docking member 622 of the fourth positioning component 600 to position the second shaft hole 1131. After the above steps are completed, the third positioning component 500 and the fourth positioning component 600 operate simultaneously, so that the first positioning portion 530 presses the first side plate 112 against one side of the reference member 430 and the second positioning portion 620 presses the second side plate 113 against the other side of the reference member 430. At the same time, the first docking member 532 and the second docking member 622 complete the docking. The relative positions of the first side plate 112 and the second side plate 113 are positioned through the reference member 430, and the concentric positioning of the first shaft hole 1121 and the second shaft hole 1131 is completed through the docking of the first docking member 532 and the second docking member 622. With the cooperation of the opposite pressing and pre-tightening of the first positioning portion 530 and the second positioning portion 620, the first side plate 112 and the second side plate 113 are accurately positioned on the support base plate 111, enabling effective positioning of each part of the support 110 during the welding process. When using the welding jig for the vehicle seat rotating shaft support of the present application for positioning and fixing, it can effectively solve the problem of non-concentricity of the shaft holes of the two groups of side plates of the support 110 after welding.

[0035] In some embodiments, such as Figure 7 , Figure 9 and Figure 10 as shown, the third positioning component 500 includes a first cylinder 510 and a driving portion 520. The first docking member 532 is fixed to the cylinder rod of the first cylinder 510. The driving portion 520 is used to drive the cylinder rod to perform a linear motion to adjust the distance of the first docking member 532 relative to the first side plate 112. The setting of the driving portion 520 enables manual adjustment of the distance of the first positioning portion 530 relative to the first side plate 112, so as to manually adjust the first docking member 532 to be inserted into the first shaft hole 1121 to complete the accurate positioning of the first side plate 112.

[0036] The fourth positioning assembly 600 includes a second cylinder 610 and a driving handle 630. The second positioning portion 620 is fixed to the cylinder shaft of the second cylinder 610. The driving handle 630 is fixed to one end of the cylinder shaft, and the second positioning portion 620 is located at the other end of the cylinder shaft. The cylinder circumference can be manually adjusted by the driving handle 630 so that the position of the second positioning portion 620 relative to the second side plate 113 can be adjusted, so that the second docking member 622 can be manually adjusted to be inserted into the second shaft hole 1131 to complete the precise positioning of the second side plate 113.

[0037] Specifically, the workbench 200 is provided with a first support seat for fixing the first cylinder 510 and a second support seat for fixing the second cylinder 610. After the first docking member 532, the first positioning portion 530, the second docking member 622, and the second positioning portion 620 are adjusted, when it is necessary to work, first put the first side plate 112 into the corresponding position of the support base plate 111 and make the first side plate 112 close to the reference member 430, then slowly push the cylinder rod through the driving portion 520, so that the first positioning portion 530 is close to the first side plate 112 and fits it, and then put the second side plate 113 into the corresponding position of the support base plate 111 and make the second side plate 113 close to the reference member 430. The reference part 430 is then slowly pushed through the driving handle 630 to push the cylinder shaft so that the second positioning portion 620 approaches and fits toward the second side plate 113. After the above steps are completed, the first side plate 112 and the second side plate 113 are positioned. Then, high-pressure airflow is introduced into the first cylinder 510 and the second cylinder 610 so that the first positioning portion 530 can press the first side plate 112 against the reference part 430 with a certain pre-tightening force and the second positioning portion 620 can press the second side plate 113 against the reference part 430 with a certain pre-tightening force, thereby completing the positioning and fixing of the first side plate 112 and the second side plate 113, and then welding operations can be performed as required.

[0038] In the present application embodiment, Figure 9 and Figure 10 As shown, the driving part 520 includes a fixing member 521, a first connecting rod 522, a second connecting rod 523, and a third connecting rod 524. The fixing member 521 is fixedly connected to the cylinder rod, the first connecting rod 522 is fixedly connected to the first cylinder 510, the end of the second connecting rod 523 is hinged to the first connecting rod 522, one end of the third connecting rod 524 is connected to the fixing member 521, and the other end is connected to the middle of the second connecting rod 523. By moving the second connecting rod 523, the cylinder rod can be pushed to perform linear reciprocating motion in a relatively labor-saving manner.

[0039] In some examples, such as Figure 8 and Figure 9As shown, the end of the first docking member 532 has a tapered end, and the end of the second docking member 622 has a groove 623 adapted to the tapered end. When the first docking member 532 docks with the second docking member 622, the tapered end is inserted into the groove 623. Precise docking is achieved through the cooperation between the tapered portion 533 and the groove 623, ensuring that the first shaft hole 1121 and the second shaft hole 1131 can be concentric. It should be noted that in the embodiments of the present application, whether the first docking member 532 is docked with the second docking member 622 or not, the central axes of the first docking member 532 and the second docking member 622 are collinear, and both the first docking member 532 and the second docking member 622 are the main bodies.

[0040] In some embodiments, the first positioning portion 530 further includes a first positioning pin 531. When the first docking member 532 is inserted into the first shaft hole 1121, the first positioning pin 531 is adapted to the first positioning hole 1122 of the first side plate 112. The addition of the first positioning pin 531, the first docking member 532, and the reference member 430 jointly define the specific position of the first side plate 112, ensuring that the first side plate 112 is in the correct position during welding.

[0041] In some embodiments, the second positioning portion 620 further includes a second positioning pin 621. When the second docking member 622 is inserted into the second shaft hole 1131, the second positioning pin 621 is adapted to the second positioning hole 1132 of the second side plate 113. The addition of the second positioning pin 621, the second docking member 622, and the reference member 430 jointly define the specific position of the second side plate 113, ensuring that the second side plate 113 is in the correct position during welding.

[0042] As Figure 9 shown, the first positioning portion 530 further includes a first cooling member 534 for air flow release. When the first docking member 532 docks with the second docking member 622, the air outlet hole 5341 of the first cooling member 534 is aligned with the connection portion between the first side plate 112 and the support base plate 111. Among them, the first cooling member 534 has an air flow channel inside, one end of the air flow channel is set as the air outlet hole 5341, and the other end is set as the air inlet hole 5342, and an air joint is provided at the air inlet hole 5342. After welding is completed, the gas blown out by the first cooling member 534 is used to cool down the connection portion between the first side plate 112 and the support base plate 111, reduce the influence of deformation caused by high temperature, and improve the yield of finished products.

[0043] As Figure 8As shown, the second positioning portion 620 further includes a second cooling member 625 for air release. When the first docking member 532 docks with the second docking member 622, the air outlet end 6252 of the second cooling member 625 is aligned with the connection between the second side plate 113 and the support base plate 111. Among them, the first cooling member 534 has an air channel inside. One end of the air channel is set as the air outlet end 6252, and the other end is set as the air inlet end 6251. An air joint is provided at the air inlet end 6251. After welding, the gas blown out through the second cooling member 625 is used to cool down the connection between the second side plate 113 and the support base plate 111, reduce the influence of deformation caused by high temperature, and improve the yield of finished products.

[0044] In the embodiment of the present application, as Figures 2 to 6 shown and Figure 11 shown, multiple sets of pressing components 300 are provided so as to be able to completely press the support base plate 111 against the first positioning component 210. The pressing component 300 includes a third air cylinder and a pressing block. The pressing block can be flipped above the first positioning component 210 under the action of the third air cylinder. Specifically, the third air cylinder can be a lever air cylinder. Through the lever air cylinder, the pressing block can be driven to perform a flipping motion. By reasonably adjusting the position of the pressing component 300, it is possible to achieve no interference with the picking and placing.

[0045] Furthermore, the second positioning component 400 includes a fourth air cylinder 410. The fourth air cylinder 410 is used to drive the reference member 430 to flip. The fourth air cylinder 410 can also be a lever air cylinder. Through the lever air cylinder, the reference member 430 can be driven to perform a flipping motion. To ensure accurate positioning, adjustable bumps 431 are provided on both sides of the reference member 430 for positioning the first side plate 112 and the second side plate 113. The bumps 431 are connected to the reference member 430 by bolts so as to be able to perform fine adjustment according to the situation and ensure accurate positioning. As Figure 11 shown, to prevent the flipping of the reference member 430 from affecting other components, the reference member 430 and the fourth air cylinder 410 are connected by a connecting member 420.

[0046] In the embodiment of the present application, the first positioning component 210 includes a plurality of second supports, and a pin for positioning the support base plate 111 is provided on the second supports.

[0047] In some embodiments, to avoid excessive impact force of the first air cylinder 510, a first anti-collision seat 220 can be provided on the workbench 200. The first anti-collision seat 220 does not contact the first positioning component 210, and the top of the first anti-collision seat 220 is located on the movement path of the first positioning portion 530. Correspondingly, a first buffer block 535 is provided on the first positioning portion 530. The first buffer block 535 can be made of rubber. Before the first positioning portion 530 presses the first side plate 112 against the reference member 430 under the action of the first air cylinder 510, the second buffer block 624 first presses against the first anti-collision seat 220.

[0048] Among them, to avoid excessive impact force of the second cylinder 610, a second anti-collision seat 230 can be provided on the workbench 200. The second anti-collision seat 230 does not contact the first positioning component 210, and the top of the second anti-collision seat 230 is located on the movement path of the second positioning portion 620. Correspondingly, a second buffer block 624 is provided on the second positioning portion 620. The second buffer block 624 can be made of rubber. Before the second positioning portion 620 presses the second side plate 113 against the reference member 430 under the action of the second cylinder 610, the second buffer block 624 first presses against the second anti-collision seat 230.

[0049] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present application.

Claims

1. A welding fixture for a car seat shaft support, characterized in that: The cam is an assembly having a first position and a second position and a second position, and the cam is an assembly having a first ...

2. The welding fixture for the automobile seat shaft support according to claim 1 is characterized in that: The third positioning assembly includes a first cylinder and a driving part, the first docking member is fixed to the cylinder rod of the first cylinder, and the driving part is used to drive the cylinder rod to perform linear motion to adjust the distance between the first docking member and the first side plate.

3. The welding fixture for the automobile seat shaft support according to claim 2 is characterized in that: The driving part includes a fixing part, a first connecting rod, a second connecting rod, and a third connecting rod. The fixing part is fixedly connected to the cylinder rod, the first connecting rod is fixedly connected to the first cylinder, the end of the second connecting rod is hinged to the first connecting rod, one end of the third connecting rod is connected to the fixing part, and the other end is connected to the middle part of the second connecting rod.

4. The automobile seat shaft support welding jig according to claim 1, characterized in that: The end of the first docking piece has a tapered end, and the end of the second docking piece has a groove adapted to the tapered end. When the first docking piece docks with the second docking piece, the tapered end is inserted into the groove.

5. The automobile seat shaft support welding jig according to claim 1, characterized in that: The first positioning portion further includes a first positioning pin. When the first docking member is inserted into the first axial hole, the first positioning pin is matched with the first positioning hole of the first side plate.

6. The automobile seat shaft support welding jig according to claim 1, characterized in that: The second positioning portion further includes a second positioning pin. When the second docking member is inserted into the second axial hole, the second positioning pin is matched with the second positioning hole of the second side plate.

7. The automobile seat shaft support welding jig according to claim 1, characterized in that: The first positioning portion also includes a first cooling member for airflow release, and when the first docking member docks with the second docking member, the air outlet of the first cooling member is aligned with the connection between the first side plate and the support bottom plate.

8. The automobile seat shaft support welding jig according to claim 1, characterized in that: The second positioning portion also includes a second cooling member for airflow release. When the first docking member docks with the second docking member, the air outlet end of the second cooling member is aligned with the connection between the second side plate and the support bottom plate.

9. The automobile seat shaft support welding jig according to claim 1, characterized in that: The fourth positioning assembly includes a second cylinder and a driving handle, the second positioning portion is fixed to the cylinder shaft of the second cylinder, the driving handle is fixedly connected to one end of the cylinder shaft, and the second positioning portion is located at the other end of the cylinder shaft.

10. The automobile seat shaft support welding jig according to claim 1, characterized in that: The clamping assembly includes a third cylinder and a pressing block. The pressing block can be flipped to the top of the first positioning assembly under the action of the third cylinder. The second positioning assembly includes a fourth cylinder, and the fourth cylinder is used to drive the reference part to flip.

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