Welding and clamping tool for vehicle body heater support

Abstract

An automobile body heater support welding and clamping tool belongs to the technical field of automobile welding and comprises a base, a turnover mechanism is rotatably arranged on the base and comprises two oppositely-arranged positioning plates, a clamping mechanism is mounted on the turnover mechanism and located between the two positioning plates, the clamping mechanism comprises an oval driving wheel, and the oval driving wheel is connected with the turnover mechanism. The driving wheel is provided with a handle, the two sides of the driving wheel are each provided with an ejector rod, the ejector rods are transversely arranged, the axes of the two ejector rods coincide, the ends, away from the driving wheel, of the ejector rods are fixedly provided with pressing heads matched with the adjacent positioning plates, and each ejector rod is correspondingly connected with a reset mechanism. The device is effectively suitable for the internal space of the heater support, a welding area is not shielded, the support front piece and the support top piece which are integrally punched are manually placed between two positioned sheet metal parts during welding, positioning is convenient, the positioning precision is high, and the working efficiency and quality are effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile welding, in particular to a welding clamping tool for a support of a car body heater. Background Art

[0002] Commercial vehicles are cars used to transport people and goods. In order to ensure the stability of the heater and the sealing of the air-conditioning system, the heater supports of some commercial vehicles adopt a box-type structure. The box-type heater supports are mostly made of 3-4 sheet metal stampings welded by resistance spot welding.

[0003] At present, there is a flipping clamping and fixing device for welding automobile parts (such as publication number CN115446530A). The first clamping mechanism and the second clamping mechanism are driven by a linear drive motor. The linear drive motor drives the clamping pressure plate to quickly press the automobile weldment body, thereby realizing rapid clamping and fixing of the automobile weldment body. After the clamping and fixing are completed, the automobile weldment body can be welded. The motor drive mechanism can drive the base plate, the first clamping mechanism and the second clamping mechanism to rotate synchronously. The clamped automobile weldment body rotates synchronously with the base plate, thereby realizing rapid flipping of the automobile weldment body and improving the flexibility of the clamping and fixing device during use.

[0004] The existing flip clamping and fixing device can only clamp and position one sheet metal stamping part through the clamping pressure plate, and the remaining sheet metal stamping parts rely on manual positioning, with low positioning accuracy. In addition, due to the small internal space of the heater support, the clamping pressure plate can easily interfere with the welding equipment or block the welding area, requiring an additional process for repair welding, which affects production efficiency and is inconvenient for welding clamping of the heater support. Utility Model Content

[0005] In order to solve the technical problem that the existing flip clamping and fixing device in the above background technology is inconvenient to be used for heater support welding clamping, the utility model provides a vehicle body heater support welding clamping tool.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides a welding clamping tool for a car body heater support, comprising: a base, a flip mechanism is rotatably provided on the base, the flip mechanism comprises two positioning plates arranged oppositely, a clamping mechanism is installed on the flip mechanism, the clamping mechanism is located between the two positioning plates, the clamping mechanism comprises an elliptical driving wheel, the driving wheel is provided with a handle, a push rod is respectively provided on both sides of the driving wheel, the push rods are arranged horizontally, the axes of the two push rods coincide, a pressure head matched with an adjacent positioning plate is fixedly provided at one end of the push rod away from the driving wheel, each push rod is correspondingly connected with a reset mechanism, and the push rod is connected with the adjacent positioning plate through the pressure head The positioning plate can be used to clamp the two sheet metal parts synchronously, which occupies a small space and can be effectively applied to the internal space of the heater support without blocking the welding area. During welding, the integrally stamped support front piece and top piece can be manually placed between the two positioned sheet metal parts, which is convenient for positioning with high positioning accuracy, effectively ensuring work efficiency and quality. The setting of the flipping mechanism can facilitate the adjustment of the angle during the welding process, and the flipping angle can be quickly adjusted and positioned according to needs. The welding of the heater support is completed in one clamping, which facilitates welding and reduces labor intensity.

[0008] Preferably, the flipping mechanism includes a rotating shaft, which is laterally rotatably arranged on the base, and two positioning plates are relatively fixedly mounted on the rotating shaft. The clamping mechanism is fixedly mounted on the rotating shaft through a fixed plate, which facilitates the flipping of the clamping mechanism and the sheet metal during welding, thereby facilitating welding.

[0009] Preferably, the axis of the push rod is parallel to the axis of the rotating shaft.

[0010] Preferably, an arc-shaped limit groove is opened on the positioning plate, and a flip limit bolt is threadedly connected at a position of the base adjacent to the limit groove. The flip limit bolt passes through the limit groove and can effectively limit the flip angle through the limit groove. The use of the flip limit bolt facilitates the fixation of the positioning plate after flipping, thereby ensuring the positioning accuracy.

[0011] Preferably, one end of the push rod close to the driving wheel is provided with a slot that cooperates with the driving wheel, and can cooperate with the driving wheel through the slot to ensure effective contact between the driving wheel and the push rod.

[0012] Preferably, the reset mechanism includes a fixed seat, both ends of the push rod pass through the fixed seat, a spring is sleeved on the push rod, a cotter pin and a flat washer are installed on the push rod, the cotter pin and the flat washer are located between the spring and the driving wheel, and the push rod can have the ability of self-reset under the action of the spring, which is easy to use.

[0013] Preferably, a bushing is provided at the position where the push rod contacts the fixing seat, which effectively reduces the wear between the push rod and the fixing seat.

[0014] Preferably, the positioning plate is a convex-shaped structure, which is convenient for cooperation with the ejector rod, thereby ensuring the positioning of the sheet metal part while reducing the occupation of the welding position.

[0015] Preferably, the base comprises a bottom plate, two ends of the bottom plate are respectively fixed with a support plate, and the rotating shaft is arranged between the two support plates.

[0016] Preferably, the flip limit bolt is threadedly mounted on the support plate, so as to limit the position of the positioning plate by the flip limit bolt.

[0017] It can be seen from the above technical solutions that the advantages of the utility model are:

[0018] 1. The overall structure is simple. The ejector rod cooperates with the adjacent positioning plate through the pressure head to synchronously clamp two vertically placed sheet metal parts. It occupies a small space and is effectively suitable for the internal space of the heater support without blocking the welding area. During welding, the integrally stamped support front plate and the top plate are manually placed between the two positioned sheet metal parts, which is convenient for positioning with high positioning accuracy, effectively ensuring work efficiency and quality. The setting of the flip mechanism can facilitate the adjustment of the angle during the welding process.

[0019] 2. An arc-shaped limit groove is opened on the positioning plate. The flip limit bolt passes through the limit groove, which can effectively limit the flip angle. With the use of the flip limit bolt, it is convenient to quickly fix the position of the positioning plate after flipping, ensuring the positioning accuracy. The welding of the heater support is completed in one clamping, which facilitates welding and reduces labor intensity.

[0020] 3. The positioning plate is a convex-shaped structure, which is convenient for cooperation with the ejector rod to ensure the positioning of the sheet metal parts while reducing the occupation of the welding position. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description 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 work.

[0022] Figure 1 It is a schematic diagram of the overall structure of a welding clamping tool for a vehicle body heater support according to one or more embodiments of the utility model;

[0023] Figure 2 It is a schematic diagram of the exploded structure of the tightening mechanism and the resetting mechanism according to one or more embodiments of the utility model;

[0024] Figure 3It is a partial enlarged structural schematic diagram of the position where the base is provided with a flip limit mechanism according to one or more embodiments of the utility model;

[0025] The components represented by the reference numerals in the figure are:

[0026] 1. Base; 11. Support plate; 12. Turn-over limit bolt; 13. Bottom plate;

[0027] 2. Flipping mechanism; 21. Positioning plate; 22. Ball bearing; 23. Rotating shaft; 24. Limiting groove;

[0028] 3. Clamping mechanism; 31. Driving wheel; 32. Handle; 33. Push rod; 34. Split pin; 35. Flat washer; 36. Press head; 37. Fixing plate;

[0029] 4. Reset mechanism; 41. Fixed seat; 42. Bushing; 43. Spring. DETAILED DESCRIPTION

[0030] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0031] In a typical implementation of the present invention, Figure 1-Figure 3 As shown, a welding clamping tool for a car body heater support is proposed, comprising: a base 1, a flipping mechanism 2, a clamping mechanism 3 and a reset mechanism 4, wherein the flipping mechanism 2 comprises a rotating shaft 23 and two relatively arranged positioning plates 21; the rotating shaft 23 is laterally rotatably arranged on the base 1, and the two positioning plates 21 are relatively fixedly installed at both ends of the rotating shaft 23; the clamping mechanism 3 and the reset mechanism 4 are both fixedly installed on the rotating shaft 21, and the clamping mechanism 3 is located between the two positioning plates 21; the two ends of the clamping mechanism 3 can move laterally to cooperate with the adjacent positioning plates 21 to achieve clamping and fixing of the sheet metal.

[0032] Specifically, the base 1 includes a support plate 11, a flip limit bolt 12 and a bottom plate 13. There are two support plates 11, the two support plates 11 are arranged opposite to each other and are fixed on the bottom plate 13 by welding, bolting, etc., so as to form a U-shaped support base structure together with the bottom plate 13. There are two flip limit bolts 12, and they correspond one to one with the support plates 11, that is, each support plate 11 is threadedly connected with a flip limit bolt 12, and the support plate 11 is provided with a bolt hole threadedly connected to the flip limit bolt 12.

[0033] The flipping mechanism 2 also includes a ball bearing 22, and a ball bearing 22 is fixedly installed at both ends of the rotating shaft 23. The rotating shaft 23 is horizontally arranged between the two support plates 11, and the axis of the rotating shaft 23 is parallel to the bottom plate 13. Both ends of the rotating shaft 23 are rotatably connected to the support plate 11 through the ball bearings 22, and the ball bearings 22 are embedded in the support plate 11; the positioning plate 21 is designed according to the shape of the workpiece and can be positioned according to the shape of the workpiece. In this embodiment, the positioning plate 21 is a convex structure, and the positioning plate 21 is parallel to the plane of the support plate 11.

[0034] like Figure 3 As shown, a limiting groove 24 is provided on the positioning plate 21, and the limiting groove 24 is an arc-shaped structure. The flip limiting bolt 12 passes through the limiting groove 24, so that the flipping angle of the positioning plate 21 can be limited by the cooperation of the limiting groove 24 and the flip limiting bolt 12. The position of the positioning plate 21 can be fixed by tightening the flip limiting bolt 12, which not only facilitates flip welding, but also ensures the flip positioning accuracy.

[0035] The clamping mechanism 3 is fixedly mounted on the fixing plate 37. The clamping mechanism 3 is horizontally fixedly mounted on the rotating shaft 23 through the fixing plate 37. The fixing plate 37 and the rotating shaft 23 can be fixedly connected by a connecting plate or other structure, such as Figure 2 As shown, the clamping mechanism 3 includes a driving unit and a push rod 33. Two push rods 33 are provided. The two push rods 33 are relatively arranged on both sides of the driving unit. The axes of the two push rods 33 coincide with each other, so that the driving unit drives the two push rods 33 to perform synchronous telescopic movements, and then the push rods 33 cooperate with the adjacent positioning plates 21 to achieve clamping and fixing of the sheet metal.

[0036] Specifically, the driving unit includes a driving wheel 31 and a handle 32. The driving wheel 31 is an elliptical structure with a short side and a long side. The handle 31 is fixedly installed at the center position of the driving wheel 31. The driving wheel 31 is rotatably arranged at the center position of the fixed plate 37 through a rotating shaft, so that the driving wheel 31 can be driven to rotate around the axis by the handle 32, and then the driving wheel 31 can be used to drive the push rod 33 to move.

[0037] A pressure head 36 is fixedly provided at one end of the push rod 33 away from the driving wheel 31 , and a clamping groove is provided at one end of the push rod 33 close to the driving wheel 31 , so as to cooperate with the driving wheel 31 through the clamping groove to ensure effective contact between the driving wheel 31 and the push rod 33 .

[0038] Each push rod 33 is connected to a corresponding reset mechanism 4, so that when the short side of the driving wheel 31 is parallel to the push rod 33, the push rod 33 can reset itself under the action of the reset mechanism 4 to cancel the clamping of the sheet metal.

[0039] Specifically, the reset mechanism 4 includes a fixing seat 41, a bushing 42 and a spring 43. The fixing seat 41 is fixedly mounted on the fixing plate 37 by bolts. Both ends of the push rod 33 pass through the fixing seat 41. The bushing 42 is sleeved at the position where the push rod 33 contacts the fixing seat 41 to reduce the wear between the push rod 33 and the fixing seat 41.

[0040] A spring 43 is also sleeved on the push rod 33, and a cotter pin 34 and a flat washer 35 are installed on the push rod 33. The cotter pin 34 and the flat washer 35 are located between the spring 43 and the driving wheel 31 to compress the spring 43 when clamping the sheet metal. When the sheet metal is released, the spring 43 drives the push rod 33 to reset.

[0041] The specific working principle is:

[0042] Step 1: After the base 1 is stabilized, the handle 32 is rotated to rotate the short side of the driving wheel 31 to be parallel to the top rod 33, driving the pressure head 36 away from the corresponding positioning plate 21. At this time, the two side pieces of the heater support are placed on the positioning plate 21, and then the integrally stamped support front piece and top piece are placed in;

[0043] Step 2: Rotate the handle 32 to rotate the long side of the driving wheel 31 to be parallel to the ejector rod 33, drive the pressing head 36 to press the workpiece, and perform welding according to the process requirements;

[0044] Step 3: After the top plate is welded, the clamped workpiece is turned over 90° by the rotating shaft 23, and the turning limit bolt 12 is tightened to limit the positioning plate 21, and the front plate is welded according to the process requirements;

[0045] Step 4: After all welding is completed, loosen the flip limit bolt 12 to reset the positioning plate 21, rotate the handle 32 to rotate the short side of the driving wheel 31 to be parallel to the push rod 33. At this time, the push rod 33 is reset under the action of the spring 43 in the reset mechanism 4, driving the pressure head 36 away from the corresponding positioning plate 21, remove the workpiece, and complete the entire welding process.

[0046] The setting of the push rod 33 makes it occupy less space and can be effectively adapted to the internal space of the heater support, does not block the welding area and effectively ensures that the welding clamp passage is unobstructed. The driving wheel 31 can drive the push rod 33 to clamp the two sheet metal parts synchronously. During welding, the integrally stamped support front plate and the top plate can be manually placed between the two positioned sheet metal parts, which is convenient for positioning with high positioning accuracy, effectively ensuring work efficiency and quality. In addition, the setting of the flipping mechanism can facilitate the adjustment of the angle during the welding process, and the flipping angle can be quickly adjusted and positioned according to needs, and the welding of the heater support can be completed in one clamping, which facilitates welding and reduces labor intensity.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding clamping tool for a car body heater support, comprising: A base (1) is provided with a turning mechanism (2) which is rotatably arranged on the base (1), characterized in that the turning mechanism (2) comprises two positioning plates (21) which are arranged opposite to each other, a clamping mechanism (3) is installed on the turning mechanism (2), the clamping mechanism (3) is located between the two positioning plates (21), the clamping mechanism (3) comprises an elliptical driving wheel (31), the driving wheel (31) is provided with a handle (32), a push rod (33) is respectively arranged on both sides of the driving wheel (31), the push rod (33) is arranged horizontally, the axes of the two push rods (33) coincide with each other, a pressure head (36) which cooperates with the adjacent positioning plate (21) is fixedly arranged at one end of the push rod (33) away from the driving wheel (31), and each push rod (33) is correspondingly connected to a reset mechanism (4).

2. The welding clamping tool for the support of a vehicle body heater according to claim 1, characterized in that: The turning mechanism (2) comprises a rotating shaft (23) which is arranged on the base (1) for transverse rotation. Two positioning plates (21) are relatively fixedly mounted on the rotating shaft (23). The clamping mechanism (3) is fixedly mounted on the rotating shaft (23) via a fixing plate (37).

3. The welding clamping tool for the support of a vehicle body heater according to claim 2, characterized in that: The axis of the push rod (33) is parallel to the axis of the rotating shaft (23).

4. The welding clamping tool for a car body heater support according to claim 1, characterized in that: An arc-shaped limiting groove (24) is provided on the positioning plate (21), and a turning limiting bolt (12) is threadedly connected to a position of the base (1) adjacent to the limiting groove (24), and the turning limiting bolt (12) passes through the limiting groove (24).

5. The welding clamping tool for a car body heater support according to claim 1, characterized in that: One end of the push rod (33) close to the driving wheel (31) is provided with a slot that matches the driving wheel (31).

6. The welding clamping tool for a car body heater support according to claim 1, characterized in that: The reset mechanism (4) comprises a fixing seat (41), both ends of the push rod (33) pass through the fixing seat (41), a spring (43) is sleeved on the push rod (33), a split pin (34) and a flat washer (35) are installed on the push rod (33), and the split pin (34) and the flat washer (35) are located between the spring (43) and the driving wheel (31).

7. The welding clamping tool for the support of a vehicle body heater according to claim 6, characterized in that: A bushing (42) is sleeved at the position where the push rod (33) contacts the fixing seat (41).

8. The welding clamping tool for a car body heater support according to claim 1, characterized in that: The positioning plate (21) is a convex-shaped structure.

9. The welding clamping tool for a car body heater support according to claim 4, characterized in that: The base (1) comprises a bottom plate (13), two ends of the bottom plate (13) are respectively fixed with a support plate (11), and the rotating shaft (23) is arranged between the two support plates (11).

10. The welding clamping tool for a vehicle body heater support according to claim 9, characterized in that: The turning limit bolt (12) is threadedly mounted on the supporting plate (11).

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