Fixing clamp for welding automobile doorsill beam

Abstract

The utility model belongs to the technical field of automobile welding, and particularly relates to a fixing clamp for welding an automobile doorsill beam, which comprises a support plate, and a clamping device is arranged above the support plate. According to the fixing clamp for automobile doorsill beam welding, by arranging the clamping units, left and right telescopic pieces are started to push connecting plates to move till the inner walls of the left and right connecting plates abut against the left and right ends of an automobile doorsill, then a first connecting rod is rotated, and a connecting block is in threaded connection with the first connecting rod; the two connecting blocks drive the bolts to move to proper positions along the sliding grooves, then the bolts are rotated to drive the pressing plates to move downwards to abut against the upper surface of the automobile doorsill, and therefore the automobile doorsill is fixed, and the length between the left connecting plate and the right connecting plate and the distance between the front pressing plate and the rear pressing plate can be adjusted; therefore, the automobile thresholds with different sizes are fixed, and the problems that in the background technology, the automobile thresholds with different sizes cannot be clamped and fixed in the using process, and use is limited are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile welding, in particular to a fixing fixture for welding an automobile door sill beam. Background Art

[0002] On the automobile welding line, the actual welding operation accounts for only 30% to 40%, while 60% to 70% is auxiliary and clamping work. Since clamping is done on the welding fixture, the fixture plays an important role in the entire welding process.

[0003] During the clamping process, the traditional clamp structure fixes the car door sill beam through the positioning pin, and then presses it through the handle so that the door sill beam is pressed by the upper and lower pressure blocks. This method is not conducive to welding work and the positioning accuracy is not enough.

[0004] For example, a welding fixture for automobile threshold beams disclosed in Chinese patent CN205437611U, when clamping, two first clamping mechanisms are used to position and clamp the vertical beams at one end and the middle vertical beam of the threshold beam respectively, the second and third clamping mechanisms are used to position and clamp the upper cross beam of the threshold beam, and the fourth clamping mechanism is used to clamp the vertical beam at the other end of the threshold beam, so that the threshold beam is completely positioned and clamped, the positioning accuracy is improved, and the welding work is convenient. The utility model not only has high positioning accuracy, but also adopts a clamping cylinder as a driving power, which is easy to operate, thereby improving work efficiency.

[0005] However, since the door sills of different cars have different sizes and lengths, the device cannot clamp and fix the door sills of cars of different sizes during use, and its use is relatively limited.

[0006] For this reason we urgently need to provide a kind of automobile door sill beam welding fixing fixture. Utility Model Content

[0007] The utility model aims to provide a fixing fixture for welding automobile door sill beams, so as to solve the problem that automobile door sills of different sizes cannot be clamped and fixed during use, and the use is relatively limited.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a fixing fixture for welding a vehicle door sill beam, comprising a support plate, and a clamping device is arranged above the support plate.

[0009] The clamping device comprises a fixing unit and an adjusting unit, wherein the fixing unit is arranged above the supporting plate, and the adjusting unit is arranged below the supporting plate.

[0010] The fixing unit includes a telescopic part, a connecting plate, a supporting block, a connecting rod 1, a connecting block, a bolt and a pressure plate. The telescopic part is fixedly installed on the left and right sides of the top of the supporting plate, the connecting plate is fixedly installed on the output end of the telescopic part, the supporting block is fixedly installed on the front and rear ends of the top of the connecting plate, the connecting rod 1 is rotatably installed inside the front and rear connecting plates, one end of the connecting block is installed on the front and rear ends of the outer side of the connecting rod 1, the bolt is threadedly connected to the inside of the connecting block, and the pressure plate is fixedly installed at the bottom of the bolt.

[0011] Preferably, the adjusting unit includes a base, a telescopic rod, a fixed block, a motor, a second connecting rod, a movable block, a connecting piece and a fixed frame, the base is arranged below the support plate, the telescopic rod is fixedly installed around the top of the base, the fixed blocks are fixedly installed on the left and right sides of the top of the base, the motor is fixedly installed on the left side of the left fixed block, one end of the second connecting rod is fixedly installed on the output end of the motor, the movable block is installed on the left and right ends of the outer side of the second connecting rod, one end of the connecting piece is rotatably connected to the outer side of the movable block, and the fixed frame is fixedly installed on the bottom of the support plate.

[0012] Preferably, the front and rear ends of the outer surface of the connecting rod 1 are provided with external threads in opposite directions, and one end of the connecting block is threadedly connected to the outside of the connecting rod 1. By rotating the connecting rod 1, the connecting rod 1 is threadedly connected to the connecting block, driving the front and rear bolts to move, thereby adjusting the distance between the two pressure plates, thereby facilitating the fixing of car door sills of different sizes.

[0013] Preferably, a slide groove having a diameter equal to that of the bolt is provided on the upper surface of the connecting plate, so that the bolt can be easily moved through the slide groove.

[0014] Preferably, the top of the telescopic rod is fixedly connected to the bottom of the support plate, and the support plate is supported by the telescopic rod, while the support plate is moved up and down along the telescopic rod.

[0015] Preferably, the left and right ends of the outer surface of the second connecting rod are provided with external threads in opposite directions, and the left and right moving blocks are threadedly connected to the outside of the second connecting rod, and the end of the connecting piece away from the moving block is rotatably connected to the lower end of the fixed frame. The second connecting rod is threadedly connected to the left and right moving blocks, so that the moving block pushes the connecting piece to rotate around the moving block and the fixed frame while moving left and right, and at the same time pushes the support plate to move up and down, thereby realizing height adjustment of the support plate, which is convenient for use by staff of different heights.

[0016] Preferably, a rubber pad is fixedly installed at the bottom of the pressing plate, so as to prevent the surface of the car threshold from being scratched when the pressing plate is pressed against the car threshold, thereby affecting the welding quality of the car threshold.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The fixing fixture for welding the automobile threshold beam is provided with a clamping unit, and the left and right telescopic parts are started to push the connecting plate to move until the inner walls of the left and right connecting plates abut against the left and right ends of the automobile threshold, and then the connecting rod 1 is rotated. Under the threaded connection between the connecting block and the connecting rod 1, the two connecting blocks drive the bolts to move along the slide groove to a suitable position, and then the bolts are rotated to drive the pressure plate to move downward and abut against the upper surface of the automobile threshold, so as to fix the automobile threshold, and the length between the left and right connecting plates and the distance between the front and rear pressure plates can be adjusted, so as to realize the fixing of automobile thresholds of different sizes, which solves the problem that automobile thresholds of different sizes cannot be clamped and fixed during use and the use is relatively limited as proposed in the background technology.

[0019] 2. The fixing fixture for welding the automobile door sill beam is provided with an adjustment unit, and the motor is started to drive the second connecting rod to rotate. The second connecting rod is threadedly connected to the left and right moving blocks, so that the moving blocks push the connecting parts to rotate around the moving blocks and the fixing frame while moving left and right, and at the same time push the support plate to move up and down, so as to realize the height adjustment of the support plate, which is convenient for use by workers of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the clamping unit of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the regulating unit of the utility model;

[0023] Figure 4 This is a disassembled view of the connection between the connector and the fixing frame of the utility model.

[0024] In the figure: 1, support plate; 201, telescopic member; 202, connecting plate; 203, support block; 204, connecting rod 1; 205, connecting block; 206, bolt; 207, pressure plate; 301, base; 302, telescopic rod; 303, fixed block; 304, motor; 305, connecting rod 2; 306, moving block; 307, connecting member; 308, fixed frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A fixing fixture for welding a door sill beam of an automobile comprises a supporting plate 1, and a clamping device is arranged above the supporting plate 1.

[0029] The clamping device comprises a fixing unit and an adjusting unit. The fixing unit is arranged above the supporting plate 1 , and the adjusting unit is arranged below the supporting plate 1 .

[0030] The fixing unit includes a telescopic member 201, a connecting plate 202, a support block 203, a connecting rod 204, a connecting block 205, a bolt 206 and a pressure plate 207. The telescopic member 201 is fixedly installed on the left and right sides of the top of the supporting plate 1. The telescopic member 201 includes a hydraulic cylinder and a hydraulic rod. The hydraulic cylinder is fixedly installed on the left and right sides of the top of the supporting plate 1. The hydraulic rod is installed at the output end of the hydraulic cylinder. The connecting plate 202 is fixedly installed at the output end of the telescopic member 201. A slide groove equal to the diameter of the bolt 206 is provided on the upper surface of the connecting plate 202. The slide groove facilitates the movement of the bolt 206. The supporting block 203 is fixedly installed at the front and rear ends of the top of the connecting plate 202. The connecting rod 204 is rotatably installed at the front and rear connecting rods. Inside the plate 202, the front and rear ends of the outer surface of the connecting rod 204 are provided with external threads in opposite directions, and one end of the connecting block 205 is threadedly connected to the outside of the connecting rod 204. By rotating the connecting rod 204, the connecting rod 204 is threadedly connected to the connecting block 205, which drives the front and rear bolts 206 to move, and adjusts the distance between the two pressure plates 207, so as to facilitate the fixation of car door sills of different sizes. One end of the connecting block 205 is installed at the front and rear ends of the outer side of the connecting rod 204, the bolt 206 is threadedly connected to the inside of the connecting block 205, and the pressure plate 207 is fixedly installed at the bottom of the bolt 206, and the pressure plate 207 abuts against the upper surface of the car door sill, thereby fixing the car door sill.

[0031] Embodiment 2:

[0032] On the basis of the first embodiment: the adjustment unit includes a base 301, a telescopic rod 302, a fixed block 303, a motor 304, a connecting rod 305, a moving block 306, a connecting piece 307 and a fixing frame 308, the base 301 is arranged below the support plate 1, the telescopic rod 302 is fixedly installed around the top of the base 301, the top of the telescopic rod 302 is fixedly connected to the bottom of the support plate 1, and the support plate 1 is supported by the telescopic rod 302, and the support plate 1 is moved up and down along the telescopic rod 302, the fixed block 303 is fixedly installed on the left and right sides of the top of the base 301, the motor 304 is fixedly installed on the left side of the left fixed block 303, one end of the connecting rod 305 is fixedly installed on the output end of the motor 304, and the appearance of the connecting rod 305 External threads in opposite directions are provided on the left and right ends of the surface, and the left and right moving blocks 306 are threadedly connected to the outside of the second connecting rod 305, and the end of the connecting piece 307 away from the moving block 306 is rotatably connected to the lower end of the fixed frame 308. The second connecting rod 305 is threadedly connected to the left and right moving blocks 306, so that the moving block 306 pushes the connecting piece 307 to rotate around the moving block 306 and the fixed frame 308 while moving left and right, and at the same time pushes the support plate 1 to move up and down, so as to realize the height adjustment of the support plate 1, which is convenient for staff of different heights to use. The moving blocks 306 are installed at the left and right ends of the outside of the second connecting rod 305, and one end of the connecting piece 307 is rotatably connected to the outside of the moving block 306, and the fixed frame 308 is fixedly installed at the bottom of the support plate 1.

[0033] Embodiment three:

[0034] On the basis of the first embodiment: a rubber pad is fixedly installed at the bottom of the pressing plate 207, so as to prevent the pressing plate 207 from pressing the car door sill tightly and scratching the surface of the car door sill, thereby affecting the welding quality of the car door sill.

[0035] When in use, the car threshold to be welded is placed on the top of the support plate 1, and then the left and right telescopic parts 201 are started to push the connecting plate 202 to move until the inner walls of the left and right connecting plates 202 abut against the left and right ends of the car threshold, and then the connecting rod 1 204 is rotated, and the two connecting blocks 205 are threadedly connected to the connecting rod 1 204, so that the two connecting blocks 205 drive the bolts 206 to move along the slide groove to a suitable position, and then the bolts 206 are rotated to drive the pressure plate 207 to move downward and abut against the upper surface of the car threshold, thereby fixing the car threshold. When the height of the support plate 1 needs to be adjusted, the motor 304 is started to drive the connecting rod 2 305 to rotate, and the connecting rod 2 305 is threadedly connected to the left and right moving blocks 306, so that the moving block 306 pushes the connecting member 307 to rotate around the moving block 306 and the fixing frame 308 while moving left and right, and at the same time pushes the support plate 1 to move up and down, so as to achieve the height adjustment of the support plate 1.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A fixing fixture for welding a vehicle sill beam, comprising a support plate (1), characterized in that: A clamping device is provided above the support plate (1); The clamping device comprises a fixing unit and an adjusting unit, wherein the fixing unit is arranged above the support plate (1) and the adjusting unit is arranged below the support plate (1); The fixing unit comprises a telescopic member (201), a connecting plate (202), a supporting block (203), a connecting rod (204), a connecting block (205), a bolt (206) and a pressing plate (207); the telescopic member (201) is fixedly mounted on the left and right sides of the top of the supporting plate (1); the connecting plate (202) is fixedly mounted on the output end of the telescopic member (201); the supporting block (203) is fixedly mounted on the front and rear ends of the top of the connecting plate (202); the connecting rod (204) is rotatably mounted inside the front and rear connecting plates (202); one end of the connecting block (205) is mounted on the front and rear ends of the outer side of the connecting rod (204); the bolt (206) is threadedly connected to the inside of the connecting block (205); and the pressing plate (207) is fixedly mounted on the bottom of the bolt (206).

2. The fixing fixture for welding a vehicle sill beam according to claim 1, characterized in that: The adjustment unit comprises a base (301), a telescopic rod (302), a fixed block (303), a motor (304), a second connecting rod (305), a moving block (306), a connecting piece (307) and a fixing frame (308); the base (301) is arranged below the support plate (1); the telescopic rod (302) is fixedly mounted on the four sides of the top of the base (301); the fixed block (303) is fixedly mounted on the left and right sides of the top of the base (301); the motor (304) is fixedly mounted on the left side of the left fixed block (303); one end of the second connecting rod (305) is fixedly mounted on the output end of the motor (304); the moving block (306) is mounted on the left and right ends of the outer side of the second connecting rod (305); one end of the connecting piece (307) is rotatably connected to the outer side of the moving block (306); and the fixing frame (308) is fixedly mounted on the bottom of the support plate (1).

3. The fixing fixture for welding a vehicle sill beam according to claim 1, characterized in that: The front and rear ends of the outer surface of the connecting rod 1 (204) are provided with external threads in opposite directions, and one end of the connecting block (205) is threadedly connected to the outer side of the connecting rod 1 (204).

4. The fixing fixture for welding a vehicle sill beam according to claim 1, characterized in that: The upper surface of the connecting plate (202) is provided with a sliding groove having a diameter equal to that of the bolt (206).

5. The fixing fixture for welding a vehicle sill beam according to claim 2, characterized in that: The top of the telescopic rod (302) is fixedly connected to the bottom of the support plate (1).

6. The fixing fixture for welding a vehicle sill beam according to claim 2, characterized in that: The left and right ends of the outer surface of the second connecting rod (305) are provided with external threads in opposite directions, and the left and right moving blocks (306) are threadedly connected to the outside of the second connecting rod (305), and the end of the connecting piece (307) away from the moving block (306) is rotatably connected to the lower end of the fixing frame (308).

7. The fixing fixture for welding a vehicle sill beam according to claim 1, characterized in that: A rubber pad is fixedly mounted on the bottom of the pressing plate (207).

Images