A welding tool for a chassis suspension bracket of an automobile

Abstract

The application discloses a welding tool for a chassis suspension support of an automobile and relates to the technical field of automobile product processing equipment. The welding tool comprises a tool frame, a curved-top supporting rod, a positioning and pressing supporting part and a traction and lifting part. The output end of a driving motor drives a driving wheel to rotate, two moving blocks are moved towards each other on a sliding shaft through two upper and lower racks, and then the clamping blocks on the two traction arms are synchronously moved towards each other to clamp the middle reinforcing rib to be welded. Meanwhile, the sliding block slides obliquely on the sliding plate, the middle reinforcing rib is abutted to the welding position of the chassis suspension body, and the chassis suspension body is further supported and turned on one side, so that the molten flux is rapidly diffused at the junction of the reinforcing rib and the chassis suspension body, and the heat stress concentration is avoided to cause the cavity collapse. The forward and reverse rotation of the output end of the driving motor drives the chassis suspension assembly to synchronously shake, so that the welding slag is rapidly discharged even if it enters the reinforcing rib.

Description

Technical Field

[0001] This invention relates to the field of automotive product processing equipment technology, specifically to a welding fixture for an automotive chassis suspension bracket. Background Technology

[0002] Currently, when welding automotive chassis components, the components need to be fixed first before welding can be carried out. Since the heights of these components to be welded vary, some components will be suspended in the air. Therefore, when supporting and fixing these components, appropriate positioning components are needed to position the components to prevent them from shaking and causing errors during welding.

[0003] However, after long-term use, the existing technology has been found to have some drawbacks, such as: First, the central reinforcing rib of the chassis suspension assembly is a hollow structure. The existing technology directly positions it on the chassis suspension body to be welded, and welds the corresponding part of the chassis suspension body on one side of the central reinforcing rib. The molten flux will be relatively concentrated on this side, causing the high-temperature flux to accumulate rapidly at the junction of the hollow reinforcing rib and the chassis suspension body, resulting in the collapse of the cavity on the reinforcing rib; Second, the junction of the central reinforcing rib and the chassis suspension body cannot be completely and tightly fitted. During the welding process, welding slag will enter the interior of the reinforcing rib, and the welding slag is not easy to remove after welding. Summary of the Invention

[0004] The purpose of this invention is to provide a welding fixture for an automobile chassis suspension bracket to solve the above-mentioned defects caused by the prior art.

[0005] A welding fixture for an automotive chassis suspension bracket includes a fixture frame, a crank top support rod, a positioning and pressing component, and a traction and lifting component. Multiple crank top support rods are symmetrically mounted on the fixture frame to support the chassis suspension assembly placed thereon. The positioning and pressing component is mounted at the upper end of the fixture frame and is used for pre-positioning the chassis suspension assembly in a partially fixed manner. The traction and lifting component is mounted in the middle of the fixture frame and is used to obliquely lift the central reinforcing rib of the chassis suspension assembly to a predetermined position.

[0006] Preferably, the positioning and support component includes a first cylinder, a top pressure plate, and a support base. The first cylinder is horizontally mounted on the tooling frame via a mounting bracket. An adjusting block is installed at the output end of the first cylinder. The support base is adjustablely mounted on the adjusting block. A second cylinder is vertically mounted on the tooling frame via a mounting bracket. The top pressure plate is mounted on the output end of the second cylinder via a perforated adjusting arm. A pressure bearing seat is also fixedly mounted on the tooling frame.

[0007] Preferably, the traction lifting component includes a drive motor, a traction arm, and a clamping block. The drive motor is mounted on a tooling frame via a mounting bracket. A drive wheel is mounted on the output end of the drive motor. A sliding shaft is mounted on the tooling frame. Two symmetrically arranged moving blocks are slidably arranged on the sliding shaft. A rack is mounted on the side end of each of the two moving blocks. Both racks mesh with the drive wheel. The traction arm has a curved structure, and one end of it is movably connected to the lower end of the moving block. The clamping block is detachably mounted on the middle of the traction arm. A slider is movably mounted on the other end of the traction arm. Fixed seat one and fixed seat two are symmetrically arranged on the tooling frame. A sliding plate is obliquely fixed on fixed seat one and fixed seat two. The slider is slidably mounted on the sliding plate.

[0008] Preferably, the pressure bearing seat is positioned directly below the top pressure plate.

[0009] Preferably, the clamping block cooperates with the central reinforcing rib of the chassis suspension assembly.

[0010] Preferably, the height of the second fixing seat is higher than that of the first fixing seat.

[0011] The advantages of this invention are:

[0012] By setting positioning and support components and traction lifting components on the tooling frame, the output ends of cylinder one and cylinder two drive the top pressure plate and support seat to abut against the side end of the chassis suspension body to perform positioning welding on the chassis suspension assembly. When welding the side with the central reinforcing rib, the output end of the drive motor drives the drive wheel to rotate, which drives the two moving blocks to move towards each other on the sliding shaft through the upper and lower racks. This causes the clamping blocks on the two traction arms to move towards each other synchronously to clamp the central reinforcing rib to be welded. At the same time, the slider slides obliquely upward on the sliding plate, which will drive the central reinforcing rib to abut against the welding position of the chassis suspension body and further push the chassis suspension body to flip up on one side, so that the molten flux can quickly spread at the junction of the reinforcing rib and the chassis suspension body, avoiding thermal stress concentration that could cause the cavity to collapse.

[0013] The forward and reverse rotation of the drive motor output will cause the chassis suspension assembly to shake synchronously, so that even if the welding slag enters the reinforcing rib, it will be quickly discharged. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the positioning and support component in this invention.

[0016] Figure 3 This is a schematic diagram of the traction lifting component in this invention.

[0017] Figure 4This is a schematic diagram showing the state of the clamping block clamping the central reinforcing rib in this invention.

[0018] Among them, 1-tooling frame, 2-curved top support rod, 3-positioning pressure support component, 4-traction lifting component, 31-cylinder one, 32-top pressure plate, 33-support seat, 34-adjusting block, 35-cylinder two, 36-drilling adjustment arm, 37-pressure bearing seat, 401-drive motor, 402-traction arm, 403-clamping block, 404-drive wheel, 405-sliding shaft, 406-moving block, 407-rack, 408-slider, 409-fixed seat one, 410-fixed seat two, 411-slide plate. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] like Figures 1 to 4 As shown, a welding fixture for an automotive chassis suspension bracket includes a fixture frame 1, a crank top support rod 2, a positioning and pressing component 3, and a traction and lifting component 4. Multiple crank top support rods 2 are symmetrically mounted on the fixture frame 1 to support the chassis suspension assembly placed thereon. The positioning and pressing component 3 is mounted on the upper end of the fixture frame 1 and is used for pre-positioning the chassis suspension assembly in a partially fixed manner. The traction and lifting component 4 is mounted in the middle of the fixture frame 1 and is used to obliquely lift the middle reinforcing rib of the chassis suspension assembly to a predetermined position.

[0021] In this embodiment, the positioning and support component 3 includes a cylinder 31, a top pressure plate 32, and a support base 33. The cylinder 31 is horizontally mounted on the tooling frame 1 via a mounting bracket. An adjusting block 34 is installed at the output end of the cylinder 31. The support base 33 is adjustablely mounted on the adjusting block 34. A cylinder 35 is vertically mounted on the tooling frame 1 via a mounting bracket. The top pressure plate 32 is mounted on the output end of the cylinder 35 via a perforated adjusting arm 36. A pressure bearing seat 37 is also fixedly mounted on the tooling frame 1.

[0022] In this embodiment, the traction lifting component 4 includes a drive motor 401, a traction arm 402, and a clamping block 403. The drive motor 401 is mounted on the tooling frame 1 via a mounting bracket. A drive wheel 404 is mounted on the output end of the drive motor 401. A sliding shaft 405 is mounted on the tooling frame 1. Two symmetrically arranged moving blocks 406 are slidably arranged on the sliding shaft 405. A rack 407 is mounted on the side end of each of the two moving blocks 406. Both racks 407 are connected to the drive wheel 403. The driving wheel 404 meshes with the traction arm 402, which has a curved structure and one end is movably connected to the lower end of the moving block 406. The clamping block 403 is detachably installed in the middle of the traction arm 402. The other end of the traction arm 402 is movably installed with a slider 408. The tooling frame 1 is symmetrically provided with a first fixed seat 409 and a second fixed seat 410. The first fixed seat 409 and the second fixed seat 410 are obliquely fixedly installed with a slide plate 411. The slider 408 is slidably disposed on the slide plate 411.

[0023] It should be noted that the two racks 407 at the top and bottom are slidably mounted on the moving blocks 406 on the other side, so that when the drive wheel 404 rotates in both directions, the two moving blocks 406 move towards each other or away from each other.

[0024] In this embodiment, the pressure bearing seat 37 is positioned directly below the top pressure plate 32.

[0025] In this embodiment, the clamping block 403 cooperates with the central reinforcing rib of the chassis suspension assembly.

[0026] Furthermore, the height of the second fixing seat 410 is higher than that of the first fixing seat 409.

[0027] Working process and principle: In the process of using this invention, the chassis suspension body to be welded is first placed on the crank top support rod 2 on the tooling frame 1 to pre-position the chassis suspension assembly in a partially fixed manner. Then, according to the model of the chassis suspension assembly to be welded, the installation position of the support seat 33 on the adjustment block 34 is adjusted. Then, cylinder 1 31 and cylinder 2 35 are started so that their respective output ends drive the top pressure plate 32 and the support seat 33 to abut against the side end of the chassis suspension body to fix and position the chassis suspension assembly, thereby welding the upper and lower end faces of the chassis suspension body and the side without the middle reinforcing rib.

[0028] When welding is performed on the side with the central reinforcing rib, the cylinder 35 is started so that its output end drives the top pressure plate 32 and the support seat 33 to separate from the chassis suspension assembly. Then the drive motor 401 is started so that its output end drives the drive wheel 404 to rotate. Through the upper and lower racks 407, the two moving blocks 406 move towards each other on the sliding shaft 405, which in turn drives the clamping blocks 403 on the two traction arms 402 to move towards each other synchronously to clamp the central reinforcing rib to be welded.

[0029] Meanwhile, as the slider 408 slides obliquely upward on the slide plate 411, it causes the central reinforcing rib to come into contact with the welding position of the chassis suspension body, and further supports the chassis suspension body to flip up on one side, so that the molten flux spreads quickly at the junction of the reinforcing rib and the chassis suspension body, avoiding the collapse of the cavity caused by the concentration of thermal stress. In addition, the forward and reverse rotation of the output end of the drive motor 401 causes the chassis suspension assembly to shake synchronously, so that even if the welding slag enters the reinforcing rib, it will be quickly discharged. In conjunction with the crank top support rod 2, the shaking amplitude of the chassis suspension assembly will be relatively stable, avoiding the welding failure caused by high amplitude vibration.

[0030] Based on the above, the present invention sets a positioning and pressing component 3 and a traction and lifting component 4 on the tooling frame 1. The output ends of cylinder 1 31 and cylinder 2 35 drive the top pressure plate 32 and the support seat 33 to abut against the side end of the chassis suspension body to perform positioning welding on the chassis suspension assembly. When welding the side with the central reinforcing rib, the output end of the drive motor 401 drives the drive wheel 404 to rotate. Through the upper and lower racks 407, the two moving blocks 406 move towards each other on the sliding shaft 405, thereby driving the clamping blocks 403 on the two traction arms 402 to move towards each other synchronously to clamp the central reinforcing rib to be welded. At the same time, the slider 408 slides obliquely upward on the sliding plate 411, which will drive the central reinforcing rib to abut against the welding position of the chassis suspension body and further push the chassis suspension body to flip up on one side, so that the molten flux spreads rapidly at the junction of the reinforcing rib and the chassis suspension body, avoiding thermal stress concentration that causes cavity collapse.

[0031] Furthermore, the forward and reverse rotation of the output end of the drive motor 401 will cause the chassis suspension assembly to shake synchronously, so that even if the welding slag enters the reinforcing rib, it will be quickly discharged.

[0032] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A welding fixture for an automobile chassis suspension bracket, characterized in that, The assembly includes a tooling frame (1), a top support rod (2), a positioning support component (3), and a traction lifting component (4). Multiple top support rods (2) are symmetrically installed on the tooling frame (1) to support the chassis suspension assembly placed thereon. The positioning support component (3) is installed at the upper end of the tooling frame (1) and is used to pre-position the chassis suspension assembly in a partially fixed manner. The traction lifting component (4) is installed in the middle of the tooling frame (1) and is used to obliquely lift the middle reinforcing rib of the chassis suspension assembly to a predetermined position. The traction lifting component (4) includes a drive motor (401), a traction arm (402), and a clamping block (403). The drive motor (401) is mounted on the tooling frame (1) via a mounting bracket. A drive wheel (404) is mounted on the output end of the drive motor (401). A sliding shaft (405) is mounted on the tooling frame (1). Two symmetrically arranged moving blocks (406) are slidably arranged on the sliding shaft (405). A rack (407) is mounted on the side end of each of the two moving blocks (406). Both racks (407) are connected to the drive wheel (403). 404) meshing, the traction arm (402) is a curved structure and one end of it is movably connected to the lower end of the moving block (406), the clamping block (403) is detachably installed in the middle of the traction arm (402), and the other end of the traction arm (402) is movably installed with a slider (408). The tooling frame (1) is symmetrically provided with a first fixed seat (409) and a second fixed seat (410). The first fixed seat (409) and the second fixed seat (410) are obliquely fixedly installed with a slide plate (411), and the slider (408) is slidably installed on the slide plate (411).

2. The welding fixture for an automobile chassis suspension bracket according to claim 1, characterized in that: The positioning support component (3) includes a cylinder (31), a top pressure plate (32), and a support base (33). The cylinder (31) is horizontally mounted on the tooling frame (1) via a mounting bracket. An adjusting block (34) is installed at the output end of the cylinder (31). The support base (33) is adjustablely mounted on the adjusting block (34). A cylinder (35) is vertically mounted on the tooling frame (1) via a mounting bracket. The top pressure plate (32) is mounted on the output end of the cylinder (35) via a perforated adjusting arm (36). A pressure bearing seat (37) is also fixedly mounted on the tooling frame (1).

3. The welding fixture for an automobile chassis suspension bracket according to claim 2, characterized in that: The pressure seat (37) is located directly below the pressure plate (32).

4. The welding fixture for an automobile chassis suspension bracket according to claim 1, characterized in that: The clamping block (403) cooperates with the central reinforcing rib of the chassis suspension assembly.

5. The welding fixture for an automobile chassis suspension bracket according to claim 1, characterized in that: The height of the second fixed seat (410) is higher than that of the first fixed seat (409).

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