Replaceable chuck of automobile welding fixture

Abstract

The utility model relates to a replaceable chuck of an automobile welding fixture, which belongs to the technical field of automobile welding fixtures and comprises a base and a fixing plate, and supporting plates are fixed on the left side and the right side of the upper surface of the fixing plate. According to the replaceable chuck of the automobile welding clamp, first motors on the left side and the right side are started at the same time to drive threaded cylinders on the left side and the right side to rotate at the same time, and threaded rods in threaded connection with the interiors of the threaded cylinders on the left side and the right side drive connecting plates on the left side and the right side to synchronously move in opposite directions on the upper surface of a fixing plate through the limiting effect of telescopic rods on the left side and the right side; a second motor on the right side is started to drive the clamped and fixed automobile part to adjust the welding angle, and fixing bolts on fixing cylinders on the left side and the right side are twisted to detach the clamping heads on the left side and the right side from the interiors of the fixing cylinders on the left side and the right side; therefore, the chuck can be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile welding fixtures, in particular to a replaceable clamping head of an automobile welding fixture. Background Art

[0002] Welding production in automobile manufacturing is characterized by large batches, fast production speeds, and high requirements for assembly and welding precision of the parts to be welded. During the welding process of automobile parts, fixtures are usually required to fix and clamp the automobile parts.

[0003] For example, Chinese patent CN216706534U discloses an automobile welding fixture, including a base, four support plates are arranged in a matrix on the top left side of the base, a workbench is arranged on the top of the four support plates, a distance adjustment mechanism is arranged on the workbench, a support rod is arranged on the top right side of the base, an angle adjustment mechanism is arranged on the top of the support rod, and the opposite ends of the distance adjustment mechanism and the angle adjustment mechanism are movably connected with chucks, which facilitates the adjustment of the distance between the two chucks, facilitates the processing of automobile parts of different models, can adjust the welding angle of automobile parts, facilitates the welding of automobile parts at different positions, and improves the practicality and flexibility of the device.

[0004] Although the above patent improves the practicality and flexibility of the device, the fixing method of the left and right chucks in the patent is not disclosed, which makes it inconvenient to replace the chuck of the automobile welding fixture, reducing the practicality. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a replaceable chuck for an automobile welding fixture, which has the advantages of being able to replace the chuck, etc., and solves the problem that the fixing method of the left and right chucks is not disclosed, which makes it inconvenient to replace the chuck of the automobile welding fixture and reduces the practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a replaceable chuck of an automobile welding fixture, comprising a base and a fixing plate, support plates are fixed on both the left and right sides of the upper surface of the fixing plate, telescopic rods are fixed on both the front and rear sides of the opposite side of the left and right support plates, connecting plates are fixed on the opposite side of the left and right telescopic rods, connecting mechanisms are provided on the opposite sides of the left and right connecting plates, and an adjustment mechanism is provided on the upper surface of the base;

[0007] The connecting mechanism includes a fixing cylinder rotatably connected to the opposite sides of the left and right connecting plates through a bearing, a clamping head is slidably inserted into the interior of the fixing cylinder, a first threaded opening is provided on the upper and lower surfaces of the fixing cylinder, a second threaded opening is provided on the upper surface of the clamping head, and the internal threads of the first and second threaded openings are connected with fixing bolts, a second motor is fixed to the right side of the right connecting plate, and the outer side of the output shaft of the second motor passes through the right connecting plate and is fixedly connected to the right side of the right fixing cylinder.

[0008] Furthermore, a first motor is fixed on the opposite side of the left and right support plates, and the upper sides of the opposite sides of the left and right support plates are rotatably connected to a threaded tube through a bearing, and the internal threads of the threaded tube are connected to a threaded rod, and the outer sides of the output shafts of the first motors on the left and right sides penetrate the left and right support plates and are fixedly connected to the opposite sides of the left and right threaded tubes, and the opposite sides of the left and right threaded rods are fixedly connected to the opposite sides of the left and right connecting plates.

[0009] Furthermore, the lower surface of the connecting plate is in contact with the upper surface of the fixing plate.

[0010] Furthermore, the telescopic rod comprises a first movable rod, and a second movable rod is slidably connected inside the first movable rod.

[0011] Furthermore, the adjustment mechanism includes a slide groove opened on the upper surface of the base, a slide rod is fixed inside the slide groove, a moving block is slidably connected to the outer side of the slide rod, and the moving block is slidably connected to the inside of the slide groove.

[0012] Furthermore, the upper surface of the moving block is fixedly connected to the lower surface of the fixed plate, the lower surface of the fixed plate is fitted with the upper surface of the base, an electric push rod is fixed to the left side of the upper surface of the base, and the outer side of the electric push rod output shaft is fixedly connected to the left side of the fixed plate.

[0013] Furthermore, the moving block moves linearly left and right inside the slide slot.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The replaceable chuck of the automobile welding fixture drives the left and right threaded barrels to rotate simultaneously by starting the first motors on the left and right sides at the same time. The threaded rods threadedly connected inside the left and right threaded barrels drive the left and right connecting plates to move synchronously in relative directions on the upper surface of the fixed plate through the limiting effect of the left and right telescopic rods, and drive the left and right clamping heads to clamp and fix automobile parts. By starting the second motor on the right side, the clamped automobile parts can be driven to adjust the welding angle. By twisting the fixing bolts on the left and right fixing barrels, the left and right clamping heads can be removed from the inside of the left and right fixing barrels, and then the chuck can be replaced.

[0016] 2. The replaceable chuck of the automobile welding fixture can drive the moving block to move left and right on the outside of the slide bar by starting the electric push rod, and then drive the clamped automobile parts to adjust the welding position on the left and right sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the support plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the adjustment mechanism of the utility model.

[0021] In the figure: 1 base, 2 fixed plate, 3 support plate, 4 telescopic rod, 5 connecting plate, 6 connecting mechanism, 601 fixed cylinder, 602 clamping head, 603 first threaded opening, 604 second threaded opening, 605 fixing bolt, 606 second motor, 7 adjusting mechanism, 701 slide groove, 702 slide rod, 703 moving block, 704 electric push rod, 8 first motor, 9 threaded cylinder, 10 threaded rod. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-2In this embodiment, a replaceable chuck of an automobile welding fixture includes a base 1 and a fixed plate 2. Support plates 3 are fixed on the left and right sides of the upper surface of the fixed plate 2. Telescopic rods 4 are fixed on the front and rear sides of the opposite sides of the left and right support plates 3. Connecting plates 5 are fixed on the opposite sides of the left and right telescopic rods 4. Connecting mechanisms 6 are provided on the opposite sides of the left and right connecting plates 5. The connecting mechanisms 6 can replace the chuck. An adjusting mechanism 7 is provided on the upper surface of the base 1. The adjusting mechanism 7 can adjust the welding positions of the left and right sides.

[0024] In this embodiment, the first motor 8 is fixed on the opposite side of the left and right support plates 3, and the upper side of the opposite side of the left and right support plates 3 is rotatably connected with a threaded tube 9 through a bearing, and the internal thread of the threaded tube 9 is connected with a threaded rod 10, and the outer sides of the output shafts of the left and right first motors 8 pass through the left and right support plates 3 and are fixedly connected to the opposite side of the left and right threaded tube 9, and the opposite sides of the left and right threaded rods 10 are fixedly connected to the opposite side of the left and right connecting plates 5, and the telescopic rod 4 includes a first movable rod, and the internal sliding connection of the first movable rod is the second movable rod.

[0025] It should be noted that starting the first motors 8 on the left and right sides at the same time drives the threaded tubes 9 on the left and right sides to rotate simultaneously, and the threaded rods 10 threadedly connected to the inside of the left and right threaded tubes 9 drive the left and right connecting plates 5 to move synchronously in relative directions on the upper surface of the fixed plate 2 through the limiting effect of the left and right telescopic rods 4.

[0026] See also Figure 3 In order to replace the chuck, in this embodiment, the connecting mechanism 6 includes a fixed cylinder 601 rotatably connected to the opposite side of the left and right connecting plates 5 through a bearing, and a clamping head 602 is slidably inserted inside the fixed cylinder 601. The upper surface and the lower surface of the fixed cylinder 601 are both provided with a first threaded opening 603, and the upper surface of the clamping head 602 is provided with a second threaded opening 604. The internal threads of the first threaded opening 603 and the second threaded opening 604 are connected with a fixing bolt 605. A second motor 606 is fixed to the right side of the right connecting plate 5, and the outer side of the output shaft of the second motor 606 passes through the right connecting plate 5 and is fixedly connected to the right side of the right fixed cylinder 601. The left and right clamping heads 602 move synchronously in relative directions to clamp and fix the automobile parts, and then welding can be performed. By starting the second motor 606 on the right, the clamped and fixed automobile parts can be driven to adjust the welding angle.

[0027] In this embodiment, the lower surface of the connecting plate 5 is in contact with the upper surface of the fixing plate 2 , and the outer side of the output shaft of the second motor 606 passes through the right connecting plate 5 and is fixedly connected to the right side of the right fixing tube 601 .

[0028] It should be noted that the left and right clamping heads 602 can be removed from the inside of the left and right fixing tubes 601 by twisting the fixing bolts 605 on the left and right fixing tubes 601, and then the clamping heads can be replaced.

[0029] See also Figure 4 In order to adjust the welding positions on the left and right sides, in this embodiment, the adjustment mechanism 7 includes a slide groove 701 opened on the upper surface of the base 1, a slide rod 702 is fixed inside the slide groove 701, and a moving block 703 is slidably connected to the outer side of the slide rod 702, and the moving block 703 is slidably connected to the inside of the slide groove 701.

[0030] In this embodiment, the upper surface of the moving block 703 is fixedly connected to the lower surface of the fixed plate 2, the lower surface of the fixed plate 2 is in contact with the upper surface of the base 1, and an electric push rod 704 is fixed to the left side of the upper surface of the base 1. The outer side of the output shaft of the electric push rod 704 is fixedly connected to the left side of the fixed plate 2. The moving block 703 moves linearly left and right inside the slide groove 701. By starting the electric push rod 704, the output shaft of the electric push rod 704 drives the moving block 703 to move left and right on the outer side of the slide rod 702.

[0031] It should be noted that the clamped and fixed automobile parts can be driven to adjust the welding positions on the left and right sides to improve practicality.

[0032] The working principle of the above embodiment is:

[0033] (1) By simultaneously starting the first motors 8 on the left and right sides, the threaded cylinders 9 on the left and right sides are driven to rotate simultaneously. The threaded rods 10 threadedly connected to the inside of the threaded cylinders 9 on the left and right sides drive the left and right connecting plates 5 to move synchronously in relative directions on the upper surface of the fixed plate 2 through the limiting effect of the left and right telescopic rods 4, and drive the left and right clamping heads 602 to move synchronously in relative directions, so that the automobile parts can be clamped and fixed, and then welding can be performed. By starting the second motor 606 on the right side, the clamped automobile parts can be driven to adjust the welding angle. By twisting the fixing bolts 605 on the left and right fixing cylinders 601, the left and right clamping heads 602 can be removed from the inside of the left and right fixing cylinders 601, and then the clamping heads can be replaced.

[0034] (2) By starting the electric push rod 704, the output shaft of the electric push rod 704 drives the moving block 703 to move left and right outside the sliding rod 702, and then drives the clamped automobile parts to adjust the welding positions on the left and right sides, thereby improving practicality.

[0035] 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 sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A replaceable chuck for an automobile welding fixture, comprising a base (1) and a fixing plate (2), characterized in that: Support plates (3) are fixed on both left and right sides of the upper surface of the fixing plate (2); telescopic rods (4) are fixed on both front and rear sides of the opposite sides of the left and right support plates (3); connecting plates (5) are fixed on the opposite sides of the left and right telescopic rods (4); connecting mechanisms (6) are provided on the opposite sides of the left and right connecting plates (5); and an adjustment mechanism (7) is provided on the upper surface of the base (1); The connecting mechanism (6) comprises a fixing cylinder (601) rotatably connected to the opposite sides of the left and right connecting plates (5) via a bearing, a clamping head (602) is slidably inserted inside the fixing cylinder (601), a first threaded opening (603) is provided on the upper surface and the lower surface of the fixing cylinder (601), a second threaded opening (604) is provided on the upper surface of the clamping head (602), a fixing bolt (605) is threadedly connected to the inner sides of the first threaded opening (603) and the second threaded opening (604), and a second motor (606) is fixed to the right side of the right connecting plate (5).

2. The replaceable chuck of an automobile welding fixture according to claim 1, characterized in that: A first motor (8) is fixed on the opposite side of the left and right support plates (3); a threaded cylinder (9) is rotatably connected to the upper side of the opposite side of the left and right support plates (3) via a bearing; a threaded rod (10) is connected to the inner thread of the threaded cylinder (9); the outer sides of the output shafts of the first motors (8) on the left and right sides penetrate the left and right support plates (3) and are fixedly connected to the opposite side of the left and right threaded cylinders (9); and the opposite side of the threaded rods (10) on the left and right sides are fixedly connected to the opposite side of the left and right connecting plates (5).

3. The replaceable chuck of an automobile welding fixture according to claim 1, characterized in that: The lower surface of the connecting plate (5) is in contact with the upper surface of the fixing plate (2), and the outer side of the output shaft of the second motor (606) passes through the right connecting plate (5) and is fixedly connected to the right side of the right fixing cylinder (601).

4. The replaceable chuck of an automobile welding fixture according to claim 1, characterized in that: The telescopic rod (4) comprises a first movable rod, the interior of which is slidably connected to a second movable rod.

5. The replaceable chuck of an automobile welding fixture according to claim 1, characterized in that: The adjustment mechanism (7) comprises a slide groove (701) provided on the upper surface of the base (1); a slide rod (702) is fixed inside the slide groove (701); a moving block (703) is slidably connected to the outer side of the slide rod (702); and the moving block (703) is slidably connected to the inside of the slide groove (701).

6. The replaceable chuck of an automobile welding fixture according to claim 5, characterized in that: The upper surface of the moving block (703) is fixedly connected to the lower surface of the fixed plate (2), the lower surface of the fixed plate (2) is in contact with the upper surface of the base (1), an electric push rod (704) is fixed to the left side of the upper surface of the base (1), and the outer side of the output shaft of the electric push rod (704) is fixedly connected to the left side of the fixed plate (2).

7. The replaceable chuck of an automobile welding fixture according to claim 5, characterized in that: The moving block (703) moves linearly left and right inside the slide groove (701).

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