Adjustable clamp for front windshield lower cross beam assembly

Abstract

The invention relates to the technical field of automobile clamp equipment, in particular to an adjustable front windshield lower cross beam assembly clamp which comprises a base, a mounting seat is mounted on one side of the upper middle of the base, a jacking disc is movably clamped to the top of the mounting seat, and a driving clamping mechanism is movably arranged on the other side of the middle of the base. An adjusting mechanism is arranged on the side, away from the jacking disc, of the mounting base. Transmission connecting bases are fixedly installed at the two ends of the base, side clamping mechanisms used for clamping the two ends of the front windshield lower cross beam body are arranged on the transmission connecting bases, and transmission mechanisms used for driving the side clamping mechanisms to conduct clamping are arranged in the transmission connecting bases. A workpiece is placed on the material jacking disc, the clamping mechanism is driven to push the workpiece to move from the front side and abut against the adjusting mechanism, clamping of the front side and the rear side of the workpiece is achieved, in the moving process of the workpiece, the workpiece pushes the transmission mechanism to drive the side clamping mechanism to clamp the two ends of the workpiece, and therefore multi-directional clamping is achieved, and the clamping efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive fixture equipment, and particularly to an adjustable fixture for the lower crossbeam assembly of the front windshield. Background Art

[0002] The fixture for the lower crossbeam assembly of the front windshield is a commonly used fixture for the lower crossbeam assembly of automotive parts. At present, the main engine plants develop models of the same platform or high and low configurations, and there are often several lower crossbeam assemblies of the front windshield with roughly similar structures but differences in some details.

[0003] The publication number CN207171310U discloses a welding fixture for the lower end plate of the front windshield crossbeam of an automobile. By sequentially arranging a first clamping device, a second clamping device, a third clamping device, a fourth clamping device, a fifth clamping device, a sixth clamping device, a seventh clamping device, and an eighth clamping device on a bottom plate, and clamping the workpiece through the clamping brackets and clamping arms of the clamping devices, the positioning accuracy of the component clamping is ensured, facilitating subsequent stable processing.

[0004] However, during the use of the existing fixture for the lower crossbeam assembly of the front windshield, different specifications of the lower crossbeam body of the front windshield will be encountered. The existing fixture structures are all fixed, and the overall fixture needs to be replaced for different specifications of the lower crossbeam body of the front windshield. Replacing the fixture is not only cumbersome in operation, but also wastes a large amount of working time. Moreover, it is necessary to operate each clamping point one by one for clamping, resulting in a long time consumed for clamping and fixing, and there may also be quality accidents such as missed clamping, affecting production efficiency. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an adjustable fixture for the lower crossbeam assembly of the front windshield to solve the problems that the existing fixture structures are all fixed and cannot be adjusted, with low applicability, and it is necessary to operate each clamping point one by one during use, resulting in low clamping efficiency.

[0006] Based on the above purpose, the present invention provides an adjustable fixture for the lower crossbeam assembly of the front windshield. On one side of the middle part of the base, a mounting seat is installed. The top of the mounting seat is movably clamped with a blanking plate. The lower crossbeam body of the front windshield is placed on the blanking plate. On the other side of the middle part of the base, a driving clamping mechanism is movably arranged. On the side of the mounting seat away from the blanking plate, an adjusting mechanism is arranged. The driving clamping mechanism and the adjusting mechanism are used to clamp the front and back sides of the lower crossbeam body of the front windshield. Fixed mounting seats are installed at both ends of the base. A side clamping mechanism is arranged on the fixed mounting seat. The side clamping mechanism is used to clamp the two ends of the lower crossbeam body of the front windshield. A transmission mechanism for driving the side clamping mechanism to clamp is arranged in the connecting seat.

[0007] A further improvement is that the driving and clamping mechanism includes a driving threaded rod, a moving threaded block, a moving mounting plate, and clamping rods; a rotating groove is formed in the base, the driving threaded rod is rotatably connected in the rotating groove, the moving threaded block is slidably arranged in the rotating groove, the driving threaded rod is threadedly and movably connected to the moving threaded block, the moving mounting plate is fixedly connected to the upper end of the moving threaded block, the clamping rods are fixedly connected to one side of the moving mounting plate close to the mounting seat, and two groups of clamping rods are provided.

[0008] A further improvement is that a motor mounting frame is fixedly connected to one side of the base, a servo motor is mounted on the motor mounting frame, and one end of the driving threaded rod penetrates through the rotating groove and is fixedly connected to the output end of the servo motor.

[0009] A further improvement is that the adjusting mechanism includes an adjusting mounting plate fixedly connected to the mounting seat, two groups of adjusting connecting columns slidably penetrate through the adjusting mounting plate, and adjusting sliding columns are fixedly connected to one ends of the adjusting connecting columns close to the blanking tray.

[0010] A further improvement is that adjusting springs are sleeved on the adjusting connecting columns, and two ends of each adjusting spring are respectively connected to the adjusting mounting plate and the adjusting sliding column.

[0011] A further improvement is that an adjusting limiting rod is slidably connected to the end of the adjusting mounting plate, a plurality of limiting holes are formed in one side of the adjusting connecting column, and the adjusting limiting rod and the limiting holes are movably clamped.

[0012] A further improvement is that a sliding groove is formed in the mounting seat, the lower ends of the adjusting sliding columns are slidably arranged in the sliding groove, adjusting top plates are movably clamped on the outer side walls of the adjusting sliding columns, and the adjusting top plates are fixedly connected to the blanking tray.

[0013] A further improvement is that the side clamping mechanism includes a connecting mounting block fixedly connected to one side of the top of the transmission connecting seat, a clamping fixed seat is fixedly connected to the outside of the connecting mounting block, a clamping rotating rod is rotatably connected to the clamping fixed seat, a clamping turning plate is fixedly connected to the outer wall of the clamping rotating rod, a clamping mounting plate is fixedly connected to the top of the clamping turning plate, a clamping head is fixedly connected to the bottom of one end of the clamping mounting plate away from the clamping turning plate, and a handrail is fixedly connected to the top of one end of the clamping mounting plate close to the clamping turning plate.

[0014] Further improvements are as follows. The transmission mechanism includes a transmission gear lever and a transmission toothed plate. A transmission sliding groove is formed at the top of the transmission connection seat. The transmission toothed plate is slidably connected in the transmission sliding groove. The transmission gear lever is fixedly connected to the transmission toothed plate. The upper end of the transmission gear lever penetrates and extends out of the transmission sliding groove. A transmission toothed shaft is rotatably installed in the transmission connection seat. One end of the transmission toothed shaft extends into the transmission sliding groove and meshes with the transmission toothed plate. A steering rod is arranged on one side of the top of the transmission connection seat. First bevel gears are fixedly connected to the outer walls of the upper and lower ends of the steering rod. The other end of the transmission toothed shaft penetrates the transmission connection seat and meshes with the first bevel gear at the lower end of the steering rod. A second bevel gear is fixedly connected to the outer wall of one end of the clamping rotating rod. The second bevel gear meshes with the first bevel gear at the upper end of the steering rod.

[0015] Further improvements are as follows. Steering fixing blocks are fixedly connected to the outer sides of the connection mounting block and the transmission connection seat. The steering rod is rotatably installed on the rotating fixing block.

[0016] The beneficial effects of the present invention are as follows. In this application, a driving clamping mechanism and an adjusting mechanism are provided to clamp both sides of the front windshield lower crossbeam body. The adjusting mechanism drives the positions of the adjusting sliding column and the adjusting top plate by sliding the adjusting connecting column on the adjusting mounting plate. The adjusting limiting rod limits the position of the adjusting connecting column, thereby adjusting the clamping distance between the adjusting top plate and the clamping rod, which is applicable to clamping front windshield lower crossbeam bodies of different sizes and widths, improving the applicable range of the clamping device. At the same time, there is no need to replace the fixture, saving a large amount of replacement time. The driving threaded rod is rotated by the servo motor to drive the movement and clamping of the clamping rod. The clamping rod moves and pushes the front windshield lower crossbeam body against the adjusting top plate, and the front windshield lower crossbeam body is clamped and fixed by the clamping rod and the adjusting top plate, eliminating the need for manual clamping, saving a large amount of labor, and improving the clamping efficiency.

[0017] By setting a connection mounting block on the transmission connection seat to position the end of the front windshield lower crossbeam body, setting a side clamping mechanism to clamp both ends of the front windshield lower crossbeam body, and setting a transmission mechanism to drive the side clamping mechanism to clamp. By setting a transmission gear lever, the transmission gear lever is driven by the movement of the front windshield lower crossbeam body. Through the movement of the transmission gear lever, the transmission toothed plate is driven to slide, the transmission toothed shaft rotates, the steering rod rotates, and the clamping rotating rod rotates in sequence. Through the rotation of the clamping rotating rod, the clamping turning plate, the clamping mounting plate, and the clamping head turn over to clamp the end of the front windshield lower crossbeam body, thereby realizing multi-directional clamping and improving the clamping stability. And the side clamping mechanism is driven to clamp by the movement of the front windshield lower crossbeam body. Multiple clamping devices are only driven to clamp integrally by a servo motor, reducing the use of driving equipment, greatly reducing the production equipment cost, and also reducing the manual clamping operations at each clamping point. By pushing the front windshield lower crossbeam body, multi-point simultaneous clamping is achieved, greatly improving the clamping efficiency and the production efficiency. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 Schematic diagram of the sectional structure of the base of an embodiment of the present invention; Figure 3 Schematic diagram of the overall sectional structure of an embodiment of the present invention; Figure 4 Schematic diagram of the sectional structure of the drive clamping mechanism of an embodiment of the present invention; Figure 5 Schematic diagram of the sectional structure of the adjustment mechanism of an embodiment of the present invention; Figure 6 Schematic diagram of the sectional structure of the transmission mechanism of an embodiment of the present invention; Figure 7 Schematic diagram of the structure of the side clamping mechanism of an embodiment of the present invention.

[0020] The markings in the figure are: 1, base; 2, mounting seat; 3, ejector plate; 4, front windshield lower crossbeam body; 5, drive clamping mechanism; 501, drive threaded rod; 502, moving threaded block; 503, moving mounting plate; 504, clamping rod; 505, rotating groove; 506, motor mounting bracket; 507, servo motor; 6, adjustment mechanism; 601, adjustment mounting plate; 602, adjustment connecting column; 603, adjustment sliding column; 604, adjustment spring; 605, adjustment limiting rod; 606, sliding groove; 607, adjustment top plate; 7, transmission connection seat; 8, side clamping mechanism; 801, connection mounting block; 802, clamping fixed seat; 803, clamping rotating rod; 804, clamping flip plate; 805, clamping mounting plate; 806, clamping head; 807, armrest; 9, transmission mechanism; 901, transmission shift lever; 902, transmission toothed plate; 903, transmission chute; 904, transmission tooth shaft; 905, steering rod; 906, steering fixed block. Detailed implementation manners

[0021] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the following further details the present invention in combination with specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] As Figures 1-7 shown, an adjustable front windshield lower crossbeam assembly fixture includes a base 1. On one side of the middle part of the base 1, a mounting seat 2 is installed. A top feeding plate 3 is movably clamped on the top of the mounting seat 2. The front windshield lower crossbeam body 4 is placed on the top feeding plate 3. Transmission connection seats 7 are fixedly installed at both ends of the base 1. Both ends of the front windshield lower crossbeam body 4 are respectively placed on the transmission connection seats 7 at both ends. A side clamping mechanism 8 is arranged on the transmission connection seat 7. The side clamping mechanism 8 is used to clamp both ends of the front windshield lower crossbeam body 4. A transmission mechanism 9 for driving the side clamping mechanism 8 to clamp is arranged in the connection seat.

[0024] On the other side of the middle part of the base 1, a driving clamping mechanism 5 is movably arranged. On the side of the mounting seat 2 away from the top feeding plate 3, an adjusting mechanism 6 is arranged. The driving clamping mechanism 5 and the adjusting mechanism 6 are used to clamp the front and rear sides of the front windshield lower crossbeam body 4.

[0025] As Figure 3 、 4 shown, the driving clamping mechanism 5 includes a driving threaded rod 501, a moving threaded block 502, a moving mounting plate 503 and clamping rods 504. A rotating groove 505 is formed in the base 1. The driving threaded rod 501 is rotatably connected in the rotating groove 505. The moving threaded block 502 is slidably arranged in the rotating groove 505. The driving threaded rod 501 is threadedly and movably connected with the moving threaded block 502. The moving mounting plate 503 is fixedly connected to the upper end of the moving threaded block 502. The clamping rods 504 are fixedly connected to the side of the moving mounting plate 503 close to the mounting seat 2. There are two groups of clamping rods 504.

[0026] One side of the base 1 is fixedly connected with a motor mounting bracket 506. A servo motor 507 is mounted on the motor mounting bracket 506. One end of the driving threaded rod 501 penetrates through the rotating slot 505 and is fixedly connected with the output end of the servo motor 507. The driving threaded rod 501 is driven to rotate by the servo motor 507, so that the moving threaded block 502 slides in the rotating slot 505. The moving mounting plate 503 moves together with the moving threaded block 502. The clamping rod 504 moves and fits against one side of the front windshield lower crossbeam body 4 for clamping and fixing.

[0027] As Figure 5 shown, the adjusting mechanism 6 includes an adjusting mounting plate 601 fixedly connected to the mounting seat 2. Two groups of adjusting connecting columns 602 penetrate through the adjusting mounting plate 601 in a sliding manner. One ends of the adjusting connecting columns 602 close to the blanking tray 3 are fixedly connected with adjusting sliding columns 603. An adjusting spring 604 is sleeved on the adjusting connecting columns 602. Two ends of the adjusting spring 604 are respectively connected with the adjusting mounting plate 601 and the adjusting sliding column 603. An adjusting limiting rod 605 is slidably connected to the end of the adjusting mounting plate 601. A plurality of groups of limiting holes are formed on one side of the adjusting connecting column 602. The adjusting limiting rod 605 and the limiting holes are movably clamped. A sliding slot 606 is formed on the mounting seat 2. The lower ends of the adjusting sliding columns 603 are slidably arranged in the sliding slot 606. Adjusting top plates 607 are movably clamped on the outer side walls of the adjusting sliding columns 603. The adjusting top plates 607 are fixedly connected with the blanking tray 3. When clamping front windshield lower crossbeam bodies 4 of different specifications, the adjusting limiting rod 605 is pulled out. When the clamping mechanism 5 contacts the front windshield lower crossbeam body 4 and pushes it to perform a linear motion, the other side of the front windshield lower crossbeam body 4 contacts and fits against the adjusting top plate 607. The front windshield lower crossbeam body 4 pushes the adjusting sliding column 603 to perform a linear motion through the adjusting top plate 607. The adjusting sliding column 603 drives the adjusting connecting column 602 to move for position adjustment. After moving to a position suitable for the width of the front windshield lower crossbeam body 4, the adjusting limiting rod 605 is inserted into the corresponding limiting hole for position fixing, so as to fix the position of the adjusting top plate 607. The front windshield lower crossbeam bodies 4 of different widths are clamped by the adjusting top plate 607 and the clamping rod 504, improving the clamping application range.

[0028] As Figure 7As shown in the figure, the side clamping mechanism 8 includes a connecting and mounting block 801 fixedly connected to one side of the top of the transmission connecting seat 7. The connecting and mounting block 801 is used to abut and limit both ends of the front windshield lower crossbeam body 4. A clamping and fixing seat 802 is fixedly connected to the outside of the connecting and mounting block 801. A clamping rotating rod 803 is rotatably connected to the clamping and fixing seat 802. A clamping and flipping plate 804 is fixedly connected to the outer wall of the clamping rotating rod 803. A clamping mounting plate 805 is fixedly connected to the top of the clamping and flipping plate 804. A clamping head 806 is fixedly connected to the bottom of one end of the clamping mounting plate 805 away from the clamping and flipping plate 804. An armrest 807 is fixedly connected to the top of one end of the clamping mounting plate 805 close to the clamping and flipping plate 804. The clamping rotating rod 803 drives the clamping and flipping plate 804 to rotate. The clamping and flipping plate 804 drives the clamping head 806 to flip together through the clamping mounting plate 805, so as to cooperate with the transmission connecting seat 7 from the upper side to clamp the end of the front windshield lower crossbeam body 4 from the upper and lower sides.

[0029] As Figure 6 shown in the figure, the transmission mechanism 9 includes a transmission shift lever 901 and a transmission gear plate 902. A transmission sliding groove 903 is formed in the top of the transmission connecting seat 7. The transmission gear plate 902 is slidably connected in the transmission sliding groove 903. The transmission shift lever 901 is fixedly connected to the transmission gear plate 902. The upper end of the transmission shift lever 901 penetrates and extends out of the transmission sliding groove 903. A transmission gear shaft 904 is rotatably installed in the transmission connecting seat 7. One end of the transmission gear shaft 904 extends into the transmission sliding groove 903 and meshes with the transmission gear plate 902. A steering rod 905 is arranged on one side of the top of the transmission connecting seat 7. Steering fixing blocks 906 are fixedly connected to the outside of both the connecting and mounting block 801 and the transmission connecting seat 7. The steering rod 905 is rotatably installed on the rotating fixing block. First bevel gears are fixedly connected to the outer walls of both the upper and lower ends of the steering rod 905. The other end of the transmission gear shaft 904 penetrates the transmission connecting seat 7 and meshes with the first bevel gear at the lower end of the steering rod 905. A second bevel gear is fixedly connected to the outer wall of one end of the clamping rotating rod 803. The second bevel gear meshes with the first bevel gear at the upper end of the steering rod 905. The movement of the front windshield lower crossbeam body 4 is used to push the transmission shift lever 901 to move. The transmission shift lever 901 drives the transmission gear plate 902 to slide in the transmission sliding groove 903. Due to the meshing relationship between the transmission gear plate 902 and the transmission gear shaft 904, the transmission gear shaft 904 rotates as the transmission gear plate 902 slides. The transmission gear shaft 904 drives the steering rod 905 to rotate. The steering rod 905 drives the rotation of the clamping rotating rod 803 through the meshing relationship of the first bevel gear and the second bevel gear. The flipping and clamping of the clamping head 806 is realized through the rotation of the clamping rotating rod 803, effectively improving the convenience of clamping the workpiece.

[0030] During use, place the front windshield lower crossbeam body 4 on the blanking tray 3. Place the two ends of the front windshield lower crossbeam body 4 on the transmission connection seats 7 at both ends respectively. The connecting mounting block 801 limits the two ends of the front windshield lower crossbeam body 4. Adjust according to the specifications of the front windshield lower crossbeam body 4. Pull out the adjustment limit rod 605 to release the limit on the adjustment connection column 602. The servo motor 507 drives the driving threaded rod 501 to rotate, so that the moving threaded block 502 drives the moving mounting plate 503 to move. The clamping rod 504 moves and fits against one side of the front windshield lower crossbeam body 4. The clamping rod 504 pushes the front windshield lower crossbeam body 4 to move. The front windshield lower crossbeam body 4 pushes the adjustment sliding column 603 and the adjustment connection column 602 to slide through the adjustment top plate 607. When it moves to a position suitable for the size of the front windshield lower crossbeam body 4, insert the adjustment limit rod 605 into the corresponding limit hole for limit fixation. At this time, the two sides of the front windshield lower crossbeam body 4 are clamped and fixed by the adjustment top plate 607 and the clamping rod 504. During the movement of the front windshield lower crossbeam body 4, the side edge of the end of the front windshield lower crossbeam body 4 contacts and pushes the transmission shift lever 901 to slide. The transmission shift lever 901 drives the transmission tooth plate 902 to slide. As the transmission tooth plate 902 slides, the electric transmission tooth shaft 904 rotates. The rotation of the transmission tooth shaft 904 drives the steering rod 905 to rotate through the meshing relationship. The steering rod 905 then drives the clamping rotating rod 803 to rotate through the meshing action. The clamping rotating rod 803 drives the clamping mounting plate 805 and the clamping head 806 to flip through the clamping flip plate 804. The clamping head 806 fits against the upper side of the end of the front windshield lower crossbeam body 4, and cooperates with the transmission connection seat 7 to clamp the end of the front windshield lower crossbeam body 4, thereby realizing multi-directional clamping of the front windshield lower crossbeam body 4, improving the clamping stability; and reducing manual operation, effectively improving the clamping efficiency and the working efficiency.

[0031] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable fixture for the lower crossbeam assembly of the front windshield, comprising a base (1), characterized in that, On one side of the middle upper part of the base (1), a mounting seat (2) is installed. A blanking plate (3) is movably clamped on the top of the mounting seat (2). The front windshield lower crossbeam body (4) is placed on the blanking plate (3). On the other side of the middle part of the base (1), a driving clamping mechanism (5) is movably arranged. On one side of the mounting seat (2) away from the blanking plate (3), an adjusting mechanism (6) is arranged. The driving clamping mechanism (5) and the adjusting mechanism (6) are used to clamp the front and rear sides of the front windshield lower crossbeam body (4). Transmission connection seats (7) are fixedly installed at both ends of the base (1). A side clamping mechanism (8) is arranged on the transmission connection seat (7). The side clamping mechanism (8) is used to clamp both ends of the front windshield lower crossbeam body (4). A transmission mechanism (9) for driving the side clamping mechanism (8) to clamp is arranged in the connection seat.

2. The adjustable front windshield lower crossbeam assembly fixture according to claim 1, characterized in that The driving clamping mechanism (5) includes a driving threaded rod (501), a moving threaded block (502), a moving mounting plate (503) and a clamping rod (504). A rotating groove (505) is formed on the base (1). The driving threaded rod (501) is rotatably connected in the rotating groove (505). The moving threaded block (502) is slidably arranged in the rotating groove (505). The driving threaded rod (501) is threadedly and movably connected with the moving threaded block (502). The moving mounting plate (503) is fixedly connected to the upper end of the moving threaded block (502). The clamping rod (504) is fixedly connected to the side of the moving mounting plate (503) close to the mounting seat (2). Two groups of clamping rods (504) are provided.

3. The adjustable front windshield lower crossbeam assembly fixture according to claim 2, characterized in that A motor mounting frame (506) is fixedly connected to one side of the base (1). A servo motor (507) is installed on the motor mounting frame (506). One end of the driving threaded rod (501) penetrates through the rotating groove (505) and is fixedly connected to the output end of the servo motor (507).

4. An adjustable front windshield lower crossbeam assembly fixture according to claim 1, characterized in that, The adjusting mechanism (6) includes an adjusting mounting plate (601) fixedly connected to the mounting seat (2). Two groups of adjusting connecting columns (602) are slidably penetrated through the adjusting mounting plate (601). One end of each adjusting connecting column (602) close to the blanking plate (3) is fixedly connected with an adjusting sliding column (603).

5. An adjustable front windshield lower crossbeam assembly fixture according to claim 4, characterized in that, An adjusting spring (604) is sleeved on the adjusting connecting column (602). The two ends of the adjusting spring (604) are respectively connected to the adjusting mounting plate (601) and the adjusting sliding column (603).

6. The adjustable front windshield lower crossbeam assembly fixture according to claim 4, characterized in that, An adjusting limiting rod (605) is slidably connected to the end of the adjusting mounting plate (601). Multiple groups of limiting holes are formed on one side of the adjusting connecting column (602). The adjusting limiting rod (605) and the limiting holes are movably clamped.

7. An adjustable fixture for the lower cross beam assembly of the front windshield according to claim 4, characterized in that A sliding groove (606) is formed on the mounting seat (2). The lower end of the adjusting sliding column (603) is slidably arranged in the sliding groove (606). Adjusting top plates (607) are movably clamped on the outer side walls of the adjusting sliding columns (603). The adjusting top plates (607) are fixedly connected to the blanking plate (3).

8. An adjustable front windshield lower crossbeam assembly fixture according to claim 1, characterized in that The side clamping mechanism (8) includes a connecting and mounting block (801) fixedly connected to one side of the top of the transmission connecting seat (7). A clamping and fixing seat (802) is fixedly connected to the outside of the connecting and mounting block (801). A clamping rotating rod (803) is rotatably connected to the clamping and fixing seat (802). A clamping and flipping plate (804) is fixedly connected to the outer wall of the clamping rotating rod (803). A clamping mounting plate (805) is fixedly connected to the top of the clamping and flipping plate (804). A clamping head (806) is fixedly connected to the bottom of one end of the clamping mounting plate (805) away from the clamping and flipping plate (804). A handrail (807) is fixedly connected to the top of one end of the clamping mounting plate (805) close to the clamping and flipping plate (804).

9. The adjustable front windshield lower crossbeam assembly fixture according to claim 8, characterized in that, The transmission mechanism (9) includes a transmission shift lever (901) and a transmission toothed plate (902). A transmission chute (903) is formed in the top of the transmission connecting seat (7). The transmission toothed plate (902) is slidably connected in the transmission chute (903). The transmission shift lever (901) is fixedly connected to the transmission toothed plate (902). The upper end of the transmission shift lever (901) penetrates and extends out of the transmission chute (903). A transmission toothed shaft (904) is rotatably installed in the transmission connecting seat (7). One end of the transmission toothed shaft (904) extends into the transmission chute (903) and meshes with the transmission toothed plate (902). A steering rod (905) is arranged on one side of the top of the transmission connecting seat (7). First bevel gears are fixedly connected to the outer walls of the upper and lower ends of the steering rod (905). The other end of the transmission toothed shaft (904) penetrates the transmission connecting seat (7) and meshes with the first bevel gear at the lower end of the steering rod (905). A second bevel gear is fixedly connected to the outer wall of one end of the clamping rotating rod (803). The second bevel gear meshes with the first bevel gear at the upper end of the steering rod (905).

10. The adjustable front windshield lower crossbeam assembly fixture according to claim 9, characterized in that, Steering fixing blocks (906) are fixedly connected to the outside of the connecting and mounting block (801) and the transmission connecting seat (7). The steering rod (905) is rotatably installed on the rotating fixing blocks.

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