Automobile bumper welding fixture

Abstract

The utility model relates to the technical field of automobile part production, and discloses an automobile bumper welding clamp which comprises a top table, and a base is arranged at the bottom end of the top table. When the automobile bumper welding clamp is used, after a welding pipe fitting is clamped and fixed to the top of the supporting column, when a welding worker welds the pipe fittings fixed to the clamp, the servo motor can be controlled to start, and the speed reducer is used for driving the connecting shaft to rotate; when a connecting shaft rotates, a driving bevel gear and a driven bevel gear which are meshed can be utilized to drive a one-way lead screw to rotate, when the one-way lead screw rotates, a threaded opening in threaded connection can be utilized to drive a top table to move upwards at the top end of a base, meanwhile, a clamped pipe fitting can be driven to move upwards, and the welding position of the pipe fitting can be adjusted up and down; and the welding fixture can be conveniently adjusted to a proper height welding position for welding, and the problem that the welding operation use height of the welding fixture is inconvenient to adjust is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts production, in particular to an automobile bumper welding fixture. Background Technique

[0002] Automobile bumpers are common covering parts at the front and rear positions of the exterior of automobiles. They not only have a decorative function, but more importantly, they can absorb and buffer external impact forces, protect the vehicle body and the safety of the vehicle occupants. The front and rear bumpers of most cars are generally made of plastic, which is relatively inexpensive and easy to install. In order to improve the safety during off-road driving, some off-road vehicles will install steel anti-collision bumpers at the front and rear of the vehicle. Compared with ordinary plastic bumpers, they are more tough and durable and have better protection performance for vehicle occupants. Steel bumpers are generally welded during production and processing. During the welding process, in order to facilitate the fixation of steel pipe parts on the bumper, welding fixtures are required.

[0003] However, when the automobile bumper welding fixture is used for welding production and processing of some front anti-collision bumpers of off-road vehicles, after fixing and clamping some pipe fittings used to form the bumper on the welding fixture, when manually welding between the pipe fittings, since the height of the fixture is mostly fixed, during the welding operation, some welders of different heights often need to bend down for welding operations, and the welding process is very laborious and uncomfortable, there are deficiencies, and it is not convenient to adjust the welding operation height of the welding fixture.

[0004] Now, a new type of automobile bumper welding fixture is proposed to solve the above deficiencies. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automobile bumper welding fixture to solve the problem of inconvenient adjustment of the welding operation height of the welding fixture proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an automobile bumper welding fixture, including a top platform, a base is arranged at the bottom end of the top platform, columns are respectively arranged on both sides of both ends of the top of the top platform, and a clamping seat is arranged at the top end of the column, and a lifting mechanism for adjusting the welding use height of the welding fixture is arranged on the base;

[0007] The lifting mechanism includes a reducer, a servo motor, a threaded port, a unidirectional lead screw, an inner cavity, a driven bevel gear, a driving bevel gear, a connecting shaft, a guide rod, and a guiding hole. At the middle positions on both sides of the top end of the base, the unidirectional lead screws are vertically and movably connected respectively. Inside the two sides of the bottom end of the top table, inner cavities are respectively formed. At the middle positions on both sides of the top end of the top table, threaded ports are formed. At the four corners of the top end of the top table, guiding holes are respectively formed. At the four corners of the top end of the base, guide rods are respectively fixed. Inside the base, the connecting shaft is horizontally and movably connected, and on both sides of the outside of the connecting shaft, driving bevel gears are respectively fixedly installed. The bottom end of the unidirectional lead screw penetrates through the inside of the top end of the base and is fixed with a driven bevel gear. On the left side of the base, a reducer is fixedly installed, and on the top end of the reducer, a servo motor is fixedly installed.

[0008] Preferably, the output shaft of the servo motor is fixedly connected to the input shaft of the reducer, the output shaft of the reducer is fixedly connected to the left side of the connecting shaft, and the driving bevel gear and the driven bevel gear are meshed and connected.

[0009] Preferably, the threaded port and the guiding hole respectively penetrate through the top end of the top table and are communicated with the inside of the inner cavity. The guide rod penetrates through the inside of the guiding hole, and the unidirectional lead screw is threadedly connected inside the threaded port.

[0010] Preferably, on both sides of the inside of the two ends of the top table, bidirectional lead screws are horizontally and movably connected respectively, and on both sides of the outside of the bidirectional lead screws, threaded sleeves are respectively threadedly connected. The right side of the bidirectional lead screw penetrates through the right side of the top table and is fixed with a turning handle. At both ends of the top of the top table, limiting grooves are respectively formed. Inside the clamping seat, a pressing plate is arranged. Inside the back end of the clamping seat, a threaded hole is formed, and inside the threaded hole, a driving rod is threadedly rotated and connected.

[0011] Preferably, the top end of the threaded sleeve penetrates through the top end of the top table and is fixedly connected to the bottom end of the support column.

[0012] Preferably, the front end of the driving rod penetrates through the inside of the threaded hole and is movably connected to the back end of the pressing plate. External threads are formed on the outside of the driving rod.

[0013] Preferably, the bottom end of the clamping seat is welded and fixed with an insertion block. Inside the insertion block, an insertion hole is arranged. Inside the top end of the left side of the support column, a second insertion opening is formed. At the top of the front end of the support column, a first insertion opening is formed. The first insertion opening and the second insertion opening respectively penetrate through the front end and the left side of the support column and are communicated with the inside of the slot. Inside the second insertion opening, a pin is inserted.

[0014] Preferably, the insertion hole penetrates through the inside of the insertion block, and the pin penetrates through the inside of the insertion hole.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This automotive bumper welding fixture not only realizes the adjustment of the welding operation height of the welding fixture for convenience, enables the adjustment and welding processing of bumpers of different sizes for use, but also realizes the adjustment of the placement and welding position of the pipe fittings conveniently;

[0016] (1) By providing a top platform, a base, a reducer, a servo motor, a driven bevel gear, a driving bevel gear, a connecting shaft, a guiding hole and a guide rod, when the welding fixture is in use, after clamping and fixing the welding pipe fittings on the top of the support column, when a welder welds between the pipe fittings fixed on the fixture, the servo motor can be controlled to start to drive the connecting shaft to rotate by using the reducer. While the connecting shaft rotates, the driving bevel gear and the driven bevel gear in meshing can be utilized to drive the one-way lead screw to rotate. While the one-way lead screw rotates, the threaded port connected by thread can be utilized to drive the top platform to move upward at the top of the base, and at the same time, the clamped pipe fittings can be driven to move upward. By adjusting the welding position of the pipe fittings up and down, it is convenient for the welder to adjust to a suitable height welding position for welding use, and the comfort during welding operation is improved;

[0017] (2) By providing a top platform, a bidirectional lead screw, a threaded sleeve, a support column, a clamping seat, a limiting groove, a driving rod, a threaded hole and a pressing plate, when the welding fixture is used to fix the pipe fittings for welding, according to the length dimension of the pipe fittings, the turning handle can be rotated on the right side of the top platform to drive the bidirectional lead screw to rotate. While the bidirectional lead screw rotates, the threaded sleeve connected by external thread can be utilized to drive the support column and the clamping seat to move inward or outward simultaneously at the top of the top platform. After adjusting the two clamping seats to adapt to the length of the pipe fittings, then place the pipe fittings between the two clamping seats, and finally rotate the driving rods on the two clamping seats respectively, and drive the pressing plate to press and clamp the pipe fittings inside the clamping seat. By providing two adjustable-position support columns and clamping seats, it is convenient to fix the pipe fittings used for some bumpers with different lengths and pipe diameters for use;

[0018] (3) By providing a clamping seat, a plug pin, a driving rod, a first socket, a slot, a plug block, a jack and a second socket, when fixing the pipe fittings used for welding the metal bumper, the plug pin provided can be pulled out from the inside of the current second socket at the top end on the left side of the support column, then the plug block at the bottom end of the clamping seat can be disassembled upward from the top of the support column, and then the clamping seat and the plug block can be rotated and inserted into the slot. Then, after inserting the plug pin from the inside of the first socket into the jack, the clamping seat can be reversely clamped and used to fix the pipe fittings longitudinally, so as to facilitate the vertical welding between the two pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0020] Figure 2Schematic top view structure diagram of the present utility model;

[0021] Figure 3 Schematic side view structure diagram of the guide rod of the present utility model;

[0022] Figure 4 Schematic front view partial sectional enlarged structure diagram of the insertion block of the present utility model.

[0023] In the figure: 1, base; 2, reducer; 3, servo motor; 4, top table; 5, bidirectional lead screw; 6, threaded sleeve; 7, support pillar; 8, clamp seat; 9, insertion pin; 10, first socket; 11, threaded port; 12, unidirectional lead screw; 13, turning handle; 14, inner cavity; 15, driven bevel gear; 16, driving bevel gear; 17, connecting shaft; 18, limiting groove; 19, driving rod; 20, threaded hole; 21, pressing plate; 22, guiding hole; 23, guide rod; 24, slot; 25, insertion block; 26, insertion hole; 27, second socket. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1-4 , an automobile bumper welding fixture, including a top table 4, a base 1 is arranged at the bottom end of the top table 4, support pillars 7 are respectively arranged on both sides of the top of the top table 4, and a clamp seat 8 is arranged at the top end of the support pillar 7. A lifting mechanism for adjusting the welding height of the welding fixture is arranged on the base 1;

[0026] The lifting mechanism includes a reducer 2, a servo motor 3, a threaded port 11, a unidirectional lead screw 12, an inner cavity 14, a driven bevel gear 15, a driving bevel gear 16, a connecting shaft 17, a guide rod 23 and a guiding hole 22. The middle positions on both sides of the top end of the base 1 are respectively vertically movably connected with a unidirectional lead screw 12. Inner cavities 14 are respectively opened in the inner parts of both sides of the bottom end of the top table 4. Threaded ports 11 are opened at the middle positions on both sides of the top end of the top table 4. Guiding holes 22 are respectively opened at the four corners of the top end of the top table 4. Guide rods 23 are respectively fixed at the four corners of the top end of the base 1. A connecting shaft 17 is horizontally movably connected inside the base 1, and driving bevel gears 16 are respectively fixedly installed on both sides of the outside of the connecting shaft 17. The bottom end of the unidirectional lead screw 12 penetrates through the inside of the top end of the base 1 and is fixed with a driven bevel gear 15. A reducer 2 is fixedly installed on the left side of the base 1, and a servo motor 3 is fixedly installed at the top end of the reducer 2;

[0027] The output shaft of the servo motor 3 is fixedly connected to the input shaft of the speed reducer 2. The output shaft of the speed reducer 2 is fixedly connected to the left side of the connecting shaft 17. The driving bevel gear 16 and the driven bevel gear 15 are meshed and connected. The threaded port 11 and the guiding hole 22 respectively penetrate through the top end of the top platform 4 and are communicated with the inside of the inner cavity 14. The guide rod 23 penetrates through the inside of the guiding hole 22. The one-way lead screw 12 is threadedly connected inside the threaded port 11.

[0028] Specifically, as Figures 1-3 shown, when the welding fixture is in use, after clamping and fixing the welded pipe fittings on the top of the support column 7, when the welder welds between the pipe fittings fixed on the fixture, the servo motor 3 can be controlled to start, and the connecting shaft 17 can be driven to rotate by the speed reducer 2. While the connecting shaft 17 rotates, the driving bevel gear 16 and the driven bevel gear 15 in mesh can be used to drive the one-way lead screw 12 to rotate. While the one-way lead screw 12 rotates, the threaded port 11 connected by thread can be used to drive the top platform 4 to move upward on the top end of the base 1, and at the same time, the clamped pipe fittings can be driven to move upward. By adjusting the welding position of the pipe fittings up and down, it is convenient for the welder to adjust to a suitable height welding position for welding use, improving the comfort during the welding operation.

[0029] Embodiment 2: The two ends of the top platform 4 are respectively horizontally movably connected with a bidirectional lead screw 5, and the two sides of the outside of the bidirectional lead screw 5 are respectively threadedly connected with a threaded sleeve 6. The right side of the bidirectional lead screw 5 penetrates through the right side of the top platform 4 and is fixed with a turning handle 13. The two ends of the top of the top platform 4 are respectively provided with a limiting groove 18. A pressing plate 21 is arranged inside the clamping seat 8. A threaded hole 20 is opened inside the rear end of the clamping seat 8, and a driving rod 19 is threadedly rotated inside the threaded hole 20. The top end of the threaded sleeve 6 penetrates through the top end of the top platform 4 and is fixedly connected with the bottom end of the support column 7. The front end of the driving rod 19 penetrates through the inside of the threaded hole 20 and is movably connected with the rear end of the pressing plate 21. External threads are provided on the outside of the driving rod 19.

[0030] Specifically, as Figure 1 and Figure 2 shown, according to the length dimension of the pipe fittings, the turning handle 13 can be rotated on the right side of the top platform 4 to drive the bidirectional lead screw 5 to rotate. While the bidirectional lead screw 5 rotates, the threaded sleeve 6 connected by external thread can be used to drive the support column 7 and the clamping seat 8 to move inward or outward simultaneously on the top end of the top platform 4. After adjusting the two sets of clamping seats 8 to adapt to the length of the pipe fittings, then place the pipe fittings in the two sets of clamping seats 8, and finally rotate the driving rods 19 on the two sets of clamping seats 8 respectively, and drive the pressing plate 21 to tightly clamp the pipe fittings inside the clamping seat 8. The two sets of support columns 7 and clamping seats 8 with adjustable positions are convenient for fixing and using pipe fittings for bumpers with different lengths and pipe diameters.

[0031] Embodiment 3: A plug 25 is fixedly welded to the bottom end of the clamping seat 8. A jack 26 is arranged inside the plug 25. A second socket 27 is opened inside the top end on the left side of the support column 7. A first socket 10 is opened at the top of the front end of the support column 7. The first socket 10 and the second socket 27 respectively penetrate through the front end and the left side of the support column 7 and are communicated with the inside of the slot 24. A pin 9 is inserted into the second socket 27. The jack 26 penetrates through the inside of the plug 25, and the pin 9 penetrates through the inside of the jack 26;

[0032] Specifically, as Figure 1 , Figure 2 and Figure 4 shown, after the pin 9 arranged at the top end on the left side of the support column 7 is pulled outwards from the inside of the current second socket 27, the plug 25 at the bottom end of the clamping seat 8 can be detached upwards from the top end of the support column 7. After that, the clamping seat 8 and the plug 25 can be rotated and then inserted into the slot 24. Then, after the pin 9 is inserted into the jack 26 from the inside of the first socket 10, the clamping seat 8 can be clamped in a reversed direction for longitudinal fixation of the pipe fitting, for vertical welding between two groups of pipe fittings.

[0033] Working principle: When the utility model is used to fix the bumper pipe fitting for welding, according to the length dimension of the pipe fitting, the rotary handle 13 can be rotated on the right side of the top platform 4 to drive the bidirectional lead screw 5 to rotate. While the bidirectional lead screw 5 rotates, the threaded sleeve 6 connected by external threads can be used to drive the support column 7 and the clamping seat 8 to move inwards or outwards simultaneously at the top end of the top platform 4. After the two clamping seats 8 are adjusted to adapt to the length of the pipe fitting, then the pipe fitting is placed between the two clamping seats 8. Finally, the drive rods 19 on the two clamping seats 8 are rotated respectively, and the pressing plate 21 is driven to press and clamp the pipe fitting inside the clamping seat 8. At the same time, when fixing the pipe fitting used for welding the metal bumper, after the pin 9 arranged at the top end on the left side of the support column 7 is pulled outwards from the inside of the current second socket 27, the plug 25 at the bottom end of the clamping seat 8 can be detached upwards from the top end of the support column 7. After that, the clamping seat 8 and the plug 25 can be rotated and then inserted into the slot 24. Then, after the pin 9 is inserted into the jack 26 from the inside of the first socket 10, the clamping seat 8 can be clamped in a reversed direction for longitudinal fixation of the pipe fitting, so as to perform vertical welding between two groups of pipe fittings. After the welded pipe fitting is clamped and fixed on the top of the support column 7, when the welder welds between the pipe fittings fixed on the fixture, the servo motor 3 can be controlled to start to drive the connecting shaft 17 to rotate by using the reducer 2. While the connecting shaft 17 rotates, the driving bevel gear 16 and the driven bevel gear 15 engaged with each other can be used to drive the unidirectional lead screw 12 to rotate. While the unidirectional lead screw 12 rotates, the threaded port 11 connected by threads can be used to drive the top platform 4 to move upwards at the top end of the base 1, and at the same time, the clamped pipe fitting can be driven to move upwards to adjust the welding position of the pipe fitting up and down.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or essential characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights involved.

Claims

1. An automobile bumper welding fixture, including a top table (4), characterized in that: A base (1) is provided at the bottom end of the top platform (4). On both sides of the two ends of the top of the top platform (4), there are support columns (7) respectively, and a clamping seat (8) is provided at the top end of the support column (7). A lifting mechanism for adjusting the welding height of the welding fixture is provided on the base (1). The lifting mechanism includes a reducer (2), a servo motor (3), a threaded port (11), a unidirectional lead screw (12), an inner cavity (14), a driven bevel gear (15), a driving bevel gear (16), a connecting shaft (17), a guide rod (23) and a guide hole (22). At the middle positions on both sides of the top end of the base (1), the unidirectional lead screws (12) are respectively vertically movably connected. Inside the two sides of the bottom end of the top platform (4), inner cavities (14) are respectively opened. At the middle positions on both sides of the top end of the top platform (4), threaded ports (11) are opened. At the four corners of the top end of the top platform (4), guide holes (22) are respectively opened. At the four corners of the top end of the base (1), guide rods (23) are respectively fixed. Inside the base (1), a connecting shaft (17) is horizontally movably connected, and driving bevel gears (16) are respectively fixedly installed on both sides of the outside of the connecting shaft (17). The bottom end of the unidirectional lead screw (12) penetrates through the inside of the top end of the base (1) and is fixed with a driven bevel gear (15). The reducer (2) is fixedly installed on the left side of the base (1), and the servo motor (3) is fixedly installed on the top end of the reducer (2).

2. The automotive bumper welding jig according to claim 1, characterized in that: The output shaft of the servo motor (3) is fixedly connected to the input shaft of the reducer (2), and the output shaft of the reducer (2) is fixedly connected to the left side of the connecting shaft (17). The driving bevel gear (16) and the driven bevel gear (15) are meshed and connected with each other.

3. The automotive bumper welding jig according to claim 1, wherein: The threaded port (11) and the guide hole (22) respectively penetrate through the top end of the top platform (4) and are communicated with the inside of the inner cavity (14). The guide rod (23) penetrates through the inside of the guide hole (22). The unidirectional lead screw (12) is threadedly connected inside the threaded port (11).

4. The automotive bumper welding fixture according to claim 1, wherein: Inside the two ends of the top platform (4), bidirectional lead screws (5) are respectively horizontally movably connected, and threaded sleeves (6) are respectively threadedly connected to both sides of the outside of the bidirectional lead screw (5). The right side of the bidirectional lead screw (5) penetrates through the right side of the top platform (4) and is fixed with a turning handle (13). At the two ends of the top of the top platform (4), limit grooves (18) are respectively opened. Inside the clamping seat (8), there is a pressing plate (21). Inside the rear end of the clamping seat (8), a threaded hole (20) is opened, and a driving rod (19) is threadedly rotatably connected inside the threaded hole (20).

5. The automotive bumper welding fixture according to claim 4, wherein: The top end of the threaded sleeve (6) penetrates through the top end of the top platform (4) and is fixedly connected to the bottom end of the support column (7).

6. The automotive bumper welding jig according to claim 4, wherein: The front end of the driving rod (19) penetrates through the inside of the threaded hole (20) and is movably connected to the rear end of the pressing plate (21). External threads are provided on the outside of the driving rod (19).

7. The automotive bumper welding fixture according to claim 1, characterized in that: The bottom end of the clamping seat (8) is fixedly welded with an insertion block (25), a jack (26) is arranged inside the insertion block (25), a second socket (27) is formed inside the top end on the left side of the support column (7), a first socket (10) is formed at the top of the front end of the support column (7), the first socket (10) and the second socket (27) respectively penetrate through the front end and the left side of the support column (7) and are communicated with the inside of the slot (24), and a bolt (9) is inserted into the second socket (27).

8. The automotive bumper welding fixture according to claim 7, wherein: The jack (26) penetrates through the inside of the insertion block (25), and the bolt (9) penetrates through the inside of the jack (26).

Images