Welding positioning mechanism for automobile welding production line

Abstract

The utility model relates to the technical field of automobile welding, and discloses a welding positioning mechanism of an automobile welding production line, which comprises a bottom mounting seat, a side mounting plate, a motor, a clamp base and a main screw rod, the side mounting plate is mounted at the top end of the bottom mounting seat, the motor is mounted in the side mounting plate, the clamp base is mounted at the top end of the motor, and the main screw rod is mounted on the clamp base. The main screw rod is installed at the output end of the motor, the locking assembly is arranged at the output end of the motor in a sleeving mode, a plurality of locking grooves matched with the locking assembly are formed in the end, close to the motor, of the main screw rod in the circumferential direction of the center line of the main screw rod, a side adjusting screw rod is installed on the clamp base, and a pressing block matched with the locking assembly is installed on the side adjusting screw rod. Compared with the prior art, the welding positioning mechanism of the automobile welding production line has the advantages that the locking assembly slides along the output end of the motor, the end, close to the motor, of the main screw rod is locked, and the output end of the motor cannot be inclined or deviated due to the fact that radial force cannot be applied to the output end of the motor.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile welding assembly, and specifically, to a welding positioning mechanism for an automobile welding assembly production line. Background Art

[0002] With the economic development, the development and improvement of transportation roads, people's consumption levels have gradually increased. More and more automobiles have entered thousands of households, and private cars have become the means of transportation in people's daily lives, greatly improving people's travel efficiency and bringing a lot of convenience to people's lives and work.

[0003] Chinese patent application document CN220825613U discloses a welding positioning mechanism for an automobile welding assembly production line, including a mounting base, a mounting plate, a motor, a fixture base and a screw rod. The side surface of the mounting base is fixedly installed with a mounting plate, the interior of the mounting plate is provided with a motor, and the side surface of the fixture base is penetrated and installed with a set screw rod. For this welding positioning mechanism of the automobile welding assembly production line, when the positioning pin is inserted into the positioning hole provided on the outer surface of the sheet metal part, the outer surfaces of the first cushion block and the second cushion block provided at the upper end of the mounting plate are in contact with the sheet metal part. At this time, the motor rotates to drive the screw rod to rotate, the screw rod rotates to drive the nut seat upward, and the connecting rod moves upward to make the first clamping seat rod and the second clamping seat rod perform a shearing motion, opening and clamping the positioning hole of the sheet metal part. Then, the worker tightens the set screw rod on one side of the fixture base to fix the fixed wheel, so that the first clamping seat rod and the second clamping seat rod remain open to fix the sheet metal part and prevent it from falling off.

[0004] Paragraph

[0017] of the disclosed patent specification discloses that "the worker tightens the set screw rod on one side of the fixture base to fix the fixed wheel located on the outer surface of the motor output shaft, so that the first clamping seat rod and the second clamping seat rod remain open to fix the sheet metal part and prevent it from falling off". The fixing degree of the set screw rod to the fixed wheel is judged by the effort of the worker to tighten the set screw rod. In this way, if the worker tightens too much, because the set screw rod points to the center line direction of the fixed wheel, the set screw rod presses against the fixed wheel excessively, resulting in the inclination and deviation of the motor output shaft connected to the fixed wheel. Summary of the Utility Model

[0005] To improve the above problems, the utility model discloses a welding positioning mechanism for an automobile welding assembly production line, including a bottom mounting seat, a side mounting plate, a motor, a fixture base and a main screw rod. The side mounting plate is installed at the top of the bottom mounting seat, the motor is installed inside the side mounting plate, the fixture base is installed at the top of the motor, and the main screw rod is installed at the output end of the motor. It further includes: a locking assembly sleeved on the output end of the motor; a plurality of locking grooves adapted to the locking assembly are circumferentially opened along the center line of the main screw rod near the motor end; a side adjusting screw rod is installed on the fixture base, and a pressing block adapted to the locking assembly is installed on the side adjusting screw rod.

[0006] Preferably, the pressing block is arranged in a frustum shape, and the inclined surface end of the pressing block abuts against the locking component.

[0007] Preferably, a turning handle is installed at the end of the side adjustment screw rod away from the pressing block.

[0008] Preferably, the locking component includes:

[0009] A fixed ring seat, which is fixedly sleeved on the output end of the motor;

[0010] Top mounting grooves, several top mounting grooves are circumferentially opened at the top end of the fixed ring seat, the opening direction of each top mounting groove points to the center end of the fixed ring seat, and the top mounting grooves communicate with the inner and outer walls of the fixed ring seat;

[0011] A locking block, the locking block is arranged in a fan shape, and the locking block is connected to the top mounting groove through a mounting shaft;

[0012] An upper pressing cover, the inner wall of the upper pressing cover is arranged in a converging manner from bottom to top, the locking block abuts against the inner wall of the upper pressing cover, the upper pressing cover is sleeved on the main screw rod near the motor end, and an inclined platform adapted to the inclined surface end of the pressing block is circumferentially opened at a position near the edge of the top end of the upper pressing cover.

[0013] Preferably, a return spring is sleeved on the main screw rod near the motor end, and the return spring abuts between the inner top of the upper pressing cover and the top end of the fixed ring seat.

[0014] Preferably, a return winding spring is installed on the mounting shaft.

[0015] Preferably, the thickness of the locking block is equal to the width of the locking groove, and the thickness of the locking block at the end away from the upper pressing cover is gradually thinned.

[0016] Compared with the prior art, the present utility model has the following advantages:

[0017] For a welding positioning mechanism of an automobile welding production line provided by the present utility model, when a worker rotates the side adjustment screw rod, the lateral force of the side adjustment screw rod is transmitted to the upper pressing cover through the pressing block, and thus is converted into an action along the direction of the output end of the motor, and further, no radial force is applied to the output end of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 1 It is a structural schematic diagram of the present utility model;

[0020] Figure 2 For Figure 1 Enlarged view of reference numeral A in the figure (when the pressing block does not press down the upper pressing cover);

[0021] Figure 3 It is a schematic diagram of the lock block of the present utility model limiting the main screw (when the pressing block presses down the upper pressing cover).

[0022] In the figure: 10. Bottom mounting base; 11. Side mounting plate; 12. Motor; 13. Fixture base; 14. Main screw; 15. Locking groove; 16. Side adjusting screw; 17. Pressing block; 18. Rotating hand; 19. Fixed ring seat; 20. Top mounting groove; 21. Lock block; 22. Upper pressing cover; 23. Inclined table; 24. Return spring; 25. Return coil spring. Specific implementation manner

[0023] Next, the technical solution of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment

[0025] Next, the present utility model will be further described in conjunction with the accompanying drawings.

[0026] As Figures 1 to 3 shown, a welding positioning mechanism for an automobile welding production line provided in this embodiment includes a bottom mounting base 10, a side mounting plate 11, a motor 12, a fixture base 13, and a main screw 14. The side mounting plate 11 is installed at the top of the bottom mounting base 10, the motor 12 is installed inside the side mounting plate 11, the fixture base 13 is installed at the top of the motor 12, the main screw 14 is installed at the output end of the motor 12, and further includes: a locking assembly sleeved on the output end of the motor 12, a plurality of locking grooves 15 adapted to the locking assembly are circumferentially formed along the center line of the main screw 14 near the motor 12 end, a side adjusting screw 16 is installed on the fixture base 13, and a pressing block 17 adapted to the locking assembly is installed on the side adjusting screw 16.

[0027] The working principle and beneficial effects of the above technical solution are as follows:

[0028] The utility model discloses a welding positioning mechanism for an automobile welding production line. Workers rotate the side adjusting screw 16 installed on the fixture base 13, thereby driving the pressing block 17 installed on the side adjusting screw 16 to move towards the direction close to the locking component. The locking component moves towards the direction close to the motor 12 along the output end of the motor 12 (i.e., the output shaft of the motor 12), and through the cooperation with the locking groove 15, the locking of the main screw 14 near the motor 12 end is completed. The welding positioning mechanism for an automobile welding production line provided by the utility model, compared with the prior art, the locking component slides along the output end of the motor 12 to complete the locking of the main screw 14 near the motor 12 end. Because no radial force is applied to the output end of the motor 12, the tilting offset of the output end of the motor 12 will not be caused.

[0029] In one embodiment, the pressing block 17 is arranged in a frustum shape, and the inclined surface end of the pressing block 17 abuts against the locking component.

[0030] The working principle and beneficial effects of the above technical solution are as follows:

[0031] The pressing block 17 is designed in a frustum shape. In this way, when the side adjusting screw 16 drives the pressing block 17 to rotate, the inclined surface end of the pressing block 17 can always abut against the locking component, thereby driving the action of the locking component.

[0032] In one embodiment, a turning handle 18 is installed at the end of the side adjusting screw 16 away from the pressing block 17.

[0033] The beneficial effect of the above technical solution is as follows:

[0034] The setting of the turning handle 18 facilitates workers to rotate the side adjusting screw 16.

[0035] In one embodiment, the locking component includes:

[0036] A fixed ring seat 19, which is fixedly sleeved on the output end of the motor 12;

[0037] A top mounting groove 20, several top mounting grooves 20 are circumferentially opened at the top end of the fixed ring seat 19, and the opening direction of each top mounting groove 20 is set to point to the center end of the fixed ring seat 19. The top mounting groove 20 communicates with the inner and outer walls of the fixed ring seat 19;

[0038] A locking block 21, which is arranged in a fan shape, and the locking block 21 is connected to the top mounting groove 20 through a mounting shaft;

[0039] An upper pressing cover 22, the inner wall of the upper pressing cover 22 is arranged in a converging shape from bottom to top. The locking block 21 abuts against the inner wall of the upper pressing cover 22. The upper pressing cover 22 is sleeved on the main screw 14 near the motor 12 end, and an inclined platform 23 adapted to the inclined surface end of the pressing block 17 is circumferentially opened at a position near the edge at the top end of the upper pressing cover 22.

[0040] Wherein, a return spring 24 is sleeved on the main screw rod 14 near the motor 12 end, and the return spring 24 abuts between the inner top of the upper pressing cover 22 and the top end of the fixed ring seat 19.

[0041] Wherein, a return winding spring 25 is installed on the installation shaft.

[0042] The working principle and beneficial effects of the above technical solution are as follows:

[0043] The side adjusting screw rod 16 is threadedly connected to the fixture base 13. When the worker manually rotates the side adjusting screw rod 16, the pressing block 17 installed on the side adjusting screw rod 16 moves towards the direction close to the main screw rod 14. Although the pressing block 17 rotates synchronously with the rotation of the side adjusting screw rod 16, because the pressing block 17 is designed as a frustum of a cone, the inclined surface end of the pressing block 17 can always abut against the inclined table 23. The pressing block 17 presses the inclined table 23, thereby driving the upper pressing cover 22 to move in the contracting direction of the return spring 24. With the cooperation of the inner wall of the upper pressing cover 22, the locking block 21 installed in the top installation groove 20 is driven to flip around the installation shaft, and the locking block 21 is gradually fed into the locking groove 15, so as to complete the locking of the main screw rod 14 near the motor 12 end by the locking block 21.

[0044] On the contrary, when it is necessary to release the locking of the screw rod 14 near the motor 12 end, rotate the side adjusting screw rod 16 in the reverse direction, drive the pressing block 17 installed on the side adjusting screw rod 16 to move away from the main screw rod 14, the pressing block 17 releases the pressing on the pressing inclined table 23. Under the reset of the return spring 24, the upper pressing cover 22 moves in the extending direction of the return spring 24, the inner wall of the upper pressing cover 22 releases the pressing on the locking block 21. Under the reset of the return winding spring 25, the locking block 21 disengages from the locking groove 15 and returns to the top installation groove 20 again, so as to release the locking of the main screw rod 14 near the motor 12 end by the locking block 21.

[0045] In this way, when the worker rotates the side adjusting screw rod 16, the lateral force of the side adjusting screw rod 16 is transmitted to the upper pressing cover 22 through the pressing block 17, and thus is converted into an action along the output end direction of the motor 12, and further does not apply a radial force to the output end of the motor 12.

[0046] In one embodiment, the thickness of the locking block 21 is equal to the width of the locking groove 15, and the thickness of the locking block 21 at the end far from the upper pressing cover 22 is gradually thinned.

[0047] The working principle and beneficial effects of the above technical solution are as follows:

[0048] The thickness of the locking block 21 at the end close to the locking groove 15 is thinned, which is convenient for the locking block 21 to be fed into the locking groove 15.

[0049] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to exhaustively list all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A welding positioning mechanism for an automobile welding production line, comprising a bottom mounting seat (10), a side mounting plate (11), a motor (12), a fixture base (13) and a main screw (14), wherein the side mounting plate (11) is mounted on the top of the bottom mounting seat (10), the motor (12) is mounted in the side mounting plate (11), the fixture base (13) is mounted on the top of the motor (12), and the main screw (14) is mounted on the output end of the motor (12), characterized in that: Also includes: Set A locking assembly is arranged at the output end of the motor (12); a main screw (14) is provided with a plurality of locking grooves (15) adapted to the locking assembly along the circumference of its center line near the end of the motor (12); a side adjustment screw (16) is installed on the clamp base (13); and a pressing block (17) adapted to the locking assembly is installed on the side adjustment screw (16).

2. The welding positioning mechanism for an automobile welding production line according to claim 1, characterized in that: The pressing block (17) is arranged in a truncated cone shape, and the inclined surface end of the pressing block (17) is in contact with the locking assembly.

3. The welding positioning mechanism for an automobile welding production line according to claim 1, characterized in that: A handle (18) is installed at the end of the side adjusting screw rod (16) away from the pressing block (17).

4. The welding positioning mechanism for an automobile welding production line according to claim 1, characterized in that: The locking assembly comprises: a fixed ring seat (19) fixedly sleeved on the output end of the motor (12); a plurality of top mounting grooves (20) circumferentially opened on the top end of the fixed ring seat (19), the slotting direction of each top mounting groove (20) pointing to the central end of the fixed ring seat (19), and the top mounting groove (20) communicating with the inner and outer walls of the fixed ring seat (19); a locking block (21) arranged in a fan shape, the locking block (21) being connected to the top mounting groove (20) through a mounting shaft; the inner wall of the upper pressing cover (22) being arranged in a closed-end type from bottom to top, the locking block (21) being abutted against the inner wall of the upper pressing cover (22), the upper pressing cover (22) being sleeved on the end of the main screw (14) close to the motor (12), and a ramp (23) adapted to the inclined surface end of the pressing block (17) being circumferentially opened on the top end of the upper pressing cover (22) close to the edge.

5. The welding positioning mechanism for an automobile welding production line according to claim 4, characterized in that: A return spring (24) is provided at the end sleeve of the main screw (14) close to the motor (12), and the return spring (24) is arranged between the top of the upper pressing cover (22) and the top of the fixed ring seat (19).

6. The welding positioning mechanism for an automobile welding production line according to claim 4, characterized in that: A return coil spring (25) is installed on the installation shaft.

7. The welding positioning mechanism for an automobile welding production line according to claim 4, characterized in that: The thickness of the locking block (21) is equal to the width of the locking groove (15), and the thickness of the locking block (21) gradually becomes thinner at the end away from the upper pressing cover (22).

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