Double-station welding positioner

Abstract

The utility model relates to the technical field of welding position changing machines, and discloses a double-station welding position changing machine which comprises position changing machine bodies located on the two sides of a welding robot and a bottom plate connected to the bottoms of the position changing machine bodies. Through mutual cooperation of the mounting plate, the inverted-T-shaped sliding rail, the bottom plate and the sliding groove, under driving of the driving mechanism, the driving mechanism drives the positioner body and the bottom plate to move towards the side far away from the welding robot, the sliding groove in the bottom of the bottom plate slides on the outer side of the inverted-T-shaped sliding rail at the top of the mounting plate, and the positioner body is far away from the welding robot; feeding and discharging are facilitated for workers, and the working danger is reduced; meanwhile, in the moving process of the positioner body, the protective door is moved from one end of the positioner body to the position between the positioner body and the welding robot through the rotating mechanism, and the problem of spark sputtering generated in the welding process of the welding robot on a positioner body workpiece on another station is effectively solved; and the feeding and discharging safety of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding positioners, and specifically relates to a double-station welding positioner. Background Art

[0002] A double-station welding positioner is a device specifically designed to improve welding efficiency and quality. It allows switching between two independent working positions (i.e., two stations), thus enabling continuous operation, reducing waiting time, and optimizing the production process. This type of device is usually equipped with a welding robot to achieve high-efficiency welding work.

[0003] Currently, the patent with the publication number CN216802300U discloses a double-station pneumatic tilting positioner for welding, which includes two sets of tilting positioners with the same structure. The tilting positioner includes a chassis, feet, columns, and a tilting mechanism. The chassis is placed horizontally on the working platform. The feet are symmetrically arranged with respect to the central axis of the chassis and are spaced apart at the bottom end of the chassis. The columns are symmetrically arranged at both ends of the chassis. The columns are parallel to each other and are vertically fixed to the top surface of the chassis. The tilting mechanisms are respectively assembled on the opposite side walls of the columns, and the tilting mechanism plays a role in controlling the flipping of the welded parts. This solution solves multiple problems existing in the prior art, such as improper control of the flipping speed and inaccurate indexing accuracy, ensuring the smooth progress of the welding process, not only realizing full automation of welding, but also greatly improving the batch quality of welded parts.

[0004] The above device solves the problem of improper control of the flipping speed, but still has the following deficiencies:

[0005] When the welding of one side of the station is completed, workers need to disassemble the workpiece and replace it with the next workpiece. However, since the station is relatively close to the welding robot, when workers disassemble the workpiece, they are also relatively close to the welding robot. The welding robot needs to perform actions such as swinging its arm. Workers being close to the welding robot is not convenient for disassembly work and also hides safety problems, thus causing inconvenience. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a double-station welding positioner, which is convenient for workers to load and unload materials while improving safety protection.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A double-station welding positioner includes positioner bodies on both sides of a welding robot and a bottom plate connected to the bottom of the positioner bodies. The bottoms of the bottom plates of the two positioner bodies are both connected with mounting plates. The top surface of the mounting plate is fixedly connected with two symmetrically arranged inverted T-shaped sliding rails. The bottom of the bottom plate is provided with sliding grooves corresponding to the positions of the inverted T-shaped sliding rails. A driving mechanism connected to the bottom plate is connected to the mounting plate. A protective door is connected to one side of the mounting plate, and a steering mechanism is connected to the bottom of the protective door.

[0008] Further, the driving mechanism includes a threaded rod and a rotary motor. The rotary motor is fixedly installed at the middle position on the top surface of the mounting plate near one end of the welding robot. The output end of the rotary motor is fixedly connected to one end of the threaded rod. The threaded rod passes through the bottom plate and is threadedly connected thereto, and its end is rotatably connected to the end of the mounting plate.

[0009] Further, the steering mechanism includes a mounting box. A rotating shaft is rotatably connected inside the mounting box. A vertical rod is fixedly connected to the top of the rotating shaft. The vertical rod is fixedly connected to the protective door. A transmission gear is fixedly sleeved on the outer side of the rotating shaft. One side of the transmission gear is connected with a linkage member.

[0010] Further, the linkage member includes two shaft gears. The transmission shafts of the shaft gears are rotatably connected to the bottom of the inner wall of the mounting box. Pulley wheels are fixedly sleeved on the outer sides of the transmission shafts of the two shaft gears. A transmission belt is connected between the two pulley wheels. One of the shaft gears is meshed with the transmission gear. A rack plate is fixedly connected to the outer wall of the bottom plate. The rack plate is meshed with the other shaft gear.

[0011] Further, roller structures are fixedly connected to both sides of the inner wall of the chute. The roller structure includes a U-shaped plate and a plurality of rollers rotatably connected thereto. The plurality of rollers are slidably and rollingly connected to the outer wall of the inverted T-shaped slide rail.

[0012] Further, the protective door is made of a transparent plate.

[0013] Further, the protective door and the vertical rod are detachably connected.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] Through the mutual cooperation of the mounting plate, the inverted T-shaped slide rail, the bottom plate and the chute, under the drive of the driving mechanism, the driving mechanism drives the turntable body and the bottom plate to move away from the welding robot. The chute at the bottom of the bottom plate slides on the outside of the inverted T-shaped slide rail on the top of the mounting plate, so that the turntable body is far away from the welding robot. At this time, it is convenient for workers to load and unload materials, reducing the working danger. At the same time, when the turntable body is moving, through the rotating mechanism, the protective door moves from one end of the turntable body to between the turntable body and the welding robot, effectively blocking the problem of spark sputtering generated during the welding of the workpiece of the turntable body at another station by the welding robot, improving the safety of workers during loading and unloading. The structure is simple, the operation is convenient, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0017] Figure 2 is a schematic three-dimensional structure diagram of a partial state of the present utility model;

[0018] Figure 3 This is a three-dimensional structure diagram of the protective door of the present utility model in a protective state;

[0019] Figure 4 This is a three-dimensional structure diagram of the partial unfolded state of the present utility model;

[0020] Figure 5 This is a three-dimensional structure diagram of the shaft gear and the transmission gear of the present utility model;

[0021] Figure 6 This is a three-dimensional structure diagram of the roller structure and the inverted T-shaped slide rail of the present utility model.

[0022] In the figure: 1, positioner body; 2, bottom plate; 3, welding robot; 4, mounting plate; 5, inverted T-shaped slide rail; 6, protective door; 7, mounting box; 8, shaft gear; 9, rack plate; 10, threaded rod; 11, rotating motor; 12, vertical rod; 13, chute; 14, roller structure; 15, rotating shaft; 16, transmission gear; 17, pulley; 18, transmission belt. Specific embodiments

[0023] 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.

[0024] As Figures 1 to 6 shown, a double-station welding positioner includes a positioner body 1 on both sides of the welding robot 3 and a bottom plate 2 connected to the bottom of the positioner body 1. The bottoms of the bottom plates 2 of the two positioner bodies 1 are both connected with a mounting plate 4. The top surface of the mounting plate 4 is fixedly connected with two symmetrically arranged inverted T-shaped slide rails 5. A chute 13 corresponding to the position of the inverted T-shaped slide rail 5 is opened at the bottom of the bottom plate 2. A driving mechanism connected to the bottom plate 2 is connected to the mounting plate 4. A protective door 6 is connected to one side of the mounting plate 4, and a steering mechanism is connected to the bottom of the protective door 6.

[0025] As Figure 1 shown, the double-station welding positioner in the present utility model is similar in structure to the existing double-station pneumatic tilting positioner for welding. For example, the patent with the publication number CN216802300U discloses a double-station pneumatic tilting positioner for welding. The main improvement of the present utility model is to facilitate the loading and unloading of workers while improving safety protection. As Figures 1 to 6As shown in the figure, when the double-station welding positioner of the present utility model is in use, after the welding robot 3 completes the welding of one of the positioner bodies 1 of the station, at this time, the driving mechanism is started, and the driving mechanism drives the positioner body 1 and the bottom plate 2 to move away from the welding robot 3 side, so that the sliding groove 13 at the bottom of the bottom plate 2 slides outside the inverted T-shaped slide rail 5 at the top of the mounting plate 4, so that the positioner body 1 is far away from the welding robot 3. At this time, it is convenient for workers to load and unload materials, reducing the danger of work; at the same time, when the positioner body 1 is moving, the protection door 6 is moved from one end of the positioner body 1 to between the positioner body 1 and the welding robot 3 through the rotating mechanism, effectively blocking the problem of spark sputtering generated during the welding process of the workpiece of the positioner body 1 on the other station by the welding robot 3, and improving the safety of workers during loading and unloading.

[0026] As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, the driving mechanism includes a threaded rod 10 and a rotating motor 11. The rotating motor 11 is fixedly installed at the middle position of the top surface of the mounting plate 4 near the welding robot 3. The output end of the rotating motor 11 is fixedly connected to one end of the threaded rod 10. The threaded rod 10 passes through the bottom plate 2 and is threadedly connected thereto, and its end is rotatably connected to the end of the mounting plate 4.

[0027] Specifically, when the driving mechanism is started, the output end of the rotating motor 11 will rotate the threaded rod 10. The threaded rod 10 is threadedly connected to the bottom plate 2. Under the restriction of the inverted T-shaped slide rail 5, the positioner body 1 moves. After the blanking and material changing are completed, the rotating motor 11 can be reversed to make the positioner body 1 return to its original position, so that the welding robot 3 can continue to carry out the welding work. At the same time, the positioner body 1 of the other station also moves, and the worker can load and unload the workpiece on the other group of positioner bodies 1.

[0028] As Figure 2 and Figure 5 As shown in the figure, the steering mechanism includes a mounting box 7. A rotating shaft 15 is rotatably connected inside the mounting box 7. A vertical rod 12 is fixedly connected to the top of the rotating shaft 15. The vertical rod 12 is fixedly connected to the protection door 6. A transmission gear 16 is fixedly sleeved on the outside of the rotating shaft 15, and a linkage is connected to one side of the transmission gear 16.

[0029] As Figure 2 and Figure 5 As shown in the figure, the linkage includes two shaft gears 8. The transmission shafts of the shaft gears 8 are rotatably connected to the bottom of the inner wall of the mounting box 7. Pulley 17 is fixedly sleeved on the outside of the transmission shafts of the two shaft gears 8. A transmission belt 18 is connected between the two pulleys 17. One of the shaft gears 8 is meshed with the transmission gear 16. A rack plate 9 is fixedly connected to the outer wall of the bottom plate 2. The rack plate 9 is meshed with the other shaft gear 8.

[0030] Specifically, when the positioner body 1 is moving, the rack plate 9 will engage with one of the shaft gears 8, driving the transmission shaft of the shaft gear 8 and the pulley 17 outside the transmission shaft to rotate. The rotation of the pulley 17 will cause the transmission belt 18 to transmit, thereby causing the other pulley 17 to rotate. At the same time, the shaft gear 8 on this pulley 17 is driven to rotate. The shaft gear 8 will engage and transmit with the transmission gear 16, thereby driving the rotating shaft 15 and the vertical rod 12 to rotate, and further driving the protective door 6 to rotate;

[0031] When the positioner body 1 approaches the welding robot 3, the protective door 6 is just located at the end of the bottom plate 2 of the positioner body 1. When the positioner body 1 moves to the side away from the welding robot 3, the protective door 6 is coordinated by the linkage and the steering mechanism, causing the protective door 6 to rotate to a position between the welding robot 3 and the positioner body 1;

[0032] The protective door 6 can effectively block the problem of spark sputtering generated by the welding robot 3 when welding workpieces on another working station, improving the safety of workers during loading and unloading; with the setting of the steering mechanism on the protective door 6, the protective door 6 will not hinder the normal welding work of the welding robot 3. When protection is required, the movement of the positioner body 1 enables the rotation of the protective door 6, eliminating the need for manual operation and realizing the functions of automatic rotation and protection.

[0033] Such as Figure 3 and Figure 6 As shown, both sides of the inner wall of the chute 13 are fixedly connected with roller structures 14. The roller structure 14 includes a U-shaped plate and several rollers rotatably connected. The several rollers are slidably and rollingly connected to the outer wall of the inverted T-shaped slide rail 5.

[0034] Specifically, when the positioner body 1 moves, the roller structure 14 will slide on the outside of the inverted T-shaped slide rail 5, enabling the rollers to convert the original sliding friction with the inverted T-shaped slide rail 5 into rolling friction, improving the smoothness of the positioner body 1 during movement.

[0035] Such as Figure 1 、 Figure 2 and Figure 3 As shown, the protective door 6 is provided as a transparent plate. The transparent plate setting can improve the observation line of sight.

[0036] Such as Figure 5 As shown, the protective door 6 and the vertical rod 12 are detachably connected. This facilitates the installation and disassembly of the protective door 6.

[0037] In the above structure, the rotary motor 11 is an existing mature technology, so no more details will be described here.

[0038] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double-station welding positioner, comprising a positioner body (1) located on both sides of a welding robot (3) and a bottom plate (2) connected to the bottom of the positioner body (1), characterized in that, At the bottom of the base plates (2) of the two positioner bodies (1), mounting plates (4) are connected. On the top surface of the mounting plate (4), two symmetrically arranged inverted T-shaped sliding rails (5) are fixedly connected. A sliding groove (13) corresponding to the position of the inverted T-shaped sliding rail (5) is formed at the bottom of the base plate (2). A driving mechanism connected to the base plate (2) is connected to the mounting plate (4). A protective door (6) is connected to one side of the mounting plate (4), and a steering mechanism is connected to the bottom of the protective door (6).

2. The dual-station welding positioner according to claim 1, characterized in that, The driving mechanism includes a threaded rod (10) and a rotary motor (11). The rotary motor (11) is fixedly installed at the middle position of the top surface of the mounting plate (4) near one end of the welding robot (3). The output end of the rotary motor (11) is fixedly connected to one end of the threaded rod (10). The threaded rod (10) passes through the base plate (2) and is threadedly connected thereto, and its end is rotatably connected to the end of the mounting plate (4).

3. A double-station welding positioner according to claim 1 or 2, characterized in that, The steering mechanism includes a mounting box (7). A rotating shaft (15) is rotatably connected inside the mounting box (7). A vertical rod (12) is fixedly connected to the top of the rotating shaft (15). The vertical rod (12) is fixedly connected to the protective door (6). A transmission gear (16) is fixedly sleeved on the outer side of the rotating shaft (15), and a linkage member is connected to one side of the transmission gear (16).

4. A two-station welding positioner according to claim 3, characterized in that, The linkage member includes two shaft gears (8). The transmission shafts of the shaft gears (8) are rotatably connected to the bottom inner wall of the mounting box (7). Pulley wheels (17) are fixedly sleeved on the outer sides of the transmission shafts of the two shaft gears (8). A transmission belt (18) is connected between the two pulley wheels (17). One of the shaft gears (8) is meshed with the transmission gear (16). A rack plate (9) is fixedly connected to the outer wall of the base plate (2), and the rack plate (9) is meshed with the other shaft gear (8).

5. A two-station welding positioner according to claim 1, 2 or 4, characterized in that, On both sides of the inner wall of the sliding groove (13), roller structures (14) are fixedly connected. The roller structure (14) includes a U-shaped plate and a number of rollers rotatably connected. The number of rollers is slidably and rollingly connected to the outer wall of the inverted T-shaped sliding rail (5).

6. A two-station welding positioner according to claim 1, 2 or 4, characterized in that, The protective door (6) is made of a transparent plate.

7. A two-station welding positioner according to claim 3, characterized in that, The protective door (6) is detachably connected to the vertical rod (12).

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