Movable double-shaft positioner with good stability

Abstract

The utility model relates to the technical field of double-shaft position changing machines, and discloses a movable double-shaft position changing machine with good stability, which comprises a position changing machine body arranged on a guide rail, the inner wall of the guide rail is connected with a lead screw, two ends of the bottom surface of the position changing machine body are fixedly connected with sliding seats, and the two sliding seats are sleeved outside the lead screw and are in threaded connection with the lead screw. A moving groove is formed in one side of the guide rail in a penetrating mode, and a power mechanism is connected to the end, close to the moving groove, of one sliding base and located outside the moving groove. According to the movable type double-shaft position changing machine with good stability, after the movable type double-shaft position changing machine moves left and right along with a lead screw and moves to a designated position, a power mechanism drives a transmission assembly, the transmission assembly drives a moving assembly, and the moving assembly drives an extrusion assembly to extrude the inner wall of a guide rail; therefore, the problems that at present, a positioner body slightly shakes on a sliding rail and a lead screw due to a slight space, errors occur in workpiece welding, and even welding failure and reworking are caused can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-axis positioners, and specifically relates to a mobile double-axis positioner with good stability. Background Art

[0002] A double-axis positioner is an industrial device mainly used to change the position of workpieces during welding, assembly, and machining processes. This machine usually has two rotating axes and can rotate the workpiece in different directions to achieve the required positioning.

[0003] Currently, there is a mobile double-axis positioner, which refers to a double-axis positioner that can move when installed on a guide rail or other supporting structures. This type of positioner is designed to facilitate movement between different workstations to meet different processing requirements.

[0004] When the current mobile double-axis positioner moves on the guide rail, it mostly drives the screw to rotate through a motor, and then the screw drives the base or slider at the lower end of the mobile double-axis positioner to move along the direction of the guide rail until it stops at a suitable position.

[0005] However, when the base of the mobile double-axis positioner moves along the guide rail, there will inevitably be a certain space between the base and the guide rail, and there is also a certain movement space between the screw and the base. Both of these are likely to cause the mobile double-axis positioner to stand unsteadily. When the workpiece is welded by the robotic arm later, it is very likely that due to slight shaking, the welding of the workpiece will have errors, or even lead to welding failure and rework. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a mobile double-axis positioner with good stability to solve the problems that the current positioner body has slight shaking due to slight space on the slide rail and the screw, resulting in errors in workpiece welding, or even welding failure and rework.

[0007] To achieve the above object, the utility model provides the following technical solution: A mobile double-axis positioner with good stability, including a positioner body installed on a guide rail, a screw is connected to the inner wall of the guide rail, both ends of the bottom surface of the positioner body are fixedly connected with sliding seats, and both sliding seats are sleeved and threadedly connected to the outside of the screw. A moving groove is penetrated and opened on one side of the guide rail, and one end of one sliding seat close to the moving groove is connected with a power mechanism. The power mechanism is located outside the moving groove, the output end of the power mechanism is connected with a transmission component, the other two ends of the transmission component are both connected with moving components, the other ends of the two moving components both penetrate the moving groove and are respectively connected to the sides of the two sliding seats away from each other, and two extrusion components are connected to the outer walls of the two moving components, and the other ends of the two extrusion components are respectively abutted against both sides of the inner wall of the guide rail.

[0008] Furthermore, the power mechanism includes a support frame and a transmission motor. One end of the support frame is fixedly connected to the outer wall of one end of one of the sliding seats. The other end of the support frame penetrates through the moving groove and is fixedly connected to the outer wall of the transmission motor. The output shaft of the transmission motor is connected to the transmission component.

[0009] Furthermore, the transmission component includes a chain and two sprockets. One of the sprockets is fixedly connected to the output shaft of the transmission motor. The other ends of the two sprockets are respectively connected to one ends of the two moving components located outside the moving groove. The chain is sleeved on the outer walls of the two sprockets and meshes with both sprockets.

[0010] Furthermore, the moving component includes a bidirectional lead screw and two support blocks. One ends of the two support blocks are respectively fixedly connected to both ends of the side wall of the sliding seat. The bidirectional lead screw penetrates through the two support blocks, the extrusion component, the moving groove and one of the sprockets. The outer wall of the bidirectional lead screw is fixedly connected to the inner wall of the sprocket. Both ends of the bidirectional lead screw are rotatably connected to the inner walls of the two support blocks.

[0011] Furthermore, the extrusion component includes a moving block and an extrusion block. One end of the moving block is sleeved and threadedly connected to the outer wall of the bidirectional lead screw. The other end of the moving block is fixedly connected to one end of the extrusion block. The other end of the extrusion block abuts against the inner wall of the guide rail. The side wall of the moving block is slidably connected to the side wall of the sliding seat.

[0012] Furthermore, a pressure sensor is fixedly connected inside the extrusion block.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] For this kind of mobile biaxial positioner with good stability, by arranging a power mechanism, a transmission component, two moving components and four extrusion components on the two sliding seats of the positioner body, when the positioner body moves left and right following the lead screw and reaches the designated position, the power mechanism drives the transmission component, the transmission component drives the moving component, and the moving component drives the extrusion component to extrude against the inner wall of the guide rail, thereby solving the problem that the positioner body currently has slight shaking on the slide rail and the lead screw due to slight space, resulting in errors in workpiece welding, and even leading to welding failure and rework. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall external view schematic diagram of the present utility model;

[0016] Figure 2 is the partial sectional view schematic diagram of the guide rail of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 the enlarged schematic diagram at A in;

[0018] Figure 4 This is a detailed connection schematic diagram of components such as the power mechanism, transmission assembly, and moving assembly of the present utility model.

[0019] In the figure: 1, guide rail; 2, body of the positioner; 3, support frame; 4, drive motor; 5, sprocket; 6, chain; 7, bidirectional lead screw; 8, sliding seat; 9, lead screw; 10, support block; 11, moving block; 12, extrusion block; 13, pressure sensor; 101, moving groove. Specific embodiments

[0020] 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.

[0021] Please refer to Figures 1-4 , a mobile double-axis positioner with good stability, including a positioner body 2 installed on a guide rail 1. A lead screw 9 is connected to the inner wall of the guide rail 1. Both ends of the bottom surface of the positioner body 2 are fixedly connected with sliding seats 8. Both sliding seats 8 are sleeved and threadedly connected to the outside of the lead screw 9. A moving groove 101 is penetrated and opened on one side of the guide rail 1. One end of one sliding seat 8 close to the moving groove 101 is connected with a power mechanism. The power mechanism is located outside the moving groove 101. The output end of the power mechanism is connected with a transmission assembly. The other two ends of the transmission assembly are both connected with moving assemblies. The other ends of the two moving assemblies both penetrate the moving groove 101 and are respectively connected to the sides of the two sliding seats 8 away from each other. And two extrusion assemblies are connected to the outer walls of the two moving assemblies. The other ends of the two extrusion assemblies respectively abut against both sides of the inner wall of the guide rail 1.

[0022] As Figures 1 to 4 shown, after the mobile double-axis positioner with good stability in the present utility model moves left and right following the lead screw 9 and moves to a specified position, the power mechanism is turned on through an external controller (this is prior art, so no detailed description is given here). After the power mechanism starts, the output end drives the transmission assembly to rotate. After the transmission assembly rotates, it will drive the two moving assemblies to rotate. After the two moving assemblies rotate, the two sets of extrusion assemblies connected to their respective surfaces can be moved towards both ends at the same time. As the two extrusion assemblies move, they will gradually squeeze against the inner wall of the guide rail 1 until they are tightly squeezed, thereby solving the problem that the positioner body 2 currently has slight shaking on the guide rail 1 and the lead screw 9 due to slight space, resulting in errors in workpiece welding, and even welding failure and rework.

[0023] As Figure 1 and Figure 4As shown in the figure, the power mechanism includes a support frame 3 and a drive motor 4. One end of the support frame 3 is fixedly connected to the outer wall of one end of one of the sliding seats 8. The other end of the support frame 3 penetrates through the moving groove 101 and is fixedly connected to the outer wall of the drive motor 4. The output shaft of the drive motor 4 is connected to the transmission component.

[0024] More specifically, when the positioner body 2 moves to the designated position and needs to be limited to keep it stable, just turn on the drive motor 4 through the external controller. After the drive motor 4 starts, the output shaft can drive the transmission component to rotate.

[0025] As Figure 1 and Figure 4 shown in the figure, the transmission component includes a chain 6 and two sprockets 5. One of the sprockets 5 is fixedly connected to the output shaft of the drive motor 4. The other ends of the two sprockets 5 are respectively connected to one ends of the two moving components located outside the moving groove 101. The chain 6 is sleeved on the outer walls of the two sprockets 5 and meshes with both sprockets 5.

[0026] More specifically, when the output shaft of the drive motor 4 rotates, it can drive the connected sprocket 5 to rotate. After this sprocket 5 rotates, it can drive the chain 6 and the other sprocket 5 to rotate together. Then the two sprockets 5 can drive the two moving components to rotate.

[0027] As Figures 2-4 shown in the figure, the moving component includes a bidirectional lead screw 7 and two support blocks 10. One ends of the two support blocks 10 are respectively fixedly connected to both ends of the side wall of the sliding seat 8. The bidirectional lead screw 7 penetrates through the two support blocks 10, the extrusion component, the moving groove 101 and one of the sprockets 5. The outer wall of the bidirectional lead screw 7 is fixedly connected to the inner wall of the sprocket 5. Both ends of the bidirectional lead screw 7 are rotatably connected to the inner walls of the two support blocks 10.

[0028] More specifically, when the sprocket 5 rotates, it can drive the internal bidirectional lead screw 7 to rotate. After the bidirectional lead screw 7 rotates, it can drive the two extrusion components connected to its surface to move outward simultaneously.

[0029] As Figure 4 shown in the figure, the extrusion component includes a moving block 11 and an extrusion block 12. One end of the moving block 11 is sleeved and threadedly connected to the outer wall of the bidirectional lead screw 7. The other end of the moving block 11 is fixedly connected to one end of the extrusion block 12. The other end of the extrusion block 12 abuts against the inner wall of the guide rail 1. The side wall of the moving block 11 is slidably connected to the side wall of the sliding seat 8.

[0030] More specifically, when the bidirectional lead screw 7 rotates, the moving block 11 sleeved outside it can move along the bidirectional lead screw 7. During its movement, the extrusion block 12 is extruded against the inner wall of the guide rail 1, thereby filling the slight gaps between the positioner body 2, the guide rail 1 and the lead screw 9, reducing the vibration generated during the machining of the upper positioner body 2, and thus increasing the overall stability of the positioner body 2.

[0031] As Figure 4 shown, a pressure sensor 13 is fixedly connected inside the extrusion block 12.

[0032] More specifically, by setting the pressure sensor 13, only need to measure the extrusion force in advance, and then set the pressure value on the PLC controller. When the pressure sensor 13 monitors that the appropriate extrusion force is reached, immediately turn off the drive motor 4, thereby avoiding the deformation of the extrusion block 12 and the guide rail 1 caused by excessive pressure.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile double-axis positioner with good stability, including a positioner body (2) installed on a guide rail (1), and a lead screw (9) is connected to the inner wall of the guide rail (1), characterized in that: Both ends of the bottom surface of the turntable body (2) are fixedly connected with sliding seats (8). Both sliding seats (8) are sleeved and threadedly connected to the outside of the lead screw (9). A moving groove (101) is formed through one side of the guide rail (1). One end of one sliding seat (8) close to the moving groove (101) is connected with a power mechanism. The power mechanism is located outside the moving groove (101). The output end of the power mechanism is connected with a transmission component. The other two ends of the transmission component are both connected with moving components. The other ends of the two moving components both penetrate through the moving groove (101) and are respectively connected to the sides of the two sliding seats (8) away from each other. The outer walls of the two moving components are both connected with two pressing components. The other ends of the two pressing components respectively abut against both sides of the inner wall of the guide rail (1).

2. The mobile biaxial positioner with good stability according to claim 1, characterized in that: The power mechanism includes a support frame (3) and a transmission motor (4). One end of the support frame (3) is fixedly connected to the outer wall of one end of one sliding seat (8). The other end of the support frame (3) penetrates through the moving groove (101) and is fixedly connected to the outer wall of the transmission motor (4). The output shaft of the transmission motor (4) is connected with the transmission component.

3. The mobile biaxial positioner with good stability according to claim 2, characterized in that: The transmission component includes a chain (6) and two sprockets (5). One of the sprockets (5) is fixedly connected to the output shaft of the transmission motor (4). The other ends of the two sprockets (5) are respectively connected to one ends of the two moving components located outside the moving groove (101). The chain (6) is sleeved on the outer walls of the two sprockets (5) and meshes with both sprockets (5).

4. The mobile biaxial positioner with good stability according to claim 3, characterized in that: The moving component includes a bidirectional lead screw (7) and two support blocks (10). One ends of the two support blocks (10) are respectively fixedly connected to both ends of the side wall of the sliding seat (8). The bidirectional lead screw (7) penetrates through the two support blocks (10), the pressing component, the moving groove (101) and one of the sprockets (5). The outer wall of the bidirectional lead screw (7) is fixedly connected to the inner wall of the sprocket (5). Both ends of the bidirectional lead screw (7) are respectively rotatably connected to the inner walls of the two support blocks (10).

5. A mobile double-axis positioner with good stability according to claim 4, characterized in that: The pressing component includes a moving block (11) and a pressing block (12). One end of the moving block (11) is sleeved and threadedly connected to the outer wall of the bidirectional lead screw (7). The other end of the moving block (11) is fixedly connected to one end of the pressing block (12). The other end of the pressing block (12) abuts against the inner wall of the guide rail (1). The side wall of the moving block (11) is slidably connected to the side wall of the sliding seat (8).

6. The mobile biaxial positioner with good stability according to claim 5, characterized in that: A pressure sensor (13) is fixedly connected inside the pressing block (12).

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