Single-shaft three-station positioner

Abstract

The utility model relates to the technical field of welding auxiliary equipment, in particular to a single-shaft three-station positioner which comprises a base, a workbench installed on the top of the base, a rotating support structure installed on the workbench and a displacement adjusting mechanism installed in the base. The rotating support structure comprises a rotating main shaft and two limiting rings, wherein the rotating main shaft is fixedly connected to the bottom of the workbench and extends into the base, and the limiting rings are fixedly connected to the outer side of the rotating main shaft. According to the single-shaft three-station positioner, when the position of the moving block is adjusted rightwards, an abutting block arranged on the moving block can push an adjusting column to enable the rotating main shaft and the workbench to rotate, when the moving block moves to the right side, the workbench just rotates by 60 degrees, and at the moment, an air cylinder can be operated to enable a limiting block to be connected with the adjusting column in a clamping mode to limit rotation of the workbench; therefore, displacement operation is achieved, displacement is easier and more convenient, the positioning precision in the station adjusting process is improved, and the using effect of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of welding auxiliary equipment, in particular to a single-axis three-station positioner. Background Art

[0002] The positioner is a special auxiliary equipment, suitable for rotary welding position change to obtain the ideal processing position and welding speed; it can be used in conjunction with the operating machine and welding machine to form an automatic welding center, and can also be used for workpiece position change during manual operation; the worktable rotation adopts stepless speed regulation with high speed regulation accuracy; the remote control box can realize remote operation of the worktable, and can also be connected with the operating machine and welding machine control system to realize linkage operation.

[0003] Please refer to a single-axis positioner with announcement number CN206123022U. In this patent, it is stated that "the main driving power of the existing single-axis positioner is driven by the output of the motor and then by gear transmission. Such a driving structure can achieve a relatively low rotation speed and has low positioning accuracy." The driving mechanism in this patent adopts a motor and a reducer. The reducer is directly connected to the pallet through a rotating shaft for direct driving. The pallet can reach a higher rotation speed and has higher positioning accuracy. A conductive block structure is provided under the pallet to introduce the static electricity of the pallet into the conductive block structure. At the same time, a leveling bolt is provided under the frame, which can achieve more convenient leveling operation when the frame is installed, making the rack installation more stable.

[0004] However, although the single-axis positioner in the above patent can achieve the purpose of adjusting the work position through rotation, there is no limit mechanism inside it for achieving precise positioning. When in use, the rotation of the pallet is achieved by adjusting the parameters of the motor, which is not only troublesome to adjust, but also easily leads to a decrease in the positioning accuracy of the pallet due to long-term use of the motor, affecting the use effect of the work position adjustment. In view of this, the present application proposes a single-axis three-position positioner. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a single-axis three-station positioner, which has the advantages of facilitating the position operation and regulation, improving the positioning accuracy during the position adjustment process, and effectively improving the use effect of the device. It solves the problem that the main driving power of the existing single-axis positioner is driven by the output of the motor and then by gear transmission. Such a driving structure can only achieve a low rotation speed and low positioning accuracy.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single-axis three-station positioner, comprising a base, a workbench installed on the top of the base, a rotating bracket structure installed on the workbench, and a position adjustment mechanism installed inside the base;

[0007] The rotating support structure includes a rotating main shaft fixedly connected to the bottom of the workbench and extending to the inside of the base, and two limiting rings fixedly connected to the outside of the rotating main shaft;

[0008] The displacement adjustment mechanism includes three adjustment columns fixedly connected to the bottom of the workbench, a limiting component for clamping the adjustment columns is arranged inside the base, a moving block movably connected to the inside of the base, a shifting component installed inside the base and used to realize the displacement adjustment of the moving block, a push block rotatably connected to the front side of the moving block, and a reset component installed on the front side of the moving block and used to maintain a constant position of the push block.

[0009] Optionally, a partition baffle is fixedly connected to the top of the workbench, and the partition baffle is an evenly divided Y-shaped structure.

[0010] By adopting the above technical solution, the workbench can be easily divided into three parts by using the partition baffle to form three workstations.

[0011] Optionally, a rotating groove slidably matched with the rotating main shaft and the limiting ring is opened inside the base, and the limiting ring is rollingly connected inside with balls that fit the inner wall of the rotating groove, and the number of balls is multiple.

[0012] By adopting the above technical solution, it is convenient to utilize the setting of the limiting ring to maintain the stable installation of the rotating spindle and the worktable, and utilize the setting of the ball to maintain the stable and smooth rotation thereof.

[0013] Optionally, the displacement assembly includes a moving motor fixedly connected to the inside of the base, and a threaded rod fixedly connected to an output end of the moving motor and threadably adapted to the moving block.

[0014] By adopting the above technical solution, it is convenient to use the mobile motor to drive the threaded rod to rotate, and the mobile block can move left and right as the threaded rod rotates.

[0015] Optionally, a guide rod slidably adapted to the moving block is fixedly connected inside the base, a fixed block rotatably connected to the threaded rod is fixedly connected inside the base, and the fixed block is fixedly connected to the end of the guide rod.

[0016] By adopting the above technical solution, the provided guide rod can be conveniently used to limit the rotation of the moving block, thereby improving its activity stability.

[0017] Optionally, the reset assembly includes a compression spring fixedly connected to the front face of the moving block and located on the right side of the pushing block, and a limiting pushing block fixedly connected to the front face of the moving block and located on the left side of the pushing block.

[0018] By adopting the above technical solution, it is convenient to push the push block to rotate to the left side under the elastic action of the extrusion spring, and at the same time, the setting of the limiting push block is used to prevent the push block from rotating excessively.

[0019] Optionally, the other end of the extrusion spring is fixedly connected to the right side of the push block, and the front side of the moving block is fixedly connected with a trapezoidal block for mounting the extrusion spring.

[0020] By adopting the above technical solution, the arranged trapezoidal block can be conveniently used to realize the inclined installation of the extrusion spring, so that the extrusion spring can effectively push the push block.

[0021] Optionally, the limiting component includes a cylinder fixedly connected to the inside of the base, and a limiting block fixedly connected to the output end of the cylinder and used for clamping the adjusting column.

[0022] By adopting the above technical solution, the position of the limit block can be conveniently adjusted by the operation of the cylinder, so that the limit block can be clamped with the adjustment column to limit the rotation of the workbench.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This single-axis three-station positioner can move the moving block left and right as the moving motor runs and the threaded rod rotates. When the position of the moving block is adjusted to the right, the push block arranged on the moving block can press against the left side of the adjusting column, and push the adjusting column to rotate the rotating spindle and the workbench. When the moving block moves to the right, the workbench rotates exactly sixty degrees. At this time, the cylinder can be operated to make the limit block engage the adjusting column to limit the rotation of the workbench, thereby realizing the position shifting operation, so as to make the position shifting simpler, and improve the positioning accuracy during the station adjustment process, effectively improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the front view of the structure of the utility model;

[0026] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0027] Figure 3 This is a top view of the structure of the base of the utility model;

[0028] Figure 4 It is a structural stereogram of the workbench of the utility model.

[0029] In the figure: 1. base; 2. workbench; 3. partition baffle; 4. rotating main shaft; 5. limiting ring; 501, ball; 6. adjusting column; 7. moving motor; 8. threaded rod; 9. moving block; 10. guide rod; 11. push block; 12. extrusion spring; 13. limit block; 14. cylinder; 15. limit block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-4 A single-axis three-station positioner in this embodiment includes a base 1, a workbench 2 installed on the top of the base 1, a rotating bracket structure installed on the workbench 2, and a position adjustment mechanism installed inside the base 1.

[0032] In this embodiment, the rotating bracket structure includes a rotating main shaft 4 fixedly connected to the bottom of the workbench 2 and extending to the inside of the base 1, and two limiting rings 5 ​​fixedly connected to the outside of the rotating main shaft 4; a partition baffle 3 is fixedly connected to the top of the workbench 2, and the partition baffle 3 is an evenly divided Y-shaped structure, which is convenient for using the partition baffle 3 to divide the workbench 2 into three parts, so as to form three workstations.

[0033] Among them, a rotating groove that is slidably adapted to the rotating main shaft 4 and the limiting ring 5 is opened inside the base 1, and the internal rolling connection of the limiting ring 5 is provided with a ball 501 that fits the inner wall of the rotating groove, and the number of the ball 501 is multiple, which makes it convenient to use the setting of the limiting ring 5 to maintain the stable installation of the rotating main shaft 4 and the workbench 2, and to use the setting of the ball 501 to maintain the stable and smooth rotation of the rotating main shaft 4.

[0034] In this embodiment, the displacement adjustment mechanism includes three adjustment columns 6 fixedly connected to the bottom of the workbench 2, a limiting component for clamping the adjustment column 6 is arranged inside the base 1, a moving block 9 movably connected to the inside of the base 1, a shifting component installed inside the base 1 and used to realize the displacement adjustment of the moving block 9, a push block 11 rotatably connected to the front side of the moving block 9, and a reset component installed on the front side of the moving block 9 and used to maintain the constant position of the push block 11.

[0035] The shift assembly includes a mobile motor 7 fixedly connected to the inside of the base 1, a threaded rod 8 fixedly connected to the output end of the mobile motor 7 and threadedly adapted to the mobile block 9; a guide rod 10 slidably adapted to the mobile block 9 is fixedly connected to the inside of the base 1, and a fixed block rotatably connected to the threaded rod 8 is fixedly connected to the inside of the base 1, and the fixed block is fixedly connected to the end of the guide rod 10. It is convenient for the mobile block 9 to move left and right with the rotation of the threaded rod 8, and the guide rod 10 set in this process can play a role in limiting the movement of the mobile block 9.

[0036] In this embodiment, the reset assembly includes a squeeze spring 12 fixedly connected to the front of the moving block 9 and located on the right side of the push block 11, and a limit stop block 13 fixedly connected to the front of the moving block 9 and located on the left side of the push block 11. The other end of the squeeze spring 12 is fixedly connected to the right side of the push block 11, and a trapezoidal block for mounting the squeeze spring 12 is fixedly connected to the front of the moving block 9. The squeeze spring 12 is conveniently used to provide a thrust for the push block 11 to rotate to the left, and the limit stop block 13 is used to prevent the push block 11 from rotating excessively.

[0037] Among them, the limiting component includes a cylinder 14 fixedly connected to the inside of the base 1, and a limit block 15 fixedly connected to the output end of the cylinder 14 and used to clamp the adjusting column 6; when the limit block 15 clamps the adjusting column 6, it is convenient to limit the rotation of the workbench 2.

[0038] The working principle of the above embodiment is:

[0039] When the single-axis three-station positioner is in use, during the operation of the moving motor 7, the moving block 9 can be moved left and right with the rotation of the threaded rod 8. When the moving block 9 is located on the left side of the adjusting column 6, the set push block 11 can push the adjusting column 6 to move to the right with the movement of the moving block 9, thereby facilitating the rotation of the workbench 2. When the moving block 9 moves to the right, the workbench 2 just rotates sixty degrees. At this time, the cylinder 14 can be operated to make the limit block 15 engage the adjusting column 6 to limit the rotation of the workbench 2, thereby realizing the position shifting operation. When the limit block 15 engages the adjusting column 6, the moving motor 7 can also be operated in reverse to make the moving block 9 move to the left. During this process, the push block 11 will press the extrusion spring 12 and rotate when it contacts the adjusting column 6, thereby facilitating the push block 11 to be moved to the left side of another adjusting column 6 again, thereby facilitating subsequent position shifting operations.

Claims

1. A single-axis three-station positioner, characterized in that: It comprises a base (1), a workbench (2) installed on the top of the base (1), a rotating bracket structure installed on the workbench (2), and a displacement adjustment mechanism installed inside the base (1); The rotating support structure comprises a rotating main shaft (4) fixedly connected to the bottom of the workbench (2) and extending to the inside of the base (1), and two limiting rings (5) fixedly connected to the outside of the rotating main shaft (4); The displacement adjustment mechanism comprises three adjustment columns (6) fixedly connected to the bottom of the workbench (2), a limiting component provided inside the base (1) for clamping the adjustment columns (6), a moving block (9) movably connected to the inside of the base (1), a displacement component installed inside the base (1) and used to achieve displacement adjustment of the moving block (9), a push block (11) rotatably connected to the front of the moving block (9), and a reset component installed on the front of the moving block (9) and used to maintain a constant position of the push block (11).

2. A single-axis three-station positioner according to claim 1, characterized in that: A partition baffle (3) is fixedly connected to the top of the workbench (2), and the partition baffle (3) is an evenly divided Y-shaped structure.

3. A single-axis three-station positioner according to claim 1, characterized in that: The base (1) is provided with a rotating groove that is slidably matched with the rotating main shaft (4) and the limiting ring (5), and the limiting ring (5) is rollingly connected with a ball (501) that fits the inner wall of the rotating groove, and the number of the balls (501) is multiple.

4. A single-axis three-station positioner according to claim 1, characterized in that: The displacement assembly comprises a moving motor (7) fixedly connected to the interior of the base (1), and a threaded rod (8) fixedly connected to the output end of the moving motor (7) and threadably adapted to a moving block (9).

5. A single-axis three-station positioner according to claim 4, characterized in that: A guide rod (10) slidably adapted to the moving block (9) is fixedly connected inside the base (1), a fixed block rotatably connected to the threaded rod (8) is fixedly connected inside the base (1), and the fixed block is fixedly connected to the end of the guide rod (10).

6. The single-axis three-station positioner according to claim 1, characterized in that: The reset assembly comprises a compression spring (12) fixedly connected to the front face of the moving block (9) and located on the right side of the push block (11), and a limit stop block (13) fixedly connected to the front face of the moving block (9) and located on the left side of the push block (11).

7. A single-axis three-station positioner according to claim 6, characterized in that: The other end of the extrusion spring (12) is fixedly connected to the right side of the push block (11), and the front side of the moving block (9) is fixedly connected to a trapezoidal block for mounting the extrusion spring (12).

8. The single-axis three-station positioner according to claim 1, characterized in that: The limiting component comprises a cylinder (14) fixedly connected to the interior of the base (1), and a limiting block (15) fixedly connected to the output end of the cylinder (14) and used for clamping the adjusting column (6).

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