Rotor driving structure

Abstract

The utility model relates to the field of valves, in particular to a rotor driving structure, and adopts the technical scheme that the rotor driving structure is used for assembling a product which comprises a screw rod and a rotor, comprising a mounting base, a positioning piece arranged on the mounting base and used for positioning a product, a clamping assembly arranged on the mounting base and used for clamping the product, a moving assembly arranged above the mounting base, and a moving base arranged on the moving assembly and located above the positioning piece. The floating assembly is arranged on the side, facing the mounting base, of the moving base, the driving assembly is used for driving the rotor to rotate, and the floating assembly is used for abutting against the screw. The rotor has the effects of improving the stability of the screw in the rotating process of the rotor, solving the problem of passive following rotation of the screw and ensuring the product quality.

Description

Technical Field

[0001] This application relates to the field of valves, and more particularly to a rotor drive structure. Background Technology

[0002] During the assembly of the EXV refrigerant valve, a timed pulse operation is required. After the timed pulse, the rotor needs to be rotated before installation. Once the rotor reaches the stop position of the guide spring, the next step of rotor welding can proceed. During this entire process, the screw must not rotate further; otherwise, the timed pulse will fail, leading to poor functionality in subsequent tests.

[0003] In existing refrigerant valve assembly, robots are typically used to place the product into a fixture, and then use rotating jaws to hold the rotor. The rotor rotates according to the number of revolutions set by the operator. After reaching the spring stop, the entire product rotates with the rotor. Once the set number of revolutions is reached, the product stops rotating. The jaws move up and down to hold the lower end of the product and the rotor, and the product is then moved laterally to the welding area for welding via a moving device.

[0004] However, the coaxiality between the existing robot gripper, product positioning fixture, and product cannot be guaranteed; the screw is in a free state, and it is impossible to determine whether the screw will rotate during the assembly process. Utility Model Content

[0005] In order to reduce the impact of rotor rotation on the screw and improve the stability of the screw during rotor rotation, this application provides a rotor drive structure.

[0006] This application provides a rotor drive structure, which adopts the following technical solution:

[0007] A rotor drive structure for assembling a product, the product including a screw and a rotor, comprising a mounting base, a positioning element disposed on the mounting base for positioning the product, a clamping assembly disposed on the mounting base for holding the product, a movable assembly disposed above the mounting base, a movable seat disposed on the movable assembly and located above the positioning element, a floating assembly disposed on the movable seat facing the mounting base, and a drive assembly for driving the rotor to rotate, the floating assembly being used to abut against the screw.

[0008] By adopting the above technical solution, the mounting base is used to install the positioning component, the positioning component is used to position the lower end of the product, the clamping component works with the positioning component to clamp and position the product, the moving component is used to drive the moving base to move up and down, the moving base moves the floating component to move up and down, the floating component is used to position the screw, and the driving component is used to drive the rotor to rotate. This effectively solves the problem of coaxiality between the clamping component, the positioning component and the product, and improves the stability of the screw during rotor rotation.

[0009] Preferably, the clamping assembly includes a first clamp and a second clamp disposed above the first clamp. The positioning member has a positioning groove with an opening facing the movable seat. The product is positioned in the positioning groove. The side wall of the positioning member facing the first clamp has a clearance hole that communicates with the positioning groove inside the positioning member. The first clamp extends into the positioning groove through the clearance hole to abut and limit the product. The second clamp is used to clamp the rotor.

[0010] By adopting the above technical solution, gripper one works with the positioning component to clamp and position the lower end of the product, and gripper two clamps and positions the upper end of the product, thereby improving the positional stability of the product before the rotor rotates.

[0011] Preferably, the movable component includes a support platform mounted on the mounting base and a cylinder mounted on the support platform. The piston end of the cylinder is connected to the movable base, and the cylinder is used to drive the movable base to move up and down.

[0012] By adopting the above technical solution, the support platform is used to install the cylinder and provide a moving distance for the piston end of the cylinder. The cylinder is used to drive the moving seat to move up and down, and to drive the positioning screw of the floating component.

[0013] Preferably, the support platform is provided with a slide rail along the height direction on the side facing the movable seat, and the movable seat is provided with a slider located on the slide rail.

[0014] By adopting the above technical solutions, the slide rail and slider improve the stability of the moving seat during movement.

[0015] Preferably, the floating assembly includes a screw head disposed on the side of the movable seat facing the product, the screw head being used to position the screw.

[0016] By adopting the above technical solution, the screw pressure head is used to position the screw, improve the stability of the screw during rotor rotation, avoid the screw from rotating with the rotor, and facilitate subsequent processing.

[0017] Preferably, the movable seat is provided with an adjusting rod on the side facing the product, and an adjusting block is sleeved on the adjusting rod, with the screw head fixedly connected to the adjusting block.

[0018] By adopting the above technical solution, the adjusting block is sleeved on the adjusting rod, and the position of the adjusting block can be adjusted, thereby adjusting the position of the screw head, so that the screw head can be adjusted and positioned according to the position of the product screw.

[0019] Preferably, the driving component includes a driving magnet, the outer periphery of which is magnetized with N poles and S poles at equal intervals.

[0020] Preferably, the drive assembly further includes a motor mounted on the movable base and a drive rod mounted at the output end of the motor. The drive magnet is located on the side of the drive rod near the mounting base, and the motor drives the drive magnet to rotate via the drive rod.

[0021] By adopting the above technical solution, the motor drives the drive rod to rotate, the drive rod rotates to drive the magnet to rotate, and the magnet rotates. Through the interaction between the magnetic fields, the rotor moves in the opposite direction along with the magnet.

[0022] Preferably, when using this rotor drive structure, the moving component adjusts the position of the drive magnet to a position where the drive magnet can drive the rotor to rotate, and the drive magnet does not contact the rotor.

[0023] In summary, the positioning component positions the product and improves its stability during rotor rotation; the clamping assembly improves the stability of the product and the rotor on it before rotation; and the floating assembly is used to position the screw and improve its stability during rotor rotation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a rotor drive structure according to this application. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of a rotor drive structure according to this application. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the positioning element and clamping assembly of this application. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the positioning element and clamping assembly of this application. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of a rotor drive structure according to this application. Figure 3 .

[0029] Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Positioning component; 21. Clearance hole; 3. Clamping assembly; 31. Clamping jaw one; 32. Clamping jaw two; 4. Moving assembly; 41. Support platform; 42. Cylinder; 5. Moving seat; 6. Screw pressure head; 7. Drive assembly; 71. Motor; 72. Drive rod; 73. Drive magnet; 8. Slide rail; 9. Slider; 10. Adjusting rod; 11. Adjusting block; 12. Product; 13. Rotor; 14. Screw. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1-5The present invention will be further described below. The following embodiments are only used to more clearly illustrate the technical solution of this application, and should not be used to limit the protection scope of the present invention.

[0031] In the description of this application, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] This application discloses a rotor drive structure. (Refer to...) Figure 1 and Figure 2 The assembly includes a mounting base 1, a positioning element 2 mounted on the mounting base 1, a clamping assembly 3 mounted on the mounting base 1, a moving assembly 4 mounted on the mounting base 1 and located on one side of the positioning element 2, a moving seat 5 mounted on the moving assembly 4, a floating assembly and a driving assembly 7 mounted on the moving seat 5; the positioning element 2 has a positioning groove for positioning the product 12, the positioning groove has an opening facing the moving seat 5, during the assembly of the product 12, the product 12 is placed in the positioning groove to achieve the initial positioning of the product 12, the product 12 includes a screw 14 and a rotor 13. To improve the stability of product 12 during the rotation of rotor 13, clamping component 3, in conjunction with positioning component 2, positions product 12. Moving component 4 drives moving seat 5 to move up and down, thereby driving drive component 7 mounted on moving seat 5 to move up and down. In actual use, moving seat 5 drives drive component 7 to a position where it can drive rotor 13 to rotate. Preferably, drive component 7 moves to the side at the same height as rotor 13. At this time, floating component on moving seat 5 moves above screw 14 and presses down screw 14. Drive component 7 drives rotor 13 to rotate, and floating component positions screw 14, improving the stability of screw 14 when rotor 13 rotates and effectively preventing the phenomenon of rotor 13 rotating and screw 14 following suit.

[0033] Reference Figure 3 and Figure 4The clamping assembly 3 includes a first clamp 31 and a second clamp 32. The first clamp 31 is used to clamp the lower end of the product 12, and the second clamp 32 is used to clamp the rotor 13 at the upper end of the product 12, improving the stability of the rotor 13 before rotation. To facilitate the clamping assembly 3 in cooperating with the positioning member 2 to position the product 12, the positioning member 2 has a clearance hole 21 on its side wall facing the first clamp 31, which communicates with the positioning groove of the positioning member 2. The first clamp 31 extends into the positioning groove through the clearance hole 21 and abuts against the product 12 to position the lower end of the product 12. In this embodiment, the first clamp 31 includes a clamping part 1 for clamping both sides of the product 12. The shape of the clamping part 1 is adapted to the shape of the part of the product 12 to be clamped. For example, when the part of the product 12 to be clamped is cylindrical, the clamping part 1 is recessed inward in an arc shape on the side wall facing the product 12, which facilitates the clamping part 1 in positioning the product 12. In specific implementation, the shape of the clamping end face of clamping part one can be set according to the shape of the side wall of product 12 to improve the positioning effect of clamping jaw one 31 on product 12. Clamping jaw two 32 includes clamping parts two for clamping both sides of rotor 13. Preferably, when rotor 13 is cylindrical, the side wall of clamping part two for clamping product 12 is concave inward in an arc shape, which facilitates the positioning of product 12 by clamping part two. When rotor 13 is of other shapes, the shape of clamping part two can be adapted to fit.

[0034] Reference Figure 5 The movable component 4 includes a support platform 41 fixedly mounted on the mounting base 1 and a cylinder 42 fixedly mounted on the upper end of the support platform 41. The piston end of the cylinder 42 reciprocates up and down along the height direction of the support platform 41. The piston end of the cylinder 42 is connected to the movable seat 5, and the cylinder 42 drives the movable seat 5 to move up and down. To improve the stability of the movement of the movable seat 5, a slide rail 8 is fixedly mounted on the side of the support platform 41 facing the movable seat 5 along the height direction. A slider 9 located on the slide rail 8 is fixedly mounted on the movable seat 5. When the cylinder 42 drives the movable seat 5 to move up and down, the slider 9 reciprocates on the slide rail 8.

[0035] Reference Figure 5The moving component 4 moves downward, causing the floating component to position the screw 14. The floating component includes a screw pressure head 6 disposed on the side of the moving seat 5 facing the product 12. The downward movement of the moving seat 5 causes the screw pressure head 6 to press against and position the screw 14 of the product 12. To improve the practicality of the screw pressure head 6, an adjusting rod 10 is installed on the side of the moving seat 5 facing the product 12. An adjusting block 11 is sleeved on the adjusting rod 10. The adjusting block 11 can move relative to the length of the adjusting rod 10 to adjust its position. The screw pressure head 6 is installed on the side of the adjusting block 11 facing the product 12. The adjusting block 11 has several adjusting holes along the length of the adjusting rod 10. The moving seat 5 has threaded holes communicating with the adjusting holes. The adjusting block 11 is fixedly installed on the moving seat 5 by bolts. When the screw pressure head 6 needs to be adjusted, the adjusting block 11 slides on the adjusting rod 10 for adjustment and is then fixed by bolts, making it easy for the screw pressure head 6 to be adjusted according to the position of the screw 14 of the product 12.

[0036] Reference Figure 5 After the floating assembly positions the screw 14, the gripper 32 releases the rotor 13, and the drive assembly 7 drives the rotor 13 to rotate. The drive assembly 7 includes a motor 71 mounted on the movable base 5, a drive rod 72 fixed to the output end of the motor 71, and a drive magnet 73 mounted on the drive rod 72. A bearing is installed at the connection between the drive rod 72 and the movable base 5 to reduce the friction between the drive rod 72 and the movable base 5, facilitating the drive rod 72 to drive the drive magnet 73 to rotate. The outer circumference of the drive magnet 73 is equally spaced with N and S poles for driving the rotor 13 to rotate. In this embodiment, the drive magnet 73 is sleeved on the lower end of the drive rod 72. When assembling the product 12, the drive magnet 73 is moved to the side of the rotor 13, and the drive magnet 73 does not contact the rotor 13. Preferably, the moving component 4 moves the drive magnet 73 to the same axial height as the rotor 13 of the product 12, and the drive magnet 73 drives the rotor 13 to rotate. In specific implementation, the position of the drive magnet 73 can be any position that can drive the rotor 13 to rotate. When the installer uses a drive magnet 73 with a larger magnetic force, the distance and height difference between the drive magnet 73 and the rotor 13 can be adjusted according to the actual driving needs. The end of the drive rod 72 that passes through the drive magnet 73 is threaded with a nut, and the drive magnet 73 is fixed to the drive rod 72 by the nut. When the motor 71 drives the drive rod 72 to rotate, the drive rod 72 rotates and drives the drive magnet 73 to rotate synchronously. The rotation of the drive magnet 73, through the interaction between the magnetic fields, achieves the attraction of ferromagnetic materials. At this time, the rotor 13 of the product 12 (i.e., the magnet) moves in the opposite direction along with the rotation of the drive magnet 73.

[0037] The implementation principle of the rotor drive structure in this application embodiment is as follows: Product 12 is placed in positioning component 2, and then gripper 1 31 is activated to extend into clearance hole 21 to position the lower end of product 12; gripper 2 32 is activated to clamp and position the upper rotor 13 of product 12. After product 12 is positioned, cylinder 42 drives moving seat 5 to move downward, thereby driving screw pressure head 6 to move downward and press against screw 14 on product 12, improving the stability of screw 14. At the same time as cylinder 42 drives moving seat 5 downward, drive magnet 73 moves to the same horizontal height as rotor 13. After screw 14 is positioned, gripper 2 32 releases rotor 13. At this time, motor 71 is started, motor 71 drives drive magnet 73 to rotate, drive magnet 73 to rotate rotor 13, and drive magnet 73 can drive rotor 13 to rotate without contacting rotor 13. This application effectively improves the stability of screw 14 during rotor 13 rotation, effectively avoids screw 14 following rotation during this process, and ensures the processing quality of product 12.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotor drive structure for assembling a product (12), said product (12) comprising a screw (14) and a rotor (13), characterized in that: It includes a mounting base (1), a positioning element (2) disposed on the mounting base (1) for positioning the product (12), a clamping assembly (3) disposed on the mounting base (1) for clamping the product (12), a moving assembly (4) disposed above the mounting base (1), a moving seat (5) disposed on the moving assembly (4) and located above the positioning element (2), a floating assembly disposed on the side of the moving seat (5) facing the mounting base (1), and a driving assembly (7) for driving the rotor (13) to rotate, wherein the floating assembly is used to abut against the screw (14).

2. The rotor drive structure according to claim 1, characterized in that: The clamping assembly (3) includes a first clamp (31) and a second clamp (32) disposed above the first clamp (31). The positioning member (2) has a positioning groove with an opening facing the moving seat (5). The product (12) is positioned in the positioning groove. The positioning member (2) has a clearance hole (21) on the side wall facing the first clamp (31) that communicates with the positioning groove inside the positioning member (2). The first clamp (31) extends into the positioning groove through the clearance hole (21) to abut and limit the product (12). The second clamp (32) is used to clamp the rotor (13).

3. The rotor drive structure according to claim 1, characterized in that: The moving component (4) includes a support platform (41) mounted on the mounting base (1) and a cylinder (42) mounted on the support platform (41). The piston end of the cylinder (42) is connected to the moving seat (5), and the cylinder (42) is used to drive the moving seat (5) to move up and down.

4. The rotor drive structure according to claim 3, characterized in that: The support platform (41) has a slide rail (8) along the height direction on the side facing the movable seat (5), and the movable seat (5) has a slider (9) located on the slide rail (8).

5. A rotor drive structure according to claim 1, characterized in that: The floating assembly includes a screw head (6) disposed on the side of the movable seat (5) facing the mounting seat (1), the screw head (6) being used to position the screw (14).

6. The rotor drive structure according to claim 5, characterized in that: The movable seat (5) is provided with an adjusting rod (10) facing the product (12), and an adjusting block (11) is sleeved on the adjusting rod (10). The screw head (6) is fixedly connected to the adjusting block (11).

7. The rotor drive structure according to claim 1, characterized in that: The drive assembly (7) includes a drive magnet (73), the outer periphery of which is magnetized with N poles and S poles at equal intervals.

8. A rotor drive structure according to claim 7, characterized in that: The drive assembly (7) also includes a motor (71) mounted on the movable base (5) and a drive rod (72) mounted on the output end of the motor (71). The drive magnet (73) is mounted on the side of the drive rod (72) near the mounting base (1). The motor (71) drives the drive magnet (73) to rotate through the drive rod (72).

9. A rotor drive structure according to claim 7, characterized in that: When using the rotor drive structure, the moving component (4) adjusts the position of the drive magnet (73) to a position where the drive magnet (73) can drive the rotor (13) to rotate, and the drive magnet (73) does not contact the rotor (13).

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