Electric motor rotor hot press

Abstract

The present application relates to motor rotor processing technical field, especially a kind of motor rotor hot press, including workbench, workbench is sequentially provided with balance ring heating station, riveting station and stainless steel sleeve heating station;Riveting station is provided with double-station transfer mechanism and riveting mechanism, balance ring heating station and stainless steel sleeve heating station are respectively provided with heating mechanism;Balance ring feeding mechanism is arranged between balance ring heating station and riveting station, stainless steel sleeve feeding mechanism is arranged between stainless steel sleeve heating station and riveting station.The present application can reduce the interference amount with motor rotor by increasing heating mechanism, and reduce the pressure demand, so that product is not easy to be deformed.

Description

Technical Field

[0001] This invention relates to the field of motor rotor processing technology, and more particularly to a motor rotor hot press. Background Technology

[0002] A rotor assembly is generally assembled from parts such as a shaft, rotor core, magnets, balance rings, and carbon fiber tubes or metal sleeves. Specifically, the motor rotor, consisting of a shaft, rotor core, and magnets, is first assembled. Then, a stainless steel sleeve is fitted onto the motor rotor. Finally, the balance rings are pressed into the stainless steel sleeves and installed into the motor rotor.

[0003] Currently, most press-fitting in the market is done manually using hydraulic cylinders, pneumatic cylinders, booster cylinders, etc. The resulting products have poor precision consistency, and the stainless steel sleeves and balance rings are prone to deformation. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a hot press for motor rotors, which reduces the interference fit with the motor rotor through heating, thereby lowering the pressure requirement and making the product less prone to deformation.

[0005] To achieve the above objectives, the present invention provides a motor rotor hot press, comprising a worktable, on which a balance ring heating station, a riveting station, and a stainless steel sleeve heating station are sequentially arranged; the riveting station is provided with a double-workstation displacement mechanism and a riveting mechanism, and the balance ring heating station and the stainless steel sleeve heating station are respectively provided with heating mechanisms; a balance ring feeding mechanism is provided between the balance ring heating station and the riveting station, and a stainless steel sleeve feeding mechanism is provided between the stainless steel sleeve heating station and the riveting station.

[0006] As a preferred embodiment, a water-cooling mechanism is installed on one side of the workbench.

[0007] As a preferred embodiment, the heating mechanism is a high-frequency heater, with an induction heating coil extending from the outer side of the high-frequency heater. This induction heating coil is used to heat the balance ring and the stainless steel sleeve.

[0008] As a preferred embodiment, the balance ring heating station and the stainless steel sleeve heating station are further provided with temperature sensing components, the probes of which extend into the induction heating coil.

[0009] As a preferred embodiment, the riveting mechanism includes a riveting machine frame, a riveting cylinder, a riveting connecting block, and a mounting base. The riveting machine frame and the mounting base are installed on the riveting station of the workbench. The riveting cylinder is installed on the riveting machine frame. The output shaft of the riveting cylinder is connected to the riveting connecting block, and the riveting connecting block is connected to a dual-workstation displacement mechanism.

[0010] As a preferred embodiment, the riveting station is also equipped with a material sensing component, which is located on one side of the mounting base and is used to detect the material assembly status on the mounting base.

[0011] As a preferred embodiment, the dual-work displacement mechanism includes a first base, two slide rails, two sliding seats, and two first cylinders; the two slide rails are symmetrically mounted on the first base, and the two sliding seats are slidably fixed on the two slide rails respectively; the two first cylinders are arranged side by side and staggered between the two slide rails, and the two first cylinders are respectively driven and connected to the two sliding seats one by one; each sliding seat has a clamping component.

[0012] As a preferred embodiment, the sliding seat's range of motion covers both the balance ring feeding mechanism and the stainless steel sleeve feeding mechanism.

[0013] As a preferred embodiment, the balance ring feeding mechanism includes a second base, a second cylinder, and a balance ring pusher. The second cylinder is mounted on the second base, and the balance ring pusher is mounted on the output shaft of the second cylinder. The balance ring pusher is provided with a balance ring holding groove.

[0014] As a preferred embodiment, the stainless steel sleeve feeding mechanism includes a third base, a third cylinder, and a stainless steel sleeve pusher block. The third cylinder is mounted on the third base, and the stainless steel sleeve pusher block is mounted on the output shaft of the third cylinder. The stainless steel sleeve pusher block is provided with a stainless steel sleeve holding groove.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention incorporates a heating mechanism. Before pressing, the balance ring and stainless steel sleeve are heated, then the balance ring is pressed into the motor rotor, followed by the stainless steel sleeve. This reduces the interference fit with the motor rotor, lowers the pressure requirements, and makes the product less prone to deformation. During the pressing process, a dual-worker displacement mechanism, a balance ring feeding mechanism, a stainless steel sleeve feeding mechanism, and a heating mechanism enable fully automated production. No manual intervention is required during the heating and pressing processes, reducing human fatigue and improving safe production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an electronic rotor hot press.

[0018] Figure 2 This is a structural schematic diagram of the electronic rotor hot press from another angle.

[0019] Figure 3 This is a schematic diagram of the heating mechanism.

[0020] Figure 4 This is a schematic diagram of the riveting mechanism.

[0021] Figure 5 This is a structural schematic diagram of a dual-workload displacement mechanism.

[0022] Figure 6 This is a schematic diagram of the balance ring feeding mechanism.

[0023] Figure 7 This is a schematic diagram of the stainless steel sleeve feeding mechanism.

[0024] Reference numerals: 10-Workbench; 20-Double-workstation transfer mechanism; 21-First base; 22a, 22b-Slide rails; 23a, 23b-Sliding seats; 24a, 24b-First cylinders; 25a, 25b-Clamping components; 26a, 26b-Cylinder shafts; 27-Second cable chain plate; 28a, 28b-Second cable chain components; 29a, 29b-Second cable chain; 30-Riveting mechanism; 31-Riveting frame; 32-Riveting cylinder; 33-Riveting connecting block; 34-Mounting base; 35-Material sensing component; 36-Guide 37-First drag chain plate; 38-First drag chain component; 39-First drag chain; 40-Heating mechanism; 41-Heating frame; 42-High frequency heater; 43-Temperature sensing component; 44-Support rod; 45-Induction heating coil; 46-Probe; 50-Balance ring feeding mechanism; 51-Second base; 52-Second cylinder; 53-Balance ring pusher block; 60-Stainless steel sleeve feeding mechanism; 61-Third base; 62-Third cylinder; 63-Stainless steel sleeve pusher block; 70-Water cooling mechanism; 80-Rotating boom; 90-Control panel. Detailed Implementation

[0025] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Please see Figure 1 and Figure 1 As shown, the present invention relates to a motor rotor hot press, comprising a worktable 10, on which a balance ring heating station, a riveting station, and a stainless steel sleeve heating station are sequentially arranged; the riveting station is provided with a double-workstation displacement mechanism 20 and a riveting mechanism 30, and the balance ring heating station and the stainless steel sleeve heating station are respectively provided with heating mechanisms 40; a balance ring feeding mechanism 50 is provided between the balance ring heating station and the riveting station, and a stainless steel sleeve feeding mechanism 60 is provided between the stainless steel sleeve heating station and the riveting station.

[0029] This invention incorporates a heating mechanism 40, which heats the balance ring and stainless steel sleeve before pressing. The balance ring is then pressed into the motor rotor, followed by the stainless steel sleeve. This reduces the interference fit with the motor rotor, lowers the pressure requirements, and prevents product deformation. During the pressing process, the dual-worker displacement mechanism 20, the balance ring feeding mechanism 50, the stainless steel sleeve feeding mechanism 60, and the heating mechanism 40 enable fully automated production. No manual intervention is required during the heating and pressing processes, reducing human fatigue and improving safe production.

[0030] A water-cooling mechanism 70 is installed on one side of the workbench 10. By setting up the water-cooling mechanism 70, the heat on the riveting station can be displaced outward by circulating coolant, thereby quickly cooling down the processed workpiece. This greatly shortens the workpiece cooling time, increases the working efficiency and practicality of the hot press, and avoids the problem that the processed workpiece needs to be cooled for a long time before the next workpiece can be processed, which affects the working efficiency and practicality of the hot press and prevents large-scale rapid production.

[0031] like Figure 3 As shown, the heating mechanism 40 includes a heating frame 41 and a high-frequency heater 42. The heating frame 41 is mounted on the workbench 10, and the high-frequency heater 42 is placed on the heating frame 41. The high-frequency heater 42 mainly consists of a main unit and an induction heating coil 45. It is an electromagnetic heater. The main unit is connected to the induction heating coil through a copper pipe. The induction heating coil 45 extends from the main unit. The balance ring and the stainless steel sleeve are heated to a specified temperature of 160 degrees Celsius by the induction heating coil 45 of the high-frequency heater 42.

[0032] To better monitor the heating process, the balance ring heating station and the stainless steel sleeve heating station are also equipped with temperature sensing components 43. The temperature sensing components 43 are mounted on the worktable 10 by a support rod. The probe 46 of the temperature sensing components 43 extends into the induction heating coil 45. When the temperature sensing components 43 detect that the preset temperature has been reached, the balance ring feeding mechanism 50 and the stainless steel sleeve feeding mechanism 60 will transfer the workpiece to the riveting station for hot pressing.

[0033] like Figure 4 As shown, the riveting mechanism 30 includes a riveting frame 31, a riveting cylinder 32, a riveting connecting block 33, and a mounting base 34. The riveting frame 31 and the mounting base 34 are installed on the riveting station of the workbench 10. The riveting cylinder 32 is installed on the riveting frame 31, and the output shaft of the riveting cylinder 32 is connected to the riveting connecting block 33. The riveting connecting block 33 is connected to the double-worker displacement mechanism 20. The mounting base 34 is located directly below the riveting connecting block 33. The mounting base 34 is provided with a holding slot for mounting the motor rotor. The assembled motor rotor (a motor rotor composed of a shaft, rotor core, and magnets) is manually placed into the holding slot of the mounting base 34. The double-worker displacement mechanism 20 picks up the balance ring and stainless steel sleeve from the balance ring feeding mechanism 50 and the stainless steel sleeve feeding mechanism 60. Driven by the riveting cylinder 32, they move towards the mounting base 34 to achieve the pressing of the motor rotor with the balance ring and stainless steel sleeve.

[0034] The riveting station is also equipped with a material sensing component 35, which is located on one side of the mounting base 34. It is used to detect the material assembly status on the mounting base 34, realize the automatic assembly of the electronic rotor, and automatically detect the assembly status of the balance ring and the stainless steel sleeve, which greatly improves production efficiency and increases the product qualification rate.

[0035] A pressure sensor (not shown) is also installed between the riveting cylinder 32 and the riveting connecting block 33. With the cooperation of the precision servo electric cylinder press-fitting, the pressure sensor and the system algorithm, the pressure and position of the stainless steel sleeve and the balance ring can be accurately detected.

[0036] To ensure more stable downward pressing of the riveting connecting block 33, four guide rods 36 and a cable chain structure are provided between the riveting connecting block 33 and the riveting machine frame 31. The bottom end of the guide rod 36 is connected to the riveting connecting block 33, and its upper end is movably connected to the riveting machine frame 31. The cable chain structure includes a first cable chain plate 37, a first cable chain component 38, and a first cable chain 39. The first cable chain plate 37 is vertically arranged, with its bottom connected to the riveting connecting block 33 and its top penetrating the riveting bracket. The first cable chain 39 is disposed on the first cable chain plate 37 and connected to the first cable chain component 38, which is fixed to the top of the riveting machine frame 31.

[0037] like Figure 5As shown, the dual-work displacement mechanism 20 is installed on the riveting mechanism 30 and acts as the punch head of the riveting mechanism 30. In addition to pressing the balance ring, stainless steel sleeve and motor rotor together, it can also grip the heated balance ring and stainless steel sleeve. Specifically, the dual-work displacement mechanism 20 includes a first base 21, two slide rails 22a and 22b, two sliding seats 23a and 23b, and two first cylinders 24a and 24b. The two slide rails 22a and 22b are symmetrically mounted on the first base 21, and the two sliding seats 23a and 23b are slidably fixed on the two slide rails 22a and 22b respectively. The two first cylinders 24a and 24b are arranged side by side and staggered between the two slide rails 22a and 22b, and the two first cylinders 24a and 24b are respectively driven and connected to the two sliding seats 23a and 23b in a one-to-one correspondence. Each sliding seat 23a and 23b has a clamping member 25a and 25b, one clamping member 25b is used to clamp the balance ring, and the other clamping member 25a is used to clamp the stainless steel sleeve. The two first cylinders 24a and 24b, which are arranged side by side and staggered, have overlapping ranges of motion. This allows the two first cylinders 24a and 24b to drive the two clamping parts 25a and 25b to convey the materials into the overlapping ranges of motion, enabling the handling of two different materials and improving handling efficiency.

[0038] In order to grip materials, the sliding seats 23a and 23b have a range of motion covering the balance ring feeding mechanism 50 and the stainless steel sleeve feeding mechanism 60. That is, the slide rails 22a and 22b span the balance ring feeding mechanism 50 and the stainless steel sleeve feeding mechanism 60. Specifically, the range of motion of the sliding seat 23b used to grip the balance ring is the distance from one end of the balance ring feeding mechanism 50 to the mounting seat 34, while the range of motion of the sliding seat 23a used to grip the stainless steel sleeve is the distance from one end of the stainless steel sleeve feeding mechanism 60 to the mounting seat 34.

[0039] The moving ranges of the two first cylinders 24a and 24b partially overlap, and the overlapping position corresponds exactly to the position of the mounting base 34. The vicinity of the two first cylinders 24a and 24b is one end of the balance ring feeding mechanism 50 / stainless steel sleeve feeding mechanism 60. Specifically, the two first cylinders 24a and 24b are driven in the same direction. The telescopic end of the first cylinder 24b used to grip the balance ring is located within the range of the mounting base 34. The end of the cylinder shaft 26b of the first cylinder 24b is connected to the sliding seat 23b. When the cylinder shaft 26b extends, the clamping member 25b on the sliding seat 23b is positioned above the mounting base 34. With the help of the riveting cylinder 32, the balance ring can be pressed onto the motor rotor. When the first cylinder 24b retracts again, the cylinder shaft 26b drives the sliding seat 23b back to the position of the balance ring feeding mechanism 50, which can grip the balance ring. Another first cylinder 24a is used to grip the stainless steel sleeve. Its telescopic head is located within the range of the mounting base 34. The end of the cylinder shaft 26a of the first cylinder 24a is also connected to the sliding seat 23a. When the cylinder shaft 26a retracts, the clamping part 25a on the sliding seat 23a is positioned above the mounting base 34. With the help of the riveting cylinder 32, the stainless steel sleeve can be pressed onto the motor rotor. When the first cylinder 24a extends again, the cylinder shaft 26a drives the sliding seat 23a back to the position of the stainless steel sleeve feeding mechanism 60, which can grip the stainless steel sleeve.

[0040] A second cable chain plate 27 is provided on one side of the base, and two second cable chains 29a and 29b are provided on the second cable chain plate 27. The two second cable chains 29a and 29b are respectively connected to two sliding seats in a one-to-one correspondence. Specifically, a second cable chain component 28a is provided on one side of the sliding seat 23a, and the second cable chain 29a is connected to the second cable chain component 28a; a second cable chain component 28b is provided on one side of the sliding seat 23b, and the second cable chain 29b is connected to the second cable chain component 28b. When the first cylinders 24a and 24b drive the sliding seats 23a and 23b to move, the second cable chains 29a and 29b move synchronously. During the reciprocating motion, they can provide traction and protection for the built-in cables.

[0041] like Figure 6 As shown, the balance ring feeding mechanism 50 includes a second base 51, a second cylinder 52 and a balance ring pusher 53. The second cylinder 52 is mounted on the second base 51, and the balance ring pusher 53 is mounted on the output shaft of the second cylinder 52. The balance ring pusher 53 is provided with a first boss for fitting the balance ring.

[0042] Similar to the balance ring feeding mechanism 50, such as Figure 7As shown, the stainless steel sleeve feeding mechanism 60 includes a third base 61, a third cylinder 62, and a stainless steel sleeve pusher 63. The third cylinder 62 is mounted on the third base 61, and the stainless steel sleeve pusher 63 is mounted on the output shaft of the third cylinder 62. The stainless steel sleeve pusher 63 is provided with a second boss for feeding stainless steel sleeves.

[0043] Two feeding mechanisms use cylinders to move push blocks on the base to move materials from one workstation to the next. To achieve heating and pressing, the second base 51 spans the balance ring heating station and the riveting station. The balance ring is manually placed in the balance ring holding slot. Driven by the second cylinder 52, the balance ring is carried to the heating mechanism 40 for heating. After being heated to the specified temperature, the heated balance ring is carried to the riveting station by the second cylinder 52. The riveting cylinder 32 drives the double-workstation displacement mechanism 20 to move down. The double-workstation displacement mechanism 20 moves and grabs the heated balance ring. Driven by the riveting cylinder 32 and the first cylinders 24a and 24b, it moves towards the mounting base 34 and presses the balance ring into the motor rotor. Similarly, the third base 61 spans the stainless steel sleeve heating station and the riveting station. The stainless steel sleeve is manually placed in the stainless steel sleeve holding slot. Driven by the third cylinder 62, the stainless steel sleeve is carried to the heating mechanism 40 for heating. After reaching the designated temperature, the heated stainless steel sleeve is again carried to the riveting station by the third cylinder 62. The riveting cylinder 32 drives the double-worker displacement mechanism 20 to move downwards. The double-worker displacement mechanism 20 moves and grabs the heated stainless steel sleeve. Driven by the riveting cylinder 32 and the first cylinders 24a and 24b, it moves towards the mounting base 34, fitting the stainless steel sleeve onto the motor rotor. The heating and pressing processes require no manual intervention, reducing human fatigue and improving safe production.

[0044] To better control the operation of the hot press, a control panel 90 is connected to the riveting frame 31 via a rotating boom 80. The control panel 90 can set the heating temperature and the operation of each mechanism.

[0045] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A motor rotor hot press, comprising a worktable, characterized in that: The workbench is sequentially equipped with a balance ring heating station, a riveting station, and a stainless steel sleeve heating station; the riveting station is equipped with a dual-workstation displacement mechanism and a riveting mechanism, and the balance ring heating station and the stainless steel sleeve heating station are respectively equipped with heating mechanisms; a balance ring feeding mechanism is provided between the balance ring heating station and the riveting station, and a stainless steel sleeve feeding mechanism is provided between the stainless steel sleeve heating station and the riveting station. The balance ring feeding mechanism includes a second base, a second cylinder, and a balance ring pusher. The second cylinder is mounted on the second base, and the balance ring pusher is mounted on the output shaft of the second cylinder. The balance ring pusher is provided with a balance ring holding groove. The dual-work displacement mechanism includes a first base, two slide rails, two sliding seats, and two first cylinders; the two slide rails are symmetrically mounted on the first base, and the two sliding seats are slidably fixed on the two slide rails respectively; the two first cylinders are arranged side by side and staggered between the two slide rails, and the two first cylinders are respectively driven and connected to the two sliding seats one by one; each sliding seat has a clamping component.

2. The electric motor rotor hot press according to claim 1, characterized in that: A water-cooling mechanism is installed on one side of the workbench.

3. The electric motor rotor hot press according to claim 1, characterized in that: The heating mechanism is a high-frequency heater, and an induction heating coil extends from the outside of the high-frequency heater. This induction heating coil is used to heat the balance ring and the stainless steel sleeve.

4. The electric motor rotor hot press according to claim 3, characterized in that: The balance ring heating station and the stainless steel sleeve heating station are also equipped with temperature sensing components, and the probe of the temperature sensing components extends into the induction heating coil.

5. The electric motor rotor hot press according to claim 1, characterized in that: The riveting mechanism includes a riveting machine frame, a riveting cylinder, a riveting connecting block, and a mounting base. The riveting machine frame and the mounting base are installed on the riveting station of the workbench. The riveting cylinder is installed on the riveting machine frame. The output shaft of the riveting cylinder is connected to the riveting connecting block, and the riveting connecting block is connected to a dual-workstation displacement mechanism.

6. The electric motor rotor hot press according to claim 5, characterized in that: The riveting station is also equipped with a material sensing component, which is located on one side of the mounting base and is used to detect the material assembly status on the mounting base.

7. The electric motor rotor hot press according to claim 1, characterized in that: The sliding seat's range of motion covers both the balance ring feeding mechanism and the stainless steel sleeve feeding mechanism.

8. The electric motor rotor hot press according to claim 7, characterized in that: The stainless steel sleeve feeding mechanism includes a third base, a third cylinder, and a stainless steel sleeve pusher block. The third cylinder is mounted on the third base, and the stainless steel sleeve pusher block is mounted on the output shaft of the third cylinder. The stainless steel sleeve pusher block is provided with a stainless steel sleeve holding groove.

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