Annular magnetic steel inner hole chamfering device

Abstract

The utility model discloses an annular magnetic steel inner hole chamfering device which comprises a table plate, a feeding conveying belt is installed above the table plate, a positioning baffle is installed at the discharging end of the feeding conveying belt, a centering clamping assembly is arranged on the discharging end side of the feeding conveying belt and comprises a transverse moving air cylinder, a shaft seat is connected to the output end of the transverse moving air cylinder, and the shaft seat is provided with a clamping groove. A mounting shaft is mounted on one side of the shaft seat, an inflatable chuck is mounted on the mounting shaft, a rotating motor is mounted on the other side of the shaft seat, the output end of the rotating motor is connected with the mounting shaft, and a grinding head assembly is mounted on one side of the centering clamping assembly. According to the utility model, the problem that the concentricity cannot be ensured due to poor consistency of the inner hole caused by shrinkage of the annular magnetic steel can be effectively solved, and the problem that the chamfer of the inner hole of the annular magnetic steel is easy to crack or is not uniform is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of chamfering the inner hole of annular magnets, and specifically relates to a device for chamfering the inner hole of annular magnets. Background Technology

[0002] In magnetic material products, there is a ring-shaped product specification. Since most magnetic material products are pressed and molded, the inner chamfer cannot be achieved during mold forming due to factors such as demolding. Therefore, after the product is sintered, a mechanical chamfering process is required in the next grinding step to complete the chamfering.

[0003] Traditional bench drill structures achieve positioning by clamping the circumference of magnetic ring products. However, due to shrinkage after sintering, the inner hole of the magnetic ring product is not very consistent, so concentricity cannot be guaranteed, which makes the product prone to cracking or uneven chamfering.

[0004] In production, chamfering is mostly done manually using a conical grinding wheel. While manual chamfering can solve some of the inconsistency issues, it suffers from low efficiency, a harsh working environment, and the inability to fully meet the chamfering requirements of the products. Utility Model Content

[0005] The purpose of this invention is to provide a device for chamfering the inner hole of annular magnets, thereby solving the problems mentioned in the background art. The device for chamfering the inner hole of annular magnets provided by this invention has the characteristic of solving the problem of chamfer dimensional deviation caused by inaccurate positioning reference due to inconsistent shrinkage after sintering.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for chamfering the inner hole of an annular magnet, comprising a platform, a feeding conveyor belt mounted above the platform, a positioning baffle mounted on the discharge end of the feeding conveyor belt, a centering clamping assembly provided on the discharge end side of the feeding conveyor belt, the centering clamping assembly comprising a transverse cylinder, a shaft seat connected to the output end of the transverse cylinder, an mounting shaft mounted on one side of the shaft seat, an air-expanding chuck mounted on the mounting shaft, a rotary motor mounted on the other side of the shaft seat, the output end of the rotary motor connected to the mounting shaft, and a grinding head assembly mounted on one side of the centering clamping assembly.

[0007] To chamfer the inner hole of the annular magnet, the grinding head assembly further includes a longitudinal displacement cylinder, a motor mount connected to the output end of the longitudinal displacement cylinder, a high-speed motor mounted on the motor mount, and a grinding head mounted on the output end of the high-speed motor.

[0008] To further guide the conveying of the annular magnet, guide plates are installed on both sides above the feed conveyor belt.

[0009] To further avoid the air-expanding clamp, a U-shaped groove is provided on the positioning baffle.

[0010] To guide the chamfered annular magnet into the collection box, a guide rail is further included, which is located below the chamfering station.

[0011] To block the incoming annular magnet and allow it to fit onto the air-expanding clamp, a blocking cylinder is installed on one side of the feed conveyor belt's outlet end, with a blocking block mounted on the cylinder's output end. The thickness of the blocking block is equal to the thickness of the annular magnet.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a feeding conveyor belt to transport the annular magnet backward, thereby feeding the annular magnet. A positioning baffle is used to position the annular magnet. The air-expanding chuck of the centering clamping assembly centers and clamps the annular magnet. Then, the grinding head assembly chamfers the inner hole of the annular magnet. Compared with the positioning method in the prior art, this utility model can effectively solve the problem that the inner hole of the annular magnet is not consistent due to shrinkage, thus making it impossible to guarantee concentricity. It also avoids the problem that the inner hole chamfer of the annular magnet is prone to cracking or uneven chamfering.

[0014] 2. This utility model uses a positioning baffle to position the annular magnets, ensuring the consistency of the relative position of each annular magnet and the air chuck, thereby ensuring the accuracy of positioning.

[0015] 3. A blocking cylinder is installed on one side of the discharge end of the feeding conveyor belt of this utility model. A blocking block is installed on the output end of the blocking cylinder. The blocking cylinder blocks the incoming annular magnet, so that the annular magnet can be fitted onto the air-expanding clamp. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the centering and clamping assembly of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the grinding head assembly of this utility model.

[0019] Figure 4 This is a schematic diagram of the positioning baffle of this utility model.

[0020] In the diagram: 1. Table; 2. Grinding head assembly; 21. Longitudinal movement cylinder; 22. Motor base; 23. High-speed motor; 24. Grinding head; 3. Guide rail; 4. Centering and clamping assembly; 41. Transverse movement cylinder; 42. Air chuck; 43. Mounting shaft; 44. Shaft seat; 45. Rotary motor; 5. Positioning baffle; 51. U-shaped groove; 6. Blocking cylinder; 7. Feed conveyor belt; 8. Guide plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figures 1-4 The present invention provides the following technical solution: a device for chamfering the inner hole of an annular magnet, comprising a platform 1, a feeding conveyor belt 7 installed above the platform 1, a positioning baffle 5 installed on the discharge end of the feeding conveyor belt 7, a centering clamping assembly 4 provided on the discharge end side of the feeding conveyor belt 7, the centering clamping assembly 4 comprising a transverse cylinder 41, a shaft seat 44 connected to the output end of the transverse cylinder 41, an mounting shaft 43 installed on one side of the shaft seat 44, an air-expanding chuck 42 installed on the mounting shaft 43, a rotary motor 45 installed on the other side of the shaft seat 44, the output end of the rotary motor 45 being connected to the mounting shaft 43 via a coupling, and a grinding head assembly 2 installed on one side of the centering clamping assembly 4.

[0024] By adopting the above technical solution, this utility model uses the feeding conveyor belt 7 to convey the annular magnet backward, realizes the feeding of the annular magnet, uses the positioning baffle 5 to position the annular magnet, uses the air-expanding chuck 42 of the centering clamping assembly 4 to center and clamp the annular magnet, and then uses the grinding head assembly 2 to chamfer the inner hole of the annular magnet. Compared with the positioning method in the prior art, this utility model can effectively solve the problem that the annular magnet has poor inner hole consistency due to shrinkage, thus making it impossible to guarantee concentricity, and avoids the problem that the inner hole chamfer of the annular magnet is prone to cracking or uneven chamfering.

[0025] Specifically, the grinding head assembly 2 includes a longitudinal movement cylinder 21, a motor base 22 connected to the output end of the longitudinal movement cylinder 21, a high-speed motor 23 mounted on the motor base 22, and a grinding head 24 mounted on the output end of the high-speed motor 23.

[0026] By adopting the above technical solution, the grinding head 24 is rotated by the high-speed motor 23 to chamfer the inner hole of the annular magnet.

[0027] Specifically, guide plates 8 are installed on both sides above the feed conveyor belt 7.

[0028] By adopting the above technical solution, the conveying of the annular magnet is guided.

[0029] Specifically, the positioning baffle 5 is provided with a U-shaped groove 51.

[0030] The above technical solution is used to avoid the air-expanding clamp 42.

[0031] Example 2

[0032] The difference between this embodiment and embodiment 1 is that, specifically, it also includes a guide rail 3, which is located below the chamfering station.

[0033] By adopting the above technical solution, the chamfered annular magnet is introduced into the collection box.

[0034] Example 3

[0035] The difference between this embodiment and embodiment 1 is that, specifically, a blocking cylinder 6 is installed on one side of the discharge end of the feeding conveyor belt 7, and a blocking block is installed on the output end of the blocking cylinder 6. The thickness of the blocking block is equal to the thickness of the annular magnet.

[0036] By adopting the above technical solution, the incoming annular magnet is blocked by the blocking cylinder 6, so that the annular magnet can be fitted onto the air-expanding chuck 42.

[0037] In this utility model, the longitudinal movement cylinder 21 is selected from Airtac STWA32X25S; the high-speed motor 23 is selected from Haozhi DGZM-080100 / 1.2B1-DWQ; the transverse movement cylinder 41 is selected from Airtac STWA32X125S; the air chuck 42 is selected from Derui JAC-15E+ double cone type; the rotary motor 45 is selected from Jiemicon 60JASM504230K-17BCQ(400w) type; the blocking cylinder 6 is selected from Airtac TR6X10S type; and the feeding conveyor belt 7 is selected from Yiheda KPS01-B120-L1500-40-TA220-SCM-25-AT type. In this utility model, solenoid valves are installed on the air ends of the cylinders and the air chuck 42, and the automated actions involved are all controlled by a PLC controller.

[0038] The working steps of this utility model are as follows:

[0039] (1) The blocking cylinder 6 is initially in the extended state, and the sintered annular magnet is conveyed backward by the feeding conveyor belt 7.

[0040] (2) The transverse cylinder 41 drives the air expansion chuck 42 to move to the material pick-up point, and the blocking cylinder 6 retracts. The first ring magnet is put on the air expansion chuck 42 under the conveying of the feeding conveyor belt 7. The air expansion chuck 42 expands with air to clamp the ring magnet. The positioning baffle 5 positions the ring magnet to ensure the consistency of the relative position of each ring magnet and the air expansion chuck 42.

[0041] (3) The transverse cylinder 41 drives the annular magnet to the chamfering station. At the same time as the transverse cylinder 41 moves, the blocking cylinder 6 is pushed out to block the next annular magnet.

[0042] (4) The rotary motor 45 drives the ring magnet to rotate, the high-speed motor 23 drives the grinding head 24 to rotate, and the longitudinal cylinder 21 drives the grinding head 24 to move and contact the ring magnet to perform chamfering.

[0043] (5) When the annular magnet rotates to the set number of revolutions, the chamfering is completed, the air chuck 42 retracts, the annular magnet enters the collection box through the guide rail 3, the longitudinal cylinder 21 is reset, and it waits for the next action.

[0044] In summary, this invention uses a feeding conveyor belt 7 to convey the annular magnets backward, achieving feeding; a positioning baffle 5 to position the annular magnets; and an air-expanding chuck 42 of the centering clamping assembly 4 to center and clamp the annular magnets. Then, the grinding head assembly 2 chamfers the inner hole of the annular magnets. Compared to existing positioning methods, this invention effectively solves the problem of poor inner hole consistency due to shrinkage of the annular magnets, thus preventing concentricity and avoiding cracking or uneven chamfering of the annular magnets' inner holes. The positioning baffle 5 ensures the consistency of the relative position of each annular magnet with the air-expanding chuck 42, guaranteeing positioning accuracy. A blocking cylinder 6 is installed on one side of the discharge end of the feeding conveyor belt 7, with a blocking block installed on its output end. The blocking cylinder 6 blocks the incoming annular magnets, allowing them to fit onto the air-expanding chuck 42.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for chamfering the inner hole of an annular magnet, comprising a platform, characterized in that: A feeding conveyor belt is installed above the platform. A positioning baffle is installed on the discharge end of the feeding conveyor belt. A centering clamping assembly is provided on the discharge end side of the feeding conveyor belt. The centering clamping assembly includes a transverse cylinder. A shaft seat is connected to the output end of the transverse cylinder. An installation shaft is installed on one side of the shaft seat. An air-expanding chuck is installed on the installation shaft. A rotary motor is installed on the other side of the shaft seat. The output end of the rotary motor is connected to the installation shaft. A grinding head assembly is installed on one side of the centering clamping assembly.

2. The device for chamfering the inner hole of an annular magnet according to claim 1, characterized in that: The grinding head assembly includes a longitudinal displacement cylinder, a motor mount is connected to the output end of the longitudinal displacement cylinder, a high-speed motor is mounted on the motor mount, and a grinding head is mounted on the output end of the high-speed motor.

3. The device for chamfering the inner hole of an annular magnet according to claim 1, characterized in that: Guide plates are installed on both sides above the feeding conveyor belt.

4. The device for chamfering the inner hole of an annular magnet according to claim 1, characterized in that: The positioning baffle is provided with a U-shaped groove.

5. The device for chamfering the inner hole of an annular magnet according to claim 1, characterized in that: It also includes a guide rail, which is located below the chamfering station.

6. The device for chamfering the inner hole of an annular magnet according to claim 1, characterized in that: A blocking cylinder is installed on one side of the discharge end of the feeding conveyor belt, and a blocking block is installed on the output end of the blocking cylinder.

7. The device for chamfering the inner hole of an annular magnet according to claim 6, characterized in that: The thickness of the blocking block is equal to the thickness of the annular magnet.

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