Micro-motor stator pressing device

Abstract

The utility model relates to the technical field of motor production equipment, in particular to a micromotor stator pressing device which comprises a bottom plate, two vertical plates are symmetrically and fixedly installed on the outer wall of the top of the bottom plate, a second hydraulic cylinder is fixedly installed on the outer wall of the top of the bottom plate, and a supporting cylinder is fixedly installed at the output end of the second hydraulic cylinder. A cylindrical shell is arranged on the supporting cylinder, and a bearing is arranged in the cylindrical shell. According to the clamping device, the defects in the prior art are overcome, under the matching action of the clamping plates and the like, the motor is started, the output end of the motor drives the screw rod to rotate, the screw rod rotates to drive the two clamping plates to be close to each other, and the cylindrical shell larger than a supporting cylinder is limited and fixed; and the situation that the machining yield is affected due to the shaking phenomenon when the large cylindrical shell is hammered and pressed is prevented, so that the yield of the large cylindrical shell can be improved, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of motor production equipment, in particular to a micro motor stator pressing device. Background Art

[0002] Micromotors, or microelectric motors, are motors with a diameter of less than 160mm or a rated power of less than 750mW, and are generally powered by batteries. Micromotors are often used in control systems or transmission mechanical loads to detect, analyze, amplify, execute or convert electromechanical signals or energy.

[0003] A micromotor generally includes a casing, an end cover, a rotor, and a stator arranged in the casing. The stator is generally made of magnetic steel. A power connector is provided on the outer side of the end cover, and a brush connected to the power connector is provided on the inner side of the end cover. The rotor includes a rotating shaft, an iron core, a coil winding and a commutator. The iron core is generally composed of multiple iron core sheets, which are connected to the middle part of the rotating shaft through a connecting block. The coil winding is wound on the connecting block between the iron core sheet and the rotating shaft, and the commutator is installed at the rear end of the rotating shaft.

[0004] After searching, the Chinese patent application publication number CN209402377U discloses a micromotor stator pressing device, including a bracket, a supporting cylinder, a positioning pin, a pressure head, a pressure head driving mechanism, a cylinder lifting mechanism, a supporting block and a pre-pressing positioning head; the positioning pin is installed at the upper end of the supporting cylinder, and the pressure head is installed on the power output end of the pressure head driving mechanism and is above the positioning pin.

[0005] A micromotor stator pressing device in the above patent has the following shortcomings: although the device improves the stability of stator pressing and improves the qualified rate of the product, the size of the supporting cylinder on the device is fixed. Therefore, when it is necessary to press a cylindrical shell that is larger than the supporting cylinder, it is impossible to fit the supporting cylinder and install it. When the cylindrical shell is pressed, it is easy to cause the cylindrical shell to shake, thereby affecting the qualified rate of the processing. When the staff installs the cylindrical shell, they may collide with the positioning pin, resulting in low safety. Utility Model Content

[0006] The purpose of the utility model is to solve or at least alleviate the problem in the prior art that when a cylindrical shell that is larger than a supporting cylinder needs to be pressed, it cannot be installed in a fit with the supporting cylinder, and further, when the cylindrical shell is pressed, the cylindrical shell is easily caused to shake, thereby affecting the processing qualification rate.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micro-motor stator pressing device, comprising a bottom plate, two vertical plates are symmetrically fixedly installed on the top outer wall of the bottom plate, a second hydraulic cylinder is fixedly installed on the top outer wall of the bottom plate, a supporting cylinder is fixedly installed on the output end of the second hydraulic cylinder, a cylindrical shell is provided on the supporting cylinder, a bearing is provided in the cylindrical shell, a same pre-stressing positioning plate is slidably installed on the outer walls of one side of the two vertical plates close to each other, the pre-stressing positioning plate is T-shaped, a same box is fixedly installed on the outer walls of one side of the two vertical plates, and a fixing mechanism is provided in the box;

[0008] The fixing mechanism includes a motor, the output end of the motor passes through one side outer wall of the box body and is fixedly installed with a screw, the screw is a bidirectional screw, two clamping plates are symmetrically screwed on the screw, the two clamping plates are both located in the middle position of the cylindrical shell, a support plate is fixedly installed on one side outer wall of the box body, the motor is fixedly installed on the support plate, a positioning hole is opened on the top outer wall of the support cylinder, and the bearing is located in the positioning hole.

[0009] By adopting the above technical solution, the starting motor is controlled, and the output end of the motor will drive the screw to rotate. The rotation of the screw will drive the two clamping plates to approach each other and limit and fix the cylindrical shell that is larger than the supporting cylinder, thereby preventing shaking when the larger cylindrical shell is hammered, thereby affecting the processing qualification rate.

[0010] Optionally, a box groove is formed on an outer wall of one side of the box body, and the two clamping plates are slidably installed in the box groove.

[0011] By adopting the above technical solution, the box groove is provided so that the clamping plate can be slidably installed inside, thereby playing a role of auxiliary installation.

[0012] Optionally, the outer walls of the two vertical plates on one side close to each other are both provided with limiting grooves, and limiting blocks are slidably installed in the two limiting grooves. The two limiting blocks are respectively fixedly installed on the outer walls on both sides of the pre-pressing positioning plate.

[0013] By adopting the above technical solution, the limiting block can be limited by setting the limiting groove.

[0014] Optionally, the length of the limiting block is smaller than the length of the limiting groove.

[0015] By adopting the above technical solution, the length of the limiting block is set to be smaller than the length of the limiting groove, thereby facilitating installation.

[0016] Optionally, the bearing and the positioning hole are the same size.

[0017] By adopting the above technical solution, the bearing and the positioning hole are set to be the same size, thereby facilitating positioning installation.

[0018] Optionally, the outer walls of the two vertical plates that are close to each other are fixedly mounted with the same top plate, the bottom outer wall of the top plate is fixedly mounted with a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly mounted with a hammer plate, and the hammer plate is located above the pre-pressing positioning plate.

[0019] By adopting the above technical solution, by starting the first hydraulic cylinder, the output end of the first hydraulic cylinder will push the hammer plate to move downward and hammer the pre-pressure positioning plate, thereby indirectly acting on the cylindrical shell. During the pressing process, the bearing and the cylindrical shell will not jump or deviate, so that the bearing can be accurately clamped on the end of the cylindrical shell, thereby improving the stability of the stator pressing and the qualified rate of the product.

[0020] Optionally, a fixing plate is fixedly installed on the outer wall of one side where the two vertical plates are close to each other, a cylinder is fixedly installed on the top outer wall of the two fixing plates, a connecting plate is fixedly installed on the output end of the two cylinders, an arc plate is fixedly installed on the top outer wall of the two connecting plates, and the two arc plates are located below the cylindrical shell.

[0021] By adopting the above technical solution, by controlling and starting the two cylinders, the output ends of the two cylinders will push the two connecting plates and the two arc-shaped plates to move upward, and push the cylindrical shell to move upward, thereby completing the disassembly.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] (1) The utility model adopts the cooperation of the clamping plate, etc., by starting the motor, the output end of the motor will drive the screw to rotate, the rotation of the screw will drive the two clamping plates to approach each other and limit and fix the cylindrical shell larger than the supporting cylinder, so as to prevent shaking when the larger cylindrical shell is hammered, thereby affecting the processing qualification rate. Therefore, the qualification rate of the larger cylindrical shell can be improved, and the safety is higher.

[0024] (2) The present invention uses the cooperation of the connecting plate, etc., by setting the limit groove and the limit block, so as to limit the position of the pre-stressing positioning plate, and by controlling and starting the two cylinders, the output ends of the two cylinders will push the two connecting plates and the two arc-shaped plates to move upward, and push the cylindrical shell to move upward, so as to complete the disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2This is a schematic diagram of the supporting cylindrical structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the box structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the limit groove structure of the utility model.

[0029] In the figure: 1. bottom plate; 2. vertical plate; 3. supporting cylinder; 4. top plate; 5. first hydraulic cylinder; 6. hammer plate; 7. supporting plate; 8. motor; 9. box body; 10. fixing plate; 11. cylinder; 12. connecting plate; 13. cylindrical shell; 14. bearing; 15. positioning hole; 16. screw; 17. clamping plate; 18. limiting groove; 19. limiting block; 20. pre-load positioning plate; 21. arc plate; 22. second hydraulic cylinder; 23. box groove. 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 micromotor stator pressing device comprises a base plate 1, and two vertical plates 2 are symmetrically fixedly installed on the top outer wall of the base plate 1. The vertical plates 2 are provided to assist installation. A second hydraulic cylinder 22 is fixedly installed on the top outer wall of the base plate 1, and a supporting cylinder 3 is fixedly installed on the output end of the second hydraulic cylinder 22. The supporting cylinder 3 is provided to assist installation. A cylindrical shell 13 is provided on the supporting cylinder 3, and a bearing 14 is provided in the cylindrical shell 13. The outer walls of one side of the two vertical plates 2 close to each other are slidably installed with the same pre-stressing positioning plate 20, and the pre-stressing positioning plate 20 is provided to assist positioning. The pre-stressing positioning plate 20 is T-shaped, and the outer walls of one side of the two vertical plates 2 are fixedly installed with the same box body 9, and a fixing mechanism is provided in the box body 9; the fixing mechanism can be provided to fix and limit the larger cylindrical shell 13.

[0032] Among them, the fixing mechanism includes a motor 8, the output end of the motor 8 passes through the outer wall of one side of the box body 9 and is fixedly installed with a screw 16, the screw 16 is a bidirectional screw, and two clamping plates 17 are symmetrically screwed on the screw 16. By setting the screw 16, the two clamping plates 17 can be driven to move closer to or away from each other. The two clamping plates 17 are both located in the middle position of the cylindrical shell 13, and a support plate 7 is fixedly installed on the outer wall of one side of the box body 9. The motor 8 is fixedly installed on the support plate 7. A positioning hole 15 is opened on the top outer wall of the support cylinder 3, and the bearing 14 is located in the positioning hole 15. By setting the positioning hole 15, it is convenient to position and install the bearing 14.

[0033] When in use, by controlling the starting motor 8, the output end of the motor 8 will drive the screw 16 to rotate. The rotation of the screw 16 will drive the two clamping plates 17 to approach each other and limit and fix the cylindrical shell 13 that is larger than the supporting cylinder 3, thereby preventing shaking when the larger cylindrical shell 13 is hammered, thereby affecting the processing qualification rate.

[0034] For details, please refer to Figure 3 A box groove 23 is provided on one side outer wall of the box body 9, and the two clamping plates 17 are slidably installed in the box groove 23. By providing the box groove 23, the clamping plate 17 can be slidably installed therein, thereby playing the role of auxiliary installation.

[0035] For details, please refer to Figure 4 The outer walls of the two vertical plates 2 on the sides close to each other are provided with limiting grooves 18, and limiting blocks 19 are slidably installed in the two limiting grooves 18. The two limiting blocks 19 are respectively fixedly installed on the outer walls of the two sides of the pre-pressing positioning plate 20. By setting the limiting grooves 18, the limiting blocks 19 can be limited.

[0036] For details, please refer to Figure 4 , the length of the limit block 19 is smaller than the length of the limit slot 18. By setting the length of the limit block 19 to be smaller than the length of the limit slot 18, it is convenient to install.

[0037] For details, please refer to Figure 1 and Figure 2 , the bearing 14 is the same size as the positioning hole 15. By setting the bearing 14 and the positioning hole 15 to be the same size, positioning installation is facilitated.

[0038] For details, please refer to Figure 1-2The outer walls of the two vertical plates 2 on one side close to each other are fixedly mounted with the same top plate 4, the bottom outer wall of the top plate 4 is fixedly mounted with a first hydraulic cylinder 5, the output end of the first hydraulic cylinder 5 is fixedly mounted with a hammer plate 6, and the hammer plate 6 is located above the pre-pressing positioning plate 20. By starting the first hydraulic cylinder 5, the output end of the first hydraulic cylinder 5 will push the hammer plate 6 to move downward and hammer the pre-pressing positioning plate 20, indirectly acting on the cylindrical shell 13. During the pressing process, the bearing 14 and the cylindrical shell 13 will not jump or deviate, so that the bearing 14 is accurately clamped on the end of the cylindrical shell 13, which improves the stability of the stator pressing and improves the qualified rate of the product.

[0039] For details, please refer to Figure 1 The outer walls of the two vertical plates 2 on one side close to each other are fixedly mounted with a fixing plate 10, the top outer walls of the two fixing plates 10 are fixedly mounted with a cylinder 11, the output ends of the two cylinders 11 are fixedly mounted with a connecting plate 12, the top outer walls of the two connecting plates 12 are fixedly mounted with an arc-shaped plate 21, and the two arc-shaped plates 21 are located below the cylindrical shell 13. By controlling and starting the two cylinders 11, the output ends of the two cylinders 11 will push the two connecting plates 12 and the two arc-shaped plates 21 to move upward, and push the cylindrical shell 13 to move upward, and the disassembly is completed.

[0040] Working principle: When in use, first put the cylindrical shell 13 of the stator on the supporting cylinder 3, and then place the bearing 14 in the positioning hole 15 on the supporting cylinder 3, so that the bearing 14 can be limited, and then start the second hydraulic cylinder 22, the output end of the second hydraulic cylinder 22 will push the supporting cylinder 3, the cylindrical shell 13 and the bearing 14 to move upward and slightly lift the pre-stressing positioning plate 20, at this time, the motor 8 can be controlled to start, the output end of the motor 8 will drive the screw 16 to rotate, the rotation of the screw 16 will drive the two clamping plates 17 to approach each other and limit and fix the cylindrical shell 13 larger than the supporting cylinder 3, to prevent shaking when the larger cylindrical shell 13 is hammered, thereby affecting the processing qualification rate;

[0041] Then, by starting the first hydraulic cylinder 5, the output end of the first hydraulic cylinder 5 will push the hammer plate 6 to move downward and hammer the pre-pressing positioning plate 20, indirectly acting on the cylindrical shell 13. During the pressing process, the bearing 14 and the cylindrical shell 13 will not jump or deviate, so that the bearing 14 is accurately clamped on the end of the cylindrical shell 13, thereby improving the stability of the stator pressing and improving the qualified rate of the product;

[0042] When the cylindrical shell 13 needs to be disassembled after the pressing is completed, the two cylinders 11 are started by control, and the output ends of the two cylinders 11 will push the two connecting plates 12 and the two arc plates 21 upward, and push the cylindrical shell 13 upward to complete the disassembly.

[0043] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A micromotor stator pressing device, comprising a base plate (1), two vertical plates (2) are symmetrically fixedly mounted on the top outer wall of the base plate (1), a second hydraulic cylinder (22) is fixedly mounted on the top outer wall of the base plate (1), a supporting cylinder (3) is fixedly mounted on the output end of the second hydraulic cylinder (22), a cylindrical housing (13) is provided on the supporting cylinder (3), a bearing (14) is provided inside the cylindrical housing (13), and the characteristics are: The outer walls of one side of the two vertical plates (2) close to each other are both slidably mounted with a same pre-compression positioning plate (20), the pre-compression positioning plate (20) is T-shaped, and the outer walls of one side of the two vertical plates (2) are both fixedly mounted with a same box body (9), and a fixing mechanism is provided inside the box body (9); The fixing mechanism comprises a motor (8), the output end of the motor (8) passes through an outer wall of one side of the box body (9) and is fixedly mounted with a screw (16), the screw (16) is a bidirectional screw, two clamping plates (17) are symmetrically screwed on the screw (16), and the two clamping plates (17) are both located in the middle position of the cylindrical shell (13), a support plate (7) is fixedly mounted on the outer wall of one side of the box body (9), the motor (8) is fixedly mounted on the support plate (7), a positioning hole (15) is opened on the top outer wall of the support cylinder (3), and the bearing (14) is located in the positioning hole (15).

2. A micromotor stator pressing device according to claim 1, characterized in that: A box groove (23) is provided on one side outer wall of the box body (9), and the two clamping plates (17) are both slidably installed in the box groove (23).

3. The micromotor stator pressing device according to claim 1, characterized in that: The outer walls of the two vertical plates (2) on one side close to each other are both provided with a limiting groove (18), and the limiting blocks (19) are slidably installed in the two limiting grooves (18). The two limiting blocks (19) are respectively fixedly installed on the outer walls of the two sides of the pre-pressing positioning plate (20).

4. A micromotor stator pressing device according to claim 3, characterized in that: The length of the limiting block (19) is smaller than the length of the limiting groove (18).

5. The micromotor stator pressing device according to claim 1, characterized in that: The bearing (14) and the positioning hole (15) are of the same size.

6. The micromotor stator pressing device according to claim 1, characterized in that: The outer walls of the two vertical plates (2) on one side close to each other are both fixedly mounted with a same top plate (4), the bottom outer wall of the top plate (4) is fixedly mounted with a first hydraulic cylinder (5), the output end of the first hydraulic cylinder (5) is fixedly mounted with a hammer plate (6), and the hammer plate (6) is located above the pre-pressing positioning plate (20).

7. The micromotor stator pressing device according to claim 1, characterized in that: A fixing plate (10) is fixedly mounted on the outer walls of one side of the two vertical plates (2) close to each other, a cylinder (11) is fixedly mounted on the top outer walls of the two fixing plates (10), a connecting plate (12) is fixedly mounted on the output ends of the two cylinders (11), an arc-shaped plate (21) is fixedly mounted on the top outer walls of the two connecting plates (12), and the two arc-shaped plates (21) are located below the cylindrical outer shell (13).

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