Motor end cover press-fitting machine

Abstract

The utility model discloses a motor end cover pressing machine which comprises a machine body, a workbench is fixed in the machine body, and a pressing assembly used for pressing a motor end cover to be pressed on a motor shell is arranged on the machine body. The press-fitting assembly comprises a servo electric cylinder fixed to the top of the machine body, a limiting cover connected with the output end of the servo electric cylinder, a lifting table fixed to the bottom of the limiting cover and a press-fitting barrel fixed to the bottom of the lifting table and used for press-fitting the motor end cover to a motor shell. A limiting block is integrally formed in the position, close to the lower end of the output end of the servo electric cylinder, of the outer wall of the output end of the servo electric cylinder, a limiting groove in sliding fit with the limiting block is formed in the bottom of the limiting cover, a pressure sensor located in the limiting groove is fixed to the top of the lifting table, and a position sensor used for monitoring the position of the lifting table is arranged in the machine body. And a display in communication connection with the position sensor and the pressure sensor is arranged on the machine body. The motor end cover press-fitting device is beneficial for improving the press-fitting yield of the motor end cover.

Description

Technical Field

[0001] The utility model relates to the technical field of presses, in particular to a motor end cover press-fitting machine. Background Art

[0002] A motor generally includes a motor housing, a motor stator disposed inside the motor housing, a motor end cover snap-fitted with the motor housing, and a motor rotor disposed on the motor stator. During assembly, the motor stator is first installed inside the motor housing, then the motor rotor is installed on the motor stator, and finally the motor end cover is press-fitted onto the motor housing to enclose the motor rotor.

[0003] At present, some motor end covers and motor housings (the motor housing in the text refers to the motor base) are in a tight fit, and a press is required to press-fit the motor end cover onto the motor housing. Due to tolerances and the limitations of hydraulic or pneumatic presses, the pressure and pressing height of the end cover cannot be controlled. Some are pressed too tightly, causing abnormal noises and damage to the motor, and some are not pressed on, resulting in the need for secondary processing and easily causing scrap. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a motor end cover press-fitting machine.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A motor end cover press-fitting machine includes a machine body. A workbench is fixed inside the machine body. A placement groove for cooperating with the motor housing to be press-fitted is provided at the top of the workbench. A press-fitting assembly for press-fitting the motor end cover to be press-fitted onto the motor housing is provided on the machine body. The press-fitting assembly includes a servo electric cylinder fixed to the top of the machine body, a limit cover connected to the output end of the servo electric cylinder, a lifting table fixed to the bottom of the limit cover, and a press-fitting cylinder fixed to the bottom of the lifting table and used to press-fit the motor end cover onto the motor housing. The output end of the servo electric cylinder penetrates through the limit cover and is in clearance fit with the limit cover. A limit block is integrally formed on the outer wall of the output end of the servo electric cylinder near the lower end of the output end of the servo electric cylinder. A limit groove for sliding cooperation with the limit block is provided at the bottom of the limit cover. A pressure sensor located in the limit groove is fixed to the top of the lifting table. A position sensor for monitoring the position of the lifting table is provided inside the machine body. A display is provided on the machine body and is communicatively connected to both the position sensor and the pressure sensor.

[0006] By adopting the above technical solution, after the servo electric cylinder works, it drives the lifting table, the limit cover, the pressure sensor and the pressing cylinder to move downward synchronously. When the lower end of the pressing cylinder abuts against the top of the motor end cover, as the servo electric cylinder continues to work, the lower end of the pressing cylinder receives the pressure transmitted from the motor housing at the top of the workbench. Since the pressure sensor is arranged on the top of the lifting table and the limiting block is in sliding fit with the limit cover, the output end of the servo electric cylinder transmits pressure to the pressure sensor. The pressure sensor detects this part of the pressure in real time and transmits it to the display. The position sensor monitors the position of the lifting table and transmits it to the display. Under the combined action of the pressure sensor and the position sensor, the pressing height can be controlled, which is beneficial to improving the qualified rate of the motor end cover pressing.

[0007] Further, the axis of the pressing cylinder coincides with the axis of the output shaft of the motor housing. An upper avoidance groove for avoiding the output shaft of the motor housing is arranged in the pressing cylinder, and a lower avoidance groove for avoiding the output shaft of the motor housing is arranged in the machine body.

[0008] By adopting the above technical solution, the arrangement of the upper avoidance groove and the lower avoidance groove plays a good role in avoiding the output shaft of the motor housing.

[0009] Further, a lower notch for the output shaft of the motor housing to be placed is arranged on one side of the shelf plate in the machine body, a middle notch for the output shaft of the motor housing to be placed is arranged on one side of the workbench, an upper notch for the output end of the servo electric cylinder to be clamped is arranged on one side of the limit cover, a fixing rod is fixed on the top of the shelf plate in the machine body, a mounting plate is fixed at the upper end of the fixing rod, and the output end of the servo electric cylinder penetrates through the mounting plate and is in clearance fit with the mounting plate;

[0010] A plurality of linear bearings are fixed at the bottom of the mounting plate. A movable rod slidingly matched with the linear bearing is arranged through each linear bearing. The upper ends of the plurality of movable rods are jointly fixed with a U-shaped plate body sleeved outside the servo electric cylinder. The lower ends of the plurality of movable rods are all fixed with the top of the lifting table. A connecting plate is fixed on the fixing rod, and the position sensor is fixed on the connecting plate.

[0011] By adopting the above technical solution, after the servo electric cylinder works, the output end of the servo electric cylinder drives the lifting table to move downward. The lifting table drives the movable rod and the U-shaped plate body to move downward synchronously. Under the combined action of the linear bearings, the stability of the synchronous downward movement of the lifting table, the limit cover, the pressure sensor and the pressing cylinder is ensured.

[0012] Furthermore, T-shaped connecting ears are integrally formed on both sides of the motor end cover. Two sets of pressing components are arranged in the machine body for pressing the T-shaped connecting ears on both sides against the motor housing. Each pressing component includes a fixed seat fixed on a frame plate in the machine body, a cylinder fixed on the fixed seat, and a pushing member fixed to the end of the piston rod of the cylinder. A pressure groove cooperating with the T-shaped connecting ear is provided at one end of the pushing member close to the motor housing.

[0013] By adopting the above technical solution, after the motor end cover is pressed onto the motor housing, the piston rod of the cylinder pushes the pushing member, so that the pressure groove on the pushing member is engaged with the T-shaped connecting ear until the T-shaped connecting ear is pressed against the motor housing.

[0014] Furthermore, there are four fixing rods which are distributed in a rectangular array.

[0015] Furthermore, a cable drag chain is arranged in the machine body.

[0016] By adopting the above technical solution, the setting of the cable drag chain plays a good role in protecting and guiding the power supply line of the pressure sensor, ensuring the normal use of the pressure sensor.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. In this application, with the cooperation of the pressure sensor and the position sensor, the pressing height can be controlled, which is beneficial to improving the qualified rate of the motor end cover pressing;

[0019] 2. In this application, after the servo electric cylinder works, the output end of the servo electric cylinder drives the lifting table to move downward, and the lifting table drives the movable rod and the U-shaped plate body to move downward synchronously. With the cooperation of the linear bearing, the stability of the synchronous downward movement of the lifting table, the limit cover, the pressure sensor and the pressing cylinder is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the embodiment of the utility model;

[0021] Figure 2 is Figure 1 the structural schematic diagram of another perspective in

[0022] Figure 3 is the structural schematic diagram of the embodiment of the utility model for highlighting the pressing component;

[0023] Figure 4 is the structural schematic diagram of the embodiment of the utility model for highlighting the pressing assembly;

[0024] Figure 5 is the structural schematic diagram of the workbench in the embodiment of the utility model;

[0025] Figure 6 is a schematic structural diagram of the motor end cover in the embodiment of the present utility model;

[0026] Figure 7 is a schematic structural diagram of the limit cover in the embodiment of the present utility model.

[0027] In the figure: 1, body; 11, display; 12, lower avoidance groove; 13, lower notch; 14, middle notch; 15, fixed rod; 151, connecting plate; 16, cable drag chain; 17, control panel; 2, workbench; 21, placement groove; 3, motor end cover; 31, T-shaped connecting ear; 4, motor housing; 5, pressing assembly; 51, servo electric cylinder; 511, limit block; 52, limit cover; 521, limit groove; 522, upper notch; 53, lifting table; 531, pressure sensor; 54, pressing cylinder; 541, upper avoidance groove; 6, position sensor; 7, mounting plate; 71, linear bearing; 8, movable rod; 81, U-shaped plate body; 9, pressing component; 91, fixed seat; 92, cylinder; 93, pushing member; 931, pressing groove. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0029] Such as Figures 1-7As shown in the figure, an embodiment of the present application discloses a motor end cover press-fitting machine, which includes a machine body 1. A workbench 2 is fixed inside the machine body 1. A placement groove 21 for cooperating with a motor housing 4 to be press-fitted is arranged at the top of the workbench 2. A press-fitting assembly 5 for press-fitting a motor end cover 3 to be press-fitted onto the motor housing 4 is arranged on the machine body 1. The press-fitting assembly 5 includes a servo electric cylinder 51 fixed to the top of the machine body 1, a limit cover 52 connected to the output end of the servo electric cylinder 51, a lifting platform 53 fixed to the bottom of the limit cover 52, and a press-fitting cylinder 54 fixed to the bottom of the lifting platform 53 and used for press-fitting the motor end cover 3 onto the motor housing 4. The output end of the servo electric cylinder 51 penetrates through the limit cover 52 and is in clearance fit with the limit cover 52. A limit block 511 is integrally formed on the outer wall of the output end of the servo electric cylinder 51 near the lower end of the output end of the servo electric cylinder 51. A limit groove 521 slidably cooperating with the limit block 511 is arranged at the bottom of the limit cover 52. A pressure sensor 531 located in the limit groove 521 is fixed to the top of the lifting platform 53. A position sensor 6 for monitoring the position of the lifting platform 53 is arranged inside the machine body 1. A display 11 communicatively connected to both the position sensor 6 and the pressure sensor 531 is arranged on the machine body 1.

[0030] After the servo electric cylinder 51 works, it drives the lifting platform 53, the limit cover 52, the pressure sensor 531, and the press-fitting cylinder 54 to move downward synchronously. When the lower end of the press-fitting cylinder 54 abuts against the top of the motor end cover 3, as the servo electric cylinder 51 continues to work, the lower end of the press-fitting cylinder 54 receives the pressure transmitted from the motor housing 4 at the top of the workbench 2. Since the pressure sensor 531 is arranged at the top of the lifting platform 53, the limit block 511 is slidably matched with the limit cover 52, and the output end of the servo electric cylinder 51 transmits pressure to the pressure sensor 531. The pressure sensor 531 detects this part of the pressure in real time and transmits it to the display 11. The position sensor 6 monitors the position of the lifting platform 53 and transmits it to the display 11. Under the combined action of the pressure sensor 531 and the position sensor 6, the pressing height can be controlled, which is beneficial to improving the yield rate of the press-fitting of the motor end cover 3.

[0031] To play a good role in avoiding the output shaft of the motor housing 4, the axis of the press-fitting cylinder 54 coincides with the axis of the output shaft of the motor housing 4. An upper avoidance groove 541 for avoiding the output shaft of the motor housing 4 is arranged inside the press-fitting cylinder 54. A lower avoidance groove 12 for avoiding the output shaft of the motor housing 4 is arranged inside the machine body 1.

[0032] On one side of the mounting plate inside the machine body 1, there is a lower notch 13 for the output shaft of the motor housing 4 to be placed. On one side of the workbench 2, there is a middle notch 14 for the output shaft of the motor housing 4 to be placed. On one side of the limit cover 52, there is an upper notch 522 for the output end of the servo cylinder 51 to be snapped into. At the top of the mounting plate inside the machine body 1, a fixed rod 15 is fixed. At the upper end of the fixed rod 15, a mounting plate 7 is fixed. The output end of the servo cylinder 51 passes through the mounting plate 7 and is in clearance fit with the mounting plate 7. At the bottom of the mounting plate 7, a plurality of linear bearings 71 are fixed. A movable rod 8 that is slidably engaged with the linear bearing 71 is disposed through each linear bearing 71. At the upper ends of the plurality of movable rods 8, a U-shaped plate body 81 sleeved outside the servo cylinder 51 is fixedly connected together. At the lower ends of the plurality of movable rods 8, they are all fixedly connected to the top of the lifting table 53. A connecting plate 151 is fixed on the fixed rod 15. The position sensor 6 is fixed on the connecting plate 151.

[0033] After the servo cylinder 51 works, the output end of the servo cylinder 51 drives the lifting table 53 to move downward. The lifting table 53 drives the movable rod 8 and the U-shaped plate body 81 to move downward synchronously. Under the cooperative action of the linear bearing 71, the stability of the synchronous downward movement of the lifting table 53, the limit cover 52, the pressure sensor 531, and the pressing cylinder 54 is ensured.

[0034] On both sides of the motor end cover 3, T-shaped connecting lugs 31 are integrally formed. Inside the machine body 1, there are two sets of pressing components 9 respectively used to press the T-shaped connecting lugs 31 on both sides onto the motor housing 4. The pressing component 9 includes a fixed seat 91 fixed on the mounting plate inside the machine body 1, a cylinder 92 fixed on the fixed seat 91, and a pushing member 93 fixed to the end of the piston rod of the cylinder 92. At one end of the pushing member 93 close to the motor housing 4, there is a pressing groove 931 that cooperates with the T-shaped connecting lug 31. After the motor end cover 3 is pressed onto the motor housing 4, the piston rod of the cylinder 92 pushes the pushing member 93, so that the pressing groove 931 on the pushing member 93 is engaged with the T-shaped connecting lug 31 until the T-shaped connecting lug 31 is pressed onto the motor housing 4.

[0035] To enhance the stability of the mounting plate 7 during use and the aesthetics of the equipment, there are four fixed rods 15 and they are distributed in a rectangular array. In this embodiment, a cable drag chain 16 is provided inside the machine body 1. The provision of the cable drag chain 16 plays a good role in protecting and guiding the power supply line of the pressure sensor 531, ensuring the normal use of the pressure sensor 531. In this embodiment, to control each electrical component, a control panel 17 electrically connected to the display 11, the servo cylinder 51, and the cylinder 92 is fixed on the machine body 1.

[0036] In this embodiment, the working principle of a motor end cover press-fitting machine is as follows: After the servo electric cylinder 51 works, it drives the lifting table 53, the limit cover 52, the pressure sensor 531, and the press-fitting cylinder 54 to move downward synchronously. When the lower end of the press-fitting cylinder 54 abuts against the top of the motor end cover 3, as the servo electric cylinder 51 continues to work, the lower end of the press-fitting cylinder 54 receives the pressure transmitted from the motor housing 4 on the top of the workbench 2. Since the pressure sensor 531 is arranged on the top of the lifting table 53 and the limit block 511 is in sliding fit with the limit cover 52, the output end of the servo electric cylinder 51 transmits pressure to the pressure sensor 531. The pressure sensor 531 detects this part of the pressure in real time and transmits it to the display 11. The position sensor 6 monitors the position of the lifting table 53 and transmits it to the display 11. Under the combined action of the pressure sensor 531 and the position sensor 6, the pressing height can be controlled, which is beneficial to improving the qualified rate of the press-fitting of the motor end cover 3.

[0037] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A motor end cover press-fitting machine, characterized in that: It includes a machine body (1), a workbench (2) is fixed inside the machine body (1), a placement groove (21) for cooperating with the motor housing (4) to be press-fitted is arranged at the top of the workbench (2), a press-fitting assembly (5) for press-fitting the motor end cover (3) to be press-fitted onto the motor housing (4) is arranged on the machine body (1), the press-fitting assembly (5) includes a servo electric cylinder (51) fixed to the top of the machine body (1), a limit cover (52) connected to the output end of the servo electric cylinder (51), a lifting table (53) fixed to the bottom of the limit cover (52), and a press-fitting cylinder (54) fixed to the bottom of the lifting table (53) and used for press-fitting the motor end cover (3) onto the motor housing (4). The output end of the servo electric cylinder (51) penetrates through the limit cover (52) and is in clearance fit with the limit cover (52). A limit block (511) is integrally formed on the outer wall of the output end of the servo electric cylinder (51) near the lower end of the output end of the servo electric cylinder (51). A limit groove (521) slidably cooperating with the limit block (511) is arranged at the bottom of the limit cover (52). A pressure sensor (531) located in the limit groove (521) is fixed to the top of the lifting table (53). A position sensor (6) for monitoring the position of the lifting table (53) is arranged inside the machine body (1). A display (11) communicatively connected to both the position sensor (6) and the pressure sensor (531) is arranged on the machine body (1).

2. The motor end cover press-fitting machine according to claim 1, characterized in that: The axis of the output shaft of the press-fitting cylinder (54) coincides with the axis of the output shaft of the motor housing (4). An upper avoidance groove (541) for avoiding the output shaft of the motor housing (4) is arranged inside the press-fitting cylinder (54). A lower avoidance groove (12) for avoiding the output shaft of the motor housing (4) is arranged inside the machine body (1).

3. The motor end cover press-fitting machine according to claim 1, characterized in that: A lower notch (13) for the output shaft of the motor housing (4) to be placed is arranged on one side of the shelf plate inside the machine body (1). A middle notch (14) for the output shaft of the motor housing (4) to be placed is arranged on one side of the workbench (2). An upper notch (522) for the output end of the servo electric cylinder (51) to be clamped is arranged on one side of the limit cover (52). A fixing rod (15) is fixed to the top of the shelf plate inside the machine body (1). A mounting plate (7) is fixed to the upper end of the fixing rod (15). The output end of the servo electric cylinder (51) penetrates through the mounting plate (7) and is in clearance fit with the mounting plate (7). A plurality of linear bearings (71) are fixed to the bottom of the mounting plate (7). A movable rod (8) slidably cooperating with the linear bearing (71) is arranged through each linear bearing (71). The upper ends of the plurality of movable rods (8) are jointly fixed with a U-shaped plate body (81) sleeved outside the servo electric cylinder (51). The lower ends of the plurality of movable rods (8) are all fixed to the top of the lifting table (53). A connecting plate (151) is fixed to the fixing rod (15). The position sensor (6) is fixed to the connecting plate (151).

4. The motor end cover press-fitting machine according to claim 1, characterized in that: On both sides of the motor end cover (3), there are integrally formed T-shaped connecting lugs (31). Inside the machine body (1), there are two pressing components (9) respectively used to press the T-shaped connecting lugs (31) on both sides against the motor housing (4). The pressing component (9) includes a fixed seat (91) fixed on the frame plate inside the machine body (1), a cylinder (92) fixed on the fixed seat (91), and a pushing member (93) fixed to the end of the piston rod of the cylinder (92). At one end of the pushing member (93) close to the motor housing (4), there is a pressing groove (931) cooperating with the T-shaped connecting lug (31).

5. The motor end cover press-fitting machine according to claim 3, characterized in that: There are four fixing rods (15) and they are distributed in a rectangular array.

6. The motor end cover press-fitting machine according to claim 1, characterized in that: Inside the machine body (1), there is a cable drag chain (16).

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