Automatic assembling device for motor stator of electric tool

Abstract

The utility model discloses an automatic assembling device for a motor stator of an electric tool, and the device comprises an operation platform which is internally provided with a limiting part used for fixing a motor housing. The top of the motor housing is provided with a stator cylinder with a hole site. An electric bolt machine is mounted at the top of the operation table through two driving cylinders; a conveying piece used for providing bolts is arranged on one side of the inner wall of the operation table. The conveying part comprises an electric push rod embedded in one side of the operation table, a storage frame is installed at one end of the electric push rod, a storage groove used for placing bolts is formed in the bottom of the storage frame, and an elastic part used for discharging the bolts is installed at the bottom of the storage frame. The assembling device provided by the utility model is simple in structure, convenient to operate, high in efficiency and capable of improving the assembling precision of the stator, and the stator cylinder is automatically mounted on the motor shell without manually fixing the bolts.

Description

Technical Field

[0001] The utility model relates to the technical field of power tool equipment, in particular to an automatic assembly device for a stator of a power tool motor. Background Technique

[0002] Power tools refer to tools that are held and operated by hand, with a small-power motor or electromagnet as the power source, and drive the working head of the operation through a transmission mechanism. The drive motor serves as the power source in the power tool. The motor consists of components such as a housing, a stator, and a rotor. Among them, the installation and fixation of the stator in the motor housing is a key process in motor assembly, which determines the gap between the stator and the rotor. During the manual assembly process, since the motor housing is made of plastic material, it has a large elasticity and deformation, and the stator is heavy, resulting in inaccurate assembly positions and inconvenient installation of fixing screws. In the prior art, there is a lack of limit fixation for the motor housing. When installing the stator column and the motor housing, it is relatively inconvenient to use manual bolts, and there is no automatic bolt conveying for installation.

[0003] For example, the motor stator assembly table disclosed in the authorized patent document with the application number CN201922104382.3 includes a device main body and a moving mechanism. The upper surface of the device main body is provided with a table board. One side of the upper surface of the table board is provided with a driving cylinder. One side of the driving cylinder is provided with a stator pressing sleeve. One side of the stator pressing sleeve is provided with a housing support block, and the bottom end of the stator pressing sleeve is provided with a stator positioning plate. The front end and the rear end of the stator positioning plate are both provided with stator support raceways. One side of the housing support block is provided with a housing positioning plate, and at the same time, one side of the housing positioning plate is also provided with a housing support block; through the designed movable top plate, housing positioning plate, housing support block, stator pressing sleeve and driving cylinder installed on the upper surface of the device main body, it is convenient to assemble the motor electronics. The original assembly method was a pure manual one, and now an assembly method combining manual and mechanical methods is adopted, which can reduce the labor intensity of the operator and avoid unnecessary accidents.

[0004] The above patent has the inconvenience of requiring manual bolts when installing the stator column and the motor housing, and does not have automatic bolt conveying for installation. Therefore, we need to provide an automatic assembly device for a stator of a power tool motor. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automatic assembly device for a stator of a power tool motor to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An automatic assembly device for an electric tool motor stator, comprising: an operating table, inside which a limiting member for fixing the motor housing is provided; a stator cylinder with holes is installed on the top of the motor housing; an electric bolt machine is installed on the top of the operating table through two driving cylinders; a conveying member for providing bolts is arranged on one side of the inner wall of the operating table; the conveying member includes an electric push rod embedded on one side of the operating table, one end of the electric push rod is installed with a storage frame, a storage groove for placing bolts is opened at the bottom of the storage frame, and an elastic member for discharging bolts is installed at the bottom of the storage frame.

[0008] Preferably, the elastic member includes a feeding groove arranged on one side of the storage groove, two frames are installed inside the feeding groove, a contact block for limiting the bolt is slidably installed inside each of the two frames, and two first springs are clamped between the contact block and the inner wall of the frame.

[0009] Preferably, two sliding rods are fixedly installed on one side of the contact block, one end of each of the two sliding rods penetrates through one side of the frame and extends, both contact blocks are arranged in an inclined plane, and a limiting seat is installed on the top of the storage frame.

[0010] Preferably, a pushing block is slidably installed inside the feeding groove, two support rods are fixedly installed between two plates at the bottom of the storage frame, the surfaces of the two support rods are slidably installed inside the pushing block, and two second springs are movably sleeved on the surfaces of the two support rods, and one end of each of the two second springs is clamped on one side of the pushing block.

[0011] Preferably, a limiting block is fixedly installed on one side of the storage frame, a fixing plate is fixedly installed inside the operating table, and a limiting groove for the limiting block to slide is opened on the surface of the fixing plate.

[0012] Preferably, the limiting member includes a driving motor embedded at the bottom of the inner wall of the operating table, a rotating disk is fixedly installed at the output end of the driving motor, and clamping cylinders for fixing the motor housing are installed at the four corners on the top of the rotating disk.

[0013] Preferably, a plurality of pulleys are installed at the bottom of the rotating disk, and an annular groove for the plurality of pulleys to slide is opened at the bottom of the inner wall of the operating table.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The assembly device of the present utility model has a simple structure. The stator cylinder is automatically installed on the motor housing, without manual fixing of bolts, which is convenient to operate, has high efficiency, and can also improve the assembly accuracy of the stator. Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is an exploded three-dimensional view of the limiting member of the present utility model;

[0018] Figure 3 is a three-dimensional sectional view of the storage box of the present utility model;

[0019] Figure 4 is a three-dimensional view of the pushing block of the present utility model;

[0020] Figure 5 is a three-dimensional view of the elastic member of the present utility model.

[0021] In the figure: 1, operating table; 2, limiting member; 21, driving motor; 22, rotating disk; 23, clamping cylinder; 3, motor housing; 4, stator cylinder; 5, driving cylinder; 6, electric bolt machine; 7, conveying member; 71, electric push rod; 72, storage box; 73, storage groove; 70, elastic member; 701, feeding groove; 702, frame body; 703, abutting block; 704, first spring; 8, sliding rod; 9, limiting seat; 10, pushing block; 11, support rod; 12, second spring; 13, limiting block; 14, fixing plate; 15, limiting groove; 16, pulley; 17, annular groove. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5, an automatic assembly device for an electric tool motor stator, including an operating table 1 and a limiting member 2 arranged inside the operating table 1 for fixing the motor housing 3; a stator cylinder 4 with holes is installed on the top of the motor housing 3; an electric bolt machine 6 is installed on the top of the operating table 1 through two driving cylinders 5; a conveying member 7 for providing bolts is arranged on one side of the inner wall of the operating table 1. The conveying member 7 includes an electric push rod 71 embedded in one side of the operating table 1. One end of the electric push rod 71 is installed with a storage frame 72. The bottom of the storage frame 72 is provided with a storage groove 73 for placing bolts. The bottom of the storage frame 72 is installed with an elastic member 70 for discharging bolts. The elastic member 70 includes a placement groove 701 arranged on one side of the storage groove 73. Two frames 702 are installed inside the placement groove 701. Two contact blocks 703 for limiting bolts are slidably installed inside the two frames 702. Two first springs 704 are clamped between the contact blocks 703 and the inner walls of the frames 702.

[0024] Working principle: Place the motor housing 3 to be assembled on the rotating disk 22 and start the four clamping cylinders 23 to fix the motor housing 3. Among them, the four clamping cylinders 23 are synchronous driving cylinders 5. Place the stator cylinder 4 at the groove on the top of the motor housing 3. The four hole positions on the surface of the stator cylinder 4 will correspond to the installation holes inside the motor housing 3. Start the electric push rod 71 to push the storage frame 72 to move. A number of bolts are placed in the placement groove 701 at the bottom of the storage frame 72. The number of bolts will be pushed by the push block 10 and will be close to each other. The second spring 12 will push the push block 10 to closely fit the bolts in the storage frame 72. Align the bolts in the placement groove 701 with the hole positions on the surface of the stator cylinder 4 on the same vertical line. The two driving cylinders 5 are synchronous driving cylinders 5. Start the two driving cylinders 5 to lower the electric bolt machine 6. The rotating head at the bottom of the electric bolt machine 6 enters the storage frame 72 and pushes out the bolts in the placement groove 701 from the storage frame 72. The bolts fall at the hole positions on the surface of the stator cylinder 4. With the start of the electric bolt machine 6, the fixing of the bolts is completed. With the rotation of the driving motor 21, all four hole positions are installed. Among them, when the electric bolt machine 6 pushes out the bolts in the placement groove 701, it will squeeze the two contact blocks 703. The two contact blocks 703 move respectively inside the two frames 702 and squeeze the first springs 704. Subsequently, under the action of the second spring 12, the push block 10 pushes the rod bolts forward.

[0025] The assembly device of the present utility model has a simple structure. The stator cylinder 4 is installed on the motor housing 4 through automation, without the need for manual fixing of bolts, which is convenient to operate, has high efficiency, and can also improve the assembly accuracy of the stator.

[0026] Specifically, two slide bars 8 are fixedly mounted on one side of the resistance block 703, one end of each of the two slide bars 8 passes through one side of the frame 702 and extends, and both resistance blocks 703 are configured as inclined surfaces, and a limit seat 9 is installed on the top of the storage frame 72. With the above design, the movement of the resistance block 703 will drive the slide bar 8 to move, thereby enhancing the stability of the resistance block 703 when sliding.

[0027] Specifically, a push block 10 is slidably installed inside the delivery slot 701, and two support rods 11 are fixedly installed between the two plates at the bottom of the storage frame 72. The surfaces of the two support rods 11 are slidably installed inside the push block 10. The surfaces of the two support rods 11 are movably sleeved with second springs 12, and one end of the two second springs 12 is clamped on one side of the push block 10. According to the above design, a number of bolts are placed in the delivery slot 701 at the bottom of the storage frame 72. The bolts will be pushed by the push block 10, and the bolts will be close together. The second spring 12 will push the push block 10 to fit the bolts in the storage frame 72 tightly. When the electric bolt machine 6 pushes the bolts in the delivery slot 701 out, it will squeeze the two resistance blocks 703. The two resistance blocks 703 move in the two frames 702 respectively and squeeze the first spring 704. Then, under the action of the second spring 12, the push block 10 pushes the bolts forward.

[0028] Specifically, a limit block 13 is fixedly installed on one side of the storage frame 72, and a fixing plate 14 is fixedly installed inside the operating table 1. The surface of the fixing plate 14 is provided with a limit groove 15 for the limit block 13 to slide. With the above design, the movement of the storage frame 72 will drive the limit block 13 to slide in the limit groove 15, thereby enhancing the stability of the movement of the storage frame 72.

[0029] Specifically, the limiter 2 includes a drive motor 21 embedded in the bottom of the inner wall of the operating table 1, a rotating disk 22 is fixedly installed at the output end of the drive motor 21, and clamping cylinders 23 for fixing the motor housing 3 are installed at the four corners of the top of the rotating disk 22. In the above design, the drive motor 21 is a stepper motor, and the motor housing 3 on the top of the rotating disk 22 is square, the hole position on the surface of the motor housing 3 is on the same vertical line as the electric bolt machine 6, and the four clamping cylinders 23 are synchronous drive cylinders 5, which fix the motor housing 3 in the correct position.

[0030] Specifically, a plurality of pulleys 16 are installed at the bottom of the rotating disk 22, and an annular groove 17 is provided at the bottom of the inner wall of the operating table 1 for the plurality of pulleys 16 to slide. The above design can enhance the stability of the rotation of the rotating disk 22, and a plurality of pulleys 16 are installed at the bottom of the rotating disk 22, and an annular groove 17 is provided for the plurality of pulleys 16 to roll.

[0031] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic assembly device for a motor stator of an electric tool, characterized in that: It includes an operating table, wherein a limiting piece for fixing a motor housing is arranged inside the operating table; a stator column with holes is installed on the top of the motor housing; an electric bolt machine is installed on the top of the operating table through two driving cylinders; a conveying piece for providing bolts is arranged on one side of the inner wall of the operating table; the conveying piece includes an electric push rod embedded in one side of the operating table, a storage frame is installed at one end of the electric push rod, a storage groove for placing bolts is opened at the bottom of the storage frame, and an elastic piece for discharging bolts is installed at the bottom of the storage frame.

2. The automatic assembly device for electric tool motor stator according to claim 1, characterized in that: The elastic member comprises a delivery slot arranged at one side of the storage slot, two frames are installed inside the delivery slot, and a resistance block for limiting bolts is slidably installed inside the two frames. Two first springs are clamped between the resistance block and the inner wall of the frame.

3. The automatic assembly device for electric tool motor stator according to claim 2, characterized in that: Two slide bars are fixedly mounted on one side of the abutment block, one end of each of the slide bars passes through one side of the frame and extends, the two abutment blocks are both arranged in an inclined plane, and a limit seat is mounted on the top of the storage frame.

4. The automatic assembly device for electric tool motor stator according to claim 2, characterized in that: A pushing block is slidably installed inside the delivery slot, and two support rods are fixedly installed between the two plates at the bottom of the storage frame. The surfaces of the two support rods are slidably installed inside the pushing block, and the surfaces of the two support rods are movably sleeved with second springs, and one end of the two second springs is clamped on one side of the pushing block.

5. The automatic assembly device for electric tool motor stator according to claim 4, characterized in that: A limiting block is fixedly installed on one side of the storage frame, a fixing plate is fixedly installed inside the operating table, and a limiting groove for sliding of the limiting block is opened on the surface of the fixing plate.

6. The automatic assembly device for electric tool motor stator according to claim 1, characterized in that: The limiting member includes a driving motor embedded in the bottom of the inner wall of the operating table, a rotating disk is fixedly installed at the output end of the driving motor, and clamping cylinders for fixing the motor housing are installed at the four corners of the top of the rotating disk.

7. The automatic assembly device for electric tool motor stator according to claim 6, characterized in that: A plurality of pulleys are installed at the bottom of the rotating disk, and an annular groove for sliding of the plurality of pulleys is provided at the bottom of the inner wall of the operating table.

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