Rapid centering expansion device and operation method thereof

Abstract

The invention discloses a rapid centering expansion device which comprises a mounting bottom plate used for mounting and fixing the position of the whole device, a driving unit fixedly connected to the top of the mounting bottom plate and used for providing power for the whole expansion device, and a transmission assembly connected to the top of the mounting bottom plate through bolts and used for providing power for the whole expansion device. The transmission assembly is arranged on the base, is in matched connection with the driving unit and is used for transmitting power generated by the driving unit to a subsequent operation part, and the multiple positioning and clamping assemblies are connected to the top of the transmission assembly through bolts and are used for clamping and fixing permanent magnets needing to be installed. The permanent magnet pressing device is reasonable and compact in structural layout, a plurality of simple and easy-to-operate mechanisms are utilized, a plurality of permanent magnets can be quickly and neatly pressed into the inner ring of the motor shell, the plurality of permanent magnets can be uniformly distributed in the inner ring of the motor shell, and the efficiency of the whole mounting process is also improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor assembly application, and in particular to a rapid centering and tightening device and an operating method thereof. Background Art

[0002] During the production process of the automotive brushless motor rotor, glue is evenly coated on the inner ring of the shell. It is necessary to first evenly bond the unmagnetized permanent magnets to the inner ring of the rotor shell along the circumferential direction with glue, and then magnetize the entire rotor. During this process, it is usually necessary to ensure that the permanent magnets are evenly distributed, and the gap between the permanent magnets and the inner ring of the shell must also be uniform and consistent, otherwise the brushless motor rotor will cause abnormal jitter during operation due to uneven mass distribution. Therefore, the present invention proposes a rapid centering and tightening device and an operating method thereof. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a rapid centering and tightening device and an operating method thereof, which effectively improves the working efficiency and achieves the expected purpose through a simple mechanical structure.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: on the one hand, a rapid centering and tightening device is provided, including a mounting base plate, which is used to install and fix the position of the entire device; the driving unit is fixedly connected to the top of the mounting base plate, and is used to provide power for the entire tightening device; the transmission assembly is bolted to the top of the mounting base plate, and is matched with the driving unit, and is used to transmit the power generated by the driving unit to subsequent operating components; multiple positioning and clamping assemblies are bolted to the top of the transmission assembly, and are used to clamp and fix the permanent magnets to be installed; the positioning plate is bolted to the top of the transmission assembly, and is used to position the motor housing to be installed, and is conveniently and quickly sleeved on the outer walls of multiple permanent magnets.

[0005] The present invention is further configured as follows: the driving unit includes a centering shaft connected to the mounting base plate through a flange bolt, the outer wall of the centering shaft is interference-connected with a deep groove ball bearing, the outer wall of the deep groove ball bearing is interference-connected with a rotating block, the top of the rotating block is bolted with a cam, the side wall of the rotating block is bolted with a rocker rod, the end face of the rocker rod is rotatably connected with a rotating pin, the top of the mounting base plate is bolted with a driving cylinder at a position away from the centering shaft, and the driving end face of the driving cylinder is matched with the bearing interference-connected with the outer wall of the rotating pin through a bolted pull rod.

[0006] Through the above technical solution, the driving cylinder is started, and its driving shaft drives the pull rod on the end face to move to the right, so that the matching rotating pin drives the rotating block connected to the rocker arm to rotate on the deep groove ball bearing, and realizes counterclockwise circular rotation with the centering axis as the center, thereby driving the cam on the rotating block to rotate, so that it squeezes multiple matching sliders in all directions, so that the permanent magnet is pressed against the inner ring of the motor housing along the positioning block bolted to the top of the slider.

[0007] The present invention is further configured as follows: the transmission assembly includes a guide base bolted to the top of the mounting base plate, a plurality of sliders are evenly slidably connected inside the guide base, and the plurality of sliders are evenly distributed circumferentially, a cover plate is bolted to the top of the guide base, the tops of the plurality of sliders penetrate the cover plate, and relative movable holes are provided thereto, the outer wall of the cover plate is evenly threaded with a plurality of spring plugs, and the middle positions of the outer walls of the plurality of sliders are all movably connected with reset springs.

[0008] Through the above technical solution, the swing rod can be easily moved at the bottom of the guide base, and the slider can slide stably inside the guide base, so that the internal return spring can be compressed and pressed against the spring plug.

[0009] The present invention is further configured as follows: a positioning pin is arranged at the top of the guide base near the outer wall, and the positioning pin is inserted into a positioning hole arranged on the cover plate near the outer wall for positioning.

[0010] The above technical solution makes it easy to use the positioning pins to position and fix the cover plate, thereby preventing the slider from flipping during movement.

[0011] The present invention is further configured such that: the plurality of spring plugs all penetrate the outer wall of the cover plate, and are respectively arranged to be tightly pressed against the plurality of return springs.

[0012] The above technical solution can prevent the return spring from popping out during the movement of the slider.

[0013] The present invention is further configured as follows: the positioning clamping assembly includes a positioning block, and clamping jaws are symmetrically arranged at the middle slot positions on both sides of the positioning block, and the two clamping jaws are rotatably connected to the two sides of the positioning block through the clamping turn pins arranged inside, and the opposite surfaces of the two clamping jaws are tightly arranged near the rear position.

[0014] Through the above technical solution, the clamping spring at the rear of the positioning block is used to enable the clamping claws that are tightly arranged to clamp and fix the permanent magnet.

[0015] The present invention is further configured as follows: the clamping spring is installed in a circular hole opened at the rear part of the positioning block near the bottom.

[0016] The above technical solution facilitates the installation and fixation of the clamping spring, so that the pressing force of the two ends on the clamping claws is the same, thereby achieving the clamping and fixation of the permanent magnet.

[0017] The present invention is further configured such that a guide pin is interference-connected at the top of the positioning plate near the outer wall.

[0018] Through the above technical solution, the bearing chamber and the positioning hole on the housing can correspond to the center hole and the guide pin of the positioning plate respectively, so as to facilitate the positioning of the housing.

[0019] On the other hand, a method for operating a rapid centering and tightening device is provided, comprising the following steps: S1. First, multiple permanent magnets to be installed are placed into the external positioning grooves of multiple corresponding positioning blocks, and the clamping claws set tightly against the positioning blocks are used to clamp and fix the permanent magnets. At this time, the diameter of the circumscribed circle of the multiple permanent magnets is smaller than the inner circle diameter of the motor housing; S2, then the motor housing is aligned with the center of the positioning plate and the guide pin through the bearing chamber and the positioning hole inside the motor housing, so as to position the motor housing, and press it to be sleeved on the outside of the plurality of permanent magnets; S3, then start the driving cylinder, and its driving shaft drives the pull rod on the end face to move to the right, so that the rotating pin connected with the matching connection drives the rotating block connected with the swing rod to rotate on the deep groove ball bearing, and realizes counterclockwise circular rotation with the centering axis as the center, thereby driving the cam on the rotating block to rotate, so that it squeezes the multiple matching sliders in all directions, so that the permanent magnet is pressed toward the inner ring of the motor housing along with the positioning block bolted to the top of the slider; S4. After holding for a period of time, the internal glue solidifies, and the cylinder driving rod drives the pull rod to reset, and at the same time drives the rocker rod to reset clockwise. At this time, after the cam unloads the force, multiple sliders use the internal compression to press against the reset spring on the spring plug, so that the slider drives the top positioning block to reset quickly, and then the motor housing with the permanent magnet installed can be removed, which is convenient for the processing of the next product.

[0020] The beneficial effects of the present invention are as follows: The rapid centering and tightening device and its operating method proposed in the present invention have a reasonable and compact structural layout, and utilize a plurality of simple and easy-to-operate mechanisms to quickly and neatly press a plurality of permanent magnets into the inner ring of the motor housing, which not only enables the plurality of permanent magnets to be evenly distributed in the inner ring of the motor housing, but also improves the efficiency of the entire installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an installation structure diagram of a quick centering and tightening device and an operation method thereof of the present invention; Figure 2 A top view of a quick centering and tightening device and an operating method thereof according to the present invention; Figure 3 An exploded diagram of a rapid centering and tightening device and an operating method thereof according to the present invention; Figure 4 The invention discloses an exploded view of a positioning clamping assembly in a rapid centering and tightening device and an operating method thereof.

[0022] In the figure: 100, installing the base plate; 200, driving unit; 201, centering shaft; 202, deep groove ball bearing; 203, rotating block; 204, cam; 205, rocker rod; 206, rotating pin; 207, driving cylinder; 208, pull rod; 300, transmission assembly; 301, guide base; 301a, positioning pin; 302, slider; 303, cover plate; 304, spring plug; 305, return spring; 400, positioning and clamping assembly; 401, positioning block; 402, clamping rotating pin; 403, clamping claw; 404, clamping spring; 500, positioning plate; 501, guide pin. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] like Figure 1-Figure 3As shown, a quick centering and tightening device includes a mounting base plate 100 for mounting and fixing the position of the entire device, a driving unit 200 is fixedly connected to the top of the mounting base plate 100, and is used to provide power for the entire tightening device, the driving unit 200 includes a centering shaft 201 connected to the mounting base plate 100 through a flange bolt, the outer wall of the centering shaft 201 is interference-connected with a deep groove ball bearing 202, the outer wall of the deep groove ball bearing 202 is interference-connected with a rotating block 203, the top of the rotating block 203 is bolted with a cam 204, the side wall of the rotating block 203 is bolted with a swing rod 205, the end surface of the swing rod 205 is rotatably connected with a rotating pin 206, and the top of the mounting base plate 100 is away from the centering shaft 201. A driving cylinder 207 is bolted to the drive end face of the driving cylinder 207, and the driving end face of the driving cylinder 207 is matched with the bearing that is interference-connected with the outer wall of the rotating pin 206 through the pull rod 208 connected by the bolts. When the driving cylinder 207 is started, its driving shaft drives the pull rod 208 on the end face to move to the right, so that the rotating pin 206 connected in a matching manner drives the rotating block 203 connected to the rocker arm 205 to rotate on the deep groove ball bearing 202, and realizes counterclockwise circular rotation with the centering shaft 201 as the center, thereby driving the cam 204 on the rotating block 203 to rotate, so that it squeezes the multiple matched sliders 302 in all directions, so that the permanent magnet is pressed toward the inner ring of the motor housing along the positioning block 401 bolted to the top of the slider 302.

[0025] like Figure 3As shown, the transmission assembly 300 is bolted to the top of the mounting base 100 and is matched with the driving unit 200 to transmit the power generated by the driving unit 200 to subsequent operating components. The transmission assembly 300 includes a guide base 301 bolted to the top of the mounting base 100. A positioning pin 301a is provided at the top of the guide base 301 near the outer wall, and the positioning pin 301a and the positioning hole provided near the outer wall of the cover plate 303 are inserted and positioned, so that the positioning pin 301a is used to position and fix the cover plate 303, thereby preventing the slider 302 from flipping over during the movement. The interior of the guide base 301 is evenly slidably connected with a plurality of sliders 302, and the plurality of sliders 302 are evenly distributed circumferentially. The top of the base 301 is bolted to a cover plate 303, the tops of the multiple sliders 302 pass through the cover plate 303 and have corresponding movable holes therewith, the outer wall of the cover plate 303 is evenly threaded with multiple spring plugs 304, the multiple spring plugs 304 all pass through the outer wall of the cover plate 303, and are respectively arranged to correspond and press against multiple return springs 305, which can prevent the return spring 305 from popping out during the movement of the slider 302, and the middle part of the outer wall of the multiple sliders 302 is movably connected with the return spring 305, which is convenient for the rocker arm 205 to move at the bottom of the guide base 301, and enables the slider 302 to slide stably inside the guide base 301, so that the internal return spring 305 can be compressed and pressed against the spring plug 304.

[0026] like Figure 3 and Figure 4 As shown, multiple positioning clamping components 400 are bolted to the top of the transmission component 300, and are used to clamp and fix the permanent magnets to be installed. The positioning clamping components 400 include a positioning block 401, and the middle slots on both sides of the positioning block 401 are symmetrically provided with clamping claws 403. The two clamping claws 403 are rotatably connected to the two sides of the positioning block 401 through the clamping turn pins 402 provided inside. The opposite surfaces of the two clamping claws 403 are tightly provided with clamping springs 404 near the rear position. The clamping springs 404 at the rear of the positioning block 401 are used to clamp and fix the permanent magnets. The clamping springs 404 04 is installed in the circular hole opened at the rear part of the positioning block 401 near the bottom, which is convenient for installing and fixing the clamping spring 404, so that the clamping force of the two ends on the clamping claw 403 is the same, thereby achieving the clamping and fixing of the permanent magnet. The positioning plate 500 is bolted to the top of the transmission assembly 300, and is used to locate the position of the motor housing to be installed, and is convenient and quick to be sleeved on the outer walls of multiple permanent magnets. The top of the positioning plate 500 is connected with a guide pin 501 at the outer wall position by interference, so that the bearing chamber and the positioning hole on the housing correspond to the center hole of the positioning plate 500 and the guide pin 501 respectively, so as to facilitate the positioning of the housing.

[0027] like Figure 1-Figure 4 As shown, a method for operating a rapid centering and tightening device comprises the following steps: S1. First, multiple permanent magnets to be installed are placed into the external positioning grooves of multiple corresponding positioning blocks 401. The clamping spring 404 at the rear of the positioning block 401 is used to clamp the permanent magnets with the clamping claws 403. At this time, the diameter of the circumscribed circle of the multiple permanent magnets is smaller than the inner circle diameter of the motor housing. S2, then the motor housing is aligned with the center of the positioning plate 500 and the guide pin 501 through the bearing chamber and the positioning hole inside the motor housing, so as to position the motor housing, and press it to be sleeved on the outside of the plurality of permanent magnets; S3, then start the driving cylinder 207, and its driving shaft drives the end surface pull rod 208 to move to the right, so that the matching rotating pin 206 drives the rotating block 203 connected to the swing rod 205 to rotate on the deep groove ball bearing 202, and realizes counterclockwise circular rotation with the centering shaft 201 as the center, thereby driving the cam 204 on the rotating block 203 to rotate, so that it squeezes the multiple matching sliders 302 in all directions, so that the permanent magnet is pressed toward the inner ring of the motor housing along with the positioning block 401 bolted to the top of the slider 302; S4. After holding for a period of time, the internal glue solidifies, and the driving rod of the driving cylinder 207 drives the pull rod 208 to perform a reset operation, and at the same time drives the rocker arm 205 to reset clockwise. At this time, after the cam 204 unloads the force, the multiple sliders 302 use the internal compression to press the reset spring 305 on the spring plug 304, so that the slider 302 drives the top positioning block 401 to reset quickly, and then the motor housing with the permanent magnet installed can be removed, which is convenient for processing the next product.

[0028] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rapid centering and tightening device, characterized in that: include An installation base plate (100) is used to install and fix the position of the entire device; A driving unit (200), the driving unit (200) being fixedly connected to the top of the mounting base plate (100) and used for providing power to the entire expansion device; A transmission assembly (300), the transmission assembly (300) being bolted to the top of the mounting base plate (100) and being cooperatively connected to the drive unit (200) and used for transmitting power generated by the drive unit (200) to subsequent operating components; A plurality of positioning clamping assemblies (400), each of the plurality of positioning clamping assemblies (400) being bolted to the top of the transmission assembly (300) and used for clamping and fixing the permanent magnets to be installed; A positioning plate (500) is bolted to the top of the transmission assembly (300) and is used to position a motor housing to be installed, so as to be conveniently and quickly sleeved on the outer walls of the plurality of permanent magnets.

2. A rapid centering and tightening device according to claim 1, characterized in that: The driving unit (200) comprises a centering shaft (201) connected to a mounting base plate (100) via flange bolts; a deep groove ball bearing (202) is interference-connected to an outer wall of the centering shaft (201); a rotating block (203) is interference-connected to an outer wall of the deep groove ball bearing (202); a cam (204) is bolted to the top of the rotating block (203); a swing rod (205) is bolted to the side wall of the rotating block (203); an end face of the swing rod (205) is rotationally connected to a rotating pin (206); a driving cylinder (207) is bolted to a position of the top of the mounting base plate (100) away from the centering shaft (201); and a driving end face of the driving cylinder (207) is matched with a bearing interference-connected to the outer wall of the rotating pin (206) via a bolted pull rod (208).

3. A rapid centering and tightening device according to claim 1, characterized in that: The transmission assembly (300) comprises a guide base (301) bolted to the top of the mounting base (100); a plurality of sliders (302) are uniformly slidably connected inside the guide base (301); and the plurality of sliders (302) are uniformly distributed in a circumference; a cover plate (303) is bolted to the top of the guide base (301); the tops of the plurality of sliders (302) penetrate the cover plate (303) and have movable holes relative thereto; a plurality of spring plugs (304) are uniformly threadedly connected to the outer wall of the cover plate (303); and a return spring (305) is movably connected to the middle of the outer wall of the plurality of sliders (302).

4. A rapid centering and tightening device according to claim 3, characterized in that: A positioning pin (301a) is provided at the top of the guide base (301) near the outer wall, and the positioning pin (301a) is inserted into and positioned with a positioning hole provided on the cover plate (303) near the outer wall.

5. A rapid centering and tightening device according to claim 3, characterized in that: The plurality of spring plugs (304) all penetrate the outer wall of the cover plate (303) and are respectively arranged to be tightly pressed against the plurality of return springs (305).

6. A rapid centering and tightening device according to claim 1, characterized in that: The positioning clamping assembly (400) comprises a positioning block (401), and clamping jaws (403) are symmetrically arranged at the middle slot positions on both sides of the positioning block (401), and the two clamping jaws (403) are rotatably connected to the two sides of the positioning block (401) through internally arranged clamping rotating pins (402), and clamping springs (404) are arranged to press against the opposite surfaces of the two clamping jaws (403) near the rear position.

7. A rapid centering and tightening device according to claim 6, characterized in that: The clamping spring (404) is installed in a circular hole opened at the rear of the positioning block (401) near the bottom.

8. A rapid centering and tightening device according to claim 1, characterized in that: A guide pin (501) is interference-connected at the top of the positioning plate (500) near the outer wall.

9. An operating method of a rapid centering and tightening device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. First, a plurality of permanent magnets to be installed are placed into the outer positioning grooves of a plurality of corresponding positioning blocks (401), and a clamping spring (404) at the rear of the positioning block (401) is used to clamp the permanent magnets with a clamping claw (403) which is tightly arranged. At this time, the diameter of the circumscribed circle of the plurality of permanent magnets is smaller than the diameter of the inner circle of the motor housing; S2, then aligning the motor housing with the center of the positioning plate (500) and the guide pin (501) through the bearing chamber and the positioning hole inside the motor housing, so as to position the motor housing, and applying pressure to the motor housing so that it is sleeved on the outside of the plurality of permanent magnets; S3, then start the driving cylinder (207), and its driving shaft drives the end surface pull rod (208) to move rightward, so that the matching rotating pin (206) drives the rotating block (203) connected to the swing rod (205) to rotate on the deep groove ball bearing (202), and realizes counterclockwise circular rotation with the centering shaft (201) as the center, thereby driving the cam (204) on the rotating block (203) to rotate, so that it squeezes the multiple matching sliders (302) in all directions, so that the permanent magnet is pressed toward the inner ring of the motor housing along with the positioning block (401) bolted to the top of the slider (302); S4. After a period of time, the glue inside solidifies, and the driving rod of the driving cylinder (207) drives the pull rod (208) to perform a reset operation, and at the same time drives the swing rod (205) to reset clockwise. At this time, after the cam (204) releases the force, the multiple sliders (302) use the internal compression to press against the reset spring (305) on the spring plug (304), so that the sliders (302) drive the top positioning block (401) to quickly reset, and then the motor housing with the permanent magnet installed can be removed, which is convenient for processing the next product.

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