A motor housing grinding device

Abstract

The present application provides a grinding device for a motor housing, belonging to the technical field of motor production. It includes a frame, and grinding mechanisms are arranged on both sides of the frame. A clamping body for clamping from the inside of the material and a displacement component for driving the clamping body to move horizontally are arranged on the frame. A positioning mechanism for correcting the skew of the material and a driving component for driving the clamping body to move are arranged on the displacement component; the positioning mechanism includes a hydraulic cylinder, the output end of the hydraulic cylinder is provided with a connecting frame, the bottom of the connecting frame is provided with two side plates symmetrically distributed on both sides of the clamping body, and the bottom of the side plate is provided with a guide plate inclined outward. By adopting the clamping method from the inside of the material and cooperating with the positioning mechanism and the driving component, it can replace manual flipping of the material, eliminating the need for repeated picking and placing of the material and repositioning, reducing the manual operation links, and being beneficial to improving production efficiency and grinding effect.

Description

Technical Field

[0001] The present application relates to the technical field of electric motor production, and in particular to a motor housing grinding device. Background Art

[0002] The motor housing is an important part of the motor, with functions such as support and protection, fixing components, heat dissipation and sound insulation. A high-quality motor housing can effectively shield external electromagnetic interference and reduce the leakage of internal electromagnetic energy, thereby improving the overall efficiency and stability of the motor.

[0003] Casting is one of the main methods of producing motor housings. For mass-produced motor housings, the casting process can achieve large-scale, high-efficiency production through the reuse of molds, thereby reducing production costs. After the motor housing is cast, its surface roughness is large and burrs are easily left. In order to remove surface defects and improve its surface quality, the motor housing needs to be polished.

[0004] Referring to the Chinese patent document with announcement number CN215092741U and name of double-sided grinding belt machine, the device consists of a frame, two left and right grinding mechanisms and a feeding mechanism. The gas spring of the propulsion cylinder is used to automatically tighten the sanding belt, making the grinding operation more flexible and convenient. It can grind both sides of the product at the same time, which is beneficial to improving the processing efficiency of the product.

[0005] With regard to the above technical solution, when grinding the outer side of the motor housing, due to the limitation of the device structure, after completing the grinding of the two sides of the motor housing, it is necessary to manually remove the motor housing from the feeding mechanism, and after the motor housing is rotated and turned over, it is re-fixed on the feeding mechanism for grinding. Due to the numerous operating steps, it is easy to affect the processing efficiency, and the repositioning may affect the positioning accuracy, thereby affecting the grinding effect. Summary of the invention

[0006] In view of this, the present application provides a motor housing grinding device, which is mainly used to solve the problem that the motor housing needs to be manually turned over and repositioned during grinding.

[0007] To solve the above technical problems, the present application provides a grinding device for a motor housing, which includes a frame. Grinding mechanisms are provided on both sides of the frame. A displacement assembly is provided on the frame. The displacement assembly includes a sliding table. A clamping body and a driving member are provided on the sliding table. The clamping body includes a mounting member. A positioning mechanism for correcting the skew of the material and a driving assembly for driving the clamping body to move are provided on the sliding table. The clamping body can clamp from the inside of the material; the positioning mechanism includes a hydraulic cylinder. A connecting frame is provided at the output end of the hydraulic cylinder. Two side plates located outside the clamping body are provided at the bottom of the connecting frame, and the two side plates are symmetrically arranged based on the clamping body. A guiding plate inclined away from the clamping body from top to bottom is provided at the bottom of the side plate; the driving assembly includes a third cylinder. A bottom plate is provided at the output end of the third cylinder. A movable frame is rotatably provided on the bottom plate. A connecting rod for connecting the mounting member is provided at the bottom of the movable frame. A rotary cylinder for driving the movable frame to rotate is provided on the bottom plate.

[0008] By adopting the above technical solution, after grinding two surfaces of the motor housing, it is not necessary to manually turn the surface over and reposition it, and the other two surfaces of the motor housing can be ground, which is beneficial to improving the processing efficiency and ensuring the grinding effect.

[0009] Optionally, a cavity is provided on the side plate. A scraper is provided inside the cavity. A movable member is provided above the scraper. A first cylinder for driving the movable member to move longitudinally is provided on the side plate.

[0010] By adopting the above technical solution, after the motor housing is positioned, the downward-moving scraper can scrape off the larger burrs on the motor housing, avoiding adverse effects on subsequent grinding.

[0011] Optionally, a kit located outside the clamping body and the driving assembly is provided at the bottom of the connecting frame. A bidirectional lead screw is provided on the kit. The side plate is slidably provided on the kit and is threadedly connected to the bidirectional lead screw.

[0012] By adopting the above technical solution, the distance between the side plates can be adjusted according to the size of the motor housing, which can reduce the limitations of the device use and make it more flexible and convenient to use.

[0013] Optionally, a mounting groove is provided at the bottom of the side plate. A first spring and a support bar are provided inside the mounting groove. The support bar is movably connected to the mounting groove through the first spring. The side of the support bar close to the scraper is a V-shaped surface.

[0014] By adopting the above technical solution, it can not only prevent the material from jamming during the positioning of the motor housing, but also avoid the scraped burrs from getting stuck in the tool groove, which helps to improve the smooth operation of the device.

[0015] Optionally, the clamping body further includes a connecting groove circumferentially arranged inside the mounting member. An insertion block and a second spring are arranged inside the connecting groove. A support plate is arranged on the insertion block, and an inclined plate inclined towards the connecting rod side is arranged on the support plate. A lifting rod is sleeved inside the connecting rod, and a pressing block abutted against the inclined plate is arranged at the bottom of the lifting rod.

[0016] Optionally, an air bag body in contact with the inside of the motor housing is arranged on the support plate for tightly fixing the motor housing from the inside.

[0017] By adopting the above technical solution, when clamping the motor housing, it can not only be applicable to motor housings of different sizes, but also increase the contact area with the motor housing, maintain the clamping effect, and at the same time avoid damage to the motor housing caused by excessive clamping force.

[0018] Optionally, the displacement assembly includes a support frame. A cross plate is arranged at the top of the support frame. A screw rod, a motor and a sliding rod are arranged on the cross plate. The sliding table is in threaded connection with the screw rod, and the motor is used to drive the screw rod to rotate.

[0019] Optionally, a feeding conveyor belt and a discharging conveyor belt are respectively arranged on the left and right sides of the frame.

[0020] By adopting the above technical solution, in cooperation with the feeding conveyor belt and the discharging conveyor belt, the device can replace manual loading and unloading, improve the degree of automation, and is beneficial to improving production efficiency.

[0021] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0022] 1. By adopting the clamping method inside the motor housing and cooperating with the positioning mechanism and the driving component, it can replace manual flipping of the motor housing, eliminating the need for repeated picking and placing of the motor housing and repositioning, reducing the manual operation links, and being beneficial to improving production efficiency and grinding effect.

[0023] 2. Through the cooperation between the positioning mechanism and the cutting component, it can not only reduce the grinding defects caused by material position deviation and improve the grinding accuracy, but also timely scrape off the larger burrs on the surface of the motor housing before the material officially enters the grinding process, creating good conditions for the subsequent grinding work and being beneficial to the subsequent grinding of the motor housing.

[0024] 3. By setting the elastic support structure, it can not only prevent the motor housing from jamming during positioning, but also prevent the scraped burrs from getting stuck in the tool groove, which helps to improve the smooth operation of the device. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of a motor housing grinding device of the present application;

[0026] Figure 2 This is a schematic structural diagram of the positioning mechanism and the driving component in this application;

[0027] Figure 3 This is a schematic structural diagram of the driving component in this application;

[0028] Figure 4 This is a schematic structural diagram of the positioning mechanism in this application;

[0029] Figure 5 This is a schematic cross-sectional structural diagram of the clamping body in this application;

[0030] Figure 6 This is a schematic structural diagram of the side plate and the guide plate in this application;

[0031] Figure 7 This is this application Figure 6 An enlarged schematic diagram of the structure at position A.

[0032] Explanation of reference numerals: 1, frame; 2, grinding mechanism; 3, support frame; 31, cross plate; 32, screw rod; 33, motor; 34, slide bar; 35, slide table; 4, positioning mechanism; 41, hydraulic cylinder; 42, connecting frame; 420, kit; 421, bidirectional lead screw; 43, side plate; 44, guide plate; 440, installation groove; 441, support bar; 442, first spring; 45, first air cylinder; 46, moving part; 47, cavity; 48, scraper; 5, clamping body; 501, mounting part; 502, support plate; 503, air bag body; 504, lifting rod; 505, pressing block; 506, connecting groove; 507, inserting block; 508, second spring; 509, inclined plate; 510, second air cylinder; 6, driving component; 61, third air cylinder; 62, bottom plate; 63, rotary air cylinder; 64, moving frame; 65, connecting rod; 7, feeding conveyor belt; 8, discharging conveyor belt. Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below in conjunction with the Figures 1 - 7 of the embodiments of this application. Obviously, the described embodiments are some, rather than all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of this application fall within the scope of protection of this application.

[0034] Referring to Figure 1 and Figure 2 , this embodiment provides a motor housing grinding device, including a frame 1, a grinding mechanism 2, a positioning mechanism 4, a clamping body 5, a driving member, a displacement assembly, and a driving component 6.

[0035] The grinding mechanism 2 is a belt sander in the prior art, mainly composed of a grinding motor, a driving wheel, a tensioning wheel, a transmission wheel and a propulsion cylinder; the positioning mechanism 4 is used to correct the skewed material so that the side of the material is parallel to the abrasive belt on the grinding mechanism 2 before grinding; the driving member is used to drive the clamping body 5, and the clamping body 5 can clamp the material in an outward-expanding manner from inside the material; the displacement assembly is used to drive the positioning mechanism 4, the clamping body 5 and the driving assembly 6 to move left and right, so as to realize the transfer of the material; the driving assembly 6 is used to drive the clamping body 5 to move up and down and rotate along the axis direction.

[0036] Among them, referring to Figure 4 and Figure 6 , the positioning mechanism 4 includes a hydraulic cylinder 41, a connecting frame 42, side plates 43 and a guide plate 44. The connecting frame 42 is arranged at the output end of the hydraulic cylinder 41. There are two side plates 43, and the two side plates 43 are located on both sides of the clamping body 5. The side plates 43 are arranged at the bottom of the connecting frame 42. The guide plate 44 is inclinedly arranged at the bottom of the side plate 43, and the side view structures of the two guide plates 44 are in an "eight" shape.

[0037] Before the clamping body 5 fixes the material, the hydraulic cylinder 41 drives the side plates 43 and the guide plate 44 to move downward through the connecting frame 42. The guide plate 44 in an "eight" shape can twist the skewed material to make its side parallel to the side plate 43. Since the side plate 43 is parallel to the abrasive belt on the grinding mechanism 2, at this time, under the action of the positioning mechanism 4, the motor housing can be parallel to the abrasive belt on the grinding mechanism 2.

[0038] Among them, referring to Figure 3 and Figure 5 , the clamping body 5 includes a mounting member 501, a support plate 502, a lifting rod 504, a pressing block 505, a connecting groove 506, an inserting block 507, a second spring 508 and an inclined plate 509. The mounting member 501 is arranged at the bottom of the connecting rod 65. The connecting groove 506 is circumferentially arranged inside the mounting member 501. The connecting groove 506 is symmetrically distributed at the top and bottom of the mounting member 501, so that both ends of the support plate 502 can be connected to the mounting member 501, which helps to improve the stability of the support plate 502. The inserting block 507 and the second spring 508 are arranged inside the connecting groove 506. One end of the second spring 508 is fixedly connected to the mounting member 501, and the other end is fixedly connected to the inserting block 507. The support plate 502 is fixedly connected to the inserting block 507. The inclined plate 509 is arranged on one side of the support plate 502. The lifting rod 504 is movably sleeved inside the connecting rod 65. The pressing block 505 is arranged at the bottom of the lifting rod 504. The outer inclined surface of the pressing block 505 is adapted to the inclined plate 509, and the outer inclined surface of the pressing block 505 abuts against the inclined plate 509. The driving member is a second cylinder 510.

[0039] After the installation part 501 enters the interior of the material, the output end of the second cylinder 510 drives the lifting rod 504 to move downward. The lifting rod 504 squeezes the pressing block 505 to expand the pallet 502 circumferentially arranged on the installation part 501 outward. At this time, the second spring 508 is in a stretched state. After the multiple pallets 502 expand circumferentially, they contact the inner wall of the motor housing and clamp and fix the motor housing.

[0040] Among them, referring to Figure 3 , the driving assembly 6 includes a third cylinder 61, a bottom plate 62, a rotary cylinder 63, a movable frame 64 and a connecting rod 65. The bottom plate 62 is arranged at the output end of the third cylinder 61. The movable frame 64 is rotatably connected to the upper surface of the bottom plate 62. The second cylinder 510 is arranged inside the movable frame 64. The connecting rod 65 is arranged at the bottom of the movable frame 64 and is fixedly connected to the installation part 501. The connecting rod 65 penetrates through the bottom plate 62 and is rotatably connected to it. The rotary cylinder 63 for driving the movable frame 64 to rotate is fixedly connected to the bottom plate 62.

[0041] The output end of the third cylinder 61 drives the bottom plate 62 to move up and down along the axial direction. The bottom plate 62 drives the clamping body 5 to move up and down through the connecting rod 65. When the two surfaces of the motor housing are polished, the third cylinder 61 drives the bottom plate 62 to move the clamping body 5 and the motor housing upward so that the two are moved out from between the polishing mechanisms 2. Subsequently, the rotary cylinder 63 drives the movable frame 64 to rotate the connecting rod 65 by 90 degrees. The connecting rod 65 drives the clamping body 5 to rotate the motor housing by 90 degrees to realize the turning over of the motor housing. The turned-over motor housing does not need to be repositioned. Subsequently, under the action of the third cylinder 61, the motor housing moves down to the polishing position to continue the polishing operation.

[0042] Among them, referring to Figure 1 , the displacement assembly includes a support frame 3, a cross plate 31, a screw rod 32, a motor 33, a slide rod 34 and a slide table 35. The positioning mechanism 4 and the driving assembly 6 are both arranged on the slide table 35. The cross plate 31 is fixedly connected to the top of the support frame 3. The slide table 35 is threadedly connected to the screw rod 32. The motor 33 is used to drive the screw rod 32 to rotate. The slide table 35 is movably sleeved on the slide rod 34. The hydraulic cylinder 41 and the third cylinder 61 are both fixedly connected to the slide table 35. An opening for the rotary cylinder 63 and the movable frame 64 to pass through is arranged on one side of the slide table 35 close to the clamping body 5.

[0043] The motor 33 drives the screw rod 32 to rotate to move the slide table 35 along the cross plate 31, so that the positioning mechanism 4, the clamping body 5 and the driving assembly 6 move left and right along the cross plate 31 to realize the transfer of the motor housing.

[0044] In addition, referring to Figure 6 and Figure 7, a cavity 47 is provided on the side plate 43, a scraping blade 48 is arranged inside the cavity 47, the side surface of the scraping blade 48 is in the same plane as the side plate 43, a movable member 46 is arranged above the scraping blade 48, and a first cylinder 45 for driving the movable member 46 to move longitudinally is arranged on the side plate 43.

[0045] After the guide plate 44 corrects the posture of the motor housing, the first cylinder 45 drives the movable member 46 to move downward, and the movable member 46 drives the scraping blade 48 to move downward. At this time, as the side plate 43 moves downward, the scraping blade 48 can scrape off the larger burrs remaining on the surface of the motor housing, creating good conditions for subsequent grinding work.

[0046] Refer to Figure 4 , a kit 420 sleeving the outside of the clamping body 5 and the driving component 6 is arranged at the bottom of the connecting frame 42. A bidirectional lead screw 421 is arranged on the kit 420. The side plate 43 is slidably arranged on the kit 420 and is threadedly connected to the bidirectional lead screw 421.

[0047] Rotating the two bidirectional lead screws 421 simultaneously can make the two side plates 43 move in opposite or opposite directions at the same time, so that the distance between the two side plates 43 can be adjusted according to the size of the motor housing, reducing the limitations of the device use and making it more flexible and convenient to use.

[0048] Refer to Figure 6 and Figure 7 , an installation groove 440 is arranged at the bottom of the side plate 43. A first spring 442 and a support bar 441 are arranged inside the installation groove 440. The support bar 441 is movably connected to the installation groove 440 through the first spring 442. Both the top and bottom of the side of the support bar 441 close to the scraping blade 48 are inclined surfaces.

[0049] When the scraping blade 48 is inside the cavity 47, the inclined surface at the bottom of the support bar 441 is at the same level as the guide plate 44, preventing the motor housing from being stuck in the gap between the scraping blade 48 and the guide plate 44 during positioning. When the scraping blade 48 moves downward, under the action of the inclined surface at the top of the support bar 441, the support bar 441 squeezes the first spring 442 and enters the installation groove 440. Under the action of the first spring 442, the support bar 441 always fits one side of the scraping blade 48, preventing the scraped burrs from entering the knife groove.

[0050] Refer to Figure 5 , an airbag body 503 contacting the inside of the motor housing is arranged on the support plate 502.

[0051] When clamping the motor housing, the airbag body 503 can deform under force, which can not only fit the inner side wall of the motor housing and is applicable to motor housings of different sizes, but also increase the contact area with the motor housing, ensure the clamping effect, and at the same time avoid damage to the motor housing due to excessive clamping force.

[0052] Refer to Figure 1 , a feeding conveyor belt 7 and a discharging conveyor belt 8 are respectively arranged on the left and right sides of the rack 1.

[0053] The widths of the feeding conveyor belt 7 and the discharging conveyor belt 8 are equal to or less than the size of the motor housing to avoid interference with the positioning mechanism 4; in cooperation with the feeding conveyor belt 7 and the discharging conveyor belt 8, the device can replace manual loading and unloading, improve the degree of automation, and is conducive to improving production efficiency.

[0054] The implementation principle of a motor housing grinding device according to an embodiment of the present application is as follows:

[0055] After the feeding conveyor belt 7 conveys the motor housing to a specified position, the hydraulic cylinder 41 drives the connecting frame 42 to move the side plate 43 and the guide plate 44 downward. During this process, the guide plate 44 adjusts the posture of the skewed motor housing. Subsequently, the first cylinder 45 drives the movable member 46 to move the scraper 48 out. The scraper 48 moves downward along with the side plate 43 and scrapes off the larger burrs; subsequently, the third cylinder 61 drives the bottom plate 62 and the connecting rod 65 to move the clamping body 5 downward. After the clamping body 5 enters the motor housing, the output end of the second cylinder 510 drives the lifting rod 504 to move downward. The lifting rod 504 squeezes the pressing block 505 to expand the support plates 502 circumferentially arranged on the mounting member 501 outward. At this time, the second spring 508 is in a stretched state. After the plurality of support plates 502 expand circumferentially, they contact the inner wall of the motor housing to clamp and fix the motor housing. At this time, the positioning mechanism 4 moves upward and resets.

[0056] The motor 33 drives the screw 32 to move the sliding table 35. The sliding table 35 drives the driving assembly 6 and the clamping body 5 to move the motor housing between the two grinding mechanisms 2 to grind the two side surfaces of the motor housing. After the grinding of the two surfaces is completed, the third cylinder 61 drives the bottom plate 62 to move the clamping body 5 and the motor housing upward to move them out from between the grinding mechanisms 2. Subsequently, the rotary cylinder 63 drives the movable frame 64 to rotate the connecting rod 65 by 90 degrees. The connecting rod 65 drives the clamping body 5 to rotate the motor housing by 90 degrees to realize the turning over of the motor housing. The turned-over motor housing does not need to be repositioned. Subsequently, under the action of the third cylinder 61, the motor housing moves downward to the grinding position to continue the grinding operation; finally, under the action of the displacement assembly, the ground motor housing is transferred to the discharging conveyor belt 8 and transported to the next process for processing through the discharging conveyor belt 8.

[0057] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] The above is the preferred implementation mode of this application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in this application, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of this application.

Claims

1. A grinding device for a motor housing, comprising a frame, grinding mechanisms are arranged on both sides of the frame, a displacement assembly is arranged on the frame, the displacement assembly includes a slide table, a clamping body and a driving member are arranged on the slide table, the clamping body includes a mounting member, and is characterized in that: A positioning mechanism for correcting the skew of the material and a driving assembly for driving the clamping body to move are provided on the sliding table. The clamping body can clamp from the inside of the material; The positioning mechanism includes a hydraulic cylinder. A connecting frame is arranged at the output end of the hydraulic cylinder. Two side plates located outside the clamping body are arranged at the bottom of the connecting frame, and the two side plates are symmetrically arranged based on the clamping body. A guide plate inclined away from the clamping body from top to bottom is arranged at the bottom of the side plate; The driving assembly includes a third air cylinder. A bottom plate is arranged at the output end of the third air cylinder. A movable frame is rotatably arranged on the bottom plate. A connecting rod for connecting the mounting member is arranged at the bottom of the movable frame. A rotary air cylinder for driving the movable frame to rotate is arranged on the bottom plate; A cavity is arranged on the side plate. A scraper is arranged inside the cavity. A movable member is arranged above the scraper. A first air cylinder for driving the movable member to move longitudinally is arranged on the side plate; A sleeve located outside the clamping body and the driving assembly is arranged at the bottom of the connecting frame. A bidirectional lead screw is arranged on the sleeve. The side plate is slidably arranged on the sleeve and is threadedly connected to the bidirectional lead screw; An installation groove is arranged at the bottom of the side plate. A first spring and a support bar are arranged inside the installation groove. The support bar is movably connected to the installation groove through the first spring. The side of the support bar close to the scraper is a V-shaped surface.

2. The grinding device for a motor housing according to claim 1, wherein: The clamping body further includes a connecting groove. The connecting groove is circumferentially arranged inside the mounting member. An insertion block and a second spring are arranged inside the connecting groove. A support plate is arranged on the insertion block. An inclined plate inclined towards the connecting rod is arranged on the support plate. A lifting rod is sleeved inside the connecting rod. A pressing block abutted against the inclined plate is arranged at the bottom of the lifting rod.

3. The motor housing grinding device according to claim 2, wherein: An air bag body in contact with the inside of the motor housing is arranged on the support plate for tightly fixing the motor housing from the inside.

4. A grinding device for a motor housing according to claim 1, characterized in that: The displacement assembly includes a support frame. A cross plate is arranged at the top of the support frame. A screw rod, a motor and a slide bar are arranged on the cross plate. The sliding table is threadedly connected to the screw rod. The motor is used to drive the screw rod to rotate.

5. The grinding device for a motor housing according to claim 1, characterized in that: A feeding conveyor belt and a discharging conveyor belt are respectively arranged on the left and right sides of the frame.

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