Positioning device for nut polishing

Abstract

The utility model relates to the technical field of nut machining, in particular to a positioning device for nut polishing, which comprises a bottom plate and a polishing mechanism arranged above the bottom plate, a machining table is fixedly mounted at the top of the bottom plate, and a rotatable rotating table is arranged at the top of the machining table. A plurality of positioning mechanisms distributed in a circular array are arranged at the top of the rotating table; the positioning mechanism comprises a groove formed in the top of the rotating table, a second clamping plate made of a magnetic metal material is slidably connected into the groove, a first clamping plate abuts against the side, away from the circle center of the rotating table, of the second clamping plate, and a first supporting plate is fixedly installed between the bottom of the first clamping plate and the top of the rotating table; by adjusting the distance between the first clamping plate and the second clamping plate, nuts of different sizes can be conveniently and rapidly clamped, the clamping requirements of the nuts of different sizes are met, operation is easy, use is convenient, and the bolt machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of nut processing technology, and specifically discloses a positioning device for nut grinding. Background Technology

[0002] Currently, nuts are also known as bolt nuts, which are parts that are screwed together with bolts or screws to perform a fastening function. They are a type of component that all manufacturing machinery must use. Depending on the material, they are divided into several types, such as carbon steel, stainless steel, and non-ferrous metals (such as copper).

[0003] Chinese Patent No. CN221716485U discloses a positioning and grinding device for nut production, including a base plate. A first motor is fixedly mounted on the top of the base plate, and a turntable is fixedly mounted at the output end of the first motor. The turntable has several placement slots, each with a through hole at its center. A column is fixedly mounted on the top of the base plate, and a support plate is fixedly mounted on the outside of the column. This invention places the nut inside the placement slot, then starts the first motor, which drives the turntable to rotate, causing the nut inside the placement slot to move until it reaches the position of the grinding mechanism and the fixing mechanism. The fixing mechanism then secures the nut, and the grinding mechanism performs grinding. After grinding, the fixing mechanism releases, and the first motor starts again, driving the turntable to continue moving until the next nut is ground. The ground nut is then removed, and the nut to be ground is placed in the next slot. This ensures the continuity of the grinding process. 。

[0004] In actual use, the above-mentioned device places the nut in the mounting slot and fixes it through the fixing mechanism. Since the size of the through hole is fixed, the movement position of the two clamping plates is limited. It can only clamp and fix nuts of the same size and cannot meet the clamping requirements of nuts of different sizes. Its application range is limited. Moreover, when clamping and fixing the nut, it is also necessary to adjust the height of the two clamping plates to pass through the through hole and adjust the distance between the two clamping plates. The operation is cumbersome, resulting in slow bolt fixing speed and affecting processing efficiency. Utility Model Content

[0005] This utility model proposes a positioning device for nut grinding. By adjusting the distance between the first clamping plate and the second clamping plate, it is convenient to quickly clamp nuts of different sizes, adapt to the clamping needs of nuts of different sizes, and is simple to operate and easy to use, thereby improving the processing efficiency of bolts.

[0006] This utility model is implemented as follows: a positioning device for grinding nuts includes a base plate and a grinding mechanism disposed above the base plate. A processing table is fixedly installed on the top of the base plate, and a rotatable rotating table is disposed on the top of the processing table. Multiple positioning mechanisms are arranged in a circular array on the top of the rotating table. The positioning mechanism includes a groove formed on the top of the rotating table. A second clamping plate made of magnetic metal is slidably connected inside the groove. A first clamping plate abuts against the side of the second clamping plate away from the center of the rotating table. A first support plate is fixedly installed between the bottom of the first clamping plate and the top of the rotating table. A second support plate of the same height as the first support plate is fixedly installed on the side of the second clamping plate near the center of the rotating table. A through hole is formed inside the groove on the side near the center of the rotating table.

[0007] The rotary table has a support platform inside, and an electric actuator is fixedly installed on the top of the support platform. An electromagnetic plate corresponding to one of the through holes is fixedly installed at the output end of the electric actuator. When the electromagnetic plate is energized, it can generate magnetic force to attract the second support plate.

[0008] As a preferred embodiment of the positioning device for nut grinding according to this utility model, a toothed ring is fixedly sleeved on the outer side wall of the rotary table, a first motor is fixedly installed on the top of the processing table, and a gear that meshes with the toothed ring is fixedly installed on the output end of the first motor.

[0009] As a preferred positioning device for nut grinding according to this utility model, the top of the processing table is fixedly installed with an annular slide rail, and the bottom of the rotary table is provided with a slide groove, which is slidably connected to the outer wall of the slide rail.

[0010] As a preferred positioning device for nut grinding according to this utility model, a limiting groove is formed on the side of the groove away from the center of the rotary table. A spring is fixedly connected to the inner wall of the limiting groove, and the other end of the spring is connected to a second clamping plate to provide a reset elastic force.

[0011] In a preferred embodiment of the positioning device for nut grinding according to this utility model, the grinding mechanism is located below one of the positioning mechanisms. The grinding mechanism includes an L-shaped fixed plate fixedly installed on the top of the processing table. A U-shaped rotating plate is provided inside the top of the fixed plate. A bidirectional screw is rotatably connected inside the rotating plate. Two left and right sliding blocks are threadedly connected to the outer wall of the bidirectional screw. Grinding brushes are fixedly installed at the bottom of the two sliding blocks. A third motor is fixedly installed on the outer wall of the rotating plate. The output end of the third motor is coaxially fixedly connected to the bidirectional screw.

[0012] As a preferred embodiment of the positioning device for nut grinding according to this utility model, a second motor is fixedly installed on the top of the fixed plate, and the output end of the second motor passes through the top of the fixed plate and is fixedly connected to the rotating plate.

[0013] As a preferred embodiment of the positioning device for nut grinding according to this utility model, the first clamping plate and the second clamping plate are at the same height.

[0014] The beneficial effects of this utility model are:

[0015] 1. The electromagnetic plate is controlled by an electric actuator, which uses magnetic force to attract the second clamping plate and cooperate with the first clamping plate to clamp the nut. By adjusting the distance between the first and second clamping plates, and with the support of the first and second support plates, it is easy to quickly clamp and fix nuts of different sizes. The operation is simple and convenient.

[0016] 2. The first motor drives the gear and the gear ring to mesh, driving the rotary table to rotate. With the help of the ring slide rail and the slide groove guide, the grinding position is accurate. The circular array positioning mechanism switches the station with the rotary table, and multiple stations work simultaneously. While grinding, other stations can load or unload materials at the same time, improving processing efficiency. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a front sectional view of a positioning device for grinding nuts according to this utility model.

[0019] Figure 2 This is a top view of the rotating platform of this utility model.

[0020] Figure 3 This is an enlarged structural view of section a of this utility model.

[0021] Figure 4 This is a structural diagram of the processing table of this utility model.

[0022] The markings in the diagram are: 1. Base plate; 2. Machining table; 201. Slide rail; 3. Rotary table; 301. Slide groove; 302. Gear ring; 303. Gear; 304. First motor; 4. Support table; 401. Electric actuator; 402. Electromagnetic plate; 5. Groove; 501. First support plate; 502. First clamping plate; 503. Second clamping plate; 504. Second support plate; 505. Limiting groove; 506. Spring; 507. Through hole; 6. Fixing plate; 601. Second motor; 7. Rotating plate; 701. Bidirectional screw; 702. Third motor; 8. Slider; 801. Grinding brush. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-4 A positioning device for grinding nuts includes a base plate 1 and a grinding mechanism disposed above the base plate 1. A processing table 2 is fixedly installed on the top of the base plate 1, and a rotatable rotary table 3 is disposed on the top of the processing table 2. A plurality of positioning mechanisms are arranged in a circular array on the top of the rotary table 3. The positioning mechanism includes a groove 5 opened on the top of the rotary table 3. A second clamping plate 503 made of magnetic metal is slidably connected inside the groove 5. A first clamping plate 502 is abutted on the side of the second clamping plate 503 away from the center of the rotary table 3. A first support plate 501 is fixedly installed between the bottom of the first clamping plate 502 and the top of the rotary table 3. A second support plate 504 of the same height as the first support plate 501 is fixedly installed on the side of the second clamping plate 503 near the center of the rotary table 3. A through hole 507 is opened inside the groove 5 on the side near the center of the rotary table 3.

[0025] The rotary table 3 has a support platform 4 inside. An electric push rod 401 is fixedly installed on the top of the support platform 4. An electromagnetic plate 402 corresponding to one of the through holes 507 is fixedly installed at the output end of the electric push rod 401. When the electromagnetic plate 402 is energized, it can generate magnetic force to attract the second support plate 504.

[0026] In this embodiment: Nuts are sequentially fitted onto the first clamping plate 502 and the second clamping plate 503 of the fixing mechanism, and the first support plate 501 and the second support plate 504 can support the nuts. The first motor 304 is started to drive the gear 303 to mesh with the gear ring 302, driving the rotary table 3 to rotate smoothly along the slide rail 201. Multiple circular array positioning mechanisms are sequentially sent into the grinding station. The electric push rod 401 is started to push the electromagnetic plate 402 into the through hole 507. After the electromagnetic plate 402 is energized, it generates magnetic force to attract and fix the second clamping plate 503, so that the second clamping plate 503 cooperates with the fixed first clamping plate 502 to form a clamping force. With the support and cooperation of the first support plate 501 and the second support plate 504, nuts of different sizes can be quickly clamped to meet the clamping requirements of nuts of different sizes.

[0027] The nut is polished by starting the polishing mechanism. After polishing, the electromagnetic plate 402 is demagnetized and reset. After polishing one station is completed, the rotary table 3 automatically rotates to the next station, and the electromagnetic plate 402 continues to move to the corresponding through hole 507 to continue the operation, forming a continuous processing cycle.

[0028] The first motor 304, the second motor 601, and the third motor 702 are all worm gear motors.

[0029] As a technical optimization of this utility model, a gear ring 302 is fixedly sleeved on the outer side wall of the rotary table 3, and a first motor 304 is fixedly installed on the top of the processing table 2. A gear 303 that meshes with the gear ring 302 is fixedly installed at the output end of the first motor 304.

[0030] In this embodiment: starting the first motor 304 can drive the gear 303 fixed coaxially with it. Since the gear ring 302 is meshed with the gear 303, the rotation of the gear ring 302 can drive the gear 303 to rotate.

[0031] As a technical optimization of this utility model, the top of the processing table 2 is fixedly installed with a ring-shaped slide rail 201, and the bottom of the rotary table 3 is provided with a slide groove 301, which is slidably connected to the outer wall of the slide rail 201.

[0032] In this embodiment: the slide rail 201 can withstand the gravity from the rotary table 3 and its components, providing a stable support surface for the rotary table 3. Since the slide rail 201 is annular, when the rotary table 3 rotates, the slide groove 301 slides along the outer wall of the slide rail 201, restricting the rotary table 3 to rotate only along the annular trajectory, thus ensuring the stability and accuracy of the rotary table 3 during rotation.

[0033] As a technical optimization of this utility model, a limiting groove 505 is provided on the side of the groove 5 away from the center of the rotating table 3. A spring 506 is fixedly connected to the inner wall of the limiting groove 505, and the other end of the spring 506 is connected to the second clamping plate 503 to provide a reset elastic force.

[0034] In this embodiment: In the initial state, the spring 506 is in a naturally extended state, so that the second clamping plate 503 is in close contact with the first clamping plate 502. When the first clamping plate 502 and the second clamping plate 503 move away from each other, the spring 506 can be stretched. When the spring 506 rebounds after being stretched, the elastic force of the spring 506 can push the second clamping plate 503 to reset. The limiting groove 505 plays a limiting role in the movement of the second clamping plate 503, ensuring that the second clamping plate 503 will not move excessively and leave its normal working position under the action of the spring 506.

[0035] As a technical optimization of this utility model, the grinding mechanism is located below one of the positioning mechanisms. The grinding mechanism includes a fixed plate 6 that is fixedly installed on the top of the processing table 2 and is L-shaped. The top of the fixed plate 6 is provided with a rotatable rotating plate 7 that is U-shaped. The rotating plate 7 is rotatably connected to a bidirectional screw 701. The outer wall of the bidirectional screw 701 is threadedly connected to two left and right distributed sliders 8. The bottom of each slider 8 is fixedly installed with a grinding brush 801. The outer wall of the rotating plate 7 is fixedly installed with a third motor 702. The output end of the third motor 702 is coaxially fixedly connected to the bidirectional screw 701.

[0036] In this embodiment: the fixed plate 6 is L-shaped, providing a stable support structure for the entire grinding mechanism. The third motor 702 is started to drive the bidirectional screw 701 to rotate, which can drive the two sliders 8 to move towards or away from each other. Since the bottom of the two sliders 8 is fixedly installed with grinding brushes 801, the movement of the sliders 8 will drive the grinding brushes 801 to move closer or further away in the horizontal direction, thereby adjusting the distance between the two grinding brushes 801 to adapt to nuts of different widths.

[0037] As a technical optimization of this utility model, a second motor 601 is fixedly installed on the top of the fixed plate 6, and the output end of the second motor 601 passes through the top of the fixed plate 6 and is fixedly connected to the rotating plate 7.

[0038] In this embodiment: by starting the second motor 601, the rotating plate 7 can be driven to rotate.

[0039] As a technical optimization of this utility model, the first clamping plate 502 and the second clamping plate 503 are of the same height.

[0040] In this embodiment, the first clamping plate 502 and the second clamping plate 503 are at the same height, which makes it easy to put the nut on the first clamping plate 502 and the second clamping plate 503. Rubber pads can be fixedly connected to both sides of the first clamping plate 502 and the second clamping plate 503 to increase the friction between the first clamping plate 502 and the second clamping plate 503 and the bolt, and to stably clamp the bolt.

[0041] The working principle and usage process of this utility model: The device is electrically connected to an external power supply and a PLC controller. During use, the operator sequentially places the nut onto the first clamping plate 502 and the second clamping plate 503 of the fixing mechanism. The first support plate 501 and the second support plate 504 provide support for the nut, facilitating grinding. Then, the first motor 304 is started, driving the gear 303 to mesh with the gear ring 302, causing the rotary table 3 to rotate smoothly along the slide rail 201. This sequentially feeds the multiple circularly arrayed positioning mechanisms into the grinding station. Figure 1 As shown, the PLC controller can control the first motor 304 to drive the rotary table 3 to rotate at each angle. When the nut moves to the position directly below the electromagnetic plate 402, the PLC controller controls the first motor 304 to stop running and starts the electric push rod 401 to push the electromagnetic plate 402 into the through hole 507. After the electromagnetic plate 402 is energized, it generates magnetic force. Since the second clamping plate 503 is made of magnetic metal (low carbon steel), it can attract the second clamping plate 503 to slide towards the center and fix the second clamping plate 503. At this time, the second clamping plate 503 stretches the spring 506, causing the second clamping plate 503 to cooperate with the first clamping plate 502 to form a clamping force. And through the support cooperation of the first support plate 501 and the second support plate 504, the nut can be quickly clamped.

[0042] The third motor 702 is started to drive the bidirectional screw 701 to rotate, causing the two sliders 8 to move the grinding brushes 801 synchronously closer or further away, adapting to the grinding needs of nuts of different sizes. The second motor 601 is started to drive the rotating plate 7 to rotate, causing the two grinding brushes 801 to rotate along the nut and grind the outer wall of the nut. After grinding is completed, the electromagnetic plate 402 is de-energized and demagnetized, and the spring 506 rebounds to push the second clamping plate 503 to reset, which can release the clamping of the nut. After the grinding of one station is completed, the rotary table 3 automatically rotates to the next station, and the electromagnetic plate 402 continues to move to the corresponding through hole 507 to continue the operation, forming a continuous processing cycle.

[0043] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A positioning device for nut polishing, comprising a base plate (1) and a polishing mechanism arranged above the base plate (1), characterized in that: The top of the bottom plate (1) is fixedly installed with a processing table (2), the top of the processing table (2) is provided with a rotatable rotating table (3), the top of the rotating table (3) is provided with a plurality of circular array distributed positioning mechanisms, the positioning mechanism comprises a groove (5) opened in the top of the rotating table (3), the inside of the groove (5) is slidably connected with a second clamping plate (503) made of magnetic metal material, the side of the second clamping plate (503) away from the center of the rotating table (3) is abutted with a first clamping plate (502), the bottom of the first clamping plate (502) and the top of the rotating table (3) are fixedly installed with a first supporting plate (501), the side of the second clamping plate (503) close to the center of the rotating table (3) is fixedly installed with a second supporting plate (504) which is the same height as the first supporting plate (501), the side of the groove (5) close to the center of the rotating table (3) is provided with a through hole (507). The inside of the rotating table (3) is provided with a supporting table (4), the top of the supporting table (4) is fixedly installed with an electric push rod (401), the output end of the electric push rod (401) is fixedly installed with an electromagnetic plate (402) corresponding to one of the through holes (507), the electromagnetic plate (402) can generate magnetic force after being electrified, which is used for attracting the second supporting plate (504).

2. The nut polishing positioning device according to claim 1, wherein: The outer side wall of the rotating table (3) is fixedly sleeved with a gear ring (302), the top of the processing table (2) is fixedly installed with a first motor (304), the output end of the first motor (304) is fixedly installed with a gear (303) meshingly connected with the gear ring (302).

3. The nut polishing positioning device according to claim 1, wherein: The top of the processing table (2) is fixedly installed with an annular slide rail (201), the bottom of the rotating table (3) is provided with a sliding groove (301), the sliding groove (301) is slidably connected to the outer side wall of the slide rail (201).

4. The nut polishing positioning device according to claim 1, wherein: The side of the groove (5) away from the center of the rotating table (3) is provided with a limiting groove (505), the inner wall of the limiting groove (505) is fixedly connected with a spring (506), and the other end of the spring (506) is connected with the second clamping plate (503) for providing reset elastic force.

5. The nut polishing positioning device according to claim 1, wherein: The polishing mechanism is located below one of the positioning mechanisms, the polishing mechanism comprises a fixed plate (6) fixedly installed on the top of the processing table (2) and in L shape, the inside top of the fixed plate (6) is provided with a rotatable U-shaped rotating plate (7), the inside of the rotating plate (7) is rotatably connected with a bidirectional screw rod (701), the outer side wall of the bidirectional screw rod (701) is threadedly connected with two left and right distributed sliding blocks (8), the bottom of each of the two sliding blocks (8) is fixedly installed with a polishing brush (801), the outer side wall of the rotating plate (7) is fixedly installed with a third motor (702), and the output end of the third motor (702) is coaxially fixedly connected with the bidirectional screw rod (701).

6. The nut polishing positioning device according to claim 5, wherein: The top of the fixed plate (6) is fixedly installed with a second motor (601), the output end of the second motor (601) penetrates the top of the fixed plate (6) and is fixedly connected with the rotating plate (7).

7. The nut polishing positioning device according to claim 1, wherein: The first clamping plate (502) and the second clamping plate (503) are equal in height.

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