Edge trimmer capable of turning over by 120 degrees

Abstract

The utility model relates to the technical field of bolt machining, in particular to a 120-degree overturning edge trimmer which comprises a base and a telescopic tool bit used for cutting a bolt blank, a positioning table used for supporting the bolt blank is movably installed on the base, a rotating assembly used for driving the positioning table to rotate is installed on the base, and the telescopic tool bit is used for cutting the bolt blank. Four clamping plates used for limiting the bolt blank are connected to the positioning table through moving pieces. A bolt blank is supported through the positioning table, the four clamping plates move oppositely after being driven by the second motor, and the bolt blank is hooped by two of the clamping plates from the front side and the rear side, so that the stability of the bolt blank on the positioning table can be guaranteed; the three evenly-distributed positioning long holes are formed in the rotary disc, the machining angle of the bolt blank can be adjusted when the rotary disc rotates, the angle of the rotary disc can be limited through movement of the positioning plate, and the cutting machining efficiency of the bolt blank is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt processing, in particular to a 120° flipping trimming machine. Background Art

[0002] A bolt is a cylindrical threaded fastener used with a nut. It is a type of fastener composed of a head and a screw rod. It needs to cooperate with a nut to be used for firmly connecting two parts with through holes. The bolt blank can be processed by a trimming machine to cut the head into a hexagonal head shape.

[0003] When the bolt blank is being produced and processed, it will be placed on a positioning table. The limiting plate clamps the bolt blank, and the obtuse-angled cutter head cuts the bolt blank. The obtuse-angled cutter head can cut one corner of the bolt blank. However, the hexagonal head shape of the bolt needs to be cut three times. After one corner of the bolt blank is processed, the limiting plate needs to be disconnected from the bolt blank, and the bolt blank is manually flipped. Then, the limiting plate is used again to limit the bolt blank. This way needs to be repeated three times to completely process the bolt blank. This causes the bolt blank to be extremely prone to tilting due to the change in the specification of the bolt blank when the limiting plate limits the bolt blank, making it impossible to guarantee its own stability during processing; when the bolt blank is adjusted for processing, it needs to be manually flipped, which not only increases the working intensity of the operator but also affects the efficiency of trimming the bolt blank. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the bolt blank needs to be manually flipped during processing in the prior art, and a 120° flipping trimming machine is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A 120° flipping trimming machine includes a base and a telescopic cutter head for cutting the bolt blank. A positioning table for supporting the bolt blank is movably installed on the base. A rotating assembly for driving the positioning table to rotate is installed on the base. Four clamping plates for limiting the bolt blank are connected to the positioning table through moving parts.

[0007] Preferably, the rotating assembly includes a motor one and a controller that are fixedly installed on the base and electrically connected. The output end of the motor one is fixedly connected to a rotating shaft one that is rotatably installed on the base. The positioning table is arranged on the rotating shaft one. A turntable is fixedly installed on the rotating shaft one, and three circumferentially distributed positioning long holes are opened on the turntable. A positioning assembly for positioning the turntable is installed on the base.

[0008] Preferably, the rotating shaft one is vertically arranged, and the included angle between two corresponding positioning long holes is 120°. The positioning table and the turntable are horizontally arranged from top to bottom.

[0009] Preferably, the positioning assembly includes a telescopic rod fixedly installed on the base and electrically connected to the controller, and a positioning plate fixedly connected to the output end of the telescopic rod and extending into the positioning long hole. Three circumferentially distributed light sensors electrically connected to the controller are fixedly installed on the turntable, and a lamp body cooperating with the light sensors is installed on the base.

[0010] Preferably, the moving member includes a second motor fixedly installed on the positioning table, and a first lead screw rotatably installed on the positioning table and fixedly connected to the output end of the second motor. A second rotating shaft is rotatably installed on the positioning table and is drivingly connected to the two first lead screws. Two second lead screws drivingly connected to the second rotating shaft are rotatably installed on the positioning table. Two matching nuts are slidably sleeved on the first lead screw, and a matching nut is slidably sleeved on the second lead screw. A connecting end is fixedly installed on the nut and the nut, and the four clamping plates are respectively arranged on the four connecting ends.

[0011] Preferably, the second rotating shaft is horizontally arranged on both sides of the first lead screw, and the two second lead screws are longitudinally arranged on both sides of the first lead screw. A transmission belt is connected between the first lead screw and the left second rotating shaft and between the first lead screw and the right second rotating shaft through a coupling. A first gear and a second gear meshing with each other are respectively fixedly installed on the second rotating shaft and the second lead screw. The clamping plate and the connecting end extend to the upper end position outside the positioning table. A limiting hole for guiding the connecting end is opened on the base, and the clamping plate is an arc-shaped structure adapted to the bolt blank;

[0012] Preferably, a rubber pad that abuts against the bolt blank movably is arranged on the clamping plate, and a connecting concave plate extending to the clamping plate is arranged on the rubber pad. A fixing bolt connected to the clamping plate is threadedly connected to the connecting concave plate.

[0013] Compared with the prior art, the present utility model has the following advantages:

[0014] 1. The present utility model supports the bolt blank through the positioning table. After the second motor is driven, the four clamping plates move towards each other. Two of the clamping plates clamp the bolt blank from the front and rear positions, and the other two clamping plates clamp the bolt blank from the left and right positions, so that the bolt blank can ensure its own stability on the positioning table.

[0015] 2. The present utility model adjusts the processing angle of the bolt blank when the turntable rotates by opening three uniformly distributed positioning long holes on the turntable, and limits the angle of the turntable through the movement of the positioning plate, which not only reduces the working intensity of the operator but also improves the cutting processing efficiency of the bolt blank. Description of the Drawings

[0016] Figure 1Schematic diagram of the structure of a 120° flipping trimming machine proposed by the present utility model;

[0017] Figure 2 Cross-sectional view of a 120° flipping trimming machine proposed by the present utility model;

[0018] Figure 3 Top view of the positioning table of a 120° flipping trimming machine proposed by the present utility model;

[0019] Figure 4 Top cross-sectional view of the positioning table of a 120° flipping trimming machine proposed by the present utility model;

[0020] Figure 5 Top cross-sectional view of the turntable of a 120° flipping trimming machine proposed by the present utility model;

[0021] Figure 6 Schematic diagram of the clamping plate of a 120° flipping trimming machine proposed by the present utility model.

[0022] In the figure: 1, base; 2, telescopic cutter head; 3, motor 1; 4, rotating shaft 1; 5, turntable; 6, positioning table; 7, positioning long hole; 8, lamp body; 9, light sensor; 10, telescopic rod; 11, positioning plate; 12, motor 2; 13, lead screw 1; 14, rotating shaft 2; 15, lead screw 2; 16, transmission belt; 17, gear 1; 18, gear 2; 19, nut 1; 20, nut 2; 21, connection end; 22, clamping plate. Specific implementation manner

[0023] 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.

[0024] Refer to Figures 1 - 6 , a 120° flipping trimming machine, including a base 1 and a telescopic cutter head 2 for cutting bolt blanks. A positioning table 6 for supporting bolt blanks is movably installed on the base 1, and a rotating assembly for driving the positioning table 6 to rotate is installed on the base 1;

[0025] The rotating assembly includes a motor 1 3 and a controller that are fixedly installed on the base 1 and electrically connected. The output end of the motor 1 3 is fixedly connected to a rotating shaft 1 4 that is rotatably installed on the base 1, and the positioning table 6 is arranged on the rotating shaft 1 4;

[0026] A turntable 5 is fixedly installed on the rotating shaft 1 4, and three circumferentially distributed positioning long holes 7 are opened on the turntable 5. The rotating shaft 1 4 is vertically arranged, and the included angle between two corresponding positioning long holes 7 is 120°. The positioning table 6 and the turntable 5 are horizontally arranged from top to bottom;

[0027] By providing three circumferentially distributed positioning long holes 7 on the turntable 5, and the included angle between two corresponding positioning long holes 7 being 120°, such that the angle of each processing of the bolt blank is 120°, after the bolt blank is processed three times, a hexagonal head can be cut out;

[0028] A positioning component for positioning the turntable 5 is installed on the base 1;

[0029] The positioning component includes a telescopic rod 10 fixedly installed on the base 1 and electrically connected to the controller. The output end of the telescopic rod 10 is fixedly connected to a positioning plate 11 extending into the positioning long hole 7. Three circumferentially distributed light sensors 9 electrically connected to the controller are fixedly installed on the turntable 5. A lamp body 8 cooperating with the light sensors 9 is installed on the base 1. When the turntable 5 rotates, one of the light sensors 9 is driven to correspond to the lamp body 8. When the light sensor 9 senses that the light source degree exceeds the specified threshold, it immediately sends a command to the controller, and the controller immediately sends a signal to the telescopic rod 10. After the output end of the telescopic rod 10 expands and contracts, it drives the positioning plate 11 to extend into the positioning long hole 7, thereby positioning the rotated turntable 5;

[0030] Four clamping plates 22 for limiting the bolt blank are connected to the positioning table 6 through moving members;

[0031] The moving members include a second motor 12 fixedly installed on the positioning table 6. The output end of the second motor 12 is fixedly connected to a first lead screw 13 rotatably installed on the positioning table 6. A second rotating shaft 14 rotatably installed on the positioning table 6 and drivingly connected to the two first lead screws 13 is horizontally arranged on both sides of the first lead screw 13. Two second lead screws 15 are longitudinally arranged on both sides of the first lead screw 13. A transmission belt 16 is connected between the first lead screw 13 and the left second rotating shaft 14, and between the first lead screw 13 and the right second rotating shaft 14 through couplings. The transmission belt 16 is a synchronous belt, which has the advantages of being compact and not easily slipping, enabling the first lead screw 13 and the two second rotating shafts 14 to rotate synchronously;

[0032] Two second lead screws 15 rotatably installed on the positioning table 6 and drivingly connected to the second rotating shaft 14 are provided. A first gear 17 and a second gear 18 which are meshingly connected are respectively fixedly installed on the second rotating shaft 14 and the second lead screw 15. The first gear 17 and the second gear 18 are helical gears with the same number of teeth, enabling the second rotating shaft 14 and the second lead screw 15 to rotate at the same speed and in opposite directions. Two matching nuts 19 are slidably sleeved on the first lead screw 13, and two matching nuts 20 are slidably sleeved on the second lead screw 15. Connection ends 21 are fixedly installed on the nuts 19 and the nuts 20, and the four clamping plates 22 are respectively arranged on the four connection ends 21;

[0033] The clamping plate 22 and the connecting end 21 extend to the upper end position outside the positioning table 6. A limiting hole for guiding the connecting end 21 is formed on the base 1. The limiting hole guides the connecting end 21, thereby limiting the moving direction of the first nut 19 and the second nut 20. The clamping plate 22 is an arc-shaped structure adapted to the bolt blank;

[0034] A rubber pad that abuts against the bolt blank movably is provided on the clamping plate 22, and a connecting concave plate extending to the clamping plate 22 is provided on the rubber pad. A fixing bolt connected to the clamping plate 22 is threadedly connected to the connecting concave plate. By providing the rubber pad on the clamping plate 22, the rubber pad can buffer the excessive extrusion of the clamping plate 22 on the bolt blank, avoiding damage to the bolt blank during limiting;

[0035] When the bolt blank needs to be positioned, the second motor 12 drives the two first nuts 19 and the two second nuts 20 to move towards each other, so that two of the clamping plates 22 clamp the bolt blank from the left and right positions, and the other two clamping plates 22 clamp the bolt blank from the front and back positions. This not only ensures the stability of the bolt blank during processing, but also eliminates the need for manual flipping when the bolt blank is flipped, thereby improving the processing efficiency of the bolt blank;

[0036] It should be noted that the specific model specifications of the telescopic tool bit 2, the first motor 3, the lamp body 8, the light sensor 9, the telescopic rod 10, and the second motor 12 need to be selected according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated here.

[0037] The functional principle of the present utility model can be described through the following operation method:

[0038] Place the bolt blank on the positioning table 6;

[0039] The output end of the second motor 12 drives the first lead screw 13 to rotate. The first lead screw 13 drives the two second rotating shafts 14 to rotate through the two transmission belts 16. When the second rotating shafts 14 rotate, they drive the second lead screw 15 to rotate through the meshing first gear 17 and second gear 18. The first lead screw 13 drives the two first nuts 19 to move towards each other, and the second lead screw 15 drives the second nut 20 to move horizontally;

[0040] The first nut 19 drives the connecting end 21 and the clamping plate 22 to move, so that the clamping plate 22 clamps the bolt blank from the left and right positions, and the rubber pad on the clamping plate 22 can be mutually extruded with the bolt blank;

[0041] The second nut 20 drives the connecting end 21 and the clamping plate 22 to move, so that the clamping plate 22 clamps the bolt blank from the front and back positions;

[0042] The output end of the first motor 3 drives the first rotating shaft 4 to rotate. The first rotating shaft 4 drives the turntable 5 to rotate. When the turntable 5 rotates, it drives one of the light sensors 9 to correspond to the lamp body 8. The light source emitted by the lamp body 8 irradiates on the light sensor 9. When the light sensor 9 senses that the light source intensity exceeds the specified threshold, it immediately sends an instruction to the controller, and the controller sends a shutdown instruction to the first motor 3;

[0043] The controller immediately sends a signal to the telescopic rod 10. The output end of the telescopic rod 10 expands and contracts to drive the positioning plate 11 to extend into the specified positioning plate 11. After the telescopic cutting tool 2 is energized, it cuts the bolt blank;

[0044] After one side of the bolt blank is processed, the telescopic cutting tool 2 and the positioning plate 11 return to the initial position. The output end of the first motor 3 drives the first rotating shaft 4 to continue rotating, so that the other light sensor 9 corresponds to the lamp body 8, so that the bolt blank can be fully processed after rotating three times in sequence.

[0045] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A 120° flip trimming machine, comprising a base (1) and a retractable cutter head (2) for cutting bolt blanks, characterized in that: A positioning platform (6) for supporting the bolt blank is movably mounted on the base (1), a rotating assembly for driving the positioning platform (6) to rotate is mounted on the base (1), and four clamping plates (22) for limiting the position of the bolt blank are connected to the positioning platform (6) via moving parts.

2. A 120° flip trimming machine according to claim 1, characterized in that: The rotating assembly comprises a motor (3) and a controller fixedly mounted on a base (1) and electrically connected thereto, and an output end of the motor (3) is fixedly connected to a rotating shaft (4) rotatably mounted on the base (1), the positioning platform (6) is arranged on the rotating shaft (4), a rotating disk (5) is fixedly mounted on the rotating shaft (4), and the rotating disk (5) is provided with three circumferentially distributed positioning long holes (7), and a positioning assembly for positioning the rotating disk (5) is installed on the base (1).

3. The 120° flip trimming machine according to claim 2, characterized in that: The rotating shaft 1 (4) is arranged vertically, and the angle between the two corresponding positioning long holes (7) is 120°. The positioning platform (6) and the rotating disk (5) are arranged horizontally from top to bottom.

4. The 120° flip trimming machine according to claim 2, characterized in that: The positioning assembly comprises a telescopic rod (10) fixedly mounted on the base (1) and electrically connected to the controller, and a positioning plate (11) extending into the positioning slot (7) is fixedly connected to the output end of the telescopic rod (10), three circumferentially distributed light sensors (9) electrically connected to the controller are fixedly mounted on the turntable (5), and a lamp body (8) matching the light sensor (9) is mounted on the base (1).

5. The 120° flip trimming machine according to claim 1, characterized in that: The movable member comprises a second motor (12) fixedly mounted on the positioning platform (6), and the output end of the second motor (12) is fixedly connected to a first screw rod (13) rotatably mounted on the positioning platform (6), a second rotating shaft (14) rotatably mounted on the positioning platform (6) and connected to the two first screw rods (13), two second screw rods (15) rotatably mounted on the positioning platform (6) and connected to the second rotating shaft (14), two first nuts (19) matching each other are provided on the sliding sleeve on the first screw rod (13), a second nut (20) matching each other is provided on the sliding sleeve on the second screw rod (15), connecting ends (21) are fixedly mounted on the first nut (19) and the second nut (20), and the four clamping plates (22) are respectively arranged on the four connecting ends (21).

6. The 120° flip trimming machine according to claim 5, characterized in that: The rotating shaft 2 (14) is horizontally arranged at both sides of the screw rod 1 (13), and the two screw rods 2 (15) are longitudinally arranged at both sides of the screw rod 1 (13). A transmission belt (16) is connected between the screw rod 1 (13) and the left rotating shaft 2 (14), and between the screw rod 1 (13) and the right rotating shaft 2 (14) via a coupling. The rotating shaft 2 (14) and the screw rod 2 (15) are respectively fixedly mounted with a meshing gear 1 (17) and a gear 2 (18). The clamping plate (22) and the connecting end (21) extend to the upper end position outside the positioning platform (6). The base (1) is provided with a limiting hole for guiding the connecting end (21). The clamping plate (22) is an arc-shaped structure adapted to the bolt blank.

7. The 120° flip trimming machine according to claim 5, characterized in that: The clamping plate (22) is provided with a rubber pad that movably contacts the bolt blank, and the rubber pad is provided with a connecting concave plate that extends to the clamping plate (22), and a fixing bolt connected to the clamping plate (22) is threadedly connected to the connecting concave plate.

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