Limiting frame provided with edge wrapping structure and used for cutterhead trepanning

Abstract

The utility model relates to the technical field of cutterhead machining, and particularly discloses a cutterhead tapping limiting frame with an edge wrapping structure, which comprises a fixed support frame, the lower end of the fixed support frame is fixedly connected with a bearing bottom frame, the upper surface of the bearing bottom frame is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a first gear, and the output end of the first gear is fixedly connected with a second gear. And a second gear is mounted on the lower surface of the fixed supporting frame. The limiting frame with the edge wrapping structure and used for cutter head tapping is provided with a piston column and an attaching air bag, when the limiting frame works, a linkage sliding block is driven by a lateral clamping plate to abut against the side surface of a workpiece, along with movement of the linkage sliding block, the linkage sliding block slides relative to the piston column, and the piston column conveniently pushes air into a cavity of the attaching air bag; and the attaching air bag wraps the side surface of the attached workpiece after being expanded, the friction force for limiting the workpiece is increased, meanwhile, damage to the side surface of the workpiece is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of tool disc processing technology, specifically a tool disc opening limiter with an edge-wrapping structure. Background Technology

[0002] The working principle of a lawnmower is as follows: after the engine starts, the drive shaft rotates, driving the clutch friction plate to work and transmitting horsepower to the transmission. After adjustment, it drives the differential, which transmits power to the two wheels respectively. At the same time, the drive shaft drives the mowing blades to rotate. The blades are perpendicular to the ground, and the lawnmower moves and the blades rotate in coordination to cut the grass. The cutter head is equipped with mowing blades, which are directly mounted on the engine output shaft. During operation, it rotates at high speed to cut grass stems. Some models are also equipped with fan blades. When machining the cutter head, various mounting holes and connecting holes need to be drilled on the cutter head for mounting blades, bearings, pulleys and other components. When drilling, attention should be paid to the drill bit speed and feed rate to prevent drilling deviation or holes that do not meet the requirements.

[0003] When drilling holes, existing cutter heads need to be limited and fixed by tooling to prevent loosening during drilling. However, existing cutter head limiting devices generally use clamping plates to hold and fix the sides of the cutting blades. However, the clamping plates do not fit the cutter head well, which can easily cause the cutter head to shift due to impact during processing. Utility Model Content

[0004] The purpose of this utility model is to provide a limiting bracket for opening a cutter head with an edge-wrapping structure, so as to solve the problem mentioned in the background art that the existing cutter head limiting device generally uses a clamping plate to clamp and fix the side of the blade. However, the clamping plate has a poor fit with the cutter head, which easily leads to the cutter head being impacted and shifting during processing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a limiting frame for opening a cutter head with an edge-wrapping structure, comprising a fixed support frame, a supporting base frame fixedly connected to its lower end, a drive motor fixedly connected to the upper surface of the supporting base frame, a first gear fixedly connected to the output end of the drive motor, a second gear mounted on the lower surface of the fixed support frame, a transmission screw fixedly connected to one end of the shaft of the second gear, a positioning slider mounted on the outer surface of the transmission screw, the positioning slider penetrating the surface of the fixed support frame, and a lateral clamping plate fixed to the upper surface of the positioning slider, two piston pins fixedly connected to the side surface of the lateral clamping plate, a linkage slider mounted on the outer surface of one end of the piston pins, a fitting airbag fixed to the side surface of the linkage slider, and a linkage pressing mechanism provided between the lateral clamping plate and the linkage slider, which drives the transmission gear to rotate through a first toothed plate, causing the second toothed plate to drive the auxiliary pressure plate to press down and limit the movement.

[0006] Preferably, the second gear is circumferentially distributed about the center of the first gear, the second gear is rotatably connected to the fixed support frame, and the second gear and the first gear are meshed together.

[0007] By adopting the above technical solution, the uniform distribution of the second gear facilitates the rotation of the second gear by the rotation of the first gear.

[0008] Preferably, the transmission screw is rotatably connected to the fixed support frame, the transmission screw is threadedly connected to the positioning slider, and the positioning slider is slidably connected to the fixed support frame.

[0009] By adopting the above technical solution, the rotation of the second gear causes the transmission screw to rotate, and the transmission screw causes the positioning slider to slide.

[0010] Preferably, the lateral clamp is arc-shaped, the linkage slider is arc-shaped, the linkage slider and the piston column are slidably connected, and the cavity of the airbag is connected to the piston column.

[0011] Using the above technical solution, the arc design of the side clamp and the linkage slider facilitates the movement of the linkage slider, and then the piston column inflates the fitting airbag.

[0012] Preferably, the linkage pressing mechanism includes a first toothed plate, which is fixedly connected to the side surface of the linkage slider. A transmission gear is rotatably provided on the side surface of the lateral clamping plate. A second toothed plate is installed on the upper surface of the lateral clamping plate, and an auxiliary pressing plate is provided on the lower surface of one end of the second toothed plate.

[0013] Using the above technical solution, the linkage pressing mechanism causes the linkage slider to drive the first toothed plate to move, causing the first toothed plate to mesh with the transmission gear.

[0014] Preferably, one end of the first toothed plate extends through the surface of the lateral clamping plate, a toothed block is provided on the lower surface of the first toothed plate, and the first toothed plate is meshed with the transmission gear through the toothed block.

[0015] Using the above technical solution, the first toothed plate moves, and at the same time, the first toothed plate drives the transmission gear to rotate through the tooth block.

[0016] Preferably, the second toothed plate is L-shaped, a spring is connected between the second toothed plate and the side clamping plate, a tooth block is provided on one side surface of the second toothed plate, and the second toothed plate is meshed with the transmission gear through the tooth block. The second toothed plate is slidably connected with the auxiliary pressure plate, and a spring is connected between the second toothed plate and the auxiliary pressure plate.

[0017] By adopting the above technical solution, the rotation of the transmission gear causes the second toothed plate to move vertically.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the limiting bracket for the cutter head opening with the edge-wrapping structure:

[0019] 1. Equipped with a piston column and a fitting airbag, when the device is working, the lateral clamping plate drives the linkage slider to press against the side surface of the workpiece. As the linkage slider moves, it slides relative to the piston column, which facilitates the piston column to push air into the cavity of the fitting airbag. This causes the fitting airbag to expand and cover the side surface of the workpiece, increasing the frictional force for limiting the workpiece and reducing damage to the side surface of the workpiece, thus improving the practicality of the device.

[0020] 2. The device is equipped with a positioning slider and a side clamping plate. When the device is working, the drive motor drives the first gear to rotate, which in turn drives the second gears around it and the transmission screw to rotate. This allows the transmission screw to drive the positioning slider and the side clamping plate to slide synchronously through the thread, increasing the uniformity of workpiece positioning by the device.

[0021] 3. The device is equipped with a second toothed plate and an auxiliary pressure plate. When the device is working, the sliding of the linkage slider causes the linkage slider to drive the first toothed plate to mesh with the transmission gear. After the transmission gear rotates, it will mesh with the second toothed plate, causing the second toothed plate to drive the auxiliary pressure plate to slide down. The auxiliary pressure plate presses against the upper surface of the workpiece, and the spring makes the auxiliary pressure plate fit tightly, which further increases the stability of the workpiece during processing. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the fixed support frame and the supporting base frame of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the drive motor and the first gear of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the connection between the second gear and the transmission screw of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the side clamp and the piston column of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the linkage slider and the first toothed plate of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the first toothed plate and the transmission gear of this utility model.

[0028] In the diagram: 1. Fixed support frame; 2. Supporting base frame; 3. Drive motor; 4. First gear; 5. Second gear; 6. Transmission screw; 7. Positioning slider; 8. Side clamping plate; 9. Linkage slider; 10. Piston column; 11. Fitting airbag; 12. First toothed plate; 13. Transmission gear; 14. Second toothed plate; 15. Auxiliary pressure plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a limiting frame for opening a cutter head with an edge-wrapping structure, including a fixed support frame 1, a supporting base frame 2, a drive motor 3, a first gear 4, a second gear 5, a transmission screw 6, a positioning slider 7, a side clamping plate 8, a linkage slider 9, a piston column 10, a fitting airbag 11, a first toothed plate 12, a transmission gear 13, a second toothed plate 14, and an auxiliary pressure plate 15. The fixed support frame 1 has the supporting base frame 2 fixedly connected to its lower end, and the drive motor 3 is fixedly connected to the upper surface of the supporting base frame 2. The gear 5 is distributed around the center of the first gear 4. The second gear 5 is rotatably connected to the fixed support frame 1. The second gear 5 and the first gear 4 are meshed together. When using this device, the workpiece is first placed on the upper surface of the fixed support frame 1. The first gear 4 is driven to rotate by the drive motor 3, which in turn drives the surrounding second gear 5 and the transmission screw 6 to rotate. The transmission screw 6 drives the positioning slider 7 and the side clamp 8 to slide horizontally through the thread. The piston column 10 on the surface of the side clamp 8 drives the linkage slider 9 to move synchronously.

[0031] A first gear 4 is fixedly connected to the output end of the drive motor 3. A second gear 5 is mounted on the lower surface of the fixed support frame 1. A transmission screw 6 is fixedly connected to one end of the shaft of the second gear 5. A positioning slider 7 is mounted on the outer surface of the transmission screw 6, penetrating the surface of the fixed support frame 1. A side clamp 8 is fixed to the upper surface of the positioning slider 7. The transmission screw 6 and the fixed support frame 1 are rotatably connected. The transmission screw 6 and the positioning slider 7 are threadedly connected. The positioning slider 7 and the fixed support frame 1 are slidably connected. The side clamp 8 has an arc-shaped design and is linked. The slider 9 has an arc-shaped design. The linkage slider 9 and the piston column 10 form a sliding connection. The cavity of the fitting airbag 11 is connected to the piston column 10. The fitting airbag 11 on the surface of the linkage slider 9 is pressed against the side surface of the workpiece. With the continuous movement of the side clamp 8, the linkage slider 9 can move relative to the piston column 10. The piston column 10 compresses the air in the cavity of the linkage slider 9, which facilitates the linkage slider 9 to introduce the air into the fitting airbag 11. This allows the fitting airbag 11 to expand and fit against the surface of the workpiece, increasing the friction on the workpiece and reducing damage to the workpiece surface.

[0032] Two piston pins 10 are fixedly connected to the side surface of the lateral clamping plate 8. A linkage slider 9 is installed on the outer surface of one end of the piston pin 10. A fitting airbag 11 is fixed on the side surface of the linkage slider 9. The linkage pressing mechanism includes a first toothed plate 12, which is fixedly connected to the side surface of the linkage slider 9. A transmission gear 13 is rotatably arranged on the side surface of the lateral clamping plate 8. A second toothed plate 14 is installed on the upper surface of the lateral clamping plate 8. An auxiliary pressure plate 15 is arranged on the lower surface of one end of the second toothed plate 14. When the linkage slider 9 is pressed against the piston pin 10 by the workpiece and slides, the linkage slider 9 drives the first toothed plate 12 to move horizontally. The first toothed plate 12 drives the transmission gear 13 to rotate through the tooth block.

[0033] A linkage pressing mechanism is provided between the side clamping plate 8 and the linkage slider 9. The mechanism drives the transmission gear 13 to rotate via the first toothed plate 12, causing the second toothed plate 14 to drive the auxiliary pressure plate 15 to press down and limit the position. One end of the first toothed plate 12 penetrates the surface of the side clamping plate 8. The lower surface of the first toothed plate 12 is provided with tooth blocks, and the first toothed plate 12 is meshed with the transmission gear 13 through the tooth blocks. The second toothed plate 14 is L-shaped, and a spring is connected between the second toothed plate 14 and the side clamping plate 8. One side surface of the second toothed plate 14 is provided with tooth blocks, and the second toothed plate 14 is meshed with the transmission gear 13 through the tooth blocks. The second toothed plate 14 is slidably connected to the auxiliary pressure plate 15, and a spring is connected between the second toothed plate 14 and the auxiliary pressure plate 15. After the transmission gear 13 rotates, it drives the second toothed plate 14 to slide down. While the second toothed plate 14 moves, it drives the auxiliary pressure plate 15 to descend and press against the upper surface of the workpiece. The auxiliary pressure plate 15 is in contact with the workpiece through the spring at its upper end, which increases the stability of the workpiece limiting of this device.

[0034] Working principle: When using the cutter head opening limit frame with edge wrapping structure, the workpiece is placed through the fixed support frame 1. Then, the drive motor 3 on the surface of the base frame 2 drives the first gear 4 to rotate. The first gear 4 drives the second gear 5 and the transmission screw 6 to rotate, so that the transmission screw 6 drives the positioning slider 7 and the side clamping plate 8 to slide. The contact airbag 11 on the surface of the linkage slider 9 abuts against the workpiece, which facilitates the sliding of the linkage slider 9 relative to the piston column 10. The piston column 10 pushes air into the contact airbag 11 for expansion and contact. The linkage slider 9 drives the first toothed plate 12 to move and mesh with the transmission gear 13. The transmission gear 13 drives the second toothed plate 14 to slide down, which facilitates the second toothed plate 14 to drive the auxiliary pressure plate 15 to descend and press the upper surface of the workpiece, increasing the overall practicality.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limiting frame for cutter disc opening with edge wrapping structure, comprising a fixed support frame (1), the lower end of which is fixedly connected with a supporting bottom frame (2), characterized in that: The upper surface of the supporting chassis (2) is fixedly connected with a driving motor (3), the output end of the driving motor (3) is fixedly connected with a first gear (4), the lower surface of the fixed support frame (1) is provided with a second gear (5), one end of the rotating shaft of the second gear (5) is fixedly connected with a transmission screw rod (6), the outer surface of the transmission screw rod (6) is provided with a positioning sliding block (7), the positioning sliding block (7) penetrates the surface of the fixed support frame (1), and the upper surface of the positioning sliding block (7) is fixedly provided with a lateral clamping plate (8), the lateral surface of the lateral clamping plate (8) is fixedly connected with two piston columns (10), the outer surface of one end of the piston column (10) is provided with a linkage sliding block (9), the lateral surface of the linkage sliding block (9) is fixedly provided with a matching air bag (11), and a linkage pressing mechanism is arranged between the lateral clamping plate (8) and the linkage sliding block (9), which drives the transmission gear (13) to rotate through the first toothed plate (12) so that the second toothed plate (14) drives the auxiliary pressing plate (15) to press down.

2. The limit frame for cutter disc hole with edge wrapping structure according to claim 1, characterized in that: The second gear (5) is circumferentially distributed about the center of the first gear (4), the second gear (5) is rotatably connected with the fixed support frame (1), and the second gear (5) is meshingly connected with the first gear (4).

3. The limit frame for cutter disc hole with edge wrapping structure according to claim 1, characterized in that: The transmission screw rod (6) is rotatably connected with the fixed support frame (1), the transmission screw rod (6) is threadedly connected with the positioning sliding block (7), and the positioning sliding block (7) is slidably connected with the fixed support frame (1).

4. The limit frame for cutter head opening with edge wrapping structure according to claim 1, characterized in that: The lateral clamping plate (8) is arc-shaped, the linkage sliding block (9) is arc-shaped, the linkage sliding block (9) is slidably connected with the piston column (10), and the cavity of the matching air bag (11) is in communication with the piston column (10).

5. The limit frame for cutter head bore according to claim 1, characterized in that: The linkage pressing mechanism comprises a first toothed plate (12) fixedly connected to the lateral surface of the linkage sliding block (9), a transmission gear (13) rotatably arranged on the lateral surface of the lateral clamping plate (8), a second toothed plate (14) mounted on the upper surface of the lateral clamping plate (8), and an auxiliary pressing plate (15) arranged at one end of the lower surface of the second toothed plate (14).

6. The limit frame for cutter head bore according to claim 5, characterized in that: One end of the first toothed plate (12) penetrates the surface of the lateral clamping plate (8), the lower surface of the first toothed plate (12) is provided with a tooth block, and the first toothed plate (12) is meshingly connected with the transmission gear (13) through the tooth block.

7. The limit frame for cutter head bore according to claim 5, characterized in that: The second toothed plate (14) is L-shaped, springs are connected between the second toothed plate (14) and the lateral clamping plate (8), a tooth block is arranged at one end of the lateral surface of the second toothed plate (14), the second toothed plate (14) is meshingly connected with the transmission gear (13) through the tooth block, the second toothed plate (14) is slidably connected with the auxiliary pressing plate (15), and springs are connected between the second toothed plate (14) and the auxiliary pressing plate (15).

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