Servo adjustable cutter for brake disc machining
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a servo adjustable cutter for machining a brake disc.
Background
Along with the development of China manufacturing 2025, the mechanical processing industry is developing towards automation, integration and intellectualization, and a large number of robots in the mechanical processing field are put into use, so that the demand of servo adjustable cutters is greatly increased. The traditional brake disc machining cutters are special cutters, one cutter can only finish one process for machining the brake disc, and cannot finish the machining of a plurality of processes, so that the machining of different brake discs can only be finished by increasing the number of cutters; the variety of the cutters is various, the auxiliary time for replacing the cutters is long, and the processing time is prolonged; the processing efficiency is low and the cost is high.
Therefore, it is necessary to develop a servo adjustable cutter for processing the brake disc, which can meet a plurality of processing technologies for processing the brake disc with different specifications, improve the production efficiency and reduce the processing cost.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the servo adjustable cutter for processing the brake disc, which can be suitable for processing parts of the brake disc with different specifications and different sizes, has a simple structure and reliable performance, can meet the processing requirements of the brake discs with various specifications, improves the production efficiency and reduces the processing cost.
In order to achieve the above purpose, the invention adopts the following technical scheme: a servo adjustable cutter for brake disc processing is characterized in that: the automatic cutting machine comprises a cutter holder body, an upper end surface cutter holder, a lower end surface cutter holder, a movable driving mechanism for driving the lower end surface cutter holder to move up and down, and a compressing limiting mechanism which is arranged on the cutter holder body and used for compressing and limiting the lower end surface cutter holder, wherein the upper end surface cutter holder is fixedly arranged at the bottom of the cutter holder body, an installation groove is formed in the cutter holder body, the upper part of the lower end surface cutter holder is arranged in the installation groove and can move up and down in the installation groove, the lower part of the lower end surface cutter holder is positioned outside the installation groove, an upper turning tool is arranged on the upper end surface cutter holder, a lower turning tool is arranged at the lower part of the lower end surface cutter holder, and the upper turning tool is positioned above the lower turning tool; the movable driving mechanism comprises a servo motor, a motor seat, a screw rod nut and a bearing seat, wherein the motor seat is arranged at the top of the bearing seat, the servo motor is arranged in the motor seat, an output shaft of the servo motor is connected with the upper end of the screw rod through a coupler, the lower end of the screw rod penetrates through the bearing seat and then stretches into a vertical groove arranged on a lower end face tool apron, the screw rod nut is in threaded fit with the screw rod, the screw rod nut is fixed at the upper end of the lower end face tool apron, the screw rod nut is positioned below the bearing seat, a self-lubricating bearing is arranged between the bearing seat and the screw rod, and the bearing seat is arranged at the top of the tool apron body.
The servo adjustable cutter for processing the brake disc is characterized in that: the mounting groove is a straight groove which is vertically distributed, the left side surface of the upper part of the lower end face cutter holder is a straight surface, and the right side surface of the upper part of the lower end face cutter holder is an inclined surface with a small upper part and a big lower part.
The servo adjustable cutter for processing the brake disc is characterized in that: the compressing limiting mechanism comprises a compressing block and a spring resetting hydraulic cylinder, wherein the end part of a piston rod of the spring resetting hydraulic cylinder is fixedly connected with the upper part of the compressing block, the right side surface of the compressing block is a straight surface, the left side surface of the compressing block is an inclined surface with a large upper part and a small lower part, the left side surface of the compressing block is matched with the right side surface of the upper part of a lower end surface tool apron by a wedge surface, the compressing block is positioned in an installation groove, and the spring resetting hydraulic cylinder is vertically installed on the right side of the tool apron body.
The servo adjustable cutter for processing the brake disc is characterized in that: the screw rod is sleeved with an anti-backlash spring, the upper end of the anti-backlash spring is propped against the lower end face of a pillow block arranged on the screw rod, and the lower end of the anti-backlash spring is propped against a screw rod nut.
The servo adjustable cutter for processing the brake disc is characterized in that: the lower end of the screw rod is provided with a first inner hexagonal cylindrical head screw, and a retainer ring, a first flat washer and a first spring washer are sequentially arranged between the head of the first inner hexagonal cylindrical head screw and the lower end face of the screw rod from top to bottom.
The servo adjustable cutter for processing the brake disc is characterized in that: the motor base is fixedly arranged at the top of the bearing base through a second inner hexagonal socket head cap screw, and a second spring washer and a second flat washer are sequentially arranged between the head of the second inner hexagonal socket head cap screw and the motor base from top to bottom.
The servo adjustable cutter for processing the brake disc is characterized in that: the upper end face cutter seat is fixedly arranged at the bottom of the cutter seat body through a third inner hexagonal socket head screw, the upper turning tool is fixedly arranged on the upper end face cutter seat through a fourth inner hexagonal socket head screw, and the lower turning tool is fixedly arranged at the lower part of the lower end face cutter seat through a fifth inner hexagonal socket head screw.
The servo adjustable cutter for processing the brake disc is characterized in that: the screw rod is connected with a locking nut in a threaded manner, and the lower end face of the locking nut is contacted with the upper end face of the self-lubricating bearing.
The servo adjustable cutter for processing the brake disc is characterized in that: the bearing seat is fixedly arranged at the top of the tool apron body through a sixth inner hexagonal cylindrical head screw, and the self-lubricating bearing is arranged on the bearing seat through a seventh inner hexagonal cylindrical head screw.
The servo adjustable cutter for processing the brake disc is characterized in that: the self-lubricating bearing is a JFB flanging self-lubricating bearing.
Compared with the prior art, the invention has the following advantages:
1. the invention has simple structure, novel and reasonable design and convenient use and operation.
2. According to the invention, the distance between the upper end face tool apron and the lower end face tool apron is adjusted, so that the distance between the upper turning tool and the lower turning tool is adjusted, the adjusting range can adapt to clamping processing of brake disc parts with different specifications and different sizes, the same clamp can meet clamping requirements of different working procedures of the parts with different brake disc sections, the number of tools during processing the parts can be greatly reduced, the processing efficiency is improved, and the processing cost is saved.
3. When the distance between the upper turning tool and the lower turning tool is adjusted, the upper end face tool apron and the upper turning tool are not moved, and only the lower end face tool apron and the lower turning tool are moved, so that the adjustment is convenient; and the adjustment of the lower end face tool apron and the lower turning tool is adjusted in a lead screw nut matching mode, so that the adjustment precision is high.
4. The lower end face tool apron is positioned by the wedge-shaped structure formed by matching the inclined surface structure on the right side of the pressing block and the inclined surface structure on the left side of the lower end face tool apron, so that the lower end face tool apron is convenient to lock, the locking positioning precision is high, and the distance between the upper turning tool and the lower turning tool is not easy to change.
5. According to the invention, the screw rod is sleeved with the gap eliminating spring, the upper end of the gap eliminating spring is propped against the lower end face of the pillow block arranged on the screw rod, and the lower end of the gap eliminating spring is propped against the screw rod nut, so that the screw rod can be locked by the nut to be fixed, the screw rod is prevented from moving up and down, and the machining precision of a cutter is improved.
6. The invention has the advantages of exquisite structural design, reliable performance, simple and convenient manufacture and low manufacturing cost.
The invention is described in further detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged view at a of fig. 1.
Fig. 3 is an enlarged view at B of fig. 1.
Fig. 4 is a perspective view of the present invention.
Fig. 5 is a top view of the present invention.
Reference numerals illustrate:
1-a tool apron body; 1-1, an installation groove; 2-a lower end face tool apron;
2-1-vertical slots; 3-an upper end face tool apron; 4-bearing seats;
5-self-lubricating bearings; 6-a screw rod; 6-1, a pillow block;
7-a lead screw nut; 8-a motor base; 9-an anti-backlash spring;
10-a compacting block; 11-a coupling; 12-a servo motor;
13-a lock nut; 14-a spring return hydraulic cylinder; 15, turning down the tool;
16-turning tool; 17-fifth hexagon socket head cap screw;
18-third hexagon socket head cap screw; 19-a second hexagon socket head cap screw;
20-sixth hexagon socket head cap screw; 21-a first hexagon socket cap screw;
22-seventh hexagon socket head cap screw; 23-a first flat washer; 24—a first spring washer;
25-a second flat washer; 26-a second spring washer; 27-a retainer ring;
28-fourth hexagon socket head cap screw.
Detailed Description
As shown in fig. 1 to 5, the invention comprises a cutter holder body 1, an upper end surface cutter holder 3, a lower end surface cutter holder 2, a moving driving mechanism for driving the lower end surface cutter holder 2 to move up and down, and a compressing limiting mechanism which is arranged on the cutter holder body 1 and is used for compressing and limiting the lower end surface cutter holder 2, wherein the upper end surface cutter holder 3 is fixedly arranged at the bottom of the cutter holder body 1, a mounting groove 1-1 is arranged in the cutter holder body 1, the upper part of the lower end surface cutter holder 2 is arranged in the mounting groove 1-1 and can move up and down in the mounting groove 1-1, the lower part of the lower end surface cutter holder 2 is arranged outside the mounting groove 1-1, an upper turning tool 16 is arranged on the upper end surface cutter holder 3, a lower turning tool 15 is arranged at the lower part of the lower end surface cutter holder 2, and the upper turning tool 16 is positioned above the lower turning tool 15; the movable driving mechanism comprises a servo motor 12, a motor seat 8, a screw rod 6, a screw rod nut 7 and a bearing seat 4, wherein the motor seat 8 is arranged at the top of the bearing seat 4, the servo motor 12 is arranged in the motor seat 8, an output shaft of the servo motor 12 is connected with the upper end of the screw rod 6 through a coupler 11, the lower end of the screw rod 6 penetrates through the bearing seat 4 and then stretches into a vertical groove 2-1 arranged on the lower end face tool apron 2, the screw rod nut 7 is in threaded fit with the screw rod 6, the screw rod nut 7 is fixed at the upper end of the lower end face tool apron 2, the screw rod nut 7 is arranged below the bearing seat 4, a self-lubricating bearing 5 is arranged between the bearing seat 4 and the screw rod 6, and the bearing seat 4 is arranged at the top of the tool apron body 1.
As shown in fig. 1, the mounting groove 1-1 is a straight groove vertically arranged, the left side surface of the upper part of the lower end surface cutter holder 2 is a straight surface, and the right side surface of the upper part of the lower end surface cutter holder 2 is an inclined surface with a small upper part and a large lower part.
As shown in fig. 1, the compressing and limiting mechanism comprises a compressing block 10 and a spring restoring hydraulic cylinder 14, the end part of a piston rod of the spring restoring hydraulic cylinder 14 is fixedly connected with the upper part of the compressing block 10, the right side surface of the compressing block 10 is a straight surface, the left side surface of the compressing block 10 is an inclined surface with a large upper part and a small lower part, a wedge-shaped surface is matched between the left side surface of the compressing block 10 and the right side surface of the upper part of the lower end surface tool apron 2, the compressing block 10 is positioned in an installation groove 1-1, and the spring restoring hydraulic cylinder 14 is vertically installed on the right side of the tool apron body 1.
As shown in fig. 1, the screw rod 6 is sleeved with an anti-backlash spring 9, the upper end of the anti-backlash spring 9 is propped against the lower end face of a pillow block 6-1 arranged on the screw rod 6, and the lower end of the anti-backlash spring 9 is propped against the screw rod nut 7. The function of the anti-backlash spring 9 is to increase the accuracy of the tool movement by the clearance between the screw rod 6 and the screw nut 7.
As shown in fig. 1, a first hexagon socket head cap screw 21 is arranged at the lower end of the screw rod 6, and a retainer ring 27, a first flat washer 23 and a first spring washer 24 are sequentially arranged between the head of the first hexagon socket head cap screw 21 and the lower end surface of the screw rod 6 from top to bottom. The first hexagon socket head cap screw 21, the retainer ring 27, the first flat washer 23 and the first spring washer 24 are used for buffering and limiting the screw nut 7 so as to prevent the screw rod 6 from falling off.
As shown in fig. 1, the motor base 8 is fixedly mounted on the top of the bearing base 4 through a second hexagon socket head cap screw 19, and a second spring washer 26 and a second flat washer 25 are sequentially arranged between the head of the second hexagon socket head cap screw 19 and the motor base 8 from top to bottom.
Specifically, the first flat washer 23 and the second flat washer 25 are both flat washer-C stages, and the first spring washer 24 and the second spring washer 26 are both standard spring washers.
As shown in fig. 1, the upper end surface tool holder 3 is fixedly mounted at the bottom of the tool holder body 1 through a third hexagon socket head cap screw 18, the upper turning tool 16 is fixedly mounted on the upper end surface tool holder 3 through a fourth hexagon socket head cap screw 28, and the lower turning tool 15 is fixedly mounted at the lower part of the lower end surface tool holder 2 through a fifth hexagon socket head cap screw 17.
As shown in fig. 1, the screw rod 6 is connected with a lock nut 13 in a threaded manner, the lower end surface of the lock nut 13 is in contact with the upper end surface of the self-lubricating bearing 5, and the lock nut 13 fixes the screw rod 6 to prevent the screw rod 6 from moving up and down.
As shown in fig. 1, the bearing seat 4 is fixedly mounted on the top of the tool holder body 1 through a sixth hexagon socket head cap screw 20, and the self-lubricating bearing 5 is mounted on the bearing seat 4 through a seventh hexagon socket head cap screw 22.
In this embodiment, the self-lubricating bearing 5 is a JFB flanging self-lubricating bearing.
The servo adjustable cutter for processing the brake disc can adjust the clamping height of the brake disc, and the working principle is as follows: the upper end face tool apron 3 and the upper turning tool 16 do not move. The servo motor 12 is started to drive the screw rod 6 to rotate, the screw rod 6 drives the screw rod nut 7 to move up and down, and because the screw rod nut 7 is fixed at the upper end of the lower end face tool apron 2, the lower end face tool apron 2 also moves up and down under the drive of the screw rod nut 7, and then the lower end face tool apron 2 drives the lower turning tool 15 to move up and down so as to realize the adjustment of the distance between the lower turning tool 15 and the upper turning tool 16, namely the adjustment of the clamping height of the brake disc. When the lower end face tool apron 2 is adjusted to a proper position, the lower end face tool apron 2 is pressed and positioned through a pressing limiting mechanism formed by the pressing block 10 on the right side and the spring return hydraulic cylinder 14, namely, the movement of the pressing block 10 is controlled through adjusting the spring body of the spring return hydraulic cylinder 14.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural transformation of the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.