High-low position synchronous grinding equipment for brake drum

Abstract

The utility model discloses high-low position synchronous grinding equipment for a brake drum, and relates to the technical field of automobile part machining. The brake drum polishing device is used for polishing a brake drum body, a chuck is arranged on the lower side of the brake drum body, a polishing motor is arranged over the brake drum body, a center polishing main shaft is fixed to a power output shaft of the polishing motor, and a center polishing head is fixed to the bottom of the center polishing main shaft. The left side of the mounting plate is rotationally connected with a side grinding spindle through a bearing, a side grinding head is fixed to the lower end of the side grinding spindle, and a driven gear and a driving gear are correspondingly fixed to the upper ends of the side grinding spindle and the center grinding spindle correspondingly. A mounting box is fixed to the rear wall of the U-shaped frame, a fan is fixed to the rear wall of the mounting box, and a dust filtering plate is arranged in the mounting box. A plurality of ports in brake drum bodies with different heights are polished through the center polishing head and the side polishing heads with different heights, dust is collected through cooperation of the fan and the dust filtering plate, and the dust is prevented from being diffused to the external environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts processing, in particular to a high and low position synchronous grinding device for a brake drum. Background Art

[0002] Drum brakes are a type of brake device that utilizes the stationary brake pads in the brake drum to rub against the brake drum that rotates with the wheel to generate friction and reduce the wheel's rotation speed. Drum brakes have good feasibility and strong braking force, making the drum brake system particularly suitable for braking heavy vehicles. Drum brakes are composed of brake base plates, brake cylinders, brake shoes, and other related connecting rods, springs, pins, and brake drums. During actual production and processing of brake drums, grinding equipment is required to be used to grind multiple ports on their surface.

[0003] However, the existing technology has the following shortcomings:

[0004] 1. Since the heights of the multiple ports of the brake drum are not at the same level, the prior art usually grinds the multiple ports in sequence, which reduces production efficiency;

[0005] 2. The existing technology generates a lot of dust when grinding the brake drum port, which not only harms the health of personnel, but also pollutes the processing environment. Utility Model Content

[0006] The problem to be solved by the utility model is to provide a high and low position synchronous grinding device for a brake drum, which improves production efficiency, is convenient for grinding and has the effect of preventing dust diffusion.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a high-low position synchronous grinding device for a brake drum, which is used for grinding a brake drum body. A chuck is arranged on the lower side of the brake drum body, a grinding motor is arranged directly above the brake drum body, a U-shaped frame is fixed to the upper wall of the grinding motor, a mounting plate is fixed to the lower wall of the grinding motor, a center grinding spindle is fixed to the power output shaft of the grinding motor, a center grinding head is fixed to the bottom of the center grinding spindle, a side grinding spindle is rotatably connected to the left side of the mounting plate through a bearing, a side grinding head is fixed to the lower end of the side grinding spindle, a driven gear and a driving gear are fixed to the upper ends of the side grinding spindle and the center grinding spindle, and the driven gear and the driving gear are meshingly connected;

[0009] A mounting box is fixed to the rear wall of the U-shaped frame, a fan is fixed to the rear wall of the mounting box, and a dust filter plate is arranged inside the mounting box.

[0010] Furthermore, a movable plate is provided on the lower wall of the chuck, and the chuck is rotatably connected to the movable plate. A workpiece rotating motor and a workpiece moving electric push rod are sequentially provided below the movable plate. The lower end of the workpiece moving electric push rod is fixed on the U-shaped frame, the workpiece rotating motor is fixedly connected to the upper end of the workpiece moving electric push rod, and the power output shaft of the grinding motor is fixedly connected to the chuck.

[0011] Furthermore, guide rods are fixed on both left and right sides of the mounting plate, guide sleeves are fixed on the U-shaped frames corresponding to the outsides of the guide rods, and the guide rods and the guide sleeves are clearance-matched.

[0012] Furthermore, a wrench electric push rod is fixed on the U-shaped frame corresponding to the rear of the chuck, a wrench motor is fixed on the front end of the wrench electric push rod, a square block is fixed on the power output shaft of the wrench motor, and the square block is adapted to the wrench square hole in the chuck.

[0013] Furthermore, reinforcing plates are fixed at the four corner positions on the inner side of the U-shaped frame, and the reinforcing plates are arranged in a triangular shape.

[0014] Furthermore, a collecting cover is fixed to the inner side wall of the U-shaped frame in front of the installation box, and the front end of the collecting cover is higher than the rear end of the collecting cover, and the interior of the collecting cover is communicated with the interior of the installation box.

[0015] Furthermore, a dust collecting box is fixed to the lower wall of the installation box, and the interior of the dust collecting box is communicated with the interior of the installation box, and a horizontal plate is fixed to the lower wall of the dust collecting box.

[0016] Furthermore, a limit strip is fixed in front of the dust filter plate corresponding to the inner wall of the installation box, a through hole is opened on the rear wall of the installation box, and a side plate is fixed on the front wall of the installation box.

[0017] The utility model has the following beneficial effects:

[0018] The utility model arranges a center grinding head, a side grinding head, a driving gear, a driven gear and a grinding motor. When a brake drum body is fixed by a chuck, the grinding motor drives the center grinding spindle to rotate. With the cooperation of the driving gear and the driven gear, the grinding block one and the grinding block two are rotated. At the same time, the workpiece rotating motor drives the chuck to rotate, so that the brake drum body rotates, and the grinding block one and the grinding block two can synchronously grind the high and low ports, making it more convenient to grind the ports of the brake drum body at different heights, thereby improving production efficiency.

[0019] The utility model provides a fan and a dust filter plate. When grinding, the fan works to put the collection cover in a negative pressure state. The dust passes through the collection cover and enters the interior of the installation box. The dust filter plate filters the dust to prevent the dust from diffusing to the external environment, and avoids the generation of a large amount of dust during grinding. The processing and production environment is improved, which is beneficial to the health of production personnel and solves the problem of environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall structural diagram of a high and low position synchronous grinding equipment for brake drums;

[0021] Figure 2 It is a vertical cross-sectional structural diagram of a high and low position synchronous grinding device for a brake drum;

[0022] Figure 3 It is a left-side structural diagram of a high and low position synchronous grinding device for brake drums;

[0023] Figure 4 The right side structural diagram of a high and low position synchronous grinding equipment for brake drums.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Mounting plate; 101. Center grinding spindle; 1011. Driving gear; 1012. Center grinding head; 102. Side grinding spindle; 1021. Driven gear; 1022. Side grinding head; 2. Brake drum body; 3. Chuck; 301. Moving plate; 3011. Guide rod; 4. Wrench electric push rod; 401. Wrench motor; 4011. Square block; 5. U-shaped frame; 501. Grinding motor; 502. Reinforcement plate; 503. Collecting cover; 504. Workpiece moving electric push rod; 5041. Workpiece rotating motor; 505. Guide sleeve; 6. Mounting box; 601. Dust collection box; 6011. Horizontal plate; 602. Fan; 603. Perforation; 604. Dust filter plate; 605. Limit strip; 606. Side plate. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention and the accompanying drawings of the specification.

[0027] See also Figures 1 to 3 As shown, the utility model is a high and low position synchronous grinding device for a brake drum, which is used to grind a brake drum body 2. The ports of the brake drum body 2 are distributed as follows: Figure 1The height of the middle port is higher than the height of the ports arranged in a circular array along the middle port. A chuck 3 is arranged on the lower side of the brake drum body 2. The brake drum body 2 is fixed by the claws on the chuck 3. A grinding motor 501 is arranged directly above the brake drum body 2. A U-shaped frame 5 is fixed to the upper wall of the grinding motor 501. A mounting plate 1 is fixed to the lower wall of the grinding motor 501. A central grinding spindle 101 is fixed to the power output shaft of the grinding motor 501. A central grinding spindle 101 is fixed to the bottom of the central grinding spindle 101. The center grinding head 1012, the left side of the mounting plate 1 is rotatably connected with the side grinding spindle 102 through the bearing, the lower end of the side grinding spindle 102 is fixed with the side grinding head 1022, the center grinding head 1012 and the side grinding head 1022 are both detachable, so as to facilitate their replacement after wear, the upper ends of the side grinding spindle 102 and the center grinding spindle 101 are respectively fixed with a driven gear 1021 and a driving gear 1011, and the driven gear 1021 and the driving gear 1011 are meshingly connected;

[0028] According to the above arrangement, when in use, the brake drum body 2 is operated to be placed on the chuck 3, and the wrench motor 401 is operated to drive the square block 4011 to rotate so that the claws on the chuck 3 lock the brake drum body 2. At this time, the wrench electric push rod 4 is retracted to drive the square block 4011 to disengage from the chuck 3, and then the grinding motor 501 is operated to drive the center grinding spindle 101 to rotate so that the center grinding head 1012 is rotated. At the same time, under the action of the driving gear 1011 and the driven gear 1021, the side grinding spindle 102 rotates to drive the side grinding head 1022 to rotate, and then the workpiece moving electric push rod 504 is extended to drive the brake drum body 2 to move upward, so that the center grinding head 1012 and the side grinding head 1022 in the rotating state are in contact with the corresponding positions of the brake drum body 2 for grinding. During grinding, the workpiece rotating motor 5041 works to drive the brake drum body 2 to rotate, so that multiple ports can be ground;

[0029] A movable plate 301 is provided on the lower wall of the chuck 3, and the chuck 3 is rotatably connected to the movable plate 301. A workpiece rotating motor 5041 and a workpiece moving electric push rod 504 are sequentially provided below the movable plate 301. The lower end of the workpiece moving electric push rod 504 is fixedly arranged on the U-shaped frame 5. The workpiece rotating motor 5041 is fixedly connected to the upper end of the workpiece moving electric push rod 504. The power output shaft of the grinding motor 501 is fixedly connected to the chuck 3. With the above arrangement, the workpiece moving electric push rod 504 drives the workpiece rotating motor 5041 to move, so that the movable plate 301 and the chuck 3 move, thereby driving the brake drum body 2 to move. When the workpiece rotating motor 5041 works, the chuck 3 rotates, thereby rotating the brake drum body 2.

[0030] Guide rods 3011 are fixed on both sides of the movable plate 301, and guide sleeves 505 are fixed on the U-shaped frame 5 corresponding to the outside of the guide rods 3011, and the guide rods 3011 and the guide sleeves 505 are matched with each other. The above arrangement allows the movable plate 301 to only move vertically up and down through the cooperation between the guide rods 3011 and the guide sleeves 505, thereby improving the stability of the movable plate 301;

[0031] A wrench electric push rod 4 is fixed on the U-shaped frame 5 corresponding to the rear of the chuck 3, a wrench motor 401 is fixed on the front end of the wrench electric push rod 4, a square block 4011 is fixed on the power output shaft of the wrench motor 401, and the square block 4011 is adapted to the wrench square hole in the chuck 3. The above arrangement drives the wrench motor 401 to move through the operation of the wrench electric push rod 4, so that the square block 4011 is plugged into or out of the wrench square hole on the chuck 3, and the brake drum body 2 can be clamped without manual operation through the operation of the wrench motor 401;

[0032] Reinforcement plates 502 are fixed at the four corner positions on the inner side of the U-shaped frame 5 , and the reinforcement plates 502 are arranged in a triangular shape. The structural stability of the U-shaped frame 5 can be improved by the reinforcement plates 502 .

[0033] See also Figure 1 , 2 As shown in FIG. 4 , a mounting box 6 is fixed to the rear wall of the U-shaped frame 5 , a fan 602 is fixed to the rear wall of the mounting box 6 , and a dust filter plate 604 is provided inside the mounting box 6 ;

[0034] The above arrangement generates negative pressure in the collecting cover 503 through the operation of the fan 602, so that the dust is sucked into the installation box 6, and the dust is collected under the filtering effect of the dust filter plate 604.

[0035] A collecting cover 503 is fixed to the inner side wall of the U-shaped frame 5 in front of the installation box 6, and the front end of the collecting cover 503 is higher than the rear end of the collecting cover 503, so that dust can enter the installation box 6. The interior of the collecting cover 503 is connected to the interior of the installation box 6.

[0036] A dust box 601 is fixed to the lower wall of the installation box 6, and the interior of the dust box 601 is communicated with the interior of the installation box 6. A horizontal plate 6011 is fixed to the lower wall of the dust box 601. With the above arrangement, as the dust collection time increases, the dust will fall into the dust box 601, and the dust in the dust box 601 can be cleaned by removing the horizontal plate 6011.

[0037] A limit strip 605 is fixed to the inner wall of the installation box 6 in front of the dust filter plate 604, which is used to limit the dust filter plate 604. A through hole 603 is opened on the rear wall of the installation box 6. The through hole 603 allows a negative pressure state to be present in the collection cover 503 when the fan 602 is working. A side panel 606 is fixed to the front wall of the installation box 6. The dust filter plate 604 can be replaced by removing the side panel 606.

[0038] In addition, the electrical appliances in the high and low position synchronous grinding equipment of the brake drum are all electrically connected to the external power supply through conductive wires, and the electrical appliances in the high and low position synchronous grinding equipment of the brake drum are all existing technologies, and their models are not limited here.

[0039] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A high and low position synchronous grinding device for a brake drum, used for grinding a brake drum body (2), characterized in that: A chuck (3) is provided on the lower side of the brake drum body (2); a grinding motor (501) is provided directly above the brake drum body (2); a U-shaped frame (5) is fixed to the upper wall of the grinding motor (501); a mounting plate (1) is fixed to the lower wall of the grinding motor (501); a central grinding spindle (101) is fixed to the power output shaft of the grinding motor (501); and a central grinding head is fixed to the bottom of the central grinding spindle (101). (1012), the left side of the mounting plate (1) is rotatably connected to a side grinding spindle (102) via a bearing, a side grinding head (1022) is fixed to the lower end of the side grinding spindle (102), a driven gear (1021) and a driving gear (1011) are respectively fixed to the upper ends of the side grinding spindle (102) and the center grinding spindle (101), and the driven gear (1021) and the driving gear (1011) are meshingly connected; A mounting box (6) is fixed to the rear wall of the U-shaped frame (5), a fan (602) is fixed to the rear wall of the mounting box (6), and a dust filter plate (604) is arranged inside the mounting box (6).

2. The high and low position synchronous grinding equipment for brake drums according to claim 1, characterized in that: A movable plate (301) is provided on the lower wall of the chuck (3), and the chuck (3) is rotatably connected to the movable plate (301). A workpiece rotating motor (5041) and a workpiece moving electric push rod (504) are sequentially provided below the moving plate (301), the lower end of the workpiece moving electric push rod (504) being fixedly mounted on the U-shaped frame (5), the workpiece rotating motor (5041) being fixedly connected to the upper end of the workpiece moving electric push rod (504), and the power output shaft of the grinding motor (501) being fixedly connected to the chuck (3).

3. The high and low position synchronous grinding equipment for brake drums according to claim 2, characterized in that: Guide rods (3011) are fixed on both left and right sides of the mounting plate (1), and guide sleeves (505) are fixed on the U-shaped frame (5) corresponding to the outside of the guide rods (3011), and the guide rods (3011) and the guide sleeves (505) are clearance-matched.

4. The high and low position synchronous grinding equipment for brake drums according to claim 2, characterized in that: A wrench electric push rod (4) is fixed on the U-shaped frame (5) corresponding to the rear of the chuck (3), a wrench motor (401) is fixed on the front end of the wrench electric push rod (4), a square block (4011) is fixed on the power output shaft of the wrench motor (401), and the square block (4011) is matched with the wrench square hole in the chuck (3).

5. The high and low position synchronous grinding equipment for brake drums according to claim 1, characterized in that: Reinforcement plates (502) are fixed at the four corner positions on the inner side of the U-shaped frame (5), and the reinforcement plates (502) are arranged in a triangular shape.

6. The high and low position synchronous grinding equipment for brake drums according to claim 1, characterized in that: A collecting hood (503) is fixed in front of the installation box (6) corresponding to the inner side wall of the U-shaped frame (5), and the front end of the collecting hood (503) is higher than the rear end of the collecting hood (503), and the interior of the collecting hood (503) is in communication with the interior of the installation box (6).

7. The high and low position synchronous grinding equipment for brake drums according to claim 6, characterized in that: A dust collecting box (601) is fixed to the lower wall of the installation box (6), and the interior of the dust collecting box (601) is communicated with the interior of the installation box (6). A horizontal plate (6011) is fixed to the lower wall of the dust collecting box (601).

8. The high and low position synchronous grinding equipment for brake drums according to claim 1, characterized in that: A limit strip (605) is fixed in front of the dust filter plate (604) corresponding to the inner wall of the installation box (6), a through hole (603) is provided on the rear wall of the installation box (6), and a side plate (606) is fixed on the front wall of the installation box (6).

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