Automobile part polishing device

Abstract

The utility model relates to the technical field of polishing devices, in particular to an automobile part polishing device which comprises a machine base, a polishing mechanism and a positioning mechanism which are matched with each other are installed at the two opposite ends of the top of the machine base, the positioning mechanism comprises a three-jaw chuck and a fixing base, and the polishing mechanism comprises a polishing motor which is provided with an installation shaft. An inner cavity of the mounting shaft is connected with a double-end lead screw, the double-end lead screw is in threaded connection with sliding blocks, and four sets of arc-shaped grinding disc assemblies are hinged to the outer walls of the two sliding blocks. The double-end lead screw can be rotated to drive the two sliding blocks to slide in the opposite directions, so that the arc-shaped grinding disc assemblies are driven to slide, the unfolding height of the four sets of arc-shaped grinding disc assemblies is adjusted, the arc-shaped grinding disc assemblies can be tightly attached, the grinding effect is guaranteed, and the grinding assembly can adapt to tubular workpieces with different inner diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a grinding device for automobile parts. Background Art

[0002] There are many kinds of automobile tubular accessories, including air pipes, axles, etc. When processing tubular accessories, the inner wall of the tubular accessories needs to be polished to make the inner wall of the accessory smooth and reduce the generation of friction resistance. When the existing polishing device polishes the inner wall of the tubular with different inner diameters, it is necessary to replace the polishing head with different diameters for polishing. This results in the need to prepare a large number of types of polishing heads in advance, and the replacement process is time-consuming and labor-intensive, which reduces the polishing efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automobile parts grinding device which can grind the inside of tubular workpieces with different inner diameters.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An automobile parts grinding device comprises a machine base, wherein a grinding mechanism and a positioning mechanism that cooperate with each other are installed at opposite ends of the top of the machine base, wherein the positioning mechanism comprises a three-jaw chuck and a fixed seat, and the three-jaw chuck is installed on a side of the fixed seat close to the grinding mechanism;

[0006] The grinding mechanism includes a mounting plate, a grinding motor is installed on one side of the mounting plate, and the output shaft of the grinding motor is coaxially arranged with the three-jaw chuck, the output end of the grinding motor passes through the side wall of the mounting plate and is installed with an internal hollow mounting shaft, a double-headed screw is rotatably connected between the opposite ends of the inner cavity of the mounting shaft, and sliders are symmetrically threaded on the outer walls of the opposite ends of the double-headed screw, four groups of arc-shaped grinding disc assemblies are hinged at equal angles between the outer walls of two of the sliders, and a sliding groove is opened on the side wall of the mounting shaft for the arc-shaped grinding disc assembly to pass through and slide.

[0007] Furthermore, the arc-shaped grinding disc assembly includes an arc-shaped grinding disc, and the arc range of the arc-shaped grinding disc is 70°-80°. Two connecting rods are hinged on a side of the arc-shaped grinding disc close to the mounting axis, and the two connecting rods are respectively hinged to two sliders.

[0008] Furthermore, the arc-shaped grinding disc comprises an arc-shaped plate, and a grinding sandpaper is installed on a side of the arc-shaped plate away from the connecting rod, and the grinding sandpaper covers the outer surface and four side surfaces of the arc-shaped plate.

[0009] Furthermore, an operating hole for rotating the double-headed screw is provided at one end of the mounting shaft away from the grinding motor, and a cross groove is provided at one end of the double-headed screw away from the grinding motor.

[0010] Furthermore, a first screw with a handwheel is rotatably connected to the bottom of the machine base, one end of the mounting plate passes through the top of the machine base and is threadedly connected to the first screw, and the rotation of the first screw drives the mounting plate to slide in the direction of the positioning mechanism, and two limiting slide rails slidably connected to the mounting plate are installed on the top of the machine base.

[0011] Furthermore, the inner cavity of the fixed seat is set to a hollow structure, and a second screw with a handwheel is rotatably connected between the opposite ends of the fixed seat, and the handwheel of the second screw is set outside the fixed seat, and the outer wall of the second screw is threadedly connected to a mounting block, and the mounting block passes through the side wall of the fixed seat and is connected to the three-jaw chuck, and the second screw drives the three-jaw chuck to slide in the direction perpendicular to the grinding mechanism.

[0012] The beneficial effects of the utility model are:

[0013] When grinding the inside of a tubular workpiece, the utility model can install and fix the tubular by a three-jaw chuck, then insert the installation shaft with the arc-shaped grinding disc assembly into the inside of the tubular workpiece, and start the grinding motor to drive the arc-shaped grinding disc assembly to rotate to grind the inner wall of the tubular. Moreover, through the arrangement of the double-headed screw and the two sliders, when grinding processing is required for tubulars with different inner diameters, the double-headed screw can be rotated to drive the two sliders to slide in opposite directions, thereby driving the arc-shaped grinding disc assembly to slide, and adjusting the unfolding height of the four groups of arc-shaped grinding disc assemblies, so that the arc-shaped grinding disc assembly can be tightly attached to ensure the grinding effect, thereby enabling the grinding assembly to adapt to tubular workpieces with different inner diameters, and at the same time, the interlocking effect between the double-headed screw and the slider can ensure the stability of the arc-shaped grinding disc assembly during grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the grinding device of the utility model;

[0015] Figure 2 It is a front view structural schematic diagram of the grinding device of the utility model;

[0016] Figure 3 It is a schematic diagram of the front section structure of the grinding device of the utility model;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at the center A;

[0018] Description of labels:

[0019] 1. Machine base; 2. Grinding mechanism; 21. Mounting plate; 22. Grinding motor; 23. Mounting shaft; 231. Slide groove; 232. Operating hole; 24. Double-ended screw; 241. Cross groove; 25. Slider; 26. Arc grinding disc assembly; 261. Arc plate; 262. Grinding sandpaper; 27. First screw; 28. Limiting slide rail; 3. Positioning mechanism; 31. Three-jaw chuck; 32. Fixed seat; 33. Second screw; 34. Mounting block. DETAILED DESCRIPTION

[0020] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0021] Please refer to Figure 1-4 , the technical solution adopted by the utility model is:

[0022] An automobile parts grinding device comprises a machine base, wherein a grinding mechanism and a positioning mechanism that cooperate with each other are installed at opposite ends of the top of the machine base, wherein the positioning mechanism comprises a three-jaw chuck and a fixed seat, and the three-jaw chuck is installed on a side of the fixed seat close to the grinding mechanism;

[0023] The grinding mechanism includes a mounting plate, a grinding motor is installed on one side of the mounting plate, and the output shaft of the grinding motor is coaxially arranged with the three-jaw chuck, the output end of the grinding motor passes through the side wall of the mounting plate and is installed with an internal hollow mounting shaft, a double-headed screw is rotatably connected between the opposite ends of the inner cavity of the mounting shaft, and sliders are symmetrically threaded on the outer walls of the opposite ends of the double-headed screw, four groups of arc-shaped grinding disc assemblies are hinged at equal angles between the outer walls of two of the sliders, and a sliding groove is opened on the side wall of the mounting shaft for the arc-shaped grinding disc assembly to pass through and slide.

[0024] From the above description, it can be seen that the beneficial effects of the utility model are:

[0025] When grinding the inside of a tubular workpiece, the tube can be installed and fixed by a three-jaw chuck, and then the installation shaft with the arc-shaped grinding disc assembly is inserted into the inside of the tubular workpiece, and the grinding motor is started to drive the arc-shaped grinding disc assembly to rotate to grind the inner wall of the tube. In addition, through the setting of the double-headed screw and the two sliders, when grinding tubes with different inner diameters, the double-headed screw can be rotated to drive the two sliders to slide in opposite directions, thereby driving the arc-shaped grinding disc assembly to slide, and adjusting the unfolded height of the four groups of arc-shaped grinding disc assemblies so that the arc-shaped grinding disc assembly can fit tightly to ensure the grinding effect, so that the grinding assembly can adapt to tubular workpieces with different inner diameters.

[0026] Furthermore, the arc-shaped grinding disc assembly includes an arc-shaped grinding disc, and the arc range of the arc-shaped grinding disc is 70°-80°. Two connecting rods are hinged on a side of the arc-shaped grinding disc close to the mounting axis, and the two connecting rods are respectively hinged to two sliders.

[0027] Furthermore, the arc-shaped grinding disc comprises an arc-shaped plate, and a grinding sandpaper is installed on a side of the arc-shaped plate away from the connecting rod, and the grinding sandpaper covers the outer surface and four side surfaces of the arc-shaped plate.

[0028] From the above description, it can be known that the sandpaper covering the four side surfaces of the curved plate can prevent the side surfaces of the curved plate from contacting the inner wall of the workpiece.

[0029] Furthermore, an operating hole for rotating the double-headed screw is provided at one end of the mounting shaft away from the grinding motor, and a cross groove is provided at one end of the double-headed screw away from the grinding motor.

[0030] From the above description, it can be seen that it is convenient to rotate the double-ended screw rod with the help of an external cross screwdriver, so as to realize the unfolding of the arc-shaped grinding disc.

[0031] Furthermore, a first screw with a handwheel is rotatably connected to the bottom of the machine base, one end of the mounting plate passes through the top of the machine base and is threadedly connected to the first screw, and the rotation of the first screw drives the mounting plate to slide in the direction of the positioning mechanism, and two limiting slide rails slidably connected to the mounting plate are installed on the top of the machine base.

[0032] From the above description, it can be known that rotating the first screw rod can drive the grinding mechanism to slide in the direction of the positioning mechanism, thereby adjusting the distance between the grinding mechanism and the positioning mechanism, so that workpieces of different lengths can be ground.

[0033] Furthermore, the inner cavity of the fixed seat is set to a hollow structure, and a second screw with a handwheel is rotatably connected between the opposite ends of the fixed seat, and the handwheel of the second screw is set outside the fixed seat, and the outer wall of the second screw is threadedly connected to a mounting block, and the mounting block passes through the side wall of the fixed seat and is connected to the three-jaw chuck, and the second screw drives the three-jaw chuck to slide in the direction perpendicular to the grinding mechanism.

[0034] From the above description, it can be known that rotating the second screw rod can drive the mounting block and the three-jaw chuck to slide, thereby causing an offset between the three-jaw chuck and the grinding mechanism, so that the outer surface of the workpiece can be ground.

[0035] Please refer to Figure 1-4 As shown, the first embodiment of the utility model is:

[0036] Please refer to Figure 1, an automobile parts grinding device, comprising a machine base 1, wherein a grinding mechanism 2 and a positioning mechanism 3 are mounted on opposite ends of the top of the machine base 1, wherein the positioning mechanism 3 comprises a three-jaw chuck 31 and a fixed seat 32, wherein the three-jaw chuck 31 is mounted on a side of the fixed seat 32 close to the grinding mechanism 2;

[0037] Please refer to Figure 3 and Figure 4 The grinding mechanism 2 includes a mounting plate 21, a grinding motor 22 is mounted on one side of the mounting plate 21, and the output shaft of the grinding motor 22 is coaxially arranged with the three-jaw chuck 31, the output end of the grinding motor 22 passes through the side wall of the mounting plate 21 and is mounted with an internal hollow mounting shaft 23, a double-headed screw rod 24 is rotatably connected between the opposite ends of the inner cavity of the mounting shaft 23, and the outer walls of the opposite ends of the double-headed screw rod 24 are symmetrically threaded with sliders 25, four groups of arc-shaped grinding disc assemblies 26 are hinged at equal angles between the outer walls of the two sliders 25, and a slide groove 231 is opened on the side wall of the mounting shaft 23 for the arc-shaped grinding disc assembly 26 to pass through and slide.

[0038] Please refer to Figure 4 The arc-shaped grinding disc assembly 26 includes an arc-shaped grinding disc, and the arc of the arc-shaped grinding disc is 75°. Two connecting rods are hinged on a side of the arc-shaped grinding disc close to the mounting shaft 23, and the two connecting rods are hinged to the two sliders 25 respectively.

[0039] Please refer to Figure 4 The arc-shaped grinding disc includes an arc-shaped plate 261, and a grinding sandpaper 262 is installed on a side of the arc-shaped plate 261 away from the connecting rod, and the grinding sandpaper 262 covers the outer surface and four side surfaces of the arc-shaped plate 261, and the grinding sandpaper and the arc-shaped plate are installed and fixed with countersunk bolts.

[0040] Please refer to Figure 4 An operating hole 232 for rotating the double-headed screw 24 is formed at one end of the mounting shaft 23 away from the grinding motor 22 , and a hole 241 is formed at one end of the double-headed screw 24 away from the grinding motor 22 .

[0041] Please refer to Figure 1 The bottom of the machine base 1 is rotatably connected to a first screw 27 with a handwheel, one end of the mounting plate 21 passes through the top of the machine base 1 and is threadedly connected to the first screw 27, and the rotation of the first screw 27 drives the mounting plate 21 to slide toward the positioning mechanism 3, and two limiting slide rails 28 slidably connected to the mounting plate 21 are installed on the top of the machine base 1.

[0042] Please refer to Figure 1 and Figure 2The inner cavity of the fixed seat 32 is set to a hollow structure, and a second screw 33 with a handwheel is rotatably connected between the opposite ends of the fixed seat 32, and the handwheel of the second screw 33 is set outside the fixed seat 32, and the outer wall of the second screw 33 is threadedly connected to a mounting block 34, and the mounting block 34 passes through the side wall of the fixed seat 32 and is connected to the three-jaw chuck 31, and the second screw 33 drives the three-jaw chuck 31 to slide in the direction perpendicular to the grinding mechanism 2.

[0043] The working process of the above-mentioned grinding device is as follows:

[0044] When grinding the inner wall of a tubular workpiece (such as an air intake pipe), the tubular workpiece is installed and fixed by a three-jaw chuck 31. Then, according to the inner diameter of the tubular workpiece, the staff rotates the double-headed screw 24 through an external tool to drive the two sliders 25 to slide in opposite directions, thereby lifting or retracting the four sets of arc-shaped grinding disc assemblies 26, adjusting the height of the four sets of arc-shaped grinding discs, and then rotating the first screw 27. The first screw 27 drives the mounting plate 21 to slide, so that the mounting shaft 23 and the arc-shaped grinding disc assembly 26 are inserted into the interior of the pipe workpiece, and the arc-shaped grinding disc assembly 26 is close to the inner wall of the pipe workpiece. Finally, the grinding motor 22 is started to drive the mounting shaft 23 and the arc-shaped grinding disc assembly 26 to rotate to grind the inner wall of the tubular workpiece.

[0045] When it is necessary to grind an outer wall of a tubular workpiece, the second screw 33 can be rotated to drive the mounting block 34 and the three-jaw chuck 31 to slide, so that the three-jaw chuck 31 is staggered with the grinding mechanism 2, so that the arc-shaped grinding disc can be close to the outer wall of the tubular workpiece, thereby grinding the outer wall at that location. In order to grind the entire outer wall of the tubular workpiece, a motor can be installed on the mounting block 34, and the three-jaw chuck 31 can be connected to the output of the motor, so that the three-jaw chuck 31 can be driven to rotate, thereby achieving grinding of the outer surface of the tubular workpiece.

[0046] To sum up, the utility model provides an automobile parts grinding device. When grinding the inside of a tubular workpiece, the tube can be installed and fixed by a three-jaw chuck, and then the mounting shaft with the arc-shaped grinding disc assembly is inserted into the inside of the tubular workpiece, and the grinding motor is started to drive the arc-shaped grinding disc assembly to rotate to grind the inner wall of the tubular workpiece. Moreover, through the arrangement of the double-headed screw and the two sliders, when grinding processing is required on tubes with different inner diameters, the double-headed screw can be rotated to drive the two sliders to slide in opposite directions, thereby driving the arc-shaped grinding disc assembly to slide, and adjusting the unfolded height of the four groups of arc-shaped grinding disc assemblies, so that the arc-shaped grinding disc assembly can be tightly attached to ensure the grinding effect, so that the grinding assembly can adapt to tubular workpieces with different inner diameters, and at the same time, the interlocking effect between the double-headed screw and the slider can ensure the stability of the arc-shaped grinding disc assembly during grinding.

[0047] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An automobile parts grinding device, characterized in that: It includes a machine base, and a grinding mechanism and a positioning mechanism that cooperate with each other are installed at two opposite ends of the top of the machine base. The positioning mechanism includes a three-jaw chuck and a fixed seat. The three-jaw chuck is installed on a side of the fixed seat close to the grinding mechanism; The grinding mechanism includes a mounting plate, a grinding motor is installed on one side of the mounting plate, and the output shaft of the grinding motor is coaxially arranged with the three-jaw chuck, the output end of the grinding motor passes through the side wall of the mounting plate and is installed with an internal hollow mounting shaft, a double-headed screw is rotatably connected between the opposite ends of the inner cavity of the mounting shaft, and sliders are symmetrically threaded on the outer walls of the opposite ends of the double-headed screw, four groups of arc-shaped grinding disc assemblies are hinged at equal angles between the outer walls of two of the sliders, and a sliding groove is opened on the side wall of the mounting shaft for the arc-shaped grinding disc assembly to pass through and slide.

2. The automobile parts grinding device according to claim 1, characterized in that: The arc-shaped grinding disc assembly comprises an arc-shaped grinding disc, and the arc range of the arc-shaped grinding disc is 70°-80°. Two connecting rods are hinged on a side of the arc-shaped grinding disc close to the mounting shaft, and the two connecting rods are hinged to two sliding blocks respectively.

3. The automobile parts grinding device according to claim 2, characterized in that: The arc-shaped grinding disc comprises an arc-shaped plate, and a grinding sandpaper is installed on a side of the arc-shaped plate away from the connecting rod, and the grinding sandpaper covers the outer surface and four side surfaces of the arc-shaped grinding disc.

4. The automobile parts grinding device according to claim 1, characterized in that: An operating hole for rotating the double-headed screw is formed at one end of the installation shaft away from the grinding motor, and a cross groove is formed at one end of the double-headed screw away from the grinding motor.

5. The automobile parts grinding device according to claim 1, characterized in that: The bottom of the machine base is rotatably connected to a first screw with a handwheel, one end of the mounting plate passes through the top of the machine base and is threadedly connected to the first screw, and the rotation of the first screw drives the mounting plate to slide toward the positioning mechanism, and two limiting slide rails slidably connected to the mounting plate are installed on the top of the machine base.

6. The automobile parts grinding device according to claim 1, characterized in that: The inner cavity of the fixed seat is set to a hollow structure, and a second screw with a handwheel is rotatably connected between the opposite ends of the fixed seat, and the handwheel of the second screw is set outside the fixed seat, and the outer wall of the second screw is threadedly connected to a mounting block, and the mounting block passes through the side wall of the fixed seat and is connected to the three-jaw chuck, and the second screw drives the three-jaw chuck to slide in the direction perpendicular to the grinding mechanism.

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