Linear grinding device

Abstract

The utility model belongs to the technical field of cylindrical polishing, and mainly relates to a linear polishing device which comprises a supporting frame, a polishing roller, a first driving motor and abrasive paper. The abrasive paper is adhered to the circumferential surface of the grinding roller and is used for grinding the outer circumferential surface of the cylindrical workpiece; the grinding roller is rotationally assembled on the supporting frame around the axis of the grinding roller, and the central axis of the grinding roller is parallel to the central axis of a cylindrical workpiece to be ground; the first driving motor is fixed to the supporting frame and is in transmission connection with the grinding roller so as to drive the grinding roller to rotate. And the supporting frame supports the grinding roller, so that abrasive paper on the grinding roller is in full stress contact with the outer circumferential surface of the cylindrical workpiece, the grinding effect is better, and the grinding efficiency is higher. And the outer circumferential surface of the grinding roller and the outer circumferential surface of the cylindrical workpiece are in parallel stress contact, the contact shape is linear and is not limited to the diameter size of the cylindrical workpiece, and the universality is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of cylindrical workpiece grinding, and mainly relates to a linear grinding device. Background Art

[0002] After cutting cylindrical workpieces, tool marks and burrs are often left on the outer circumference of the workpiece, which require sanding to remove. Additionally, after forming processes such as forging, casting, and stamping, the outer circumference of the cylindrical workpiece may have defects such as scale and cracks. Sanding can improve these problems.

[0003] Existing grinding devices, such as the one disclosed in the Chinese patent document with authorization announcement number CN218964976U, are a chip burr removal device for lathe processing. The device includes a lathe body, a transverse hole is formed on one side of the lathe body, a shaft is inserted into the transverse hole, both ends of the shaft are fixedly connected to side rods, one side of the two side rods is fixedly connected to a slide, the outer side of the slide is slidably connected to a slide seat, the top of the slide seat is fixedly connected to an upper support rod, a rocker arm is installed on one side of the slide seat, and a cross bar is fixedly installed on one side of the rocker arm, the upper support rod, and the slide seat, and the outer side of the multiple cross bars are all rotatably connected to a sleeve. Through the design of the slide seat and the rocker arm, the operator adjusts the angle of the slide seat to make the sandpaper rub against the surface of the workpiece, thereby grinding the outer circumference of the cylindrical workpiece to achieve the effect of deburring.

[0004] However, sandpaper is made of paper. When the pressure of the workpiece on the sandpaper is too great, the sandpaper is easy to break. When the pressure of the cylindrical workpiece on the sandpaper is small, the sandpaper does not fully contact the outer circumference of the cylindrical workpiece, resulting in incomplete grinding of the cylindrical workpiece, low grinding efficiency and waste of time. Utility Model Content

[0005] The utility model provides a linear grinding device to solve the problem in the prior art that the grinding device and the cylindrical workpiece are easily disconnected when the contact force is large during grinding, and the sandpaper does not completely grind the outer circumference of the cylindrical workpiece when the force is small, resulting in low friction efficiency.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A linear grinding device comprises a support frame, a grinding roller, a first drive motor and sandpaper; the sandpaper is adhered to the circumferential surface of the grinding roller and is used to grind the outer circumferential surface of a cylindrical workpiece; the grinding roller is assembled on the support frame so as to rotate around its own axis, and the central axis of the grinding roller is parallel to the central axis of the cylindrical workpiece to be ground; the first drive motor is fixed to the support frame and is in transmission connection with the grinding roller to drive the grinding roller to rotate.

[0008] Beneficial effects: The support frame supports the grinding roller, enabling the sandpaper on the grinding roller to come into full force contact with the outer circumferential surface of the cylindrical workpiece, resulting in better grinding effect and higher grinding efficiency. Moreover, the outer circumferential surface of the grinding roller is in parallel force contact with the outer circumferential surface of the cylindrical workpiece, and the contact shape is linear, not limited to the diameter size of the cylindrical workpiece, thus having good versatility.

[0009] Further, a gear transmission mechanism is provided between the first driving motor and the grinding roller. The gear transmission mechanism includes a driving gear fixedly connected to the output shaft of the first driving motor and a driven gear mounted on the roller shaft of the grinding roller, and the driving gear meshes with the driven gear.

[0010] Beneficial effects: Gear transmission has high efficiency, small energy loss, saves energy, and gears can transmit a large amount of power, making it easier for the grinding roller and the cylindrical workpiece to rotate and rub against each other.

[0011] Further, the support frame includes two parallel and spaced-apart support plates and a fixing plate connecting the two support plates. The driving gear and the driven gear are both located outside one of the support plates, the first driving motor is installed between the two support plates, and the grinding roller is rotationally assembled with the two support plates.

[0012] Further, the support plate is of a split structure, including a plate body and a mounting seat detachably connected to the plate body. The grinding roller is rotationally assembled with the two mounting seats, and the first driving motor is installed between the two plate bodies.

[0013] Further, the plate body is provided with a U-shaped groove for detachably plugging and assembling with the mounting seat. The notch of the U-shaped groove is used to face the cylindrical workpiece to be processed. The plate body is provided with a mounting hole penetrating through the U-shaped groove in the up-down direction, and the mounting seat is provided with a through hole penetrating through itself in the up-down direction. A double-headed stud is correspondingly inserted through the mounting hole and the through hole, and locking nuts are respectively threadedly connected to both ends of the double-headed stud.

[0014] Beneficial effects: The mounting seat and the U-shaped groove are detachably pluggable and assembled. When replacing the sandpaper, the grinding roller can be removed for replacement, providing a larger space and more convenient replacement. Moreover, the double-headed stud and the locking nuts are fixedly connected, facilitating installation and disassembly.

[0015] Further, the linear grinding device further includes a frame. Defining that the central axis of the grinding roller extends in the left-right direction, a movable frame is movably assembled on the frame in the left-right direction, and the support frame is movably assembled on the movable frame in the front-back direction.

[0016] Beneficial effects: The support frame can move in the left-right direction, enabling the sandpaper to move along the length direction of the cylindrical workpiece, changing the position in the length direction of the cylindrical workpiece to be ground, which is beneficial to the complete grinding of the entire outer circumferential surface of the cylindrical workpiece by the sandpaper.

[0017] Further, the movable frame is in guiding sliding fit with the first slide rail. A first driving lead screw is also rotationally assembled on the machine frame. The first driving lead screw is drivingly connected to a second driving motor, and the movable frame is threadedly connected to the first driving lead screw.

[0018] Beneficial effects: The first driving lead screw and the movable frame form a left-right lead screw-nut transmission mechanism. The first driving lead screw can provide precise control of converting rotational motion into linear motion. The slide rail ensures straightness and stability during the movement. The combination of the first driving lead screw and the first slide rail achieves high-precision position control when the movable frame moves in the left-right direction. The second driving motor is used to provide rotational power for the rotation of the first driving lead screw, saving manpower.

[0019] Further, a second slide rail extending in the front-rear direction is provided on the movable frame. A second driving lead screw extending in the front-rear direction is rotationally assembled on the movable frame. The second driving lead screw is drivingly connected to a third driving motor, and a slider is threadedly connected to the second driving lead screw.

[0020] Beneficial effects: The second driving lead screw and the slider form a front-rear lead screw-nut transmission mechanism. The second driving lead screw can provide precise control of converting rotational motion into linear motion. The slide rail ensures straightness and stability during the movement. The combination of the second driving lead screw and the second slide rail achieves high-precision position control when the support frame moves in the front-rear direction. The third driving motor is used to provide rotational power for the rotation of the second driving lead screw, saving manpower.

[0021] Further, the slider is detachably connected to the fixed plate.

[0022] Beneficial effects: The detachable connection between the slider and the fixed plate makes it more convenient to replace the components on the support frame and allows different grinding methods to be selected according to the grinding requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present utility model will become readily understood. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0024] Figure 1 is a structural schematic diagram of the present utility model;

[0025] Figure 2 is Figure 1 an enlarged schematic diagram of part A in

[0026] Figure 3 is a structural schematic diagram of the support frame of the present utility model.

[0027] Description of the reference numerals:

[0028] 1. Cylindrical workpiece; 2. Frame; 3. Support plate; 4. First drive motor; 5. Grinding roller; 6. Double-headed stud; 7. Mounting seat; 8. Fixed plate; 9. Second slide rail; 10. Driving gear; 11. Screw; 12. Second drive screw; 13. Slide block; 14. Movable frame; 15. First drive screw; 16. First slide rail; 17. Plate body; 18. Driven gear. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0030] The following specifically introduces various non-limiting embodiments of the present invention. The number of any element in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0031] As Figure 1 and Figure 2 shown, a linear grinding device includes a support frame, a grinding roller 5, a first drive motor 4 and sandpaper.

[0032] As Figure 2 shown, the support frame has a U-shaped structure and includes a fixed plate 8 and two support plates 3 connected together. The two support plates 3 are parallel, and the two support plates 3 are perpendicular to the fixed plate 8. A rotating shaft fixedly connected to the grinding roller 5 is provided along the axial direction of the grinding roller 5 inside the grinding roller 5, and the sandpaper is adhered to the entire outer circumferential surface of the grinding roller 5 through a magic tape.

[0033] As Figure 2As shown in the figure, the support plate 3 is of a split structure, including a plate body 17 and a mounting seat 7 detachably connected to the plate body 17. The grinding roller 5 is rotationally assembled with the two mounting seats 7, and both of the two mounting seats 7 are perpendicular to the axis of the roller shaft of the grinding roller 5. The first driving motor 4 is installed between the two plate bodies 17. The plate body 17 is provided with a U-shaped groove detachably inserted and assembled with the mounting seat 7. The notch of the U-shaped groove is used to face the cylindrical workpiece 1 to be processed. The plate body 17 is provided with a mounting hole penetrating through the U-shaped groove in the up and down direction, and the mounting seat 7 is provided with a through hole penetrating through itself in the up and down direction. A double-headed stud 6 is correspondingly inserted through the mounting hole and the through hole. Locking nuts are respectively screwed at both ends of the double-headed stud 6. The mounting seat 7 is detachably inserted and assembled with the U-shaped groove. When replacing the sandpaper, the grinding roller 5 can be removed for replacement, with a larger space and more convenient replacement. Moreover, the fixed connection between the double-headed stud 6 and the locking nut facilitates installation and disassembly. Of course, in other embodiments, the support plate 3 can also be set as an integral structure, and the entire support plate 3 needs to be removed when disassembling the grinding roller 5.

[0034] As Figure 3 shown in the figure, a driving gear 10 is connected to the output shaft of the first driving motor 4, and a driven gear 18 is connected to the roller shaft of the grinding roller 5. The driving gear 10 and the driven gear 18 are meshed to form a gear transmission mechanism, so as to realize the first driving motor 4 driving the grinding roller 5 to rotate. The gear transmission has high efficiency, small energy loss, saves energy, and the gear can transmit a large amount of power, making it easier for the grinding roller 5 and the cylindrical workpiece 1 to rotate and rub against each other. Moreover, both the driving gear 10 and the driven gear 18 are located outside one of the support plates 3.

[0035] As Figure 1 and Figure 2 shown in the figure, the machine frame 2 is provided with a first slide rail 16 extending in the left and right direction. An activity frame 14 is provided on the first slide rail 16 and is slidably matched with the first slide rail 16. The machine frame 2 is also rotationally assembled with a first driving lead screw 15. The first driving lead screw 15 is threadedly connected to the activity frame 14. The first driving lead screw 15 is drivingly connected to a second driving motor. The second driving motor drives the first driving lead screw 15 to rotate, and the activity frame 14 slidably assembled with the first driving lead screw 15 can realize left and right sliding on the first slide rail 16.

[0036] As Figure 1 and Figure 2 shown in the figure, the activity frame 14 is provided with a second slide rail 9 extending in the front and back direction. The activity frame 14 is also rotationally assembled with a second driving lead screw 12 extending in the front and back direction. The second driving lead screw 12 is drivingly connected to a third driving motor. A slider 13 is provided on the second slide rail 9 and is slidably matched with the second slide rail 9. The second driving lead screw 12 is threadedly connected to the slider 13. The third driving motor drives the second driving lead screw 12 to rotate, and the slider 13 slidably assembled with the second driving lead screw 12 can realize front and back sliding on the second slide rail 9.

[0037] As Figure 2 shown, four fastening holes are provided on the fixing plate 8 and are distributed in a rectangular shape. A single-headed screw 11 corresponding to the four fastening holes is fixed on the slider 13. The four single-headed screws 11 pass through the fastening holes and are detachably connected by four fastening nuts, making it more convenient to replace the grinding component on the support frame, and different grinding components can be selected according to the grinding requirements. Of course, in other embodiments, the movable frame 14 can also be driven by linear driving components such as linear modules, electric push rods, and cylinders to move left and right. Similarly, the support frame can also be driven by linear driving components such as linear modules, electric push rods, and cylinders to move back and forth.

[0038] The working process of the present utility model is as follows:

[0039] During the use of the present utility model, the double-headed stud 6 is removed, and then the grinding roller 5 is removed. Sandpaper is pasted on the entire outer circumferential surface of the grinding roller 5. Then, the grinding roller 5 is installed on the support frame. The workpiece rotates, the first driving motor 4 is turned on, and the first driving motor 4 drives the grinding roller 5 to rotate. The third driving motor is turned on, and the second driving screw 12 drives the slider 13 to adjust the sandpaper on the grinding roller 5 to a suitable grinding position. The suitable grinding position is the position where the sandpaper is fully stressed and contacts the outer circumferential surface of the cylindrical workpiece 1. Then, the sandpaper grinds the outer circumferential surface of the cylindrical workpiece 1. When the required grinding degree is reached, the second driving motor is turned on, and the first driving screw 15 drives the movable frame 14 to adjust the sandpaper to a new grinding position in the left-right direction and continue grinding until the entire outer circumferential surface of the cylindrical workpiece 1 is ground.

[0040] The support frame supports the grinding roller 5, enabling the sandpaper on the grinding roller 5 to fully stress and contact the outer circumferential surface of the cylindrical workpiece 1, resulting in better grinding effect and higher grinding efficiency. Moreover, the outer circumferential surface of the grinding roller 5 is in parallel stress contact with the outer circumferential surface of the cylindrical workpiece 1, and the contact shape is linear, not limited to the diameter size of the cylindrical workpiece 1, with good versatility.

Claims

1. A linear grinding device, characterized in that: It includes a support frame, a grinding roller, a first driving motor and sandpaper; The sandpaper is attached to the circumferential surface of the grinding roller and is used to grind the outer circumferential surface of the cylindrical workpiece; The grinding roller is mounted on the support frame and rotates around its own axis, and the central axis of the grinding roller is parallel to the central axis of the cylindrical workpiece to be ground; The first driving motor is fixed on the supporting frame and is in driving connection with the grinding roller to drive the grinding roller to rotate.

2. A linear grinding device according to claim 1, characterized in that: A gear transmission mechanism is provided between the first drive motor and the grinding roller. The gear transmission mechanism includes a drive gear fixedly connected to the output shaft of the first drive motor and a driven gear installed on the roller shaft of the grinding roller. The drive gear is meshed with the driven gear.

3. A linear grinding device according to claim 2, characterized in that: The support frame includes two parallel and spaced support plates and a fixed plate connecting the two support plates. The driving gear and the driven gear are both located on the outside of one of the support plates. The first driving motor is installed between the two support plates, and the grinding roller is rotatably assembled with the two support plates.

4. A linear grinding device according to claim 3, characterized in that: The support plate is a split structure, including a plate body and a mounting seat detachably connected to the plate body. The grinding roller is rotatably assembled with the two mounting seats, and the first drive motor is installed between the two plate bodies.

5. A linear grinding device according to claim 4, characterized in that: The plate body is provided with a U-shaped groove that is detachably plugged into and assembled with the mounting seat. The notch of the U-shaped groove is used to face the cylindrical workpiece to be processed. The plate body is provided with a mounting hole that penetrates the U-shaped groove in the up and down directions, and the mounting seat is provided with a through hole that penetrates itself in the up and down directions. Studs are correspondingly installed in the mounting holes and the through holes, and locking nuts are respectively threaded at both ends of the studs.

6. A linear grinding device according to any one of claims 3 to 5, characterized in that: The linear grinding device also includes a frame, which defines that the central axis of the grinding roller extends in the left and right directions. A movable frame is movably mounted on the frame in the left and right directions, and the support frame is movably mounted on the movable frame in the front and rear directions.

7. A linear grinding device according to claim 6, characterized in that: The frame is provided with a first slide rail extending in the left and right directions, the movable frame is slidingly matched with the first slide rail, and the frame is also rotatably equipped with a first driving screw, the first driving screw is transmission-connected to the second driving motor, and the movable frame is threadedly connected to the first driving screw.

8. The linear grinding device according to claim 6, characterized in that: The movable frame is provided with a second slide rail extending in the front-rear direction, and a second driving screw extending in the front-rear direction is rotatably mounted on the movable frame. The second driving screw is transmission-connected to the third driving motor, and a slider is threadedly connected to the second driving screw.

9. A linear grinding device according to claim 8, characterized in that: The sliding block is detachably connected to the fixing plate.

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