Multifunctional angle grinder

Abstract

The multifunctional angle grinding machine comprises a workbench, a fixing device used for fixing a product is arranged on the workbench, a swing grinding device used for grinding the outer angle of the product is arranged on the rear side of the workbench, and the swing grinding device comprises a mounting plate; an abrasive belt motor and a swing motor are arranged on the mounting plate, a swing arm rotating in the horizontal direction is pivoted to the mounting plate, an abrasive belt is connected between the abrasive belt motor and the swing arm, the swing motor is connected with a crank, and the crank is connected with the swing arm through a connecting rod; a left grinding head piece and a right grinding head piece which are used for grinding the side edges of a product are arranged below the workbench, and the left grinding head piece and the right grinding head piece are arranged at an angle of 90 degrees. According to the multifunctional angle grinding machine, the swing grinding device can continuously swing to grind an outer right angle into a round R angle, and can also be fixed at any angle to grind into a chamfer; the left grinding head piece and the right grinding head piece can grind welding marks on the two sides of the outer right angle of a workpiece, operation is easy and convenient, grinding uniformity is good, and grinding efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, and in particular to a multifunctional angle grinder. Background Art

[0002] Belt grinders are widely used in surface grinding of various parts made of metal and non-metal. They are often used in grinding products in industries such as machinery manufacturing, hardware tools, die castings, and daily hardware. They are an extremely widely used processing technology.

[0003] At present, the belt grinders sold and used on the market usually grind workpieces through preset grinding components. The existing belt grinders are usually provided with a base, a bracket fixed on the base and a motor. A driving pulley and a driven pulley are longitudinally arranged on the bracket. The driving pulley and the driven pulley are provided with sanding belts. Although this belt grinder has a simple structure and low cost, its function is relatively single. Summary of the invention

[0004] In order to make up for the deficiencies in the prior art, the present invention provides a multifunctional angle grinder, and the technical solution adopted is as follows:

[0005] A multifunctional angle grinder comprises a workbench, on which is provided a fixing device for fixing a product, on the rear side of the workbench is provided a swinging grinding device for grinding the outer angles of the product, the swinging grinding device comprises a mounting plate, on which are provided a sanding belt motor, a swinging motor, and a swinging arm pivotally connected to the mounting plate and rotating horizontally, an sanding belt is connected between the sanding belt motor and the swinging arm, the swinging motor is connected to a crank, and the crank is connected to the swinging arm through a connecting rod; a left grinding head sheet and a right grinding head sheet for grinding the side edges of the product are provided under the workbench, and the left grinding head sheet and the right grinding head sheet are arranged at an angle of 90 degrees.

[0006] Furthermore, the oscillating grinding device also includes a sanding belt tensioning mechanism.

[0007] Furthermore, the sanding belt tensioning mechanism comprises a tensioning cylinder, the sanding belt motor is slidably connected to the mounting plate, and the tensioning cylinder drives the sanding belt motor to slide.

[0008] Furthermore, the mounting plate is slidably connected to the bracket, the mounting plate slides toward the workbench, and the bracket is provided with a telescopic cylinder for driving the mounting plate to slide.

[0009] Furthermore, an arc-shaped concave plate is connected to the end of the swing arm, rollers are connected to both sides of the arc-shaped concave plate, and the abrasive belt is wound around the rollers.

[0010] Furthermore, the left grinding head plate and the right grinding head plate are each arranged on an angle adjustment plate.

[0011] Furthermore, the fixing device includes a downward pressure cylinder arranged above the workbench and a suction cup arranged below the workbench, the downward pressure cylinder is connected to a pressure plate, a plurality of fixing heads are arranged at the bottom of the pressure plate, and a suction cup through hole is arranged on the workbench.

[0012] Furthermore, the workbench is provided with two product positioning plates distributed at 90 degrees.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] The multifunctional angle grinder of the present invention has an oscillating grinding device which can continuously swing to grind the external right angle into a rounded R angle, and can also grind into a chamfer at a fixed angle; the left grinding head piece and the right grinding head piece can grind the weld marks on both sides of the external right angle of the workpiece, and the operation is simple, the grinding uniformity is good, and the grinding efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereoscopic diagram of a multifunctional angle grinder of the present invention.

[0016] Figure 2 It is a front view of a multifunctional angle grinder of the present invention.

[0017] Figure 3 It is a stereoscopic diagram of a grinding device of a multifunctional angle grinder of the present invention.

[0018] Figure 4 It is a front view of a grinding device of a multifunctional angle grinder of the present invention.

[0019] Among them: 1. Frame; 2. Control cabinet; 3. Touch screen; 4. Workbench; 5. Product positioning plate; 6. Down-pressure cylinder; 7. Suction cup; 8. Pressing plate; 9. Fixed head; 10. Mounting plate; 11. Sanding belt motor; 12. Swinging motor; 13. Swinging arm; 14. Sanding belt; 15. Crank; 16. Connecting rod; 17. Arc concave plate; 18. Roller; 19. Tensioning cylinder; 20. Bracket; 21. Telescopic cylinder; 22. Left grinding head piece; 23. Right grinding head piece; 24. Angle adjustment plate; 100. Product. DETAILED DESCRIPTION

[0020] Many specific details are described in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from the description, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Example 1

[0022] like Figures 1 to 4As shown, a multifunctional angle grinder has a control cabinet 2 on the top of a frame 1, and a touch screen 3 on the front wall of the control cabinet 2. A workbench 4 for carrying products is provided in the middle of the frame 1, and two product positioning plates 5 distributed at 90 degrees are provided on the workbench 4. The product positioning plates 5 can support the two right-angled sides of the product so that the outer corners of the product are exposed to the rear. The product positioning plates 5 can be fixedly connected or slidably connected.

[0023] The frame 1 is provided with a fixing device for fixing the product. The fixing device includes a downward pressing cylinder 6 arranged above the workbench 4 and a suction cup 7 arranged below the workbench 4. The downward pressing cylinder 6 is connected to a pressing plate 8, and the pressing plate 8 is connected to the frame 1 for sliding up and down. A plurality of fixing heads 9 are provided at the bottom of the pressing plate 8. The pressing plate 8 is lowered by the action of the downward pressing cylinder 6, so that the fixing heads 9 press the product from above. The workbench 4 is provided with a suction cup through hole, and the suction cup 7 is adsorbed on the product through the suction cup through hole to achieve the downward fixing of the product.

[0024] A swing grinding device for grinding the outer corners of products is provided at the rear side of the workbench 4. The swing grinding device includes a mounting plate 10, on which a sanding belt motor 11, a swinging motor 12, and a swinging arm 13 pivotally connected to rotate horizontally are provided. A sanding belt 14 is connected between the sanding belt motor 11 and the swinging arm 13. The swinging motor 12 is connected to a crank 15, and the crank 15 is connected to the swinging arm 13 through a connecting rod 16. An arc-shaped concave plate 17 is connected to the end of the swinging arm 13, and rollers 18 are connected to both sides of the arc-shaped concave plate 17, and the sanding belt 14 is wound around the rollers 18. The swinging motor 12 drives the swinging arm 13 to swing left and right through the crank 15 and the connecting rod 16, and the sanding belt motor 14 drives the sanding belt 14 to rotate around the roller 18.

[0025] The swing grinding device also includes a belt tensioning mechanism. The belt tensioning mechanism includes a tensioning cylinder 19. The belt motor 11 is slidably connected to the mounting plate 10. The tensioning cylinder 19 drives the belt motor 11 to slide. Through the telescopic movement of the tensioning cylinder 19, the belt motor 11 moves away from or close to the swing arm 13, so that the belt 14 connected between the belt motor 11 and the swing arm 13 becomes tighter or looser.

[0026] The mounting plate 10 is slidably connected to the bracket 20 through a slide rod, and the mounting plate 10 slides toward the workbench 4. The bracket 20 is provided with a telescopic cylinder 21 for driving the mounting plate 10 to slide. The mounting plate 10 can automatically approach the workbench 4 through the action of the telescopic cylinder 21, so that the sanding belt 14 fits the outer corner of the product, realizing automatic grinding.

[0027] A left grinding head sheet 22 and a right grinding head sheet 23 for grinding the side edge of the product are provided under the workbench 4. The left grinding head sheet 22 and the right grinding head sheet 23 are arranged at a 90-degree angle, so that the two right-angled edges of the product can be respectively ground. The left grinding head sheet and the right grinding head sheet are each arranged on an angle adjustment plate 24. By adjusting the pitch angle of the angle adjustment plate 24, the grinding angle of the left and right grinding head sheets can be conveniently adjusted.

[0028] The multifunctional angle grinder of the present invention has the following usage method and working principle:

[0029] Place the product 100 on the workbench 4, with the outer corner to be polished facing the inside of the frame 1, and the two right-angled sides of the product 100 respectively against the two product positioning plates 5; start the downward pressure cylinder 6 through the touch screen 3 to make the pressure plate 8 descend, and the fixed head 9 presses the product 100. At the same time, the suction cup 7 starts to suck the bottom surface of the product 100 to fix the upper and lower surfaces of the product; start the telescopic cylinder 21 to make the mounting plate 10 move toward the workbench, so that the sanding belt 14 is against the outer corner of the product 100, and then start the sanding belt motor 11 and the swing motor 12. The sanding belt motor 11 drives the sanding belt 14 to rotate, and the swing motor 12 drives the swing arm 13 to swing left and right through the crank 15 and the connecting rod 16, thereby realizing continuous swing grinding of the outer corner of the product 100, and a rounded R angle can be polished; the swing motor 12 can also be turned off to polish a chamfer. After grinding, the product 100 is placed between the left grinding head sheet 22 and the right grinding head sheet 23, and the weld marks on both sides of the product 100 can be ground.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional angle grinder, characterized in that: It comprises a workbench, on which is provided a fixing device for fixing the product, on the rear side of the workbench is provided a swinging grinding device for grinding the outer corners of the product, the swinging grinding device comprises a mounting plate, on which are provided a sanding belt motor, a swinging motor, and a swinging arm pivotally connected for horizontal rotation, an sanding belt is connected between the sanding belt motor and the swinging arm, the swinging motor is connected to a crank, and the crank is connected to the swinging arm through a connecting rod; a left grinding head sheet and a right grinding head sheet for grinding the side edges of the product are provided under the workbench, and the left grinding head sheet and the right grinding head sheet are arranged at an angle of 90 degrees.

2. The multifunctional angle grinder according to claim 1, characterized in that: The oscillating grinding device also includes a sanding belt tensioning mechanism.

3. The multifunctional angle grinder according to claim 2, characterized in that: The sand belt tensioning mechanism comprises a tensioning cylinder, the sand belt motor is slidably connected to the mounting plate, and the tensioning cylinder drives the sand belt motor to slide.

4. The multifunctional angle grinder according to claim 3, characterized in that: The mounting plate is slidably connected to the bracket, the mounting plate slides toward the workbench, and the bracket is provided with a telescopic cylinder for driving the mounting plate to slide.

5. The multifunctional angle grinder according to claim 4, characterized in that: The end of the swing arm is connected with an arc-shaped concave plate, and rollers are connected to both sides of the arc-shaped concave plate, and the abrasive belt is wound around the rollers.

6. The multifunctional angle grinder according to claim 5, characterized in that: The left grinding head sheet and the right grinding head sheet are respectively arranged on an angle adjustment plate.

7. The multifunctional angle grinder according to claim 6, characterized in that: The fixing device comprises a downward pressing cylinder arranged above the workbench and a suction cup arranged below the workbench, the downward pressing cylinder is connected with a pressing plate, a plurality of fixing heads are arranged at the bottom of the pressing plate, and a suction cup through hole is arranged on the workbench.

8. The multifunctional angle grinder according to claim 7, characterized in that: The workbench is provided with two product positioning plates distributed at 90 degrees.

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