Workpiece single-face grinding device

Abstract

The utility model belongs to the technical field of round workpiece grinding, and particularly relates to a workpiece single-face grinding device which comprises a box body. A pair of supporting plates is fixedly connected to the bottom end in the box body; a circular ring is fixedly connected to the top end of the box body; a placing box is fixedly connected to the inner circular wall of the circular ring; a placing plate is arranged in the placing box; a group of first through grooves are formed in the circular ring; a first U-shaped frame is arranged in each first through groove; one side of each first U-shaped frame is fixedly connected to the outer circular wall of the placement box; and L-shaped plates are rotationally connected into the first U-shaped frames through first connecting shafts, so that the defects in the prior art are overcome, and the problems that when an existing grinding device fixes a circular workpiece, the circular workpiece is generally clamped from top to bottom, but the grinding surface is limited due to the clamping arrangement, and the grinding efficiency is affected are solved. And the grinding work is affected, and the grinding device is inconvenient to grind the circular workpiece.

Description

Technical Field

[0001] The utility model belongs to the technical field of circular workpiece grinding, in particular to a workpiece single-side grinding device. Background Art

[0002] Unmanned aerial vehicles, also known as drones, are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices, or are operated completely or intermittently autonomously by on-board computers. Compared with manned aircraft, drones are often more suitable for tasks that are too dull, dirty or dangerous. During the production process of drones, some internal circular workpieces need to have their surfaces ground to achieve perfect standards for the production of drones.

[0003] In the prior art, when a single-sided grinding device performs surface grinding on a circular workpiece, the circular workpiece will be restrained by a clamping and fixing method. However, when fixing the circular workpiece, the existing grinding device generally clamps the circular workpiece from top to bottom. However, such a clamping setting will cause the grinding surface to be limited, which will affect the grinding work and make it inconvenient for the grinding device to grind the circular workpiece.

[0004] To this end, the utility model provides a workpiece single-side grinding device. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art and to solve the problem that a single-sided grinding device needs to restrain the circular workpiece by clamping and fixing it when performing surface grinding on the circular workpiece, the existing grinding device generally clamps the circular workpiece from top to bottom when fixing the circular workpiece, but such a clamping setting will cause the grinding surface to be limited, affecting the grinding work and making it inconvenient for the grinding device to grind the circular workpiece.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a single-sided grinding device for a workpiece described in the utility model comprises a box body; a pair of support plates are fixedly connected to the bottom end of the box body; a circular ring is fixedly connected to the top end of the box body; a placement box is fixedly connected to the inner circular wall of the circular ring; a placement plate is provided inside the placement box; a group of first through grooves are opened on the circular ring; a first U-shaped frame is arranged in a group of the first through grooves; one side of a group of the first U-shaped frames is fixedly connected to the outer circular wall of the placement box; an L-shaped plate is rotatably connected to a group of the first U-shaped frames through a first connecting shaft; a second through groove is opened at one end of a group of the L-shaped plates; a pair of second through grooves are rotatably connected to a support rod through a second connecting shaft; an arc-shaped clamping block is fixedly connected to one end of a group of the L-shaped plates; a grinding piece is provided at the top end of the box body; a power piece is arranged inside the box body; the power piece is used to drive the rotation of the first U-shaped frame; a group of supporting legs is fixedly connected to the bottom end of the box body.

[0007] Preferably, the power part includes a first motor; the first motor is fixedly connected to the bottom end of the box body; a rotating shaft is provided at the output end of the first motor; a first gear is fixedly connected to the outer circular wall of the rotating shaft; a first rotating rod is rotatably connected to the bottom end of the placement box, and the bottom end of the first rotating rod is rotatably connected to the top end of one of the pair of support plates; a support ring is slidably connected to the first rotating rod; a group of second U-shaped frames are fixedly connected to the outer circular wall of the support ring; the other ends of a group of support rods are rotatably connected to the inside of a group of second U-shaped frames through a third connecting shaft; a second gear is fixedly connected to the first rotating rod; the first gear and the second gear are meshed with each other.

[0008] Preferably, the grinding member includes a support column; the support column is fixedly connected to the top of the box body; a pair of grooves are opened on one side of the support column; a first support block is slidably connected to one side of the support column; a second support block is fixedly connected to one end of the first support block; a second motor is fixedly connected to the top of the second support block; a second rotating rod is provided at the output end of the second motor, and one end of the second rotating rod passes through the second support block and is fixedly connected to a grinding disc; the grinding disc is arranged directly above the placement box.

[0009] Preferably, a third rotating rod is provided in the box; one end of the third rotating rod is rotatably connected to the top of one of a pair of support plates, and the top of the third rotating rod passes through the top of the box and is rotatably connected to the top inside the support column; an arc block is slidably connected to the third rotating rod, and the arc block is rotatably connected to the third rotating rod; a third gear is fixed to the third rotating rod; the first gear and the third gear are meshed with each other.

[0010] Preferably, a group of first connecting rods are fixedly connected to the bottom end of the placement plate, and the bottom ends of the group of first connecting rods all pass through the placement box and are fixedly connected to the first trapezoidal block; a group of square blocks are fixedly connected to the bottom end of the placement box; a group of square blocks are each provided with a second connecting rod on one side, and one end of a group of second connecting rods all pass through the square block and are slidably connected inside the square block; the other ends of a group of second connecting rods are each fixedly connected to the second trapezoidal block through a spring; one end of a group of second connecting rods is each arranged below a group of first U-shaped frames.

[0011] Preferably, rubber pads are provided at the bottom ends of the supporting legs.

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

[0013] 1. The utility model discloses a single-sided grinding device for a workpiece, wherein a box is provided, a placing box is provided at the top of the box to avoid unevenness of height and bottom, a circular ring is fixedly connected to the outer side of the placing box, and the bottom end of the circular ring is fixedly connected to the top of the box, so that the placing box can be supported, a group of through grooves are opened on the circular ring, a first U-shaped frame is provided in the through grooves, an L-shaped plate is provided in a group of first U-shaped frames, and a group of L-shaped plates can be rotated 90° in a group of first U-shaped frames by passing through a power member and a first connecting shaft, and the arc-shaped clamping block is flipped to the top of the placing box so that the arc-shaped surface can clamp the circular workpiece to be clamped.

[0014] 2. The utility model describes a single-sided grinding device for a workpiece, by fixing a group of first connecting rods on the bottom end of a placement plate, and passing one end of the first connecting rods through a placement box, so that the placement plate can be slidably connected to the inside of the placement box, and a first trapezoidal block is set on one end of the first connecting rod. When the power member drives the support rod, the support rod drives the L-shaped plate to rotate downward, which will squeeze the second connecting rod. When the inclined surfaces of the first trapezoidal block and the second trapezoidal block contact, the second trapezoidal block will squeeze the first trapezoidal block upward and push the placement plate upward, so that the ground circular workpiece is higher than the position during grinding, making it more convenient for the staff to take it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is an internal structure diagram of the utility model;

[0019] Figure 4 It is a schematic diagram of a local structure in the utility model;

[0020] Figure 5 yes Figure 4 A magnified view of middle;

[0021] In the figure: 1, box body; 2, support plate; 3, circular ring; 4, placement box; 5, placement plate; 6, first through groove; 7, first U-shaped frame; 8, L-shaped plate; 9, second through groove; 10, support rod; 11, arc clamping block; 12, first motor; 13, rotating shaft; 14, first gear; 15, first rotating rod; 16, support ring; 17, second U-shaped frame; 18, second gear; 19, support column; 20, groove; 21, first support block; 22, second support block; 23, second motor; 24, second rotating rod; 25, grinding disc; 26, third rotating rod; 27, arc block; 28, third gear; 29, first connecting rod; 30, first trapezoidal block; 31, square block; 32, second connecting rod; 33, spring; 34, second trapezoidal block; 35, supporting leg. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 5As shown, a single-sided grinding device for a workpiece described in an embodiment of the utility model comprises a box body 1; a pair of support plates 2 are fixedly connected to the bottom end of the box body 1; a circular ring 3 is fixedly connected to the top end of the box body 1; a placement box 4 is fixedly connected to the inner circular wall of the circular ring 3; a placement plate 5 is arranged inside the placement box 4; a group of first through grooves 6 are opened on the circular ring 3; a first U-shaped frame 7 is arranged in a group of the first through grooves 6; one side of a group of the first U-shaped frames 7 is fixedly connected to the outer circular wall of the placement box 4; an L-shaped plate 8 is rotatably connected to a group of the first U-shaped frames 7 through a first connecting shaft; a second through groove 9 is opened at one end of a group of the L-shaped plates 8; a pair of the second through grooves 9 are rotatably connected to a support rod 10 through a second connecting shaft; an arc-shaped clamping block 11 is fixedly connected to one end of a group of the L-shaped plates 8; a grinding piece is arranged at the top end of the box body 1; a power piece is arranged inside the box 1; the power piece is used to drive the rotation of the first U-shaped frame 7 The bottom end of the box body 1 is fixedly connected to a group of supporting legs 35. When working, the box body 1 is set, a placing box 4 is set at the top of the box body 1, and a pair of placing plates 5 are set inside the placing box 4 to place the circular workpiece that needs to be single-sided polished in a plane to avoid unevenness of the high and low sides and problems in grinding. The outer side of the placing box 4 is fixedly connected to the circular ring 3, so that the bottom end of the circular ring 3 is fixedly connected to the top of the box body 1, and the placing box 4 can be supported. A group of through grooves are opened on the circular ring 3, and a first U-shaped frame 7 is set in the through grooves. An L-shaped plate 8 is set in a group of first U-shaped frames 7. A group of L-shaped plates 8 can be rotated 90° in a group of first U-shaped frames 7 through a power member and a first connecting shaft, and the arc clamping block 11 is turned over to the top of the placing box 4 so that the arc surface faces the circular workpiece that needs to be clamped, and the circular workpiece placed on the placing plate 5 by the staff is clamped and fixed, and then the circular workpiece is ground by the grinding member.

[0024] The power member includes a first motor 12; the first motor 12 is fixedly connected to the bottom end of the box 1; the output end of the first motor 12 is provided with a rotating shaft 13; the outer circumferential wall of the rotating shaft 13 is fixedly connected to a first gear 14; the bottom end of the placement box 4 is rotatably connected to a first rotating rod 15, and the bottom end of the first rotating rod 15 is rotatably connected to the top of one of the pair of support plates 2; a support ring 16 is slidably connected to the first rotating rod 15; a group of second U-shaped frames 17 are fixedly connected to the outer circumferential wall of the support ring 16; the other ends of a group of support rods 10 are rotatably connected to the inside of a group of second U-shaped frames 17 through a third connecting shaft; the first rotating rod 15 A second gear 18 is fixedly connected to it; the first gear 14 and the second gear 18 are meshed with each other. When working, a first motor 12 is arranged inside the box body 1, a rotating shaft 13 is arranged at the output end of the first motor 12, and a first gear 14 is fixedly connected to the outer circular wall of the rotating shaft 13, so that the first gear 14 can mesh with the second gear 18 on the first rotating rod 15, so as to drive the first rotating rod 15 to rotate. When the first rotating rod 15 rotates, it will drive the support ring 16 to slide upward, and then drive the support rod 10, so that the support rod 10 can drive the L-shaped plate 8 connected to the inside of the first U-shaped frame 7 to rotate upward, and then grind through the grinding piece.

[0025] The grinding member includes a support column 19; the support column 19 is fixedly connected to the top of the box body 1; a pair of grooves 20 are opened on one side of the support column 19; a first support block 21 is slidably connected to one side of the support column 19; a second support block 22 is fixedly connected to one end of the first support block 21; a second motor 23 is fixedly connected to the top of the second support block 22; a second rotating rod 24 is provided at the output end of the second motor 23, and one end of the second rotating rod 24 passes through the second support block 22 and is fixedly connected to a grinding disc 25; the grinding disc 25 is arranged just above the placement box 4. When working, by arranging the support column 19 at the top of the box body 1, a pair of grooves 20 are opened on one side of the support column 19, so that the first support block 21 can be slidably connected to one side of the support column 19, and the first support block 21 drives the second support block 22 when sliding, and the second motor 23 is fixed to the top of the second support block 22 through the fixing of the second support block 22, so that the second motor 23 drives the second rotating rod 24 and then drives the grinding disc 25 to perform single-sided grinding on the circular workpiece.

[0026] A third rotating rod 26 is provided in the box body 1; one end of the third rotating rod 26 is rotatably connected to the top of one of the pair of support plates 2, and the top of the third rotating rod 26 passes through the top of the box body 1 and is rotatably connected to the top of the inner side of the support column 19; an arc block 27 is slidably connected to the third rotating rod 26, and the arc block 27 is rotatably connected to the third rotating rod 26; a third gear 28 is fixed to the third rotating rod 26; the first gear 14 and the third gear 28 are meshed with each other, and when working, the third gear 28 is rotated by setting a pair of support plates 2 inside the box body 1. The three rotating rods 26 are rotatably connected to the top of the support plate 2, so that the top of the third rotating rod 26 passes through the box 1 and is arranged at the top inside the support column 19, so that the arc block 27 can drive the first support block 21 to slide up and down, and then drive the grinding disc 25 to slide up and down. When grinding is required, the first motor 12 reverses to make the arc block 27 drive the grinding disc 25 to move downward to grind the circular workpiece. After grinding is completed, the first motor 12 rotates forward, and the arc block 27 drives the grinding disc 25 to move upward, so that the staff can take out the ground circular workpiece.

[0027] A group of first connecting rods 29 are fixedly connected to the bottom end of the placement plate 5, and the bottom ends of the group of first connecting rods 29 all penetrate the placement box 4 and are fixedly connected to the first trapezoidal block 30; a group of square blocks 31 are fixedly connected to the bottom end of the placement box 4; a group of square blocks 31 are provided with a second connecting rod 32 on one side, and one end of a group of second connecting rods 32 penetrates the square block 31 and is slidably connected to the inside of the square block 31; the other end of a group of second connecting rods 32 is fixedly connected to a second trapezoidal block 34 through a spring 33; one end of a group of second connecting rods 32 is arranged under a group of first U-shaped frames 7. When working, a group of first connecting rods 29 are fixedly connected to the bottom end of the placement plate 5, and one end of the first connecting rods 29 all penetrate the placement box 4, so that the placement plate 5 can be slidably connected to the inside of the placement box 4. A first trapezoidal block 30 is provided on one end of 29. When the power member drives the support rod 10, the support rod 10 drives the L-shaped plate 8 to rotate downward. When it rotates to the bottom end of the first U-shaped frame 7, because the position of the second connecting rod 32 is set directly below the first U-shaped frame 7, when the L-shaped plate 8 rotates downward, it will squeeze the second connecting rod 32, so that a group of second connecting rods 32 move inward at the same time, and then squeeze the second trapezoidal block 34 toward the first trapezoidal block 30. When the inclined surfaces of the first trapezoidal block 30 and the second trapezoidal block 34 contact, the second trapezoidal block 34 will squeeze the first trapezoidal block 30 upward, so that the first trapezoidal block 30 drives the first connecting rod 29 to move upward, and then push the placement plate 5 upward, so that the ground circular workpiece is higher than the position at the time of grinding, making it more convenient for the staff to take it.

[0028] The bottom ends of the support legs 35 are all provided with rubber pads. When working, the rubber pads provided at the bottom ends of the support legs 35 can provide a buffering effect on the grinding device during work, and the rubber pads can also make the support legs 35 more firmly in contact with the ground.

[0029] Working principle: by setting a box body 1, a placement box 4 is set on the top of the box body 1, and a pair of placement plates 5 are set inside the placement box 4 to place the circular workpiece that needs to be single-sided polished in a flat surface to avoid unevenness of the high and low sides, which may cause grinding problems. A circular ring 3 is fixed to the outside of the placement box 4 so that the bottom end of the circular ring 3 is fixed to the top of the box body 1, and the placement box 4 can be supported. A group of through grooves are opened on the circular ring 3, and a first U-shaped frame 7 is set in the through groove. An L-shaped plate 8 is set in a group of first U-shaped frames 7. A group of L-shaped plates 8 can be rotated 90° in a group of first U-shaped frames 7 through a power piece and a first connecting shaft, and the arc-shaped clamping block 11 is flipped to the top of the placement box 4 so that the arc-shaped surface faces the circular workpiece that needs to be clamped. The circular workpiece placed on the placement plate 5 is clamped and fixed, and then the circular workpiece is ground by the grinding piece. A first motor 12 is arranged inside the box body 1, a rotating shaft 13 is arranged at the output end of the first motor 12, and a first gear 14 is fixedly connected to the outer circular wall of the rotating shaft 13, so that the first gear 14 can mesh with the second gear 18 on the first rotating rod 15, so as to drive the first rotating rod 15 to rotate. When the first rotating rod 15 rotates, it will drive the support ring 16 to slide upward, and then drive the support rod 10, so that the support rod 10 can drive the L-shaped plate 8 connected to the inside of the first U-shaped frame 7 to rotate upward, and then grind by the grinding piece, and a support column 19 is arranged at the top of the box body 1, so that a pair of grooves are opened on one side of the support column 19 20, so that the first support block 21 can be slidably connected to one side of the support column 19, and the first support block 21 drives the second support block 22 when sliding. The second motor 23 is fixed to the top of the second support block 22 by fixing the second support block 22, so that the second motor 23 drives the second rotating rod 24 and then drives the grinding disc 25 to grind the circular workpiece on one side. By arranging a pair of support plates 2 inside the box body 1, the third rotating rod 26 is rotatably connected to the top of the support plate 2, so that the top of the third rotating rod 26 passes through the box body 1 and is arranged at the top of the support column 19, so that the arc block 27 can drive the first support block 21 to slide up and down, and then drive the grinding disc 25 to slide up and down. When grinding is required, the first motor 12 is reversed to make the arc block 27 drive the grinding The disc 25 moves downward to grind the circular workpiece. After grinding, the first motor 12 rotates forward, and the arc block 27 drives the grinding disc 25 to move upward, so that the staff can take out the ground circular workpiece. A group of first connecting rods 29 are fixed to the bottom end of the placement plate 5, and one end of the first connecting rod 29 passes through the placement box 4, so that the placement plate 5 can be slidably connected to the inside of the placement box 4. When the first trapezoidal block 30 is set on one end of the first connecting rod 29, when the power member drives the support rod 10, the support rod 10 drives the L-shaped plate 8 to rotate downward. When it rotates to the bottom end of the first U-shaped frame 7, because the position of the second connecting rod 32 is set directly below the first U-shaped frame 7, when the L-shaped plate 8 rotates downward, it will squeeze the second connecting rod 32.A set of second connecting rods 32 are simultaneously moved inward, thereby squeezing the second trapezoidal block 34 toward the first trapezoidal block 30. When the inclined surfaces of the first trapezoidal block 30 and the second trapezoidal block 34 contact, the second trapezoidal block 34 will squeeze the first trapezoidal block 30 upward, so that the first trapezoidal block 30 drives the first connecting rod 29 to move upward, thereby pushing the placement plate 5 upward, so that the ground circular workpiece is higher than the position where it was ground, making it more convenient for the staff to take it. By arranging a rubber pad at the bottom of the support leg 35, the grinding device can be buffered during operation, and the rubber pad can also make the support leg 35 more firmly in contact with the ground.

[0030] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A workpiece single-side grinding device, characterized in that: The invention comprises a box body (1); a pair of support plates (2) are fixedly connected to the bottom end of the box body (1); a circular ring (3) is fixedly connected to the top end of the box body (1); a placement box (4) is fixedly connected to the inner circular wall of the circular ring (3); a placement plate (5) is arranged inside the placement box (4); a group of first through grooves (6) are provided on the circular ring (3); a first U-shaped frame (7) is arranged in each of the first through grooves (6); one side of each of the first U-shaped frames (7) is fixedly connected to the outer circular wall of the placement box (4); a group of the first U-shaped frames (7) An L-shaped plate (8) is rotatably connected to the box body (1) via a first connecting shaft; a group of the L-shaped plates (8) are each provided with a second through slot (9) at one end; a pair of the second through slots (9) are each rotatably connected to a support rod (10) via a second connecting shaft; a group of the L-shaped plates (8) are each fixedly connected to an arc-shaped clamping block (11) at one end; a grinding member is provided at the top of the box body (1); a power member is provided inside the box body (1); the power member is used to drive the first U-shaped frame (7) to rotate; and a group of support legs (35) is fixedly connected to the bottom end of the box body (1).

2. A workpiece single-side grinding device according to claim 1, characterized in that: The power member comprises a first motor (12); the first motor (12) is fixedly connected to the bottom end of the box (1); a rotating shaft (13) is provided at the output end of the first motor (12); a first gear (14) is fixedly connected to the outer circular wall of the rotating shaft (13); a first rotating rod (15) is rotatably connected to the bottom end of the placement box (4), and the bottom end of the first rotating rod (15) is rotatably connected to the top end of one of the pair of support plates (2); a supporting ring (16) is slidably connected to the first rotating rod (15); a group of second U-shaped frames (17) are fixedly connected to the outer circular wall of the support ring (16); the other ends of a group of support rods (10) are rotatably connected to the inside of a group of second U-shaped frames (17) through a third connecting shaft; a second gear (18) is fixedly connected to the first rotating rod (15); the first gear (14) and the second gear (18) are meshed with each other.

3. A workpiece single-side grinding device according to claim 2, characterized in that: The grinding component comprises a support column (19); the support column (19) is fixedly connected to the top of the box body (1); a pair of grooves (20) are provided on one side of the support column (19); a first support block (21) is slidably connected to one side of the support column (19); a second support block (22) is fixedly connected to one end of the first support block (21); a second motor (23) is fixedly connected to the top of the second support block (22); a second rotating rod (24) is provided at the output end of the second motor (23), and one end of the second rotating rod (24) passes through the second support block (22) and is fixedly connected to a grinding disc (25); the grinding disc (25) is arranged directly above the placement box (4).

4. A workpiece single-side grinding device according to claim 3, characterized in that: A third rotating rod (26) is provided in the box body (1); one end of the third rotating rod (26) is rotatably connected to the top end of one of the pair of support plates (2), and the top end of the third rotating rod (26) passes through the top end of the box body (1) and is rotatably connected to the top end inside the support column (19); an arc block (27) is slidably connected to the third rotating rod (26), and the arc block (27) is rotatably connected to the third rotating rod (26); a third gear (28) is fixedly connected to the third rotating rod (26); and the first gear (14) and the third gear (28) are meshed with each other.

5. A workpiece single-side grinding device according to claim 4, characterized in that: A group of first connecting rods (29) are fixedly connected to the bottom end of the placement plate (5), and the bottom ends of the group of first connecting rods (29) all pass through the placement box (4) and are fixedly connected to the first trapezoidal block (30); a group of square blocks (31) are fixedly connected to the bottom end of the placement box (4); a group of second connecting rods (32) are provided on one side of the square blocks (31), and one end of the group of second connecting rods (32) all pass through the square blocks (31) and are slidably connected inside the square blocks (31); the other end of the group of second connecting rods (32) are fixedly connected to the second trapezoidal block (34) through a spring (33); one end of the group of second connecting rods (32) are arranged below the group of first U-shaped frames (7).

6. A workpiece single-side grinding device according to claim 5, characterized in that: The bottom ends of the supporting legs (35) are each provided with a rubber pad.

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