A high efficiency polishing device for workpieces

Abstract

The present application relates to the technical field of workpiece polishing, in particular to a high-efficiency polishing device for workpieces, which comprises a clamping workbench, a twisting driving component, a horizontal connecting component, a double-side polishing component and a detection control component, the clamping workbench comprises a driving worktable and a clamping component, the clamping component is installed on the upper side of the driving worktable, the driving worktable drives the clamping component to rotate, the clamping component coaxially clamps the material, the driving worktable drives the horizontal movement and vertical movement of the twisting driving component, and the twisting driving component is located on the upper side of the driving worktable.The present application can drive the twisting driving component coaxially with the clamped material through the clamping workbench, drive the double-side polishing component to move downward through the horizontal connecting component, make the two ends of the double-side polishing component contact the inner and outer sides of the workpiece respectively, drive the double-side polishing component to move relative to the workpiece through the twisting driving component, and polish the inner and outer sides of the workpiece through the double-side polishing component simultaneously.

Description

Technical Field

[0001] This invention relates to the technical field of workpiece grinding, and in particular to a high-efficiency grinding device for workpieces. Background Technology

[0002] In fields such as machinery manufacturing, aerospace, automotive manufacturing, and precision mold making, grinding of workpiece surfaces is one of the key processes to ensure dimensional accuracy, surface roughness, and assembly performance. For example, engine blocks and precision gear blanks require grinding to remove machining allowances, correct shape errors, or improve surface quality.

[0003] Existing Chinese patent CN113649864A discloses a grinding device for hollow bearing surfaces. The device includes a fixing member, a moving member for conveying bearings during grinding, a first grinding member for grinding the outer surface, a second grinding member for grinding the inner surface, a feeding member for feeding bearings one by one, a loading member for loading bearings individually, a unloading member on the fixing member, and a clamping member. The loading member includes a loading box with a material channel, a ninth hydraulic cylinder, and a rotatable connecting rod frame. This invention's grinding device feeds bearings one by one, ensuring orderly feeding. It efficiently grinds both the inner and outer surfaces of the workpiece, reducing roughness and rotational friction. The device uses a pre-positioning method before grinding, ensuring precise positioning, reducing errors, and providing automatic grinding with high efficiency, thus reducing the labor intensity of workers.

[0004] In the aforementioned related technologies and existing technologies, for workpieces that require grinding both the inner and outer layers, the grinding of the inner and outer layers of the workpiece is carried out separately, resulting in relatively low grinding efficiency, and the corresponding grinding head needs to be replaced when grinding the inner and outer layers. Summary of the Invention

[0005] In order to simultaneously grind the inside and outside of cylindrical workpieces, the present invention provides a high-efficiency grinding device for workpieces.

[0006] The present invention provides a high-efficiency grinding device for workpieces, which adopts the following technical solution: including: The clamping worktable includes a drive worktable and a clamping component. The clamping component is mounted on the upper side of the drive worktable. The drive worktable drives the clamping component to rotate, and the clamping component coaxially clamps the material.

[0007] The torsion drive component is located on the upper side of the drive worktable, and the drive worktable drives the torsion drive component to move horizontally and vertically.

[0008] A horizontal connecting component, wherein multiple horizontal connecting components are provided, and the horizontal connecting components are mounted on the circumferential surface of the drive shaft of the torsion drive component.

[0009] The double-sided grinding component has the same number of components as the horizontal connecting components. Multiple double-sided grinding components are installed in a one-to-one correspondence with multiple horizontal connecting components. The twisting drive component drives the double-sided grinding components to grind the inside and outside of the material.

[0010] It also includes a detection control component, which is connected to the torsion drive component, and the detection control component is controlled to connect the drive worktable and the torsion drive component.

[0011] Optionally, the torsion drive component includes a drive motor and a lifting block. The drive motor is vertically mounted on one side of the lifting block, the lifting block is connected to the drive worktable, the drive worktable drives the lifting block to move up and down and horizontally, and the horizontal connecting component is connected to the circumferential surface of the output end of the drive motor.

[0012] Optionally, the horizontal connecting component includes: A swing adjustment plate is connected to the double-sided grinding components.

[0013] The inner shaft has one end of the swing adjustment plate fixedly sleeved on the outer surface of the inner shaft, and the inner shaft is rotatably connected to the circumferential surface of the drive shaft of the drive motor.

[0014] An adjusting gear is fixed coaxially with the inner shaft.

[0015] It also includes an adjusting gear ring, which is bolted to the outside of the drive shaft of the drive motor. After the bolt is loosened, the adjusting gear ring can rotate relative to the drive shaft of the drive motor.

[0016] Optionally, the dual-sided grinding component includes: A torsion plate, which is located below the swing adjustment plate.

[0017] An outer shaft is installed at the middle position on the upper surface of the torsion plate, and a swing adjustment plate is rotatably sleeved on the outer surface of the outer shaft. The outer shaft and the swing adjustment plate are elastically torsionally connected.

[0018] The inner shaft is coaxially rotatably sleeved on the outer surface of the outer shaft. A central gear is coaxially mounted on the inner shaft, and a grinding end plate is coaxially mounted on the lower end of the inner shaft.

[0019] The side shafts are provided in two symmetrically distributed on both sides of the inner shaft. The two ends of the swing adjustment plate are rotatably sleeved on the outside of the side shafts. Both side shafts are coaxially mounted with side gears, and both side gears mesh with the central gear. Both side shafts are coaxially mounted with side grinding columns at their lower ends.

[0020] Optionally, the torsion drive component further includes: A fixed gear ring is provided, wherein the upper end of the adjusting gear is cylindrical, and the fixed gear ring is rotatably sleeved on the cylindrical part of the adjusting gear, and the fixed gear ring is fixed to the lifting block.

[0021] The transmission gear is coaxially rotatably inserted into the upper end of the inner shaft, and the transmission gear and the inner shaft are driven by a chain.

[0022] Optionally, an annular cylinder is coaxially mounted on the upper end of the outer shaft. A spiral groove is formed on the outer surface of the annular cylinder. A pressure rod is contacted on the inner side of the spiral groove. A flat plate is fixed on the upper end of the pressure rod. The bottom surface of the flat plate is connected to the swing adjustment plate on the adjacent lower side through a vertically set elastic telescopic rod.

[0023] Optionally, a pressure ring is elastically connected to one side of the lifting block. The pressure ring is coaxially arranged with the drive shaft of the drive motor. The flat plate is located below the pressure ring. A sleeve plate is fixed to one side of the pressure ring. The sleeve plate is slidably sleeved on the outside of the lifting block. A height-fixing rod is provided on the lower side of the sleeve plate. The lower end of the height-fixing rod is fixed to the drive worktable.

[0024] Optionally, the height-fixing rod consists of a fixed rod and a threaded adjusting rod. The threaded adjusting rod is coaxially threadedly connected to the fixed rod. The lower end of the fixed rod is connected to the drive worktable, and the drive worktable drives the fixed rod to move horizontally synchronously with the lifting block.

[0025] Optionally, multiple horizontal connecting components are evenly distributed in a circumferential array around the drive shaft of the drive motor.

[0026] In summary, the present invention has the following beneficial technical effects: This invention utilizes the cooperation of a horizontal connecting component and a double-sided grinding component. After the clamping worktable drives the torsion drive component to be coaxial with the clamped material, the horizontal connecting component drives the double-sided grinding component to move downward, so that the two ends of the double-sided grinding component contact the inner and outer sides of the workpiece respectively. The torsion drive component drives the double-sided grinding component to move relative to the workpiece, and the double-sided grinding component simultaneously grinds the inner and outer sides of the workpiece.

[0027] In this invention, the adjusting gear and adjusting ring work together. When the bolt is loosened to control the torsion of the adjusting ring, the adjusting gear meshes with the adjusting gear to drive the swing adjusting plate to swing, changing the distance between the double-sided grinding components and the axis of the drive motor. This allows the double-sided grinding components to adapt to workpieces with different hole diameters, thus expanding the range of grinding devices and eliminating the need for frequent replacement of grinding heads.

[0028] In this invention, the spiral groove, pressure rod, plate, pressure ring, and height-fixing rod on the surface of the ring cylinder are used in combination. Before the sleeve plate contacts the height-fixing rod, the pressure ring applies pressure to the plate under the push of the elastic connection with the lifting block, so that the pressure rod applies a thrust to the spiral groove, pushing the torsion plate to a state perpendicular to the axis of the drive motor. At this time, the distance difference between the two side grinding columns on the lower side of the torsion plate and the axis of the drive motor is at its maximum length, which facilitates the two side grinding columns to move to the inner and outer sides of the workpiece respectively as they move downward. After the two side grinding columns have penetrated into the inner and outer sides of the workpiece respectively, the sleeve plate, under the obstruction of the height-fixing rod, drives the pressure rod to gradually disengage from the spiral groove. The elastic connection between the outer shaft and the swing adjustment plate drives the two side grinding columns to rotate and fit against the inner and outer sides of the workpiece respectively. Attached Figure Description

[0029] Figure 1 This is a front view structural diagram in an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the lower axial structure of a portion of the structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the torsion drive component in an embodiment of the present invention; Figure 5 This is a schematic diagram of the distribution of horizontal connecting components in an embodiment of the present invention; Figure 6 This is a schematic diagram of the distribution of the swing adjustment plate and the torsion plate in an embodiment of the present invention; Figure 7 This is a schematic diagram of the distribution of the annular cylinder and the pressure bar in an embodiment of the present invention; Figure 8 This is a side view schematic diagram of a portion of the structure in an embodiment of the present invention.

[0030] Reference numerals: 1. Clamping worktable; 11. Drive worktable; 12. Clamping component; 2. Torsion drive component; 21. Drive motor; 22. Lifting block; 23. Fixed gear ring; 24. Transmission gear; 3. Horizontal connecting component; 31. Swing adjustment plate; 32. Inner shaft; 33. Adjusting gear; 34. Adjusting gear ring; 4. Double-sided grinding component; 41. Torsion plate; 42. Outer shaft; 421. Ring cylinder; 422. Spiral groove; 423. Pressure rod; 424. Flat plate; 425. Pressure ring; 426. Sleeve plate; 427. Height-fixing rod; 4271. Fixed rod; 4272. Threaded adjustment rod; 43. Inner shaft; 44. Central gear; 45. Side shaft; 46. Side gear; 47. Side grinding column; 48. Grinding end plate; 5. Detection and control component. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-8 The present invention will be described in further detail below.

[0032] This invention discloses a high-efficiency grinding device for workpieces. For example... Figures 1-3 As shown, it includes a clamping worktable 1, a torsion drive component 2, a horizontal connecting component 3, a double-sided grinding component 4, and a detection and control component 5.

[0033] The clamping worktable 1 includes a drive worktable 11 and a clamping component 12. The clamping component 12 is installed on the upper side of the drive worktable 11. The drive worktable 11 drives the clamping component 12 to rotate, and the clamping component 12 clamps the material coaxially.

[0034] In this embodiment, the clamping component 12 can coaxially fix the workpiece, and a motor that drives the clamping component 12 to rotate is installed at the bottom of the drive table 11.

[0035] The drive table 11 drives the torsion drive component 2 to move horizontally and vertically. The torsion drive component 2 is located on the upper side of the drive table 11.

[0036] In this embodiment, optionally, the drive workbench 11 consists of a table body, a vertical drive cylinder, a horizontal drive cylinder, and a moving frame.

[0037] The movable frame is fitted to the upper side of the table. The upper and lower ends of the vertical drive cylinder are connected to the torsion drive component 2 and the movable frame, respectively, driving the torsion drive component 2 to move up and down.

[0038] The two ends of the horizontal drive cylinder are connected to the movable frame and the table body respectively, driving the movable frame to move horizontally relative to the table body.

[0039] Multiple horizontal connecting parts 3 are provided, and the horizontal connecting parts 3 are installed on the circumferential surface of the drive shaft of the torsion drive part 2.

[0040] The number of double-sided grinding components 4 is the same as the number of horizontal connecting components 3. Multiple double-sided grinding components 4 are installed one-to-one with multiple horizontal connecting components 3. The double-sided grinding components 4 are composed of inner and outer grinding components. The torsion drive component 2 drives the double-sided grinding components 4 to grind the inner and outer sides of the material.

[0041] The detection control unit 5 is connected to the torsion drive unit 2, and the detection control unit 5 is controlled to drive the worktable 11 and the torsion drive unit 2.

[0042] The detection and control unit 5 consists of a detection unit and a control unit. After the detection unit detects that the clamping unit 12 clamps the workpiece, the control unit controls the drive table 11 to move the torsion drive unit 2 to the top of the workpiece. After the detection unit detects that the torsion drive unit 2 is coaxial with the clamped workpiece, the control unit controls the drive table 11 to move the torsion drive unit 2 downward, so that the grinding part of the double-sided grinding unit 4 moves to the inner and outer sides of the workpiece. Then, the control unit controls the torsion drive unit 2 to move the double-sided grinding unit 4 relative to the workpiece for grinding.

[0043] like Figure 4 In this embodiment, the torsion drive component 2 includes a drive motor 21 and a lifting block 22. The drive motor 21 is vertically mounted on one side of the lifting block 22. The lifting block 22 is connected to the drive worktable 11. The drive worktable 11 drives the lifting block 22 to move up and down and horizontally. The horizontal connecting component 3 is connected to the circumferential surface of the output end of the drive motor 21.

[0044] When the drive motor 21 starts, it can drive the double-sided grinding components 4 to rotate around the drive shaft of the drive motor 21 through the horizontal connecting component 3.

[0045] Multiple horizontal connecting parts 3 are evenly distributed in a circumferential array around the drive shaft of the drive motor 21, and multiple positions are set to increase the efficiency of grinding by increasing simultaneous grinding.

[0046] like Figures 4-8 As shown, in this embodiment, the horizontal connecting component 3 includes a swing adjustment plate 31, an inner shaft 32, an adjustment gear 33, and an adjustment gear ring 34.

[0047] The swing adjustment plate 31 is connected to the double-sided grinding component 4. One end of the swing adjustment plate 31 is fixedly sleeved on the outer surface of the inner shaft 32. The inner shaft 32 is rotatably connected to the circumferential surface of the drive shaft of the drive motor 21. The adjustment gear 33 is coaxially fixed with the inner shaft 32. The adjustment gear ring 34 is installed on the outside of the drive shaft of the drive motor 21 by bolts. After loosening the bolts, the adjustment gear ring 34 can rotate relative to the drive shaft of the drive motor 21.

[0048] In this embodiment, loosening the bolt controls the adjustment ring 34 to rotate relative to the drive shaft of the drive motor 21. The adjustment gear 33 meshes with the rotating adjustment gear 33, and drives the swing adjustment plate 31 to rotate through the inner shaft 32, thereby changing the axial distance between the double-sided grinding components 4 and the drive motor 21.

[0049] The double-sided grinding component 4 includes a torsion plate 41, an outer shaft 42, an inner shaft 43, and a side shaft 45.

[0050] The torsion plate 41 is located below the swing adjustment plate 31, and the outer shaft 42 is installed in the middle of the upper surface of the torsion plate 41. The swing adjustment plate 31 is rotatably sleeved on the outer surface of the outer shaft 42, and the outer shaft 42 is elastically torsionally connected to the swing adjustment plate 31.

[0051] Optionally, the outer shaft 42 and the swing adjustment plate 31 are elastically connected by a torsion spring, and the elastic torque has a tendency to drive the torsion plate 41 to be perpendicular to the swing adjustment plate 31.

[0052] The outer shaft 42 is coaxially rotatably sleeved on the outer surface of the inner shaft 43. The inner shaft 43 is coaxially mounted with a central gear 44. The lower end of the inner shaft 43 is coaxially mounted with a grinding end plate 48. There are two side shafts 45, which are symmetrically distributed on both sides of the inner shaft 43. The two ends of the swing adjustment plate 31 are rotatably sleeved on the outside of the side shafts 45. Both side shafts 45 are coaxially mounted with side gears 46, which mesh with the central gear 44. The lower ends of both side shafts 45 are coaxially mounted with side grinding columns 47.

[0053] As the lifting block 22 and the drive motor 21 move downward, the two side grinding columns 47 on the lower side of the torsion plate 41 are positioned on the inner and outer sides of the workpiece, respectively. At the same time, the grinding end plate 48 can contact the end face of the workpiece. As it rotates around the drive motor 21, the inner and outer sides and the end face of the workpiece are ground.

[0054] The torsion drive component 2 also includes a fixed gear ring 23 and a transmission gear 24. The upper end of the adjusting gear 33 is cylindrical. The fixed gear ring 23 is rotatably sleeved on the cylindrical part of the adjusting gear 33. The fixed gear ring 23 is fixed to the lifting block 22. The transmission gear 24 is coaxially rotatably inserted into the upper end of the inner shaft 32. The transmission gear 24 and the inner shaft 43 are driven by a chain.

[0055] After the drive motor 21 starts, the inner shaft 32 drives the transmission gear 24 to rotate and mesh on the outer ring side of the fixed gear ring 23. The transmission gear 24 drives the inner shaft 43 and the central gear 44 to rotate through the chain. Then, the two side gears 46 mesh with the central gear 44, causing the side grinding column 47 to rotate around the axis of the side gear 46. The rotation of the side grinding column 47 and the grinding end plate 48 increases the grinding effect.

[0056] An annular cylinder 421 is coaxially mounted on the upper end of the outer shaft 42. A spiral groove 422 is provided on the outer annular surface of the annular cylinder 421. A pressure rod 423 is provided in contact with the inner side of the spiral groove 422. A flat plate 424 is fixed on the upper end of the pressure rod 423. The bottom surface of the flat plate 424 is connected to the adjacent lower swing adjustment plate 31 through a vertically arranged elastic telescopic rod.

[0057] A pressure ring 425 is elastically connected to one side of the lifting block 22. The pressure ring 425 is coaxially arranged with the drive shaft of the drive motor 21. The flat plate 424 is located below the pressure ring 425. A sleeve plate 426 is fixed to one side of the pressure ring 425. The sleeve plate 426 is slidably sleeved on the outside of the lifting block 22. A height-fixing rod 427 is provided on the lower side of the sleeve plate 426. The lower end of the height-fixing rod 427 is fixed to the drive worktable 11.

[0058] Driven by the drive motor 21 and the lifting block 22, the worktable 11 moves downwards and approaches the workpiece. Before the sleeve plate 426 contacts the height-fixing rod 427, the pressure ring 425 applies pressure to the plate 424 under the push of the elastic connection with the lifting block 22, so that the pressure rod 423 applies a thrust to the spiral groove 422, pushing the torsion plate 41 to a state perpendicular to the axis of the drive motor 21. At this time, the distance difference between the two side grinding columns 47 on the lower side of the torsion plate 41 and the axis of the drive motor 21 is at its maximum length, so that the two side grinding columns 47 can move to the inner and outer sides of the workpiece respectively during the downward movement. After the two side grinding columns 47 have penetrated into the inner and outer sides of the workpiece respectively, the sleeve plate 426 drives the pressure rod 423 to gradually disengage from the spiral groove 422 under the obstruction of the height-fixing rod 427. The elastic connection between the outer shaft 42 and the swing adjustment plate 31 drives the two side grinding columns 47 to rotate and fit against the inner and outer sides of the workpiece respectively.

[0059] Second embodiment: The height-fixing rod 427 consists of a fixed rod 4271 and a threaded adjusting rod 4272. The threaded adjusting rod 4272 is coaxially threaded with the fixed rod 4271. The lower end of the fixed rod 4271 is connected to the drive worktable 11. The drive worktable 11 drives the fixed rod 4271 to move horizontally in sync with the lifting block 22.

[0060] The operator can adjust the height of the threaded adjusting rod 4272 by controlling the threaded rotation of the threaded adjusting rod 4272 relative to the lower fixed rod 4271, and control the height of the pressure rod 423 when it disengages from the spiral groove 422, thus adapting to workpieces of different heights.

[0061] The working principle is as follows: the material is coaxially clamped by the clamping component 12. After the detection and control component 5 detects that the clamping component 12 has clamped the workpiece, it controls the drive table 11 to drive the torsion drive component 2 to move to the top of the workpiece. After the detection and control component 5 detects that the torsion drive component 2 is coaxial with the clamped workpiece, it controls the drive table 11 to drive the torsion drive component 2 to move downward, so that the grinding part of the double-sided grinding component 4 moves to the inside and outside of the workpiece. Then, the detection and control component 5 controls the torsion drive component 2 to drive the double-sided grinding component 4 to move relative to the workpiece. The double-sided grinding component 4 grinds the inside and outside of the workpiece at the same time.

[0062] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency grinding device for workpieces, characterized in that, include: The clamping workbench (1) includes a drive workbench (11) and a clamping component (12). The clamping component (12) is installed on the upper side of the drive workbench (11). The drive workbench (11) drives the clamping component (12) to rotate, and the clamping component (12) clamps the material coaxially. The twisting drive component (2) is driven by the drive worktable (11) to move horizontally and vertically. The twisting drive component (2) is located on the upper side of the drive worktable (11). A horizontal connecting component (3) is provided in multiple ways, and the horizontal connecting component (3) is installed on the circumferential surface of the drive shaft of the torsion drive component (2); Double-sided grinding component (4), the number of double-sided grinding components (4) is the same as the number of horizontal connecting components (3), multiple double-sided grinding components (4) are installed one-to-one with multiple horizontal connecting components (3), and the twisting drive component (2) drives the double-sided grinding components (4) to grind the inside and outside of the material. It also includes a detection control component (5), which is connected to the torsion drive component (2) and is controlled to drive the worktable (11) and the torsion drive component (2); The torsion drive component (2) includes a drive motor (21) and a lifting block (22). The drive motor (21) is vertically installed on one side of the lifting block (22). The lifting block (22) is connected to the drive worktable (11). The drive worktable (11) drives the lifting block (22) to move up and down and horizontally. The horizontal connecting component (3) is connected to the circumferential surface of the output end of the drive motor (21). The horizontal connecting component (3) includes: A swing adjustment plate (31) is connected to the double-sided grinding component (4); The inner shaft (32) has one end of the swing adjustment plate (31) fixedly sleeved on the outer surface of the inner shaft (32), and the inner shaft (32) is rotatably connected to the circumferential surface of the drive shaft of the drive motor (21). Adjusting gear (33), which is coaxially fixed with the inner shaft (32); It also includes an adjusting gear ring (34), which is bolted to the outside of the drive shaft of the drive motor (21). After the bolt is loosened, the adjusting gear ring (34) can rotate relative to the drive shaft of the drive motor (21). The double-sided polishing component (4) includes: Torsion plate (41), the torsion plate (41) is located below the swing adjustment plate (31); The outer shaft (42) is installed in the middle position on the upper surface of the torsion plate (41). The swing adjustment plate (31) is rotatably sleeved on the outer surface of the outer shaft (42). The outer shaft (42) and the swing adjustment plate (31) are elastically torsionally connected. The inner shaft (43) is coaxially rotated and sleeved on the outer surface of the inner shaft (43). The inner shaft (43) is coaxially mounted with a central gear (44), and a grinding end plate (48) is coaxially mounted on the lower end of the inner shaft (43). Side shaft (45), two side shafts (45) are provided, the two side shafts (45) are symmetrically distributed on both sides of the inner shaft (43), the two ends of the swing adjustment plate (31) are rotatably sleeved on the outside of the side shaft (45), the two side shafts (45) are coaxially mounted with side gears (46), the two side gears (46) are meshed with the center gear (44), and the lower ends of the two side shafts (45) are coaxially mounted with side grinding columns (47).

2. The high-efficiency grinding device for workpieces according to claim 1, characterized in that: The torsion drive component (2) further includes: Fixed gear ring (23), the upper end of the adjusting gear (33) is cylindrical, the fixed gear ring (23) is rotatably sleeved on the cylindrical part of the adjusting gear (33), and the fixed gear ring (23) is fixed to the lifting block (22); The transmission gear (24) is coaxially rotatably inserted into the upper end of the inner shaft (32), and the transmission gear (24) and the inner shaft (43) are driven by a chain.

3. The high-efficiency grinding device for workpieces according to claim 1, characterized in that: An annular cylinder (421) is coaxially mounted on the upper end of the outer shaft (42). A spiral groove (422) is opened on the outer ring surface of the annular cylinder (421). A pressure rod (423) is contacted on the inner side of the spiral groove (422). A flat plate (424) is fixed on the upper end of the pressure rod (423). The bottom surface of the flat plate (424) is connected to the swing adjustment plate (31) on the adjacent lower side through a vertically set elastic telescopic rod.

4. The high-efficiency grinding device for workpieces according to claim 2, characterized in that: The lifting block (22) is elastically connected to a pressure ring (425) on one side. The pressure ring (425) is coaxially arranged with the drive shaft of the drive motor (21). The flat plate (424) is located below the pressure ring (425). A sleeve plate (426) is fixed on one side of the pressure ring (425). The sleeve plate (426) is slidably sleeved on the outside of the lifting block (22). A height-fixing rod (427) is provided on the lower side of the sleeve plate (426). The lower end of the height-fixing rod (427) is fixed to the drive worktable (11).

5. The high-efficiency grinding device for workpieces according to claim 4, characterized in that: The height-fixing rod (427) consists of a fixed rod (4271) and a threaded adjusting rod (4272). The threaded adjusting rod (4272) and the fixed rod (4271) are coaxially threaded together. The lower end of the fixed rod (4271) is connected to the drive worktable (11). The drive worktable (11) drives the fixed rod (4271) to move horizontally in sync with the lifting block (22).

6. The high-efficiency grinding device for workpieces according to claim 1, characterized in that: Multiple horizontal connecting parts (3) are evenly distributed in a circular array around the drive shaft of the drive motor (21).

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