Device for double-sided grinding

Abstract

The utility model discloses a device for double-sided grinding, which comprises a base, wherein a workbench is arranged on the upper end surface of the base; the fixing ring is arranged at the center position of the upper end face of the workbench, a lower grinding disc is fixedly installed on the bottom face of a circular concave hole of the fixing ring, a plurality of first clamping columns which are annularly distributed at equal intervals are arranged on the outer ring of the circular concave hole of the fixing ring, a driving disc is installed at the center position of the fixing ring, and the driving disc is rotationally matched with the fixing ring; a plurality of third movable rings which are annularly distributed at equal intervals are arranged on the outer ring of the upper end face of the driving disc. The movable disc is arranged between the first clamping column and the third movable ring, a plurality of annularly distributed second movable rings are arranged on the outer wall of the movable disc, and the second movable rings are engaged with the first clamping column and the third movable ring correspondingly; and the pressing disc is arranged above the fixing ring, an upper grinding disc is installed at the bottom of the pressing disc, and the grinding quality is improved on the premise that batch grinding of workpieces is achieved.

Description

Technical Field

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

[0002] Double-sided grinding device is a mechanical equipment used to grind both sides of the workpiece at the same time. It uses two grinding wheels to rotate in pairs to grind the two planes of the workpiece at the same time. During the working process, the workpiece is placed on the conveyor belt. Through the rotation of the driving wheel and the driven wheel, the workpiece moves on the conveyor belt, and the grinding wheels on both sides rotate at the same time to grind the two planes of the workpiece, thereby realizing double-sided simultaneous processing. It is widely used in the processing of various flat parts, such as molds, tools, fixtures, bearing seats, flat connectors, etc.

[0003] For example, the Chinese authorized patent "A double-sided grinding device" with announcement number CN215847327U includes a machine tool, a first main body arranged on the machine tool and having a processing cavity, two groups of processing mechanisms arranged on the machine tool along a first direction and respectively located on both sides of the first main body, a clamping mechanism arranged along a first direction perpendicular to the first main body and slidable along the first direction, a guide rail extending along the first direction, a first sliding member slidably arranged on the guide rail, a first driving mechanism for driving the first sliding member to slide, a second sliding member slidable in the up and down directions and arranged in the first sliding member, a second driving mechanism for driving the second sliding member to slide, and two groups of clamps connected to the lower end of the second sliding member; the guide rail is located directly above the sliding path of the clamping mechanism; two groups of clamps, one group is used to take out the processed workpiece in the clamping mechanism, and the other group is used to put the unprocessed workpiece into the clamping mechanism.

[0004] Although the above-mentioned prior art can realize double-sided grinding of workpieces, the overall structure is not only complicated, but also difficult to realize batch grinding of workpieces, thereby affecting the processing efficiency. Therefore, it does not meet the existing needs. In this regard, we propose a device for double-sided grinding. Summary of the invention

[0005] The purpose of the utility model is to provide a device for double-sided grinding, so as to solve the problem of how to improve the grinding quality under the premise of realizing batch grinding of workpieces proposed in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a device for double-sided grinding, comprising a base, a workbench is installed on the upper end surface of the base, and the workbench is welded and fixed to the base; and further comprising:

[0007] A fixed ring, which is arranged at the center position of the upper end surface of the workbench, a lower grinding disc is fixedly installed on the bottom surface of the circular concave hole of the fixed ring, a plurality of first engaging columns distributed in an annular shape and equidistantly arranged are arranged on the outer ring of the circular concave hole of the fixed ring, a driving disc is installed at the center position of the fixed ring, and the driving disc is rotatably matched with the fixed ring, and a plurality of third movable rings distributed in an annular shape and equidistantly arranged are arranged on the outer ring of the upper end surface of the driving disc;

[0008] A movable disk, which is arranged between the first engaging column and the third movable ring, at least five movable disks are arranged, and the movable disks are equidistantly distributed in a ring shape with the axis of the driving disk as the origin, and the outer wall of the movable disk is provided with a plurality of second movable rings distributed in a ring shape, and the second movable rings are respectively engaged with the first engaging column and the third movable ring;

[0009] A pressure plate is arranged above the fixing ring, the outer wall of the pressure plate is slidably limited with the circular concave hole of the pressure plate, and an upper grinding plate is installed at the bottom of the pressure plate.

[0010] Preferably, a reduction motor is fixedly installed at the center position of the base, and the output shaft of the reduction motor is connected to the transmission shaft at the bottom of the driving disk through a coupling.

[0011] Preferably, a fixing frame is welded and fixed to the upper end surface of the workbench, a hydraulic lifting device is fixedly installed on the upper cross frame of the fixing frame, and the movable end of the hydraulic lifting device is fixed to the center of the upper end surface of the pressure plate by bolts.

[0012] Preferably, a clamping mechanism is provided inside the movable disk, and the clamping mechanism includes a clamping hole, and the clamping hole passes through the movable disk, clamping blocks are provided on both sides of the clamping hole, and the limiting sliding block of the rear end plate of the clamping block is slidably limited with the inner cavity of the movable disk, and worm gears are rotatably installed on both sides of the movable disk, and a threaded transmission rod is fixedly provided on the shaft at one end of the worm gear, and the threaded transmission rod extends into the limiting sliding block of the clamping block and frictionally cooperates with the inner screw hole thereof, and a worm is installed on one side of the worm wheel, and the worm is adapted to the worm wheel.

[0013] Preferably, adjusting wheels are rotatably mounted on both sides of the upper end surface of the movable disk, and the shaft at the lower end of the adjusting wheel is fixed to the worm, and an octagonal hole is provided inside the adjusting wheel.

[0014] Preferably, the outer ring of the upper end surface of the pressure plate is provided with a liquid distribution ring, the interior of the upper grinding plate is provided with a liquid outlet, and the liquid outlet is communicated with the liquid distribution ring.

[0015] Preferably, a coolant storage tank is provided on one side inside the base, a coolant delivery pipe is installed on a pump provided in conjunction with the coolant storage tank, and the other end of the coolant delivery pipe is connected to the liquid distribution ring.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model realizes batch grinding of workpieces by utilizing a movable plate to revolve around the center of a circle of a driving plate as an origin. After the workpiece is fixed inside the movable plate, the hydraulic lifting device is turned on to drive the pressure plate at the lower end to descend, so that it enters the interior of the fixed ring and makes the upper grinding plate at the bottom contact with the upper end surface of the workpiece. Subsequently, the reduction motor inside the base is turned on, and its output shaft can drive the driving plate to rotate. When the third movable ring of the upper outer ring rotates, it meshes with the second movable ring on the outer wall of the movable plate. At the same time, the first engaging column inside the fixed ring remains fixed and meshes with the other side of the second movable ring. Then, during the rotation of the driving plate, multiple movable plates are realized to revolve around the driving plate. During the revolution, the upper and lower end surfaces of the workpiece respectively produce intense friction with the upper grinding plate and the lower grinding plate, thereby quickly realizing double-sided grinding of the workpiece. The double-sided grinding structure is relatively simple, and double-sided grinding of multiple workpieces can be realized by using one driving source, which not only can realize batch processing, but also effectively improves the grinding quality.

[0018] 2. The utility model adopts a flexible workpiece fixing structure. During the process of fixing the workpiece, the workpiece is placed between two clamping blocks. The staff uses a tool to rotate the adjusting wheel to drive the worm on the lower end shaft to rotate. The contact surface between the worm and the worm wheel forms a spiral friction transmission surface. The rotation of the worm drives the worm wheel to rotate, and then the shaft of the worm wheel drives the threaded transmission rod to rotate. The inner screw hole of the limit slider at the rear end of the clamping block rubs against the threaded transmission rod, and the guiding effect of the limit slider on the inner cavity of the movable disk is used to convert the rotational motion into linear motion, so that the clamping block moves toward the workpiece, thereby quickly and effectively fixing the workpiece. The clamping structure is not only convenient and easy to operate, but also has high firmness, which can avoid loosening during the grinding process.

[0019] 3. The utility model provides a liquid distribution ring on the outer side of the upper end surface of the pressure plate, and the coolant tank is arranged inside the base. During the grinding process, the matching pump is turned on to transfer the coolant to the liquid distribution ring through the coolant delivery pipe, and then the coolant is transported by the liquid distribution ring to the liquid outlet hole at the bottom of the lower grinding plate. Therefore, during the grinding process, the coolant can contact the workpiece in time to avoid the problem of overheating affecting the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall stereogram of the utility model;

[0021] Figure 2 It is a three-dimensional diagram of the movable disk transmission structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the clamping mechanism of the utility model;

[0023] Figure 4 It is a bottom view of the pressure plate of the present utility model.

[0024] In the figure: 1. base; 2. workbench; 3. fixed ring; 4. lower grinding disc; 5. first engaging column; 6. movable disc; 7. second movable ring; 8. adjusting wheel; 9. clamping mechanism; 10. fixed frame; 11. hydraulic lifting device; 12. pressure plate; 13. liquid distribution ring; 14. coolant delivery pipe; 15. driving disc; 16. third movable ring; 17. clamping block; 18. threaded transmission rod; 19. worm wheel; 20. worm; 21. upper grinding disc; 22. liquid outlet. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-4 The utility model provides an embodiment: a device for double-sided grinding, comprising a base 1, a workbench 2 is mounted on the upper end surface of the base 1, and the workbench 2 is welded and fixed to the base 1; and further comprising:

[0027] A fixed ring 3 is arranged at the center of the upper end surface of the workbench 2, a lower grinding disc 4 is fixedly installed on the bottom surface of the circular concave hole of the fixed ring 3, a plurality of first engaging columns 5 are arranged in an annular and equidistant distribution on the outer ring of the circular concave hole of the fixed ring 3, a driving disc 15 is installed at the center of the fixed ring 3, and the driving disc 15 is rotatably matched with the fixed ring 3, a plurality of third movable rings 16 are arranged in an annular and equidistant distribution on the outer ring of the upper end surface of the driving disc 15, a reduction motor is fixedly installed at the center of the base 1, and the output shaft of the reduction motor is connected to the transmission shaft at the bottom of the driving disc 15 through a coupling;

[0028] The movable disk 6 is arranged between the first engaging column 5 and the third movable ring 16. At least five movable disks 6 are provided, and the movable disks 6 are equidistantly distributed in a ring shape with the axis of the driving disk 15 as the origin. The outer wall of the movable disk 6 is provided with a plurality of second movable rings 7 distributed in a ring shape, and the second movable rings 7 are respectively engaged with the first engaging column 5 and the third movable ring 16;

[0029] The pressure plate 12 is arranged above the fixing ring 3 , and the outer wall of the pressure plate 12 is slidably limited with the circular concave hole of the pressure plate 12 , and an upper grinding plate 21 is installed at the bottom of the pressure plate 12 .

[0030] After the workpiece is fixed inside the movable disk 6, the hydraulic lifting device 11 is turned on, driving the pressure plate 12 at the lower end to descend, so that it enters the interior of the fixed ring 3 and makes the upper grinding disc 21 at the bottom contact with the upper end surface of the workpiece, and then the reduction motor inside the base 1 is turned on, and its output shaft can drive the driving disk 15 to rotate. When the third movable ring 16 of the upper outer ring rotates, it engages with the second movable ring 7 on the outer wall of the movable disk 6. At the same time, the first locking column 5 inside the fixed ring 3 remains fixed and engages with the other side of the second movable ring 7. Then, during the rotation of the driving disk 15, multiple movable disks 6 are realized to revolve around the driving disk 15. During the revolution, the upper and lower end surfaces of the workpiece respectively produce intense friction with the upper grinding disc 21 and the lower grinding disc 4, thereby quickly realizing double-sided grinding of the workpiece.

[0031] See also Figure 1 A fixing frame 10 is welded and fixed to the upper end surface of the workbench 2, and a hydraulic lifting device 11 is fixedly installed on the upper cross frame of the fixing frame 10, and the movable end of the hydraulic lifting device 11 is fixed to the center of the upper end surface of the pressure plate 12 by bolts to achieve height adjustment of the pressure plate 12.

[0032] See also Figure 2 and Figure 3 A clamping mechanism 9 is provided inside the movable disk 6, and the clamping mechanism 9 includes a clamping hole, and the clamping hole passes through the movable disk 6. Clamping blocks 17 are provided on both sides of the clamping hole, and the limiting slider of the rear end plate of the clamping block 17 is slidably limited with the inner cavity of the movable disk 6. A worm gear 19 is rotatably installed on both sides of the movable disk 6, and a threaded transmission rod 18 is fixedly provided on the shaft at one end of the worm gear 19. The threaded transmission rod 18 extends into the limiting slider of the clamping block 17 and frictionally cooperates with the inner screw hole thereof. A worm 20 is installed on one side of the worm gear 19, and the worm 20 is adapted to the worm gear 19. The clamping structure is not only convenient and easy to operate, but also has high firmness, thereby avoiding loosening during the grinding process.

[0033] See also Figure 2 The adjusting wheels 8 are rotatably mounted on both sides of the upper end surface of the movable disk 6, and the shaft at the lower end of the adjusting wheel 8 is fixed to the worm 20. An octagonal hole is provided inside the adjusting wheel 8 for easy rotation using a tool.

[0034] See also Figure 1 and Figure 4A liquid distribution ring 13 is provided on the outer ring of the upper end surface of the pressure plate 12, a liquid outlet 22 is provided inside the upper grinding disc 21, and the liquid outlet 22 is communicated with the liquid distribution ring 13, a coolant storage tank is provided on one side inside the base 1, and a coolant delivery pipe 14 is installed on the pump provided in conjunction with the coolant storage tank, and the other end of the coolant delivery pipe 14 is communicated with the liquid distribution ring 13. During the grinding process, the matching pump is turned on to transfer the coolant to the liquid distribution ring 13 through the coolant delivery pipe 14, and then the coolant is transported from the liquid distribution ring 13 to the liquid outlet 22 at the bottom of the upper grinding disc 21, so that during the grinding process, the coolant can contact the workpiece in time to avoid the problem of overheating affecting the grinding effect.

[0035] Working principle: When fixing the workpiece, place it between the two clamping blocks 17. The staff uses a tool to rotate the adjusting wheel 8 to drive the worm 20 on the lower end shaft to rotate. The contact surface between the worm 20 and the worm wheel 19 forms a spiral friction transmission surface. The rotation of the worm 20 drives the worm wheel 19 to rotate, and then the axis of the worm wheel 19 drives the threaded transmission rod 18 to rotate. The inner screw hole of the limit slider at the rear end of the clamping block 17 rubs against the threaded transmission rod 18, and cooperates with the guiding effect of the inner cavity of the movable disk 6 on the limit slider to convert the rotational motion into linear motion, so that the clamping block 17 moves toward the workpiece, thereby quickly achieving effective fixation of the workpiece.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A device for double-sided grinding, comprising a base (1), a workbench (2) being mounted on the upper end surface of the base (1), and the workbench (2) being fixed to the base (1) by welding; Features: Also includes: A fixed ring (3) is arranged at the center position of the upper end surface of the workbench (2); a lower grinding disc (4) is fixedly mounted on the bottom surface of the circular concave hole of the fixed ring (3); a plurality of first engaging columns (5) are arranged in an annular shape and are equidistantly distributed on the outer ring of the circular concave hole of the fixed ring (3); a driving disc (15) is installed at the center position of the fixed ring (3), and the driving disc (15) is rotatably matched with the fixed ring (3); and a plurality of third movable rings (16) are arranged in an annular shape and are equidistantly distributed on the outer ring of the upper end surface of the driving disc (15); A movable disk (6) is arranged between the first engaging column (5) and the third movable ring (16), at least five movable disks (6) are provided, and the movable disks (6) are equidistantly distributed in a ring shape with the axis of the driving disk (15) as the origin, and the outer wall of the movable disk (6) is provided with a plurality of second movable rings (7) distributed in a ring shape, and the second movable rings (7) are respectively meshed with the first engaging column (5) and the third movable ring (16); A pressure plate (12) is arranged above the fixing ring (3), the outer wall of the pressure plate (12) and the circular concave hole of the pressure plate (12) are slidably limited, and an upper grinding plate (21) is installed at the bottom of the pressure plate (12).

2. A device for double-sided grinding according to claim 1, characterized in that: A reduction motor is fixedly mounted at the center of the base (1), and the output shaft of the reduction motor is connected to the transmission shaft at the bottom of the drive disc (15) via a coupling.

3. The device for double-sided grinding according to claim 1, characterized in that: A fixing frame (10) is welded and fixed to the upper end surface of the workbench (2), a hydraulic lifting device (11) is fixedly mounted on the upper cross frame of the fixing frame (10), and a movable end of the hydraulic lifting device (11) is fixed to the center of the upper end surface of the pressure plate (12) by bolts.

4. The device for double-sided grinding according to claim 1, characterized in that: A clamping mechanism (9) is arranged inside the movable disk (6), the clamping mechanism (9) comprises a clamping hole, and the clamping hole passes through the movable disk (6), clamping blocks (17) are arranged on both sides of the clamping hole, and a limiting slider of a rear end plate of the clamping block (17) is slidably limited with the inner cavity of the movable disk (6), a worm gear (19) is rotatably mounted on both sides of the movable disk (6), a threaded transmission rod (18) is fixedly arranged on the shaft at one end of the worm gear (19), the threaded transmission rod (18) extends into the limiting slider of the clamping block (17) and is frictionally matched with the inner screw hole thereof, a worm (20) is mounted on one side of the worm gear (19), and the worm (20) is adapted to the worm gear (19).

5. The device for double-sided grinding according to claim 4, characterized in that: Adjusting wheels (8) are rotatably mounted on both sides of the upper end surface of the movable disk (6), and the shaft at the lower end of the adjusting wheel (8) is fixed to the worm (20), and an octagonal hole is provided inside the adjusting wheel (8).

6. The device for double-sided grinding according to claim 1, characterized in that: The outer ring of the upper end surface of the pressure plate (12) is provided with a liquid distribution ring (13), and the interior of the upper grinding plate (21) is provided with a liquid outlet hole (22), and the liquid outlet hole (22) is in communication with the liquid distribution ring (13).

7. The device for double-sided grinding according to claim 6, characterized in that: A coolant storage tank is provided on one side of the interior of the base (1); a coolant delivery pipe (14) is installed on a pump provided in conjunction with the coolant storage tank, and the other end of the coolant delivery pipe (14) is in communication with the liquid distribution ring (13).

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