Metal plate fillet grinding equipment

Abstract

The utility model belongs to the technical field of sheet metal production and processing, and particularly relates to sheet metal fillet polishing equipment which comprises a vertical beam and a positioning clamp workbench, and further comprises a cross beam arranged on the vertical beam in a sliding mode and a manual winch fixed to the vertical beam. A machine head assembly sliding front and back is arranged on the longitudinal beam, a workpiece is fixed to the positioning clamp workbench, a direct-current speed regulating motor is adopted for driving abrasive belts, driven wheels of the two abrasive belts are installed on a connecting rod, the motor drives the abrasive belts and meanwhile decelerates through a speed reducer, and power is transmitted to a cam connecting rod at the same time. The cam connecting rod moves to drive the connecting rod of the driven wheel to swing and rotate left and right around a track defined by the arc-shaped copper block and the bearing, the circle center of the movement track of the abrasive belt is the circle center of the R arc of the face to be machined, and therefore in the movement process of the abrasive belt, the right angle and the welding seam of the sheet metal part are ground into the needed R arc size.

Description

Technical Field

[0001] The utility model belongs to the technical field of sheet metal production and processing, and specifically relates to sheet metal fillet grinding equipment. Background Art

[0002] In the current sheet metal production process, the right angles and welds produced after sheet metal welding need to be polished. In order to maximize the aesthetic effect, the size of the polished area needs to be as close to the R arc size of the bend as possible, and a straight line should be kept as straight as possible without any bends. Most of the work is done manually by workers, and the grinding size cannot be unified. It all depends on the workers' experience and feel. In addition, the labor intensity of the workers is also very high, and the working environment is extremely poor. There are also corresponding equipment for grinding. Compared with this equipment, the original solution is not conducive to operation for heavier and larger products. The original product structure is also relatively complex, the operation is also relatively complex, and it does not have the function of changing to other processing procedures. Utility Model Content

[0003] To solve the problems raised in the above background technology. The utility model provides a sheet metal fillet grinding device, including a vertical beam and a positioning fixture workbench, and also includes a crossbeam slidably arranged on the vertical beam, and a manual winch fixed on the vertical beam, the crossbeam is provided with a longitudinal beam that slides left and right, the longitudinal beam is provided with a head assembly that slides forward and backward, and the positioning fixture workbench is fixed with a workpiece;

[0004] The machine head assembly includes a front cover shell, a vertical plate, a rear cover shell, a wedge wheel A, a wedge wheel plate B, a wedge belt, a passive wheel connecting plate, a right-angle positioning plate, a DC speed regulating motor, a swing angle transmission shaft, a transmission shaft, a bearing seat, a bearing plate, a grinding belt driving wheel, a grinding belt driven wheel, a grinding belt tensioning wheel, a grinding belt, a reducer, a tensioning wheel rod, a grinding wheel connecting rod limit bearing, a grinding belt tensioning wheel tension spring, a grinding wheel connecting rod, a copper semicircular arc plate, a first wedge wheel A, a rounded corner grinding module cam plate, a cam connecting rod, a polytetrafluoroethylene plate, a clamping plate, a positioning threaded pin and a right-angle positioning mold.

[0005] As a sheet metal fillet grinding device of the utility model, preferably, the DC speed regulating motor is installed on the vertical plate, the DC speed regulating motor drives the wedge wheel A to rotate, and the power is transmitted to the sanding belt driving wheel through the transmission shaft, thereby driving the movement of the sanding belt.

[0006] As a sheet metal fillet grinding device of the utility model, preferably, the sanding belt driving wheel, the sanding belt driven wheel and the sanding belt tensioning wheel constitute a movement system of the sanding belt, wherein the sanding belt tensioning wheel always maintains a certain tension of the sanding belt under the action of the sanding belt tensioning wheel tension spring.

[0007] As a sheet metal fillet grinding device of the utility model, preferably, in the mechanism composed of the bearing plate and the vertical plate bearing, power is transmitted to the swing angle transmission shaft by the transmission shaft, the wedge wheel A, the wedge wheel plate B and the wedge belt.

[0008] As a sheet metal rounded corner grinding device of the utility model, preferably, the swing angle transmission shaft drives the cam plate of the rounded corner grinding module to rotate, and the rotation of the cam plate of the rounded corner grinding module drives the cam connecting rod to move, and the other end of the cam connecting rod is connected to the grinding wheel connecting rod.

[0009] As a sheet metal fillet grinding device of the utility model, preferably, a sanding belt driven wheel is installed at both ends of the grinding wheel connecting rod, and the other end of the sanding belt driven wheel is connected to the passive wheel connecting plate.

[0010] As a sheet metal fillet grinding device of the utility model, preferably, a grinding wheel connecting rod limiting bearing is installed on the grinding wheel connecting rod, and the grinding wheel connecting rod limiting bearing moves along the groove in the semicircular groove of the vertical plate, and the grinding wheel connecting rod itself has a semicircular arc, and this arc is consistent with the arc of the copper semicircular arc plate, so that the grinding wheel connecting rod can swing around the center of the circle under the joint restriction of the grinding wheel connecting rod limiting bearing and the copper semicircular arc plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. A DC speed-regulating motor is used to drive the sanding belt. The driven wheels of the two sanding belts are installed on a connecting rod. The motor drives the sanding belt and is decelerated by the reducer. The power is transmitted to the cam connecting rod at the same time. The movement of the cam connecting rod drives the connecting rod of the driven wheel to swing left and right around the track defined by the arc-shaped copper block and the bearing. The center of the movement trajectory of the sanding belt is the center of the R arc of the surface to be processed. Therefore, during the movement of the sanding belt, the right angles and welds of the sheet metal parts are polished into the required R arc size;

[0013] 2. The power of a speed-controlled motor drives the movement of the sanding belt, and also drives the sanding belt to make a circular motion around a certain point. The sanding belt speed and the frequency of circular grinding swing can be adjusted by adjusting the motor speed. The faster the sanding belt speed, the faster the swing speed, thereby improving the grinding efficiency;

[0014] 3. The diameter of the sanding belt motion trajectory circle can be adjusted by adjusting the size of the sanding belt driven wheel, thereby adjusting the R arc size of the processed surface;

[0015] 4. Some adjustments to the mechanism can cancel the swing of the sanding belt, allowing the mechanism to grind the plane. The positioning block of the mechanism can quickly place the workpiece at the center of the swing of the sanding belt;

[0016] 5. Use double columns and tracks, one horizontal beam and track, and one longitudinal beam and track to realize the spatial XYZ movement of the processing tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the head assembly structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the head assembly structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the exploded structure of the head assembly of the utility model;

[0023] Figure 6 This is a front view structural diagram of the head assembly of the utility model;

[0024] Figure 7 It is a schematic diagram of arc grinding of the utility model;

[0025] In the figure:

[0026] 1. Vertical beam; 2. Positioning fixture workbench; 3. Horizontal beam; 4. Manual capstan; 5. Longitudinal beam; 6. Machine head assembly; 7. Front cover; 8. Vertical plate; 9. Rear cover; 10. Wedge wheel A; 11. Wedge wheel plate B; 12. Passive wheel connecting plate; 13. Right-angle positioning plate; 14. DC speed regulating motor; 15. Swing angle transmission shaft; 16. Transmission shaft; 17. Bearing seat; 18. Bearing plate; 19. Abrasive belt driving wheel; 20. Abrasive belt driven wheel Wheel; 21. Abrasive belt tensioning wheel; 22. Reducer; 23. Tensioning wheel rod; 24. Grinding wheel connecting rod limit bearing; 25. Abrasive belt tensioning wheel tension spring; 26. Grinding wheel connecting rod; 27. Copper semicircular arc plate; 28. First wedge wheel A; 29. ​​Round corner grinding module cam plate; 30. Cam connecting rod; 31. Polytetrafluoroethylene plate; 32. Pressing plate; 33. Positioning threaded pin; 34. Right-angle positioning mold; 35. Abrasive belt; 36. Wedge belt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1 As shown;

[0030] A sheet metal fillet grinding device comprises a vertical beam 1 and a positioning fixture workbench 2.

[0031] In this implementation scheme: In order to solve the technical problems existing in this prior art, as disclosed in the background technology above, "In the current sheet metal production process, the right angles and welds produced after sheet metal welding need to be ground and polished. In order to maximize the aesthetic effect, the size of the ground and polished area needs to be as close as possible to the R arc size of the bend, and a straight line should also be kept as straight as possible without any crooked curves. Most of them are manually operated by workers, and the grinding size cannot be unified. It all depends on the workers' experience and feel. In addition, the labor intensity of the workers is also very high, and the working environment is extremely poor. Corresponding equipment is also used for grinding. Compared with this equipment, the original solution is not conducive to operation for heavier and larger products. The original product structure is also relatively complex, the operation is also relatively complex, and it does not have the function of switching to other processing procedures." Combined with actual use, this problem is obviously a real problem that exists and is relatively difficult to solve. In view of this, in order to solve this technical problem, a sheet metal fillet grinding device is provided.

[0032] like Figure 1-7 As shown in the figure;

[0033] In combination with the above content, it also includes a crossbeam 3 slidably arranged on the vertical beam 1, and a manual winch 4 fixed on the vertical beam 1, the crossbeam 3 is provided with a longitudinal beam 5 that slides left and right, the longitudinal beam 5 is provided with a head assembly 6 that slides forward and backward, and a workpiece is fixed on the positioning fixture workbench 2;

[0034] The head assembly 6 includes a front cover shell 7, a vertical plate 8, a rear cover shell 9, a wedge wheel A10, a wedge wheel plate B11, a wedge belt 36, a passive wheel connecting plate 12, a right-angle positioning plate 13, a DC speed regulating motor 14, a swing angle transmission shaft 15, a transmission shaft 16, a bearing seat 17, a bearing plate 18, a grinding belt driving wheel 19, a grinding belt driven wheel 20, a grinding belt tensioning wheel 21, a grinding belt 35, a reducer 22, a tensioning wheel rod 23, a grinding wheel connecting rod limit bearing 24, a grinding belt tensioning wheel tension spring 25, a grinding wheel connecting rod 26, a copper semicircular arc plate 27, a first wedge wheel A28, a rounded corner grinding module cam plate 29, a cam connecting rod 30, a polytetrafluoroethylene plate 31, a clamping plate 32, a positioning threaded pin 33 and a right-angle positioning mold 34.

[0035] The positioning threaded pin and the right-angle positioning mold ensure that the corners of the workpiece are in the circular position shown in the figure above; in the mechanism composed of the vertical beam, the horizontal beam and the machine head, the rounded corner grinding module can move along the direction of the guide rail, thereby ensuring the linearity of the workpiece being ground, and the module can be rotated 90 degrees under the action of the machine head assembly to adjust the grinding direction. The workpiece is reliably positioned by the positioning fixture assembly.

[0036] In an optional embodiment, the DC speed regulating motor 14 is installed on the vertical plate 8, and the DC speed regulating motor 14 drives the wedge wheel A10 to rotate, and the power is transmitted to the sanding belt driving wheel 19 through the transmission shaft 16, thereby driving the movement of the sanding belt 35.

[0037] In an optional embodiment, the sanding belt driving wheel 19 , the sanding belt driven wheel 20 and the sanding belt tensioning wheel 21 constitute a movement system of the sanding belt 35 , wherein the sanding belt tensioning wheel 21 always maintains a certain tension of the sanding belt 35 under the action of the sanding belt tensioning wheel tension spring 25 .

[0038] In an optional embodiment, in the mechanism composed of the bearing plate 18 and the vertical plate bearing, power is transmitted from the transmission shaft 16, the wedge wheel A10, the wedge wheel plate B11 and the wedge belt 36 to the swing angle transmission shaft 15.

[0039] In an optional embodiment, the swing angle transmission shaft 15 drives the rounded corner grinding module cam plate 29 to rotate, and the rotation of the rounded corner grinding module cam plate 29 drives the cam connecting rod 30 to move, and the other end of the cam connecting rod 30 is connected to the grinding wheel connecting rod 26.

[0040] In an optional embodiment, a grinding belt driven wheel 20 is installed at both ends of the grinding wheel connecting rod 26 , and the other end of the grinding belt driven wheel 20 is connected to the driven wheel connecting plate 12 .

[0041] In an optional embodiment, a grinding wheel connecting rod limit bearing 24 is installed on the grinding wheel connecting rod 26, and the grinding wheel connecting rod limit bearing 24 moves along the groove in the semicircular groove of the vertical plate 8. The grinding wheel connecting rod 26 itself has a semicircular curvature, and this curvature is consistent with the curvature of the copper semicircular arc plate 27, so that the grinding wheel connecting rod 26 can swing around the center of the circle under the joint restriction of the grinding wheel connecting rod limit bearing 24 and the copper semicircular arc plate 27.

[0042] Working principle of this utility model:

[0043] 1. A DC speed-regulating motor is used to drive the sanding belt. The driven wheels of the two sanding belts are installed on a connecting rod. The motor drives the sanding belt and is decelerated by the reducer. The power is transmitted to the cam connecting rod at the same time. The movement of the cam connecting rod drives the connecting rod of the driven wheel to swing left and right around the track defined by the arc-shaped copper block and the bearing. The center of the movement trajectory of the sanding belt is the center of the R arc of the surface to be processed. Therefore, during the movement of the sanding belt, the right angles and welds of the sheet metal parts are polished into the required R arc size;

[0044] 2. The power of a speed-controlled motor drives the movement of the sanding belt, and also drives the sanding belt to orbit around a certain point. The sanding belt speed and the frequency of circular grinding swing can be adjusted by adjusting the motor speed. The faster the sanding belt speed, the faster the swing speed, thereby improving the grinding efficiency;

[0045] 3. The diameter of the sanding belt motion trajectory circle can be adjusted by adjusting the size of the sanding belt driven wheel, thereby adjusting the R arc size of the processed surface;

[0046] 4. Some adjustments to the mechanism can cancel the swing of the sanding belt, allowing the mechanism to grind the plane. The positioning block of the mechanism can quickly place the workpiece at the center of the swing of the sanding belt;

[0047] 5. Use double columns and tracks, one horizontal beam and track, and one longitudinal beam and track to realize the spatial XYZ movement of the processing tool.

[0048] Finally, it should be noted that 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 above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sheet metal fillet grinding device, comprising a vertical beam (1) and a positioning fixture workbench (2), characterized in that: It also comprises a crossbeam (3) slidably arranged on the vertical beam (1), and a manual winch (4) fixed on the vertical beam (1); a longitudinal beam (5) slidable left and right is arranged on the crossbeam (3); a head assembly (6) slidable front and back is arranged on the longitudinal beam (5); and a workpiece is fixed on the positioning fixture workbench (2); The machine head assembly (6) comprises a front cover (7), a vertical plate (8), a rear cover (9), a wedge wheel A (10), a wedge wheel plate B (11), a wedge belt (36), a driven wheel connecting plate (12), a right-angle positioning plate (13), a DC speed regulating motor (14), a swing angle transmission shaft (15), a transmission shaft (16), a bearing seat (17), a bearing plate (18), a sanding belt driving wheel (19), a sanding belt driven wheel (20), a sanding belt tensioning wheel (21), a sanding belt (35), a speed reducer (22), a tensioning wheel rod (23), a grinding wheel connecting rod limit bearing (24), a sanding belt tensioning wheel tension spring (25), a grinding wheel connecting rod (26), a copper semicircular arc plate (27), a first wedge wheel A (28), a rounded corner grinding module cam plate (29), a cam connecting rod (30), a polytetrafluoroethylene plate (31), a pressing plate (32), a positioning threaded pin (33) and a right-angle positioning mold (34).

2. The sheet metal fillet grinding device according to claim 1, characterized in that: The DC speed regulating motor (14) is mounted on the vertical plate (8), and the DC speed regulating motor (14) drives the wedge wheel A (10) to rotate, and the power is transmitted to the sanding belt driving wheel (19) through the transmission shaft (16), thereby driving the sanding belt (35) to move.

3. The sheet metal fillet grinding device according to claim 1, characterized in that: The sanding belt driving wheel (19), the sanding belt driven wheel (20) and the sanding belt tensioning wheel (21) form a movement system of the sanding belt (35), wherein the sanding belt tensioning wheel (21) always maintains a certain tension of the sanding belt (35) under the action of the sanding belt tensioning wheel tension spring (25).

4. The sheet metal fillet grinding device according to claim 1, characterized in that: In the mechanism composed of the bearing plate (18) and the vertical plate bearing, power is transmitted to the swing angle transmission shaft (15) through the transmission shaft (16), the wedge wheel A (10), the wedge wheel plate B (11) and the wedge belt (36).

5. The sheet metal fillet grinding device according to claim 1, characterized in that: The swing angle transmission shaft (15) drives the cam plate (29) of the rounded corner grinding module to rotate, and the rotation of the cam plate (29) of the rounded corner grinding module drives the cam connecting rod (30) to move, and the other end of the cam connecting rod (30) is connected to the grinding wheel connecting rod (26).

6. The sheet metal fillet grinding device according to claim 1, characterized in that: A sand belt driven wheel (20) is installed at both ends of the grinding wheel connecting rod (26), and the other end of the sand belt driven wheel (20) is connected to the driven wheel connecting plate (12).

7. The sheet metal fillet grinding device according to claim 1, characterized in that: The grinding wheel connecting rod (26) is provided with a grinding wheel connecting rod limiting bearing (24), and the grinding wheel connecting rod limiting bearing (24) moves along the groove in the semicircular groove of the vertical plate (8). The grinding wheel connecting rod (26) itself has a semicircular arc, and the arc is consistent with the arc of the copper semicircular arc plate (27), so that the grinding wheel connecting rod (26) can swing around the center of the circle under the joint restriction of the grinding wheel connecting rod limiting bearing (24) and the copper semicircular arc plate (27).

Images