A swing grinding apparatus for double-side grinding R-edges

Abstract

The utility model relates to a kind of double-face R round edge swing grinding equipment, including equipment mainframe, sheet metal workpiece, the equipment mainframe is separately provided with transport power mechanism, upper swing grinding head subassembly, lower swing grinding head subassembly, auxiliary grinding head subassembly.Because upper swing grinding head subassembly includes swing mechanism device, crank mechanism device, connecting rod mechanism device.When crank mechanism device and connecting rod mechanism device drive long cross arm rod to rotate with swing pivot, the short cross arm rod and swing box cross arm support also rotate the same angle synchronously, grinding head wheel device also rotates angle along with swing box cross arm support, thus realize the angle change of grinding wheel to the sheet metal workpiece R round edge being processed.Change the distance from this intersection to the sheet metal workpiece to be processed two side lines, that is, change the size of R round edge.Thus, reach the function of changing the processing surface R value size and R round edge radian size of the sheet metal workpiece being processed.

Description

[Technical Field]

[0001] This utility model relates to the technical field of processing and production equipment, and in particular to a swing grinding device for double-sided grinding of R-shaped edges for deep processing of sheet metal. [Background Technology]

[0002] In existing technologies, most of the slabs are made of sintered stone, stone, or glass. For deep processing of the peripheral edge radius of the slabs, the peripheral edge radius is generally ground and polished using an inner radius-forming wheel to achieve the desired radius reduction.

[0003] In use, the sheet material to be processed is first fixed in the designated position. Then, the grinding forming wheel grinds the edges around the fixed sheet material. Following this, the material undergoes rough grinding, semi-fine grinding, and precision grinding processes to achieve the predetermined radius requirement.

[0004] During the aforementioned grinding and polishing process, because the grinding and polishing direction is consistent with the feed direction of the sheet metal workpiece, it is easy for hard spots remaining on the surface of the sheet metal workpiece or the grinding wheel to cause brush marks that cannot be removed, resulting in an unsatisfactory R-shaped edge appearance. Furthermore, uneven wear and deformation of the R-shaped edge surface inside the forming wheel cause deformation of the R-shaped edge surface machined on the sheet metal workpiece, failing to meet processing requirements. Additionally, due to limitations in the specifications of the internal R-shaped grinding wheel, the R value cannot be arbitrarily determined. [Utility Model Content]

[0005] In view of this, the technical problem to be solved by this utility model is to provide a double-sided oscillating grinding device for grinding the R-shaped edge, which can change the size of the R-value of the processing surface and the size of the R-shaped edge curvature of the sheet metal workpiece being processed.

[0006] To address the aforementioned technical problems, this utility model provides a double-sided oscillating grinding device for grinding rounded edges. The device includes a main frame placed directly on the ground and a sheet metal workpiece. The main frame is equipped with a transport power mechanism, an upper oscillating grinding head assembly, a lower oscillating grinding head assembly, and an auxiliary grinding head assembly. The transport power mechanism is located on one side of the upper and lower oscillating grinding head assemblies, which are arranged parallel to each other and spaced apart. The auxiliary grinding head assembly is located on one side of the upper oscillating grinding head assembly.

[0007] The transport power mechanism includes a conveying power device installed at one end of the main equipment frame, a lower beam belt assembly and an upper beam belt assembly installed on the main equipment frame and connected to the conveying power device, the upper beam belt assembly being located on the upper end face of the lower beam belt assembly, and an alignment belt assembly installed at the output ends of the lower beam belt assembly and the upper beam belt assembly, one end of which is the input end of the sheet material, i.e., the feeding port;

[0008] The upper beam belt assembly includes a conveying power mechanism installed at one end of the main equipment frame, an upper beam drive pulley connected to the conveying power mechanism, an upper beam driven pulley installed at the other end of the main equipment frame, and an upper beam belt connecting the upper beam drive pulley and the upper beam driven pulley together. The conveying power mechanism provides power to the upper beam belt assembly and the lower beam belt assembly. The power supply device is a dual-worm gear reducer, which has two shafts at its output end. The shafts rotate at the same speed but in opposite directions. The difference between the upper beam belt assembly and the lower beam belt assembly is that the upper beam belt assembly has a spring clip assembly installed inside, while the lower beam belt assembly is a quasi-rigid component, i.e., a reference component.

[0009] The structure of the upper swing grinding head assembly is the same as that of the lower swing grinding head assembly; the upper swing grinding head assembly includes a mechanism bracket consisting of a swing bearing plate arranged longitudinally and a bearing support frame installed on the top of the swing bearing plate, which is placed directly on the bottom surface; a crank mechanism device is set at the upper end of the bearing support frame; a swing mechanism device is set at the lower end of the bearing support frame; a connecting rod mechanism device is used to hinge the crank mechanism device and the swing mechanism device together; and a swing adjustment distance mechanism is set on the outside of the swing bearing plate.

[0010] The crank mechanism device includes two crank mechanisms, a power source device disposed between the two crank mechanisms, and crank rotation shafts disposed at both ends of the power source device and respectively connected to the crank mechanisms.

[0011] The swing mechanism device includes a swing mechanism disposed inside the two swing frame support plates, and a swing frame installed between the two swing mechanisms;

[0012] The linkage mechanism includes two linkages respectively located at the intersection of the crank mechanism and the swing mechanism;

[0013] In use, the power source device starts the crank rotating shaft to rotate, which drives the crank mechanism set at both ends of the crank rotating shaft to rotate. The crank mechanism drives the connecting rod mechanism to swing, the connecting rod mechanism drives the swing mechanism to swing, the swing mechanism drives the swing frame set on the swing mechanism to swing, and the swing frame drives the grinding wheel device to perform a back-and-forth swinging motion.

[0014] The grinding wheel device contacts one right-angled edge and two edge surfaces of the workpiece being processed when it swings, thus realizing the grinding action. During grinding, the right-angled edge of the workpiece being processed is placed at the inherent center point of the swing mechanism, and the grinding wheel device swings back and forth around the workpiece.

[0015] The swing trajectory is as follows: with the workpiece being processed as the center end, the inherent swing center point of the swing mechanism is adjusted to coincide with the R center point of the R circle edge of the workpiece. The grinding wheel inside the grinding head wheel device swings around this point, with the distance between the center end and the grinding head wheel device as the swing radius, and the swing amplitude of the swing frame as the swing arc.

[0016] Further defined, the power source device includes an RV reducer module installed on the back of the support frame, a power motor installed on the RV reducer module, a drive bearing housing connected to the power motor, and a driven bearing housing connected to the crank shaft and cooperating with the drive bearing housing.

[0017] The crank mechanism includes crank fixed bearings installed at both ends of the crank rotating shaft, crank pads installed on the crank fixed bearings, crank rotating disks installed on the crank pads, and eccentric holes located off-center on the crank rotating disks.

[0018] Further defined, the swing mechanism includes a long horizontal arm installed on the upper inner side of the swing frame support plate, a short horizontal arm installed on the lower inner side of the swing frame support plate, a long vertical arm installed on the front inner side of the swing frame support plate, and a short vertical arm installed on the rear inner side of the swing frame support plate; a lower swing pivot installed at the intersection of the lower end of the long vertical arm and the front end of the short horizontal arm, and an upper swing pivot installed at the intersection of the upper end of the long vertical arm and the front end of the long horizontal arm, which hinges the connecting rod, the long vertical arm, and the long horizontal arm together; the upper ends of the long vertical arm and the short vertical arm are respectively hinged to the two ends of the long horizontal arm; one end of the short horizontal arm is fixed to the top of the swing frame support plate, and the other end of the short horizontal arm is hinged to the lower end of the long vertical arm; the short horizontal arm with the long vertical arm is installed swings along the end of the short horizontal arm fixed to the swing frame support plate as the center end.

[0019] Further defined, the swing frame includes a swing box crossarm bracket directly mounted on the lower end of the short crossarms on both sides, multiple longitudinally arranged swing guide rails mounted on the swing box crossarm bracket, a guide rail slide plate that can move back and forth mounted on the multiple swing guide rails, and multiple grinding wheel devices mounted on the guide rail slide plate; the grinding wheel device includes a grinding head motor directly fixedly mounted on the guide rail slide plate, and a grinding wheel mounted on the grinding head motor.

[0020] Further defined, the linkage mechanism includes a first linkage shaft directly fixedly installed inside the eccentric hole, a first linkage shaft seat installed around the first linkage shaft, a connecting rod connected to the first linkage shaft seat, a second linkage shaft hinged to the upper end of the long vertical arm, and a second linkage shaft seat installed around the second linkage shaft and connected to the connecting rod.

[0021] Further defined, the swing adjustment distance mechanism includes a vertical adjustment structure directly mounted on the swing support plate, and a front-back adjustment structure mounted on the vertical adjustment structure; the vertical adjustment structure includes a vertical mounting plate directly mounted on the upper end of the swing support plate, a longitudinal adjustment motor mounted on the vertical mounting plate, a vertical adjustment bearing box module connected to the longitudinal adjustment motor mounted on the back of the vertical mounting plate, a vertical adjustment lead screw connected to the vertical adjustment bearing box module, a vertical adjustment mounting plate mounted on the vertical adjustment lead screw, a vertical adjustment nut mounted on the vertical adjustment lead screw, and a horizontally arranged vertical adjustment guide rail mounted on the lower end of the vertical adjustment mounting plate; the front-back adjustment structure includes a front-back adjustment plate directly mounted on the vertical adjustment mounting plate, front-back adjustment guide rails mounted at the upper and lower ends of the front-back adjustment plate, and a front-back adjustment lead screw mounted on one side at the center position of the front-back adjustment plate.

[0022] The beneficial technical effects of this utility model are as follows: because a swing mechanism is provided on the inner wall of the support frame, the swing mechanism includes a swing mechanism provided on the inner side of the two swing frame support plates, a swing frame installed between the two swing mechanisms, and a plurality of grinding wheel devices installed on the swing frame.

[0023] The swing frame includes a swing box crossarm bracket directly mounted on the lower end of the short crossarms on both sides, multiple longitudinally arranged swing guide rails mounted on the swing box crossarm bracket, a guide rail slide plate that can move back and forth mounted on the multiple swing guide rails, and multiple grinding head wheel devices mounted on the guide rail slide plate; the grinding head wheel device includes a grinding head motor directly fixedly mounted on the guide rail slide plate, and a grinding wheel mounted on the grinding head motor.

[0024] In the structure of this application, a parallelogram-shaped swing mechanism is formed by hinges between a long horizontal arm and a short horizontal arm arranged laterally, and a long vertical arm and a short vertical arm arranged longitudinally. One side of the long horizontal arm and the short horizontal arm is fixed to the swing bearing plate through an upper swing pivot and a lower swing pivot. The long vertical arm and the short vertical arm are movably connected to the long horizontal arm and the short horizontal arm, and the swing box horizontal arm support is set on the long vertical arm or the short vertical arm.

[0025] When the crank mechanism and connecting rod mechanism drive the long cross arm to rotate around the swing shaft, the short cross arm and the swing box cross arm support will also rotate synchronously by the same angle. The grinding wheel device will also rotate with the swing box cross arm support, thereby changing the angle of the grinding wheel on the R-shaped edge of the sheet metal workpiece being processed.

[0026] The center line connecting the upper and lower swing shafts on the swing support plate, and extending a certain distance from the center line connecting the two shafts of the swing box's cross arm support, forms an intersection point. This intersection point does not change with the rotation of the swing box's cross arm support. The center of the R-shaped outer edge of the sheet metal workpiece is placed at this intersection point. The swing frame drives the grinding wheel to move around this intersection point, so the movement trajectory of the grinding wheel's working surface falls on the outer circle of the R-shaped outer edge of the sheet metal workpiece, thus completing the grinding and polishing of the R-shaped outer circle. Changing the distance from this intersection point to the two sides of the sheet metal workpiece to be processed also changes the size of the R-shaped outer edge. Therefore, the function of changing the R-value of the processed surface and the radius of the R-shaped outer edge of the sheet metal workpiece is achieved.

[0027] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. [Attached Image Description]

[0028] Figure 1 This is a perspective view of the back of a swing grinding device for grinding rounded edges on both sides according to the present invention.

[0029] Figure 2 This is a front perspective view of a swing grinding device for grinding rounded edges on both sides according to the present invention.

[0030] Figure 3 This is a perspective view of the other side of the front of a double-sided oscillating grinding device for grinding R-shaped edges according to this utility model.

[0031] Figure 4 This is a perspective view of the other side of the back of a double-sided oscillating grinding device for grinding R-shaped edges according to the present invention.

[0032] Figure 5 This is a side view of a swing grinding device for grinding R-shaped edges on both sides according to the present invention;

[0033] Figure 6 This is a front perspective view of the upper swing grinding head assembly of this utility model;

[0034] Figure 7 This is a three-dimensional view of the back of the swing grinding head assembly of this utility model;

[0035] Figure 8 This is a side view of the upper swing grinding head assembly of this utility model;

[0036] Figure 9This is a three-dimensional schematic diagram of the swing adjustment distance mechanism of this utility model.

Detailed Implementation Methods

[0037] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0038] Please refer to Figures 1 to 9 As shown in the figure, the following describes a double-sided oscillating grinding device for grinding R-shaped edges, which includes a main equipment frame 1 placed directly on the ground, a sheet workpiece 2, a transport power mechanism 6, an upper oscillating grinding head assembly 3, a lower oscillating grinding head assembly 4, and an auxiliary grinding head assembly 5.

[0039] The transport power mechanism includes a conveying power device installed at one end of the main equipment frame 1, a lower beam belt assembly 7 and an upper beam belt assembly 8 installed on the main equipment frame 1 and connected to the conveying power device. The upper beam belt assembly 8 is located on the upper end face of the lower beam belt assembly 7. An alignment belt assembly 9 is installed at the input end of the lower beam belt assembly 7 and the upper beam belt assembly 8. One end of the alignment belt assembly 9 is the input end of the sheet material, i.e., the feeding port.

[0040] The upper beam belt assembly 8 includes a conveying power mechanism installed at one end of the main equipment frame, an upper beam drive pulley connected to the conveying power mechanism, an upper beam driven pulley installed at the other end of the main equipment frame, and an upper beam belt connecting the upper beam drive pulley and the upper beam driven pulley. The conveying power mechanism provides power to the upper beam belt assembly 8 and the lower beam belt assembly 7. The power supply device is a dual-worm gear reducer, which has two shafts at its output end. The shafts rotate at the same speed but in opposite directions. The difference between the upper beam belt assembly 8 and the lower beam belt assembly 7 is that the upper beam belt assembly 8 has a spring clip assembly installed inside, while the lower beam belt assembly 7 is a quasi-rigid component, i.e., a reference component.

[0041] The structure of the upper swing grinding head assembly 3 is the same as that of the lower swing grinding head assembly 4. The upper swing grinding head assembly 3 includes a mechanism support consisting of a longitudinally arranged swing bearing plate 301 and a bearing support frame 302 installed on the top of the swing bearing plate 301, which is placed directly on the bottom surface. A crank mechanism is set inside the upper end of the bearing support frame 302, a swing mechanism is set inside the lower end of the bearing support frame 302, a connecting rod mechanism is used to hinge the crank mechanism and the swing mechanism together, and a swing adjustment distance mechanism is set outside the swing bearing plate 301.

[0042] The crank mechanism includes two crank mechanisms, a power source device disposed between the two crank mechanisms, and crank shafts 303 disposed at both ends of the power source device and connected to the crank mechanisms respectively. The power source device includes an RV reducer module 304 mounted on the back of the support frame 302, a power motor 305 mounted on the RV reducer module 304, a drive bearing housing connected to the power motor 305, and a driven bearing housing that cooperates with the drive bearing housing and is connected to the crank shafts 303.

[0043] The crank mechanism includes crank fixed bearings 306 installed at both ends of the crank rotating shaft 303, crank pads 307 installed on the crank fixed bearings 306, crank rotating disks 308 installed on the crank pads 307, and eccentric holes disposed on the crank rotating disks 308 at off-center positions.

[0044] The swing mechanism device includes a swing mechanism disposed inside the two swing frame support plates 301, and a swing frame installed between the two swing mechanisms.

[0045] The swing mechanism includes a long horizontal arm 309 installed on the upper inner side of the swing frame support plate 301, a short horizontal arm 310 installed on the lower inner side of the swing frame support plate 301, a long vertical arm 311 installed on the front inner side of the swing frame support plate 301, and a short vertical arm 312 installed on the rear inner side of the swing frame support plate 301; a lower swing pivot 313 installed at the intersection of the lower end of the long vertical arm 311 and the front end of the short horizontal arm 310; and a connecting rod 320 and a long horizontal arm 312 installed at the intersection of the upper end of the long vertical arm 311 and the front end of the long horizontal arm 309. The upper swing shaft 314 is hinged together with the vertical arm 311 and the long horizontal arm 309; the upper ends of the long vertical arm 311 and the short vertical arm 312 are respectively hinged to the two ends of the long horizontal arm 311; one end of the short horizontal arm 310 is fixed to the swing frame support plate 301, and the other end of the short horizontal arm 310 is hinged to the lower end of the long vertical arm 311; the short horizontal arm 310, which is equipped with the long vertical arm 311, swings along the end of the short horizontal arm 310 fixed to the swing frame support plate 301 as the center.

[0046] The swing frame includes a swing box crossarm support 3130 directly mounted on the lower end of the short crossarms 310 on both sides, multiple longitudinally arranged swing guide rails 3140 mounted on the swing box crossarm support 3130, a guide rail slide plate 315 that can move back and forth mounted on the multiple swing guide rails 3140, and multiple grinding wheel devices mounted on the guide rail slide plate 315; the grinding wheel device includes a grinding head motor 316 directly fixedly mounted on the guide rail slide plate 315, and a grinding wheel 317 mounted on the grinding head motor 316.

[0047] The linkage mechanism includes two linkages respectively located at the intersection of the crank mechanism and the oscillating mechanism. Each linkage includes a first linkage shaft 318 directly fixed inside an eccentric hole, a first linkage shaft seat 319 mounted around the first linkage shaft 318, a connecting rod 320 connected to the first linkage shaft seat 319, a second linkage shaft 321 hinged to the upper end of a long vertical arm 311, and a second linkage shaft seat 322 mounted around the second linkage shaft 321 and connected to the connecting rod 320.

[0048] The swing adjustment distance mechanism includes a vertical adjustment structure directly mounted on the swing support plate 301, and a front-back adjustment structure mounted on the vertical adjustment structure. The vertical adjustment structure includes a vertical mounting plate 323 directly mounted on the upper end of the swing support plate 301, a longitudinal adjustment motor 324 mounted on the vertical mounting plate 323, a vertical adjustment bearing box module 325 connected to the longitudinal adjustment motor 324 mounted on the back of the vertical mounting plate 323, a vertical adjustment screw 326 connected to the vertical adjustment bearing box module 325, a vertical adjustment mounting plate 327 mounted on the vertical adjustment screw 326, a vertical adjustment nut 328 mounted on the vertical adjustment screw 326, and a horizontally arranged vertical adjustment guide rail 329 mounted on the lower end of the vertical adjustment mounting plate 327. The front-back adjustment structure includes a front-back adjustment plate 330 directly mounted on the vertical adjustment mounting plate 327, front-back adjustment guide rails 331 mounted on the upper and lower ends of the front-back adjustment plate 330, and a front-back adjustment screw 332 mounted on one side at the center of the front-back adjustment plate 330. The output shaft of the reducer of the longitudinal adjustment motor 324 is concentric with the upper and lower adjustment screw 326.

[0049] The transport power mechanism 6, the upper swing grinding head assembly 3, the lower swing grinding head assembly 4, and the auxiliary grinding head assembly 5 are respectively mounted on the main frame 1 of the equipment. The transport power mechanism 6 is located on one side of the upper swing grinding head assembly 3 and the lower swing grinding head assembly 4, and the upper swing grinding head assembly 3 and the lower swing grinding head assembly 4 are arranged parallel to each other and spaced apart; the auxiliary grinding head assembly 5 is located on one side of the upper swing grinding head assembly 3.

[0050] When in use, the power source device starts the crank rotating shaft 303 to rotate. The crank rotating shaft 303 drives the crank mechanism set at both ends of the crank rotating shaft 303 to rotate. The crank mechanism drives the connecting rod mechanism to swing. The connecting rod mechanism drives the swing mechanism to swing. The swing mechanism drives the swing frame set on the swing mechanism to swing. The swing frame drives the grinding wheel device to perform a back-and-forth swinging motion.

[0051] The grinding wheel device contacts one right-angled edge and two edge surfaces of the workpiece being processed when it swings, thus realizing the grinding action. During grinding, the right-angled edge of the workpiece being processed is placed at the inherent center point of the swing mechanism, and the grinding wheel device swings back and forth around the workpiece.

[0052] The swing trajectory is as follows: with the workpiece 2 being processed as the center end, the inherent swing center point of the swing mechanism is adjusted to coincide with the R center point of the R circle edge of the workpiece 2. The grinding wheel inside the grinding wheel device swings around this point, with the distance between the center end and the grinding wheel device as the swing radius, and the swing amplitude of the swing frame as the swing arc.

[0053] In summary, since a swing mechanism is provided on the inner wall of the support frame 302, the swing mechanism includes a swing mechanism disposed on the inner side of the two swing frame support plates 301, a swing frame installed between the two swing mechanisms, and a plurality of grinding wheel devices installed on the swing frame.

[0054] The swing frame includes a swing box crossarm support 3130 directly mounted on the lower end of the short crossarms 310 on both sides, multiple longitudinally arranged swing guide rails 3140 mounted on the swing box crossarm support 3130, a guide rail slide plate 315 that can move back and forth mounted on the multiple swing guide rails 3140, and multiple grinding wheel devices mounted on the guide rail slide plate 315; the grinding wheel device includes a grinding head motor 316 directly fixedly mounted on the guide rail slide plate 315, and a grinding wheel 317 mounted on the grinding head motor 316.

[0055] In the structure of this application, a parallelogram-shaped swing mechanism is formed by hinges between a horizontally arranged long horizontal arm 309 and a short horizontal arm 310, and a longitudinally arranged long vertical arm 311 and a short vertical arm 312. One side of the long horizontal arm 309 and the short horizontal arm 310 is fixed to the swing bearing plate 301 via an upper swing pivot 314 and a lower swing pivot 313. The long vertical arm 311 and the short vertical arm 312 are movably connected to the long horizontal arm 309 and the short horizontal arm 310, while the swing box cross arm bracket 3130 is set on the long vertical arm 311 or the short vertical arm 312.

[0056] When the crank mechanism and the connecting rod mechanism drive the long cross arm 309 to rotate around the swing shaft, the short cross arm 310 and the swing box cross arm support 3130 will also rotate synchronously at the same angle. The grinding wheel device will also rotate with the swing box cross arm support 3130, thereby changing the angle of the R-circle edge of the grinding wheel on the plate workpiece 2 being processed.

[0057] The center line connecting the upper swing shaft 314 and the lower swing shaft 313, which are located on the swing bearing plate 301, and the center line connecting the two shafts of the swing box cross arm bracket 3130 are extended by a certain distance to form an intersection point. This intersection point does not change with the rotation of the swing box cross arm bracket 3130. The center of the R-shaped edge of the sheet metal workpiece 2 is placed at this intersection point. The swing frame drives the grinding wheel 317 to move around this intersection point. Therefore, the movement trajectory of the working surface of the grinding wheel 317 falls on the outer circle of the R-shaped edge of the sheet metal workpiece 2, thus completing the grinding and polishing of the outer R-shaped edge of the sheet metal workpiece 2. Changing the distance from this intersection point to the two sides of the sheet metal workpiece 2 to be processed also changes the size of the R-shaped edge. Thus, the function of changing the R-value of the processed surface and the radius of the R-shaped edge of the sheet metal workpiece is achieved.

[0058] The sheet metal workpiece 2, with its smooth surface facing down, enters from the lower beam belt assembly at one end of the alignment belt assembly 9, pushing the workpiece towards it and ensuring precise contact. At this point, the workpiece has a front and rear positioning reference. The lower beam belt assembly, upper beam belt assembly, and alignment belt assembly all operate in the same direction. When the workpiece enters the overlapping area of ​​the upper and lower beam belt assemblies, it is clamped 7 by both assemblies and continues to move. When the workpiece 2 reaches the position of each rotating grinding wheel 317, it is ground by the corresponding grinding wheel.

[0059] With the smooth surface of sheet metal workpiece 2 facing downwards, the back R-shaped edge of sheet metal workpiece 2 is being processed. When sheet metal workpiece 2 is clamped by the upper beam belt assembly 8 and the lower beam belt assembly 7 and moved to the position of the upper swing grinding head assembly 3, the center of the R-shaped edge of sheet metal workpiece 2 is set to coincide with the center of the swinging circle of the swinging mechanism. The radius of the R-shaped edge of sheet metal workpiece 2 is 8 cm. Therefore, the distance from the swinging center point to the right side and top surface of sheet metal workpiece 2 is 8 cm. At this time, the parallel distance from the working end face of the grinding wheel 317 to the swinging center point is adjusted to 8 cm. When the grinding wheel 317 swings, it is equivalent to the working surface of the grinding wheel reciprocating around the R-shaped center point of the sheet metal workpiece in a circle with a radius of 8 cm. Therefore, the processed circle is an arc surface with a radius of 8 cm. By adjusting the radius of the crank through the radius adjustment hole in the crank mechanism, the size of the reciprocating swing arc can be changed between 0-90°, which means that 1 / 4 circle can be made completely tangent to both sides.

[0060] The preferred embodiments of this utility model have been described above with reference to the accompanying drawings, but this does not limit the scope of the utility model. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of this utility model should be within the scope of the utility model.

Claims

1. A double-sided oscillating grinding machine for grinding rounded edges, comprising a main frame of the machine placed directly on the ground and a sheet metal workpiece, characterized in that: The main frame of the equipment is respectively equipped with a transport power mechanism, an upper swing grinding head assembly, a lower swing grinding head assembly, and an auxiliary grinding head assembly; the transport power mechanism is located on one side of the upper swing grinding head assembly and the lower swing grinding head assembly, and the upper swing grinding head assembly and the lower swing grinding head assembly are arranged in parallel and spaced apart; the auxiliary grinding head assembly is located on one side of the upper swing grinding head assembly. The transport power mechanism includes a conveying power device installed at one end of the main equipment frame, a lower beam belt assembly and an upper beam belt assembly installed on the main equipment frame and connected to the conveying power device, the upper beam belt assembly being located on the upper end face of the lower beam belt assembly, and an alignment belt assembly installed at the output ends of the lower beam belt assembly and the upper beam belt assembly, one end of which is the input end of the sheet material, i.e., the feeding port; The upper beam belt assembly includes a conveying power mechanism installed at one end of the main equipment frame, an upper beam drive pulley connected to the conveying power mechanism, an upper beam driven pulley installed at the other end of the main equipment frame, and an upper beam belt connecting the upper beam drive pulley and the upper beam driven pulley together. The conveying power mechanism provides power to the upper beam belt assembly and the lower beam belt assembly. The power supply device is a dual-worm gear reducer, which has two shafts at its output end. The shafts rotate at the same speed but in opposite directions. The difference between the upper beam belt assembly and the lower beam belt assembly is that the upper beam belt assembly has a spring clip assembly installed inside, while the lower beam belt assembly is a quasi-rigid component, i.e., a reference component. The structure of the upper swing grinding head assembly is the same as that of the lower swing grinding head assembly; the upper swing grinding head assembly includes a mechanism bracket consisting of a swing bearing plate arranged longitudinally and a bearing support frame installed on the top of the swing bearing plate, which is placed directly on the bottom surface; a crank mechanism device is set at the upper end of the bearing support frame; a swing mechanism device is set at the lower end of the bearing support frame; a connecting rod mechanism device is used to hinge the crank mechanism device and the swing mechanism device together; and a swing adjustment distance mechanism is set on the outside of the swing bearing plate. The crank mechanism device includes two crank mechanisms, a power source device disposed between the two crank mechanisms, and crank rotation shafts disposed at both ends of the power source device and respectively connected to the crank mechanisms. The swing mechanism device includes a swing mechanism disposed inside the two swing frame support plates, and a swing frame installed between the two swing mechanisms; The linkage mechanism includes two linkages respectively located at the intersection of the crank mechanism and the swing mechanism; In use, the power source device starts the crank rotating shaft to rotate, which drives the crank mechanism set at both ends of the crank rotating shaft to rotate. The crank mechanism drives the connecting rod mechanism to swing, the connecting rod mechanism drives the swing mechanism to swing, the swing mechanism drives the swing frame set on the swing mechanism to swing, and the swing frame drives the grinding wheel device to perform a back-and-forth swinging motion. The grinding wheel device contacts one right-angled edge and two edge surfaces of the workpiece being processed when it swings, thus realizing the grinding action. During grinding, the right-angled edge of the workpiece being processed is placed at the inherent center point of the swing mechanism, and the grinding wheel device swings back and forth around the workpiece. The swing trajectory is as follows: with the workpiece being processed as the center end, the inherent swing center point of the swing mechanism is adjusted to coincide with the R center point of the R circle edge of the workpiece. The grinding wheel inside the grinding head wheel device swings around this point, with the distance between the center end and the grinding head wheel device as the swing radius, and the swing amplitude of the swing frame as the swing arc.

2. The oscillating grinding equipment for double-sided grinding of R-shaped edges according to claim 1, characterized in that: The power source device includes an RV reducer module installed on the back of the support frame, a power motor installed on the RV reducer module, a drive bearing housing connected to the power motor, and a driven bearing housing connected to the crank shaft and cooperating with the drive bearing housing. The crank mechanism includes crank fixed bearings installed at both ends of the crank rotating shaft, crank pads installed on the crank fixed bearings, crank rotating disks installed on the crank pads, and eccentric holes located off-center on the crank rotating disks.

3. The oscillating grinding equipment for double-sided grinding of R-shaped edges according to claim 1, characterized in that: The swing mechanism includes a long horizontal arm installed on the upper inner side of the swing frame support plate, a short horizontal arm installed on the lower inner side of the swing frame support plate, a long vertical arm installed on the front inner side of the swing frame support plate, and a short vertical arm installed on the rear inner side of the swing frame support plate; a lower swing pivot installed at the intersection of the lower end of the long vertical arm and the front end of the short horizontal arm, and an upper swing pivot installed at the intersection of the upper end of the long vertical arm and the front end of the long horizontal arm, which hinges the connecting rod, the long vertical arm, and the long horizontal arm together; the upper ends of the long vertical arm and the short vertical arm are respectively hinged to the two ends of the long horizontal arm; one end of the short horizontal arm is fixed to the top of the swing frame support plate, and the other end of the short horizontal arm is hinged to the lower end of the long vertical arm; the short horizontal arm with the long vertical arm is installed swings along the end of the short horizontal arm fixed to the swing frame support plate as the center.

4. The oscillating grinding equipment for double-sided grinding of R-shaped edges according to claim 1, characterized in that: The swing frame includes a swing box crossarm bracket directly mounted on the lower end of the short crossarms on both sides, multiple longitudinally arranged swing guide rails mounted on the swing box crossarm bracket, a guide rail slide plate that can move back and forth mounted on the multiple swing guide rails, and multiple grinding head wheel devices mounted on the guide rail slide plate; the grinding head wheel device includes a grinding head motor directly fixedly mounted on the guide rail slide plate, and a grinding wheel mounted on the grinding head motor.

5. The oscillating grinding equipment for double-sided grinding of R-shaped edges according to claim 1, characterized in that: The linkage mechanism includes a first linkage shaft directly fixed inside the eccentric hole, a first linkage shaft seat installed around the first linkage shaft, a connecting rod connected to the first linkage shaft seat, a second linkage shaft hinged to the upper end of the long vertical arm, and a second linkage shaft seat installed around the second linkage shaft and connected to the connecting rod.

6. The oscillating grinding equipment for double-sided grinding of R-shaped edges according to claim 1, characterized in that: The swing adjustment distance mechanism includes a vertical adjustment structure directly mounted on the swing support plate, and a front-back adjustment structure mounted on the vertical adjustment structure. The vertical adjustment structure includes a vertical mounting plate directly mounted on the upper end of the swing support plate, a longitudinal adjustment motor mounted on the vertical mounting plate, a vertical adjustment bearing box module connected to the longitudinal adjustment motor mounted on the back of the vertical mounting plate, a vertical adjustment lead screw connected to the vertical adjustment bearing box module, a vertical adjustment mounting plate mounted on the vertical adjustment lead screw, a vertical adjustment nut mounted on the vertical adjustment lead screw, and a horizontally arranged vertical adjustment guide rail mounted on the lower end of the vertical adjustment mounting plate. The front-back adjustment structure includes a front-back adjustment plate directly mounted on the vertical adjustment mounting plate, front-back adjustment guide rails mounted at the upper and lower ends of the front-back adjustment plate, and a front-back adjustment lead screw mounted on one side at the center of the front-back adjustment plate.

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