Multifunctional external thread composite grinding machine
By designing a multifunctional external thread composite grinder, the external circle and external thread processing is realized on the same grinder, which solves the problems of troublesome operation, low accuracy and high cost in the prior art, and improves the processing efficiency and accuracy.
Patent Information
- Application Number
- CN202422126971.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the prior art, the long rod-shaped machining piece needs to be processed through two different grinders, resulting in troublesome operation, low accuracy and high cost.
A multifunctional external thread composite grinding machine is designed. By setting a rotating seat and locking mechanism on the same grinder, switching between the outer cylindrical grinding mechanism and the thread grinding mechanism is realized, allowing the processing of the outer cylindrical and external threads to be completed on the same grinder.
The processing of outer circle and external threads on the same grinder is realized, which simplifies operation, improves accuracy, and reduces processing costs.
Smart Images
Figure CN223012088U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a grinding machine, in particular to a multi-functional external thread composite grinding machine. Background Art
[0002] At present, when some long rod-shaped workpieces to be processed, such as lead screws, need to be processed by a grinding machine, they first need to be ground on the outer circle by an external cylindrical grinding machine, and then the external thread grinding operation is carried out by an external thread grinding machine. Since the existing outer circle grinding mechanism and the external thread grinding mechanism are two different grinding machines respectively, the workpiece to be processed needs to be clamped twice. This not only makes the operation troublesome, but also affects the processing accuracy. In addition, the processing cost is also relatively high by using two different grinding machines for processing. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a multi-functional external thread composite grinding machine that combines outer circle grinding and external thread grinding.
[0004] To achieve the above object, the utility model provides a multi-functional external thread composite grinding machine, which includes a machine body. A fixture mounting plate is arranged on the machine body, and a fixture for clamping and positioning the axial ends of the workpiece to be processed is arranged on the fixture mounting plate. The machine body is provided with a mounting seat on one side of the fixture mounting plate, and the machine body is also provided with a moving driving mechanism for driving the fixture mounting plate and the mounting seat to move relatively. A rotating seat that can rotate on it is arranged on the mounting seat, and a locking mechanism for locking the rotating seat and the mounting seat after the rotating seat rotates relative to the mounting seat is arranged between the mounting seat and the rotating seat. An outer circle grinding mechanism for grinding the outer circle is installed on one side of the rotating seat, and a thread grinding mechanism for grinding the thread is installed on the other side of the rotating seat.
[0005] The beneficial effect of the utility model is: adopting the above scheme, through the rotation of the rotating seat relative to the mounting seat, the switching between the outer circle grinding mechanism and the thread grinding mechanism can be realized, so that the outer circle grinding operation and the external thread grinding operation are realized on the same grinding machine. The workpiece to be processed does not need to be clamped twice, the operation is more convenient, the processing accuracy is improved, and the processing cost is effectively reduced.
[0006] The utility model can be further configured such that the locking mechanism includes a rocker and a T-shaped locking rod. The rod body of the T-shaped locking rod axially passes through the rotating seat and the mounting seat in sequence. The rod head of the T-shaped locking rod is set to be flat. A limiting groove corresponding to the flat rod head for axially plugging and limiting is provided on the rotating seat. A compression spring for urging the flat rod head to be plugged into the limiting groove is sleeved on the rod body of the T-shaped locking rod. The middle of the rocker is hinged to the mounting seat. The two ends of the rocker are respectively a first end and a second end. The end of the rod body of the T-shaped locking rod abuts against the first end of the rocker. An oil cylinder is provided on the mounting seat. A push rod acting on the second end of the rocker is correspondingly provided at the output end of the oil cylinder. When the oil cylinder is filled with oil, the push rod presses the second end of the rocker and causes the rocker to be hinged and rotated. After the rocker is hinged and rotated, the first end of the rocker pushes the T-shaped locking rod to axially move against the acting force of the compression spring, and the flat rod head is disengaged from the limiting groove of the rotating seat, and the rotating seat and the mounting seat lose the limiting lock. When the oil cylinder drains oil, the T-shaped locking rod pushes the rocker to be reversely hinged and rotated under the acting force of the compression spring, and the flat rod head is plugged into the limiting groove of the rotating seat, and the rotating seat and the mounting seat achieve the limiting lock.
[0007] With the above scheme, when the external cylindrical grinding mechanism and the thread grinding mechanism need to be switched, that is, when the rotating seat needs to rotate relative to the mounting seat, by filling the oil cylinder with oil, the push rod presses the second end of the rocker, and the rocker is caused to be hinged and rotated. After the rocker is hinged and rotated, the first end of the rocker pushes the T-shaped locking rod to axially move against the acting force of the compression spring, and the flat rod head is disengaged from the limiting groove of the rotating seat. At this time, the rotating seat and the mounting seat lose the limiting lock, and the rotating seat can rotate relative to the mounting seat. After the switching between the external cylindrical grinding mechanism and the thread grinding mechanism is completed, the oil cylinder drains oil, and the push rod of the oil cylinder no longer presses the second end of the rocker. At this time, the T-shaped locking rod pushes the rocker to be reversely hinged and rotated under the acting force of the compression spring, and the flat rod head is plugged into the limiting groove of the rotating seat again, so that the rotating seat and the mounting seat can achieve the limiting lock.
[0008] The utility model can also be further configured such that a rotation driving mechanism is provided on the rotating seat. The rotation driving mechanism includes a first motor, a worm gear, and a worm. The worm gear is installed on the rotating seat. The worm is rotatably arranged on the mounting seat and is connected with a first motor for driving its rotation. The worm gear and the worm form a linkage cooperation. During operation, the first motor drives the worm to rotate, and thus, through the cooperation of the worm gear and the worm, the rotating seat is driven to rotate relative to the mounting seat. With such a structural arrangement, on the one hand, the worm gear and the worm itself have a locking function when not rotating, and on the other hand, another locking function is realized through the cooperation of components such as the oil cylinder, the push rod, the rocker, and the T-shaped locking rod, so that a double-locking structure can be formed between the rotating seat and the mounting seat, and further the structural performance of the grinding wheel during processing is more stable and reliable.
[0009] The utility model can further be configured such that the moving drive mechanism includes a second motor and a third motor. An X-axis guide rail extending in the X-axis direction and a Y-axis guide rail extending in the Y-axis direction are provided on the machine body. The fixture mounting plate is slidably arranged on the X-axis guide rail and is connected to a second motor for driving it to slide in the X-axis direction. The central axis of the workpiece to be processed is also in the X-axis direction. The mounting seat is slidably arranged on the Y-axis guide rail and is connected to a third motor for driving it to slide in the Y-axis direction. The central axis of the rotating seat is in the Z-axis direction.
[0010] With the above structure, after the workpiece to be processed is clamped, it can move in the X-axis direction, and the external cylindrical grinding mechanism and the external thread grinding mechanism arranged on the mounting seat can move along the Y-axis direction with the mounting seat. Thus, in addition to being able to perform external cylindrical grinding operation and external thread grinding operation on a conventional cylindrical workpiece to be processed, the utility model can also realize external cylindrical grinding operation and external thread grinding operation on a cam-shaped workpiece to be processed through the movement change in the X-axis and Y-axis directions, that is, it can realize the function of a follow-up grinding machine, with more diverse functions and a wider processing range.
[0011] The utility model can further be configured such that the external thread grinding mechanism includes an external thread grinding wheel, a fourth motor, and an angle driving mechanism. The angle driving mechanism includes a swing plate, a first screw rod, a slider, and a fifth motor. The swing plate is hinged and installed on the rotating seat, and an arc-shaped track is correspondingly formed on the rotating seat for the hinged rotation of the swing plate. The first screw rod is rotatably arranged on the rotating seat and is connected to a fifth motor for driving its rotation. The slider is sleeved on the first screw rod and can linearly slide along the first screw rod. A limiting structure is arranged between the slider and the swing plate, and through the limiting cooperation of the limiting structure, the sliding of the slider can drive the swing plate to hingedly rotate along the arc-shaped track. A fixed seat is fixedly connected to the swing plate, the fourth motor is installed on the fixed seat, and the external thread grinding wheel is installed on the output shaft of the fourth motor and is driven by the fourth motor to rotate.
[0012] With the above structure, when the fifth motor works, it drives the first screw rod to rotate, thereby driving the swing plate to perform hinged swinging through the slider, and further driving the fourth motor installed on the fixed seat and the external thread grinding wheel installed on the output shaft of the fourth motor to swing, so as to realize the adjustment and change of the grinding angle of the external thread grinding wheel.
[0013] The utility model can further be configured such that a pressing mechanism for pressing the swing plate after its swinging is connected to the swing plate. The pressing mechanism includes a pressing block and a pressing cylinder. The pressing block is slidably arranged along a straight line on the arc-shaped track and is located on one side of the swing plate. The pressing block is installed on the output end of the pressing cylinder. With such a setting, after the swing plate swings, the pressing cylinder can be driven to act on the swing plate through the pressing block to realize the pressing and limiting of the swing plate. When the swing plate needs to swing, the pressing block releases the pressing on the swing plate, and the swing plate can swing, realizing automated operation and facilitating the adjustment and change of the angle of the external thread grinding wheel.
[0014] The utility model can be further configured such that the thread grinding mechanism also includes a dressing wheel, a slide plate, a second screw, a sixth motor, and a seventh motor. The second screw is rotatably arranged on a fixed seat and is connected to a sixth motor for driving its rotation. The slide plate is slidably arranged on a fixed seat and forms a linkage with the second screw. The seventh motor is fixedly mounted on the slide plate. The dressing wheel is mounted on the output shaft of the seventh motor and driven to rotate by the seventh motor. After the dressing wheel moves up and down, it can form a tangential contact with the thread grinding wheel. In this configuration, the sixth motor works and drives the second screw to rotate, thereby causing the slide plate to slide up and down, and then causing the seventh motor fixedly mounted on the slide plate and the dressing wheel mounted on the output shaft of the seventh motor to move up and down, so as to realize the online dressing operation of the thread grinding wheel.
[0015] The utility model can be further configured such that the limiting structure comprises a convex block and a concave groove which are adapted to be plugged in and matched with each other, and the convex block and the concave groove are respectively arranged on the swing plate and the sliding block.
[0016] The utility model can be further configured that the cylindrical grinding mechanism includes a cylindrical grinding wheel and an eighth motor, the eighth motor is fixedly mounted on the rotating seat, the cylindrical grinding wheel is mounted on the output shaft of the eighth motor and is driven to rotate by the eighth motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of the utility model;
[0018] Figure 2 It is a partial structural diagram of the utility model;
[0019] Figure 3 It is a partial structural diagram of the utility model;
[0020] Figure 4 It is a partial structural sectional view of the utility model. DETAILED DESCRIPTION
[0021] like Figure 1 , 2 , 3, and 4 show a multifunctional external thread compound grinding machine, including a machine body 1, on which a fixture mounting plate 2 is provided, on which a fixture for clamping and positioning the axial ends of a workpiece is provided, the fixture including a first fixture 21 and a second fixture 22, at least one of the first fixture 21 and the second fixture 22 can move axially, and of course both fixtures can move axially, and through the axial movement, the axial ends of the workpiece are supported to achieve clamping and fixing of the workpiece, as shown in the specific Figure 1As shown in the figure, the second fixture 22 can be a DD motor with a clamping and rotating function, and the first fixture 21 is arranged to be able to slide along the linear track 23 to adjust the clamping position. On one side of the fixture mounting plate 2 of the machine body 1, a mounting seat 3 is provided, and a moving driving mechanism for driving the fixture mounting plate 2 and the mounting seat 3 to move relative to each other is also provided on the machine body 1. A rotating seat 4 that can rotate on the mounting seat 3 is provided on the mounting seat 3, and a locking mechanism 5 for locking the rotating seat 4 and the mounting seat 3 after the rotating seat 4 rotates relative to the mounting seat 3 is provided between the mounting seat 3 and the rotating seat 4. An external grinding mechanism for grinding the outer circle is installed on one side of the rotating seat 4. The external grinding mechanism includes an external grinding wheel 31 and an eighth motor 32. The eighth motor 32 is fixedly installed on the rotating seat 4, and the external grinding wheel 31 is installed on the output shaft of the eighth motor 32 and is driven by the eighth motor 32 to rotate. A thread grinding mechanism for grinding threads is installed on the other side of the rotating seat 4.
[0022] With the above solution, by rotating the rotating seat 4 relative to the mounting seat 3, the switching between the external grinding mechanism and the thread grinding mechanism can be realized, so that the operation of grinding the outer circle and the operation of grinding the external thread are realized on the same grinding machine. The workpiece to be processed does not need to be clamped twice, the operation is simpler, the processing accuracy is improved, and the processing cost is effectively reduced.
[0023] The locking mechanism 5 includes a rocker 51 and a T-shaped locking rod 52. The rod body 521 of the T-shaped locking rod 52 axially passes through the rotating seat 4 and the mounting seat 3 in sequence. The rod head 522 of the T-shaped locking rod 52 is set to be flat. A limiting groove 41 that forms an axial plugging limit with the flat rod head 522 is correspondingly provided on the rotating seat 4. A compression spring 53 for urging the flat rod head 522 to be plugged into the limiting groove 41 is sleeved on the rod body 521 of the T-shaped locking rod 52. The middle part of the rocker 51 is hinged on the mounting seat 3. The two ends of the rocker 51 are respectively a first end 511 and a second end 512. The end of the rod body of the T-shaped locking rod 52 abuts against the first end 511 of the rocker 51. An oil cylinder 54 is provided on the mounting seat 3. A push rod 55 acting on the second end 512 of the rocker is correspondingly provided at the output end of the oil cylinder 54. And when the oil cylinder 54 is filled with oil, the push rod 55 presses the second end 512 of the rocker 51 and urges the rocker 51 to rotate hingedly. After the rocker 51 rotates hingedly, the first end 511 of the rocker 51 pushes the T-shaped locking rod 52 to move axially against the acting force of the compression spring 53, and the flat rod head 522 is disengaged from the limiting groove 41 of the rotating seat 4, and the rotating seat 4 and the mounting seat 3 lose the limit locking; when the oil cylinder 54 discharges oil, the T-shaped locking rod 52 pushes the rocker 51 to rotate hingedly in the reverse direction under the acting force of the compression spring 53, and the flat rod head 522 is plugged into the limiting groove 41 of the rotating seat 4, and the rotating seat 4 and the mounting seat 3 realize the limit locking.
[0024] With the above solution, when the external cylindrical grinding mechanism and the thread grinding mechanism need to be switched, that is, when the rotating seat 4 needs to rotate relative to the mounting seat 3, oil is injected into the oil cylinder 54, so that the ejector rod 55 presses the second end 512 of the rocker 51, and promotes the rocker 51 to rotate in a hinged manner. After the rocker 51 rotates in a hinged manner, the first end 511 of the rocker 51 pushes the T-shaped locking rod 52 to move axially against the force of the compression spring 53, and the flat rod head 522 is disengaged from the limit groove 41 of the rotating seat 4. At this time, the rotating seat 4 and the mounting seat 3 lose the limit lock, and the rotating seat 4 can rotate relative to the mounting seat 3. After the switching between the external cylindrical grinding mechanism and the thread grinding mechanism is completed, the oil cylinder 54 discharges oil, and the ejector rod 55 of the oil cylinder 54 no longer presses the second end 512 of the rocker 51. At this time, the T-shaped locking rod 52 pushes the rocker 51 to rotate in the reverse hinged manner under the action of the compression spring 53, and the flat rod head 522 is inserted into the limit groove 41 of the rotating seat 4 again, so that the rotating seat 4 and the mounting seat 3 can achieve the limit lock.
[0025] A rotation driving mechanism is provided on the rotating seat 4. The rotation driving mechanism includes a first motor, a worm gear, and a worm. The worm gear is installed on the rotating seat 4, and the worm is rotatably arranged on the mounting seat 3 and connected with a first motor for driving its rotation. The worm gear and the worm form a linkage cooperation. During operation, the first motor drives the worm to rotate, and thus, through the cooperation of the worm gear and the worm, the rotating seat 4 is driven to rotate relative to the mounting seat 3. With such a structural arrangement, on the one hand, the worm gear and the worm itself have a locking function when they do not rotate, and on the other hand, another locking function is achieved through the cooperation of components such as the oil cylinder, the ejector rod, the rocker, and the T-shaped locking rod, so that a double-locking structure can be formed between the rotating seat 4 and the mounting seat 3, and further, the structural performance of the grinding wheel is more stable and reliable during processing.
[0026] The movement driving mechanism includes a second motor and a third motor. An X-axis guide rail 11 extending in the X-axis direction and a Y-axis guide rail 12 extending in the Y-axis direction are provided on the machine body 1. The fixture mounting plate 2 is slidably arranged on the X-axis guide rail 11 and connected with a second motor for driving its sliding along the X-axis direction. The central axis of the workpiece to be machined is also in the X-axis direction. The mounting seat 3 is slidably arranged on the Y-axis guide rail 12 and connected with a third motor for driving its sliding along the Y-axis direction. The central axis of the rotating seat 4 is in the Z-axis direction.
[0027] With the above structure, after the workpiece to be machined is clamped, it can move along the X-axis direction, and the external cylindrical grinding mechanism and the thread grinding mechanism provided on the mounting seat 3 can move along the Y-axis direction with the mounting seat, so that in addition to being able to perform the external cylindrical grinding operation and the external thread grinding operation on the conventional cylindrical workpiece to be machined, the present invention can also realize the external cylindrical grinding operation and the external thread grinding operation on the cam-shaped workpiece to be machined through the movement changes in the X-axis and Y-axis directions, that is, the function of a follow-up grinding machine can be realized, the function is more diversified, and the processing range is wider.
[0028] The thread grinding mechanism includes a thread grinding wheel 61, a fourth motor 62, and an angle driving mechanism, wherein the angle driving mechanism includes a swinging plate 63, a first screw 64, a slider 65, and a fifth motor 66. The swinging plate 63 is hingedly mounted on the rotating seat 4, and an arc track 42 corresponding to the swinging plate 63 is formed on the rotating seat 4. The first screw 64 is rotatably arranged on the rotating seat 4 and is connected to a fifth motor 66 for driving the rotation thereof. The slider 65 is sleeved on the first screw 64 and can slide linearly along the first screw 64. A limiting structure 67 is arranged between the slider 65 and the swinging plate 63, and through the limiting cooperation of the limiting structure 67, the sliding of the slider 65 can drive the swinging plate 63 to hinge and rotate along the arc track 42. The limiting structure 67 includes a protrusion and a groove that constitute a matching plug-in cooperation, and the protrusion and the groove are respectively arranged on the swinging plate 63 and the slider 65. A fixing seat 68 is fixedly connected to the swing plate 63 , the fourth motor 62 is mounted on the fixing seat 68 , and the threaded grinding wheel 61 is mounted on the output shaft of the fourth motor 62 and driven to rotate by the fourth motor 62 .
[0029] With the above structure, the fifth motor 66 works to drive the first screw 64 to rotate, thereby driving the swing plate 63 to hinge and swing through the slider 65, and then driving the fourth motor 62 installed on the fixed seat 68 and the threaded grinding wheel 61 installed on the output shaft of the fourth motor 62 to swing, so as to adjust and change the grinding angle of the threaded grinding wheel 61.
[0030] The swing plate 63 is connected with a clamping mechanism for clamping the swing plate 63 after it swings. The clamping mechanism includes a clamping block 69 and a clamping cylinder. The clamping block 69 is arranged on the arc track 42 along a straight line and is located on one side of the swing plate 63. The clamping block 69 is installed on the output end of the clamping cylinder. In this way, after the swing plate 63 swings, the clamping cylinder can drive the clamping block 69 to act on the swing plate 63 to achieve the clamping and limiting of the swing plate 63. When the swing plate 63 needs to swing, the clamping block 69 releases the clamping of the swing plate 63, and the swing plate 63 can swing. The automatic operation facilitates the angle adjustment and change of the threaded grinding wheel 61.
[0031] The thread grinding mechanism also includes a dressing wheel 71, a slide plate 72, a second screw, a sixth motor 73, and a seventh motor 74. The second screw is rotatably arranged on the fixed seat 68 and is connected to the sixth motor 73 for driving its rotation. The slide plate 72 is slidably arranged on the fixed seat 68 and forms a linkage with the second screw. The seventh motor 74 is fixedly mounted on the slide plate 72. The dressing wheel 71 is mounted on the output shaft of the seventh motor 74 and is driven to rotate by the seventh motor 74. After the dressing wheel 71 moves up and down, it can form a tangential contact with the thread grinding wheel 61. In this arrangement, the sixth motor 73 works to drive the second screw to rotate, so that the slide plate 72 slides up and down, and then the seventh motor 74 fixedly mounted on the slide plate 72 and the dressing wheel 71 mounted on the output shaft of the seventh motor 74 move up and down, so as to realize the online dressing operation of the thread grinding wheel 61.
Claims
1. A multifunctional external thread compound grinding machine, comprising a machine body, a fixture mounting plate is provided on the machine body, and a fixture for clamping and positioning the axial ends of the workpiece is provided on the fixture mounting plate, characterized in that: The machine body is provided with a mounting seat on one side of the fixture mounting plate, and the machine body is also provided with a moving drive mechanism for driving the fixture mounting plate and the mounting seat to move relative to each other. The mounting seat is provided with a rotating seat that can rotate thereon, and a locking mechanism is provided between the mounting seat and the rotating seat for locking the rotating seat and the mounting seat after the rotating seat rotates relative to the mounting seat. An external cylindrical grinding mechanism for grinding an external cylindrical surface is installed on one side of the rotating seat, and a thread grinding mechanism for grinding a thread is installed on the other side of the rotating seat.
2. The multifunctional external thread compound grinding machine according to claim 1, characterized in that: The locking mechanism comprises a seesaw and a T-shaped locking rod, the rod body of the T-shaped locking rod passes through the rotating seat and the mounting seat in sequence along the axial direction, the rod head of the T-shaped locking rod is arranged to be flat, and a limiting groove which forms an axial plug-in limit with the flat rod head is arranged on the rotating seat correspondingly, and a compression spring for prompting the flat rod head to be inserted into the limiting groove is mounted on the rod body of the T-shaped locking rod, the middle part of the seesaw is hingedly arranged on the mounting seat, the two ends of the seesaw are respectively a first end and a second end, the rod end of the T-shaped locking rod is against the first end of the seesaw, and an oil cylinder is arranged on the mounting seat, and the output of the oil cylinder A push rod acting on the second end of the seesaw is correspondingly provided at the output end, and when the cylinder is filled with oil, the push rod presses the second end of the seesaw and causes the seesaw to hinge and rotate. After the seesaw is hinged and rotated, the first end of the seesaw pushes the T-shaped locking rod to overcome the force of the compression spring for axial movement, and causes the flat rod head to disengage from the limiting groove of the rotating seat, and the rotating seat and the mounting seat lose the limiting locking; when the cylinder is drained of oil, the T-shaped locking rod pushes the seesaw to hinge and rotate in the opposite direction under the action of the compression spring, and causes the flat rod head to be inserted into the limiting groove of the rotating seat, and the rotating seat and the mounting seat achieve limiting locking.
3. The multifunctional external thread compound grinding machine according to claim 2, characterized in that: A rotary drive mechanism is arranged on the rotating seat, and the rotary drive mechanism comprises a first motor, a worm wheel and a worm. The worm wheel is mounted on the rotating seat, and the worm is rotatably arranged on the mounting seat and connected to the first motor for driving its rotation. The worm wheel and the worm form a linkage fit.
4. The multifunctional external thread compound grinding machine according to claim 1, 2 or 3, characterized in that: The mobile driving mechanism includes a second motor and a third motor. An X-axis guide rail extending along the X-axis direction and a Y-axis guide rail extending along the Y-axis direction are arranged on the machine body. The fixture mounting plate is slidably arranged on the X-axis guide rail and is connected to a second motor for driving it to slide along the X-axis direction. The central axis of the workpiece is also in the X-axis direction. The mounting seat is slidably arranged on the Y-axis guide rail and is connected to a third motor for driving it to slide along the Y-axis direction. The central axis of the rotating seat is in the Z-axis direction.
5. The multifunctional external thread compound grinding machine according to claim 1, 2 or 3, characterized in that: The thread grinding mechanism includes a thread grinding wheel, a fourth motor, and an angle driving mechanism. The angle driving mechanism includes a swinging plate, a first screw, a slider, and a fifth motor. The swinging plate is hingedly mounted on a rotating seat, and an arc track corresponding to the hinged rotation of the swinging plate is formed on the rotating seat. The first screw is rotatably arranged on the rotating seat and is connected to a fifth motor for driving the rotation thereof. The slider is mounted on the first screw and can slide linearly along the first screw. A limiting structure is arranged between the slider and the swinging plate, and through the limiting cooperation of the limiting structure, the sliding of the slider can drive the swinging plate to hinge and rotate along the arc track. A fixed seat is fixedly connected to the swinging plate, and the fourth motor is installed on the fixed seat. The thread grinding wheel is installed on the output shaft of the fourth motor and is driven to rotate by the fourth motor.
6. The multifunctional external thread compound grinding machine according to claim 5, characterized in that: The swing plate is connected with a clamping mechanism for clamping it after it swings. The clamping mechanism includes a clamping block and a clamping cylinder. The clamping block is set on an arc track along a straight line and is located on one side of the swing plate. The clamping block is installed on the output end of the clamping cylinder.
7. The multifunctional external thread compound grinding machine according to claim 5, characterized in that: The thread grinding mechanism also includes a dressing wheel, a slide plate, a second screw, a sixth motor, and a seventh motor. The second screw is rotatably arranged on a fixed seat and is connected to a sixth motor for driving it to rotate. The slide plate is slidably arranged on the fixed seat and forms a linkage with the second screw. The seventh motor is fixedly mounted on the slide plate. The dressing wheel is mounted on the output shaft of the seventh motor and is driven to rotate by the seventh motor. After the dressing wheel moves up and down, it can form a tangential abutment with the thread grinding wheel.
8. The multifunctional external thread compound grinding machine according to claim 5, characterized in that: The limiting structure comprises a convex block and a concave groove which are matched and plugged together, and the convex block and the concave groove are respectively arranged on the swing plate and the sliding block.
9. The multifunctional external thread compound grinding machine according to claim 1, 2 or 3, characterized in that: The external cylindrical grinding mechanism comprises an external cylindrical grinding wheel and an eighth motor. The eighth motor is fixedly mounted on a rotating seat. The external cylindrical grinding wheel is mounted on an output shaft of the eighth motor and is driven to rotate by the eighth motor.