A high-precision processing device and method for long lead screw

Abstract

The present invention provides a long lead screw high-precision processing device and method, the long lead screw high-precision processing device includes a base, a transmission lead screw, an execution part, a sensor component, a first control system and a processing part; the transmission lead screw includes a first transmission lead screw and a second transmission lead screw, the execution part includes an execution base, an execution bracket and an execution arm, the execution base is movably connected to the first transmission lead screw, the execution bracket is arranged on the execution base, the execution arm is arranged on the execution bracket, the execution arm includes a first execution arm and a second execution arm, the sensor component is arranged on the execution base, the sensor component and the execution part are communicated and connected through the first control system, the first control system receives the electrical signal of the sensor component and controls the movement of the execution part, the processing part is movably connected to the second transmission lead screw, and the processing part is arranged relative to the execution part. The present invention can realize that the long lead screw is subjected to a balanced force during the processing process, so as to have less deformation and no processing rebound phenomenon, and solves the problem that the accuracy of the lead screw does not meet the standard due to deformation and rebound during the processing process.

Description

Technical Field

[0001] The present invention relates to the technical field of lead screw processing, and in particular to a device and method for high-precision processing of a long lead screw. Background Art

[0002] The existing long lead screw fine grinding technology is generally processed by adding support points during processing and grinding. The number and spacing of the support points are set differently by different operators. Generally, the distance between the two support points is about 500mm, and the diameter range of the processed lead screw is generally about 20-100mm. During precision grinding, tools such as grinding wheels will apply torque to the lead screw to cause deformation of the lead screw. After the external processing force is removed, the lead screw will rebound, but there will still be irreversible slight deformation. For high-precision lead screw processing, the deformation and rebound behavior of the lead screw during the processing process will affect the roundness, straightness and other form and position tolerances of the lead screw and the key product indicators such as lead accuracy, which will inevitably lead to serious consequences such as the long lead screw accuracy not meeting the standard or the product cannot be straightened and scrapped.

[0003] It can be seen that the changes in accuracy, size and form and position tolerances caused by deformation and springback during the processing of long lead screws are the bottleneck of high-precision processing of long lead screws, and it is urgent to find appropriate measures to solve the problem. Summary of the invention

[0004] The invention solves the problem that the precision is not up to standard due to deformation and rebound of the lead screw during processing.

[0005] In order to solve the above problems, the present invention provides a long lead screw high-precision processing device and method, wherein the long lead screw high-precision processing device includes a base, a transmission screw, an actuator, a sensor component, a first control system and a processing part, the transmission screw includes a first transmission screw and a second transmission screw, the actuator includes an actuator base, an actuator bracket and an actuator arm, the actuator base is movably connected to the first transmission screw, the actuator bracket is arranged on the actuator base, the actuator arm is arranged on the actuator bracket, the actuator arm includes a first actuator arm and a second actuator arm, the sensor component is arranged on the actuator base, the sensor component and the actuator are communicatively connected through the first control system, the first control system receives the electrical signal of the sensor component and controls the movement of the actuator, the processing part is movably connected to the second transmission screw, and the processing part and the actuator are arranged relative to each other.

[0006] Compared with the prior art, the technical effect achieved by this solution is: the first transmission screw is movably connected to the execution base to guide the movement of the execution base, the second transmission screw is movably connected to the processing part to guide the movement of the processing part, the execution base supports the execution part, the execution bracket supports the execution arm, the execution arm is used to support the workpiece to be processed, the first execution arm provides support in a direction parallel to the execution bracket, and the second execution arm provides support in a direction perpendicular to the execution bracket, providing support for the workpiece to be processed from multiple directions, so that the force applied to the workpiece to be processed during the processing can be better offset, the sensor component is used to detect in real time the force applied to the workpiece to be processed from the processing part during the processing, the first control system is used to receive an electrical signal related to the force detected by the sensor component, and control the movement of the execution arm according to the electrical signal, the execution arm applies a reaction force to the workpiece to offset the force applied to the workpiece from the processing part, and effectively prevent the workpiece from being deformed during the processing, thereby realizing stress-free processing of the workpiece.

[0007] Furthermore, the first transmission screw is connected to a first transmission motor, and the second transmission screw is connected to a second transmission motor. The first transmission motor and the second transmission motor are communicatively connected via a second control system, and the second control system controls the first transmission motor and the second transmission motor to move synchronously.

[0008] Compared with the prior art, the technical effect achieved by this solution is: the first transmission motor drives the first transmission screw to move, the second transmission motor drives the second transmission screw to move, and the second control system ensures that the first transmission motor and the second transmission motor move synchronously, thereby realizing the intelligent follow-up function of the execution part and the processing part.

[0009] Furthermore, the executing part also includes a first executing electric cylinder and a second executing electric cylinder, the first executing arm is connected to the first executing electric cylinder, the second executing arm is connected to the second executing electric cylinder, and the first executing electric cylinder and / or the second executing electric cylinder are communicatively connected to the sensor component through a first control system.

[0010] Compared with the prior art, the technical effect achieved by the present solution is: the first actuator electric cylinder converts the movement in the rotation direction of the motor into reciprocating movement in a linear direction, the first actuator electric cylinder drives the first actuator arm to move, the second actuator electric cylinder converts the movement in the rotation direction of the motor into reciprocating movement in a linear direction, the second actuator electric cylinder drives the second actuator arm to move, the first control system receives the electrical signal of the sensor component and controls the operation of the first actuator electric cylinder and / or the second actuator electric cylinder, thereby controlling the magnitude of the reaction force applied by the first actuator arm and / or the second actuator arm on the workpiece, and realizing intelligent adjustment of the force applied by the actuator.

[0011] Further, the first actuator arm includes a first supporting portion and a first contact portion, the first supporting portion is used to support the workpiece, and the first contact portion has a buffering effect, and / or the second actuator arm includes a second supporting portion and a second contact portion, the second supporting portion is used to support the workpiece, and the second contact portion has a buffering effect.

[0012] Compared with the prior art, the technical effect achieved by this solution is: the first support portion and the second support portion are used to evenly disperse the force of the actuator arm, make the force applied evenly, and provide support for the workpiece; the first contact portion and the second contact portion provide a buffer on the contact surface between the actuator arm and the workpiece, so that the contact between the actuator arm and the workpiece when force is applied is softer and does not damage the workpiece.

[0013] Furthermore, a first mounting portion and a second mounting portion are provided on the execution bracket, the first execution arm cooperates with the first mounting portion, and the second execution arm cooperates with the second mounting portion.

[0014] Compared with the prior art, the technical effect achieved by this solution is: the first mounting portion and the second mounting portion are used to further fix the position of the actuator arm, strengthen the connection between the actuator arm and the actuator bracket, and enable the actuator arm to provide more stable reaction force support for the workpiece during operation.

[0015] Furthermore, the execution parts are arranged on both sides of the sensor component, and the spacing between the execution parts is greater than the thickness of the processing part.

[0016] Compared with the prior art, the technical effect achieved by this solution is: if the actuator is only set on one side of the sensor component, there is a distance difference between the detection position of the sensor component and the force application position of the actuator arm on the actuator, and the actuator can only provide unilateral support, which may result in failure to provide appropriate and effective support for the workpiece. Therefore, the actuator is set on both sides of the sensor component, thereby further providing support for the processed part of the workpiece, and making the force application more uniform and accurate.

[0017] Furthermore, the long lead screw high-precision processing device also includes a workpiece fixing part and a tailstock, the workpiece fixing part is arranged on the base, a clamping piece is provided on the workpiece fixing part, the tailstock is movably connected to the base, and the workpiece fixing part and the tailstock are located on the same axis.

[0018] Compared with the prior art, the technical effect achieved by this scheme is: the workpiece fixing part is used to fix one end of the workpiece to be processed, one end of the workpiece to be processed is clamped with the clamping part, and the other end is fixed against the tailstock, thereby clamping and fixing the workpiece to be processed on the long lead screw high-precision processing device, thereby achieving stable processing of the workpiece to be processed.

[0019] Furthermore, the clamping member includes an adjusting member and a fastening member, the fastening member is provided with an adjusting member mounting portion, and the adjusting member cooperates with the adjusting member mounting portion.

[0020] Preferably, the adjusting member is a screw rod, and a thread matching the screw rod is provided in the mounting portion of the adjusting member, and the abutment strength between the fastener and the workpiece can be adjusted by rotation.

[0021] Preferably, the side of the fastener in contact with the workpiece has a curved surface structure, which can increase the contact area with the workpiece and optimize the clamping effect of the fastener when clamping the workpiece.

[0022] Compared with the prior art, the technical effect achieved by this solution is: the clamping part as a whole has an adjustable function, which can adapt to the clamping work of workpieces with different diameters, so that the long lead screw high-precision processing device can process workpieces with a variety of different diameters.

[0023] A method for high-precision machining of a long lead screw can be implemented by the device described in any of the above technical solutions. The specific machining method includes:

[0024] Clamp the lead screw to be processed, fix one end of the lead screw to be processed by a clamping piece on the workpiece fixing part, and fix the other end by abutting against the tailstock;

[0025] The processing part is close to the lead screw, the execution part is close to the lead screw, the execution arm in the execution part contacts the lead screw, and the processing part is located on the opposite side of the sensor component and in the middle of the execution arm;

[0026] When the processing part starts processing, the sensor component detects the magnitude and direction of the force applied to the lead screw in real time, and transmits the relevant force information to the first control system. The first control system outputs a signal to the actuator cylinder, which drives the actuator arm to move, exerting a reaction force on the lead screw to balance and offset the action force.

[0027] The second control system controls the first transmission motor and the second transmission motor to keep the execution part on the first transmission screw and the processing part on the second transmission screw moving synchronously until the processing is completed;

[0028] After the processing is completed, the processing part leaves the lead screw first, and the execution part leaves the lead screw later. In the process of the processing part leaving the lead screw, the force on the lead screw decreases, the sensor component detects the force information of the lead screw in real time and feeds it back to the first control system, the first control system controls the execution electric cylinder to drive the execution arm to move, and the reaction force applied by the execution arm to the lead screw decreases until the reaction force applied is zero, and the execution part leaves the lead screw;

[0029] Remove the lead screw.

[0030] Compared with the prior art, the technical effect achieved by this scheme is: a reaction force is applied to the processed lead screw during the processing process through the sensor component and the actuator, thereby offsetting the force from the processing part that the processed lead screw is subjected to during the processing, so that the lead screw as a whole is subjected to a pair of balanced forces during the processing, and thus there is almost no deformation, and no rebound behavior after the processing is completed, thereby avoiding the situation where the precision of the processed lead screw is inaccurate due to deformation; the actuator can move with the processing part, which can make the force applied during grinding wheel processing more uniform and consistent, and will also have a beneficial effect on the high-precision processing of the lead screw; the processing part leaves the lead screw first, and the actuator and the sensor component keep working, so that when the processing part finishes work and retreats, the force on the workpiece is still in a balanced state, avoiding the situation where the processed lead screw is subjected to uneven force and deformation due to the synchronous retreat of the processing part and the actuator, thereby ensuring high precision and stability of the processing.

[0031] Preferably, the processing part is a grinding wheel. The spacing of the execution parts is greater than the width of the grinding wheel, specifically 30 mm.

[0032] Compared with the prior art, the technical effect achieved by this solution is: the force applied during grinding wheel processing is more uniform, the grinding effect is good, the spacing between the actuators is 30mm, compared with 500mm in the prior art, the 30mm setting spacing makes the force application part more concentrated and compact, which can reduce the deformation of the workpiece caused by the large support spacing of the actuators and the dispersion of the force points on the workpiece during the processing, and is more conducive to high-precision processing of the workpiece under the conditions of a pair of balanced forces between the action force of the processing part and the reaction force of the actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is the overall diagram of the long lead screw high-precision processing device;

[0034] Figure 2 It is the assembly diagram of the base and the transmission screw;

[0035] Figure 3 It is a schematic diagram of the assembly of the sensor component and the actuator;

[0036] Figure 4 It is the overall diagram of the execution arm;

[0037] Figure 5 It is a schematic diagram of the structure of the execution bracket;

[0038] Figure 6 It is the front view of the workpiece fixing part;

[0039] Figure 7 It is the overall picture of the fastener;

[0040] Figure 8 This is a flow chart of the high-precision processing method for long lead screws.

[0041] Description of reference numerals:

[0042] 10-base; 20-drive screw; 21-first drive screw; 22-second drive screw; 23-first drive motor; 24-second drive motor; 30-actuator; 31-actuator base; 32-actuator bracket; 321-first mounting portion; 322-second mounting portion; 33-actuator arm; 331-first actuator arm; 332-second actuator arm; 333-first actuator electric cylinder; 334-second actuator electric cylinder; 301-first supporting portion; 309-first contact portion; 302-second supporting portion; 308-second contact portion; 40-sensor assembly; 50-machining portion; 60-workpiece fixing portion; 61-clamping piece; 611-adjusting piece; 612-fastener; 609-adjusting piece mounting portion; 70-against the tailstock. DETAILED DESCRIPTION

[0043] The object of the present invention is to provide a high-precision processing device and method for a long lead screw, which is used to keep the key parameters of the lead screw such as roundness, straightness, stroke, etc. unchanged or slightly changed before and after processing, and finally achieve the effect of high-precision and stable processing of the long lead screw.

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0045] See also Figure 1 , Figure 2 and Figure 3 The present invention provides a long lead screw high-precision processing device and method, wherein the long lead screw high-precision processing device includes a base 10, a transmission screw 20, an actuator 30, a sensor component 40, a first control system and a processing part 50, the transmission screw 20 includes a first transmission screw 21 and a second transmission screw 22, the actuator 30 includes an actuator base 31, an actuator bracket 32 ​​and an actuator arm 33, the actuator base 31 is movably connected to the first transmission screw 21, the actuator bracket 32 ​​is arranged on the actuator base 31, the actuator arm 33 is arranged on the actuator bracket 32, the actuator arm 33 includes a first actuator arm 331 and a second actuator arm 332, the sensor component 40 is arranged on the actuator base 31, the sensor component 40 and the actuator 30 are communicatively connected through the first control system, the first control system receives the electrical signal of the sensor component 40, and controls the movement of the actuator 30, the processing part 50 is movably connected to the second transmission screw 22, and the processing part 50 and the actuator 30 are arranged relative to each other.

[0046] The first transmission screw 21 is movably connected to the execution base 31 to guide the movement of the execution base 31. The second transmission screw 22 is movably connected to the processing part 50 to guide the movement of the processing part 50. The execution base 31 supports the execution part 30. The execution bracket 32 ​​supports the execution arm 33. The execution arm 33 is used to support the workpiece to be processed. The first execution arm 331 provides support in a direction parallel to the execution bracket 32, and the second execution arm 332 provides support in a direction perpendicular to the execution bracket 32. Support is provided for the workpiece to be processed from multiple directions, so that the force applied to the workpiece to be processed during the processing can be better offset. The sensor component 40 is used to detect in real time the force applied to the workpiece to be processed from the processing part 50 during the processing. The first control system is used to receive an electrical signal related to the force detected by the sensor component 40, and control the movement of the execution arm 33 according to the electrical signal. The execution arm 33 applies a reaction force to the workpiece to offset the force applied to the workpiece from the processing part 50, effectively preventing the workpiece from being deformed during the processing, thereby achieving stress-free processing of the workpiece.

[0047] like Figure 2 As shown, the first transmission screw 21 is also connected to the first transmission motor 23, and the second transmission screw 22 is also connected to the second transmission motor 24. The first transmission motor 23 and the second transmission motor 24 are communicatively connected via a second control system, and the second control system controls the first transmission motor 23 and the second transmission motor 24 to move synchronously.

[0048] Preferably, one end of the first transmission screw 21 is connected to the first transmission motor 23 and the other end is connected to a limiter, and one end of the second transmission screw 22 is connected to the second transmission motor 24 and the other end is connected to a limiter to achieve stable rotation.

[0049] The first transmission motor 23 drives the first transmission screw 21 to move, and the second transmission motor 24 drives the second transmission screw 22 to move. The second control system ensures that the first transmission motor 23 and the second transmission motor 21 move synchronously, thereby realizing the intelligent follow-up function of the execution part 30 and the processing part 50.

[0050] like Figure 3 As shown, the actuator 30 also includes a first actuator electric cylinder 333 and a second actuator electric cylinder 334, the first actuator arm 331 is connected to the first actuator electric cylinder 333, the second actuator arm 332 is connected to the second actuator electric cylinder 334, and the first actuator electric cylinder 333 and / or the second actuator electric cylinder 334 are communicatively connected to the sensor component 40 through the first control system.

[0051] The first actuator electric cylinder 333 converts the movement in the rotation direction of the motor into reciprocating movement in a linear direction, and the first actuator electric cylinder 333 drives the first actuator arm 331 to move. The second actuator electric cylinder 334 converts the movement in the rotation direction of the motor into reciprocating movement in a linear direction, and the second actuator electric cylinder 334 drives the second actuator arm 332 to move. The first control system receives the electrical signal of the sensor component 40 and controls the operation of the first actuator electric cylinder 333 and / or the second actuator electric cylinder 334, thereby controlling the magnitude of the reaction force applied by the first actuator arm 331 and / or the second actuator arm 332 on the workpiece, thereby realizing intelligent adjustment of the force applied by the actuator 30.

[0052] like Figure 4 As shown, the first actuator arm 331 includes a first supporting portion 301 and a first contact portion 309, the first supporting portion 301 is used to support the workpiece, and the first contact portion 309 has a buffering effect, and / or the second actuator arm 332 includes a second supporting portion 302 and a second contact portion 308, the second supporting portion 302 is used to support the workpiece, and the second contact portion 308 has a buffering effect.

[0053] Specifically, the first support portion 301 and / or the second support portion 302 has an arc-shaped curved structure, the first contact portion 309 is provided at both ends of the first support portion 301, and the first contact portion 309 has a wheel-shaped structure, and / or the second contact portion 308 is provided at both ends of the second support portion 302, and the second contact portion 308 has a wheel-shaped structure.

[0054] The first support portion 301 and the second support portion 302 are used to evenly disperse the force of the actuator arm 33, so that the force is evenly applied and provide support for the workpiece. The first contact portion 309 and the second contact portion 308 provide a buffer on the contact surface between the actuator arm 33 and the workpiece, so that the contact between the actuator arm 33 and the workpiece is softer when force is applied without damaging the workpiece.

[0055] like Figure 3 and Figure 5 As shown, the execution bracket 32 ​​is further provided with a first mounting portion 321 and a second mounting portion 322 , the first execution arm 331 cooperates with the first mounting portion 321 , and the second execution arm 332 cooperates with the second mounting portion 322 .

[0056] The first mounting portion 321 and the second mounting portion 322 are used to further fix the position of the actuator arm 33 and strengthen the connection between the actuator arm 33 and the actuator bracket 32, so that the actuator arm 33 can provide reaction force support for the workpiece more stably during operation.

[0057] Refer again Figure 3 The execution parts 30 are arranged on both sides of the sensor component 40 , and the spacing between the execution parts 30 is greater than the thickness of the processing part 50 .

[0058] If the actuator 30 is only arranged on one side of the sensor assembly 40, there is a distance difference between the detection position of the sensor assembly 40 and the force application position of the actuator arm 33 on the actuator 30, and the actuator 30 can only provide single-sided support, which may result in failure to provide appropriate and effective support for the workpiece. Therefore, the actuator 30 is arranged on both sides of the sensor assembly 40, thereby further supporting the processed part of the workpiece and making the force application more uniform and accurate.

[0059] like Figure 1 and Figure 6 As shown, the long lead screw high-precision processing device also includes a workpiece fixing part 60 and a tailstock 70. The workpiece fixing part 60 is arranged on the base 10. A clamping part 61 is provided on the workpiece fixing part 60. The tailstock 70 is movably connected to the base 10. The workpiece fixing part 60 and the tailstock 70 are located on the same axis.

[0060] Specifically, the workpiece fixing portion 60 has a circular structure that can be rotated around an axis, and there is a coaxial through hole on the workpiece fixing portion 60, and the clamping parts 61 are distributed circumferentially around the through hole. In order to achieve a good fixing effect of the workpiece fixing portion 60, preferably, the number of the clamping parts 61 is at least two. Considering the convenience of clamping the workpiece, preferably, the number of the clamping parts 61 does not exceed five.

[0061] The workpiece fixing part 60 is used to fix one end of the workpiece being processed. One end of the workpiece is clamped with the clamping part 61, and the other end is fixed against the tailstock 70, thereby clamping and fixing the workpiece on the long screw high-precision processing device to achieve stable processing of the workpiece.

[0062] like Figure 6 and Figure 7 As shown, the clamping member 61 includes an adjusting member 611 and a fastening member 612 . The fastening member 612 is provided with an adjusting member mounting portion 609 , and the adjusting member 611 cooperates with the adjusting member mounting portion 609 .

[0063] Preferably, the adjusting member 611 is a screw rod, and a thread matching the screw rod is provided in the adjusting member mounting portion 609 , so that the abutment strength between the fastener 612 and the workpiece can be adjusted by rotation.

[0064] Preferably, the side of the fastener 612 that contacts the workpiece has a curved surface structure, which can increase the contact area with the workpiece and optimize the clamping effect of the fastener 612 when clamping the workpiece.

[0065] In order to make the clamping member 61 achieve a better clamping effect,

[0066] Through the cooperation between the adjusting member 611 and the fastener 612, the clamping member 61 as a whole has an adjustable function, which can adapt to the clamping work of workpieces with different diameters, so that the long screw high-precision processing device can process workpieces with a variety of different diameters.

[0067] like Figure 8 As shown, a processing method for high-precision processing of a long lead screw can be implemented by the device described in any of the above-mentioned technical solutions, and the specific processing method includes: clamping the lead screw to be processed, fixing one end of the lead screw to be processed by a clamping piece on the workpiece fixing part, and fixing the other end by abutting against the tailstock; the processing part is close to the lead screw, the execution part is close to the lead screw, the execution arm in the execution part contacts the lead screw, and the processing part is located on the opposite side of the sensor component and in the middle of the execution arm; the processing part starts processing, and the sensor component detects the magnitude and direction information of the force applied to the lead screw during processing in real time, and the relevant force information is transmitted to the first control system, and the first control system outputs a signal to the execution electric cylinder, and the execution electric cylinder drives the execution arm to move, and applies a reaction force to the lead screw to balance and offset the action force; the second control system controls the first transmission motor and the second transmission motor to keep the execution part on the first transmission lead screw and the processing part on the second transmission lead screw moving synchronously until the processing is completed; after the processing is completed, the processing part leaves the lead screw first, and the execution part leaves the lead screw later; the lead screw is disassembled.

[0068] Preferably, the lead screw to be processed is clamped, one end of the lead screw to be processed is fixed by a clamping piece on the workpiece fixing portion, and the other end is fixed by abutting against the tailstock, specifically comprising: firstly, the adjusting piece 611 in the clamping piece 61 is rotated to loosen the fastener 612 enough to allow the processed lead screw to pass through, and after the processed lead screw is placed between the fasteners 612, the adjusting piece 611 is rotated again to make the fastener 612 press against the processed lead screw, thereby clamping one end of the processed lead screw on the workpiece fixing portion 60, and pushing the lead screw against the tailstock 70 in the direction of the processed lead screw until the tailstock 70 is in abutment with the workpiece, thereby completing the overall clamping and fixation of the processed lead screw.

[0069] Preferably, the processing part is close to the lead screw, the executing part is close to the lead screw, the executing arm in the executing part contacts the lead screw, the processing part is located on the opposite side of the sensor component and in the middle of the executing arm, specifically including: the processing part 50 contacts the processed lead screw first, and the executing arm 33 in the executing part 30 also contacts the processed lead screw subsequently but does not apply any force, at which time the processing part 50 is facing the sensor component 40 and is located at the midpoint of the spacing set by the executing part 30.

[0070] Preferably, when the processing part starts processing, the sensor component detects the magnitude and direction information of the force applied to the lead screw during processing in real time, and the relevant force information is transmitted to the first control system. The first control system outputs a signal to the actuator cylinder, and the actuator cylinder drives the actuator arm to move, and applies a reaction force to the lead screw to balance and offset the force. Specifically, the equipment used in the embodiment of the method is provided with a first actuator arm 331 and a second actuator arm 332, and the first actuator arm 331 provides support in a direction parallel to the actuator bracket 32, and the second actuator arm 332 provides support in a direction perpendicular to the actuator bracket 32. When the processing part 50 is processed, the sensor component 40 can detect the magnitude and direction information of the force applied to the processed lead screw in a direction parallel to the actuator bracket 32 ​​and a direction perpendicular to the actuator bracket 32 ​​in real time. After the relevant information is processed by the first control system, the first control system controls the movement of the first actuator cylinder 333 and the second actuator cylinder 334, thereby controlling the movement of the first actuator arm 331 and the second actuator arm 332, and adjusting the magnitude of the reaction force applied by the actuator arm 33 according to the magnitude of the force applied to the processed lead screw to offset the force from the processing part 50.

[0071] Preferably, the second control system controls the first transmission motor and the second transmission motor to keep the actuator on the first transmission screw and the processing part on the second transmission screw moving synchronously until the processing is completed, specifically including: the second control system controls the first transmission motor 23 and the second transmission motor 24 to keep the actuator 30 on the first transmission screw 21 and the processing part 50 on the second transmission screw 22 moving synchronously in the same direction, so as to achieve effective support of the processed part on the processed screw by the actuator 30 to prevent deformation of the processed screw;

[0072] Preferably, after the processing is completed, the processing part leaves the lead screw first, and the execution part leaves the lead screw later, specifically including: after the processing is completed, the processing part 50 leaves the lead screw first, and in the process of the processing part 50 leaving the lead screw, the force on the lead screw is reduced, the sensor component 40 detects the force information of the lead screw in real time and feeds it back to the first control system, the first control system controls the first execution electric cylinder 333 and the second execution electric cylinder 334 to drive the first execution arm 331 and the second execution arm 332 to move, so that the reaction force applied by the execution arm 33 to the lead screw is reduced, until the applied reaction force is zero, at which time the execution part 30 leaves the lead screw;

[0073] Preferably, disassembling the screw specifically includes: pushing the abutting tailstock 70 toward the side away from the processed screw to release the abutment between the abutting tailstock 70 and the processed screw, rotating the adjusting member 611 to release the abutment and clamping connection between the fastener 612 and the processed screw, and removing the processed screw from the side close to the abutting tailstock 70 to complete the disassembly.

[0074] The sensor assembly 40 and the actuator 30 are used to apply a reaction force to the processed lead screw during the processing, thereby offsetting the force from the processing unit 50 on the processed lead screw during the processing, so that the lead screw as a whole is subjected to a pair of balanced forces during the processing, and thus there is almost no deformation, and no rebound behavior after the processing is completed, thereby avoiding the situation where the precision of the processed lead screw is inaccurate due to deformation. The processing unit 50 and the actuator 30 have a follow-up effect, which can ensure the overall complete processing of the processed lead screw.

[0075] The processing part 50 leaves the lead screw first, and the execution part 30 and the sensor assembly 40 keep working, so that when the processing part 50 finishes work and retreats, the force on the processed lead screw is still in a balanced state, avoiding the uneven force and deformation of the workpiece that may be caused by the synchronous retreat of the processing part 50 and the execution part 30.

[0076] Furthermore, the processing part 50 is a grinding wheel. The spacing of the execution part 30 is larger than the width of the grinding wheel, specifically 30 mm. During grinding wheel processing, the force is applied more evenly and the grinding effect is good. The spacing of the execution part 30 is 30 mm. Compared with the support spacing of 500 mm in the prior art, the force application part of the 30 mm spacing is more concentrated and compact, which can reduce the deformation of the workpiece caused by the dispersion of the force points on the workpiece due to the excessively large support spacing of the execution part 30, and is more conducive to the high-precision processing of the workpiece under the condition of a pair of balanced forces of the action force of the processing part 50 and the reaction force of the execution part 30.

[0077] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A high-precision processing device for a long lead screw, characterized in that: A processing method for performing high-precision processing of a long lead screw, wherein the high-precision processing device for the long lead screw comprises a base, a transmission lead screw, an actuator, a sensor assembly, a first control system and a processing unit; The transmission screw comprises a first transmission screw and a second transmission screw, the execution part comprises an execution base, an execution bracket and an execution arm, the execution base is movably connected to the first transmission screw, the execution bracket is arranged on the execution base, the execution arm is arranged on the execution bracket, the execution arm comprises a first execution arm and a second execution arm, the sensor component is arranged on the execution base, the sensor component and the execution part are communicatively connected through the first control system, the first control system receives the electrical signal of the sensor component and controls the movement of the execution part, the processing part is movably connected to the second transmission screw, and the processing part and the execution part are arranged opposite to each other; The first transmission screw is also connected to a first transmission motor; The second transmission screw is also connected to a second transmission motor; The first transmission motor and the second transmission motor are communicatively connected via a second control system, and the second control system controls the first transmission motor and the second transmission motor to move synchronously; The execution unit further includes a first execution electric cylinder and a second execution electric cylinder; The first actuator arm is connected to the first actuator electric cylinder; The second actuator arm is connected to the second actuator electric cylinder; The first actuator electric cylinder and / or the second actuator electric cylinder is communicatively connected with the sensor component via the first control system; The long lead screw high-precision processing device also includes a workpiece fixing portion, which is arranged on the base and has a clamping member on the workpiece fixing portion; An abutting tailstock, the abutting tailstock being movably connected to the base; The workpiece fixing portion and the tailstock are located on the same axis; The high-precision processing method of the long lead screw comprises the following steps: Clamp the lead screw to be processed, fix one end of the lead screw to be processed by a clamping piece on the workpiece fixing part, and fix the other end by abutting against the tailstock; The processing part is close to the lead screw, the execution part is close to the lead screw, the execution arm in the execution part contacts the lead screw, and the processing part is located on the opposite side of the sensor component and in the middle of the execution arm; When the processing part starts processing, the sensor component detects the magnitude and direction of the force applied to the lead screw in real time, and transmits the relevant force information to the first control system. The first control system outputs a signal to the actuator cylinder, which drives the actuator arm to move, exerting a reaction force on the lead screw to balance and offset the action force. The second control system controls the first transmission motor and the second transmission motor to keep the execution part on the first transmission screw and the processing part on the second transmission screw moving synchronously until the processing is completed; After the processing is completed, the processing part leaves the lead screw first, and the execution part leaves the lead screw later; Remove the lead screw; After the processing is completed, the processing part first leaves the lead screw, and the execution part then leaves the lead screw, which specifically includes: When the processing part leaves the lead screw, the force acting on the lead screw decreases, and the sensor component detects the force information of the lead screw in real time and feeds back to the first control system. The first control system controls the actuator cylinder to drive the actuator arm to move, and the reaction force applied by the actuator arm to the lead screw decreases until the applied reaction force is zero. At this time, the actuator separates from the lead screw.

2. The long lead screw high-precision processing device according to claim 1, characterized in that: The first actuator arm comprises a first supporting portion and a first contact portion, the first supporting portion is used to support the workpiece, and the first contact portion has a buffering effect; And / or, the second actuator arm includes a second supporting portion and a second contact portion, the second supporting portion is used to support the workpiece, and the second contact portion has a buffering effect.

3. The long lead screw high-precision processing device according to claim 2, characterized in that: The execution bracket is also provided with a first mounting portion and a second mounting portion; The first actuator arm cooperates with the first mounting portion; The second actuator arm cooperates with the second mounting portion.

4. The long lead screw high-precision processing device according to claim 3, characterized in that: The execution parts are arranged on both sides of the sensor component, and the spacing between the execution parts is greater than the thickness of the processing part.

5. The long lead screw high-precision processing device according to claim 1, characterized in that: The clamping member comprises an adjusting member and a fastening member, the fastening member is provided with an adjusting member mounting portion, and the adjusting member cooperates with the adjusting member mounting portion.

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