Adjustable multi-thread processing and finishing workbench

Abstract

The present invention relates to the technical field of grinding machines, and is an adjustable multi-thread thread processing and finishing workbench, which includes a thread grinding workbench and a finishing workbench spaced apart from each other on the left and right sides. The thread grinding workbench includes a thread grinder, a first drive device, a second drive device, and a lower support plate, a middle support plate, and an upper support plate spaced apart from each other from bottom to top. A first drive device is provided between the lower support plate and the middle support plate, which enables the middle support plate to move forward and backward relative to the lower support plate. A second drive device is provided between the middle support plate and the upper support plate, which enables the upper support plate to move left and right relative to the middle support plate. The present invention has a reasonable and compact structure and is easy to use. By providing the first drive device and the second drive device, the position of the thread grinder can be adjusted to meet the needs of different thread processing. By providing an AE sensor on the main shaft of the thread grinder, the state of the thread processing grinding wheel can be monitored in real time. By providing a thread finishing grinder, the thread processing grinding wheel can be online dressed after wear, and has the characteristics of stability, reliability, and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of grinding machines and relates to an adjustable multi-thread processing and finishing workbench. Background Art

[0002] Cutting tool materials, shapes, and coating technologies are constantly evolving, with some manufacturers even developing tools with specialized geometries. This requires CNC tool grinders, the core manufacturing equipment for modern cutting tools, to possess not only conventional grinding capabilities but also diverse capabilities such as pressure grinding.

[0003] With the rapid development of modern manufacturing, customers are increasingly demanding high-quality and stable products. At the same time, difficult-to-machine materials, such as special alloys, composite materials, or combinations of these, are increasingly being used in new-generation products. This places higher demands on tool manufacturers, and tool research and development is undergoing significant changes.

[0004] The patent document with announcement number CN213438639U discloses a combination grinder for standard tool processing that can simultaneously process multiple standard tools. The grinder includes a base, a machining spindle body is provided at the center of the top surface of the base, the machining spindle body is rotatably connected to the base, the machining spindle body includes multiple side surfaces, and each side surface is provided with a clamping portion for clamping the workpiece, and the base is provided with cutting portions of different machining angles corresponding to the number of side surfaces of the machining spindle body on the periphery of the machining spindle body; the machining spindle body rotates at the bottom to cooperate with different cutting portions to simultaneously process the workpiece clamped in the cutting portion; a robotic arm is provided on one side of the base for switching between the workpiece that has been cut and the workpiece that has not been cut; the machining spindle body switches different cutting portions by rotating to switch different cutting processes of the workpiece clamped on each surface, and the cutting time of the cutting portion with the longest processing time for each side surface is used as the switching interval.

[0005] Patent document with announcement number CN209681870U discloses a six-station rotary multifunctional fully automatic digital grinding machine device, which is provided with a frame assembly, and a rotary indexing assembly is provided at the upper end of the frame assembly. With the rotary indexing assembly as the center of the circle, the surface grinding assembly, the left chamfering assembly, the slotting assembly, the automatic loading assembly and the automatic unloading assembly, and the right chamfering assembly are equally arranged at a 60° angle between the center lines of each other.

[0006] Patent document with publication number CN110977716A discloses a multi-station turret horizontal grinder, which includes a working head, a grinding mechanism and a sand dressing mechanism; the working head includes a working head base, a first DD motor and a working head assembly; the first DD motor is fixed above the working head base; the working head assembly is installed above the first DD motor; the sand dressing mechanism is arranged in parallel on the right side of the working head; the grinding mechanism is arranged in front of the working head and the sand dressing mechanism, including an X-axis linear drive assembly, a Y-axis linear drive assembly, a second DD motor, a rotating plate, four groups of grinding assemblies and a probe; the Y-axis linear drive assembly is installed at the power output end of the X-axis linear drive assembly; the second DD motor is installed at the power output end of the Y-axis linear drive assembly; the rotating plate is installed at the power output end above the second DD motor; the four groups of grinding assemblies are respectively installed at the four corners of the rotating plate; the probe is installed on one side of the rotating plate.

[0007] When existing tools are used to process thread grooves, the thread grinding station they use cannot process different threads. After the grinding wheel is worn, the grinding wheel can only be removed and trimmed offline, which affects the processing efficiency and makes it difficult to achieve unmanned operation. Summary of the Invention

[0008] The present invention provides an adjustable multi-thread thread processing and trimming workbench, which overcomes the shortcomings of the above-mentioned existing technology. It can effectively solve the problem that the existing thread groove processing station cannot meet the processing needs of different threads, and can further solve the problem that the existing thread groove processing station can only perform offline trimming after the grinding wheel is worn.

[0009] The technical solution of the present invention is achieved through the following measures: an adjustable multi-thread thread processing and finishing workbench includes a thread grinding workbench and a finishing workbench arranged at intervals on the left and right, the thread grinding workbench includes a thread grinder, a first drive device, a second drive device, and a lower support plate, a middle support plate and an upper support plate arranged at intervals from bottom to top, a first drive device that can move the middle support plate forward and backward relative to the lower support plate is provided between the lower support plate and the middle support plate, a second drive device that can move the upper support plate left and right relative to the middle support plate is provided between the middle support plate and the upper support plate, and a thread grinder is installed on the upper side of the upper support plate. The thread grinder is provided with a thread grinder spindle arranged in a forward and backward direction, an AE sensor is provided on the thread grinder spindle, and a thread processing grinding wheel is fixedly installed on the outer side of the rear end of the thread grinder spindle; the dressing workbench includes a frame and a thread dressing grinder, a thread dressing grinder is provided on the upper side of the frame corresponding to the position of the thread processing grinding wheel, the thread dressing grinder is provided with a thread dressing spindle arranged in a forward and backward direction, and a thread dressing grinding wheel is fixedly installed on the rear end of the thread dressing spindle; the AE sensor is connected to the control module, and the control module is respectively connected to the first drive device, the second drive device, the thread grinder and the thread dressing grinder.

[0010] The following are further optimizations and / or improvements to the above technical solutions:

[0011] The above-mentioned thread dressing grinder may include a motor housing, a thread dressing spindle, a thread dressing grinding wheel, a motor stator, a motor stator, a limiting nut, a front sealing bearing assembly, a middle sealing bearing assembly and a rear sealing bearing assembly. A dressing shaft mounting hole is provided in the motor housing, a thread dressing spindle is provided in the dressing shaft mounting hole, the front end of the thread dressing spindle is located in the front of the motor housing, a front sealing bearing assembly installed on the front side of the motor housing is provided on the outside of the front end of the thread dressing spindle, a middle sealing bearing assembly is provided on the outside of the middle part of the thread dressing spindle, the front of which is installed on the inner side of the rear end of the dressing shaft mounting hole, and the rear end of the thread dressing spindle is provided on the outside of the rear end of the motor housing; a motor rotor is installed on the outside of the thread dressing spindle corresponding to the position between the front sealing bearing assembly and the middle sealing bearing assembly, a motor stator is provided on the outside of the motor rotor, and a thread dressing grinding wheel is installed on the outside of the thread dressing spindle corresponding to the position between the middle sealing bearing assembly and the rear sealing bearing assembly through a locking nut.

[0012] The above-mentioned thread dressing spindle can be provided with an air-sealed through-hole running through the front and back, and an air-sealed ring platform is provided on the outside of the thread dressing spindle corresponding to the position between the middle sealed bearing assembly and the rear sealed bearing assembly, and a thread dressing grinding wheel is installed on the outside of the air-sealed ring platform; the front sealed bearing assembly includes a front bearing seat, a front bearing group and an air inlet joint, and a front bearing seat installed on the outside of the front end of the thread dressing spindle is provided, and a front bearing group is installed between the front bearing seat and the thread dressing spindle, and an air inlet joint is fixedly installed on the front side of the front bearing seat corresponding to the position of the air-sealed through-hole; the middle sealed bearing assembly includes a middle bearing seat, a middle bearing group, a limit ring and a front air-sealed ring, and a limit ring is fixedly installed on the outside of the thread dressing spindle corresponding to the right position of the motor stator, and a middle bearing seat is fixedly installed on the inside of the rear end of the dressing shaft mounting hole, and a rear side and an air inlet joint are fixedly installed on the inside of the rear end of the middle bearing seat. A front air-tight ring for forming a labyrinth air curtain seal is formed on the front side of the sealing ring platform, and a middle bearing group is provided on the outside of the thread dressing spindle corresponding to the position between the limit ring and the front air-tight ring; the rear sealing bearing assembly includes a rear bearing seat, a rear end cover, a rear bearing group and a rear air-tight ring, and a rear bearing seat installed on the outer side of the rear end of the thread dressing spindle is installed on the upper side of the rear end of the motor housing, and a rear air-tight ring that forms a labyrinth air curtain seal between the front side and the rear side of the air-tight ring platform is fixedly installed on the inner side of the front end of the rear bearing seat, and a rear end cover is fixedly installed on the inner side of the rear end of the rear bearing seat, and a rear bearing group is provided on the outer side of the thread dressing spindle corresponding to the position between the rear end cover and the rear air-tight ring; at least one front air curtain outlet that can be communicated with the air-tight through hole is provided on the outer side of the thread dressing spindle corresponding to the position of the front air-tight ring, and at least one rear air curtain outlet that can be communicated with the air-tight through hole is provided on the outer side of the thread dressing spindle corresponding to the position of the rear air-tight ring.

[0013] The outer side of the above-mentioned motor stator may be provided with a water-cooling spiral groove, the lower front part of the motor housing is provided with a circulation inlet that can be connected to the front part of the dressing shaft mounting hole, the upper front part of the motor housing is provided with a circulation outlet that can be connected to the rear part of the dressing shaft mounting hole, the front side of the front sealed bearing assembly is provided with a cooling inlet that can be connected to the circulation inlet, and the front side of the front sealed bearing assembly is provided with a cooling outlet that can be connected to the circulation outlet.

[0014] The above-mentioned first driving device may include a first linear motor, a forward and backward slide rail and a forward and backward slider. Two forward and backward slide rails are fixedly installed on the left and right sides of the upper side of the lower support plate. A forward and backward slider located on the outer side of the upper part of the forward and backward slide rails is fixedly installed on the lower side of the middle support plate corresponding to the position of the forward and backward slide rails. A first linear motor is provided between the lower support plate and the middle support plate, and the control modules are respectively connected to the first linear motors.

[0015] The above-mentioned second driving device may include a second linear motor, left and right slide rails and left and right sliders. Two left and right slide rails are fixedly installed on the upper side of the middle support plate at intervals in the front and rear. Left and right sliders located on the outer side of the upper part of the left and right slide rails are fixedly installed on the lower side of the upper support plate corresponding to the positions of the left and right slide rails. A second linear motor is provided between the upper support plate and the middle support plate, and the control modules are respectively connected to the second linear motors.

[0016] The present invention has a reasonable and compact structure and is easy to use. By setting a first drive device and a second drive device, the position of the thread grinder can be adjusted to meet the needs of different thread processing; by setting an AE sensor on the main shaft of the thread grinder, the state of the thread processing grinding wheel can be monitored in real time; by setting a thread dressing grinder, the thread processing grinding wheel can be dressed online after it is worn, and it has the characteristics of stability, reliability and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attachment Figure 1 Schematic diagrams of the main structures of embodiments 1 to 6 of the present invention.

[0018] Attachment Figure 2 For attachment Figure 1 Schematic diagram of the three-dimensional structure.

[0019] Attachment Figure 3 For attachment Figure 1 Schematic diagram of the right side cross-sectional structure of the medium thread dressing grinder.

[0020] The codes in the accompanying drawings are: 1 for thread grinder, 2 for thread processing grinding wheel, 3 for lower support plate, 4 for middle support plate, 5 for upper support plate, 6 for frame, 7 for thread dressing spindle, 8 for motor housing, 9 for thread dressing grinding wheel, 10 for motor rotor, 11 for motor stator, 12 for limit nut, 13 for air sealing through hole, 14 for air sealing ring table, 15 for front bearing seat, 16 for front bearing group, 17 for air inlet joint, 18 for middle bearing seat, 19 for middle bearing group, 20 for Limiting ring, 21 is the front airtight ring, 22 is the rear bearing seat, 23 is the rear end cover, 24 is the rear bearing group, 25 is the rear airtight ring, 26 is the front air curtain outlet, 27 is the rear air curtain outlet, 28 is the water-cooling spiral groove, 29 is the circulation inlet, 30 is the circulation outlet, 31 is the cooling inlet, 32 is the cooling outlet, 33 is the first linear motor, 34 is the front and rear slide rails, 35 is the front and rear slider, 36 is the second linear motor, 37 is the left and right slide rails, and 38 is the left and right sliders. DETAILED DESCRIPTION

[0021] The present invention is not limited to the following embodiments, and specific implementation methods can be determined based on the technical solutions of the present invention and actual conditions.

[0022] In the present invention, for the convenience of description, the relative position relationship of each component is described based on the Figure 1 For example, the positional relationships of front, back, up, down, left, and right are determined according to the layout directions of the drawings in the specification.

[0023] The present invention will be further described below in conjunction with the embodiments and accompanying drawings:

[0024] Example 1: As shown in the attached Figure 1 、 2As shown in Figure 3, the adjustable multi-thread thread processing and finishing workbench includes a thread grinding workbench and a finishing workbench arranged at intervals on the left and right. The thread grinding workbench includes a thread grinder 1, a first driving device, a second driving device, and a lower support plate 3, a middle support plate 4 and an upper support plate 5 arranged at intervals from bottom to top. A first driving device that can move the middle support plate 4 back and forth relative to the lower support plate 3 is provided between the lower support plate 3 and the middle support plate 4. A second driving device that can move the upper support plate 5 left and right relative to the middle support plate 4 is provided between the middle support plate 4 and the upper support plate 5. A thread grinder 1 is installed on the upper side of the upper support plate 5, and a thread grinder 1 is provided inside the thread grinder 1. There is a thread grinder 1 spindle arranged in a forward and backward direction, an AE sensor is provided on the thread grinder 1 spindle, and a thread processing grinding wheel 2 is fixedly installed on the outer side of the rear end of the thread grinder 1 spindle; the dressing workbench includes a frame 6 and a thread dressing grinder, a thread dressing grinder is provided on the upper side of the frame 6 corresponding to the position of the thread processing grinding wheel 2, a thread dressing spindle 7 arranged in a forward and backward direction is provided in the thread dressing grinder, and a thread dressing grinding wheel 9 is fixedly installed on the rear end of the thread dressing spindle 7; the AE sensor is connected to the control module, and the control module is respectively connected to the first drive device, the second drive device, the thread grinder 1 and the thread dressing grinder. During use, by setting the first drive device and the second drive device, the position of the thread grinder 1 is adjusted, and the control module is cooperated to achieve precise control of the position changes of the thread grinder 1 in the front and back directions and the left and right directions, so that the thread grinder 1 can not only be accurately moved to the processing position to meet different thread processing, but also can be accurately moved to the dressing position to dress the thread processing grinding wheel 2; by setting the AE sensor on the main shaft of the thread grinder 1, different vibration setting intervals can be set in the control program, such as 20 to 30 decibels, 30 to 50 decibels, 50 to 80 decibels and other different intervals, and the control module is used to distinguish different vibration setting intervals, and automatic tool setting, grinding wheel dressing detection, workpiece grinding position detection and machine tool collision detection and prevention are realized during the processing; by setting the thread dressing grinder, the thread processing grinding wheel 2 can be dressed online after it is worn. The specific dressing plan can use a forming roller to grind and perform forming dressing, and the trimmed shape is consistent with the workpiece. The control module can also be used to perform trajectory dressing by two-week linear interpolation motion on the linkage of the thread dressing grinder and the first drive device and the second drive device. According to the requirements, the present invention can be applied to the thread groove processing of tools such as taps, milling cutters, drill bits and woodworking tools.

[0025] The above-mentioned adjustable multi-thread processing and finishing workbench can be further optimized and / or improved according to actual needs:

[0026] Example 2: As shown in the attached Figure 1 、 2As shown in Figure 3, the thread dressing grinder includes a motor housing 8, a thread dressing spindle 7, a thread dressing grinding wheel 9, a motor stator 11, a motor stator 11, a limit nut 12, a front sealing bearing assembly, a middle sealing bearing assembly and a rear sealing bearing assembly. A dressing shaft mounting hole that passes through the motor housing 8 is provided in the motor housing 8. The thread dressing spindle 7 is provided in the dressing shaft mounting hole. The front end of the thread dressing spindle 7 is located in front of the motor housing 8. The front outer side of the front end of the thread dressing spindle 7 is provided with a front sealing bearing assembly installed on the front side of the motor housing 8. The thread dressing spindle 7 A middle sealed bearing assembly is provided on the outer side of the middle part, and the front part is installed on the inner side of the rear end of the dressing shaft mounting hole. A rear sealed bearing assembly is provided on the outer side of the rear end of the thread dressing spindle 7, and is installed on the upper side of the rear part of the motor housing 8. A motor rotor 10 is installed on the outer side of the thread dressing spindle 7 corresponding to the position between the front sealed bearing assembly and the middle sealed bearing assembly. A motor stator 11 is provided on the outer side of the motor rotor 10. A thread dressing grinding wheel 9 is installed on the outer side of the thread dressing spindle 7 corresponding to the position between the middle sealed bearing assembly and the rear sealed bearing assembly through a locking nut. During use, three sets of bearing assemblies are set for the thread dressing spindle 7 to provide it with stable support while ensuring its stability during operation; by setting a synchronous motor (motor rotor 10 and motor stator 11) and building an encoder into the thread dressing spindle 7, the speed of the two is controlled by the frequency converter to achieve precise speed control and rapid conversion between high and low speeds, thereby completing the switching between rough dressing and fine dressing; by installing the thread dressing spindle 7 on the rotating axis and installing a sliding bearing on the rotating axis, rigid rotation can be achieved, and the rotation accuracy is adjusted by two fine-tuning micrometers to achieve precise angle adjustment, solving the compensation problem after unilateral wear of the dressing roller.

[0027] Example 3: As shown in the attached Figure 1 、 2As shown in Figure 3, the thread dressing spindle 7 is provided with an airtight through hole 13 that passes through the front and back, and an airtight ring stage 14 is provided on the outside of the thread dressing spindle 7 corresponding to the position between the middle sealing bearing assembly and the rear sealing bearing assembly. A thread dressing grinding wheel 9 is installed on the outside of the airtight ring stage 14; the front sealing bearing assembly includes a front bearing seat 15, a front bearing group 16 and an air inlet joint 17, and the front outer side of the thread dressing spindle 7 is provided with a front bearing seat 15 installed on the front side of the motor housing 8. The front bearing seat 15 and the thread dressing A front bearing group 16 is installed between the main shafts 7, and an air inlet joint 17 is fixedly installed on the front side of the front bearing seat 15 corresponding to the position of the air-sealed through hole 13; the middle sealed bearing assembly includes a middle bearing seat 18, a middle bearing group 19, a limit ring 20 and a front air-sealed ring 21. The limit ring 20 is fixedly installed on the outer side of the threaded trimming main shaft 7 corresponding to the right position of the motor stator 11, and the middle bearing seat 18 is fixedly installed on the inner side of the rear end of the trimming shaft mounting hole. The rear side and the air-sealed ring are fixedly installed on the inner side of the rear end of the middle bearing seat 18. The front airtight ring 21 of the platform 14 is formed on the front side of the labyrinth air curtain seal, and the outer side of the thread dressing main shaft 7 between the corresponding limit ring 20 and the front airtight ring 21 is provided with a middle bearing group 19; the rear sealed bearing assembly includes a rear bearing seat 22, a rear end cover 23, a rear bearing group 24 and a rear airtight ring 25. The outer side of the rear end of the thread dressing main shaft 7 is provided with a rear bearing seat 22 installed on the upper side of the rear part of the motor housing 8. The inner side of the front end of the rear bearing seat 22 is fixedly installed with the front side and the airtight ring on the rear side of the platform 14 to form a labyrinth air curtain The rear bearing seat 22 is provided with a sealed rear air-tight ring 25, a rear end cap 23 is fixedly mounted on the inner side of the rear end of the rear bearing seat 22, and a rear bearing assembly 24 is provided on the outer side of the thread dressing spindle 7 at the position between the rear end cap 23 and the rear air-tight ring 25. At least one front air curtain outlet 26, which is communicable with the air-tight through-hole 13, is provided on the outer side of the thread dressing spindle 7 at the position corresponding to the front air-tight ring 21, and at least one rear air curtain outlet 27, which is communicable with the air-tight through-hole 13, is provided on the outer side of the thread dressing spindle 7 at the position corresponding to the rear air-tight ring 25. During use, gas passes through the gas inlet connector 17 and the air-tight through-hole 13 in sequence and is discharged from the front air curtain outlet 26 and the rear air curtain outlet 27. When gas is discharged from the front air curtain outlet 26 and the rear air curtain outlet 27, it can effectively prevent debris generated when the thread dressing grinding wheel 9 is dressing the thread machining grinding wheel 2 from entering the middle bearing seat 18 and the rear bearing seat 22 through the gap between the components, thereby damaging the middle bearing assembly 19 and the rear bearing assembly 24.

[0028] Example 4: As shown in the attached Figure 1 、 2As shown in Figures 3 and 4, a water-cooling spiral groove 28 is provided on the outside of the motor stator 11. A circulation inlet 29 is provided at the lower front portion of the motor housing 8, which is connected to the front portion of the trimming shaft mounting hole. A circulation outlet 30 is provided at the upper front portion of the motor housing 8, which is connected to the rear portion of the trimming shaft mounting hole. A cooling inlet 31 is provided on the front side of the front sealed bearing assembly, which is connected to the circulation inlet 29. A cooling outlet 32 ​​is provided on the front side of the front sealed bearing assembly, which is connected to the circulation outlet 30. During use, the coolant passes through the cooling inlet 31, the circulation inlet 29, the water-cooling spiral groove 28, the circulation outlet 30, and the cooling outlet 32 ​​in sequence, thereby cooling the motor stator 11 and the motor rotor 10 inside the electrode housing.

[0029] Example 5: As shown in the attached Figure 1 、 2 As shown in Figure 3, the first driving device includes a first linear motor 33, a front-to-rear slide rail 34 and a front-to-rear slider 35. Two front-to-rear slide rails 34 are fixedly installed on the left and right sides of the upper side of the lower support plate 3 at intervals. A front-to-rear slider 35 located on the outer side of the upper part of the front-to-rear slide rail 34 is fixedly installed on the lower side of the middle support plate 4 corresponding to the position of the front-to-rear slide rail 34. A first linear motor 33 is provided between the lower support plate 3 and the middle support plate 4, and the control modules are respectively connected to the first linear motor 33. During use, by setting a first linear motor 33, the middle support plate 4 slides along the front-to-back slide rail 34 set on the upper side of the lower support plate 3 through the front-to-back slider 35, thereby adjusting the front-to-back position of the thread grinder 1; by setting a control module, the front-to-back position change of the thread grinder 1 can be accurately controlled, so that the thread grinder 1 can not only be accurately moved to the processing position, but also can be accurately moved to the finishing position; the first linear motor 33 is used to achieve contactless operation between the lower support plate 3 and the middle support plate 4, long-term movement without wear, low friction resistance and high movement accuracy, and the type of thread to be ground can be arbitrarily adjusted, with the advantages of high processing efficiency, long machine tool life and no wear. In addition, the original cross slide of the thread grinder 1 uses a motor and a screw rod, which has the problems of low grinding efficiency, easy wear of the screw rod and difficulty in replacement. The cross slide of the thread grinder 1 designed based on the first linear motor 33 and the second linear motor 36 effectively solves the problems existing in the motor screw type cross slide.

[0030] Example 6: As shown in the attached Figure 1 、 2As shown in Figure 3, the second driving device includes a second linear motor 36, left and right slide rails 37 and left and right sliders 38. Two left and right slide rails 37 are fixedly installed at a front and rear interval on the upper side of the middle support plate 4. Left and right sliders 38 located on the outer upper part of the left and right slide rails 37 are fixedly installed on the lower side of the upper support plate 5 corresponding to the position of the left and right slide rails 37. A second linear motor 36 is provided between the upper support plate 5 and the middle support plate 4, and the control modules are respectively connected to the second linear motors 36. During use, by setting a second linear motor 36, the upper support plate 5 slides along the left and right slide rails 37 set on the upper side of the middle support plate 4 through the left and right sliders 38, thereby adjusting the left and right position of the thread grinder 1; by setting a control module, precise control of the left and right position changes of the thread grinder 1 is achieved, so that not only the thread grinder 1 can be accurately moved to the processing position, but also the thread grinder 1 can be accurately moved to the finishing position; the second linear motor 36 is used to achieve contactless operation between the upper support plate 5 and the middle support plate 4, long-term movement without wear, low friction resistance and high movement accuracy, and the type of thread to be ground can be adjusted arbitrarily, with the advantages of high processing efficiency, long machine tool life and no wear. In addition, the original cross slide of the thread grinder 1 uses a motor and a screw rod, which has the problems of low grinding efficiency, easy wear of the screw rod and difficulty in replacement. The cross slide of the thread grinder 1 designed based on the first linear motor 33 and the second linear motor 36 effectively solves the problems existing in the motor screw type cross slide.

[0031] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. An adjustable multi-thread processing and finishing workbench, characterized in that The present invention relates to a thread grinding and finishing workbench, wherein the thread grinding and finishing workbench comprises a thread grinder, a first driving device, a second driving device, and a lower support plate, a middle support plate and an upper support plate arranged at intervals from bottom to top. A first driving device that can make the middle support plate move forward and backward relative to the lower support plate is provided between the lower support plate and the middle support plate, and a second driving device that can make the upper support plate move left and right relative to the middle support plate is provided between the middle support plate and the upper support plate. A thread grinder is installed on the upper side of the upper support plate, a thread grinder spindle arranged in a front-to-back direction is provided in the thread grinder, an AE sensor is provided on the thread grinder spindle, and a thread processing grinding wheel is fixedly installed on the outer side of the rear end of the thread grinder spindle; the finishing workbench comprises a frame and a thread dressing grinder, a thread dressing grinder is provided on the upper side of the frame corresponding to the position of the thread processing grinding wheel, a thread dressing grinder is provided on the thread dressing grinder, a thread dressing spindle arranged in a front-to-back direction is provided in the thread dressing grinder, and a thread dressing grinding wheel is fixedly installed on the rear end of the thread dressing spindle; the AE sensor is connected to the control module, and the control module is respectively connected to the first driving device, the second driving device, the thread grinder and the thread dressing grinder; The thread dressing grinder includes a motor housing, a thread dressing spindle, a thread dressing grinding wheel, a motor stator, a limiting nut, a front sealing bearing assembly, a middle sealing bearing assembly and a rear sealing bearing assembly. A dressing shaft mounting hole is provided in the motor housing, and a thread dressing spindle is provided in the dressing shaft mounting hole. The front end of the thread dressing spindle is located in the front of the motor housing, and a front sealing bearing assembly installed on the front side of the motor housing is provided on the outer side of the front end of the thread dressing spindle. A middle sealing bearing assembly is provided on the outer side of the middle part of the thread dressing spindle, and the front end is installed on the inner side of the rear end of the dressing shaft mounting hole. A rear sealing bearing assembly is provided on the outer side of the rear end of the thread dressing spindle. The motor rotor is installed on the outer side of the thread dressing spindle corresponding to the position between the front sealing bearing assembly and the middle sealing bearing assembly, and a motor stator is provided on the outer side of the motor rotor. A thread dressing grinding wheel is installed on the outer side of the thread dressing spindle corresponding to the position between the middle sealing bearing assembly and the rear sealing bearing assembly through a locking nut. The thread dressing spindle is provided with an air-sealed through-hole running through the front and back, an air-sealed ring platform is provided on the outside of the thread dressing spindle corresponding to the position between the middle sealed bearing assembly and the rear sealed bearing assembly, and a thread dressing grinding wheel is installed on the outside of the air-sealed ring platform; the front sealed bearing assembly includes a front bearing seat, a front bearing group and an air inlet joint, and a front bearing seat installed on the outside of the front end of the thread dressing spindle is provided, which is installed on the front side of the motor housing, and a front bearing group is installed between the front bearing seat and the thread dressing spindle, and an air inlet joint is fixedly installed on the front side of the front bearing seat corresponding to the position of the air-sealed through-hole; the middle sealed bearing assembly includes a middle bearing seat, a middle bearing group, a limit ring and a front air-sealed ring, and a limit ring is fixedly installed on the outside of the thread dressing spindle corresponding to the right position of the motor stator, a middle bearing seat is fixedly installed on the inside of the rear end of the dressing shaft mounting hole, and a rear side and an air-sealed joint are fixedly installed on the inside of the rear end of the middle bearing seat A front air-tight ring for forming a labyrinth air curtain seal is formed on the front side of the ring platform, and a middle bearing group is provided on the outside of the thread dressing main shaft corresponding to the position between the limit ring and the front air-tight ring; the rear sealed bearing assembly includes a rear bearing seat, a rear end cover, a rear bearing group and a rear air-tight ring, and a rear bearing seat installed on the upper side of the rear end of the motor housing is provided on the outside of the rear end of the thread dressing main shaft, and a rear air-tight ring that forms a labyrinth air curtain seal between the front side and the rear side of the air-tight ring platform is fixedly installed on the inner side of the front end of the rear bearing seat, and a rear end cover is fixedly installed on the inner side of the rear end of the rear bearing seat, and a rear bearing group is provided on the outside of the thread dressing main shaft corresponding to the position between the rear end cover and the rear air-tight ring; at least one front air curtain outlet that can be communicated with the air-tight through hole is provided on the outside of the thread dressing main shaft corresponding to the position of the front air-tight ring, and at least one rear air curtain outlet that can be communicated with the air-tight through hole is provided on the outside of the thread dressing main shaft corresponding to the position of the rear air-tight ring.

2. The adjustable multi-thread processing and finishing workbench according to claim 1 is characterized in that A water-cooling spiral groove is provided on the outside of the motor stator, a circulation inlet is provided on the lower front side of the motor housing and can be communicated with the front part of the trimming shaft mounting hole, a circulation outlet is provided on the upper front side of the motor housing and can be communicated with the rear part of the trimming shaft mounting hole, a cooling inlet is provided on the front side of the front sealed bearing assembly and can be communicated with the circulation inlet, and a cooling outlet is provided on the front side of the front sealed bearing assembly and can be communicated with the circulation outlet.

3. The adjustable multi-thread processing and finishing workbench according to claim 1 or 2, characterized in that The first driving device includes a first linear motor, a forward and backward slide rail and a forward and backward slider. Two forward and backward slide rails are fixedly installed at intervals on the left and right sides of the upper side of the lower support plate. A forward and backward slider located on the outer side of the upper part of the forward and backward slide rails is fixedly installed on the lower side of the middle support plate corresponding to the position of the forward and backward slide rails. A first linear motor is provided between the lower support plate and the middle support plate, and the control modules are respectively connected to the first linear motors.

4. The adjustable multi-thread processing and finishing workbench according to claim 1 or 2, characterized in that The second driving device includes a second linear motor, left and right slide rails and left and right sliders. Two left and right slide rails are fixedly installed on the upper side of the middle support plate at an interval of front and rear. Left and right sliders located on the outer side of the upper part of the left and right slide rails are fixedly installed on the lower side of the upper support plate corresponding to the positions of the left and right slide rails. A second linear motor is provided between the upper support plate and the middle support plate, and the control modules are respectively connected to the second linear motors.

5. The adjustable multi-thread processing and finishing workbench according to claim 3 is characterized in that The second driving device includes a second linear motor, left and right slide rails and left and right sliders. Two left and right slide rails are fixedly installed on the upper side of the middle support plate at an interval of front and rear. Left and right sliders located on the outer side of the upper part of the left and right slide rails are fixedly installed on the lower side of the upper support plate corresponding to the positions of the left and right slide rails. A second linear motor is provided between the upper support plate and the middle support plate, and the control modules are respectively connected to the second linear motors.

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