Cutting grinding wheel device with compensation function and grinding machine

Abstract

The invention provides a cutting grinding wheel device with a compensation function and a grinding machine, the cutting grinding wheel device comprises a device body, a grinding wheel assembly and a compensation assembly, the device body is slidably arranged on a track of the grinding machine, the grinding wheel assembly comprises a grinding wheel body, the compensation assembly comprises a mounting plate, a rotating arm and a sensor, and the mounting plate is arranged on the grinding wheel assembly; the first end of the rotating arm is arranged on the mounting plate in a position-adjustable mode, the second end of the rotating arm extends out of the mounting plate, and the sensor is arranged at the second end of the rotating arm and arranged on the upper portion of the grinding wheel body in a position-adjustable mode through the rotating arm. The cutting grinding wheel device with the compensation function is simple in overall structure, convenient to assemble and easy to operate, the outer contour state of the grinding wheel body can be detected in real time during machining by adjusting the position of the sensor before a to-be-machined part is machined, and therefore it is guaranteed that the pitch diameter of the to-be-machined part is consistent in size, high-precision machining is kept, and the machining efficiency is improved. And the processing quality of products is improved.

Description

Technical Field

[0001] The present application relates to the technical field of processing thin-walled deep-hole external threaded screws, and in particular to a cutting grinding wheel device and a grinding machine with a compensation function. Background Art

[0002] The accuracy of a screw's pitch diameter determines whether the screw meshes smoothly and is the most important factor in determining screw accuracy. Screw pitch diameter measurement is typically performed offline, meaning the screw is removed from the workbench for inspection after machining. This can lead to machining failures if the offline inspection results are unsatisfactory and the positioning reference is altered during subsequent machining.

[0003] For general thin-walled screw processing, the current method is to grind once, measure, and then perform grinding wheel feed compensation. This results in low thread processing efficiency and inconsistent sizes of the mid-diameter of each thread segment, which makes the subsequent compensation process complicated. Some other in-situ detection methods can only be performed after grinding. For thin-walled deep-hole external threaded screws with large strokes (i.e., longer length and diameter and smaller pitch, for example, a screw diameter of 230mm, a length of 2m, a minimum pitch of only 2mm, and 27 thread heads), the processing difficulty and precision are relatively high, and general processing methods are difficult to achieve the required accuracy.

[0004] Therefore, it is necessary to design a cutting wheel device with a compensation function to solve the above problems. Summary of the Invention

[0005] In view of this, in order to overcome the defects of the prior art, the present invention provides a cutting grinding wheel device and a grinding machine with a compensation function, which effectively solves the problem that the existing processing device cannot process thin-walled deep-hole external threaded screws with a large stroke.

[0006] According to a first aspect of the present invention, a cutting grinding wheel device with a compensation function is provided, which is used for a grinding machine, wherein the cutting grinding wheel device includes a device body, a grinding wheel assembly and a compensation assembly, the grinding wheel assembly and the compensation assembly are both arranged on the device body, the device body is slidably arranged on the track of the grinding machine, the grinding wheel assembly includes a grinding wheel body, the compensation assembly includes a mounting plate, a rotating arm and a sensor, the mounting plate is arranged on the grinding wheel assembly, the first end of the rotating arm is adjustable and arranged on the mounting plate, the second end of the rotating arm extends out of the mounting plate, the sensor is arranged on the second end of the rotating arm, and the sensor is adjustably arranged on the upper part of the grinding wheel body through the rotating arm so that the extension line of the emission port of the sensor body passes through the center of the grinding wheel body.

[0007] Preferably, the grinding machine is used to process a workpiece to be processed, the center of the workpiece to be processed is at the same height as the center of the grinding wheel body, the mounting plate is perpendicular to the grinding wheel body, and the sensor is parallel to the mounting plate so that the sensor is perpendicular to the grinding wheel body, so that the straight line formed by the point where the laser emitted by the sensor irradiates the grinding wheel body and the center of the grinding wheel body and the straight line formed by the center of the grinding wheel body and the center of the workpiece to be processed are perpendicular to each other; the grinding machine also includes a control system, the sensor detects the shape error of the grinding wheel body by emitting laser, and transmits the error value to the control system, and the control system drives the device body to move on the track of the grinding machine by controlling the motor, so that the grinding wheel body moves forward or backward a corresponding distance toward the direction of the workpiece to be processed.

[0008] Preferably, the rotating arm includes a telescopic portion and an extension portion, the telescopic portion is arranged on the mounting plate with adjustable length, the first end of the extension portion is arranged on the telescopic portion, and the sensor is arranged on the second end of the extension portion with variable position.

[0009] Preferably, the telescopic part includes a first telescopic block and a second telescopic block, the first end of the second telescopic block is passed through the interior of the first telescopic block, a sliding limit groove is provided inside the first telescopic block, and a sliding block is provided on the outer wall of the second telescopic block, and the first telescopic block and the second telescopic block are slidably docked with each other through the docking of the sliding block and the sliding limit groove.

[0010] Preferably, a locking slot is formed at the second end of the extension portion, the opening direction of the locking slot is parallel to the extension direction of the extension portion, and the sensor is variably positioned in the locking slot by a locking member.

[0011] Preferably, the cutting grinding wheel device further comprises a blowing device, the blowing device comprises a blowing head, and the blowing head is arranged on the upper part of the grinding wheel body.

[0012] Preferably, the device body includes a turntable and a mounting plate, the mounting plate is rotatably disposed on the turntable, and the grinding wheel assembly and the compensation assembly are both disposed on the mounting plate.

[0013] Preferably, the grinding wheel assembly also includes a grinding wheel electric spindle and a protective cover, the grinding wheel electric spindle is arranged on the side of the grinding wheel body and is connected to the grinding wheel body, and the mounting plate is arranged on the outer shell of the grinding wheel electric spindle; the protective cover includes a fixed cover body and a movable cover body, the fixed cover body is arranged on the device body, the movable cover body is pivotally connected to the fixed cover body, and the grinding wheel body is arranged between the movable cover body and the fixed cover body.

[0014] Preferably, the cutting grinding wheel device also includes a pad assembly, the pad assembly includes a pad body and a slide, the slide is arranged at the bottom of the pad body, the device body is arranged at the top of the pad body, the bottom of the slide is provided with a slider that is slidably connected to the track of the grinder, and the side of the slide is provided with a grating scale.

[0015] According to a second aspect of the present invention, there is provided a grinding machine, wherein the grinding machine comprises the cutting grinding wheel device with compensation function as described above.

[0016] According to the cutting grinding wheel device with compensation function of the present invention, through the cooperation of the device main body, the grinding wheel assembly and the compensation assembly, the real-time position compensation of the grinding wheel body can be achieved, which can ensure that the size of each section of the middle diameter of the thread of the workpiece to be processed is consistent. The sensor is arranged on the upper part of the grinding wheel body in an adjustable position through a rotating arm, so that the extension line of the emission port of the sensor passes through the center of the grinding wheel body, and then the laser emitted by the sensor can be aligned with the center of the grinding wheel body to ensure the accuracy of laser detection. The cutting grinding wheel device with compensation function has a simple overall structure, convenient assembly, and easy operation. Before processing the workpiece to be processed, the position of the sensor can be adjusted to achieve real-time detection of the outer contour state of the grinding wheel body during processing, thereby ensuring the size of the middle diameter of the workpiece to be processed is consistent, maintaining high-precision processing, and improving the processing quality of the product.

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic structural diagram of a cutting grinding wheel device with a compensation function according to an embodiment of the present invention is shown;

[0020] Figure 2 A schematic structural diagram showing another perspective of a cutting grinding wheel device with a compensation function according to an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of a compensation assembly and a grinding wheel assembly according to an embodiment of the present invention is shown;

[0022] Figure 4A schematic structural diagram of a turntable, a mounting plate, and a backing plate assembly according to an embodiment of the present invention is shown;

[0023] Figure 5 A schematic structural diagram of a rotating arm according to an embodiment of the present invention is shown;

[0024] Figure 6 A schematic structural diagram of an extension portion according to an embodiment of the present invention is shown;

[0025] Figure 7 A schematic structural diagram of a grinding machine according to an embodiment of the present invention is shown;

[0026] Figure 8 FIG. 2 shows a detection principle diagram according to an embodiment of the present invention.

[0027] Figure markings: 1-device body; 101-turntable; 102-mounting plate; 201-grinding wheel body; 202-grinding wheel electric spindle; 203-fixed cover; 204-movable cover; 301-mounting plate; 302-rotating arm; 303-sensor; 304-telescopic part; 305-extension part; 306-first telescopic block; 307-second telescopic block; 308-sliding limit groove; 309-sliding block; 310-locking slide; 311-base; 4-blowing head; 501-pad body; 502-slide; 503-grating scale; 6-grinder; 601-track; 7-workpiece to be processed. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0029] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0031] In the description of the embodiments of the present application, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0032] According to a first aspect of the present invention, a cutting wheel device with a compensation function is provided. Figures 1 to 7 As shown, the cutting wheel device with compensation function is used in a grinder 6, which can process the external thread of a workpiece 7. In addition, in the embodiment, the workpiece 7 is a component with a long stroke, thin wall, deep hole, dense pitch, and high processing precision requirements. Such a component can be used in special fields with high processing precision requirements.

[0033] The cutting wheel device with compensation function includes a device body 1, a grinding wheel assembly and a compensation assembly. In the following description, reference will be made to Figures 1 to 7 The detailed structures of the device body 1, the grinding wheel assembly and the compensation assembly of the cutting grinding wheel device with compensation function are specifically described.

[0034] like Figure 1 、 Figure 2 and Figure 7As shown, in the embodiment, the grinding wheel assembly and the compensation assembly are both arranged on the device body 1, and the device body 1 can be slidably set on the track 601 of the grinder 6. By adjusting the position of the device body 1, the distance between the grinding wheel assembly and the workpiece 7 to be processed is adjusted, thereby adjusting the opening depth of the external thread, etc.

[0035] The grinding wheel assembly includes a grinding wheel body 201, and the compensation assembly includes a mounting plate 301, a rotating arm 302, and a sensor 303. Since the grinding wheel body 201 will be worn during the process of machining the workpiece 7, if the processing method in the prior art is used, the feed compensation of the grinding wheel body 201 will be performed after a grinding process and measurement. However, if the workpiece 7 is of high hardness, the grinding wheel body 201 may be severely worn in the second half of a grinding process, which not only leads to low thread machining efficiency, but also makes it impossible to maintain the same size of the mid-diameter of each section of the thread, which brings a cumbersome processing process to the subsequent compensation process. Some other existing in-situ detection methods can only be performed after grinding.

[0036] Based on this, the cutting grinding wheel device with compensation function can use the compensation component to perform online dynamic compensation detection on the grinding wheel body 201, and cooperate with the control system of the grinding machine 6 to realize real-time position compensation of the grinding wheel assembly, so that the grinding wheel body 201 can always ensure that the size of each section of the thread diameter is consistent when grinding the workpiece 7. Specifically, the mounting plate 301 is set on the grinding wheel assembly, the first end of the rotating arm 302 is adjustable and arranged on the mounting plate 301, the second end of the rotating arm 302 extends from the mounting plate 301, and the sensor 303 is set on the second end of the rotating arm 302. The sensor 303 is adjustable and arranged on the upper part of the grinding wheel body 201 through the rotating arm 302, so that the extension line of the emission port of the sensor 303 passes through the center of the grinding wheel body 201. The sensor 303 can be, for example, a laser emitter that can emit laser light. The rotating arm 302 drives the sensor 303 to change position so that the sensor 303 can correspond to grinding wheels of different specifications. In order to ensure the detection quality, it is necessary to ensure that the laser emitted by the sensor 303 can accurately illuminate the center of the grinding wheel body 201.

[0037] like Figure 8 As shown, Figure 8The circle in the figure is a plan view of the grinding wheel body 201, where point O is the center of the circle, point B is the point where the laser emitted by the sensor 303 contacts the outer surface of the grinding wheel body 201, and point A is the point where the grinding wheel body 201 contacts the workpiece 7. It should be noted that when the workpiece 7 is mounted on the grinding machine 6, it is clamped on the clamping device through the headstock and tailstock of the grinding machine 6. After that, the operator can use a meter or other detection method to make the center of the headstock, tailstock and grinding wheel body 201 equal in height. Therefore, the workpiece 7 clamped by the headstock and tailstock and the grinding wheel body 201 also have the same center height, that is, Figure 8 Point A is parallel to point O.

[0038] The laser emitted by the sensor 303 can be used to detect the state of the outer contour of the grinding wheel body 201 in real time, and then adjust the position of the device body 1 on the track 601 of the grinder 6, so that the grinding wheel assembly moves forward or backward a certain distance toward the workpiece 7 to be processed for compensation.

[0039] The cutting wheel device with compensation function can realize real-time position compensation of the grinding wheel body 201 through the cooperation of the device body 1, the grinding wheel assembly and the compensation assembly, and can ensure that the size of each section of the middle diameter of the thread of the workpiece 7 to be processed is consistent. The sensor 303 is arranged on the upper part of the grinding wheel body 201 in an adjustable position through the rotating arm 302, so that the extension line of the emission port of the sensor 303 passes through the center of the grinding wheel body 201, and then the laser emitted by the sensor 303 can be aligned with the center of the grinding wheel body 201 to ensure the accuracy of laser detection. The cutting wheel device with compensation function has a simple overall structure, convenient assembly, and easy operation. Before processing the workpiece 7 to be processed, the position of the sensor 303 can be adjusted to realize real-time outer contour state detection of the grinding wheel body 201 during processing, thereby ensuring the size of the middle diameter of the workpiece 7 to be processed is consistent, maintaining high-precision processing, and improving the processing quality of the product.

[0040] Preferably, if Figure 3 、 Figure 7 and Figure 8 As shown, in the embodiment, the grinding machine 6 is used to process the workpiece 7 to be processed. The center of the workpiece 7 to be processed is at the same height as the center of the grinding wheel body 201. The method of making the centers of the two equal can be, for example, by the meter detection mentioned above. Other adjustment methods are also possible, as long as the center of the workpiece 7 to be processed is at the same height as the center of the grinding wheel body 201. The mounting plate 301 is perpendicular to the grinding wheel body 201, and the sensor 303 is parallel to the mounting plate 301 so that the sensor 303 is perpendicular to the grinding wheel body 201, so that the straight line formed by the point where the laser emitted by the sensor 303 hits the grinding wheel body 201 and the center of the grinding wheel body 201 is perpendicular to the straight line formed by the center of the grinding wheel body 201 and the center of the workpiece 7 to be processed. That is, Figure 8The OA line in the figure is perpendicular to OB, so the compensation distance that the device body 1 needs to move can be accurately calculated through the OA and OB that are perpendicular to each other.

[0041] Furthermore, the grinding machine 6 also includes a control system, which may include a control cabinet and a display. The sensor 303 can be electrically connected to the control cabinet and feed data back to the control cabinet. The sensor 303 detects the shape error of the grinding wheel body 201 by emitting a laser and transmits the error value to the control cabinet. The control cabinet can calculate and transmit the position that needs to be supplemented to the motor. The control cabinet controls the motor (not shown), which can drive the device body 1 to move on the track 601 of the grinding machine 6 so that the grinding wheel body 201 moves forward or backward a certain distance toward the direction of the workpiece 7 to be processed.

[0042] Specifically, the calculation process is as follows: assuming the rotational speed of the grinding wheel body 201 is n, then the difference between the error in the grinding wheel body 201's profile detected by laser and the time it enters detection is 1 / 4n. The laser propagation time can be calculated as t = 2d / v. Here, d is the distance between the grinding wheel body 201 and the sensor 303, and v is the speed. After the sensor 303 detects the profile error of the grinding wheel body 201 by emitting laser light, the error value is transmitted to the control system of the grinding machine 6. This control system then controls the linear motor, which in turn controls the grinding wheel body 201 to advance or retreat a certain distance toward the workpiece 7 based on the error value after a time of 1 / 4n - 2d / v to achieve compensation.

[0043] Preferably, if Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, in the embodiment, the rotating arm 302 includes a telescopic portion 304 and an extension portion 305. The telescopic portion 304 is mounted on the mounting plate 301 in an adjustable length. The first end of the extension portion 305 is mounted on the telescopic portion 304. The sensor 303 is mounted on the second end of the extension portion 305 in an adjustable position. The telescopic portion 304 allows the extension portion 305 to change its horizontal position, while the second end of the extension portion 305 allows the relative distance between the sensor 303 and the grinding wheel body 201 to be adjusted. By adjusting the positions of these two locations, the laser emitted by the sensor 303 is ensured to be aligned with the center of the grinding wheel body 201.

[0044] Preferably, if Figure 3As shown, in the embodiment, the telescopic part 304 is connected to the mounting plate 301 through the base 311, and the telescopic part 304 and the base 311 are rotatably connected. The rotatable connection method can be achieved by providing an annular groove on the inner wall of the base 311 and an annular clamp on the outer wall of the telescopic part 304. The telescopic part 304 and the base 311 are pressed together so that the annular clamp is clamped inside the annular groove. In this way, when the cutting grinding wheel device with compensation function is working, the sensor 303 can be extended by rotating the telescopic part 304. When the grinding wheel body 201 needs to be trimmed, the telescopic part 304 and the sensor 303 can be retracted by rotating the telescopic part 304 to avoid interfering with the trimming of the grinding wheel body 201.

[0045] Preferably, if Figure 3 and Figure 5 As shown, in this embodiment, the telescopic portion 304 includes a first telescopic block 306 and a second telescopic block 307. The first end of the second telescopic block 307 is disposed within the interior of the first telescopic block 306. A sliding stopper groove 308 is defined within the interior of the first telescopic block 306. A sliding block 309 is disposed on the outer wall of the second telescopic block 307. The sliding block 309 engages with the sliding stopper groove 308 to allow the first and second telescopic blocks 306 and 307 to slide and engage with each other. The telescopic portion 304 comprises two parts, wherein the first telescopic block 306 is rotatably connected to the base 311. The end of the second telescopic block 307 is disposed through the first telescopic block 306 to achieve sliding engagement. The extension portion 305 is fixedly disposed at the end of the second telescopic block 307 facing away from the first telescopic block 306. The fixed connection method can be, for example, welding or bolting.

[0046] Preferably, if Figure 6 As shown, in the embodiment, a locking slot 310 is defined at the second end of the extension portion 305. The direction of the locking slot 310 is parallel to the extension direction of the extension portion 305. The extension direction herein can be understood as follows: the extension portion 305 can be formed into a rectangular plate-like structure, extending from the position of the base 311 toward the position of the grinding wheel body 201. The sensor 303 is repositionably disposed in the locking slot 310 by a locking member. The locking member can be, for example, a locking bolt. The locking bolt is disposed on the end surface of the sensor 303 facing the extension portion 305. The locking bolt passes through the locking slot 310 and is connected to a locking nut. To change the position of the sensor 303 relative to the extension portion 305, the locking nut is loosened, the sensor 303 is slid to a desired position, and then the locking nut and locking bolt are tightened so that the two clamp the extension portion 305.

[0047] Preferably, if Figures 1 to 3As shown, in an embodiment, the cutting grinding wheel device may further include an air blowing device, which may include an air blowing head 4, which is disposed above the grinding wheel body 201. The air blowing head 4 is aligned with the grinding wheel body 201, and the air blown by the air blowing head 4 can blow away the cutting fluid in the portion of the grinding wheel body 201 where the laser is irradiating, thereby preventing the sensor 303 from being affected by the cutting fluid. The air blowing head 4 can be connected to an external air source and air duct.

[0048] Preferably, if Figure 4 As shown, in the embodiment, the device body 1 may include a turntable 101 and a mounting plate 102. The mounting plate 102 is rotatably mounted on the turntable 101, and the grinding wheel assembly and the compensation assembly are both mounted on the mounting plate 102. A rotating shaft is provided in the middle of the turntable 101, and the mounting plate 102 is connected to the rotating shaft by bolts. The rotation of the rotating shaft can drive the mounting plate 102 to rotate, thereby driving the grinding wheel assembly mounted on the mounting plate 102 to rotate.

[0049] Preferably, if Figures 1 to 3 As shown, in an embodiment, the grinding wheel assembly may further include a grinding wheel electric spindle 202 and a protective cover. The grinding wheel electric spindle 202 is arranged on the side of the grinding wheel body 201 and is connected to the grinding wheel body 201. The mounting plate 301 is arranged on the outer shell of the grinding wheel electric spindle 202. The outer shell of the grinding wheel electric spindle 202 determines that the mounting plate 301 is arranged vertically to the grinding wheel body 201.

[0050] Preferably, if Figure 1 and Figure 2 As shown, in an embodiment, the protective cover may include a fixed cover body 203 and a movable cover body 204. The fixed cover body 203 is disposed on the device body 1, the movable cover body 204 is pivotally connected to the fixed cover body 203, and the grinding wheel body 201 is disposed between the movable cover body 204 and the fixed cover body 203. A pivot shaft is provided at the connection between the movable cover body 204 and the fixed cover body 203, and the two are pivotally connected via the pivot shaft. The protective cover can effectively protect the grinding wheel body 201. When the grinding wheel body 201 needs to be replaced, the fixed cover body 203 and the movable cover body 204 are unlocked (to ensure that they are fixed during operation, a locking member is provided at the top between the fixed cover body 203 and the movable cover body 204, which can lock the two). The movable cover body 204 is pulled by the handle at the end of the movable cover body 204 to pivot, and the grinding wheel body 201 is replaced.

[0051] Preferably, if Figure 1 、 Figure 2 and Figure 4As shown, in an embodiment, the cutting grinding wheel device also includes a pad assembly, which may include a pad body 501 and a slide 502, the slide 502 being arranged at the bottom of the pad body 501, and the device body 1 being arranged at the top of the pad body 501, the pad body 501 can be ground by an external workpiece to adjust the height of the device body 1 and enable the grinding wheel body 201 to be aligned with the workpiece 7 to be processed.

[0052] The bottom of the slide 502 is provided with a slider that is slidably connected to the track 601 of the grinder 6, and the side of the slide 502 is provided with a grating ruler 503. The grating ruler 503 can perform high-precision position detection on the movement of the device body 1 on the track 601 to ensure that the compensation is carried out correctly and smoothly.

[0053] The compensation process of the cutting grinding wheel device with compensation function is as follows: before work, the workpiece 7 is clamped between the headstock and tailstock of the grinding machine 6, and a suitable grinding wheel body 201 is selected. By means of meter detection, the centers of the headstock, tailstock and grinding wheel body 201 are made to be at the same height, and then the center of the workpiece 7 is made to be at the same height as the center of the grinding wheel body 201. The mounting plate 301 is perpendicular to the grinding wheel body 201, and the extension part 305 is parallel to the sensor 303, so that the sensor 303 is perpendicular to the grinding wheel body 201. By means of meter detection, it is ensured that the laser emitted by the sensor 303 is irradiated on the straight line between the point on the grinding wheel body 201 and the center of the grinding wheel body 201 ( Figure 8 OB in the figure) and the straight line between the center of the grinding wheel body 201 and the center of the workpiece 7 to be processed ( Figure 8 OA) in are perpendicular to each other.

[0054] During operation, the grinding wheel body 201 rotates, and the air blower 4 blows air to blow away the cutting fluid irradiated by the laser on the grinding wheel body 201, thereby preventing the sensor 303 from being affected by the cutting fluid. The shape error of the grinding wheel body 201 is detected by laser ranging and calculation, and the error value is transmitted to the control system of the grinder 6. The control system controls the linear motor of the cutting grinding wheel device with compensation function, and the linear motor controls the grinding wheel body 201 to advance or retreat a certain distance toward the workpiece 7 after a certain period of time. In this way, it can be ensured that the center diameter size of the workpiece 7 to be processed remains consistent during the grinding process of the workpiece 7 to be processed, thereby ensuring the processing accuracy. The rotating arm 302 of the sensor 303 is in a horizontal position when working, and can be rotated to a vertical position when not working to avoid interference between the sensor 303 and the dressing wheel during operation.

[0055] The cutting grinding wheel device with compensation function can realize real-time position compensation of the grinding wheel body through the cooperation of the device body, the grinding wheel assembly and the compensation assembly, and can ensure that the size of each section of the middle diameter of the thread of the workpiece to be processed is consistent. The sensor is arranged on the upper part of the grinding wheel body in an adjustable position through a rotating arm, so that the extension line of the sensor's emission port passes through the center of the grinding wheel body, and then the laser emitted by the sensor can be aligned with the center of the grinding wheel body to ensure the accuracy of laser detection. The cutting grinding wheel device with compensation function has a simple overall structure, is easy to assemble, and is easy to operate. Before processing the workpiece to be processed, the position of the sensor can be adjusted to realize real-time detection of the outer contour state of the grinding wheel body during processing, thereby ensuring the size of the middle diameter of the workpiece to be processed is consistent, maintaining high-precision processing, and improving the processing quality of the product.

[0056] In addition, if Figure 7 According to a second aspect of the present invention, a grinding machine 6 is provided, which includes the cutting wheel device with compensation function as described above. During the machining of a workpiece 7, the grinding machine 6 realizes real-time compensation of the grinding wheel body 201 through the cutting wheel device.

[0057] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed in the present application, or perform equivalent replacements for some of the technical features thereof. These modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims.

Claims

1. A cutting wheel device with compensation function, used for a grinding machine, characterized in that: The cutting grinding wheel device includes a device body, a grinding wheel assembly and a compensation assembly, the grinding wheel assembly and the compensation assembly are both arranged on the device body, the device body can be slidably set on the track of the grinding machine, the grinding wheel assembly includes a grinding wheel body, and the compensation assembly includes a mounting plate, a rotating arm and a sensor, the mounting plate is set on the grinding wheel assembly, the first end of the rotating arm can be adjusted to be arranged on the mounting plate, the second end of the rotating arm extends out of the mounting plate, the sensor is set on the second end of the rotating arm, and the sensor is adjustably arranged on the upper part of the grinding wheel body through the rotating arm so that the extension line of the emission port of the sensor body passes through the center of the grinding wheel body.

2. The cutting grinding wheel device with compensation function according to claim 1, characterized in that: The grinding machine is used to process a workpiece to be processed, the center of the workpiece to be processed is at the same height as the center of the grinding wheel body, the mounting plate is perpendicular to the grinding wheel body, and the sensor is parallel to the mounting plate so that the sensor and the grinding wheel body are perpendicular, so that a straight line formed by a point where the laser emitted by the sensor shines on the grinding wheel body and the center of the grinding wheel body and a straight line formed by the center of the grinding wheel body and the center of the workpiece to be processed are perpendicular to each other; The grinding machine also includes a control system. The sensor detects the shape error of the grinding wheel body by emitting laser and transmits the error value to the control system. The control system drives the device body to move on the track of the grinding machine by controlling the motor, so that the grinding wheel body moves forward or backward a corresponding distance toward the direction of the workpiece to be processed.

3. The cutting wheel device with compensation function according to claim 1, characterized in that: The rotating arm includes a telescopic portion and an extension portion. The telescopic portion is arranged on the mounting plate with an adjustable length. The first end of the extension portion is arranged on the telescopic portion. The sensor is arranged on the second end of the extension portion with a changeable position.

4. The cutting wheel device with compensation function according to claim 3, characterized in that: The telescopic portion includes a first telescopic block and a second telescopic block, the first end of the second telescopic block is inserted into the interior of the first telescopic block, a sliding limit groove is provided in the interior of the first telescopic block, and a sliding block is provided on the outer wall of the second telescopic block, and the first telescopic block and the second telescopic block are slidably docked with each other by docking the sliding block and the sliding limit groove.

5. The cutting wheel device with compensation function according to claim 3, characterized in that: A locking slot is formed at the second end of the extension portion. The opening direction of the locking slot is parallel to the extending direction of the extension portion. The sensor is arranged in the locking slot in a repositionable manner through a locking member.

6. The cutting grinding wheel device with compensation function according to claim 1, characterized in that: The cutting grinding wheel device further comprises an air blowing device, wherein the air blowing device comprises an air blowing head, and the air blowing head is arranged on the upper part of the grinding wheel body.

7. The cutting wheel device with compensation function according to claim 1, characterized in that: The device body comprises a turntable and a mounting plate. The mounting plate is rotatably arranged on the turntable. The grinding wheel assembly and the compensation assembly are both arranged on the mounting plate.

8. The cutting wheel device with compensation function according to claim 1, characterized in that: The grinding wheel assembly further includes a grinding wheel electric spindle and a protective cover, wherein the grinding wheel electric spindle is arranged on the side of the grinding wheel body and connected to the grinding wheel body, and the mounting plate is arranged on the outer shell of the grinding wheel electric spindle; The protective cover comprises a fixed cover body and a movable cover body, the fixed cover body is arranged on the device body, the movable cover body is pivotally connected to the fixed cover body, and the grinding wheel body is arranged between the movable cover body and the fixed cover body.

9. The cutting wheel device with compensation function according to claim 1, characterized in that: The cutting grinding wheel device also includes a pad assembly, which includes a pad body and a slide. The slide is arranged at the bottom of the pad body, and the device body is arranged at the top of the pad body. A slider is provided at the bottom of the slide and is slidably connected to the track of the grinder. A grating scale is provided on the side of the slide.

10. A grinding machine, characterized in that: The grinding machine comprises the cutting grinding wheel device with compensation function according to any one of claims 1 to 9.

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