CN114619345A

CN114619345A - Composite grinding machine

Info

Publication number: CN114619345A
Application number: CN202210299937.8A
Authority: CN
Inventors: 叶培仓; 李锡晗; 文斌; 傅向东; 李戈; 周志雄; 陈思宇
Original assignee: Hunan Yuhuan Precision Manufacturing Co ltd
Current assignee: Hunan Yuhuan Precision Manufacturing Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-06-14

Abstract

The invention relates to a composite grinding machine, wherein in the grinding operation, a wheel carrier is driven to move along a second direction, so that a working head can approach or be far away from a rotary table, and the grinding processing of the working head is facilitated. Because the revolving stage setting is on the slip table, the revolving stage passes through the slip table promptly and can follow first direction horizontal migration on the lathe bed, consequently, the revolving stage can move in two dimensions at least: move in a first direction and rotate about its axis. Therefore, in the grinding process, the two shafts of the rotary table are linked, so that the smooth switching of the grinding process of different surfaces on the workpiece is ensured. So, this application is integrated on the revolving stage with the removal of first direction, avoids moving about the stand inertia too big and lead to the abrasive machining precision not high and can't realize high accuracy and high dynamic performance, promotes the abrasive machining quality. In addition, the movement in the first direction is integrated on the rotary table, two sets of upright post shafting can be avoided, the occupied area is reduced, the structure is compact, and the manufacturing cost is reduced.

Description

Composite grinding machine

Technical Field

The invention relates to the technical field of machining, in particular to a composite grinding machine.

Background

A grinding machine is a machine tool that grinds a surface of a workpiece using a grinding wheel, and for example, most machine tools grind an inner circle, an outer circle, a plane, or the like of the workpiece using a grinding wheel rotating at a high speed.

The existing vertical grinding machine mainly comprises: single-column and double-column. Single post grinders typically integrate side-to-side movement of the grinding head on the post. However, the left-right movement inertia of the stand column is too large, the difficulty is high when the stand column is in linkage action with the rotary table, the control accuracy is not high enough, and high-precision operation is difficult to realize.

And two column grinding machines increase one set of stand structures on grinding the body: one column is provided with an inner and outer circle grinding head, and the other column is provided with an end face grinding head. Although the precision is easy to guarantee, the manufacturing cost is high and the occupied area is large. In addition, if the X-axis movement of the upright post and the linkage of the rotary table are realized, the stroke of the X-axis is very large, and the processing and the manufacturing are not facilitated.

Disclosure of Invention

Based on this, it is necessary to provide a compact structure and low manufacturing cost; and the composite grinder has high operation precision.

A compound grinding machine comprising: a bed body; the upright column is positioned on one side of the lathe bed, and at least part of the upright column is arranged higher than the lathe bed in the height direction of the composite grinder; the sliding table is arranged on the lathe bed in a sliding mode along a first direction; the rotary table is arranged on the sliding table in a rotating mode around the axis of the rotary table and used for fixing the workpiece; the wheel carrier is arranged on the upright post in a sliding mode along a second direction, the first direction is intersected with the second direction, and a working head used for grinding the workpiece is arranged on the wheel carrier.

According to the composite grinding machine, in the grinding operation, the wheel frame is driven to move along the second direction, so that the working head can be close to or far away from the rotary table, and the grinding operation or the maintenance operation of the working head is facilitated. Because the revolving stage setting is on the slip table, the revolving stage passes through the slip table promptly and can follow first direction horizontal migration on the lathe bed, consequently, the revolving stage can move in two dimensions at least: move in a first direction and rotate about its axis. In the grinding process, the two shafts of the rotary table are linked, so that the grinding process of different surfaces on the workpiece is smoothly switched. So, this application is integrated on the revolving stage with the removal of first direction, avoids moving about the stand inertia too big and lead to the abrasive machining precision not high and can't realize high accuracy and high dynamic performance, promotes the abrasive machining quality. In addition, the movement in the first direction is integrated on the rotary table, so that two sets of upright post shaft systems can be avoided, the occupied area is reduced, the compact structure is ensured, and the manufacturing cost is reduced; meanwhile, the wide coverage rotating speed and rigidity range of each functional working head can be ensured, and the processing efficiency and the manufacturability are effectively improved.

In one embodiment, the turntable includes a base, a fixed disk, a first driver, a first bearing, and a spindle mounted on the base through the first bearing, the base is mounted on the sliding table, the fixed disk is connected to the spindle for mounting the workpiece, and the first driver drives the spindle to rotate around its axis.

In one embodiment, an oil cavity is formed in the seat body, the oil cavity is communicated with the position of the first bearing and is used for being communicated with an oil tank, and lubricating oil in the oil cavity can flow back into the oil tank by force.

In one embodiment, the seat body includes a first box and a second box mounted on the first box, the spindle is mounted in the second box through the first bearing and extends into the first box, and the oil cavity is formed between the mounting surfaces of the first box and the second box.

In one embodiment, the turntable further comprises an encoder for acquiring rotation information of the spindle.

In one embodiment, the compound grinding machine further comprises a sliding seat and a rotating mechanism arranged on the sliding seat, the sliding seat is arranged on the upright column in a sliding mode along the second direction, the wheel frame is arranged on the rotating mechanism, and the rotating mechanism is used for driving the wheel frame to rotate around the axis of the wheel frame to be adjusted.

In one embodiment, the rotating mechanism includes a second driver, a second bearing and a third bearing which are arranged in the sliding seat at intervals, and a rotating shaft sleeved in the second bearing and the third bearing, the wheel carrier is connected with the rotating shaft, and the second driver is used for driving the rotating shaft to rotate around the axis of the rotating shaft.

In one embodiment, the rotating mechanism further comprises a clamping assembly, the second bearing is arranged close to the wheel carrier relative to the third bearing, and the clamping assembly is arranged between the second bearing and the third bearing and close to the third bearing and used for clamping the rotating shaft.

In one embodiment, the clamping assembly includes a clamping body and a cylinder body sleeved outside the rotating shaft, the cylinder body is provided with a chamber extending circumferentially around the rotating shaft, one chamber wall of the chamber facing the rotating shaft includes an inner annular wall with elastic deformation, the clamping body is disposed in the chamber, and when the clamping body deforms radially along the rotating shaft, the clamping body can drive the inner annular wall to elastically and radially clamp the rotating shaft.

In one embodiment, the compound grinding machine further comprises a measuring device for measuring positional data of the workpiece.

In one embodiment, the compound grinding machine further comprises a trimming device, wherein the trimming device is arranged on the sliding table and is used for trimming the working head.

In one embodiment, the compound grinding machine further comprises a calibration device, wherein the calibration device is arranged on the sliding table and used for calibrating the initial position of a measuring head of the measuring device.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a compound grinding machine according to the present embodiment;

fig. 2 is a sectional view of a turntable structure according to the present embodiment;

FIG. 3 is a sectional view of the slider and the rotating mechanism in the embodiment;

FIG. 4 is a schematic structural view of the clamping assembly according to the present embodiment;

fig. 5 is a schematic cross-sectional view of the clamping assembly of fig. 4 taken along the direction a-a.

100. A compound grinding machine; 110. a bed body; 120. a turntable; 121. a base body; 1211. a first case; 1212. a second case; 1213. an oil chamber; 122. a main shaft; 123. a first bearing; 124. a first driver; 125. fixing the disc; 126. an encoder; 127. a sliding table; 130. a wheel carrier; 131. a working head; 140. a column; 150. a slide base; 160. a rotating mechanism; 161. a second driver; 162. a second bearing; 163. a third bearing; 164. a rotating shaft; 165. a clamping assembly; 1651. a cylinder body; 1652. a chamber; 1653. an inner annular wall; 1654. a clamp body; 166. a grating; 170. a measuring device; 171. a dressing device; 172. and a calibration device.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In one embodiment, referring to fig. 1, a compound grinding machine 100 includes: the lathe bed 110, the column 140, the sliding table 127, the turntable 120 and the wheel frame 130. The column 140 is located on the bed 110 side, and is disposed at least partially higher than the bed 110 in the height direction of the compound grinding machine 100. The slide table 127 is slidably disposed on the bed 110 along a first direction. The turntable 120 is rotatably provided on the slide table 127 about its axis for fixing the workpiece. The wheel frame 130 is slidably disposed on the upright 140 along the second direction. The first direction intersects with the second direction, and the wheel frame 130 is provided with a working head 131 for grinding a workpiece.

In the grinding operation of the compound grinding machine 100, the wheel frame 130 is driven to move along the second direction, so that the working head 131 can approach or move away from the turntable 120, and the grinding operation or the maintenance operation of the working head 131 is facilitated. Since the turntable 120 is provided on the slide table 127, that is, the turntable 120 can move left and right in the first direction on the bed 110 through the slide table 127, the turntable 120 can move in at least two dimensions: move in a first direction and rotate about its axis. In this way, during grinding, the two shafts of the rotary table 120 are linked to ensure smooth switching of grinding on different surfaces of the workpiece. Therefore, the movement in the first direction is integrated on the rotary table 120, the situation that the grinding machining precision is not high and high precision and high dynamic performance cannot be realized due to the fact that the left-right movement inertia of the upright column 140 is too large is avoided, and the grinding machining quality is improved. In addition, the movement in the first direction is integrated on the rotary table 120, so that two sets of upright column 140 shafting can be avoided, the occupied area is reduced, the compact structure is ensured, and the manufacturing cost is reduced; meanwhile, the wide coverage rotating speed and rigidity range of each functional working head 131 can be ensured, and the processing efficiency and the manufacturability are effectively improved.

It should be noted that, the sliding of the sliding table 127 on the bed 110 may be implemented in various ways, and only the sliding table 127 can slide along the first direction. Such as: a sliding chute is arranged on the sliding table 127, and a guide rail matched with the sliding chute is arranged on the lathe bed 110; alternatively, the sliding table 127 is provided with rollers or balls, and the bed 110 is provided with a rolling groove or the like. In addition, the driving of the sliding table 127 on the bed body 110 can be realized by an air cylinder, a hydraulic cylinder, an electric cylinder, a direct drive motor and the like.

Specifically, in some embodiments, referring to fig. 1, a hydrostatic guideway is disposed on the bed 110, and the sliding table 127 is mounted on the hydrostatic guideway. Therefore, the hydrostatic guide rail is different from a common rolling guide rail, the problems of unstable transmission and low-speed crawling caused by friction of the traditional screw rod and guide rail are effectively solved (for example, the friction coefficient of the hydrostatic guide rail is only about 0.005, and the friction coefficient of a linear guide rail is generally 0.15), and the effects of low heating, no abrasion, high speed, high precision and the like are realized. In addition, the sliding table 127 adopts a direct drive motor on the lathe bed 110, so that the problems of reverse clearance, quadrant passing protrusion and the like do not exist, and high-precision machining of inner and outer contours is further realized.

It should also be noted that the first direction intersects the second direction, and it should be understood that: the moving direction of the sliding table 127 on the bed 110 can be vertical to the moving direction of the wheel carrier 130 on the upright column 140; non-vertical designs are also possible, such as: the two directions are designed into acute angle and obtuse angle. When the first direction is perpendicular to the second direction, the grinding precision is more accurate, and the operation is more convenient. For convenience of understanding, taking fig. 1 as an example, the first direction is a direction indicated by any arrow of S1 in fig. 1; the second direction is a direction indicated by an arrow of S2 in fig. 1.

For grinding of the non-circular surface, the rotary table 120 has axial rotation and linear downward movement in the first direction at the same time, the machining position of the rotary table 120 on the lathe bed 110 is dynamically adjusted by utilizing two-axis linkage according to the change of the curved surface of the non-circular surface, so that the working head 131 is accurately matched on a workpiece, and the machining precision is improved.

Further, referring to fig. 2, the turntable 120 includes a base 121, a fixed plate 125, a first driver 124, a first bearing 123, and a spindle 122 mounted on the base 121 through the first bearing 123. The base 121 is mounted on the sliding table 127. A holding pan 125 is coupled to spindle 122 for mounting a workpiece. The first driver 124 drives the main shaft 122 to rotate around its axis. Therefore, when the first driver 124 is activated, the main shaft 122 can be driven to rotate on the seat 121, so as to drive the workpiece on the fixed disk 125 to rotate, so as to meet the grinding requirements of different surfaces of the workpiece.

It should be noted that, the fixing manner of the workpiece on the fixing plate 125 may be various, and only the fixing of the workpiece is required, for example: the workpiece is fixed to the fixing plate 125 in a snap-fit manner, a bolt connection manner, a magnetic attraction manner, or the like. In some embodiments, the mounting plate 125 is an electro-permanent magnetic chuck, and the workpiece is magnetically attached to the mounting plate 125.

It should be further noted that the first driver 124 drives the spindle 122 to rotate around its own axis, and the implementation manner thereof is various, such as: the first driver 124 is directly connected with the main shaft 122 through a coupler; alternatively, a gear set is used for meshing transmission between the first driver 124 and the main shaft 122; alternatively, the first driver 124 and the main shaft 122 are driven by a belt and roller combination structure. The first driver 124 may be a motor.

Alternatively, the mounting manner of the seat body 121 on the sliding table 127 may be, but is not limited to, bolting, clamping, welding, riveting, pinning, integrally forming, and the like. Wherein, the integral molding can be casting, die casting, injection molding and the like.

Further, referring to fig. 2, an oil chamber 1213 is provided in the seat body 121. The oil chamber 1213 communicates with the position where the first bearing 123 is located, and is used to communicate with the oil tank. The lubricating oil in the oil chamber 1213 can be forced to flow back into the oil tank. Therefore, the lubricating oil in the oil tank can enter the position of the first bearing 123 through the oil chamber 1213, so that the first bearing 123 is lubricated, the smoothness of rotation is improved, and the operation precision is improved. Meanwhile, lubricating oil is introduced into the first bearing 123 through the oil chamber 1213, so that the rotary part on the turntable 120 is supported by the pressure of the liquid, and the effects of low heat generation during rotation, no abrasion, high precision and the like are achieved.

In addition, the lubricating oil in the position of the first bearing 123 can flow back into the oil tank through the oil cavity 1213, so that effective and stable oil return is realized, and the oil return problem of the movable static pressure part is effectively solved. During the oil return process, the lubricating oil in the first bearing 123 can be forced to flow back into the oil tank through the oil pump, so that the oil pump is used for forced flow back to adjust the pressure in the oil cavity 1213, further the displacement of the main shaft 122 is controlled, the main shaft 122 generates smaller displacement under the condition of larger load, and the rigidity and the bearing capacity of the main shaft 122 are enhanced.

It should be noted that the oil chamber 1213 can be designed in various shapes such as arc, ring, square, etc. in the seat body 121. When the oil chamber 1213 is of an annular design, i.e., the oil chamber 1213 extends around the axis of the main shaft 122, the lubrication in the first bearing 123 is more uniform and the lubrication effect is better.

It should be further noted that the communication manner between the oil chamber 1213 and the first bearing 123 may be a hole formed between the oil chamber 1213 and the first bearing 123, or a pipe fitting or other structure. Similarly, the oil chamber 1213 communicates with the oil tank by opening a hole in the seat body 121 and providing a nozzle or the like in the hole, and connecting the nozzle to the oil tank via a pipe.

In one embodiment, referring to fig. 2, the base 121 includes a first housing 1211 and a second housing 1212 mounted on the first housing 1211. The main shaft 122 is installed in the second housing 1212 through the first bearing 123 and extends into the first housing 1211. An oil chamber 1213 is formed between the fitting surfaces of the first case 1211 and the second case 1212. Thus, by using the base member, the oil chamber 1213 is formed between the first casing 1211 and the second casing 1212, which not only can realize the stable static pressure support of the first bearing 123, but also can realize the forced backflow of the lubricating oil, thereby ingeniously solving the oil return problem. In addition, the oil chamber 1213 is arranged between the first box 1211 and the second box 1212, so that the introduction of an additional structure is reduced by using the basic member; and the inner space of the base body 121 is effectively utilized, so that the height of the whole part of the rotary table 120 is reduced, and the structure is compact.

It should be noted that the assembling surface of the first casing 1211 and the second casing 1212 should be understood as: the fitting surface or the abutting surface between the first casing 1211 and the second casing 1212 may be, for example: the assembly surface of the first casing 1211 is a bottom surface of the first casing 1211 attached to the second casing 1212, and the assembly surface of the second casing 1212 is a top surface of the second casing 1212 attached to the first casing 1211.

Meanwhile, the fuel tank between the first casing 1211 and the second casing 1212 may be formed in a manner of: a groove is formed on the assembly surface of the first case 1211 to make the assembly surface concave to form a concave space, then the second case 1212 is fitted on the first case 1211, and the concave space is closed by the assembly surface on the second case 1212 to form an oil chamber 1213; or, a groove is formed on the assembly surface of the second case 1212, so that the cover assembly surface is recessed into a recessed space, and then the first case 1211 is fitted on the second case 1212, and the recessed space is closed by the assembly surface of the first case 1211; alternatively, the first casing 1211 and the second casing 1212 may be provided with grooves, respectively.

Alternatively, the connection between the first casing 1211 and the second casing 1212 may be, but is not limited to, bolting, clamping, riveting, welding, etc.

In one embodiment, referring to fig. 2, the turntable 120 further includes an encoder 126, and the encoder 126 is used to obtain the rotation information of the spindle 122. In this way, the rotation information of the spindle 122 is accurately obtained through the encoder 126, such as: a rotation angle, etc., so that the compound grinding machine 100 can precisely control the position information of the workpiece, improving the grinding accuracy.

In one embodiment, referring to fig. 3, the compound grinding machine 100 further includes a slide 150 and a rotating mechanism 160 disposed on the slide 150. The sliding base 150 is slidably disposed on the pillar 140 along a second direction. The wheel carrier 130 is provided to the rotating mechanism 160. The rotating mechanism 160 is used for driving the wheel frame 130 to rotate around its own axis for adjustment, i.e. the grinding angle of the working head 131 can be adjusted around the axis of the wheel frame 130. When a workpiece with an inclined plane is operated by the conventional grinding machine, a grinding surface of the working head 131 is partially provided with a corresponding inclined plane, so that the manufacturing cost of the working head 131 is increased, the loss of the working head 131 is easily accelerated, and the service life is reduced. The other part sets the working head 131 to be adjusted within a fixed angle range, and the aim is that the grinding of the inclined surface of the workpiece cannot be realized only by switching different types of grinding heads. Therefore, the wheel carrier 130 is designed to rotate around the axis of the wheel carrier to be adjusted, the working head 131 is guaranteed to have any indexing function, two-axis linkage is achieved by matching with linear movement in the second direction, grinding machining on different surfaces (such as inclined surfaces, planes and the like) of a workpiece is accurately controlled, grinding of the inclined surfaces is met, abrasion is reduced, and the service life of the working head 131 is prolonged. Meanwhile, the design of any indexing function realizes larger processing capacity under the same condition, and is beneficial to improving the operation quality. Wherein, the rotation adjustment of the wheel frame 130 around its own axis is understood as: the wheel frame 130 can rotate steplessly around its axis and can be clamped after rotation to maintain the rotationally adjusted angle.

It should be noted that the slide carriage 150 may adopt a rolling guide rail or a static pressure guide rail on the column 140; of course, other rail configurations may be used to drive the carriage 150 in the first direction on the column 140. In some embodiments, the second direction may be a height direction of the column 140, and the first direction is a length direction of the bed 110.

It should be noted that the number of the working heads 131 may be one or more. When the number of the working heads 131 is plural, the plural working heads 131 are arranged at intervals around the axis of the wheel frame 130. Therefore, the multi-station conversion and any indexing functions of the working head 131 can be realized, and high-precision positioning is realized. Wherein, part of the plurality of working heads 131 is an inner and outer circular grinding head; the part is a plane grinding head and the like. For example: the number of the working heads 131 is three, one is an inner and outer profile surface grinding head, one is a conical surface grinding head, and the other is an end surface grinding head. Meanwhile, the wheel carrier 130 can be an internal electric main shaft 122 structure, so that station conversion is realized, high-precision positioning at any angle can be realized, and the positioning precision is +/-2, so that any conical surface machining is realized, the linkage interpolation machining conical surface is avoided, and the grinding wheel loss is reduced.

Further, referring to fig. 3, the rotating mechanism 160 includes a second driver 161, a second bearing 162 and a third bearing 163 disposed in the sliding base 150 at intervals, and a rotating shaft 164 sleeved in the second bearing 162 and the third bearing 163. The wheel carrier 130 is connected with the rotating shaft 164. The second driver 161 is used to drive the rotating shaft 164 to rotate around its axis. Thus, the second bearing 162 and the third bearing 163 are spaced apart from each other, so that the rotation of the rotating shaft 164 is smoother, which is beneficial to improving the operation precision.

It should be noted that the second driver 161 may be a motor, and may be directly driven or indirectly driven when cooperating with the rotating shaft 164. The direct drive is to use a coupling to connect the output shaft of the second driver 161 and the rotating shaft 164 coaxially. The indirect drive is a gear set, a chain and gear combination, a belt and roller combination, etc., so that the second driver 161 drives the rotating shaft 164 to rotate. Of course, to achieve high precision rotational control of the shaft 164, a grating 166 may be disposed on the shaft 164, such as: high precision angle grating 166, and the like.

Further, referring to fig. 3, the rotating mechanism 160 further includes a clamping assembly 165. The second bearing 162 is disposed adjacent to the wheel frame 130 with respect to the third bearing 163. A clamping assembly 165 is located between the second bearing 162 and the third bearing 163 and is disposed proximate to the third bearing 163 for clamping the shaft 164. Therefore, the clamping assembly 165 is disposed between the second bearing 162 and the third bearing 163, so that the clamping force on the rotating shaft 164 is more balanced, and the structural stability is ensured. Since the second bearing 162 is disposed close to the wheel carrier 130, the second bearing 162 serves as a main force-receiving bearing on the rotation shaft 164. For this reason, this application is close to third bearing 163 with clamping component 165 to keep away from second bearing 162 setting, effectively reduce the influence to the bearing when radially pressing from both sides, furthest's assurance rotational accuracy.

In one embodiment, referring to fig. 4 and 5, the clamping assembly 165 includes a clamping body 1654 and a cylinder 1651 sleeved outside the rotating shaft 164. The cylinder 1651 is provided with a chamber 1652 extending circumferentially around the rotating shaft 164, a wall of the chamber 1652 facing the rotating shaft 164 comprises an inner annular wall 1653 having elastic deformation, and the clamping body 1654 is provided in the chamber 1652, so that when the clamping body 1654 deforms along the radial direction of the rotating shaft 164, the clamping body 1654 can drive the inner annular wall 1653 to elastically and radially clamp the rotating shaft 164. When the clamping body 1654 elastically and radially clamps the rotating shaft 164, interference on the motor is avoided, and therefore superposition of the clamping assembly 165 and motor holding torque can be achieved. Therefore, when the working head 131 is switched to the working position, the gas in the clamping body 1654 is exhausted or the chamber 1652 is inflated and pressurized, so that at least part of the clamping body 1654 deforms along the radial direction of the rotating shaft 164 to drive the inner annular wall 1653 to deform to abut against the rotating shaft 164, effective clamping is achieved, the working head 131 is guaranteed to be stably located at the working position, and grinding precision is improved.

It should be noted that when the interior of the clamping body 1654 is pre-flushed with pressurized gas, the clamping body 1654 deforms along the axial direction of the rotating shaft 164, and at the same time, the radial portion of the clamping body 1654 retracts, so that the inner annular wall 1653 separates from the rotating shaft 164 to contact the clamping of the rotating shaft 164. The clamp body 1654 may be a spring bellows with a rated locking torque of 2900N · m to increase the rigidity of the working head 131 during grinding at a fixed angle.

In addition, to achieve radially flexible clamping, a flexible pad may be disposed on the portion of the clamping body 1654 facing the rotating shaft 164, such as: rubber gaskets, and the like. Through the high-precision connection of the end parts, the influence on the rotating shaft 164 is reduced during clamping, and the rotating shaft 164 is prevented from being twisted, so that the clamping component 165 and the motor can provide torque at the same time, and large-torque clamping is realized.

In one embodiment, referring to fig. 1, the compound grinding machine 100 further includes a measuring device 170. The measuring device 170 is used to measure position data of the workpiece. Therefore, the automatic tool setting device has an online automatic measurement function so as to realize automatic online measurement and automatic tool setting. Wherein the measuring device 170 may be a contact-type side head.

It should be noted that the measuring device 170 may be disposed on the bed 110, or may be disposed on the column 140; of course, it may be provided on the slider 150, etc. Meanwhile, the measuring device 170 can rotate around the axis of the measuring device, and the position information of the workpiece can be better measured by the measuring device 170 in a rotating mode, so that the operation precision is improved.

In one embodiment, referring to fig. 1, the compound grinding machine 100 further includes a dressing device 171. The trimming device 171 is mounted on the sliding table 127 and used for trimming the working head 131 and improving the grinding quality.

In one embodiment, referring to fig. 1, the compound grinding machine 100 further includes a calibration device 172. The calibration device 172 is installed on the sliding table 127, and is configured to calibrate an initial position of the measuring head of the measuring device 170, so as to ensure accuracy and reliability of measurement.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A compound grinding machine, comprising:

a bed body;

the upright column is positioned on one side of the bed body, and at least part of the upright column is arranged higher than the bed body in the height direction of the composite grinding machine;

the sliding table is arranged on the lathe bed in a sliding mode along a first direction;

the rotary table is arranged on the sliding table in a rotating mode around the axis of the rotary table and used for fixing the workpiece;

the wheel carrier is arranged on the upright post in a sliding mode along a second direction, the first direction is intersected with the second direction, and a working head used for grinding the workpiece is arranged on the wheel carrier.

2. The compound grinding machine of claim 1, wherein the turntable comprises a base, a fixed disk, a first driver, a first bearing and a main shaft mounted on the base through the first bearing, the base is mounted on the sliding table, the fixed disk is connected with the main shaft and used for mounting the workpiece, and the first driver drives the main shaft to rotate around the axis of the main shaft.

3. The compound grinding machine as claimed in claim 2, wherein an oil chamber is provided in the body, the oil chamber being in communication with a location where the first bearing is located and being adapted to be in communication with an oil tank, lubricating oil in the oil chamber being capable of being forced to flow back into the oil tank.

4. The compound grinding machine as claimed in claim 3, wherein the housing includes a first housing and a second housing mounted on the first housing, the spindle is mounted in the second housing through the first bearing and extends into the first housing, and the oil chamber is formed between the fitting surfaces of the first housing and the second housing.

5. The compound grinding machine as claimed in claim 1, further comprising a sliding base and a rotating mechanism disposed on the sliding base, wherein the sliding base is slidably disposed on the column along a second direction, and the wheel carrier is disposed on the rotating mechanism, and the rotating mechanism is configured to drive the wheel carrier to rotate and adjust around its axis.

6. The compound grinding machine of claim 5, characterized in that the rotating mechanism comprises a second driver, a second bearing and a third bearing which are arranged in the sliding base at intervals, and a rotating shaft sleeved in the second bearing and the third bearing, wherein the wheel carrier is connected with the rotating shaft, and the second driver is used for driving the rotating shaft to rotate around the axis of the rotating shaft.

7. The compound grinding machine as defined in claim 6, wherein the turning mechanism further includes a clamping assembly, the second bearing being disposed adjacent the wheel carrier relative to the third bearing, the clamping assembly being disposed between the second bearing and the third bearing and adjacent the third bearing for clamping the rotating shaft.

8. The compound grinding machine of claim 7, wherein the clamping assembly comprises a clamping body and a cylinder body sleeved outside the rotating shaft, the cylinder body is provided with a chamber extending circumferentially around the rotating shaft, the chamber comprises an inner annular wall with elastic deformation facing a wall of the rotating shaft, the clamping body is arranged in the chamber, and when the clamping body deforms in the radial direction of the rotating shaft, the clamping body can drive the inner annular wall to elastically and radially clamp the rotating shaft.

9. The compound grinding machine as claimed in any one of claims 1 to 8, further comprising a measuring device for measuring positional data of the workpiece; and/or the presence of a gas in the atmosphere,

the composite grinding machine further comprises a trimming device, wherein the trimming device is arranged on the sliding table and is used for trimming the working head.

10. The compound grinding machine as claimed in any one of claims 1 to 8, further comprising a calibration device mounted on the slide table for initial position calibration of a probe of the measuring device.