Horizontal machine tool knife rest multi-axis positioning device and method

Abstract

The invention relates to the technical field of horizontal machine tools, in particular to a horizontal machine tool knife rest multi-axis positioning device and method. The horizontal machine tool knife rest multi-axis positioning method comprises the steps that a rotary seat is horizontally placed, a first positioning assembly is assembled on the rotary seat, and a first mandrel is in a vertical state; the tool rest spindle is placed on a rotary seat, and a connecting screw is screwed to a first locking degree; a second positioning assembly is assembled on the tool rest spindle, and a second mandrel is in a horizontal state; the first mandrel is lifted, the position of the tool rest spindle is adjusted, a notch in the upper end of the first mandrel is matched with the second mandrel in an inserted mode, and the first mandrel is orthogonal to the second mandrel; screwing the connecting screw to a second locking degree; the position of the tool rest spindle is adjusted, the end face of the second receiving disc abuts against the outer circle face of the notch, and the actual distance between the rotation center axis of the rotation base and the tool center of the tool rest spindle meets the designed distance; and screwing the connecting screw to a third locking degree, wherein the third locking degree is complete screwing. And precise positioning of the tool rest assembly is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of horizontal machine tools, in particular to a multi-axis positioning device and method for a tool holder of a horizontal machine tool. BACKGROUND

[0002] During the use of a horizontal machine tool (such as a horizontal gear hobbing machine, a horizontal forming grinder, etc.), the tool holder needs to be rotated by a certain angle sometimes. Taking a gear hobbing machine as an example, the gear hobbing machine can cut straight teeth, helical teeth cylindrical gears, and can also process worm gears, chain wheels, etc. It is a gear processing machine tool that uses a hobbing cutter to process straight teeth, helical teeth and herringbone teeth cylindrical gears and worm gears by the generating method. When the gear hobbing machine switches to process different types of gears, the tool holder needs to be rotated by a certain angle, so the tool holder is usually fixed on a rotating base, and the tool holder is rotated to the required angle by rotating the rotating base.

[0003] To ensure the machining accuracy, the rotation center axis of the rotating base needs to be orthogonal to the rotation center axis of the tool spindle of the tool holder, and the rotation center axis of the rotating base needs to maintain a certain design distance from the tool center position of the tool holder. After the tool holder is fixedly installed on the rotating base, it forms a whole tool holder assembly. When the whole tool holder assembly is installed on the machine tool for use, the relative position between the tool holder and the rotating base cannot be adjusted, so precise positioning between the tool holder and the rotating base needs to be performed during the assembly of the tool holder and the rotating base, so as to ensure the machining accuracy. However, there is no device on the market for precise positioning during the assembly of the tool holder and the rotating base. SUMMARY

[0004] To solve the above technical problems, the present application provides a multi-axis positioning device and method for a tool holder of a horizontal machine tool.

[0005] In a first aspect, the present application provides a multi-axis positioning method for a tool holder of a horizontal machine tool, comprising: placing the rotating seat horizontally, assembling the first positioning assembly on the rotating seat, and making the first core shaft in the first positioning assembly in a vertical state; placing the tool holder spindle on the rotating seat, and screwing the connecting screw between the tool holder spindle and the rotating seat to a first locking degree; assembling the second positioning assembly on the tool holder spindle, and making the second core shaft in the second positioning assembly in a horizontal state; raising the first core shaft and adjusting the position of the tool holder spindle, so that the notch at the upper end of the first core shaft is inserted and matched with the second core shaft, so that the first core shaft is orthogonal to the second core shaft; screwing the connecting screw to a second locking degree, the second locking degree being greater than the first locking degree; Adjusting the position of the tool holder spindle so that the end face of the second locating component in the second locating component abuts against the outer cylindrical surface of the notch, so that the actual distance between the center axis of the swivel seat and the tool center of the tool holder spindle meets the design distance; Screwing the connecting screw to a third locking degree, the third locking degree being greater than the second locking degree, and the third locking degree being fully tightened.

[0006] Dismounting the first locating component and the second locating component.

[0007] In an embodiment, the swivel seat is horizontally placed, the first locating component is assembled on the swivel seat, and the first mandrel in the first locating component is in a vertical state, comprising: The swivel seat is elevated by a support, the first locating component comprises a first disk, a first mandrel and a sleeve, the first disk is assembled on the lower part of the swivel seat, the sleeve is assembled on the upper part of the swivel seat, and the first mandrel is inserted into the through hole of the sleeve and the first disk, so that the central axis of the first mandrel is coaxial with the center axis of the swivel seat.

[0008] In an embodiment, the first mandrel is inserted into the through hole of the sleeve and the first disk, so that the central axis of the first mandrel is coaxial with the center axis of the swivel seat, comprising: Adjusting the position of the sleeve so that the first mandrel can rotate relative to the sleeve, and then locking the sleeve.

[0009] In an embodiment, the second locating component is assembled on the tool holder spindle, and the second mandrel in the second locating component is in a horizontal state, comprising: The second locating component comprises a second disk and a second mandrel which are coaxial and fixedly connected with each other, the second disk is assembled on the tool holder spindle and coaxial with the tool holder spindle, and the second mandrel is in a horizontal state and located above the first mandrel.

[0010] In an embodiment, the first mandrel is elevated and the position of the tool holder spindle is adjusted, so that the notch at the upper end of the first mandrel is inserted and connected with the second mandrel, so that the first mandrel is orthogonal to the second mandrel, comprising: A standard push block is placed on the reference plane of one side of the upper surface of the swivel seat, a torsion spring table is provided on the standard push block, the torsion spring table points to the detection surface on the side of the second mandrel facing the reference plane, the standard push block is pushed to move horizontally on the reference plane, so as to detect the parallelism between the second mandrel and the reference plane through the torsion spring table, and the position of the tool holder spindle is adjusted until the parallelism meets the standard.

[0011] In an embodiment, the position of the tool holder spindle is adjusted so that the end face of the second chuck in the second positioning assembly abuts against the outer cylindrical surface of the slot, so that the actual distance between the center axis of the swivel seat and the tool center of the tool holder spindle meets the design distance, comprising: Based on the design distance, the radius machining size of the outer cylindrical surface of the slot and the thickness machining size of the second chuck are determined, so that the sum of the radius machining size of the outer cylindrical surface of the slot and the thickness machining size of the second chuck is equal to the design distance.

[0012] In an embodiment, the connecting screw is screwed to a third locking degree, which is greater than the second locking degree, and the third locking degree is fully tightened, comprising: The standard push block is pushed again to move horizontally on the reference plane, and the parallelism of the second mandrel and the reference plane is reviewed by the torsion spring table. If the parallelism meets the standard, the connecting bolt is screwed to a third locking degree.

[0013] In an embodiment, the multi-axis positioning method of the tool holder of the horizontal machine tool further comprises: The tool holder spindle and the swivel seat are fixedly connected to form a tool holder assembly, and the tool holder assembly is assembled to the rotating support of the horizontal machine tool through the swivel seat; The shaft sleeve is assembled to the swivel seat, and the first mandrel is inserted into the through hole of the shaft sleeve; The torsion spring table acts on the first mandrel, the horizontal machine tool is started to drive the rotating support to rotate, and the coaxiality of the first mandrel and the rotating support is detected by the torsion spring table; The position of the tool holder assembly on the rotating support is adjusted until the coaxiality meets the standard.

[0014] In an embodiment, the multi-axis positioning method of the tool holder of the horizontal machine tool further comprises: The horizontal machine tool comprises a column, and the rotating support is arranged on the column; The horizontal machine tool is started to drive the column to move horizontally, and the parallelism of the first mandrel and the bed is detected by the torsion spring table.

[0015] In a second aspect, the application provides a multi-axis positioning device for a tool holder of a horizontal machine tool, comprising: A first positioning assembly for connecting a swivel seat, comprising a first chuck, a shaft sleeve and a first mandrel; A second positioning assembly for connecting a tool holder spindle, comprising a second chuck and a second mandrel; The swivel seat is horizontally placed, and the tool holder spindle is placed on the swivel seat and connected by a connecting screw; The first disc is used to be assembled on the lower part of the rotary seat from bottom to top, the shaft sleeve is used to be assembled on the upper part of the rotary seat from top to bottom, and the first mandrel is inserted into the through hole of the shaft sleeve and the first disc, so that the first mandrel is in a vertical state; The second mandrel is coaxially arranged with the second disc and fixedly connected, and the second disc is assembled on the tool holder spindle, so that the second mandrel is in a horizontal state and located above the first mandrel; The first mandrel is provided with a notch at the upper end, the first mandrel can move upward relative to the shaft sleeve, the notch is inserted and matched with the second mandrel, so that the first mandrel and the second mandrel are orthogonal to each other; The outer circular surface of the notch abuts against the end surface of the second disc, so that the actual distance between the rotary center axis of the rotary seat and the tool center of the tool holder spindle meets the design distance.

[0016] Compared with the prior art, the application has the following beneficial effects: In the embodiment of the application, the first positioning assembly is assembled on the rotary seat, the second positioning assembly is assembled on the tool holder spindle, the first mandrel in the first positioning assembly is regarded as the extension of the rotary center of the rotary seat, the second mandrel in the second positioning assembly is regarded as the extension of the center of the tool holder spindle, the cooperation (understood as coupling) between the first mandrel and the second mandrel meets the two accuracy requirements that the rotary center axis of the rotary seat and the center axis of the tool holder spindle are orthogonal to each other and the actual distance between the rotary center axis of the rotary seat and the tool center of the tool holder spindle meets the design distance, the precise positioning between the tool holder spindle and the rotary seat is realized, and the machining precision of the workpiece is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 The flowchart of the horizontal machine tool tool holder multi-axis positioning method of the embodiment of the application; Figure 2 The three-dimensional structure schematic diagram of the horizontal machine tool tool holder multi-axis positioning device of the embodiment of the application; Figure 3 The sectional view of the horizontal machine tool tool holder multi-axis positioning device of the embodiment of the application; Figure 4 The schematic diagram of the horizontal machine tool tool holder multi-axis positioning device of the embodiment of the application assembled on the tool holder assembly; Figure 5 Figure 1 is a schematic view of a horizontal machine tool to which a tool holder assembly in an embodiment of the present application is assembled. DETAILED DESCRIPTION

[0019] The terms "first", "second", "third", and the like are merely used to distinguish descriptions, and do not represent the arrangement sequence, and cannot be understood as indicating or implying relative importance.

[0020] In addition, the terms "horizontal", "vertical", "overhanging", and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0021] In the description of the present application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0022] In the description of the present application, unless otherwise explicitly specified and limited, the terms "arrangement", "mounting", "connection", and "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements.

[0023] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings.

[0024] Please refer to Figure 1 , which shows a flowchart of a horizontal machine tool tool holder multi-axis positioning method provided in an embodiment of the present application. In the embodiment of the present application, the horizontal machine tool tool holder multi-axis positioning method can be realized by a positioning tool, wherein the positioning tool can be a horizontal machine tool tool holder multi-axis positioning device, please refer to Figure 2 .

[0025] As shown in Figure 1 , the horizontal machine tool tool holder multi-axis positioning method can include the following steps.

[0026] S110: horizontally placing the rotating seat 300, assembling the first positioning assembly 100 on the rotating seat 300, and making the first core shaft 110 in the first positioning assembly 100 in a vertical state.

[0027] In the embodiment of the present application, the rotary seat 300 is part of the tool holder assembly, which is assembled on the rotary support of the horizontal machine tool. When the angle of the tool holder assembly needs to be adjusted, the horizontal machine tool drives the rotary seat 300 to rotate through the rotary support, so as to realize the adjustment of the angle of the tool holder assembly. Specifically, the tool holder assembly includes the rotary seat 300 and the tool holder main shaft 400. The horizontal machine tool tool holder multi-axis positioning method of the embodiment is used for accurate positioning between the rotary seat 300 and the tool holder main shaft 400, so as to ensure the machining precision of the workpiece when the tool holder assembly is used on the horizontal machine tool subsequently. The mutual positioning between the rotary seat 300 and the tool holder main shaft 400 is performed before the tool holder assembly is installed on the horizontal machine tool.

[0028] Please refer to Figure 2 and Figure 3 Firstly, the rotary seat 300 is placed horizontally. Specifically, when the rotary seat 300 is machined, a certain upper side of the rotary seat 300 in the horizontal placement state can be formed into a horizontal plane through precision machining, and the horizontal plane is taken as the reference plane 320 to judge whether the rotary seat 300 is in a strict horizontal placement state. Specifically, the level can be detected by applying a torsion spring table to the reference plane 320.

[0029] After the rotary seat 300 is placed horizontally, the first positioning assembly 100 is assembled on the rotary seat 300, and the first core shaft 110 in the first positioning assembly 100 is in a vertical state. Since the level of the rotary seat 300 can be ensured, as long as the assembly precision between the first positioning assembly 100 and the rotary seat 300 is high, the verticality of the first core shaft 110 can be ensured to meet the standard.

[0030] S120: Place the tool holder main shaft 400 on the rotary seat 300, and screw the connecting screw 500 between the tool holder main shaft 400 and the rotary seat 300 to the first locking degree.

[0031] After the first positioning assembly 100 is assembled on the rotary seat 300, the tool holder main shaft 400 can be placed on the rotary seat 300. The tool holder main shaft 400 and the rotary seat 300 are connected through the connecting screw 500 (such as an internal hexagonal cylindrical head screw). The tool holder main shaft 400 and the rotary seat 300 both need to have corresponding screw holes. However, at this time, only the connecting screw 500 needs to be screwed to the first locking degree, that is, the connecting screw 500 is not directly screwed tightly. The first locking degree is appropriate rotation, which can ensure that the tool holder main shaft 400 will not easily fall off from the rotary seat 300. At this time, the tool holder main shaft 400 and the rotary seat 300 are not completely fastened to each other, which provides a degree of freedom for adjusting the position of the tool holder main shaft 400 relative to the rotary seat 300, and facilitates the subsequent positioning operation.

[0032] S130: Assemble the second positioning assembly 200 to the tool holder spindle 400, so that the second mandrel 210 in the second positioning assembly 200 is in a horizontal state.

[0033] After the tool holder spindle 400 is installed on the rotary seat by screwing the connecting screw 500 to the first locking degree (not fully tightened), the second positioning assembly 200 is assembled to the tool holder spindle 400, and the second mandrel 210 in the second positioning assembly 200 is in a horizontal state. The second positioning assembly 200 is precisely assembled to the tool holder spindle 400, so that the second mandrel 210 becomes an extension explicit component that can reflect the horizontal degree of the tool holder spindle 400. By positioning the second mandrel 210, the positioning of the tool holder spindle 400 is realized, which is more convenient for detecting the positioning accuracy and helps to improve the positioning accuracy of the tool holder spindle 400 on the rotary seat 300.

[0034] S140: Raise the first mandrel 110 and adjust the position of the tool holder spindle 400, so that the notch 111 at the upper end of the first mandrel 110 is inserted and matched with the second mandrel 210, so that the first mandrel 110 is orthogonal to the second mandrel 210.

[0035] After the second positioning assembly 200 is assembled to the tool holder spindle 400, the second mandrel 210 in the second positioning assembly 200 becomes an extension explicit component that reflects the horizontal degree of the tool holder spindle 400. Specifically, in some embodiments, the second mandrel 210 is preferably coaxially arranged with the central axis of the tool holder spindle 400, so that the central axis of the second mandrel 210 is the extension of the central axis of the tool holder spindle 400. The first positioning assembly 100 is assembled on the rotary seat 300, and the first mandrel 110 in the first positioning assembly 100 becomes a component that reflects the vertical degree of the central axis of the rotary seat 300. Specifically, in some embodiments, the central axis of the first mandrel 110 is preferably coaxially arranged with the rotary central axis 310 of the rotary seat 300, so that the central axis of the first mandrel 110 becomes the extension of the rotary central axis 310 of the rotary seat 300.

[0036] In this embodiment, the first mandrel 110 is raised and the position of the tool holder spindle 400 relative to the rotary seat 300 is adjusted, so that the notch 111 at the upper end of the first mandrel 110 can be inserted and matched with the second mandrel 210. Specifically, the notch 111 opens upward and penetrates along the horizontal extension direction of the second mandrel 210, so that the notch 111 is inserted into the second mandrel 210 from bottom to top, and at the same time, the second mandrel 210 horizontally passes through the notch 111. When adjusting the position of the tool holder spindle 400, the second mandrel 210 moves together with the tool holder spindle 400. When the second mandrel 210 can be completely inserted and matched (understood as coupled) with the notch 111 at the upper end of the first mandrel 110, it is considered that the mutual orthogonality of the first mandrel 110 and the second mandrel 210 is realized.

[0037] Since the central axis of the first core shaft 110 is essentially the extension of the rotation center axis 310 of the rotation seat 300, and the central axis of the second core shaft 210 is essentially the extension of the central axis of the tool holder spindle 400, when the first core shaft 110 and the second core shaft 210 are orthogonal, that is, the rotation center axis 310 of the rotation seat 300 and the central axis of the tool holder spindle 400 are orthogonal, the preliminary positioning of the tool holder spindle 400 on the rotation seat 300 is achieved.

[0038] S150: Screw the connecting screw 500 to a second locking degree, which is greater than the first locking degree.

[0039] Through S140, the preliminary positioning of the tool holder spindle 400 on the rotation seat 300 is achieved, and then the connecting screw 500 can be further screwed from the first locking degree to the second locking degree, which is greater than the first locking degree, but the second locking degree is not completely tightened. That is, the assembly fastening degree of the tool holder spindle 400 on the rotation seat 300 is improved to a certain extent, but the tool holder spindle 400 is not completely fastened on the rotation seat 300, and the tool holder spindle 400 can still be adjusted in position relative to the rotation seat 300, but its freedom is lower than that when the first locking degree is used, and the adjustable position range is smaller, so as to avoid destroying the preliminary positioning result of the obtained orthogonality.

[0040] S160: Adjust the position of the tool holder spindle 400 so that the end face of the second contact disc 220 in the second positioning assembly 200 abuts against the outer circular surface 112 of the slot 111, so that the actual distance between the rotation center axis 310 of the rotation seat 300 and the tool center 410 of the tool holder spindle 400 meets the design distance.

[0041] The position of the tool holder spindle 400 is adjusted until the second core shaft 210 and the slot 111 of the first core shaft 110 are completely inserted and matched, and the orthogonal positioning between the central axis of the tool holder spindle 400 and the rotation center axis 310 of the rotation seat 300 is achieved. Then, the position of the tool holder spindle 400 is further adjusted so that the end face of the second contact disc 220 in the second assembly abuts against the outer circular surface 112 of the slot 111. In the design stage, there is a design distance between the rotation center axis 310 of the rotation seat 300 and the tool center 410 of the tool holder spindle 400, and when the rotation seat 300 and the tool holder spindle 400 are assembled into a tool holder assembly, the actual distance between the rotation center axis 310 of the rotation seat 300 and the tool center 410 of the tool holder spindle 400 needs to meet the design distance.

[0042] In this embodiment, the outer circular surface 112 of the upper end slot 111 of the first core shaft 110 abuts against the end surface of the second connecting disc 220, and the sum of the radius of the outer circular surface 112 and the thickness of the second connecting disc 220 is the actual distance between the rotary center axis 310 of the rotary seat 300 and the tool center 410 of the tool holder spindle 400. When machining the outer circular surface 112 of the upper end slot 111 of the first core shaft 110 and the second connecting disc 220, the machining size of the radius of the outer circular surface 112 of the slot 111 and the machining size of the thickness of the second connecting disc 220 are determined according to the known design distance. Therefore, as long as the outer circular surface 112 of the slot 111 abuts against the end surface of the second connecting disc 220 in the positioning stage, the distance between the center axis of the first core shaft 110 and the tool center 410 of the tool holder spindle 400 is considered to be the design distance. Since the center axis of the first core shaft 110 is the extension of the rotary center axis 310 of the rotary seat 300, it is considered that the actual distance between the rotary center axis 310 of the rotary seat 300 and the tool center 410 of the tool holder spindle 400 meets the design distance, thereby achieving further positioning between the tool holder spindle 400 and the rotary seat 300.

[0043] S170: Screw the connecting screw 500 to a third locking degree, the third locking degree is greater than the second locking degree, and the third locking degree is completely tightened.

[0044] After the preliminary positioning and further positioning between the tool holder spindle 400 and the rotary seat 300 are achieved through S140 and S160, the mutual position between the tool holder spindle 400 and the rotary seat 300 is accurately positioned. Then the connecting screw 500 is screwed to a third locking degree, the third locking degree is greater than the second locking degree, and the third locking degree is completely tightened. The connecting screw 500 is completely tightened, so that the tool holder spindle 400 is completely tightly assembled on the rotary seat 300, and the accurate positional relationship between the tool holder spindle 400 and the rotary seat 300 is maintained through the connecting screw 500, which can effectively improve the machining precision of the workpiece during use.

[0045] S180: Disassemble the first positioning assembly 100 and the second positioning assembly 200.

[0046] After the connecting screw 500 is completely tightened in S170, the tool holder spindle 400 is completely tightly assembled on the rotary seat 300, and the tool holder spindle 400 and the rotary seat 300 form a complete tool holder assembly. At this time, the tool holder assembly meets the two accuracy requirements that the rotary center axis 310 of the rotary seat 300 and the center axis of the tool holder spindle 400 are perpendicular to each other, and the actual distance between the rotary center axis 310 of the rotary seat 300 and the tool center 410 of the tool holder spindle 400 meets the design distance. The tool holder assembly can be subsequently installed on a horizontal machine tool for use and machining of workpieces.

[0047] Therefore, after the complete tool holder assembly is formed, the first positioning assembly 100 and the second positioning assembly 200 need to be detached from the tool holder assembly, and after the detachment is completed, the tool holder assembly is installed on the horizontal machine tool for use.

[0048] Therefore, in the embodiment of the present application, the first positioning assembly 100 is assembled on the rotary seat 300, the second positioning assembly 200 is assembled on the tool holder spindle 400, the first mandrel 110 in the first positioning assembly 100 is extended as the rotary center of the rotary seat 300, the second mandrel 210 in the second positioning assembly 200 is extended as the center of the tool holder spindle 400, the cooperation (understood as coupling) between the first mandrel 110 and the second mandrel 210 satisfies the two accuracy requirements that the rotary center axis 310 of the rotary seat 300 and the center axis of the tool holder spindle 400 are perpendicular to each other and the actual distance between the rotary center axis 310 of the rotary seat 300 and the tool center 410 of the tool holder spindle 400 satisfies the design distance, the accurate positioning between the tool holder spindle 400 and the rotary seat 300 is realized, and the machining accuracy of the workpiece is improved.

[0049] Preferably, S110 can specifically include: elevating the rotary seat 300 by a support, the first positioning assembly 100 including a first disc 120, a first mandrel 110 and a sleeve 130, assembling the first disc 120 at the lower part of the rotary seat 300, assembling the sleeve 130 at the upper part of the rotary seat 300, and inserting the first mandrel 110 into the through holes of the sleeve 130 and the first disc 120, so that the central axis of the first mandrel 110 is coaxial with the rotary center axis 310 of the rotary seat 300.

[0050] In the embodiment of the present application, the state that the rotary seat 300 is horizontally placed is maintained by the support, and the support elevates the rotary seat 300 so that the lower side of the rotary seat 300 is suspended, facilitating the assembly of the first positioning assembly 100. Specifically, a wooden block can be placed under the rotary seat 300. In the embodiment, the first positioning assembly 100 includes a first disc 120, a first mandrel 110 and a sleeve 130. Specifically, the first disc 120 is assembled from bottom to top at the lower part of the rotary seat 300, the sleeve 130 is assembled from top to bottom at the upper part of the rotary seat 300, the first disc 120 and the sleeve 130 both have through holes coaxial with the rotary center axis 310 of the rotary seat 300, and then the first mandrel 110 is inserted into the through holes of the first disc 120 and the sleeve 130, so that the central axis of the first mandrel 110 is coaxial with the rotary center axis 310 of the rotary seat 300, and the first mandrel 110 becomes the extension of the rotary center of the rotary seat 300. The positioning of the first mandrel 110 realizes the positioning of the rotary center position of the rotary seat 300, which is convenient to operate, more explicit, and can effectively improve the positioning accuracy.

[0051] Further, S110 can further specifically include: adjusting the position of the shaft sleeve 130 to enable the first mandrel 110 to rotate relative to the shaft sleeve 130, and then locking the shaft sleeve 130.

[0052] In the embodiment of the present application, when the shaft sleeve 130 is assembled on the upper part of the rotary seat 300, the screws on the shaft sleeve 130 can be not fully tightened, the first mandrel 110 is inserted into the through hole of the shaft sleeve 130, and then the position of the shaft sleeve 130 is adjusted so that the first mandrel 110 can easily and flexibly rotate relative to the shaft sleeve 130. It is proved that the shaft sleeve 130 has been adjusted to the coaxial state with the first mandrel 110, and there is no obvious relative friction on one side due to the too close distance with the first mandrel 110. At this time, it can be ensured that the shaft sleeve 130 and the first mandrel 110 are coaxial with the rotary center axis 310 of the rotary seat 300, thereby ensuring the position accuracy of the first mandrel 110 on the rotary seat 300 and improving the subsequent positioning accuracy.

[0053] Preferably, S130 can specifically include: the second positioning assembly 200 includes a second disc 220 and a second mandrel 210 which are coaxial and fixedly connected with each other, the second disc 220 is assembled on the tool holder spindle 400 and coaxial with the tool holder spindle 400, and the second mandrel 210 is in a horizontal state and located above the first mandrel 110.

[0054] In the embodiment of the present application, the tool holder spindle 400 is set on the rotary seat 300 through S120, but the connecting screw 500 is not fully tightened, and the position of the tool holder spindle 400 relative to the rotary seat 300 can be adjusted. Specifically, in S130, the second positioning assembly 200 includes a second disc 220 and a second mandrel 210 which are coaxial and fixedly connected with each other. In order to ensure accuracy, the second disc 220 and the second mandrel 210 can be preferably integrally formed, and then the second disc 220 is assembled on the tool holder spindle 400 and coaxially arranged with the tool holder spindle 400. At this time, the second mandrel 210 is in a horizontal state and located above the first mandrel 110. The second mandrel 210 is also coaxial with the tool holder spindle 400, so the second mandrel 210 becomes the extension of the central part of the tool holder spindle 400. The positioning of the second mandrel 210 can realize the positioning of the tool holder spindle 400, which is convenient to operate and more explicit, and can effectively improve the positioning accuracy.

[0055] Preferably, please refer to Figure 4, S140 can specifically include: taking a standard push block on which a torsion spring gauge is arranged and pointing to a detection surface of the second mandrel 210 on the side facing the reference plane 320 as a reference plane 320 of an upper side of the rotary seat 300, horizontally moving the standard push block on the reference plane 320 to detect parallelism between the second mandrel 210 and the reference plane 320 through the torsion spring gauge, and adjusting the position of the tool holder spindle 400 until the parallelism is up to standard.

[0056] In S140, the first mandrel 110 is lifted and the position of the tool holder spindle 400 is adjusted so that the notch 111 at the upper end of the first mandrel 110 is in plug-in cooperation with the second mandrel 210. The shape of the notch 111 has been described above, and when the plug-in cooperation is complete, it is considered that the first mandrel 110 is orthogonal to the second mandrel 210, and the orthogonal relationship between the rotary center axis 310 of the rotary seat 300 and the central axis of the tool holder spindle 400 is achieved.

[0057] In the embodiment, whether the first mandrel 110 and the second mandrel 210 are completely orthogonal is preferably achieved by detecting parallelism. Specifically, an upper side of the rotary seat 300 at a certain position is precisely machined into a reference plane 320 during the machining stage, a standard push block on which a torsion spring gauge is arranged is placed on the reference plane 320, the side of the second mandrel 210 facing the reference plane 320 (i.e. downward) is taken as a detection surface, the torsion spring gauge points to the detection surface of the second mandrel 210, and then the standard push block is horizontally moved on the reference plane 320 so that the torsion spring gauge detects the parallelism between the second mandrel 210 and the reference plane 320. During this process, the position of the tool holder spindle 400 can be adjusted according to the detection result of the torsion spring gauge until the parallelism detected by the torsion spring gauge is up to standard, and then the adjustment of the position of the tool holder spindle 400 is stopped, and it is considered that the first mandrel 110 and the second mandrel 210 have achieved complete mutual orthogonality.

[0058] Preferably, S160 can specifically include: determining the radius machining size of the outer circular surface 112 of the notch 111 and the thickness machining size of the second adapter 220 based on the design distance, and making the sum of the radius machining size of the outer circular surface 112 of the notch 111 and the thickness machining size of the second adapter 220 equal to the design distance.

[0059] In the design stage, a design distance between the rotary center axis 310 of the rotary seat 300 and the tool center 410 of the tool holder spindle 400 is obtained, and then the radius machining size of the outer circular surface 112 of the notch 111 and the thickness machining size of the second adapter 220 are determined based on the design distance, so that the sum of the radius machining size of the outer circular surface 112 of the notch 111 and the thickness machining size of the second adapter 220 is equal to the design distance. In this way, when positioning, only the outer circular surface 112 of the notch 111 is tightly abutted against the end surface of the second adapter 220, the actual distance between the center axis of the first core shaft 110 and the tool center 410 of the tool holder spindle 400 can meet the design distance. Since the center axis of the first core shaft 110 is the extension of the rotary center axis 310 of the rotary seat 300, it is considered that the actual distance between the rotary center axis 310 of the rotary seat 300 and the tool center 410 of the tool holder spindle 400 meets the design distance at this time, thereby realizing further positioning between the rotary seat 300 and the tool holder spindle 400.

[0060] Preferably, S170 can specifically include: pushing the standard push block to move horizontally on the reference plane 320 again, checking the parallelism of the second core shaft 210 and the reference plane 320 by the torsion spring table, and the parallelism meets the standard to screw the connecting bolt to the third locking degree.

[0061] After the preliminary positioning and further positioning between the tool holder spindle 400 and the rotary seat 300 are realized by S140 and S160, the mutual position between the tool holder spindle 400 and the rotary seat 300 is accurately positioned. Therefore, in S170, the connecting screw 500 can be screwed to the third locking degree, the third locking degree is greater than the second locking degree, and the third locking degree is completely tightened, thereby completely fastening the tool holder spindle 400 on the rotary seat 300.

[0062] However, in the process of adjusting the position of the tool holder spindle 400 to tightly abut the second adapter 220 and the outer circular surface 112 of the notch 111, the achievement of the mutual orthogonality of the first core shaft 110 and the second core shaft 210 realized in the early stage may be affected. Therefore, preferably, before the connecting screw 500 is screwed to the third locking degree, the standard push block is pushed to move horizontally on the reference plane 320 again, and the parallelism of the second core shaft 210 and the reference plane 320 is checked by the torsion spring table. If the parallelism meets the standard, the detection is ended, and then the connecting screw 500 is completely tightened; if the parallelism does not meet the standard, the position of the tool holder spindle 400 is adjusted again until the parallelism meets the standard, and whether the outer circular surface 112 of the notch 111 is tightly abutted against the end surface of the second adapter 220 is checked. When both indicators meet the standard, the connecting screw 500 is completely tightened.

[0063] In the embodiment of the present application, the tool holder spindle 400 and the rotary seat 300 are completely assembled together to form a complete tool holder assembly, the first positioning assembly 100 and the second positioning assembly 200 play the role of mutual accurate positioning in the assembly process of the tool holder spindle 400 and the rotary seat 300, when the tool holder assembly is assembled, the first positioning assembly 100 and the second positioning assembly 200 need to be disassembled, and then the tool holder assembly is assembled to the horizontal machine tool for use. The tool holder assembly also needs to be positioned between the horizontal machine tools to ensure the machining precision in the subsequent machining process.

[0064] Therefore, please refer to Figure 5 , preferably, the horizontal machine tool tool holder multi-axis positioning method of the embodiment of the present application can also include: the tool holder spindle 400 and the rotary seat 300 are fixedly connected to form a tool holder assembly, the tool holder assembly is assembled to the rotary support of the horizontal machine tool through the rotary seat 300; the shaft sleeve 130 is assembled to the rotary seat 300, the first mandrel 110 is inserted into the through hole of the shaft sleeve 130; the torsion spring table acts on the first mandrel 110, the horizontal machine tool is started to drive the rotary support to rotate, and the coaxiality of the first mandrel 110 and the rotary support is detected by the torsion spring table; the position of the tool holder assembly on the rotary support is adjusted until the coaxiality meets the standard.

[0065] Specifically, when the tool holder assembly is assembled to the horizontal machine tool, the rotary seat 300 changes from a horizontal placement state to a vertical state, and the tool holder assembly is installed to the rotary support of the horizontal machine tool through the rotary seat 300. During the use of the horizontal machine tool, when the angle of the tool holder assembly needs to be adjusted, the tool holder assembly is rotated by a certain angle through the rotary support.

[0066] After the tool holder assembly is assembled to the rotary support of the horizontal machine tool through the rotary seat 300, the shaft sleeve 130 is reassembled to the rotary seat 300 (at the same original assembly position), the first mandrel 110 is reinserted into the through hole of the shaft sleeve 130, and the torsion spring table acts on the first mandrel 110. Then the horizontal machine tool is started to drive the rotary support to rotate, and the coaxiality between the first mandrel 110 and the rotary support is detected by the torsion spring table. If the coaxiality does not meet the standard, the screw connecting the rotary seat 300 and the rotary support is loosened, the position of the tool holder assembly on the rotary support is adjusted, the screw is tightened again, the horizontal machine tool is started again to drive the tool holder assembly to rotate, and the coaxiality of the first mandrel 110 and the rotary support is detected by the torsion spring table again. The above operation can be repeatedly performed until the coaxiality meets the standard, and the machining precision of the tool holder assembly on the workpiece is improved.

[0067] Further, the horizontal machine tool tool rest multi-axis positioning method of the embodiment of the application can further include, after the coaxiality of the first mandrel 110 and the rotating support is detected: the horizontal machine tool includes a column 610, and the rotating support is arranged on the column 610; the horizontal machine tool is started to drive the column 610 to move horizontally, and the parallelism of the first mandrel 110 and a bed body 620 is detected by the torsion spring table.

[0068] The torsion spring table still acts on the first mandrel 110, the horizontal machine tool is started to drive the column 610 to move horizontally relative to the bed body 620, and the parallelism between the first mandrel 110 and the bed body 620 is detected by the torsion spring table in the process, so as to ensure the machining precision of the subsequent tool rest assembly on the workpiece in the use process.

[0069] Please refer to Figure 2 which shows a schematic diagram of a horizontal machine tool tool rest multi-axis positioning device provided by the embodiment of the application.

[0070] As shown in Figure 2 , the horizontal machine tool tool rest multi-axis positioning device of the embodiment of the application can include: a first positioning assembly 100 for connecting a rotating seat 300, including a first connecting disc 120, a shaft sleeve 130 and a first mandrel 110; a second positioning assembly 200 for connecting a tool rest spindle 400, including a second connecting disc 220 and a second mandrel 210; The rotating seat 300 is horizontally placed, and the tool rest spindle 400 is placed on the rotating seat 300 and connected through a connecting screw 500. The first connecting disc 120 is used to be assembled from bottom to top on the lower part of the rotating seat 300, the shaft sleeve 130 is used to be assembled from top to bottom on the upper part of the rotating seat 300, and the first mandrel 110 is inserted into the through hole of the shaft sleeve 130 and the first connecting disc 120, so that the first mandrel 110 is in a vertical state; The second mandrel 210 is coaxially arranged with and fixedly connected to the second connecting disc 220, and the second connecting disc 220 is assembled on the tool rest spindle 400, so that the second mandrel 210 is in a horizontal state and located above the first mandrel 110; The first mandrel 110 is provided with a notch 111 at the upper end, and the first mandrel 110 can move upward relative to the shaft sleeve 130, so that the notch 111 is inserted and matched with the second mandrel 210, so that the first mandrel 110 and the second mandrel 210 are orthogonal to each other; The outer circular surface 112 of the notch 111 abuts against the end surface of the second connecting disc 220, so that the actual distance between the rotating center axis 310 of the rotating seat 300 and the tool center 410 of the tool rest spindle 400 satisfies the design distance.

[0071] The horizontal machine tool tool rest multi-axis positioning device provided by the embodiment of the present application can position the tool rest main shaft 400 and the rotary seat 300 in the tool rest assembly by using the horizontal machine tool tool rest multi-axis positioning method, and can also position the tool rest assembly on the horizontal machine tool, thereby effectively improving the machining precision of the tool rest assembly on the workpiece.

[0072] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for multi-axis positioning of a horizontal machine tool tool post, characterized in that, include: The rotary seat is placed horizontally, and the first positioning component is assembled onto the rotary seat so that the first spindle in the first positioning component is in a vertical state. Place the tool post spindle on the rotary seat, and tighten the connecting screw between the tool post spindle and the rotary seat to the first locking degree; The second positioning component is assembled onto the tool holder spindle, so that the second spindle in the second positioning component is in a horizontal state; Raise the first mandrel and adjust the position of the tool post spindle so that the slot at the upper end of the first mandrel can be inserted into the second mandrel so that the first mandrel and the second mandrel are orthogonal. Tighten the connecting screw to a second tightening level, which is greater than the first tightening level; Adjust the position of the tool holder spindle so that the end face of the second receiving plate in the second positioning assembly abuts against the outer circular surface of the slot, so that the actual distance between the rotation center axis of the rotary seat and the tool center of the tool holder spindle meets the design distance; Tighten the connecting screw to a third tightening level, which is greater than the second tightening level, and the third tightening level is a complete tightening; Disassemble the first positioning component and the second positioning component.

2. The method for multi-axis positioning of a horizontal machine tool tool post according to claim 1, characterized in that, The rotary seat is placed horizontally, and the first positioning component is assembled onto the rotary seat, so that the first spindle in the first positioning component is in a vertical state, including: The rotary seat is raised by a support member. The first positioning component includes a first receiving plate, a first mandrel, and a bushing. The first receiving plate is assembled on the lower part of the rotary seat, and the bushing is assembled on the upper part of the rotary seat. The first mandrel is inserted into the through hole of the bushing and the first receiving plate, so that the central axis of the first mandrel is coaxial with the rotation center axis of the rotary seat.

3. The method for multi-axis positioning of a horizontal machine tool tool post according to claim 2, characterized in that, The step of inserting the first mandrel into the through hole of the bushing and the first receiving plate, so that the central axis of the first mandrel is coaxial with the rotation center axis of the rotary seat, includes: Adjust the position of the bushing so that the first mandrel can rotate relative to the bushing, and then lock the bushing.

4. The method for multi-axis positioning of a horizontal machine tool tool post according to claim 1, characterized in that, The step of assembling the second positioning component onto the tool post spindle, so that the second spindle in the second positioning component is in a horizontal state, includes: The second positioning component includes a second receiving plate and a second mandrel that are coaxial and fixedly connected to each other. The second receiving plate is assembled on the tool post spindle and is coaxial with the tool post spindle. The second mandrel is horizontal and located above the first mandrel.

5. The method for multi-axis positioning of a horizontal machine tool tool post according to claim 1, characterized in that, The step of raising the first mandrel and adjusting the position of the tool post spindle so that the slot at the upper end of the first mandrel engages with the second mandrel to make the first mandrel and the second mandrel orthogonal includes: Using one upper side of the rotary table as a reference plane, a standard push block is placed on the reference plane. The standard push block is equipped with a torsion spring gauge, which points to the detection surface of the second spindle facing the reference plane. The standard push block is pushed to move horizontally on the reference plane so as to detect the parallelism between the second spindle and the reference plane through the torsion spring gauge. The position of the tool post spindle is adjusted until the parallelism meets the standard.

6. The method for multi-axis positioning of a horizontal machine tool tool post according to claim 1, characterized in that, The step of adjusting the position of the tool post spindle so that the end face of the second receiving plate in the second positioning assembly abuts against the outer circular surface of the slot, so that the actual distance between the rotation center axis of the rotary seat and the tool center of the tool post spindle meets the design distance, includes: Based on the design distance, determine the radius machining dimension of the outer circular surface of the slot and the thickness machining dimension of the second receiving plate, so that the sum of the radius machining dimension of the outer circular surface of the slot and the thickness machining dimension of the second receiving plate is equal to the design distance.

7. A method for multi-axis positioning of a horizontal machine tool tool post according to claim 1, characterized in that, The step of tightening the connecting screw to a third tightening level, which is greater than the second tightening level and is a complete tightening, includes: Push the standard push block horizontally on the reference plane again, and check the parallelism between the second mandrel and the reference plane using the torsion spring gauge. If the parallelism meets the standard, tighten the connecting bolt to the third locking degree.

8. A multi-axis positioning method for a horizontal machine tool tool post according to claim 1, characterized in that, Also includes: The tool post spindle and the rotary seat are fixedly connected to form a tool post assembly, and the tool post assembly is assembled onto the rotary support of the bedroom machine tool through the rotary seat; The bushing is fitted onto the rotary seat, and the first mandrel is inserted into the through hole of the bushing; The torsion spring gauge is applied to the first mandrel, and the horizontal machine tool is started to drive the rotating support to rotate. The coaxiality between the first mandrel and the rotating support is detected by the torsion spring gauge. Adjust the position of the tool holder assembly on the rotating support until the coaxiality meets the standard.

9. A multi-axis positioning method for a horizontal machine tool tool post according to claim 8, characterized in that, Also includes: The horizontal machine tool includes a column, and the rotary support is disposed on the column; Start the horizontal machine tool to move the column horizontally, and use the torsion spring gauge to detect the parallelism between the first mandrel and the machine bed.

10. A multi-axis positioning device for a horizontal machine tool tool post, characterized in that, include: The first positioning component is used to connect the rotary seat, including a first receiving plate, a bushing and a first spindle; The second positioning component is used to connect the tool holder spindle, including a second receiving plate and a second spindle; The rotary seat is placed horizontally, and the tool post spindle is placed on the rotary seat and connected by connecting screws; The first receiving plate is used to assemble the lower part of the rotary seat from bottom to top, and the bushing is used to assemble the upper part of the rotary seat from top to bottom. The first mandrel is inserted into the through hole of the bushing and the first receiving plate so that the first mandrel is in a vertical state. The second mandrel is coaxially arranged and fixedly connected to the second receiving plate. The second receiving plate is assembled on the tool holder spindle so that the second mandrel is horizontal and located above the first mandrel. The first mandrel has a slot at its upper end, and the first mandrel can move upward relative to the bushing so that the slot can be inserted into the second mandrel so that the first mandrel and the second mandrel are orthogonal to each other. The outer circular surface of the slot abuts against the end face of the second receiving plate so that the actual distance between the rotation center axis of the rotary seat and the tool center of the tool holder spindle meets the design distance.

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