Numerical control milling machine capable of machining five surfaces of workpiece simultaneously

Abstract

The application provides a numerical control milling machine capable of machining five surfaces of a workpiece simultaneously, relates to the field of milling machines for multi-surface machining, and comprises a frame body, a vertical machining assembly, a horizontal machining assembly and a clamping table. The application is based on the improvement of the existing horizontal and vertical numerical control milling machines, and the clamping table is added. The clamping table comprises a linear moving table assembly along the spindle axis direction of the horizontal machining assembly, a rotating table and a conversion clamp, and the moving mechanism in the Y direction of the horizontal machining assembly is simplified. The numerical control milling of the five surfaces of the workpiece can be completed simultaneously, the multiple clamping process is simplified, the machining efficiency is improved, the shape and position tolerances of the surfaces of the workpiece can be well ensured, and the precision of the workpiece machining is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of multi-surface machining milling machine, in particular to a numerical control milling machine capable of machining five surfaces of a workpiece at the same time. BACKGROUND

[0002] The numerical control milling machine is a kind of high-precision and high-efficiency automatic machine tool, mainly used for milling of metal or other hard materials, and can realize machining of complex shapes. The numerical control milling machine has multi-axis linkage function and can perform plane, curved surface and three-dimensional machining, and is widely used in the fields of mold manufacturing, aerospace, automobile manufacturing, etc.

[0003] Horizontal numerical control milling machine and vertical numerical control milling machine are two main layout forms of numerical control milling machine, and the main difference between them is the layout of the main shaft. The main shaft axis of the horizontal numerical control milling machine is parallel to the horizontal plane, which is suitable for milling of vertical surface. The main shaft axis of the vertical numerical control milling machine is perpendicular to the horizontal plane, which is suitable for milling of plane. When multi-surface machining is performed, especially for workpieces that need to be milled on five surfaces, the workpiece needs to be clamped multiple times to complete the machining, which not only makes the machining steps complex and the machining efficiency low, but also causes the machining precision of the workpiece to be difficult to guarantee due to different reference planes caused by multiple clamping. Therefore, the present application provides a numerical control milling machine capable of machining five surfaces of a workpiece at the same time. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a numerical control milling machine capable of machining five surfaces of a workpiece at the same time, which solves the problems that the existing milling machine needs to clamp the workpiece multiple times to complete the machining when multi-surface machining is performed, especially for workpieces that need to be milled on five surfaces, which not only makes the machining steps complex and the machining efficiency low, but also causes the machining precision of the workpiece to be difficult to guarantee due to different reference planes caused by multiple clamping.

[0005] To achieve the above purpose, the present application is implemented by the following technical solutions:

[0006] A numerical control milling machine capable of machining five surfaces of a workpiece at the same time, comprising a frame body, a vertical machining assembly, a horizontal machining assembly and a clamping table, the clamping table is fixedly installed on the top of the frame body, the vertical machining assembly and the horizontal machining assembly are fixedly installed with the frame body, and the vertical machining assembly is located above the clamping table, and the horizontal machining assembly is located on one side of the clamping table. The clamping table comprises a linear moving table assembly along the main shaft axis direction of the horizontal machining assembly, a rotating table and a conversion clamp. The rotating table is installed on the action end of the linear moving table assembly, and the conversion clamp is installed on the action end of the rotating table.

[0007] The vertical machining assembly comprises a portal, an X1 moving mechanism, a Y1 moving mechanism, a Z1 moving mechanism and a vertical main shaft.

[0008] The horizontal machining assembly comprises an X2 moving mechanism, a Z2 moving mechanism and a horizontal spindle.

[0009] Preferably, the linear moving table assembly comprises:

[0010] A base is fixedly installed on the top of the frame body.

[0011] A guide rod is fixedly connected with the base along the length direction of the base.

[0012] A screw rod is rotatably installed on the base along the length direction of the base.

[0013] A servo motor is fixedly installed on the base, and the output end of the servo motor is in transmission connection with the screw rod.

[0014] A base plate is in sliding fit with the guide rod, and the bottom of the base plate is fixedly provided with a sliding block matched with the screw rod.

[0015] Preferably, the rotating table comprises:

[0016] A housing is fixedly installed on the base plate.

[0017] A support shaft is located in the interior of the housing, and the bottom end of the support shaft is in rotary connection with the base plate.

[0018] A driving assembly is installed on the housing, and the driving assembly is used to drive the support shaft to rotate.

[0019] A table plate is fixedly installed with a bottom cover disc at the bottom through bolts, the inner side of the bottom cover disc is provided with a pulling slot, a fastening block is arranged in the pulling slot, the two ends of the fastening block are respectively provided with a first inclined surface and a second inclined surface, the top of the support shaft is provided with a matching groove matched with the end of the fastening block, and the matching groove comprises a key groove and an inclined groove located at the inner side of the key groove.

[0020] An extrusion screw is threadedly installed at the bottom of the bottom cover disc, the end of the extrusion screw is located in the interior of the pulling slot, and the end of the extrusion screw is upwardly abutted against the second inclined surface of the fastening block.

[0021] Preferably, the driving assembly comprises:

[0022] A first shaft body is rotatably installed with the housing, and the first shaft body is arranged in parallel with the support shaft.

[0023] The first shaft body is fixedly installed with a second gear and a worm gear, the support shaft is fixedly installed with a first gear, the first gear is in engagement with the second gear, the outer side of the housing is fixedly installed with a rotating motor, the output end of the rotating motor is fixedly installed with a worm, and the worm is matched with the worm gear.

[0024] Preferably, the conversion fixture comprises:

[0025] A bottom shell is fixedly installed with the table plate through a mounting piece, and a top flange of the bottom shell is fixedly installed with a buckle cover;

[0026] A central gear is fixedly connected with a ring-shaped support portion at the bottom, the bottom end of the ring-shaped support portion is rotatably installed with the inner bottom portion of the bottom shell, and the top of the central gear is fixedly connected with an externally threaded cylinder;

[0027] A second lifting sleeve is threadedly matched with the externally threaded cylinder, and the outer side of the second lifting sleeve is slidably matched with the buckle cover;

[0028] A clamping disc body is fixedly installed with the top end flange of the second lifting sleeve, the clamping disc body is annular, and a reverse taper opening is arranged on the inner side of the clamping disc body and close to the top end position, and a plurality of gap openings are formed in the side surface of the clamping disc body;

[0029] A sliding sleeve is fixedly installed with the inner bottom portion of the bottom shell at the bottom end, and the top end of the sliding sleeve is inwardly contracted;

[0030] A lifting rod is slidably matched with the sliding sleeve, and a limiting end is arranged at the bottom end of the lifting rod;

[0031] A reverse taper disc is arranged inside the reverse taper opening, and the bottom end of the reverse taper disc is fixedly installed with the top end of the lifting rod;

[0032] A third shaft body is rotatably installed with the inner bottom portion of the bottom shell at the bottom end, and a third gear is fixedly installed on the outer side of the third shaft body, and the third gear is engaged with the central gear;

[0033] A first lifting sleeve is threadedly matched with the third shaft body, and the outer side of the first lifting sleeve is slidably matched with the buckle cover, an L-shaped support is fixedly installed at the top end of the first lifting sleeve, and a pneumatic clamping piece is installed on the top portion of the L-shaped support;

[0034] A fourth shaft body is rotatably connected with the bottom shell at the bottom end, a fourth gear is fixedly installed on the outer side of the fourth shaft body, the fourth gear is engaged with the central gear, and a hand wheel is fixedly installed at the top end of the fourth shaft body.

[0035] Preferably, a dustproof cover is fixedly installed at the top end of the clamping disc body, and an anti-collision gasket is arranged at the bottom portion of the dustproof cover.

[0036] Preferably, the third shaft body, the third gear, the first lifting sleeve, the L-shaped support and the pneumatic clamping piece are symmetrically arranged with two groups.

[0037] Preferably, the fourth shaft body is distributed at 90° with respect to the center of the bottom shell.

[0038] Preferably, the gantry is fixedly installed with the frame body, the X1 moving mechanism is fixedly installed at the top of the gantry, the Y1 moving mechanism is installed at the action end of the X1 moving mechanism, the Z1 moving mechanism is installed at the action end of the Y1 moving mechanism, and the vertical main shaft part is installed at the action end of the Z1 moving mechanism.

[0039] Preferably, the X2 moving mechanism is fixedly installed with the frame body, the Z2 moving mechanism is fixedly installed at the action end of the X2 moving mechanism, and the horizontal main shaft part is installed at the action end of the Z2 moving mechanism.

[0040] The present application provides a numerical control milling machine capable of machining five surfaces of a workpiece simultaneously.

[0041] 1. The present application is based on the improvement of the existing horizontal and vertical numerical control milling machines, and the clamping table is added, which comprises a linear moving table assembly along the main shaft axis direction of the horizontal machining assembly, a rotating table and a conversion clamp, and the moving mechanism of the Y direction of the horizontal machining assembly is simplified, so that the numerical control milling of the five surfaces of the workpiece can be completed simultaneously (here, it refers to the positioning and clamping of five surfaces at one time), the multiple clamping process is simplified, the machining efficiency is improved, and the shape and position tolerances of the workpiece are well guaranteed, and the workpiece machining precision is improved.

[0042] 2. The present application is designed by the structure of the conversion clamp, which includes two clamping modes, the first clamping mode can quickly clamp the workpiece and process the mounting circular groove, and then the second clamping mode is adopted to clamp in the form of reverse buckling and internal support, so that the structure of the side surface of the workpiece which is not clamped is not blocked, and the milling machining of four surfaces and the top surface can be carried out, thereby achieving the purpose of one-time clamping and five-surface machining. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 It is a perspective view of the numerical control milling machine capable of machining five surfaces of a workpiece simultaneously according to the present application;

[0044] Figure 2 It is a front view of the numerical control milling machine capable of machining five surfaces of a workpiece simultaneously according to the present application;

[0045] Figure 3 It is a side view of the numerical control milling machine capable of machining five surfaces of a workpiece simultaneously according to the present application;

[0046] Figure 4 It is a top view of the numerical control milling machine capable of machining five surfaces of a workpiece simultaneously according to the present application;

[0047] Figure 5A perspective view of the clamping table of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0048] Figure 6 A perspective view of the linear moving table assembly of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0049] Figure 7 A front view of the rotating table of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0050] Figure 8 A sectional view of the rotating table of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0051] Figure 9 A perspective view of the rotating table of the five-surface simultaneous machining numerical control milling machine proposed in the present application; Figure 8 A partial enlarged view of A in the figure;

[0052] Figure 10 A perspective view of the rotating table of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0053] Figure 11 A perspective view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0054] Figure 12 A front view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0055] Figure 13 A top view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0056] Figure 14 A perspective view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application; Figure 13 A sectional view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0057] Figure 15 A perspective view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application; Figure 13 A sectional view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0058] Figure 16 A perspective view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0059] Figure 17 A perspective view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0060] Figure 18 A perspective view of the conversion fixture of the five-surface simultaneous machining numerical control milling machine proposed in the present application;

[0061] 1, frame body; 2, vertical machining assembly; 201, portal frame; 202, X1 moving mechanism; 203, Y1 moving mechanism; 204, Z1 moving mechanism; 205, vertical main shaft; 3, horizontal machining assembly; 301, X2 moving mechanism; 302, Z2 moving mechanism; 303, horizontal main shaft; 4, clamping table; 401, linear moving table assembly; 401a, bottom support; 401b, guide rod; 401c, screw; 401d, servo motor; 401e, bottom plate; 402, rotary table; 402a, housing; 402b, support shaft; 402c, matching groove; 402c1, key slot; 402c2, inclined slot; 402d, fastening block; 402da, first inclined surface; 402db, second inclined surface; 402e, bottom cover disc; 402f, pull-out slot; 402g, extrusion screw; 402h, table plate; 402i, rotary motor; 402j, first gear; 402k, first shaft body; 402l, second gear; 402m, worm wheel; 402n, worm; 403, conversion clamp; 403a, bottom shell; 403b, mounting piece; 403c, buckle cover; 403d, central gear; 403e, annular support part; 403f, third shaft body; 403g, third gear; 403h, first lifting sleeve; 403i, L-shaped support; 403j, pneumatic clamping piece; 403k, externally threaded cylinder body; 403l, second lifting sleeve; 403m, clamping disc body; 403ma, inverted taper opening; 403n, gap opening; 403o, sliding sleeve; 403p, lifting rod; 403q, inverted taper disc; 403r, dustproof cover; 403s, fourth shaft body; 403t, fourth gear; 403x, hand wheel; a, workpiece; a1, mounting circular groove. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0063] Embodiment one:

[0064] As Figure 1 - Figure 18As shown, the embodiment of the present application provides a numerical control milling machine capable of machining five surfaces of a workpiece simultaneously, which comprises a frame body 1, a vertical machining assembly 2, a horizontal machining assembly 3 and a clamping table 4, the clamping table 4 is used for clamping the workpiece a, the vertical machining assembly 2 is used for milling the top surface of the workpiece a, and the horizontal machining assembly 3 is used for milling the side surface of the workpiece a; in order to realize the machining of the five surfaces of the workpiece a, in the present scheme, the clamping table 4 is fixedly installed on the top of the frame body 1, the top end of the frame body 1 is designed as a containing cavity for containing cutting fluid, there are multiple frame structures with stable structures on the top of the frame body 1, the clamping table 4 is fixedly installed with the frame structures, the vertical machining assembly 2 and the horizontal machining assembly 3 are fixedly installed with the frame body 1, the vertical machining assembly 2 is located above the clamping table 4, the horizontal machining assembly 3 is located on one side of the clamping table 4, the clamping table 4 comprises a linear moving table assembly 401 along the spindle axis direction of the horizontal machining assembly 3, a rotating table 402 and a conversion clamp 403, the rotating table 402 is installed on the action end of the linear moving table assembly 401, the conversion clamp 403 is installed on the action end of the rotating table 402, the conversion clamp 403 is used for clamping and fixing the workpiece a, and the rotating table 402 can drive the conversion clamp 403 to rotate so that one surface of the workpiece a faces the horizontal machining assembly 3; under certain control and adjustment, the rotating table 402 can complete the milling machining of the four side surfaces of the workpiece in cooperation with the horizontal machining assembly 3, and the linear moving table assembly 401 can control the rotating table 402 and the conversion clamp 403 to move between the machining position and the clamping position, so as to facilitate the user to clamp and unclamp the workpiece a at the clamping position and move the workpiece a to the machining position for machining, and the operation is safer.

[0065] Specifically, the vertical machining assembly 2 comprises a portal 201, an X1 moving mechanism 202, a Y1 moving mechanism 203, a Z1 moving mechanism 204 and a vertical spindle 205, the four-axis drive can realize the movement in three directions in the space and the rotation of the cutter driven by the vertical spindle 205, so as to realize the milling machining; the vertical machining assembly 2 with the four-axis structure is a common structure of the current vertical milling machine, which is selected and used in the field, and will not be described in detail here; the installation mode of the vertical machining assembly 2 in the present scheme is that the portal 201 is fixedly installed with the frame body 1, the X1 moving mechanism 202 is fixedly installed on the top of the portal 201, the Y1 moving mechanism 203 is installed on the action end of the X1 moving mechanism 202, the Z1 moving mechanism 204 is installed on the action end of the Y1 moving mechanism 203, and the vertical spindle 205 is installed on the action end of the Z1 moving mechanism 204, the X1 moving mechanism 202, the Y1 moving mechanism 203 and the Z1 moving mechanism 204 are linked to drive the vertical spindle 205 to move, a cutter head and a cutter are installed on the vertical spindle 205, and the cutter is driven to rotate by the vertical spindle 205.

[0066] Specifically, the horizontal machining assembly 3 comprises: an X2 moving mechanism 301, a Z2 moving mechanism 302, and a horizontal spindle 303, the X2 moving mechanism 301 is fixedly installed on the frame body 1, the Z2 moving mechanism 302 is fixedly installed on the action end of the X2 moving mechanism 301, the horizontal spindle 303 is installed on the action end of the Z2 moving mechanism 302, the X2 moving mechanism 301 and the Z2 moving mechanism 302 drive the horizontal spindle 303 to move on the vertical plane, the horizontal spindle 303 is provided with a cutter head and a cutter, and the horizontal spindle 303 drives the cutter head and the cutter to rotate, and the horizontal machining assembly 3 cooperates with the linear moving table assembly 401 of the clamping table 4 to realize milling of the workpiece a.

[0067] The present application improves the existing horizontal and vertical numerical control milling machines, adds the clamping table 4, the clamping table 4 comprises a linear moving table assembly 401 along the spindle axis direction of the horizontal machining assembly 3, a rotating table 402 and a conversion clamp 403, and the moving mechanism of the Y direction of the horizontal machining assembly 3 is simplified, so that numerical control milling of five surfaces of a workpiece can be completed at the same time (here, it refers to positioning and clamping to complete the machining of five surfaces at one time), the multiple clamping process is simplified, the machining efficiency is improved, and the shape and position tolerances of each surface of the workpiece can be well ensured, and the machining precision of the workpiece is improved.

[0068] In an embodiment, as shown in Figure 6 the linear moving table assembly 401 comprises: a bottom support 401a, a guide rod 401b, a lead screw 401c, a servo motor 401d, and a bottom plate 401e.

[0069] The bottom support 401a is fixedly installed on the top of the frame body 1, the bottom support 401a has a length direction, and a frame structure is formed in the length direction, the guide rod 401b is fixedly connected with the bottom support 401a along the length direction of the bottom support 401a, that is, both ends of the guide rod 401b are fixedly installed on the inner side of the frame structure, generally, two groups of guide rods 401b are symmetrically arranged, the lead screw 401c is rotatably installed with the bottom support 401a along the length direction of the bottom support 401a, the lead screw 401c is arranged in parallel with the guide rod 401b, the servo motor 401d is fixedly installed on the bottom support 401a, and the output end of the servo motor 401d is in transmission connection with the lead screw 401c, and the bottom plate 401e is in sliding cooperation with the guide rod 401b, and the bottom of the bottom plate 401e is fixedly provided with a sliding block matched with the lead screw 401c.

[0070] When the linear moving table assembly 401 operates, the servo motor 401d provides rotating power to drive the lead screw 401c to rotate, the sliding block matched with the lead screw 401c moves linearly, thereby driving the bottom plate 401e to move linearly, and in this process, the guide rod 401b guides the bottom plate 401e to avoid rotation or inclination of the bottom plate 401e.

[0071] In an embodiment, as shown in Figure 7 Figure 10 The rotating table 402 includes a housing 402a, a support shaft 402b, a driving assembly, a table plate 402h, a bottom cover disc 402e, a fastening block 402d, and an extrusion screw 402g, as shown in the middle.

[0072] Specifically, the housing 402a is fixedly installed with the bottom plate 401e, the bottom end of the housing 402a is of an open structure, the bottom end of the housing 402a is sealed by the bottom plate 401e, the support shaft 402b is located inside the housing 402a, the support shaft 402b is vertically arranged and has a diameter not less than 20 cm, has a supporting effect on various structures and workpieces installed above, the bottom end of the support shaft 402b is rotationally connected with the bottom plate 401e, the driving assembly is installed on the housing 402a, the driving assembly is used to drive the support shaft 402b to rotate, the bottom of the table plate 402h is fixedly installed with the bottom cover disc 402e through bolts, the inner side of the bottom cover disc 402e is provided with a trailing slot 402f, the trailing slot 402f is provided with the fastening block 402d, the two ends of the fastening block 402d are respectively provided with a first inclined surface 402da and a second inclined surface 402db, the top of the support shaft 402b is provided with a matching groove 402c matched with the end of the fastening block 402d, the matching groove 402c includes a key groove 402c1 and an inclined groove 402c2 located inside the key groove 402c1, the extrusion screw 402g is threadedly installed at the bottom of the bottom cover disc 402e, the end of the extrusion screw 402g is located inside the trailing slot 402f, and the end of the extrusion screw 402g is upwardly abutted against the second inclined surface 402db of the fastening block 402d.

[0073] Generally, two groups of the trailing slot 402f, the matching groove 402c, the fastening block 402d, and the extrusion screw 402g are arranged, and the two groups of the trailing slot 402f, the matching groove 402c, the fastening block 402d, and the extrusion screw 402g are symmetrically arranged to ensure the stability of the connection between the table plate 402h and the support shaft 402b; the design of the structure facilitates the installation of the table plate 402h, and the specific installation process is as follows: the extrusion screw 402g is loosened (the extrusion screw 402g is located at the lowermost position), at this time, the fastening block 402d can be inserted into the trailing slot 402f, the protruding part of the fastening block 402d is short, the user can integrally sleeve the table plate 402h, the bottom cover disc 402e, and the fastening block 402d on the top end of the support shaft 402b, the fastening block 402d is located in the key groove 402c1 of the matching groove 402c, the user tightens the extrusion screw 402g, at this time, the top end of the extrusion screw 402g extrudes the second inclined surface 402db, drives the fastening block 402d to slide out of the trailing slot 402f, and makes the fastening block 402d inserted into the inclined groove 402c2 at the deep part of the matching groove 402c, thereby completing the installation of the table plate 402h, and the installation of the structure can be stably stressed in the process of transmitting rotation between the table plate 402h and the support shaft 402b.​

[0074] When the rotating table 402 is in action, the driving assembly provides power to drive the rotating of the supporting shaft 402b, and the supporting shaft 402b drives the rotating of the table plate 402h installed on the top of the supporting shaft 402b.

[0075] In an embodiment, the driving assembly comprises a first shaft body 402k, a second gear 402l, a worm 402n, a worm wheel 402m and a rotating motor 402i.

[0076] The first shaft body 402k is rotatably installed on the shell 402a, and the first shaft body 402k is arranged in parallel with the supporting shaft 402b. The second gear 402l and the worm wheel 402m are fixedly installed on the first shaft body 402k. The first gear 402j is fixedly installed on the supporting shaft 402b. The first gear 402j is engaged with the second gear 402l. The rotating motor 402i is fixedly installed on the outer side of the shell 402a. The worm 402n is fixedly installed on the output end of the rotating motor 402i. The worm 402n cooperates with the worm wheel 402m.

[0077] The action principle of the driving assembly is that the rotating motor 402i provides power to drive the rotating of the worm 402n. The worm 402n is engaged with the worm wheel 402m, thereby driving the rotating of the worm wheel 402m. The worm wheel 402m directly drives the rotating of the first shaft body 402k. The first shaft body 402k drives the rotating of the second gear 402l. The second gear 402l is engaged with the first gear 402j, thereby driving the rotating of the first gear 402j. The first gear 402j is fixed with the supporting shaft 402b, that is, driving the rotating of the supporting shaft 402b.

[0078] In an embodiment, as shown in Figure 11 Figure 18 The conversion clamp 403 comprises a bottom shell 403a, a buckle cover 403c, a center gear 403d, an outer threaded cylinder body 403k, a second lifting sleeve 403l, a clamping disc body 403m, a sliding sleeve 403o, a lifting rod 403p, an inverted conical disc 403q, a third shaft body 403f, a first lifting sleeve 403h, a fourth shaft body 403s, a fourth gear 403t and a hand wheel 403x.

[0079] ​Specific, bottom shell 403a is fixedly installed through mounting piece 403b and table plate 402h, table plate 402h uses general T type groove workbench plate, the bottom of bottom shell 403a has the flange portion that protrudes outward, mounting piece 403b includes T type bolt and press plate and is composed, the top flange of bottom shell 403a is fixedly installed with buckle cover 403c, the cavity is formed between buckle cover 403c and bottom shell 403a, the bottom of central gear 403d is fixedly connected with annular support 403e, central gear 403d is gear ring structure, the bottom end of annular support 403e is rotatably installed with the inner bottom of bottom shell 403a, the top of central gear 403d is fixedly connected with outer thread cylinder body 403k, second lifting sleeve 403l is screwed with outer thread cylinder body 403k, and the outside of second lifting sleeve 403l is slidably connected with buckle cover 403c, clamping disc body 403m is fixedly installed with the top flange of second lifting sleeve 403l, clamping disc body 403m is annular, and the inside of clamping disc body 403m is close to the top end position and is provided with inverted taper mouth 403ma, a plurality of slit openings 403n are formed in the side of clamping disc body 403m, a plurality of slit openings 403n make the top of clamping disc body 403m be multi-petal structure, each petal part is deformed outward, can make the top diameter of clamping disc body 403m be larger, the bottom end of sliding sleeve 403o is fixedly installed with the inner bottom of bottom shell 403a, and the top end of sliding sleeve 403o is inwards, lifting rod 403p is slidably connected with sliding sleeve 403o, and the bottom end of lifting rod 403p is provided with limit end, limit end is slidably connected with the top end of sliding sleeve 403o, can limit the distance that lifting rod 403p is slid upward, inverted cone disc 403q is located in the inside of inverted taper mouth 403ma, and the bottom end of inverted cone disc 403q is fixedly installed with the top end of lifting rod 403p, inverted cone disc 403q can extrude inverted taper mouth 403ma, make each petal part of clamping disc body 403m be deformed outward, the top diameter of clamping disc body 403m be larger, the bottom end of third shaft body 403f is rotatably installed with the inner bottom of bottom shell 403a, and the outside of third shaft body 403f is fixedly installed with third gear 403g, third gear 403g is engaged with central gear 403d, relies on third gear 403g and central gear 403d engagement realizes the transmission of third shaft body 403f and outer thread cylinder body 403k, it can be seen that the rotation direction of third shaft body 403f and outer thread cylinder body 403k is opposite, first lifting sleeve 403h is screwed with third shaft body 403f, and the outside of first lifting sleeve 403h is slidably connected with buckle cover 403c, the top end of first lifting sleeve 403h is fixedly installed with L type support 403i, L type support 403i is installed with pneumatic clamping piece 403j on the top, the bottom end of fourth shaft body 403s is rotatably connected with bottom shell 403a, the outside of fourth shaft body 403s is fixedly installed with fourth gear 403t, fourth gear 403t is engaged with central gear 403d, the top end of fourth shaft body 403s is fixedly installed with hand wheel 403x.

[0080] In use, as shown in Figure 12 the state, when the position of the clamping disc body 403m is lower, the position of the pneumatic clamping piece 403j is higher, the workpiece can be placed on the top of the clamping disc body 403m, and then clamped and fixed by the pneumatic clamping piece 403j (the first clamping mode), in this clamping mode, the mounting circular groove a1 on the top of the workpiece a can be milled by the vertical machining assembly 2, as shown in Figure 18 the state, the mounting circular groove a1 on the top of the workpiece a is milled, and then the workpiece a is clamped based on the mounting circular groove a1 (the second clamping mode), as follows: the workpiece a is disassembled, then the user manually operates the hand wheel 403x to drive the fourth shaft body 403s to rotate, the fourth gear 403t on the fourth shaft body 403s also rotates, the fourth gear 403t is engaged with the center gear 403d, thereby driving the center gear 403d to rotate, the center gear 403d drives the outer threaded cylinder body 403k to rotate, the outer threaded cylinder body 403k is threadedly connected with the second lifting sleeve 403l, thereby being able to drive the second lifting sleeve 403l to rise, and at the same time, the center gear 403d is also engaged with the third gear 403g to drive the third gear 403g and the third shaft body 403f to rotate, and the third shaft body 403f rotates in the opposite direction of the outer threaded cylinder body 403k, the first lifting sleeve 403h is threadedly connected with the third shaft body 403f, thereby realizing driving the first lifting sleeve 403h to descend, this process can realize the position of the pneumatic clamping piece 403j to descend, without affecting the subsequent installation of the workpiece a, the workpiece a is installed upside down, that is, the mounting circular groove a1 is invertedly buckled on the clamping disc body 403m, then the hand wheel 403x is continuously rotated, the clamping disc body 403m moves upward, the clamping disc body 403m drives the inverted cone disc 403q and the lifting rod 403p to move upward, when the bottom end of the lifting rod 403p is limited by the top end of the sliding sleeve 403o, the inverted cone disc 403q and the lifting rod 403p cannot move upward, at this time, the inverted cone disc 403q extrudes the inverted cone opening 403ma, so that each petal part of the clamping disc body 403m deforms outward, the diameter of the top of the clamping disc body 403m becomes larger, thereby realizing the installation and fixation of the clamping disc body 403m and the workpiece a, after the fixation, the vertical machining assembly 2 and the horizontal machining assembly 3 act according to the preset program, thereby realizing the machining of the five surfaces of the workpiece a.

[0081] The present application, by designing the structure of the conversion clamp 403, includes two clamping modes, the first clamping mode can quickly clamp the workpiece a, and the mounting circular groove a1 is machined, then the second clamping mode is adopted to clamp in the inverted buckling inner support mode, thereby ensuring that the structure of the side surface of the workpiece a which is not clamped is not blocked, and the milling machining of the four surfaces and the top surface can be performed, thereby realizing the purpose of clamping once and machining five surfaces.

[0082] In an embodiment, the top end of the clamping disc body 403m is fixedly provided with a dust cover 403r, the bottom of the dust cover 403r is provided with an anti-collision pad, the dust cover 403r is used to block the top end of the clamping disc body 403m, and the anti-collision pad can avoid the top end of the inverted cone disc 403q from colliding with the dust cover 403r.

[0083] In an embodiment, the third shaft body 403f, the third gear 403g, the first lifting sleeve 403h, the L-shaped support 403i and the pneumatic clamping piece 403j are symmetrically provided with two groups, and the two pneumatic clamping pieces 403j clamp and fix the workpiece a.

[0084] In an embodiment, the fourth shaft body 403s and the third shaft body 403f are distributed at 90° with respect to the center of the bottom shell 403a, facilitating the user to operate the hand wheel 403x on the fourth shaft body 403s.

[0085] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. A CNC milling machine capable of simultaneously machining five sides of a workpiece, comprising a frame (1), a vertical machining assembly (2), a horizontal machining assembly (3), and a clamping table (4), characterized in that: The clamping table (4) is fixedly installed on the top of the frame (1). The vertical machining component (2) and the horizontal machining component (3) are both fixedly installed on the frame (1). The vertical machining component (2) is located above the clamping table (4), and the horizontal machining component (3) is located on one side of the clamping table (4). The clamping table (4) includes a linear moving table assembly (401), a rotary table (402) and a conversion fixture (403) along the spindle axis of the horizontal machining component (3). The rotary table (402) is installed on the moving end of the linear moving table assembly (401), and the conversion fixture (403) is installed on the moving end of the rotary table (402). The vertical machining assembly (2) includes: a gantry (201), an X1 moving mechanism (202), a Y1 moving mechanism (203), a Z1 moving mechanism (204), and a vertical spindle (205); The horizontal machining assembly (3) includes: an X2 moving mechanism (301), a Z2 moving mechanism (302), and a horizontal spindle (303); The linear motion stage assembly (401) includes: A base (401a) is fixedly installed on the top of the frame (1); Guide rod (401b), guide rod (401b) is fixedly connected to base support (401a) along the length direction of base support (401a); A lead screw (401c) is rotatably mounted to the base (401a) along the length of the base (401a); A servo motor (401d) is fixedly installed on the base (401a), and the output end of the servo motor (401d) is connected to the lead screw (401c) for transmission. The base plate (401e) is slidably engaged with the guide rod (401b), and a slider component that engages with the lead screw (401c) is fixedly provided at the bottom of the base plate (401e). The rotary table (402) includes: A housing (402a) is fixedly installed with a base plate (401e); A support shaft (402b) is located inside the housing (402a), and the bottom end of the support shaft (402b) is rotatably connected to the base plate (401e); A drive assembly is mounted on the housing (402a) and is used to drive the support shaft (402b) to rotate; A platform (402h) has a bottom cover plate (402e) fixedly installed on its bottom by bolts. The bottom cover plate (402e) has a drag groove (402f) on its inner side. A fastening block (402d) is provided in the drag groove (402f). The two ends of the fastening block (402d) are respectively provided with a first inclined surface (402da) and a second inclined surface (402db). The top of the support shaft (402b) has a mating groove (402c) that matches the end of the fastening block (402d). The mating groove (402c) includes a keyway (402c1) and an inclined groove (402c2) located inside the keyway (402c1). A compression screw (402g) is threaded onto the bottom of the bottom cover plate (402e), and the end of the compression screw (402g) is located inside the drag groove (402f), and the end of the compression screw (402g) abuts upward against the second inclined surface (402db) of the fastening block (402d).

2. A CNC milling machine capable of simultaneously machining five sides of a workpiece according to claim 1, characterized in that, The driving component includes: The first shaft (402k) is rotatably mounted to the housing (402a) and is arranged parallel to the support shaft (402b); A second gear (402l) and a worm gear (402m) are fixedly mounted on the first shaft (402k). A first gear (402j) is fixedly mounted on the support shaft (402b). The first gear (402j) meshes with the second gear (402l). A rotary motor (402i) is fixedly mounted on the outer side of the housing (402a). A worm (402n) is fixedly mounted on the output end of the rotary motor (402i). The worm (402n) cooperates with the worm gear (402m).

3. A CNC milling machine capable of simultaneously machining five sides of a workpiece according to claim 1, characterized in that, The conversion fixture (403) includes: A bottom shell (403a) is fixedly installed to a platform (402h) via a mounting component (403b), and a cover (403c) is fixedly installed on the top flange of the bottom shell (403a). A central gear (403d) has an annular support (403e) fixedly connected to its bottom. The bottom end of the annular support (403e) is rotatably installed with the inner bottom of the bottom shell (403a). An externally threaded cylinder (403k) is fixedly connected to the top of the central gear (403d). The second lifting sleeve (403l) is threadedly engaged with the external threaded cylinder (403k), and the outer side of the second lifting sleeve (403l) is slidably engaged with the cover (403c). A clamping disc (403m) is fixedly installed on the top flange of the second lifting sleeve (403l). The clamping disc (403m) is annular, and an inverted conical opening (403ma) is provided on the inner side of the clamping disc (403m) near the top. Several slits (403n) are opened on the side of the clamping disc (403m). A sliding sleeve (403o) is fixedly installed at its bottom end with the inner bottom of the bottom shell (403a), and the top end of the sliding sleeve (403o) is retracted inward. A lifting rod (403p) is slidably engaged with a sliding sleeve (403o), and a limiting end is provided at the bottom end of the lifting rod (403p). An inverted cone disc (403q) is located inside an inverted cone opening (403ma), and the bottom end of the inverted cone disc (403q) is fixedly installed with the top end of the lifting rod (403p). The third shaft (403f) has its bottom end rotatably mounted to the inner bottom of the bottom shell (403a), and a third gear (403k) is fixedly mounted on the outer side of the third shaft (403f), which meshes with the center gear (403d). The first lifting sleeve (403h) is threadedly engaged with the third shaft (403f), and the outer side of the first lifting sleeve (403h) is slidably engaged with the cover (403c). An L-shaped support (403i) is fixedly installed on the top of the first lifting sleeve (403h), and a pneumatic clamping component (403j) is installed on the top of the L-shaped support (403i). The fourth shaft (403s) has its bottom end rotatably connected to the bottom shell (403a). A fourth gear (403t) is fixedly installed on the outer side of the fourth shaft (403s), which meshes with the central gear (403d). A handwheel (403x) is fixedly installed on the top end of the fourth shaft (403s).

4. A CNC milling machine capable of simultaneously machining five sides of a workpiece according to claim 3, characterized in that: A dust cover (403r) is fixedly installed on the top of the clamping disc (403m), and an anti-collision pad is provided at the bottom of the dust cover (403r).

5. A CNC milling machine capable of simultaneously machining five sides of a workpiece according to claim 3, characterized in that: The third shaft (403f), the third gear (403g), the first lifting sleeve (403h), the L-shaped support (403i), and the pneumatic clamping component (403j) are all symmetrically arranged in two sets.

6. A CNC milling machine capable of simultaneously machining five sides of a workpiece according to claim 3, characterized in that: The fourth axis (403s) and the third axis (403f) are distributed at 90° relative to the center of the bottom shell (403a).

7. A CNC milling machine capable of simultaneously machining five sides of a workpiece according to claim 1, characterized in that: The gantry (201) is fixedly installed with the frame (1). The X1 moving mechanism (202) is fixedly installed on the top of the gantry (201). The Y1 moving mechanism (203) is installed on the moving end of the X1 moving mechanism (202). The Z1 moving mechanism (204) is installed on the moving end of the Y1 moving mechanism (203). The vertical spindle component (205) is installed on the moving end of the Z1 moving mechanism (204).

8. A CNC milling machine capable of simultaneously machining five sides of a workpiece according to claim 1, characterized in that: The X2 moving mechanism (301) is fixedly installed on the frame (1), the Z2 moving mechanism (302) is fixedly installed on the moving end of the X2 moving mechanism (301), and the horizontal spindle (303) is installed on the moving end of the Z2 moving mechanism (302).

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