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

Abstract

The invention provides a numerical control milling machine capable of simultaneously machining five surfaces of a workpiece, and relates to the field of milling machines for multi-surface machining, the numerical control milling machine comprises a frame body, a vertical machining assembly, a horizontal machining assembly and a clamping table; on the basis of improvement of existing horizontal and vertical numerical control milling machines, the clamping table is added and comprises the linear moving table assembly, the rotating table and the conversion clamp in the axis direction of the main shaft of the horizontal machining assembly, a moving mechanism in the Y direction of the horizontal machining assembly is simplified, numerical control milling of five faces of a machined workpiece can be completed at the same time, and the machining efficiency is improved. The multi-time clamping process is simplified, the machining efficiency is improved, the form and location tolerance of all faces of the workpiece can be well guaranteed, and the machining precision of the workpiece is improved.

Description

Technical Field

[0001] The invention relates to the technical field of multi-faceted milling machines, in particular to a numerically controlled milling machine capable of processing five faces of a workpiece simultaneously. Background Art

[0002] A CNC milling machine is a high-precision, high-efficiency automated machine tool, mainly used for milling of metals or other hard materials, and can achieve processing of complex shapes; a CNC milling machine has a multi-axis linkage function, capable of plane, curved surface and three-dimensional processing, and is widely used in mold manufacturing, aerospace, automobile manufacturing and other fields.

[0003] Horizontal CNC milling machines and vertical CNC milling machines are two main layout forms of CNC milling machines. The main difference between them lies in the spindle layout: the spindle axis of the horizontal CNC milling machine is parallel to the horizontal plane, which is suitable for vertical milling processing. The spindle axis of the vertical CNC milling machine is perpendicular to the horizontal plane, which is suitable for plane milling processing. When performing multi-faceted processing, especially for workpieces that need to be milled on five sides, multiple clamping of the workpiece is required to complete the processing, which not only makes the processing steps complicated and the processing efficiency low; but also the reference planes of multiple clampings are different, making it difficult to ensure the processing accuracy of the workpiece. For this reason, the present invention provides a CNC milling machine that can process five sides of a workpiece at the same time. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a CNC milling machine that can simultaneously process five sides of a workpiece, thereby solving the problem that when the prior milling machines are performing multi-sided processing, especially workpieces that require milling on all five sides, the workpiece needs to be clamped multiple times to complete the processing, which not only makes the processing steps complicated and the processing efficiency low; but also the reference planes of the multiple clampings are different, making it difficult to ensure the processing accuracy of the workpiece.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A CNC milling machine capable of processing five surfaces of a workpiece simultaneously comprises a frame, a vertical processing assembly, a horizontal processing assembly and a clamping table, wherein the clamping table is fixedly mounted on the top of the frame, the vertical processing assembly and the horizontal processing assembly are both fixedly mounted to the frame, and the vertical processing assembly is located above the clamping table, the horizontal processing assembly is located on one side of the clamping table, the clamping table comprises a linear moving table assembly along the main axis direction of the horizontal processing assembly, a rotating table and a conversion fixture, the rotating table is mounted on the action end of the linear moving table assembly, and the conversion fixture is mounted on the action end of the rotating table;

[0007] The vertical processing assembly includes: a gantry, an X1 moving mechanism, a Y1 moving mechanism, a Z1 moving mechanism, and a vertical spindle component;

[0008] The horizontal processing assembly includes: an X2 moving mechanism, a Z2 moving mechanism, and a horizontal spindle component.

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

[0010] A bottom bracket, the bottom bracket is fixedly mounted on the top of the frame;

[0011] A guide rod, the guide rod is fixedly connected to the bottom bracket along the length direction of the bottom bracket;

[0012] A lead screw, the lead screw being rotatably mounted with the base along the length direction of the base;

[0013] A servo motor, wherein the servo motor is fixedly mounted on the bottom bracket, and an output end of the servo motor is transmission-connected to a lead screw;

[0014] The bottom plate is slidably matched with the guide rod, and a slider member matched with the lead screw is fixedly arranged at the bottom of the bottom plate.

[0015] Preferably, the rotating platform comprises:

[0016] A housing, wherein the housing is fixedly mounted to the base plate;

[0017] A support shaft, wherein the support shaft is located inside the housing, and the bottom end of the support shaft is rotatably connected to the bottom plate;

[0018] A driving assembly, wherein the driving assembly is mounted on the housing and is used to drive the supporting shaft to rotate;

[0019] A table plate, the bottom of which is fixedly mounted with a bottom cover plate by bolts, a drag groove is provided on the inner side of the bottom cover plate, a fastening block is provided in the drag groove, a first inclined surface and a second inclined surface are provided at both ends of the fastening block, a matching groove matching with the end of the fastening block is provided on the top of the support shaft, and the matching groove includes a key groove opening and an inclined groove opening located inside the key groove opening;

[0020] A squeezing screw is threadably mounted on the bottom of the bottom cover plate, and an end of the squeezing screw is located inside the dragging groove, and the end of the squeezing screw is upwardly pressed against the second inclined surface of the fastening block.

[0021] Preferably, the driving assembly comprises:

[0022] A first shaft body, wherein the first shaft body is rotatably mounted with the housing, and the first shaft body is arranged parallel to the support shaft;

[0023] The second gear and the worm wheel are fixedly mounted on the first shaft, the first gear is fixedly mounted on the support shaft, the first gear is meshed with the second gear, a rotating motor is fixedly mounted on the outer side of the shell, a worm is fixedly mounted on the output end of the rotating motor, and the worm is matched with the worm wheel.

[0024] Preferably, the conversion fixture comprises:

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

[0026] A central gear, the bottom of which is fixedly connected to an annular support portion, the bottom end of which is rotatably mounted on the inner bottom of the bottom shell, and the top of which is fixedly connected to an externally threaded cylinder;

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

[0028] A clamping disc body, the clamping disc body is fixedly mounted on the top flange of the second lifting sleeve, the clamping disc body is annular, and an inverted cone opening is arranged on the inner side of the clamping disc body and near the top, and a plurality of slit openings are opened on the side of the clamping disc body;

[0029] A sliding sleeve, the bottom end of which is fixedly mounted on the inner bottom of the bottom shell, and the top end of which is retracted inwardly;

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

[0031] An inverted cone disk, wherein the inverted cone disk is located inside the inverted cone opening, and the bottom end of the inverted cone disk is fixedly mounted to the top end of the lifting rod;

[0032] A third shaft body, the bottom end of which is rotatably mounted on the inner bottom of the bottom shell, and a third gear is fixedly mounted on the outer side of the third shaft body, and the third gear is meshed with the central gear;

[0033] A first lifting sleeve, wherein the 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 on the top of the first lifting sleeve, and a pneumatic clamp is installed on the top of the L-shaped support;

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

[0035] Preferably, a dust cover is fixedly mounted on the top of the clamping disc body, and an anti-collision gasket is arranged on the bottom of the dust cover.

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

[0037] Preferably, the fourth axis and the third axis are distributed at 90° relative to the center of the bottom shell.

[0038] Preferably, the gantry is fixedly installed on the frame, the X1 moving mechanism is fixedly installed on the top of the gantry, the Y1 moving mechanism is installed on the action end of the X1 moving mechanism, the Z1 moving mechanism is installed on the action end of the Y1 moving mechanism, and the vertical spindle is installed on the action end of the Z1 moving mechanism.

[0039] Preferably, the X2 moving mechanism is fixedly mounted on the frame, the Z2 moving mechanism is fixedly mounted on the action end of the X2 moving mechanism, and the horizontal spindle member is mounted on the action end of the Z2 moving mechanism.

[0040] The present invention provides a CNC milling machine capable of processing five surfaces of a workpiece simultaneously. It has the following beneficial effects:

[0041] 1. The present invention is based on the improvement of the existing horizontal and vertical CNC milling machines, and adds a clamping table. The clamping table includes a linear moving table assembly along the spindle axis direction of the horizontal processing assembly, a rotating table and a conversion fixture, and simplifies the Y-direction moving mechanism of the horizontal processing assembly. It can simultaneously complete (here it means completing the processing of five surfaces in one positioning and clamping) CNC milling of five surfaces of the workpiece, simplify the multiple clamping process, improve the processing efficiency, and can well guarantee the shape and position tolerances of each surface of the workpiece, thereby improving the precision of workpiece processing.

[0042] 2. The present invention designs the structure of the conversion fixture, which includes two clamping methods. The first clamping method can quickly clamp the workpiece and process the installation circular groove. Then, the second clamping method is used to clamp the workpiece in an inverted inner support manner, thereby ensuring that the side of the workpiece is not blocked by the clamping structure. Milling processing can be performed on four surfaces and the top surface, thereby achieving the purpose of clamping five surfaces at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A three-dimensional diagram of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0044] Figure 2 A front view of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0045] Figure 3 A side view of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0046] Figure 4 A top view of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0047] Figure 5A three-dimensional diagram of a clamping table of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0048] Figure 6 A three-dimensional diagram of a linear moving table assembly of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0049] Figure 7 A front view of a rotary table of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0050] Figure 8 A cross-sectional view of a rotary table of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0051] Fig. 9 for Figure 8 A partial enlarged view of the middle part;

[0052] Fig.10 A schematic diagram of the internal structure of a rotary table of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0053] Fig.11 A three-dimensional diagram of a conversion fixture of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0054] Fig.12 A front view of a conversion fixture of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0055] Fig.13 A top view of a conversion fixture of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously proposed by the present invention;

[0056] Fig.14 for Fig.13 Section view of the section line at BB;

[0057] Fig.15 for Fig.13 Section view of the section line at CC;

[0058] Fig.16 This is a schematic diagram of the internal structure of a conversion fixture of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously, as proposed by the present invention;

[0059] Fig.17 An exploded schematic diagram of the central part of a conversion fixture of a CNC milling machine capable of processing five sides of a workpiece simultaneously proposed by the present invention;

[0060] Fig.18 The present invention provides a schematic diagram of a workpiece conversion orientation of a CNC milling machine capable of processing five surfaces of a workpiece simultaneously.

[0061] Among them, 1, frame; 2, vertical processing assembly; 201, gantry; 202, X1 moving mechanism; 203, Y1 moving mechanism; 204, Z1 moving mechanism; 205, vertical spindle; 3, horizontal processing assembly; 301, X2 moving mechanism; 302, Z2 moving mechanism; 303, horizontal spindle; 4, clamping table; 401, linear moving table assembly; 401a, bottom bracket; 401b, guide rod; 40 1c, lead screw; 401d, servo motor; 401e, bottom plate; 402, rotating 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 plate; 402f, drag slot; 402g, extrusion screw; 402h, table; 4 02i, rotating motor; 402j, first gear; 402k, first shaft; 402l, second gear; 402m, worm wheel; 402n, worm; 403, conversion fixture; 403a, bottom shell; 403b, mounting member; 403c, buckle cover; 403d, central gear; 403e, annular support; 403f, third shaft; 403g, third gear; 403h, first lifting sleeve; 403i , L-shaped support; 403j, pneumatic clamping part; 403k, external threaded cylinder; 403l, second lifting sleeve; 403m, clamping disk; 403ma, inverted cone mouth; 403n, gap mouth; 403o, sliding sleeve; 403p, lifting rod; 403q, inverted cone disk; 403r, dust cover; 403s, fourth axis; 403t, fourth gear; 403x, hand wheel; a, workpiece; a1, installation circular groove. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] Embodiment 1:

[0064] like Figure 1 - Fig.18As shown, an embodiment of the present invention provides a CNC milling machine capable of processing five surfaces of a workpiece at the same time, comprising a frame 1, a vertical processing assembly 2, a horizontal processing assembly 3 and a clamping table 4, wherein the clamping table 4 is used to clamp the workpiece a, the vertical processing assembly 2 is used to perform milling processing on the top surface of the workpiece a, and the horizontal processing assembly 3 is used to perform milling processing on the side surface of the workpiece a; in order to realize the processing of the five surfaces of the workpiece a, in this scheme, the clamping table 4 is specifically fixedly installed on the top of the frame 1, the top of the frame 1 is designed to be a receiving chamber for holding cutting fluid, and the top of the frame 1 is a plurality of structurally stable frame structures, the clamping table 4 is fixedly installed with the frame structure, the vertical processing assembly 2 and the horizontal processing assembly 3 are both fixedly installed with the frame 1, and the vertical processing assembly 2 is located above the clamping table 4, and the horizontal processing assembly 3 is located on one side of the clamping table 4. The clamping table 4 includes a linear movable table assembly 401, a rotating table 402 and a conversion fixture 403 along the spindle axis direction of the horizontal processing assembly 3. The rotating table 402 is installed at the action end of the linear movable table assembly 401, and the conversion fixture 403 is installed at the action end of the rotating table 402. The conversion fixture 403 is used to clamp and fix the workpiece a. The rotating table 402 can drive the conversion fixture 403 to rotate so that one side of the workpiece a faces the horizontal processing assembly 3; under certain control and adjustment, the rotating table 402 cooperates with the horizontal processing assembly 3 to complete the milling processing of the four sides of the workpiece. The linear movable table assembly 401 can manipulate the rotating table 402 and the conversion fixture 403 to move between the processing position and the clamping position, so that the user can put the workpiece a on and off at the clamping position, and move the workpiece a to the processing position for processing, which is safer to operate.

[0065] Specifically, the vertical processing 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 four-axis drive can realize the movement in three directions in space and the vertical spindle 205 drives the tool to rotate, thereby realizing milling processing; the four-axis structure of the vertical processing assembly 2 is a common structure of the current vertical milling machine, which is selected for use in this field, and the four-axis structure of the vertical processing assembly 2 is not described in detail here; the installation method of the vertical processing assembly 2 in this solution is: the gantry 201 The X1 moving mechanism 202 is fixedly installed with the frame body 1, the X1 moving mechanism 202 is fixedly installed on the top of the gantry 201, the Y1 moving mechanism 203 is installed at the action end of the X1 moving mechanism 202, the Z1 moving mechanism 204 is installed at the action end of the Y1 moving mechanism 203, and the vertical spindle component 205 is installed at 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 jointly drive the vertical spindle component 205 to move. The cutter disc and the tool are installed on the vertical spindle component 205, and the vertical spindle component 205 drives the tool to rotate.

[0066] Specifically, the horizontal machining component 3 includes: an X2 moving mechanism 301, a Z2 moving mechanism 302, and a horizontal spindle component 303. The X2 moving mechanism 301 is fixedly installed on the frame 1, the Z2 moving mechanism 302 is fixedly installed on the action end of the X2 moving mechanism 301, and the horizontal spindle component 303 is installed on the action end of the Z2 moving mechanism 302. The X2 moving mechanism 301 and the Z2 moving mechanism 302 cooperate to drive the horizontal spindle component 303 to move on a vertical plane. A cutter disc and a tool are installed on the horizontal spindle component 303, and the horizontal spindle component 303 drives the cutter disc and the tool to rotate. The horizontal machining component 3 cooperates with the linear moving table component 401 of the clamping table 4 to realize milling processing of the workpiece a.

[0067] The present invention is based on the improvement of the existing horizontal and vertical CNC milling machines, and adds a clamping table 4. The clamping table 4 includes a linear movable table component 401 along the spindle axis direction of the horizontal processing component 3, a rotating table 402 and a conversion fixture 403, and simplifies the Y-direction moving mechanism of the horizontal processing component 3. It can simultaneously complete (here it means completing the processing of five surfaces in one positioning and clamping) CNC milling of five surfaces of the workpiece, simplify multiple clamping processes, improve processing efficiency, and can well guarantee the shape and position tolerances of each surface of the workpiece, thereby improving the accuracy of workpiece processing.

[0068] In one embodiment, if Figure 6 As shown in FIG. 4 , the linear moving stage assembly 401 includes: a base 401 a , a guide rod 401 b , a lead screw 401 c , a servo motor 401 d , and a base plate 401 e .

[0069] The base bracket 401a is fixedly installed on the top of the frame 1. The base bracket 401a has a length direction and forms a frame structure in the length direction. The guide rod 401b is fixedly connected to the base bracket 401a along the length direction of the base bracket 401a, that is, the two ends of the guide rod 401b are respectively 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 base bracket 401a along the length direction of the base bracket 401a. The lead screw 401c is arranged parallel to the guide rod 401b. The servo motor 401d is fixedly installed on the base bracket 401a, and the output end of the servo motor 401d is transmission-connected to the lead screw 401c. The bottom plate 401e is slidably matched with the guide rod 401b, and a slider member matched with the lead screw 401c is fixedly arranged at the bottom of the bottom plate 401e.

[0070] When the linear moving platform assembly 401 is in motion, the servo motor 401d provides rotational power to drive the lead screw 401c to rotate, and the slider member cooperating with the lead screw 401c moves linearly, thereby driving the base plate 401e to move linearly. During this process, the guide rod 401b guides the base plate 401e to prevent the base plate 401e from rotating or tilting.

[0071] In one embodiment, if Figure 7 - Fig.10 As shown in FIG. 4 , the rotating table 402 includes: a housing 402a, a supporting shaft 402b, a driving assembly, a table plate 402h, a bottom cover plate 402e, a fastening block 402d, and a pressing screw 402g.

[0072] Specifically, the shell 402a is fixedly installed with the bottom plate 401e, the bottom end of the shell 402a is an open structure, and the bottom port of the shell 402a is sealed by the bottom plate 401e. The support shaft 402b is located inside the shell 402a, and the support shaft 402b is vertically arranged, and its diameter is not less than 20cm, and it has a supporting effect on various structures and workpieces installed above it. The bottom end of the support shaft 402b is rotatably connected with the bottom plate 401e, and the driving component is installed on the shell 402a. The driving component is used to drive the support shaft 402b to rotate. The bottom of the table 402h is fixedly installed with a bottom cover plate 402e by bolts, and the inner side of the bottom cover plate 402e is provided with A drag-mouth groove 402f is provided with a fastening block 402d, and a first inclined surface 402da and a second inclined surface 402db are respectively provided at both ends of the fastening block 402d. A matching groove 402c matching the end of the fastening block 402d is provided on the top of the support shaft 402b, and the matching groove 402c includes a key slot 402c1 and an inclined slot 402c2 located on the inner side of the key slot 402c1. The extrusion screw 402g is threadedly installed on the bottom of the bottom cover plate 402e, and the end of the extrusion screw 402g is located inside the drag-mouth groove 402f, and the end of the extrusion screw 402g presses upward against the second inclined surface 402db of the fastening block 402d.

[0073] Generally, two groups of the drag-mouth groove 402f, the matching groove 402c, the fastening block 402d, and the extrusion screw 402g are arranged, and the two groups of the drag-mouth groove 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 402h and the support shaft 402b; the design of this structure is convenient for installing the table 402h, and the specific installation process is: loosen the extrusion screw 402g (the extrusion screw 402g is at the lowest position), at this time, the fastening block 402d can be inserted into the interior of the drag-mouth groove 402f, and the protruding part of the fastening block 402d is short, and the user can adjust it. The table 402h, the bottom cover plate 402e and the fastening block 402d are sleeved on the top end of the support shaft 402b, and the fastening block 402d is located in the key slot 402c1 of the matching slot 402c. The user tightens the extrusion screw 402g. At this time, the top end of the extrusion screw 402g squeezes the second inclined surface 402db, driving the fastening block 402d to slide out of the drag slot 402f, so that the fastening block 402d is inserted into the inclined slot 402c2 in the deep part of the matching slot 402c, thereby completing the installation of the table 402h. The installation of this structure can be stable under force during the process of transmitting rotation between the table 402h and the support shaft 402b.

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

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

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

[0077] The operating principle of the driving component is: the rotating motor 402i provides power to drive the worm 402n to rotate, the worm 402n meshes with the worm wheel 402m, thereby driving the worm wheel 402m to rotate, the worm wheel 402m directly drives the first shaft 402k to rotate, the first shaft 402k drives the second gear 402l to rotate, the second gear 402l meshes with the first gear 402j, thereby driving the first gear 402j to rotate, and the first gear 402j is fixed to the support shaft 402b, that is, it drives the support shaft 402b to rotate.

[0078] In one embodiment, if Fig.11 - Fig.18 As shown, the conversion fixture 403 includes: a bottom shell 403a, a buckle cover 403c, a central gear 403d, an externally threaded cylinder 403k, a second lifting sleeve 403l, a clamping disk 403m, a sliding sleeve 403o, a lifting rod 403p, an inverted cone disk 403q, a third shaft 403f, a first lifting sleeve 403h, a fourth shaft 403s, a fourth gear 403t and a hand wheel 403x.

[0079] Specifically, the bottom shell 403a is fixedly installed with the table 402h through the mounting piece 403b, the table 402h uses a universal T-slot work table, the bottom of the bottom shell 403a has a flange protruding outward, the mounting piece 403b includes a T-bolt and a pressure plate, the top flange of the bottom shell 403a is fixedly installed with a buckle cover 403c, a cavity is formed between the buckle cover 403c and the bottom shell 403a, the bottom of the central gear 403d is fixedly connected with an annular support portion 403e, the central gear 403d is a gear ring structure, the bottom end of the annular support portion 403e is rotatably installed with the inner bottom of the bottom shell 403a, the top of the central gear 403d is fixedly connected with an externally threaded cylinder 403k, and the second lifting sleeve 403l is screwed with the externally threaded cylinder 403k The outer side of the second lifting sleeve 403l is slidably matched with the buckle cover 403c, the clamping disc 403m is fixedly installed with the top flange of the second lifting sleeve 403l, the clamping disc 403m is annular, and the inner side of the clamping disc 403m and near the top position is provided with an inverted cone 403ma, and the side of the clamping disc 403m is provided with a plurality of slits 403n, and the plurality of slits 403n make the top of the clamping disc 403m present a multi-petal structure, and each petal part is deformed outwardly, so that the top diameter of the clamping disc 403m can be enlarged, the bottom end of the sliding sleeve 403o is fixedly installed with the inner bottom of the bottom shell 403a, and the top end of the sliding sleeve 403o is retracted inwardly, the lifting rod 403p is slidably matched with the sliding sleeve 403o, and The bottom end of the lifting rod 403p is provided with a limiting end, which cooperates with the top end of the sliding sleeve 403o to limit the upward sliding distance of the lifting rod 403p. The inverted cone disk 403q is located inside the inverted cone mouth 403ma, and the bottom end of the inverted cone disk 403q is fixedly installed with the top end of the lifting rod 403p. The inverted cone disk 403q can squeeze the inverted cone mouth 403ma to make the petals of the clamping disk body 403m deform outward, and the top diameter of the clamping disk body 403m becomes larger. The bottom end of the third shaft body 403f is rotatably installed with the inner bottom of the bottom shell 403a, and the third gear 403g is fixedly installed on the outer side of the third shaft body 403f. The third gear 403g is meshed with the central gear 403d. d is meshed to realize the transmission of the third shaft body 403f and the external threaded cylinder 403k. It can be seen that the rotation directions of the third shaft body 403f and the external threaded cylinder 403k are opposite, the first lifting sleeve 403h is threadedly matched with the third shaft body 403f, and the outer side of the first lifting sleeve 403h is slidingly matched with the buckle cover 403c, the top of the first lifting sleeve 403h is fixedly installed with an L-shaped support 403i, and the top of the L-shaped support 403i is installed with a pneumatic clamp 403j, the bottom end of the fourth shaft body 403s is rotatably connected with the bottom shell 403a, the outer side of the fourth shaft body 403s is fixedly installed with a fourth gear 403t, the fourth gear 403t is meshed with the center gear 403d, and the top of the fourth shaft body 403s is fixedly installed with a handwheel 403x.

[0080] When using, Fig.12 In the state shown in , the position of the clamping plate 403m is lower, and the position of the pneumatic clamping member 403j is higher. The workpiece can be placed on the top of the clamping plate 403m, and then clamped and fixed by the pneumatic clamping member 403j (the first clamping method). In this clamping method, the vertical processing assembly 2 can be used to mill the mounting circular groove a1 on the top of the workpiece a. Fig.18 As shown in the figure, a mounting circular groove a1 is milled on the top of the workpiece a, and then the workpiece a is clamped based on the mounting circular groove a1 (the second clamping method), which is as follows: the workpiece a is disassembled and unloaded, and then the user manually operates the hand wheel 403x to drive the fourth shaft body 403s to rotate, and the fourth gear 403t on the fourth shaft body 403s also rotates accordingly, and the fourth gear 403t meshes with the center gear 403d, thereby driving the center gear 403d to rotate, and the center gear 403d drives the externally threaded cylinder 403k to rotate, and the externally threaded cylinder 403k is threadedly matched with the second lifting sleeve 403l, thereby driving the second lifting sleeve 403l to rise, and at the same time, the center gear 403d is also meshed with the third gear 403g for transmission, driving the third gear 403g and the third shaft body 403f to rotate, and the rotation direction of the third shaft body 403f is opposite to that of the externally threaded cylinder 403k, and the first lifting sleeve 403h is engaged with the third shaft body 40 3f thread fits, thereby driving the first lifting sleeve 403h to descend. This process can realize the lowering of the pneumatic clamping member 403j, which does not affect the subsequent installation of the workpiece a. The workpiece a is installed upside down, that is, the installation circular groove a1 is buckled on the clamping plate body 403m, and then the hand wheel 403x is continued to be turned, and the clamping plate body 403m moves up. The clamping plate body 403m drives the inverted cone plate 403q and the lifting rod 403p to move up. When the bottom end of the lifting rod 403p is moved by the sliding sleeve When the top of 403o is restricted, the inverted cone disk 403q and the lifting rod 403p will not be able to move up. At this time, the inverted cone disk 403q squeezes the inverted cone mouth 403ma, causing the petals of the clamping disk body 403m to deform outward, and the top diameter of the clamping disk body 403m becomes larger, thereby realizing the installation and fixation of the clamping disk body 403m and the workpiece a. After this fixation, the vertical processing component 2 and the horizontal processing component 3 act in sequence according to the preset program to realize the processing of the 5 surfaces of the workpiece a.

[0081] The present invention designs the structure of the conversion fixture 403, which includes two clamping methods. The first clamping method can quickly clamp the workpiece a and process the installation circular groove a1. Then, the second clamping method is used to clamp the workpiece a in an inverted inner support manner, thereby ensuring that the side of the workpiece a is not blocked by the clamping structure. Milling processing can be performed on four surfaces and the top surface, thereby achieving the purpose of clamping five surfaces at one time.

[0082] In one embodiment, a dust cover 403r is fixedly installed on the top of the clamping disk body 403m, and an anti-collision gasket is provided at the bottom of the dust cover 403r. The dust cover 403r is used to block the top port of the clamping disk body 403m. The anti-collision gasket can prevent the top of the inverted cone disk 403q from colliding with the dust cover 403r.

[0083] In one embodiment, the third shaft 403f, the third gear 403g, the first lifting sleeve 403h, the L-shaped support 403i, and the pneumatic clamping member 403j are symmetrically arranged in two groups, and the two pneumatic clamping members 403j clamp and fix the workpiece a.

[0084] In one embodiment, the fourth shaft 403s and the third shaft 403f are arranged at 90 degrees relative to the center of the bottom shell 403a, so that the user can operate the hand wheel 403x on the fourth shaft 403s easily.

[0085] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A CNC milling machine capable of processing five surfaces of a workpiece simultaneously, comprising a frame (1), a vertical processing assembly (2), a horizontal processing assembly (3) and a clamping table (4), characterized in that: The clamping table (4) is fixedly mounted on the top of the frame (1); the vertical processing assembly (2) and the horizontal processing assembly (3) are both fixedly mounted on the frame (1); the vertical processing assembly (2) is located above the clamping table (4); the horizontal processing assembly (3) is located on one side of the clamping table (4); the clamping table (4) comprises a linear movable table assembly (401) along the spindle axis direction of the horizontal processing assembly (3), a rotating table (402) and a conversion fixture (403); the rotating table (402) is mounted on the action end of the linear movable table assembly (401); and the conversion fixture (403) is mounted on the action end of the rotating table (402); The vertical processing assembly (2) comprises: a gantry (201), an X1 moving mechanism (202), a Y1 moving mechanism (203), a Z1 moving mechanism (204), and a vertical spindle component (205); The horizontal processing assembly (3) comprises: an X2 moving mechanism (301), a Z2 moving mechanism (302), and a horizontal spindle component (303).

2. A CNC milling machine capable of processing five surfaces of a workpiece simultaneously according to claim 1, characterized in that: The linear moving platform assembly (401) comprises: A bottom bracket (401a), wherein the bottom bracket (401a) is fixedly mounted on the top of the frame (1); A guide rod (401b), the guide rod (401b) is fixedly connected to the bottom bracket (401a) along the length direction of the bottom bracket (401a); A lead screw (401c), wherein the lead screw (401c) is rotatably mounted with the base (401a) along the length direction of the base (401a); A servo motor (401d), wherein the servo motor (401d) is fixedly mounted on the base (401a), and an output end of the servo motor (401d) is drivingly connected to the lead screw (401c); A bottom plate (401e) is slidably matched with the guide rod (401b), and a slider member matched with the lead screw (401c) is fixedly arranged at the bottom of the bottom plate (401e).

3. A CNC milling machine capable of processing five surfaces of a workpiece simultaneously according to claim 2, characterized in that: The rotating platform (402) comprises: A housing (402a), wherein the housing (402a) is fixedly mounted on a bottom plate (401e); A support shaft (402b), wherein the support shaft (402b) is located inside the housing (402a), and the bottom end of the support shaft (402b) is rotatably connected to the bottom plate (401e); A driving assembly, the driving assembly is mounted on the housing (402a), and the driving assembly is used to drive the support shaft (402b) to rotate; A table plate (402h), the bottom of which is fixedly provided with a bottom cover plate (402e) by bolts, a drag groove (402f) is provided on the inner side of the bottom cover plate (402e), a fastening block (402d) is provided in the drag groove (402f), a first inclined surface (402da) and a second inclined surface (402db) are provided at both ends of the fastening block (402d), a matching groove (402c) matching with the end of the fastening block (402d) is provided on the top of the support shaft (402b), and the matching groove (402c) includes a key groove opening (402c1) and an inclined groove opening (402c2) located on the inner side of the key groove opening (402c1); A squeezing screw (402g) is threadedly mounted on the bottom of the bottom cover plate (402e), and the end of the squeezing screw (402g) is located inside the drag groove (402f), and the end of the squeezing screw (402g) is upwardly pressed against the second inclined surface (402db) of the fastening block (402d).

4. A CNC milling machine capable of processing five surfaces of a workpiece simultaneously according to claim 3, characterized in that: The drive assembly comprises: A first shaft (402k), wherein the first shaft (402k) is rotatably mounted on the housing (402a), and the first shaft (402k) is arranged in parallel with the support shaft (402b); A second gear (402l) and a worm wheel (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) is meshed with the second gear (402l); a rotating 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 rotating motor (402i); and the worm (402n) cooperates with the worm wheel (402m).

5. A CNC milling machine capable of processing five surfaces of a workpiece simultaneously according to claim 3, characterized in that: The conversion fixture (403) comprises: A bottom shell (403a), wherein the bottom shell (403a) is fixedly mounted on the table (402h) via a mounting member (403b), and a buckle cover (403c) is fixedly mounted on the top flange of the bottom shell (403a); A central gear (403d), wherein the bottom of the central gear (403d) is fixedly connected to an annular support portion (403e), the bottom end of the annular support portion (403e) is rotatably mounted to the inner bottom of the bottom shell (403a), and the top of the central gear (403d) is fixedly connected to an externally threaded cylinder (403k); A second lifting sleeve (403l), wherein the second lifting sleeve (403l) is threadedly matched with the external threaded cylinder (403k), and the outer side of the second lifting sleeve (403l) is slidably matched with the buckle cover (403c); A clamping disc (403m), the clamping disc (403m) is fixedly mounted to the top flange of the second lifting sleeve (403l), the clamping disc (403m) is annular, and an inverted cone opening (403ma) is provided on the inner side of the clamping disc (403m) and near the top, and a plurality of slit openings (403n) are provided on the side of the clamping disc (403m); A sliding sleeve (403o), wherein the bottom end of the sliding sleeve (403o) is fixedly mounted to the inner bottom of the bottom shell (403a), and the top end of the sliding sleeve (403o) is retracted inwards; A lifting rod (403p), wherein the lifting rod (403p) is slidably matched with the sliding sleeve (403o), and a limiting end is provided at the bottom end of the lifting rod (403p); An inverted cone disk (403q), wherein the inverted cone disk (403q) is located inside the inverted cone opening (403ma), and the bottom end of the inverted cone disk (403q) is fixedly mounted to the top end of the lifting rod (403p); A third shaft (403f), the bottom end of the third shaft (403f) is rotatably mounted on 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), and the third gear (403k) is meshed with the central gear (403d); A first lifting sleeve (403h), wherein the first lifting sleeve (403h) is threadedly matched with the third shaft (403f), and the outer side of the first lifting sleeve (403h) is slidably matched with the buckle cover (403c), and an L-shaped support (403i) is fixedly installed on the top of the first lifting sleeve (403h), and a pneumatic clamp (403j) is installed on the top of the L-shaped support (403i); A fourth shaft body (403s), the bottom end of the fourth shaft body (403s) is rotatably connected to the bottom shell (403a), a fourth gear (403t) is fixedly installed on the outer side of the fourth shaft body (403s), the fourth gear (403t) is meshed with the central gear (403d), and a hand wheel (403x) is fixedly installed on the top end of the fourth shaft body (403s).

6. A CNC milling machine capable of processing five surfaces of a workpiece simultaneously according to claim 5, characterized in that: A dust cover (403r) is fixedly mounted on the top of the clamping disc body (403m), and an anti-collision gasket is arranged on the bottom of the dust cover (403r).

7. A CNC milling machine capable of processing five surfaces of a workpiece simultaneously according to claim 5, 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 member (403j) are all symmetrically arranged in two groups.

8. The CNC milling machine capable of processing five surfaces of a workpiece simultaneously according to claim 5, characterized in that: The fourth shaft (403s) and the third shaft (403f) are distributed at 90 degrees relative to the center of the bottom shell (403a).

9. A CNC milling machine capable of processing five surfaces of a workpiece simultaneously according to claim 1, characterized in that: The door frame (201) is fixedly mounted on the frame body (1), the X1 moving mechanism (202) is fixedly mounted on the top of the door frame (201), the Y1 moving mechanism (203) is mounted on the action end of the X1 moving mechanism (202), the Z1 moving mechanism (204) is mounted on the action end of the Y1 moving mechanism (203), and the vertical spindle component (205) is mounted on the action end of the Z1 moving mechanism (204).

10. A CNC milling machine capable of processing five surfaces of a workpiece simultaneously according to claim 1, characterized in that: The X2 moving mechanism (301) is fixedly mounted on the frame (1), the Z2 moving mechanism (302) is fixedly mounted on the action end of the X2 moving mechanism (301), and the horizontal spindle component (303) is mounted on the action end of the Z2 moving mechanism (302).

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