CN212217200U - High-efficient bull numerically controlled fraise machine - Google Patents

High-efficient bull numerically controlled fraise machine Download PDF

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Publication number
CN212217200U
CN212217200U CN202020333952.6U CN202020333952U CN212217200U CN 212217200 U CN212217200 U CN 212217200U CN 202020333952 U CN202020333952 U CN 202020333952U CN 212217200 U CN212217200 U CN 212217200U
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sliding
main shaft
mechanical main
mechanical
drives
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CN202020333952.6U
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朱立无
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Dongguan Sharpe Cnc Equipment Co ltd
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Dongguan Sharpe Cnc Equipment Co ltd
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Abstract

The utility model discloses a high-efficiency multi-head numerical control milling machine, which is characterized by comprising an underframe, a cross sliding table, a workpiece jig, a stand column and a Z-axis sliding table; the cross sliding table is arranged on the bottom frame and drives the workpiece jig to move; the upright post is positioned beside the cross sliding table and is arranged on the bottom frame; the Z-axis sliding table is arranged on the upright column and drives the bracket which is slidably arranged on the upright column to slide up and down; a plurality of mechanical spindles are rotatably mounted on the support, and each mechanical spindle is provided with a milling cutter matched with the workpiece fixture; and the bracket is also provided with a motor for driving all the mechanical main shafts to rotate. The utility model discloses set up a plurality of milling cutters simultaneously on a numerical control milling machine, reach the purpose that mills the operation to a plurality of work pieces simultaneously, have advantages such as processing operating efficiency is high, occupation space is little.

Description

High-efficient bull numerically controlled fraise machine
Technical Field
The utility model belongs to the technical field of the machining equipment technique and specifically relates to a high-efficient bull numerically controlled fraise machine.
Background
The numerical control milling machine is a novel automatic machine tool generated by adding a programmable logic controller (namely a PLC industrial control system) into a traditional milling machine; the work of the milling cutter mainly depends on the relative motion between the milling cutter rotating at high speed on the working head and the workpiece, so that the purpose of cutting the workpiece into a specified shape by the milling cutter is achieved.
The existing milling machine is generally a single-head numerical control milling machine, namely a numerical control milling machine provided with only one milling cutter; when a large quantity of similar workpieces need to be processed, a single workpiece needs to be clamped on a workpiece fixture of a numerical control milling machine for milling, and after one workpiece is processed, the milling operation of the next workpiece is started; along with the increase of the number of workpieces, if a mode of simultaneously operating a plurality of numerically controlled milling machines is additionally arranged, the defects of overhigh integral manufacturing cost, insufficient operators, overlarge occupied space, increased requirements on supporting equipment and the like of the numerically controlled milling machines exist.
Thus, the prior art is subject to improvement and advancement.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a problem to among the above-mentioned prior art, provide a high-efficient bull numerically controlled fraise machine, this numerically controlled fraise machine is through setting up a plurality of milling cutter (being a plurality of working heads) on current numerically controlled fraise machine, reaches a numerically controlled fraise machine and can carry out milling process's purpose to a plurality of work pieces simultaneously.
In order to solve the technical problem, the utility model adopts a technical proposal that the high-efficiency multi-head numerical control milling machine comprises an underframe, a cross sliding table, a workpiece fixture, a stand column and a Z-axis sliding table; the cross sliding table is arranged on the bottom frame and drives the workpiece jig to move in the horizontal plane; the upright post is positioned beside the cross sliding table and is arranged on the bottom frame; the Z-axis sliding table is arranged on the upright column and drives the bracket which is slidably arranged on the upright column to slide up and down; a plurality of mechanical spindles are rotatably mounted on the support, and each mechanical spindle is provided with a milling cutter matched with the workpiece fixture; and the bracket is also provided with a motor for driving all the mechanical main shafts to rotate.
As a further elaboration of the above technical solution:
in the above technical scheme, the device further comprises a guide rail pair, wherein a guide rail of the guide rail pair is connected with the upright post, and a sliding block of the guide rail pair is connected with the bracket.
In the technical scheme, the six mechanical main shafts are arranged in two rows and three columns; the three mechanical main shafts in the first row are sequentially a first mechanical main shaft, a second mechanical main shaft and a third mechanical main shaft from left to right; the three mechanical main shafts in the second row are a fourth mechanical main shaft, a fifth mechanical main shaft and a sixth mechanical main shaft in sequence from left to right; the motor drives the first mechanical main shaft, the fifth mechanical main shaft and the third mechanical main shaft to rotate through belt wheel transmission; the first mechanical main shaft drives the fourth mechanical main shaft to rotate through belt wheel transmission; the fifth mechanical main shaft drives the second mechanical main shaft to rotate through belt wheel transmission; and the third mechanical main shaft drives the sixth mechanical main shaft to rotate through belt wheel transmission.
In the technical scheme, the workpiece jig comprises a bottom plate and six groups of clamping mechanisms; the cross sliding table drives the bottom plate to move, and six groups of clamping mechanisms respectively corresponding to the six mechanical main shafts are arranged on the bottom plate; each clamping mechanism comprises a first clamping plate, a second clamping plate and a cylinder; the first clamping plate is fixedly connected with the bottom plate; the cylinder is arranged on the bottom plate, and a piston rod of the cylinder is connected with the second clamping plate matched with the first clamping plate.
In the technical scheme, the cross sliding table comprises a Y-axis sliding table and an X-axis sliding table, the Y-axis sliding table is arranged on the bottom frame, the Y-axis sliding table drives the X-axis sliding table to longitudinally move, and the X-axis sliding table drives the bottom plate to transversely move.
In the technical scheme, the Z-axis sliding table is a ball screw sliding table or a synchronous belt sliding table; or the Y-axis sliding table is a ball screw sliding table or a synchronous belt sliding table; or the X-axis sliding table is a ball screw sliding table or a synchronous belt sliding table.
In the technical scheme, the mechanical spindle comprises a shaft sleeve, a pull rod and a collet chuck; the shaft sleeve is rotatably arranged on the support, the pull rod is arranged in the through hole of the shaft sleeve, and the bottom end of the pull rod is connected with the collet chuck.
The utility model has the advantages that firstly, the cross sliding table is matched with the Z-axis sliding table to realize the relative three-axis cutting motion between the workpiece and the milling cutter; secondly, a plurality of milling cutters are arranged on the machine head, and simultaneously milling operation of a plurality of workpieces by one numerically controlled milling machine is realized, compared with a mode that a plurality of numerically controlled milling machines mill a plurality of workpieces simultaneously, when the same number of workpieces are processed simultaneously, the utility model has the advantages of lower overall cost of required equipment, fewer operators, smaller required operation space, fewer required matched loading and unloading devices and the like, and is more suitable for industrial production; thirdly, as the plurality of milling cutters are arranged on the support, the overall weight is improved more, and meanwhile, when the plurality of milling cutters work simultaneously, the workpiece generates larger reaction force on the support, and the support is slidably mounted on the upright column, so that the accuracy of the vertical sliding of the support is ensured, and the rigidity of the support is also ensured when the milling cutters work; fourthly, compared with a common main shaft, the mechanical main shaft has the advantages of high rigidity, high rotation precision and the like.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a schematic view of the transmission structure of the motor and the mechanical spindle of the present invention;
fig. 3 is a schematic structural view of the workpiece fixture of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
Fig. 1-3 illustrate a specific embodiment of the utility model, referring to fig. 1-3, a high-efficient multi-head numerically controlled fraise machine, which comprises an underframe 1, a cross sliding table 2, a workpiece fixture 3, a column 4, a Z-axis sliding table 5 and a mechanical main shaft 7. The cross sliding table 2 is arranged on the upper portion of the front end of the bottom frame 1, and the cross sliding table 2 drives the workpiece jig 3 to move in the horizontal plane. The stand 4 is located the side of cross slip table 2, specifically speaking: the upright post 4 is installed on the upper portion of the rear end of the underframe 1. The Z-axis sliding table 5 is disposed on the column 4, and drives the bracket 6 slidably mounted on the column 4 to slide up and down, where: the Z-axis sliding table 5 can be any linear sliding table module in the prior art, including but not limited to a synchronous belt sliding table, an air cylinder sliding table and a ball screw sliding table; in the present embodiment: the Z-axis sliding table 5 is a ball screw sliding table, a servo motor of the ball screw sliding table is fixedly mounted at the top of the stand column 4 and connected with an external power supply, and the support 6 is fixedly connected with the sliding table of the ball screw sliding table, namely a screw nut seat, so that the Z-axis sliding table 5 can be driven by a screw rod to slide up and down through the support 6. Six mechanical main shafts 7 are rotatably mounted on the bracket 6, specifically: each of the machine spindles 7 includes a sleeve 8, a drawbar 9, and a collet chuck 10. The shaft sleeve 8 is rotatably arranged on the bracket 6; the pull rod 9 is arranged in the through hole of the shaft sleeve 8 and is in key connection with the shaft sleeve 8; the lower end of the pull rod 9 is fixedly connected with the collet chuck 10, and a milling cutter 11 is clamped on the collet chuck 10; compared with a common main shaft, the mechanical main shaft 7 has the advantages of high rigidity, high rotation precision and the like. And the bracket 6 is also provided with a motor 13 for driving all the mechanical main shafts 7 to rotate.
Furthermore, the high-efficiency multi-head numerical control milling machine of the utility model also comprises two groups of guide rail pairs 12; the guide rails of the two sets of guide rail pairs 12 are arranged in parallel along the vertical direction and are respectively screwed at the two side end edges of the upright post 4; the end edges of the two sides of the bracket 6 are respectively in threaded connection with the sliding blocks of the guide rail pair 12; because six have been set up on the support 6 milling cutter 11, whole weight improves more, and a plurality of milling cutter 11 is high-speed rotatory when milling the operation simultaneously the work piece can produce great reaction force to support 6, the utility model relates to a high-efficient bull numerically controlled fraise machine will support 6 is through two sets of the vice 12 slidable mounting of guide rails is in structure on the stand 4 guarantees promptly support 6 gliding precision has still guaranteed milling cutter 11 during operation's rigidity of support 6.
Furthermore, the six mechanical spindles 7 are arranged in two rows and three columns; the three mechanical main shafts 7 in the first row are a first mechanical main shaft 14, a second mechanical main shaft 15 and a third mechanical main shaft 16 from left to right in sequence; the three mechanical spindles 7 in the second row are a fourth mechanical spindle 17, a fifth mechanical spindle 18 and a sixth mechanical spindle 19 in sequence from the right. Wherein: a first driving synchronous pulley 20 is sleeved on an output shaft of the motor 13, a first driven synchronous pulley 21, a second driven synchronous pulley 22 and a third driven synchronous pulley 23 are respectively sleeved on shaft sleeves 8 of the first mechanical main shaft 14, the fifth mechanical main shaft 18 and the third mechanical main shaft 16, and the first driving synchronous pulley 20, the first driven synchronous pulley 21, the second driven synchronous pulley 22 and the third driven synchronous pulley 23 are in power connection through a first synchronous belt 24, so that the motor can simultaneously drive the first mechanical main shaft 14, the fifth mechanical main shaft 18 and the third mechanical main shaft 16 to synchronously rotate. Further, the method comprises the following steps: a second driving synchronous pulley 25 is further sleeved on the shaft sleeve 8 of the first mechanical main shaft 14, a fourth driven synchronous pulley 26 is sleeved on the shaft sleeve 8 of the fourth mechanical main shaft 17, and the second driving synchronous pulley 25 is in power connection with the fourth driven synchronous pulley 26 through a second synchronous belt 27, so that the function that the motor 13 indirectly drives the fourth mechanical main shaft 17 to rotate is realized; a third driving synchronous pulley 28 is further sleeved on the shaft sleeve 8 of the fifth mechanical main shaft 18, a fifth driven synchronous pulley 29 is further sleeved on the shaft sleeve 8 of the second mechanical main shaft 15, and the third driving synchronous pulley 28 and the fifth driven synchronous pulley 29 are in power connection through a third synchronous belt 30, so that the function that the motor 13 drives the second mechanical main shaft 15 to rotate is realized; a fourth driving synchronous pulley 31 is further sleeved on the shaft sleeve 8 of the third mechanical main shaft 16, a sixth driven synchronous pulley 32 is further sleeved on the shaft sleeve 8 of the sixth mechanical main shaft 19, and the fourth driving synchronous pulley 31 and the sixth driven synchronous pulley 32 are in power connection through a fourth synchronous belt 33, so that the function that the motor 13 drives the sixth mechanical main shaft 19 to rotate is achieved. In summary, the motor 13 drives six mechanical spindles 7 to rotate simultaneously in a belt wheel transmission manner. Here, it should be noted that: if the same synchronous belt is adopted to drive six mechanical spindles 7 simultaneously, the wrap angle between the synchronous belt and the corresponding synchronous belt wheels on the six mechanical spindles 7 is too small, that is, the sum of the friction force generated between the contact surfaces of the synchronous belt and the synchronous belt wheels is smaller, so that the transmission torque is influenced, and the rotating speed of the mechanical spindles 7 is extremely high during milling operation, so that the situation that the mechanical spindles 7 slip is easily caused by the transmission structure; compared with the utility model discloses a multiunit hold-in range and synchronous pulley complex transmission structure have increased the cornerite between each group's hold-in range and the synchronous pulley that corresponds, have reduced the possibility that mechanical main shaft 7 skidded.
Further, the workpiece fixture 3 comprises a bottom plate 33 and six groups of clamping mechanisms 34; the cross sliding table 2 drives the bottom plate 33 to move, and six groups of clamping mechanisms 34 respectively corresponding to the six mechanical spindles 7 are arranged on the bottom plate 33; each of the clamping mechanisms 34 includes a first clamping plate 35, a second clamping plate 36, and a cylinder 37; the first clamping plate 35 is fixedly connected with the bottom plate 33; the air cylinder 37 is connected to an external air source and screwed to the support plates extending from two sides of the bottom plate 33, and a piston rod of the air cylinder 37 is connected to the second clamping plate 36 matched with the first clamping plate 35. When in work: firstly, the first clamping plate 35 and the second clamping plate 36 are in an open state, and a workpiece to be milled is transplanted between the first clamping plate 35 and the second clamping plate 36 by an externally-connected feeding and discharging manipulator; then, the air cylinder 37 drives the second clamping plate 36 to move toward the first clamping plate 35, so that the first clamping plate 35 and the second clamping plate 36 clamp the workpiece; on the contrary, when the air cylinder 27 drives the second clamping plate 36 to move away from the first clamping plate 35, the clamping mechanism 34 releases the workpiece, so that the workpiece which finishes the milling operation can be transplanted to the next station of the production line by the loading and unloading manipulator.
Further, the cross sliding table 2 comprises a Y-axis sliding table 38 and an X-axis sliding table 39, the Y-axis sliding table 38 is arranged on the base frame 1, the Y-axis sliding table 38 drives the X-axis sliding table 39 to move longitudinally, and the X-axis sliding table drives the bottom plate 33 of the workpiece fixture 3 to move transversely. Here, it should be noted that: the Y-axis slipway 38 and the X-axis slipway 39 can be any one of linear slipway modules in the prior art, including but not limited to synchronous belt slipways, cylinder slipways and ball screw slipways; in the present embodiment: the Y-axis sliding table 38 and the X-axis sliding table 39 are ball screw sliding tables, a case of the Y-axis sliding table 38 is mounted on the underframe 1, a case of the X-axis sliding table 39 is mounted on the sliding table of the Y-axis sliding table 38, and the bottom plate 33 of the workpiece jig 3 is mounted on the sliding table of the X-axis sliding table 39; therefore, the Y-axis sliding table 38 can drive the X-axis sliding table 39 to move longitudinally in synchronization with the workpiece, and the X-axis sliding table 39 can drive the workpiece to move transversely, thereby realizing two-axis movement of the workpiece in the horizontal plane.
The working principle of the utility model is explained below with the following working procedures:
firstly, an externally-connected manipulator or an operator carries out feeding operation on the six clamping mechanisms 34 on the workpiece fixture 3; then, the motor 13 drives six mechanical spindles 7 to rotate simultaneously; then, the cross sliding table 2 and the Z-axis sliding table 5 are in three-axis linkage, and milling operation between the six milling cutters 11 and corresponding workpieces is completed; and finally, the cross sliding table 2 and the Z-axis sliding table 5 are reset, the motor 13 stops working, and the workpiece which is milled on the workpiece jig 3 is subjected to blanking operation by an external manipulator or an operator.
The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims (7)

1. A high-efficiency multi-head numerical control milling machine is characterized by comprising an underframe, a cross sliding table, a workpiece jig, an upright post and a Z-axis sliding table; the cross sliding table is arranged on the bottom frame and drives the workpiece jig to move in the horizontal plane; the upright post is positioned beside the cross sliding table and is arranged on the bottom frame; the Z-axis sliding table is arranged on the upright column and drives the bracket which is slidably arranged on the upright column to slide up and down; a plurality of mechanical spindles are rotatably mounted on the support, and each mechanical spindle is provided with a milling cutter matched with the workpiece fixture; and the bracket is also provided with a motor for driving all the mechanical main shafts to rotate.
2. A high-efficiency multi-head numerically controlled milling machine according to claim 1, further comprising a guide rail pair, wherein a guide rail of the guide rail pair is connected with the column, and a slide block of the guide rail pair is connected with the bracket.
3. A high-efficiency multi-head numerically controlled milling machine according to claim 1, wherein six of said machine spindles are arranged in two rows and three columns; the three mechanical main shafts in the first row are sequentially a first mechanical main shaft, a second mechanical main shaft and a third mechanical main shaft from left to right; the three mechanical main shafts in the second row are a fourth mechanical main shaft, a fifth mechanical main shaft and a sixth mechanical main shaft in sequence from left to right; the motor drives the first mechanical main shaft, the fifth mechanical main shaft and the third mechanical main shaft to rotate through belt wheel transmission; the first mechanical main shaft drives the fourth mechanical main shaft to rotate through belt wheel transmission; the fifth mechanical main shaft drives the second mechanical main shaft to rotate through belt wheel transmission; and the third mechanical main shaft drives the sixth mechanical main shaft to rotate through belt wheel transmission.
4. A high-efficiency multi-head numerically controlled milling machine according to claim 3, wherein said workpiece fixture comprises a base plate and six sets of clamping mechanisms; the cross sliding table drives the bottom plate to move; six groups of clamping mechanisms respectively corresponding to the six mechanical spindles are arranged on the bottom plate; each clamping mechanism comprises a first clamping plate, a second clamping plate and a cylinder; the first clamping plate is fixedly connected with the bottom plate; the cylinder is arranged on the bottom plate, and a piston rod of the cylinder is connected with the second clamping plate matched with the first clamping plate.
5. The efficient multi-head numerically controlled milling machine according to claim 4, wherein the cross slide table comprises a Y-axis slide table and an X-axis slide table, the Y-axis slide table is arranged on the base frame, the Y-axis slide table drives the X-axis slide table to move longitudinally, and the X-axis slide table drives the base plate to move transversely.
6. The efficient multi-head numerical control milling machine according to claim 5, wherein the Z-axis sliding table is a ball screw sliding table or a synchronous belt sliding table; or the Y-axis sliding table is a ball screw sliding table or a synchronous belt sliding table; or the X-axis sliding table is a ball screw sliding table or a synchronous belt sliding table.
7. An efficient multi-head numerically controlled milling machine according to claim 6, wherein said mechanical spindle comprises a sleeve, a drawbar and a collet chuck; the shaft sleeve is rotatably arranged on the support, the pull rod is arranged in the through hole of the shaft sleeve, and the bottom end of the pull rod is connected with the collet chuck.
CN202020333952.6U 2020-03-17 2020-03-17 High-efficient bull numerically controlled fraise machine Active CN212217200U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020333952.6U CN212217200U (en) 2020-03-17 2020-03-17 High-efficient bull numerically controlled fraise machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020333952.6U CN212217200U (en) 2020-03-17 2020-03-17 High-efficient bull numerically controlled fraise machine

Publications (1)

Publication Number Publication Date
CN212217200U true CN212217200U (en) 2020-12-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113059220A (en) * 2021-05-19 2021-07-02 李淑杰 Intelligent industrial manufacturing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113059220A (en) * 2021-05-19 2021-07-02 李淑杰 Intelligent industrial manufacturing system
CN113059220B (en) * 2021-05-19 2022-05-24 潍坊恩源信息科技有限公司 Intelligent industrial manufacturing system

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