Carving machine with Y-axis double lead screws

Abstract

The utility model discloses a Y-axis double-lead-screw carving machine, and relates to the technical field of carving machining equipment. The machine comprises a rack, a vacuum adsorption platform is arranged on the rack, two Y-axis lead screw linear modules are arranged on the portions, located on the two sides of the vacuum adsorption platform, of the rack respectively, a cast iron cross beam is connected to the two Y-axis lead screw linear modules, an X-axis lead screw linear module is arranged on the cast iron cross beam, and a machine head is connected to the X-axis lead screw linear module. A Z-axis lead screw linear module is arranged on the machine head, a tool changing main shaft is connected to the Z-axis lead screw linear module, and a tool magazine assembly is arranged at the position, located at the rear end of the vacuum adsorption platform, of the rack. The Y-axis double-lead-screw carving machine is high in transmission efficiency, large in loading capacity, high in machining precision and capable of achieving automatic tool changing operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engraving processing equipment, especially relates to a Y axis double wire bar's engraving machine. BACKGROUND

[0002] The engraving machine is a kind of mechanical equipment for engraving various materials, and through the accurate control and high-speed rotation of cutter, it can create exquisite patterns, characters or three-dimensional modeling on wood, stone, metal, plastic and other materials.The existing engraving machine has the following shortcomings:(1) with the development of engraving technology, the transmission structure of some engraving machines cannot meet the existing engraving processing requirements, some engraving machines adopt gear and rack structure for transmission, but the machining precision and installation precision of gear and rack transmission structure are general, and the transmission precision is low;The Y axis single wire bar structure of some engraving machines is driven and carried, but the driving and carrying capacity of Y axis single wire bar structure is small, and it cannot meet the requirements of stability and precision when processing large workpieces;(2) with the increasing types of cutters required by engraving processing, the cutters often need to be replaced during the processing of engraving machine, some engraving machines need to stop the machine tool and then replace the cutter manually during processing, which leads to low processing efficiency. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem to provide a kind of Y axis double wire bar's engraving machine, transmission efficiency is high, load capacity is big, processing precision is high, can realize automatic tool changing operation.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A kind of Y axis double wire bar's engraving machine, including rack, vacuum adsorption platform is equipped on the rack, vacuum adsorption platform is located on the two sides of the rack and is equipped with a group of Y axis screw rod linear module, two groups of Y axis screw rod linear module are connected with a cast iron crossbeam, X axis screw rod linear module is equipped on the cast iron crossbeam, machine head is connected on X axis screw rod linear module, Z axis screw rod linear module is equipped on the machine head, tool changing main shaft is connected on Z axis screw rod linear module, tool magazine assembly is equipped on the rear end of vacuum adsorption platform of the rack.

[0006] Further, the vacuum adsorption platform includes platform base body and vacuum system, a plurality of vacuum adsorption holes are arranged on the platform base body, the vacuum system includes vacuum pump and vacuum pipeline, the vacuum pump is communicated with the vacuum adsorption hole by the vacuum pipeline.

[0007] Further, the tool magazine assembly comprises a tool magazine frame, a tool magazine box, a plurality of tool holders and a plurality of tool shanks, the tool magazine frame is fixedly connected to the rack, air cylinders and sliding blocks are mounted on the two sides of the tool magazine frame, the tool magazine box is arranged on the tool magazine frame and is fixedly connected to the piston rods of the air cylinders, guide rails are mounted on the two sides of the tool magazine box along the Y-axis direction, the guide rails are slidably connected to the sliding blocks, the air cylinders are used for driving the tool magazine box to move along the Y-axis direction, the plurality of tool holders are equidistantly arranged on the tool magazine frame, and the tool shanks are arranged on the tool holders.

[0008] Further, the cast iron cross beam is of a hollow structure and is internally provided with a plurality of reinforcing ribs, and a plurality of weight-avoiding holes are further arranged on the cast iron cross beam.

[0009] Further, the two groups of Y-axis linear modules each comprise a Y-axis motor, a Y-axis ball screw pair, a Y-axis guide rail and a Y-axis sliding block, the Y-axis ball screw pair and the Y-axis guide rail are mounted on the rack, the screw rod of the Y-axis ball screw pair is in transmission connection with the Y-axis motor, the Y-axis sliding block is mounted on the bottom of the cast iron cross beam and is slidably connected to the Y-axis guide rail, and the bottom of the cast iron cross beam is provided with a first nut seat fixedly connected to the nut of the Y-axis ball screw pair.

[0010] Further, the X-axis linear module comprises an X-axis motor, an X-axis ball screw pair, an X-axis guide rail and an X-axis sliding block, the X-axis ball screw pair and the X-axis guide rail are mounted on the cast iron cross beam, the screw rod of the X-axis ball screw pair is in transmission connection with the X-axis motor, the X-axis sliding block is mounted on the back of the machine head and is slidably connected to the X-axis guide rail, and the back of the machine head is provided with a second nut seat fixedly connected to the nut of the X-axis ball screw pair.

[0011] Further, the Z-axis linear module comprises a Z-axis motor, a Z-axis ball screw pair, a Z-axis guide rail and a Z-axis sliding block, the Z-axis ball screw pair and the Z-axis guide rail are mounted on the machine head, the screw rod of the Z-axis ball screw pair is in transmission connection with the Z-axis motor, the Z-axis sliding block is slidably connected to the Z-axis guide rail, a mounting plate is fixedly connected to the Z-axis sliding block, a spindle clamp is fixedly connected to the mounting plate, and the tool changing spindle is arranged on the spindle clamp.

[0012] Further, the Y-axis linear module and the X-axis linear module are each provided with an organ protection cover.

[0013] Further, the machine head is provided with a machine head protection cover, and the tool changing spindle is provided with a spindle protection cover.

[0014] Compared with the prior art, the tool changing device has at least the following beneficial effects:

[0015] The utility model discloses a X, Y, Z axle direction sets up X axle screw rod linear module, Y axle screw rod linear module and Z axle screw rod linear module respectively, and X axle screw rod linear module, Y axle screw rod linear module and Z axle screw rod linear module are all screw rod drive structure, has high precision, high rigidity, transmission efficiency is high, and the advantage such as big load capacity, can realize accurate position positioning and repeat positioning, make cast iron crossbeam, head and tool changing main shaft do high precision linear motion, can satisfy the high precision engraving processing of large workpiece, Y axle screw rod linear module sets up two groups, and distributes in the both sides of vacuum adsorption platform, can provide even, balanced support and driving force for cast iron crossbeam, when the machine tool carries out high -speed engraving or carries out large amplitude crossbeam movement, cast iron crossbeam is not easy to appear and incline etc. Unstable phenomenon, guarantee the engraving quality, tool magazine assembly and tool changing main shaft cooperation can realize automatic tool changing. BRIEF DESCRIPTION OF DRAWINGS

[0016] One or more embodiments of the utility model will now be described, by way of example only, with reference to the accompanying drawings:

[0017] Fig. 1 It is the structural schematic diagram of the embodiment of the application;

[0018] Fig. 2 It is the structural schematic diagram of the cast iron crossbeam of the embodiment of the application;

[0019] Fig. 3 It is the structural schematic diagram of the tool magazine assembly of the embodiment of the application;

[0020] Fig. 4 It is the structural schematic diagram of another view of the tool magazine assembly of the embodiment of the application;

[0021] Fig. 5 It is the structural schematic diagram of the embodiment of the application after installing organ protective cover, head protective cover and main shaft protective cover.

[0022] Marked number in the drawing is: 1, frame;2, vacuum adsorption platform;21, platform base body;211, vacuum adsorption hole;3, Y axle screw rod linear module;31, Y axle motor;32, Y axle ball screw pair;33, Y axle guide rail;34, Y axle sliding block;4, cast iron crossbeam;41, first nut seat;42, heavy avoiding hole;5, X axle screw rod linear module;51, X axle motor;52, X axle ball screw pair;53, X axle guide rail;54, X axle sliding block;6, head;7, Z axle screw rod linear module;71, Z axle motor;72, Z axle ball screw pair;73, Z axle guide rail;74, Z axle sliding block;8, tool changing main shaft;9, tool magazine assembly;91, tool magazine frame;911, pneumatic cylinder;912, sliding block;92, tool magazine box;921, guide rail;93, tool holder;94, tool handle;10, mounting plate;20, main shaft clamp;30, organ protective cover;40, head protective cover;50, main shaft protective cover. DETAILED DESCRIPTION

[0023] The utility model will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood that the present application can be realized in various forms, and should not be understood as being limited to the embodiments described herein. The embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0025] As Figs. 1-5As shown, the Y-axis double-screw-rod engraving machine provided by the embodiment of the application comprises a rack 1, a vacuum adsorption platform 2 is arranged on the rack 1, a group of Y-axis screw rod linear modules 3 are arranged on the rack 1 at both sides of the vacuum adsorption platform 2, a cast iron cross beam 4 is connected to the two groups of Y-axis screw rod linear modules 3, an X-axis screw rod linear module 5 is arranged on the cast iron cross beam 4, a machine head 6 is connected to the X-axis screw rod linear module 5, a Z-axis screw rod linear module 7 is arranged on the machine head 6, a tool changing spindle 8 is connected to the Z-axis screw rod linear module 7, the cast iron cross beam 4 has good mechanical properties, high strength and rigidity, good vibration resistance, and is easy to be cast into a shape, a tool magazine assembly 9 is arranged at the rear end of the vacuum adsorption platform 2 on the rack 1, and the tool magazine assembly 9 can realize automatic tool changing in cooperation with the tool changing spindle 8.

[0026] The vacuum adsorption platform 2 comprises a platform base body 21 and a vacuum system, a plurality of vacuum adsorption holes 211 are arranged on the platform base body 21, the vacuum system comprises a vacuum pump and a vacuum pipeline, and the vacuum pump is in communication with the vacuum adsorption holes 211 through the vacuum pipeline. The workpiece is placed on the vacuum adsorption platform 2, a negative pressure is generated through the vacuum pump, and the workpiece is tightly adsorbed on the surface of the platform base body 21, so that various shapes and materials of workpieces can be effectively fixed, especially for thin, easily deformed or irregular workpieces such as thin plates, plastic parts, glass and the like, the problem that the workpiece is displaced or shaken due to the difficulty of the traditional clamp in stably fixing the workpiece is eliminated.

[0027] The tool magazine assembly 9 comprises a tool magazine frame 91, a tool magazine box 92, a plurality of tool holders 93 and a plurality of tool shanks 94. The tool magazine frame 91 is fixedly connected to the machine frame 1. A pneumatic cylinder 911 and a sliding block 912 are mounted on each side of the tool magazine frame 91. The tool magazine box 92 is arranged on the tool magazine frame 91 and is fixedly connected to the piston rod of the pneumatic cylinder 911 on each side. Guide rails 921 are mounted on each side of the tool magazine box 92 along the Y-axis direction. The guide rails 921 are slidably connected to the sliding blocks 912. The plurality of tool holders 93 are equidistantly arranged on the tool magazine frame 91. The tool shanks 94 of various models can be sequentially arranged on the plurality of tool holders 93. It should be noted that when the tool magazine assembly 9 is not in use, the tool magazine box 92 is used to cover the tool magazine frame 91 to prevent dust, chips and other impurities from contaminating the tool. When the machine needs to replace the tool of different models, the pneumatic cylinder 911 is used to drive the tool magazine box 92 to move backward along the Y-axis to cancel the shielding of the tool magazine frame 91. At this time, the two groups of Y-axis linear guide rails 3 simultaneously drive the cast iron cross beam 4 to move the tool changing spindle 8 to the rear end of the vacuum adsorption platform 2. The X-axis linear guide rail 5 can drive the machine head 6 to move the tool changing spindle 8 left and right along the X-axis. The Z-axis linear guide rail 7 can drive the tool changing spindle 8 to move up and down along the Z-axis. First, the tool changing spindle 8 moves the old tool to the idle tool holder 93 position of the tool magazine frame 91. Then the tool changing spindle 8 moves downward, so that the tool holder 93 can clamp the old tool. The clamping mechanism in the tool changing spindle 8 releases the old tool. The tool changing spindle 8 moves to the required tool position. The clamping mechanism in the tool changing spindle 8 clamps the new tool. The tool holder 93 releases the tool head, thereby realizing automatic tool changing operation. Compared with the manual tool changing operation mode, the machining efficiency can be improved. The tool magazine assembly 9 is a straight-line tool magazine, which has a simple structure and low tool magazine cost.

[0028] The cast iron cross beam 4 has a hollow structure and is internally provided with a plurality of reinforcing ribs. The cast iron cross beam 4 is further provided with a plurality of weight-avoiding holes 42, so as to reduce the weight of the cast iron cross beam 4, make it more lightweight during operation, reduce the burden of the driving device of the Y-axis linear guide rail 3, and ensure the rigidity of the overall structure.

[0029] The two groups of Y-axis linear module 3 each include a Y-axis motor 31, a Y-axis ball screw pair 32, a Y-axis guide rail 33 and a Y-axis sliding block 34, the Y-axis ball screw pair 32 and the Y-axis guide rail 33 are installed on the rack 1, the screw rod of the Y-axis ball screw pair 32 is in transmission connection with the Y-axis motor 31, the Y-axis sliding block 34 is installed at the bottom of the cast iron beam 4 and is in sliding connection with the Y-axis guide rail 33, and the bottom of the cast iron beam 4 is provided with a first nut seat 41 fixedly connected with the nut of the Y-axis ball screw pair 32; the X-axis linear module 5 includes an X-axis motor 51, an X-axis ball screw pair 52, an X-axis guide rail 53 and an X-axis sliding block 54, the X-axis ball screw pair 52 and the X-axis guide rail 53 are installed on the cast iron beam 4, the screw rod of the X-axis ball screw pair 52 is in transmission connection with the X-axis motor 51, the X-axis sliding block 54 is installed at the back of the machine head 6 and is in sliding connection with the X-axis guide rail 53, and the back of the machine head 6 is provided with a second nut seat fixedly connected with the nut of the X-axis ball screw pair 52; the Z-axis linear module 7 includes a Z-axis motor 71, a Z-axis ball screw pair 72, a Z-axis guide rail 73 and a Z-axis sliding block 74, the Z-axis ball screw pair 72 and the Z-axis guide rail 73 are installed on the machine head 6, the screw rod of the Z-axis ball screw pair 72 is in transmission connection with the Z-axis motor 71, the Z-axis sliding block 74 is in sliding connection with the Z-axis guide rail 73, and a mounting plate 10 is fixedly connected to the Z-axis sliding block 74, a spindle clamp 20 is fixedly connected to the mounting plate 10, and the tool changing spindle 8 is arranged on the spindle clamp 20.

[0030] The machine tool is provided with the X-axis linear module 5, the Y-axis linear module 3 and the Z-axis linear module 7 in the X, Y and Z axial directions respectively, the X-axis linear module 5, the Y-axis linear module 3 and the Z-axis linear module 7 are all ball screw pair transmission structures, have the advantages of high precision, high rigidity, high transmission efficiency and large load capacity, can realize accurate position positioning and repeated positioning, make the cast iron beam 4, the machine head 6 and the tool changing spindle 8 perform high-precision linear motion, and can meet the high-precision engraving processing. The Y-axis linear module 3 is provided with two groups and is distributed on the two sides of the vacuum adsorption platform 2, can provide uniform and balanced support and driving force for the cast iron beam 4, the cast iron beam 4 is not prone to shaking, tilting and other unstable phenomena when the machine tool performs high-speed engraving or large-amplitude beam movement, and the engraving quality is ensured; and the two groups of Y-axis linear modules 3 can cooperate and calibrate each other, can more accurately control the moving position of the cast iron beam 4 in the horizontal direction, compensate and correct errors through reasonable design and control algorithm, effectively reduce the cumulative error, and ensure the precision stability of the engraving machine in long-term operation.

[0031] The Y-axis screw linear module 3 and the X-axis screw linear module 5 are both provided with an organ protective cover 30, the organ protective cover 30 can prevent dust, cutting chips and other sundries from entering the linear module components, effectively block the cooling liquid and lubricating oil from permeating into the linear module components, at the same time, avoid the physical damage of the screw and other components, prolong the service life; the machine head 6 is provided with a machine head protective cover 40, and the tool changing spindle 8 is provided with a spindle protective cover 50, which also has a protective effect.

[0032] It should be understood that all the above embodiments are exemplary but not restrictive, any modification, equivalent change and modification made by the skilled person in the light of the concept of the present application to the above described specific embodiments still belong to the scope of the technical scheme of the present application.

Claims

1. A Y-axis dual-wire bar engraver comprising a frame, characterized by: The rack is provided with a vacuum adsorption platform, and a group of Y-axis screw linear modules are arranged on the rack at both sides of the vacuum adsorption platform.

2. The Y-axis dual-screw-bar engraver according to claim 1, characterized in that: The tool magazine assembly comprises a tool magazine frame, a tool magazine box, a plurality of tool holders and a plurality of tool shanks.

3. The Y-axis dual-screw-bar engraver according to claim 1, characterized in that: The vacuum adsorption platform comprises a platform base body and a vacuum system.

4. The Y-axis dual-screw-bar engraver according to claim 1, wherein: The cast iron beam is of a hollow structure and is internally provided with a plurality of reinforcing ribs.

5. The Y-axis dual-screw-bar engraver according to claim 1, wherein: The X-axis screw linear module comprises an X-axis motor, an X-axis ball screw pair, an X-axis guide rail and an X-axis sliding block.

6. The Y-axis dual-screw-bar engraver according to claim 1, wherein: The Z-axis screw linear module comprises a Z-axis motor, a Z-axis ball screw pair, a Z-axis guide rail and a Z-axis sliding block.

7. The Y-axis dual-screw-bar engraver according to claim 1, wherein: The Y-axis screw linear module and the X-axis screw linear module are both provided with an organ protection cover.

8. The Y-axis dual-screw-bar engraver according to claim 1, wherein: The tool head is provided with a tool head protection cover, and the tool changing spindle is provided with a spindle protection cover.

9. The Y-axis dual-screw-bar engraver according to claim 1, wherein: ​

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