Five-axis double-head cutting machine

Abstract

The five-axis double-head cutting machine comprises a base assembly, a portal frame assembly, a moving assembly, a workpiece mounting assembly, a left tool changing assembly and a right tool changing assembly are installed on the base assembly, the workpiece mounting assembly is installed on the moving assembly and slides on the moving assembly, and the portal frame assembly is located on the rear side of the workpiece mounting assembly; a cutting assembly is slidably mounted on the portal frame assembly, and the left tool changing assembly and the right tool changing assembly are located on the two sides of the workpiece mounting assembly correspondingly and used for replacing tools of the cutting assembly. A five-axis adjusting mode is adopted, automatic tool replacement is achieved, the machining precision is improved, and the production efficiency is also improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a cutting machine for cutting automobile chassis parts or similar products, in particular to a five-axis double-head cutting saw, belonging to the technical field of casting equipment. BACKGROUND

[0002] Cutting machines are highly specialized CNC machines suitable for cutting operations on materials with complex shapes and high precision requirements. Traditional two-dimensional or three-axis cutting machines can only operate in a plane, and for workpieces with complex geometrical shapes, multiple clamping and positioning are often required, which not only increases the processing time and cost, but also may cause cumulative errors. Moreover, the design of a single cutting head limits production efficiency, especially when dealing with large quantities or large workpieces, a single cutting head is difficult to meet the needs of rapid production. Especially with the intensification of market competition, enterprises urgently need to improve production efficiency to shorten the product launch time. This means not only to speed up the cutting speed, but also to reduce the non-production time (such as changing tools, adjusting parameters, etc.). Traditional cutting machines are difficult to meet these high standards, especially when dealing with curved surfaces or complex structures.

[0003] Therefore, whether it is the demand for improving machining accuracy or the need for improving production efficiency, cutting equipment needs to have good flexibility and wide adaptability. The present application arises therefrom. SUMMARY

[0004] In view of the above technical problems of the prior art, the purpose of the present application is to provide a five-axis double-head cutting machine, which adopts a five-axis adjustment mode and realizes automatic tool changing, not only improving machining accuracy, but also improving production efficiency.

[0005] To achieve the above-mentioned purpose, the present application is realized by the following technical scheme: A five-axis double-head cutting machine comprises a base assembly, a gantry assembly, a moving assembly, a workpiece mounting assembly, a left tool changing assembly and a right tool changing assembly mounted on the base assembly, the workpiece mounting assembly is mounted on and slides on the moving assembly, the gantry assembly is located at the rear side of the workpiece mounting assembly, and a cutting assembly is slidingly mounted on the gantry assembly, the left tool changing assembly and the right tool changing assembly are respectively located at the two sides of the workpiece mounting assembly, and the left tool changing assembly and the right tool changing assembly are used for changing the tool of the cutting assembly; the cutting assembly comprises a transverse tool driving assembly and a longitudinal tool driving assembly, the longitudinal tool driving assembly is mounted on a longitudinal driving assembly, the longitudinal driving assembly comprises a longitudinal driving motor, the output end of the longitudinal driving motor is provided with a longitudinal ball screw, the two sides of the longitudinal ball screw are provided with longitudinal linear guides, the longitudinal linear guides are provided with longitudinal sliding blocks, and the longitudinal ball screw is provided with a longitudinal ball screw nut; the longitudinal tool driving assembly is connected with the longitudinal sliding block and the longitudinal ball screw nut; the workpiece mounting assembly comprises a sliding bottom plate, the sliding bottom plate is mounted on the moving assembly, and the sliding bottom plate is provided with a rocking member connected with a rocking motor; the rocking member rocks under the driving of the rocking motor, and a workpiece mounting table plate is arranged above the rocking member; the workpiece mounting table plate is connected with a table plate driving motor, and the workpiece mounting table plate rotates under the driving of the table plate driving motor.

[0006] The gantry assembly comprises an X-axis bottom plate connected between two upright columns, the upright columns are provided with Y-axis ball screws, and the two sides of the Y-axis ball screws are provided with Y-axis linear guides; the X-axis bottom plate is provided with an X-axis ball screw, the two sides of the X-axis ball screw are provided with X-axis linear guides, the cutting assembly is arranged on the X-axis linear guides and slides along the X-axis linear guides, and the X-axis bottom plate is arranged on the Y-axis linear guides and ascends and descends along the Y-axis linear guides.

[0007] The left tool changing assembly comprises a left tool changing guide, the left tool changing guide is provided with a left tool changing seat driven by a left tool changing cylinder, the left tool changing seat is provided with a plurality of left tool placing racks from top to bottom, the left tool placing racks are provided with left tool handles with left blades, and the end portions of the left tool handles are provided with left pull pins; when the tool is changed, the left pull pins enter the transverse blade driving assembly.

[0008] The left tool changing seat is provided with a left tool changing cylinder connecting seat, the left tool changing cylinder connecting seat is provided with a left tool changing quick connecting plug, and the left tool changing quick connecting plug is connected with the output shaft of the left tool changing cylinder.

[0009] The right tool changing assembly comprises a right tool changing guide rail, a right tool changing seat driven by a right tool changing cylinder is arranged on the right tool changing guide rail, a plurality of right tool placing racks are arranged on the right tool changing seat from left to right, a right tool handle with a right blade is arranged on the right tool placing rack, a right pull pin is arranged at the end of the right tool handle, and the right pull pin enters the longitudinal blade driving assembly during tool changing.

[0010] A right tool changing cylinder connecting seat is arranged on the right tool changing seat, the right tool changing cylinder connecting seat is provided with a right tool changing quick connecting plug, and the right tool changing quick connecting plug is connected with the output shaft of the right tool changing cylinder.

[0011] The moving assembly is two, and the two moving assemblies are installed in the base assembly in parallel.

[0012] The moving assembly comprises a moving screw rod connected with a screw rod driving motor, a moving screw rod nut is arranged on the moving screw rod, moving slide rails are arranged on the two sides of the moving screw rod, and the two ends of the sliding bottom plate are arranged on the moving slide rails and connected with the moving screw rod nut.

[0013] The five-axis double-head cutting machine has the following beneficial effects: 1. The cutting assembly in the application can realize up-down lifting and left-right movement on the gantry assembly, the cutting assembly itself realizes longitudinal lifting, the workpiece mounting assembly realizes front-back swinging and rotation at any angle, the cutting position can be accurately adjusted, and the cutting precision is improved.

[0014] 2. The cutting assembly has a horizontal tool driving assembly and a longitudinal tool driving assembly, and the double-head tool further improves the cutting precision and improves the cutting efficiency.

[0015] 3. The application is provided with a left tool changing assembly and a right tool changing assembly, the position of the left pull pin in the left tool changing assembly corresponds to the horizontal tool mounting port in the horizontal tool assembly, the position of the right pull pin in the right tool changing assembly corresponds to the longitudinal tool mounting port in the longitudinal tool assembly, and the left tool changing assembly and the right tool changing assembly are respectively used for replacing corresponding tools, and the different positions can be cut to replace the tools, which is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the overall structure in the application; Figure 2 It is a schematic view of the base assembly in the application; Figure 3 It is a schematic view of the moving assembly in the application; Figure 4 It is a schematic view of the gantry assembly in the application; Figure 5 Structure diagram of the left tool changing assembly in the application; Figure 6 Structure diagram of the right tool changing assembly in the application; Figure 7 Structure diagram of the back of the cutting assembly in the application; Figure 8 Structure diagram of the partial section of the cutting assembly in the application; Figure 9 Structure diagram of the cutting assembly in the application; Figure 10 Structure diagram of the workpiece mounting assembly in the application; Wherein, 1 is a screw rod driving motor, 2 is a moving screw rod, 3 is a moving screw rod nut, 4 is a moving slide rail, 5 is a sliding bottom plate, 6 is a rocking motor, 7 is a rocking piece, 8 is a work mounting table plate, 9 is a table plate driving motor, 10 is a stand column, 11 is an X-axis bottom plate, 12 is a Y-axis ball screw, 13 is a Y-axis linear guide rail, 14 is a Y-axis sliding block, 15 is a Y-axis servo motor, 16 is a Y-axis limit block, 17 is an X-axis ball screw, 18 is an X-axis linear guide rail, 19 is a cutting moving seat, 20 is an X-axis ball screw nut, 21 is an X-axis limit block, 22 is an X-axis sliding block, 23 is a longitudinal driving motor, 24 is a longitudinal ball screw, 25 is a longitudinal ball screw nut, 26 is a longitudinal sliding block, 27 is a transverse tool mounting port, 28 is a transverse tool driving shaft, 29 is a synchronous wheel, 30 is a synchronous belt, 31 is a driving wheel, 32 is a driving motor, 33 is a longitudinal tool mounting port, 34 is a longitudinal driving motor, 35 is a longitudinal tool driving shaft, 36 is a left tool changing guide rail, 37 is a left tool changing cylinder, 38 is a left tool changing seat, 39 is a left tool changing cylinder connecting seat, 40 is a left tool changing quick connector, 41 is a left tool placing seat, 42 is a left tool handle, 43 is a left tool blade, 44 is a left pull pin, 45 is a right tool changing guide rail, 46 is a right tool changing cylinder, 47 is a right tool changing seat, 48 is a right tool changing cylinder connecting seat, 49 is a right tool changing quick connector, 50 is a right tool placing rack, 51 is a right tool blade, 52 is a right tool handle, 53 is a right pull pin, 54 is an exhaust throttle valve, 55 is a drag chain, 56 is a protective plate, 57 is a chip removal machine, 58 is an operation box, 59 is a longitudinal linear guide rail, and 60 is an X-axis driving motor. DETAILED DESCRIPTION

[0017] The application will be further described in conjunction with specific embodiments, but the protection scope of the application is not limited thereto.

[0018] As Figures 1-10As shown, the five-axis double-head cutting machine of the present application comprises a base assembly, a gantry assembly, a moving assembly, a workpiece mounting assembly, a left tool changing assembly and a right tool changing assembly are mounted on the base assembly, the cutting assembly is mounted on the gantry assembly, and the left tool changing assembly and the right tool changing assembly are located on both sides of the workpiece mounting assembly for replacing the tool on the cutting assembly.

[0019] The moving assembly is 2, and the two moving assemblies are installed in parallel in the base assembly. Each moving assembly comprises a moving screw rod 2 connected with a screw rod driving motor 1, a moving screw rod nut 3 is arranged on the moving screw rod 2, and moving slide rails 4 are arranged on both sides of the moving screw rod 2. The workpiece mounting assembly comprises a sliding bottom plate 5, both ends of the sliding bottom plate 5 are arranged on the moving slide rails 4 and connected with the moving screw rod nut 3. When the screw rod driving motor 1 drives the moving screw rod 2 to rotate, the moving screw rod nut 3 moves on the moving screw rod 2, thereby driving the sliding bottom plate 5 to move along the moving slide rails 4, and finally driving the entire workpiece mounting assembly to move in the base assembly.

[0020] Further, the workpiece mounting assembly in the present application can also rotate and swing at multiple angles. The present application is provided with a swinging member 7 connected with a swinging motor 6 on the sliding bottom plate 5. The swinging member 7 swings forward and backward under the driving of the swinging motor 6, and a workpiece mounting table plate 8 is arranged above the swinging member 7. The workpiece mounting table plate 8 is connected with a table plate driving motor 9, and the workpiece mounting table plate 8 rotates under the driving of the table plate driving motor 9, and can be rotated to any position according to actual cutting needs.

[0021] Further, in addition to the workpiece mounting assembly being movable, rotatable and swingable, in order to further adjust the cutting angle, the cutting assembly in the present application can be raised and lowered and moved left and right. Therefore, the gantry assembly in the present application is arranged at the rear side of the workpiece mounting assembly, and comprises an X-axis bottom plate 11 connected between two vertical columns 10. A Y-axis ball screw 12 is arranged on the vertical column 10, Y-axis linear guides 13 are arranged on both sides of the Y-axis ball screw 12, Y-axis sliding blocks 14 are arranged at both ends of the X-axis bottom plate 11, the Y-axis sliding blocks 14 are arranged on the Y-axis linear guides 13 and connected with the Y-axis linear guides 13 through Y-axis ball screw nuts (connected at the back of the Y-axis sliding blocks 14, not marked in the drawings of the present application), and are raised and lowered along the Y-axis linear guides 13 under the driving of a Y-axis driving motor 15 and limited by Y-axis limiting blocks 16. An X-axis ball screw 17 is arranged on the X-axis bottom plate 11, X-axis linear guides 18 are arranged on both sides of the X-axis ball screw 17, and a cutting moving seat 19 is arranged on the X-axis linear guides 18 through an X-axis sliding block 22 and connected with an X-axis ball screw nut 20. The cutting moving seat 19 slides along the X-axis linear guides 18 under the driving of an X-axis driving motor 60 and is limited by an X-axis limiting block 21. Thus, the entire cutting assembly is realized to be raised and lowered and moved left and right.

[0022] The cutting assembly has the function of lifting in addition to the up-down lifting, left-right movement of the cutting assembly and the swinging, rotation of the tool mounting assembly. The cutting assembly comprises a transverse cutter driving assembly and a longitudinal cutter driving assembly, the longitudinal cutter driving assembly is mounted on a longitudinal driving assembly, the longitudinal driving assembly comprises a longitudinal driving motor 23, the output end of the longitudinal driving motor 23 is provided with a longitudinal ball screw 24, the two sides of the longitudinal ball screw 24 are provided with longitudinal linear guides 59, the longitudinal linear guides 59 are provided with longitudinal sliding blocks 26, the longitudinal ball screw 24 is provided with a longitudinal ball screw nut 25, the longitudinal cutter driving assembly is connected with the longitudinal ball screw nut 25 through the longitudinal sliding blocks 26, and the longitudinal cutter driving assembly is lifted up and down along the longitudinal ball screw 24 under the driving of the longitudinal driving motor 23 and follows the longitudinal sliding blocks 26. Therefore, the application has five-axis adjustment function.

[0023] Preferably, the application has double-end cutters, namely the transverse cutter driving assembly and the longitudinal cutter driving assembly, wherein the transverse cutter mounting port 27 of the transverse cutter driving assembly is located at the front end thereof, and the transverse cutter is replaced through the left cutter changing assembly. The transverse cutter driving assembly comprises a transverse blade driving shaft 28 arranged inside, the end of the transverse blade driving shaft 28 is provided with a synchronous wheel 29, the synchronous wheel 29 is connected with a driving wheel 31 through a synchronous belt 30, and the driving wheel 31 is connected with a driving motor 32. The longitudinal cutter mounting port 33 of the longitudinal cutter driving assembly is located at the lower end thereof, the longitudinal cutter is replaced through the right cutter changing assembly, and the longitudinal blade driving shaft 35 arranged inside is directly driven through the longitudinal driving motor 34.

[0024] The left cutter changing assembly and the right cutter changing assembly are respectively located at the two sides of the workpiece mounting assembly. The left cutter changing assembly comprises a left cutter changing guide rail 36, the left cutter changing guide rail 36 is provided with a left cutter changing seat 38 driven through a left cutter changing cylinder 37, the left cutter changing seat 38 is provided with a left cutter changing cylinder connecting seat 39, the left cutter changing cylinder connecting seat 39 is provided with a left cutter changing quick connector 40, and the left cutter changing quick connector 40 is connected with the output shaft of the left cutter changing cylinder 37. The left cutter changing seat 38 is provided with a plurality of left cutter placing racks 41 from top to bottom, the left cutter placing racks 41 are provided with left cutter handles 42 with left blades 43, the end of the left cutter handle 42 is provided with a left pull pin 44, the position of the left pull pin 44 is opposite to the transverse cutter mounting port 27, when the cutter is replaced, the left cutter handle 42 on the left cutter placing rack 41 with different heights is selected according to the need of the cutting position, the left cutter handle 42 is positioned through the movement of the left cutter changing assembly, and the left pull pin 44 is used to enter the transverse cutter mounting port 27 in the transverse blade driving assembly to realize cutter replacement.

[0025] The right tool changing assembly comprises a right tool changing guide rail 45, a right tool changing seat 47 driven by a right tool changing cylinder 46 arranged on the right tool changing guide rail 45, a right tool changing cylinder connecting seat 48 arranged on the right tool changing seat 47, and a right tool changing quick connecting plug 49 arranged on the right tool changing cylinder connecting seat 48 and connected with an output shaft of the right tool changing cylinder 46. The right tool changing seat 47 is arranged with a plurality of right tool placing racks 50 from left to right, and the right tool placing racks 50 are arranged with right tool shanks 52 with right blades 51, and the right tool shanks 52 are arranged with right pull pins 53 at the ends and the positions of the right pull pins 53 are opposite to the longitudinal tool mounting ports 33. During tool changing, the right tool changing assembly is moved and the longitudinal tool driving assembly is lifted to position, and the right pull pins 53 are arranged to enter the longitudinal tool mounting ports 33 in the longitudinal blade driving assembly to change the tool.

[0026] Further, the left tool changing cylinder 37 and the right tool changing cylinder 46 are arranged with exhaust throttles 54, and the X-axis moving and Y-axis lifting components on the gantry assembly and the self-lifting component of the cutting assembly are arranged with drag chains 55 for facilitating wiring.

[0027] The application is mainly used for cutting automobile chassis parts or similar products, and through the combination of five-axis movement and double-end tools, different diameter saw blades, milling cutters and drills can be replaced according to different working requirements to complete the working requirements and improve the cutting precision. The base assembly further comprises a protection plate 56 for dust prevention, and the base assembly is arranged with a chip removal machine 57 and an operation box 58 on the side to realize the control of the application and the removal of dust. The specific structure and working mode of the chip removal machine 57 and the operation box 58 are well known in the art and are not the contents to be protected by the application, and thus will not be described here.

[0028] The above embodiments are only used for explaining the inventive concept of the application, and are not limited to the protection of the application. Any non-essential modification of the application by using the concept should fall within the protection scope of the application.

Claims

1. A five-axis double-head cutting machine, characterized by: The invention comprises a base assembly, on which a gantry assembly, a moving assembly, a workpiece mounting assembly, a left tool changing assembly and a right tool changing assembly are installed, the workpiece mounting assembly is installed on the moving assembly and slides on the moving assembly, the gantry assembly is located at the rear side of the workpiece mounting assembly, and a cutting assembly is slidably mounted on the gantry assembly, the left tool changing assembly and the right tool changing assembly are respectively located on both sides of the workpiece mounting assembly, and the left tool changing assembly and the right tool changing assembly are used to replace the tool of the cutting assembly; the cutting assembly comprises a transverse tool driving assembly and a longitudinal tool driving assembly, the longitudinal tool driving assembly is installed on the longitudinal driving assembly, and the longitudinal driving assembly comprises a longitudinal driving motor The output end of the longitudinal drive motor is provided with a longitudinal ball screw, and longitudinal linear guides are provided on both sides of the longitudinal ball screw, and a longitudinal slider is provided on the longitudinal linear guide, and a longitudinal ball screw nut is provided on the longitudinal ball screw, and the longitudinal tool drive assembly is connected to the longitudinal ball screw nut through the longitudinal slider; the workpiece mounting assembly includes a sliding base plate, which is installed on the moving assembly, and a rocking member connected to the rocking motor is provided on the sliding base plate, and the rocking member shakes under the drive of the rocking motor, and a workpiece mounting table is provided above the rocking member, and the workpiece mounting table is connected to the table drive motor, and the workpiece mounting table rotates under the drive of the table drive motor.

2. The five-axis double-head cutting machine according to claim 1, characterized in that: The gantry assembly includes an X-axis base plate connected between two columns, a Y-axis ball screw is installed on the column, and Y-axis linear guide rails are provided on both sides of the Y-axis ball screw; an X-axis ball screw is provided on the X-axis base plate, and X-axis linear guide rails are provided on both sides of the X-axis ball screw, the cutting assembly is arranged on the X-axis linear guide rail and slides along the X-axis linear guide rail, and the X-axis base plate is arranged on the Y-axis linear guide rail and rises and falls along the Y-axis linear guide rail.

3. The five-axis double-head cutting machine according to claim 1, characterized in that: The left tool changing assembly includes a left tool changing guide rail, a left tool changing machine base driven by a left tool changing cylinder is provided on the left tool changing machine base, a plurality of left tool placement racks are provided from top to bottom on the left tool placement rack, a left tool handle with a left blade is provided on the left tool handle, and a left pull pin is provided at the end of the left tool handle. When changing the tool, the left pull pin enters the horizontal blade driving assembly.

4. The five-axis double-head cutting machine according to claim 3, characterized in that: The left tool-changing machine base is provided with a left tool-changing cylinder connecting seat, and the left tool-changing cylinder connecting seat is provided with a left tool-changing quick-connect plug, and the left tool-changing quick-connect plug is connected to the output shaft of the left tool-changing cylinder.

5. The five-axis double-head cutting machine according to claim 1, characterized in that: The right tool changing assembly includes a right tool changing guide rail, and the right tool changing guide rail is provided with a right tool changing machine base driven by a right tool changing cylinder. The right tool changing machine base is provided with several right tool placement racks from left to right, and the right tool placement rack is provided with a right tool handle with a right blade. The end of the right tool handle is provided with a right pull pin. When changing the tool, the right pull pin enters the longitudinal blade drive assembly.

6. The five-axis double-head cutting machine according to claim 5, characterized in that: The right tool-changing machine base is provided with a right tool-changing cylinder connecting seat, and the right tool-changing cylinder connecting seat is provided with a right tool-changing quick-connect plug, and the right tool-changing quick-connect plug is connected to the output shaft of the right tool-changing cylinder.

7. The five-axis double-head cutting machine according to claim 6, characterized in that: There are two movable components, which are installed in parallel in the base component, and the two ends of the sliding base plate are respectively connected to the corresponding movable components.

8. The five-axis double-head cutting machine according to claim 7, characterized in that: The moving assembly includes a moving screw connected to a screw drive motor, a moving screw nut is provided on the moving screw, and moving slide rails are provided on both sides of the moving screw. Both ends of the sliding base are arranged on the moving slide rails and connected to the moving screw nut.

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