Numerical control double-end milling type edge milling machine

Abstract

The utility model relates to the technical field of edge milling machines, and discloses a numerical control double-head milling type edge milling machine which comprises a workbench, a portal frame, a transverse and vertical moving device, a milling device and a workpiece locking device, the milling device can move up and down and left and right relative to the workbench through the horizontal and vertical moving device; the portal frame comprises supporting columns and a cross beam. The workpiece locking device is located between the two supporting columns. The two ends of the cross beam are connected with the upper ends of the two supporting columns correspondingly and connected with the transverse and vertical moving device. A plurality of stress release holes are formed in the cross beam in the length direction; and / or a plurality of stress release holes are distributed in the supporting column in the length direction of the supporting column. The numerical control double-end milling type edge milling machine can effectively disperse stress when the portal frame bears heavy loads, the problem of deformation caused by stress concentration is solved, stress is better eliminated, the stability of equipment is guaranteed, and meanwhile, due to the reasonable design of the stress release holes, materials can be saved while the strength of the equipment is kept.

Description

Technical Field

[0001] This utility model relates to the field of edge milling machine technology, and in particular to a CNC double-head milling edge milling machine. Background Technology

[0002] In the hardware and other workpiece processing industry, edge milling machines are indispensable equipment. They are used to precisely process the edges of hardware and other workpieces to meet the requirements of subsequent welding, assembly, and other processes. Traditional edge milling machines mostly use single-head milling, which results in low processing efficiency. Moreover, for large plates or complex-shaped workpieces, single-head milling cannot guarantee consistent processing quality and efficiency. In recent years, although double-head and even multi-head edge milling machines have appeared on the market, these machines still have shortcomings in structural design, especially in the gantry section. Due to the large cutting forces and vibrations they bear, stress concentration is prone to occur, leading to decreased accuracy and shortened service life.

[0003] Chinese patent CN216178499U discloses a gantry milling machine, including a support, a work plate, a disc, a double-acting lead screw, two moving blocks, a throttle, a primary motor, a rotating shaft, a gantry frame, two sets of clamping mechanisms, an adjustment mechanism, and a milling mechanism. The top of the support is connected to the bottom of the work plate. The top of the work plate has a circular groove, in which the disc is rotatably mounted. The top of the disc also has a groove, in which the double-acting lead screw is rotatably mounted. Both moving blocks are slidably mounted in the grooves and are threadedly connected to the double-acting lead screw. The right end of the double-acting lead screw extends to the circular groove. The right side of the disc connects to the left end of the throttle handle. The top of motor 14 connects to the bottom end of the work plate, and the output end of motor 1 connects to the bottom end of the rotating shaft. The top of the rotating shaft extends into a circular groove and connects to the center of the bottom end of the disc. The bottom end of the gantry frame connects to the top end of the work plate. The adjustment mechanism is installed at the bottom of the crossbeam of the gantry frame, and the milling mechanism is installed at the bottom end of the adjustment mechanism. The adjustment mechanism is used to move the milling mechanism, which is used to mill the tapered workpiece. Two sets of clamping mechanisms are installed at the top of the two moving blocks to fix the tapered workpiece. The two sets of clamping mechanisms are mirror-symmetrical. However, the gantry frame of this gantry milling machine houses the adjustment mechanism and the milling mechanism. During production, the gantry frame is prone to bearing large cutting forces and vibrations, which can easily lead to stress concentration and deformation of the gantry frame. This, in turn, reduces the machining accuracy and shortens the service life of the gantry milling machine. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of the prior art and provide a CNC double-head milling edge milling machine.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] A CNC double-head milling edge milling machine includes a worktable, a gantry frame, a horizontal and vertical moving device, and a milling device; the gantry frame is mounted on the worktable; the horizontal and vertical moving device is mounted on the gantry frame; the milling device is connected to the horizontal and vertical moving device and can move relative to the worktable in the up-down and left-right directions through the horizontal and vertical moving device; it also includes a workpiece locking device.

[0007] The gantry frame includes:

[0008] Support columns, two of which are connected at intervals to the worktable; the workpiece locking device is located on the worktable and between the two support columns;

[0009] The crossbeam has its two ends connected to the upper ends of the two support columns and to the horizontal and vertical moving device, respectively.

[0010] The crossbeam is provided with several stress relief holes along its length.

[0011] And / or, the support column is provided with a plurality of stress relief holes along its length.

[0012] Furthermore, both the crossbeam and the support column are provided with stress relief cavities; the stress relief holes are connected to the stress relief cavities.

[0013] Furthermore, the top, bottom, and rear surfaces of the crossbeam are provided with a number of stress relief holes along the length of the crossbeam;

[0014] And / or, a plurality of stress relief holes are provided on the rear of the crossbeam along its length.

[0015] Furthermore, the stress relief hole is a round hole, an elliptical hole, or a square hole.

[0016] Furthermore, a lead screw groove is provided on the front side of the crossbeam; the horizontal and vertical moving device includes a horizontal moving device and a vertical moving device; the horizontal moving device includes a horizontal drive motor, a horizontal lead screw, a horizontal slide block, and a horizontal guide rail; the horizontal lead screw is rotatably installed in the lead screw groove;

[0017] The transverse drive motor is located in the lead screw groove; the transmission shaft of the transverse drive motor is connected to the transverse lead screw; the transverse slide is slidably connected to the transverse lead screw and slidably connected to the transverse guide rail; the transverse slide moves reciprocally along the length direction of the transverse lead screw under the drive of the transverse drive motor.

[0018] The vertical moving device is connected to the horizontal slide; the milling device is connected to the vertical moving device.

[0019] Furthermore, the two transverse guide rails are respectively located on the upper and lower sides of the lead screw groove.

[0020] Furthermore, the milling device has two parts; the two milling devices are arranged side by side and connected to the horizontal and vertical moving device through a connecting plate frame; the connecting plate frame is an L-shaped plate.

[0021] Furthermore, both the horizontal and vertical moving device and the milling device are equipped with dust covers; the dust covers have several heat dissipation holes.

[0022] Furthermore, the workpiece locking device includes a longitudinal moving device and a workpiece placement table; the longitudinal moving device is installed on the worktable and located between the two support columns; the workpiece placement table is connected to the longitudinal moving device and moves back and forth relative to the worktable by the drive of the longitudinal moving device; the workpiece placement table has several inverted T-shaped grooves arranged at intervals.

[0023] Furthermore, the longitudinal moving device includes a mounting base, a longitudinal drive motor, a longitudinal lead screw, a longitudinal slide block, and a longitudinal slide rail; the mounting base is mounted on the worktable; the longitudinal lead screw is rotatably connected to the mounting base and longitudinally arranged on the mounting base; the longitudinal drive motor is mounted on the mounting base; the conveying shaft of the longitudinal drive motor is drively connected to the longitudinal lead screw; the longitudinal slide block is slidably connected to the longitudinal lead screw and slidably connected to the longitudinal slide rail; the longitudinal slide block reciprocates along the length direction of the longitudinal lead screw under the drive of the longitudinal drive motor; the workpiece placement table is connected to the longitudinal slide block.

[0024] Compared with existing technologies, this utility model has the following advantages:

[0025] 1. This utility model, based on the worktable, gantry frame, horizontal and vertical moving device, and milling device, further adds a workpiece locking device to facilitate the positioning and fixing of hardware parts and other workpieces for subsequent milling processing. Furthermore, the gantry frame is improved by setting support columns and crossbeams to form the gantry frame, and several stress relief holes are set on the crossbeams or support columns, or both, to effectively disperse the stress on the gantry frame under heavy loads, preventing deformation caused by stress concentration, better eliminating stress, and ensuring the stability of the equipment. At the same time, the reasonable design of the stress relief holes allows for the reduction of material usage and lower production costs while maintaining the strength of the equipment.

[0026] 2. The horizontal and vertical moving device and the workpiece locking device of this utility model are used together to ensure stability and precision during the processing and improve the processing quality of the product. Attached Figure Description

[0027] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a three-dimensional structural diagram of the CNC double-head milling edge milling machine of this utility model.

[0029] Figure 2 This is one of the exploded three-dimensional structural diagrams of the CNC double-head milling edge milling machine of this utility model.

[0030] Figure 3 This is the second exploded three-dimensional structural diagram of the CNC double-head milling edge milling machine of this utility model.

[0031] Figure 4 This is a top view of the gantry structure of this utility model.

[0032] Figure 5 yes Figure 4 The enlarged view shown in the AA direction.

[0033] The image includes:

[0034] Workbench 1, Gantry 2, Support column 21, Crossbeam 22, Screw groove 221, Stress relief hole 23, Stress relief cavity 24, Horizontal and vertical moving device 3, Horizontal moving device 31, Horizontal drive motor 311, Horizontal screw 312, Horizontal slide 313, Horizontal guide rail 314, Vertical moving device 32, Milling device 4, Workpiece locking device 5, Longitudinal moving device 51, Mounting base 511, Longitudinal drive motor 512, Longitudinal screw 513, Longitudinal slide 514, Longitudinal slide rail 515, Workpiece placement table 52, Inverted T-slot 521, Integrated plate frame 6, Dust cover 7, Heat dissipation hole 71. Detailed Implementation

[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0036] like Figures 1 to 5As shown, a CNC double-head milling edge milling machine includes a worktable 1, a gantry frame 2, a horizontal and vertical moving device 3, a milling device 4, and a workpiece locking device 5. The gantry frame 2 is mounted on the worktable 1. The horizontal and vertical moving device 3 is mounted on the gantry frame 2. The milling device 4 is connected to the horizontal and vertical moving device 3 and can move relative to the worktable 1 in the up-down and left-right directions via the horizontal and vertical moving device 3. This mounting of the horizontal and vertical moving device 3 on the gantry frame 2 ensures that the milling device 4 can move flexibly in the up-down and left-right directions, meeting diverse processing needs and enabling the milling device 4 to move in two axial directions, namely, horizontal and vertical axial movement. The workpiece locking device 5 ensures that the position of the workpiece is fixed during processing. The horizontal and vertical moving device 3 and the workpiece locking device 5 work together to ensure stability and accuracy during processing, improving the processing quality of the product. The gantry frame 2 includes a support column 21 and a crossbeam 22. Two support columns 21 are spaced apart and connected to the worktable 1; specifically, the two support columns 21 are spaced apart and connected in the left-right direction of the worktable 1. The workpiece locking device 5 is disposed on the worktable 1 and located between the two support columns 21; both ends of the crossbeam 22 are connected to the upper ends of the two support columns 21 and to the horizontal and vertical moving device 3; in one embodiment, the crossbeam 22 is provided with a plurality of stress relief holes 23 along its length; in another embodiment, the support columns 21 are provided with a plurality of stress relief holes 23 along their length. In yet another embodiment, the crossbeam 22 and the support columns 21 are provided with corresponding stress relief holes 23 as described in the above two embodiments.

[0037] Based on the worktable 1, gantry 2, horizontal and vertical moving device 3, and milling device 4, a workpiece locking device 5 is added to facilitate the positioning and fixing of hardware parts and other workpieces for subsequent milling processing. Furthermore, the gantry 2 is improved by setting support columns 21 and crossbeams 22 to form the gantry 2. Several stress relief holes 23 are set on the crossbeams 22 or support columns 21, or both, to effectively disperse the stress of the gantry 2 under heavy loads, prevent deformation caused by stress concentration, better eliminate stress, and ensure the stability of the equipment. At the same time, the reasonable design of the stress relief holes 23 reduces the amount of material used and lowers production costs while maintaining the strength of the equipment.

[0038] To further improve the stress dispersion and material saving capabilities of the gantry 2, stress relief cavities 24 are provided inside both the crossbeam 22 and the support column 21; preferably, the stress relief cavities 24 of the crossbeam 22 and the support column 21 are interconnected. The stress relief holes 23 are connected to the stress relief cavities 24. By combining the stress relief cavities 24 and the stress relief holes 23, the stress of the gantry 2 under heavy loads is further effectively dispersed, preventing deformation caused by stress concentration, better eliminating stress, and ensuring the stability of the equipment. At the same time, the reasonable design of the stress relief holes 23 allows for the reduction of material usage while maintaining the strength of the equipment, thus lowering production costs.

[0039] Preferably, regarding the specific arrangement of the stress relief holes 23, in one embodiment, a plurality of stress relief holes 23 are arranged along the length of the crossbeam 22 on its top, bottom, and rear surfaces. In another embodiment, a plurality of stress relief holes 23 are arranged along the length of the rear surface of the crossbeam 22. In yet another embodiment, both the crossbeam 22 and the support column 21 are provided with corresponding stress relief holes 23, as described in the two specific embodiments above. This design of the stress relief holes 23 effectively disperses the stress of the gantry 2 under heavy loads, prevents deformation caused by stress concentration, better eliminates stress, and ensures the stability of the equipment. At the same time, the reasonable design of the stress relief holes 23 allows for the reduction of material usage while maintaining the strength of the equipment, thus reducing production costs and achieving the effects of stress dispersion and material saving for the gantry 2.

[0040] In this embodiment, the stress relief hole 23 can be a regular-shaped hole, such as a round hole, an elliptical hole, or a square hole, preferably a round hole, which is simple to design. Of course, the stress relief hole 23 can also be an irregularly shaped hole.

[0041] In this embodiment, a lead screw groove 221 is provided on the front side of the crossbeam 22; the horizontal and vertical moving device 3 includes a horizontal moving device 31 and a vertical moving device 32; the horizontal moving device 31 includes a horizontal drive motor 311, a horizontal lead screw 312, a horizontal slide block 313, and a horizontal guide rail 314; the horizontal lead screw 312 is rotatably mounted in the lead screw groove 221; the horizontal drive motor 311 is located in the lead screw groove 221. The lead screw groove 221 is designed such that the transmission shaft of the horizontal drive motor 311 is connected to the horizontal lead screw 312; the horizontal slide block 313 is slidably connected to the horizontal lead screw 312 and slidably connected to the horizontal guide rail 314; the horizontal slide block 313 reciprocates along the length direction of the horizontal lead screw 312 under the drive of the horizontal drive motor 311; the vertical moving device 32 is connected to the horizontal slide block 313; and the milling device 4 is connected to the vertical moving device 32. The transverse drive motor 311 drives the transverse slide 313 to reciprocate along the length of the transverse lead screw 312. The transverse guide rail 314 further enhances the stability of the transverse slide 313's movement, facilitating the adjustment of the positions of the vertical moving device 32 and the milling device 4 on the worktable 1. This allows the milling device 4 to easily mill workpieces such as metal parts made of iron, copper, aluminum alloys, and zinc alloys. Similarly, the vertical moving device 32, a conventional lead screw moving device, enables the milling device 4 to move vertically relative to the worktable 1, facilitating the milling device 4's processing of metal parts.

[0042] To further enhance the movement stability of the transverse slide 313 and improve the connection stability, the two transverse guide rails 314 are respectively located on the upper and lower sides of the lead screw groove 221.

[0043] In this embodiment, to improve the production efficiency of the CNC double-head milling edge milling machine, two milling devices 4 are provided. The two milling devices 4 are arranged side-by-side and connected to the horizontal and vertical moving device 3 via a connecting plate frame 6. By providing two milling devices 4, they can simultaneously process two hardware parts or other workpieces, thus improving production efficiency. The connecting plate frame 6 is an L-shaped plate. The connection of the two milling devices 4 via the connecting plate frame 6 provides higher vibration resistance, stronger rigidity, and greater stability and reliability during processing. The milling devices 4 are existing milling devices 4, possessing the same effects as existing milling devices 4, and will not be described in detail further.

[0044] In order to provide good protection for the horizontal and vertical moving device 3 and the milling device 4, achieve dust prevention, have an aesthetically pleasing appearance, and make the equipment circuit more stable, both the horizontal and vertical moving device 3 and the milling device 4 are equipped with dust covers 7; the dust covers 7 have several heat dissipation holes 71, which can provide good heat dissipation for the vertical moving device and the milling device 4.

[0045] In this embodiment, the workpiece locking device 5 includes a longitudinal moving device 51 and a workpiece placement table 52. The longitudinal moving device 51 is mounted on the worktable 1 and located between the two support columns 21. The workpiece placement table 52 is connected to the longitudinal moving device 51 and reciprocates relative to the worktable 1 in the front-back direction via the drive of the longitudinal moving device 51. The workpiece placement table 52 has several inverted T-shaped grooves 521 arranged at intervals. The design of the inverted T-shaped grooves 521 facilitates the clamping and positioning of the workpiece, which is more flexible and convenient than the traditional screw-locking method. By using the longitudinal moving device 51 to drive the workpiece placement table 52 to reciprocate relative to the worktable 1 in the front-back direction, combined with the horizontal and vertical moving device 3, the position of the milling device 4 and the workpiece placement table 52 can be adjusted, facilitating the milling device 4 to process the workpiece.

[0046] Specifically, the longitudinal moving device 51 includes a mounting base 511, a longitudinal drive motor 512, a longitudinal lead screw 513, a longitudinal slide block 514, and a longitudinal slide rail 515; the mounting base 511 is mounted on the worktable 1; the longitudinal lead screw 513 is rotatably connected to the mounting base 511 and longitudinally arranged on the mounting base 511; the longitudinal drive motor 512 is located on the mounting base 511; the conveying shaft of the longitudinal drive motor 512 is drively connected to the longitudinal lead screw 513; the longitudinal slide block 514 is slidably connected to the longitudinal lead screw 513 and slidably connected to the longitudinal slide rail 515; the longitudinal slide block 514 reciprocates along the length direction of the longitudinal lead screw 513 under the drive of the longitudinal drive motor 512; the workpiece placement table 52 is connected to the longitudinal slide block 514. The longitudinal drive motor 512 drives the longitudinal slide 514 to reciprocate along the length of the longitudinal lead screw 513. The longitudinal slide rail 515 further enhances the stability of the transverse slide 313 movement, which is conducive to adjusting the position of the workpiece placement table 52 on the worktable 1 and facilitates the milling device 4 to perform milling production on hardware parts and other workpieces, such as iron, copper, aluminum alloy, zinc alloy, etc.

[0047] Of course, this CNC biaxial milling machine also includes an existing intelligent CNC system: an integrated touch screen operating interface and PLC control unit. Users can input parameters such as workpiece size and material, as well as processing requirements, through the interface. The system automatically adjusts milling parameters, including feed rate, spindle speed, and depth of cut. The system automatically calculates and generates the optimal processing plan, achieving intelligent processing and reducing human error. At the same time, the system has real-time monitoring and fault alarm functions to ensure the safety and stability of the processing. It also provides electrical control for the horizontal and vertical moving device 3, the milling device 4, and the workpiece locking device 5.

[0048] In summary, this utility model embodiment provides a CNC double-head milling edge milling machine, which has the following advantages:

[0049] 1. Based on the worktable 1, gantry 2, horizontal and vertical moving device 3, and milling device 4, a workpiece locking device 5 is added to facilitate the positioning and fixing of hardware parts and other workpieces for subsequent milling processing. Furthermore, the gantry 2 is improved by setting support columns 21 and crossbeams 22 to form the gantry 2. Several stress relief holes 23 are set on the crossbeams 22 or support columns 21, or both, effectively dispersing the stress on the gantry 2 under heavy loads, preventing deformation caused by stress concentration, better eliminating stress, and ensuring the stability of the equipment. At the same time, the reasonable design of the stress relief holes 23 allows for the reduction of material usage and lower production costs while maintaining the strength of the equipment.

[0050] Second, the horizontal and vertical moving device 3 and the workpiece locking device 5 work together to facilitate the adjustment of the position of the milling device 4 and the workpiece, ensuring stability and accuracy during the processing and improving the processing quality of the product.

[0051] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. A CNC double-head milling edge milling machine, comprising a worktable, a gantry frame, a horizontal and vertical moving device, and a milling device; the gantry frame is mounted on the worktable; the horizontal and vertical moving device is mounted on the gantry frame; the milling device is connected to the horizontal and vertical moving device and can move relative to the worktable in the up-down and left-right directions via the horizontal and vertical moving device; characterized in that, It also includes a workpiece locking device; The gantry frame includes: Support columns, two of which are connected at intervals to the worktable; the workpiece locking device is located on the worktable and between the two support columns; The crossbeam has its two ends connected to the upper ends of the two support columns and to the horizontal and vertical moving device, respectively. The crossbeam is provided with several stress relief holes along its length. And / or, the support column is provided with a plurality of stress relief holes along its length.

2. The CNC double-head milling edge milling machine according to claim 1, characterized in that, Both the crossbeam and the support column are equipped with stress relief cavities; the stress relief holes are connected to the stress relief cavities.

3. The CNC double-head milling edge milling machine according to claim 1 or 2, characterized in that, The top, bottom, and rear surfaces of the crossbeam are provided with a number of stress relief holes along the length of the crossbeam. And / or, a plurality of stress relief holes are provided on the rear of the crossbeam along its length.

4. The CNC double-head milling edge milling machine according to claim 1, characterized in that, The stress relief hole can be a round hole, an elliptical hole, or a square hole.

5. The CNC double-head milling edge milling machine according to claim 1, characterized in that, A lead screw groove is provided on the front side of the crossbeam; the horizontal and vertical moving device includes a horizontal moving device and a vertical moving device; the horizontal moving device includes a horizontal drive motor, a horizontal lead screw, a horizontal slide block, and a horizontal guide rail; the horizontal lead screw is rotatably installed in the lead screw groove; The transverse drive motor is located in the lead screw groove; the transmission shaft of the transverse drive motor is connected to the transverse lead screw; the transverse slide is slidably connected to the transverse lead screw and slidably connected to the transverse guide rail; the transverse slide moves reciprocally along the length direction of the transverse lead screw under the drive of the transverse drive motor. The vertical moving device is connected to the horizontal slide; the milling device is connected to the vertical moving device.

6. The CNC double-head milling edge milling machine according to claim 5, characterized in that, The two transverse guide rails are located on the upper and lower sides of the lead screw groove, respectively.

7. The CNC double-head milling edge milling machine according to claim 1, characterized in that, The milling device has two parts; the two milling devices are arranged side by side and connected to the horizontal and vertical moving device through a connecting plate frame; the connecting plate frame is an L-shaped plate.

8. The CNC double-head milling edge milling machine according to claim 1, characterized in that, Both the horizontal and vertical moving device and the milling device are equipped with dust covers; the dust covers have several heat dissipation holes.

9. The CNC double-head milling edge milling machine according to claim 1, characterized in that, The workpiece locking device includes a longitudinal moving device and a workpiece placement table; the longitudinal moving device is installed on the worktable and located between the two support columns; the workpiece placement table is connected to the longitudinal moving device and moves back and forth relative to the worktable by the drive of the longitudinal moving device; the workpiece placement table has several inverted T-shaped grooves arranged at intervals.

10. The CNC double-head milling edge milling machine according to claim 9, characterized in that, The longitudinal moving device includes a mounting base, a longitudinal drive motor, a longitudinal lead screw, a longitudinal slide block, and a longitudinal slide rail; the mounting base is mounted on the worktable; the longitudinal lead screw is rotatably connected to the mounting base and longitudinally arranged on the mounting base; the longitudinal drive motor is mounted on the mounting base; the transmission shaft of the longitudinal drive motor is drively connected to the longitudinal lead screw; the longitudinal slide block is slidably connected to the longitudinal lead screw and slidably connected to the longitudinal slide rail; the longitudinal slide block reciprocates along the length direction of the longitudinal lead screw under the drive of the longitudinal drive motor; The workpiece placement platform is connected to the longitudinal slide.

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