A carving and milling machine

Abstract

The present invention provides an engraving and milling machine, which belongs to the field of mechanical technology. It solves the problem of how to improve production efficiency while meeting versatility. The engraving and milling machine includes a frame and an engraving and milling head. The frame is provided with two clamping seats that can move relatively for clamping workpieces. A loading device for outputting the workpiece is provided next to the two clamping seats. The discharge of the loading device has a positioning member for positioning the workpiece, and the two clamping seats can move between the positioning member and the engraving and milling head. The engraving and milling machine cleverly utilizes and moves the two clamping seats, and combined with the design of the loading device and the positioning member, the engraving and milling machine can integrate the three steps of material collection, accurate loading, and material transfer, thereby greatly improving production efficiency; and the engraving and milling machine can be suitable for the processing requirements of workpieces of different lengths, widths, and heights, and has good versatility.

Description

Technical Field

[0001] The invention belongs to the technical field of machinery and relates to an engraving and milling machine. Background Art

[0002] A milling machine is a device capable of marking a surface to a certain depth. Principled by its processing principle, it combines drilling and milling. Milling machines have a wide range of applications, including wood, stone, metal, and plastic. Their automatic engraving delivers excellent results and is fast, making them commonly used in high-volume, rapid production.

[0003] Among them, woodworking engraving machine is an industry classification of engraving and milling machine, which is mainly used for the production and processing of wooden products. For example, Chinese patent [application number 201620004272.3] discloses a new type of wood engraving machine, including an operating body, a gantry is provided on the operating body, an engraving head is mounted on the gantry, the engraving head includes a milling cutter and a rotating saw blade, a wood rotating clamp device is also provided at the upper left end of the operating body, the wood rotating clamp device includes a base, a fixed end device is provided on the base, the fixed end device is connected to a transmission mechanism, the transmission mechanism includes a pulley and a shaft, the shaft is connected to the pulley through a key, the shaft is connected to a chuck seat and a three-jaw chuck, a guide rail is provided on the base, a tailstock slide that can slide horizontally along the guide rail is movably provided on the guide rail, an ejector body is mounted on the tailstock slide, a top is fixed to the front end of the ejector body, and a controller is also provided on the upper right side of the operating body.

[0004] In the above-mentioned existing wood engraving machine, the clamping device designed therein is suitable for clamping wood of different lengths and specifications, taking into account the processing needs of wood of different lengths and specifications. However, the wood engraving machine also has the following defects: during the use of the above-mentioned wood engraving machine, the loading and feeding of the wood need to be completed manually, which results in the loading and feeding steps taking a long time, thereby affecting the production efficiency of wood engraving.

[0005] In order to improve production efficiency, technical means commonly used by technical personnel in this field include: 1. By adding a loading device to the engraving machine, and then setting a robot to clamp the workpiece output by the loading device and install it on the fixture, so as to realize the automation of loading and charging; 2. By increasing the number of fixtures and processing stations, the time delayed in loading and charging can be utilized, thereby improving production efficiency; However, the above means will lead to an increase in production costs, which is not conducive to the cost management and control of enterprise production. Summary of the Invention

[0006] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose an engraving and milling machine. The technical problem solved by the present invention is how to improve production efficiency while meeting versatility.

[0007] The objectives of the present invention can be achieved through the following technical solutions: A milling machine, comprising a frame and a milling head, characterized in that the frame is provided with two clamping seats that can move relatively for clamping workpieces, a loading device for outputting the workpiece is provided next to the two clamping seats, the discharge of the loading device has a positioning member for positioning the workpiece, and the two clamping seats can move between the positioning member and the milling head.

[0008] Different from the existing technology, this engraving and milling machine cleverly utilizes and moves the two clamping seats, and combined with the design of the loading device and the positioning part, this engraving and milling machine can meet the versatility while improving production efficiency. Specifically, the working principle of this engraving and milling machine is as follows: First, the workpiece is automatically output by the loading device, and then positioned by the positioning part. At this time, the two clamping seats move relative to each other, opening like claws, and then move to both sides of the positioning part after opening. Since the positioning part has already positioned the position of the workpiece, it is only necessary to control the moving stroke of the two clamping seats through the program to complete the workpiece clamping and accurate clamping at the same time. Then the two clamping seats move the workpiece to the engraving and milling head for engraving processing, thereby completing the engraving processing operation; Analysis of the above working principle can show It is known that in this engraving and milling machine, the links of workpiece picking and loading are integrated together through the cooperation of two clamping seats, positioning parts and loading devices. The two clamping seats are not only a set of clamping structures for clamping workpieces, but also play the role of automatic picking, loading and moving. This greatly saves the time occupied by the existing step-by-step picking, loading and moving, thereby improving production efficiency. At the same time, since the two clamping seats can move relative to each other like claws, workpieces of different lengths can be clamped, which well meets the requirements of versatility and retains the good versatility of the engraving and milling machine.

[0009] In the above-mentioned engraving and milling machine, the positioning member includes a positioning seat connected to the discharge of the loading device and used to support the workpiece. The positioning seat is open to one side of the engraving and milling head and has a vertical positioning surface arranged in the vertical direction and a horizontal positioning surface arranged in the horizontal direction. Through the above design, on the one hand, the positioning seat is open to the side of the engraving and milling head, which makes it very convenient for the two clamping seats to move to the positioning seat to retrieve materials, and there is no obstruction when removing them, which is conducive to improving production efficiency. At the same time, by providing a vertical positioning surface and a horizontal positioning surface on this side, the workpiece can be positioned and accurately located in two directions when it is discharged from the loading device. This is conducive to the two clamping seats to realize simultaneous retrieval of materials and accurate clamping of the workpiece, thereby further improving production efficiency.

[0010] Alternatively, the positioning member includes a lifting and lowering jaw disposed at the discharge of the loading device. The inner sides of the two chucks of the jaw have positioning surfaces for positioning the workpiece. When the workpiece is discharged from the loading device to the jaws, the two chucks clamp and position it via the positioning surfaces. When the two clamping seats clamp the workpiece, the jaws release and descend, allowing the workpiece to be removed.

[0011] In the above-mentioned engraving and milling machine, a positioning push rod and a driving structure are provided outside the positioning seat. The positioning push rod is located on the side of the positioning seat facing the engraving and milling head. The driving structure can drive the positioning push rod to move by rotation or translation and make the positioning push rod higher than the horizontal positioning surface. In addition, the driving structure can also drive the positioning push rod to move toward the vertical positioning surface. The driving structure includes a rotary cylinder fixed to the lower part of the positioning seat, and the positioning push rod is fixed on the piston rod of the rotary cylinder. The rotary cylinder can drive the positioning push rod to rotate and move. Alternatively, the above-mentioned rotary cylinder can also be replaced by a screw motor; as another solution, the driving structure includes a linear cylinder fixed to the lower part of the positioning seat, and a stepper motor is fixed on the piston rod of the linear cylinder, and the positioning push rod is fixed on the motor shaft of the stepper motor. When the workpiece falls onto the positioning seat from the discharge of the loading device, the positioning push rod can, under the action of the above-mentioned driving structure, be raised above the horizontal positioning surface by rotation or translation, and push the workpiece to the vertical positioning surface, so that the workpiece can be positioned accurately against the vertical positioning surface. After the workpiece is positioned, the positioning push rod is driven by the driving structure to move in the direction away from the vertical positioning surface, and moves to a position below the horizontal positioning surface by rotation or translation, so that the workpiece will not be blocked when it is clamped and moved out by the clamping seat; therefore, through the above design, the two clamping seats can realize automatic material taking while also realizing automatic and accurate clamping of the workpiece, thereby improving production efficiency.

[0012] In the above-mentioned engraving and milling machine, the loading device includes a connecting frame and a guide frame fixed on the connecting frame, and the guide frame has a guide channel running through it in the vertical direction; the guide frame includes two guide plates arranged opposite to each other in the horizontal direction, and the guide channel is formed between the two guide plates; the connecting frame has two guide plates that are respectively connected to the frame in the horizontal direction for sliding, and the two guide plates correspond to the above-mentioned two connecting frames and are fixedly connected. When the two connecting frames move relative to each other, the distance between the guide plates can be changed, that is, the length of the guide channel formed between the guide plates can be changed. In other words, through the above design, combined with the two clamping devices that can move relative to each other in the horizontal direction, the engraving and milling machine can be suitable for loading, removing and loading workpieces of different lengths, thereby meeting the requirements of versatility. In addition, when the workpiece needs to be loaded, it can be placed in the guide channel manually or by a robot for loading.

[0013] As an alternative, the above-mentioned loading device includes a conveyor belt and a discharge trough arranged at the discharge end of the conveyor belt, and the positioning seat is located at the discharge end of the discharge trough.

[0014] In the aforementioned milling machine, the guide plate is a split structure, comprising a first and second half. The first half has a strip groove extending along its width, and screws are inserted through the grooves, securing the first and second half guide plates together. This design allows for adjustable guide plate widths. Combined with positioning elements and control over the travel of the clamping base, the milling machine is adaptable to loading, unloading, and loading workpieces of varying widths, thus meeting the requirements of versatility.

[0015] In the above-mentioned milling machine, the positioning seat is provided with a vertically arranged strip hole (1), through which a screw is inserted, and the positioning seat is fixed to the guide frame via the screw. This design allows the height of the positioning seat to be adjusted, that is, the positioning height of the workpiece can be adjusted. This allows the milling machine to be adapted to the processing needs of workpieces of different heights, thus meeting the requirements of versatility.

[0016] In the aforementioned engraving and milling machine, an adjustment block is fixed to the guide frame. The adjustment block is located above the positioning seat. A vertically arranged adjustment screw is threaded onto the adjustment block. The positioning seat has a connecting seat body. The adjustment screw passes through the connecting seat body and is axially positioned with the connecting seat body and can rotate circumferentially. With this design, the height of the positioning seat can be adjusted by simply loosening the screw in the strip hole and then turning the adjustment screw, making it very convenient to adjust the height of the positioning seat, which helps improve production efficiency.

[0017] In the above-mentioned engraving and milling machine, a movable platform capable of sliding in a horizontal longitudinal direction is slidably connected to the frame, and two clamping seats are arranged on the movable platform in a horizontal lateral direction with a spacing therebetween and are capable of relative movement in the horizontal lateral direction. Through the above-mentioned design, the two clamping seats can achieve relative movement in the horizontal lateral direction while also being able to slide in the horizontal longitudinal direction, thereby enabling the two clamping seats to perform material removal and transfer operations, thereby ensuring an automated design and further facilitating improved production efficiency.

[0018] In the above-mentioned engraving and milling machine, one of the clamping seats is provided with a center and a driving cylinder, and the driving cylinder is used to drive the center to move telescopically relative to the seat body of the clamping seat.

[0019] Preferably, one of the two clamping seats is fixed on the mobile platform, and the other clamping seat is slidably connected to the mobile platform and can slide horizontally. The movable clamping seat is provided with a top, and the clamping seat fixed on the mobile platform is provided with a turntable.

[0020] During the process of picking up and clamping the workpiece, the clamping seat provided with the top point is moved to the initial clamping position and then locked with a fastener. Subsequently, the top point is driven by the driving cylinder to extend relative to the seat body of the clamping seat, thereby realizing the clamping operation of the workpiece; when the workpiece is processed and needs to be unloaded, the top point retracts and the clamping seat is unlocked and retracted, thereby realizing the unloading operation of the workpiece.

[0021] In the aforementioned engraving and milling machine, the discharge port of the loading device is equipped with a retaining plate, which opposes the positioning seat. The retaining plate has two vertically arranged strip holes, through which screws are inserted. The retaining plate is fixed to the guide frame via the screws. This retaining plate design not only prevents workpieces from falling out during discharge, but also allows for height adjustment to accommodate machining at varying heights, thus meeting universal requirements.

[0022] In the aforementioned milling machine, a workpiece unloading guide is fixed to the connecting frame. The feed end of the unloading guide is located between the positioning member and the milling head. When the workpiece between the two clamping seats is completed, the clamping seats move to move the workpiece to the feed end of the unloading guide for automatic unloading, thereby improving the production efficiency of the milling machine.

[0023] Compared with the existing technology, this engraving and milling machine has the following advantages:

[0024] 1. This engraving and milling machine cleverly utilizes and moves the two clamping seats, and combined with the design of the above-mentioned feeding device and positioning parts, it enables this engraving and milling machine to integrate the three steps of material collection, accurate loading and material transfer, thereby greatly improving production efficiency;

[0025] 2. This engraving and milling machine can meet the processing needs of workpieces of different lengths, widths and heights and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of this engraving and milling machine.

[0027] Figure 2 This is a structural diagram of the loading device, positioning parts, and clamping seat parts of this engraving and milling machine.

[0028] Figure 3 This is a schematic diagram of the structure of the loading device and positioning parts in this engraving and milling machine. Figure 1 .

[0029] Figure 4 This is a schematic diagram of the structure of the loading device and positioning parts in this engraving and milling machine. Figure 2 .

[0030] Figure 5 It is a schematic diagram of the movable structure of the clamping seat in this engraving and milling machine.

[0031] In the figure, 1. frame; 2. engraving and milling head; 3. clamping seat; 31. center; 32. turntable; 33. driving cylinder; 4. positioning member; 41. positioning seat; 41a. strip hole 1; 411. vertical positioning surface; 412. horizontal positioning surface; 413. connecting seat body; 5. positioning push rod; 6. connecting frame; 7. material guide frame; 71. material guide plate; 711. semi-material guide plate 1; 7111. strip groove; 712. semi-material guide plate 2; 8. material guide channel; 9. screw; 10. adjusting block; 11. adjusting screw; 12. moving table; 13. material guide plate; 14. rotating cylinder; 15. material stop plate; 151. strip hole 2; 16. driving member; a. workpiece. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0033] Example 1:

[0034] Specifically, if Figure 1 and Figure 5 As shown, the engraving and milling machine includes a frame 1 and an engraving and milling head 2. The frame 1 is provided with two clamping seats 3 for clamping the workpiece a. The frame 1 is slidably connected to a movable platform 12 that can slide in the horizontal longitudinal direction. The movable platform 12 is driven by a driving member, which can be a motor. The movable platform 12 is coupled to the motor through a screw and nut; or the movable platform 12 can also be coupled to the motor through a gear rack. The two clamping seats 3 are arranged on the movable platform 12 at intervals along the horizontal transverse direction and can move relative to each other in the horizontal transverse direction. In this example, one of the two clamping seats 3 is fixed on the movable platform 12, and the other clamping seat 3 is slidably connected to the movable platform 12 and can slide in the horizontal transverse direction. One of the clamping seats 3 is provided with a centering tip 31 and a driving cylinder 33. The driving cylinder 33 is used to drive the centering tip 31 to telescopically move relative to the base of the clamping seat 3. The other clamping seat 3 is provided with a turntable 32. A loading device for outputting the workpiece a is provided next to the two clamping seats 3. The discharge port of the loading device has a positioning member 4 for positioning the workpiece a. The two clamping seats 3 can move between the positioning member 4 and the engraving and milling head 2 and move from both sides of the positioning member 4 to the bottom of the engraving and milling head 2.

[0035] More specifically, if Figure 2As shown, in this embodiment, the loading device includes a connecting frame 6 and a guide frame 7 fixed on the connecting frame 6, and the guide frame 7 has a guide channel 8 running through it in the vertical direction; the guide frame 7 includes two guide plates 71 arranged opposite to each other in the horizontal direction, and the guide channel 8 is formed between the two guide plates 71; the connecting frame 6 has two guide plates 71 that are respectively connected to the frame 1 in the horizontal direction for sliding, and the two guide plates 71 correspond to the two connecting frames 6 one by one and are fixedly connected. A blanking guide plate 13 for blanking the workpiece a is also fixed on the connecting frame 6, and the feeding end of the blanking guide plate 13 is located between the positioning member 4 and the engraving and milling head 2. As shown in FIG. Figure 3 and Figure 4 As shown, the guide plate 71 is a split structure, including an L-shaped semi-guide plate 1 711 and an L-shaped semi-guide plate 2 712. The semi-guide plate 1 711 is provided with a strip groove 7111 arranged along the width direction of the guide plate 71, and a screw 9 is passed through the strip groove 7111. The inner side of the semi-guide plate 2 712 has a strip-shaped connecting portion, and the screw 9 passes through the semi-guide plate 2 712 and the connecting portion in sequence. The semi-guide plate 1 711 and the semi-guide plate 2 712 are fixedly connected by the above-mentioned screw 9.

[0036] For example Figure 2 、 Figure 3 and Figure 4 As shown, the positioning member 4 includes an L-shaped positioning seat 41 connected to the discharge of the guide frame 7 of the loading device and used to support the workpiece a. The positioning seat 41 is open to the side facing the engraving and milling head 2 and has a vertical positioning surface 411 arranged in the vertical direction and a horizontal positioning surface 412 arranged in the horizontal direction. The discharge of the loading device is also provided with a baffle plate 15 opposite to the positioning seat 41; the baffle plate 15 is provided with a second strip hole 151 arranged in the vertical direction, and a screw 9 is passed through the second strip hole 151. The baffle plate 15 is fixed to the guide frame 7 of the loading device by the screw 9. The positioning seat 41 is provided with a positioning push rod 5 and a driving structure. The positioning push rod 5 is located on the side of the positioning seat 41 facing the engraving and milling head 2. The driving structure can drive the positioning push rod 5 to move and make the positioning push rod 5 higher than the horizontal positioning surface 412. In addition, the driving structure can also drive the positioning push rod 5 to move toward the vertical positioning surface 411. The driving structure includes a rotary cylinder 14 fixed to the lower portion of the positioning seat 41 , and the positioning push rod 5 is fixed on the piston rod of the rotary cylinder 14 .

[0037] The positioning seat 41 is further provided with a vertically arranged strip hole 41a, through which a screw 9 is passed. The positioning seat 41 is fixedly connected to the guide plate 71 of the guide rack 7 via the screw 9. In this embodiment, there are two positioning seats 41, which correspond one to one with the guide plates 71 of the guide rack 7. An adjustment block 10 is fixed to the guide plate 71. The adjustment block 10 is located above the positioning seat 41. A vertically arranged adjustment screw 11 is threadedly connected to the adjustment block 10. The positioning seat 41 has a connecting seat body 413. The adjustment screw 11 passes through the connecting seat body 413 and is axially positioned with the connecting seat body 413 and can rotate circumferentially.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0039] Example 2:

[0040] The technical solution in this embodiment is basically the same as the technical solution in the first embodiment. In the first embodiment, one of the two clamping seats 3 is fixed on the movable platform 12, and the other clamping seat 3 is slidably connected to the movable platform 12. The two connecting frames 6 for adjusting the length of the workpiece a are both slidably connected to the frame 1. In this embodiment, the difference is that the connecting frame 6 close to the fixed clamping seat 3 is slidably connected to the frame 1, and the other connecting frame 6 is fixedly connected to the frame 1. In order to meet the processing needs of workpieces a of different lengths, when the distance between the two connecting frames 6 needs to be adjusted, through the above design, only the position of one connecting frame 6 needs to be adjusted, and the connecting frame 6 can use the above-mentioned fixed clamping seat 3 as a reference, which is convenient and accurate to adjust.

[0041] Although this document frequently uses terms such as machine frame 1, milling head 2, clamping base 3, center 31, turntable 32, positioning member 4, positioning base 41, strip hole 1 41a, vertical positioning surface 411, horizontal positioning surface 412, connecting base body 413, positioning push rod 5, connecting frame 6, guide frame 7, guide plate 71, semi-guide plate 1 711, strip groove 7111, semi-guide plate 2 712, guide channel 8, screw 9, adjustment block 10, adjustment screw 11, movable table 12, blanking guide plate 13, rotary cylinder 14, stop plate 15, strip hole 2 151, and workpiece a, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A milling machine, comprising a frame (1) and a milling head (2), characterized in that: The frame (1) is provided with two clamping seats (3) for clamping the workpiece (a) and capable of relative movement. A loading device for outputting the workpiece (a) is provided next to the two clamping seats (3). A positioning member (4) for positioning the workpiece (a) is provided at the discharge of the loading device. The two clamping seats (3) are capable of moving between the positioning member (4) and the engraving and milling head (2). The positioning member (4) includes a positioning seat (41) connected to the discharge of the loading device and used for supporting the workpiece (a). The positioning seat (41) faces the engraving and milling head (2). One side is open and has a vertical positioning surface (411) arranged in a vertical direction and a horizontal positioning surface (412) arranged in a horizontal direction. A positioning push rod (5) and a driving structure are provided outside the positioning seat (41). The positioning push rod (5) is located on the side of the positioning seat (41) facing the engraving and milling head (2). The driving structure can drive the positioning push rod (5) to move in a rotational or translational manner and make the positioning push rod (5) higher than the horizontal positioning surface (412). In addition, the driving structure can also drive the positioning push rod (5) to move toward the vertical positioning surface (411).

2. The engraving and milling machine according to claim 1, characterized in that: The feeding device comprises a connecting frame (6) and a material guide frame (7) fixed on the connecting frame (6), wherein the material guide frame (7) has a material guide channel (8) running through in a vertical direction; the material guide frame (7) comprises two material guide plates (71) arranged opposite to each other in a horizontal transverse direction, and the material guide channel (8) is formed between the two material guide plates (71); the connecting frame (6) has two material guide plates (71) respectively connected to the frame (1) in a horizontal transverse direction, and the two material guide plates (71) correspond to the two connecting frames (6) one by one and are fixedly connected.

3. The engraving and milling machine according to claim 2, characterized in that: The guide plate (71) is a split structure, comprising a semi-guide plate 1 (711) and a semi-guide plate 2 (712). The semi-guide plate 1 (711) is provided with a strip groove (7111) arranged along the width direction of the guide plate (71). Screws (9) are inserted into the strip groove (7111). The semi-guide plate 1 (711) and the semi-guide plate 2 (712) are fixedly connected by the screws (9).

4. The engraving and milling machine according to claim 2, characterized in that: The positioning seat (41) is provided with a strip hole (41a) arranged in a vertical direction, a screw (9) is passed through the strip hole (41a), and the positioning seat (41) is fixedly connected to the material guide frame (7) through the screw (9).

5. The engraving and milling machine according to claim 2, characterized in that: An adjusting block (10) is fixed on the guide frame (7), and the adjusting block (10) is located above the positioning seat (41). An adjusting screw (11) arranged vertically is threadedly connected to the adjusting block (10). The positioning seat (41) has a connecting seat body (413). The adjusting screw (11) passes through the connecting seat body (413) and is axially positioned with the connecting seat body (413) and can rotate circumferentially.

6. The engraving and milling machine according to claim 1, characterized in that: The frame (1) is slidably connected to a movable platform (12) capable of sliding in a horizontal longitudinal direction. Two clamping seats (3) are arranged on the movable platform (12) at intervals in a horizontal transverse direction and are capable of relative movement in the horizontal transverse direction.

7. The engraving and milling machine according to claim 1, characterized in that: One of the clamping seats (3) is provided with a top (31) and a driving cylinder (33), and the driving cylinder (33) is used to drive the top (31) to move telescopically relative to the seat body of the clamping seat (3).

8. The engraving and milling machine according to claim 2, characterized in that: A baffle plate (15) is provided at the discharge portion of the loading device and is opposite to the positioning seat (41); a second strip hole (151) arranged in a vertical direction is opened on the baffle plate (15), a screw (9) is passed through the second strip hole (151), and the baffle plate (15) is fixedly connected to the guide frame (7) through the screw (9).

9. The engraving and milling machine according to claim 2, characterized in that: A blanking guide plate (13) for blanking a workpiece (a) is fixed on the connecting frame (6), and a feeding end of the blanking guide plate (13) is located between the positioning member (4) and the engraving and milling head (2).

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