Multi-head engraving and milling machine

Abstract

The utility model relates to a multi-head engraving and milling machine which comprises a machine body, the Y-axis displacement mechanism is installed on the machine body and comprises a workbench connected with the machine body in a sliding mode. The cross beam is mounted on the stand columns; the X-axis displacement mechanism is mounted on the cross beam and comprises a first mounting plate in sliding connection with the cross beam; the Z-axis displacement mechanism is arranged on the first mounting plate at an interval and comprises a second mounting plate which is in sliding connection with the first mounting plate; the main shaft is fixedly mounted on the second mounting plate; the tool magazine assembly is mounted on the machine body; the tool magazine assembly comprises a first support, a standby cutter disc is arranged on the first support, a mechanical arm is arranged above the standby cutter disc, a movable disc used for carrying a cutter handle is movably arranged on the machine body and located on one side of the standby cutter disc, the program controls the mechanical arm to carry a milling cutter on the standby cutter disc to the movable disc, and then the milling cutter is conveyed to the position below the main shaft through the movable disc. Original milling cutters on the main shafts are placed on the movable disc and replaced with new milling cutters on the movable disc, and therefore cutters can be replaced for the multiple main shafts at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving and milling machines, in particular to a multi-head engraving and milling machine. Background Art

[0002] With the rapid development of social production and science and technology, mechanical products are becoming more and more sophisticated and complex, and the demand for frequent modification is high. Milling and engraving machines have solved the problem of complex, precise, small batch and multi-variety parts processing. Processing such products requires frequent modification or adjustment of equipment. Generally, the number of spindles is increased to improve production efficiency. Different processing techniques require different specifications of tools, so tools need to be replaced to meet processing needs. The existing automatic tool changing mechanism is generally only suitable for single-spindle milling and engraving machines. It is impossible to replace tools for multiple spindles at the same time, so it is usually replaced manually. The operation is extremely cumbersome and takes a long time to replace, which greatly reduces the working efficiency of the milling and engraving machine and increases production costs. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a multi-head engraving and milling machine.

[0004] The purpose of the utility model can be achieved through the following technical scheme: a multi-head engraving and milling machine, including a machine body; a Y-axis displacement mechanism, installed on the machine body, including a workbench slidably connected to the machine body; columns, installed on both sides of the workbench; a crossbeam, installed on the columns; an X-axis displacement mechanism, installed on the crossbeam, including a first mounting plate slidably connected to the crossbeam; a Z-axis displacement mechanism, arranged at intervals on the first mounting plate, including a second mounting plate slidably connected to the first mounting plate; a spindle, fixedly mounted on the second mounting plate; a tool magazine assembly, installed on the machine body; the tool magazine assembly includes a first bracket, a standby tool disc is provided on the first bracket, a mechanical arm is provided above the standby tool disc, and a movable disc for carrying a tool handle is movably provided on one side of the standby tool disc on the machine body.

[0005] Preferably, the Y-axis displacement mechanism also includes a first screw rod rotatably arranged on the machine body, a first screw rod nut threadedly connected to the first screw rod is provided at the bottom of the workbench, and a first servo motor for driving the first screw rod to rotate is provided at one end of the first screw rod.

[0006] Preferably, the X-axis displacement mechanism also includes a second screw rod rotatably arranged on the crossbeam, two first mounting plates are provided, both first mounting plates are provided with a second screw rod nut threadedly connected to the second screw rod, and one end of the second screw rod is provided with a second servo motor for driving the second screw rod to rotate.

[0007] Preferably, an anti-collision support is provided on one side of the cross beam located on the second screw nut, and an anti-collision rubber pad is installed on the anti-collision support.

[0008] Preferably, the Z-axis displacement mechanism also includes a third screw rod rotatably connected to the first mounting plate, a third screw rod nut threadedly connected to the third screw rod is provided on the second mounting plate, and a third servo motor for driving the third screw rod to rotate is provided at one end of the third screw rod.

[0009] Preferably, the robotic arm includes a first sliding plate slidably connected to the first bracket, the first bracket is provided with a first driving assembly for driving the first sliding plate to move along the Y-axis direction, the first sliding plate is slidably connected to the second sliding plate, the first sliding plate is provided with a second driving assembly for driving the second sliding plate to move along the X-axis direction, the second sliding plate is vertically slidably connected to the third sliding plate, the third sliding plate is provided with a clamping claw assembly installed at intervals, and the second sliding plate is provided with a third driving assembly for driving the third sliding plate to move along the Z-axis direction.

[0010] Preferably, the first drive assembly, the second drive assembly and the third drive assembly all include a fourth screw rod, and the first sliding plate, the second sliding plate and the third sliding plate are all provided with a fourth screw rod nut threadedly connected to the fourth screw rod, and one end of the fourth screw rod is provided with a fourth servo motor for driving it to rotate.

[0011] Preferably, the clamping jaw assembly includes a fixed seat, a positioning sleeve is installed at the bottom of the fixed seat, a tapered hole matching the tool handle is provided in the positioning sleeve, a push block is provided above the tapered hole, a cylinder for driving the push block to move is provided at the top of the fixed seat, inclined blocks are slidably connected on both sides of the push block, and the clamping jaws are installed on the inclined blocks.

[0012] Preferably, the moving plate includes a second bracket slidably connected to the machine body, a fourth driving assembly for driving the second bracket to move is provided on the machine body, a tool handle bracket is provided at intervals on the second bracket, a first tool holder and a second tool holder are provided side by side on the tool handle bracket, and an automatic tool setting instrument is installed on one side of the first tool holder and the second tool holder.

[0013] Preferably, the fourth driving assembly includes a fifth screw rod rotatably connected to the machine body, a fifth screw rod nut threadedly connected to the fifth screw rod is provided on the second bracket, and a fifth servo motor for driving the fifth screw rod to rotate is provided at one end of the fifth screw rod.

[0014] The beneficial effect of the utility model is that the utility model moves the milling cutter on the standby cutter disc to the moving disc through the mechanical arm, and then transports the milling cutter to the bottom of the main shaft through the moving disc, places the original milling cutter on the main shaft on the moving disc and replaces it with the new milling cutter on the moving disc, thereby realizing the simultaneous replacement of tools for multiple main shafts, greatly reducing the tool changing time, and thus effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0016] Figure 1 The utility model is a structural schematic diagram of a multi-head engraving and milling machine.

[0017] Figure 2 The utility model is a schematic diagram of the Y-axis displacement mechanism structure of a multi-head engraving and milling machine.

[0018] Figure 3 The utility model is a schematic diagram of the X-axis displacement mechanism structure of a multi-head engraving and milling machine.

[0019] Figure 4 The utility model is a schematic diagram of the Z-axis displacement mechanism structure of a multi-head engraving and milling machine.

[0020] Figure 5 The utility model is a schematic diagram of the structure of a tool magazine component of a multi-head engraving and milling machine.

[0021] Figure 6 The utility model is a schematic diagram of the mechanical arm structure of a multi-head engraving and milling machine.

[0022] Figure 7 The utility model is a schematic diagram of the structure of a moving disk of a multi-head engraving and milling machine.

[0023] Figure 8 for Figure 5 Partial schematic diagram at point A in the middle.

[0024] The numbers shown in the figure are as follows: 1, machine body; 2, Y-axis displacement mechanism; 201, workbench; 202, first screw rod; 203, first screw rod nut; 204, first servo motor; 3, column; 4, crossbeam; 5, X-axis displacement mechanism; 501, first mounting plate; 502, second screw rod; 503, second screw rod nut; 504, second servo motor; 505, anti-collision support; 506, anti-collision rubber pad; 6, Z-axis displacement mechanism; 601, second mounting plate; 602, third screw rod; 603, third screw rod nut; 604, third servo motor; 7, spindle; 8, tool magazine assembly; 801, first bracket; 802, spare tool disc; 9, mechanical arm; 901, first sliding plate; 902, first driving assembly; 903, second sliding plate; 904, second driving assembly; 905, third sliding plate; 906, third driving assembly; 10, clamping jaw assembly; 1001, fixing seat; 1002, positioning sleeve; 1003, tapered hole; 1004, pushing block; 1005, inclined block; 1006, clamping jaw; 1007, cylinder; 11, moving disc; 1101, second bracket; 1102, fourth driving assembly; 1103, tool holder bracket; 1104, first tool holder; 1105, second tool holder; 1106, automatic tool setting instrument. DETAILED DESCRIPTION

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0027] The following will be combined with specific embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0028] See also Figures 1 to 8 As shown, the structure of the utility model is as follows: a multi-head engraving and milling machine, including a machine body 1; a Y-axis displacement mechanism 2, mounted on the machine body 1, including a workbench 201 slidably connected to the machine body 1; a column 3, mounted on both sides of the workbench 201; a beam 4, mounted on the column 3; an X-axis displacement mechanism 5, mounted on the beam 4, including a first mounting plate 501 slidably connected to the beam 4; a Z-axis displacement mechanism 6, spaced apart on the first mounting plate 501, including a second mounting plate 601 slidably connected to the first mounting plate 501; a spindle 7, fixedly mounted on the second mounting plate 601; a tool magazine assembly 8, mounted on the machine body 1; the tool magazine assembly 8 includes a first bracket 801, a standby tool disc 802 is provided on the first bracket 801, a mechanical arm 9 is provided above the standby tool disc 802, and a mechanical arm 9 is movable on one side of the standby tool disc 802 on the machine body 1 A movable disk 11 for carrying the tool handle is provided. Specifically, the workpiece to be processed is first fixed on the workbench 201, and the milling cutters required for processing are placed on the preparation tool disk 802 in sequence, and then the set program is imported into the machine tool, and then the X-axis displacement mechanism 5, the Y-axis displacement mechanism 2, and the Z-axis displacement mechanism 6 are controlled by the program to drive the milling cutter mechanical engraving and milling work. When changing the tool, the program controls the robot arm 9 to carry the milling cutter on the preparation tool disk 802 to the movable disk 11, and then the movable disk 11 transports the milling cutter to the bottom of the spindle 7, and then the Z-axis displacement mechanism 6 drives the spindle 7 to move downward, and the original milling cutter on the spindle 7 is placed on the movable disk 11, and then the new milling cutter on the movable disk 11 is replaced, and then the movable disk 11 carries the replaced milling cutter to the bottom of the robot arm 9, and then the robot arm 9 carries the milling cutter on the movable disk 11 to the preparation tool disk 802.

[0029] like Figure 2 As shown, the Y-axis displacement mechanism 2 also includes a first screw rod 202 rotatably arranged on the body 1, a first screw rod nut 203 threadedly connected to the first screw rod 202 is provided at the bottom of the workbench 201, and one end of the first screw rod 202 is provided with a first servo motor 204 for driving the first screw rod 202 to rotate. Specifically, the first servo motor 204 drives the first screw rod 202 to rotate, and the first screw rod 202 is threadedly connected to the first screw rod nut 203, thereby driving the workbench 201 to move forward and backward along the body 1.

[0030] like Figure 3As shown, the X-axis displacement mechanism 5 also includes a second screw rod 502 rotatably arranged on the beam 4, and two first mounting plates 501 are provided. The two first mounting plates 501 are each provided with a second screw rod nut 503 threadedly connected to the second screw rod 502, and one end of the second screw rod 502 is provided with a second servo motor 504 for driving the second screw rod 502 to rotate. Specifically, the second servo motor 504 drives the second screw rod 502 to rotate, and the second screw rod 502 is threadedly connected to the second screw rod nut 503, thereby driving the two first mounting plates 501 to move left and right along the beam 4.

[0031] like Figure 3 As shown, an anti-collision support 505 is provided on the beam 4 on one side of the second screw nut 503, and an anti-collision rubber pad 506 is installed on the anti-collision support 505. Specifically, the anti-collision rubber pad 506 plays a buffering role to prevent collision from affecting the accuracy of the second screw 502 and the second screw nut 503.

[0032] like Figure 4 As shown, the Z-axis displacement mechanism 6 also includes a third screw rod 602 rotatably connected to the first mounting plate 501, a third screw rod nut 603 threadedly connected to the third screw rod 602 is provided on the second mounting plate 601, and a third servo motor 604 for driving the third screw rod 602 to rotate is provided at one end thereof. Specifically, the third servo motor 604 drives the third screw rod 602 to rotate, and the second mounting plate 601 is driven to move up and down along the first mounting plate 501 through the threaded connection between the third screw rod 602 and the third screw rod nut 603.

[0033] like Figure 5 , Figure 6 As shown, the robot arm 9 includes a first sliding plate 901 slidably connected to the first bracket 801, a first driving assembly 902 for driving the first sliding plate 901 to move along the Y-axis direction is provided on the first bracket 801, a second sliding plate 903 is slidably connected to the first sliding plate 901, a second driving assembly 904 for driving the second sliding plate 903 to move along the X-axis direction is provided on the first sliding plate 901, a third sliding plate 905 is vertically slidably connected to the second sliding plate 903, a clamping jaw assembly 10 is installed on the third sliding plate 905 at intervals, and a third driving assembly 906 for driving the third sliding plate 905 to move along the Y-axis direction and the Z-axis direction is provided on the second sliding plate 903. Specifically, the first driving assembly 902 drives the first sliding plate 901 to slide forward and backward along the first bracket 801, the second driving assembly 904 drives the second sliding plate 903 to slide left and right along the first sliding plate 901, and the third driving assembly 906 drives the third sliding plate 905 to slide up and down along the second sliding plate 903, thereby driving the clamping jaw assembly 10 to carry the tool handle.

[0034] like Figure 6As shown, the first drive assembly 902, the second drive assembly 904, and the third drive assembly 906 all include a fourth screw rod, and the first sliding plate 901, the second sliding plate 903, and the third sliding plate 905 are all provided with a fourth screw rod nut threadedly connected to the fourth screw rod, and one end of the fourth screw rod is provided with a fourth servo motor driving the fourth screw rod to rotate. Specifically, each fourth servo motor drives each fourth screw rod to rotate, and the first sliding plate 901, the second sliding plate 903, and the third sliding plate 905 are driven to move respectively through the fourth screw rod and the fourth screw rod nut threaded connection.

[0035] like Figure 7 As shown, the clamping jaw assembly 10 includes a fixed seat 1001, a positioning sleeve 1002 is installed at the bottom of the fixed seat 1001, a tapered hole 1003 matching the tool handle is provided in the positioning sleeve 1002, a push block 1004 is provided above the tapered hole 1003, a cylinder 1007 for driving the push block 1004 to move is provided at the top of the fixed seat 1001, inclined blocks 1005 are slidably connected on both sides of the push block 1004, and a clamping jaw 1006 is installed on the inclined block 1005. Specifically, grooves are provided on the two surfaces of the push block 1004 that contact the inclined block 1005, and springs that abut against the push block 1004 and the inclined block 1005 are provided in the grooves. The robot arm 9 drives the positioning sleeve 1002 to move to the position of the tool handle and covers the tool handle. Then the cylinder 1007 drives the push block 1004 to move downward, driving the inclined block 1005 to move toward the middle, so that the clamping jaws 1006 close and clamp the tool handle. At the same time, the elastic force of the spring pushes the inclined block 1005 to prevent the inclined block 1005 from moving downward with the push block 1004. Then the sensor will detect whether the tool handle is successfully clamped. Then the robot arm 9 in the tool magazine system lifts the tool handle and transports it to the specified position. Then the cylinder 1007 drives the push block 1004 to move upward, pushing the inclined block 1005 to move to both sides, and compressing the spring to open the clamping jaws 1006 to release the tool handle.

[0036] like Figure 5 , Figure 8As shown, the moving disc 11 includes a second bracket 1101 slidably connected to the machine body 1, a fourth driving assembly 1102 for driving the second bracket 1101 to move is provided on the machine body 1, a tool holder bracket 1103 is provided on the second bracket 1101, a first tool holder 1104 and a second tool holder 1105 are provided side by side on the tool holder bracket 1103, an automatic tool setting instrument 1106 is installed on one side of the first tool holder 1104 and the second tool holder 1105, and specifically, when changing the tool, the robot arm 9 moves the milling machine on the cutter disc The tool is moved to the first tool holder 1104, and then the fourth drive assembly 1102 drives the second bracket 1101 to move to under the spindle 7, and then the original milling cutter is placed on the second tool holder 1105, and then the milling cutter on the first bracket 801 is replaced, and then the spindle 7 drives the milling cutter to move to the automatic tool setting device 1106 for tool setting, and then the fourth drive assembly 1102 drives the second bracket 1101 to return to under the robot 9, and the robot 9 transfers the milling cutter on the second tool holder 1105 to the tool disc.

[0037] like Figure 5 As shown, the fourth driving assembly 1102 includes a fifth screw rod rotatably connected to the body 1, a fifth screw rod nut threadedly connected to the fifth screw rod is provided on the second bracket 1101, and a fifth servo motor for driving the fifth screw rod to rotate is provided at one end of the fifth screw rod. Specifically, the fifth servo motor drives the fifth screw rod to rotate, and the second bracket 1101 is driven to move along the body 1 through the threaded connection between the fifth screw rod and the fifth screw rod nut.

[0038] During specific use, first fix the workpiece to be processed on the workbench 201, place the milling cutters needed for processing on the preparation tool disk 802 in sequence, then import the set program into the machine tool, and install the milling cutter on the spindle 7, then control the X-axis displacement mechanism 5, the Y-axis displacement mechanism 2, and the Z-axis displacement mechanism 6 through the program to drive the milling cutter to perform engraving and milling work. When changing the tool, control the robot arm 9 through the program to move the milling cutter on the preparation tool disk 802 to the moving disk 11, and then the moving disk 11 transports the milling cutter to the bottom of the spindle 7, and then the Z-axis displacement mechanism 6 drives the spindle 7 to move downward, and places the original milling cutter on the spindle 7 on the moving disk 11, and then replaces the new milling cutter on the moving disk 11, and then the moving disk 11 transports the replaced milling cutter to the bottom of the robot arm 9, and then the robot arm 9 transports the milling cutter on the moving disk 11 to the preparation tool disk 802.

[0039] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A multi-head engraving and milling machine, characterized in that: including body (1); A Y-axis displacement mechanism (2) is mounted on the machine body (1), comprising a workbench (201) slidably connected to the machine body (1); Columns (3) installed on both sides of the workbench (201); A crossbeam (4) mounted on the column (3); An X-axis displacement mechanism (5) is mounted on the crossbeam (4), comprising a first mounting plate (501) slidably connected to the crossbeam (4); A Z-axis displacement mechanism (6) is arranged at intervals on the first mounting plate (501), comprising a second mounting plate (601) slidably connected to the first mounting plate (501); A main shaft (7) fixedly mounted on the second mounting plate (601); A tool magazine assembly (8) mounted on the machine body (1); The tool magazine assembly (8) comprises a first bracket (801), a standby tool disc (802) is provided on the first bracket (801), a mechanical arm (9) is provided above the standby tool disc (802), and a movable disc (11) for carrying a tool handle is movably provided on one side of the standby tool disc (802) on the machine body (1).

2. A multi-head engraving and milling machine according to claim 1, characterized in that: The Y-axis displacement mechanism (2) further comprises a first screw rod (202) rotatably arranged on the machine body (1); a first screw rod nut (203) threadedly connected to the first screw rod (202) is provided at the bottom of the workbench (201); and a first servo motor (204) for driving the first screw rod (202) to rotate is provided at one end of the first screw rod (202).

3. A multi-head engraving and milling machine according to claim 1, characterized in that: The X-axis displacement mechanism (5) further comprises a second screw rod (502) rotatably arranged on the crossbeam (4); two first mounting plates (501) are provided; both first mounting plates (501) are provided with a second screw rod nut (503) threadedly connected to the second screw rod (502); and one end of the second screw rod (502) is provided with a second servo motor (504) for driving the second screw rod (502) to rotate.

4. A multi-head engraving and milling machine according to claim 3, characterized in that: An anti-collision support (505) is provided on the crossbeam (4) at one side of the second screw nut (503), and an anti-collision rubber pad (506) is installed on the anti-collision support (505).

5. The multi-head engraving and milling machine according to claim 3, characterized in that: The Z-axis displacement mechanism (6) further comprises a third screw rod (602) rotatably connected to the first mounting plate (501); a third screw rod nut (603) threadedly connected to the third screw rod (602) is provided on the second mounting plate (601); and a third servo motor (604) for driving the third screw rod (602) to rotate is provided at one end thereof.

6. A multi-head engraving and milling machine according to claim 1, characterized in that: The mechanical arm (9) comprises a first sliding plate (901) slidably connected to a first bracket (801); a first driving assembly (902) for driving the first sliding plate (901) to move along the Y-axis direction is provided on the first bracket (801); a second sliding plate (903) is slidably connected to the first sliding plate (901); a second driving assembly (904) for driving the second sliding plate (903) to move along the X-axis direction is provided on the first sliding plate (901); a third sliding plate (905) is vertically slidably connected to the second sliding plate (903); a clamping claw assembly (10) is installed on the third sliding plate (905) at intervals; and a third driving assembly (906) for driving the third sliding plate (905) to move along the Z-axis direction is provided on the second sliding plate (903).

7. A multi-head engraving and milling machine according to claim 6, characterized in that: The first drive assembly (902), the second drive assembly (904) and the third drive assembly (906) all comprise a fourth screw rod; the first sliding plate (901), the second sliding plate (903) and the third sliding plate (905) are all provided with a fourth screw rod nut threadedly connected to the fourth screw rod; and one end of the fourth screw rod is provided with a fourth servo motor for driving the fourth screw rod to rotate.

8. The multi-head engraving and milling machine according to claim 6, characterized in that: The clamping jaw assembly (10) comprises a fixed seat (1001), a positioning sleeve (1002) is installed at the bottom of the fixed seat (1001), a tapered hole (1003) matching the tool handle is provided in the positioning sleeve (1002), a push block (1004) is provided above the tapered hole (1003), a cylinder (1007) for driving the push block (1004) to move is provided at the top of the fixed seat (1001), inclined blocks (1005) are slidably engaged on both sides of the push block (1004), and a clamping jaw (1006) is installed on the inclined block (1005).

9. The multi-head engraving and milling machine according to claim 1, characterized in that: The movable plate (11) comprises a second bracket (1101) slidably connected to the machine body (1); a fourth driving assembly (1102) for driving the second bracket (1101) to move is provided on the machine body (1); a tool holder bracket (1103) is provided on the second bracket (1101) at intervals; a first tool holder (1104) and a second tool holder (1105) are provided side by side on the tool holder bracket (1103); an automatic tool setting instrument (1106) is installed on one side of the first tool holder (1104) and the second tool holder (1105).

10. A multi-head engraving and milling machine according to claim 9, characterized in that: The fourth drive assembly (1102) comprises a fifth screw rod rotatably connected to the machine body (1); the second bracket (1101) is provided with a fifth screw rod nut threadably connected to the fifth screw rod; one end of the fifth screw rod is provided with a fifth servo motor for driving the fifth screw rod to rotate.

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