Movable tool magazine of multi-head engraving and milling machine

Abstract

The utility model relates to a movable tool magazine of a multi-head engraving and milling machine, which comprises a support, a guide rail and a servo assembly, the support is in sliding fit with the guide rail, a standby tool disc is arranged on the support, a plurality of tool aprons are distributed on the standby tool disc in a rectangular array mode, tool holes are formed in the tool aprons, spring holes are formed in the side walls of the tool holes, springs and limiting beads are arranged in the spring holes, and the limiting beads abut against the springs. The servo assembly is used for driving the support to move along the guide rail, the springs and the limiting balls are arranged in the tool aprons to fix the tools, the springs can be compressed after being stressed, so that tool clamping during tool changing is avoided, the multiple tool aprons are arranged on the standby tool disc, and the capacity of the tool magazine is greatly improved. The structure is simple, the failure rate can be effectively reduced, and meanwhile the cost can be saved.

Description

Technical Field

[0001] This utility model relates to the field of tool magazine technology, specifically to a mobile tool magazine for a multi-head engraving machine. Background Technology

[0002] A multi-head engraving machine is a high-precision CNC machine tool mainly used for carving and sculpting various materials. By having multiple processing heads work simultaneously, the multi-head engraving machine can significantly improve processing efficiency and is suitable for mass production. One multi-head engraving machine can replace multiple single-head engraving machines, saving time and labor costs.

[0003] Current CNC engraving machines have limited tool magazine capacity, making them unsuitable for machining complex or multi-step parts. Frequent tool changes are necessary, significantly increasing machining time and reducing efficiency. Furthermore, the limited variety of tools may not meet the machining needs of different parts, and the use of tool holders to hold the tools increases the risk of jamming. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mobile tool magazine for a multi-head engraving machine.

[0005] The purpose of this utility model can be achieved through the following technical solution: a mobile tool magazine for a multi-head engraving machine, including a bracket, a guide rail, and a servo component. The bracket and the guide rail are slidably coupled. The bracket is provided with a spare tool disc. Multiple tool holders are distributed in a rectangular array on the spare tool disc. Tool holders are provided with tool holes. Spring holes are provided on the side walls of the tool holes. Spring holes are provided with springs and limit beads. Limit beads abut against springs. The servo component is used to drive the bracket to move along the guide rail.

[0006] Preferably, the servo component includes a motor mount, a servo motor mounted on the motor mount, a lead screw connected to the output end of the servo motor, and a lead screw nut threadedly connected to the lead screw at the bottom of the bracket.

[0007] Preferably, the spring hole is internally threaded with an adjusting screw that abuts against the spring.

[0008] Preferably, a tool detection device is provided above the tool preparation disc.

[0009] Preferably, the tool detection device includes a mounting bracket on which a sensor corresponding to the tool holder is mounted.

[0010] Preferably, an automatic tool setter is provided on one side of the tool preparation disc.

[0011] Preferably, a baffle is installed on one side of the bracket.

[0012] The beneficial effects of this utility model are: This utility model fixes the tool by setting a spring and a limiting ball in the tool holder. The spring can be compressed after being subjected to force, thereby avoiding tool jamming when changing tools. Multiple tool holders are set on the tool preparation plate, which greatly increases the capacity of the tool magazine. The structure is relatively simple, which can effectively reduce the failure rate and save costs. Attached Figure Description

[0013] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the movable tool magazine of a multi-head engraving machine according to the present invention.

[0015] Figure 2 This is a cross-sectional view of the movable tool magazine of a multi-head engraving machine according to the present invention.

[0016] Figure 3 for Figure 1 Partial view at point A in the middle.

[0017] Figure 4 This is a cross-sectional view of the tool holder of the mobile tool magazine of a multi-head engraving machine according to the present invention.

[0018] The labels in the diagram represent: 1. Bracket; 2. Guide rail; 3. Servo component; 301. Motor mount; 302. Servo motor; 303. Lead screw; 304. Lead screw nut; 4. Tool holder; 401. Tool holder; 402. Limiting bead; 403. Spring; 404. Adjusting screw; 405. Tool hole; 5. Tool detection device; 501. Fixing bracket; 502. Sensor; 6. Automatic tool setter; 7. Baffle. Detailed Implementation

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] See Figures 1 to 4 As shown, the structure of this utility model is as follows: a mobile tool magazine for a multi-head engraving machine, including a bracket 1, a guide rail 2, and a servo component 3. The guide rail 2 is fixedly installed on the engraving machine, and the bracket 1 and the guide rail 2 are slidably engaged. The bracket 1 is provided with a tool reserve disc 4, and multiple tool holders 401 are distributed in a rectangular array on the tool reserve disc 4. Tool holders 401 are provided with tool holes 405 for positioning and fixing tools. Before processing, the tools needed for processing are inserted into the tool holes 405 in sequence. The side wall of the tool hole 405 is provided with a spring hole, and a spring 403 and a limiting bead 402 are provided in the spring hole. The diameter of one end of the spring hole is slightly smaller than the diameter of the limiting bead 402 to prevent the limiting bead 402 from falling out. When the spring hole is dislodged, the limiting bead 402 abuts against the spring 403. When the tool is inserted into the tool hole 405, the limiting bead 402 is squeezed, causing the spring 403 to compress. After the tool is fully inserted into the tool hole 405, the limiting bead 402 corresponds to the tool groove on the tool. The spring 403 pushes the limiting bead 402 to lock the tool groove and prevent the tool from moving. The servo component 3 is used to drive the bracket 1 to move along the guide rail 2. When changing tools, the servo component 3 drives the bracket 1 to move along the guide rail 2 to the spindle of the engraving machine. Then the spindle places the original tool on the empty tool holder 401. Then the tool to be used in the next process is selected on the tool preparation plate 4. Then the servo component 3 drives the bracket 1 to return to the origin.

[0023] like Figure 2 As shown, the servo component 3 includes a motor base 301 and a servo motor 302 mounted on the motor base 301. The motor base 301 is fixedly mounted on the engraving machine. The output end of the servo motor 302 is connected to a lead screw 303. The servo motor 302 drives the lead screw 303 to rotate. The bottom of the bracket 1 is provided with a lead screw nut 304 that is threadedly connected to the lead screw 303. Through the threaded engagement between the lead screw 303 and the lead screw nut 304, the bracket 1 is driven to move back and forth along the guide rail 2.

[0024] like Figure 4 As shown, an adjusting screw 404 is threaded into the spring hole and abuts against the spring 403. By adjusting the screw 404, the tension of the spring 403 is changed, thereby changing the force exerted by the spring 403 on the limiting bead 402. The greater the force exerted by the spring 403 on the limiting bead 402, the tighter the limiting bead 402 holds the tool; the smaller the force exerted by the spring 403 on the limiting bead 402, the looser the limiting bead 402 holds the tool.

[0025] Furthermore, a tool detection device 5 is provided above the tool preparation disc 4 to detect whether each tool holder 401 on the tool preparation disc 4 is equipped with a tool, so as to avoid tool collision during tool changing.

[0026] like Figure 2 As shown, the tool detection device 5 includes a fixing frame 501, which is installed on the crossbeam of the engraving machine. A sensor 502 corresponding to the tool holder 401 is installed on the fixing frame 501. When the tool preparation disc 4 passes the sensor 502, the sensor 502 starts to detect whether a tool is installed on each row of tool holders 401 in turn. The existing tool magazine has one sensor 502 corresponding to one tool holder 401, resulting in a large number of sensors 502, which makes their wires messy and easy to get tangled. In addition, the sensor 502 is installed at the bottom of the tool holder 401, which is also easy to be sprayed by cooling water, causing water ingress and failure. This utility model installs the sensor 502 above the tool preparation disc 4, with one sensor 502 corresponding to one row of tool holders 401. It is not necessary to install a sensor 502 on each tool holder 401, which can reduce the number of sensors 502 installed, thereby reducing costs, avoiding too many wires of the sensor 502 getting tangled, and also preventing the sensor 502 from being sprayed by cooling water.

[0027] Furthermore, an automatic tool setter 6 is provided on one side of the tool preparation disc 4. After each tool change, the tools on each spindle can be quickly set by the automatic tool setter 6, thereby effectively improving production efficiency.

[0028] Furthermore, a baffle 7 is installed on one side of the bracket 1. Specifically, the baffle 7 is used to prevent cooling water and iron filings from entering the tool preparation disc 4 during processing.

[0029] In practical use, the tools needed for processing are first installed on the tool holder 401 in sequence. When the tool is inserted into the tool holder 401, the limiting bead 402 is squeezed, which compresses the spring 403. After the tool is fully inserted into the tool holder 401, the limiting bead 402 corresponds to the tool groove on the tool. The spring 403 pushes the limiting bead 402 to lock the tool groove and prevent the tool from moving. When changing tools, the servo component 3 drives the bracket 1 to move along the guide rail 2 to the spindle of the engraving machine. The spindle places the original tool on the empty tool holder 401. Then, the tool to be used in the next process is selected from the tool preparation plate 4. After the tool change is completed, the servo component 3 drives the bracket 1 to return to the origin.

[0030] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A mobile tool magazine for a multi-head engraving machine, characterized in that: The system includes a bracket (1), a guide rail (2), and a servo component (3). The bracket (1) and the guide rail (2) are slidably coupled. The bracket (1) is provided with a spare tool disc (4). The spare tool disc (4) has multiple tool holders (401) arranged in a rectangular array. The tool holders (401) have tool holes (405). The side wall of the tool hole (405) is provided with a spring hole. The spring hole is provided with a spring (403) and a limiting bead (402). The limiting bead (402) abuts against the spring (403). The servo component (3) is used to drive the bracket (1) to move along the guide rail (2).

2. The movable tool magazine of a multi-head engraving machine according to claim 1, characterized in that: The servo component (3) includes a motor mount (301) and a servo motor (302) mounted on the motor mount (301). The output end of the servo motor (302) is connected to a lead screw (303). The bottom of the bracket (1) is provided with a lead screw nut (304) that is threadedly connected to the lead screw (303).

3. The movable tool magazine of a multi-head engraving machine according to claim 1, characterized in that: The spring hole is internally threaded with an adjusting screw (404) that abuts against the spring (403).

4. The movable tool magazine of a multi-head engraving machine according to claim 1, characterized in that: A tool detection device (5) is provided above the tool preparation disc (4).

5. The movable tool magazine of a multi-head engraving machine according to claim 4, characterized in that: The tool detection device (5) includes a mounting bracket (501) on which a sensor (502) corresponding to the tool holder (401) is installed.

6. The movable tool magazine of a multi-head engraving machine according to claim 1, characterized in that: An automatic tool setter (6) is provided on one side of the tool preparation disc (4).

7. The movable tool magazine of a multi-head engraving machine according to claim 1, characterized in that: A baffle (7) is installed on one side of the bracket (1).

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