Automatic tool changing mechanism for false tooth engraving and milling machine

Abstract

The utility model belongs to the technical field of mechanical equipment, and discloses an automatic tool changing mechanism for a false tooth engraving and milling machine, which comprises a top plate, a clamping tool apron and tools, the clamping tool apron is mounted on the lower surface of the top plate, and a tool changing mechanism for driving a plurality of groups of tools to be mounted is mounted on the lower surface of the top plate. A dismounting mechanism is arranged on the side, close to the clamping tool apron, of the tool changing mechanism, a limiting mechanism is installed in the dismounting mechanism, the tool changing mechanism is started to drive a tool matched with the interior of the clamping tool apron to move, and the tool matched with the interior of the clamping tool apron is clamped into the clamping tool apron; and the device replaces manual tool taking to install the tool into the clamping tool apron, so that the time consumed for tool replacement of the device is shortened, and the production efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to an automatic tool changing mechanism for a denture carving and milling machine. Background Art

[0002] Engraving and milling machine is a kind of CNC machine tool, which is the CNC machine tool corresponding to the traditional engraving machine. Most people think that engraving and milling machine is a CNC milling machine that uses small tools, high-power and high-speed spindle motors. The advantage of engraving machine is carving. If the hardness of the processing material is relatively large, it will appear to be unable to do it. The emergence of engraving and milling machine can be said to fill the gap between the two. Engraving and milling machine can be used for both engraving and milling. It is a high-efficiency and high-precision CNC machine tool.

[0003] In the process of implementing this application, it was found that the technology has the following problems: the replacement of engraving and milling cutters in the existing technology generally adopts manual intervention replacement, which reduces the production efficiency of the engraving and milling machine due to tool replacement during the production process, thereby reducing the practicality of the equipment.

[0004] For this purpose, an automatic tool changing mechanism for a denture carving and milling machine is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the replacement of engraving and milling cutters in the existing technology generally adopts manual intervention, which reduces the production efficiency of the engraving and milling machine due to the tool change during the production process. The utility model provides an automatic tool changing mechanism for a denture engraving and milling machine.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] An automatic tool changing mechanism for a denture engraving and milling machine comprises a top plate, a clamping tool holder and a tool, wherein the clamping tool holder is mounted on the lower surface of the top plate, a tool changing mechanism for driving multiple groups of tools for installation is mounted on the lower surface of the top plate, a disassembly mechanism is arranged on a side of the tool changing mechanism close to the clamping tool holder, and a limiting mechanism is installed inside the disassembly mechanism.

[0008] Furthermore, the tool changing mechanism includes a U-shaped fixing plate, which is mounted on the lower surface of the top plate, and a motor is provided on the side of the U-shaped fixing plate away from the clamping tool seat, and through holes are provided on the inner walls on the left and right sides of the U-shaped fixing plate, and screws are rotatably connected inside the two groups of through holes of the U-shaped fixing plate, and the output shaft of the motor passes through the left through hole of the U-shaped fixing plate and is installed on the left side of the screw, and the external thread of the screw is connected to a slider, and the upper surface of the slider abuts against the top of the inner wall of the U-shaped fixing plate, and an electric telescopic rod is installed on the lower surface of the slider, and a fixing plate is installed on the output end of the electric telescopic rod, and a storage box is provided on the upper surface of the fixing plate, and a plurality of groups of positioning grooves are provided on the upper surface of the storage box, and a plurality of groups of the cutting tools are respectively clamped in the plurality of groups of positioning grooves of the storage box.

[0009] Furthermore, the disassembly mechanism includes a connecting plate and a clamping block, a clamping slot is provided on a side of the fixing plate away from the electric telescopic rod, the clamping block is clamped in the clamping slot of the fixing plate, the connecting plate is installed on a side of the clamping block away from the fixing plate, a clamping slot is provided on a side of the connecting plate away from the tool changing mechanism, a bidirectional electric telescopic rod is installed in the clamping slot of the connecting plate, and L-shaped fixing plates are installed at the output ends on both the front and rear sides of the bidirectional electric telescopic rod.

[0010] Furthermore, anti-slip pads are bonded to adjacent sides of the two groups of L-shaped fixing plates.

[0011] Furthermore, the limiting mechanism includes an L-shaped limiting plate, which is installed on the side of the bidirectional electric telescopic rod away from the fixed plate. A positioning hole is provided on the upper surface of the L-shaped limiting plate, and the position of the upper end of the positioning hole is kept parallel to the adjacent side of the two groups of L-shaped fixed plates.

[0012] Furthermore, a groove is formed on a side of the card block away from the connecting plate, a magnetic block is installed inside the groove of the card block, and a side of the magnetic block away from the card block is adsorbed on an inner wall of the storage box away from the card block.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model starts the motor to drive the electric telescopic rod and the fixed plate to move left and right at the lower end of the top plate, so that the fixed plate drives multiple sets of cutting tools to move synchronously during the left and right movement. When the matching cutting tool moves to the lower end of the clamping tool holder, the electric telescopic rod is started to clamp the matching cutting tool to the inside of the clamping tool holder, so that the device replaces manual picking up of the cutting tool to install the cutting tool to the inside of the clamping tool holder, thereby shortening the time spent on changing the cutting tool of the device, and thus improving the production efficiency of the device.

[0015] 2. The utility model starts the tool changing mechanism to drive the two groups of L-shaped fixing plates to move, and moves the adjacent sides of the two groups of L-shaped fixing plates to the front and rear sides of the tool at the lower end of the clamping tool holder respectively, and then starts the two-way electric telescopic rod to drive the two groups of L-shaped fixing plates to move, and makes the adjacent sides of the two groups of L-shaped fixing plates abut against the front and rear sides of the tool at the lower end of the clamping tool holder respectively, and starts the tool changing mechanism to drive the two groups of L-shaped fixing plates and the tool at the lower end of the clamping tool holder clamped between the two groups of L-shaped fixing plates to move downward, so that the device can automatically complete the entire tool changing process during use, thereby reducing the labor cost consumed by the device during use, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front structural schematic diagram of the utility model;

[0017] Figure 2 It is a side structural schematic diagram of the disassembly mechanism of the utility model;

[0018] Figure 3 It is a front structural schematic diagram of the disassembly mechanism of the utility model.

[0019] : 1. top plate; 2. clamping tool holder; 3. tool changing mechanism; 301. U-shaped fixing plate; 302. motor; 303. slider; 304. screw; 305. electric telescopic rod; 306. fixing plate; 307. storage box; 308. tool; 4. disassembly mechanism; 401. L-shaped fixing plate; 402. two-way electric telescopic rod; 403. connecting plate; 404. block; 5. anti-slip pad; 6. limiting mechanism; 601. L-shaped limiting plate; 602. positioning hole; 7. magnetic block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 3 As shown, an automatic tool changing mechanism for a denture engraving and milling machine includes a top plate 1, a clamping tool holder 2 and a tool 308. The clamping tool holder 2 is installed on the lower surface of the top plate 1, and a tool changing mechanism 3 for driving multiple sets of tools 308 for installation is installed on the lower surface of the top plate 1. A disassembly mechanism 4 is provided on the side of the tool changing mechanism 3 close to the clamping tool holder 2, and a limiting mechanism 6 is installed inside the disassembly mechanism 4; specifically, the tool 308 matched inside the clamping tool holder 2 is driven to move by starting the tool changing mechanism 3, and the tool 308 matched inside the clamping tool holder 2 is clamped to the inside of the clamping tool holder 2, so that the device replaces manual picking up of the tool to install the tool inside the clamping tool holder 2, thereby shortening the time spent by the device in replacing the tool, thereby improving the production efficiency of the device.

[0025] like Figure 1 As shown, the tool changing mechanism 3 includes a U-shaped fixing plate 301, which is mounted on the lower surface of the top plate 1, and a motor 302 is arranged on the side of the U-shaped fixing plate 301 away from the clamping tool holder 2. Through holes are provided on the inner walls on the left and right sides of the U-shaped fixing plate 301, and screws 304 are rotatably connected inside the two groups of through holes of the U-shaped fixing plate 301. The output shaft of the motor 302 passes through the left through hole of the U-shaped fixing plate 301 and is installed on the left side of the screw 304. The external thread of the screw 304 is connected with a slider 303, and the upper surface of the slider 303 abuts against the top of the inner wall of the U-shaped fixing plate 301. An electric telescopic rod 305 is installed on the lower surface of the slider 303, and a fixing plate 306 is installed on the output end of the electric telescopic rod 305. A storage box 307 is provided on the upper surface of the fixing plate 306, and a plurality of groups of positioning grooves are provided on the upper surface of the storage box 307. A plurality of groups of tools 308 are respectively clamped inside the plurality of groups of positioning grooves of the storage box 307.

[0026] Specifically, after the tool at the lower end of the clamping tool holder 2 is disassembled and moved, the motor 302 is started to drive the electric telescopic rod 305 and the fixed plate 306 to move left and right at the lower end of the top plate 1, so that the fixed plate 306 synchronously drives multiple groups of tools 308 to move during the left and right movement. When the adapted tool 308 moves to the lower end of the clamping tool holder 2, the electric telescopic rod 305 is started to clamp the adapted tool 308 into the inside of the clamping tool holder 2, so that the device replaces manual picking up of the tool to install the tool into the inside of the clamping tool holder 2, thereby shortening the time spent by the device in replacing the tool, and thus improving the production efficiency of the device.

[0027] like Figures 1 to 3 As shown, the disassembly mechanism 4 includes a connecting plate 403 and a clamping block 404. A clamping slot is provided on a side of the fixing plate 306 away from the electric telescopic rod 305. The clamping block 404 is clamped inside the clamping slot of the fixing plate 306. The connecting plate 403 is installed on a side of the clamping block 404 away from the fixing plate 306. A clamping slot is provided on a side of the connecting plate 403 away from the tool changing mechanism 3. A bidirectional electric telescopic rod 402 is installed inside the clamping slot of the connecting plate 403. L-shaped fixing plates 401 are installed on the output ends of the front and rear sides of the bidirectional electric telescopic rod 402.

[0028] Specifically, before the tool at the lower end of the clamping tool holder 2 is disassembled and moved, the two groups of L-shaped fixing plates 401 are driven to move by starting the tool changing mechanism 3, and the adjacent sides of the two groups of L-shaped fixing plates 401 are respectively moved to the front and rear sides of the tool at the lower end of the clamping tool holder 2, and then the two groups of L-shaped fixing plates 401 are driven to move by starting the two-way electric telescopic rod 402, and the adjacent sides of the two groups of L-shaped fixing plates 401 are respectively abutted against the front and rear sides of the tool at the lower end of the clamping tool holder 2, and the two groups of L-shaped fixing plates 401 and the tool at the lower end of the clamping tool holder 2 are driven downward by starting the tool changing mechanism 3, so that the device can automatically complete the entire tool changing process during use, thereby reducing the labor cost consumed by the device during use, thereby improving the practicality of the device.

[0029] At the same time, by clamping the clamping block 404 in the clamping slot of the fixing plate 306, the disassembly mechanism 4 and the tool changing mechanism 3 can be disassembled during use, and the tool changing mechanism 3 or the disassembly mechanism 4 can be disassembled and replaced after damage, thereby reducing the subsequent maintenance cost of the device.

[0030] like Figure 2As shown, the adjacent sides of the two groups of L-shaped fixing plates 401 are bonded with anti-skid pads 5; specifically, the positions of the two groups of anti-skid pads 5 are set between the two groups of L-shaped fixing plates 401 and the contact surface of the tool at the lower end of the clamping tool holder 2, so that the two groups of anti-skid pads 5 increase the friction between the two groups of L-shaped fixing plates 401 and the tool at the lower end of the clamping tool holder 2, thereby minimizing the sliding of the tool at the lower end of the clamping tool holder 2 between the two groups of L-shaped fixing plates 401 during the subsequent process of clamping and disassembling the tool at the lower end of the movable clamping tool holder 2 by the two groups of L-shaped fixing plates 401, thereby reducing the time spent by the subsequent disassembly mechanism 4 in disassembling the tool at the lower end of the movable clamping tool holder 2.

[0031] like Figure 2 and Figure 3 As shown, the limiting mechanism 6 includes an L-shaped limiting plate 601, which is installed on the side of the two-way electric telescopic rod 402 away from the fixed plate 306. A positioning hole 602 is opened on the upper surface of the L-shaped limiting plate 601, and the position of the upper end of the positioning hole 602 is parallel to the adjacent side of the two groups of L-shaped fixed plates 401; specifically, when the two groups of L-shaped fixed plates 401 clamp the tool inside the clamping tool holder 2, the L-shaped limiting plate 601 is driven to move by starting the tool changing mechanism 3, and the tool at the lower end of the clamping tool holder 2 is clamped in the positioning hole 602, so that the limiting mechanism 6 limits the falling position of the tool at the lower end of the clamping tool holder 2 between the two groups of L-shaped fixed plates 401, thereby minimizing the possibility that the tool will slip to the ground when the subsequent staff takes the tool between the two groups of L-shaped fixed plates 401.

[0032] like Figure 3 As shown, a groove is provided on the side of the card block 404 away from the connecting plate 403, and a magnet 7 is installed inside the groove of the card block 404. The side of the magnet 7 away from the card block 404 is adsorbed on the inner wall of the storage box 307 away from the card block 404. Specifically, the card block 404 and the magnet 7 are moved by pushing the connecting plate 403, and the side of the magnet 7 away from the card block 404 is adsorbed on the inner wall of the storage box 307 away from the card block 404, so that the magnet 7 limits the moving position of the card block 404 inside the card slot of the fixed plate 306, thereby minimizing the movement of the disassembly mechanism 4 during use.

[0033] In summary: by starting the motor 302, the electric telescopic rod 305 and the fixed plate 306 are driven to move left and right at the lower end of the top plate 1, so that the fixed plate 306 synchronously drives multiple sets of cutting tools 308 to move during the left and right movement. When the matching cutting tool 308 moves to the lower end of the clamping tool holder 2, the electric telescopic rod 305 is started to clamp the matching cutting tool 308 to the inside of the clamping tool holder 2, so that the device replaces manual picking up of the cutting tool to install the cutting tool to the inside of the clamping tool holder 2, thereby shortening the time spent by the device in changing the cutting tool, thereby improving the production efficiency of the device; by starting the tool changing mechanism 3, the two sets of L-shaped fixed plates are driven 401 is moved, and the adjacent sides of the two groups of L-shaped fixing plates 401 are respectively moved to the front and rear sides of the lower end tool of the clamping tool holder 2, and then the two groups of L-shaped fixing plates 401 are driven to move by starting the two-way electric telescopic rod 402, and the adjacent sides of the two groups of L-shaped fixing plates 401 are respectively abutted against the front and rear sides of the lower end tool of the clamping tool holder 2, and the two groups of L-shaped fixing plates 401 and the tool at the lower end of the clamping tool holder 2 are driven downward by starting the tool changing mechanism 3, so that the device can automatically complete the entire tool changing process during use, thereby reducing the labor cost consumed by the device during use.

[0034] At the same time, by starting the tool changing mechanism 3 to drive the L-shaped limit plate 601 to move, the tool at the lower end of the clamping tool holder 2 is clamped in the positioning hole 602, so that the limit mechanism 6 limits the falling position of the tool at the lower end of the clamping tool holder 2 between the two sets of L-shaped fixing plates 401, thereby minimizing the possibility that the tool will slip to the ground when subsequent staff members take the tool between the two sets of L-shaped fixing plates 401.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic tool changing mechanism for a denture engraving and milling machine, comprising a top plate (1), a clamping tool holder (2) and a tool (308), characterized in that: The clamping tool holder (2) is installed on the lower surface of the top plate (1), and a tool changing mechanism (3) for driving multiple groups of tools (308) for installation is installed on the lower surface of the top plate (1). A disassembly mechanism (4) is provided on the side of the tool changing mechanism (3) close to the clamping tool holder (2), and a limiting mechanism (6) is installed inside the disassembly mechanism (4).

2. The automatic tool changing mechanism for a denture engraving and milling machine according to claim 1, characterized in that: The tool changing mechanism (3) comprises a U-shaped fixing plate (301), wherein the U-shaped fixing plate (301) is mounted on the lower surface of the top plate (1), a motor (302) is arranged on the side of the U-shaped fixing plate (301) away from the clamping knife seat (2), through holes are provided on the inner walls on both sides of the U-shaped fixing plate (301), screw rods (304) are rotatably connected inside the two groups of through holes of the U-shaped fixing plate (301), the output shaft of the motor (302) passes through the through hole on the left side of the U-shaped fixing plate (301) and is mounted on the left side of the screw rod (304), and the screw rod (304) is connected to the inner wall of the U-shaped fixing plate (301) so as to rotate. The external thread of the rod (304) is connected to a slider (303), the upper surface of the slider (303) abuts against the top of the inner wall of the U-shaped fixed plate (301), the lower surface of the slider (303) is installed with an electric telescopic rod (305), the output end of the electric telescopic rod (305) is installed with a fixed plate (306), the upper surface of the fixed plate (306) is provided with a storage box (307), the upper surface of the storage box (307) is provided with multiple groups of positioning grooves, and the multiple groups of knives (308) are respectively clamped in the multiple groups of positioning grooves of the storage box (307).

3. The automatic tool changing mechanism for a denture engraving and milling machine according to claim 2, characterized in that: The disassembly mechanism (4) comprises a connecting plate (403) and a clamping block (404); a clamping slot is provided on a side of the fixing plate (306) away from the electric telescopic rod (305); the clamping block (404) is clamped inside the clamping slot of the fixing plate (306); the connecting plate (403) is installed on a side of the clamping block (404) away from the fixing plate (306); a clamping slot is provided on a side of the connecting plate (403) away from the tool changing mechanism (3); a bidirectional electric telescopic rod (402) is installed inside the clamping slot of the connecting plate (403); and L-shaped fixing plates (401) are installed at the output ends on both the front and rear sides of the bidirectional electric telescopic rod (402).

4. The automatic tool changing mechanism for a denture engraving and milling machine according to claim 3, characterized in that: The adjacent sides of the two groups of L-shaped fixing plates (401) are both bonded with anti-slip pads (5).

5. The automatic tool changing mechanism for a denture engraving and milling machine according to claim 3 is characterized in that: The limiting mechanism (6) comprises an L-shaped limiting plate (601), wherein the L-shaped limiting plate (601) is installed on a side of the bidirectional electric telescopic rod (402) away from the fixing plate (306), and a positioning hole (602) is provided on the upper surface of the L-shaped limiting plate (601), and the position of the upper end of the positioning hole (602) is kept parallel to the adjacent sides of the two groups of L-shaped fixing plates (401).

6. The automatic tool changing mechanism for a denture engraving and milling machine according to claim 3, characterized in that: A groove is provided on a side of the card block (404) away from the connecting plate (403), a magnetic block (7) is installed inside the groove of the card block (404), and a side of the magnetic block (7) away from the card block (404) is adsorbed on an inner wall of a side of the storage box (307) away from the card block (404).

Images