Tool changing structure for false tooth processing machine tool

Abstract

The utility model belongs to the technical field of false tooth processing machine tools, and particularly relates to a tool changing structure for a false tooth processing machine tool, which comprises a fixing plate, a tool changing structure is mounted on the front side of the fixing plate, a driving structure is mounted at the bottom of the tool changing structure, and a mounting positioning structure is mounted at the bottom of the driving structure. The mounting and positioning structure comprises a machining unit and a limiting unit, the machining unit comprises a mounting block, a clamping block is mounted in the mounting block, a cutter handle is connected to the outer surface of the clamping block, and a ball cutter or a grinding needle is mounted at the bottom of the cutter handle. According to the tool changing structure for the false tooth processing machine tool, through the arrangement of the mounting positioning structure, a tool handle is clamped with a mounting block through a clamping block, the tool handle is limited through a limiting rod, and a pulling plate is limited through a limiting frame, so that a ball tool and a grinding needle are conveniently and rapidly mounted, and the stability of the tool changing structure in the using process is guaranteed; and the limiting column is clamped with the mounting frame, so that the cutter and the driving structure are convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of denture processing machine tools, in particular to a tool changing structure for denture processing machine tools. Background Art

[0002] Dentures are what people often call "false teeth". Just like "false legs" and "false limbs" are called "artificial limbs", "false teeth" means teeth that fulfill "duties" for humans. In medicine, it is a general term for restorations made after partial or complete tooth loss in the upper and lower teeth.

[0003] During the production and processing of dentures, machine tools are required to perform processing operations such as grinding. After a long period of processing parts, the tools on the machine tools will be replaced due to wear. At present, when replacing the tools, it is necessary to first unscrew the fixing bolts and then remove the chuck seat. The disassembly process is very troublesome, takes up a lot of time, and greatly reduces work efficiency.

[0004] As disclosed in Chinese patent CN207930366U, a tool changing structure of a machine tool tool rest table is proposed. The height of the tool fixing hole is greater than the height of the tool body on the tool, so that the tool body can be inserted into the tool fixing hole, and the positioning block on the pressure plate is inserted into the positioning groove on the tool body. The tool can be effectively positioned by the positioning block to avoid forward and backward movement. After completion, the motor is started by the motor switch to rotate the rotating shaft on the motor. Due to the threaded connection between the rotating shaft and the sleeve, the rotating shaft will drive the sleeve to move upward. The movement of the sleeve drives the pressure plate. Since the pressure plate is restricted by the tool fixing hole, the pressure plate cannot rotate and can only move up and down along the tool fixing hole. The upward pressure plate can effectively press the tool body to avoid the up and down movement of the tool body, which is convenient for the installation of the tool. Conversely, the pressure plate can be moved down by starting the motor in the reverse direction, which is also convenient for the disassembly of the tool. Among them, since the width of the tool fixing hole is the same as the width of the tool body, the left and right sides of the tool are also fixed.

[0005] However, the tool replacement method in the above-mentioned comparative document is relatively troublesome, and in the process of driving the motor to drive the sleeve to fix the tool, it is relatively inconvenient to control, and it is easy for the motor to rotate excessively, thereby causing damage to the tool.

[0006] For this reason, we urgently need to provide a tool changing structure for a denture processing machine tool. Utility Model Content

[0007] The purpose of the utility model is to provide a tool changing structure for a denture processing machine tool, so as to solve the problem that the tool changing method in the above-mentioned comparative document proposed in the above-mentioned background technology is relatively troublesome, and in the process of driving the motor to drive the sleeve to fix the tool, it is relatively inconvenient to control, and the motor is prone to excessive rotation, thereby causing damage to the tool.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool changing structure for a denture processing machine tool, comprising a fixed plate, a tool changing structure is installed on the front of the fixed plate, a driving structure is installed at the bottom of the tool changing structure, and an installation positioning structure is installed at the bottom of the driving structure.

[0009] The installation and positioning structure includes a processing unit and a limiting unit.

[0010] The processing unit comprises a mounting block, a clamping block is installed inside the mounting block, a tool handle is connected to the outer surface of the clamping block, and a ball cutter or a grinding needle is installed at the bottom of the tool handle.

[0011] Preferably, the limiting unit comprises a limiting frame, a pulling plate is connected to the outer surface of the limiting frame, a spring is installed in the middle of one side of the pulling plate, and a limiting rod is installed in the middle of one side of the pulling plate close to the spring.

[0012] Preferably, the limit frame is installed in the middle of both sides of the mounting block, the end of the spring away from the pulling plate is fixedly connected to the outer surface of the mounting block, the outer surface of the pulling plate is clamped with the inner part of the rectangular groove provided by the limit frame, the outer surface of the limit rod is clamped with the inner part of the sliding hole provided on the outer surface of the mounting block and the limit grooves provided on both sides of the handle. The outer surface of the clamp block is slidably connected with the inner wall of the convex sliding groove provided on the outer surface of the handle.

[0013] Preferably, the tool changing structure includes a mounting plate, an asynchronous motor is mounted on the top of the mounting plate, the output end of the asynchronous motor is connected to a coupling, the end of the coupling away from the output end of the asynchronous motor is connected to a reducer, and the end of the reducer away from the coupling is connected to a cutter disc.

[0014] Preferably, the back of the mounting plate is detachably connected to the middle of the front of the fixing plate near the top, and the output end of the asynchronous motor is rotatably connected to the through hole in the middle of the top of the mounting plate. The fixing plate is installed inside the CNC machine tool, and the asynchronous motor is uniformly controlled and connected with multiple rotating motors through a controller.

[0015] Preferably, the driving structure comprises a mounting frame, a limiting column is installed at one end of the mounting frame, a fixing block is installed on the top of the mounting frame, a rotating motor is connected to one side of the fixing block, and a rotating shaft is connected to the output end of the rotating motor.

[0016] Preferably, the bottom surface of the mounting bracket is detachably connected to the top surface of the cutter disc, the outer surface of the limiting column is engaged with the inner wall of the slot provided at the end of the mounting bracket away from the cutter disc, the outer surface of the rotating shaft is rotatably connected with the inner wall of the rotating hole provided at the middle of the top surface of the limiting column, and the end of the rotating shaft away from the rotating motor is connected to the middle of the top surface of the mounting block. The outer surface protrusion of the limiting column is engaged with the slot of the mounting bracket, and the inner protrusion of the slot of the mounting bracket is engaged with the inner wall of the circular slot provided at the outer surface of the limiting column.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The tool changing structure for the denture processing machine tool, through the setting of the installation positioning structure, utilizes the clamping connection between the tool handle and the mounting block through the clamping block, and limits it through the limit rod, and the limit frame limits the pulling plate, so as to facilitate the rapid installation of the ball cutter and the grinding needle, and ensure its stability during use.

[0019] 2. The tool changing structure for the denture processing machine tool facilitates the angle rotation adjustment of the cutter disc through the setting of the tool changing structure and the driving structure, so that different tools can be used. At the same time, the limit column and the mounting frame are connected to facilitate the disassembly, assembly and maintenance of the tool and the driving structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0021] Figure 2 This is an enlarged view of the processing structure of the utility model;

[0022] Figure 3 It is an enlarged view of the internal structure of the disassembly and assembly positioning structure of the utility model;

[0023] Figure 4 It is an enlarged view of the tool changing structure of the utility model.

[0024] In the figure: 1, fixed plate; 101, mounting plate; 102, asynchronous motor; 103, coupling; 104, reducer; 105, cutter head; 201, mounting frame; 202, limiting column; 203, fixed block; 204, rotating motor; 205, rotating shaft; 301, mounting block; 302, clamping block; 303, tool handle; 304, ball cutter; 305, grinding needle; 306, limiting frame; 307, pulling plate; 308, spring; 309, limiting rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A tool changing structure for a denture processing machine tool comprises a fixing plate 1, the front of the fixing plate 1 is provided with the tool changing structure, the bottom of the tool changing structure is provided with a driving structure, and the bottom of the driving structure is provided with a mounting and positioning structure.

[0029] The installation and positioning structure includes a processing unit and a limiting unit. The processing unit includes a mounting block 301, a clamping block 302 is installed inside the mounting block 301, a tool handle 303 is connected to the outer surface of the clamping block 302, and a ball cutter 304 or a grinding needle 305 is installed at the bottom of the tool handle 303. The limiting unit includes a limiting frame 306, a pulling plate 307 is connected to the outer surface of the limiting frame 306, a spring 308 is installed in the middle of one side of the pulling plate 307, and a limiting rod 309 is installed in the middle of one side of the pulling plate 307 close to the spring 308.

[0030] The limit frame 306 is installed in the middle of both sides of the mounting block 301, and the end of the spring 308 away from the pulling plate 307 is fixedly connected to the outer surface of the mounting block 301. The outer surface of the pulling plate 307 is internally clamped with the rectangular groove opened in the limit frame 306, and the outer surface of the limit rod 309 is internally clamped with the sliding hole opened in the outer surface of the mounting block 301 and the limit grooves opened on both sides of the tool handle 303.

[0031] By setting up the installation positioning structure, utilizing the connection between the tool handle 303 and the mounting block 301 via the clamping block 302, limiting it through the limiting rod 309, and limiting the pulling plate 307 by the limiting frame 306, it is convenient to quickly install the ball cutter 304 and the grinding needle 305, and ensure their stability during use.

[0032] When installing the ball cutter 304 or the grinding needle 305, the handle 303 is connected with the clamping block 302 to be installed inside the mounting block 301. During the installation, the pulling plate 307 is first pressed to make it disengage from the rectangular groove of the limiting frame 306, and after the pulling plate 307 is rotated 90 degrees, the pulling plate 307 is stretched to make the limiting rod 309 slide away from the mounting block 301. After the handle 303 reaches the middle of the mounting block 301, the pulling plate 307 is stretched to stretch the driving spring 308 at the same time, The spring 308 is used to restore the deformation force to drive the pulling plate 307 to move, so that the limiting rod 309 slides into the clamping groove on the surface of the knife handle 303, thereby completing the clamping of the knife handle 303 by the limiting rod 309, and then the pulling plate 307 is pressed and rotated, and the compression stress of the spring 308 is used to rebound, driving the pulling plate 307 to clamp into the rectangular groove opened in the limiting frame 306 to complete the installation limit. At the same time, the limiting frame 306 can effectively prevent the limiting rod 309 from detaching from the mounting block 301 and the knife handle 303 during the rotation process.

[0033] Embodiment 2:

[0034] On the basis of the first embodiment, the tool changing structure includes a mounting plate 101, an asynchronous motor 102 is mounted on the top of the mounting plate 101, a coupling 103 is connected to the output end of the asynchronous motor 102, a reducer 104 is connected to the end of the coupling 103 away from the output end of the asynchronous motor 102, and a cutter disc 105 is connected to the end of the reducer 104 away from the coupling 103. The back of the mounting plate 101 is detachably connected to the middle of the front of the fixing plate 1 near the top, and the output end of the asynchronous motor 102 is rotatably connected to the inside of a through hole provided in the middle of the top surface of the mounting plate 101.

[0035] The driving structure includes a mounting frame 201, a limiting column 202 is installed at one end of the mounting frame 201, a fixing block 203 is installed on the top of the mounting frame 201, a rotating motor 204 is connected to one side of the fixing block 203, and a rotating shaft 205 is connected to the output end of the rotating motor 204. The bottom surface of the mounting frame 201 is detachably connected to the top surface of the cutter disc 105, the outer surface of the limiting column 202 is internally engaged with a card slot provided at one end of the mounting frame 201 away from the cutter disc 105, the outer surface of the rotating shaft 205 is rotatably connected to the inner wall of a rotating hole provided in the middle of the top surface of the limiting column 202, and the end of the rotating shaft 205 away from the rotating motor 204 is connected to the middle of the top surface of the mounting block 301.

[0036] By setting the tool changing structure and the driving structure, it is convenient to adjust the angle of the tool disc 105 so as to use different tools. At the same time, the clamping connection between the limit column 202 and the mounting frame 201 facilitates the disassembly, assembly and maintenance of the tool and the driving structure.

[0037] The coupling 103 is driven by starting the asynchronous motor 102 for transmission, and the reducer 104 is used for transmission at the same time, thereby driving the cutter disc 105 to rotate, thereby controlling the rotation direction and angle of the cutter disc 105, and facilitating the replacement and use of the tool. The rotating shaft 205 is driven to rotate by the rotating motor 204, thereby driving the corresponding ball cutter 304 or grinding needle 305 for rotation processing. During the disassembly and maintenance process, the detachable connection between the mounting frame 201 and the cutter disc 105 and the detachable connection between the limit column 202 and the mounting frame 201 are used to facilitate disassembly and maintenance.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A tool changing structure for a denture processing machine tool, comprising a fixing plate (1), characterized in that: The front of the fixed plate (1) is provided with a tool changing structure, the bottom of the tool changing structure is provided with a driving structure, and the bottom of the driving structure is provided with a mounting and positioning structure; The installation and positioning structure includes a processing unit and a limiting unit; The processing unit comprises a mounting block (301), a clamping block (302) is installed inside the mounting block (301), a tool handle (303) is connected to the outer surface of the clamping block (302), and a ball cutter (304) or a grinding needle (305) is installed at the bottom of the tool handle (303).

2. A tool changing structure for a denture processing machine tool according to claim 1, characterized in that: The limiting unit comprises a limiting frame (306), the outer surface of the limiting frame (306) is connected to a pulling plate (307), a spring (308) is installed in the middle of one side of the pulling plate (307), and a limiting rod (309) is installed in the middle of one side of the pulling plate (307) close to the spring (308).

3. A tool changing structure for a denture processing machine tool according to claim 2, characterized in that: The limit frame (306) is installed in the middle of both sides of the mounting block (301), and one end of the spring (308) away from the pulling plate (307) is fixedly connected to the outer surface of the mounting block (301), and the outer surface of the pulling plate (307) is internally clamped with the rectangular groove provided in the limit frame (306), and the outer surface of the limit rod (309) is internally clamped with the sliding hole provided in the outer surface of the mounting block (301) and the limit grooves provided on both sides of the knife handle (303).

4. The tool changing structure for a denture processing machine tool according to claim 1, characterized in that: The tool changing structure comprises a mounting plate (101), an asynchronous motor (102) is mounted on the top of the mounting plate (101), an output end of the asynchronous motor (102) is connected to a coupling (103), an end of the coupling (103) away from the output end of the asynchronous motor (102) is connected to a reducer (104), and an end of the reducer (104) away from the coupling (103) is connected to a cutter disc (105).

5. A tool changing structure for a denture processing machine tool according to claim 4, characterized in that: The back side of the mounting plate (101) is detachably connected to the middle of the front side of the fixing plate (1) near the top, and the output end of the asynchronous motor (102) is rotatably connected to the inside of a through hole provided in the middle of the top side of the mounting plate (101).

6. The tool changing structure for a denture processing machine tool according to claim 1, characterized in that: The driving structure comprises a mounting frame (201), a limiting column (202) is mounted on one end of the mounting frame (201), a fixing block (203) is mounted on the top of the mounting frame (201), a rotating motor (204) is connected to one side of the fixing block (203), and a rotating shaft (205) is connected to the output end of the rotating motor (204).

7. A tool changing structure for a denture processing machine tool according to claim 6, characterized in that: The bottom surface of the mounting frame (201) is detachably connected to the top surface of the blade disc (105); the outer surface of the limiting column (202) is internally engaged with a card slot provided at one end of the mounting frame (201) away from the blade disc (105); the outer surface of the rotating shaft (205) is rotatably connected to the inner wall of a rotating hole provided in the middle of the top surface of the limiting column (202); and the end of the rotating shaft (205) away from the rotating motor (204) is connected to the middle of the top surface of the mounting block (301).

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