CN114536069B

CN114536069B - Automatic tool changing device for implant processing machine tool

Info

Publication number: CN114536069B
Application number: CN202210068400.0A
Authority: CN
Inventors: 黄波; 何凯; 赵刚; 张飞飞; 张君泰; 徐清平
Original assignee: Shenzhen Institute of Advanced Technology of CAS
Current assignee: Shenzhen Institute of Advanced Technology of CAS
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2023-02-28
Anticipated expiration: 2042-01-20
Also published as: CN114536069A

Abstract

This application mainly relates to an automatic tool changing device that implant machine tool used, includes: the tool changer comprises a first driving structure, a second driving structure, a third driving structure, a tool changing assembly and a placing assembly, wherein the first driving structure can drive the second driving structure to move on the first driving structure along a first direction, the second driving structure can drive the third driving structure to move on the second driving structure along a second direction, the third driving structure can drive the tool changing assembly to move on the third driving structure along a third direction, and the placing assembly is arranged on one side of the first driving structure and used for placing a tool to be replaced; the tool changing assembly can move to the placing assembly under the driving of the first driving structure, the second driving structure and the third driving structure, and then the tool is replaced. The cutter changing device is simple in structure, compact and efficient in machining.

Description

Automatic tool changing device for implant processing machine tool

Technical Field

The application relates to the technical field of mechanical equipment, in particular to an automatic tool changing device for an implant machining machine tool.

Background

The processing of parts such as the abutment, the dental implant and the like has the characteristics of small parts, multiple processes, large batch and the like, and simultaneously, turning and milling processes are required. The designed implant processing machine tool has small processed parts, which requires the machine tool to be compact in structure, so that the tool changing device needs to be designed to have fewer parts and simple structure. The multi-procedure oriented characteristic requires that the machine tool has an automatic tool changing function so as to meet the requirement of keeping high processing efficiency when a plurality of tools are processed on a single part. Aiming at the required turning and milling functions, a turning tool needs to be installed under the condition that a main shaft stops rotating, and at the moment, when a main shaft motor is required to stop rotating, the relative position of the main shaft needs to be fixed, so that the tool shank and the main shaft need to be locked, and the tool shank and the main shaft can be conveniently detached during tool changing. In addition, the turning tool needs to have a fixed position in the tool magazine, so that the relative position of the turning tool and the main shaft can be ensured to be unchanged during installation.

However, the prior art has the characteristics of complex machine tool structure and unreliable positioning.

Disclosure of Invention

The embodiment of the application provides an automatic turn-milling tool changing device that implant machine tool was used, include: the tool changer comprises a first driving structure, a second driving structure, a third driving structure, a tool changing assembly and a placing assembly, wherein the first driving structure can drive the second driving structure to move on the first driving structure along a first direction, the second driving structure can drive the third driving structure to move on the second driving structure along a second direction, the third driving structure can drive the tool changing assembly to move on the third driving structure along a third direction, and the placing assembly is arranged on one side of the first driving structure and used for placing a tool to be replaced; the tool changing assembly can move to the placing assembly under the driving of the first driving structure, the second driving structure and the third driving structure, and then the tool is replaced; wherein the first direction, the second direction, and the third direction are perpendicular to each other.

In some embodiments, the placing assembly comprises a placing plate, tool holders and an aligning block, the placing plate is fixedly connected to one side of the first driving structure, the tool holders are arranged on the placing plate side by side and used for placing the tools, the aligning block is arranged in the center of the placing assembly, and the tools comprise a first tool and a second tool.

In some embodiments, the tool changing assembly comprises a tool changing element and a spindle, wherein the tool changing element is slidably connected with the third driving structure, the spindle is connected with the tool changing element, and the tool is connected with the output end of the spindle.

In some embodiments, the tool changing assembly further comprises a positioning block, the main shaft is provided with a mounting position for mounting the positioning block, the first tool comprises a movable cutting tool, the movable cutting tool comprises a first tool bit, a first tool handle, a first projection and a second projection, the first tool bit is connected with the inner side of the first tool handle, the first tool handle is connected with the main shaft, the first projection and the second projection are arranged on two sides of the first tool handle, the first tool handle is further provided with a screw hole, the screw hole is provided with a screw, the screw can prop against the first tool bit to fix the first tool bit, the first projection is provided with a positioning groove, and the positioning block is inserted into the positioning groove.

In some embodiments, the second tool comprises a rotary cutting tool, the rotary cutting tool comprises a second tool bit, a second tool shank, and a collet, wherein the second tool shank is connected to the spindle, the collet is fixedly connected to the inner side of the second tool shank, and the second tool bit portion is located at the inner side of the collet and clamped by the collet for fixation.

In some embodiments, the toolholder is coupled to the seating plate and includes a flange that may guide the tool into the toolholder, a stop mounted to the toolholder body and configured to cooperate with the second tab to limit movement of the moving cutting tool, and a toolholder body.

In some embodiments, the tool placement sequence on the toolholder is generally with the moving cutting tool forward and the rotating cutting tool rearward.

In some embodiments, the first driving structure includes a first base, a first guide rail, a first slider, a first motor, a first lead screw, a first driving member, and a first fixing member, the first base is provided with the first guide rail, the first slider is slidably connected to the first guide rail, the first slider is fixedly connected to the second driving structure, the first motor and the first fixing member are disposed on the first base, two ends of the first lead screw are connected to the first motor and the first fixing member, the first driving member is movably connected to the first lead screw, and the second driving structure is fixedly connected to the first driving member.

In some embodiments, the second driving structure includes a second base, a second guide rail, a second slider, a second motor, a second lead screw, a second driving member, and a second fixing member, the second base is provided with the second guide rail, the second slider is slidably connected to the second guide rail, the second slider is fixedly connected to the third driving structure, the second motor and the second fixing member are disposed on the second base, two ends of the second lead screw are connected to the second motor and the second fixing member, the second driving member is movably connected to the first lead screw, and the third driving structure is fixedly connected to the second driving member.

In some embodiments, the third driving structure includes a third base, a third guide rail, a third slider, a third motor, a third lead screw, a third driving member, and a third fixing member, the third base is provided with the third guide rail, the third slider is slidably connected to the third guide rail, the third slider is fixedly connected to the knife-changing member, the third motor and the third fixing member are disposed on the third base, two ends of the third lead screw are connected to the third motor and the third fixing member, the third driving member is movably connected to the third lead screw, and the knife-changing member is fixedly connected to the third driving member.

The beneficial effect of this application is: the application provides an automatic tool changer that implant machine tool was used removes through setting up drive structure drive tool changing subassembly for place the subassembly setting of placing of waiting the cutter of replacement first drive structure one side in this application, make tool changing subassembly remove under drive structure's drive and carry out the change of cutter to placing subassembly department, overall structure is simple compact and processes the high efficiency and can improve production efficiency, reduction in production cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of an automatic tool changer for an implant processing machine tool provided by the present application;

FIG. 2 is a schematic structural diagram of an embodiment of a first driving structure provided in the present application;

FIG. 3 is a schematic structural diagram of an embodiment of a second driving structure provided in the present application;

FIG. 4 is a schematic structural diagram of an embodiment of a third driving structure provided in the present application

FIG. 5 is a schematic view of an embodiment of a tool changing assembly provided herein;

FIG. 6 is a schematic view of an embodiment of a mobile cutting tool provided herein;

FIG. 7 is a schematic view of an embodiment of a rotary cutting tool provided herein;

FIG. 8 is a schematic view of an embodiment of a toolholder provided herein;

FIG. 9 is a schematic structural diagram of an embodiment of a placement assembly provided herein.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples, not all examples, and all other examples obtained by a person of ordinary skill in the art without making any creative effort fall within the protection scope of the present application.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In addition, if a description of "first", "second", etc. is referred to in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

Referring to fig. 1-2, fig. 1 is a schematic structural diagram of an embodiment of an automatic tool changer for an implant processing machine tool provided in the present application; fig. 2 is a schematic structural diagram of an embodiment of a first driving structure provided in the present application.

Specifically, the automatic tool changer 10 for an implant processing machine tool in the embodiment of the present application may include: a first drive arrangement 11, a second drive arrangement 12, a third drive arrangement 13, a tool changing assembly 15 and a placement assembly 14. In the operation of the embodiment of the automatic tool changer 10 shown in fig. 1, the first driving structure 11 can drive the second driving structure 12 to move on the first driving structure 11 in the first direction, the second driving structure 12 can drive the third driving structure 13 to move on the second driving structure 12 in the second direction, the third driving structure 13 can drive the tool changer assembly 15 to move on the third driving structure 13 in the third direction, and the placing assembly 14 is disposed on one side of the first driving structure 11 for placing the tool 144 to be replaced. Since the first driving structure 11 is connected to the second driving structure 12, the second driving structure 12 is connected to the third driving structure 13, and the third driving structure 13 is connected to the tool changing assembly 15, the tool changing assembly 15 can be moved to the placing assembly 14 by the driving of the first driving structure 11, the second driving structure 12, and the third driving structure 13, and the tool 144 can be replaced. The first direction, the second direction and the third direction are mutually perpendicular. So, the automatic tool changer 10 that implant machine tool used that this application provided removes through setting up drive structure drive tool changing component 15 for place the first drive structure 11 one side of placing the subassembly 14 setting in this application of treating the cutter 144 of replacement, make tool changing component 15 remove under drive structure's drive and carry out the change of cutter 144 to placing subassembly 14 department, overall structure is simple compact and processes the high efficiency and can improve production efficiency, reduction in production cost.

It should be noted that the extending direction of the first driving structure 11 in the illustrated state of the first driving structure 11 is taken as the length direction of the first driving structure 11, the first direction may be the length direction of the first driving structure 11, and the second direction may be the width direction of the first driving structure 11. The third direction may be a height direction of the first driving structure 11. And the structural construction composition of the first drive structure 11, the second drive structure 12 and the third drive structure 13 is substantially the same.

In some embodiments, referring to fig. 2, the first driving structure 11 may include a first base 111, a first guide rail 112, a first slider 113, a first motor 114, a first lead screw 115, a first driving member 116, and a first fixing member 117. The first base 111 is a regular cylinder structure, a recessed channel area similar to a river channel is arranged on one side of the first base 111 facing the second driving structure 12, a first motor 114 is fixedly mounted on one side of the extending direction of the recessed channel, and a first fixing member 117 is fixedly mounted on the other side of the extending direction of the recessed channel. Wherein, the fixed mounting mode can be selected from screw fixation. In addition, the first motor 114 is connected with the first fixing member 117 through a first lead screw 115, and on one side of the first motor 114, the output end of the first motor 114 is fixedly connected with the first lead screw 115 for transmission; on one side of the first fixing member 117, the first fixing member 117 is rotatably connected to the first lead screw 115 for supporting the first lead screw 115. The first drive element 116 is mounted on the first threaded spindle 115 and is fixedly connected to the second drive structure 12 on the side of the first drive element 116 facing away from the first base 111. After the first motor 114 is powered to rotate to drive the first lead screw 115 to rotate clockwise and counterclockwise, the first driving member 116 may move left and right along the extending direction of the first lead screw 115. Since the first driving member 116 is fixedly connected to the second driving structure 12, the second driving structure 12 can be driven to move in the first direction during the process of moving the first driving member 116 left and right. In addition, two sides of the first base 111 perpendicular to the extending direction of the recessed channel are respectively provided with a first guide rail 112, the first guide rail 112 is further provided with a first slider 113 fixedly connected with the second driving structure 12, the first slider 113 is slidably connected with the first guide rail 112, and the number of the first slider 113 may be set as required, for example, two or three. In addition, the first sliders 113 on the first guide rails 112 on both sides of the first base 111 may be disposed opposite to each other. Thus, the sliding stability can be ensured.

Likewise, in some embodiments, referring to fig. 3, the second driving structure 12 includes a second base 121, a second guide rail 122, a second slider 123, a second motor 124, a second lead screw 125, a second driving member 126, and a second fixing member 127. The second base 121 is a regular cylindrical structure, a recessed channel area similar to a river channel is disposed on one side of the second base 121 facing the third driving structure 13, a second motor 124 is fixedly mounted on one side of the extending direction of the recessed channel, and a second fixing member 127 is fixedly mounted on the other side of the extending direction of the recessed channel. Wherein, the fixed mounting mode can be selected from screw fixation. In addition, the second motor 124 is connected with the second fixing member 127 through a second lead screw 125, and on one side of the second motor 124, the output end of the second motor 124 is fixedly connected with the second lead screw 125 for transmission; on one side of the second fixing member 127, the second fixing member 127 is rotatably connected to the second lead screw 125 for supporting the second lead screw 125. The second drive element 126 is mounted on the second threaded spindle 125 and is fixedly connected to the third drive structure 13 on the side of the second drive element 126 facing away from the second base 121. After the second motor 124 is powered to rotate to drive the second lead screw 125 to rotate clockwise and counterclockwise, the second driving member 126 can move left and right along the extending direction of the second lead screw 125. Since the second driving member 126 is fixedly connected to the third driving structure 13, the third driving structure 13 can be driven to move in the second direction during the process of moving the second driving member 126 left and right. In addition, two sides of the second base 121 perpendicular to the extending direction of the recessed channel are respectively provided with a second guide rail 122, the second guide rail 122 is further provided with a second slider 123 fixedly connected with the third driving structure 13, the second slider 123 is slidably connected with the second guide rail 122, and the number of the second sliders 123 may be set according to the requirement, for example, two or three. In addition, the second sliders 123 on the second guide rails 122 on both sides of the second base 121 may be disposed opposite to each other. Thus, the sliding stability can be ensured.

Likewise, in some embodiments, in conjunction with fig. 4, the third driving structure 13 includes a third base 131, a third guide rail 132, a third slider 133, a third motor 134, a third lead screw 135, a third driving member 136, and a third fixing member 137. In order to ensure structural stability, the first base 111 may be designed to be a structure similar to a trapezoid in shape, a recessed channel area similar to a river channel is disposed on one side of the third base 131 facing the tool changing assembly 15, a third motor 134 is fixedly mounted on one side of the extending direction of the recessed channel, and a third fixing member 137 is fixedly mounted on the other side of the extending direction of the recessed channel. Wherein, the fixed mounting mode can select the screw fixation. In addition, the third motor 134 is connected with the third fixing member 137 through a third lead screw 135, and on one side of the third motor 134, the output end of the third motor 134 is fixedly connected with the third lead screw 135 for transmission; on the side of the third fixing member 137, the third fixing member 137 is rotatably connected to the third lead screw 135 for supporting the third lead screw 135. A third drive member 136 is mounted on the third lead screw 135 and the third drive member 136 is fixedly connected to the tool changing assembly 15 at a side remote from the third base 131. After the third motor 134 is energized to rotate and drive the third lead screw 135 to rotate clockwise and counterclockwise, the third driving member 136 may move left and right along the extending direction of the third lead screw 135. Since the third driving member 136 is fixedly connected to the tool changing assembly 15, the tool changing assembly 15 can be driven to move in a third direction when the third driving member 136 moves left and right. In addition, third guide rails 132 are respectively arranged on two sides of the third base 131 perpendicular to the extending direction of the recessed channel, a third slider 133 fixedly connected with the tool changing assembly 15 is further arranged on the third guide rails 132, the third slider 133 is slidably connected with the third guide rails 132, and the number of the third sliders 133 can be set as required, for example, two or three. In addition, the third sliders 133 on the third guide rails 132 on both sides of the third base 131 may be disposed opposite to each other. Thus, the sliding smoothness can be ensured.

In other embodiments, referring to fig. 1, the placing assembly 14 for placing the tool 144 is disposed on the side of the first driving structure 11, so as to avoid separately disposing a structure for placing the tool 144, and make the tool changer 10 efficient and compact in overall structure. Specifically, the placing assembly 14 comprises a placing plate 141, a tool holder 143 and an aligning block 142. The placing plate 141 may be a wood plate, the placing plate 141 is fixedly connected to one side of the first driving structure 11, that is, the placing assembly 14 is connected to the first driving structure 11 through the placing plate 141, and the specific connection mode may be suspension connection or screw connection. The tool holders 143 are mounted side by side on the mounting plate 141 and are used for placing the tool 144 to be replaced or the tool 144 that has just been unloaded, specifically, screw holes may be provided on the mounting plate 141, and the tool holders 143 and the mounting plate 141 are fixedly connected by screws. In this manner, the overall size of the placement assembly 14 may be reduced. The tool holder 143 is used to place a tool 144 to be replaced or a tool 144 that has just been unloaded. Feeler block 142 is disposed in the middle of placement assembly 14 and can be used to determine and adjust the relative position of tool 144 to tool changer 10. The cutters 144 may include a first cutter 145 and a second cutter 146.

In some embodiments, referring to fig. 5, the tool changing assembly 15 includes a tool changing element 151 and a spindle 152, wherein the tool changing element 151 is slidably connected to the third driving structure 13, specifically, the tool changing element 151 is connected to the third driving member 136 and the third sliding block 133 of the third driving structure 13, the spindle 152 is connected to the tool changing element 151, the spindle 152 may be sleeved on the tool changing element 151, and the tool 144 is connected to an output end of the spindle 152. The knife 144 here may be the first knife 145 or the second knife 146 mentioned above in the placement assembly 14.

In other embodiments, the tool changing assembly 15 further includes a positioning block 153 for fixing the first tool 145, the spindle 152 is provided with a mounting position 154 for mounting the positioning block 153, the mounting position 154 may be a square groove, and the positioning block 153 may be fixedly mounted in the square groove by a screw. Thus, the positioning block 153 can be well fixed on the main shaft 152 and is not easy to loosen. Furthermore, in connection with fig. 6, first tool 145 cooperating with locating block 153 may include a moving cutting tool 1451, where moving cutting tool 1451 may be a tool 144, such as a lathe tool, that is required to ensure that tool 144 does not rotate relative to spindle 152 during operation. Specifically, the mobile cutting tool 1451 may include a first blade tip 1452, a first shank 1453, a first tab 1454, and a second tab 1455. Wherein the first shank 1453 is connected to the spindle 152, and the first shank 1453 is provided with an annular groove 1459 for cooperation with a flange 1431 on the tool holder 143, which will be mentioned below. The first knife head 1452 is connected to the inner side of the first knife handle 1453, a screw hole 1456 is further formed on the first knife handle 1453, a screw 1457 is mounted on the screw hole 1456, and the screw 1457 can abut against the first knife head 1452 to fix the first knife head 1452. A first protrusion 1454 and a second protrusion 1455 may be disposed on two sides of the first knife handle 1453, and a positioning groove 1458 engaged with the positioning block 153 is disposed on the first protrusion 1454. When the spindle 152 needs to mount the moving cutting tool 1451, the positioning block 153 is inserted into the positioning groove 1458 to fix the moving cutting tool 1451. Compared with the mode of modifying the internal structure of the main shaft 152 to position the movable cutting tool 1451, the manufacturing cost is reduced, and the characteristics of simple structure and reliable positioning are simultaneously satisfied. Additionally, the second protrusion 1455 can be adapted to engage a stop 1432 on the tool holder 143, as will be discussed below, to facilitate positioning the movable cutting tool 1451 during tool 144 replacement.

In other embodiments, and with reference to fig. 7, the second tool 146 may comprise a rotary cutting tool 1461, where the rotary cutting tool 1461 may be a tool 144, such as a milling cutter, a drill, etc., that rotates the tool 144 relative to the spindle 152 during operation. Specifically, rotary cutting tool 1461 may include a second tool bit 1462, a second tool shank 1463, and a collet 1464. Wherein a second tool shank 1463 can be connected to the spindle 152, which second tool shank 1463 is likewise provided with an annular recess 1465 for cooperation with a flange 1431 on the tool holder 143, which will be mentioned below. The collet 1464 is fixedly attached to the inside of the second tool shank 1463 and the second tool bit 1462 is partially positioned inside the collet 1464 and is clamped by the collet 1464 for securement. When rotary cutting tool 1461 is mounted on tool changing assembly 15, rotary cutting tool 1461 is integrally connected to spindle 152, and spindle 152 can drive rotary cutting tool 1461 to rotate together.

In some embodiments, in conjunction with fig. 8, the toolholder 143 is coupled to the seating plate 141 as described above and includes a flange 1431, a stop 1432, and a toolholder body 1433. Wherein the flange 1431 can cooperate with the annular grooves in the moving cutter 1451 and the rotating cutter 1461 to guide the tool 144 into the holder 143 and place it in the correct position, on the one hand, and the flange 1431 also serves as the main support for the tool 144 placed on the holder 143. The retaining member 1432 is mounted on the holder body 1433, and a groove 1434 matched with the second protrusion 1455 of the moving cutting tool 1451 may be opened on the retaining member 1432, and is used for limiting the moving cutting tool 1451. Specifically, when the tool changer 10 needs to perform an operation of unloading the moving cutting tool 1451, the driving structure drives the tool changing assembly 15 such that the annular groove 1459 of the first shank 1453 of the moving cutting tool 1451 is aligned with the flange 1431, the first projection 1454 and the second projection 1455 are wired in the second direction, and the second projection 1455 is closer to the flange 1431 than the first projection 1454, the driving structure continues to drive the moving cutting tool 1451, the driving is stopped when the second projection 1455 abuts against the groove 1434 by guiding the moving cutting tool 1451 into the tool holder 143 using the flange 1431, and the moving cutting tool 1451 is locked. In this manner, the relative position between the mobile cutting tool 1451 and the tool holder 143 can be fixed; in this way, the moving cutting tool 1451 is reliably locked during both installation and removal. The holder 143 may be fixed to the seating plate 141 by fitting a screw into a screw hole.

In some specific embodiments, in conjunction with fig. 9, there are 8 toolholders 143 mounted side-by-side on the setter plate 141 in the setter assembly 14. Of these, 2 holders 143 are used to house the moving cutting tool 1451 and 6 are used to house the rotating cutting tool 1461. In general, since the tool changer 10 uses a large number of scenes to move the cutting tool 1451, the moving cutting tool 1451 can be placed in front of the tool changer and the rotating cutting tool 1461 can be placed in the rear of the tool changer. In addition, in order to find the required tool 144 during tool changing, the numbers 1 to 8 of the tool holders 143 can be used, so that the tool 144 can be conveniently located at the position where the tool 144 needs to be found by the numbers during tool changing. The feeler block 142 is mounted in the middle of the placing assembly 14, and after the tool 144 is mounted, the tool 144 is moved to the feeler block 142 to perform feeler, so that the relative position of the tool 144 to the bed can be determined or adjusted.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. The utility model provides an automatic tool changing device that implant machine tool was used which characterized in that includes: the tool changer comprises a first driving structure, a second driving structure, a third driving structure, a tool changing assembly and a placing assembly, wherein the first driving structure can drive the second driving structure to move on the first driving structure along a first direction, the second driving structure can drive the third driving structure to move on the second driving structure along a second direction, the third driving structure can drive the tool changing assembly to move on the third driving structure along a third direction, and the placing assembly is arranged on one side of the first driving structure and used for placing a tool to be replaced; the tool changing assembly can move to the placing assembly under the driving of the first driving structure, the second driving structure and the third driving structure, and then the tool is replaced; wherein the first direction, the second direction, and the third direction are perpendicular to each other;

the placing assembly comprises a placing plate, tool holders and a tool setting block, the placing plate is fixedly connected to one side of the first driving structure, the tool holders are arranged on the placing plate side by side and used for placing the tools, the tool setting block is arranged in the center of the placing assembly, and the tools comprise first tools and second tools;

the tool changing assembly comprises a tool changing piece and a main shaft, wherein the tool changing piece is connected with the third driving structure in a sliding mode, the main shaft is connected with the tool changing piece, and the tool is connected with the output end of the main shaft;

the tool changing assembly further comprises a positioning block, a mounting position for mounting the positioning block is formed in the main shaft, the first tool comprises a movable cutting tool, the movable cutting tool comprises a first tool bit, a first tool handle, a first convex block and a second convex block, the first tool bit is connected with the inner side of the first tool handle, the first tool handle is connected with the main shaft, the first convex block and the second convex block are arranged on two sides of the first tool handle, a screw hole is further formed in the first tool handle, a screw is mounted on the screw hole, the screw can support the first tool bit to fix the first tool bit, a positioning groove is formed in the first convex block, and the positioning block is inserted into the positioning groove; wherein the first shank is provided with an annular groove for mating with a flange on the toolholder;

the second cutter comprises a rotary cutting tool, the rotary cutting tool comprises a second cutter head, a second cutter handle and a spring chuck, the second cutter handle is connected with the spindle, the spring chuck is fixedly connected with the inner side of the second cutter handle, and the second cutter head part is positioned on the inner side of the spring chuck and clamped by the spring chuck to be fixed; wherein the second tool shank is provided with an annular groove for mating with a flange on the tool holder;

the tool holder is connected to the placing plate and comprises a flange, a limiting piece and a tool holder body, wherein the flange can guide the tool to enter the tool holder, and the limiting piece is mounted on the tool holder body and is used for being matched with the second lug to limit the movement of the movable cutting tool;

the tool placement sequence on the toolholder is with the moving cutting tool forward and the rotating cutting tool rearward.

2. The automatic tool changer for the implant processing machine tool according to claim 1, wherein the first driving structure comprises a first base, a first guide rail, a first slider, a first motor, a first lead screw, a first driving member, and a first fixing member, the first guide rail is arranged on the first base, the first slider is slidably connected with the first guide rail, the first slider is fixedly connected to the second driving structure, the first motor and the first fixing member are arranged on the first base, two ends of the first lead screw are connected to the first motor and the first fixing member, the first driving member is movably connected to the first lead screw, and the second driving structure is fixedly connected to the first driving member.

3. The automatic tool changer for the implant processing machine according to claim 2, wherein the second driving structure comprises a second base, a second guide rail, a second slider, a second motor, a second lead screw, a second driving member, and a second fixing member, the second guide rail is disposed on the second base, the second slider is slidably connected to the second guide rail, the second slider is fixedly connected to the third driving structure, the second motor and the second fixing member are disposed on the second base, two ends of the second lead screw are connected to the second motor and the second fixing member, the second driving member is movably connected to the first lead screw, and the third driving structure is fixedly connected to the second driving member.

4. The automatic tool changing device for the implant processing machine according to claim 3, wherein the third driving structure comprises a third base, a third guide rail, a third slider, a third motor, a third lead screw, a third driving member and a third fixing member, the third guide rail is arranged on the third base, the third slider is slidably connected with the third guide rail, the third slider is fixedly connected to the tool changing member, the third motor and the third fixing member are arranged on the third base, two ends of the third lead screw are connected to the third motor and the third fixing member, the third driving member is movably connected to the third lead screw, and the tool changing member is fixedly connected to the third driving member.