Automatic tool changing structure of numerical control tool holder and tool setting detection equipment

Abstract

The invention relates to the technical field of tool assembly, in particular to an automatic tool changing structure of a numerical control tool holder and tool setting detection equipment. The tool changing structure comprises a screwing disc, a tool handle seat and a collet placing table which are arranged on the workbench, the screwing disc is arranged on the workbench in a sliding mode in the height direction of the tool handle seat and used for rotating a nut, and a limiting piece is arranged in the screwing disc and used for limiting the unscrewed nut in the screwing disc; an assembling area is arranged on a part of the collet placing table, and other parts of the collet placing table are used for placing collets of different specifications. The collet placing table is connected with a driving part used for driving the assembling area to move or be separated to the position under the screwing disc. The height of the fixed arm and the height of the swing arm are larger than the height of the collet, the fixed arm and the swing arm can automatically skip the collet which is not selected by people through the design, the collet selected by people can be brought to the position below a nut to be assembled by the fixed arm and the swing arm due to the fact that a tool bit is inserted into the collet, and therefore manual operation steps are reduced.

Description

Technical Field

[0001] This invention relates to the field of tool assembly technology, and more specifically, to an automatic tool changer structure for CNC tool holders and a tool setting detection device. Background Technology

[0002] CNC cutting tools are cutting tools used with CNC machine tools and are an important component of CNC machining. They are characterized by high precision, high efficiency, and high reliability, and can meet the machining requirements of complex workpieces. Some cutting tools can be divided into tool heads and tool holders. A tool holder can be used with different tool heads, and due to tool wear, the tool heads need to be replaced according to the machining requirements.

[0003] To improve assembly efficiency, Chinese patent CN222986215U discloses an integrated CNC tool holder loading and unloading and tool setting device to replace manual labor. Specifically, it uses a tool holder fixing seat to limit the tool holder's position, and then uses a tightening turntable to tighten the nut on the tool holder. However, this patent still faces the following problem when changing tool heads of different diameters: Because different diameter cutting heads require different collets, the replacement process involves first unscrewing the nut, then manually removing the existing collet from the nut, selecting a suitable collet, reassembling it onto the nut, and finally replacing the cutting head and tightening the nut. Therefore, this patent only enables automatic tightening of the nut; it cannot replace manual labor in collet assembly because it's difficult to determine the required collet size, thus requiring manual operation for collet assembly. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic tool changer structure for CNC tool holders and a tool setting detection device, which selects the corresponding collet through a fixed arm and a swing arm, thereby solving the problem mentioned in the background art, namely, the difficulty in knowing what size collet is needed at any given time, which leads to the current need for manual operation in assembling collets.

[0005] To achieve the above objectives, one of the objectives of this invention is to provide an automatic tool changer structure for CNC tool holders, including a tightening disc, a tool holder seat, and a collet placement table set on a worktable. The tightening disc is slidably set on the worktable along the height direction of the tool holder seat and is used to rotate the nut. A limiting member is set inside the tightening disc to restrict the loosened nut within the tightening disc. The collet placement platform has a partial assembly area, while the remaining area is used to place collets of different sizes; the collet placement platform is connected to a drive unit, which is used to move the assembly area or disengage it to the area directly below the tightening disc. It also includes a rocker robot that is slidably disposed on one side of the collet placement platform. The rocker robot includes a fixed arm and a swing arm. The height of the fixed arm and the swing arm is higher than the collet and lower than the cutter head. The rocker arm robot can move towards the assembly area. When changing collets, the cutter head is inserted into the corresponding collet, so that the fixed arm and the swing arm guide the collet to the assembly area through the cutter head during the movement. The tightening disc drives the nut to move down to the assembly area, so that the nut engages with the collet. Then, the tightening disc drives the nut to rotate, tightening the nut at the cutter handle.

[0006] In the above technical solution, the height of the fixed arm and the swing arm is higher than the collet and lower than the cutter head. With this design, when people select one of the collets, they only need to insert the corresponding cutter head into the collet, so that the fixed arm and the swing arm pass through the collet and the cutter head brings the collet out, thereby selecting the collet.

[0007] Based on this, a drive ring is coaxially connected to the top of the tightening disc. The drive ring is rotatably disposed inside the housing and connected to the drive motor at the housing. The outer casing is slidably connected to the worktable and is used to adjust the distance between the tightening disc and the tool holder.

[0008] Based on this, the inner ring of the tightening disc is fixedly provided with multiple locking blocks, which are locked in the locking grooves of the outer ring of the nut, and the nut is driven to rotate by the rotational force of the tightening disc; The limiting component is located at the end of the card block.

[0009] Based on this, the surface of the collet placement platform is provided with a sliding channel and multiple parallel storage channels. One end of the sliding channel protrudes from the collet placement platform and forms an assembly area. The storage channels communicate with the sliding channels, and the connection point bends towards the assembly area. Specifically, the sliding channel is enclosed by two baffles disposed on the surface of the collet placement platform. Each storage channel is enclosed by a first limiting plate and a second limiting plate, and the ends of the first and second limiting plates bend towards the assembly area to form a bent end. The bent portion of the second limiting plate is closer to the sliding channel than the bent portion of the first limiting plate.

[0010] Based on this, the rocker robot includes a frame that is slidably disposed on the side wall of the baffle, and the frame slides along the length of the sliding channel via a drive device; The frame is fixedly connected to the fixed arm and rotatably connected to the swing arm. A swing arm motor for driving the swing arm to rotate is provided on one side of the frame, and a sensor is provided on the other side. The sensor is used to send a start signal to the swing arm motor when the fixed arm contacts the cutter head, so that the swing arm motor drives the swing arm to rotate to the cutter head.

[0011] In another technical solution, the tool holder is a lifting structure, and the drive ring and the tightening disc are fixedly connected by a partition rod, so that a gap is formed between the bottom end of the drive ring and the top of the tightening disc for the swing arm to enter.

[0012] In this technical solution, after the nut is engaged with the collet, the swing arm rotates into the gap and contacts the cutter head, thus limiting the downward movement of the cutter head by applying lateral friction force to the cutter head.

[0013] The second objective of this invention is to provide a tool setting detection device for an automatic tool changer structure of a CNC tool holder, including a detection camera. The detection camera takes pictures of the nut, tool head, collet, and tool holder during the tightening process and transmits the pictures to a computer for detection.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this CNC tool holder automatic tool changer and tool setting detection device, the height of the fixed arm and the swing arm is higher than the height of the collet. This design allows the fixed arm and the swing arm to automatically skip collets that have not been selected by the user. The collets that have been selected by the user, because the tool head has been inserted, will be carried by the fixed arm and the swing arm to the bottom of the nut for assembly, thereby reducing manual operation steps.

[0015] 2. In this CNC tool holder automatic tool changer and tool setting detection device, the swing arm can not only limit the tilting of the collet during the driving movement of the collet, but also contact the tool head by rotating during the tightening of the nut. By applying lateral friction to the tool head, it can limit its downward movement, thereby increasing the probability that the tool head is in the correct position after tightening. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the workbench of the present invention; Figure 3 This is a schematic diagram of the drive ring structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the drive ring structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the card block structure of the present invention; Figure 6 This is a schematic diagram of the structure of the collet placement platform of the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the structure of the rocker robot of the present invention; Figure 8 This is a schematic diagram of the structure of the collet placement platform of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the working state of the torsion ring of the present invention; Figure 10 This is a schematic diagram of the working state of the swing arm of the present invention.

[0017] The meanings of the labels in the diagram are as follows: 100. Workbench; 101. Support; 102. Slide rail; 103. Pulley; 110. Housing; 111. Drive ring; 112. Drive motor; 113. Transmission component; 114. Tightening disc; 115. Spacer; 116. Clearance; 117. Clamp; 118. Spring; 120. Tool holder; 130. Tool head placement platform; 131. Groove; 132. Moving cylinder; 140. Collet placement platform; 41. First limiting plate; 142. Second limiting plate; 143. Baffle; 144. Bending end; 145. Pushing plate; 146. Pushing cylinder; 150. Rocker arm robot; 151. Frame; 152. Fixed arm; 153. Swing arm; 154. Sensor; 155. Swing arm motor; 156. Lead screw; 200. Detection camera; 300. Nut; 301. Cutting head; 302. Collet; 303. Tool holder. Detailed Implementation

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Since it is difficult to know what size collet 302 is needed, the current assembly of collet 302 still requires manual operation. One of the objectives of this invention is to provide an automatic tool changer structure for CNC tool holders. Example

[0021] The tool changing structure includes a tightening disc 114, a tool holder 120, and a collet placement platform 140, all mounted on the worktable 100. The tightening disc 114 is slidably mounted on the worktable 100 along the height of the tool holder 120. This design allows the tightening disc 114 to approach or move away from the tool holder 120 to tighten or loosen the nut 300. Furthermore, a limiting element is provided inside the tightening disc 114 to confine the loosened nut 300 within the tightening disc 114.

[0022] The collet placement table 140 has a partial assembly area, and the collet placement table 140 is slidably disposed on the worktable 100 to drive the assembly area to move or disengage from the tightening disc 114 directly below it, while other parts of the collet placement table 140 are used to place collets 302 of different specifications. The tool changing structure also includes a rocker arm robot 150 slidably disposed on one side of the collet placement platform 140. The rocker arm robot 150 includes a fixed arm 152 and a swing arm 153. The height of the fixed arm 152 and the swing arm 153 is higher than the collet 302 and lower than the tool head 301. The rocker arm robot 150 can move to the assembly area. When changing the collet 302, the tool head 301 is inserted into the corresponding collet 302. During the movement, the fixed arm 152 and the swing arm 153 guide the collet 302 to the assembly area through the tool head 301. The tightening disc 114 drives the nut 300 to move down to the assembly area, so that the nut 300 engages with the collet 302. Then, the tightening disc 114 drives the nut 300 to rotate, tightening the nut 300 at the tool holder 303.

[0023] Specifically, the rotation of the tightening disc 114 is powered by an electric rotating mechanism. This electric rotating mechanism is slidably positioned... Figure 1 The side of the workbench 100. In specific implementation, a support 101 for the electric rotating mechanism to slide in a vertical state is built on one side of the top of the workbench 100. A longitudinal slide rail 102 is set on the support 101. The electric rotating mechanism is then placed on the slide rail 102 to realize the lifting and lowering of the electric rotating mechanism. The lifting and lowering of the electric rotating mechanism can be controlled by electric push rods, "motor + traction rope", etc.

[0024] As an example, refer to Figure 2 By setting a pulley 103 on the top of the bracket 101, one end of the traction rope is connected to the outer shell 110 (the housing of the electric rotating mechanism), and the other end is connected to the motor on the back side of the bracket 101 after passing over the top of the bracket 101. The motor rotates to retract and extend the traction rope, thereby realizing the control of lifting and lowering the outer shell 110.

[0025] Figure 3The specific structure of the electric rotating mechanism is shown. The electric rotating mechanism mainly consists of a housing 110, a drive ring 111, and a drive motor 112. The housing 110 is slidably mounted on the slide rail 102, used to drive the entire electric rotating mechanism to perform lifting and lowering movements; the drive ring 111 is rotatably mounted inside the housing 110 and is driven to rotate by the drive motor 112. The drive motor 112 and the drive ring 111 can be coaxially fixedly connected, or, as shown... Figure 3 As shown, power is transmitted through a transmission component 113 housed within the housing 110. The transmission component 113 mainly consists of a worm gear and a worm wheel, wherein the worm gear is coaxially and fixedly connected to the drive motor 112, and the worm gear is fixedly mounted on the outer ring of the drive ring 111. Furthermore, the bottom end of the housing 110 extends through the housing 110 to connect to a tensioning disc 114, the specific connection structure of which is as follows: refer to Figure 4 The tightening disc 114 is located at the bottom of the drive ring 111 and is coaxially and fixedly connected to the drive ring 111. Here, the tightening disc 114 can be directly fixedly installed at the bottom of the drive ring 111, or it can be fixedly installed at the bottom of the drive ring 111 by means of the spacer 115 (the details will be described in Embodiment 2).

[0026] In this way, the tightening disc 114 rotates under the drive of the electric rotating mechanism. During the rotation, multiple locking blocks 117 fixedly arranged on the inner ring engage with the locking grooves on the outer ring of the nut 300. At this time, the tightening disc 114 drives the nut 300 to rotate through the locking blocks 117, thereby tightening or loosening the nut 300. After the nut 300 is loosened, the present invention provides a limiting member inside the tightening disc 114 to restrict the nut 300 within the tightening disc 114. The specific structure of the limiting member is shown in the following embodiment: In some embodiments, such as Figure 5 As shown, the limiting component is a spring piece 118 set at the end of the locking block 117. The spring piece 118 has a "V" shaped structure. The unfolded width of the spring piece 118 in the free state is greater than the distance between the locking block 117 and the slot of the nut 300. Thus, the elasticity of the spring piece 118 is used to clamp and fix the nut 300, preventing the nut 300 from falling off.

[0027] In other embodiments, the limiting member is a magnet block disposed at the end of the locking block 117. The magnet block is attached to the inner wall of the outer ring groove of the nut 300 and is magnetically connected to the nut 300, thereby preventing the nut 300 from falling off by magnetic force.

[0028] Figure 6 The specific structure of the collet placement stage 140 is shown. As shown, a movable cylinder 132 is provided on one side of the collet placement stage 140 to drive the collet placement stage 140 to move towards the tool holder 120. (Refer to...) Figure 8The collet placement platform 140 has two longitudinally arranged baffles 143 on its surface, forming a sliding channel between the two baffles 143 with a width corresponding to the collet 302. One end of the sliding channel protrudes from the collet placement platform 140, forming an assembly area. In addition, the surface of the collet placement platform 140 also has multiple storage channels arranged side by side, communicating with the sliding channel. The collets 302 placed in each storage channel have different specifications. Specifically, each storage channel is composed of a first limiting plate 141 and a second limiting plate 142. The ends of the first limiting plate 141 and the second limiting plate 142 are bent towards the assembly area to form a bent end 144. Furthermore, the bent portion A of the second limiting plate 142 is closer to the sliding channel than the bent portion B of the first limiting plate 141.

[0029] Furthermore, to promptly push the collet 302 to the designated position, the present invention also provides a pusher plate 145 within the storage channel. The pusher plate 145 is driven by a pusher cylinder 146 disposed on the surface of the collet placement platform 140. Thus, when the pusher plate 145 moves towards the sliding channel, it pushes the collet 302, causing the collet 302 to be in the designated position. Figure 8 The state in.

[0030] Figure 6 and Figure 7 The specific structure of the rocker robot 150 is shown. As shown, the rocker robot 150 includes a frame 151 disposed on the side wall of a baffle 143. A lead screw 156 is threadedly connected to the side wall of the frame 151 and mounted on the side wall of the baffle 143. The lead screw 156 drives the frame 151 to slide along the length of the sliding channel via a motor. Alternatively, components such as electric push rods can be used to drive the frame 151 to move.

[0031] Next, the frame 151 is fixedly connected to the fixed arm 152 and rotatably connected to the swing arm 153. A swing arm motor 155 for driving the swing arm 153 to rotate is provided on one side of the frame 151. A sensor 154 (e.g., an infrared sensor, a photoelectric sensor) is provided on the side of the frame 151 near the collet 302. The sensor 154 sends a start signal to the swing arm motor 155 when the fixed arm 152 contacts the cutter head 301. With this design, when the fixed arm 152 contacts the cutter head 301, the collet 302 is directly in front of the sensor 154. When the collet 302 senses the presence of the cutter head 301, it controls the swing arm motor 155 to start. At this time, the swing arm motor 155 drives the swing arm 153 to rotate from the solid line state to the dashed line state.

[0032] The working principle of this invention will be described in detail below: First, select the new cutter head 301 and insert it into the corresponding collet 302. Refer to the following for the insertion status. Figure 6 Subsequently, refer to Figure 7The drive frame 151 moves, and when the fixed arm 152 moves to the cutter head 301, the sensor 154 sends a control signal to the swing arm motor 155, causing the swing arm 153 to rotate from the solid line state to the dotted line state, thereby limiting the cutter head 301. During the movement, a tipping phenomenon occurs.

[0033] Next, the frame 151 continues to move towards the assembly area. The frame 151 drives the fixed arm 152 and the swing arm 153, pushing the collet 302 towards the bent end 144 of the first limiting plate 141. The bent end 144 guides the collet 302 and the cutter head 301 into the sliding channel. The frame 151 continues to move until it reaches the assembly area. Figure 8 The dashed line in the text.

[0034] Then, the collet placement platform 140 is moved towards the tightening disc 114 by the moving cylinder 132, so that the assembly area (i.e., the end of the sliding channel) is directly below the tightening disc 114. Subsequently, the tightening disc 114 is controlled to move downward, which causes the nut 300 to move down to the top of the collet 302. As it continues to move downward, the nut 300 applies downward pressure to the collet 302, causing the nut 300 to engage with the collet 302. Next, the collet placement platform 140 is controlled to reset, so that the sliding channel is disengaged from below the tightening disc 114. At this time, the nut 300 is controlled to be above the tool holder 303, driving the tightening disc 114 to rotate, so that the tightening disc 114 tightens the nut 300.

[0035] It should be noted that the distance between the fixed arm 152 and the swing arm 153 is greater than the diameter of the cutter head 301, so as to avoid the phenomenon that clamping the cutter head 301 would prevent the collet 302 and the cutter head 301 from entering the sliding channel.

[0036] In other words, the fixed arm 152 and the swing arm 153 set in this solution are higher than the height of the collet 302. This design allows the fixed arm 152 and the swing arm 153 to automatically skip the collet 302 that has not been selected by people. The collet 302 that has been selected by people is brought to the bottom of the nut 300 by the fixed arm 152 and the swing arm 153 for assembly because the cutting head 301 is inserted, thereby reducing manual operation steps.

[0037] Furthermore, to facilitate the insertion of the cutter head 301 into the collet 302, such as... Figure 6 As shown, in this embodiment, a blade placement platform 130 is fixedly installed on the top of the collet placement platform 140. The blade placement platform 130 has multiple grooves 131 located above the storage channel, and these grooves 131 are used to place the blades 301. With this design, the blades 301 are correspondingly positioned with the collets 302. When selecting a collet 302, only the blade 301 above the corresponding collet 302 needs to be picked up.

[0038] In Example 2, considering that some cutter heads 301 are prone to downward movement during the rotation of the nut 300, this example sets the cutter holder 120 as a lifting structure. On the other hand, the drive ring 111 and the tightening disc 114 are fixedly connected by a spacer 115. This design allows a gap 116 to be formed between the bottom of the drive ring 111 and the top of the tightening disc 114 for the swing arm 153 to enter.

[0039] With this design, after the nut 300 engages with the collet 302, the control tightening disc 114 descends, bringing the gap 116 to the same height as the rocker arm 153. Then, the tool holder 303 is driven to rise via the tool holder seat 120, raising it below the nut 300. Next, the drive frame 151 is positioned... Figure 10 In the state of the gap 116, the swing arm 153 rotates into the gap 116 and contacts the cutter head 301, and restricts the downward movement of the cutter head 301 by applying a lateral frictional force to the cutter head 301.

[0040] It should be noted that when the nut 300 is rotated a quarter turn, the tool holder 303 can squeeze the collet 302, clamping the tool head 301. At this time, the tool head 301 will no longer move down. Then, the control arm 153 is reset to disengage from the gap 116, and the tightening disc 114 can rotate continuously.

[0041] In summary, the swing arm 153 can not only limit the tilting of the collet 302 during the movement of the drive collet 302, but also contact the cutter head 301 by rotating during the tightening of the nut 300, and limit its downward movement by applying lateral friction to the cutter head 301, thereby increasing the probability that the cutter head 301 is in the correct position after tightening.

[0042] like Figure 2 As shown, the second objective of this invention is to provide a tool setting detection device for an automatic tool changer structure of a CNC tool holder, including a detection camera 200. During the tightening process, the detection camera 200 takes pictures of the nut 300, the tool head 301, the collet 302, and the tool holder 303, and transmits the captured images to a computer for detection.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic tool changer structure for CNC tool holders, comprising a tightening disc (114), a tool holder seat (120), and a collet placement table (140) disposed on a worktable (100), characterized in that: The tightening disc (114) is slidably disposed on the worktable (100) along the height direction of the tool holder (120) for rotating the nut (300). A limiting member is provided inside the tightening disc (114) to restrict the loosened nut (300) within the tightening disc (114). The collet placement table (140) has a partial assembly area, and the remaining part is used to place collets (302) of different specifications; the collet placement table (140) is connected to a drive unit, which is used to drive the assembly area to move or disengage to the area directly below the tightening disc (114). It also includes a rocker robot (150) that is slidably disposed on one side of the collet placement table (140). The rocker robot (150) includes a fixed arm (152) and a swing arm (153). The fixed arm (152) and the swing arm (153) are higher than the collet (302) and lower than the cutter head (301). The rocker arm robot (150) can move to the assembly area. When changing the collet (302), the cutter head (301) is inserted into the corresponding collet (302), so that the fixed arm (152) and the swing arm (153) guide the collet (302) to the assembly area through the cutter head (301) during the movement. The tightening disc (114) drives the nut (300) to move down to the assembly area, so that the nut (300) is engaged with the collet (302). Then, the tightening disc (114) drives the nut (300) to rotate, tightening the nut (300) at the cutter handle (303).

2. The automatic tool changer structure for CNC tool holders according to claim 1, characterized in that: The top of the tightening disc (114) is coaxially connected to a drive ring (111), which is rotatably disposed inside the housing (110) and connected to a drive motor (112) at the housing (110). The outer casing (110) is slidably connected to the worktable (100) for adjusting the distance between the tightening disc (114) and the tool holder (120).

3. The automatic tool changer structure for CNC tool holders according to claim 1, characterized in that: The inner ring of the tightening disc (114) is fixedly provided with multiple locking blocks (117). The locking blocks (117) are locked in the locking groove of the outer ring of the nut (300). The nut (300) is driven to rotate by the rotational force of the tightening disc (114). The limiting member is located at the end of the locking block (117).

4. The automatic tool changer structure for CNC tool holders according to claim 3, characterized in that: The limiting component is a spring piece (118) provided at the end of the locking block (117). The spring piece (118) has a "V" shaped structure. Its unfolded width in the free state is greater than the distance between the locking block (117) and the nut (300) slot. The elasticity of the spring piece (118) prevents the nut (300) from disengaging from the tightening disc (114).

5. The automatic tool changer structure for CNC tool holders according to claim 3, characterized in that: The limiting component is a magnet block located at the end of the locking block (117). The magnet block is attached to the inner wall of the outer ring groove of the nut (300) and magnetically connected to the nut (300). The magnetic force prevents the nut (300) from detaching from the tightening disc (114).

6. The automatic tool changer structure for CNC tool holders according to claim 1, characterized in that: The surface of the collet placement platform (140) is provided with a sliding channel and multiple parallel storage channels. One end of the sliding channel protrudes from the collet placement platform (140) and forms an assembly area. The storage channel is connected to the sliding channel, and the connection point bends towards the assembly area.

7. The automatic tool changer structure for CNC tool holders according to claim 6, characterized in that: The sliding channel is enclosed by two baffles (143) set on the surface of the collet placement platform (140); Each of the storage channels is enclosed by a first limiting plate (141) and a second limiting plate (142), and the ends of the first limiting plate (141) and the second limiting plate (142) are bent toward the assembly area to form a bent end (144), and the bent part of the second limiting plate (142) is closer to the sliding channel than the bent part of the first limiting plate (141).

8. The automatic tool changer structure for CNC tool holders according to claim 7, characterized in that: The rocker robot (150) includes a frame (151) slidably disposed on the side wall of the baffle (143), and the frame (151) slides along the length of the sliding channel via a drive device; The frame (151) is fixedly connected to the fixed arm (152) and rotatably connected to the swing arm (153). A swing arm motor (155) for driving the swing arm (153) to rotate is provided on one side of the frame (151), and a sensor (154) is provided on the other side. The sensor (154) is used to send a start signal to the swing arm motor (155) when the fixed arm (152) contacts the cutter head (301), so that the swing arm motor (155) drives the swing arm (153) to rotate to the cutter head (301).

9. The automatic tool changer structure for CNC tool holders according to claim 2, characterized in that: The tool holder (120) is a lifting structure. The drive ring (111) and the tightening disc (114) are fixedly connected by a partition rod (115), so that a gap (116) is formed between the bottom end of the drive ring (111) and the top of the tightening disc (114) for the swing arm (153) to enter. When the nut (300) engages with the collet (302), the swing arm (153) rotates into the gap (116) and contacts the cutter head (301), thereby limiting the downward movement of the cutter head (301) by applying lateral friction to the cutter head (301).

10. A tool setting detection device for an automatic tool changer structure for CNC tool holders as described in any one of claims 1-9, characterized in that: The system includes a detection camera (200), which takes pictures of the nut (300), the cutter head (301), the collet (302), and the handle (303) during the tightening process, and transmits the pictures to a computer for inspection.

Images