A clamping device for a numerical control tool holder

Abstract

The utility model discloses a kind of clamping devices of numerical control tool holder, it is related to lock tool seat technical field, the utility model includes support seat, support seat top side is connected with limiting frame, and limiting frame bottom side is connected with third rotation stop block, limiting frame side is fixed with guide frame, and guide frame top is penetrated with limiting plate, limiting plate side below is connected with anti-drop block.The utility model is provided with limiting frame and third rotation stop block, limiting frame rotates on support seat, when staff operates, rotating limiting frame upwards can be open and place seat top, it is convenient for handle to be smoothly horizontally placed;After handle is placed, rotating limiting frame downwards can form constraint to handle, effectively reduce the risk that handle falls upwards in operating process;Meanwhile, third rotation stop block can be inserted into the groove of handle when limiting frame rotates downwards reset, and cooperates with the second rotation stop block on placement seat;The stability of handle horizontal placement is improved.

Description

Technical Field

[0001] This utility model relates to the field of tool holder technology, specifically a clamping device for CNC tool holders. Background Technology

[0002] CNC tooling systems mainly consist of components such as tool holders, collets, and cutting tools. Tool holders are used to connect with the machine tool to transmit torque, collets are used to clamp the cutting tools, and cutting tools are the main tools used for machining workpieces. They are cutting tools used in mechanical manufacturing and can be broadly classified into milling cutters, thread cutters, drilling cutters, etc.

[0003] The tool holder is a key accessory device in the field of CNC machining that assists the tool holder in changing the chuck tool system. Its main function is to provide temporary positioning and support for the tool holder and to provide basic support conditions for the operator's clamping operation.

[0004] In practical applications, existing tool holders can only achieve basic positioning through the internal contour of the mounting base and the second anti-rotation block when the tool holder is operated horizontally. They lack effective circumferential limiting of the tool holder. This results in poor stability of the tool holder during operation by the operator, and there is a risk that the tool holder will fall upward from the mounting base. This not only affects the accuracy and efficiency of clamping operations, but also poses a hidden danger to the operator's safety. Summary of the Invention

[0005] Therefore, the purpose of this utility model is to provide a clamping device for CNC tool chucks to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a clamping device for a CNC tool chuck, comprising a support base, a limit frame connected to one side of the top of the support base, a third anti-rotation block connected to one side of the bottom of the limit frame, a guide frame fixed to one side of the limit frame, a limit plate penetrating through the top of the guide frame, and an anti-detachment block connected to the lower side of one side of the limit plate.

[0007] By adopting the above technical solutions, the limiting frame can form a top constraint on the horizontally placed tool holder, the third anti-rotation block can enhance the circumferential stability of the tool holder, the guide frame provides precise motion guidance for the limiting plate, and the anti-disengagement block reduces the risk of the limiting plate falling off. The overall structure can specifically solve the problems of poor stability and easy disengagement of the tool holder when operating horizontally, and provide safe and reliable support for clamping operations.

[0008] Furthermore, the limiting frame is rotatably connected to the support base.

[0009] By adopting the above technical solution, when the operator rotates the limiting frame upward, the top space of the placement seat can be opened, making it easy to place the tool handle horizontally into the placement seat; when the limiting frame is rotated downward, it can quickly form a top blocking limit for the placed tool handle, without the need for additional disassembly or assembly of parts, simplifying the tool handle loading and unloading process and improving operational convenience.

[0010] Furthermore, the cross-section of the third anti-rotation block is trapezoidal.

[0011] By adopting the above technical solution, when the limit frame rotates downward to reset, the inclined surface at the bottom of the third anti-rotation block can form a clearance space to avoid hard collision with the tool holder and ensure a smooth reset process; at the same time, the non-inclined side of the trapezoidal structure can be stably inserted into the groove of the tool holder, and cooperate with the second anti-rotation block to form a reliable circumferential limit, reducing the rotational deviation of the tool holder caused by external force operation.

[0012] Furthermore, the two sides of the limiting plate are slidably connected to the limiting frame and the guide frame respectively, and one side of the limiting plate abuts against the support seat.

[0013] By adopting the above technical solution, on the one hand, the sliding connection between the limiting plate and the limiting frame and guide frame ensures that the limiting plate moves only in the preset direction, avoiding deviation that affects the limiting effect; on the other hand, when the limiting plate slides down to abut against the support seat, it can restrict the rotation of the limiting frame and prevent the limiting frame from rotating accidentally during the clamping operation; and when the limiting plate slides upward to release the abutment, the limiting frame can be quickly unlocked.

[0014] Furthermore, the longitudinal section of the limiting plate is shaped like the number "7", and one side of the bottom of the limiting plate abuts against the top of the guide frame.

[0015] By adopting the above technical solution, firstly, the horizontally extended part can serve as a handle, making it convenient for workers to apply force to drive the limit frame to rotate; secondly, the bottom of the vertical part abuts against the top of the guide frame, which can form a downward blockage and reduce the possibility of the limit plate separating from the guide frame due to excessive sliding or gravity; at the same time, the special shape design eliminates the need for additional anti-detachment components, simplifying the structure while improving the stability of the limit plate in use.

[0016] Furthermore, the top of the anti-detachment block abuts against the bottom of the guide frame.

[0017] By adopting the above technical solution, when the limiting plate slides upward along the guide to the top, the top of the anti-detachment block forms a rigid abutment with the bottom of the guide, which can directly block the limiting plate from continuing to move upward and prevent the limiting plate from detaching from the top of the guide. This design does not require a complex locking mechanism, and the anti-detachment effect can be achieved simply through the abutment relationship between the components, which ensures reliability and reduces structural complexity and maintenance costs.

[0018] Furthermore, mounting grooves are provided on both sides of the bottom of the support base, and a placement pad and two first anti-rotation blocks are connected to the other side of the top of the support base. A knife handle is placed on the top of the placement pad, and a placement seat is connected to the outer surface of the support base, and a second anti-rotation block is connected inside the placement seat.

[0019] By adopting the above technical solution, the mounting groove facilitates the fixing of the device to the external workbench with bolts, ensuring overall stability; the placement pad provides support for the vertically placed tool holder, and the two first anti-rotation blocks can reduce the rotational deviation of the vertical tool holder; the placement seat provides a space for the horizontal tool holder, and the internal second anti-rotation block can form a preliminary circumferential limit on the horizontal tool holder.

[0020] Furthermore, a high-strength semi-threaded bolt is connected between the limiting frame and the support base, and the high-strength semi-threaded bolt is detachably connected to the limiting frame and the support base.

[0021] By adopting the above technical solution, the stress-bearing area without threads can enhance the shear resistance and avoid bolt breakage due to long-term stress. At the same time, the detachable design facilitates the subsequent disassembly, maintenance or replacement of the limit frame. When the limit frame is worn, the parts can be separated simply by removing the bolts, without the need for a whole disassembly device, thus reducing the difficulty of maintenance.

[0022] Furthermore, the anti-detachment block is connected to the limiting plate by an internal hex bolt, and the anti-detachment block is detachably connected to the limiting plate by the internal hex bolt.

[0023] By adopting the above technical solution, when the limiting plate needs to be replaced, the bolts can be removed to release the constraint of the anti-detachment block on the limiting plate and pull the limiting plate out of the guide frame; during installation, the bolts are used to clamp and fix it to ensure that the anti-detachment block and the limiting plate are firmly connected; this design takes into account both connection reliability and maintenance convenience, and makes it easy to replace the easily worn limiting plate.

[0024] Furthermore, the longitudinal section of the surface of the anti-detachment block is shaped like the number "7", and the longitudinal section of the side of the anti-detachment block is shaped like the number "T".

[0025] By adopting the above technical solution, the specially shaped anti-detachment block can precisely fit with the adapter groove of the limiting plate; the 7-shaped surface and the T-shaped side can form multi-directional positioning to prevent the limiting plate from shifting during sliding; at the same time, this structure can reduce the shear force borne by the internal hex bolt alone, reduce the risk of bolt breakage, and improve the long-term stability of component connection.

[0026] In summary, the present invention has the following main advantages: 1. This utility model, through the setting of a limiting frame and a third anti-rotation block, allows the limiting frame to rotate on the support base. During operation, rotating the limiting frame upwards opens the top of the placement base, facilitating the smooth horizontal placement of the tool handle. After the tool handle is placed, rotating the limiting frame downwards restrains the tool handle, effectively reducing the risk of the tool handle falling upwards during operation. Simultaneously, when the limiting frame rotates downwards to reset, the third anti-rotation block can be inserted into the groove of the tool handle, working in conjunction with the second anti-rotation block on the placement base to reduce the possibility of the tool handle rotating due to the force applied by the operator. Furthermore, the trapezoidal structure with a sloping bottom side design prevents the bottom side of the third anti-rotation block from colliding with the tool handle when resetting, ensuring smooth operation and further improving the stability and safety of the tool handle during clamping; it also improves the stability of the tool handle when placed horizontally. 2. This utility model, through the setting of a guide frame, a limiting plate, and an anti-detachment block, uses a guide frame fixed to one side of the limiting frame to precisely guide the movement direction of the limiting plate, ensuring that the limiting plate can only slide along the opening direction of the guide frame, thus preventing the limiting plate from deviating and affecting the limiting effect. The longitudinal section of the limiting plate is shaped like a "7". When sliding upward, its side separates from the support seat, releasing the constraint on the limiting frame. At this time, the operator can use the limiting plate as a handle to drive the limiting frame to rotate, simplifying the operation process. When sliding downward, the side of the limiting plate abuts against the support seat, effectively constraining the limiting frame. The limiters prevent accidental rotation of the limit frame, while the 7-shaped structure reduces the possibility of the limit plate separating downwards from the guide frame. The anti-detachment block, when the limit plate slides to its apex, abuts against the bottom of the guide frame, creating an upward blockage and reducing the risk of the limit plate falling off the guide frame. These three elements work together to make the limiting and unlocking operations of the limit frame more convenient and stable, further optimizing the clamping operation experience. This achieves flexible limit control of the limit frame, making operation very simple, while also reducing the risk of component detachment and improving the overall reliability of the device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 This is a schematic diagram of the support structure of this utility model; Figure 4 This is a schematic diagram of the exploded structure of the limiting frame of this utility model; Figure 5 This is a schematic diagram of the exploded structure of the limiting plate of this utility model.

[0028] In the diagram: 1. Support base; 2. Mounting slot; 3. Placement pad; 4. First anti-rotation block; 5. Placement base; 6. Second anti-rotation block; 7. Tool holder; 8. Limiting frame; 9. Third anti-rotation block; 10. Guide frame; 11. Limiting plate; 12. Anti-detachment block. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The embodiments of this utility model will be described below based on its overall structure. Example 1

[0031] A clamping device for a CNC tool chuck, such as Figures 1-5 As shown, the device includes a support base 1, with a limiting frame 8 connected to one side of the top of the support base 1. The limiting frame 8 is rotatably connected to the support base 1. A third anti-rotation block 9 is connected to one side of the bottom of the limiting frame 8. The third anti-rotation block 9 has a trapezoidal cross-section. The operator can use the limiting plate 11 as a handle to apply force to rotate the limiting frame 8 downwards, causing the third anti-rotation block 9 on the bottom side of the limiting frame 8 to gradually approach the tool handle 7. Because the third anti-rotation block 9 has a trapezoidal cross-section and a slope on one side of its bottom, the slope can prevent the bottom of the third anti-rotation block 9 from colliding with the tool handle 7 during the rotation and reset process, ensuring that the limiting frame 8 resets smoothly. When the limiting frame 8 is fully reset, the third anti-rotation block 9 will insert into the groove of the tool handle 7, forming a cooperative relationship with the second anti-rotation block 6 in the placement seat 5, further enhancing the circumferential limiting effect on the tool handle 7, reducing the rotation of the tool handle 7 caused by the applied force during subsequent operation. At the same time, the limiting frame 8 itself will form a shielding constraint on the top of the tool handle 7, effectively reducing the risk of the tool handle 7 falling upwards. A guide frame 10 is fixed to one side of the frame 8. A limit plate 11 passes through the top of the guide frame 10. The two sides of the limit plate 11 are slidably connected to the limit frame 8 and the guide frame 10, respectively. One side of the limit plate 11 abuts against the support base 1. The longitudinal section of the limit plate 11 is shaped like a "7". One bottom side of the limit plate 11 abuts against the top of the guide frame 10. An anti-detachment block 12 is connected to the lower side of one side of the limit plate 11. The top of the anti-detachment block 12 abuts against the bottom of the guide frame 10. The operator first slides the limit plate 11 upwards. One side of the limit frame 8 is fixed. The fixed guide 10 will accurately guide the movement direction of the limit plate 11, ensuring that the limit plate 11 can only slide along the opening direction of the guide 10, and avoid the limit plate 11 from deviating. When the limit plate 11 slides to the top position, the top of the anti-detachment block 12 will abut against the bottom of the guide 10, which will block the limit plate 11 upward and reduce the risk of the limit plate 11 falling off the guide 10. At this time, the staff can use the limit plate 11 as a handle to apply force to rotate the limit frame 8 upward.

[0032] See Figures 1-4In the above embodiment, mounting grooves 2 are provided on both sides of the bottom of the support base 1. The operator uses the mounting grooves 2 and bolts to assemble the entire clamping device with the external workbench or adapter structure to ensure that the device remains stable in subsequent operations and to provide basic bearing conditions for the placement and clamping of the tool handle 7. The other side of the top of the support base 1 is connected to a placement pad 3 and two first anti-rotation blocks 4. The tool handle 7 is placed on the top of the placement pad 3. If vertical operation is required, the tool handle 7 can be placed on the placement pad 3. At this time, the two first anti-rotation blocks 4 on both sides of the placement pad 3 will cooperate with the outer wall of the tool handle 7, which will play a preliminary circumferential limiting role for the vertically placed tool handle 7 and reduce the rotational deviation of the tool handle 7 during vertical operation. The outer surface of the support base 1 is connected to a placement seat 5. The placement seat 5 is connected to a second anti-rotation block 6. The operator can place the tool handle 7 horizontally into the placement seat 5. After the tool handle 7 is placed in, the second anti-rotation block 6 inside the placement seat 5 will form a preliminary cooperation with the tool handle 7. Example 2

[0033] Based on the above embodiment one, the following settings are now made for ease of maintenance.

[0034] See Figures 1-4 In the above embodiment, a high-strength semi-threaded bolt connects the limiting frame 8 and the support base 1. The high-strength semi-threaded bolt is detachably connected to the limiting frame 8 and the support base 1. If the limiting frame 8 needs to be disassembled and maintained later, the operator can first remove the high-strength semi-threaded bolt connecting the limiting frame 8 and the support base 1 to separate the limiting frame 8 from the support base 1. During reinstallation, simply insert the limiting frame 8 into one side of the top of the support base 1, then insert the high-strength semi-threaded bolt from the outer surface of the support base 1 and tighten it to restore the rotational connection and limiting of the limiting frame 8 and the support base 1. An internal hex bolt connects the anti-detachment block 12 and the limiting plate 11. The anti-detachment block 12 is detachably connected to the limiting plate 11 via hex bolts. If the limiting plate 11 needs to be replaced, the operator can first remove the hex bolts connecting the anti-detachment block 12 and the limiting plate 11 to release the constraint of the anti-detachment block 12 on the limiting plate 11. Then, the operator can remove the anti-detachment block 12 from the limiting plate 11. After the anti-detachment block 12 is removed, the limiting plate 11 can be pulled upward along the guide frame 10 to complete the disassembly. When installing a new limiting plate 11, simply pass the limiting plate 11 through the guide frame 10 from top to bottom, then align the mating surfaces of the anti-detachment block 12 and the limiting plate 11, and finally tighten the hex bolts to complete the replacement and fixation of the limiting plate 11. Example 3

[0035] Based on the above embodiment 2, the following settings are now implemented to increase the stability of the structural connection.

[0036] See Figures 2-5In the above embodiment, the longitudinal section of the surface of the anti-detachment block 12 is shaped like the number "7", and the longitudinal section of the side of the anti-detachment block 12 is shaped like the number "T". The longitudinal section of the surface of the anti-detachment block 12 is shaped like the number "7" and the longitudinal section of the side is shaped like the number "T". This shape design enables the anti-detachment block 12 to be stably inserted into the adapter groove of the limiting plate 11, avoiding the limiting plate 11 from moving up and down during the sliding process, thereby reducing the possibility of the internal hex bolt connecting the anti-detachment block 12 and the limiting plate 11 being broken by shear force, and ensuring the stability of the component connection.

[0037] The implementation principle of this utility model is as follows: First, the staff uses the mounting slot 2 and bolts to assemble the entire clamping device with the external workbench or the matching structure to ensure that the device remains stable in subsequent operations and to provide basic bearing conditions for the placement and clamping of the tool holder 7. After the device is fixed, the placement method of the tool handle 7 can be selected according to the actual operation requirements. If vertical operation is required, the tool handle 7 can be placed on the placement pad 3. At this time, the two first anti-rotation blocks 4 on both sides of the placement pad 3 will cooperate with the outer wall of the tool handle 7, which will play a preliminary circumferential limiting role for the vertically placed tool handle 7 and reduce the rotational deviation of the tool handle 7 during vertical operation. If horizontal operation is required, the operator first slides the limiting plate 11 upward. The guide 10 fixed on one side of the limiting frame 8 will play a precise guiding role in the movement direction of the limiting plate 11, ensuring that the limiting plate 11 can only slide along the opening direction of the guide 10, avoiding the deviation of the limiting plate 11. When the limiting plate 11 slides to the top position, the anti-disengagement block 12 will push off. The part will abut against the bottom of the guide frame 10, which will block the limit plate 11 upward and reduce the risk of the limit plate 11 falling off the guide frame 10. At this time, the operator will use the limit plate 11 as a handle to apply force to rotate the limit frame 8 upward. Since the limit frame 8 and the support base 1 are connected by a high-strength semi-threaded bolt, the bolt is not only a connecting part of the two, but also a rotating shaft. Moreover, its force-bearing area is threadless and has stronger shear resistance. After the limit frame 8 is rotated upward, the top of the placement base 5 is in an open state. At this time, the operator can put the tool handle 7 horizontally into the placement base 5. After the tool handle 7 is put in, the second anti-rotation block 6 inside the placement base 5 will first form a preliminary engagement with the tool handle 7. After the tool handle 7 is placed horizontally into the placement seat 5, the operator can use the limiting plate 11 as a handle to apply force to rotate the limiting frame 8 downwards, so that the third anti-rotation block 9 on the bottom side of the limiting frame 8 gradually approaches the tool handle 7. Since the cross-section of the third anti-rotation block 9 is trapezoidal and there is a slope on its bottom side, the slope can prevent the bottom of the third anti-rotation block 9 from colliding with the tool handle 7 during the rotation and reset process, ensuring that the limiting frame 8 resets smoothly. When the limiting frame 8 is fully reset, the third anti-rotation block 9 will be inserted into the groove of the tool handle 7, and cooperate with the second anti-rotation block 6 in the placement seat 5 to further enhance the circumferential limiting effect on the tool handle 7, reduce the rotation of the tool handle 7 caused by the application of force during subsequent operation by the operator, and at the same time, the limiting frame 8 itself will form a shielding constraint on the top of the tool handle 7, effectively reducing the risk of the tool handle 7 falling upwards. Subsequently, the staff manually slides the limiting plate 11 downwards, or relies on the weight of the limiting plate 11 itself to make it slide down. Since the longitudinal section of the limiting plate 11 is shaped like a 7, it slides down until one side of the limiting plate 11 is in contact with the side of the support base 1. During this period, the bottom side of the limiting plate 11 will abut against the top of the guide frame 10 to prevent the limiting plate 11 from separating from the guide frame 10 downwards. At this time, the limiting plate 11 will form a rotation constraint on the limiting frame 8 to prevent the limiting frame 8 from rotating accidentally in subsequent operations, ensuring that the tool holder 7 is always in a stable clamping state. After the chuck or tool replacement operation of the tool holder 7 is completed, the operator can slide the limit plate 11 upward to separate the side of the limit plate 11 from the side of the support seat 1, thereby releasing the rotation constraint on the limit frame 8. At this time, the operator can use the limit plate 11 as a handle to rotate the limit frame 8 upward, opening the top of the placement seat 5. Then, the processed tool holder 7 can be taken out from the placement seat 5, completing the entire clamping operation process. If the limit frame 8 needs to be disassembled and maintained later, the staff can first remove the high-strength semi-threaded bolts connecting the limit frame 8 and the support base 1 to separate the limit frame 8 from the support base 1. For reinstallation, simply insert the limit frame 8 into the top side of the support base 1, then insert the high-strength semi-threaded bolts from the outer surface of the support base 1 and tighten them to restore the rotational connection and limit position of the limit frame 8 and the support base 1. If the limit plate 11 needs to be replaced, the staff can first remove the internal hex bolts connecting the anti-detachment block 12 and the limit plate 11 to release the constraint of the anti-detachment block 12 on the limit plate 11. Then, the staff can remove the anti-detachment block 12 from the limit plate 11. After removing the anti-detachment block 12, the limit position will be restored. Plate 11 can be pulled upward along the guide frame 10 to complete the disassembly; when installing a new limiting plate 11, simply pass the limiting plate 11 through the guide frame 10 from top to bottom, then align the anti-detachment block 12 with the mating surface of the limiting plate 11, and finally tighten the hexagon socket bolts to complete the replacement and fixation of the limiting plate 11. At the same time, the longitudinal section of the surface of the anti-detachment block 12 is shaped like a "7" and the longitudinal section of the side is shaped like a "T". This shape design allows the anti-detachment block 12 to be stably inserted into the mating groove of the limiting plate 11, avoiding vertical displacement of the limiting plate 11 during sliding, thereby reducing the possibility of the hexagon socket bolts connecting the anti-detachment block 12 and the limiting plate 11 being broken by shear force, and ensuring the stability of the component connection.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A clamping device for a CNC tool chuck, comprising a support base (1), characterized in that: The support base (1) is connected to a limiting frame (8) on one side of the top, and a third anti-rotation block (9) is connected to the bottom side of the limiting frame (8). A guide frame (10) is fixed on one side of the limiting frame (8), and a limiting plate (11) passes through the top of the guide frame (10). An anti-detachment block (12) is connected to the lower side of the limiting plate (11).

2. The clamping device for CNC tool chucks according to claim 1, characterized in that: The limiting frame (8) is rotatably connected to the support base (1).

3. The clamping device for CNC tool chucks according to claim 1, characterized in that: The cross-section of the third anti-rotation block (9) is trapezoidal.

4. The clamping device for CNC tool chucks according to claim 1, characterized in that: The limiting plate (11) is slidably connected to the limiting frame (8) and the guide frame (10) on both sides, and one side of the limiting plate (11) abuts against the support seat (1).

5. The clamping device for the CNC tool chuck according to claim 4, characterized in that: The longitudinal section of the limiting plate (11) is shaped like the number "7", and the bottom side of the limiting plate (11) abuts against the top of the guide frame (10).

6. The clamping device for CNC tool chucks according to claim 5, characterized in that: The top of the anti-detachment block (12) abuts against the bottom of the guide frame (10).

7. The clamping device for CNC tool chucks according to claim 1, characterized in that: The support base (1) has mounting grooves (2) on both sides of its bottom. The other side of the top of the support base (1) is connected to a placement pad (3) and two first anti-rotation blocks (4). A knife handle (7) is placed on the top of the placement pad (3). A placement seat (5) is connected to the outer surface of the support base (1), and a second anti-rotation block (6) is connected inside the placement seat (5).

8. The clamping device for CNC tool chucks according to claim 2, characterized in that: A high-strength semi-threaded bolt is connected between the limiting frame (8) and the support base (1), and the high-strength semi-threaded bolt is detachably connected to the limiting frame (8) and the support base (1).

9. The clamping device for CNC tool chucks according to claim 6, characterized in that: The anti-detachment block (12) is connected to the limiting plate (11) by an internal hex bolt, and the anti-detachment block (12) is detached from the limiting plate (11) by the internal hex bolt.

10. The clamping device for a CNC tool chuck according to claim 9, characterized in that: The longitudinal section of the surface of the anti-detachment block (12) is shaped like the number "7", and the longitudinal section of the side of the anti-detachment block (12) is shaped like the number "T".

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