Multi-tool-bit machine tool

Abstract

The invention relates to the technical field of machine tools, in particular to a multi-tool-bit machine tool which comprises a workbench, a workpiece clamp is arranged on the workbench and comprises two clamping seats, the clamping seats are arranged at the two ends of the workbench in the length direction respectively, and clamping heads used for clamping workpieces are rotationally connected to the clamping seats. The clamping base is further provided with a driving motor used for driving the clamping head to rotate. A front tool apron is arranged on one side of the workpiece clamp in the length direction, a rear tool apron is arranged on the other side of the workpiece clamp, tool turrets used for installing tools are rotationally connected to the front tool apron and the rear tool apron correspondingly, rotating motors used for driving the tool turrets to rotate are further arranged on the front tool apron and the rear tool apron correspondingly, and the tool turrets on the front tool apron and the tool turrets on the rear tool apron do not interfere with each other. The front tool apron and the rear tool apron are arranged on the two sides of the workpiece clamp respectively and provided with the tool turrets and the rotating motors respectively, it is guaranteed that the front tool turrets and the rear tool turrets do not interfere with each other, workpieces can be machined in two directions at the same time, and the machining range and efficiency of the machine tool are improved.

Description

Technical Field

[0001] The invention relates to the technical field of machine tools, in particular to a multi-tool machine tool. Background Art

[0002] Machine tools are machines that manufacture machines and machinery. Machine tools play a major role in the modernization of the national economy. More and more mechanical equipment requires the use of machine tools for processing. In order to improve the convenience and accuracy of processing, digital control machine tools, or CNC machine tools, can more accurately control the size of processing and have become the choice of more manufacturers.

[0003] In the prior art, the workpiece is usually clamped and various cutting tools are then set on the turret. The cutting tools can process the product workpiece, but this type of machine tool can only process one shape at a time and cannot process different shapes at the same time, resulting in low overall processing efficiency. Summary of the invention

[0004] In order to solve the problem that machine tools under the prior art usually clamp the workpiece and then set various tools on the turret, the tools can process the product workpiece, but this type of machine tool can only process one shape at a time and cannot process different shapes at the same time, resulting in low overall processing efficiency, the present application uses a multi-tool machine tool, and the specific plan is as follows.

[0005] A multi-tool head machine tool comprises a workbench, on which a workpiece clamp is arranged, the workpiece clamp comprises two clamping seats, the clamping seats are respectively arranged at both ends of the length direction of the workbench, a clamping head for clamping a workpiece is rotatably connected to the clamping seat, and a driving motor for driving the clamping head to rotate is also arranged on the clamping seat; A front tool seat is provided on one side of the workpiece clamp in the length direction, and a rear tool seat is provided on the other side of the workpiece clamp. The front tool seat and the rear tool seat are both rotatably connected with a turret for installing a tool. The front tool seat and the rear tool seat are also each provided with a rotating motor for driving the turret to rotate, and the turret on the front tool seat and the turret on the rear tool seat do not interfere with each other.

[0006] By adopting the above technical scheme, the workpiece clamp arranged on the workbench can stably clamp the workpiece, and the clamping head on the clamping seat can rotate under the drive of the driving motor to realize multi-angle processing of the workpiece, while the front tool seat and the rear tool seat are respectively arranged on both sides of the workpiece clamp, each equipped with a turret and a rotating motor to ensure that the front and rear turrets do not interfere with each other, and the workpiece can be processed from two directions at the same time, thereby improving the processing range and efficiency of the machine tool.

[0007] Optionally, a clamping slide is provided on the workbench corresponding to the clamping seat, the clamping seat is fixedly provided on the clamping slide, a transverse linear mechanism is provided on the workbench corresponding to the clamping slide, the transverse linear mechanism is provided along the length direction of the workbench, the clamping slide is installed on the transverse linear mechanism and slides along the transverse linear mechanism.

[0008] By adopting the above technical solution, the clamping seat is fixedly arranged on the clamping slide, and the clamping slide is installed on the linear mechanism and can slide along the linear mechanism, thereby realizing the position adjustment of the clamping seat and the workpiece clamp thereon in the length direction of the workbench, and being able to clamp workpieces of different sizes, thereby improving the flexibility and accuracy of workpiece processing. At the same time, this design enables the workpiece to be moved quickly and accurately, thereby improving the processing efficiency.

[0009] Optionally, a vertical slide is provided on the front tool seat, the turret and the rotary motor are both fixedly mounted on the vertical slide, and the vertical slide is slidably connected to the front tool seat and can slide along the vertical direction of the front tool seat.

[0010] By adopting the above technical solution, a vertical slide is arranged on the front tool holder, so that the turret and the rotating motor can be fixedly installed on the vertical slide, and the vertical slide is slidably connected with the front tool holder and can slide along the vertical direction of the front tool holder. This not only improves the flexibility of the turret, enabling it to process at different heights, but also enhances the adaptability of the machine tool, and is suitable for the height adjustment requirements of various workpieces, thereby improving the processing accuracy and efficiency.

[0011] Optionally, a transverse linear mechanism is also provided on the workbench corresponding to the front tool seat, and the transverse linear mechanism is arranged along the length direction of the workbench. A longitudinal linear mechanism is installed on the transverse linear mechanism, and the longitudinal linear mechanism can slide along the transverse linear mechanism. The longitudinal linear mechanism is arranged along the width direction of the workbench, and the front tool seat is installed on the longitudinal linear mechanism, and the front tool seat can slide along the longitudinal linear mechanism.

[0012] By adopting the above technical solution, the front tool holder can achieve accurate three-dimensional positioning under the cooperation of the horizontal linear mechanism and the vertical linear mechanism, thereby improving the accuracy and flexibility of tool processing. Specifically, the horizontal linear mechanism enables the front tool holder to move along the length direction of the workbench, while the vertical linear mechanism enables the front tool holder to move along the width direction of the workbench, ensuring that the tool can perform efficient and accurate processing operations at different positions.

[0013] Optionally, the front tool seat includes a front left tool seat and a front right tool seat, and the front left tool seat and the front right tool seat are respectively arranged at two ends of the length direction of the workbench, and the front left tool seat and the front right tool seat are both provided with a turret and a rotating motor.

[0014] By adopting the above technical solution, the front tool holder is divided into the front left tool holder and the front right tool holder, which are respectively arranged at the two ends of the length direction of the worktable, and each tool holder is provided with a turret and a rotating motor. This design enables the machine tool to perform multi-point processing simultaneously in the length direction of the worktable, improving processing efficiency and precision. The front left tool holder and the front right tool holder are independently controlled and do not interfere with each other. The position and angle of the tool can be flexibly adjusted to adapt to different types of workpieces and processing requirements.

[0015] Optionally, a horizontal linear mechanism and a longitudinal linear mechanism with the same structure are also provided on the workbench corresponding to the rear tool seat. The rear tool seat is fixedly installed on the longitudinal linear mechanism. A vertical slide is also provided on the rear tool seat. The turret and rotating motor of the rear tool seat are also installed on the vertical slide.

[0016] By adopting the above technical solution, the rear tool holder is also provided with a horizontal linear mechanism and a vertical linear mechanism of the same structure, so that the rear tool holder can be flexibly moved on the workbench, improving the processing accuracy and efficiency. At the same time, a vertical slide is also provided on the rear tool holder, so that the turret and the rotary motor can slide in the vertical direction, further increasing the adjustment range and flexibility of the tool to meet the processing requirements of different heights and different positions.

[0017] Optionally, the rear tool holder is also provided with a rotating motor, which is arranged perpendicular to the rotary motor on the rear tool holder, and the rotating shaft of the rotating motor is fixedly connected to the turret and is used to rotate the turret.

[0018] By adopting the above technical solution, the rotary motor on the rear tool holder can realize the rotation of the turret in the horizontal plane, so that the tool on the turret can be processed at multiple angles, increasing the processing flexibility and adaptability of the machine tool, and enabling the rear tool holder to process in four dimensions.

[0019] Optionally, a transmission gear is arranged between two clamping seats on the workbench, the transmission gear is rotatably connected to the workbench, the clamping seat is provided with a transmission rack facing the transmission gear, the transmission rack is meshed with the transmission gear, the transmission racks are respectively arranged on both sides of the transmission gear, and the transmission racks move towards and away from each other under the drive of the transmission gear.

[0020] By adopting the above technical solution, the precise synchronous movement of the clamping seat is achieved, ensuring the stability and accuracy of the workpiece during processing, reducing the situation of asynchronous clamping of the workpiece, and further improving the stability of clamping.

[0021] Optionally, a rotating rod is provided on the workbench corresponding to the transmission gear, the rotating rod is rotatably connected to the workbench, and a driving gear is also fixedly provided on the rotating rod. A pulling chain is provided on the driving gear, one end of the pulling chain is fixedly connected to the driving gear, and the end of the pulling chain away from the driving rack is fixedly connected to a limiting piece, and the limiting piece is slidably connected to the longitudinal linear mechanism, and the limiting piece slides along the width direction of the longitudinal linear mechanism. The limiting piece is used to abut the tool seat and does not interfere with the tool seat after being pulled. A reset spring is also provided on the longitudinal linear mechanism, and the reset spring has a tendency to push the limiting piece to abut the tool seat.

[0022] By adopting the above technical solution, a pulling chain and a limit member are set. Only when the clamping seat moves to clamp the workpiece can the limit member be pulled from the longitudinal linear mechanism to enable the tool seat to move. When the limit member is not pulled, the tool seat cannot move. When the workpiece is not clamped, the tool cannot move toward the workpiece, thereby reducing the possibility of misprocessing and further improving the processing accuracy.

[0023] Optionally, a guide rod is further provided on the workbench, and the guide rod is arranged corresponding to the position of the limit member, the guide rod is arranged between the driving gear and the longitudinal linear mechanism, and the pulling chain is arranged to bypass the guide rod.

[0024] In summary, the present application has at least the following beneficial effects: the provision of a guide rod can guide the pulling chain, so that the pulling of the pulling chain on the limiting member is more stable, further improving the limiting effect.

[0025] 1. The present application solves the problem that in the prior art, the workpiece is usually clamped during machine tool processing, and then various cutting tools are arranged on the turret. The cutting tools can process the product workpiece, but this type of machine tool can only process one shape at a time and cannot process different shapes at the same time, resulting in low overall processing efficiency. The present application sets multiple tool holders, and can process the workpiece through multiple turrets and cutting tools at the same time, and can process multiple shapes on the workpiece at the same time, thereby improving the overall processing efficiency.

[0026] 2. The present application also reduces the possibility of mis-processing of the workpiece and further improves the efficiency and accuracy of processing by providing a driving gear and a driving rack that enable the tool holder to move synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of the first embodiment.

[0028] Figure 2 It is a three-dimensional diagram of the first embodiment, mainly used to show the internal situation.

[0029] Figure 3 It is a cross-sectional view of the second embodiment.

[0030] Figure 4 It is a top view of the second embodiment.

[0031] Description of reference numerals: 1. Workbench; 11. Workpiece clamp; 111. Clamp seat; 112. Clamp head; 113. Drive motor; 12. Turret; 13. Rotating motor; 14. Clamping slide; 15. Horizontal linear mechanism; 16. Longitudinal linear mechanism; 161. Pull chain; 162. Limiting piece; 163. Extension block; 164. Sliding groove; 164. Reset spring; 17. Rotating rod; 171. Transmission gear; 172. Drive gear; 18. Transmission rack; 19. Guide rod; 2. Cover; 21. Sliding door; 3. Front knife seat; 31. Front left knife seat; 32. Front right knife seat; 4. Rear knife seat; 41. Vertical slide seat. DETAILED DESCRIPTION

[0032] The present application is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0033] Embodiment 1 A multi-tool machine tool, such as Figure 1 and Figure 2 As shown, it includes a workbench 1, a cover 2 is provided on the workbench 1, and a horizontal sliding door 21 is provided on the cover 2. The horizontal sliding door 21 can be opened to adjust the inside of the workbench 1. A workpiece clamp 11 is provided on the workbench 1, and the workpiece clamp 11 includes two clamp seats 111, and the clamp seats 111 are respectively provided at both ends of the length direction of the workbench 1. A clamp head 112 for clamping a workpiece is rotatably connected to the clamp seat 111, and a driving motor 113 for driving the clamp head 112 to rotate is also provided on the clamp seat 111. In specific implementation, the clamp head 112 adopts a pneumatic clamp, and the pneumatic clamp is directly connected to the rotating shaft of the driving motor 113, which can clamp the workpiece simply and conveniently, and is easy to implement. After the clamping is completed, it can be driven by the driving motor 113.

[0034] like Figure 1 and Figure 2As shown, a front tool holder 3 is provided on one side of the length direction of the workpiece clamp 11, and a rear tool holder 4 is provided on the other side of the workpiece clamp 11. A turret 12 for installing a tool is rotatably connected to the front tool holder 3 and the rear tool holder 4. A rotating motor 13 for driving the turret 12 to rotate is also provided on the front tool holder 3 and the rear tool holder 4. The turret 12 on the front tool holder 3 and the turret 12 on the rear tool holder 4 do not interfere with each other. In specific implementation, the front tool holder 3 is arranged lower than the rear tool holder 4. The turret 12 on the front tool holder 3 processes the workpiece at the lower side of the workpiece, and the turret 12 on the rear tool holder 4 can process the upper side of the workpiece, and can process multiple points or multiple shapes on the workpiece at the same time, reducing the interference when processing the workpiece at the same time, further increasing the processing efficiency of the workpiece, and can further improve the processing accuracy when processing the same point at the same time.

[0035] like Figure 1 and Figure 2 As shown, a clamping slide 14 is provided on the workbench 1 corresponding to the clamping seat 111, and the clamping seat 111 is fixedly provided on the clamping slide 14. A transverse linear mechanism 15 is provided on the workbench 1 corresponding to the clamping slide 14, and the transverse linear mechanism 15 is provided along the length direction of the workbench 1. The clamping slide 14 is installed on the transverse linear mechanism 15 and slides along the transverse linear mechanism 15. In specific implementation, the transverse linear mechanism 15 is provided in sections corresponding to two clamping slides 14, each controlling the corresponding clamping slide 14. The clamping slide 14 can accurately control the clamping seats 111 on both sides, and can also control the two clamping seats 111 to move at the same time after clamping, further improving the convenience of clamping.

[0036] like Figure 1 and Figure 2 As shown, a vertical slide 41 is provided on the front tool seat 3, the turret 12 and the rotary motor 13 are both fixedly mounted on the vertical slide 41, and the vertical slide 41 is slidably connected to the front tool seat 3 and can slide along the vertical direction of the front tool seat 3. In specific implementation, the vertical slide 41 also slides in a linear mechanism, so that the processing position and angle can be adjusted during processing, further improving the processing convenience.

[0037] like Figure 1 and Figure 2 As shown, the workbench 1 is also provided with a transverse linear mechanism 15 corresponding to the front tool holder 3, and the transverse linear mechanism 15 is arranged along the length direction of the workbench 1. A longitudinal linear mechanism 16 is installed on the transverse linear mechanism 15, and the longitudinal linear mechanism 16 can slide along the transverse linear mechanism 15. The longitudinal linear mechanism 16 is arranged along the width direction of the workbench 1, and the front tool holder 3 is installed on the longitudinal linear mechanism 16, and the front tool holder 3 can slide along the longitudinal linear mechanism 16. In specific implementation, the front tool holder 3 can move in a three-dimensional coordinate system, and can be more accurate when processing, further improving the processing quality.

[0038] like Figure 1 and Figure 2 As shown, the front tool holder 3 includes a front left tool holder 31 and a front right tool holder 32, which are respectively arranged at the two ends of the length direction of the workbench 1, and the front left tool holder 31 and the front right tool holder 32 are both provided with a turret 12 and a rotating motor 13. In specific implementation, the horizontal linear mechanism 15 and the longitudinal linear mechanism 16 are arranged in a group corresponding to the front left tool holder 31 and the front right tool holder 32, and the front left tool holder 31 and the front right tool holder 32 are independently controlled. The front left tool holder 31 and the front right tool holder 32 can process two positions of the workpiece at the same time, thereby further improving the processing efficiency.

[0039] like Figure 1 and Figure 2 As shown, the workbench 1 is also provided with a horizontal linear mechanism 15 and a longitudinal linear mechanism 16 of the same structure corresponding to the rear tool holder 4, the rear tool holder 4 is fixedly mounted on the longitudinal linear mechanism 16, a vertical slide 41 is also provided on the rear tool holder 4, and the turret 12 and the rotating motor 13 of the rear tool holder 4 are also mounted on the vertical slide 41. In specific implementation, the rear tool holder 4 can also move in a three-dimensional coordinate system, further improving the processing accuracy.

[0040] like Figure 1 and Figure 2 As shown, the rear tool holder 4 is also provided with a rotating motor, which is arranged perpendicular to the rotating motor 13 on the rear tool holder 4, and the rotating shaft of the rotating motor is fixedly connected to the turret 12 and is used to rotate the turret 12. In specific implementation, the rear tool holder 4 can be processed in four dimensions, further increasing the processing flexibility and adaptability of the machine tool.

[0041] Working principle: First, clamp the workpiece by the clamping seat 111, and then input the command to perform multi-angle simultaneous processing on the workpiece through two front tool seats 3 and one rear tool seat 4. Using one device, multiple processing can be completed simultaneously, which increases the efficiency and accuracy of processing.

[0042] Embodiment 2 like Figure 3 and Figure 4 As shown, a transmission gear 171 is arranged between two clamping seats 111 on the workbench 1, and the transmission gear 171 is rotatably connected to the workbench 1, and a transmission rack 18 is arranged on the clamping seat 111 toward the transmission gear 171, and the transmission rack 18 is meshed with the transmission gear 171, and the transmission rack 18 is respectively arranged on both sides of the transmission gear 171, and the transmission rack 18 moves toward and away from each other under the drive of the transmission gear 171. In specific implementation, the transmission rack 18 can play a role of mutual transmission when the two clamping seats 111 move toward each other, and when one of them is not clamped in place, it can be driven by the other clamping seat 111, thereby improving the accuracy of clamping.

[0043] like Figure 3 and Figure 4 As shown, a rotating rod 17 is provided on the workbench 1 corresponding to the transmission gear 171, and the rotating rod 17 is rotatably connected to the workbench 1. A driving gear 172 is also fixedly provided on the rotating rod 17, and a pulling chain 161 is provided on the driving gear 172. One end of the pulling chain 161 is fixedly connected to the driving gear 172, and the end of the pulling chain 161 away from the driving rack is fixedly connected to a limiting member 162. The limiting member 162 is slidably connected to the longitudinal linear mechanism 16, and the limiting member 162 slides along the width direction of the longitudinal linear mechanism 16. The limiting member 162 is used to abut the tool seat and does not interfere with the tool seat after being pulled. A reset spring 164 is also provided on the longitudinal linear mechanism 16, and the reset spring 164 has a tendency to push the limiting member 162 to abut the tool seat. In specific implementation, a pulling chain 161 is provided on the rear tool holder 4, a limiting member 162 is provided on the longitudinal linear mechanism 16 on the rear tool holder 4, an extension block 163 is provided on the longitudinal linear mechanism 16 corresponding to the limiting member 162, the extension block 163 does not interfere with the operation of the linear mechanism, a sliding groove 164 is provided in the extension block 163, the sliding groove 164 extends into the longitudinal linear mechanism 16, and a reset spring 164 is also provided in the extension block 163. The length of the pulling chain 161 can be adjusted in advance before work, and the limiting member 162 can be pulled when the pulling chain 161 is clamped on the clamping seat 111 to clamp the workpiece. When the workpiece is not clamped, the movement of the tool holder can be limited by the limiting member 162, and when the workpiece is clamped 111 tightly, the limiting member 162 can be completely pulled into the extension block 163, so that the tool holder can move toward the workpiece normally for processing. In other embodiments, an extension block 163 and a limiting member 162 may be provided on each tool holder, and a plurality of driving gears 172 may be provided on the rotating rod 17 to pull different limiting members 162 .

[0044] like Figure 3 and Figure 4 As shown, a guide rod 19 is also provided on the workbench 1, the guide rod 19 is fixedly connected to the workbench 1, the guide rod 19 is arranged corresponding to the position of the limiter 162, the guide rod 19 is arranged between the driving gear 172 and the longitudinal linear mechanism 16, and the pulling chain 161 is arranged to bypass the guide rod 19. In specific implementation, the pulling chain 161 is parallel to the direction of pulling the limiter 162 after being adjusted by the guide rod 19, so that the limiter 162 can be pulled better.

[0045] Working principle: The basic working principle is the same as that of embodiment 1, but a driving gear 172 and a driving rack are provided to enable the tool holder to move synchronously. At the same time, the movement of the limit member 162 can be controlled by the driving gear 172 and the driving rack, so that processing cannot be performed when the workpiece is not clamped, thereby further improving the accuracy of processing and reducing the looseness of the workpiece.

[0046] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-tool machine tool, comprising a workbench (1), characterized in that: A workpiece clamp (11) is provided on the workbench (1), and the workpiece clamp (11) comprises two clamping seats (111), and the clamping seats (111) are respectively provided at two ends of the workbench (1) in the length direction, and a clamping head (112) for clamping a workpiece is rotatably connected to the clamping seat (111), and a driving motor (113) for driving the clamping head (112) to rotate is also provided on the clamping seat (111); A front tool seat (3) is provided on one side of the workpiece clamp (11) in the length direction, and a rear tool seat (4) is provided on the other side of the workpiece clamp (11); a turret (12) for installing a tool is rotatably connected to the front tool seat (3) and the rear tool seat (4); a rotating motor (13) for driving the turret (12) to rotate is also provided on the front tool seat (3) and the rear tool seat (4); the turret (12) on the front tool seat (3) and the turret (12) on the rear tool seat (4) do not interfere with each other.

2. A multi-tool head machine tool according to claim 1, characterized in that: A clamping slide (14) is provided on the workbench (1) corresponding to the clamping seat (111); the clamping seat (111) is fixedly provided on the clamping slide (14); a transverse linear mechanism (15) is provided on the workbench (1) corresponding to the clamping slide (14); the transverse linear mechanism (15) is provided along the length direction of the workbench (1); the clamping slide (14) is installed on the transverse linear mechanism (15) and slides along the transverse linear mechanism (15).

3. A multi-tool head machine tool according to claim 2, characterized in that: A vertical slide (41) is arranged on the front knife seat (3); the turret (12) and the rotary motor (13) are both fixedly mounted on the vertical slide (41); the vertical slide (41) is slidably connected to the front knife seat (3) and can slide along the vertical direction of the front knife seat (3).

4. A multi-tool head machine tool according to claim 3, characterized in that: The workbench (1) is also provided with a transverse linear mechanism (15) corresponding to the front tool seat (3). The transverse linear mechanism (15) is arranged along the length direction of the workbench (1). A longitudinal linear mechanism (16) is installed on the transverse linear mechanism (15). The longitudinal linear mechanism (16) can slide along the transverse linear mechanism (15). The longitudinal linear mechanism (16) is arranged along the width direction of the workbench (1). The front tool seat (3) is installed on the longitudinal linear mechanism (16). The front tool seat (3) can slide along the longitudinal linear mechanism (16).

5. The multi-tool head machine tool according to claim 3, characterized in that: The front tool seat (3) comprises a front left tool seat (31) and a front right tool seat (32), wherein the front left tool seat (31) and the front right tool seat (32) are respectively arranged at two ends of the length direction of the workbench (1), and the front left tool seat (31) and the front right tool seat (32) are both provided with a turret (12) and a rotating motor (13).

6. A multi-tool head machine tool according to claim 4, characterized in that: The workbench (1) is also provided with a horizontal linear mechanism (15) and a longitudinal linear mechanism (16) with the same structure corresponding to the rear tool seat (4); the rear tool seat (4) is fixedly mounted on the longitudinal linear mechanism (16); a vertical slide seat (41) is also provided on the rear tool seat (4); and a turret (12) and a rotating motor (13) of the rear tool seat (4) are also mounted on the vertical slide seat (41).

7. A multi-tool head machine tool according to claim 6, characterized in that: The rear tool seat (4) is also provided with a rotating motor, which is arranged perpendicular to the rotating motor (13) on the rear tool seat (4), and the rotating shaft of the rotating motor is fixedly connected to the turret (12) and is used to rotate the turret (12).

8. The multi-tool head machine tool according to claim 4, characterized in that: A transmission gear (171) is arranged between two clamping seats (111) on the workbench (1), the transmission gear (171) is rotatably connected to the workbench (1), the clamping seat (111) is provided with a transmission rack (18) facing the transmission gear (171), the transmission rack (18) is meshed with the transmission gear (171), the transmission rack (18) is respectively arranged on both sides of the transmission gear (171), and the transmission rack (18) moves towards and away from each other under the drive of the transmission gear (171).

9. A multi-tool head machine tool according to claim 8, characterized in that: A rotating rod (17) is provided on the workbench (1) corresponding to the transmission gear (171), the rotating rod (17) is rotatably connected to the workbench (1), the rotating rod (17) is also fixedly provided with a driving gear (172), the driving gear (172) is provided with a pulling chain (161), one end of the pulling chain (161) is fixedly connected to the driving gear (172), and the end of the pulling chain (161) away from the driving rack is fixedly connected to the driving gear (172). A limit piece (162) is connected, the limit piece (162) is slidably connected to the longitudinal linear mechanism (16), the limit piece (162) slides along the width direction of the longitudinal linear mechanism (16), the limit piece (162) is used to abut against the knife seat and does not interfere with the knife seat after being pulled, and a return spring (164) is also provided on the longitudinal linear mechanism (16), and the return spring (164) has a tendency to push the limit piece (162) to abut against the knife seat.

10. The multi-tool head machine tool according to claim 9, characterized in that: The workbench (1) is also provided with a guide rod (19), the guide rod (19) is arranged corresponding to the position of the limiter (162), the guide rod (19) is arranged between the driving gear (172) and the longitudinal linear mechanism (16), and the pulling chain (161) is arranged to bypass the guide rod (19).

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