High-rigidity wide guide rail bench lathe

Abstract

The invention relates to a high-rigidity wide guide rail bench lathe which comprises an electric chuck, a guide rail and a tool rest, the electric chuck is used for clamping a workpiece, the guide rail guides the movement of the tool rest, the tool rest is used for installing a tool, and the high-rigidity wide guide rail bench lathe is characterized in that the tool rest comprises a tool holder, a clamping block, a pressing plate, a driving part, a controller and a locking part; due to the adoption of the technical scheme, when the high-rigidity wide-guide-rail bench lathe is used for clamping a tool, a plurality of faces of the tool can be automatically clamped, so that the possibility that the tool deviates due to radial force is reduced, the operation safety is guaranteed to a certain degree, and meanwhile, the machining efficiency is improved. And the cutter can be clamped by pushing the cutter between the clamping blocks, so that the operation steps are simplified to a certain extent, and the time is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of bench lathes, and particularly to a high-rigidity wide-guide bench lathe. Background Art

[0002] A high-rigidity wide-guide bench lathe is a numerically controlled machine tool specifically designed for high-precision and high-efficiency turning machining. By optimizing the bed structure, guide rail design, and rigidity of the spindle system, and adopting a wide-guide rail layout, the load-bearing capacity, vibration resistance, and machining stability of the machine tool are significantly improved. This type of lathe is usually used for machining complex shaft parts and disc parts, and is particularly suitable for application scenarios with high requirements for machining accuracy and surface quality, as well as heavy cutting machining of materials such as stainless steel and titanium alloy.

[0003] During the heavy cutting process of a high-rigidity wide-guide bench lathe, due to the large hardness of the workpiece, the tool will be subjected to a large heavy cutting force, and its radial cutting force acts vertically on the tool. There is no structure for supporting the tool in the horizontal direction of the existing tool holder, and the tool is prone to offset during cutting on the high-rigidity wide-guide bench lathe; the existing tool holder installs the tool by the operator tightening the tool with screws. If the operator operates improperly, the tool will be poorly clamped and prone to danger during cutting, and the method of the operator tightening the screws is relatively troublesome; at the same time, the cutting heat generated during the cutting process will cause the tool to expand due to heat and then deform, and this thermal deformation will also affect the accuracy and stability of the tool, thereby affecting the cutting accuracy of the lathe.

[0004] ‌‌‌ Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a high-rigidity wide-guide bench lathe to solve the problems that there is no structure for supporting the tool in the horizontal direction of the existing tool holder, and the tool is prone to offset during cutting on the high-rigidity wide-guide bench lathe; the existing tool holder installs the tool by the operator tightening the tool with screws. If the operator operates improperly, the tool will be poorly clamped and prone to danger during cutting, and the method of the operator tightening the screws is relatively troublesome; at the same time, the cutting heat generated during the cutting process will cause the tool to expand due to heat and then deform, and this thermal deformation will also affect the accuracy and stability of the tool, thereby affecting the cutting accuracy of the lathe.

[0006] The present invention is achieved through the following technical solutions: A high-rigidity wide-guideway table lathe, comprising an electric chuck, a guideway and a tool holder, wherein the electric chuck is used to clamp a workpiece, the guideway guides the movement of the tool holder, the tool holder is used to install a tool, the tool holder comprises a tool clamp, a clamping block, a pressure plate, a driving unit, a controller and a locking unit, the clamping blocks are multiple, the multiple clamping blocks are arranged opposite to each other in pairs, the multiple clamping blocks opposite to each other are sequentially arranged at intervals along the length direction of the tool clamp, the clamping blocks can be slidably connected to the tool clamp, and the clamping blocks are elastically connected to the tool clamp; The pressure plate is located above the multiple clamping blocks, and the driving part is connected to any clamping block among the multiple clamping blocks, and any clamping block is an active clamping part, and the active clamping part is electrically connected to the controller, and the driving part is electrically connected to the controller. The driving part is used to drive the pressure plate to move downward when the active clamping plate is moved by the tool, and the locking part is used to lock the position of the clamping block when the pressure plate moves downward.

[0007] Furthermore, the tool clamp includes a clamping groove, a support column and a first spring, the support column is connected to the bottom wall of the clamping groove, there are multiple support columns, and the side surfaces of the multiple support columns are recessed inward to form guide grooves, and the multiple clamping blocks are slidingly connected to the multiple guide grooves one by one, the first spring is arranged in the guide groove, and the two ends of the first spring are respectively connected to the side walls of the guide groove and the side walls of the clamping block.

[0008] Furthermore, the driving part includes a screw, a first gear, a first pole piece, a motor, a second gear and a first pressure sensor, the screw can be vertically rotatably connected to the clamping groove, the pressure plate is provided with a screw hole, the screw is screwed into the screw hole, the upper end of the screw is connected to the first gear, the motor is connected to the clamping groove, the output end of the motor is connected to the second gear, the second gear is meshed with the first gear, the side wall of the active clamping part and the corresponding side wall of the guide groove are connected to the first pole piece, the two first pole pieces are electrically connected to the controller, the contact of the two first pole pieces can enable the controller to control the rotation of the motor, the first pressure sensor is connected to the lower end surface of the pressure plate, and the first pressure sensor is electrically connected to the controller.

[0009] Furthermore, a locking groove is provided on the side of the clamping block; the locking part includes a push rod and a locking rod, the push rod can be connected to the support column in an up-and-down sliding manner, the upper end of the push rod is connected to the pressure plate, the locking rod can be rotatably connected to the locking groove with the length direction of the locking groove as the rotation center line, the side wall of the locking rod is provided with a ratchet, the side of the tooth part of the ratchet away from the direction of the support column is a vertical surface, and the lower side of the locking groove is formed with a tooth groove matching the ratchet; The locking rod is connected with a resisting plate on the side where the ratchet teeth are located. The resisting plate is located below the pushing rod. The locking rod is sleeved with a second spring, and two ends of the second spring are respectively connected with the lock groove and the locking rod. A first through hole is formed along the length direction of the lock groove on the support column corresponding to the active clamping part. The other end of the locking rod corresponding to the active clamping part passes through the first through hole and protrudes from the side elevation of the support column. Second pole pieces are arranged on the opposite side of the side of the locking rod where the ratchet teeth are located corresponding to the locking part and on the side of the first through hole close to the pushing rod. Both of the two second pole pieces are electrically connected with the controller, and the contact of the two second pole pieces can enable the controller to control the rotation of the motor.

[0010] Further, a groove is formed by downward depression on the upper end face of the active clamping part. A sliding base and a rotating rod are further included. The sliding base is slidably connected in the groove. The motor is connected to the upper end face of the sliding base. The rotating rod is arranged vertically. The lower end of the rotating rod is connected to the output end of the motor. A second through hole is formed on the pressing plate. The rotating rod passes through the second through hole and is connected with a second gear. A positioning groove is formed by inward depression on the top wall of the clamping groove. The rotating rod is rotationally matched in the positioning groove.

[0011] Further, a water pipe and a second pressure sensor are further included. The water pipe is arranged along the length direction of the pressing plate. A plurality of water outlets are arranged on the side wall of the water pipe. The pressing surface of the clamping block is connected with the second pressure sensor. The second pressure sensor is connected with the controller. The controller is used to control the opening and closing of the water pipe.

[0012] Further, a rotating chamber is formed by outward protrusion on the upper end side wall of the positioning groove. A protruding part is formed by outward protrusion on the upper end side face of the rotating rod. The outer side face of the protruding part abuts against the inner wall of the rotating chamber. Half of the protruding part is hollow to form a receiving groove. An upper opening is formed on the side wall of the upper end of the receiving groove. A lower opening is formed at the lower end of the receiving groove. A fuel tank is formed by downward depression on the upper end face of the tool holder. The lower end opening of the side wall of the fuel tank communicates with the upper opening of the receiving chamber. A nozzle is connected to the top wall of the clamping groove. The nozzle and the fuel tank are located on opposite sides of the rotating chamber. The input end of the nozzle communicates with the lower opening of the receiving chamber.

[0013] The beneficial effects of the present invention are as follows: When using a high-rigidity wide-guide bench lathe of the present invention to clamp a tool, it can automatically clamp multiple faces of the tool, thereby reducing the possibility of the tool shifting under the action of radial force, ensuring the operation safety to a certain extent. At the same time, pushing the tool between the clamping blocks can clamp the tool, which simplifies the operation steps and saves time to a certain extent.

[0014] Other advantages, objects and features of the present invention will be set forth in part in the following description, and in part will be obvious to those skilled in the art based on the examination of the following, or can be taught from the practice of the present invention. The objects and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the tool rest structure of the present invention; Figure 2 is a top view structural diagram of the tool holder of the present invention; Figure 3 is Figure 2 a structural cross-sectional view taken along A-A in Figure 4 is Figure 2 a structural cross-sectional view taken along B-B in Figure 5 is Figure 4 an enlarged view of C in Figure 6 is a schematic structural diagram of the active clamping portion of the present invention and its corresponding support column.

[0016] In the figure: 1. Tool holder; 11. Clamping groove; 12. Support column; 121. Guide groove; 13. First spring; 14. Oil tank; 15. Sprayer; 2. Clamping block; 21. Active clamping portion; 211. Groove; 212. Sliding base; 213. Rotating rod; 2131. Protrusion; 2132. Accommodating groove; 2133. Upper opening; 2134. Lower opening; 22. Second pressure sensor; 23. Positioning groove; 231. Rotating chamber; 24. Locking groove; 241. Tooth groove; 25. First pole piece; 3. Pressure plate; 31. Water pipe; 4. Driving portion; 41. Screw; 43. Motor; 44. First gear; 45. Second gear; 46. First pressure sensor; 5. Locking portion; 51. Pushing rod; 52. Locking rod; 521. Ratchet tooth; 522. Supporting plate; 53. Second spring; 54. Second pole piece; 6. Tool. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following combines the drawings and preferred embodiments to describe in detail the specific embodiments, structures, features and their effects of the present invention as follows.

[0018] Please refer to Figures 1-6, the present invention provides a technical solution: a high-rigidity wide-rail bench lathe, including an electric chuck, a rail and a tool rest. The electric chuck is used for clamping a workpiece, the rail guides the movement of the tool rest, and the tool rest is used for installing a tool 6. It is characterized in that: the tool rest includes a tool holder 1, clamping blocks 2, a pressing plate 3, a driving part 4, a controller and a locking part 5. There are multiple clamping blocks 2, and the multiple clamping blocks 2 are arranged in pairs and opposite to each other. The multiple pairs of opposite clamping blocks 2 are arranged at intervals in the length direction of the tool holder 1. Each clamping block 2 is slidably connected to the tool holder 1, and each clamping block 2 is elastically connected to the tool holder 1; The pressing plate 3 is located above the multiple clamping blocks 2. The driving part 4 is connected to any one of the multiple clamping blocks 2. This any one clamping block 2 is the active clamping part 21. The active clamping part 21 is electrically connected to the controller, and the driving part 4 is electrically connected to the controller. The driving part 4 is used to drive the pressing plate 3 to move downward when the active clamping plate is pushed by the tool 6. The locking part 5 is used to lock the position of the clamping block 2 when the pressing plate 3 moves downward.

[0019] When using the high-rigidity wide-rail bench lathe of the present invention to clamp the tool 6, first install the tool holder 1 on the tool rest, and then push the tool 6 into the space between the multiple pairs of opposite clamping parts along the direction in which the multiple pairs of opposite clamping parts are arranged. Since each clamping block 2 is slidably connected to the tool holder 1 and each clamping block 2 is elastically connected to the tool holder 1, when pushing the tool 6, the pairs of opposite clamping parts can always hold the side surface of the tool 6. When the active clamping part 21 is pushed by the tool 6 and moves, the controller receives a signal to control the driving part 4 to drive the pressing plate 3 to move downward until the lower side surface of the pressing plate 3 holds the tool 6, and the controller receives a signal again to control the driving part 4 to stop driving the pressing plate 3 to move downward.

[0020] The locking part 5 is used to lock the position of the clamping block 2 when the pressing plate 3 moves downward. Since during the downward movement of the pressing plate 3, the tool 6 has held the position of the clamping block 2 in place, locking the position of the clamping block 2 at this time can, to a certain extent, limit the lateral movement position of the tool 6.

[0021] With this structure, when using the high-rigidity wide-rail bench lathe of the present invention to clamp the tool 6, it can automatically clamp multiple surfaces of the tool 6, thereby reducing the possibility of the tool 6 shifting due to radial force, ensuring the safety of the operation to a certain extent. At the same time, pushing the tool 6 into the space between the clamping blocks 2 can clamp the tool 6, simplifying the operation steps and saving time to a certain extent.

[0022] Specifically, when it is necessary to take out the cutting tool 6, the controller can be used to control the driving part 4 to drive the pressing plate 3 to reset. While the pressing plate 3 moves upward, it contacts and unlocks the clamping block 2, so that the cutting tool 6 can be taken out.

[0023] In this embodiment: The tool holder 1 includes a clamping groove 11, a support column 12 and a first spring 13. The support column 12 is connected to the bottom wall of the clamping groove 11. There are multiple support columns 12. Guide grooves 121 are formed by inward depressions on the sides of the multiple support columns 12. The multiple clamping blocks 2 are respectively and slidably connected to the multiple guide grooves 121. The first spring 13 is arranged in the guide groove 121. The two ends of the first spring 13 are respectively connected to the side wall of the guide groove 121 and the side wall of the clamping block 2. With this structure, the multiple clamping blocks 2 can all be slidably connected to the tool holder 1, and the multiple clamping blocks 2 can all be elastically connected to the tool holder 1.

[0024] In this embodiment: The driving part 4 includes a screw 41, a first gear 44, a first pole piece 25, a motor 43, a second gear 45 and a first pressure sensor 46. The screw 41 is rotatably connected to the clamping groove 11 in the vertical direction. The pressing plate 3 is provided with a screw hole, and the screw 41 is screwed into the screw hole. The upper end of the screw 41 is connected to the first gear 44. The motor 43 is connected to the clamping groove 11, and the output end of the motor 43 is connected to the second gear 45. The second gear 45 meshes with the first gear 44. First pole pieces 25 are connected to the side wall of the active clamping part 21 and the side wall of the corresponding guide groove 121. The two first pole pieces 25 are both electrically connected to the controller. When the two first pole pieces 25 come into contact, the controller can control the motor 43 to rotate. The first pressure sensor 46 is connected to the lower end face of the pressing plate 3, and the first pressure sensor 46 is electrically connected to the controller.

[0025] Before the tool 6 is pushed into between the multiple clamping blocks 2 that are opposite to each other, the side wall of the active clamping portion 21 is not in contact with the first pole piece 25 connected to the side wall of the corresponding guide groove 121, the controller does not control the motor 43 to rotate, and the first gear 44 and the second gear 45 cannot rotate; when the tool 6 is pushed into between the multiple clamping blocks 2 that are opposite to each other, the tool 6 pushes against the clamping block 2 and slides toward the corresponding support column 12, so that the active clamping portion 21 also slides toward the corresponding support column 12, so that the side wall of the active clamping portion 21 It contacts the first pole piece 25 connected to the side wall of the corresponding guide groove 121 and sends an electrical signal to the controller. The controller receives the electrical signal and controls the motor 43 to start rotating. The rotation of the motor 43 drives the second gear 45 to rotate, thereby driving the first gear 44 to rotate. Since the upper end of the screw rod 41 is connected to the first gear 44, the screw rod 41 rotates with the first gear 44, thereby driving the pressure plate 3 to move downward to press the tool 6. With this structure, the driving part 4 can be used to drive the pressure plate 3 to move downward when the active clamping plate is moved by the tool 6.

[0026] When the pressing plate 3 completes pressing the tool 6, if the driving part 4 continues to push the pressing plate 3 to press, the first pressure sensor 46 connected to the pressing plate 3 will send an electrical signal to the controller, and the controller controls the driving part 4 to stop driving the pressing plate 3 to move downward. When the locking part 5 releases the lock of the clamping part, the driving part 4 can drive the pressing plate 3 to move upward again, thereby releasing the pressure on the tool 6.

[0027] In this embodiment: a locking groove 24 is provided on the side of the clamping block 2; the locking portion 5 includes a push rod 51 and a locking rod 52, the push rod 51 can be connected to the support column 12 in an up-and-down sliding manner, the upper end of the push rod 51 is connected to the pressure plate 3, the locking rod 52 can be rotatably connected to the locking groove 24 with the length direction of the locking groove 24 as the rotation center line, the side wall of the locking rod 52 is provided with a ratchet 521, the side of the tooth portion of the ratchet 521 away from the support column 12 is a vertical surface, and the lower side of the locking groove 24 is formed with a tooth groove 241 that matches the ratchet 521; The locking rod 52 is connected to a supporting plate 522 on a side where the ratchet 521 is located, and the supporting plate 522 is located below the pushing rod 51. The locking rod 52 is sleeved with a second spring 53, and the two ends of the second spring 53 are respectively connected to the locking slot 24 and the locking rod 52. The support column 12 corresponding to the active clamping part is formed with a first through hole along the length direction of the locking slot 24, and the other end of the locking rod 52 corresponding to the active clamping part passes through the first through hole and protrudes from the side surface of the support column 12. The locking rod 52 corresponding to the locking part 5 is provided with a second pole piece 54 on the opposite surface of a side of the ratchet 521 and on a side of the first through hole close to the pushing rod 51. The two second pole pieces 54 are both electrically connected to the controller, and the contact between the two second pole pieces 54 can enable the controller to control the motor 43 to rotate.

[0028] When the driving part 4 drives the pressure plate 3 to move downward, the pushing rod 51 moves downward with the pressure plate 3. Since the abutting plate 522 is located below the pushing rod 51, when the pushing rod 51 moves downward, the lower end of the pushing rod 51 abuts against the abutting plate 522 and rotates downward. The second spring 53 is compressed due to the rotation of the abutting plate 522. Since the side of the locking rod 52 corresponding to the active clamping part 21 where the ratchet 521 is located is connected to the abutting plate 522, the ratchet 521 rotates with the abutting plate 522, and because the side surface of the ratchet tooth 521 facing away from the support column 12 is a vertical surface, a tooth groove 241 matching with the ratchet tooth 521 is formed on the lower side of the locking groove 24, and the ratchet tooth 521 rotates to match with the ratchet tooth 521 groove 241, and the ratchet tooth 521 abuts against the clamping block 2, and the clamping block 2 can no longer move toward the support column 12. With this structure, the locking portion 5 can lock the position of the clamping block 2.

[0029] When unlocking is required, by rotating the locking rod 52 corresponding to the active clamping portion 21, the second pole piece 54 on the locking rod 52 can be rotated to the position of the second pole piece 54 corresponding to the first through hole to send an electrical signal to the controller, so that the controller controls the motor 43 to reverse, thereby driving the pressing plate 3 to move upward; the upward movement of the pressing plate 3 drives the push rod 51 to move upward, so that the abutting plate 522 is not abutted by the lower end of the push rod 51, and the second spring 53 can drive the locking rod 52 to reset, releasing the abutment of the ratchet 521 on the clamping block 2. At the same time, since the two second pole pieces 54 are respectively located on the opposite side of the side of the locking rod 52 corresponding to the active clamping portion 21 where the ratchet 521 is provided and the side of the first through hole close to the push rod 51, when the two second pole pieces 54 are in contact, the ratchet 521 has disengaged from the abutment of the tooth groove 241, and the active clamping portion 21 is not abutted by the ratchet 521 and can continue to slide. With this structure, the locking portion 5 can release the clamping of the tool 6.

[0030] In this embodiment: a groove 211 is formed by downward depression on the upper end surface of the active clamping portion 21. A sliding base 212 and a rotating rod 213 are further included. The sliding base 212 is slidably connected in the groove 211. The motor 43 is connected to the upper end surface of the sliding base 212. The rotating rod 213 is arranged vertically. The lower end of the rotating rod 213 is connected to the output end of the motor 43. The pressing plate 3 is formed with a second through hole. The rotating rod 213 passes through the second through hole and is connected to a second gear 45. A positioning groove 23 is formed by inward depression on the top wall of the clamping groove 11. The rotating rod 213 is rotationally fitted in the positioning groove 23.

[0031] Since the rotating rod 213 is rotationally fitted in the positioning groove 23, the sliding base 212 can slide in the groove 211 without restricting the sliding of the clamping block 2, so that the clamping block 2 can be suitable for clamping tools 6 of different sizes.

[0032] In this embodiment: a water pipe 31 and a second pressure sensor 22 are further included. The water pipe 31 is arranged along the length direction of the pressing plate 3. A plurality of water outlets are provided on the side wall of the water pipe 31. The pressing surface of the clamping block 2 is connected to the second pressure sensor 22. The second pressure sensor 22 is connected to the controller. The controller is used to control the opening and closing of the water pipe 31.

[0033] When turning with the cutting tool 6, the radial force generated by the cutting tool 6 abuts against the pressing surface of the clamping block 2, thereby generating a pressure on the second pressure sensor 22, causing the pressure sensor to send an electrical signal to the controller. The controller then controls the switch of the water pipe 31 to allow coolant to flow into the water pipe 31 to cool the cutting part of the cutting tool 6 and the workpiece. Since a plurality of water outlets are provided on the side wall of the water pipe 31, when the coolant flows into the water pipe 31, the coolant will also flow out from the side wall of the water pipe 31 to cool the body of the cutting tool 6, reducing to a certain extent the possibility of the cutting tool 6 deforming due to cutting heat. At the same time, the greater the abutting force of the cutting tool 6 against the workpiece, the greater the pressure on the second pressure sensor 22. The controller can adjust the speed of the coolant flowing into the water pipe 31 through the signal sent by the pressure sensor, enabling the coolant to produce a better cooling effect to a certain extent.

[0034] In this embodiment: an outer convex rotation chamber 231 is formed on the upper side wall of the positioning groove 23, an outer convex protrusion 2131 is formed on the upper side surface of the rotating rod 213, the outer side surface of the protrusion 2131 abuts against the inner wall of the rotation chamber 231, a receiving groove 2132 is formed in half of the outer side of the protrusion 2131, an upper opening 2133 is formed on the upper side wall of the receiving groove 2132, and a lower opening 2134 is formed at the lower end of the receiving groove 2132; A fuel tank 14 is formed by downward depression on the upper end surface of the tool holder 1. The lower end opening of the side wall of the fuel tank 14 communicates with the upper opening 2133 of the receiving chamber. A nozzle 15 is connected to the top wall of the clamping groove 11. The nozzle 15 and the fuel tank 14 are located on opposite sides of the rotation chamber 231. The input end of the nozzle 15 communicates with the lower opening 2134 of the receiving chamber.

[0035] The rotation of the motor 43 drives the rotation of the receiving chamber. When the receiving chamber rotates to the side of the fuel tank 14, the lubricating oil enters the receiving chamber through the lower opening of the fuel tank 14 for storage. When the receiving chamber rotates to the side of the nozzle 15, the lubricating oil in the receiving chamber flows out from the lower opening 2134 into the nozzle 15 and is sprayed out through the nozzle 15 to lubricate the gear structure. With this structure, the operator does not need to frequently lubricate the tool holder 1, reducing the workload of the operator to a certain extent.

[0036] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form an equivalent embodiment with equivalent changes, but as long as it does not depart from the technical content of the present invention, any brief modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A high-rigidity wide-guide bench lathe, comprising an electric chuck, a guide rail and a tool rest. The electric chuck is used for clamping a workpiece, the guide rail guides the movement of the tool rest, and the tool rest is used for mounting a tool, characterized in that: The tool rest includes a tool clip, clamping blocks, a pressing plate, a driving part, a controller and a locking part. There are multiple clamping blocks, and the multiple clamping blocks are arranged in pairs facing each other. The multiple pairs of clamping blocks facing each other are arranged at intervals in the length direction of the tool clip. Each clamping block is slidably connected to the tool clip, and each clamping block is elastically connected to the tool clip; The pressing plate is located above the multiple clamping blocks. The driving part is connected to any one of the multiple clamping blocks, and this any one clamping block is the active clamping part. The active clamping part is electrically connected to the controller, and the driving part is electrically connected to the controller. The driving part is used to drive the pressing plate to move downward when the active clamping plate is pushed by the tool. The locking part is used to lock the position of the clamping block when the pressing plate moves downward.

2. The high-rigidity wide guideway bench lathe according to claim 1, characterized in that: The tool clip includes a clamping groove, support columns and a first spring. The support columns are connected to the bottom wall of the clamping groove. There are multiple support columns, and guide grooves are formed by inward depressions on the sides of the multiple support columns. The multiple clamping blocks are respectively and slidably connected to the multiple guide grooves. The first spring is arranged in the guide groove, and the two ends of the first spring are respectively connected to the side wall of the guide groove and the side wall of the clamping block.

3. The high-rigidity wide-guideway bench lathe according to claim 2, wherein: The driving part includes a screw rod, a first gear, a first pole piece, a motor, a second gear and a first pressure sensor. The screw rod is rotatably connected to the clamping groove in the vertical direction. The pressing plate is provided with a threaded hole, and the screw rod is screwed into the threaded hole. The upper end of the screw rod is connected to the first gear. The motor is connected to the clamping groove, and the output end of the motor is connected to the second gear. The second gear meshes with the first gear. First pole pieces are connected to the side wall of the active clamping part and the side wall of the corresponding guide groove. The two first pole pieces are both electrically connected to the controller. When the two first pole pieces come into contact, the controller can control the motor to rotate. The first pressure sensor is connected to the lower end face of the pressing plate, and the first pressure sensor is electrically connected to the controller.

4. The high-rigidity wide-guideway bench lathe according to claim 3, wherein: A locking groove is provided on the side of the clamping block; the locking part includes a push rod and a locking rod. The push rod is slidably connected to the support column in the up and down direction. The upper end of the push rod is connected to the pressing plate. The locking rod is rotatably connected to the locking groove with the length direction of the locking groove as the rotation center line. Ratchet teeth are provided on the side wall of the locking rod. One side surface of the tooth part of the ratchet teeth facing away from the support column is a vertical surface. A tooth groove matching with the ratchet teeth is formed on the lower side surface of the locking groove; The locking rod is connected with a resisting plate on the side where the ratchet teeth are located. The resisting plate is located below the pushing rod. The locking rod is sleeved with a second spring, and two ends of the second spring are respectively connected with the locking groove and the locking rod. A first through hole is formed in the supporting column corresponding to the active clamping part along the length direction of the locking groove. The other end of the locking rod corresponding to the active clamping part passes through the first through hole and protrudes from the side elevation of the supporting column. Second pole pieces are arranged on the opposite side of the side where the ratchet teeth are arranged on the locking rod corresponding to the locking part and on the side of the first through hole close to the pushing rod. Both of the two second pole pieces are electrically connected with the controller, and the contact of the two second pole pieces can enable the controller to control the rotation of the motor.

5. The high-rigidity wide-guideway bench lathe according to claim 4, wherein: A groove is formed by downward depression on the upper end face of the active clamping part. A sliding base and a rotating rod are further included. The sliding base is slidably connected in the groove. The motor is connected to the upper end face of the sliding base. The rotating rod is arranged vertically, and the lower end of the rotating rod is connected to the output end of the motor. A second through hole is formed in the pressing plate, and the rotating rod passes through the second through hole and is connected with a second gear. A positioning groove is formed by inward depression on the top wall of the clamping groove, and the rotating rod is rotationally matched in the positioning groove.

6. The high-rigidity wide-guideway bench lathe according to claim 5, characterized in that: A water pipe and a second pressure sensor are further included. The water pipe is arranged along the length direction of the pressing plate. A plurality of water outlets are arranged on the side wall of the water pipe. The pressing surface of the clamping block is connected with the second pressure sensor, and the second pressure sensor is connected with the controller. The controller is used for controlling the opening and closing of the water pipe.

7. A high-rigidity wide-guide bench lathe according to claim 5, characterized in that: A rotating chamber protrudes outward from the upper end side wall of the positioning groove. A protruding part protrudes outward from the upper end side face of the rotating rod. The outer side face of the protruding part abuts against the inner wall of the rotating chamber. Half of the protruding part is hollow to form a receiving groove. An upper opening is formed in the side wall of the upper end of the receiving groove, and a lower opening is formed in the lower end of the receiving groove. An oil tank is formed by downward depression on the upper end face of the tool holder. The lower end opening of the side wall of the oil tank communicates with the upper opening of the receiving cavity. A nozzle is connected to the top wall of the clamping groove. The nozzle and the oil tank are located on two opposite sides of the rotating chamber. The input end of the nozzle communicates with the lower opening of the receiving cavity.

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