A machine tool transmission screw device

Abstract

The present invention relates to the technical field of screw transmission, and specifically to a machine tool transmission screw device, comprising a screw, a transmission mechanism connected to the screw, a cleaning mechanism installed on the transmission mechanism, a clamping mechanism connected to the transmission mechanism, a reset mechanism installed on the transmission mechanism, a fastening mechanism connected to the transmission mechanism, and a resistance mechanism connected to the screw; the machine tool can move through the cooperation between the transmission mechanism, the screw and the machine tool, the dust and debris attached to the screw can be scraped off through the action of the cleaning mechanism, the cooperation between the clamping mechanism and the reset mechanism can facilitate the removal and installation of the transmission mechanism, and at the same time, it is convenient to replace accessories of different heights as needed, and the operation is more convenient; the transmission mechanism and the bearing are stably and firmly installed through the action of the fastening mechanism, and the disassembly is convenient; and the resistance mechanism can facilitate the installation of the screw stably and firmly, and is not easy to slip and loosen.

Description

Technical Field

[0001] The invention relates to the technical field of screw transmission, in particular to a machine tool transmission screw device. Background Art

[0002] The lead screw is an ideal product for converting rotary motion into linear motion, or linear motion into rotary motion. It is the most commonly used transmission element in tool machinery and precision machinery. Its main function is to convert rotary motion into linear motion, or torque into axial repetitive force. It has the characteristics of high precision, reversibility and high efficiency. In the production process of CNC machine tools, most of the power is transmitted through the lead screw, which improves the precision of the equipment.

[0003] However, when traditional lead screws are used on woodworking machine tools, a large amount of dust and debris will adhere to the lead screw, which is very inconvenient to clean. Over time, it is easy to cause the ball inside the nut to be blocked, so that the nut and the lead screw cannot be threaded and the equipment cannot work. In addition, when the nut seat needs to be replaced, the entire device needs to be disassembled, which is inconvenient, time-consuming and labor-intensive. The bearings and bearing seats are locked during installation, and special tools are required for disassembly, which is very inconvenient. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a machine tool transmission screw device.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a machine tool transmission screw device, including a screw, a transmission mechanism connected to the screw, a cleaning mechanism installed on the transmission mechanism, a locking mechanism connected to the transmission mechanism, a reset mechanism installed on the transmission mechanism, a fastening mechanism connected to the transmission mechanism, and a resistance mechanism connected to the screw.

[0006] Specifically, the transmission mechanism includes a bearing seat, one end of the lead screw is connected to the bearing seat, a nut is threadedly connected to the lead screw, a nut seat is detachably connected to the nut, a connecting block is installed on the nut seat, a plurality of fixing holes are respectively provided on the nut seat and the bearing seat, and anti-slip pads are respectively installed on opposite sides of the nut seat and the connecting block.

[0007] Specifically, the cleaning mechanism includes a connecting plate, connecting plates are respectively connected to both sides of the connecting block, support plates are respectively fixedly connected between the two ends of the two connecting plates, the support plate is an arc-shaped structure, a brush is installed on the support plate, the brush is an arc-shaped structure, and the brush conflicts with the lead screw.

[0008] Specifically, there are respectively provided with slots on both sides of the connecting block, and the slots are of trapezoidal structure. One side of the two connecting plates is slidably connected to the inside of the slots. Bolts are threadedly connected on the two connecting plates, and the bolts extend to the outside of the connecting plates and interfere with the inside of the slots.

[0009] Specifically, the locking mechanism includes a locking pin, and the two ends of the connecting block are slidingly connected to the inner side of the nut seat. The inner sides of the two ends of the nut seat are symmetrically connected with the locking pins. The locking pin is slidingly connected to the inside of the nut seat through a resistance spring. The locking pin is a trapezoidal structure. Two locking grooves are provided on the inner side of the connecting block, and the locking pin is in resistance with the inside of the locking groove.

[0010] Specifically, push rods are installed on the inner sides of both ends of the nut seat respectively. The push rods are of a "T"-shaped structure. The push rods are slidably connected to the inside of the nut seat through a compression spring. One end of the two push rods respectively contacts the two ends of the connecting block.

[0011] Specifically, the reset mechanism includes a driving block, and the two driving pins are respectively fixedly connected to the driving blocks, and the driving blocks are of a triangular structure. Pressure rods are respectively installed inside the two ends of the nut seat, and the pressure rods are slidably connected to the inside of the nut seat through a reset spring. One end of the pressure rod is an arc structure, and one end of the pressure rod is in contact with the driving block. A pressure plate is installed at the other end of the pressure rod, and the pressure plate is slidably connected to the nut seat, and the pressure plate extends to the outside of the nut seat.

[0012] Specifically, the fastening mechanism includes a clamping block, and symmetrical clamping blocks are respectively installed inside the two ends of the bearing seat, one side of the clamping block is an arc-shaped structure, and a push block is installed on the other side of the clamping block, one end of the push block extends to the inside of the fixing hole, the push block is slidably connected to the bearing seat, one end of the push block is an arc-shaped structure, and the other end of the push block is slidably connected to the inside of the clamping block through a plurality of compression springs, and protective pads are respectively installed on the two clamping blocks.

[0013] Specifically, the resistance mechanism includes a top plate, a top plate is installed on the inner side of the other end of the lead screw, the top plate is slidably connected to the inside of the lead screw through a plurality of tension springs, the top plate is a trapezoidal structure, a thread groove is provided at the inner center of the other end of the lead screw, a screw is threadedly connected to the inner part of the thread groove, one end of the screw extends to the bottom of the top plate, and one end of the screw is rotatably connected to a top block, the top block is a circular structure, and the top block resists the top plate.

[0014] The beneficial effects of the present invention are:

[0015] (1) The machine tool transmission screw device described in the present invention is conducive to the mutual movement of the machine tool through the coordinated installation of the transmission mechanism and the screw and the machine tool, so that the machine tool can cooperate with the servo motor to perform transmission work well, that is: the action of the bearing seat is conducive to the rotational connection and installation of the screw and the machine tool through the bearing, and the nut seat and the connecting block are convenient for connecting the nut and installing it with the machine tool, so that the nut drives the nut seat to drive and control the machine tool through the drive of the screw, so that the machine tool can provide the program normally to run, and the anti-skid pad makes the nut engagement stable and not easy to loosen and slip.

[0016] (2) The machine tool transmission screw device described in the present invention is conducive to scraping off dust and debris attached to the screw through the action of the cleaning mechanism, thereby ensuring that the transmission mechanism will not be blocked or stuck and cause damage, that is: the action of the connecting plate is conducive to supporting and installing the support plate, and the action of the support plate is convenient for connecting the brush. Through the contact between the brush and the screw and the movement of the nut seat and the connecting block on the screw, the brush can scrape off dust and debris attached to the screw, which is conducive to preventing dust and debris from entering the nut and causing the internal ball bearing to be stuck. Through the opening of the slot, the connecting plate and the connecting block can be detachably installed, which is conducive to subsequent maintenance and replacement. At the same time, by rotating the bolt, the bolt is in close contact with the inside of the slot, so that the connecting plate is not easy to slide and fall off in the slot, thereby playing a protective role.

[0017] (3) The machine tool transmission screw device described in the present invention facilitates the removal and installation of the transmission mechanism through the cooperation of the locking mechanism and the reset mechanism, and is also convenient for replacing accessories of different heights as needed, making the operation more convenient, that is: through the locking of the connecting block with one side of the nut seat, the connecting block resists the contraction of the locking pin under the action of the resistance spring, thereby facilitating the stable locking of the connecting block and the nut seat. At the same time, the locking pin is engaged with the inside of the lock groove under the action of the resistance spring, which plays a role in limiting the connection block and the nut seat, making the connection between the connecting block and the nut seat stable and convenient for the installation of the nut. The push rod is in conflict with the connecting block under the action of the extrusion spring, so that the connecting block and the bayonet pin are in conflict tightly, so that the connection between the connecting block and the nut seat is stable and not easy to loosen. By pressing the pressure plate, the pressure plate drives the pressure rod to get rid of the conflict with the driving block under the action of the reset spring. Since the driving block is a triangular structure, the driving block is resisted and slides by the pressure rod, and the driving block drives the bayonet pin to get rid of the conflict spring and separate from the inside of the lock groove, thereby facilitating the disassembly of the connecting block and the nut seat. After the external force is removed, the pressure rod is reset, and the driving block has no external force conflict, so that the bayonet pin can move freely, which is convenient for the engagement work of the connecting block.

[0018] (4) The present invention discloses a machine tool transmission screw device, which can stably and firmly install the transmission mechanism and the bearing under the action of the fastening mechanism, and is convenient for disassembly, and can stably and firmly install the screw through the interference mechanism, and is not easy to slip or loosen, that is, after the bearing is inserted into the bearing seat, when the bearing seat is installed, the screw will interfere with the push block after the screw is inserted into the fixing hole, and the push block drives the clamping block to clamp the bearing tightly, and plays a role in protecting and preventing the bearing from slipping under the action of the protective pad. At the same time, under the action of multiple compression springs, the push block and the clamping block have elasticity, which is conducive to the push block to continue to slide, and facilitates the screw to be fully inserted and installed in the fixing hole. After the bearing and the bearing lock are connected to the screw, the screw is turned to the screw rod through the wrench, and the screw rod rotates in the thread groove, which is conducive to the screw rod driving the top block to interfere with the top plate, so that the top plate is freed from the action of the tension spring and slides out of the outside of the screw rod, thereby interfering with the bearing and the bearing lock, so that the bearing and the bearing lock are not easy to loosen and fall off on the screw rod, resulting in reduced machine tool accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a machine tool transmission screw device provided by the present invention;

[0021] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of section A is shown;

[0022] Figure 3 It is a schematic diagram of the connection structure between the nut, the nut seat and the connecting plate of the present invention;

[0023] Figure 4 It is a schematic diagram of the connection structure between the nut seat and the connection block of the present invention;

[0024] Figure 5 for Figure 4 An enlarged schematic diagram of the structure of part B is shown;

[0025] Figure 6 It is a schematic diagram of the connection structure between the bearing seat and the clamping block of the present invention;

[0026] Figure 7 It is a schematic diagram of the connection structure between the screw rod and the top plate of the present invention.

[0027] In the figure: 1. screw; 2. transmission mechanism; 201. bearing seat; 202. nut seat; 203. nut; 204. connecting block; 205. fixing hole; 3. cleaning mechanism; 301. slot; 302. connecting plate; 303. brush; 304. supporting plate; 305. bolt; 4. reset mechanism; 401. pressure plate; 402. pressure rod; 403. reset spring; 404. driving block; 5. locking mechanism; 501. resistance spring; 502. bayonet pin; 503. locking slot; 504. extrusion spring; 505. ejector rod; 506. anti-skid pad; 6. fastening mechanism; 601. push block; 602. compression spring; 603. clamping block; 604. protective pad; 7. resistance mechanism; 701. ejector plate; 702. tension spring; 703. ejector block; 704. screw; 705. threaded groove. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figure 1-Figure 7 As shown, a machine tool transmission screw device described in the present invention includes a screw 1, a transmission mechanism 2 is connected to the screw 1, a cleaning mechanism 3 is installed on the transmission mechanism 2, a locking mechanism 5 is connected to the transmission mechanism 2, a reset mechanism 4 is installed on the transmission mechanism 2, a fastening mechanism 6 is connected to the transmission mechanism 2, and a resistance mechanism 7 is connected to the screw 1.

[0030] Specifically, the transmission mechanism 2 includes a bearing seat 201, one end of the lead screw 1 is connected to the bearing seat 201, a nut 203 is threadedly connected to the lead screw 1, a nut seat 202 is detachably connected to the nut 203, a connecting block 204 is installed on the nut seat 202, a plurality of fixing holes 205 are respectively provided on the nut seat 202 and the bearing seat 201, and anti-slip pads 506 are respectively installed on the opposite sides of the nut seat 202 and the connecting block 204. 1 is conducive to the screw 1 being rotatably connected and installed with the machine tool through the bearing, and the nut 203 is conveniently connected and installed with the machine tool through the action of the nut seat 202 and the connecting block 204, so that the nut 203 drives the nut seat 202 to drive and control the machine tool through the drive of the screw 1, so that the machine tool can provide the program normally to run, and the nut 203 is stably engaged and not easy to loosen and slip under the action of the anti-slip pad 506.

[0031] Specifically, the cleaning mechanism 3 includes a connecting plate 302, and connecting plates 302 are respectively connected to both sides of the connecting block 204, and support plates 304 are respectively fixedly connected between the two ends of the two connecting plates 302, and the support plate 304 is an arc-shaped structure. A brush 303 is installed on the support plate 304, and the brush 303 is an arc-shaped structure. The brush 303 is in conflict with the lead screw 1, and the action of the connecting plate 302 is conducive to supporting and installing the support plate 304, and the action of the support plate 304 is convenient to connect the brush 303, and the conflict between the brush 303 and the lead screw 1, and the movement of the nut seat 202 and the connecting block 204 on the lead screw 1, so that the brush 303 scrapes off the dust and debris attached to the lead screw 1, which is conducive to preventing dust and debris from entering the nut 203 and causing the internal ball bearing to be stuck.

[0032] Specifically, the connecting block 204 is provided with a slot 301 on both sides, and the slot 301 is a trapezoidal structure. One side of the two connecting plates 302 is slidably connected to the inside of the slot 301. Bolts 305 are threadedly connected to the two connecting plates 302. The bolts 305 extend to the outside of the connecting plates 302 and abut against the inside of the slot 301. The opening of the slot 301 facilitates the detachable installation of the connecting plate 302 and the connecting block 204, which is beneficial for subsequent maintenance and replacement. At the same time, by rotating the bolt 305, the bolt 305 is in tight abutment with the inside of the slot 301, so that the connecting plate 302 is not easy to slide and fall off in the slot 301, thereby playing a protective role.

[0033] Specifically, the locking mechanism 5 includes a locking pin 502, and the two ends of the connecting block 204 are slidably connected to the inner side of the nut seat 202. The inner sides of the two ends of the nut seat 202 are symmetrically connected with the locking pins 502. The locking pin 502 is slidably connected to the inside of the nut seat 202 through the conflicting spring 501. The locking pin 502 is a trapezoidal structure. Two locking grooves 503 are provided on the inner side of the connecting block 204. The locking pin 502 conflicts with the inside of the locking groove 503. 2, the engaging of the connecting block 204 on one side makes the connecting block 204 resist the bayonet 502 to get rid of the shrinkage under the action of the resisting spring 501, so as to facilitate the stable engagement of the connecting block 204 with the nut seat 202. At the same time, the bayonet 502 is engaged with the inside of the locking groove 503 under the action of the resisting spring 501, which plays a role in limiting the connecting block 204 and the nut seat 202, so that the connecting block 204 and the nut seat 202 are stably connected, and the installation of the nut 203 is convenient.

[0034] Specifically, push rods 505 are respectively installed on the inner sides of both ends of the nut seat 202, and the push rods 505 are of a "T"-shaped structure. The push rods 505 are slidably connected to the inside of the nut seat 202 through an extrusion spring 504. One end of the two push rods 505 respectively contacts the two ends of the connecting block 204. Under the action of the extrusion spring 504, the push rods 505 contact the connecting block 204, and the connecting block 204 contacts the bayonet 502 tightly, so that the connection between the connecting block 204 and the nut seat 202 is stable and not easy to loosen.

[0035] Specifically, the reset mechanism 4 includes a driving block 404, and the two bayonet pins 502 are respectively fixedly connected with the driving blocks 404, and the driving blocks 404 are of a triangular structure. Pressure rods 402 are respectively installed inside the two ends of the nut seat 202, and the pressure rod 402 is slidably connected with the inside of the nut seat 202 through a reset spring 403. One end of the pressure rod 402 is an arc structure, and one end of the pressure rod 402 contacts the driving block 404. A pressure plate 401 is installed at the other end of the pressure rod 402, and the pressure plate 401 is slidably connected with the nut seat 202. The pressure plate 401 extends to the outside of the nut seat 202, and by pressing the pressure plate 401 The pressure plate 401 drives the pressure rod 402 to break free from the impact of the reset spring 403 on the driving block 404. Since the driving block 404 is a triangular structure, the driving block 404 is impacted and slid by the pressure rod 402. The driving block 404 drives the latch 502 to break free from the impact spring 501 and separate from the inside of the locking groove 503, thereby facilitating the disassembly of the connecting block 204 and the nut seat 202. After the external force is removed, the pressure rod 402 is reset, and the driving block 404 has no external force impact, thereby facilitating the free movement of the latch 502 and facilitating the engagement of the connecting block 204.

[0036] Specifically, the fastening mechanism 6 includes a clamping block 603, and symmetrical clamping blocks 603 are respectively installed inside the two ends of the bearing seat 201. One side of the clamping block 603 is an arc-shaped structure, and a push block 601 is installed on the other side of the clamping block 603. One end of the push block 601 extends to the inside of the fixing hole 205. The push block 601 is slidably connected to the bearing seat 201. One end of the push block 601 is an arc-shaped structure, and the other end of the push block 601 is slidably connected to the inside of the clamping block 603 through a plurality of compression springs 602. Protective pads 604 are respectively installed on the two clamping blocks 603. After the bearing is inserted into the bearing seat 201, when the bearing seat 201 is installed, after the screw is inserted into the fixing hole 205, the screw will resist the push block 601, and the push block 601 drives the clamping block 603 to clamp the bearing tightly, and under the action of the protective pad 604, it plays a role in protecting and preventing the bearing from slipping. At the same time, under the action of multiple compression springs 602, the push block 601 and the clamping block 603 have elasticity, which is conducive to the push block 601 to continue to slide, and it is convenient for the screw to be fully inserted and installed in the fixing hole 205.

[0037] Specifically, the resistance mechanism 7 includes a top plate 701, a top plate 701 is installed on the inner side of the other end of the lead screw 1, the top plate 701 is slidably connected to the inside of the lead screw 1 through a plurality of tension springs 702, the top plate 701 is a trapezoidal structure, a thread groove 705 is provided at the inner center of the other end of the lead screw 1, a screw rod 704 is threadedly connected to the inside of the thread groove 705, one end of the screw rod 704 extends to the bottom of the top plate 701, one end of the screw rod 704 is rotatably connected to a top block 703, the top block 703 is a circular structure, the The top block 703 contacts the top plate 701, and after being connected to the lead screw 1 through the bearing and the bearing lock, it is turned to the screw 704 through a wrench. The screw 704 rotates in the thread groove 705, which is conducive to the screw 704 driving the top block 703 to contact the top plate 701, so that the top plate 701 is freed from the action of the tension spring 702 and slides out of the outside of the lead screw 1, thereby contacting the bearing and the bearing lock, making it difficult for the bearing and the bearing lock to loosen and fall off on the lead screw 1, causing the machine tool accuracy to decrease.

[0038] When the present invention is in use, firstly, the action of the bearing seat 201 facilitates the screw 1 to be rotatably connected and installed with the machine tool through the bearing, and the action of the nut seat 202 and the connecting block 204 facilitates the connection of the nut 203 and the installation with the machine tool, so that the nut 203 drives the nut seat 202 to drive and control the machine tool through the driving of the screw 1, so that the machine tool can provide the program to run normally, and the action of the anti-skid pad 506 makes the nut 203 engage stably and not easy to loosen and slip, and the action of the connecting plate 302 facilitates the support plate 304 to be supported and installed, and the action of the support plate 304 facilitates the connection of the brush 303, and the friction between the brush 303 and the screw 1 is achieved through the nut seat 202 and the connecting block 2 04 moves on the screw 1, so that the brush 303 scrapes off the dust and debris attached to the screw 1, which is beneficial to prevent dust and debris from entering the inside of the nut 203 and causing the internal ball bearing to be stuck. The opening of the slot 301 is beneficial to the detachable installation of the connecting plate 302 and the connecting block 204, which is beneficial to subsequent maintenance and replacement. At the same time, by rotating the bolt 305, the bolt 305 and the inside of the slot 301 are tightly contacted, so that the connecting plate 302 is not easy to slide and fall off in the slot 301, which plays a protective role. Through the engagement of the connecting block 204 with one side of the nut seat 202, the connecting block 204 resists the bayonet pin 502 to get rid of the resistance spring 501 and shrink, thereby facilitating the stable engagement of the connecting block 204 and the nut seat 202. At the same time, the bayonet pin 50 2 is engaged with the inside of the lock groove 503 under the action of the conflicting spring 501, which plays a role in limiting the connection block 204 and the nut seat 202, so that the connection block 204 and the nut seat 202 are stably connected, which is convenient for installing the nut 203. By squeezing the spring 504, the push rod 505 is in conflict with the connection block 204, so that the connection block 204 and the bayonet pin 502 are tightly in conflict, so that the connection between the connection block 204 and the nut seat 202 is stable and not easy to loosen. By pressing the pressing plate 401, the pressing plate 401 drives the pressing rod 402 to get rid of the conflict with the driving block 404 under the action of the reset spring 403. Since the driving block 404 is a triangular structure, the driving block 404 is resisted and slides by the pressing rod 402, and the driving block 404 drives the bayonet pin 502 to get rid of the conflicting spring The spring 501 separates from the inside of the lock groove 503, thereby facilitating the disassembly of the connecting block 204 and the nut seat 202. After the external force is removed, the pressure rod 402 is reset, and the driving block 404 has no external force to resist, thereby facilitating the free movement of the latch pin 502, and facilitating the engagement of the connecting block 204. After the bearing is inserted into the inside of the bearing seat 201, when the bearing seat 201 is installed, after the screw is inserted into the inside of the fixing hole 205, the screw will resist the push block 601, and the push block 601 drives the clamping block 603 to clamp the bearing tightly, and under the action of the protective pad 604, it plays a role in protecting and preventing the bearing from slipping. At the same time, under the action of multiple compression springs 602, the push block 601 and the clamping block 603 have elasticity, which is conducive to the push block 601 to continue to slide.It is convenient to completely insert the screw into the fixing hole 205 for installation. After the screw is connected to the lead screw 1 through the bearing and the bearing lock, the screw 704 is turned by a wrench. The screw 704 rotates in the thread groove 705, which is conducive to the screw 704 driving the top block 703 to contact the top plate 701, so that the top plate 701 is freed from the action of the tension spring 702 and slides out of the lead screw 1, thereby contacting the bearing and the bearing lock, so that the bearing and the bearing lock are not easy to loosen and fall off on the lead screw 1, causing the machine tool accuracy to be reduced.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A machine tool transmission screw device, characterized in that: The invention comprises a lead screw (1), the lead screw (1) is connected to a transmission mechanism (2), the transmission mechanism (2) is provided with a cleaning mechanism (3), the transmission mechanism (2) is connected to a locking mechanism (5), the transmission mechanism (2) is provided with a reset mechanism (4), the transmission mechanism (2) is connected to a fastening mechanism (6), and the lead screw (1) is connected to a resistance mechanism (7); The transmission mechanism (2) comprises a bearing seat (201), one end of the lead screw (1) is connected to the bearing seat (201), a nut (203) is threadedly connected to the lead screw (1), a nut seat (202) is detachably connected to the nut (203), and a connecting block (204) is installed on the nut seat (202); The cleaning mechanism (3) comprises a connecting plate (302), the two sides of the connecting block (204) are respectively connected with connecting plates (302), the two ends of the two connecting plates (302) are respectively fixedly connected with a supporting plate (304), the supporting plate (304) is an arc-shaped structure, a brush (303) is installed on the supporting plate (304), the brush (303) is an arc-shaped structure, and the brush (303) is in conflict with the lead screw (1); The locking mechanism (5) comprises a locking pin (502), the two ends of the connecting block (204) are slidably connected to the inner side of the nut seat (202), the inner sides of the two ends of the nut seat (202) are symmetrically connected with the locking pins (502), the locking pin (502) is slidably connected to the inside of the nut seat (202) through the abutting spring (501), the locking pin (502) is a trapezoidal structure, the inner side of the connecting block (204) is provided with two locking grooves (503), and the locking pin (502) abuts against the inside of the locking grooves (503); Push rods (505) are respectively installed on the inner sides of both ends of the nut seat (202), and the push rods (505) are of a "T"-shaped structure. The push rods (505) are slidably connected to the inside of the nut seat (202) through a compression spring (504), and one end of the two push rods (505) respectively contacts the two ends of the connection block (204); The reset mechanism (4) comprises a driving block (404), the two latches (502) are respectively fixedly connected with the driving blocks (404), the driving blocks (404) are of a triangular structure, and pressure rods (402) are respectively installed inside the two ends of the nut seat (202), the pressure rod (402) is slidably connected with the inside of the nut seat (202) through a reset spring (403), one end of the pressure rod (402) is of an arc structure, and one end of the pressure rod (402) is in contact with the driving block (404); A pressing plate (401) is installed at the other end of the pressing rod (402), and the pressing plate (401) is slidably connected to the nut seat (202), and the pressing plate (401) extends to the outside of the nut seat (202).

2. A machine tool transmission screw device according to claim 1, characterized in that: The nut seat (202) and the bearing seat (201) are respectively provided with a plurality of fixing holes (205), and anti-slip pads (506) are respectively installed on the opposite sides of the nut seat (202) and the connecting block (204).

3. A machine tool transmission screw device according to claim 1, characterized in that: The connection block (204) is provided with a clamping groove (301) on both sides, the clamping groove (301) is a trapezoidal structure, and one side of the two connection plates (302) is slidably connected to the inside of the clamping groove (301).

4. A machine tool transmission screw device according to claim 3, characterized in that: Bolts (305) are threadedly connected to the two connecting plates (302), and the bolts (305) extend to the outside of the connecting plates (302) and abut against the inside of the slots (301).

5. A machine tool transmission screw device according to claim 1, characterized in that: The fastening mechanism (6) comprises a clamping block (603), and symmetrical clamping blocks (603) are respectively installed inside the two ends of the bearing seat (201), one side of the clamping block (603) is an arc-shaped structure, and a push block (601) is installed on the other side of the clamping block (603), one end of the push block (601) extends to the inside of the fixing hole (205), and the push block (601) is slidably connected to the bearing seat (201), one end of the push block (601) is an arc-shaped structure, and the other end of the push block (601) is slidably connected to the inside of the clamping block (603) through a plurality of compression springs (602), and protective pads (604) are respectively installed on the two clamping blocks (603).

6. A machine tool transmission screw device according to claim 1, characterized in that: The abutment mechanism (7) comprises a top plate (701), the top plate (701) being installed on the inner side of the other end of the lead screw (1), the top plate (701) being slidably connected to the inside of the lead screw (1) via a plurality of tension springs (702), the top plate (701) being a trapezoidal structure, a thread groove (705) being provided at the inner center of the other end of the lead screw (1), a screw rod (704) being threadedly connected to the inside of the thread groove (705), one end of the screw rod (704) extending to the bottom of the top plate (701), one end of the screw rod (704) being rotatably connected to a top block (703), the top block (703) being a circular structure, and the top block (703) abutting against the top plate (701).

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