Auxiliary brake mechanism for horizontal numerical control lathe

Abstract

The utility model belongs to horizontal numerical control car technical field, specifically speaked is used for the auxiliary brake mechanism of horizontal numerical control car, including fixed base, the middle part of fixed base is equipped with main shaft, the chuck is installed to main shaft end, the middle part of fixed base and main shaft is equipped with protection assembly, the middle part of protection assembly is installed with two drivers, two drivers are opposite and set up, the output of driver is firmly connected with screw rod, the middle part of screw rod is installed with nut, the middle part of nut is firmly connected with top cylinder, the end of screw rod rotatably connects with limit plate, limit plate is connected in the inner side wall of top cylinder with sliding, the both sides of middle part of fixed base are installed with two hinged seats, can effectively assist the main shaft to stop rotating in short time through above -mentioned structure, reduces the waiting time that produces in the machining process of frequent start -stop, can effectively reduce the torque and impact force that motor bears when braking, accurately control the position of main shaft stop.

Description

Technical Field

[0001] This utility model belongs to the field of horizontal CNC lathe technology, specifically an auxiliary braking mechanism for horizontal CNC lathes. Background Technology

[0002] A horizontal CNC lathe is a type of CNC machine tool used for metal cutting and is widely used in the machinery manufacturing industry.

[0003] A horizontal CNC lathe typically consists of a bed, spindle box, tool post, tailstock, and feed system. The machining process and parameters of the workpiece are input into the CNC system through programming. The system processes and calculates the input information and issues commands to control the movement of various parts of the machine tool, thereby achieving automatic machining of the workpiece. When machining is completed or an emergency stop is required, a mechanical device is usually used to press the brake pads against the brake disc, generating friction to stop the spindle from rotating.

[0004] Traditional horizontal CNC lathes mainly rely on a single braking system to achieve braking action. When a single braking system is applied, the braking force is concentrated on the spindle, which can easily cause an instantaneous reverse torque on the spindle, resulting in a large impact and vibration, and causing a decrease in machining quality.

[0005] Therefore, this utility model provides an auxiliary braking mechanism for horizontal CNC lathes. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The auxiliary braking mechanism for a horizontal CNC lathe of this utility model includes a fixed base; a main shaft is provided in the middle of the fixed base; a chuck is installed at the end of the main shaft; a protective component is provided in the middle of the fixed base and the main shaft; two drivers are installed in the middle of the protective component; the two drivers are arranged opposite to each other; a lead screw is fixedly connected to the output end of the driver; a nut is installed in the middle of the lead screw; a top cylinder is fixedly connected in the middle of the nut; a limit plate is rotatably connected to the end of the lead screw; the limit plate is slidably connected to the inner wall of the top cylinder. Two hinge seats are installed on both sides of the middle of the fixed base; a support rod is fixedly connected to the middle of the hinge seat; a brake block is installed in the middle of the support rod; a disassembly and assembly structure is provided between the support rod and the brake block; a retaining ring is fixedly connected to the middle of the spindle; the above structure can effectively assist the spindle to stop rotating in a short time, reduce the waiting time caused by frequent start and stop machining, effectively reduce the torque and impact force on the motor when braking, accurately control the stop position of the spindle, reduce safety accidents caused by the spindle continuing to rotate when braking, and improve the stability and reliability of the entire CNC lathe system.

[0008] Preferably, the disassembly and assembly structure includes a mounting groove; the mounting groove is formed at the top of the support rod; two slots are formed on the inner side wall of the mounting groove; the two slots are arranged opposite each other; a locking block is installed at the bottom of the slot; the ends of the two locking blocks are fixedly connected to the mounting rod; the brake block is fixedly connected to the top of the middle part of the mounting rod; the above structure enables quick disassembly and replacement of the brake block when it is worn or damaged during use, which can reduce the cost and materials of replacing the entire mechanism, making the replacement process simpler and more convenient, reducing downtime and work efficiency.

[0009] Preferably, the protective assembly has two oil reservoirs installed in the middle; the two oil reservoirs are positioned at corresponding lead screw positions; multiple sets of oil reservoir grooves are formed on the side walls of the oil reservoirs; an oil inlet pipe is fixedly connected to the middle of the oil reservoir; a sponge block is fixedly connected to the side wall of the oil reservoir; the sponge block is fixedly connected to one side of the corresponding oil reservoir groove; the above structure enables the formation of an oil film between the lead screw and the nut, keeping the lead screw and nut smooth during long-term use, reducing the friction coefficient between the lead screw and the nut, thereby reducing wear between the lead screw and the nut and improving the reliability and stability of the auxiliary braking mechanism.

[0010] Preferably, the protective assembly includes a protective cover; the protective cover is installed in the middle of the fixed base; the main shaft passes through the middle of the protective cover; the top of the protective cover has multiple heat dissipation holes; the multiple heat dissipation holes are equidistantly distributed; one end of the oil inlet pipe passes through the top of the protective cover; the above structure can effectively reduce collisions between components, reduce deformation and damage caused by collisions, and the heat dissipation holes can effectively reduce heat dissipation, reduce heat accumulation that could lead to overheating and deformation or damage to the components.

[0011] Preferably, a first filter screen is provided in the middle of the heat dissipation hole; the first filter screen is fixed in the middle of the heat dissipation hole; the above structure can effectively reduce the entry of dust and fine particles in the airflow into the parts inside the protective cover through the heat dissipation hole, thereby reducing dust and impurities inside the protective cover.

[0012] Preferably, a second filter screen is provided in the middle of the oil inlet pipe; the second filter screen is fixed to the inner wall of the oil inlet pipe; the above structure can effectively reduce the accumulation of impurities inside the lubricating oil when passing through multiple sponge blocks, reduce the problem of impurities clogging the middle of the oil storage tank, keep the lubricating oil discharged smoothly, and continuously lubricate the lead screw and nut.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The auxiliary braking mechanism for horizontal CNC lathes described in this utility model can effectively assist the spindle to stop rotating in a short time, reduce the waiting time generated during frequent start-stop machining, effectively reduce the torque and impact force borne by the motor during braking, accurately control the stopping position of the spindle, reduce safety accidents caused by the spindle continuing to rotate during braking, and improve the stability and reliability of the entire CNC lathe system.

[0015] 2. The auxiliary braking mechanism for horizontal CNC lathes described in this utility model enables quick disassembly and replacement of brake pads when they wear or are damaged during use. This reduces the cost and materials required to replace the entire mechanism, making the replacement process simpler and more convenient, and reducing downtime and improving work efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the protective component in this utility model;

[0019] Figure 3 This is a schematic diagram of the brake block structure in this utility model;

[0020] Figure 4 This is an exploded view of the disassembly and assembly structure in this utility model.

[0021] In the diagram: 1. Fixed base; 10. Main spindle; 11. Chuck; 12. Driver; 13. Lead screw; 14. Nut; 15. Top cylinder; 16. Hinge seat; 17. Support rod; 18. Brake block; 19. Snap ring; 100. Limiting plate; 2. Disassembly and assembly structure; 21. Mounting groove; 22. Snap groove; 23. Mounting rod; 24. Snap block; 3. Oil reservoir; 31. Oil reservoir; 32. Oil inlet pipe; 33. Sponge block; 4. Protective components; 41. Protective cover; 42. Heat dissipation hole; 5. First filter screen; 6. Second filter screen. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 4As shown, the auxiliary braking mechanism for a horizontal CNC lathe according to this embodiment includes a fixed base 1; a main spindle 10 is provided in the middle of the fixed base 1; a chuck 11 is installed at the end of the main spindle 10; a protective component 4 is provided in the middle of the fixed base 1 and the main spindle 10; two drivers 12 are installed in the middle of the protective component 4; the two drivers 12 are arranged opposite to each other; a lead screw 13 is fixedly connected to the output end of the driver 12; a nut 14 is installed in the middle of the lead screw 13; a top cylinder 15 is fixedly connected to the middle of the nut 14; a limit plate 100 is rotatably connected to the end of the lead screw 13; the limit plate 100 is slidably connected to the top cylinder 15. The inner wall of cylinder 15; two hinge seats 16 are installed on both sides of the middle of the fixed seat 1; a support rod 17 is fixedly connected to the middle of the hinge seat 16; a brake block 18 is installed in the middle of the support rod 17; a disassembly structure 2 is provided between the support rod 17 and the brake block 18; a retaining ring 19 is fixedly connected to the middle of the spindle 10; during operation, the fixed seat 1 is fixed in the equipment. When the horizontal CNC lathe stops running, the control system controls the braking mechanism to prevent the spindle 10 from rotating. At the same time, the control system transmits a signal to the driver 12 and turns on the driver 12 so that its output end drives the lead screw 13 to rotate. When the lead screw 13 rotates, the position plate 100 limits the top cylinder 15. The nut 14 drives the top cylinder 15 to move towards the support rod 17. The top cylinder 15 pushes the support rod 17, and one end of the support rod 17 rotates in the middle of the hinge seat 16. As the main shaft 10 stops rotating, the brake block 18 installed on one end of the support rod 17 through the disassembly and assembly structure 2 enters the groove in the middle of the corresponding retaining ring 19. The brake block 18 brakes and fixes the main shaft 10. A torsion spring is provided at the connection between the hinge seat 16 and the support rod 17. When the main shaft 10 rotates, the control system controls the driver 12 to output... The output end rotates in the opposite direction, causing the nut 14 to drive the top cylinder 15 to move away from the support rod 17. At this time, the support rod 17, which is no longer under pressure, is reset by the torsion spring, causing the brake block 18 to move out from the middle of the retaining ring 19. The above structure can effectively assist the spindle 10 to stop rotating in a short time, reduce the waiting time generated in the machining process with frequent start and stop, effectively reduce the torque and impact force borne by the motor when braking, accurately control the stopping position of the spindle 10, reduce the safety accidents caused by the spindle 10 continuing to rotate when braking, and improve the stability and reliability of the entire CNC lathe system.

[0024] like Figures 2 to 4As shown, the disassembly and assembly structure 2 includes a mounting groove 21; the mounting groove 21 is located at the top of the support rod 17; two slots 22 are formed on the inner side wall of the mounting groove 21; the two slots 22 are arranged opposite each other; a locking block 24 is installed at the bottom of the slot 22; the ends of the two locking blocks 24 are fixedly connected to the mounting rod 23; the brake block 18 is fixedly connected to the top of the middle part of the mounting rod 23; during operation, when installing the brake block 18 at the top of the support rod 17, first insert the bottom of the mounting rod 23 into the mounting groove 21, insert the two locking blocks 24 into the corresponding positions of the slots 22, and rotate the mounting rod 23. The mounting rod 23 is then pressed downwards, causing the locking block 24 to enter the bottom end along the groove 22. At this time, the mounting rod 23 is fixed to the top of the support rod 17, causing the brake block 18 to rotate and enter the corresponding retaining ring 19. This allows for the periodic and quick disassembly and replacement of the brake block 18. With the above structure, when the brake block 18 is worn or damaged during use, it can be quickly disassembled and replaced with a new brake block 18, which can reduce the cost and materials of replacing the entire mechanism, making the replacement process simpler and more convenient, reducing downtime and work efficiency.

[0025] like Figure 2 and Figure 4 As shown, two oil storage boxes 3 are installed in the middle of the protective component 4; the two oil storage boxes 3 are set at the corresponding positions of the lead screw 13; multiple sets of oil storage grooves 31 are opened on the side wall of the oil storage box 3; an oil inlet pipe 32 is fixedly connected to the middle of the oil storage box 3; a sponge block 33 is fixedly connected to the side wall of the oil storage box 3; the sponge block 33 is fixedly connected to one side of the corresponding oil storage groove 31; during operation, lubricating oil is injected into the oil storage box 3 through the end of the oil inlet pipe 32 for storage, and the lubricating oil is discharged into the sponge block 33 through multiple oil storage grooves 31, so that the sponge block 33 is filled with lubricating oil. When the lead screw 13 rotates, the nut 14 moves towards the sponge block 33. When the position is moved, the end of the top cylinder 15 squeezes the sponge block 33, and the lubricating oil is squeezed out from the inside of the sponge block 33. The lubricating oil enters the gap in the middle of the lead screw 13. When the nut 14 moves, it carries the lubricating oil and evenly adheres to the surface of the lead screw 13. Through the above structure, an oil film can be formed between the lead screw 13 and the nut 14, so that the lead screw 13 and the nut 14 can remain smooth during long-term use, reduce the friction coefficient between the lead screw 13 and the nut 14, thereby reducing the wear problem between the lead screw 13 and the nut 14 and improving the reliability and stability of the auxiliary braking mechanism.

[0026] like Figure 1 and Figure 2As shown, the protective component 4 includes a protective cover 41; the protective cover 41 is installed in the middle of the fixed base 1; the main shaft 10 passes through the middle of the protective cover 41; multiple heat dissipation holes 42 are opened on the top of the protective cover 41; the multiple heat dissipation holes 42 are evenly distributed; one end of the oil inlet pipe 32 passes through the top of the protective cover 41; during operation, the retaining ring 19 and the brake block 18 are protected by the protective cover 41 to prevent other parts or objects from directly colliding with the internal parts of the protective cover 41. At the same time, the multiple heat dissipation holes 42 allow external air to circulate with the airflow inside the protective cover 41. The above structure can effectively reduce the collision between parts, reduce the deformation and damage caused by the collision, and the heat dissipation holes 42 can effectively reduce heat dissipation, reduce heat accumulation that causes the parts to overheat and deform or be damaged.

[0027] like Figure 1 and Figure 2 As shown, a first filter 5 is provided in the middle of the heat dissipation hole 42; the first filter 5 is fixed in the middle of the heat dissipation hole 42; during operation, the airflow intercepts dust and impurities in the airflow through the first filter 5. The above structure can effectively reduce the entry of dust and fine particles in the airflow into the parts inside the protective cover 41 through the heat dissipation hole 42, reduce the accumulation of dust and impurities inside the protective cover 41, reduce corrosion and wear problems, keep the inside of the protective cover 41 clean, and reduce cleaning difficulties.

[0028] like Figure 4 As shown, a second filter screen 6 is provided in the middle of the oil inlet pipe 32; the second filter screen 6 is fixed to the inner wall of the oil inlet pipe 32; during operation, when the lubricating oil is injected into the oil storage box 3 for storage, the impurities inside the lubricating oil are intercepted by the second filter screen 6. The above structure can effectively reduce the accumulation of impurities inside the lubricating oil when passing through multiple sponge blocks 33, reduce the problem of impurities clogging in the middle of the oil storage tank 31, keep the lubricating oil discharged smoothly, and continuously lubricate the lead screw 13 and nut 14.

[0029] like Figure 3 As shown, the brake block 18 is made of an elastic material. During operation, when the brake block 18 enters the middle of the retaining ring 19, if the retaining ring 19 rotates slowly with the main shaft 10, the brake block 18 will bend elastically when it contacts the retaining ring 19, and friction will be generated between the brake block 18 and the retaining ring 19 to stop it. The brake block 18, which is elastically configured as described above, can buffer the impact force generated during instantaneous contact through its own elastic deformation, reduce damage to the brake block 18 and the entire braking mechanism, and extend the service life of each component.

[0030] During operation, the fixed seat 1 is fixed in the equipment. When the horizontal CNC lathe stops running, the control system controls the braking mechanism to prevent the spindle 10 from rotating. At the same time, the control system transmits a signal to the driver 12 and turns on the driver 12 so that its output end drives the lead screw 13 to rotate. The limit plate 100 limits the top cylinder 15 when the lead screw 13 rotates. The nut 14 drives the top cylinder 15 to move towards the support rod 17. The end of the top cylinder 15 pushes the support rod 17, and one end of the support rod 17 rotates in the middle of the hinge seat 16. As the spindle 10 stops rotating, the brake block 18 installed at one end of the support rod 17 through the disassembly and assembly structure 2 enters the middle of the corresponding retaining ring 19. In the groove, the main shaft 10 is braked and fixed by the brake block 18. A torsion spring is provided at the connection between the hinge seat 16 and the support rod 17. When the main shaft 10 rotates, the control system controls the output end of the driver 12 to rotate in the opposite direction, causing the nut 14 to drive the top cylinder 15 to move away from the support rod 17. At this time, the support rod 17, which is no longer under pressure, is reset by the torsion spring, causing the brake block 18 to move out from the middle of the retaining ring 19. When installing the brake block 18 on the top of the support rod 17, first insert the bottom of the mounting rod 23 into the mounting groove 21, and insert the two retaining blocks 24 into the corresponding positions of the retaining grooves 22. Rotate the mounting rod 23 and apply downward pressure, so that the retaining blocks 24 enter the bottom end along the path of the retaining grooves 22. At this time, the mounting rod 23 Fixed to the top of the support rod 17, the brake block 18 rotates and enters the corresponding retaining ring 19, allowing for quick and periodic replacement of the brake block 18. Lubricating oil is injected into the oil reservoir 3 through the end of the oil inlet pipe 32 for storage. The lubricating oil flows through multiple oil reservoirs 31 into the sponge block 33, saturating it. When the screw 13 rotates and the nut 14 moves towards the sponge block 33, the top cylinder 15 presses against the sponge block 33, causing the lubricating oil to flow out and enter the gap in the middle of the screw 13. As the nut 14 moves, it carries the lubricating oil evenly onto the surface of the screw 13. The lubricating oil then flows between the retaining ring 19 and the brake... During use, the brake block 18 is protected by the protective cover 41 to prevent other parts or objects from directly colliding with the internal parts of the protective cover 41. At the same time, multiple heat dissipation holes 42 allow external air to circulate with the airflow inside the protective cover 41. During the airflow, the first filter 5 intercepts dust and impurities in the airflow. When the lubricating oil is injected into the oil reservoir 3 for storage, the second filter 6 intercepts impurities inside the lubricating oil. When the brake block 18 enters the middle of the retaining ring 19, if the retaining ring 19 rotates slowly with the main shaft 10, the brake block 18 will bend elastically when it contacts the retaining ring 19, and friction will be generated between the brake block 18 and the retaining ring 19 to stop it.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary braking mechanism for a horizontal CNC lathe, comprising a fixed base (1); characterized in that: A main shaft (10) is provided in the middle of the fixed base (1); a chuck (11) is installed at the end of the main shaft (10); a protective assembly (4) is provided in the middle of the fixed base (1) and the main shaft (10); two drivers (12) are installed in the middle of the protective assembly (4); the two drivers (12) are arranged opposite each other; a lead screw (13) is fixedly connected to the output end of the driver (12); a nut (14) is installed in the middle of the lead screw (13); a top cylinder (15) is fixedly connected in the middle of the nut (14). The end of the lead screw (13) is rotatably connected to a limiting plate (100); the limiting plate (100) is slidably connected to the inner wall of the top cylinder (15); two hinge seats (16) are installed on both sides of the middle part of the fixed seat (1); a support rod (17) is fixedly connected to the middle part of the hinge seat (16); a brake block (18) is installed in the middle part of the support rod (17); a disassembly and assembly structure (2) is provided between the support rod (17) and the brake block (18); a retaining ring (19) is fixedly connected to the middle part of the main shaft (10).

2. The auxiliary braking mechanism for a horizontal CNC lathe according to claim 1, characterized in that: The disassembly and assembly structure (2) includes an installation groove (21); the installation groove (21) is opened at the top of the support rod (17); two slots (22) are opened on the inner side wall of the installation groove (21); the two slots (22) are arranged opposite to each other; a locking block (24) is installed at the bottom of the slot (22); an installation rod (23) is fixedly connected to the ends of the two locking blocks (24); and the brake block (18) is fixedly connected to the top of the middle part of the installation rod (23).

3. The auxiliary braking mechanism for a horizontal CNC lathe according to claim 1, characterized in that: The protective component (4) has two oil storage boxes (3) installed in the middle; the two oil storage boxes (3) are set at the corresponding screw (13) positions; the side wall of the oil storage box (3) has multiple sets of oil storage grooves (31); the oil storage box (3) is fixedly connected to the middle of the oil storage box (3); the side wall of the oil storage box (3) is fixedly connected to a sponge block (33); the sponge block (33) is fixedly connected to one side of the corresponding oil storage groove (31).

4. The auxiliary braking mechanism for a horizontal CNC lathe according to claim 3, characterized in that: The protective component (4) includes a protective cover (41); the protective cover (41) is installed in the middle of the fixed base (1); the main shaft (10) passes through the middle of the protective cover (41); the top of the protective cover (41) is provided with multiple heat dissipation holes (42); the multiple heat dissipation holes (42) are equidistantly distributed; one end of the oil inlet pipe (32) passes through the top of the protective cover (41).

5. The auxiliary braking mechanism for a horizontal CNC lathe according to claim 4, characterized in that: A first filter screen (5) is provided in the middle of the heat dissipation hole (42); the first filter screen (5) is fixedly connected to the middle of the heat dissipation hole (42).

6. The auxiliary braking mechanism for a horizontal CNC lathe according to claim 3, characterized in that: The oil inlet pipe (32) is provided with a second filter screen (6) in the middle; the second filter screen (6) is fixed to the inner wall of the oil inlet pipe (32).

7. The auxiliary braking mechanism for a horizontal CNC lathe according to claim 1, characterized in that: The brake block (18) is made of an elastic material.

Images