Breaking device for processing raw materials of metal fasteners

Abstract

The invention discloses a metal fastener machining raw material breaking device, and relates to the technical field of intelligent manufacturing. A metal long rod raw material is driven to rotate at a high speed, and a plurality of cutting blades are pushed to gradually go deep into the long rod raw material together by means of a first electric push rod, so that the long rod raw material is cut off; meanwhile, tool aprons are installed on a second sliding rail in a sliding mode, clamping tables are arranged on the left sides and the right sides of the multiple tool aprons respectively, the clamping tables on the two sides are in threaded connection with the two ends of a first screw rod, elastic supporting of multiple springs with the same length is matched, and therefore the tool aprons can be conveniently cut into multiple small rods with the same length; the distance between every two adjacent cutting blades can be flexibly adjusted, equal-length small rods of different sizes can be cut out conveniently according to actual machining requirements, the flexibility of the device in actual use is improved to a certain degree, and the high efficiency of metal long rod raw material cutting machining can be effectively improved under mutual cooperation.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent manufacturing, and particularly relates to a breaking device for raw materials for processing metal fasteners. Background Art

[0002] In the prior art, metal fasteners made of special alloys have a wide range of applications in high-end industries. Such metal fasteners are made of hard materials and can be used for high-strength structural connections. They are widely used in high-tech industries such as machinery manufacturing, wind turbine units, and aerospace.

[0003] During the processing of metal fasteners, it is necessary to break a long rod raw material made of special alloy into many small rods of equal length to form the rod body of the fastener. In the prior art, the breaking process of the long rod raw material is usually achieved by cutting operations. Each small rod needs to be cut once. Since the special alloy is hard, the single cutting efficiency takes a long time. To improve the breaking efficiency of the metal long rod raw material, multiple cutting tools are usually set to work simultaneously to cut the long rod raw material into multiple small rods at one time. To ensure the stability of the cutting and breaking, many cutting tools need to maintain a stable structure, which makes the distance adjustment between many cutting tools not flexible enough and relies on manual adjustment. When performing equal-length breaking processing, when the position of one cutting tool is adjusted, the positions of the remaining cutting tools need to be adjusted synchronously, and the operation is cumbersome. When facing diverse requirements for the dimensions of the rod body of the fastener, this manual adjustment method cannot respond quickly, which is likely to affect the overall production efficiency. Moreover, frequent disassembly and assembly of bolts are likely to cause problems such as thread wear and slipping, affecting the service life and stability of the equipment.

[0004] Therefore, a breaking device for raw materials for processing metal fasteners is proposed to solve some problems existing in the above prior art. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages in the prior art that it is inconvenient to adjust the positions of many cutting tools at equal distances on the breaking device for raw materials for processing metal fasteners, it is difficult to face diverse breaking processing requirements, and it is likely to affect the overall production efficiency, and to propose a breaking device for raw materials for processing metal fasteners.

[0006] To solve the problems existing in the prior art, the present invention adopts the following technical solutions: A cutting device for a metal fastener processing raw material, comprising a machine base, symmetrically arranged support platforms are fixed on the left and right sides of the machine base, a sliding table is installed on the support platform, and an electric chuck is rotatably arranged on one side of the sliding table close to each other. A cutting mechanism is arranged on the back of the machine base, and the cutting mechanism includes a bracket fixed to the machine base. A first slide rail arranged longitudinally is fixed on the bracket, and a second slide rail arranged transversely is fixed on the sliding end of the first slide rail. A plurality of tool holders slide on the second slide rail, and a cutting blade is fixed at the front end of each tool holder. Clamping platforms are arranged on the left and right sides of the plurality of tool holders and slide on the second slide rail. A first screw rod parallel to the second slide rail is rotatably arranged between the left and right ends of the second slide rail, and the first screw rod movably penetrates through the plurality of tool holders. The clamping platforms on the left and right sides are threadedly connected to the first screw rod, and the thread directions on the left and right sides of the first screw rod are opposite. Springs sleeved on the outside of the first screw rod are connected between adjacent two tool holders and between the tool holder and the clamping platform. A first electric push rod arranged longitudinally is fixed on the bracket, and the telescopic end of the first electric push rod is fixedly connected to the second slide rail.

[0007] Preferably, a self-locking mechanism is installed on the bracket, and the self-locking mechanism includes a limiting shaft rotatably installed between the left and right ends of the second slide rail. The limiting shaft is arranged parallel to the second slide rail. A shaft sleeve sleeved on the outside of the limiting shaft is fixed in the tool holder, and an elastic snap ring tightly sleeved on the outside of the limiting shaft is installed in the shaft sleeve. An oil inlet joint and an oil outlet joint are installed on the tool holder, and the oil inlet joint and the oil outlet joint are respectively communicated with the left and right ends inside the shaft sleeve.

[0008] Preferably, an oil passage communicating between the oil inlet joint and the oil outlet joint is opened in the tool holder, and the oil passage is wrapped outside the cutting blade.

[0009] Preferably, an auxiliary support mechanism is fixed on the bracket, and the auxiliary support mechanism includes a connecting rod extending in front of the plurality of cutting blades. A stop post arranged vertically is fixed at the front end of the connecting rod.

[0010] Preferably, a third slide rail parallel to the second slide rail is fixed on the bracket, and a connecting platform corresponding to each of the plurality of tool holders slides on the third slide rail. The number of the connecting rods corresponds to that of the plurality of tool holders one by one. The plurality of connecting rods slide through the plurality of tool holders and are respectively fixedly connected to the corresponding connecting platforms.

[0011] Preferably, a roller is rotatably installed in the stop post, and the roller is at the same height as the electric chuck and is in front of the electric chuck.

[0012] Preferably, the sliding table slides transversely on the support platform, and the left and right sliding tables move relatively synchronously. A step-type bar feeding mechanism arranged longitudinally is fixed in front of the machine base.

[0013] Preferably, a second screw rod horizontally arranged is rotatably mounted between the left and right supporting platforms, and opposite-threaded portions are respectively assembled on the outer sides of the left and right ends of the second screw rod. The left and right sliding platforms are respectively in threaded connection with the left and right ends of the second screw rod.

[0014] Preferably, a transmission shaft is rotatably penetrated through the second screw rod. A first spline cylinder parallel to the transmission shaft is rotatably mounted on the supporting platform. One end of the first spline cylinder close to the sliding platform is slidably inserted with a first spline shaft fixedly connected to the electric chuck. The left and right first spline cylinders are respectively in transmission connection with the left and right ends of the transmission shaft.

[0015] Preferably, a power switching mechanism is arranged on the outer sides of the second screw rod and the transmission shaft. The power switching mechanism includes a second spline shaft rotatably mounted on the left side of the machine base and parallel to the second screw rod. A first gear is fixed to the left end of the second screw rod, and a second gear of the same size as the first gear is fixed to the left end of the transmission shaft. A second spline cylinder is slidably sleeved on the second spline shaft, and a third gear meshing with the second gear is fixed to the second spline cylinder. A shaft seat is slidably mounted on the machine base, and the second spline cylinder is rotatably connected to the shaft seat. A second electric push rod parallel to the second spline shaft is fixed to the machine base, and the telescopic end of the second electric push rod is fixedly connected to the shaft seat.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, the metal long rod raw material is clamped between the left and right electric chucks and rotated at a high speed, and numerous cutting blades are respectively fixed on numerous equally spaced tool holders. By means of the first electric push rod, the numerous cutting blades are pushed together to gradually penetrate into the long rod raw material, realizing the cutting and truncating operation of the long rod raw material, facilitating the one-time segmentation of the long rod raw material into numerous equally long small rods. At the same time, by slidably mounting the tool holders on the second slide rail and respectively arranging clamping platforms on the left and right sides of the numerous tool holders, and by means of the threaded connection between the two side clamping platforms and the two ends of the first screw rod, and in cooperation with the elastic support of numerous equally long springs, the distance between adjacent two cutting blades can be flexibly adjusted, facilitating the segmentation of equally long small rods of different sizes according to actual processing requirements, improving the flexibility of the device during actual use to a certain extent. With mutual cooperation, the high efficiency of the segmentation processing of the metal long rod raw material can be effectively improved; 2. In the present invention, by fixing the bushing in the tool holder and tightly clamping the elastic snap ring arranged in the bushing on the outer side of the limiting shaft, the stable connection of the position of the tool holder can be realized, ensuring the stability during the cutting and segmentation of the cutting blade. At the same time, by connecting the oil inlet joint to one end inside the bushing and cooperating with the oil pump to pressurize and inject the oil liquid, when the device needs to adjust the position of the cutting blade, the elastic snap ring and the limiting shaft are separated, and the position of the tool holder is flexibly adjusted. With mutual cooperation, the device can flexibly adjust the locked and unlocked adjustment states of the tool holder according to requirements, improving the convenience and stability of the device during actual use to a certain extent; 3. In the present invention, by directly connecting the oil passage between the oil inlet joint and the oil outlet joint, and externally connecting the oil outlet joint to the pumping unit, during the cutting and breaking process, through the continuous startup of the oil pump and the pumping unit, the oil can be driven to continuously flow in the oil passage. Through the flow of the oil, the heat generated by the cutting friction inside the cutting blade can be efficiently exported outward, realizing the active heat dissipation operation of the cutting blade during the cutting and breaking process, and effectively ensuring the stability of the cutting blade during continuous cutting for the breaking process of the metal long rod; 4. In the present invention, by setting the slide tables on the left and right sides to be synchronously relatively movable, cooperating with the step-by-step feeding mechanism of the metal long rod raw material to perform step-by-step feeding, and the automatic opening and closing of the electric chuck, the automatic feeding operation of the metal long rod raw material can be realized, achieving intelligent processing and feeding, which can improve the efficiency of the device for breaking the long rod raw material of the metal fastener to a certain extent, and is beneficial to improving the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation to the present invention. In the drawings: Figure 1 is a perspective view of the present invention; Figure 2 is a perspective view of the support table, slide table and electric chuck of the present invention; Figure 3 is a perspective view of the cutting mechanism and the auxiliary support mechanism of the present invention; Figure 4 is of the present invention Figure 3 is an enlarged view of part A in the present invention; Figure 5 is an exploded view of the second screw, transmission shaft and power switching mechanism of the present invention; Figure 6 is a perspective view of the tool holder, cutting blade, connecting rod, stop post and roller of the present invention; Figure 7 is of the present invention Figure 6 is a side cross-sectional view of the structure in the present invention; Figure 8 is of the present invention Figure 6 is an exploded view of the structure in the present invention; Figure 9 is a top view of the present invention; Figure 10 is of the present invention Figure 9 is a cross-sectional view taken along line B-B in the present invention; Figure 11 is of the present invention Figure 2 is an enlarged view of part C in the present invention; Figure 12 is of the present inventionFigure 10 Enlarged view of part D in the figure.

[0018] Reference numerals in the figure: 1. Machine base; 101. Support platform; 102. Slide table; 103. Electric chuck 2. Bracket; 201. First slide rail; 202. Second slide rail; 203. Tool holder; 204. Cutting blade; 205. Clamping table; 206. First screw; 207. Spring; 208. First electric push rod 3. Limit shaft; 301. Bush; 302. Elastic snap ring; 303. Oil inlet joint; 304. Oil outlet joint; 305. Oil passage 4. Connecting rod; 401. Stop post; 402. Third slide rail; 403. Connecting platform; 404. Roller 5. Stepper bar feeding mechanism 6. Second screw 7. Transmission shaft; 701. First spline barrel; 702. First spline shaft 8. Second spline shaft; 801. First gear; 802. Second gear; 803. Second spline barrel; 804. Third gear; 805. Shaft seat; 806. Second electric push rod Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Embodiment: This embodiment provides a cutting device for metal fastener processing raw materials. Refer to Figure 1 - Figure 10, Specifically, it includes a machine base 1. Symmetrically arranged support platforms 101 are fixed on the left and right sides of the machine base 1. A sliding table 102 is installed on the support platform 101. An electric chuck 103 is rotatably arranged on one side of the sliding table 102 close to each other. A cutting mechanism is arranged on the back of the machine base 1. The cutting mechanism includes a bracket 2 fixed to the machine base 1. A longitudinally arranged first slide rail 201 is fixed on the bracket 2. A laterally arranged second slide rail 202 is fixed to the sliding end of the first slide rail 201. A plurality of tool holders 203 slide on the second slide rail 202. A cutting blade 204 is fixed to the front end of each tool holder 203. Clamping platforms 205 are arranged on the left and right sides of the plurality of tool holders 203 and slide on the second slide rail 202. A first screw rod 206 parallel to the second slide rail 202 is rotatably arranged between the left and right ends of the second slide rail 202. The first screw rod 206 movably penetrates through the plurality of tool holders 203. The clamping platforms 205 on the left and right sides are threadedly engaged with the first screw rod 206. The thread directions on the left and right sides of the first screw rod 206 are opposite. Springs 207 sleeved on the outside of the first screw rod 206 are connected between adjacent two tool holders 203 and between the tool holder 203 and the clamping platform 205. A longitudinally arranged first electric push rod 208 is fixed on the bracket 2. The telescopic end of the first electric push rod 208 is fixedly connected to the second slide rail 202.

[0021] When using this device, the staff uses this device to perform a cutting operation on a metal rod material, cutting a long and hard metal rod raw material into a plurality of small rods of equal length, which is convenient for subsequent processing and production of high-strength metal fasteners using the small rods. According to the required length of the small rods to be formed, the distance between adjacent two cutting blades 204 can be flexibly adjusted. A servo motor for driving the first screw rod 206 to rotate is installed at the end position of the second slide rail 202. After the servo motor is powered on and started, it will drive the first screw rod 206 fixedly connected to its drive shaft to rotate. By means of the meshing of the first screw rod 206 and the clamping platform 205, the clamping platforms 205 on the left and right sides are driven to move synchronously relative to each other. Through the synchronous movement of the clamping platforms 205 on the left and right sides, taking the middle position of the second slide rail 202 as the reference, the total length of the distribution of the plurality of tool holders 203 can be flexibly adjusted. Since the plurality of tool holders 203 are evenly distributed between the clamping platforms 205 on the left and right sides under the elastic support of a plurality of equal-length springs 207, by adjusting the distance between the clamping platforms 205 on the left and right sides, the distance between adjacent two tool holders 203 can be adjusted, and further the distance between adjacent two cutting blades 204 can be adjusted.

[0022] In the device, the clamping platform 205 at one end can also be fixedly connected to the second slide rail 202, so that the first screw 206 can be movably inserted into the clamping platform 205, and the clamping platform 205 at the other end remains slidably connected to the second slide rail 202 and is threadedly screwed to the first screw 206. Under such a structure, when adjusting the spacing of the cutting blades 204, only one clamping platform 205 will be controlled to move, and the distance between the two clamping platforms 205 will be adjusted. Although this structure will reduce the efficiency of adjusting the spacing of many cutting blades 204 to a certain extent, it will use one side of the fixed clamping platform 205 as a reference to adjust the equidistant distances of many cutting blades 204. Compared with the structure in which the left and right clamping platforms 205 move relative to each other at the same time for adjustment, it can be suitable for different usage requirements.

[0023] During the cutting process, the long rod material to be processed is clamped between the left and right electric chucks 103. A servo motor is installed on the machine base 1 to drive the electric chucks 103 on the left and right sides to rotate synchronously, thereby driving the long rod material to rotate stably and at high speed. Then, the many first electric push rods 208 arranged behind the bracket 2 are started, and their telescopic ends push the second slide rails 202 to drive the cutting blades 204 fixed at the front ends of the many tool holders 203 to move forward step by step. During the forward movement of the cutting blades 204, they gradually contact the high-speed rotating long rod material. As the many cutting blades 204 gradually penetrate into the long rod material, during the high-speed rotation, the long rod material is turned and cut into many small rods of equal length, thereby realizing deep processing of the metal long rod material. The first electric push rods 208 can be replaced with a screw mechanism as needed.

[0024] During the use of the device, the metal long rod stock is clamped between the left and right electric chucks 103 for high-speed rotation, and a plurality of cutting blades 204 are respectively fixed on a plurality of equidistantly distributed tool seats 203, and the first electric push rod 208 is used to push the plurality of cutting blades 204 together to gradually penetrate into the long rod stock, so as to realize the cutting and cutting operation of the long rod stock, and to facilitate the one-time cutting of the long rod stock into a plurality of equal-length small rods. At the same time, the tool seat 203 is slidably installed on the second slide rail 202, and clamping tables 205 are respectively provided on the left and right sides of the plurality of tool seats 203. By means of the threaded connection between the clamping tables 205 on both sides and the two ends of the first screw rod 206, and the elastic support of a plurality of equal-length springs 207, the distance between two adjacent cutting blades 204 can be flexibly adjusted, and equal-length small rods of different sizes can be cut out according to actual processing requirements, which improves the flexibility of the device in actual use to a certain extent, and can effectively improve the efficiency of the metal long rod stock cutting processing under the cooperation of each other.

[0025] In the specific implementation process, Figure 4 , Figure 6 - Figure 8 and Figure 10As shown, a self-locking mechanism is installed on the bracket 2, and the self-locking mechanism includes a limiting shaft 3 rotatably installed between the left and right ends of the second slide rail 202. The limiting shaft 3 is arranged parallel to the second slide rail 202. A sleeve 301 is fixedly installed in the tool holder 203 and is movably sleeved outside the limiting shaft 3, and an elastic snap ring 302 that tightly fits outside the limiting shaft 3 is installed in the sleeve 301. An oil inlet joint 303 and an oil outlet joint 304 are installed on the tool holder 203, and the oil inlet joint 303 and the oil outlet joint 304 are respectively communicated with the left and right ends inside the sleeve 301. When the device is in use, a plurality of oil inlet joints 303 are externally connected to an oil pump, and a plurality of oil outlet joints 304 are externally connected to an oil extractor. The oil pump can transport oil to the oil inlet joint 303, and the oil extractor can perform oil extraction operations through the oil outlet joint 304. Under normal conditions, the elastic snap ring 302 tightly fits outside the limiting shaft 3, so that the tool holder 203 is stably connected to the limiting shaft 3, avoiding the deviation of the cutting blade 204 during the cutting of the metal long rod, and effectively ensuring the stability of the device during operation.

[0026] When the device needs to adjust the adjacent spacing of a plurality of tool holders 203, the oil pump is started, and oil is injected into one end of the sleeve 301 through the oil inlet joint 303. Oil seal components are arranged at both ends of the sleeve 301 to prevent the oil injected into the sleeve 301 from leaking. Synchronously, the oil extractor is stopped, and the oil outlet joint 304 cannot conduct oil outward. As the oil continuously injects into the sleeve 301 from one end through the oil inlet joint 303, it will push the elastic snap ring 302 to deform, so that the oil fills the contact surface between the elastic snap ring 302 and the limiting shaft 3. In this state, the elastic snap ring 302 no longer fits tightly with the limiting shaft 3, which makes the elastic snap ring 302 release its firm connection with the limiting shaft 3, and the tool holder 203 can move left and right along the limiting shaft 3 for flexible adjustment. The above structural setting enables the device to flexibly adjust the locking and unlocking states of the tool holder 203 according to needs, and can effectively improve the convenience and stability of the device during actual use.

[0027] In the specific implementation process, such as Figure 6 and Figure 7As shown, an oil passage 305 is provided in the tool holder 203 and communicates between the oil inlet joint 303 and the oil outlet joint 304, and the oil passage 305 is wrapped around the outside of the cutting blade 204. When the device is in use, during the process of using a large number of cutting blades 204 to cut and divide the metal long rod raw material, the oil pump and the oil extractor can be started simultaneously. Since the oil passage 305 is directly connected between the oil inlet joint 303 and the oil outlet joint 304, the oil will not enter the bushing 301 to squeeze and support the elastic snap ring 302, but will enter the oil outlet joint 304 through the oil passage 305 and be exported. By continuously starting the oil pump and the oil extractor, the oil is driven to continuously flow in the oil passage 305. Since the oil passage 305 is wrapped around the outside of the cutting blade 204, the heat generated by the cutting friction of the cutting blade 204 will be efficiently exported outward through the flow of the oil, realizing the heat dissipation operation of the cutting blade 204 during the cutting and dividing process, and effectively ensuring the stability of the continuous cutting of the cutting blade 204 for the metal long rod cutting and processing.

[0028] In the specific implementation process, as Figure 4 、 Figure 6 and Figure 8 shown, an auxiliary support mechanism is fixed on the bracket 2, and the auxiliary support mechanism includes a connecting rod 4 extending in front of a large number of cutting blades 204. A vertically arranged stop post 401 is fixed at the front end of the connecting rod 4. A third slide rail 402 is fixed on the bracket 2 and arranged in parallel behind the second slide rail 202, and a connecting table 403 corresponding to each of the tool holders 203 slides on the third slide rail 402. The number of connecting rods 4 corresponds to each of the tool holders 203 one by one. A large number of connecting rods 4 slide through a large number of tool holders 203 and are respectively fixedly connected to the corresponding connecting tables 403. A roller 404 is rotatably installed in the stop post 401, and the roller 404 is at the same height as the electric chuck 103, and the roller 404 is in front of the electric chuck 103.

[0029] When the device is in use, the metal long rod raw material is clamped between the left and right electric chucks 103 and rotates at a high speed. The stop post 401 erected at the front end of the connecting rod 4 stops in front of the metal long rod. The roller 404 rotatably installed in the stop post 401 will roll and abut against the front of the metal long rod. During the process that the cutting blade 204 moves forward from the rear and gradually penetrates into the metal long rod for turning processing, the stop post 401 erected at the front end of the connecting rod 4 can block and support the front of the metal long rod, effectively ensuring the stability of the cutting blade 204 when cutting and dividing the metal long rod. And during the cutting and dividing process, the roller 404 rolls and abuts against the metal long rod, which can avoid direct contact between the high-speed rotating metal long rod and the stop post 401, and effectively ensure the stability of the metal long rod during the high-speed rotation while ensuring the support stability.

[0030] In the case of using the stop post 401 to cooperate with the rollers 404 for rolling support, the device can also provide drive for the rollers 404. A plurality of rollers 404 are arranged on the same straight line. A spline shaft can be slidably inserted into the central axes of the plurality of rollers 404 and connected to a servo motor. During the process of the metal long rod being clamped and rotated at high speed by the electric chuck 103, the servo motor drives the spline shaft to rotate at high speed, driving the plurality of rollers 404 to rotate synchronously. By means of the rolling contact between the rollers 404 and the metal long rod, auxiliary drive can be provided for the rotation of the metal long rod, which is beneficial to further improving the stability during the rotary cutting and breaking of the metal long rod. The internal dimension of the roller 404 is adapted to the external dimension of the spline shaft, so that when the roller 404 slides relative to the spline shaft, the transmission drive will not be affected.

[0031] During the use of the device, a plurality of connecting platforms 403 are slidably mounted on the third slide rail 402. The plurality of connecting platforms 403 are fixedly connected to the plurality of connecting rods 4, and the connecting rods 4 are slidably inserted into the tool holder 203. By means of the sliding connection between the connecting rod 4 and the tool holder 203 in the longitudinal direction, when the tool holder 203 moves horizontally, it will drive the connecting rod 4 to move horizontally synchronously. During the adjustment of the spacing between the cutting blades 204, the auxiliary support mechanism adaptively adjusts synchronously with the corresponding cutting blade 204, always maintaining a state where one cutting blade 204 corresponds to one roller 404, which improves the convenience and flexibility of the device during actual use to a certain extent.

[0032] In the specific implementation process, such as Figure 1 and Figure 5As shown, the slide 102 slides horizontally on the support platform 101, and the left and right slides 102 move synchronously relative to each other. A longitudinally arranged step-type bar conveying mechanism 5 is fixed in front of the machine base 1. A transversely arranged second screw 6 rotates between the left and right support platforms 101, and the left and right ends of the second screw 6 are respectively equipped with threads in opposite directions on the outer sides. The left and right slides 102 are respectively screwed with the left and right ends of the second screw 6. When the device is in use, the rear end of the step-type bar conveying mechanism 5 extends between the left and right electric chucks 103. The left and right slides 102 can move synchronously relative to each other under the drive of the second screw 6. A servo motor for driving the second screw 6 to rotate is installed on the machine base 1. With the help of the two ends of the second screw 6 meshing with the threads of the left and right slides 102, the left and right slides 102 can be driven to move away from each other synchronously, and then The step-by-step bar material conveying mechanism 5 conveys the metal long rod raw material to between the left and right electric chucks 103, and the second screw 6 is driven to rotate in the opposite direction, driving the left and right slides 102 to drive the electric chucks 103 to approach each other, so that the left and right ends of the metal long rod respectively enter the left and right electric chucks 103, and then the electric chucks 103 start to close, and firmly clamp the left and right ends of the metal long rod. Subsequently, the electric chucks 103 are driven to rotate for cutting and breaking processing. The device can realize automatic feeding operation of the metal long rod raw material and intelligent processing and transportation through the relative movement of the left and right slides 102, the step-by-step conveying of the metal long rod raw material by the step-by-step bar material conveying mechanism 5, and the automatic opening and closing of the electric chucks 103, which can improve the efficiency of the device in breaking the metal fastener long rod raw material to a certain extent.

[0033] In the specific implementation process, Figure 5 As shown, a transmission shaft 7 is rotatably passed through the second screw rod 6, a first spline cylinder 701 arranged parallel to the transmission shaft 7 is rotatably disposed on the support platform 101, and a first spline shaft 702 fixedly connected to the electric chuck 103 is slidably inserted into one end of the first spline cylinder 701 close to the slide 102, and the left and right first spline cylinders 701 are respectively transmission-connected to the left and right ends of the transmission shaft 7. When the device is used, the servo motor installed on the machine base 1 is powered on and started to drive the transmission shaft 7 to rotate, and the left and right ends of the transmission shaft 7 are connected to the first spline cylinders 701 on the left and right sides through the sprocket transmission assembly. 1 transmission connection, which allows the left and right first spline cylinders 701 to rotate synchronously, and the first spline shaft 702 is slidably inserted in the first spline cylinder 701, so that when the slide 102 moves left and right for adjustment, it will not affect the transmission of rotational power. Under the transmission connection of the transmission shaft 7, the first spline cylinder 701 and the first spline shaft 702, the electric chucks 103 on the left and right sides are driven to rotate synchronously, and rotational power is applied to the left and right ends of the metal long rod raw material at the same time, and the force driving is more balanced, which can further improve the stability of the metal long rod raw material during cutting and breaking.

[0034] In the specific implementation process, such as Figure 2 and Figure 5 As shown, a power switching mechanism is arranged on the outer sides of the second screw rod 6 and the transmission shaft 7. The power switching mechanism includes a second spline shaft 8 rotatably installed on the left side of the machine base 1 and arranged in parallel with the second screw rod 6. A first gear 801 is fixed to the left end of the second screw rod 6, and a second gear 802 of the same size as the first gear 801 is fixed to the left end of the transmission shaft 7. A second spline cylinder 803 is slidably sleeved on the second spline shaft 8, and a third gear 804 meshing with the second gear 802 is fixed to the second spline cylinder 803. A shaft seat 805 is slidably installed on the machine base 1, and the second spline cylinder 803 is rotatably connected to the shaft seat 805. A second electric push rod 806 arranged in parallel with the second spline shaft 8 is fixed to the machine base 1, and the telescopic end of the second electric push rod 806 is fixedly connected to the shaft seat 805.

[0035] When the device is in use, the power switching mechanism can control the output direction of the servo motor on the machine base 1. When it is necessary to use the servo motor to rotate and drive the second screw rod 6, the second electric push rod 806 is powered on and started to pull the shaft seat 805 to move, so that the third gear 804 meshes with the first gear 801. In this state, after the servo motor is powered on and started, it will drive the second spline shaft 8 to rotate, drive the third gear 804 fixed on the second spline cylinder 803 to rotate, and drive the second screw rod 6 to rotate by means of the meshing of the third gear 804 and the first gear 801, so as to control the relative movement of the sliding tables 102 on the left and right sides. When it is necessary to use the servo motor to rotate and drive the transmission shaft 7, the second electric push rod 806 is powered on and started to drive the third gear 804 to mesh with the second gear 802. In this state, the rotational drive will be transmitted to the transmission shaft 7 to provide rotational power for the electric chucks 103 on the left and right sides. By arranging the power switching mechanism, the rotational drives of the second screw rod 6 and the transmission shaft 7 can share one servo motor, which is beneficial to reducing the manufacturing cost of the device, and further beneficial to reducing the cost during the segmented processing of the metal long rod raw material.

[0036] Specifically, the working principle and operation method of the present invention are as follows: The third gear 804 is controlled to engage with the first gear 801 through the power switching mechanism, driving the second screw rod 6 to rotate. By means of the threaded connection between both ends of the second screw rod 6 and the slide table 102, the two side slide tables 102 are driven to move away from each other synchronously. Then, the metal long rod is conveyed between the electric chucks 103 on the left and right by the step-type bar conveying mechanism 5. The second screw rod 6 is driven to rotate in the reverse direction, driving the slide tables 102 on the left and right to drive the electric chucks 103 to approach each other. The two ends of the metal long rod are inserted into the electric chucks 103 on both sides and clamped and fixed by the electric chucks 103. Then, the third gear 804 is controlled to engage with the second gear 802 through the power switching mechanism, driving the transmission shaft 7 to rotate, and controlling the electric chucks 103 on the left and right to drive the metal long rod raw material to rotate at a high speed. Synchronously, the first electric push rod 208 is powered on and started, pushing the numerous tool holders 203 installed on the second slide rail 202 to drive the cutting blades 204 to move forward, gradually penetrating into the metal long rod rotating at a high speed. Through the cutting of the metal long rod by the numerous cutting blades 204, the metal long rod is efficiently segmented into equal-length small rods. During the cutting and segmentation process, the oil pump and the oil extraction machine are started synchronously, driving the oil to circulate in the oil passage 305, quickly taking away the heat generated by the cutting and segmentation of the cutting blades 204, and improving the stability during cutting and segmentation. When it is necessary to adjust the distance between the cutting blades 204, the oil pump is started and the oil extraction machine is shut down. The oil is pumped into the shaft sleeve 301 through the oil inlet joint 303 and supported from the inside of the elastic snap ring 302, causing the elastic snap ring 302 to separate from the limit shaft 3. Then, the first screw rod 206 is driven to rotate. By means of the threaded engagement between the first screw rod 206 and the clamping tables 205 on both sides, the clamping tables 205 are driven to move, adjusting the distance between the clamping tables 205 on the left and right. With the elastic support of the numerous equal-length springs 207, the tool holders 203 drive the cutting blades 204 to be evenly distributed between the two clamping tables 205 on the left and right, realizing the adjustment of the equal-length distance between the cutting blades 204, which is convenient for processing metal small rods of different lengths.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A cutting device for processing raw materials of metal fasteners, comprising a machine base (1), characterized in that: On the left and right sides of the base (1), symmetrically arranged supporting platforms (101) are fixed, and a sliding table (102) is installed on the supporting platform (101). On the side of the sliding table (102) close to each other, an electric chuck (103) is rotatably arranged. On the back of the base (1), a cutting mechanism is provided, and the cutting mechanism includes a bracket (2) fixed to the base (1). On the bracket (2), a longitudinally arranged first slide rail (201) is fixed, and on the sliding end of the first slide rail (201), a laterally arranged second slide rail (202) is fixed. A plurality of tool holders (203) slide on the second slide rail (202). At the front end of each tool holder (203), a cutting blade (204) is fixed. On the second slide rail (202), clamping platforms (205) are arranged on the left and right sides of the plurality of tool holders (203). Between the left and right ends of the second slide rail (202), a first screw rod (206) parallel to it is rotatably arranged, and the first screw rod (206) movably penetrates through the plurality of tool holders (203). The clamping platforms (205) on the left and right sides are threadedly connected to the first screw rod (206). The thread directions on the left and right sides of the first screw rod (206) are opposite. Between adjacent two tool holders (203), and between the tool holder (203) and the clamping platform (205), springs (207) sleeved on the outside of the first screw rod (206) are connected. On the bracket (2), a longitudinally arranged first electric push rod (208) is fixed, and the telescopic end of the first electric push rod (208) is fixedly connected to the second slide rail (202).

2. The cutting device for the processing raw material of a metal fastener according to claim 1, characterized in that: A self-locking mechanism is installed on the bracket (2), and the self-locking mechanism includes a limiting shaft (3) rotatably installed between the left and right ends of the second slide rail (202). The limiting shaft (3) is arranged parallel to the second slide rail (202). A bushing (301) sleeved on the outside of the limiting shaft (3) is fixed in the tool holder (203), and an elastic snap ring (302) tightly sleeved on the outside of the limiting shaft (3) is installed in the bushing (301). An oil inlet joint (303) and an oil outlet joint (304) are installed on the tool holder (203), and the oil inlet joint (303) and the oil outlet joint (304) are respectively communicated with the left and right ends inside the bushing (301).

3. The cutting device for the processing raw material of a metal fastener according to claim 2, characterized in that: An oil passage (305) communicating between the oil inlet joint (303) and the oil outlet joint (304) is opened in the tool holder (203), and the oil passage (305) is wrapped around the outside of the cutting blade (204).

4. The cutting device for the processing raw material of a metal fastener according to claim 1, wherein: An auxiliary supporting mechanism is fixed on the bracket (2), and the auxiliary supporting mechanism includes a connecting rod (4) extending in front of the plurality of cutting blades (204). At the front end of the connecting rod (4), a vertically arranged stop post (401) is fixed.

5. The cutting device for the processing raw material of a metal fastener according to claim 4, characterized in that: A third slide rail (402) is fixed on the bracket (2) and is arranged in parallel behind the second slide rail (202), and a connecting platform (403) corresponding one-to-one to the plurality of knife seats (203) is slidably disposed on the third slide rail (402). The number of connecting rods (4) corresponds one-to-one to the plurality of knife seats (203). The plurality of connecting rods (4) slide through the plurality of knife seats (203) and are respectively fixedly connected to the corresponding connecting platforms (403).

6. The cutting device for the processing raw material of a metal fastener according to claim 4, characterized in that: A roller (404) is rotatably mounted inside the stop column (401), and the roller (404) and the electric chuck (103) are located at the same height, and the roller (404) is located in front of the electric chuck (103).

7. The breaking device for the processing raw material of a metal fastener according to claim 1, characterized in that: The slide (102) slides transversely on the support platform (101), and the left and right slides (102) move synchronously relative to each other. A longitudinally arranged step-by-step bar material conveying mechanism (5) is fixed in front of the machine base (1).

8. The cutting device for the processing raw material of a metal fastener according to claim 7, characterized in that: A second screw rod (6) is arranged transversely and rotates between the left and right support platforms (101), and the left and right ends of the second screw rod (6) are respectively provided with threads in opposite directions on the outside, and the left and right slide platforms (102) are respectively screwed to the left and right ends of the second screw rod (6).

9. The breaking device for the processing raw material of a metal fastener according to claim 8, characterized in that: A transmission shaft (7) is rotatably passed through the second screw rod (6), a first spline cylinder (701) arranged parallel to the transmission shaft (7) is rotatably disposed on the support platform (101), and a first spline shaft (702) fixedly connected to the electric chuck (103) is slidably inserted into one end of the first spline cylinder (701) close to the slide platform (102), and the left and right first spline cylinders (701) are respectively transmission-connected to the left and right ends of the transmission shaft (7).

10. The cutting device for the processing raw material of a metal fastener according to claim 9, characterized in that: A power switching mechanism is arranged outside the second screw rod (6) and the transmission shaft (7), and the power switching mechanism comprises a second spline shaft (8) rotatably mounted on the left side of the machine base (1) and arranged in parallel with the second screw rod (6); a first gear (801) is fixed to the left end of the second screw rod (6); a second gear (802) of the same size as the first gear (801) is fixed to the left end of the transmission shaft (7); a second spline cylinder (803) is slidably sleeved on the second spline shaft (8), and a third gear (804) meshing with the second gear (802) is fixed on the second spline cylinder (803); a shaft seat (805) is slidably mounted on the machine base (1), and the second spline cylinder (803) is rotatably connected to the shaft seat (805); a second electric push rod (806) arranged in parallel with the second spline shaft (8) is fixed to the machine base (1), and the telescopic end of the second electric push rod (806) is fixedly connected to the shaft seat (805).

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