Positioning device and method for fastener production and machining

Abstract

The invention relates to the technical field of positioning equipment, and provides a positioning device and method for fastener production and processing.The positioning device comprises a fixed base, a placing table is fixedly installed on the upper portion of one side of the fixed base, a baffle is fixedly connected to one side of the placing table, and a feeding plate is fixedly connected to the other side of the placing table; a limiting plate is fixedly connected to one end of the placing table, a notch is formed in the middle of the placing table, the middle of a moving device is clamped in the notch, and a detection plate located below the limiting plate is fixedly installed at one end of the notch. Through the arrangement of the positioning device and the moving device, before batch production of the studs, the rotating disc only needs to be rotated according to the lengths of the studs to be machined, then the multiple studs to be machined are sequentially fed from the feeding plate, and then positioning of the middles of the batch studs can be achieved; and the middle parts of the studs with different lengths can be positioned only by rotating the turntable.

Description

Technical Field

[0001] The present invention relates to the technical field of positioning equipment, and in particular to a positioning device and method for fastener production and processing. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening and connection and are extremely widely used. According to their characteristics, they are usually divided into studs, bolts, nuts, screws, etc. Common forms of connection between them include threaded connection, pin connection, pin connection, etc. They are connected and matched with each other to achieve the fastening of objects. Fasteners are widely used in industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics, etc. They are an indispensable part of various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters and supplies. Among them, studs are used to connect parts with large thickness or need to be frequently disassembled because of their threaded characteristics at both ends.

[0003] The processing of both ends of the stud in the fastener is mainly thread rolling processing, which uses a positioning device for positioning and cooperates with a thread rolling machine to complete the thread opening at both ends of the stud. The conventional method for producing studs is to first roll out the thread at one end, then reverse the stud and roll out the thread at the other end. In this way, not only can the two ends of the stud not be processed at the same time, but also the thread may be damaged if the processed end is fixed, thereby affecting the quality of the product. Therefore, if both ends of the stud are to be processed at the same time, the middle part of the stud needs to be located and clamped, but the existing positioning device cannot accurately find the middle part of the stud to be processed and clamp it, resulting in different thread lengths at both ends of the stud after processing, seriously affecting the processing accuracy of the product. Summary of the invention

[0004] The present invention provides a positioning device and method for fastener production and processing, which solves the problems mentioned in the background technology.

[0005] The technical solution of the present invention is as follows: The cam is provided with a toothed plate, and the toothed plate is provided with a toothed plate at one end, and a toothed plate is provided at the other end of the toothed plate. The positioning device includes a positioning cylinder with one end fixedly connected to the threaded rod, a positioning shaft movably sleeved in the middle of the other end of the positioning cylinder, one end of the positioning shaft fixedly connected to one end of a positioning plate clamped in the positioning cylinder, the other end of the positioning plate and the inner end of the positioning cylinder are respectively fixedly connected to the two ends of a spring, and the middle of the spring is provided with an induction sheet fixedly connected to the inner end of the positioning cylinder.

[0006] Preferably, the spring is always in a compressed state, the length of the positioning shaft outside the positioning cylinder is equal to the distance from the positioning disk to the sensing sheet, and when the positioning disk is connected to the sensing sheet, the motor reverses.

[0007] Preferably, the moving device comprises a rotating plate, the rotating plate is movably sleeved with a rotating shaft, both ends of the rotating shaft are fixedly connected with the moving plate clamped in the slot, and the bottom of the moving plate is fixedly connected with the moving shaft clamped in the threaded slot.

[0008] Preferably, there is a cavity between the limiting plate and the baffle, the feed plate and the placement table, the height of the cavity is smaller than the diameter of the stud to be processed, and the height of the cavity is greater than the length of the moving device.

[0009] Preferably, when the motor 1 is reversed, the movable plate will move in the slot and will contact the detection plate, and when the movable plate contacts the detection plate, the motor 1 will rotate forward.

[0010] Preferably, the movable plate is internally fixedly connected with a limiting axis, one end of the rotating plate is fixedly connected with a clamping block, and one side of the rotating plate is connected to the movable plate through a spring transmission.

[0011] Preferably, a transport plate is provided between the placement table and the positioning platform, one end of a transmission shaft is fixedly sleeved on the middle part of the transport plate, the other end of the transmission shaft is connected to the output end of motor 2 through a gear chain transmission, and four clamping devices arranged equidistantly in a circle are provided on the transport plate.

[0012] Preferably, the second motor is a stepping motor, and whenever the positioning plate contacts the induction plate, the output end of the second motor rotates one circle, and the transmission ratio between the output end of the second motor and the transmission shaft is four to one.

[0013] Preferably, the clamping device includes two clamps, the middle parts of the two clamps are movably sleeved with rivets fixedly connected to the transport plate, one ends of the two clamps are meshed with a gear set, the middle part of the gear set is fixedly sleeved with a rotating shaft with one end movably sleeved with the transport plate, the other end of the rotating shaft is fixedly sleeved with a transmission gear, the transmission gear is meshed with a gear groove plate fixedly connected to the fixed base, an inner gear bar meshing with the transmission gear is arranged at the upper part of the gear groove plate, and an outer gear bar meshing with the transmission gear is arranged at the lower part of the gear groove plate.

[0014] Preferably, a working method of a positioning device for fastener production and processing is also provided, comprising the following steps: S1. Before working, according to the length of the stud to be processed, the turntable can be rotated so that the distance from one end of the positioning cylinder to the clamp is equal to half the length of the stud to be processed, and the stud to be processed is fed in from the feed plate; S2, start the motor to make it rotate forward, so that the rotating column rotates, the moving device will move along the notch, and push the stud close to the positioning device, when the stud to be processed moves, it will push the positioning shaft to move the positioning shaft to the inside of the positioning cylinder, when the positioning shaft just moves to the inside of the positioning cylinder, the clamp is located in the middle of the stud to be processed; S3, the positioning plate contacts the induction plate at the same time, and the output end of the second motor rotates one circle. The second motor starts to rotate the transport plate, and the transmission gear fixedly sleeved at one end of the rotating shaft moves in the gear groove plate. When the middle of the stud to be processed moves into the clamp, the transmission gear will mesh with the outer gear bar, so that the rotating shaft rotates, and then the gear set rotates forward. At this time, the two clamps will move towards each other around the rivet to clamp the stud; S4. Since the transport plate rotates a quarter of a turn each time, the clamp will clamp the middle of the stud to be processed and transport it to the top of the transport plate, at which time the stud to be processed can be processed.

[0015] The working principle and beneficial effects of the present invention are: 1. The arrangement of the positioning device and the moving device in the present invention enables, before batch production of studs, it is only necessary to rotate the turntable according to the length of the studs to be processed so that the distance from one end of the positioning cylinder to the clamp is equal to half the length of the studs to be processed, and then feed a plurality of studs to be processed from the feed plate in sequence, start the motor to make it rotate forward, push the stud to make it close and push the positioning shaft to move the positioning shaft toward the inside of the positioning cylinder, and when the positioning shaft just moves to the inside of the positioning cylinder, one end of the stud and one end of the positioning cylinder are in the same plane at this time, and since the distance from one end of the positioning cylinder to the clamp is equal to half the length of the studs to be processed, the clamp is located in the middle of the studs to be processed at this time, so as to achieve efficient and accurate positioning of the middle of the studs, and since the length of the positioning shaft outside the positioning cylinder is equal to the distance from the positioning disk to the induction sheet, the positioning disk will be connected to the induction sheet at this time, and the motor will be reversed to prepare for positioning the next stud, and such cyclic operation can achieve positioning of batches of studs, and positioning of the middle of screws of different lengths can be achieved by only rotating the turntable.

[0016] 2. The arrangement of the transport disc and the clamping device in the present invention makes it possible for the middle part of the stud to be processed to be located inside the clamping device, and the output end of the motor 2 rotates one circle. Since the transmission ratio between the output end of the motor 2 and the transmission shaft is four to one, the transport disc will rotate a quarter of a circle with the transmission shaft as the axis, and the transmission gear will mesh with the outer gear bar, so that the clamping device clamps the stud. Since the transport disc rotates a quarter of a circle each time, the clamp will clamp the middle part of the stud to be processed and transport it to the top of the transport disc, at which time the stud to be processed can be processed. When the stud is processed, the transport disc continues to rotate, and the transmission gear will mesh with the inner gear bar, so that the clamping device releases the processed stud and prepares to clamp the next stud to be processed. Moreover, since four clamping devices arranged equidistantly in a circle are provided on the transport disc, the transport disc, under the action of the motor 2, will repeat the action to complete the continuous and automatic clamping and transportation of the screw to be processed, thereby significantly improving the processing and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the clamping device in the present invention; Figure 4 It is a schematic diagram of the structure of the mobile device in the present invention; Figure 5 It is a schematic diagram of the internal structure of the mobile device in the present invention; Figure 6It is a schematic diagram of the internal structure of the positioning device in the present invention; Figure 7 It is a schematic diagram of the meshing relationship between the gear groove plate and the transmission gear in the present invention.

[0019] In the figure: 1, fixed base; 2, placing table; 3, baffle; 4, feeding plate; 5, limiting plate; 6, notch; 7, moving device; 71, rotating plate; 72, rotating shaft; 73, moving plate; 74, moving shaft; 75, limiting shaft; 76, block; 8, detection plate; 9, motor 1; 10, rotating column; 11, threaded notch; 12, positioning platform; 13, positioning plate; 14, threaded rod; 15, turntable; 16 , positioning device; 161, positioning cylinder; 162, positioning shaft; 163, positioning plate; 164, spring; 165, induction plate; 17, cavity; 18, transport plate; 19, transmission shaft; 20, motor 2; 21, clamping device; 211, clamp; 212, rivet; 213, gear set; 214, rotating shaft; 215, transmission gear; 22, gear slot plate; 23, inner gear bar; 24, outer gear bar. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 7 As shown, the embodiment of the present invention provides a positioning device for fastener production and processing, including a fixed base 1, a placing table 2 is fixedly installed on the upper side of one side of the fixed base 1, a baffle 3 is fixedly connected to one side of the placing table 2, a feeding plate 4 is fixedly connected to the other side of the placing table 2, a limiting plate 5 is fixedly connected to one end of the placing table 2, a notch 6 is provided in the middle of the placing table 2, the middle part of a moving device 7 is clamped in the notch 6, a detection plate 8 located below the limiting plate 5 is fixedly installed at one end of the notch 6, a motor 9 fixedly connected to the fixed base 1 is provided below the placing table 2, a rotating column 10 is fixedly connected to the output end of the motor 9, a threaded notch 11 is provided on the surface of the rotating column 10 that is clamped to the bottom of the moving device 7, a positioning platform 12 is fixedly connected to the upper side of the other side of the fixed base 1, a positioning plate 13 is fixedly connected to one end of the positioning platform 12, a threaded rod 14 is movably sleeved in the middle of the positioning plate 13, a turntable 15 is fixedly connected to one end of the threaded rod 14, and a positioning device 16 is fixedly connected to the other end of the threaded rod 14; The positioning device 16 includes a positioning cylinder 161 fixedly connected to the threaded rod 14 at one end, a positioning shaft 162 movably sleeved in the middle of the other end of the positioning cylinder 161, one end of the positioning shaft 162 is fixedly connected to one end of a positioning disk 163 clamped in the positioning cylinder 161, the other end of the positioning disk 163 and the inner end of the positioning cylinder 161 are respectively fixedly connected to the two ends of a spring 164, and the middle part of the spring 164 is provided with an induction sheet 165 fixedly connected to the inner end of the positioning cylinder 161. Before working, the spring 164 can be adjusted according to the length of the stud to be processed. Rotate the turntable 15 so that the distance from one end of the positioning cylinder 161 to the clamp 211 is equal to half the length of the stud to be processed, and feed the stud to be processed from the feed plate 4. Under the restriction of the limiting plate 5 and the baffle 3, the lowest stud will be restricted on the placement table 2. Start the motor 9 to make it rotate forward, so that the rotating column 10 rotates. Since the bottom of the moving device 7 is clamped in the threaded groove 11 on the rotating column 10, the moving device 7 will move along the groove 6 and push the stud on the placement table 2 to make it close to the positioning device 16.

[0022] Among them, the spring 164 is always in a compressed state, and the length of the positioning shaft 162 outside the positioning cylinder 161 is equal to the distance from the positioning disk 163 to the sensing plate 165. When the positioning disk 163 is connected to the sensing plate 165, the motor 9 reverses, and when the stud to be processed moves, it will push the positioning shaft 162 to move toward the inside of the positioning cylinder 161. When the positioning shaft 162 just moves to the inside of the positioning cylinder 161, one end of the stud and one end of the positioning cylinder 161 are in the same plane. Since the distance from one end of the positioning cylinder 161 to the clamp 211 is equal to half the length of the stud to be processed, the clamp 211 is located in the middle of the stud to be processed at this time, and since the length of the positioning shaft 162 outside the positioning cylinder 161 is equal to the distance from the positioning disk 163 to the sensing plate 165, the positioning disk 163 will be connected to the sensing plate 165 at this time, causing the motor 9 to reverse.

[0023] Among them, the moving device 7 includes a rotating plate 71, which is movably sleeved with a rotating shaft 72. Both ends of the rotating shaft 72 are fixedly connected to a moving plate 73 that is clamped in the slot 6, and the bottom of the moving plate 73 is fixedly connected to a moving shaft 74 that is clamped in the threaded slot 11. When the motor 9 reverses, the moving device 7 will move away from the positioning device 16. At this time, considering that the next stud to be processed will fall from the feed plate 4 onto the placement table 2 to block the movement of the moving device 7, when the moving device 7 moves away from the positioning device 16 and hits the stud to be processed, the rotating plate 71 in the moving device 7 will rotate around the rotating shaft 72 to the slot 6 and stretch the spring inside the moving device 7. At this time, the moving device 7 can continue to move without being blocked by the stud.

[0024] Among them, there is a cavity 17 between the limiting plate 5 and the baffle plate 3, the feeding plate 4 and the placing table 2. The height of the cavity 17 is less than the diameter of the stud to be processed, and the height of the cavity 17 is greater than the length of the moving device 7. When the motor 9 reverses, the moving plate 73 will move in the slot 6 and will contact the detection plate 8. When the moving plate 73 contacts the detection plate 8, the motor 9 will rotate forward. Since the height of the cavity 17 is less than the diameter of the stud to be processed and greater than the length of the moving device 7, the moving device 7 can move to the inside of the cavity 17, but the stud cannot move to the inside of the cavity 17. When the moving device 7 moves to the inside of the cavity 17, the spring in the moving device 7 will rebound to make the rotating plate 71 rotate out of the slot 6. Thereafter, when the moving device 7 continues to move and contacts the detection plate 8, the motor 9 will rotate forward to prepare to push the next stud to be processed.

[0025] Among them, the movable plate 73 is internally fixedly connected with a limiting shaft 75, one end of the rotating plate 71 is fixedly connected with a clamping block 76, and one side of the rotating plate 71 is connected to the movable plate 73 through a spring transmission. When the motor 19 rotates forward, the movable device 7 will move out of the cavity 17 and hit one end of the stud to be processed. At this time, the rotating plate 71 will rotate around the rotating shaft 72. Since one end of the rotating shaft 72 is fixedly connected with a clamping block 76, during the rotation of the rotating plate 71, the clamping block 76 will hit the limiting shaft 75. At this time, the rotating plate 71 will be stuck by the limiting shaft 75 and will no longer rotate, thereby pushing the stud to move.

[0026] Among them, a transport plate 18 is arranged between the placement table 2 and the positioning platform 12, and one end of the transmission shaft 19 is fixedly sleeved in the middle of the transport plate 18, and the other end of the transmission shaft 19 is connected to the output end of the motor 20 through a gear chain transmission. Four clamping devices 21 arranged in a circumference with equal distances are arranged on the transport plate 18. The motor 20 is a stepping motor. Whenever the positioning plate 163 contacts the induction plate 165, the output end of the motor 20 rotates one circle. The transmission ratio between the output end of the motor 20 and the transmission shaft 19 is four to one. When When the positioning plate 163 contacts the induction plate 165, the clamping device 21 is located in the middle of the stud to be processed, and the output end of the motor 20 rotates one circle. Since the transmission ratio between the output end of the motor 20 and the drive shaft 19 is four to one, the transport plate 18 will rotate a quarter of a circle with the drive shaft 19 as the axis. And since four equidistant circumferentially arranged clamping devices 21 are provided on the transport plate 18, the transport plate 18, under the action of the motor 20, will repeat the action to complete the continuous and automatic positioning, clamping and transportation of the screw.

[0027] Among them, the clamping device 21 includes two clamps 211, the width of the clamps 211 can be adjusted to adapt to the stability of clamping, the middle parts of the two clamps 211 are movably sleeved with rivets 212 fixedly connected to the transport plate 18, one end of the two clamps 211 are meshed with a gear set 213, the middle part of the gear set 213 is fixedly sleeved with a rotating shaft 214 with one end movably sleeved with the transport plate 18, the other end of the rotating shaft 214 is fixedly sleeved with a transmission gear 215, the transmission gear 215 is meshed with a gear groove plate 22 fixedly connected to the fixed base 1, the upper part of the gear groove plate 22 is provided with an inner gear bar 23 that can mesh with the transmission gear 215, and the lower part of the gear groove plate 22 is provided with an outer gear bar 24 that can mesh with the transmission gear 215, the motor 20 is started to rotate the transport plate 18, and the The transmission gear 215 fixedly sleeved at one end of the rotating shaft 214 moves in the gear groove plate 22. When the middle part of the stud to be processed moves into the clamp 211, the transmission gear 215 will mesh with the outer gear bar 24 to rotate the rotating shaft 214, thereby causing the gear set 213 to rotate forward. At this time, the two clamps 211 will move towards each other around the rivet 212 to clamp the stud. Since the transport plate 18 rotates a quarter of a turn each time, the clamp 211 will clamp the middle part of the stud to be processed and transport it to the top of the transport plate 18. At this time, the stud to be processed can be processed. After the stud is processed, the transport plate 18 continues to rotate, and the transmission gear 215 will mesh with the inner gear bar 23 to reverse the gear set 213. At this time, the clamp 211 will release the processed stud and prepare to clamp the next stud to be processed.

[0028] The present application also provides a working method of a positioning device for fastener production and processing, comprising the following steps: S1. Before working, according to the length of the stud to be processed, the turntable 15 can be rotated so that the distance from one end of the positioning cylinder 161 to the clamp 211 is equal to half the length of the stud to be processed, and the stud to be processed is fed from the feed plate 4; S2, start the motor 9 to rotate forward, so that the rotating column 10 rotates, the moving device 7 moves along the notch 6, and pushes the stud close to the positioning device 16, and when the stud to be processed moves, it pushes the positioning shaft 162 to move toward the inside of the positioning cylinder 161. When the positioning shaft 162 just moves to the inside of the positioning cylinder 161, the clamp 211 is located in the middle of the stud to be processed; S3, the positioning plate 163 contacts the induction plate 165 at the same time, and the output end of the motor 20 rotates one circle. The motor 20 starts to rotate the transport plate 18, and the transmission gear 215 fixedly sleeved at one end of the rotating shaft 214 moves in the gear groove plate 22. When the middle of the stud to be processed moves into the clamp 211, the transmission gear 215 will mesh with the outer gear bar 24, so that the rotating shaft 214 rotates, and then the gear set 213 rotates forward. At this time, the two clamps 211 will move towards each other around the rivet 212 to clamp the stud; S4. Since the transport plate 18 rotates a quarter of a turn each time, the clamp 211 will clamp the middle part of the stud to be processed and transport it to the top of the transport plate 18. At this time, the stud to be processed can be processed.

[0029] Working principle: Before working, the turntable 15 can be rotated according to the length of the stud to be processed so that the distance from one end of the positioning cylinder 161 to the clamp 211 is equal to half the length of the stud to be processed, and the stud to be processed is fed from the feed plate 4. Under the restriction of the restriction plate 5 and the baffle plate 3, the lowermost stud will be restricted on the placement table 2, and the motor 9 is started to rotate forward to rotate the rotating column 10. Since the bottom of the moving device 7 is clamped in the threaded notch 11 on the rotating column 10, the moving device 7 will move along the notch 6 and Push the stud on the placement table 2 to make it close to the positioning device 16. When the stud to be processed moves, it will push the positioning shaft 162 to move toward the inside of the positioning tube 161. When the positioning shaft 162 just moves to the inside of the positioning tube 161, one end of the stud and one end of the positioning tube 161 are in the same plane. Since the distance from one end of the positioning tube 161 to the clamp 211 is equal to half the length of the stud to be processed, the clamp 211 is located in the middle of the stud to be processed.

[0030] Since the length of the positioning shaft 162 outside the positioning cylinder 161 is equal to the distance from the positioning disk 163 to the induction sheet 165, the positioning disk 163 will be connected to the induction sheet 165 at this time, so that the motor 19 will be reversed, and the moving device 7 will be away from the positioning device 16. At this time, considering that the next stud to be processed will fall from the feed plate 4 onto the placement table 2 to block the movement of the moving device 7, when the moving device 7 is away from the positioning device 16 and hits the stud to be processed, the rotating plate 71 in the moving device 7 will rotate around the rotating shaft 72 to the notch 6 and stretch the spring inside the moving device 7. At this time, the moving device 7 is not affected by the stud. The moving device 7 continues to move due to the obstruction. When the moving device 7 moves to the inside of the cavity 17, the spring in the moving device 7 will rebound to make the rotating plate 71 rotate out of the slot 6. Thereafter, when the moving device 7 continues to move and contacts the detection plate 8, the motor 9 will rotate forward, and the moving device 7 will move out of the cavity 17 and hit one end of the stud to be processed. At this time, the rotating plate 71 will rotate around the rotating shaft 72. Since a block 76 is fixedly connected to one end of the rotating shaft 72, during the rotation of the rotating plate 71, the block 76 will hit the limiting shaft 75. At this time, the rotating plate 71 will be stuck by the limiting shaft 75 and will no longer rotate, thereby pushing the stud to move.

[0031] When the positioning plate 163 contacts the induction sheet 165, the clamping device 21 is located in the middle of the stud to be processed, and the output end of the motor 20 rotates one circle. Since the transmission ratio between the output end of the motor 20 and the transmission shaft 19 is four to one, the transport plate 18 will rotate a quarter of a circle with the transmission shaft 19 as the axis, and since the transport plate 18 is provided with four equidistant circumferentially arranged clamping devices 21, the transport plate 18, under the action of the motor 20, will repeat the action to complete the continuous and automatic positioning, clamping and transportation of the screw. The motor 20 is started to rotate the transport plate 18, and the transmission gear 215 fixedly sleeved at one end of the rotating shaft 214 moves in the gear groove plate 22. When the stud to be processed When the middle part moves into the clamp 211, the transmission gear 215 will mesh with the outer gear bar 24 to rotate the rotating shaft 214, thereby causing the gear set 213 to rotate forward. At this time, the two clamps 211 will move toward each other around the rivet 212 to clamp the stud. Since the transport plate 18 rotates a quarter of a turn each time, the clamp 211 will clamp the middle part of the stud to be processed and transport it to the top of the transport plate 18. At this time, the stud to be processed can be processed. After the stud is processed, the transport plate 18 continues to rotate, and the transmission gear 215 will mesh with the inner gear bar 23 to reverse the gear set 213. At this time, the clamp 211 will release the processed stud and prepare to clamp the next stud to be processed.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning device for fastener production and processing, characterized in that: The invention comprises a fixed base (1), a placing table (2) is fixedly installed on the upper side of one side of the fixed base (1), a baffle (3) is fixedly connected to one side of the placing table (2), a feeding plate (4) is fixedly connected to the other side of the placing table (2), one end of the placing table (2) is fixedly connected to a limiting plate (5), a notch (6) is provided in the middle of the placing table (2), the middle part of a moving device (7) is clamped in the notch (6), a detection plate (8) located below the limiting plate (5) is fixedly installed at one end of the notch (6), and a device connected to the fixed base (1) is provided below the placing table (2). A motor (9) is fixedly connected, the output end of the motor (9) is fixedly connected to a rotating column (10), the surface of the rotating column (10) is provided with a threaded notch (11) which is engaged with the bottom of the moving device (7), a positioning platform (12) is fixedly connected to the upper side of the other side of the fixed base (1), one end of the positioning platform (12) is fixedly connected to a positioning plate (13), a threaded rod (14) is movably sleeved in the middle of the positioning plate (13), one end of the threaded rod (14) is fixedly connected to a rotating disk (15), and the other end of the threaded rod (14) is fixedly connected to a positioning device (16); The positioning device (16) comprises a positioning cylinder (161) having one end fixedly connected to the threaded rod (14); a positioning shaft (162) is movably sleeved in the middle of the other end of the positioning cylinder (161); one end of the positioning shaft (162) is fixedly connected to one end of a positioning disk (163) clamped in the positioning cylinder (161); the other end of the positioning disk (163) and one end inside the positioning cylinder (161) are respectively fixedly connected to two ends of a spring (164); and a sensing sheet (165) is provided in the middle of the spring (164) and is fixedly connected to one end inside the positioning cylinder (161).

2. A positioning device for fastener production and processing according to claim 1, characterized in that: The spring (164) is always in a compressed state, the length of the positioning shaft (162) outside the positioning cylinder (161) is equal to the distance from the positioning disk (163) to the sensing sheet (165), and when the positioning disk (163) is connected to the sensing sheet (165), the motor 1 (9) rotates in the reverse direction.

3. A positioning device for fastener production and processing according to claim 2, characterized in that: The moving device (7) comprises a rotating plate (71), the rotating plate (71) being movably sleeved with a rotating shaft (72), both ends of the rotating shaft (72) being fixedly connected to a moving plate (73) clamped in the notch (6), and the bottom of the moving plate (73) being fixedly connected to a moving shaft (74) clamped in the threaded notch (11).

4. A positioning device for fastener production and processing according to claim 3, characterized in that: There is a cavity (17) between the limiting plate (5) and the baffle plate (3), the feed plate (4) and the placement table (2); the height of the cavity (17) is less than the diameter of the stud to be processed, and the height of the cavity (17) is greater than the length of the moving device (7).

5. A positioning device for fastener production and processing according to claim 4, characterized in that: When the motor 1 (9) rotates in the reverse direction, the moving plate (73) will move in the slot (6) and will contact the detection plate (8); when the moving plate (73) contacts the detection plate (8), the motor 1 (9) will rotate forward.

6. A positioning device for fastener production and processing according to claim 5, characterized in that: The movable plate (73) is internally fixedly connected to a limit shaft (75), one end of the rotating plate (71) is fixedly connected to a clamping block (76), and one side of the rotating plate (71) is connected to the movable plate (73) via a spring transmission.

7. A positioning device for fastener production and processing according to claim 6, characterized in that: A transport plate (18) is provided between the placement table (2) and the positioning platform (12); one end of a transmission shaft (19) is fixedly sleeved in the middle of the transport plate (18); the other end of the transmission shaft (19) is connected to the output end of a second motor (20) via a gear chain transmission; and four clamping devices (21) are arranged equidistantly in a circumference on the transport plate (18).

8. A positioning device for fastener production and processing according to claim 7, characterized in that: The second motor (20) is a stepping motor. Whenever the positioning plate (163) contacts the induction plate (165), the output end of the second motor (20) rotates one circle. The transmission ratio between the output end of the second motor (20) and the transmission shaft (19) is four to one.

9. A positioning device for fastener production and processing according to claim 8, characterized in that: The clamping device (21) comprises two clamps (211), the middle parts of the two clamps (211) are movably sleeved with rivets (212) fixedly connected to the transport plate (18), one end of the two clamps (211) are meshed with a gear set (213), the middle part of the gear set (213) is fixedly sleeved with a rotating shaft (214) whose end is movably sleeved with the transport plate (18), the other end of the rotating shaft (214) is fixedly sleeved with a transmission gear (215), the transmission gear (215) is meshed with a gear groove plate (22) fixedly connected to the fixed base (1), an inner gear bar (23) meshed with the transmission gear (215) is arranged at the upper part of the gear groove plate (22), and an outer gear bar (24) meshed with the transmission gear (215) is arranged at the lower part of the gear groove plate (22).

10. A working method of a positioning device for fastener production and processing according to any one of claims 1 to 9, characterized in that: The steps include: S1. Before working, the turntable (15) can be rotated according to the length of the stud to be processed so that the distance from one end of the positioning cylinder (161) to the clamp (211) is equal to half the length of the stud to be processed, and the stud to be processed is fed from the feed plate (4); S2, start the motor 1 (9) to rotate forward, so that the rotating column (10) rotates, the moving device (7) moves along the notch (6), and pushes the stud close to the positioning device (16), and when the stud to be processed moves, it pushes the positioning shaft (162) to move the positioning shaft (162) toward the inside of the positioning cylinder (161), when the positioning shaft (162) just moves to the inside of the positioning cylinder (161), the clamp (211) is located in the middle of the stud to be processed; S3, at the same time, the positioning plate (163) contacts the induction plate (165), and the output end of the second motor (20) rotates one circle. The second motor (20) starts to rotate the transport plate (18), and the transmission gear (215) fixedly sleeved at one end of the rotating shaft (214) moves in the gear groove plate (22). When the middle of the stud to be processed moves into the clamp (211), the transmission gear (215) will mesh with the outer gear bar (24), so that the rotating shaft (214) rotates, thereby causing the gear set (213) to rotate forward. At this time, the two clamps (211) will move towards each other around the rivet (212) to clamp the stud; S4. As the transport plate (18) rotates a quarter of a turn each time, the clamp (211) clamps the middle of the stud to be processed and transports it to the top of the transport plate (18), and the stud to be processed can now be processed.

Images