CN112091538B - Processing technology of spiral spike - Google Patents

Processing technology of spiral spike Download PDF

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Publication number
CN112091538B
CN112091538B CN202010849474.9A CN202010849474A CN112091538B CN 112091538 B CN112091538 B CN 112091538B CN 202010849474 A CN202010849474 A CN 202010849474A CN 112091538 B CN112091538 B CN 112091538B
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spike
driving
thread rolling
raw material
screw
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CN112091538A (en
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吴晴
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Suzhou Sudelan Railway Accessories Co ltd
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Suzhou Sudelan Railway Accessories Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

The application relates to the technical field of railway accessories, in particular to a processing technology of a spiral spike, which adopts the technical scheme that the processing technology comprises the following steps of: cutting the blank according to a set length to form a spike raw material; turning a tip: sharpening one end of the spike raw material to form a conical tip; heating: heating the other end of the spike raw material according to requirements; stamping: stamping one heated end of the spike raw material to form a screw head and a backing plate; trimming: after the spike section bar is cooled, starting a pre-prepared stamping device to remove burrs on the surface of the backing plate; screw heating: starting a heating device prepared in advance to heat one end of the spike raw material provided with the conical tip; rolling the filaments: and starting a pre-prepared thread rolling device to roll threads on the spike raw material obtained by heating the screw rod to form threads so as to obtain the spiral spike. Thereby being convenient for improving the processing quality of products.

Description

Processing technology of spiral spike
Technical Field
The application relates to the technical field of railway accessories, in particular to a processing technology of a spiral spike.
Background
The screw spike is a high-strength bolt used on high-speed railway fasteners, is suitable for V-shaped and WJ 8-type fasteners of elastic strips, and plays a role in fastening the elastic strips and fixing steel rails.
Referring to fig. 1, the related screw spike comprises a screw rod 1 and a screw head 13 which are sequentially arranged, wherein the screw rod 1 and the screw head 13 are integrally formed, threads are arranged on the outer wall of the screw rod 1 along the circumferential direction of the screw rod, and a backing plate 14 is arranged on the outer side wall of the screw rod 1 and at one end close to the screw head 13.
The production and processing processes of the spiral spike need to be carried out through various procedures of cutting, sharpening, heating a screw head, stamping, rolling and the like, and before the thread rolling procedure, the screw rod 1 of the spiral spike needs to be heated so as to enhance the strength and toughness of the spiral spike. The traditional heating mode is as follows: and feeding the screw spikes which are randomly discharged into a heating furnace for heating.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: adopt foretell mode to heat the screw rod 1 of screw spike, cause the screw rod 1 whole to be heated unevenly easily, its heating time and heating degree are difficult to control to influence the processingquality of screw spike.
Disclosure of Invention
In order to improve the processing quality of the spiral spike, the application provides a processing technology of the spiral spike.
The application provides a processing technology of spiral spike, adopts following technical scheme:
a processing technology of a spiral spike comprises the following steps:
cutting: cutting the blank according to a set length to form a spike raw material;
turning a tip: sharpening one end of the spike raw material to form a conical tip;
heating: heating the other end of the spike raw material according to requirements;
stamping: stamping one heated end of the spike raw material to form a screw head and a backing plate;
trimming: after the spike section bar is cooled, starting a pre-prepared stamping device to remove burrs on the surface of the backing plate;
screw heating: starting a heating device prepared in advance to heat one end of the spike raw material provided with the conical tip; the heating equipment comprises a rack, a conveying assembly and a medium-frequency induction heating box, wherein the conveying assembly and the medium-frequency induction heating box are arranged on the rack, a clamping assembly for clamping a spike raw material is arranged on the conveying assembly, an opening for the spike raw material to pass through is formed in the top end of the medium-frequency induction heating box, and an induction heating coil is arranged in the opening;
rolling the filaments: starting a pre-prepared thread rolling device to roll threads on the spike raw material obtained by heating the screw rod to form threads so as to obtain the spiral spike; the thread rolling equipment comprises a thread rolling machine body, a feeding device and a discharging device, wherein at least two thread rolling seats are arranged on the thread rolling machine body, thread rolling shafts are arranged on the thread rolling seats, and the thread rolling shafts are used for rolling threads on spike raw materials.
By adopting the technical scheme, after the steps of cutting, sharpening, heating and stamping, the initial blank forms the spike raw material with the backing plate and the screw head, then burrs on the outer wall of the backing plate can be removed through stamping equipment, and the screw of the spike raw material is heated and rolled to obtain the spiral spike. In-process to the screw rod of the former material of railway spike heats, adopts and is equipped with open-ended intermediate frequency induction heating case, passes through the centre gripping subassembly with the railway spike and fixes on conveyor components to remove under conveyor components's drive effect, the former material of railway spike passes intermediate frequency induction heating case at the in-process that removes, thereby can heat rapidly the screw rod surface of the former material of railway spike, thereby when improving the processingquality of product, be convenient for improve machining efficiency.
Preferably, the method further comprises the following steps:
sleeving a gasket: sleeving a gasket on the screw part of the spiral spike after the step of rolling the thread;
and (3) punching to form burrs: and starting a pressure device prepared in advance to punch the spiral spike sleeved with the gasket to form burrs.
By adopting the technical scheme, the gasket is sleeved on the processed screw spike, and when the screw spike is used, the screw spike is in contact with the track through the gasket, so that the direct contact between the base plate and the track surface is blocked, the probability of the base plate and the screw head cracking caused by the vibration of the track is effectively reduced, the probability of the wear failure of the base plate and the screw head is reduced, and the service life of the screw spike is further prolonged;
the arrangement of the burrs formed by stamping effectively reduces the separation of the gasket from the spiral spike.
Preferably, the conveying assembly comprises a driving wheel, a driven wheel and a conveying belt arranged between the driving wheel and the driven wheel, the driving wheel and the driven wheel are both arranged in the vertical direction in the axial direction, and the conveying belt is arranged annularly;
the clamping assembly comprises a plurality of fixed blocks arranged on the conveyor belt, the top ends of the fixed blocks are provided with mounting grooves, the mounting grooves extend to the side walls, far away from the conveyor belt, of the fixed blocks, the bottom walls of the mounting grooves are provided with positioning grooves, and the positioning grooves extend to the side walls, far away from the conveyor belt, of the fixed blocks;
and a rubber pad is arranged on the inner wall of the positioning groove.
Through adopting above-mentioned technical scheme, when needing to the heating of spiral railway spike, place the screw rod of the former material of railway spike in the constant head tank to make the backing plate of the former material of railway spike offset with the diapire of mounting groove, because be provided with the rubber pad on the inner wall of constant head tank, be convenient for increase the static friction coefficient between former material of railway spike and the constant head tank, thereby can increase the connection stability of the former material of railway spike.
Preferably, a support is arranged on one side of the thread rolling machine body, and the feeding device is arranged on the support;
the feeding device comprises a material rod and a first driving piece for driving the material rod to move along the length direction of the material rod, and the material rod is arranged along the axial direction of the thread rolling shaft; one end of the material rod, which is close to the thread rolling shafts, is provided with a connecting groove for placing spike raw materials, and the connecting groove and the center positions of the thread rolling shafts are positioned on the same straight line.
By adopting the technical scheme, after the spike raw material is heated, a worker uses a tool to take the spike raw material off the fixed block and place the screw head of the spike raw material in the connecting groove, the material rod moves towards the direction close to the thread rolling shaft under the driving action of the first driving piece, when the screw rod of the spike raw material is positioned between the thread rolling shafts, the thread rolling shafts move oppositely and clamp the spike raw material, and thread rolling is carried out on the spike raw material in the rotating process of the thread rolling shafts; the spike raw material is not required to be manually placed on the thread rolling shaft, so that the labor intensity of an operator is greatly reduced, and the work efficiency and the product quality are favorably improved.
Preferably, a support is arranged on one side of the thread rolling machine body, the feeding device is arranged on the support, and a bin for placing the spike raw material heated by the screw rod in the step is arranged on one side of the support;
the feeding device comprises a material plate and a second driving piece for driving the material plate to move along the length direction of the material plate, a U-shaped groove for placing a spike raw material is formed at the top end of the material plate, and the U-shaped groove and the center positions of the plurality of thread rolling shafts are positioned on the same straight line;
the feed bin is provided with a driving assembly used for moving the spike raw materials in the feed bin into the U-shaped groove.
Through adopting above-mentioned technical scheme, when the former material of railway spike removes to U type inslot, the screw rod of the former material of railway spike and the one end setting of keeping away from the spiral shell head are in the U type inslot side. The flitch and the spike raw material placed in the U-shaped groove move towards the direction close to the thread rolling shafts under the driving action of the second driving piece, when the screw of the spike raw material is positioned between the three thread rolling shafts, the three thread rolling shafts move oppositely and clamp the spike raw material tightly, and thread rolling is carried out on the spike raw material in the rotating process of the thread rolling shafts, so that the labor intensity of operators is greatly reduced, and the product quality is improved while the processing efficiency of products is improved.
Preferably, the bin is obliquely arranged, and one end of the bin, which is far away from the bracket, is higher than one end of the bin, which is close to the bracket;
a yielding groove is formed between the bin and the support, and the driving assembly comprises a driving plate which is arranged in the yielding groove in a sliding mode along the vertical direction and a third driving piece which is used for driving the driving plate to move up and down; the top end of the driving plate is obliquely arranged, and one end, far away from the support, of the top of the driving plate is higher than one end, close to the support, of the top of the driving plate;
a guide plate is arranged between the support and the bin, the guide plate is obliquely arranged, and one end, close to the bin, of the guide plate is higher than one end, close to the support, of the guide plate; the one end setting that the deflector is close to the support is in the top of flitch, the one end setting that the deflector is close to the feed bin is in the top of feed bin.
By adopting the technical scheme, in an initial state, the driving plate is flush with the bottom wall of the stock bin, after the spike raw material is placed in the stock bin, the spike raw material slides to the top end of the driving plate, which is arranged at one end of the stock bin close to the bracket, due to the inclined arrangement of the stock bin; the drive plate and the spike raw material arranged on the drive plate move upwards under the driving action of the third driving piece, when the top end of the drive plate is level with the top end of the guide plate, the spike raw material moves to the guide plate and slides downwards to the U-shaped groove, so that the spike raw material is convenient to process, the processing continuity of the spike raw material is ensured, the processing efficiency of a product is improved, and the quality of the product is ensured.
Preferably, the guide plate is provided with a baffle plate and a fourth driving piece for driving the baffle plate to rotate.
Through adopting above-mentioned technical scheme, the setting of baffle plays spacing effect to the spike log lumber to can further improve the processingquality of product.
Preferably, the discharging device comprises a pushing rod arranged among the plurality of thread rolling shafts and a conveying belt arranged on the support and positioned below the feeding device, and a first transmission piece used for driving the pushing rod to move along the length direction of the thread rolling machine body is arranged on the thread rolling machine body;
one end of the conveying belt, which is far away from the thread rolling machine body, is provided with a material receiving assembly.
Through adopting above-mentioned technical scheme, after the former material of nail was accomplished and is rolled the silk and form the spiral spike, the thread rolling axle is back of the body motion, and simultaneously, the catch bar removes and promotes the removal of spiral spike under the drive effect of first transmission piece for on the conveyer belt of spiral spike removal to the below, the spiral spike removed to receiving in the material subassembly under the transport effect of conveyer belt, is convenient for improve the machining efficiency of spiral spike.
Preferably, the stamping equipment comprises a stamping machine body, an upper die arranged on the stamping machine body and a first hydraulic transmission part for driving the upper die to move up and down, wherein a fixing plate is arranged on the stamping machine body and below the upper die, the top end of the fixing plate penetrates through a containing hole, and the diameter of the containing hole is equal to that of the cushion block;
the below of fixed plate is provided with the belt feeder, the output of belt feeder is provided with receives the workbin.
Through adopting above-mentioned technical scheme, the spike raw material that forms spiral shell head and backing plate with the punching press is placed in the accommodation hole, because the diameter of backing plate equals with the diameter of accommodation hole, the spiral shell head passes the accommodation hole, the deckle edge of backing plate outer wall is located the top surface of fixed plate, go up the mould and move down under the drive action of first hydraulic drive spare, make and go up the mould and offset with the one end that the spiral shell head was kept away from to the spike raw material, the deckle edge on the backing plate outer wall is effectively got rid of to the spike raw material is the downstream under the drive action of last mould, thereby can further improve the quality of product.
Preferably, the pressure device comprises a press body, a driving block arranged on the press body and a second hydraulic transmission piece used for driving the driving block to move up and down;
a supporting block is arranged on the press body and below the driving block, a fixed pipe for placing a screw spike is arranged at the top end of the supporting block, and a gap is arranged at the top of the fixed pipe and along one axial end of the fixed pipe;
the bottom of drive block is provided with the fixed slot, be provided with two grip blocks in the fixed slot, be provided with on the drive block and be used for driving two grip blocks and be the second driving medium that sets up in opposite directions or back of the body mutually, two be provided with the butt piece between the grip block, the butt piece is used for offseting with the spiral spike.
Through adopting above-mentioned technical scheme, when the spiral spike that the cover was equipped with the gasket was punched press to needs, in stretching into the fixed tube with spiral spike's screw thread portion, at this moment, the pole portion setting of spiral spike is in breach department. After placing the spiral spike, the drive block drives the butt piece and moves down for the butt piece contacts and forms the burr with the pole portion of spiral spike, and the burr can play spacing effect to the gasket, effectively reduces the probability that the condition that the gasket breaks away from the spiral spike takes place in the transportation.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the intermediate frequency induction heating box with the opening is adopted, and the spike raw material passes through the intermediate frequency induction heating box in the moving process, so that the surface of a screw of the spike raw material can be rapidly heated, and the processing quality of a product is improved conveniently;
2. the gasket is established to spiral spike cover after processing, and during the use, spiral spike passes through gasket and track contact, has blocked backing plate and track face direct contact, effectively reduces because of the track vibrations the probability that leads to the condition emergence that backing plate and spiral shell head burst, has reduced the probability that backing plate and spiral shell head wearing and tearing became invalid, and then has improved the life of spiral spike, and then has improved the quality of product.
Drawings
Fig. 1 is a schematic structural view of a related art shown in the background of the present application;
FIG. 2 is a process flow diagram illustrating a process for manufacturing a screw spike according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a helical spike shown in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of an overall spiral spike processing apparatus according to an embodiment of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a schematic structural diagram of a wire rolling device according to an embodiment of the present disclosure;
FIG. 7 is another schematic structural diagram of a wire rolling device shown in the first embodiment of the present application;
FIG. 8 is a schematic structural diagram of a pressing device according to an embodiment of the present disclosure;
FIG. 9 is another schematic diagram of a pressure device according to an embodiment of the present disclosure;
fig. 10 is an enlarged view of portion B of fig. 9;
FIG. 11 is a schematic structural diagram of a wire rolling device shown in the second embodiment of the present application;
fig. 12 is an enlarged view of a portion C in fig. 11.
Description of reference numerals: 1. a screw; 11. a threaded portion; 12. a rod portion; 13. a screw head; 14. a base plate; 15. a gasket; 16. deburring; 2. a stamping device; 21. a punch body; 22. an upper die; 23. a first hydraulic cylinder; 24. a fixing plate; 25. an accommodation hole; 26. a belt conveyor; 27. a material receiving box; 3. a heating device; 31. a frame; 32. a delivery assembly; 321. a driving wheel; 322. a driven wheel; 323. a conveyor belt; 33. a medium-frequency induction heating box; 331. an opening; 34. a clamping assembly; 341. a fixed block; 342. mounting grooves; 343. positioning a groove; 344. a rubber pad; 4. a wire rolling device; 41. a thread rolling machine body; 42. a thread rolling seat; 43. a thread rolling shaft; 44. a drive motor; 45. a support; 46. a feeding device; 461. a material rod; 462. a first cylinder; 463. connecting grooves; 47. a discharging device; 471. a conveyor belt; 472. a push rod; 473. driving the hydraulic cylinder; 48. a material receiving assembly; 481. a collection box; 482. a striker plate; 5. a pressure device; 51. a press body; 52. a drive block; 53. a second hydraulic cylinder; 54. a support block; 55. a fixed tube; 56. a notch; 57. fixing grooves; 58. a clamping block; 59. a double-ended screw; 6. a butting block; 7. a storage bin; 8. a material plate; 91. a second cylinder; 92. a U-shaped groove; 93. a guide plate; 94. a yielding groove; 95. a drive plate; 96. a third oil cylinder; 97. a baffle plate; 98. and a transmission motor.
Detailed Description
The present application is described in further detail below with reference to figures 1-12.
The embodiment of the application discloses a processing technology of a spiral spike.
The first embodiment is as follows:
referring to fig. 2 and 3, the following steps are included:
cutting: cutting the blank according to a set length to form a spike raw material;
turning a tip: sharpening one end of the spike raw material to form a conical tip;
heating: heating the other end of the spike raw material according to requirements;
stamping: stamping one heated end of the spike stock to form a screw head 13 and a backing plate 14;
trimming: after the spike section bar is cooled, starting a pre-prepared stamping device to remove burrs on the surface of the backing plate 14;
screw heating: starting a pre-prepared heating device to heat one end of the spike raw material, which is provided with the conical tip;
rolling the filaments: and starting a pre-prepared thread rolling device to roll threads on the spike raw material obtained by heating the screw rod 1 to form threads so as to obtain the spiral spike.
Further comprising the steps of:
sleeving a gasket: sleeving a gasket 15 on the screw rod 1 part of the spiral spike completing the thread rolling step;
and (3) punching to form burrs: the prepared pressure device is started to punch the screw spike sleeved with the gasket 15 to form the burr 16.
Referring to fig. 3 and 4, the punching apparatus 2 includes a punch body 21, an upper die 22 provided on the punch body 21, and a first hydraulic transmission member for driving the upper die 22 to move up and down, specifically, the first hydraulic transmission member is provided as a first hydraulic cylinder 23, and a piston rod of the first hydraulic cylinder 23 is connected to the upper die 22. A fixing plate 24 is provided on the press main body 21 below the upper die 22, and a receiving hole 25 is provided through a tip end of the fixing plate 24. The former material of spike that will punch out formation spiral shell head 13 and backing plate 14 is placed in accommodation hole 25, because the diameter of backing plate 14 equals with the diameter of accommodation hole 25, spiral shell head 13 passes accommodation hole 25, the deckle edge of backing plate 14 outer wall is located the top surface of fixed plate 24, start first pneumatic cylinder 23, mould 22 downshifting is gone up in the drive of first pneumatic cylinder 23, make and go up mould 22 and former material of spike and keep away from the one end of spiral shell head 13 and offset, former material of spike downshifts under the driving action of last mould 22, and can get rid of the deckle edge on the backing plate 14 outer wall.
Referring to fig. 4, a belt conveyor 26 is disposed in the press body 21 and below the fixing plate 24, the belt conveyor 26 is disposed along the width direction of the press body 21, and a material receiving box 27 is disposed at an output end of the belt conveyor 26.
Referring to fig. 3 and 4, the spike raw material from which the burrs are removed by punching enters a heating device 3 to heat the screw rod 1 of the spike raw material. The heating apparatus 3 includes a rack 31, a conveying assembly 32 provided on the rack 31, and a medium frequency induction heating cabinet 33 provided on the rack 31. The top of intermediate frequency induction heating case 33 is provided with the opening 331 that supplies the spike former material to pass, is provided with induction heating coil in the opening 331, because the principle of intermediate frequency induction heating case 33 is electromagnetic induction for screw rod 1 who arranges induction coil in produces the vortex, makes screw rod 1 generate heat and heat to required temperature, and its heating is even, and rate of heating is fast.
Referring to fig. 3 and 4, the conveying assembly 32 includes a driving wheel 321, a driven wheel 322, and a conveying belt 323 sleeved on outer walls of the driving wheel 321 and the driven wheel 322, a servo motor for driving the driving wheel 321 to rotate is provided in the frame 31, the driving wheel 321 and the driven wheel 322 are both arranged in the axial direction, and the conveying belt 323 is arranged annularly.
Referring to fig. 4 and 5, evenly be provided with a plurality of clamping component 34 along its circumference on the outer wall of conveyer belt 323, specifically, clamping component 34 is including setting up fixed block 341 on conveyer belt 323, and the top of fixed block 341 is provided with mounting groove 342, and on mounting groove 342 extended to fixed block 341 kept away from the lateral wall of conveyer belt 323, run through on the diapire of mounting groove 342 and be provided with constant head tank 343, constant head tank 343 extended to fixed block 341 keep away from on the lateral wall of conveyer belt 323, and be provided with rubber pad 344 on the inner wall of constant head tank 343.
Referring to fig. 4 and 5, when screw rod 1 to the former material of railway spike needs to be heated, the staff will receive the former material of railway spike in workbin 27 and place in mounting groove 342 and constant head tank 343, make screw rod 1 of the former material of railway spike place in constant head tank 343, and make the backing plate 14 of the former material of railway spike offset with the diapire of mounting groove 342, because be provided with rubber pad 344 on the inner wall of constant head tank 343, be convenient for increase the static friction coefficient between former material of railway spike and the constant head tank 343, thereby can increase the connection stability of the former material of railway spike.
Referring to fig. 4 and 5, the conveyor belt 323 passes through the intermediate frequency induction heating box 33 during rotation, so that the intermediate frequency induction heating box 33 heats the screw 1 of the spike stock to a set temperature.
Referring to fig. 3 and 4, the heated spike raw material enters the thread rolling device 4 to be rolled and threaded to obtain a spiral spike, and the screw 1 of the spiral spike comprises a threaded part 11 and a rod part 12.
Referring to fig. 6, the thread rolling equipment 4 includes a thread rolling machine body 41, a feeding device 46 and a discharging device 47, at least two thread rolling seats 42 and a transmission hydraulic cylinder for driving the thread rolling seats 42 to move are arranged on the thread rolling machine body 41, specifically, three thread rolling seats 42 are arranged, a thread rolling shaft 43 and a driving motor 44 for driving the thread rolling shaft 43 to rotate are arranged on the thread rolling seats 42, and threads are arranged on all the three thread rolling shafts 43. When the spike raw material is placed between the three thread rolling shafts 43 by the feeding device 46, the three thread rolling seats 42 move so that the thread rolling shafts 43 clamp the spike raw material, and thread rolling is performed on the spike raw material in the process of rotating the thread rolling shafts 43.
Referring to fig. 6 and 7, a bracket 45 is provided at one side of the thread rolling machine body 41, and a feeding device 46 is provided on the bracket 45. The feeding device 46 includes a material rod 461 and a first driving member for driving the material rod 461 to move along its length direction, specifically, the first driving member is configured as a first oil cylinder 462, and a piston rod of the first oil cylinder 462 is connected with the material rod 461. The material rod 461 is arranged along the axial direction of the thread rolling shaft 43, one end of the material rod 461 close to the thread rolling shaft 43 is provided with a connecting groove 463 for placing the screw head 13 of the spike raw material, and the connecting groove 463 and the central position of the thread rolling shaft 43 are on the same straight line.
Referring to fig. 6 and 7, after the spike material is heated, the worker uses a tool to remove the spike material from the fixing block 341 and place the screw head 13 of the spike material in the connecting groove 463, and starts the first cylinder 462, the material rod 461 and the spike material fixed in the connecting groove 463 move toward the direction close to the thread rolling shafts 43 under the driving action of the first cylinder 462, when the screw rod 1 of the spike material is located between the three thread rolling shafts 43, the thread rolling shafts 43 move in opposite directions and clamp the spike material, the thread rolling shafts 43 rotate under the driving action of the driving motor 44, and thread rolling is performed on the spike material during the rotation of the thread rolling shafts 43.
Referring to fig. 6 and 7, the discharging device 47 includes a conveying belt 471 arranged on the support 45 and located below the feeding device 46, and a pushing rod 472 arranged between the thread rolling shafts 43, a first transmission member for driving the pushing rod 472 to move along the axial direction of the thread rolling machine body 41 is arranged on the thread rolling machine body, specifically, the first transmission member is arranged to drive a hydraulic cylinder 473, a piston rod of the driving hydraulic cylinder 473 is connected with the pushing rod 472, and the pushing rod 472 and the connecting groove 463 are located on the same straight line.
Referring to fig. 7, the one end of the conveyer belt 471 far away from the screw rolling machine body 41 is provided with a material receiving assembly 48, specifically, the material receiving assembly 48 comprises a collecting box 481, a striker plate 482 is arranged on the support 45 and at the end of the conveyer belt 471 far away from the screw rolling machine body 41, and the striker plate 482 is arc-shaped.
Referring to fig. 6 and 7, after the thread rolling of the raw material of the spike is completed to form the spiral spike, the thread rolling shaft 43 moves back and forth, and meanwhile, the pushing rod 472 moves under the driving action of the driving hydraulic cylinder 473 and pushes the spiral spike to move, so that the spiral spike moves to the lower conveyer belt 471, and when the spiral spike moves on the conveyer belt 471, the spiral spike moves to the collecting box 481 under the guiding action of the material blocking plate 482.
Referring to fig. 3 and 4, after the screw spike after being processed is partially sleeved with the gasket 15 on the screw rod 1, the screw spike sleeved with the gasket 15 enters the pressing device 5 to be pressed to form the burr 16.
Referring to fig. 8, the press device 5 includes a press body 51, a driving block 52 disposed on the press body 51, and a second hydraulic transmission member for driving the driving block 52 to move up and down, specifically, the second hydraulic transmission member is configured as a second hydraulic cylinder 53, and a piston rod of the second hydraulic cylinder 53 is connected to the driving block 52. A supporting block 54 is arranged on the press body 51 and below the driving block 52, a fixed pipe 55 for placing a screw spike is arranged at the top end of the supporting block 54, and a notch 56 is arranged at the top of the fixed pipe 55 and along one axial end thereof.
Referring to fig. 9 and 10, a fixing groove 57 is formed in the bottom end of the driving block 52, two clamping blocks 58 are arranged in the fixing groove 57, a second transmission member for driving the two clamping blocks 58 to move in the opposite direction or in the opposite direction is arranged on the driving block 52, specifically, the second transmission member is a double-threaded screw 59, and the double-threaded screw 59 is provided with threads at two axial ends thereof and opposite directions of the threads at the two ends. The double-headed screw 59 is rotated, and since the holding blocks 58 are disposed in the fixing grooves 57, the two holding blocks 58 are moved toward or away from each other. Set up butt piece 6 between two grip blocks 58, the bottom of butt piece 6 is the arc with screw spike screw 1 part looks adaptation.
Referring to fig. 8, when it is necessary to press a screw spike on which a washer 15 (see fig. 3) is fitted, the screw portion 11 of the screw spike is inserted into the fixing tube 55, and at this time, the shank 12 of the screw spike is set in the notch 56. After the spiral spike is placed, the second hydraulic cylinder 53 is started, the second hydraulic cylinder 53 drives the driving block 52 to move downwards, so that the butt joint block 6 is in contact with the rod part 12 of the spiral spike and burrs 16 (refer to fig. 3) are formed, the burrs 16 can play a role in fixing the gasket 15, and the probability of the situation that the gasket 15 breaks away from the spiral spike in the transportation process is effectively reduced.
The implementation principle of the first embodiment of the application is as follows:
after cutting, sharpening, heating and punching steps, the initial blank forms a spike raw material with a backing plate 14 and a screw head 13, then burrs on the outer wall of the backing plate 14 can be removed through a punching device 2, a screw rod 1 of the spike raw material is heated and rolled to obtain a spiral spike, a gasket 15 is sleeved on a rod part 12 of the processed spiral spike, and the spiral spike is punched through a pressure device 5 to form a burr 16.
The former material of spike that will punch formation spiral shell head 13 and backing plate 14 is placed in accommodation hole 25, because the diameter of backing plate 14 equals with the diameter of accommodation hole 25, spiral shell head 13 passes accommodation hole 25, fix the former material of spike in accommodation hole 25 under the effect of the deckle edge of backing plate 14 outer wall, start first pneumatic cylinder 23, first pneumatic cylinder 23 drives and goes up mould 22 downstream, make it offsets with the one end that the former material of spike kept away from spiral shell head 13 to go up mould 22, the former material of spike downstream under the driving action of last mould 22, and can get rid of the deckle edge on the backing plate 14 outer wall.
Get rid of the deckle edge of backing plate 14 outer wall after, need heat the screw rod 1 of the former material of spike, the staff will receive the former material of spike in the workbin 27 and place in mounting groove 342 and constant head tank 343, make the screw rod 1 of the former material of spike place in constant head tank 343 to make the backing plate 14 of the former material of spike offset with the diapire of mounting groove 342, fix the former material of spike. The spike raw material moves under the conveying action of the conveyor belt 323 and passes through the medium-frequency induction heating box 33, and the medium-frequency induction heating box 33 can heat the screw 1 of the spike raw material and heat the spike raw material to a set temperature.
After the screw rod 1 of the track spike raw material is heated, a worker uses a tool to take down the track spike raw material and place the screw head 13 of the track spike raw material in the connecting groove 463 of the material rod 461, the first oil cylinder 462 is started, the material rod 461 and the track spike raw material fixed in the connecting groove 463 move towards the direction close to the thread rolling shafts 43 under the driving action of the first oil cylinder 462, when the screw rod 1 of the track spike raw material is positioned between the three thread rolling shafts 43, the three thread rolling shafts 43 move oppositely and clamp the track spike raw material, the thread rolling shafts 43 rotate under the driving action of the driving motor 44, and thread rolling is carried out on the track spike raw material in the rotating process of the thread rolling shafts 43.
After the screw rolling is completed on the screw raw material to form the spiral spike, the three screw rolling shafts 43 move back to back, and meanwhile, the pushing rod 472 moves under the driving action of the driving hydraulic cylinder 473 and pushes the spiral spike to move, so that the spiral spike falls onto the conveyer belt 471 below, and when the spiral spike moves on the conveyer belt 471 and moves into the collecting box 481 under the guiding action of the baffle 97.
The spacer 15 is fitted over the shank 12 of the finished screw spike, and the screw portion 11 of the screw spike is inserted into the fixing tube 55, and at this time, the shank 12 of the screw spike is disposed at the notch 56. After the screw spike is placed, the second hydraulic cylinder 53 is started, the second hydraulic cylinder 53 drives the driving block 52 to move downwards, so that the abutting block 6 is in contact with the rod part 12 of the screw spike and forms burrs 16, and the processing of the screw spike is completed.
Example two:
the difference between this embodiment and the first embodiment is: referring to fig. 11 and 12, a support 45 is arranged on one side of the thread rolling machine body 41, a feeding device 46 is arranged on the support 45, a bin 7 for placing spike raw materials heated by the screw rod 1 in the step is arranged on one side of the support 45, the bin 7 is arranged in an inclined manner, and one end, far away from the support 45, of the bin 7 is higher than one end, close to the support 45, of the bin 7.
Referring to fig. 11 and 12, the feeding device 46 includes a material plate 8 and a second driving member for driving the material plate 8 to move along a length direction thereof, specifically, the second driving member is provided as a second cylinder 91, and a piston rod of the second cylinder 91 is fixedly connected to the material plate 8. The top end of the material plate 8 is formed with a U-shaped groove 92 for placing the spike raw material, and the U-shaped groove 92 and the center positions of the three thread rolling shafts 43 are located on the same straight line.
Referring to fig. 11, a guide plate 93 is disposed between the support 45 and the bin 7, the guide plate 93 is disposed obliquely, and one end of the guide plate 93 near the bin 7 is higher than one end of the guide plate 93 near the support 45.
Referring to fig. 11 and 12, a receding groove 94 is formed between the magazine 7 and the support 45, a driving assembly for moving the spike raw material in the magazine 7 to the guide plate 93 is disposed in the magazine 7, specifically, the driving assembly is a driving plate 95 slidably disposed in the receding groove 94 and a third driving member for driving the driving plate 95 to move up and down, the third driving member is a third oil cylinder 96, a piston rod of the third oil cylinder 96 is connected with the driving plate 95, a top end of the driving plate 95 is disposed in an inclined manner, and one end of the top of the driving plate 95, which is far away from the support 45, is higher than the top of the driving plate 95 and is close to one end of the support 45.
Referring to fig. 11 and 12, one end of the guide plate 93 adjacent to the bracket 45 is disposed above the flitch 8, and one end of the guide plate 93 adjacent to the magazine 7 is disposed above the magazine 7. The guide plate 93 is provided with a baffle 97 and a fourth driving member for driving the baffle 97 to rotate, specifically, the fourth driving member is a transmission motor 98, and a conveying shaft of the transmission motor 98 is connected with the baffle 97 for driving the baffle 97 to rotate.
Referring to fig. 11 and 12, in the initial state, the driving plate 95 is flush with the bottom wall of the magazine 7, and after the spike stock is placed in the magazine 7, the spike stock slides to the top end of the driving plate 95 at the end of the magazine 7 near the support 45 due to the inclined arrangement of the magazine 7.
Referring to fig. 11 and 12, when the third oil cylinder 96 is started, the third oil cylinder 96 drives the driving plate 95 and the spike stock arranged on the driving plate 95 to move upward, and when the top end of the driving plate 95 is flush with the top end of the guide plate 93, the spike stock moves onto the guide plate 93 and slides downward. Then, the driving motor 98 is started, and the baffle 97 is driven by the driving motor 98 to rotate, so that the spike raw material on the guide plate 93 moves into the U-shaped groove 92 of the material plate 8.
Referring to fig. 11 and 12, when the spike raw material moves into the U-shaped groove 92, one end of the screw rod 1 of the spike raw material, which is far away from the screw head 13, is disposed outside the U-shaped groove 92. And starting the second oil cylinder 91, moving the material plate 8 and the track spike raw material placed in the U-shaped groove 92 to the direction close to the thread rolling shafts 43 under the driving action of the second oil cylinder 91, when the screw 1 of the track spike raw material is positioned between the three thread rolling shafts 43, enabling the three thread rolling shafts 43 to move oppositely and clamp the track spike raw material, rotating the thread rolling shafts 43 under the driving action of the driving motor 44, and rolling threads on the track spike raw material in the rotating process of the thread rolling shafts 43.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The processing technology of the spiral spike is characterized by comprising the following steps:
cutting: cutting the blank according to a set length to form a spike raw material;
turning a tip: sharpening one end of the spike raw material to form a conical tip;
heating: heating the other end of the spike raw material according to requirements;
stamping: stamping one heated end of the spike raw material to form a screw head (13) and a backing plate (14);
trimming: after the spike section bar is cooled, starting a pre-prepared stamping device (2) to remove burrs on the surface of the backing plate (14);
screw heating: starting a heating device (3) prepared in advance to heat one end of the spike raw material provided with the conical tip; the heating device (3) comprises a rack (31), a conveying assembly (32) arranged on the rack (31) and a medium-frequency induction heating box (33), wherein a clamping assembly (34) used for clamping a spike raw material is arranged on the conveying assembly (32), an opening (331) through which the spike raw material passes is formed in the top end of the medium-frequency induction heating box (33), and an induction heating coil is arranged in the opening (331);
rolling the filaments: starting a pre-prepared thread rolling device (4) to roll threads on the spike raw material obtained by heating the screw (1) to form threads so as to obtain a spiral spike; the thread rolling equipment (4) comprises a thread rolling machine body (41), a feeding device (46) and a discharging device (47), wherein at least two thread rolling seats (42) are arranged on the thread rolling machine body (41), thread rolling shafts (43) are arranged on the thread rolling seats (42), and the thread rolling shafts (43) are used for rolling threads on the track nail raw material;
a support (45) is arranged on one side of the thread rolling machine body (41), the feeding device (46) is arranged on the support (45), and a bin (7) for placing the spike raw material heated by the screw rod in the step is arranged on one side of the support (45); the stock bin (7) is provided with a driving assembly used for moving the spike raw materials in the stock bin (7) into the U-shaped groove (92);
a yielding groove (94) is formed between the stock bin (7) and the support (45), and the driving assembly comprises a driving plate (95) which is arranged in the yielding groove (94) in a sliding mode along the vertical direction and a third driving piece which is used for driving the driving plate (95) to move up and down; the top end of the driving plate (95) is obliquely arranged, and one end, far away from the support (45), of the top of the driving plate (95) is higher than one end, close to the support (45), of the top of the driving plate (95);
a guide plate (93) is arranged between the support (45) and the stock bin (7), the guide plate (93) is obliquely arranged, and one end, close to the stock bin (7), of the guide plate (93) is higher than one end, close to the support (45), of the guide plate (93); the one end setting that deflector (93) are close to support (45) is in the top of flitch (8), the one end setting that deflector (93) are close to feed bin (7) is in the top of feed bin (7).
2. The process for manufacturing a screw spike according to claim 1, wherein: further comprising the steps of:
sleeving a gasket: sleeving a gasket (15) on the screw (1) part of the spiral spike completing the thread rolling step;
and (3) punching to form burrs: starting a prepared pressure device (5) to punch the spiral spike sleeved with the gasket (15) to form burrs (16).
3. The process of claim 1, wherein: the conveying assembly (32) comprises a driving wheel (321), a driven wheel (322) and a conveying belt (323) arranged between the driving wheel (321) and the driven wheel (322), the driving wheel (321) and the driven wheel (322) are axially arranged along the vertical direction, and the conveying belt (323) is annularly arranged;
the clamping assembly (34) comprises a plurality of fixed blocks (341) arranged on the conveyor belt (323), the top end of each fixed block (341) is provided with a mounting groove (342), each mounting groove (342) extends to the side wall, far away from the conveyor belt (323), of each fixed block (341), a positioning groove (343) is arranged on the bottom wall of each mounting groove (342), and each positioning groove (343) extends to the side wall, far away from the conveyor belt (323), of each fixed block (341);
and a rubber pad (344) is arranged on the inner wall of the positioning groove (343).
4. The process for manufacturing a screw spike according to claim 1, wherein: a support (45) is arranged on one side of the thread rolling machine body (41), and the feeding device (46) is arranged on the support (45);
the feeding device (46) comprises a material rod (461) and a first driving piece for driving the material rod (461) to move along the length direction of the material rod, and the material rod (461) is arranged along the axial direction of the thread rolling shaft (43); one end of the material rod (461) close to the thread rolling shafts (43) is provided with a connecting groove (463) for placing spike raw materials, and the connecting groove (463) and the center positions of the thread rolling shafts (43) are located on the same straight line.
5. The process for manufacturing a screw spike according to claim 1, wherein: the feeding device (46) comprises a material plate (8) and a second driving piece for driving the material plate (8) to move along the length direction of the material plate, a U-shaped groove (92) for placing a spike raw material is formed at the top end of the material plate (8), and the U-shaped groove (92) and the centers of the plurality of thread rolling shafts (43) are located on the same straight line;
the storage bin (7) is provided with a driving assembly used for moving the spike raw materials in the storage bin (7) into the U-shaped groove (92).
6. The process for manufacturing a screw spike according to claim 5, wherein: feed bin (7) are the slope setting, the one end that support (45) were kept away from in feed bin (7) is higher than the one end that feed bin (7) are close to support (45).
7. The process for manufacturing a screw spike according to claim 6, wherein: the guide plate (93) is provided with a baffle plate (97) and a fourth driving piece for driving the baffle plate (97) to rotate.
8. The process for manufacturing a screw spike according to claim 1, wherein: the discharging device (47) comprises a push rod (472) arranged among a plurality of thread rolling shafts (43) and a conveying belt (471) which is arranged on the bracket (45) and is positioned below the feeding device (46), and a first transmission piece for driving the push rod (472) to move along the length direction of the thread rolling machine body (41) is arranged on the thread rolling machine body;
and a material receiving assembly (48) is arranged at one end, far away from the thread rolling machine body (41), of the conveying belt (471).
9. The process of claim 1, wherein: the stamping equipment (2) comprises a stamping machine body (21), an upper die (22) arranged on the stamping machine body (21) and a first hydraulic transmission part for driving the upper die (22) to move up and down, wherein a fixing plate (24) is arranged on the stamping machine body (21) and positioned below the upper die (22), the top end of the fixing plate (24) is provided with a containing hole (25) in a penetrating manner, and the diameter of the containing hole (25) is equal to that of the base plate (14);
a belt conveyor (26) is arranged below the fixing plate (24), and a material receiving box (27) is arranged at the output end of the belt conveyor (26).
10. The process for manufacturing a screw spike according to claim 2, wherein: the pressure device (5) comprises a press machine body (51), a driving block (52) arranged on the press machine body (51) and a second hydraulic transmission piece for driving the driving block (52) to move up and down;
a supporting block (54) is arranged on the press body (51) and below the driving block (52), a fixed pipe (55) for placing a screw spike is arranged at the top end of the supporting block (54), and a notch (56) is arranged at the top of the fixed pipe (55) and along one axial end of the fixed pipe;
the bottom of drive block (52) is provided with fixed slot (57), be provided with two grip blocks (58) in fixed slot (57), be provided with on drive block (52) and be used for driving two grip blocks (58) and be the second driving medium of in opposite directions or back of the body motion, two be provided with butt block (6) between grip block (58), butt block (6) are used for offseting with the spiral railway spike.
CN202010849474.9A 2020-08-21 2020-08-21 Processing technology of spiral spike Active CN112091538B (en)

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