CN111496482A

CN111496482A - Machining method of trunnion hanging plate and threading machine for implementing machining method

Info

Publication number: CN111496482A
Application number: CN202010374408.0A
Authority: CN
Inventors: 杨慧
Original assignee: Jiangsu Zhongyu Power Equipment Co ltd
Current assignee: Jiangsu Zhongyu Power Equipment Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-08-07
Anticipated expiration: 2040-05-06
Also published as: CN111496482B

Abstract

The invention relates to a processing method of a trunnion hanging plate and a threading machine for implementing the processing method, which relate to the technical field of trunnion hanging plate processing, and the processing method mainly comprises the following steps: the method comprises the steps of material cutting, heating, forging, turning, punching, threading, shot blasting, galvanizing and assembling. The threading machine comprises a frame, wherein a clamping device is arranged on the frame, the clamping device comprises a workbench and two clamping blocks for clamping a trunnion hanging plate, a sliding rail for the workbench to slide is arranged on the frame, a support is also arranged on the workbench, a first air cylinder is arranged on the support, and a clamping plate for assisting in clamping the trunnion hanging plate is arranged on a piston rod of the first air cylinder. The invention solves the problems that the existing threading machine can not automatically clamp the trunnion hanging plate and has low machining precision, and has the effects of automatically clamping the trunnion hanging plate and improving the machining precision.

Description

Machining method of trunnion hanging plate and threading machine for implementing machining method

Technical Field

The invention relates to the technical field of trunnion hanging plates, in particular to a machining method of a trunnion hanging plate and a threading machine for implementing the machining method.

Background

Electric power fittings for connecting cables are often needed in power transmission lines, and the trunnion hanging plate is a fitting with a large demand, so that the trunnion hanging plate is required to have the capacity of mass production.

As shown in fig. 1, for the structure schematic diagram of trunnion hanging plate 1, including ear 11 and axial region 12, the upside of ear 11 is equipped with circular arc surface 111, the downside of trunnion then is equipped with circular arc surface 112 down, the both sides of ear 11 are located relatively to axial region 12, the one end of keeping away from ear 11 on axial region 12 is equipped with screw thread portion 121 for coupling nut 122, locking hole 123 has been seted up on screw thread portion 121, be used for inserting retaining member 124, carry out spacing locking to nut 122 on screw thread portion 121, still overlap on axial region 12 and be equipped with gasket 125.

The existing machining method of the trunnion hanging plate generally comprises the steps of firstly casting a blank of the trunnion hanging plate, forming an ear part and a shaft part, then turning the shaft part through a lathe, then threading the shaft part through a threading machine, machining a thread part, and finally machining a hole part and a locking hole by utilizing punching equipment. The existing threading machine adopts manual clamping during threading, so that the clamping precision is difficult to guarantee, and the processing precision of a product is easy to lower.

Disclosure of Invention

The invention aims to provide a method for processing a trunnion hanging plate, which has the effect of higher product processing precision.

The technical purpose of the invention is realized by the following technical scheme: a processing method of a trunnion hanging plate comprises the following specific process steps:

s1, selecting a long rod-shaped raw material to perform material breaking treatment, wherein the length of each broken rod piece is 25-35 cm, and the diameter of each broken rod piece is 2-5 cm;

s2, arranging the rod pieces in parallel in a furnace chamber of a high-frequency heating furnace, and heating the middle positions of the rod pieces at 1100-1200 ℃ for 5-7 min;

s3, forging the middle position of the rod piece by adopting forging equipment to form an ear part;

s4, performing excircle turning on two ends of the rod piece by adopting excircle turning equipment to form a shaft part;

s5, punching the plane of the lug part by adopting punching equipment, punching hole parts, and respectively punching locking holes on the two shaft parts;

s6, threading the two shaft parts by adopting an automatic clamping threading machine, and respectively processing thread parts on the two shaft parts;

s7, performing shot blasting treatment on the blank of the trunnion hanging plate by using a shot blasting machine, wherein the treatment time is 15-25 min, and polishing edges or burrs of the trunnion hanging plate;

s8, immersing the polished trunnion hanging plate into a galvanizing bath filled with molten zinc, forming a galvanized layer on the surface of the trunnion hanging plate, and air-cooling until the galvanized layer is completely solidified on the surface of the trunnion hanging plate;

s9, assembling the threaded parts at the two ends of the trunnion hanging plate with the nuts and the gaskets, clamping the locking pieces into the locking holes, and packaging after the assembly is completed.

By adopting the technical scheme, the processing method comprises the following steps: firstly, cutting off raw materials, then heating and forging the middle part of a rod piece, and then turning, punching, threading, performing shot blasting, polishing and galvanizing treatment on the outer circle of the two ends of the trunnion hanging plate; by adopting the forging process, the defects of casting-state looseness and the like generated in the smelting process can be eliminated, the microstructure is optimized, and meanwhile, because the complete metal streamline is preserved, the mechanical property of the forging is generally superior to that of a casting made of the same material; the outer circle is turned firstly and then the hole is punched, so that the processing precision of the hole can be improved, and the possibility of damaging the thread during punching can be reduced by punching and threading; the processing method adopts an automatic clamping threading machine, and can improve the processing precision of products.

According to the defects of the prior art, the invention also aims to provide the threading machine for implementing the processing method, which has the effects of automatically clamping the trunnion hanging plate and saving the manual labor of workers.

The technical purpose of the invention is realized by the following technical scheme:

a threading machine comprises a rack, wherein a threading device is arranged on one side of the rack, a clamping device is arranged on one side, far away from the threading device, of the rack, the clamping device comprises a workbench, a slide rail for the workbench to slide is arranged on the rack, a clamping plate is arranged on the workbench, clamping blocks are connected to the clamping plate in a relatively sliding mode along the width direction of the rack, first V-shaped grooves are symmetrically formed in opposite surfaces of the two clamping blocks, and a first driving device for driving the two clamping blocks is arranged on the clamping plate;

still be equipped with the support on the workstation, be equipped with first cylinder on the support, be equipped with splint on the piston rod of first cylinder, it presss from both sides tight post to be equipped with first clamp column, second in proper order on the splint and presss from both sides tight post and third clamp column, the tight post of third clamp is inserted in the hole portion, first clamp column and second press from both sides tight post respectively with the last arc surface butt of gudgeon link plate, the width of splint is less than the width of ear, works as when the piston rod of first cylinder stretches out, keep away from on the gudgeon link plate the axial region of mantle fiber device is located two press from both sides between the piece, and the axis of axial region and the central line along vertical direction of first V-arrangement groove are equal height.

By adopting the technical scheme, the first clamping column, the second clamping column are abutted against the upper arc surface of the trunnion hanging plate, the third clamping column is inserted into the hole part of the trunnion hanging plate, the first clamping column, the second clamping column and the third clamping column are mutually matched to fix the trunnion hanging plate, then the first air cylinder drives the clamping plate to move towards the threading device and stop when the shaft part at one end of the trunnion hanging plate, which is far away from the threading device, is positioned between the two clamping blocks, and then the first driving device drives the two clamping blocks to clamp, so that the shaft part at one end of the trunnion hanging plate, which is far away from the threading device, is clamped, automatic clamping is realized, and the physical labor of workers is reduced; the workstation removes towards the mantle fiber device afterwards, carries out the mantle fiber to the one end that the trunnion link plate is close to the mantle fiber device, and first clamp post, second clamp post and third clamp post still support the trunnion link plate this moment, promote the stability that the trunnion link plate was processed man-hour.

The present invention in a preferred example may be further configured to: the top wall of the clamping plate is provided with a motor plate, the motor plate is fixedly connected with a first stepping motor, and an output shaft of the first stepping motor is fixedly connected with the clamping plate.

Through adopting above-mentioned technical scheme, after the axial region mantle fiber of one end on the trunnion link plate, two electronic clamp blocks of a drive arrangement loosen, the piston rod of first cylinder withdraws, first step motor starts afterwards, and control splint rotate 180 degrees, and the piston rod of first cylinder stretches out again afterwards, and two clamp blocks press from both sides tightly the axial region of mantle fiber, and the workstation removes towards the mantle fiber device once more afterwards, carries out the mantle fiber to the axial region of not mantle fiber on the trunnion link plate.

The present invention in a preferred example may be further configured to: the material conveying device is arranged on the rack and comprises a height lifting plate, the height lifting plate is oppositely arranged on the rack along the width direction of the rack, a third air cylinder is arranged on the height lifting plate, and a longitudinal working plate is arranged at the top of a piston rod of the third air cylinder;

be equipped with the second cylinder on the vertical work board, the piston rod orientation of second cylinder the one end of splint is fixed with shape's anchor clamps, anchor clamps include bottom plate and the relative curb plate that sets up along bottom plate length direction, the bottom plate with curb plate fixed connection, be equipped with the constant head tank that supplies the lower arc surface card of gudgeon link plate to go into on the bottom plate, the second V-arrangement groove that supplies axial region card to go into is seted up at the top of curb plate.

By adopting the technical scheme, the trunnion hanging plate is placed in the clamp, the second V-shaped grooves are used for clamping the shaft parts, and the arc grooves are used for clamping the lower arc surface, so that the trunnion hanging plate is stably placed in the clamp; when the trunnion hanging plate needs to be transferred onto the clamping plate, the piston rod of the third cylinder extends out to drive the longitudinal working plate to ascend, then the piston rod of the second cylinder extends out to push the clamp to the clamping plate, so that the trunnion hanging plate is clamped by the first clamping column, the second clamping column and the third clamping column, and then the piston rod of the third cylinder retracts to separate the clamp from the trunnion hanging plate, thereby facilitating subsequent threading; after the equal mantle fiber of axial region at gudgeon link plate both ends finishes, the second cylinder that is located the other end of frame width direction stretches out, moves anchor clamps to the below of gudgeon link plate, and the piston rod of third cylinder stretches out this moment for gudgeon link plate is located anchor clamps, and the piston rod of second cylinder retracts again, takes out gudgeon link plate.

The present invention in a preferred example may be further configured to: and one ends of the first clamping column, the second clamping column and the third clamping column, which are far away from the clamping plate, are respectively provided with a pointed cone part.

Through adopting above-mentioned technical scheme, the pointed cone portion can also be with the position correction along with the first tight post of clamp, the tight post of second clamp and the tight post of third clamp when the position of trunnion link plate in anchor clamps slightly deviates.

The present invention in a preferred example may be further configured to: the clamp plate is provided with a placing groove for placing the first clamping column, the second clamping column and the third clamping column respectively, the side faces of the first clamping column, the second clamping column and the third clamping column are respectively and oppositely provided with an inserted bar, the inserted bar is inserted into the side wall of the placing groove, and the inserted bar is sleeved with a compression spring.

Through adopting above-mentioned technical scheme, when the last arc surface of gudgeon link plate and arc surface slightly have the deviation down, press from both sides tight post accessible inserted bar and slide in splint, compensate the deviation, and compression spring then can make press from both sides tight post and remain the clamp force to gudgeon link plate all the time.

The present invention in a preferred example may be further configured to: the improved threading device is characterized in that a threading frame used for installing a threading device is arranged on the frame, a guide sleeve is arranged on the threading frame, a guide rod is inserted into the guide sleeve, an installation sleeve is arranged on the clamping plate and rotatably connected with one end of the guide rod, a blocking rod sleeve is sleeved on the guide rod, a blocking rod is arranged on the blocking rod sleeve, and one end of the blocking rod sleeve, which is far away from the blocking rod, is located between the two clamping blocks along the axial projection of the guide rod.

Through adopting above-mentioned technical scheme, the pin can be used to when the trunnion link plate carries out the clamping, inject the trunnion link plate and stretch out the length that presss from both sides tight piece, and then make the length of the screw thread portion of axial region processing keep unanimous.

The present invention in a preferred example may be further configured to: the stop lever sleeve is in threaded connection with a locking bolt, and the guide rod is provided with a guide groove for the locking bolt to slide along the axial direction of the guide rod.

Through adopting above-mentioned technical scheme, the guide arm can be followed to the pin sleeve and slided, adjusts the length that the gudgeon link plate stretches out the clamp block to accessible locking bolt locks fixedly.

The present invention in a preferred example may be further configured to: the uide bushing orientation the guide bar is equipped with the guiding axle, the guide way is kept away from the confession has been seted up to the one end of installation cover the gliding arc groove of guide axle, the arc groove with the guide way intercommunication, the arc groove with the axis of guide bar inclines each other, works as the guide axle is located during the guide way, the pin is located press from both sides the place ahead of tight piece, works as the guide axle is located the arc groove is kept away from during the one end of guide way, the pin is located press from both sides the top of tight piece.

Through adopting above-mentioned technical scheme, when the workstation feeds, drive the guide bar and remove towards the uide bushing for circular arc groove and guide way remove along the guiding axle, because the slope setting in circular arc groove, and the guiding axle is fixed again, so still can take place to rotate at the guide bar when removing, again because the pivot is exactly located the circular arc groove when initial condition, so when the workstation begins to remove, the guide bar removes at once and rotates, reduces the possibility that pin and mantle fiber device produce the collision.

The present invention in a preferred example may be further configured to: one side of the stop lever, which faces the clamping block, is provided with a photoelectric sensor, the sensing surface of the photoelectric sensor faces the end far away from the stop lever sleeve, and the photoelectric sensor is electrically connected with the first driving device.

Through adopting above-mentioned technical scheme, when the axial region and the pin butt of trunnion link plate one end, the light in photoelectric sensing ware the place ahead is dark, and photoelectric sensor sends an electric signal promptly and gives first drive arrangement, and two tight pieces of clamp of first drive arrangement redriven press from both sides the trunnion link plate and press from both sides tightly.

In summary, the invention includes at least one of the following beneficial technical effects:

1. through the arrangement of the clamping device, the bracket, the first air cylinder, the clamping plate, the first clamping column, the second clamping column and the third clamping column, the effect of automatically clamping the trunnion hanging plate and saving the manual labor of workers can be achieved;

2. the trunnion hanging plate can be automatically reversed through the arrangement of the first air cylinder, the first stepping motor and the motor plate, and the two shaft parts can be machined;

3. through the setting of high lifter plate, third cylinder, vertical working plate, second cylinder and anchor clamps, can convey the trunnion link plate that does not process to the splint to automatic with the trunnion link plate that processes take off from the splint, and anchor clamps are for the special clamping part to trunnion link plate design, can make the trunnion link plate remain stable state in the motion betterly.

Drawings

Fig. 1 is a schematic structural view of a trunnion hanging plate in the prior art.

Fig. 2 is a schematic structural view for embodying the whole in this embodiment 1.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a partially enlarged schematic view of a portion B in fig. 2.

Fig. 5 is a partially enlarged schematic view of a portion C in fig. 4.

Fig. 6 is a schematic structural view for a gear, a rack, and a second stepping motor in embodiment 1.

Fig. 7 is a partially enlarged schematic view of a portion D in fig. 6.

In the figure, 1, a trunnion hanging plate; 11. an ear portion; 111. an upper arc surface; 112. a lower arc surface; 113. a hole portion; 12. a shaft portion; 121. a threaded portion; 122. a nut; 123. a locking hole; 124. a locking member; 125. a gasket; 2. a frame; 21. a slide rail; 3. a threading device; 31. sleeving a wire frame; 32. a guide sleeve; 321. a guide shaft; 33. a guide bar; 331. a stop lever sleeve; 3311. a stop lever; 3312. a photoelectric sensor; 3313. locking the bolt; 332. a guide groove; 333. an arc groove; 34. a chuck; 341. sleeving a threading cutter; 4. a clamping device; 41. a work table; 411. a clamping plate; 412. a first driving device; 4121. a vertical plate; 4122. a fourth cylinder; 4123. installing a sleeve; 413. a clamping block; 4131. a first V-shaped groove; 414. a support; 415. a first cylinder; 416. a motor plate; 4161. a first stepper motor; 417. a splint; 4171. a first clamping post; 4172. a second clamping post; 4173. a third clamping post; 4174. a placement groove; 4175. inserting a rod; 4176. a compression spring; 4177. a tapered section; 42. a rack; 421. a gear; 422. a second stepping motor; 5. a material conveying device; 51. a height lifting plate; 52. a third cylinder; 521. a longitudinal work plate; 522. a second cylinder; 523. a clamp; 5231. a side plate; 5232. a base plate; 5233. a second V-shaped groove; 5234. and (6) positioning a groove.

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

Example 1:

a processing method of a trunnion hanging plate comprises the following steps:

s1, selecting long rod-shaped raw materials, and performing material cutting treatment through a material cutting machine, wherein the length of each cut rod piece is 25-35 cm, and the diameter of each cut rod piece is 2-5 cm;

s3, placing the rod piece on a special die, and forging the middle position of the rod piece by using a friction press machine to form an ear part;

s4, turning the outer circles of the two ends of the rod piece by adopting a numerical control lathe to form a shaft part, wherein the length of the shaft part is 7-10 cm;

s5, punching the plane of the ear part by a drilling machine, punching hole parts, and respectively punching locking holes on the two shaft parts;

s6, threading the two shaft parts by using an automatic clamping threading machine, and respectively machining threaded parts on the two shaft parts, wherein the length of each threaded part is 3-6 cm;

Example 2:

referring to fig. 2, the threading machine disclosed by the invention comprises a frame 2, a threading device 3 is installed on one side of the frame 2, a clamping device 4 is arranged on one end of the frame 2 far away from the threading device 3, a material conveying device 5 is arranged on one side of the clamping device 4 far away from the threading device 3, and the material conveying device 5 is installed on the frame 2. The frame 2 is fixedly connected with a slide rail 21 for the clamping device 4 to slide towards the threading device 3.

Referring to fig. 2 and 3, a threading frame 31 for mounting the threading device 3 is provided on the frame 2, and the threading device 3 includes a chuck 34 rotatably connected to the threading frame 31, and a plurality of threading tools 341 are uniformly arrayed on the chuck 34 along a circumferential direction thereof for threading.

Referring to fig. 4, the material transporting device 5 includes a height lifting plate 51, the height lifting plate 51 is relatively installed on the frame 2 along the width direction of the frame 2, a third cylinder 52 is arranged on the height lifting plate 51, and a longitudinal working plate 521 is fixedly connected to the top of a piston rod of the third cylinder 52. A second cylinder 522 is fixedly connected to the longitudinal working plate 521, and a clamp 523 for placing the trunnion hanging plate 1 is fixed to one end of a piston rod of the second cylinder 522, which faces the frame 2 along the width direction symmetry center plane.

Referring to fig. 5, the clamp 523 includes a bottom plate 5232 and side plates 5231 oppositely arranged along the length direction of the bottom plate 5232, the bottom plate 5232 and the side plates 5231 are integrally formed, and a positioning groove 5234 for the lower arc surface 112 of the trunnion hanging plate 1 to be clamped into is arranged on the bottom plate 5232, so that when the clamp 523 moves, the positioning groove 5234 can reduce the possibility of shaking of the trunnion hanging plate 1, and meanwhile, the positioning accuracy of the trunnion hanging plate 1 along the axial direction of the shaft portion 12 is ensured. The top of the side plate 5231 is provided with a second V-shaped groove 5233 for the shaft portion 12 to be inserted into, and the two second V-shaped grooves 5233 can clamp the two shaft portions 12 of the trunnion hanging plate 1, so that the trunnion hanging plate 1 can be kept stable in a static state. The positioning groove 5234 is used for clamping the lower arc surface 112 of the trunnion hanging plate 1.

Referring to fig. 6 and 7, the clamping device 4 includes a working table 41, the working table 41 is slidably connected to the sliding rail 21, a rack 42 is fixedly connected to the bottom of the working table 41, a gear 421 engaged with the rack 42 is rotatably connected to the frame 2, the gear 421 is driven by a second stepping motor 422 fixedly connected to the side wall of the frame 2, and the second stepping motor 422 may be replaced by a handwheel.

Referring to fig. 4 and 5, a bracket 414 is fixedly connected to the table 41, a first cylinder 415 is mounted on the bracket 414, a motor plate 416 is fixedly connected to a piston rod of the first cylinder 415, a first stepping motor 4161 is fixedly connected to the motor plate 416, and an output shaft of the first stepping motor 4161 penetrates through the motor plate 416 and is fixedly connected to a clamp plate 417. The clamping plate 417 is sequentially provided with a first clamping column 4171, a second clamping column 4172 and a third clamping column 4173 for assisting in clamping the trunnion hanging plate 1. When the material needs to be loaded, the piston rod of the third cylinder 52 extends out to drive the longitudinal working plate 521 to ascend, then the piston rod of the second cylinder 522 extends out to push the clamp 523 to the clamping plate 417, at the moment, the third clamping column 4173 is inserted into the hole part 113, and the first clamping column 4171 and the second clamping column 4172 are respectively abutted against the upper arc surface 111 of the trunnion hanging plate 1, so that three-point positioning is realized, and the possibility of shaking of the trunnion hanging plate 1 in the clamping plate 417 is reduced. After the shaft 12 at one end of the trunnion hanging plate 1 is machined, the first stepping motor 4161 drives the clamp plate 417 to rotate 90 degrees, so that the shaft 12 at the other end of the trunnion hanging plate 1 faces the chuck 34. After the shaft parts 12 at the two ends of the trunnion hanging plate 1 are all processed, the piston rod of the second cylinder 522 at the other end extends out, so that the clamp 523 is positioned below the trunnion hanging plate 1, the piston rod of the third cylinder 52 extends out again, so that the trunnion hanging plate 1 is positioned in the clamp 523, and then the piston rod of the second cylinder 522 retracts, so that the trunnion hanging plate 1 can be taken down.

Referring to fig. 5, the first clamping column 4171, the second clamping column 4172 and the third clamping column 4173 are fixedly connected with a pointed cone 4177 at an end away from the clamp plate 417, the end of the pointed cone 4177 away from the clamp plate 417 is a small end, and when the position of the trunnion hanging plate 1 on the clamp 523 is slightly deviated, the pointed cone 4177 can align the trunnion hanging plate 1. The clamp plate 417 is respectively provided with a placing groove 4174 for placing the first clamping column 4171, the second clamping column 4172 and the third clamping column 4173, the side surfaces of the first clamping column 4171, the second clamping column 4172 and the third clamping column 4173 are respectively and fixedly connected with an inserting rod 4175, the inserting rod 4175 is inserted into the side wall of the placing groove 4174, and a compression spring 4176 is sleeved on the inserting rod 4175. Both ends of the compression spring 4176 abut against the side walls of the placement groove 4174 and the side faces of the clamping posts, respectively. When the ear portion 11 of the trunnion hanging plate 1 has a certain dimensional deviation due to manufacturing, the three clamping columns can compensate the deviation by sliding in the placing groove 4174, and the elastic force of the compression spring 4176 also makes the clamping of the trunnion hanging plate 1 maintained among the three clamping columns.

Referring to fig. 4, a clamping plate 411 is fixedly connected to the table 41, clamping blocks 413 are relatively slidably connected to the clamping plate 411 in the width direction of the frame 2, and first V-shaped grooves 4131 for clamping the shaft 12 of the trunnion suspension plate 1 are symmetrically arranged on the opposite surfaces of the two clamping blocks 413. Still be equipped with the first drive arrangement 412 that is used for driving two clamp splice 413 on the grip block 411, first drive arrangement 412 includes riser 4121, riser 4121 is fixed in the both ends of grip block 411 along frame 2 width direction relatively, fixedly connected with fourth cylinder 4122 on riser 4121, the piston rod of two fourth cylinders 4122 respectively with two clamp splice 413 fixed connection, the piston rod of two fourth cylinders 4122 stretches out simultaneously, can make two clamp splice 413 be close to each other, press from both sides the axial region 12 of trunnion hanging plate 1. The piston rod of the first cylinder 415 extends out to drive the clamping plate 417 to cross between the two clamping blocks 413, the shaft part 12, far away from the threading device 3, on the trunnion hanging plate 1 is positioned between the two clamping blocks 413, the axial line of the shaft part 12 is equal to the central line of the first V-shaped groove 4131 in the vertical direction, at the moment, the piston rod of the fourth cylinder 4122 extends out to control the two clamping blocks 413 to clamp the shaft part 12. The width of the clamping plate 417 is smaller than the width of the ear 11, so that the probability of interference with the clamping plate 417 when the clamping block 413 is clamped is reduced.

Referring to fig. 3 and 4, the guide sleeve 32 is fixedly connected to the threading frame 31, the guide rod 33 is inserted into the guide sleeve 32, the vertical plate 4121 far away from the second stepping motor 422 is fixedly connected to the mounting sleeve 4123, and the mounting sleeve 4123 is rotatably connected to one end of the guide rod 33. The cover is equipped with the pin cover 331 on the guide bar 33, and integrated into one piece has pin 3311 on the pin cover 331, and the one end that pin 3311 kept away from pin cover 331 is located between two clamp blocks 413 along the axial projection of guide bar 33 for when splint 417 drives trunnion link plate 1 and moves to between two clamp blocks 413, play limiting displacement, the control trunnion link plate 1 stretches out the length of clamping block 413. The stop rod sleeve 331 is threadedly connected with a locking bolt 3313, the head of the locking bolt 3313 penetrates through the inner wall of the stop rod sleeve 331, and the guide rod 33 is provided with a guide groove 332 for allowing the head of the locking bolt 3313 to slide along the axial direction of the guide rod 33. The material blocking sleeve can slide on the guide rod 33, the length of the trunnion hanging plate 1 extending out of the clamping block 413 is adjusted, and the material blocking sleeve can be locked through the locking bolt 3313122. The guide sleeve 32 is integrally formed with a guide shaft 321 facing the guide rod 33, one end of the guide groove 332 far away from the mounting sleeve 4123 is provided with an arc groove 333 for the guide shaft 321 to slide, the arc groove 333 is communicated with the guide groove 332, and the axes of the arc groove 333 and the guide rod 33 are mutually inclined. When the guide rod 33 moves, the guide shaft 321 is fixed, and therefore the guide rod 33 rotates while moving. Therefore, when the worktable 41 is located at the clamping position, the stop lever 3311 is located between the clamping block 413 and the chuck 34 for controlling the extension length of the trunnion hanging plate 1; when the table 41 moves toward the chuck 34, the guide rod 33 moves together with the table 41 to rotate the blocking rod 3311 to be located at the top of the chuck 34, thereby reducing the possibility of collision between the blocking rod 3311 and the chuck 34.

Referring to fig. 4, in order to clamp the two clamping blocks 413 immediately after the trunnion hanging plate 1 abuts against the stop lever 3311, a photoelectric sensor 3312 is fixedly connected to one side of the stop lever 3311 facing the clamping block 413, a sensing surface of the photoelectric sensor 3312 faces an end far away from the stop lever sleeve 331, and the photoelectric sensor 3312 is electrically connected to the two fourth cylinders 4122. When the shaft part 12 of one end of the trunnion hanging plate 1 is abutted against the stop lever 3311, light in front of the photoelectric sensor 3312 becomes dark, the photoelectric sensor sends an electric signal to the fourth cylinder 4122, and the fourth cylinder 4122 drives the two clamping blocks 413 to clamp the trunnion hanging plate 1.

The implementation process of the embodiment is as follows: the trunnion hanging plate 1 is placed in the clamp 523, the second V-shaped grooves 5233 are used for two clamping shaft portions 12, and the arc grooves 333 are used for clamping the lower arc surface 112, so that the trunnion hanging plate 1 is stably placed in the clamp 523. When feeding, the piston rod of the third cylinder 52 at one end of the displacement frame 2 in the width direction extends to drive the longitudinal working plate 521 to ascend, then the piston rod of the second cylinder 522 extends to push the clamp 523 to the clamp plate 417, so that the trunnion hanging plate 1 is clamped by the first clamping column 4171, the second clamping column 4172 and the third clamping column 4173, and then the piston rod of the third cylinder 52 retracts again to separate the clamp 523 from the trunnion hanging plate 1.

Then the piston rod of first cylinder 415 stretches out, drives splint 417 and crosses between two clamp blocks 413 to make the 12 terminal surfaces of the axial region of trunnion link plate 1 and pin 3311 butt, photoelectric sensor 3312 senses trunnion link plate 1, sends an electrical signal to two fourth cylinders 4122, and two fourth cylinders 4122 then control two clamp blocks 413 and press from both sides tightly the axial region 12 that the one end of chuck 34 was kept away from to trunnion link plate 1. Subsequently, the second stepping motor 422 is started to drive the gear 421 to rotate, the gear 421 drives the rack 42 to drive the worktable 41 to move towards the chuck 34 for threading, and the overtime and the three clamping columns can also play a role in stabilizing and damping.

After the threading is finished, the piston rod of the fourth cylinder 4122 retracts, the two clamping blocks 413 are loosened, the piston rod of the first cylinder 415 retracts, the clamping plate 417 is brought back, and at the moment, the first stepping motor 4161 is started to drive the clamping plate 417 to rotate 180 degrees, so that the unprocessed shaft part 12 on the trunnion hanging plate 1 faces the chuck 34. Repeating the above-mentioned action of clamping again, threading another axial region 12 of trunnion link plate 1, after the threading finishes and the piston rod of first cylinder 415 retracts, the second cylinder 522 that is located the other end of frame 2 width direction stretches out, remove anchor clamps 523 to the below of trunnion link plate 1, the piston rod of third cylinder 52 stretches out this moment for trunnion link plate 1 is located anchor clamps 523, and the piston rod of second cylinder 522 retracts again, takes out trunnion link plate 1, accomplishes and unloads.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A processing method of a trunnion hanging plate is characterized in that: the processing method comprises the following specific process steps:

s3, forging the middle position of the rod piece by using forging equipment to form an ear part (11);

s4, performing excircle turning on two ends of the rod piece by adopting excircle turning equipment to form a shaft part (12);

s5, punching the plane of the lug part (11) by adopting punching equipment, punching a hole part (113), and punching locking holes (123) on the two shaft parts (12) respectively;

s6, threading the two shaft parts (12) by adopting an automatic clamping threading machine, and respectively processing thread parts (121) on the two shaft parts (12);

s7, performing shot blasting treatment on the blank of the trunnion hanging plate (1) by using a shot blasting machine for 15-25 min, and polishing edges or burrs of the trunnion hanging plate (1);

s8, immersing the polished trunnion hanging plate (1) into a galvanizing bath filled with molten zinc, forming a galvanized layer on the surface of the trunnion hanging plate (1), and air-cooling until the galvanized layer is completely solidified on the surface of the trunnion hanging plate (1);

s9, finally, assembling the threaded parts (121) at the two ends of the trunnion hanging plate (1), the nut 122 and the gasket 125, clamping the locking piece 124 into the locking hole (123), and packaging after the assembly is finished.

2. A threading machine for implementing the machining method of the trunnion scraper in claim 1, comprising a frame (2), wherein a threading device (3) is arranged on one side of the frame (2), a clamping device (4) is arranged on one side of the frame (2) far away from the threading device (3), the clamping device (4) comprises a workbench (41), and a slide rail (21) for sliding the workbench (41) is arranged on the frame (2), characterized in that: a clamping plate (411) is arranged on the workbench (41), clamping blocks (413) are connected to the clamping plate (411) in a relatively sliding mode along the width direction of the rack (2), first V-shaped grooves (4131) are symmetrically formed in opposite surfaces of the two clamping blocks (413), and a first driving device (412) for driving the two clamping blocks (413) is arranged on the clamping plate (411);

the workbench (41) is also provided with a bracket (414), the bracket (414) is provided with a first air cylinder (415), a piston rod of the first air cylinder (415) is provided with a clamping plate (417), the clamping plate (417) is sequentially provided with a first clamping column (4171), a second clamping column (4172) and a third clamping column (4173), the third clamping column (4173) is inserted into the hole part (113), the first clamping column (4171) and the second clamping column (4172) are respectively abutted against the upper arc surface (111) of the trunnion hanging plate (1), the width of the clamping plate (417) is smaller than that of the ear part (11), when the piston rod of the first cylinder (415) extends out, the shaft part (12) of the trunnion hanging plate (1) far away from the threading device (3) is positioned between the two clamping blocks (413), and the axis of the shaft part (12) is as high as the center line of the first V-shaped groove (4131) in the vertical direction.

3. A threading machine according to claim 2, characterized in that: the top wall of the clamping plate (417) is provided with a motor plate (416), the motor plate (416) is fixedly connected with a first stepping motor (4161), and an output shaft of the first stepping motor (4161) is fixedly connected with the clamping plate (417).

4. A threading machine according to claim 3, characterized in that: the material conveying device (5) is arranged on the rack (2), the material conveying device (5) comprises a height lifting plate (51), the height lifting plate (51) is oppositely arranged on the rack (2) along the width direction of the rack (2), a third air cylinder (52) is arranged on the height lifting plate (51), and a longitudinal working plate (521) is arranged at the top of a piston rod of the third air cylinder (52);

be equipped with second cylinder (522) on vertical work board (521), the piston rod orientation of second cylinder (522) the one end of splint (417) is fixed with anchor clamps (523) of shape, anchor clamps (523) include bottom plate (5232) and along bottom plate (5232) length direction curb plate (5231) that set up relatively, bottom plate (5232) with curb plate (5231) fixed connection, be equipped with on bottom plate (5232) and supply constant head tank (5234) that lower arc surface (112) card of trunnion link plate (1) were gone into, the second V-arrangement groove (5233) that supply axial region (12) card to go into are seted up at the top of curb plate (5231).

5. A threading machine according to claim 4, characterized in that: and one ends of the first clamping column (4171), the second clamping column (4172) and the third clamping column (4173) far away from the clamping plate (417) are respectively provided with a pointed cone part (4177).

6. A threading machine according to claim 5, characterized in that: the clamp plate (417) is provided with a placing groove (4174) for placing the first clamping column (4171), the second clamping column (4172) and the third clamping column (4173), the side surfaces of the first clamping column (4171), the second clamping column (4172) and the third clamping column (4173) are respectively and oppositely provided with an inserting rod (4175), the inserting rod (4175) is inserted into the side wall of the placing groove (4174), and a compression spring (4176) is sleeved on the inserting rod (4175).

7. A threading machine according to claim 2, characterized in that: be equipped with mantle fiber frame (31) that is used for installing mantle fiber device (3) on frame (2), be equipped with uide bushing (32) on mantle fiber frame (31), uide bushing (32) interpolation is equipped with guide bar (33), be equipped with installation cover (4123) on clamp plate (411), installation cover (4123) with the one end of guide bar (33) is rotated and is connected, the cover is equipped with pin (3311) cover on guide bar (33), is equipped with pin (3311) on pin cover (331), pin (3311) are kept away from the one end of pin cover (331) is located two along guide bar (33) axial projection between clamp block (413).

8. A threading machine according to claim 7, characterized in that: and a locking bolt (3313) is connected to the stop rod sleeve (331) through a thread, and a guide groove (332) for allowing the locking bolt (3313) to slide along the axial direction of the guide rod (33) is formed in the guide rod (33).

9. A threading machine according to claim 8, wherein: the guide sleeve (32) is equipped with guiding axle (321) towards guide bar (33), the confession is seted up to the one end that the installation cover (4123) was kept away from in guide way (332) gliding arc groove (333) of guiding axle (321), arc groove (333) with guide way (332) intercommunication, arc groove (333) with the axis of guide bar (33) is mutually inclined, works as guiding axle (321) are located when guide way (332), pin (3311) is located press from both sides the place ahead of tight piece (413), works as guiding axle (321) are located arc groove (333) are kept away from when the one end of guide way (332), pin (3311) is located press from both sides the top of tight piece (413).

10. A threading machine according to claim 9, characterized in that: the utility model discloses a clamp piece, including the pin, the pin (3311) orientation one side of pressing from both sides tight piece (413) is equipped with photoelectric sensing ware (3312), photoelectric sensing ware (3312) the response face orientation is kept away from the one end of pin cover (331), photoelectric sensing ware (3312) with first drive arrangement (412) electricity is connected.