A processing method for trapezoidal titanium alloy bar

Abstract

The present invention relates to the technical field of metal plate processing, and in particular to a processing method for a trapezoidal titanium alloy bar, comprising the following steps: blank preparation, extrusion molding, heat treatment, surface treatment, size finishing, quality inspection and packaging and warehousing; the heat treatment equipment for the trapezoidal titanium alloy bar used in the heat treatment process comprises a heating furnace and a placing device, the placing device comprises a cylindrical tube arranged in the heating furnace, a pushing mechanism and a plurality of circumferentially distributed discharge mechanisms are connected to the wall of the cylindrical tube, and a clamping mechanism is connected to the right end of the cylindrical tube; by cooperating with the heating furnace and the placing device, the entire process of heat treatment of the trapezoidal titanium alloy bar can be realized on one device, the number of times the bar is moved is reduced, and the efficiency of heat treatment is improved; the problem that the existing trapezoidal titanium alloy bar needs to be repeatedly clamped by a clamping device and moved in a plurality of heating devices with different functions during the heat treatment process, resulting in low heat treatment efficiency is solved.

Description

Technical Field

[0001] The invention relates to the technical field of metal plate processing, and in particular to a processing method of a trapezoidal titanium alloy bar. Background Art

[0002] Titanium alloy is an alloy material based on titanium and composed of other elements. Titanium alloy has excellent mechanical properties, corrosion resistance and high temperature resistance; trapezoidal titanium alloy rod is a titanium alloy material with a special shape and its cross-section is trapezoidal; trapezoidal titanium alloy rod combines the excellent properties of titanium alloy with a specific geometric shape and is widely used in aerospace, medical, chemical, sports equipment and automotive industries.

[0003] The current trapezoidal titanium alloy bar production method includes the steps of blank preparation, extrusion molding, heat treatment, surface treatment, size finishing, quality inspection and packaging and warehousing, among which heat treatment is one of the most important steps. The current heat treatment method of the trapezoidal titanium alloy bar is to first preheat it in a preheating furnace at 300-400℃ for a certain time, then move the preheated bar into a solution treatment furnace at 900-950℃ for solution treatment for a certain time, then quickly cool it to 500-600℃ for aging treatment, and finally slowly cool it. However, the existing trapezoidal titanium alloy bar During the heat treatment process of the material, multiple heating devices with different functions are used to heat treat the rod. The rod needs to be repeatedly clamped by the clamping device and moved in multiple heating devices, thereby increasing the clamping steps of the rod and the clamping device, reducing the efficiency of the heat treatment, and during the cooling process of the rod during the heat treatment, the rod is usually directly placed in the air cooling chamber for cooling. A large number of rods are in a concentrated state, resulting in poor circulation of cold air inside a large number of rods, increasing the cooling time of the rods, and the internal structure may also change due to uneven cooling of the rods. Summary of the invention

[0004] Based on this, it is necessary to provide a processing method for a trapezoidal titanium alloy bar, which can solve the problems existing in the heat treatment of the trapezoidal titanium alloy bar mentioned above.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme, a method for processing a trapezoidal titanium alloy bar, and the specific method is as follows: S1, blank preparation: select a titanium alloy blank that meets the requirements.

[0006] S2. Extrusion molding: Put the titanium alloy billet into the extrusion equipment, and extrude it through the extrusion equipment to obtain a preliminarily formed trapezoidal rod.

[0007] S3. Heat treatment: The initially formed trapezoidal bars are heat treated by heat treatment equipment.

[0008] S4. Surface treatment: Surface treatment is performed on the trapezoidal bars after heat treatment.

[0009] S5. Dimensional finishing: Dimensional finishing is performed on the trapezoidal bars after surface treatment.

[0010] S6. Quality inspection: Carry out quality inspection on the processed trapezoidal bars.

[0011] S7. Packing and warehousing: The qualified trapezoidal bars are packed and stored in the warehouse.

[0012] Among them, S3 is completed with the heat treatment equipment of trapezoidal titanium alloy bars, and the heat treatment equipment of trapezoidal titanium alloy bars includes: a heating furnace.

[0013] It also includes a placing device, which is arranged on the heating furnace. The placing device includes a cylindrical tube arranged in the heating furnace, a plurality of circumferentially evenly distributed discharge mechanisms are connected to the wall of the cylindrical tube, a clamping mechanism is connected to the right end of the cylindrical tube, and a pushing mechanism is connected to the cylindrical tube.

[0014] It also includes an air cooling device, which is arranged on the left side of the heating furnace. The air cooling device includes an air cooling frame arranged on the left side of the heating furnace. Sliding openings are opened on the front and rear frame walls of the air cooling frame. Two mesh arc plates symmetrically distributed up and down are installed on the inner wall of the air cooling frame. A plurality of air intake pipes distributed in a rectangular shape are installed through the left frame wall of the air cooling frame. A traction mechanism is connected to the air cooling frame.

[0015] According to an embodiment of the present invention, the placement device also includes a first sealing cover connected to the clamping mechanism, a first hydraulic push rod is connected to the clamping mechanism, a second sealing cover is slidingly sleeved at the left end of the cylindrical tube, and a blocking ring is installed on the outer ring surface of the cylindrical tube near the left end.

[0016] According to an embodiment of the present invention, the discharge mechanism includes a lifting plate that slides through and is connected to the annular tube wall of the cylindrical tube, and a waist-shaped hole located inside the cylindrical tube is opened on the lifting plate. A strip rod is installed at one end of the lifting plate away from the axis of the cylindrical tube, and limit frames are installed at both ends of the left and right ends of the strip rod. A triangular protrusion is integrally formed on the inner end of the limit frame close to the frame wall of the cylindrical tube, and a clamping branch chain is connected to the frame wall of the limit frame away from the cylindrical tube.

[0017] According to an embodiment of the present invention, the compression branch chain includes an adjusting screw threadedly connected to the wall of the limit frame away from the cylindrical tube frame, one end of the adjusting screw located inside the limit frame is rotatably connected to a compression strip, and a guide rod is installed at one end of the compression strip close to the limit frame away from the cylindrical tube frame wall, and the guide rod slides through the frame wall of the limit frame away from the cylindrical tube.

[0018] According to an embodiment of the present invention, the clamping mechanism includes a cylindrical rod installed at the right end of the cylindrical tube, a sliding groove is symmetrically opened on the annular surface of the cylindrical rod along its axis, a clamping branch chain is connected in the sliding groove, a clamping sleeve is provided on the sliding sleeve on the surface of the cylindrical rod, the outer ring surface of the clamping sleeve is fixedly connected to the first sealing cover, a clamping ring groove is opened on the inner ring surface of the clamping sleeve, and the right end of the clamping sleeve is fixedly connected to the first hydraulic push rod.

[0019] According to an embodiment of the present invention, the snap-in branch chain includes a snap-in block slidably connected in the sliding groove, a connecting spring is installed between the snap-in block and the inner wall of the sliding groove, and a semi-cylindrical protrusion is integrally formed on one end of the snap-in block away from the axis of the cylindrical rod.

[0020] According to an embodiment of the present invention, the pushing mechanism includes a connecting ring installed at the left end of the cylindrical tube, a stepped columnar rod is arranged inside the connecting ring, the stepped columnar rod is slidably penetrated and cooperated with the left end wall of the cylindrical tube, a circular plate is installed at the left end of the stepped columnar rod, a return spring is installed between the right end of the circular plate and the left end of the cylindrical tube, and a plurality of circumferentially evenly distributed pushing branches are installed at the right end of the stepped columnar rod.

[0021] According to an embodiment of the present invention, the pushing branch chain includes a pushing column slidably inserted into the waist-shaped hole, and positioning plates are installed at both ends of the pushing column, and the positioning plates are fixedly connected to the right end of the stepped columnar rod.

[0022] According to an embodiment of the present invention, the traction mechanism includes a second hydraulic push rod installed at the lower end of the air-cooled frame, a U-shaped frame with an upward opening is installed at the right end of the second hydraulic push rod, the opposite ends of the two vertical sections of the U-shaped frame are connected to clamping branches, and the opposite ends of the two vertical sections of the U-shaped frame are also installed with rectangular bars, and one end of the rectangular bar away from the vertical section of the U-shaped frame is fixedly connected to the second sealing cover.

[0023] According to an embodiment of the present invention, the clamping branch chain includes a third hydraulic push rod installed on the inner end surface of the vertical section of the U-shaped frame, a connecting rod is installed at one end of the third hydraulic push rod away from the vertical section of the U-shaped frame, and a clamping arc plate with an opening away from the connecting rod is installed at one end of the connecting rod away from the third hydraulic push rod.

[0024] In summary, the present invention includes the following beneficial technical effects: 1. The heating furnace and the placement device used in the present invention can cooperate to realize the entire process of heat treatment of trapezoidal titanium alloy bars on the same equipment, and reduce the number of times the trapezoidal titanium alloy bars are moved, thereby improving the efficiency of heat treatment of trapezoidal titanium alloy bars.

[0025] 2. The placement device used in the present invention cooperates with the air cooling device, and can reciprocate and disperse the concentrated trapezoidal titanium alloy bars when the trapezoidal titanium alloy bars are cooled, so as to facilitate the circulation of cold air among multiple titanium alloy bars and shorten the distance between multiple titanium alloy bars and the cold air source, thereby improving the cooling efficiency of multiple titanium alloy bars and avoiding uneven cooling of the titanium alloy bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0027] Figure 1 A flow chart of a method for processing a trapezoidal titanium alloy bar of the present invention is shown.

[0028] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0029] Figure 3 A schematic diagram of the second viewing angle stereoscopic structure of the present invention is shown.

[0030] Figure 4 A front view of the present invention is shown.

[0031] Figure 5 A side view of the present invention is shown.

[0032] Figure 6 Shows Figure 5 Sectional view of AA.

[0033] Figure 7 Shows Figure 6 Magnified view of the middle N region.

[0034] Figure 8 Shows Figure 6 Magnified view of the X area in the middle.

[0035] Fig. 9 A three-dimensional structural schematic diagram of the air cooling device of the present invention is shown.

[0036] Fig.10 A cross-sectional view of a placement device according to the present invention is shown.

[0037] The above drawings include the following reference numerals: 1. heating furnace; 2. placing device; 21. cylindrical tube; 22. material discharging mechanism; 221. lifting plate; 222. bar rod; 223. waist-shaped hole; 224. limit frame; 225. clamping branch chain; 2251. adjusting screw; 2252. clamping strip; 2253. guide rod; 23. clamping mechanism; 231. cylindrical rod; 232. sliding groove; 233. clamping branch chain; 2331. clamping block; 2332. connecting spring; 234. clamping sleeve; 24. pushing mechanism; 241. connecting ring; 2 42. Step columnar rod; 243. Round plate; 244. Return spring; 245. Pushing chain; 2451. Positioning plate; 2452. Pushing column; 25. First sealing cover; 26. Second sealing cover; 27. First hydraulic push rod; 28. Blocking ring; 3. Air cooling device; 31. Air cooling frame; 32. Mesh arc plate; 33. Air intake pipe; 34. Traction mechanism; 341. Second hydraulic push rod; 342. U-shaped frame; 343. Clamping chain; 3431. Third hydraulic push rod; 3432. Connecting rod; 3433. Clamping arc plate; 344. Rectangular bar. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0039] In order to achieve the above object, the present invention adopts the following technical solutions: Figure 1-Figure 5 , a method for processing a trapezoidal titanium alloy bar, the specific method is as follows: S1, blank preparation: select a titanium alloy blank that meets the requirements, so that the size and shape meet the subsequent processing requirements.

[0040] S2. Extrusion molding: Put the titanium alloy billet into an extrusion device, and perform extrusion molding through the extrusion device to obtain a preliminarily formed trapezoidal rod. The extrusion device is a prior art.

[0041] S3. Heat treatment: The initially formed trapezoidal bars are heat treated by heat treatment equipment to eliminate internal stress and improve the mechanical properties of the material.

[0042] S4. Surface treatment: The trapezoidal bars after heat treatment are subjected to surface treatment, such as grinding and polishing, to improve the surface quality and aesthetics.

[0043] S5. Dimensional finishing: Dimensional finishing is performed on the trapezoidal bars after surface treatment to ensure that the dimensional accuracy and shape accuracy meet the requirements.

[0044] S6. Quality inspection: Carry out quality inspection on the processed trapezoidal bars, including inspection of size, shape, mechanical properties, etc. to ensure product quality.

[0045] S7. Packing and warehousing: The qualified trapezoidal bars are packed and stored in the warehouse.

[0046] Among them, S3 is completed by using a heat treatment equipment for trapezoidal titanium alloy bars, and the heat treatment equipment for trapezoidal titanium alloy bars includes a heating furnace 1.

[0047] See also Figure 2 , Figure 3 and Figure 6 The heat treatment equipment also includes a placing device 2, which is arranged on the heating furnace 1. The placing device 2 includes a cylindrical tube 21 arranged in the heating furnace 1, and a plurality of circumferentially evenly distributed discharge mechanisms 22 are connected to the tube wall of the cylindrical tube 21. A clamping mechanism 23 is connected to the right end of the cylindrical tube 21, and a pushing mechanism 24 is connected to the cylindrical tube 21. The placing device 2 also includes a first sealing cover 25 connected to the clamping mechanism 23, and a first hydraulic push rod 27 is connected to the clamping mechanism 23. A second sealing cover 26 is slidably sleeved at the left end of the cylindrical tube 21, and a blocking ring 28 is installed on the outer ring surface of the cylindrical tube 21 near the left end.

[0048] During specific operation, the heating furnace 1 is a resistance heating device, and the heating temperature of the heating furnace 1 is controlled by electric current. This is the prior art. A heat insulation cotton is arranged in the middle of the heating furnace 1. The heating furnace 1 is fixed in the working position before operation, and then the first hydraulic push rod 27 is fixed in the working position through the existing fixing device and connected to the existing hydraulic pump. Initially, the first hydraulic push rod 27 drives the first sealing cover 25 to be in a position away from the heating furnace 1 through the clamping mechanism 23, and the cylindrical tube 21, the discharge mechanism 22 and the pushing mechanism 24 are all in a separated state from the clamping mechanism 23.

[0049] See also Figure 6 , Figure 8 and Fig.10 The discharge mechanism 22 includes a lifting plate 221 that slides through and is connected to the annular tube wall of the cylindrical tube 21. The lifting plate 221 is provided with a waist-shaped hole 223 located inside the cylindrical tube 21. A strip rod 222 is installed at one end of the lifting plate 221 away from the axis of the cylindrical tube 21. Limiting frames 224 are installed at both left and right ends of the strip rod 222. A triangular protrusion is integrally formed at the inner end of the limit frame 224 close to the frame wall of the cylindrical tube 21. A clamping branch chain 225 is connected to the frame wall of the limit frame 224 away from the cylindrical tube 21.

[0050] See also Figure 6 , Figure 8 and Fig.10 The clamping branch chain 225 includes an adjusting screw 2251 threadedly connected to the frame wall of the limit frame 224 away from the cylindrical tube 21. One end of the adjusting screw 2251 located inside the limit frame 224 is rotatably connected to a clamping strip 2252. The end of the clamping strip 2252 close to the frame wall of the limit frame 224 away from the cylindrical tube 21 is installed with a guide rod 2253. The guide rod 2253 slides through the frame wall of the limit frame 224 away from the cylindrical tube 21.

[0051] During the specific work, multiple titanium alloy bars that need to be processed are selected and placed in multiple limit frames 224 respectively. Two limit frames 224 on the same strip rod 222 limit one titanium alloy bar, and then multiple adjusting screws 2251 are rotated in sequence. The adjusting screws 2251 drive the clamping strip 2252 to move along the guide rod 2253 toward the direction of the titanium alloy bar and fit closely with it, thereby realizing the function of limiting the titanium alloy bar. The triangular protrusion on the limit frame 224 can effectively reduce the contact area between the titanium alloy bar and the limit frame 224, thereby effectively reducing the impact on the processing of the titanium alloy bar.

[0052] See also Figure 2 , Figure 6 and Figure 7 The clamping mechanism 23 includes a cylindrical rod 231 installed at the right end of the cylindrical tube 21, and a sliding groove 232 is symmetrically opened on the annular surface of the cylindrical rod 231 along its axis, and a clamping branch chain 233 is connected in the sliding groove 232. A clamping sleeve 234 is slidingly sleeved on the surface of the cylindrical rod 231, and the outer annular surface of the clamping sleeve 234 is fixedly connected to the first sealing cover 25. A clamping ring groove is opened on the inner annular surface of the clamping sleeve 234, and the right end of the clamping sleeve 234 is fixedly connected to the first hydraulic push rod 27.

[0053] See also Figure 7 The snap-in branch chain 233 includes a snap-in block 2331 slidably connected to the sliding groove 232, a connecting spring 2332 is installed between the snap-in block 2331 and the inner wall of the sliding groove 232, and a semi-cylindrical protrusion is integrally formed at one end of the snap-in block 2331 away from the axis of the cylindrical rod 231.

[0054] During specific operation, after multiple titanium alloy bars are installed and positioned, the cylindrical tube 21 is inserted into the clamping sleeve 234 through the cylindrical rod 231 through the existing clamping claws, and the two clamping blocks 2331 on the cylindrical rod 231 are clamped in the clamping ring groove of the clamping sleeve 234 to achieve the connection between the cylindrical rod 231 and the clamping sleeve 234, thereby achieving the preliminary positioning of the cylindrical tube 21, and then starting the first hydraulic push rod 27, the first hydraulic push rod 27 drives the cylindrical rod 231 and the cylindrical tube 21 to move through the clamping sleeve 234, and the cylindrical tube 21 drives the multiple titanium alloy bars to move into the heating furnace 1 through multiple discharge mechanisms 22, until the clamping sleeve 234 drives the first sealing cover 25 to move to the right end of the heating furnace 1 and seals the right end of the heating furnace 1, and then the operation of the first hydraulic push rod 27 is stopped.

[0055] See also Figure 2 , Figure 6 and Fig. 9 The heat treatment equipment also includes an air cooling device 3, which is arranged on the left side of the heating furnace 1. The air cooling device 3 includes an air cooling frame 31 arranged on the left side of the heating furnace 1, and a traction mechanism 34 is connected to the air cooling frame 31.

[0056] See also Figure 6 and Fig. 9 The traction mechanism 34 includes a second hydraulic push rod 341 installed at the lower end of the air-cooled frame 31, and a U-shaped frame 342 with an upward opening is installed at the right end of the second hydraulic push rod 341. The opposite ends of the two vertical sections of the U-shaped frame 342 are connected to clamping branches 343, and the opposite ends of the two vertical sections of the U-shaped frame 342 are also installed with rectangular bars 344. The end of the rectangular bar 344 away from the vertical section of the U-shaped frame 342 is fixedly connected to the second sealing cover 26.

[0057] See also Figure 6 and Fig. 9 The clamping branch chain 343 includes a third hydraulic push rod 3431 installed on the inner end surface of the vertical section of the U-shaped frame 342, and a connecting rod 3432 is installed at one end of the third hydraulic push rod 3431 away from the vertical section of the U-shaped frame 342, and a clamping arc plate 3433 with an opening away from the connecting rod 3432 is installed at one end of the connecting rod 3432 away from the third hydraulic push rod 3431.

[0058] During specific operation, the second hydraulic push rod 341 and the third hydraulic push rod 3431 are connected to the existing hydraulic pump before operation. Initially, the second hydraulic push rod 341 is at the maximum stroke position. The second hydraulic push rod 341 drives the second sealing cover 26 to be located at the left end of the heating furnace 1 through the two rectangular bars 344 on the U-shaped frame 342, and seals the left end of the heating furnace 1. During operation, in the process of the cylindrical tube 21 moving to the inside of the heating furnace 1, the cylindrical tube 21 drives the blocking ring 28 to gradually move toward the second sealing cover 26 until the cylindrical tube 21 passes through the middle of the second sealing cover 26 and the blocking ring 28 is tightly attached to the second sealing cover 26. At this time, the first sealing cover 25 moves to the right end of the heating furnace 1 and seals the right end of the heating furnace 1. The first sealing cover 25 cooperates with the second sealing cover 26 to realize the function of sealing the heating furnace 1.

[0059] Start the heating furnace 1, raise the temperature inside the heating furnace 1 to 300-400°C, preheat the titanium alloy rod, wait for two hours, raise the temperature inside the heating furnace 1 to 900-950°C, and solution treat the titanium alloy rod for 1-2 hours.

[0060] See also Fig. 9 The front and rear frame walls of the air cooling frame 31 are provided with sliding openings, the inner wall of the air cooling frame 31 is provided with two mesh arc plates 32 symmetrically distributed up and down, and the left frame wall of the air cooling frame 31 is penetrated by a plurality of air intake pipes 33 distributed in a rectangular shape.

[0061] During specific operation, initially, multiple air inlet pipes 33 are respectively connected to the existing air cooling equipment. After the solid solution of multiple titanium alloy bars is completed, the air cooling equipment is started. The air cooling equipment injects cold air into the space between the two mesh arc plates 32 and the inner wall of the air cooling frame 31 through the multiple air inlet pipes 33. The cold air is then discharged through the holes on the mesh arc plates 32 to cool the multiple solid solution titanium alloy bars. At the same time, the two third hydraulic push rods 3431 are started. The two third hydraulic push rods 3431 drive the two clamping arc plates 3433 to move toward the direction of the cylindrical tube 21 through the two connecting rods 3432 and clamp the cylindrical tube 21 to limit the position. Then the second hydraulic push rod 341 is started. The second hydraulic push rod 341 drives the two third hydraulic push rods 3431 to move through the U-shaped frame 342. The hydraulic push rod 3431 drives the cylindrical tube 21 to move into the air-cooling frame 31 through two clamping arc plates 3433. The cylindrical tube 21 drives multiple titanium alloy bars to move into the air-cooling frame 31 through multiple discharge mechanisms 22. The two sliding openings on the air-cooling frame 31 are used for the movement of the two third hydraulic push rods 3431. The movement of the cylindrical tube 21 drives the cylindrical rod 231 to move at the same time. The cylindrical rod 231 drives the two clamping blocks 2331 to move through the two sliding grooves 232. The two clamping blocks 2331 contact the clamping ring grooves of the clamping sleeve 234 and are forced to squeeze the two connecting springs 2332. The two connecting springs 2332 are forced to shrink and drive the two clamping blocks 2331 to enter the two sliding grooves 232, thereby releasing the limiting position of the clamping sleeve 234 on the cylindrical rod 231.

[0062] See also Figure 6 and Fig.10 The pushing mechanism 24 includes a connecting ring 241 installed at the left end of the cylindrical tube 21, a stepped columnar rod 242 is arranged inside the connecting ring 241, the stepped columnar rod 242 slides through the left end wall of the cylindrical tube 21, a circular plate 243 is installed at the left end of the stepped columnar rod 242, a return spring 244 is installed between the right end of the circular plate 243 and the left end of the cylindrical tube 21, and a plurality of circumferentially evenly distributed pushing branches 245 are installed at the right end of the stepped columnar rod 242.

[0063] See also Figure 6 and Fig.10 The pushing branch chain 245 includes a pushing column 2452 that is slidably inserted into the waist-shaped hole 223 , and positioning plates 2451 are installed at both ends of the pushing column 2452 , and the positioning plate 2451 is fixedly connected to the right end of the stepped columnar rod 242 .

[0064] During specific operation, after the cylindrical tube 21 moves into the air-cooling frame 31, the cylindrical tube 21 continues to move until the cylindrical tube 21 drives the circular plate 243 to be in close contact with the vertical end wall of the air-cooling frame 31 through the return spring 244. At this time, all the titanium alloy bars enter the air-cooling frame 31, and the cold air quickly cools the multiple titanium alloy bars. At this time, the second hydraulic push rod 341 starts to drive the U-shaped frame 342 to reciprocate, and the U-shaped frame 342 drives the two third hydraulic push rods 3431 to reciprocate. The two third hydraulic push rods 3431 drive the cylindrical tube 21 to reciprocate toward the vertical end wall of the air-cooling frame 31 through the two clamping arc plates 3433. The circular plate 243 is forced to drive the stepped columnar rod 242 to reciprocate in the cylindrical tube 21 and simultaneously reverse the return spring 244. Re-extrusion, the stepped columnar rod 242 drives the multiple pushing columns 2452 to slide back and forth in the corresponding waist-shaped holes 223 through the multiple positioning plates 2451, and the pushing columns 2452 push the waist-shaped holes 223 back and forth. The waist-shaped holes 223 are forced to drive the lifting plate 221 to move back and forth, and the lifting plate 221 drives the titanium alloy rods to move back and forth toward the mesh arc plate 32 through the strip rods 222 and the two limit frames 224. At this time, the multiple titanium alloy rods are in a state of repeated switching between dispersion and gathering, which facilitates the circulation of cold air between the multiple titanium alloy rods, shortens the distance between the multiple titanium alloy rods and the cold air source, improves the cooling efficiency of the multiple titanium alloy rods, and cools the temperature inside the heating furnace 1 to 500-600℃ while the multiple titanium alloy rods are cooled.

[0065] After the plurality of titanium alloy bars are cooled, the second hydraulic push rod 341 drives the U-shaped frame 342 to reset, the second hydraulic push rod 341 moves to the maximum stroke distance, the U-shaped frame 342 drives the two third hydraulic push rods 3431 to move, and the two third hydraulic push rods 3431 drive the cylindrical tube 21 to move into the heating furnace 1 through the two clamping arc plates 3433 until the U-shaped frame 342 drives the second sealing cover 26 to re-seal the right end of the heating furnace 1 through the two rectangular bars 344, and then drives the two clamping arc plates 3433 through the two third hydraulic push rods 3431 and the two connecting rods 3432. 3 is separated from the cylindrical tube 21, and then the heating furnace 1 performs aging treatment on the plurality of titanium alloy bars. After the treatment for 2-8 hours, the heating furnace 1 is closed, and the first hydraulic push rod 27 is started. The first hydraulic push rod 27 drives the cylindrical rod 231 and the cylindrical tube 21 to move through the clamping sleeve 234. The cylindrical tube 21 drives the plurality of titanium alloy bars to move out of the heating furnace 1 through the plurality of lifting plates 221, the plurality of strip rods 222 and the plurality of limit frames 224. After the plurality of titanium alloy bars are automatically cooled to room temperature, the plurality of titanium alloy bars are taken out from the limit frames 224, and the heat treatment of the titanium alloy bars is completed.

[0066] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0067] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for processing a trapezoidal titanium alloy bar, characterized in that: The specific method is as follows: S1. Billet preparation: Select titanium alloy billets that meet the requirements; S2, extrusion molding: placing the titanium alloy billet into an extrusion device, and extruding the billet through the extrusion device to obtain a preliminarily formed trapezoidal bar; S3. Heat treatment: The initially formed trapezoidal bars are heat treated by heat treatment equipment; S4, surface treatment: surface treatment of the trapezoidal bars after heat treatment; S5. Dimensional finishing: Dimensional finishing is performed on the trapezoidal bars after surface treatment; S6. Quality inspection: Conduct quality inspection on the processed trapezoidal bars; S7, Packing and warehousing: Pack the qualified trapezoidal bars and store them in the warehouse; Among them, S3 is completed with the heat treatment equipment of trapezoidal titanium alloy bars, and the heat treatment equipment of trapezoidal titanium alloy bars includes a heating furnace; A placing device is arranged on the heating furnace, the placing device comprises a cylindrical tube arranged in the heating furnace, a plurality of circumferentially evenly distributed discharging mechanisms are connected to the wall of the cylindrical tube, a clamping mechanism is connected to the right end of the cylindrical tube, and a pushing mechanism is connected to the cylindrical tube; An air cooling device is arranged on the left side of the heating furnace, and the air cooling device includes an air cooling frame arranged on the left side of the heating furnace, and sliding openings are opened on the front and rear frame walls of the air cooling frame, and two mesh arc plates are installed on the inner wall of the air cooling frame, and a plurality of air inlet pipes are installed through the left frame wall of the air cooling frame, and a traction mechanism is connected to the air cooling frame; The pushing mechanism comprises a connecting ring installed at the left end of the cylindrical tube, a stepped columnar rod is arranged inside the connecting ring, the stepped columnar rod is slidably penetrated and matched with the left end wall of the cylindrical tube, a circular plate is installed at the left end of the stepped columnar rod, a return spring is installed between the right end of the circular plate and the left end of the cylindrical tube, and a plurality of circumferentially evenly distributed pushing branches are installed at the right end of the stepped columnar rod; The material discharge mechanism comprises a lifting plate that is slidably connected to the annular wall of the cylindrical tube, and a waist-shaped hole is formed on the lifting plate and located inside the cylindrical tube; the pushing branch chain comprises a pushing column that is slidably inserted into the waist-shaped hole; The placing device cooperates with the air cooling device to perform a reciprocating dispersion treatment on the concentrated trapezoidal titanium alloy bars when the trapezoidal titanium alloy bars are cooled.

2. The method for processing a trapezoidal titanium alloy bar according to claim 1, characterized in that: The placement device also includes a first sealing cover connected to the clamping mechanism, the clamping mechanism is connected to a first hydraulic push rod, a second sealing cover is slidably sleeved at the left end of the cylindrical tube, and a blocking ring is installed on the outer ring surface of the cylindrical tube near the left end.

3. The method for processing a trapezoidal titanium alloy bar according to claim 1, characterized in that: A strip rod is installed at one end of the lifting plate away from the axis of the cylindrical tube, and limit frames are installed at both ends of the strip rod. A triangular protrusion is integrally formed on the inner end of the limit frame close to the frame wall of the cylindrical tube, and a clamping branch chain is connected to the frame wall of the limit frame away from the cylindrical tube.

4. The method for processing a trapezoidal titanium alloy bar according to claim 3, characterized in that: The compression branch chain includes an adjusting screw threadedly connected to the wall of the limit frame away from the cylindrical tube frame. One end of the adjusting screw located inside the limit frame is rotatably connected to a compression strip. A guide rod is installed at one end of the compression strip close to the limit frame away from the cylindrical tube frame wall. The guide rod slides through the frame wall of the limit frame away from the cylindrical tube.

5. The method for processing a trapezoidal titanium alloy bar according to claim 2, characterized in that: The clamping mechanism includes a cylindrical rod installed at the right end of the cylindrical tube, a sliding groove is symmetrically provided on the annular surface of the cylindrical rod along its axis, a clamping branch chain is connected in the sliding groove, a clamping sleeve is provided on the sliding sleeve of the surface of the cylindrical rod, the outer ring surface of the clamping sleeve is fixedly connected to the first sealing cover, a clamping ring groove is provided on the inner ring surface of the clamping sleeve, and the right end of the clamping sleeve is fixedly connected to the first hydraulic push rod.

6. The method for processing a trapezoidal titanium alloy bar according to claim 5, characterized in that: The clamping branch chain comprises a clamping block slidably connected in the sliding groove, a connecting spring is installed between the clamping block and the inner wall of the sliding groove, and a semi-cylindrical protrusion is integrally formed at one end of the clamping block away from the axis of the cylindrical rod.

7. The method for processing a trapezoidal titanium alloy bar according to claim 3, characterized in that: Positioning plates are installed at both ends of the pushing column, and the positioning plates are fixedly connected to the right end of the stepped columnar rod.

8. The method for processing a trapezoidal titanium alloy bar according to claim 2, characterized in that: The traction mechanism includes a second hydraulic push rod installed at the lower end of the air-cooled frame, a U-shaped frame with an upward opening is installed at the right end of the second hydraulic push rod, the opposite ends of the two vertical sections of the U-shaped frame are connected to clamping branches, and the opposite ends of the two vertical sections of the U-shaped frame are also installed with rectangular bars, and one end of the rectangular bar away from the vertical section of the U-shaped frame is fixedly connected to the second sealing cover.

9. The method for processing a trapezoidal titanium alloy bar according to claim 8, characterized in that: The clamping branch chain includes a third hydraulic push rod installed on the inner end surface of the vertical section of the U-shaped frame, a connecting rod is installed at one end of the third hydraulic push rod away from the vertical section of the U-shaped frame, and a clamping arc plate with an opening away from the connecting rod is installed at one end of the connecting rod away from the third hydraulic push rod.

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