Titanium alloy workpiece forming method and system

Abstract

The invention relates to a titanium alloy workpiece forming method and system, belongs to the technical field of casting, and solves the problems that in the prior art, after titanium alloy casting, the cutting and grinding efficiency of a casting head is low, and cuttings and abrasive dust are not easy to treat after being mixed. The method comprises the following steps: step 1, casting and forming a titanium alloy; 2, a casting head of the titanium alloy casting is cut and ground; and 3, the titanium alloy casting is further machined. The cutting and grinding efficiency of the casting head can be improved, and cuttings and abrasive dust are treated in a classified mode.

Description

Technical Field

[0001] The present invention relates to the field of casting technology, and in particular to a titanium alloy part forming method and system. Background Art

[0002] Titanium alloy is a high-temperature alloy. During the casting process of titanium alloy castings, a large number of pores appear inside the castings, which cannot be solved by hot isostatic pressing. At the same time, when the castings solidify and shrink, the thick and large parts cannot be compensated in time, forming large shrinkage cavities.

[0003] After casting, the risers need to be cut and ground. To improve processing efficiency, cutting and grinding are often performed as a single process. However, the transition between cutting and grinding can cause pauses and waiting times for various reasons, which can affect processing efficiency, reduce production efficiency, and increase processing cycle time. Because the chips and grinding chips in integrated cutting and grinding equipment are mixed, but the chips and grinding chips have different shapes, the mixed chips and grinding chips are difficult to sort, recycle, and handle during post-processing cleaning and processing due to their different shapes and materials. Summary of the Invention

[0004] In view of the above analysis, the embodiments of the present invention aim to provide a titanium alloy part forming method and system to solve the current problems of low efficiency in cutting and grinding of risers after titanium alloy casting, and difficulty in handling mixed chips and grinding chips.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] One aspect of the present invention provides a method for forming a titanium alloy part, comprising the following steps:

[0007] Step 1: Titanium alloy casting;

[0008] Step 2: Cutting and grinding the pouring and riser of titanium alloy castings;

[0009] Step 3: The titanium alloy casting is further machined and shaped.

[0010] Furthermore, the step 1 includes:

[0011] Step 1.1: Pour the titanium alloy solution from the crucible into the mold;

[0012] Step 1.2: compacting the unsolidified titanium alloy solution;

[0013] Step 1.3: Casting of titanium alloy parts.

[0014] Furthermore, in step 1.1, the vacuum consumable electrode shell furnace has a rotating shaft, and the crucible is set on the rotating shaft; in the first cycle, the rotating shaft rotates forward to pour the molten metal in the crucible into the mold; the rotating shaft rotates backward to reset the crucible.

[0015] Furthermore, the compaction conditions in step 1.2 are as follows: in the second cycle, a casting auxiliary device is used for compaction, the temperature of the molten metal is 930°C-1750°C when the casting auxiliary device presses down, the pressure applied by the casting auxiliary device to the molten metal or the incompletely solidified casting is 45000Pa-90000Pa, and the holding time is 5min-7min.

[0016] Furthermore, the step 1.2 includes:

[0017] Step 1.2.1: The pressing rod of the casting auxiliary device moves to above the molten metal in the mold, and the rotating rod rotates until the end is located below the end of the pressing rod;

[0018] Step 1.2.2: Rotate the rod to push the end of the pressing rod upward, and press the other end of the pressing rod downward to press the molten metal.

[0019] Furthermore, a rotating rod is radially arranged on the output shaft, and the length direction of the rotating rod is perpendicular to the axis. The rotating rod pushes the pressure rod upward under the rotation of the output shaft.

[0020] Furthermore, the step 2 specifically includes:

[0021] Step 2.1: Switching operation between sprue and riser cutting and grinding of titanium alloy castings;

[0022] Step 2.2: Cutting chips and grinding chips are collected by waste chip collection device.

[0023] Furthermore, the step 2.1 specifically includes:

[0024] Step 2.1.1: The tool assembly of the cutting and grinding device is located at the cutting position to cut the pouring and riser of the casting;

[0025] Step 2.1.2: The cutting tool of the tool assembly is retracted, and the tool assembly moves to the grinding station to grind the pouring riser of the casting.

[0026] Furthermore, in step 2.2, the waste collection device includes a filter screen and a dust collecting hopper arranged obliquely in the length direction, as well as an impact structure and a dumping structure; the filter screen is vertically arranged on the upper part of the dust collecting hopper, and the impact structure and the dumping structure are respectively arranged on both sides of the filter screen.

[0027] Furthermore, in the step 2.2, the chips and grinding classification are collected by a waste chip collection device, specifically including:

[0028] Step 2.2.1: The chips remain on the filter screen and the grinding chips are filtered into the dust hopper;

[0029] Step 2.2.2: After the grinding chips enter the dust hopper, they are collected by the dust collector;

[0030] Step 2.2.3: The impact structure impacts the filter screen, causing the chips in the filter screen to flow down the slope into the chip collecting bucket; the chips that do not flow down are dumped into the collection bucket through the dumping structure.

[0031] Furthermore, in step 2.1.1, the cutting method of the cutting tool is: the cam of the cam assembly in the cutting and grinding device rotates, the arc profile of the cam presses down the roller assembly, and the roller assembly drives the tool assembly to descend, so that the cutting tool approaches the casting riser.

[0032] Furthermore, the cutting tool adjustment structure of the cutting tool is used to adjust the cutting tool to the pouring spout of the casting to perform cutting processing on the pouring spout.

[0033] Furthermore, in step 2.1.2, the tool assembly moves to the grinding station, specifically including:

[0034] The cam profile is separated from the roller, and the roller is reset under the reset structure, driving the tool assembly to reset. The roller assembly and the tool assembly move along the guide rail with the slider to the second limit block.

[0035] Furthermore, the tool performs grinding processing on the pouring head of the casting, specifically:

[0036] The cam rotates, and the cam's arc profile presses down on the roller assembly, which drives the tool down, bringing the grinding tool close to the titanium alloy casting's riser. Using the grinding tool adjustment mechanism, the grinding tool is lowered to the titanium alloy casting's riser for grinding.

[0037] Furthermore, in 2.2.3, the impact structure impacts the filter screen in the following manner:

[0038] The first eccentric wheel of the impact structure rotates, one end of the first connecting rod slides in the groove of the eccentric wheel, and the second connecting rod connected to the other end of the first connecting rod slides back and forth in the straight rail, driving the impact hammer arranged at the front end of the second connecting rod to impact the filter screen, and the chips attached to the filter screen are peeled off after the impact.

[0039] Furthermore, in 2.2.3, the chips that have not descended are dumped into the collection bucket through the dumping structure, specifically:

[0040] The dumping structure drives the L-shaped rod to rotate through the rotation of the second eccentric wheel, and the third connecting rod fixed at the other end of the L-shaped rod drives the rocker arm to swing. When the end of the L-shaped rod fixed to the second eccentric wheel groove rises to the highest point in the second eccentric wheel groove, the third connecting rod drives the rocker arm to swing until the upper end of the rocker arm is at the lowest position. At this time, the residual chips in the filter screen are tilted and poured into the chip collecting bucket.

[0041] Another aspect of the present invention provides a titanium alloy part forming system for implementing the titanium alloy part forming method.

[0042] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0043] (1) Compared with the prior art, the present invention uses the vacuum consumable electrode shell furnace to rotate the gear system after pouring the molten metal during titanium alloy casting, and the rack drives the entire mechanism to slide on the track. After the pressure head of the pressure rod is aligned with the molten metal in the mold, the lever principle is used to rotate the rod to move the first end of the pressure rod upward and the second end downward to press the unsolidified molten metal, thereby compacting the air holes and shrinkage defects. The present invention combines the gear rack structure and the lever principle, has a simple structure, is accurate and efficient, and can simultaneously increase the high-temperature alloy casting filling force to achieve the purpose of reducing the forming limit of thin-walled parts, while also saving energy and reducing emissions and being easy to operate.

[0044] (2) Compared with the prior art, the present invention utilizes the contour curve of the cam in the cutting machine to precisely control the cutting or grinding process, utilizes the cam and roller to cooperate with the pulley slider to efficiently switch between cutting and grinding, and provides a cutting or grinding adjustment structure to make the switching method between cutting and grinding suitable for the processing of casting risers of different heights.

[0045] (3) Compared with the prior art, the present invention classifies and collects waste chips according to their forms through a waste chip collection device, using a filter to collect chips and a dust hopper to collect grinding chips. Since the chips are in the form of thin and long filaments and easily adhere to the filter, an impact structure is used to separate the chips from the filter and enter the chip hopper. For the remaining chips, a dumping structure is used to dump the remaining chips into the chip hopper. This solves the problem of chip mixing and accumulation in the integrated cutting and grinding process, and can efficiently process cutting chips and grinding chips.

[0046] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following content, and some advantages will become apparent from the description or be learned through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained as particularly pointed out in the text and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0048] Figure 1 Schematic diagram of the process of forming a titanium alloy part in Example 1;

[0049] Figure 2 Schematic diagram of the structure of the titanium alloy casting equipment and casting auxiliary device of Example 2;

[0050] Figure 3 Schematic diagram of the structure of the casting auxiliary device of Example 2;

[0051] Figure 4 Schematic diagram of the structure of the integrated cutting and grinding device of Example 2;

[0052] Figure 5 Schematic diagram of the structure of the filter screen and dust hopper of Example 2;

[0053] Figure 6 Schematic diagram of the impact structure of Example 2;

[0054] Figure 7 This is a schematic structural diagram of the dumping structure of Example 2.

[0055] Reference numerals:

[0056] 1-Vacuum consumable electrode shell furnace, 11-Rotating shaft, 2-Casting auxiliary device, 21-Support structure, 22-Gear train, 221-Output shaft, 23-Rack, 24-Rotating rod, 25-Press rod, 251-Compression spring, 252-Press head, 253-First return spring, 26-Ratchet, 3-Cutting and grinding device, 31-Cam assembly, 311-Cam, 32-Roller assembly, 321-Roller, 322-Roller return structure, 33-Slide rail Components, 331-slide rail, 332-slider, 34-tool assembly, 341-cutting tool, 342-grinding tool, 4-waste collection device, 41-filter, 42-dust hopper, 43-impact structure, 431-first eccentric wheel, 432-first connecting rod, 433-straight rail, 434-second connecting rod, 435-impact hammer, 44-dumping structure, 441-second eccentric wheel, 442-L-shaped rod, 443-third connecting rod, 444-rocker. DETAILED DESCRIPTION

[0057] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0058] Example 1

[0059] A specific embodiment of the present invention, as Figure 1 As shown, a titanium alloy part forming method is disclosed, comprising the following steps:

[0060] Step 1: Titanium alloy casting;

[0061] Step 2: Cutting and grinding the pouring and riser of titanium alloy castings;

[0062] Step 3: The titanium alloy casting is further machined and shaped.

[0063] In step 1, the titanium alloy casting process includes:

[0064] Step 1.1: Pour the titanium alloy solution from the crucible into the mold;

[0065] Step 1.2: compacting the unsolidified titanium alloy solution;

[0066] Step 1.3: Casting of titanium alloy parts.

[0067] In the step 1.1, the titanium alloy solution is poured into the mold from the crucible of the vacuum consumable electrode shell furnace 1. Specifically, the vacuum consumable electrode shell furnace 1 has a rotating shaft 11, and the crucible is arranged on the rotating shaft 11.

[0068] The titanium alloy solution is poured from the crucible into the mold in the following manner: in the first cycle, the rotating shaft 11 rotates forward to pour the molten metal in the crucible into the mold; the rotating shaft 11 rotates reversely to reset the crucible.

[0069] In step 1.2, the compaction method is:

[0070] Step 1.2.1: The pressing rod 25 of the casting auxiliary device moves to above the molten metal in the mold, and the rotating rod 24 rotates until its end is located below the end of the pressing rod 25.

[0071] Step 1.2.2: The rotating rod 24 moves the end of the pressing rod 25 upward, and the other end of the pressing rod 25 presses down the molten metal.

[0072] In step 1.2.1, in the second cycle, the rotating shaft 11 rotates forward, and a rack 23 is provided at the lower portion of the gear train 22 on the rotating shaft 11 . The gear train 22 rolls on the rack 23 to the pressure rod 25 provided at the other end of the rack 23 .

[0073] It should be noted that the gear train 22 has an output shaft 221 and is equipped with a ratchet 26 and a pawl. During the first cycle, when the rotating shaft 11 rotates in the reverse direction, the crucible resets, and the pawl slides on the back of the teeth of the ratchet 26, preventing the ratchet 26 from rotating further. This also stops the gear train 22 and the output shaft 221. During the second cycle, when the rotating shaft 11 rotates in the forward direction, the ratchet 26 and the pawl rotate normally, and the gear train 22 and the output shaft 221 rotate normally.

[0074] Furthermore, a support structure 21 is provided at the lower portion of the auxiliary device. The support structure 21 is provided on the track. A rack 23 is provided on the support structure 21. The rotation of the gear train 22 on the rack 23 enables the entire auxiliary device to slide on the track.

[0075] In the step 1.2.2, specifically, a rotating rod 24 is radially provided on the output shaft 221, and the length direction of the rotating rod 24 is perpendicular to the axis. Driven by the rotation of the output shaft 221, the rotating rod 24 pushes the pressure rod 25 upward, so that the end of the pressure rod 25 close to the rotating rod 24 is lifted upward, so that the end of the pressure rod 25 with the pressure head 252 away from the rotating rod 24 presses the unsolidified metal liquid downward.

[0076] It should be noted that the compaction conditions are: when the casting auxiliary device 2 presses down, the molten metal temperature is 930℃-1750℃, the auxiliary device applies a pressure of 45000Pa-90000Pa to the molten metal or the incompletely solidified casting, and the holding time is 5min-7min.

[0077] Compared to the prior art, this embodiment, after pouring the molten metal during casting, utilizes the rotary shaft 11 of the vacuum consumable electrode shell furnace 1 to drive the gear train 22 to rotate. After the pressure head 252 of the pressing rod 25 is aligned with the molten metal in the mold, the rack 23 drives the entire mechanism to slide on the track. After the pressure head 252 of the pressing rod 25 is aligned with the molten metal in the mold, the lever principle is utilized to rotate the rod 24 to move the first end of the pressing rod 25 upward and the second end downward to press down on the unsolidified molten metal, thereby compacting pores and shrinkage defects. This embodiment combines the structure of the gear rack 23 with the lever principle, resulting in a simple structure, precision and efficiency, while also increasing the filling force of high-temperature alloy castings and achieving the purpose of reducing the forming limit of thin-walled parts.

[0078] The step 2 specifically includes:

[0079] Step 2.1: Cutting and grinding the riser of titanium alloy casting;

[0080] Step 2.2: Cutting chips and grinding chips are classified and collected by the waste chip collection device 4.

[0081] In step 2.1, in order to improve the processing efficiency of the pouring and rising heads, the pouring and rising heads of the titanium alloy casting are cut and ground using the integrated cutting and grinding device 3 .

[0082] The step 2.1 specifically includes:

[0083] Step 2.1.1: The tool assembly 34 of the integrated cutting and grinding device 3 is located at the cutting position to cut the pouring and riser of the casting;

[0084] Step 2.1.2: The cutting tool of the tool assembly 34 is retracted, and the tool assembly 34 moves to the grinding station to grind the pouring head of the casting.

[0085] In step 2.1.1, the cutting tool operates by rotating the cam, whose arc-shaped profile presses down on roller assembly 3232. Roller assembly 3232 lowers tool assembly 34, bringing cutting tool 341 close to the casting riser. Using the cutting tool adjustment mechanism, cutting tool 341 descends to the casting riser, where it cuts the titanium alloy riser.

[0086] It should be noted that the cam has an arc profile. The central angle of the cam's arc corresponds to the cam's rotational speed setting and the duration of the cutting or grinding process. When the cam contacts roller 321 at the start of the arc, it presses down on roller 321 to perform cutting or grinding. Cutting or grinding is completed when the cam rotates to the end of the arc.

[0087] In step 2.1.2, the tool assembly 34 moves to the grinding station, specifically including:

[0088] The cam profile is separated from the roller 321, and the roller 321 is reset under the roller reset structure 322, and drives the tool assembly 34 to reset. The roller assembly 3232 and the tool assembly 34 move along the guide rail to the second limit block along with the slider 332.

[0089] The tool performs grinding processing on the pouring head of the casting, specifically:

[0090] The cam rotates, and the arc profile of the cam presses down the roller assembly 3232, which drives the tool down, so that the grinding tool 341 approaches the casting riser. The grinding tool adjustment mechanism is used to adjust the grinding tool to move down to the casting riser to perform the casting riser grinding process.

[0091] Compared with the existing technology, this embodiment utilizes the contour curve of the cam in the cutting machine to precisely control the cutting or grinding process, and utilizes the cam and roller 321 to cooperate with the pulley slider 332 to efficiently switch between cutting and grinding. By setting the cutting or grinding adjustment structure, the switching method of cutting and grinding is suitable for the processing of casting risers of different heights.

[0092] In the step 2.2, the chips and grinding are collected by the waste chip collection device 4, specifically including:

[0093] Step 2.2.1: The chips remain on the filter screen 41 and the grinding chips are filtered into the dust hopper 42.

[0094] Step 2.2.2: After the grinding chips enter the dust hopper 42, they are collected by the dust collector.

[0095] Step 2.2.3: The impact structure 411 impacts the filter screen 41, causing the chips in the filter screen 41 to flow down the slope into the chip collecting bucket; the chips that do not flow down are dumped into the collection bucket through the dumping structure 412.

[0096] To address the different forms of cutting and grinding chips, including long, thin, and large cutting chips and small grinding chips, a waste chip collection structure is installed at the lower portion of the workstation of the integrated cutting and grinding device 3. The waste chip collection device 4 includes an inclined filter screen 41 and a dust hopper 42. The filter screen 41 is positioned vertically above the dust hopper 42. The filter screen 41 is used to filter the cutting chips, while the dust hopper 42 is used to collect the grinding chips.

[0097] In step 2.2.1, the waste chips fall into the waste chip collection structure, the filter screen 41 intercepts the cutting chips, and the grinding chips are filtered into the dust hopper 42.

[0098] In step 2.2.3, the chips are thin and filamentous and are easily attached to the filter screen 41 and are not easy to slide down the slope. A collision structure 411 is provided on one side of the filter screen 41 to knock the chips attached to the filter screen 41 off by collision and slide them into the chip collecting bucket.

[0099] Specifically, as the first eccentric 4111 rotates, one end of the first connecting rod 4112 slides in the eccentric groove, causing the second connecting rod 4114, connected to the other end of the first connecting rod 4112, to slide back and forth in the straight rail 4113. This drives the impact hammer 4115, located at the front end of the second connecting rod 4114, to impact the filter 41, thereby stripping away the chips attached to the filter 41. It is important to note that a second return spring is provided between the impact hammer 4115 and the second connecting rod 4114 to ensure that the impact hammer 4115 is immediately reset after impact.

[0100] The dumping structure 412 in the step 2.2.3 is arranged on the other side of the filter 41, and the second eccentric wheel 4121 rotates to drive the L-shaped rod 4122 to rotate. By utilizing the lever effect, the third connecting rod 4123 fixed to the other end of the L-shaped rod 4122 drives the rocker arm 4124 to swing. When one end of the L-shaped rod 4122 reaches the highest point in the groove of the second eccentric wheel 4121, the third connecting rod 4123 drives the rocker arm 4124 to swing until the end of the rocker arm 4124 is at the lowest position. At this time, the remaining chips in the filter 41 are poured into the chip collecting bucket.

[0101] Compared to existing technologies, this embodiment uses a waste chip collection device 4 to classify and collect cutting and grinding chips according to their form. A filter 41 collects cutting chips, while a dust hopper 42 collects grinding chips. Since the cutting chips are long, thin threads that easily adhere to the filter 41, an impact mechanism 411 is used to separate the cutting chips from the filter 41 and transfer them to the dust hopper. Remaining cutting chips are then dumped into the dust hopper using a dumping mechanism 412. This solves the problem of chip mixing and accumulation during integrated cutting and grinding processes, enabling efficient processing of cutting and grinding chips.

[0102] Example 2

[0103] This embodiment discloses a titanium alloy part forming system, which is used to implement the titanium alloy part forming method of embodiment 1. Figure 2-Figure 7 As shown, it includes casting equipment, a casting auxiliary device 2, a cutting and grinding device 3 and a waste chip collection device 4.

[0104] like Figure 2 As shown, the casting equipment includes a vacuum consumable electrode shell furnace 1 and a crucible. The vacuum consumable electrode shell furnace 1 has a rotating shaft 11, and the crucible is arranged on the rotating shaft 11. In the first cycle, when the rotating shaft 11 rotates in the forward direction, the molten metal in the crucible is poured into the mold for casting. When the rotating shaft 11 rotates in the reverse direction, the crucible is reset.

[0105] like Figure 3 As shown, the casting auxiliary device 2 includes a support structure 21 , a gear train 22 , a rack 23 , a rotating rod 24 and a pressure rod 25 .

[0106] Gear train 22, rack 23, rotating rod 24, and pressure rod 25 are mounted on support structure 21. Support structure 21 is mounted on a track below, and rack 23 is mounted on support structure 21. Gear train 22 and pressure rod 25 are mounted on either end of the upper portion of rack 23. The rotation of gear train 22 on rack 23 enables the entire auxiliary device to slide on the track.

[0107] The gear train 22 is provided with a ratchet 26 and a pawl. In the first cycle, when the rotating shaft 11 rotates in the reverse direction, the crucible is reset and the pawl slides on the back of the teeth of the ratchet 26, preventing the ratchet 26 from rotating further. In the second cycle, when the rotating shaft 11 rotates in the forward direction, the ratchet 26 and the pawl rotate normally.

[0108] The gear train 22 has an output shaft 221, radially mounted with a rotating rod 24, the length of which is perpendicular to the axis. A pressure rod 25 is hingedly connected to the rack 23. One end of the pressure rod 25 is provided with a compression spring 251, the other end with a pressure head 252, and a first return spring 253 located near the pressure head 252. When the rotating rod 24 rotates on the output shaft 221, the end of the rotating rod 24 lies below one end of the compression spring 251 of the pressure rod 25. As the output shaft 221 rotates, the rotating rod 24 pushes the pressure rod 25 upward, causing the pressure head 252 of the pressure rod 25 to press downward on the unsolidified molten metal.

[0109] like Figure 4 As shown, the cutting and grinding device 3 includes a cam assembly 31, a roller assembly 3232, a slide rail assembly 33 and a cutter assembly 34. The roller assembly 3232 is disposed at the lower portion of the cam assembly 31, and the cutter assembly 34 is disposed at the lower end of the roller assembly 3232 and connected to the roller assembly 3232.

[0110] The cam assembly 31 includes two cams, the roller assembly 3232 includes a roller 321 and a roller reset structure 322, and the tool assembly 34 includes a tool and a tool adjustment structure.

[0111] The cam has an arc profile. The central angle of the cam's arc corresponds to the cam's rotational speed setting and the duration of the cutting or grinding process. When the cam contacts roller 321 at the start of the arc, it presses down on roller 321 to perform cutting or grinding. Cutting or grinding is completed when the cam rotates to the end of the arc.

[0112] To accommodate risers of varying heights, a tool adjustment mechanism is provided, equipped with an adjustment motor and guide posts. A cutting tool 341 and a grinding tool 342 are mounted on either end of the tool holder. When cutting, the cutting tool 341 is raised and lowered to the riser position by the adjustment mechanism. When grinding, the grinding tool 342 is raised and lowered to the riser position by the adjustment mechanism.

[0113] The slide rail 331 structure includes a slide rail 331 and a slider 332, and the roller reset structure 322 is provided on the slider 332. A first limiting block and a second limiting block are provided at both ends of the slide rail 331 for limiting the slider 332.

[0114] like Figure 5 As shown, the waste chip collection device 4 includes an inclined filter screen 41 and a dust collecting hopper 42. The filter screen 41 is vertically arranged on the upper part of the dust collecting hopper 42. The filter screen 41 is used to filter the chips, and the dust collecting hopper 42 is used to collect the grinding chips.

[0115] like Figure 6As shown, a striking structure 411 is provided on one side of the filter screen 41 for knocking off the chips attached to the filter screen 41 and sliding them into the chip collecting bucket. The striking structure 411 includes a first eccentric wheel 4111, a first connecting rod 4112, a straight rail 4113, an impact hammer 4115, and a second return spring.

[0116] The first connecting rod 4112 is disposed in the groove of the first eccentric wheel 4111. The end of the second connecting rod 4114 is connected to the end of the first connecting rod 4112. The second connecting rod 4114 can slide in the straight rail 4113. The impact hammer 4115 is disposed at the other end of the second connecting rod 4114. A second return spring is disposed between the second connecting rod 4114 and the impact hammer 4115.

[0117] like Figure 7 As shown, a tilting structure 412 is provided on the other side of the filter 41. The tilting structure 412 includes a second eccentric 4121, an L-shaped rod 4122, a third connecting rod 4123, and a rocker arm 4124. One end of the L-shaped rod 4122 is positioned in a groove in the second eccentric 4121, while the other end is connected to the third connecting rod 4123. The middle portion is hinged to a fixed plate. The third connecting rod 4123 is positioned in the middle of the rocker arm 4124, and the end of the rocker arm 4124 is fixedly connected to one side of the filter 41.

[0118] The second eccentric wheel 4121 rotates, driving the L-shaped rod 4122 to rotate. Using the lever effect, the third connecting rod 4123 fixed to the other end of the L-shaped rod 4122 drives the rocker arm 4124 to swing. When one end of the L-shaped rod 4122 reaches the highest point in the groove of the second eccentric wheel 4121, the third connecting rod 4123 drives the rocker arm 4124 to swing until the end of the rocker arm 4124 is at the lowest position. At this time, the remaining chips in the filter screen 41 are poured into the chip collecting bucket.

[0119] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A titanium alloy part forming method, characterized in that: The following steps are involved: Step 1: Titanium alloy casting; Step 2: Cutting and grinding the pouring and riser of titanium alloy castings; Step 3: The titanium alloy casting is further machined and shaped.

2. The titanium alloy part forming method according to claim 1, characterized in that: The step 1 comprises: Step 1.1: Pour the titanium alloy solution from the crucible into the mold; Step 1.2: compacting the unsolidified titanium alloy solution; Step 1.3: Casting of titanium alloy parts.

3. The titanium alloy part forming method according to claim 2, characterized in that: In the step 1.1, the vacuum consumable electrode shell furnace (1) has a rotating shaft (11), and the crucible is arranged on the rotating shaft (11); in the first cycle, the rotating shaft (11) rotates in the forward direction, so that the molten metal in the crucible is poured into the mold; the rotating shaft (11) rotates in the reverse direction, and the crucible is reset.

4. The titanium alloy part forming method according to claim 2, characterized in that: The compaction conditions in step 1.2 are as follows: in the second cycle, the casting auxiliary device (2) is used for compaction, the temperature of the molten metal when the casting auxiliary device (2) presses down is 930°C-1750°C, the pressure applied by the casting auxiliary device (2) to the molten metal or the incompletely solidified casting is 45000Pa-90000Pa, and the holding time is 5min-7min.

5. The titanium alloy part forming method according to claim 2, characterized in that: The step 1.2 includes: Step 1.2.1: The pressing rod (25) of the casting auxiliary device (2) moves to above the molten metal in the mold, and the rotating rod (24) rotates until its end is located below the end of the pressing rod (25); Step 1.2.2: The rotating rod (24) moves the end of the pressing rod (25) upward, and the other end of the pressing rod (25) presses down the molten metal.

6. The titanium alloy part forming method according to claim 1, characterized in that: The step 2 specifically includes: Step 2.1: Cutting and grinding the riser of titanium alloy casting; Step 2.2: Cutting chips and grinding chips are collected and classified by the waste chip collection device (4).

7. The titanium alloy part forming method according to claim 6, characterized in that: The step 2.1 specifically includes: Step 2.1.1: The tool assembly (34) of the cutting and grinding device (3) is located at the cutting position to cut the pouring and riser of the titanium alloy casting; Step 2.1.2: The cutting tool (341) of the tool assembly (34) is retracted, and the tool assembly (34) moves to the grinding station to grind the pouring head of the titanium alloy casting.

8. The titanium alloy part forming method according to claim 6, characterized in that: In step 2.2, the waste collection device (4) comprises a filter screen (41) and a dust collecting hopper (42) arranged obliquely in the longitudinal direction, as well as an impact structure (43) and a dumping structure (44); the filter screen (41) is vertically arranged on the upper part of the dust collecting hopper (42), and the impact structure (43) and the dumping structure (44) are respectively arranged on both sides of the filter screen (41).

9. The titanium alloy part forming method according to claim 8, characterized in that: In the step 2.2, the chips and grinding are classified and collected by the waste chip collection device (4), specifically including: Step 2.2.1: The chips remain on the filter (41), and the grinding chips are filtered into the dust hopper (42); Step 2.2.2: After the grinding chips enter the dust collecting hopper (42), they are collected by the dust collector; Step 2.2.3: The impact structure (43) impacts the filter (41), causing the chips in the filter (41) to flow down along the slope into the chip collecting bucket; the chips that do not flow down are dumped into the collection bucket through the dumping structure (44).

10. A titanium alloy parts forming system, characterized in that: Used to implement the titanium alloy part forming method described in any one of claims 1-9.

Images