High-strength steel alloy part defect-preventing degreasing device and degreasing method

Abstract

The present application relates to high-strength steel alloy parts prevent defect degreasing device and degreasing method belongs to high-strength steel alloy parts technical field, including degreasing furnace main part, degreasing furnace main part one side is equipped with conveying mechanism, degreasing furnace main part one side fixed mounting has support platform, support platform upper side is equipped with gas supply mechanism, gas supply mechanism upper side is equipped with ration mechanism, conveying mechanism includes support frame, support frame one side surface fixed mounting has take dish button, install dish button, support frame inside fixed mounting has electric telescopic rod, gas supply mechanism includes gas storage warehouse, gas inlet pipeline, gas storage warehouse end fixed mounting has gas supply pipeline, ration gas supply pipeline, ration mechanism includes control rod, sliding cylinder, the present application is through setting conveying mechanism, can limit the order of taking acid and taking off the plate, avoid the behavior of workers taking at will, avoid the situation of acid and taking off the plate frame dumping and acid and taking off the plate collision occurs, further reaches the effect of reducing the rate of defective products.

Description

Technical Field

[0001] This invention relates to the field of high-strength steel alloy parts technology, specifically to a degreasing device and method for preventing defects in high-strength steel alloy parts. Background Technology

[0002] The degreasing device for preventing defects in high-strength steel alloy parts is a specialized tooling equipment for efficiently removing contaminants such as grease, emulsion, and dust from the surface of high-strength steel alloy precision parts. It avoids defects such as deformation, scratches, residual liquid, surface oxidation, and stress concentration in the parts during the degreasing process.

[0003] High-end consumer electronics (such as foldable screen phones and AR / VR devices) are developing towards the extremes of thinness, lightness, high strength, and multi-functional integration. Their core metal structural components (such as hinges and mid-frames) must adopt integrated design of dissimilar materials such as steel / copper and tungsten / steel. Therefore, the use of high-strength steel alloy parts will become more and more frequent.

[0004] High-strength steel alloy parts are formed by mixing metal powder and multi-component binders into a uniform feedstock, and then using injection molding. However, these high-strength steel alloy parts require degreasing and sintering. The degreasing process involves placing the high-strength steel alloy parts into a degreasing furnace. However, since a large amount of flammable and explosive gases are generated during the degreasing process, nitrogen is usually injected into the furnace to dilute these gases and ensure the safe operation of the furnace. The current method of injecting nitrogen involves installing sensors inside and outside the furnace to determine whether additional nitrogen is needed. However, because the degreasing furnace operates at high temperatures, the sensors may become damaged or inaccurate after prolonged use.

[0005] Meanwhile, when placing high-strength steel alloy parts in the acid tray, the workers' order of handling them is rather random, which can cause the acid tray frame to become unstable and tip over, and the two acid removal trays to collide, resulting in high-strength steel alloy parts falling off and becoming defective products. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a degreasing device and method for preventing defects in high-strength steel alloy parts, which solves the problems of inaccurate and unstable nitrogen replenishment and high defect rate.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a degreasing device for preventing defects in high-strength steel alloy parts, comprising a degreasing furnace body, a conveying mechanism on one side of the degreasing furnace body, a support platform fixedly installed on one side of the degreasing furnace body, a gas conveying mechanism on the upper side of the support platform, and a metering mechanism on the upper side of the gas conveying mechanism;

[0008] The conveying mechanism includes a support frame, on one side surface of which a tray retrieval button and a tray loading button are fixedly installed, and an electric telescopic rod is fixedly installed inside the support frame;

[0009] The gas transmission mechanism includes a gas storage chamber and an air inlet pipe. A gas transmission pipe and a metering gas transmission pipe are fixedly installed at the end of the gas storage chamber.

[0010] The metering mechanism includes a control rod and a sliding cylinder. The control rod has several grooves on its outer side and is located inside the sliding cylinder. A metering chamber is fixedly installed on the upper end of the sliding cylinder.

[0011] A battery and a PLC control module are fixedly installed on the lower surface of the support frame. Slide grooves are provided on both sides of the support frame, and one end of the electric telescopic rod extends into the slide groove.

[0012] The upper end of the degreasing furnace body is fixedly installed with a discharge channel, a bolt lock is rotatably connected to one side of the degreasing furnace body, a furnace door is rotatably installed on one side of the degreasing furnace body, a placement rack is fixedly installed inside the degreasing furnace body, and a latch is fixedly installed on one side surface of the furnace door, and the bolt lock is engaged with the latch.

[0013] One end of the metered gas supply pipe is fixedly connected to one side surface of the degreasing furnace body, one end of the gas inlet pipe is fixedly connected to the upper end of the metering chamber, and the end of the gas inlet pipe away from the metering chamber is fixedly connected to the outer surface of the degreasing furnace body.

[0014] An air guide tube is fixedly installed on one side surface of the degreasing furnace body. The outer surface of the air guide tube is fixedly connected to one end of the sliding cylinder. A support plate is fixedly installed on the inner wall of the sliding cylinder. A spring is fixedly installed on the upper surface of the support plate. A slider is fixedly installed on the end of the spring away from the support plate. The end of the slider away from the spring is fixedly connected to the lower end of the control rod.

[0015] The quantitative chamber has an air inlet chamber, an air delivery chamber, and a sliding channel inside. One end of the control rod extends into the sliding channel. The air inlet chamber is located above the air delivery chamber, and the air inlet chamber and the air delivery chamber are in a ring shape.

[0016] The quantitative chamber has several control channels on its outer side, which are connected to the inside of the gas delivery chamber. The inner wall of the control channel has an air inlet groove, and the control channel and the air inlet chamber are connected through the inside of the air inlet groove.

[0017] A limiting channel is provided on the outer side of the lower end of the quantitative chamber. The limiting channel is connected to the interior of the sliding channel. A limiting slide rod is slidably connected to the inner wall of the limiting channel, and a control block is slidably connected to the inner wall of the control channel.

[0018] Several fixing blocks are fixedly installed on the outer surface of the quantitative chamber. A rotating shaft is rotatably installed on both sides of the inner wall of the fixing blocks. A rotating shaft is rotatably installed on the end of the limiting slide rod away from the sliding channel. A long rod is rotatably connected to the outer side of the rotating shaft and the outer side of the rotating shaft. The outer side of the rotating shaft is rotatably connected to the end of the long rod. The outer side of the rotating shaft is rotatably connected to the middle of the long rod. A control block is fixedly connected to the end of the long rod away from the rotating shaft.

[0019] A degreasing method for preventing defects in high-strength steel alloy parts includes the following steps:

[0020] Step 1: Transporting and placing the acid stripping trays: Push the support frame until it stops moving on one side of the degreasing furnace body. Press the tray removal button and take the acid stripping trays from bottom to top. Place the acid stripping trays into the placement rack from top to bottom.

[0021] Step 2: Opening and closing the degreasing oven: Close the oven door, pull the bolt lock, the bolt lock engages with the latch, turn the bolt lock, and the oven door will fit tightly against the main body of the degreasing oven;

[0022] Step 3: Quantitative delivery of nitrogen: The slider moves upward, the control rod moves upward, the control rod stops contacting the limit slide bar, the high-pressure nitrogen pushes the control block, the control block moves, the long rod rotates, the limit slide bar moves towards the groove and fits, and the nitrogen enters the degreasing furnace body through the air inlet chamber and air inlet pipe;

[0023] Step 4: Stop nitrogen delivery: The spring contracts, the slider moves downward, the control rod moves downward, the limit slide bar contacts the surface of the control rod, the limit slide bar moves back to the initial position, the long rod rotates, the control block moves back to the initial position, the control block seals the gas delivery chamber, and the gas delivery chamber stops delivering nitrogen.

[0024] Step 5: Removal of the acid stripping tray: Turn the bolt lock, push the bolt lock, the bolt lock and the buckle will disengage. Pull the furnace door, press the tray loading button, and remove the acid stripping trays from the placement rack in order from bottom to top. Then place the acid stripping trays on the support rack in order from top to bottom.

[0025] Compared with the prior art, the present invention provides a degreasing device and method for preventing defects in high-strength steel alloy parts, which has the following beneficial effects:

[0026] 1. By setting up a conveying mechanism, this invention can restrict the order in which acid stripping trays are picked up, prevent workers from picking them up randomly, and avoid situations such as the acid stripping tray rack tipping over or the acid stripping trays colliding, thereby achieving the effect of reducing the defect rate.

[0027] 2. By setting up a gas supply mechanism, the present invention can continuously supply nitrogen to the interior of the degreasing furnace. At the same time, when the reaction inside the degreasing furnace is violent, the gas supply mechanism can still ensure a stable input of nitrogen, thereby ensuring the dilution effect of flammable, explosive and other harmful gases, thus achieving the effects of precise and stable nitrogen replenishment and safe operation.

[0028] 3. By setting a quantitative mechanism, this invention can replenish nitrogen according to the reaction inside the degreasing furnace, ensuring the dilution effect of flammable, explosive and other harmful gases. At the same time, by quantitatively replenishing nitrogen, it can also save resources, thereby achieving the effects of accurate and stable nitrogen replenishment and safe operation.

[0029] 4. By setting a groove, the present invention can provide space for the movement of the limiting slide bar, thereby ensuring the control block's control over the gas delivery chamber and ensuring nitrogen replenishment, thus achieving the effects of accurate, stable, and safe nitrogen replenishment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the conveying mechanism structure of the present invention;

[0033] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the diagram;

[0034] Figure 5 This is a schematic diagram of the quantitative mechanism structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the air intake pipe structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the cross-sectional structure of the quantitative bin of the present invention;

[0037] Figure 8 This is a schematic diagram of the limiting channel structure of the present invention;

[0038] Figure 9 This is a schematic diagram of the spring structure of the present invention;

[0039] Figure 10 This is a schematic diagram of the groove structure of the present invention;

[0040] Figure 11 This is a schematic diagram of the limiting slide bar structure of the present invention;

[0041] Figure 12For the present invention Figure 11 Enlarged schematic diagram of the structure at point B in the diagram.

[0042] In the diagram: 1. Degreasing furnace body; 11. Placement rack; 12. Bolt lock; 13. Furnace door; 14. Lock; 15. Discharge channel; 16. Support platform;

[0043] 2. Conveying mechanism; 21. Support frame; 22. Loading button; 23. Removing button; 24. Battery; 25. PLC control module; 26. Electric telescopic rod; 27. Slide rail;

[0044] 3. Gas transmission mechanism; 31. Gas storage tank; 32. Quantitative gas transmission pipeline; 33. Gas transmission pipeline; 34. Gas inlet pipeline;

[0045] 4. Metering mechanism; 41. Metering chamber; 412. Air inlet chamber; 413. Air delivery chamber; 414. Control channel; 415. Air inlet slot; 416. Limiting channel; 417. Sliding channel; 42. Sliding cylinder; 43. Air guide cylinder; 44. Control rod; 441. Groove; 45. Spring; 46. Slider; 47. Support plate; 48. Limiting slide rod; 481. Control block; 49. Long rod; 491. Rotating shaft; 492. Rotating shaft one; 493. Fixing block. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please see Figures 1 to 12 The high-strength steel alloy parts anti-defect degreasing device in this embodiment includes a degreasing furnace body 1. A gas guide cylinder 43 is fixedly installed on one side surface of the degreasing furnace body 1. The interior of the gas guide cylinder 43 is connected to the interior of the degreasing furnace body 1. Therefore, when the degreasing furnace body 1 undergoes a degreasing reaction, the reaction will generate heat, and the internal pressure of the degreasing furnace body 1 will increase. The increased pressure will be transmitted to the interior of the gas guide cylinder 43. The outer surface of the gas guide cylinder 43 is fixedly connected to one end of the sliding cylinder 42. A discharge channel 15 is fixedly installed on the upper end of the degreasing furnace body 1. The discharge channel 15 is used to discharge diluted gas, thereby avoiding dangerous situations in the degreasing furnace body 1. A bolt lock 12 is rotatably connected to one side of the degreasing furnace body 1. The bolt lock 12 is engaged with the latch 14. By first engaging the bolt lock 12 with the latch 14, and then rotating the bolt lock 12, the furnace door 13 can be tightly fitted to the degreasing furnace body 1, thereby ensuring the sealing during the reaction process. A furnace door 13 is rotatably installed on one side of the degreasing furnace body 1. A latch 14 is fixedly installed on one side surface of the furnace door 13.

[0048] The degreasing furnace body 1 has a fixedly installed rack 11 inside, which is used to place acid degreasing trays. The acid degreasing trays are placed in a top-to-bottom order. A conveying mechanism 2 is provided on one side of the degreasing furnace body 1, and a support platform 16 is fixedly installed on one side of the degreasing furnace body 1. A gas supply mechanism 3 is provided on the upper side of the support platform 16, and a metering mechanism 4 is provided on the upper side of the gas supply mechanism 3. The conveying mechanism 2 includes a support frame 21. A battery 24 and a PLC control module 25 are fixedly installed on the lower surface of the support frame 21. Slide grooves 27 are opened on both opposite sides of the support frame 21. A tray removal button 23 and a tray loading button 22 are fixedly installed on one side of the support frame 21. Several electric telescopic rods 26 are fixedly installed inside the support frame 21 and are connected to the support frame 21 for placing acid degreasing trays. The number of plates corresponds to the number of plates. One end of the electric telescopic rod 26 extends into the slide 27. Pressure sensors are installed at the positions where acid stripping plates are placed between the support frames 21. When placing acid stripping plates, first press the plate placement button 22, and then place them in order from top to bottom. The uppermost electric telescopic rod 26 will retract into the support frame 21 under the control of the PLC control module 25, so that the acid stripping plate can be inserted into the slide 27. If they are not placed in order, the acid stripping plate cannot be placed. After the first acid stripping plate is placed, the pressure sensor transmits the data to the PLC control module 25. The PLC control module 25 retracts the second electric telescopic rod 26. When the first electric telescopic rod 26 extends, it is used to fix the first placed acid stripping plate, and then the operation is carried out in sequence.

[0049] When removing the acid stripping tray, first press the tray removal button 23, and then remove the trays in order from bottom to top. After pressing the tray removal button 23, the electric telescopic rod 26 at the bottom acid stripping tray retracts, and the acid stripping tray is removed. At this time, the pressure sensor transmits data to the PLC control module 25. The PLC control module 25 then retracts the electric telescopic rod 26 at the next acid stripping tray to be removed, and the electric telescopic rod 26 of the removed acid stripping tray extends, thus completing the placement and removal steps of the acid stripping tray. The connection method between the PLC control module 25, the pressure sensor, the electric telescopic rod 26, and the PLC control module 25, the pressure sensor, and the electric telescopic rod 26 is existing technology and will not be described in detail here. The pressure sensor is not shown in the figure.

[0050] The gas supply mechanism 3 includes a gas storage chamber 31 and an air inlet pipe 34. There are two air inlet pipes 34. The gas storage chamber 31 is fixedly installed on the upper surface of the support platform 16. One end of the air inlet pipe 34 is fixedly connected to the upper end of the metering chamber 41, and the other end of the air inlet pipe 34 away from the metering chamber 41 is fixedly connected to the outer surface of the degreasing furnace body 1. A one-way valve is installed at the connection position between the air inlet pipe 34 and the degreasing furnace body 1 to prevent gas leakage from the inside of the degreasing furnace body 1 when nitrogen injection stops. The one-way valve is existing technology and will not be described in detail here, and is not shown in the figure. A gas supply pipe 33 and a metering gas supply pipe 32 are fixedly installed at the end of the gas storage chamber 31. The number of gas supply pipes 33 is the same as the number of air inlet pipes 34. One end of the metering gas supply pipe 32 is fixedly connected to one side surface of the degreasing furnace body 1. The metering gas supply pipe 32 continuously injects nitrogen into the degreasing furnace body 1 during operation.

[0051] The quantitative mechanism 4 includes a control rod 44 and a sliding cylinder 42. One end of the control rod 44 extends into the sliding channel 417. A support plate 47 is fixedly installed on the inner wall of the sliding cylinder 42. A spring 45 is fixedly installed on the upper surface of the support plate 47. The spring 45 is made of nickel-based alloy. When the elastic force of the spring 45 is less than the internal pressure of the degreasing furnace body 1, the spring 45 unfolds by the movement of the slider 46. When the elastic force of the spring 45 is greater than the internal pressure of the degreasing furnace body 1, the spring 45 contracts and pulls the slider 46 downward. The slider 46 is fixedly installed on the end of the spring 45 away from the support plate 47. The slider 46 is made of alumina-carbon fiber composite material. The end of the slider 46 away from the spring 45 is fixedly connected to the lower end of the control rod 44. Several grooves 441 are opened on the outer side of the control rod 44, and the lengths of the grooves 441 are different. They are distributed in a decreasing order at equal intervals around the periphery of the control rod 44. The limiting slide rod 48 is initially... The state is that it is slidably connected to the outside of the control rod 44. When the control rod 44 moves upward with the slider 46, the longest groove 441 can first provide moving space for the limiting slider 48. Therefore, the nitrogen in the gas supply chamber 413 can push the control block 481, and then the limiting slider 48 can move towards the groove 441. If the degreasing furnace body 1 reacts violently, a large amount of nitrogen is required. As a result, the temperature and pressure inside the degreasing furnace body 1 increase. At this time, the slider 46 continues to move, and the groove 441 can provide space for several limiting sliders 48 in sequence, thereby releasing the control block 481 from the restriction of the gas supply chamber 413. At this time, the gas supply chamber 413 is connected to the gas inlet chamber 412 through the gas inlet groove 415. At this time, the high-pressure nitrogen enters the degreasing furnace body 1 through the gas inlet chamber 412 and the gas inlet pipe 34 to complete the dilution work, and at the same time achieves the purpose of accurately and quantitatively replenishing nitrogen.

[0052] The control lever 44 is located inside the sliding cylinder 42, and a metering chamber 41 is fixedly installed at the upper end of the sliding cylinder 42. Several fixing blocks 493 are fixedly installed on the outer surface of the metering chamber 41. A rotating shaft 492 is rotatably installed on the inner wall of the fixing blocks 493 on both sides. The outer side of the rotating shaft 492 is rotatably connected to the middle of the long rod 49. A limit channel 416 is opened on the outer side of the lower end of the metering chamber 41. The limit channel 416 is internally connected to the sliding channel 417. A limit slide rod 48 is slidably connected to the inner wall of the limit channel 416. A rotating shaft 491 is rotatably installed on the end of the limit slide rod 48 away from the sliding channel 417, and the outer side of the rotating shaft 491 is rotatably connected to the end of the long rod 49.

[0053] A long rod 49 is rotatably connected to the outer side of the rotating shaft 491 and the outer side of the rotating shaft 492. A control block 481 is fixedly connected to the end of the long rod 49 away from the rotating shaft 491. Several control channels 414 are opened on the outer side of the metering chamber 41. The control block 481 is slidably connected to the inner wall of the control channel 414. The control channel 414 is connected to the inside of the gas delivery chamber 413. An air inlet groove 415 is opened on the inner wall of the control channel 414. The control channel 414 is connected to the air inlet chamber 412 through the inside of the air inlet groove 415. An air inlet chamber 412, a gas delivery chamber 413, and a sliding channel 417 are opened inside the metering chamber 41. The air inlet chamber 412 is located above the gas delivery chamber 413, and the air inlet chamber 412 and the gas delivery chamber 413 are in a ring shape.

[0054] In this embodiment, the degreasing method for preventing defects in high-strength steel alloy parts includes the following steps:

[0055] Step 1: Transporting and placing the acid stripping trays: Push the support frame 21 until it stops moving on one side of the degreasing furnace body 1. Press the tray removal button 23 and remove the acid stripping trays from bottom to top. Place the acid stripping trays into the placement rack 11 from top to bottom.

[0056] Step 2: Opening and closing the degreasing oven: Close the oven door 13, pull the bolt lock 12, the bolt lock 12 engages with the latch 14, rotate the bolt lock 12, and the oven door 13 fits tightly against the degreasing oven body 1;

[0057] Step 3: Quantitative delivery of nitrogen: Slider 46 moves upward, control rod 44 moves upward, control rod 44 stops contacting limit slide rod 48, high pressure nitrogen pushes control block 481, control block 481 moves, long rod 49 rotates, limit slide rod 48 moves towards the groove 441 and fits, nitrogen enters the degreasing furnace body 1 through air inlet chamber 412 and air inlet pipe 34;

[0058] Step 4: Stop nitrogen delivery: Spring 45 contracts, slider 46 moves downward, control rod 44 moves downward, limit slider 48 contacts the surface of control rod 44, limit slider 48 moves to the initial position, long rod 49 rotates, control block 481 moves to the initial position, control block 481 seals gas delivery chamber 413, gas delivery chamber 413 stops delivering nitrogen.

[0059] Step 5: Removal of the acid stripping tray: Rotate bolt lock 12, push bolt lock 12, bolt lock 12 disengages from lock buckle 14, pull furnace door 13, press tray loading button 22, remove the acid stripping tray from the placement rack 11 from bottom to top, and then place the acid stripping tray on the support rack 21 from top to bottom.

[0060] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A degreasing device for preventing defects in high-strength steel alloy parts, comprising a degreasing furnace body (1), characterized in that: The degreasing furnace body (1) is provided with a conveying mechanism (2) on one side, and a support platform (16) is fixedly installed on one side of the degreasing furnace body (1). A gas conveying mechanism (3) is provided on the upper side of the support platform (16), and a metering mechanism (4) is provided on the upper side of the gas conveying mechanism (3). The conveying mechanism (2) includes a support frame (21), on one side surface of the support frame (21) are fixedly installed a tray retrieval button (23) and a tray loading button (22), and an electric telescopic rod (26) is fixedly installed inside the support frame (21). The gas transmission mechanism (3) includes a gas storage chamber (31) and an air inlet pipe (34). A gas transmission pipe (33) and a metered gas transmission pipe (32) are fixedly installed at the end of the gas storage chamber (31). The quantitative mechanism (4) includes a control rod (44) and a sliding cylinder (42). The control rod (44) has several grooves (441) on its outer side. The control rod (44) is located inside the sliding cylinder (42), and a quantitative chamber (41) is fixedly installed on the upper end of the sliding cylinder (42). The quantitative chamber (41) is provided with an air inlet chamber (412), an air delivery chamber (413), and a sliding channel (417). Several control channels (414) are provided on the outside of the quantitative chamber (41). A gas guide cylinder (43) is fixedly installed on one side surface of the degreasing furnace body (1). The outer surface of the gas guide cylinder (43) is fixedly connected to one end of the sliding cylinder (42). A support plate (47) is fixedly installed on the inner wall of the sliding cylinder (42). A spring (45) is fixedly installed on the upper surface of the support plate (47). A slider (46) is fixedly installed on the end of the spring (45) away from the support plate (47). The end of the slider (46) away from the spring (45) is fixedly connected to the lower end of the control rod (44). The control channel (414) is connected to the interior of the air supply chamber (413), and an air inlet groove (415) is provided on the inner wall of the control channel (414). The control channel (414) and the air inlet chamber (412) are connected through the interior of the air inlet groove (415). A limiting channel (416) is provided on the outer side of the lower end of the quantitative chamber (41). The limiting channel (416) is connected to the interior of the sliding channel (417). A limiting slide rod (48) is slidably connected to the inner wall of the limiting channel (416). A control block (481) is slidably connected to the inner wall of the control channel (414). Several fixing blocks (493) are fixedly installed on the outer surface of the quantitative bin (41). A rotating shaft (492) is rotatably installed on the inner wall of the fixing block (493) on both sides. A rotating shaft (491) is rotatably installed on the end of the limiting slide rod (48) away from the sliding channel (417). A long rod (49) is rotatably connected to the outer side of the rotating shaft (491) and the rotating shaft (492). The outer side of the rotating shaft (491) is rotatably connected to the end of the long rod (49). The outer side of the rotating shaft (492) is rotatably connected to the middle of the long rod (49). A control block (481) is fixedly connected to the end of the long rod (49) away from the rotating shaft (491).

2. The degreasing device for preventing defects in high-strength steel alloy parts according to claim 1, characterized in that: The support frame (21) is fixedly mounted with a battery (24) and a PLC control module (25). The support frame (21) has grooves (27) on both sides. One end of the electric telescopic rod (26) extends into the groove (27).

3. The degreasing device for preventing defects in high-strength steel alloy parts according to claim 1, characterized in that: The upper end of the degreasing furnace body (1) is fixedly installed with a discharge channel (15), a bolt lock (12) is rotatably connected to one side of the degreasing furnace body (1), a furnace door (13) is rotatably installed on one side of the degreasing furnace body (1), a placement rack (11) is fixedly installed inside the degreasing furnace body (1), a latch (14) is fixedly installed on one side surface of the furnace door (13), and the bolt lock (12) is engaged with the latch (14).

4. The degreasing device for preventing defects in high-strength steel alloy parts according to claim 3, characterized in that: One end of the quantitative gas supply pipe (32) is fixedly connected to one side surface of the degreasing furnace body (1), one end of the gas inlet pipe (34) is fixedly connected to the upper end of the quantitative chamber (41), and the end of the gas inlet pipe (34) away from the quantitative chamber (41) is fixedly connected to the outer surface of the degreasing furnace body (1).

5. The degreasing device for preventing defects in high-strength steel alloy parts according to claim 1, characterized in that: One end of the control lever (44) extends into the sliding channel (417), the air intake chamber (412) is located above the air delivery chamber (413), and the air intake chamber (412) and the air delivery chamber (413) are in a ring shape.

6. A method for preventing defects in high-strength steel alloy parts by degreasing, using the device for preventing defects in high-strength steel alloy parts as described in any one of claims 1-5, characterized in that: Includes the following steps: Step 1: Transporting and placing the acid stripping trays: Push the support frame (21) until it stops moving on one side of the degreasing furnace body (1). Press the tray removal button (23) to remove the acid stripping trays from bottom to top and place them into the placement rack (11) from top to bottom. Step 2: Opening and closing the degreasing oven: Close the oven door (13), pull the bolt lock (12), the bolt lock (12) engages with the latch (14), rotate the bolt lock (12), and the oven door (13) fits tightly against the degreasing oven body (1); Step 3: Quantitative delivery of nitrogen: The slider (46) moves upward, the control rod (44) moves upward, the control rod (44) stops contacting the limit slide rod (48), the high-pressure nitrogen pushes the control block (481), the control block (481) moves, the long rod (49) rotates, the limit slide rod (48) moves towards the groove (441) and fits, and the nitrogen enters the degreasing furnace body (1) through the air inlet chamber (412) and air inlet pipe (34); Step 4: Stop nitrogen delivery: Spring (45) contracts, slider (46) moves downward, control rod (44) moves downward, limit slide (48) contacts the surface of control rod (44), limit slide (48) moves to the initial position, long rod (49) rotates, control block (481) moves to the initial position, control block (481) seals gas delivery chamber (413), gas delivery chamber (413) stops delivering nitrogen; Step 5: Removal of acid stripping tray: Rotate bolt lock (12), push bolt lock (12), bolt lock (12) disengages from lock buckle (14), pull furnace door (13), press tray loading button (22), remove acid stripping tray from the placement rack (11) from bottom to top, and then place acid stripping tray on support rack (21) from top to bottom.

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