An electric heating alloy hammering slag removing device

Abstract

The utility model discloses an electric heating alloy slag removing device, apply in metal product manufacturing technical field, the utility model discloses through mechanical linkage realizes the adjustment of height, ensure the adaptability cleaning of different thickness slag layer, and the buffer mechanism effectively absorbs the impact force when electric heating alloy slag removal, avoid hard contact scratch soft surface, protect slag removal structure from rigid damage, can maintain stable again scrape slag impact force, adapt to the slag material of work piece of different thickness, prolong the service life of key components, multi -way self -adaptation positioning function, ensure the steady clamping of different size work piece, effectively eliminate the positioning deviation caused by the non -compliance of specification, provide full clamping force while avoiding work piece surface indentation damage, realize quick assembly and disassembly, provide stable process standard for subsequent slag removal operation.

Description

Technical Field

[0001] This utility model belongs to the field of metal product manufacturing technology, and specifically relates to an electrothermal alloy forging slag removal device. Background Technology

[0002] Electrothermal alloys are resistance alloys that utilize the resistance properties of metals to create heating elements. They are mainly divided into two categories: Ni-Cr and Fe-Cr-Al. They possess characteristics such as high resistivity, stable temperature coefficient of resistance, strong resistance to high-temperature oxidation, and good corrosion resistance. They are widely used in electric heating elements of industrial furnaces, laboratory furnaces, and household appliances. Ni-Cr alloys have high high-temperature strength and are easy to process and weld, while Fe-Cr-Al alloys have even higher resistivity and better heat resistance, but they are prone to embrittlement at high temperatures and require special welding processes such as argon arc welding. When used, they need to be paired with specific furnace lining materials such as high-alumina refractory bricks, and the working temperature must be more than 100°C higher than the heated medium. The electrothermal alloy forging slag removal device is suitable for surface slag removal of forged square plate electrothermal alloys.

[0003] However, traditional electrothermal alloy forging slag removal devices are difficult to adapt to slag layers of different thicknesses, which can easily lead to incomplete cleaning or excessive scraping. The rigid contact structure will generate hard impact during slag removal, which may scratch the surface of soft workpieces. At the same time, it cannot effectively adapt to workpieces of different sizes, which can easily cause positioning deviation or unstable clamping. The rigid jaw structure can easily cause indentation or deformation on the workpiece surface, and has poor adaptability to the processing of soft alloys.

[0004] To address the problems mentioned in the background above, an electrothermal alloy forging slag removal device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a slag removal device for electrothermal alloy forging, which has the advantages of adjustable slag removal height and stable positioning.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an electrothermal alloy forging slag removal device, including a bracket, a screw rod is rotatably connected through the center of the top of the bracket, a screw sleeve is threadedly connected to the bottom of the surface of the screw rod, a cylinder is bolted to the left side of the screw sleeve, a connecting block is bolted to the left side of the cylinder, a spring is bolted to the bottom of the connecting block, a scraper is bolted to the bottom of the spring, and a positioning mechanism is provided at the bottom of the left side of the bracket.

[0007] The above technical solution involves rotating the screw, causing the screw sleeve to move up and down along the screw axis, which in turn drives the cylinder, connecting block, and scraper to rise and fall synchronously. During this process, the initial height of the scraper can be adjusted according to the thickness of the electrothermal alloy plate and the slag layer height to ensure a reasonable initial distance between the scraper and the workpiece surface, avoiding incomplete slag removal or workpiece damage due to improper height. After the screw sleeve is fixed, the cylinder extends and retracts, generating a horizontal thrust that pushes the connecting block and scraper towards the surface of the electrothermal alloy plate. When the scraper contacts the workpiece surface, the spring at the bottom of the connecting block is compressed. The elastic deformation of the spring absorbs the impact force, stabilizing the pressure of the scraper on the workpiece surface within a preset range. The buffering effect of the spring also adapts to the minor unevenness of the workpiece surface caused by forging, ensuring that the scraper always fits tightly against the workpiece surface, avoiding localized missed scraping. Under the continuous pressure of the spring, relative sliding occurs between the spring and the workpiece surface, forcibly peeling off the hard slag layers such as high-temperature oxide slag and molten slag. During this process, the cylinder maintains a stable thrust to ensure that the spring is under moderate compression, while the screw locks the height position, ensuring that the scraper always moves within the preset working plane, forming a continuous and uniform scraping trajectory. After the work is completed, the cylinder reverses its movement to move the scraper away from the workpiece, the spring resets, and the screw rotates in the opposite direction to raise the scraper, completing one work cycle. The mechanical linkage enables height adjustment, ensuring adaptability to cleaning slag layers of different thicknesses. The buffer mechanism effectively absorbs the impact force during slag removal by the electrothermal alloy, avoiding hard contact that scratches soft surfaces, protecting the slag removal structure from rigid damage, and maintaining a stable scraping impact force to adapt to workpiece slag materials of different thicknesses, thus extending the service life of key components.

[0008] The present invention is further configured such that the positioning mechanism includes a base, a partition is bolted to the front end, rear end and right side of the top of the base, a second spring is bolted to the front end, rear end and right side inside the partition, a clamping block is bolted to the end of the second spring away from the partition, and a fixing block is bolted to the left side of the top of the base.

[0009] The above technical solution employs a positioning mechanism with a base serving as the foundation support. Front, rear, and right-side partitions form a three-sided frame. Springs two inside the partitions are in a naturally extended state. At this point, the clamping space formed between the three clamping blocks is created. The left-side fixing block is a rigid structure, initially aligned with the right-side clamping block. The operator can then place the forged square plate into the clamping space. After the workpiece is placed, its right side and front and rear sides will contact the corresponding clamping blocks and generate a pushing force, forcing spring two to compress. The elastic restoring force of spring two reacts to the clamping blocks. The height of the clamping blocks and fixing blocks is lower than the height of the square plate, causing the three clamping blocks to clamp tightly from the right, front, and rear directions. It fits snugly against the workpiece surface, and with the rigid limit of the left-side fixing block, it forms a stable positioning. The elastic characteristics of the second spring can automatically adapt to the electric heating alloy square plate with different size errors, avoiding workpiece deformation or positioning failure caused by rigid clamping. The clamping force is evenly distributed through the compression of the second spring, ensuring that the workpiece does not shift or rotate during the slag removal process. It provides a stable working reference for slag removal components such as scrapers. The multi-directional adaptive positioning function ensures the stable clamping of workpieces of different sizes, effectively eliminating positioning deviations caused by specification mismatch. It provides sufficient clamping force while avoiding indentation damage to the workpiece surface, enabling quick assembly and disassembly, and providing a stable process reference for subsequent slag removal operations.

[0010] The present invention is further configured such that a slider is bolted to the front and back of the screw sleeve, and a sliding groove is provided at the front and rear ends of the bracket, and the interior of the sliding groove is slidably connected to the surface of the slider.

[0011] The above technical solution uses a slider and a groove to limit the movement of the threaded sleeve.

[0012] The present invention is further configured such that a damper is sleeved inside the spring.

[0013] By adopting the above technical solution, a damper is set to limit the spring and prevent it from continuously rebounding.

[0014] The present invention is further configured such that a damper is sleeved inside the spring.

[0015] By adopting the above technical solution, the second damper can be set to limit the second spring and prevent the second spring from continuously rebounding.

[0016] The present invention is further configured such that an elastic pad is bolted to the outer side of the clamping block and the right side of the fixing block.

[0017] The above technical solution, by setting an elastic pad, can prevent damage to the workpiece surface.

[0018] The present invention is further configured such that a bearing is rotatably connected to the bottom of the screw.

[0019] The above technical solution utilizes bearings to stabilize the screw.

[0020] The present invention is further configured such that a handle is fixedly sleeved on the top of the screw.

[0021] The above technical solution allows for easy rotation of the screw by incorporating a handle.

[0022] In summary, this utility model has the following beneficial effects: 1. This utility model achieves height adjustment through mechanical linkage, ensuring adaptability to cleaning slag layers of different thicknesses. The buffer mechanism effectively absorbs the impact force during slag removal by the electrothermal alloy, avoiding hard contact that scratches soft surfaces, protecting the slag removal structure from rigid damage, and maintaining a stable scraping impact force. It is suitable for workpiece slag materials of different thicknesses and extends the service life of key components. 2. This utility model ensures the stable clamping of workpieces of different sizes through multi-directional adaptive positioning function, effectively eliminates positioning deviation caused by non-compliance of specifications, provides sufficient clamping force while avoiding indentation damage to the workpiece surface, realizes quick assembly and disassembly, and provides a stable process benchmark for subsequent slag removal operations. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front sectional view of the overall structure of this utility model; Figure 3 This is a partial structural front sectional view of this utility model.

[0024] Reference numerals in the attached drawings: 1. Bracket; 2. Screw; 3. Screw sleeve; 4. Cylinder; 5. Connecting block; 6. Spring 1; 7. Spring 2; 8. Scraper; 9. Base; 10. Partition; 11. Clamping block; 12. Fixing block; 13. Slider; 14. Slide groove; 15. Damper 1; 16. Damper 2; 17. Elastic pad; 18. Bearing; 19. Handle. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1: refer to Figure 1 , Figure 2 , Figure 3A slag removal device for electrothermal alloy forging includes a support 1. A screw 2 is rotatably connected through the center of the top of the support 1. The screw 2 has a diameter of 20 mm, a pitch of 4 mm, a thread precision of 6 g, is made of 40Cr material, has undergone quenching and tempering treatment, and has a hardness of HRC28-32. A threaded sleeve 3 is threadedly connected to the bottom of the surface of the screw 2. The threaded sleeve 3 and the screw 2 are in clearance fit with a clearance value of 0.1-0.3 mm. The surface is coated with a MoS lubricating coating to reduce the coefficient of friction to below 0.05. A bolt is attached to the left side of the threaded sleeve 3. Cylinder 4 has a cylinder diameter of 63mm, a stroke of 100mm, a working pressure of 0.4-0.6MPa, and a thrust range of 800-1200N. A connecting block 5 is bolted to the left side of cylinder 4, and a spring 6 is bolted to the bottom of connecting block 5. Spring 6 is a high-temperature alloy spring made of GH4169 material, with a working temperature of -270-650℃, a free length of 50mm, a compression range of 10-30mm, a stiffness coefficient of 80N / mm, a maximum compression of 30mm, and a fatigue life ≥10. 5 Next, a scraper 8 is bolted to the bottom of spring 6. The scraper 8 is made of WC-Co hard alloy, with a Co content of 10%, a hardness of HRC65-70, a temperature resistance of ≥800℃, a length of 200-500mm (replaceable as needed), a width of 50mm, and a scraping blade thickness of 1-2mm. A positioning mechanism is set at the bottom of the left side of the bracket 1. Rotating the screw 2 causes the screw sleeve 3 to move up and down along the axis of the screw 2, thereby driving the cylinder 4, connecting block 5, and scraper 8 to rise and fall synchronously. During this process, the initial height of the scraper 8 can be adjusted according to the thickness of the electrothermal alloy plate and the height of the slag layer to ensure that the scraper 8 maintains a reasonable initial distance from the workpiece surface, avoiding incomplete slag removal or workpiece damage due to improper height. After the screw sleeve 3 is fixed in position, the cylinder 4 extends and retracts to generate a horizontal thrust, pushing the connecting block 5 and scraper 8 towards the surface of the electrothermal alloy plate. When the scraper 8 contacts the workpiece surface... The spring 6 at the bottom of the connecting block 5 is compressed, and the elastic deformation of the spring 6 absorbs the impact force, so that the pressure of the scraper 8 on the workpiece surface is stabilized within the preset range. The buffering effect of the spring 6 also adapts to the slight unevenness of the workpiece surface caused by forging, ensuring that the scraper 8 is always in close contact with the workpiece surface and avoiding local missed scraping. Under the continuous pressure of the spring, the scraper 8 slides relative to the workpiece surface, forcibly peeling off the hard slag layer such as high-temperature oxide slag and molten slag. During this process, the cylinder 4 can maintain a stable thrust to ensure that the spring is in a moderately compressed state, while the screw 2 locks the height position to ensure that the scraper 8 always moves within the preset working plane, forming a continuous and uniform scraping trajectory. After the work is completed, the cylinder 4 reverses its movement to drive the scraper 8 away from the workpiece, the spring 6 returns to its original position, and the screw 2 rotates in the opposite direction to raise the scraper 8, completing one work cycle.

[0027] refer to Figure 1 , Figure 2 , Figure 3The front and back sides of the screw sleeve 3 are bolted with sliders 13. The front and rear ends of the bracket 1 are provided with grooves 14, and the inside of the grooves 14 is slidably connected to the surface of the sliders 13. By setting the sliders 13 and the grooves 14, the movement of the screw sleeve 3 can be limited.

[0028] refer to Figure 1 , Figure 2 , Figure 3 The spring-6 has a damper-15 inside. By setting the damper-15, the spring-6 can be limited to prevent the spring-6 from continuously rebounding. The damping coefficient is 100 N·s / m, the maximum stroke is 30 mm, and the working temperature is -30-600℃.

[0029] refer to Figure 2 The bottom of the screw 2 is rotatably connected to a bearing 18. By setting the bearing 18, the screw 2 can be stabilized. The bearing is a deep groove ball bearing 6205 with a clearance of 0.01-0.03mm.

[0030] refer to Figure 1 , Figure 2 , Figure 3 A handle 19 is fixedly sleeved on the top of the screw 2, which allows the screw 2 to be rotated easily.

[0031] Example 2: refer to Figure 1 , Figure 2 A slag removal device for electrothermal alloy forging includes a positioning mechanism comprising a base 9. A partition 10 is bolted to the front, rear, and right sides of the top of the base 9. A spring 7 is bolted to the front, rear, and right sides inside the partition 10. The spring 7 is made of GH4169 high-temperature alloy, a nickel-based high-temperature alloy with a chemical composition containing ≥50% Ni, 17-21% Cr, and 5-7% Nb. It exhibits excellent high-temperature elastic stability, a working temperature range of -270℃ to 650℃, an elastic modulus retention rate ≥90% at 600℃, and a fatigue life ≥5×10⁻⁶. 4 Each compression cycle of 10-40mm effectively resists the attenuation of elastic properties caused by the high temperature conducted by the electrothermal alloy workpiece, ensuring stable long-term clamping force. The stiffness coefficient is 50N / mm, the free length is 80mm, and the working compression is 10-40mm. A clamping block 11 is bolted to the end of spring 7 furthest from the partition 10, with a contact area of ​​100×50mm. 2The surface roughness Ra is 0.8μm. A fixing block 12 is bolted to the left side of the top of the base 9. The base 9 serves as a basic support. The front, rear, and right partition plates 10 form a three-sided frame. The spring 7 inside the partition plate 10 is in a naturally extended state. At this time, the clamping space formed between the three clamping blocks 11 is formed. The fixing block 12 on the left is a rigid structure and is initially aligned with the clamping block 11 on the right. The operator can put the forged square plate into the clamping space. After the workpiece is put in, its right side and front and rear sides will contact the clamping blocks 11 in the corresponding directions and generate a pushing force, forcing the spring 7 to compress. The elastic restoring force of spring 2 7 reacts to clamping block 11. The height of clamping block 11 and fixing block 12 is lower than the height of square plate, so that the three clamping blocks 11 are tightly attached to the workpiece surface from the right, front and back directions. With the rigid limit of the left fixing block 12, a stable positioning is formed. The elastic characteristics of spring 2 7 can automatically adapt to electric heating alloy square plates with different size errors, avoiding workpiece deformation or positioning failure caused by rigid clamping. The clamping force is evenly distributed through the compression of spring 2 7, ensuring that the workpiece does not shift or rotate during the slag removal process, providing a stable working reference for slag removal components such as scraper 8.

[0032] refer to Figure 1 , Figure 2 The inner sleeve of spring 2 7 is fitted with damper 2 16. By setting damper 2 16, spring 2 7 can be limited to prevent continuous rebound. It is a high-temperature hydraulic damper with a damping coefficient of 80-120 N・s / m. It can be finely adjusted by the diameter of the internal throttle orifice to match the stiffness of spring 2 7. The maximum stroke is 50 mm, which matches the maximum compression of spring 2 7 of 40 mm. A safety margin of 10 mm is reserved. The working temperature range is -30℃ to 600℃. The cylinder body is made of 1Cr18Ni9Ti heat-resistant steel and filled with silicon-based high-temperature hydraulic oil with a viscosity index ≥140.

[0033] refer to Figure 1 , Figure 2 An elastic pad 17 is bolted to the outer side of the clamping block 11 and the right side of the fixing block 12. The elastic pad 17 can prevent the workpiece surface from being pinched. It is made of silicone rubber with a Shore hardness of 60±5, a thickness of 3mm, and a temperature resistance of ≥200℃.

[0034] Brief description of the operation: Rotate screw 2 to move screw sleeve 3 up and down along the axis of screw 2, which in turn drives cylinder 4, connecting block 5 and scraper 8 to rise and fall synchronously. During this process, the initial height of scraper 8 can be adjusted according to the thickness of the electrothermal alloy plate and the height of the slag layer to ensure that scraper 8 maintains a reasonable initial distance from the workpiece surface, avoiding incomplete slag removal or workpiece damage due to improper height. After the screw sleeve 3 is fixed in position, cylinder 4 extends and retracts to generate horizontal thrust, pushing connecting block 5 and scraper 8 towards the surface of the electrothermal alloy plate. When scraper 8 contacts the workpiece surface, spring 6 at the bottom of connecting block 5 is compressed, utilizing the elasticity of spring 6... The deformation absorbs the impact force, stabilizing the pressure of the scraper 8 on the workpiece surface within a preset range. The buffering effect of the spring 6 simultaneously adapts to the minor unevenness of the workpiece surface caused by forging, ensuring that the scraper 8 always fits tightly against the workpiece surface and avoids localized missed scraping. Under the continuous pressure of the spring, the scraper 8 slides relative to the workpiece surface, forcibly peeling off the attached high-temperature oxide slag, molten slag, and other hard slag layers. During this process, the cylinder 4 maintains a stable thrust, ensuring that the spring is in a moderately compressed state, while the screw 2 locks the height position, ensuring that the scraper 8 always moves within the preset working plane, forming a continuous and uniform scraping trajectory. After the work is completed, the cylinder 4 reverses its motion, causing the scraper 8 to move away from the workpiece. The spring 6 returns to its original position, and the screw 2 rotates in the opposite direction, causing the scraper 8 to rise, completing one work cycle. The base 9 serves as the basic support, and the front, rear, and right-side partitions 10 form a three-sided frame. The spring 7 inside the partition 10 is in a naturally extended state. At this time, the clamping space formed between the three clamping blocks 11 is formed. The left-side fixing block 12 is a rigid structure and is initially aligned with the right-side clamping block 11. The operator can place the forged square plate into the clamping space. After the workpiece is placed in, its right side and front and rear sides will contact the corresponding clamping blocks 11 and generate a push. The force compresses spring 7, and the elastic restoring force of spring 7 reacts to clamping block 11. The height of clamping block 11 and fixing block 12 is lower than the height of the square plate, so that the three clamping blocks 11 are tightly attached to the workpiece surface from the right, front and back directions. With the rigid limit of the left fixing block 12, a stable positioning is formed. The elastic characteristics of spring 7 can automatically adapt to the electric heating alloy square plate with different size errors, avoiding workpiece deformation or positioning failure caused by rigid clamping. The clamping force is evenly distributed through the compression of spring 7, ensuring that the workpiece does not translate or rotate during the slag removal process, and providing a stable working reference for slag removal components such as scraper 8.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A slag removal device for electrothermal alloy forging, comprising a support frame (1), characterized in that: A screw (2) is rotatably connected through the center of the top of the bracket (1). A screw sleeve (3) is threaded to the bottom of the surface of the screw (2). A cylinder (4) is bolted to the left side of the screw sleeve (3). A connecting block (5) is bolted to the left side of the cylinder (4). A spring (6) is bolted to the bottom of the connecting block (5). A scraper (8) is bolted to the bottom of the spring (6). A positioning mechanism is provided at the bottom left side of the bracket (1).

2. The slag removal device for electrothermal alloy forging according to claim 1, characterized in that: The positioning mechanism includes a base (9), a partition (10) is bolted to the front end, rear end and right side of the top of the base (9), a second spring (7) is bolted to the front end, rear end and right side inside the partition (10), a clamping block (11) is bolted to the end of the second spring (7) away from the partition (10), and a fixing block (12) is bolted to the left side of the top of the base (9).

3. The slag removal device for electrothermal alloy forging according to claim 1, characterized in that: The front and back sides of the screw sleeve (3) are bolted with sliders (13), and the front and rear ends of the bracket (1) are provided with sliding grooves (14), and the interior of the sliding grooves (14) is slidably connected to the surface of the sliders (13).

4. The slag removal device for electrothermal alloy forging according to claim 1, characterized in that: The spring (6) is internally fitted with a damper (15).

5. The slag removal device for electrothermal alloy forging according to claim 2, characterized in that: The second spring (7) is internally fitted with a second damper (16).

6. The slag removal device for electrothermal alloy forging according to claim 2, characterized in that: An elastic pad (17) is bolted to the outside of the clamping block (11) and the right side of the fixing block (12).

7. The slag removal device for electrothermal alloy forging according to claim 1, characterized in that: The bottom of the screw (2) is rotatably connected to a bearing (18).

8. The slag removal device for electrothermal alloy forging according to claim 1, characterized in that: A handle (19) is fixedly sleeved on the top of the screw (2).

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