Hardmeter frame as well as forming and assembling equipment and forming process thereof

Abstract

The invention discloses a durometer frame and forming and assembling equipment and a forming process thereof, and relates to the technical field of frame forming, the forming and assembling equipment of the durometer frame comprises a cooling box, the outer wall of the cooling box is fixedly connected with a mounting frame, the top of the cooling box is rotatably connected with a sealing cover, and the two sides of the cooling box are fixedly connected with observation windows; through the arrangement of the full shaking mechanism, under the synchronous action of a corrugated groove and a fan-shaped groove, the movement track that a transverse plate is turned over by 90 degrees after being pushed and then contracts and returns to the horizontal position is achieved, and through the cooperation with the arrangement of a cross-shaped groove, the fused part of the shell rotates discontinuously by 360 degrees and moves horizontally in a reciprocating mode finally; the assembly part continuously permeates into sand holes and air holes in the surface of the casting, so that the shell and the casting are tightly connected, the situation that bubbles are generated or contact is insufficient is prevented, the reliability of connection between the shell and the internal casting is improved, the assembly part continuously does transverse reciprocating and rotating motion in the cooling box, heat of the assembly part is rapidly lost, and then cooling and shaping are accelerated.

Description

Technical Field

[0001] The invention relates to the technical field of frame forming, and in particular to a hardness tester frame and its forming and assembling equipment and forming process. Background Art

[0002] A hardness tester is an instrument used to measure the hardness of a material. Rockwell hardness tester is a common type of hardness tester. Rockwell hardness test is a non-destructive test method mainly used to measure the hardness of metal materials. It determines the hardness of a material by applying a certain load and then according to the depth of the indentation pressed into the surface of the material. Therefore, when using it, the stability and accuracy of the hardness tester frame must be ensured. In the prior art, the frame of the hardness tester is formed by using sheet metal and integral casting. The inner cavity is integrally cast, and the outer shell is welded or bolted by sheet metal. First, the sheet metal is usually made of thin metal plates, and its rigidity and strength are relatively low. In high-precision measuring equipment, this material is prone to deformation when subjected to external pressure, vibration or temperature changes. Secondly, due to stress concentration at welding points or bolt connections, these parts may first fatigue or damage, resulting in poor structural stability. After long-term use, the measurement error increases, and the requirements of the hardness tester cannot be met. In addition, the traditional process of the hardness tester frame is to use one-piece casting. Although the overall casting has high stability and durability, the production cost is high, which is not conducive to large-scale popularization. In order to improve the corrosion resistance and appearance of the casting, the casting surface usually needs to be painted. However, because sand holes, pores, slag inclusions and other defects may be formed on the casting surface during the casting process, sand blasting, grinding and other treatments are required. Before painting, the casting surface needs to be degreased, rusted, phosphated, etc. to ensure that the paint can adhere well, which makes the pre-paint treatment very complicated, which is not conducive to improving production efficiency.

[0003] In view of this, the present invention proposes a hardness tester frame and its forming and assembling equipment and forming process to make up for and improve the deficiencies of the prior art. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a hardness tester frame and its forming and assembly equipment and forming process to solve the problems in the prior art that the hardness tester frame assembly structure has poor stability and the traditional one-piece casting cost is high and is not conducive to improving production efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: In a first aspect, the present invention provides a hardness tester frame, comprising an inner core and a shell, wherein the inner core is fixedly installed in the shell, the inner core is provided with a mounting hole for installing a test bench and a measuring component, and the shell is provided with a make way groove for making way for the test bench and the measuring component respectively; The top and rear side of the shell are respectively provided with installation windows for assembling the measuring components and the inner core, and the installation windows are closed by sealing plates.

[0006] The inner core is made of metal casting, CNC integrated molding or metal additive manufacturing; the shell is made of injection molding, 3D printing, and sheet metal processing.

[0007] In a second aspect, the present invention provides a hardness tester frame forming and assembling device, comprising a cooling box, the outer wall of which is fixedly connected to a mounting frame, the top of which is rotatably connected to a sealing cover, and both sides of the cooling box are fixedly connected to observation windows, and further comprising: The fully shaking mechanism is used to evenly fit the molten part of the shell to the casting surface by intermittent rotation and push-pull when assembling the hardness tester; Local inspection mechanism, used to perform local appearance inspection while the assembly is rotating; The vibration dust removal mechanism is used to vibrate the casting to be processed and remove surface dust while the assembly is pushed and pulled back and forth.

[0008] Preferably, the fully shaking mechanism includes a servo motor, the servo motor is fixedly connected to the top of the mounting frame, the output end of the servo motor is fixedly connected to a turntable, a side of the turntable away from the servo motor is provided with a fan-shaped groove, the axis of the turntable is rotatably connected to the inner wall of the mounting frame, the side of the turntable close to the servo motor is fixedly connected to a column, and an outer wall of the column is provided with a corrugated groove.

[0009] Preferably, the fully shaking mechanism also includes a fixed plate fixedly connected to the top of the mounting frame, the fixed plate is rotatably connected to a connecting sleeve on the side close to the turntable, the connecting sleeve is fixedly connected to a slider on the side close to the turntable, the slider is slidably connected in the fan-shaped groove, the inner wall of the connecting sleeve is slidably connected to a push rod, the push rod is fixedly connected to a cross plate on the side away from the connecting sleeve, the cross plate is slidably engaged with the inner wall of the cooling box, the outer wall of the push rod is fixedly connected to an L-shaped rod, the outer wall of the L-shaped rod is slidably connected to the inner wall of the fixed plate, the L-shaped rod is fixedly connected to a sliding rod on the side away from the fixed plate, and the outer wall of the sliding rod is slidably connected to the corrugated groove.

[0010] Preferably, the fully shaking mechanism also includes a disc gear slidably engaged with the outer wall of the horizontal plate, a cross groove of a size matching the horizontal plate is opened at the center of the disc gear, both sides of the disc gear are slidably connected to limiting slot plates, the two limiting slot plates are fixedly connected to a telescopic rod on one side close to the horizontal plate, the two telescopic rods are slid through the outer wall of the cooling box on the other side away from the disc gear, the outer wall of the telescopic rod is sleeved with a first spring, one end of the two first springs is fixedly connected to the outer wall of the cooling box, and the other end of the first spring is fixedly connected to the end of the telescopic rod.

[0011] Preferably, the fully shaking mechanism also includes a support plate detachably mounted on the middle part of the disc gear, a clamping member is fixedly connected to the side of the support plate away from the disc gear, a long side gear is meshedly connected to the edge of the disc gear, the long side gear is rotatably connected to the inner wall of the cooling box at its axis, and refrigerators are fixedly connected to both sides of the top of the cooling box.

[0012] Preferably, the local inspection mechanism includes a rotating rod, one side of the rotating rod is fixedly connected to the center of the long side gear, the other side of the rotating rod is fixedly connected to the main bevel gear, the outer wall of the main bevel gear is meshingly connected to the secondary bevel gear, the top of the secondary bevel gear is fixedly connected to a reciprocating shaft, and the reciprocating shaft and the side of the rotating rod close to the main bevel gear are both rotatably connected to the corner of the cooling box.

[0013] Preferably, the local inspection mechanism also includes a sliding plate slidably connected to the outer wall of the reciprocating shaft, the outer wall of the reciprocating shaft is provided with a reciprocating spiral groove, the inner surface of the sliding plate is fixedly connected with a protrusion, the outer wall of the protrusion is slidably connected to the reciprocating spiral groove, the side of the sliding plate away from the disc gear is slidably connected to the cooling box, and the side of the sliding plate away from the cooling box is fixedly connected with an industrial camera.

[0014] Preferably, the vibrating dust removal mechanism includes an extrusion rod, a side of the extrusion rod close to the turntable is fixedly connected to the outer wall of the L-shaped rod, the outer wall of the extrusion rod abuts against a pressure block, a side of the pressure block away from the extrusion rod is fixedly connected to a leak plate, the outer wall of the leak plate is slidably connected to an outer frame, a plurality of second springs are fixedly connected to the bottom of the leak plate, the bottoms of the plurality of second springs are fixedly connected to the inner wall of the outer frame, and the bottom of the outer frame is fixedly connected to the mounting frame.

[0015] Preferably, the fan-shaped groove is arranged at an eccentric point of the rotating disk 53 .

[0016] In a third aspect, the present invention provides a forming process for a hardness tester frame, comprising the following steps: Step 1: Making the inner cavity and outer shell: Heat the selected metal material to the melting point, and then pour it into the pre-prepared mold. After the casting is completed, clamp the casting on the top of the leak plate, and vibrate to clean the debris and dust on the surface of the casting. Then, heat the plastic or composite material to a molten state and inject it into the two pre-prepared molds. During the cooling and solidification process, the molten material forms the shape of half of the outer shell. It should be noted that the casting space reserved inside the outer shell is smaller than the size of the actual inner cavity casting, so that the inner surface of the outer shell can fit more closely with the casting after melting. After the injection molding is completed, it needs to be cooled and demolded; Step 2: Positioning and fixing of assembly: First, roast or electrically heat the cleaned inner cavity casting, then place the support plate flat on the table, and then fix half of the outer shell through the ordinary clamp of the clamping piece, then clamp the heated casting through the high-temperature resistant clamp of the clamping piece, place it in the middle of the outer shell without fitting the outer shell, and finally cover the other half of the outer shell surface on the previous outer shell surface, and the fitting parts of the two outer shells need to be flame-treated to reach a molten state, tighten the clamps of the clamping piece, so that the casting contacts the outer shells on both sides, the inner surface of the outer shell gradually melts, wraps the inner cavity casting, and the edges of the two outer shells are also tightly fitted. After positioning, place the assembly in the cooling box, connect it to the disc gear through the support plate, rotate and reciprocate the disc gear so that the molten plastic or composite material fully penetrates into the pores of the casting under the influence of gravity, and finally is accelerated to cool and fix; Step 3: Sealing and final inspection: Use industrial cameras to ensure that the connection between the inner cavity and the outer shell is well sealed to prevent the external environment from interfering with the internal structure during use. After assembly, use flame treatment to make the outer shell surface smooth, then paint to beautify the appearance and increase protection and sealing. After painting, conduct a final inspection to ensure that all parts are correctly connected without looseness, and that the overall structure is stable and the protection performance meets the design requirements.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. After the assembly is clamped and installed, the shaking mechanism is fully set. Since the corrugated groove is in the shape of a circular ring connected end to end, and the parts close to the edges of the cylinder on both sides are set parallel to the cylinder, the corrugated groove can drive the cross plate to reciprocate and extend, and the fan-shaped groove is set at the eccentric point of the turntable, and is set to change from narrow to wide from close to the center of the turntable to far from the center of the turntable. Therefore, the fan-shaped groove drives the cross plate to do a reciprocating 90-degree flipping movement. Under the synchronous action of the corrugated groove and the fan-shaped groove, the movement trajectory of the cross plate flipping 90 degrees after being pushed forward and then retracting to the horizontal position is realized. Combined with the setting of the cross groove, the melting part of the shell is finally made 360 ​​degrees. Intermittent rotation and horizontal reciprocating movement continuously penetrate into the sand holes and pores on the surface of the casting, so that the shell and the casting are tightly connected to prevent bubbles or insufficient contact, thereby increasing the reliability of the connection between the shell and the internal casting. The injection molded shell itself is more resistant to high temperature and pressure changes than the sheet metal shell, and is not easy to deform. The injection molded shell is fully and tightly connected to the surface of the casting, which can better meet the requirements of the hardness tester in terms of stability and durability. In addition, the assembly parts continuously reciprocate and rotate horizontally inside the cooling box, which also makes the air inside the cooling box fluid, accelerates the heat loss of the assembly parts, and then accelerates cooling and shaping, which can improve assembly efficiency. 2. Through the setting of the local inspection mechanism, during the reciprocating and rotating motion of the disc gear, since the long side gear is always meshed with the disc gear and the disc gear rotates intermittently, the industrial camera moves only a short distance each time when it reciprocates on the reciprocating shaft through the convex block, and then stops for a period of time, which is convenient for the industrial camera to capture the local details of the assembly and conduct appearance inspection in advance, so that the staff can directly optimize the details in the next operation, saving the time of separate inspection, and with the rotation of the assembly itself, all ranges of the shell except the installation surface can be gradually covered, which improves the comprehensiveness of the inspection; 3. Through the setting of the vibration dust removal mechanism, the extrusion rod can be telescopically moved while the driving device drives the assembly to move and cool. Since the pressing block is set to be an isosceles trapezoidal shape with a circular arc at the top and the bottom is consistent with the height of the extrusion rod, each time the extrusion rod moves through the pressing block, the pressing block will be squeezed and moved downward. Finally, the leakage plate is driven by the pressing block to vibrate up and down continuously, thereby shaking off the slag debris and dust on the surface of the casting placed on the leakage plate, simplifying the casting cleaning process. Only the slag debris and dust need to be removed, and no sandblasting and polishing are required, which is conducive to the smooth progress of the assembly steps and improves the production efficiency of continuous assembly; 4. The traditional one-piece casting is divided into two parts, the inner cavity and the outer shell, by the method of injection molding and metal casting. The inner cavity still adopts the original one-piece casting design, while the outer shell is made by injection molding and assembled after production. The stability and protection can meet the requirements of the hardness tester, while saving production costs. In addition, the scratches on the surface of the injection molded shell are easy to remove. Flame treatment can be used to briefly burn the surface to change its surface properties, improve the surface wettability and adhesion, and make the surface smooth and flat. Compared with the complex pre-paint treatment of the traditional one-piece casting surface, the surface of the injection molded shell is easier to paint. The same principle of flame treatment is used to burn the shell surface smoothly, which can adhere to the paint well and improve the efficiency of painting the paint surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 It is a schematic diagram of a side-view stereoscopic structure of the present invention; Figure 3 The present invention shows Figure 2 Enlarged view of point A in the middle; Figure 4 It is a three-dimensional cross-sectional view of the cooling box shown in the present invention; Figure 5 The present invention shows Figure 4 Enlarged view of point B in the middle; Figure 6 It is a schematic diagram of the structure of the bump connection shown in the present invention; Figure 7 It is a structural schematic diagram of the connection of the support plate shown in the present invention; Figure 8 It is a structural schematic diagram of the cross-shaped groove connection shown in the present invention; Fig. 9 It is a structural schematic diagram of the connection part of the connecting sleeve shown in the present invention; Fig.10 The present invention shows Fig. 9 Enlarged view of point C in the middle; Fig.11 It is a structural schematic diagram of the connection of the pressing block shown in the present invention; Fig.12 It is a structural schematic diagram of the hardness tester frame of the present invention; Fig.13 It is an exploded schematic diagram of the hardness tester frame of the present invention.

[0019] The numbers in the figure are: 1. Cooling box; 2. Observation window; 3. Sealing cover; 4. Mounting frame; 5. Fully shake mechanism; 51. Servo motor; 52. Cylinder; 53. Turntable; 54. First spring; 55. Sliding rod; 56. Corrugated groove; 57. L-shaped rod; 58. Fan-shaped groove; 59. Limiting groove plate; 510. Long side gear; 511. Disc gear; 512. Clamping piece; 513. Refrigerator; 514. Support plate; 515. Cross groove; 516. Fixed plate; 517. Telescopic rod; 518. Sliding block; 519. Connecting sleeve; 520. Push rod; 521. Horizontal plate; 6. Local inspection mechanism; 61. Rotating rod; 62. Main bevel gear; 63. Sub bevel gear; 64. Reciprocating shaft; 65. Sliding plate; 66. Industrial camera; 67. Bump; 7. Vibrating dust removal mechanism; 71. Outer frame; 72. Leakage plate; 73. Extrusion rod; 74. Second spring; 75. Pressing block.

[0020] 8. Shell; 81. Inner core; 82. Installation window; 83. Closing plate; 84. Test bench; 85. Measuring assembly; 86. Clearance groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1 of the present invention Please refer to Figures 1 to 11 As shown: In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a hardness tester frame forming and assembling device, including a cooling box 1, a mounting frame 4 is fixedly connected to the outer wall of the cooling box 1, a sealing cover 3 is rotatably connected to the top of the cooling box 1, and observation windows 2 are fixedly connected to both sides of the cooling box 1, and also includes: The fully shaking mechanism 5 is used to evenly fit the molten part of the shell to the surface of the casting by intermittent rotation and push-pull when assembling the hardness meter; A local inspection mechanism 6, used to perform a local appearance inspection while the assembly is rotating; A vibration dust removal mechanism 7 is used to vibrate the casting to be processed and remove surface dust while the assembly is pushed and pulled back and forth; The fully shaking mechanism 5 includes a servo motor 51, which is fixedly connected to the top of the mounting frame 4. The output end of the servo motor 51 is fixedly connected to a turntable 53, and a fan-shaped groove 58 is provided on the side of the turntable 53 away from the servo motor 51. The axis of the turntable 53 is rotatably connected to the inner wall of the mounting frame 4. The side of the turntable 53 close to the servo motor 51 is fixedly connected to a cylinder 52, and a corrugated groove 56 is provided on the outer wall of the cylinder 52. The fully shaking mechanism 5 also includes a fixing plate 516 fixedly connected to the top of the mounting frame 4, a connecting sleeve 519 is rotatably connected to the side of the fixing plate 516 close to the turntable 53, a slider 518 is fixedly connected to the side of the connecting sleeve 519 close to the turntable 53, the slider 518 is slidably connected in the fan-shaped groove 58, a push rod 520 is slidably connected to the inner wall of the connecting sleeve 519, a side of the push rod 520 away from the connecting sleeve 519 is fixedly connected to a transverse plate 521, the transverse plate 521 is slidably connected to the inner wall of the cooling box 1, an L-shaped rod 57 is fixedly connected to the outer wall of the push rod 520, the outer wall of the L-shaped rod 57 is slidably connected to the inner wall of the fixing plate 516, a side of the L-shaped rod 57 away from the fixing plate 516 is fixedly connected to the sliding rod 55, and the outer wall of the sliding rod 55 is slidably connected in the corrugated groove 56; The fully shaking mechanism 5 also includes a disc gear 511 slidably engaged with the outer wall of the horizontal plate 521, a cross groove 515 having a size matching the horizontal plate 521 is provided at the center of the disc gear 511, both sides of the disc gear 511 are slidably connected to the limiting slot plates 59, the two limiting slot plates 59 are fixedly connected to the side close to the horizontal plate 521 with telescopic rods 517, the two telescopic rods 517 are slidably connected to the side away from the disc gear 511 and penetrate the outer wall of the cooling box 1, the outer walls of the telescopic rods 517 are sleeved with first springs 54, one end of the two first springs 54 are fixedly connected to the outer wall of the cooling box 1, and the other end of the first springs 54 are fixedly connected to the end of the telescopic rods 517; The fully shaking mechanism 5 also includes a support plate 514 detachably mounted on the middle of the disc gear 511, a clamping member 512 is fixedly connected to one side of the support plate 514 away from the disc gear 511, a long side gear 510 is meshedly connected to the edge of the disc gear 511, the axis of the long side gear 510 is rotatably connected to the inner wall of the cooling box 1, and refrigerators 513 are fixedly connected to both sides of the top of the cooling box 1; The fan-shaped groove 58 is arranged at the eccentric point of the rotating disk 53; Among them: the fan-shaped groove 58 is set to change from narrow to wide from the center of the turntable 53 to the center away from the turntable 53, the corrugated groove 56 is generally in the shape of a circular ring connected end to end, and the parts close to the edges of both sides of the cylinder 52 are set parallel to the cylinder 52, and a limiting groove is provided on the outer wall of the push rod 520. The push rod 520 slides axially on the inner wall of the connecting sleeve 519 through the limiting groove and cannot rotate on the inner wall of the connecting sleeve 519. The clamping member 512 is mainly composed of a high-temperature resistant clamp, an ordinary clamp and a driving device, all of which are prior arts. The clamping member 512 is appropriately distributed on the surface of the support plate 514, and is used to clamp and fix the position of the outer shell and the internal casting. The long side of the long side gear 510 is designed to ensure that the disc gear 511 is always meshed with the long side gear 510 before and after movement.

[0023] The effects achieved by this embodiment are as follows: In the prior art, a design of sheet metal plus integral casting is adopted, the inner cavity is integrally cast, and the outer shell is welded with sheet metal or fixed with bolts, but its structural stability is poor, and the measurement error increases after long-term use, and it cannot meet the requirements of the hardness tester. Compared with the prior art, through the implementation of this embodiment, a sufficient shaking mechanism 5 is set. Under the synchronous action of the corrugated groove 56 and the fan-shaped groove 58, the horizontal plate 521 is pushed and flipped 90 degrees, and then retracted to return to the horizontal position. The setting of the cross groove 515 is combined with the molten part of the outer shell to finally make a 360-degree intermittent rotation and horizontal reciprocating movement, and continuously penetrate into the sand holes and pores on the surface of the casting, so that the outer shell is tightly connected to the casting, and bubbles or insufficient contact are prevented, thereby increasing the reliability of the connection between the outer shell and the internal casting.

[0024] For further examples, please refer to Figures 4 to 6 As shown: The local inspection mechanism 6 includes a rotating rod 61, one side of the rotating rod 61 is fixedly connected to the center of the long side gear 510, the other side of the rotating rod 61 is fixedly connected to the main bevel gear 62, the outer wall of the main bevel gear 62 is meshedly connected to the secondary bevel gear 63, the top of the secondary bevel gear 63 is fixedly connected to the reciprocating shaft 64, the reciprocating shaft 64 and the side of the rotating rod 61 close to the main bevel gear 62 are both rotatably connected to the corner of the cooling box 1; The local inspection mechanism 6 also includes a sliding plate 65 slidably connected to the outer wall of the reciprocating shaft 64, the outer wall of the reciprocating shaft 64 is provided with a reciprocating spiral groove, the inner surface of the sliding plate 65 is fixedly connected with a protrusion 67, the outer wall of the protrusion 67 is slidably connected in the reciprocating spiral groove, the side of the sliding plate 65 away from the disc gear 511 is slidably connected to the cooling box 1, and the side of the sliding plate 65 away from the cooling box 1 is fixedly connected with an industrial camera 66; The protrusion 67 is used to ensure that the sliding plate 65 can slide back and forth on the outer wall of the reciprocating shaft 64 .

[0025] The effects achieved by this embodiment are as follows: In the prior art, although the traditional one-piece casting has high stability and durability of the overall casting, the production cost is high, which is not conducive to large-scale popularization. Compared with the prior art, through the implementation of this embodiment, the local inspection mechanism 6 is set to enable the industrial camera 66 to reciprocate only a short distance each time during the reciprocating and rotating motion of the disc gear 511, and then stop for a period of time, so that the industrial camera 66 can capture the local details of the assembly and conduct appearance inspection in advance, so that the staff can directly optimize the details in the next operation and save the time of separate inspection. At the same time, the injection molding plus metal casting method can meet the requirements of the hardness tester in terms of stability and protection, while saving production costs.

[0026] Further examples: Please refer to Figure 1 , Figure 4 , Fig.11 As shown: The vibrating dust removal mechanism 7 includes an extrusion rod 73, the side of the extrusion rod 73 close to the turntable 53 is fixedly connected to the outer wall of the L-shaped rod 57, the outer wall of the extrusion rod 73 is abutted with a pressure block 75, and the side of the pressure block 75 away from the extrusion rod 73 is fixedly connected to a leak plate 72, the outer wall of the leak plate 72 is slidably connected to the outer frame 71, and the bottom of the leak plate 72 is fixedly connected to a plurality of second springs 74, and the bottoms of the plurality of second springs 74 are all fixedly connected to the inner wall of the outer frame 71, and the bottom of the outer frame 71 is fixedly connected to the mounting frame 4.

[0027] The pressing block 75 is configured to be an isosceles trapezoid with a circular arc at the top, and the bottom of the pressing block 75 is at the same height as the squeezing rod 73 , so that the squeezing rod 73 can reciprocately squeeze the pressing block 75 , causing the pressing block 75 to reciprocate up and down.

[0028] The effects achieved by this embodiment are as follows: In the prior art, through the traditional one-piece casting method, the surface of the casting needs to be processed before painting, which is very complicated and is not conducive to improving production efficiency. Compared with the prior art, through the implementation of this embodiment, a vibrating dust removal mechanism 7 is set to be able to drive the assembly to move and cool while the driving device drives the assembly to move, and the extrusion rod 73 can be telescopically moved. Finally, the pressure block 75 drives the leak plate 72 to vibrate up and down continuously, and then the slag debris and dust on the surface of the casting placed on the leak plate 72 are shaken off, simplifying the casting cleaning process. The principle of flame treatment can be used to burn the shell surface smooth, which can adhere to the paint well and improve the efficiency of painting the paint surface.

[0029] Embodiment 2 of the present invention A forming process of a hardness tester frame comprises the following steps: Step 1: Making the inner cavity and the outer shell: Heat the selected metal material to the melting point, and then pour it into the pre-prepared mold. After the casting is completed, the casting is clamped and installed on the top of the leak plate 72, and the debris and dust on the surface of the casting are cleaned by vibration. Then, the plastic or composite material is heated to a molten state and injected into the two pre-prepared molds. During the cooling and solidification process, the molten material forms the shape of half of the outer shell. It should be noted that the casting space reserved inside the outer shell is smaller than the size of the actual inner cavity casting, so that the inner surface of the outer shell can fit more closely with the casting after melting. After the injection molding is completed, it needs to be cooled and demolded; Step 2: Positioning and fixing of assembly: First, the cleaned inner cavity casting is roasted or electrically heated, and then the support plate 514 is placed flat on the table, and then the half shell is fixed by the ordinary clamp of the clamp 512, and then the heated casting is clamped by the high temperature resistant clamp of the clamp 512, and placed in the middle of the shell without fitting the shell, and finally the other half of the shell is covered on the surface of the previous shell, and the fitting parts of the two shells need to be flame treated to reach a molten state, tighten the clamps of the clamp 512, so that the casting contacts the shells on both sides, and the inner surface of the shell gradually melts, wrapping the inner cavity casting, and the edges of the two shells are also tightly fitted. After positioning, the assembly is placed in the cooling box 1, connected to the disc gear 511 through the support plate 514, and the disc gear 511 is rotated and reciprocated to allow the molten plastic or composite material to fully penetrate into the pores of the casting under the influence of gravity, and finally accelerated cooling and fixing; Step 3: Sealing and final inspection: Use industrial camera 66 to ensure that the connection between the inner cavity and the outer shell is well sealed to prevent the external environment from interfering with the internal structure during use. After assembly, use flame treatment to make the surface of the outer shell smooth, and then paint to beautify the appearance and increase protection and sealing. After painting, conduct a final inspection to ensure that all parts are correctly connected without looseness, and that the overall structure is stable and the protection performance meets the design requirements.

[0030] Working principle: When in use, after the support plate 514 with the assembly of the shell and the casting is installed on the disc gear 511, the servo motor 51 is started through the external control system, and the servo motor 51 drives the turntable 53 and the cylinder 52 to rotate synchronously. Since there is a slide bar 55 sliding in the corrugated groove 56, and the corrugated groove 56 is in the shape of a circular ring connected end to end as a whole, and the parts close to the edges of the cylinder 52 on both sides are arranged parallel to the cylinder 52, when the cylinder 52 rotates, if the slide bar 55 is in the parallel groove on one side of the edge, the position of the slide bar 55 remains unchanged. If the slide bar 55 is in the middle inclined groove, it will be driven to move toward the parallel groove on the other side of the cylinder 52. That is, when the cylinder 52 rotates, the slide bar 55 moves back and forth under the limiting action of the L-shaped rod 57, so that the L-shaped rod 57 and the push rod 520 and the cross plate 521 make reciprocating movements synchronously. At the same time, during the rotation of the turntable 53, since the slider 518 is slidably connected to the inner wall of the fan-shaped groove 58, and the fan-shaped groove 58 is set to change from narrow to wide from the center of the turntable 53 to the center of the turntable 53, when the slider 518 slides to the narrow side of the fan-shaped groove 58, the position of the slider 518 remains unchanged. When the slider 518 slides to the straight groove at the bend, the slider 518 will drive the connecting sleeve 519 to rotate ninety degrees, and then drive the push rod 520 and the cross plate 521 to flip ninety degrees through the connecting sleeve 519. Then the slider 518 transitions from the narrow side of the fan-shaped groove 58 to the straight groove on the other side, and finally resets, so that the cross plate 521 is also reset from the vertical position to the horizontal position, that is, when the turntable 53 rotates. The horizontal plate 521 will move from the horizontal position to the vertical position, and then return to the horizontal position according to the original trajectory, and perform reciprocating motion in this way. Therefore, in actual operation, the corrugated groove 56 drives the horizontal plate 521 to reciprocate and extend, and the fan-shaped groove 58 drives the horizontal plate 521 to do a reciprocating 90-degree flipping motion. The two are performed synchronously to realize the motion trajectory of the horizontal plate 521 being pushed forward and flipped 90 degrees, and then retracted and reset to the horizontal position. Therefore, when the horizontal plate 521 acts on the cross groove 515 at the center of the disc gear 511, the horizontal plate 521 can be first pushed and horizontally engaged in the cross groove 515, and the disc gear 511 is pushed forward as a whole. At this time, the telescopic rod 517 extends into the cooling box 1 to compress the first spring 54, and then the horizontal plate 521 is flipped 90 degrees, with The movable disc gear 511 rotates ninety degrees in the limiting slot plate 59, and then the cross plate 521 is retracted. After the cross plate 521 is separated from the cross slot 515, the cross plate 521 resumes its horizontal position. At this time, the disc gear 511 is pulled back to its initial position under the elastic force of the first spring 54, and the disc gear 511 is repeatedly pushed forward, rotated ninety degrees, and then retracted, so that the assembly installed on the disc gear 511 moves synchronously. In order to ensure the fit of the inner and outer molds, the internal casting is heated during assembly, so that the place where the outer shell is close to the casting is in a molten state. Therefore, under the action of gravity, the liquid molten part usually flows downward, so the molten part can be reciprocated in the horizontal direction through the pushing and retracting movement.By intermittently rotating 90 degrees, the molten part is always in contact with the casting surface in the vertical direction, so that the molten part continuously penetrates into the sand holes and pores on the casting surface, so that the shell and the casting are closely connected, thereby improving the structural stability, until the fixed position is accelerated by the external cold air, and the disc gear 511 and the assembly continuously reciprocate and rotate horizontally inside the cooling box 1, so that the air inside the cooling box 1 has fluidity, so that the heat of the assembly is accelerated to lose, further accelerating the cooling effect and improving the assembly efficiency; Please refer to the above working process Figures 1 to 4 , Figures 7 to 10 .

[0031] Furthermore, whenever the disc gear 511 rotates, the long side gear 510 can be driven to rotate, and then the rotating rod 61 and the main bevel gear 62 are driven to rotate synchronously through the long side gear 510, and then the auxiliary bevel gear 63 and the reciprocating shaft 64 are driven to rotate synchronously by the main bevel gear 62. When the reciprocating shaft 64 rotates, the protrusion 67 located in its reciprocating spiral groove will be squeezed and slid, and then the protrusion 67 drives the sliding plate 65 to move. Since the sliding plate 65 slides on the cooling box 1, the protrusion 67 can drive the sliding plate 65 to slide up and down, and the industrial camera 66 can slide up and down through the sliding plate 65. In addition, due to the intermittent rotation of the disc gear 511, the industrial camera 66 stops for a period of time after moving a short distance each time, so that the industrial camera 66 can capture the local details of the assembly and conduct appearance inspection in advance, which is conducive to shortening the time of the next step. Please refer to the above working process Figures 4 to 6 .

[0032] The locking cam 75 is in the form of a plurality of locking cams 76 which are in the form of a plurality of locking cams 77 and a plurality of locking cams 78 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 78 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 78 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams 79 which are in the form of a plurality of locking cams Please refer to the above working process Figure 1 , Figure 4 , Fig.11 .

[0033] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0034] Embodiment 3 of the present invention The present application embodiment proposes a hardness tester framework, such as Fig.12 and Fig.13 As shown, it includes an inner core 81 and a shell 8, the inner core 81 is fixedly installed in the shell 8, the inner core 81 is provided with mounting holes for mounting a test bench 84 and a measuring assembly 85, and the shell 8 is provided with a making way slot 86 for making way for the test bench 84 and the measuring assembly 85 respectively; The top and rear side of the housing 8 are respectively provided with installation windows 82 for assembling the measuring assembly 85 and the inner core 81, and the installation windows 82 are closed by a sealing plate 83; The inner core 81 is made of metal casting, CNC integrated molding or metal additive manufacturing; the shell 8 is made of injection molding, 3D printing or sheet metal processing; The hardness tester frame in the prior art does not distinguish between the inner core and the shell, and is directly formed by metal casting. However, metal casting has the disadvantages of high cost, environmental pollution, and complex casting surface treatment (such as painting). Therefore, the present application proposes a design of splitting the hardness tester frame into two parts, the inner core and the shell. In order to achieve sufficient strength, the inner core part can continue to use the metal casting process, but the outer shell part can be designed by injection molding. Compared with the all-in-one casting method of the prior art, the casting amount is reduced, and the surface treatment of the shell is also simpler, thereby reducing costs; In addition, the inner core part can also be manufactured by CNC one-piece molding process or metal additive manufacturing, which can also have sufficient strength and high precision and meet the requirements of hardness tester measurement; In addition, the shell part can also be processed by sheet metal, that is, multiple metal plates are welded or bolted to form a shell structure. This method has higher requirements during assembly to avoid the problem of increased measurement errors caused by structural deformation after long-term use.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hardness tester frame, characterized in that: The invention comprises an inner core (81) and a shell (8), wherein the inner core (81) is fixedly mounted in the shell (8), the inner core (81) is provided with mounting holes for mounting a test bench (84) and a measuring component (85), and the shell (8) is provided with clearance grooves (86) for respectively making way for the test bench (84) and the measuring component (85); The top and rear side of the housing (8) are respectively provided with installation windows (82) for assembling the measuring component (85) and the inner core (81), and the installation windows (82) are closed by a sealing plate (83).

2. A hardness tester frame according to claim 1, characterized in that: The inner core (81) is made by metal casting, CNC integrated molding or metal additive manufacturing; the shell (8) is made by injection molding, 3D printing or sheet metal processing.

3. A hardness tester frame forming and assembling device, used for forming and assembling a hardness tester frame as claimed in any one of claims 1 to 2, comprising a cooling box (1), the outer wall of the cooling box (1) is fixedly connected to a mounting frame (4), the top of the cooling box (1) is rotatably connected to a sealing cover (3), and both sides of the cooling box (1) are fixedly connected to observation windows (2), characterized in that: Also included are: A fully shaking mechanism (5) is used to evenly fit the molten part of the shell to the surface of the casting by intermittent rotation and push-pull when assembling the hardness meter; A local inspection mechanism (6) is used to perform a local appearance inspection while the assembly is rotating; The vibration dust removal mechanism (7) is used to vibrate the casting to be processed and remove surface dust while the assembly is pushed and pulled back and forth.

4. The hardness tester frame forming and assembling equipment according to claim 3, characterized in that: The fully shaking mechanism (5) comprises a servo motor (51), the servo motor (51) is fixedly connected to the top of the mounting frame (4), the output end of the servo motor (51) is fixedly connected to a turntable (53), a side of the turntable (53) away from the servo motor (51) is provided with a fan-shaped groove (58), the axis of the turntable (53) is rotatably connected to the inner wall of the mounting frame (4), the side of the turntable (53) close to the servo motor (51) is fixedly connected to a cylinder (52), and the outer wall of the cylinder (52) is provided with a corrugated groove (56); The fan-shaped groove (58) is arranged at an eccentric point position of the rotating disk (53).

5. The hardness tester frame forming and assembling equipment according to claim 4, characterized in that: The fully shaking mechanism (5) further comprises a fixing plate (516) fixedly connected to the top of the mounting frame (4); a connecting sleeve (519) is rotatably connected to a side of the fixing plate (516) close to the rotating disk (53); a sliding block (518) is fixedly connected to a side of the connecting sleeve (519) close to the rotating disk (53); the sliding block (518) is slidably connected to the fan-shaped groove (58); a push rod (520) is slidably connected to the inner wall of the connecting sleeve (519); and the push rod (520) ) is fixedly connected to a transverse plate (521) on a side away from the connecting sleeve (519), the transverse plate (521) is slidably engaged with the inner wall of the cooling box (1), the outer wall of the push rod (520) is fixedly connected to an L-shaped rod (57), the outer wall of the L-shaped rod (57) is slidably engaged with the inner wall of the fixing plate (516), the side of the L-shaped rod (57) away from the fixing plate (516) is fixedly connected to a sliding rod (55), the outer wall of the sliding rod (55) is slidably engaged with the corrugated groove (56); The vibrating dust removal mechanism (7) comprises an extrusion rod (73), a side of the extrusion rod (73) close to the rotating disk (53) is fixedly connected to the outer wall of the L-shaped rod (57), the outer wall of the extrusion rod (73) is abutted against a pressing block (75), a side of the pressing block (75) away from the extrusion rod (73) is fixedly connected to a leaking plate (72), the outer wall of the leaking plate (72) is slidably connected to an outer frame (71), a plurality of second springs (74) are fixedly connected to the bottom of the leaking plate (72), the bottoms of the plurality of second springs (74) are all fixedly connected to the inner wall of the outer frame (71), and the bottom of the outer frame (71) is fixedly connected to the mounting frame (4).

6. A hardness tester frame forming and assembling device according to claim 5, characterized in that: The fully shaking mechanism (5) further comprises a disc gear (511) slidably engaged with the outer wall of the horizontal plate (521); a cross-shaped groove (515) having a size matching that of the horizontal plate (521) is provided at the center of the disc gear (511); both sides of the disc gear (511) are slidably engaged with limit slot plates (59); the two limit slot plates (59) are fixedly engaged with telescopic rods (517) on one side close to the horizontal plate (521); the two telescopic rods (517) are slidably engaged with the outer wall of the cooling box (1) on one side away from the disc gear (511); the outer walls of the telescopic rods (517) are sleeved with first springs (54); one end of each of the first springs (54) is fixedly engaged with the outer wall of the cooling box (1); and the other end of each of the first springs (54) is fixedly engaged with the end of the telescopic rods (517).

7. A hardness tester frame forming and assembling device according to claim 6, characterized in that: The fully shaking mechanism (5) further comprises a support plate (514) detachably mounted on the middle of the disc gear (511); a clamping member (512) is fixedly connected to the side of the support plate (514) away from the disc gear (511); a long side gear (510) is meshingly connected to the edge of the disc gear (511); the long side gear (510) is rotatably connected to the inner wall of the cooling box (1) at its axis; and refrigerators (513) are fixedly connected to both sides of the top of the cooling box (1).

8. The hardness tester frame forming and assembling equipment according to claim 7, characterized in that: The local inspection mechanism (6) comprises a rotating rod (61), one side of the rotating rod (61) is fixedly connected to the center of the long side gear (510), the other side of the rotating rod (61) is fixedly connected to a main bevel gear (62), the outer wall of the main bevel gear (62) is meshingly connected to a secondary bevel gear (63), the top of the secondary bevel gear (63) is fixedly connected to a reciprocating shaft (64), and the reciprocating shaft (64) and a side of the rotating rod (61) close to the main bevel gear (62) are both rotatably connected to a corner of the cooling box (1).

9. A hardness tester frame forming and assembling device according to claim 8, characterized in that: The local inspection mechanism (6) further comprises a sliding plate (65) slidably connected to the outer wall of the reciprocating shaft (64); the outer wall of the reciprocating shaft (64) is provided with a reciprocating spiral groove; the inner surface of the sliding plate (65) is fixedly connected to a protrusion (67); the outer wall of the protrusion (67) is slidably connected to the reciprocating spiral groove; the side of the sliding plate (65) away from the disc gear (511) is slidably connected to the cooling box (1); and the side of the sliding plate (65) away from the cooling box (1) is fixedly connected to an industrial camera (66).

10. According to the hardness tester frame forming and assembling equipment described in claims 3-9, a hardness tester frame forming process is proposed, characterized in that: The following steps are involved: Step 1: Making the inner cavity and the outer shell: The selected metal material is heated to the melting point and then poured into a pre-prepared mold. After the casting is completed, the casting is clamped and installed on the top of the leak plate (72). The debris and dust on the surface of the casting are cleaned by vibration. Then, the plastic or composite material is heated to a molten state and injected into two pre-prepared molds. During the cooling and solidification process, the molten material forms the shape of half of the outer shell. It should be noted that the casting space reserved inside the outer shell is smaller than the size of the actual inner cavity casting, so that the inner surface of the outer shell can fit more closely with the casting after melting. After the injection molding is completed, it needs to be cooled and demolded; Step 2: Positioning and fixing of assembly: First, the cleaned inner cavity casting is roasted or electrically heated, and then the support plate (514) is placed flat on the table, and then half of the outer shell is fixed by a common clamp of the clamp (512), and then the heated casting is clamped by the high temperature resistant clamp of the clamp (512), and placed in the middle of the outer shell without being attached to the outer shell, and finally the other half of the outer shell is covered on the surface of the previous outer shell, and the part where the two outer shells are attached needs to be flame treated to reach a molten state, and the clamps of the clamp (512) are tightened to make the casting contact with the outer shells on both sides, and the inner surface of the outer shell gradually melts and wraps the inner cavity casting, and the edges of the two outer shells are also tightly attached. After positioning, the assembly is placed in the cooling box (1), connected to the disc gear (511) through the support plate (514), and the disc gear (511) is rotated and reciprocated to allow the molten plastic or composite material to fully penetrate into the pores of the casting under the influence of gravity, and finally accelerated cooling and fixing; Step 3: Sealing and final inspection: Use an industrial camera (66) to ensure that the connection between the inner cavity and the outer shell is well sealed to prevent the external environment from interfering with the internal structure during use. After assembly, the outer shell surface is made smooth by flame treatment, and then painted to beautify the appearance and increase protection and sealing. After painting, a final inspection is carried out to ensure that all parts are correctly connected without looseness, and that the overall structure is stable and the protection performance meets the design requirements.

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