High-speed automatic cold header for steel balls
Through the design of the four-zone mold structure and combination mechanism, the problems of crooked edges and mold jamming in steel ball production are solved, and the efficient forming of the steel ball and the durability of the mold are achieved.
Patent Information
- Application Number
- CN202510758933.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2045-06-09
AI Technical Summary
During the steel ball production process, steel is prone to skew or inclination when instantaneously pressed in the mold, resulting in crooked edges, and the rough surface of the inner wall of the mold increases, causing the steel ball surface to get stuck.
The four-zone mold structure is adopted, and the steel is calibrated and pressed by a combination of a pressure loading mechanism, a clamping edge stabilization mechanism, a crimping edge stamping mechanism and an auxiliary pressure propulsion mechanism, and a forging material calibration component and cold heading ends to calibrate and press the steel to avoid skew and jamming.
It effectively avoids the crooked edges of the steel ball rough blank, improves the service life of the mold and the forming quality of the steel ball.
Smart Images

Figure CN120286620A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cold heading of steel balls, and particularly to a high-speed automatic cold heading machine for steel balls. Background Art
[0002] In the production process of steel balls, first, a metal blank (steel) is placed in a mold, and then by applying appropriate pressure, the blank undergoes plastic deformation within the mold, and finally, steel balls meeting the requirements are obtained.
[0003] Cold heading is mainly mechanical forced pressing. Due to the high strength of the steel blank, when the steel is processed and transferred to the inside of a double mold by a robotic arm or a fixture, at the moment when the mold closes, the local instantaneous pressure on the steel will cause the bearing end to skew or incline. When pressed into a ball, the rough ball blank will have a phenomenon of a skewed edge. At the same time, the continuous reaction extrusion of the hard steel on the mold will also cause the rough surface of the mold inner wall to increase, which will then cause scratches on the subsequent ball surface.
[0004] In view of this, a high-speed automatic cold heading machine for steel balls is designed in the present invention to solve at least one of the above problems. Summary of the Invention
[0005] A high-speed automatic cold heading machine for steel balls is designed in the present invention to solve at least one of the above problems.
[0006] Therefore, the technical solution adopted by the present invention is as follows: A high-speed automatic cold heading machine for steel balls includes a pressure-bearing mechanism, a card-edge stability-increasing mechanism arranged inside the pressure-bearing mechanism, an anti-skewed-edge stamping mechanism arranged inside the pressure-bearing mechanism, and an auxiliary pressure propulsion mechanism arranged on the anti-skewed-edge stamping mechanism. The card-edge stability-increasing mechanism is used to fix the rough steel ball blank. The pressure-bearing mechanism is used to provide compressive support and stretching kinetic energy for the extension of the anti-skewed-edge stamping mechanism and the auxiliary pressure propulsion mechanism. The card-edge stability-increasing mechanism includes two card seats and two sets of blank-heading calibration components. The blank-heading calibration component includes a strengthening outer plate. The card seat is arranged outside the strengthening outer plate. A slot hole is opened in the middle of the strengthening outer plate, and a transverse hole is opened on the side of the strengthening outer plate. A traction rod is arranged inside the transverse hole. A die pressing pad is arranged inside the slot hole, and the threaded section at the inner end of the traction rod is installed in the die pressing pad. A gasket is arranged in the middle of the traction rod, and a tension spring is connected to the inner end of the gasket. The anti-skewed-edge stamping mechanism is used to adapt to the two sets of blank-heading calibration components to perform cold heading processing on the rough steel ball blank. The auxiliary pressure propulsion mechanism is used to apply the driving force for loading and unloading materials to the two sets of blank-heading calibration components.
[0007] In a preferred embodiment, the present invention can be further configured as follows: The anti-warping edge stamping mechanism includes a compression-resistant straight cylinder. A cylindrical hole is formed inside the compression-resistant straight cylinder, and a cold heading end is arranged inside the cylindrical hole. A compression spring is arranged on the rod body of the cold heading end penetrating into the cylindrical hole; A head is installed at the outer end of the rod body inside the cold heading end. A first clamp seat is arranged at the top of the head, and a second clamp seat is arranged at the bottom of the head; A plug is arranged inside the head, and the plug is adaptively clamped in a sliding groove inside the compression-resistant straight cylinder; The second clamp seat is movably connected with a cantilever, and a bracket is movably installed at the bottom end of the cantilever.
[0008] In a preferred embodiment, the present invention can be further configured as follows: The auxiliary pressing and pushing mechanism includes a top support frame, a suspension installed outside the first clamp seat, and a top pressing sliding column movably installed at the top of the suspension; The top pressing sliding column is integrally in a U-shaped structure, and a slideway is formed inside the top pressing sliding column; Four evenly distributed end rods are arranged in the middle of the top support frame. A limiting vertical rod is installed on the top support frame. A second spring is arranged outside the limiting vertical rod, and the top end of the second spring is adaptively pressed against the top pressing sliding column; The bottom ends of the side end plates of the top pressing sliding column are respectively pressed against the tops of two reinforcing outer plates.
[0009] In a preferred embodiment, the present invention can be further configured as follows: The load-bearing mechanism includes two bearing plates, a truss arranged inside the two bearing plates, and a hydraulic component installed in the middle of the truss; Two symmetrically distributed limiting clamping plates are arranged inside the bearing plate.
[0010] In a preferred embodiment, the present invention can be further configured as follows: The edge-clamping and stability-enhancing mechanism further includes a bottom plate arranged on the truss and a partition cushion block installed in the middle of the bottom plate; Two symmetrically distributed vertical frames are installed at both ends of the bottom plate; A vertical groove is formed inside the vertical frame, and a limiting sliding plate is arranged inside the vertical groove; A notch adapted to restrain a traction rod is formed inside the limiting sliding plate.
[0011] In a preferred embodiment, the present invention can be further configured as follows: The edge-clamping and stability-enhancing mechanism further includes a reset assembly, and the reset assembly is used to provide a reset thrust to the reinforcing outer plate; The reset assembly includes an end plate arranged at the bottom of the reinforcing outer plate, a reset inclined rod movably installed on the end plate, and a first spring arranged outside the reset inclined rod; A cross frame is installed outside the bottom plate, and a chuck is movably installed at the outer end of the cross frame; The bottom end of the reset diagonal rod is adapted to penetrate into the interior of the chuck.
[0012] In a preferred example of the present invention, it can be further configured that: a trapezoidal slope surface is provided at the top of the separation spacer block, and an inclined groove is provided in the middle of the bottom surface of the reinforced outer plate, and the trapezoidal slope surface is adapted to the inclined groove for providing a guiding platform for the expansion of the two reinforced outer plates.
[0013] In a preferred example of the present invention, it can be further configured that: rectangular transverse grooves are provided on both sides of the inner side of the reinforced outer plate, and the plate surface inside the vertical frame is adapted to fit into the rectangular transverse grooves for providing calibration constraints for the two reinforced outer plates after closing.
[0014] In a preferred example of the present invention, it can be further configured that: the compression straight cylinder, the cold heading end and the head are located inside the two limit clamping plates, and the first clamping seat and the second clamping seat respectively penetrate outside the two gaps of the two limit clamping plates.
[0015] In a preferred example of the present invention, it can be further configured that: the top support frame is integrally in a T-shaped structure, and two insertion holes are provided in the middle of the top support frame; the four end rods are respectively arranged in the two insertion holes; The top pressure sliding column is adapted to penetrate into the two insertion holes.
[0016] By adopting the above technical solutions, the beneficial effects obtained by the present invention are as follows: 1. By setting the existing double die into a four-zone die in the present invention, and arranging two sets of blank upsetting and calibration components symmetrically distributed between the two cold heading ends. After the two sets of blank upsetting and calibration components descend and open a certain gap, the cylindrical steel bars transported by the robotic arm or fixture can be subjected to the calibration constraints of the two sets of blank upsetting and calibration components. Finally, the reset steel bars pressed by the two cold heading ends will not be skewed or inclined due to the instantaneous pressure, thereby avoiding the problem of the steel ball rough blank having a skew edge.
[0017] 2. The cold heading end is movably installed in the compression straight cylinder in the present invention. When the cold heading end approaches the end of the cylindrical steel bar, the cold heading end that is elastically supported and extends outward first contacts the end of the steel bar and presses it tightly. As the compression straight cylinder continues to increase the pressure, finally, the deformed part of the steel ball under pressure cooperates with the inner wall of the four-zone die to perform step-by-step deformation compression, thereby avoiding the steel ball rough blank from being wrinkled.
[0018] 3. With two sets of die pressing pads as the center of the deformation of the steel ball rough blank, when the inner walls of the two cold heading ends become rough due to the long-term pressure of the steel bar reaction force, the two cold heading ends can be directly replaced, thereby effectively improving the efficiency of die maintenance and reducing the difficulty of die replacement to avoid the problem of the surface of the steel ball rough blank being scratched more seriously. Description of the Drawings
[0019] Figure 1 Schematic diagram when the present invention is in use; Figure 2 Three-dimensional schematic diagram of the present invention; Figure 3 Schematic diagram of the pressure-carrying mechanism and the auxiliary pressure propulsion mechanism of the present invention; Figure 4 Explosion schematic diagram of the auxiliary pressure propulsion mechanism of the present invention; Figure 5 Schematic diagram of the anti-warping-edge stamping mechanism of the present invention; Figure 6 For the present invention Figure 5 Internal schematic diagram; Figure 7 Partial schematic diagram of the present invention; Figure 8 Explosion schematic diagram of the edge-clamping and stability-increasing mechanism of the present invention; Figure 9 For the present invention Figure 8 Enlarged schematic diagram at position A in; Figure 10 For the present invention Figure 8 Enlarged schematic diagram at position B in; Figure 11 Explosion schematic diagram of the upsetting and calibration assembly of the present invention.
[0020] Reference numerals: 100, pressure-carrying mechanism; 110, bearing plate; 120, truss; 130, hydraulic component; 140, limiting clamping plate; 200, edge-clamping and stability-increasing mechanism; 210, bottom plate; 220, separating cushion block; 230, vertical frame; 240, limiting sliding plate; 250, upsetting and calibration assembly; 251, reinforcing outer plate; 252, transverse hole; 253, slot hole; 254, traction rod; 255, gasket; 256, die pressing pad part; 257, tension spring; 260, clamping seat; 270, reset assembly; 271, transverse frame; 272, chuck; 273, reset inclined rod; 274, first spring; 275, end plate; 300, anti-warping-edge stamping mechanism; 310, compression-resistant straight cylinder; 320, cold heading end; 330, head; 340, first clamping seat; 350, second clamping seat; 360, plug; 370, compression spring; 380, cantilever; 390, bracket; 400, auxiliary pressure propulsion mechanism; 410, top support frame; 420, end rod; 430, limiting vertical rod; 440, second spring; 450, top pressing sliding column; 460, suspension; 500, steel ball rough blank. Detailed implementation manners
[0021] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.
[0022] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention.
[0023] The following describes a high-speed automatic cold heading machine for steel balls provided by some embodiments of the present invention with reference to the accompanying drawings.
[0024] Embodiment 1: Combined Figures 1 to 11 As shown, a high-speed automatic cold heading machine for steel balls provided by the present invention includes a load-bearing mechanism 100, a card-edge stability-enhancing mechanism 200 disposed within the load-bearing mechanism 100, an anti-warping-edge stamping mechanism 300 disposed within the load-bearing mechanism 100, and an auxiliary pressure propulsion mechanism 400 disposed on the anti-warping-edge stamping mechanism 300. The card-edge stability-enhancing mechanism 200 is used to fix the steel ball rough blank 500. The load-bearing mechanism 100 is used to provide compressive support and stretching kinetic energy for the extension of the anti-warping-edge stamping mechanism 300 and the auxiliary pressure propulsion mechanism 400. The card-edge stability-enhancing mechanism 200 is used to provide calibration constraints for the cylindrical steel. The anti-warping-edge stamping mechanism 300 is used to cooperate with the card-edge stability-enhancing mechanism 200 to perform die pressing on the cylindrical steel according to the change of deformation tension. The auxiliary pressure propulsion mechanism 400 is used to provide loading and unloading driving force for the card-edge stability-enhancing mechanism 200.
[0025] The load-bearing mechanism 100 includes two bearing plates 110, a truss 120 disposed within the two bearing plates 110, and a hydraulic component 130 installed in the middle of the truss 120; Two symmetrically distributed limiting clamping plates 140 are disposed inside the bearing plate 110; The card-edge stability-enhancing mechanism 200 includes two card seats 260 and two groups of upsetting calibration components 250, a bottom plate 210 disposed on the truss 120, and a partition cushion block 220 installed in the middle of the bottom plate 210; The upsetting calibration component 250 includes a reinforcing outer plate 251. The card seat 260 is disposed outside the reinforcing outer plate 251. A slot hole 253 is opened in the middle of the reinforcing outer plate 251, and a transverse hole 252 is opened on the side of the reinforcing outer plate 251. A traction rod 254 is disposed inside the transverse hole 252. A die pressing gasket 256 is disposed inside the slot hole 253. The threaded section at the inner end of the traction rod 254 is installed inside the die pressing gasket 256. A gasket 255 is disposed in the middle of the traction rod 254, and a tension spring 257 is connected to the inner end of the gasket 255; A trapezoidal slope is opened at the top of the partition cushion block 220. An inclined slot is opened in the middle of the bottom surface of the reinforcing outer plate 251, and the trapezoidal slope is adapted to the inclined slot to provide a guiding platform for the expansion of the two reinforcing outer plates 251.
[0026] Rectangular transverse grooves are provided on both sides of the inner side of the reinforced outer plate 251, and the plate surface on the inner side of the vertical frame 230 is adapted to fit into the rectangular transverse grooves, so as to provide calibration constraints for the two reinforced outer plates 251 after closing.
[0027] When the hydraulic component 130 operates, as the internal hydraulic sub-rod contracts, the pushed bracket 390 will exert an outward thrust on the two cantilevers 380. At this time, the two groups of end heads 330, compression straight cylinders 310, and cold heading ends 320 will withdraw from the two chucks 260. Until the cold heading ends 320 are completely withdrawn from the chucks 260, the first clamp seat 340 installed on the top of the end head 330 will pull the suspension 460 down. At this time, the top pressure sliding column 450 movably installed at the top of the suspension 460 will exert a downward thrust on the two groups of upsetting and calibrating assemblies 250; Until the two groups of upsetting and calibrating assemblies 250 descend and expand outward along the separating cushion blocks 220, at this time, the two groups of upsetting and calibrating assemblies 250 can provide a calibration cavity for the cylindrical steel. After the two groups of upsetting and calibrating assemblies 250 clamp and restrain the cylindrical steel and reset it to the initial state, the extension of the hydraulic sub-rod in the hydraulic component 130 can, under the linkage action of the above components, push the two cold heading ends 320 to reset until the two cold heading ends 320 perform cold heading processing on both ends of the cylindrical steel.
[0028] Embodiment 2: Combined with Figure 3 、 Figure 9 And Figure 11 As shown, on the basis of Embodiment 1, the card edge stability increasing mechanism 200 further includes a reset assembly 270, and the reset assembly 270 is used to provide a reset thrust for the reinforced outer plate 251.
[0029] Preferably, the four groups of reset assemblies 270 are arranged between two adjacent reinforced outer plates 251 and the bottom plate 210. As the two reinforced outer plates 251 move up and down along the two sides of the two vertical frames 230, the cylindrical steel can be effectively clamped by the two groups of die pressing cushion parts 256, that is, the cylindrical steel can be centered and calibrated and clamped.
[0030] Two symmetrically distributed vertical frames 230 are installed at both ends of the bottom plate 210; Vertical grooves are provided in the vertical frames 230, and limiting sliding plates 240 are arranged in the vertical grooves.
[0031] Preferably, the two limiting sliding plates 240 are used to provide an orderly track for the lateral extension of the two groups of upsetting and calibrating assemblies 250. When the two groups of upsetting and calibrating assemblies 250 are freely extended under the extrusion of the separating cushion blocks 220, the two limiting sliding plates 240 can provide effective bearing for the upsetting and calibrating assemblies 250.
[0032] The inside of the limit slide plate 240 is provided with a notch adapted to be constrained to the towing bar 254; The reset assembly 270 includes an end plate 275 arranged at the bottom of the reinforcing outer plate 251, a reset inclined rod 273 movably installed on the end plate 275, and a first spring 274 arranged outside the reset inclined rod 273; A cross frame 271 is installed outside the bottom plate 210, and a chuck 272 is movably installed at the outer end of the cross frame 271; The bottom end of the reset inclined rod 273 is adapted to penetrate into the inside of the chuck 272.
[0033] Preferably, the cross frame 271 is fixed outside the bottom plate 210 by welding, wherein the bottom plate 210 is welded and fixed in the middle of the truss 120. When the two upsetting and calibrating assemblies 250 reciprocate up and down, the four reset assemblies 270 can provide effective reset thrust for the two upsetting and calibrating assemblies 250, thereby improving the loading and unloading efficiency of the steel and the steel ball billet 500.
[0034] Embodiment 3: Combined with Figures 3 to 11 As shown, on the basis of Embodiment 1, the anti-warping edge stamping mechanism 300 includes a compression-resistant straight cylinder 310. A cylindrical hole is provided inside the compression-resistant straight cylinder 310, and a cold heading end 320 is arranged in the cylindrical hole. A compression spring 370 is arranged on the rod body of the cold heading end 320 penetrating into the cylindrical hole; A sealing head 330 is installed at the outer end of the rod body inside the cold heading end 320. A first clamp seat 340 is arranged at the top of the sealing head 330, and a second clamp seat 350 is arranged at the bottom of the sealing head 330.
[0035] Preferably, the outer end of the rod body inside the cold heading end 320 is installed inside the sealing head 330. The sealing head 330 pulled by the compression spring 370 will push the cold heading end 320 to initially press against the steel end at the inner side of the clamping seat 260. As the cantilever 380 continuously presses against the second clamp seat 350, finally the sealing head 330 will apply an extrusion force to the compression-resistant straight cylinder 310. At this time, the cold heading end 320 can perform a die pressing treatment on the end of the cylindrical steel.
[0036] A plug 360 is arranged inside the sealing head 330, and the plug 360 is adaptively clamped in the chute inside the compression-resistant straight cylinder 310; A cantilever 380 is movably connected to the second clamp seat 350, and a bracket 390 is movably installed at the bottom end of the cantilever 380; The compression-resistant straight cylinder 310, the cold heading end 320 and the sealing head 330 are located inside the two limit clamping plates 140, and the first clamp seat 340 arranged at the top of the sealing head 330 and the second clamp seat 350 arranged at the bottom of the sealing head 330 respectively penetrate through the two gaps of the two limit clamping plates 140.
[0037] Preferably, two symmetrically distributed arc-shaped insert plates are provided on the end of the cold heading end 320 close to the pressure-resistant straight cylinder 310, and the arc-shaped insert plates are adapted to pass through the interior of the pressure-resistant straight cylinder 310. With this structural arrangement, when the cold heading end 320 is subjected to pressure, shaking during the molding process of the steel end can be avoided, and the columnar steel can remain stable during the process of being pressed into a ball.
[0038] Embodiment 4: Combination Figures 3 to 11 As shown, on the basis of Example 1, the auxiliary pressure propulsion mechanism 400 includes a top support frame 410, a suspension 460 movably mounted outside the first clamping seat 340, and a top pressure sliding column 450 movably mounted on the top of the suspension 460.
[0039] Preferably, the bottom ends of the two suspensions 460 are movably mounted on the two first clamping seats 340, and the cold heading end 320 in the initial state is located in the clamping seat 260. At this time, the two suspensions 460 will form a triangular structure and push the top pressure slide column 450 to rise, so that the two sets of upsetting material calibration assemblies 250 can clamp the columnar steel and maintain the stability of the molding.
[0040] The top pressure slide column 450 is in a U-shaped structure as a whole, and a slideway is provided inside the top pressure slide column 450; The middle part of the top support frame 410 is provided with four evenly distributed end rods 420, and a limit vertical rod 430 is installed on the top support frame 410. A second spring 440 is arranged outside the limit vertical rod 430, and the top end of the second spring 440 is adapted to bear pressure on the top pressure sliding column 450; The bottom ends of the end plates on both sides of the top pressure sliding column 450 are respectively pressed against the tops of the two reinforced outer plates 251 .
[0041] Preferably, the width of the end plates on both sides of the top pressure slide column 450 is the same as the width of the top of the reinforced outer plate 251. When the reinforced outer plate 251 is guided by the inclined surface of the separation pad 220 and extends outward, the bottom ends of the end plates on both sides of the top pressure slide column 450 can maintain the two sets of expanded upsetting material calibration assemblies 250 to effectively clamp and restrain the columnar steel without separating from the top of the reinforced outer plate 251.
[0042] The top support frame 410 is in a T-shaped structure as a whole, and two insertion holes are opened in the middle of the top support frame 410, and the four end rods 420 are respectively arranged in the two insertion holes; The top pressure slide post 450 is adapted to penetrate into the two insertion holes.
[0043] When the top support frame 410 is fixedly installed between the two pressure plates 110, the top support frame 410 can cooperate with the limiting vertical rod 430 to provide sufficiently stable support for the lifting and lowering of the top pressure slide column 450, thereby ultimately ensuring that the two cold heading ends 320 are under constant pressure, while preventing the columnar steel from being skewed on the inner side of the two sets of heading calibration assemblies 250.
[0044] Working principle and use process of the present invention: Steel ball cold heading process is a process in which steel is cut by special processing and pressed into balls by a mechanical arm or a clamp, and the metal blank material is pressed into a spherical rough blank by cold pressing; However, the existing cold heading process for steel balls has certain defects. During the process of transferring the cut material to the mold through a mechanical arm or a fixture and pressing it, the steel material will be tilted and skewed at the moment it contacts the pressure surface, which will cause the steel ball blank 500 to have a skewed edge. This skewed edge will cause the steel ball blank 500 to be larger on one side and smaller on the other. In addition, due to the influence of the traditional upper and lower mold double pressure, the double mold is subjected to the reaction force of the steel for a long time, and the roughness of the inner wall of the mold will be aggravated, which will cause the subsequent steel ball rough blank 500 to be stuck; The device of the present invention is provided with a four-zone mold structure. When the hydraulic component 130 is in operation, as the hydraulic sub-rod inside it contracts, the bracket 390 installed on the hydraulic sub-rod will push the two cantilevers 380 to extend outward, and the two heads 330 movably installed on the top of the two cantilevers 380 will move outward along the inside of the two sets of limit clamps 140, and at this time, the two cold heading ends 320 will be withdrawn outward from the inside of the two holders 260; After the two cold heading ends 320 are completely withdrawn from the two clamping seats 260, the suspension 460 pulled by the first clamping seat 340 will pull the top pressure slide column 450 to drop downward, and the top pressure slide column 450 constrained by the top support frame 410 and the four end rods 420 will push the two sets of upsetting material calibration components 250 downward, and finally the two reinforced outer plates 251 will be pressed down, and the separation pad 220 can press the two reinforced outer plates 251 until they are separated, and at this time the two sets of upsetting material calibration components 250 can expand with the separation pad 220 as the center; Then, a mechanical arm or a clamp can be used to deliver the processed cylindrical steel material to the gap between two adjacent sets of molded cushions 256, and at this time, the two sides of the center position of the cylindrical steel material outside can be calibrated and clamped; As the hydraulic sub-rod in the hydraulic component 130 extends, the two sets of upsetting material calibration assemblies 250 can transfer the clamped steel upward until the two sets of upsetting material calibration assemblies 250 are close to the middle of the steel. When the two cold heading ends 320 are quickly reset toward the two holders 260, the two ends of the columnar steel can finally be pressed by the spherical mold cavity formed by the inner ends of the two cold heading ends 320 and the four molded pads 256, thereby avoiding the phenomenon of skewness or inclination during the cold heading of the columnar steel. At the same time, the four-zone mold can adapt the pressure-bearing constraints to the parts of the steel that are compressed and deformed, thereby avoiding the problem of jamming of the steel ball blank 500.
[0045] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.
Claims
1. A high-speed automatic cold heading machine for steel balls, comprising a pressure-carrying mechanism (100), characterized in that, It further includes a card edge stability enhancing mechanism (200) arranged within the pressure-bearing mechanism (100), an anti-warping edge stamping mechanism (300) arranged within the pressure-bearing mechanism (100), and an auxiliary pressure propulsion mechanism (400) arranged on the anti-warping edge stamping mechanism (300). The card edge stability enhancing mechanism (200) is used to fix the rough blank of the steel ball (500). The pressure-bearing mechanism (100) is used to provide compressive support for the anti-warping edge stamping mechanism (300) and the auxiliary pressure propulsion mechanism (400). The card edge stability enhancing mechanism (200) includes two card seats (260) and two sets of upsetting and calibration components (250). The upsetting and calibration component (250) includes a reinforcing outer plate (251). The card seat (260) is arranged outside the reinforcing outer plate (251). A slot hole (253) is formed in the middle of the reinforcing outer plate (251), and a transverse hole (252) is formed on the side of the reinforcing outer plate (251). A traction rod (254) is arranged inside the transverse hole (252). A die pressing gasket (256) is arranged inside the slot hole (253). The threaded section at the inner end of the traction rod (254) is installed inside the die pressing gasket (256). A gasket (255) is arranged in the middle of the traction rod (254), and a tension spring (257) is connected to the inner end of the gasket (255).
2. The high-speed automatic cold heading machine for steel balls according to claim 1, characterized in that The anti-warping edge stamping mechanism (300) includes a compressive straight cylinder (310). A cylindrical hole is formed inside the compressive straight cylinder (310), and a cold heading end (320) is arranged inside the cylindrical hole. A compression spring (370) is arranged on the rod body of the cold heading end (320) penetrating into the cylindrical hole. A sealing head (330) is installed at the outer end of the rod body inside the cold heading end (320). A first clamping seat (340) is arranged at the top of the sealing head (330), and a second clamping seat (350) is arranged at the bottom of the sealing head (330). A plug (360) is arranged inside the sealing head (330), and the plug (360) is adaptively clamped in the sliding groove inside the compressive straight cylinder (310). A cantilever (380) is movably connected to the second clamping seat (350), and a bracket (390) is movably installed at the bottom end of the cantilever (380).
3. A high-speed automatic cold heading machine for steel balls according to claim 1, characterized in that, The auxiliary pressure propulsion mechanism (400) includes a top support frame (410), a suspension (460) movably installed outside the first clamping seat (340), and a top pressure sliding column (450) movably installed at the top of the suspension (460). The top pressure sliding column (450) is integrally in a U-shaped structure, and a sliding track is formed inside the top pressure sliding column (450). Four evenly distributed end rods (420) are arranged in the middle of the top support frame (410). A limiting vertical rod (430) is installed on the top support frame (410). A second spring (440) is arranged outside the limiting vertical rod (430), and the top end of the second spring (440) is adaptively pressed against the top pressure sliding column (450). The bottom ends of the side end plates of the top pressure sliding column (450) are respectively pressed against the tops of the two reinforcing outer plates (251).
4. A high-speed automatic cold heading machine for steel balls according to claim 1, characterized in that, The pressure-bearing mechanism (100) includes two bearing plates (110) and a truss (120) arranged inside the two bearing plates (110). A hydraulic component (130) is installed in the middle of the truss (120). Two symmetrically distributed limiting clamping plates (140) are arranged inside the bearing plate (110).
5. A high-speed automatic cold heading machine for steel balls according to claim 1, characterized in that, The edge-clamping and stability-enhancing mechanism (200) further includes a bottom plate (210) arranged on the truss (120) and a separating cushion block (220) installed in the middle of the bottom plate (210). Two symmetrically distributed vertical frames (230) are installed at both ends of the bottom plate (210). A vertical groove is formed inside the vertical frame (230), and a limiting sliding plate (240) is arranged in the vertical groove. A notch adapted to the traction rod (254) is formed inside the limiting sliding plate (240).
6. The high-speed automatic cold heading machine for steel balls according to claim 5, characterized in that, The edge-clamping and stability-enhancing mechanism (200) further includes a reset assembly (270), and the reset assembly (270) is used to provide a reset thrust to the reinforcing outer plate (251). The reset assembly (270) includes an end plate (275) arranged at the bottom of the reinforcing outer plate (251), and a reset inclined rod (273) movably installed on the end plate (275). A first spring (274) is arranged outside the reset inclined rod (273). A cross frame (271) is installed outside the bottom plate (210), and a chuck (272) is movably installed at the outer end of the cross frame (271). The bottom end of the reset inclined rod (273) is adapted to penetrate into the inside of the chuck (272).
7. A high-speed automatic cold heading machine for steel balls according to claim 5, characterized in that, A trapezoidal slope is formed at the top of the separating cushion block (220), and an inclined groove is formed in the middle of the bottom surface of the reinforcing outer plate (251). The trapezoidal slope is adapted to the inclined groove to provide a guiding platform for the expansion of the two reinforcing outer plates (251).
8. A high-speed automatic cold heading machine for steel balls according to claim 5, characterized in that, Rectangular cross grooves are formed on both sides of the inner side of the reinforcing outer plate (251), and the inner side plate surface of the vertical frame (230) is adapted to fit into the rectangular cross grooves to provide calibration constraints for the two closed reinforcing outer plates (251).
9. The high-speed automatic cold heading machine for steel balls according to claim 2, wherein The compression-resistant straight cylinder (310), the cold heading end (320), and the head (330) are located inside the two limiting clamping plates (140), and the first clamping seat (340) and the second clamping seat (350) respectively penetrate through the two gaps of the two limiting clamping plates (140).
10. A high-speed automatic cold heading machine for steel balls according to claim 3, characterized in that, The top support frame (410) is integrally in a T-shaped structure, and two jacks are formed in the middle of the top support frame (410). The four end rods (420) are respectively arranged in the two jacks. The top pressure sliding column (450) is adapted to penetrate into the two jacks.
Citation Information
Patent Citations
Cold heading process and device for steel ball production
CN114800117A
Phosphor copper ball cold heading forming device
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