A special intelligent fixture for machining hardware mold blanks

Abstract

This invention relates to the field of metal stamping, and more particularly to a special intelligent fixture for processing metal part blanks, comprising a mold and an electric intelligent conveyor roller assembly. This invention provides a special intelligent fixture for processing metal part blanks, featuring a vertically reciprocating moving frame on a stamping machine. The mold and the electric intelligent conveyor roller assembly on the vertically moving frame together form a conveyor fixture, which drives two steel strips to reciprocate up and down for stamping operations. This allows for the completion of one metal stamping process for two steel strips in one reciprocating cycle, while also making the overall equipment more compact. During the reciprocating movement of the steel strips, the conveyor fixture ensures that the steel strips are taut during the metal stamping process, improving the stamping effect. This overcomes the technical disadvantages of low energy efficiency and the large space required for reciprocating stamping mechanisms in stamping machines.

Description

Technical Field

[0001] This invention relates to the field of metal stamping, and in particular to a special intelligent fixture for processing metal part blanks. Background Technology

[0002] In the metal stamping process of steel strip, after being processed by an uncoiler and a straightening and leveling machine, the steel strip is conveyed to the stamping machine via a conveyor roller mechanism. The reciprocating stamping mechanism, through the cooperation of the punch and the die, stamps the steel strip into shape. After the metal stamping process, the part of the steel strip that has been processed is conveyed to the next metal processing equipment via the conveyor roller mechanism. Because the steel strip is relatively thin, the stamping force required to stamp the steel strip is relatively small. However, the reciprocating stamping mechanism is a motion structure based on rotation to linear motion, which drives the punch to move up and down back and forth. Therefore, after each punching of the steel strip, a lot of energy is required to drive the punch to complete the extra upward movement step. This process will generate energy loss, resulting in reduced efficiency. In addition, the reciprocating stamping mechanism of each stamping machine occupies a large volume. Therefore, when there are multiple stamping machine production lines for metal stamping of steel strip, a large space is required to house multiple stamping machines, resulting in low space utilization of the factory. Summary of the Invention

[0003] In order to overcome the disadvantages of low energy efficiency and large space requirements of reciprocating stamping mechanisms in stamping machines, this invention provides a special intelligent fixture for processing hardware die blanks.

[0004] The technical solution of this invention is: a special intelligent fixture for processing hardware mold blanks, comprising a stamping machine, a vertical moving frame, a drive motor, a power shaft, a rotary arm, a transmission arm, a synchronous shaft, a mold, an electric intelligent conveyor roller group, a fixed block, a pressure plate, a punch rod, and a compression spring; the vertical moving frame is slidably connected to the stamping machine; two drive motors are mounted on the stamping machine; a power shaft is fixedly connected to the output end of the drive motor; a rotary arm is fixedly connected to the power shaft; a synchronous shaft is rotatably connected between the two rotary arms; a transmission arm is rotatably connected between the synchronous shaft and the upper side of the vertical moving frame; the synchronous shaft and the vertical moving frame are rotatably connected... A transmission arm is rotatably connected to the lower sides of the moving frame; a mold is fixedly connected to the upper and lower sides of the vertical moving frame; the mold has a moving groove structure to guide the movement of the steel belt; an electric intelligent conveyor roller group for conveying the movement of the steel belt is installed on the mold; a fixed block is fixedly connected to the upper and lower sides of the stamping machine, and the two molds are located between the two fixed blocks; a pressure plate is slidably connected to the fixed block; a punch is fixedly connected to the fixed block; the punch is slidably connected to the pressure plate on the same side; a compression spring is fixedly connected between the pressure plate and the corresponding fixed block; each mold has a punching structure corresponding to the punch on the same side.

[0005] More preferably, the front and rear sides of the mold's moving groove structure are each slidably connected to a wedge-shaped clamping plate that aligns with the corresponding pressure plate; a sliding rod is fixedly connected to the wedge-shaped clamping plate; and a tension spring is fixedly connected between the sliding rod and the corresponding mold.

[0006] More preferably, the mold's moving groove structure has several limiting strips fixedly connected inside.

[0007] More preferably, the punch has an air outlet structure inside; and the fixing block is fixed with an air inlet pipe that connects to the corresponding air outlet structure inside the punch.

[0008] More preferably, the vent structure is designed to be inclined forward toward the corresponding mold.

[0009] More preferably, the mold is equipped with a heater.

[0010] More preferably, the heater is a heat medium heater, and the heater has a cavity structure for containing heat medium. The heater has a liquid inlet port structure and a liquid outlet port structure connected to the cavity structure in sequence. The liquid inlet port structures of the two heaters are connected to a common liquid delivery pipe. The liquid outlet port structures of the two heaters are connected to a common return pipe.

[0011] More preferably, the limiting strip is made of elastic rubber material.

[0012] More preferably, two fixed rods are fixedly connected to the stamping machine; image recognition sensors for observing the stamping effect of steel strip hardware are installed on the fixed rods.

[0013] More preferably, a shock absorber is provided between the fixed rod and the corresponding image recognition sensor.

[0014] The beneficial effects are as follows: This invention provides a special intelligent fixture for processing metal part mold blanks. A vertically moving frame that reciprocates up and down is provided on the stamping machine. The mold on the vertically moving frame and the electric intelligent conveying roller group together form a conveying fixture, which drives two steel strips to reciprocate up and down for stamping work. This allows for the completion of one metal stamping process for two steel strips in one reciprocating cycle. Simultaneously, it makes the overall equipment more compact. During the reciprocating movement of the steel strips, the conveying fixture not only ensures the steel strips are taut during the metal stamping process, improving the stamping effect, but also uses the vibration generated on the surface of the steel strips to shake off and clean any residual stamping debris. This invention overcomes the technical shortcomings of low energy efficiency and the large space required for reciprocating stamping mechanisms in stamping machines. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the vertical moving frame of the present invention;

[0017] Figure 3 This is a three-dimensional schematic diagram of the transmission arm of the present invention;

[0018] Figure 4 This is a three-dimensional schematic diagram of the vertical moving frame and mold of the present invention;

[0019] Figure 5 This is a three-dimensional schematic diagram of the mold of the present invention;

[0020] Figure 6 This is a three-dimensional schematic diagram of the electric intelligent conveyor roller assembly of the present invention;

[0021] Figure 7 This is a three-dimensional exploded view of the mold and wedge-shaped card plate of the present invention;

[0022] Figure 8 This is a three-dimensional schematic diagram of the punch rod of the present invention.

[0023] Reference numerals: 1-Punching machine tool, 2-Vertical moving frame, 21-Drive motor, 22-Power shaft, 23-Rotating arm, 24-Transmission arm, 25-Synchronous shaft, 3-Mold, 301-Moving groove structure, 302-Punching structure, 31-Wedge-shaped clamping plate, 32-Slide rod, 33-Tension spring, 34-Limiting clip, 35-Electric intelligent conveyor roller group, 41-Fixing block, 42-Pressure plate, 43-Punching rod, 4301-Air outlet structure, 44-Compression spring, 45-Air inlet pipe, 5-Heater, 51-Infusion pipe, 52-Return pipe, 61-Fixing rod, 62-Image recognition sensor, 63-Shock absorber. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0025] Example 1: A special intelligent fixture for machining hardware mold blanks according to the present invention, such as... Figures 1-8As shown, the assembly includes a stamping machine 1, a vertical moving frame 2, a drive motor 21, a power shaft 22, a rotating arm 23, a transmission arm 24, a synchronous shaft 25, a mold 3, an electric intelligent conveyor roller group 35, a fixed block 41, a pressure plate 42, a punch rod 43, and a compression spring 44. The vertical moving frame 2 is slidably connected to the stamping machine 1. Two drive motors 21 are mounted on the stamping machine 1. Each output end of the two drive motors 21 is fixedly connected to a power shaft 22. Each power shaft 22 is fixedly connected to a rotating arm 23. A synchronous shaft 25 is rotatably connected between the two rotating arms 23. A transmission arm 24 is rotatably connected between the synchronous shaft 25 and the upper side of the vertical moving frame 2. A transmission arm 24 is also rotatably connected between the synchronous shaft 25 and the lower side of the vertical moving frame 2. The upper side of the vertical moving frame 2 and... Each of the two molds 3 is fixedly connected to the lower side; each of the two molds 3 has a movable groove structure 301; each of the two molds 3 has an electric intelligent conveyor roller group 35 installed at the left and right ends; each of the two molds 3 has a fixed block 41 fixedly connected to the upper and lower sides of the stamping machine tool 1, and the two molds 3 are located between the two fixed blocks 41; each of the two fixed blocks 41 has a pressure plate 42 slidably connected to the side of the corresponding mold 3; each of the two fixed blocks 41 has two punch rods 43 fixedly connected to the two fixed blocks 41; each punch rod 43 on the fixed block 41 is slidably connected to the pressure plate 42 on the same side; each of the two pressure plates 42 and the corresponding fixed blocks 41 has two compression springs 44 fixedly connected to the two pressure plates 42, and the compression springs 44 are sleeved on the outer surface of the corresponding punch rods 43; each of the two molds 3 has two punching structures 302 that correspond to the two punch rods 43 on the same side.

[0026] like Figures 5-7 As shown, each of the two molds 3 has a wedge-shaped clamping plate 31 slidably connected to the front and rear sides of the moving groove structure 301, which is aligned with the corresponding pressure plate 42; each wedge-shaped clamping plate 31 has two slide rods 32 fixedly connected to it; each slide rod 32 has a tension spring 33 fixedly connected to the corresponding mold 3, and the tension spring 33 is sleeved on the outer surface of the corresponding slide rod 32; each of the two molds 3 has several limiting clips 34 fixedly connected inside the moving groove structure 301.

[0027] The working steps of the intelligent fixture for processing hardware mold blanks according to the present invention are as follows.

[0028] After the worker places the two steel strips into the moving groove structures 301 of the two molds 3 respectively, the moving groove structures 301 of the molds 3, together with the wedge-shaped clamping plates 31 and the limiting clamping strips 34, clamp the steel strips. The steel strips are then intelligently driven to the right by the electric intelligent conveying roller groups 35 at both ends of the molds 3. The two drive motors 21 drive the power shafts 22 and the rotating arms 23 connected to them to rotate. The two rotating arms 23 drive the two transmission arms 24 to synchronously push the vertical moving frame 2 to move back and forth along the vertical direction of the stamping machine tool 1. The synchronous shaft 25 can connect the two rotating arms 23 together to rotate synchronously. Whenever the vertical moving frame 2 moves the mold 3 on one side of the moving direction toward the fixed block 41 on the same side, the mold 3 pulls the steel strip toward the fixed block 41 synchronously. At this time, the pressure plate 42 first pushes the wedge-shaped clamping plates 31 to drive the sliding rods 32 away from the fixed block 41. As the steel strip moves in the direction of movement, the slide bar 32 drives the tension spring 33 to stretch, allowing the pressure plate 42 to replace the wedge-shaped clamping plate 31 and press the steel strip onto the moving groove structure 301 of the mold 3. Then, the punch 43 on the fixed block 41 punches the part to be stamped on the steel strip into the punching structure 302 of the mold 3 until the punch 43 pushes the punched piece from the steel strip out of the punching structure 302 of the mold 3. After that, the vertical moving frame 2 drives the mold 3 to move away from the fixed block 41 in the opposite direction, allowing the pressure plate 42 and the punch 43 on the fixed block 41 to leave the mold 3. At the same time, the stretched tension spring 33 drives the wedge-shaped clamping plate 31 to move and reset, completing one metal stamping process of the steel strip. After each metal stamping process, the steel strip is intelligently driven by the electric intelligent conveying roller group 35 at both ends of the mold 3 to move the steel strip a specified distance to the right, so that the new part to be stamped on the steel strip is aligned with the punch 43.

[0029] Since the vertical moving frame 2 has a mold 3 on its upper and lower sides, one up-and-down reciprocating movement cycle of the vertical moving frame 2 can complete one metal stamping process of two steel strips. This not only combines two stamping machines 1 into one machine and performs metal stamping processing on two steel strips at the same time, but also makes the overall equipment more compact and reduces the space occupied by the equipment. Since the synchronous shaft 25 can connect the two rotating arms 23 together for synchronous rotation, even if only one drive motor 21 is used in the equipment, it can meet the requirements of driving the vertical moving frame 2 to move up and down and complete the metal stamping processing of two steel strips, thus significantly improving the energy utilization rate of the equipment.

[0030] Since the steel strip is connected to a conveyor roller mechanism on each side of the mold 3, and the steel strip is in a loose state between the two conveyor roller mechanisms, when the mold 3 pulls the steel strip towards the fixed block 41, it can make the steel strip be stretched and taut to complete the metal stamping process, thereby improving the metal stamping process effect of the steel strip. When the mold 3 drives the steel strip up and down, it can also make the steel strip on both sides of the mold 3 vibrate up and down, thereby using the vibration generated on the surface of the steel strip to shake off and clean the stamping debris remaining on its surface.

[0031] like Figure 8 As shown, each punch 43 of the intelligent fixture for processing hardware mold blanks of the present invention has a vertically penetrating air outlet structure 4301; two fixed blocks 41 are each fixedly connected to two air inlet pipes 45; each air inlet pipe 45 is connected to the corresponding air outlet structure 4301 in the punch 43, and the air inlet pipe 45 is connected to an external airflow conveying device, which continuously conveys airflow to the air outlet structure 4301 through the air inlet pipe 45; each air outlet structure 4301 is designed to be inclined forward toward the corresponding mold 3; when the punch 43 pushes the punch piece punched off the steel strip out of the punching structure 302 of the mold 3, the airflow blown out along the forward-inclined air outlet structure 4301 will blow the punch piece forward, causing the pushed-out punch piece to fall forward away from the moving range of the vertical moving frame 2, so as to avoid the normal operation of the vertical moving frame 2 due to the accumulation of a large number of punch pieces within its moving range.

[0032] Example 2, as Figures 1-8As shown, based on Embodiment 1, each of the two molds 3 in this embodiment is equipped with a heater 5 at its feed end. Both heaters 5 use a heat transfer medium heater, and each heater 5 has a cavity structure for containing the heat transfer medium. The heater 5 has an inlet port structure and an outlet port structure connected to the cavity structure. Because the inlet port structures of the two heaters 5 are close together, they are connected by a common delivery pipe 51, which is externally connected to the delivery port of the heat transfer medium circulation equipment. Because the outlet port structures of the two heaters 5 are close together, they are connected by a common return pipe 52, which is externally connected to the return port of the heat transfer medium circulation equipment. The externally connected heat transfer medium circulation equipment circulates the heat transfer medium fluid to the cavity structures of the two heaters 5 through the delivery pipe 51. The heat transfer fluid inside the cavity structure flows back to the external heat transfer fluid circulation equipment through the return pipe 52, so that the steel strip passing through the moving groove structure 301 of the two molds 3 can be preheated by the heat transfer fluid in the shared heater 5. After the steel strip has been preheated, the chipping of the stamping gate structure can be reduced in the subsequent metal stamping process. Moreover, the two heaters 5 share a liquid inlet pipe 51, a return pipe 52 and an external heat transfer fluid circulation equipment, which can reduce the energy loss required for heating. Both limit strips 34 are made of elastic rubber material. When the steel strip passes between the moving groove structure 301 of the mold 3 and the limit strip 34, the steel strip applies outward compression to the limit strip 34. Under the action of the reverse deformation elastic force generated by its own elastic rubber material, the compressed limit strip 34 pushes the steel strip downward and tightly adheres to the surface of the heater 5, thereby improving the preheating effect of the heat transfer fluid in the heater 5 on the steel strip.

[0033] Example 3, as Figures 1-8 As shown, in this embodiment, based on embodiment 1, two fixed rods 61 are fixedly connected to the stamping machine tool 1. Each of the two fixed rods 61 is equipped with an image recognition sensor 62, and the two image recognition sensors 62 are respectively aligned with the discharge ends of the two dies 3. The image recognition sensors 62 continuously perform intelligent image recognition on the part of the steel strip that comes out of the discharge end of the die 3, automatically observe and identify the metal stamping processing effect of the steel strip, and automatically judge whether there are large defects in the structure of each stamping hole of the steel strip. A shock absorber 63 is provided between each of the two fixed rods 61 and the corresponding image recognition sensor 62. During the reciprocating impact of the die 3 on the pressure plate 42, the stamping machine tool 1 will generate a large vibration impact. The vibration impact transmitted along the fixed rods 61 of the stamping machine tool 1 to the image recognition sensor 62 will be absorbed by the shock absorber 63 in time, reducing the interference of vibration impact on the intelligent image recognition operation of the image recognition sensor 62.

[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A special intelligent fixture for processing hardware mold blanks, comprising: a stamping machine (1); Its features are, It also includes a vertical moving frame (2); the vertical moving frame (2) is slidably connected to the stamping machine (1); two drive motors (21) are installed on the stamping machine (1); a power shaft (22) is fixedly connected to the output end of the drive motor (21); a rotating arm (23) is fixedly connected to the power shaft (22); a synchronous shaft (25) is rotatably connected between the two rotating arms (23); a transmission arm (24) is rotatably connected between the synchronous shaft (25) and the upper side of the vertical moving frame (2); a transmission arm (24) is also rotatably connected between the synchronous shaft (25) and the lower side of the vertical moving frame (2); a mold (3) is fixedly connected to the upper and lower sides of the vertical moving frame (2); The die (3) is provided with a moving groove structure (301) for guiding the movement of the steel belt; the die (3) is equipped with an electric intelligent conveying roller group (35) for conveying the movement of the steel belt; a fixed block (41) is fixedly connected to the upper and lower sides of the stamping machine (1), and the two dies (3) are located between the two fixed blocks (41); a pressure plate (42) is slidably connected to the fixed block (41); a punch (43) is fixedly connected to the fixed block (41); the punch (43) is slidably connected to the pressure plate (42) on the same side; a compression spring (44) is fixedly connected between the pressure plate (42) and the corresponding fixed block (41); each die (3) is provided with a punching structure (302) corresponding to the punch (43) on the same side.

2. The intelligent fixture for machining hardware mold blanks according to claim 1, characterized in that, The front and rear sides of the moving groove structure (301) of the mold (3) are each slidably connected to a wedge-shaped clamping plate (31) that aligns with the corresponding pressure plate (42); a slide rod (32) is fixedly connected to the wedge-shaped clamping plate (31); a tension spring (33) is fixedly connected between the slide rod (32) and the corresponding mold (3).

3. The intelligent fixture for machining hardware mold blanks according to claim 1, characterized in that, Several limiting strips (34) are fixedly connected inside the moving groove structure (301) of the mold (3).

4. The intelligent fixture for machining hardware mold blanks according to claim 1, characterized in that, The punch (43) has an air outlet structure (4301) inside; the fixing block (41) is fixed with an air inlet pipe (45) that connects to the corresponding air outlet structure (4301) inside the punch (43).

5. The intelligent fixture for machining hardware mold blanks according to claim 4, characterized in that, The vent structure (4301) is designed to be inclined forward toward the corresponding mold (3).

6. The intelligent fixture for machining hardware mold blanks according to claim 1, characterized in that, The mold (3) is equipped with a heater (5).

7. The intelligent fixture for machining hardware mold blanks according to claim 6, characterized in that, The heater (5) is a heat medium heater. The heater (5) has a cavity structure for containing heat medium. The heater (5) has an inlet port structure and an outlet port structure connected to the cavity structure in sequence. The inlet port structures of the two heaters (5) are connected by a liquid delivery pipe (51). The outlet port structures of the two heaters (5) are connected by a return pipe (52).

8. The intelligent fixture for machining hardware mold blanks according to claim 1, characterized in that, The limit strip (34) is made of elastic rubber material.

9. A special intelligent fixture for machining hardware mold blanks according to any one of claims 1-8, characterized in that, Two fixed rods (61) are fixedly connected to the stamping machine (1); an image recognition sensor (62) for observing the stamping effect of steel strip hardware is installed on the fixed rods (61).

10. A special intelligent fixture for machining hardware mold blanks according to claim 9, characterized in that, A shock absorber (63) is provided between the fixed rod (61) and the corresponding image recognition sensor (62).

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