Stamping die structure convenient for precise positioning

Abstract

The invention discloses a stamping die structure convenient to precisely position, and relates to the technical field of stamping die structures.The stamping die structure convenient to precisely position comprises a workbench, a die frame is fixed to the upper surface of the workbench, a supporting rod is fixed to the workbench in a penetrating mode, and a hydraulic plate is arranged on the supporting rod in a penetrating and sliding mode; according to the stamping die structure convenient to precisely position, when stamping operation is carried out, a hydraulic machine is started, a hydraulic plate moves downwards to extrude a pressure rod, accordingly, the pressure plate and a clamping plate can be driven to move downwards, a workpiece needing to be stamped is pressed and fixed, and therefore the workpiece can be prevented from deviating during stamping operation; the workpiece quality is influenced; and after stamping is finished, a hydraulic press drives a hydraulic plate to move upwards, a pressure rod is not extruded, and a supporting spring is in a compressed state, so that an ejection block can be driven to move upwards to perform demolding operation, and a worker can conveniently take a workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping die structures, and particularly to a stamping die structure facilitating precise positioning. Background Art

[0002] With the rapid development of the national economy, the market demand for dies is continuously increasing. In recent years, with the development of modern industry, dies have been widely used in fields such as construction, transportation, automobiles, energy, and consumer electronics. The die industry has been developing rapidly at a growth rate of about 15%. The die industry has also undergone great changes. A stamping die is a special process equipment for processing materials (metals or non-metals) into parts (or semi-finished products) in cold stamping processing, called a cold stamping die (commonly known as a cold punching die). Stamping is a pressure processing method in which, at room temperature, a die installed on a press applies pressure to a material to cause separation or plastic deformation, thereby obtaining the required parts. Stamping dies are the most commonly used in the production of mechanical components.

[0003] However, for conventional stamping dies, before stamping, the workpiece needs to be positioned manually, and then the stamping operation is carried out. However, during the stamping process, when the stamping die performs stamping, the workpiece still tends to shift during stamping, resulting in deviation in the stamping of the workpiece, reducing the stamping quality of the workpiece and the product yield. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a stamping die structure facilitating precise positioning, which solves the problems raised in the above background art.

[0005] To achieve the above purposes, the present invention is realized through the following technical solutions: A stamping die structure facilitating precise positioning, including a workbench, on the upper surface of which a die frame is fixed. A support rod penetrates and is fixed on the workbench. A hydraulic plate penetrates and slides on the support rod. The end point of the support rod penetrates and is fixed with a support plate. Above the support plate, a hydraulic press is fixed. The output end of the hydraulic press is fixed with a hydraulic rod. The hydraulic rod penetrates and slides on the support plate. The end point of the hydraulic rod is fixedly connected above the hydraulic plate. Below the hydraulic plate, an upper die core is fixed. Inside the die frame, a lower die core is fixed. Above the die frame, a pressing device is provided. On the front and back of the die frame, a limiting device is provided. On both sides of the die frame, an arranging device is provided; Among them, the pressing device includes a pressure rod, a return spring, a clamping plate, a support spring, a connecting block, a top block, a connecting rod, a transfer block, a sliding rod, and a pressure plate. The pressure rod slides in the notch of the die frame. A clamping plate is slidably connected in the notch of the pressure rod. Above the clamping plate, a return spring is fixed. The return spring slides in the notch of the pressure rod.

[0006] According to the above technical solution, a connection block is fixed below the pressure rod. A top block is fixed at one end of the connection block. The top block slides in the notch of the mold frame, and the end point of the top block slides in the notch of the lower mold core. A connecting rod is fixed at the other end of the connection block. A transfer block is fixed at the end point of the connecting rod. The transfer block slides in the notch of the mold frame. A sliding rod is fixed above the transfer block. The sliding rod slides in the notch of the mold frame. A pressure plate is fixed at the end point of the sliding rod.

[0007] According to the above technical solution, a support spring is fixed below the connection block. The support spring slides in the notch of the mold frame. The elastic coefficient of the return spring is ten times that of the support spring.

[0008] According to the above technical solution, the limiting device includes a top rod, a sliding plate, a displacement rod, a limiting plate, a limiting block and a sliding nail. The top rod is fixed below the connecting rod.

[0009] According to the above technical solution, the sliding nail is slidably connected in the notch of the mold frame. The sliding plate is fixed at the end point of the sliding nail. The end point of the top rod slides in the notch of the sliding plate.

[0010] According to the above technical solution, a displacement rod is fixedly installed on the sliding plate. A limiting plate is fixedly installed at the end point of the displacement rod. A limiting block is fixed on the limiting plate. The limiting block slides in the notch of the mold frame.

[0011] According to the above technical solution, the sorting device includes a pressure spring, a pressure block, an extension rod, a hinge block, a sliding block and a displacement plate. The pressure block is arranged above the transfer block. The pressure block slides in the notch of the sliding rod. A pressure spring is arranged above the pressure block. The pressure spring slides in the notch of the sliding rod.

[0012] According to the above technical solution, an extension rod is hinged on the pressure block. The end point of the extension rod is hinged on the hinge block. The hinge block slides on the notch of the mold frame. A displacement plate is fixed on the hinge block. A sliding block slides on the displacement plate. The sliding block slides on the notch of the mold frame.

[0013] The present invention provides a stamping die structure convenient for precise positioning, having the following beneficial effects: (1). The present invention is provided with a pressing device. When performing a stamping operation, by starting the hydraulic press, the hydraulic plate moves downward to squeeze the pressure rod, thereby driving the pressure plate and the clamping plate to move downward to tightly fix the workpiece to be stamped, preventing the workpiece from shifting during the stamping operation and affecting the quality of the workpiece. After the stamping is completed, the hydraulic press drives the hydraulic plate to move upward, no longer squeezing the pressure rod. Since the support spring is in a compressed state, the top block can be driven to move upward for demolding operation, facilitating the staff to pick up the workpiece.

[0014] (2). The present invention is provided with a limiting device. When the hydraulic press starts to drive the hydraulic rod and the hydraulic plate to press down the pressure rod, the pressure rod presses down to drive two sets of ejector rods to press down. The two sets of ejector rods act on two sets of sliding plates, causing the sliding pins on the two sets of sliding plates to slide along the notches on the die frame, bringing the two sets of sliding plates closer. When the two sets of sliding plates get closer, they drive two sets of displacement rods closer. When the two sets of displacement rods get closer, they drive two sets of limiting plates and two sets of limiting blocks closer. When the two sets of limiting plates get closer, the material on the die frame is centered left and right. Cooperating with the pressing device, the material is centered during stamping, preventing the material from shifting before stamping and making the positioning more accurate during stamping, thus improving the yield rate.

[0015] (3). The present invention is provided with an arrangement device. When the two sets of pressure rods move downward, driving two sets of connecting rods, two sets of adapter blocks and two sets of sliding rods to move downward, they drive two sets of pressure springs and two sets of pressure blocks to move downward. The pressure blocks act on the extension rods, causing one end of the extension rod to rotate on the pressure block and the other end to rotate on the hinge block. As the pressure blocks move downward, the hinge blocks slide obliquely downward, bringing the two sets of hinge blocks closer. When the two sets of hinge blocks get closer, they drive two sets of displacement plates and the sliding blocks closer. As the two sets of sliding blocks get closer, the material is centered front and back. Cooperating with the pressing device and the limiting device, the material is accurately fixed on the die frame and will not displace during stamping, greatly improving the stamping positioning accuracy. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of a partial structure of the present invention; Figure 3 is a schematic cross-sectional view of a partial structure of the present invention; Figure 4 is a schematic cross-sectional structure diagram of the present invention; Figure 5 is a schematic diagram of a local structure of the present invention; Figure 6 is a schematic diagram of a partial structure of the limiting device of the present invention.

[0017] In the figure: 1, workbench; 2, support rod; 3, hydraulic plate; 4, hydraulic rod; 5, support plate; 6, hydraulic press; 7, pressing device; 8, limiting device; 9, sorting device; 10, mold frame; 111, upper mold core; 112, lower mold core; 701, pressure rod; 702, return spring; 703, clamping plate; 704, support spring; 705, connecting block; 706, ejector block; 707, connecting rod; 708, adapter block; 709, sliding rod; 710, pressure plate; 801, ejector rod; 802, sliding plate; 803, displacement rod; 804, limiting plate; 805, limiting block; 806, sliding pin; 901, pressure spring; 902, pressure block; 903, extension rod; 904, hinge block; 905, sliding block; 906, displacement plate. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-6 , an embodiment of the present invention is: A stamping die structure for facilitating precise positioning, including a workbench 1, a mold frame 10 is fixed on the upper surface of the workbench 1, a support rod 2 is penetrated and fixed on the workbench 1, a hydraulic plate 3 is penetrated and slid on the support rod 2, the end point of the support rod 2 is penetrated and fixed with a support plate 5, a hydraulic press 6 is fixed above the support plate 5, the output end of the hydraulic press 6 is fixed with a hydraulic rod 4, the hydraulic rod 4 is penetrated and slid on the support plate 5, the end point of the hydraulic rod 4 is fixedly connected above the hydraulic plate 3, an upper mold core 111 is fixed below the hydraulic plate 3, a lower mold core 112 is fixed inside the mold frame 10, and a pressing device 7 is arranged above the mold frame 10.

[0020] Among them, the pressing device 7 includes a pressure rod 701, a return spring 702, a clamping plate 703, a support spring 704, a connecting block 705, a top block 706, a connecting rod 707, a transfer block 708, a sliding rod 709 and a pressure plate 710. The pressure rod 701 slides in the notch of the mold frame 10. A clamping plate 703 is slidably connected in the notch of the pressure rod 701. A return spring 702 is fixed above the clamping plate 703. The return spring 702 slides in the notch of the pressure rod 701. A connecting block 705 is fixed below the pressure rod 701. A top block 706 is fixed at one end of the connecting block 705. The top block 706 slides in the notch of the mold frame 10. The end point of the top block 706 slides in the notch of the lower mold core 112. A connecting rod 707 is fixed at the other end of the connecting block 705. A transfer block 708 is fixed at the end point of the connecting rod 707. The transfer block 708 slides in the notch of the mold frame 10. A sliding rod 709 is fixed above the transfer block 708. The sliding rod 709 slides in the notch of the mold frame 10. A pressure plate 710 is fixed at the end point of the sliding rod 709. A support spring 704 is fixed below the connecting block 705. The support spring 704 slides in the notch of the mold frame 10. The elastic coefficient of the return spring 702 is ten times that of the support spring 704. When the hydraulic press 6 is started, the hydraulic rod 4 drives the hydraulic plate 3 and the upper mold core 111 to move downward. As the hydraulic plate 3 moves downward, pressure acts on the pressure rod 701, and the pressure rod 701 moves downward. The downward movement of the pressure rod 701 drives the clamping plate 703 and the return spring 702 to move downward, so that the clamping plate 703 presses down to clamp the material and fix the left and right positions of the material. While the pressure rod 701 presses down, it also drives the connecting block 705 to move downward. The downward movement of the connecting block 705 drives the top block 706 and the connecting rod 707 to move downward. The downward movement of the connecting rod 707 drives the transfer block 708 to move downward. The downward movement of the transfer block 708 drives the sliding rod 709 to move downward. The downward movement of the sliding rod 709 drives the pressure plate 710 to move downward. As the pressure plate 710 moves downward, the pressure plate 710 presses the material to position the material and prevent the material from shifting during the stamping process. The elastic coefficient of the return spring 702 is ten times that of the support spring 704. As the hydraulic plate 3 continues to move downward, when the connecting block 705 presses the support spring 704 to the limit, the return spring 702 deforms, enabling the pressure rod 701 to continue to move downward. When the hydraulic press 6 drives the hydraulic rod 4 and the hydraulic plate 3 to slowly reset after the stamping is completed, the return spring 702 slowly returns to its original position, and then the support spring 704 also slowly rebounds, driving the pressure rod 701, the clamping plate 703, the connecting block 705, the top block 706, the connecting rod 707, the transfer block 708, the sliding rod 709 and the pressure plate 710 to reset. When the top block 706 is reset under the action of the support spring 704, the end point of the top block 706 jacks up the formed material, playing a role in demoulding. Cooperating with the clamping plate 703 and the pressure plate 710 can better clamp the material and improve the stamping efficiency.

[0021] During the operation of this embodiment: When the hydraulic press 6 is started, the hydraulic press 6 applies a downward pressure to the hydraulic rod 4, causing the hydraulic rod 4 to drive the hydraulic plate 3 and the upper die insert 111 to press downward. As the hydraulic plate 3 presses downward, the pressure acts on the pressure rod 701, and the pressure rod 701 moves downward under the force. The pressure rod 701 moves downward, driving the clamping plate 703 and the return spring 702 to press downward, causing the clamping plate 703 to press the material and fix the left and right positions of the material. When the pressure rod 701 presses downward, it also drives the connecting block 705 to press downward. The connecting block 705 presses downward, driving the top block 706 and the connecting rod 707 to press downward. The connecting rod 707 presses downward, driving the adapter block 708 to press downward. The adapter block 708 presses downward, driving the sliding rod 709 to displace downward. The sliding rod 709 displaces downward, driving the pressure plate 710 to displace downward. As the pressure plate 710 displaces downward, the pressure plate 710 presses the material tightly and fixes the left and right positions of the material. Since the elastic force of the return spring 702 is ten times that of the support spring 704, as the hydraulic plate 3 continuously presses downward, the connecting block 705 presses on the support spring 704. When the support spring 704 is compressed to the limit, the return spring 702 deforms, enabling the pressure rod 701 to continue to displace downward. When the hydraulic press 6 drives the hydraulic rod 4 and the hydraulic plate 3 to slowly return to their original positions after stamping, the return spring 702 slowly returns to its original position. Subsequently, the support spring 704 is less pressured and also slowly rebounds, driving the pressure rod 701, the clamping plate 703, the connecting block 705, the top block 706, the connecting rod 707, the adapter block 708, the sliding rod 709, and the pressure plate 710 to return to their original positions. When the top block 706 returns to its original position under the action of the support spring 704, the end point of the top block 706 jacks up the formed material, playing a role in demolding. Cooperating with the clamping plate 703 and the pressure plate 710 can better clamp the material, and it is not easy to generate displacement during the stamping process, making the stamping of the upper die insert 111 more accurate. Reducing material waste and increasing the finished product rate.

[0022] Please refer to Figures 1-6, on the basis of the above embodiments, in another embodiment of the present invention, limiting devices 8 are provided at the front and rear of the mold frame 10, and arranging devices 9 are provided on both sides of the mold frame 10. The limiting device 8 includes ejector rods 801, sliding plates 802, displacement rods 803, limiting plates 804, limiting blocks 805 and sliding pins 806. The ejector rods 801 are fixed below the connecting rod 707. The sliding pins 806 are slidably connected in the slots of the mold frame 10. The sliding plates 802 are fixed at the ends of the sliding pins 806. The ends of the ejector rods 801 slide in the slots of the sliding plates 802. The displacement rods 803 are fixedly installed on the sliding plates 802. The ends of the displacement rods 803 are fixedly installed with the limiting plates 804. The limiting blocks 805 are fixed on the limiting plates 804. The limiting blocks 805 slide in the slots of the mold frame 10. When the pressure rod 701 moves downward, the pressure rod 701 drives the two groups of ejector rods 801 to move downward. The two groups of ejector rods 801 act on the two groups of sliding plates 802, causing the sliding pins 806 on the two groups of sliding plates 802 to slide downward along the slots on the mold frame 10, making the two groups of sliding plates 802 approach each other. The two groups of sliding plates 802 approaching each other drive the two groups of displacement rods 803 to approach each other. The two groups of displacement rods 803 approaching each other drive the two groups of limiting plates 804 and the two groups of limiting blocks 805 to approach each other. The two groups of limiting plates 804 approaching each other center the material on the mold frame 10. Cooperating with the pressing device 7, the material is centered and fixed during stamping, preventing the material from shifting before stamping and making the positioning more accurate during stamping, thus improving the yield rate.

[0023] The sorting device 9 includes a pressure spring 901, a pressure block 902, a telescopic rod 903, a hinge block 904, a sliding block 905 and a displacement plate 906. The pressure block 902 is arranged above the adapter block 708. The pressure block 902 slides in the notch of the sliding rod 709. A pressure spring 901 is arranged above the pressure block 902. The pressure spring 901 slides in the notch of the sliding rod 709. A telescopic rod 903 is hinged to the pressure block 902. The end point of the telescopic rod 903 is hinged to a hinge block 904. The hinge block 904 slides in the notch of the mold frame 10. A displacement plate 906 is fixed to the hinge block 904. A sliding block 905 slides on the displacement plate 906. The sliding block 905 slides in the notch of the mold frame 10. When the two groups of pressure rods 701 move downward, driving the two groups of connecting rods 707, the two groups of adapter blocks 708 and the two groups of sliding rods 709 to move downward, the two groups of pressure springs 901 and the two groups of pressure blocks 902 are driven to move downward. The downward movement of the two groups of pressure blocks 902 acts on the two groups of telescopic rods 903, causing one end of the two groups of telescopic rods 903 to rotate on the two groups of pressure blocks 902 and the other end to rotate on the two groups of hinge blocks 904. As the two groups of pressure blocks 902 move downward, the two groups of hinge blocks 904 slide obliquely downward, causing the two groups of hinge blocks 904 to approach each other. The mutual approach of the two groups of hinge blocks 904 drives the two groups of displacement plates 906 and the two groups of sliding blocks 905 to approach each other. As the two groups of sliding blocks 905 approach each other, the object is centered front and back. Cooperating with the pressing device 7 and the limiting device 8, the material is accurately fixed on the mold frame 10, and no displacement will occur during stamping, greatly improving the stamping positioning accuracy.

[0024] During the operation of this embodiment: When the pressure rod 701 presses down, the pressure rod 701 drives the two sets of ejector rods 801 to press down. The downward force of the two sets of ejector rods 801 acts on the two sets of sliding plates 802, causing the sliding pins 806 on the two sets of sliding plates 802 to drive the sliding plates 802 to slide downward along the notch on the mold frame 10. The downward pressure acts on the sliding plates 802, causing the two sets of sliding plates 802 to approach each other. The two sets of sliding plates 802 approaching each other drive the two sets of displacement rods 803 to approach each other. The two sets of displacement rods 803 approaching each other drive the two sets of limit plates 804 and the two sets of limit blocks 805 to approach each other. The two sets of limit plates 804 approaching each other center the material on the mold frame 10 left and right. When the two sets of pressure rods 701 move downward while driving the two sets of connecting rods 707, the two sets of adapter blocks 708, and the two sets of sliding rods 709 downward, the sliding rods 709 drive the two sets of pressure springs 901 and the two sets of pressure blocks 902 downward. The downward movement of the two sets of pressure blocks 902 exerts pressure on the two sets of extension rods 903, causing one end of the two sets of extension rods 903 to rotate on the two sets of pressure blocks 902 and the other end to rotate on the two sets of hinge blocks 904. As the two sets of pressure blocks 902 move downward, the two sets of hinge blocks 904 are forced to slide obliquely downward, causing the two sets of hinge blocks 904 to approach each other. The two sets of hinge blocks 904 approaching each other drive the two sets of displacement plates 906 and the two sets of sliding blocks 905 to approach each other. As the two sets of sliding blocks 905 approach each other, the material is centered front and back. Cooperating with the pressing device 7 and the limiting device 8, the material is accurately fixed on the mold frame 10, and there will be no displacement during stamping, greatly improving the stamping positioning accuracy. The positioning during stamping is more accurate, and the yield rate is increased.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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 appended claims and their equivalents.

Claims

1. A stamping die structure that facilitates precise positioning, comprising a workbench (1), characterized in that: A mold frame (10) is fixed on the upper surface of the workbench (1), a support rod (2) passes through and is fixed on the workbench (1), a hydraulic plate (3) passes through and slides on the support rod (2), the end point of the support rod (2) passes through and is fixed to the support plate (5), a hydraulic press (6) is fixed above the support plate (5), a hydraulic rod (4) is fixed at the output end of the hydraulic press (6), the hydraulic rod (4) passes through and slides on the support plate (5), the end point of the hydraulic rod (4) is fixedly connected to the top of the hydraulic plate (3), an upper mold core (111) is fixed below the hydraulic plate (3), a lower mold core (112) is fixed inside the mold frame (10), a clamping device (7) is arranged above the mold frame (10), limiting devices (8) are arranged at the front and rear of the mold frame (10), and arranging devices (9) are arranged on both sides of the mold frame (10); The clamping device (7) comprises a pressure rod (701), a return spring (702), a clamping plate (703), a support spring (704), a connecting block (705), a top block (706), a connecting rod (707), a transfer block (708), a sliding rod (709) and a pressure plate (710), wherein the pressure rod (701) slides in a notch of the mold frame (10), a clamping plate (703) is slidably connected in the notch of the pressure rod (701), a return spring (702) is fixed above the clamping plate (703), and the return spring (702) slides in the notch of the pressure rod (701).

2. A stamping die structure that facilitates precise positioning according to claim 1, characterized in that: A connecting block (705) is fixed below the pressure rod (701), a top block (706) is fixed on one end of the connecting block (705), the top block (706) slides in the notch of the mold frame (10), and the end point of the top block (706) slides in the notch of the lower mold core (112), a connecting rod (707) is fixed on the other end of the connecting block (705), a transfer block (708) is fixed at the end point of the connecting rod (707), the transfer block (708) slides in the notch of the mold frame (10), a sliding rod (709) is fixed above the transfer block (708), the sliding rod (709) slides in the notch of the mold frame (10), and a pressure plate (710) is fixed at the end point of the sliding rod (709).

3. A stamping die structure that facilitates precise positioning according to claim 2, characterized in that: A support spring (704) is fixed below the connection block (705), and the support spring (704) slides in a notch of the mold frame (10). The elastic coefficient of the return spring (702) is ten times that of the support spring (704).

4. A stamping die structure that facilitates precise positioning according to claim 1, characterized in that: The limiting device (8) comprises a push rod (801), a sliding plate (802), a displacement rod (803), a limiting plate (804), a limiting block (805) and a sliding pin (806); the push rod (801) is fixed below the connecting rod (707).

5. A stamping die structure that facilitates precise positioning according to claim 4, characterized in that: The sliding pin (806) is slidably connected in the notch of the mold frame (10), the sliding plate (802) is fixed to the end point of the sliding pin (806), and the end point of the ejector rod (801) slides in the notch of the sliding plate (802).

6. A stamping die structure that facilitates precise positioning according to claim 5, characterized in that: A displacement rod (803) is fixedly mounted on the sliding plate (802), a limit plate (804) is fixedly mounted at the end point of the displacement rod (803), a limit block (805) is fixed on the limit plate (804), and the limit block (805) slides in a notch of the mold frame (10).

7. A stamping die structure that facilitates precise positioning according to claim 1, characterized in that: The arranging device (9) comprises a pressure spring (901), a pressure block (902), a stretching rod (903), a hinge block (904), a sliding block (905) and a displacement plate (906); the pressure block (902) is arranged above the adapter block (708); the pressure block (902) slides in a notch of the sliding rod (709); a pressure spring (901) is arranged above the pressure block (902); the pressure spring (901) slides in the notch of the sliding rod (709).

8. A stamping die structure that facilitates precise positioning according to claim 7, characterized in that: The pressure block (902) is hinged with a stretch rod (903), the end point of the stretch rod (903) is hinged with a hinge block (904), the hinge block (904) slides on the notch of the mold frame (10), a displacement plate (906) is fixed on the hinge block (904), a sliding block (905) slides on the displacement plate (906), and the sliding block (905) slides on the notch of the mold frame (10).

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