Hot rolling stamping die assembly

Abstract

The utility model discloses a hot rolling stamping die assembly which comprises a fixed die, a hot rolling piece is placed on the upper surface of the fixed die, a punch is inserted into the upper surface of the fixed die, the outer wall of the punch abuts against the contact face of the hot rolling piece, a base plate is fixedly connected to the top end of the punch, and a telescopic rod is fixedly connected to the center of the upper surface of the base plate. According to the hot-rolling stamping die assembly, through cooperation of the fixed die, the hot-rolling part, the punch, the base plate, the telescopic rod and the stripping mechanism, the telescopic rod, the base plate and the punch reset upwards, and during the period, when the punch is pulled out of the inner wall formed by stamping of the hot-rolling part, a rubber head can generate downward acting force on the upper surface of the hot-rolling part through potential energy accumulated in the compression state of a compression spring; in addition, the punching head is prevented from being damaged due to violent disassembly, and the punching head can be well used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-rolled piece stamping, in particular to a hot-rolling stamping die assembly. Background Art

[0002] Hot-rolled products are metal products produced through the hot rolling process, including steel plates, strips, bars, and pipes. Hot rolling is a metalworking method characterized by rolling above the recrystallization temperature. This process primarily uses continuously cast slabs or blooms as raw material, and is completed through heating, rolling, and coiling.

[0003] Hot-rolled products are widely used. They can be used to make various structural parts and containers, and can also be used as raw materials for cold-rolled strip steel, welded pipes, cold-bent and welded steel sections. Although hot-rolled products themselves are already formed products, in some application scenarios, in order to meet specific shape and performance requirements, they need to be subsequently stamped.

[0004] Currently, when a stamping die is used for hot-rolled parts, after the hot-rolled parts are stamped and formed, the stamped hot-rolled parts are easily stuck on the outer wall of the punch of the movable die, resulting in the hot-rolled parts being inconveniently removed from above the outer wall of the punch, and it takes a certain amount of time to remove them, thereby reducing processing efficiency. In addition, during the subsequent removal, violent disassembly is inevitable, which can easily damage the punch of the stamping die over time, making it unfavorable for long-term use. Utility Model Content

[0005] The purpose of the present utility model is to provide a hot rolling stamping die assembly to solve the problem raised in the above background technology that when the hot rolled workpiece stamping die is currently used, after the hot rolled workpiece is stamped and formed, the stamped hot rolled workpiece is easily stuck on the outer wall of the punch of the movable die, resulting in the inconvenience of the stamped hot rolled workpiece falling off from above the outer wall of the punch, and it takes a certain amount of time to remove it, thereby reducing the processing efficiency. In addition, during the subsequent removal, violent disassembly is inevitable, which is easy to damage the stamping die punch in the long run, which is not conducive to long-term use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hot rolling stamping die assembly, comprising a fixed die, a hot-rolled workpiece is placed on the upper surface of the fixed die, a punch is inserted into the upper surface of the fixed die, the outer wall of the punch is tightly pressed against the contact surface of the hot-rolled workpiece, the top end of the punch is fixedly connected to a base plate, a telescopic rod is fixedly connected to the center of the upper surface of the base plate, and stripping mechanisms are provided on both sides of the lower surface of the base plate, the stripping mechanism includes a rubber head, a vertical rod, a vertical cylinder, a round cover, a first gasket, a compression spring, a second gasket, a slider and a slide groove, and the two rubber heads are respectively located at the lower and middle parts of the base plate. On both sides below the surface, the rubber head is tightly pressed against the contact surface of the hot-rolled piece, and the top end of the rubber head is fixedly connected to a vertical rod, a part of the vertical rod passes through the base plate, a vertical cylinder is mounted on the upper part of the outer wall of the vertical rod, the vertical cylinder is fixedly connected to the contact surface of the base plate, a round cover is fixedly connected to the top end of the vertical cylinder, a first gasket is fixedly sleeved on the top end of the outer wall of the vertical rod, a compression spring is fixedly connected to the upper surface of the first gasket, a second gasket is fixedly connected to the top end of the compression spring, sliders are fixedly connected to both ends of the outer walls of the second gasket and the first gasket, and the slider is slidably connected to the inner wall of the vertical cylinder through a slide groove.

[0007] Preferably, the center points of the compression spring, the vertical rod and the rubber head are all located on the same horizontal vertical line.

[0008] Preferably, a force amplifying mechanism is provided between the upper surfaces of the two round covers, and the force amplifying mechanism includes a screw rod, a first groove wheel, a support cylinder, a second groove wheel, a belt, a support rod, a rotary cylinder and a handle. The screw rod is fixedly connected to the center of the upper surface of the second gasket, the outer wall of the screw rod is threadedly connected to the first groove wheel, the lower surface of the first groove wheel is fixedly connected to the support cylinder, and the support cylinder is rotatably connected to the round cover through a ball bearing, a second groove wheel is provided between the two first groove wheels, and the second groove wheel is rotatably connected to the first groove wheel through a belt, both ends of the upper surface of the second groove wheel are fixedly connected to support rods, the top end of the support rod is fixedly connected to the rotary cylinder, and the outer wall of the rotary cylinder is annular and fixed with multiple handles.

[0009] Compared with the prior art, the beneficial effects of the present invention are: the hot rolling stamping die assembly has the following advantages over the traditional technology:

[0010] Through the cooperation among the fixed die, hot-rolled workpiece, punch, base plate, telescopic rod and stripping mechanism, the driving device connected to the outside of the telescopic rod is started, so that the telescopic rod, base plate and punch quickly impact downward together, and the punch will punch the hot-rolled workpiece. After the punch completes the punching of the hot-rolled workpiece, the driving device connected to the outside of the telescopic rod is controlled again to reset the telescopic rod, base plate and punch upward. During this period, when the punch is withdrawn from the inner wall formed by the punching of the hot-rolled workpiece, the potential energy accumulated in the compressed state of the compression spring can cause the rubber head to generate a downward force on the upper surface of the hot-rolled workpiece, which can facilitate the hot-rolled workpiece after punching to fall off from above the outer wall of the punch, which is beneficial to efficient processing. In addition, it avoids damage to the punch due to violent disassembly, which is conducive to long-term and proper use.

[0011] Through the cooperation among the fixed die, hot-rolled workpiece, punch, base plate, telescopic rod, workpiece removal mechanism and force amplification mechanism, when the friction resistance between the hot-rolled workpiece after being stamped and the outer wall of the punch is large, the rotary drum can be forced to rotate, and the first groove wheel can be rotated together through the transmission of the belt. Due to the threaded connection between the first groove wheel and the screw rod, the screw rod and the second gasket can be moved downward, increasing the compression degree of the compression spring, and then the downward pressure of the rubber head on the hot-rolled workpiece can be increased, so that the hot-rolled workpiece after being stamped and the outer wall of the punch can still be properly removed and separated when the friction resistance between the hot-rolled workpiece and the outer wall of the punch is large. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 A partial enlarged view of

[0015] Figure 3 for Figure 1 Schematic diagram of the connection structure between the telescopic rod, the rotary drum and the second grooved wheel.

[0016] In the figure: 1. fixed die, 2. hot-rolled workpiece, 3. punch, 4. base plate, 5. telescopic rod, 6. rubber head, 7. vertical rod, 8. vertical cylinder, 9. round cover, 10. first gasket, 11. compression spring, 12. second gasket, 13. slider, 14. slide, 15. screw, 16. first groove pulley, 17. support cylinder, 18. second groove pulley, 19. belt, 20. support rod, 21. rotary cylinder, 22. handle. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-3 The utility model provides a technical solution: a hot rolling stamping die assembly, including a fixed die 1, the fixed die 1 can be fixedly connected to a base suitable for the stamping operation of the hot rolled workpiece 2 outside, the hot rolled workpiece 2 is placed on the upper surface of the fixed die 1, and a punch 3 is inserted into the upper surface of the fixed die 1, and the outer wall of the punch 3 is tightly against the contact surface of the hot rolled workpiece 2. The top of the punch 3 is fixedly connected to a base plate 4, and the center of the upper surface of the base plate 4 is fixedly connected to a telescopic rod 5. The top of the telescopic rod 5 is fixedly connected to the output shaft of an external driving device. The external driving device can be a cylinder, an oil cylinder or an electric cylinder. A stripping mechanism is provided on both sides of the lower surface of the base plate 4. The stripping mechanism includes a rubber head 6, a vertical rod 7, a vertical cylinder 8, a round cover 9, a first gasket 10, a compression spring 11, a second gasket 12, a slider 13 and a slide groove 14. The two rubber heads 6 are respectively located on both sides below the lower surface of the base plate 4. The rubber head 6 is made of rubber material and has a certain flexibility. The rubber head 6 is tightly against the contact surface of the hot rolled workpiece 2. The top of the rubber head 6 is fixed with a vertical rod 7, a part of the vertical rod 7 passes through the base plate 4, the outer wall of the vertical rod 7 is clearance-matched with the through-surface of the base plate 4, and a vertical tube 8 is set above the outer wall of the vertical rod 7, and the vertical tube 8 is fixedly connected to the contact surface of the base plate 4, and a round cover 9 is fixed to the top of the vertical tube 8. The top of the outer wall of the vertical rod 7 is fixedly sleeved with a first gasket 10, and the upper surface of the first gasket 10 is fixed with a compression spring 11. The coefficient of the compression spring 11 is 10-50N / CM, and the top of the compression spring 11 is fixed with a second gasket 12. The second gasket 12 and the outer wall of the first gasket 10 are fixed with sliders 13 at both ends. The slider 13 is slidably connected to the inner wall of the vertical tube 8 through a slide groove 14. The slider 13 can slide up and down inside the slide groove 14, but cannot move forward, backward, left and right. The center points of the compression spring 11, the vertical rod 7 and the rubber head 6 are all located on the same horizontal vertical line. The force generated by the compression of the compression spring 11 can evenly apply force to the vertical rod 7 and the rubber head 6.

[0019] A force-increasing mechanism is provided between the upper surfaces of the two round covers 9. The force-increasing mechanism includes a screw 15, a first sheave 16, a support cylinder 17, a second sheave 18, a belt 19, a support rod 20, a rotary cylinder 21, and a handle 22. The screw 15 is fixed to the center of the upper surface of the second gasket 12. The outer wall of the screw 15 is threadedly connected to the first sheave 16. The lower surface of the first sheave 16 is fixed to the support cylinder 17. The inner wall of the support cylinder 17 is clearance-matched with the outer wall of the screw 15. The support cylinder 17 is rotatably connected to the round cover 9 through a ball bearing. A second sheave 18 is provided between the two first sheaves 16. The second sheave 18 is rotatably connected to the first sheave 16 via a belt 19. Support rods 20 are fixedly connected to both ends of the upper surface of the second sheave 18. The second sheave 18 is rotatably connected to the telescopic rod 5 via a ball bearing. A rotary cylinder 21 is fixedly connected to the top of the support rod 20. The inner wall of the rotary cylinder 21 is clearance-matched with the outer wall of the telescopic rod 5. The outer wall of the rotary cylinder 21 is annular and fixed with a plurality of handles 22. The handles 22 can facilitate the operator to apply force to rotate the rotary cylinder 21.

[0020] During the use of the hot rolling stamping die assembly, the hot rolled workpiece 2 to be stamped is first placed flat on the upper surface of the fixed die 1, so that the position of the hot rolled workpiece 2 to be stamped is aligned with the bottom end of the punch 3, and then the driving device connected to the outside of the telescopic rod 5 is started, so that the telescopic rod 5, the base plate 4 and the punch 3 are quickly impacted downward together. During this process, the rubber heads 6 on both sides of the lower surface of the base plate 4 will contact the upper surface of the hot rolled workpiece 2 before the bottom end of the punch 3, and then the compression spring 11 opens the compression deformation, and the force between the bottom end of the rubber head 6 and the hot rolled workpiece 2 increases, and then the punch 3 will press the hot rolled workpiece 2. The hot-rolled workpiece 2 is subjected to the stamping operation. After the punch 3 completes the stamping of the hot-rolled workpiece 2, the driving device connected to the outside of the telescopic rod 5 is controlled again to reset the telescopic rod 5, the base plate 4 and the punch 3 upward. During this period, when the punch 3 is withdrawn from the inner wall formed by the stamping of the hot-rolled workpiece 2, the potential energy accumulated in the compressed state of the compression spring 11 can cause the rubber head 6 to generate a downward force on the upper surface of the hot-rolled workpiece 2, which can facilitate the falling off of the hot-rolled workpiece 2 from above the outer wall of the punch 3 after the stamping, which is beneficial to the efficient processing. In addition, there is no need to damage the punch 3 due to violent disassembly, which is conducive to long-term and proper use.

[0021] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0023] It should also be noted that, for ease of description, only the parts related to the relevant disclosure are shown in the accompanying drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other; it should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units; it should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are schematic and not restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more"; the names of the messages or information exchanged between the multiple devices in the embodiments of the present disclosure are only for illustrative purposes, and are not used to limit the scope of these messages or information.

[0024] The machinery, parts and equipment used in the present invention are all conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot rolling stamping die assembly, comprising a fixed die (1), characterized in that: A hot-rolled piece (2) is placed on the upper surface of the fixed die (1), a punch (3) is inserted into the upper surface of the fixed die (1), the outer wall of the punch (3) is tightly pressed against the contact surface of the hot-rolled piece (2), the top end of the punch (3) is fixedly connected to a base plate (4), the center of the upper surface of the base plate (4) is fixedly connected to a telescopic rod (5), and stripping mechanisms are provided on both sides of the lower surface of the base plate (4); The stripping mechanism comprises a rubber head (6), a vertical rod (7), a vertical cylinder (8), a round cover (9), a first gasket (10), a compression spring (11), a second gasket (12), a slider (13) and a slide groove (14); The two rubber heads (6) are respectively located on both sides below the lower surface of the base plate (4), and the rubber heads (6) are tightly pressed against the contact surface of the hot-rolled piece (2). The top end of the rubber head (6) is fixedly connected to a vertical rod (7), a part of the vertical rod (7) passes through the base plate (4), and a vertical cylinder (8) is set on the upper part of the outer wall of the vertical rod (7). The vertical cylinder (8) is fixedly connected to the contact surface of the base plate (4), and a round cover (9) is fixedly connected to the top end of the vertical cylinder (8). The top end of the outer wall of the vertical rod (7) is fixedly sleeved with a first gasket (10), the upper surface of the first gasket (10) is fixedly connected to a compression spring (11), and the top end of the compression spring (11) is fixedly connected to a second gasket (12), and both ends of the outer walls of the second gasket (12) and the first gasket (10) are fixedly connected with sliders (13), and the slider (13) is connected to the inner wall of the vertical cylinder (8) by sliding engagement through a slide groove (14).

2. The hot rolling stamping die assembly according to claim 1, characterized in that: The center points of the compression spring (11), the vertical rod (7) and the rubber head (6) are all located on the same horizontal vertical line.

3. The hot rolling stamping die assembly according to claim 1, characterized in that: A force amplification mechanism is provided between the upper surfaces of the two circular covers (9); The force-increasing mechanism comprises a screw (15), a first groove wheel (16), a support cylinder (17), a second groove wheel (18), a belt (19), a support rod (20), a rotary cylinder (21) and a handle (22); The screw rod (15) is fixed to the center of the upper surface of the second gasket (12); the outer wall of the screw rod (15) is threadedly connected to the first groove wheel (16); the lower surface of the first groove wheel (16) is fixed to a support cylinder (17); the support cylinder (17) is rotatably connected to the round cover (9) through a ball bearing; a second groove wheel (18) is provided between the two first groove wheels (16); the second groove wheel (18) is rotatably connected to the first groove wheel (16) through a belt (19); both ends of the upper surface of the second groove wheel (18) are fixed to support rods (20); the top end of the support rod (20) is fixed to a rotary cylinder (21); the outer wall of the rotary cylinder (21) is annular and fixed with a plurality of handles (22).

Images