A shearing structure for machining a part

Abstract

The utility model discloses a shearing structure for part processing, including initiative prebreak punch, auxiliary positioning punch, reinforcing edge board and auxiliary prebreak punch, auxiliary prebreak punch is connected between reinforcing edge board through bolt, is in the just below auxiliary positioning punch and is set with initiative prebreak punch staggered, is equipped with the breakage support station below the blade of initiative prebreak punch and is set with initiative prebreak punch corresponding front side, and the bottom of breakage support station is supported by a plurality of first piston support rigidly, and the lower piston end of first piston support rod is slidably limited in U-shaped hydraulic pipeline, and the piston end surface is elastically connected with the hydraulic pipeline bottom surface through hydraulic spring, the hydraulic pipeline part is combined in three prism pyramid inclined block, and the pipeline in the protruding of preposition inclined block is connected with the second support rod piston end through hydraulic spring, and the upper end rigid connection of second support rod material support plate is integrated with breakage support station on the rear side of material support plate and is inclined upward, the utility model discloses buffer punch impact force through elastic support, and effectively promotes the part shearing cross section finish and size consistency.

Description

Technical Field

[0001] This utility model relates to the field of machining, specifically a shearing structure for machining parts. Background Technology

[0002] In the wave of modern manufacturing's deep transformation towards high precision, high efficiency, and flexibility, parts processing, as a key link in core industries such as equipment manufacturing, automotive industry, and electronic information, has become a core element determining the overall competitiveness of the industrial chain in terms of process reliability and production efficiency. Among them, shearing structure, as the core process equipment for parts forming, undertakes the task of precise separation and preliminary forming of raw materials such as sheet metal and profiles, and is a fundamental support link for realizing large-scale and standardized parts production.

[0003] Currently, conventional shearing structures generally rely on rigid mechanical drive modes. When faced with the processing requirements of lightweight new materials such as high-strength steel and aluminum alloys, they often expose obvious shortcomings. This not only easily leads to quality problems such as excessive burrs on parts and poor cross-sectional flatness, but also makes it difficult to ensure the stability of processing quality. Ultimately, they cannot meet the stringent requirements of high-end equipment for the dimensional accuracy and consistency of parts. Utility Model Content

[0004] This utility model provides a shearing structure for machining parts, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A shearing structure for machining parts, comprising:

[0007] The auxiliary pre-cut punch is bolted between the reinforcing side plates and is positioned directly below the auxiliary positioning punch, offset from the active pre-cut punch.

[0008] The auxiliary pre-cutting punch has a punching support of equal length directly below the cutting edge of the active pre-cutting punch on its front side. Initially, the punching support is flush with the auxiliary pre-cutting punch. The lower surface of the punching support is rigidly supported perpendicularly to multiple first piston rods. The lower piston ends of the first piston rods are slidably confined inside the hydraulic lines in a shape-fitting manner. The piston end face of the first piston rod is elastically connected to the bottom surface of the hydraulic lines by a hydraulic spring. Thus, when the active pre-cutting punch performs punching on the part, the part is elastically supported from the bottom.

[0009] As a preferred technical solution of this utility model, it also includes an active pre-cutting punch, with a cutting edge inclined at a specified angle on the lower side, and reinforcing ribs integrally attached to the wall along the shearing and punching direction for reinforcement, and a connecting seat for connecting to hydraulic equipment at the center of the upper surface.

[0010] As a preferred technical solution of this utility model, it also includes an auxiliary positioning punch, the surface of which is in contact with the shearing part is set as a plane, and is arranged parallel to and adjacent to one side of the active pre-cutting punch, and also has a connecting seat for connecting to the hydraulic equipment at the center of the upper surface.

[0011] As a preferred technical solution of this utility model, it also includes a reinforcing side plate, which is set on the left and right sides of the active pre-break punch and the auxiliary positioning punch. The surface is bolted to the corresponding positions of the active pre-break punch and the auxiliary positioning punch, and the limiting lifting slide is used to limit the lifting of the active pre-break punch and the auxiliary positioning punch. The limiting lifting slide is used to limit the sliding of the active pre-break punch and the auxiliary positioning punch in the vertical direction.

[0012] As a preferred technical solution of this utility model, the hydraulic pipeline is a U-shaped connecting pipeline, and the position corresponding to the first piston rod is integrally integrated into the interior of the triangular pyramidal inclined block. Furthermore, the hydraulic pipeline protruding from the inclined block in front is also equipped with a hydraulic spring to elastically connect with the piston end of the second rod.

[0013] As a preferred technical solution of this utility model, the upper end of the second support rod that passes through the hydraulic pipeline is rigidly connected to the material pallet, and the rear side of the material pallet is integrally combined with the punching support in an inclined upward manner, thereby facilitating the guiding and conveying of the punched parts.

[0014] As a preferred embodiment of this utility model, the hydraulic pipeline stores a stable and safe fluid between the second support rod and the first piston support rod. Furthermore, a highly elastic and strong expansion bladder is integrally formed on the middle connecting pipe of the hydraulic pipeline, and the inclined block has sufficient expansion space pre-set at the position of the expansion bladder.

[0015] The present invention has the following advantages:

[0016] 1. By setting up an elastic support system consisting of a punching support platform for the auxiliary pre-cutting punch, a first piston rod, and a hydraulic spring, the punching support platform compresses the hydraulic spring through the first piston rod to form an elastic buffer during the active pre-cutting punching process, replacing the traditional rigid support. The support force can be adaptively adjusted according to the material and thickness of the part, which can not only avoid excessive burrs on the part caused by rigid impact, but also ensure a smooth shearing process through elastic feedback, significantly improving the surface finish and processing quality stability of the part.

[0017] 2. With the integrated design of the second support rod and the inclined material tray, after punching, as the hydraulic spring releases its energy and returns to its original position, the second support rod drives the material tray to rise synchronously. The inclined structure can automatically slide down using the weight of the parts themselves, eliminating the need for manual material handling. This reduces manual intervention in the production process, improves overall processing efficiency, and avoids scratches on the surface of the parts or secondary positioning errors that may be caused by manual material handling, thus balancing production efficiency and product quality. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a shearing structure used for part machining;

[0019] Figure 2 A cross-sectional view of the shearing structure used for machining parts along the hydraulic lines;

[0020] Figure 3 A cross-sectional view of the shearing structure used for machining the part at the hydraulic piston rod;

[0021] Figure 4 A cross-sectional view of the shearing structure used for machining the part at the support rod;

[0022] Figure 5 This is an overall cross-sectional view of the shearing structure used for machining the part.

[0023] In the diagram: 1. Active pre-cut punch; 2. Auxiliary positioning punch; 3. Reinforcing side plate; 31. Limiting lifting slide; 4. Auxiliary pre-cut punch; 41. Inclined block; 42. Hydraulic pipeline; 43. First piston rod; 44. Hydraulic spring; 45. Punch support; 46. Material pallet; 47. Second support rod. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Please see Figures 1-5 A shearing structure for machining parts, comprising:

[0027] The active pre-cutting punch 1 has a cutting edge or straight edge inclined at a specified angle on the lower side, and a reinforcing rib integrally attached to the wall along the shearing and punching direction. The upper surface has a connecting seat at the center position for connection with hydraulic equipment.

[0028] The auxiliary positioning punch 2 has a plane surface that contacts the shearing part and is arranged parallel to and adjacent to one side of the active pre-cutting punch 1. It also has a connecting seat for connecting to the hydraulic equipment at the center of its upper surface.

[0029] The reinforcing side plate 3 is set on the left and right sides of the active pre-cutting punch 1 and the auxiliary positioning punch 2, and its surface is bolted to the corresponding positions of the active pre-cutting punch 1 and the auxiliary positioning punch 2 to limit the lifting of the active pre-cutting punch 1 and the auxiliary positioning punch 2. The limiting lifting slide 31 is used to limit the sliding of the active pre-cutting punch 1 and the auxiliary positioning punch 2 in the vertical direction.

[0030] The auxiliary pre-cut punch 4 is bolted between the reinforcing side plates 3 and is positioned directly below the auxiliary positioning punch 2, offset from the active pre-cut punch 1.

[0031] A punching support 45 is provided at the same length as the cutting edge of the active pre-cutting punch 1 on the front side of the auxiliary pre-cutting punch 4. Initially, the punching support 45 is flush with the auxiliary pre-cutting punch 4. The lower surface of the punching support 45 is rigidly supported perpendicularly to multiple first piston rods 43. The lower piston ends of the first piston rods 43 are slidably confined inside the hydraulic line 42 in a shape-fitting manner. The piston end face of the first piston rod 43 is elastically connected to the bottom surface of the hydraulic line 42 by a hydraulic spring 44. Thus, when the active pre-cutting punch 1 performs punching of the part, the part is elastically supported from the bottom, preventing the part from curling during punching. The hydraulic line 42 is a U-shaped connecting pipe, and the position corresponds to the first piston rod 43. The entire assembly is integrated inside the triangular pyramid-shaped inclined block 41. The hydraulic pipe 42, protruding from the inclined block 41, is also elastically connected to the piston end of the second support rod 47 via a hydraulic spring 44. The upper end of the second support rod 47 extends through the hydraulic pipe 42 and is rigidly connected to the material support plate 46. The rear side of the material support plate 46 is integrally integrated with the punching support 45 in an upward-sloping manner, facilitating the guiding and conveying of punched parts. A stable and safe liquid is stored inside the hydraulic pipe 42 between the second support rod 47 and the first piston support rod 43. A highly elastic and strong expansion bladder is integrally provided on the middle connecting pipe of the hydraulic pipe 42, and sufficient expansion space is pre-set inside the inclined block 41 at the position of the expansion bladder.

[0032] Before processing, the part to be sheared is placed on the punching support 45 of the auxiliary pre-cutting punch 4 and the material tray 46 (initially flush). After starting the hydraulic equipment, the auxiliary positioning punch 2 moves down along the limited lifting slide 31 of the reinforcing side plate 3, and is positioned and clamped against the surface of the part. Then, the active pre-cutting punch 1 moves down synchronously to punch the part to be sheared with an inclined cutting edge. During punching, the part applies pressure to the punching support 45, which drives the bottom first piston rod 43 to slide down along the hydraulic pipeline 42, compressing the hydraulic spring 44 to form elastic support and buffer the impact force. After punching is completed, the active pre-cutting punch 1 and the auxiliary positioning punch 2 move up to reset. The hydraulic spring 44 releases energy to push the first piston rod 43 to rise. The safety liquid in the hydraulic pipeline 42 flows back, the second rod 47 and the material tray 46 reset, and the part slides down automatically along the inclined material tray 46. In addition, the expansion bladder in the middle of the hydraulic pipeline 42 can be elastically expanded by the pre-set expansion space of the inclined block 41 to store liquid and ensure the stability of the hydraulic system.

[0033] In summary, by setting up an elastic support system consisting of the punching support 45, the first piston rod 43, and the hydraulic spring 44 of the auxiliary pre-cutting punch 4, the punching support 45 compresses the hydraulic spring 44 through the first piston rod 43 to form an elastic buffer during the punching of the active pre-cutting punch 1, replacing the traditional rigid support. The support force can be adaptively adjusted according to the material and thickness of the part, which can not only avoid excessive burrs on the part caused by rigid impact, but also ensure a smooth cutting process through elastic feedback, significantly improving the surface finish and processing quality stability of the part. With the setting of the second rod 47 and the inclined integrated material tray 46, after the punching is completed, as the hydraulic spring 44 releases energy and resets, the second rod 47 drives the material tray 46 to rise synchronously. The inclined structure can automatically slide down with the help of the part's own weight, eliminating the need for manual material handling, reducing manual intervention in the production process, improving the overall processing efficiency, and avoiding surface scratches or secondary positioning errors that may be caused by manual material handling, thus balancing production efficiency and product quality.

[0034] In the implementation of this utility model, before processing, the part to be sheared is stably placed on the punching support 45 of the auxiliary pre-cutting punch 4 and the material tray 46 (initially, the two are flush, which facilitates the positioning of the part). After starting the hydraulic equipment, the auxiliary positioning punch 2 connected to the hydraulic equipment first moves downward along the limited lifting slide 31 on the reinforcing side plate 3. Its plane contact end is tightly attached to the surface of the part, realizing accurate positioning and stable clamping of the part, and avoiding displacement of the part during punching. Subsequently, the active pre-cutting punch 1 descends synchronously along the same limited lifting slide 31 under hydraulic drive. Its lower inclined cutting edge is aligned with the part to be sheared and begins to perform punching action. During punching, the part is subjected to the downward pressure of the active pre-cutting punch 1, which simultaneously exerts a force on the punching support 45 below, causing the punching support 45 to drive the multiple first piston rods 43 at the bottom to slide downward along the hydraulic pipeline 42, thereby compressing the hydraulic pressure between the first piston rods 43 and the bottom surface of the hydraulic pipeline 42. Spring 44 provides elastic support to the bottom of the part through its elastic deformation, effectively buffering the impact of punching and avoiding problems such as excessive burrs and poor cross-sectional flatness caused by rigid support. At the same time, after punching is completed, the active pre-cutting punch 1 and the auxiliary positioning punch 2 return to their original positions along the limited lifting slide 31. The hydraulic spring 44 releases its elastic potential energy, pushing the first piston rod 43 to rise. The safety fluid in the hydraulic pipeline 42 flows back, and the second rod 47 and the material support plate 46 also return to their original positions. The punched part then slides automatically down the surface of the material support plate 46 by means of its tilt, achieving convenient guidance and transportation of the punched part. In addition, the high-elasticity, high-strength expansion bladder on the middle connecting pipe of the hydraulic pipeline 42 can elastically expand using the pre-set expansion space inside the inclined block 41 during the part punching process, storing the liquid pushed by the first piston rod 43 and the second rod 47, ensuring the stable operation of the entire hydraulic support and transmission system.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shearing structure for machining parts, characterized in that, include: The auxiliary pre-cut punch (4) is bolted between the reinforcing side plates (3) and is located directly below the auxiliary positioning punch (2) and offset from the active pre-cut punch (1); The auxiliary pre-cutting punch (4) has a punching support (45) of equal length directly below the cutting edge of the active pre-cutting punch (1) on its front side. Initially, the punching support (45) is flush with the auxiliary pre-cutting punch (4). The lower surface of the punching support (45) is rigidly supported vertically by multiple first piston rods (43). The lower piston ends of the first piston rods (43) are all slidably limited inside the hydraulic line (42) in a shape fit. The piston end face of the first piston rod (43) is elastically connected to the bottom surface of the hydraulic line (42) by a hydraulic spring (44). Thus, when the active pre-cutting punch (1) performs punching of the part, the part is elastically supported from the bottom.

2. The shearing structure for machining parts according to claim 1, characterized in that, It also includes an active pre-cutting punch (1), with a cutting edge inclined at a specified angle on the lower side, and reinforced ribs integrally attached to the wall along the shearing and punching direction, and a connecting seat for connecting to hydraulic equipment at the center of the upper surface.

3. The shearing structure for machining parts according to claim 1, characterized in that, It also includes an auxiliary positioning punch (2), the surface of which is in contact with the shearing part is set as a plane, and is arranged parallel to and adjacent to one side of the active pre-cut punch (1), and also has a connecting seat for connecting to the hydraulic equipment at the center of the upper surface.

4. The shearing structure for machining parts according to claim 1, characterized in that, It also includes a reinforcing side plate (3), which is set on the left and right sides of the active pre-cut punch (1) and the auxiliary positioning punch (2), and the surface is connected by bolts to the active pre-cut punch (1) and the auxiliary positioning punch (2) to limit the lifting of the active pre-cut punch (1) and the auxiliary positioning punch (2), and the limit lifting slide (31) is used to limit the sliding of the active pre-cut punch (1) and the auxiliary positioning punch (2) in the vertical direction.

5. The shearing structure for machining parts according to claim 1, characterized in that, The hydraulic pipeline (42) is a U-shaped connecting pipeline, and the position corresponding to the first piston rod (43) is integrally connected inside the triangular pyramid-shaped inclined block (41). In addition, the hydraulic pipeline (42) protruding from the inclined block (41) is also elastically connected to the piston end of the second rod (47) with a hydraulic spring (44).

6. The shearing structure for machining parts according to claim 5, characterized in that, The second support rod (47) extends out of the upper end of the hydraulic line (42) and is rigidly connected to the material support plate (46). The rear side of the material support plate (46) is integrated with the punching support (45) in an inclined upward manner, which facilitates the guidance and conveying of the punched parts.

7. The shearing structure for machining parts according to claim 6, characterized in that, The hydraulic pipeline (42) contains a stable and safe liquid between the second support rod (47) and the first piston support rod (43). The hydraulic pipeline (42) is integrally provided with an expansion bladder that has high elasticity and high strength. The inclined block (41) has sufficient expansion space at the position of the expansion bladder.

Images