Pressing device for punching points on cylindrical surfaces of shaft parts

Abstract

The utility model belongs to the field of mechanical design, and relates to an upper punching point pressing device for a cylindrical surface of a shaft part. The device comprises an upper die plate, a lining, an upper section die, a guide column, a lower section die, a lower die plate, a lining and a punch. An upper section die is mounted below the upper template, and a lower section die is mounted on the lower template; a semi-cylindrical cavity is formed in the middle of the joint surface of the upper mold and the lower mold, and the upper mold and the lower mold form a cylindrical cavity; puncher pin avoiding holes are formed in the bottoms of the semi-cylindrical cavities in the height direction of the device, puncher pins are installed in the puncher pin avoiding holes, and the puncher pins are part punching points in the cavities; mounting holes in the height direction of the device are formed in the two sides of the cavity of the lower die, and the lower ends of the guide columns are mounted in the mounting holes; guide holes corresponding to the mounting holes in position are formed in the two sides of the cavity of the upper section die, and bushings are mounted in the guide holes; and during mold closing, the upper end of the guide post extends into the bushing.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical design and relates to a punching and pressing device for cylindrical surfaces of shaft parts. Background Art

[0002] With the improvement of industrial level, the application of operating wire rope parts is becoming more and more extensive. As one of the core components, the quality of the wire rope assembly directly affects the performance of the operating wire rope.

[0003] Traditionally, punching points on the cylindrical surface of shaft parts are punched using a separate punch, one point at a time. This method is inefficient and requires punching 12 points on the cylindrical surface of the shaft parts for pressure reduction. This increases the difficulty of punching points and cannot ensure that the depth and spacing of the punching points are consistent. It is inconvenient for one person to operate, and it is easy to injure others if two people operate together, which is inefficient and affects product quality and production efficiency. Utility Model Content

[0004] The utility model provides a punching point and pressure-collecting device for the cylindrical surface of shaft parts, which can effectively solve the problem of punching point and pressure-collecting of shaft components, improve product quality and production efficiency, and play an important role in new product development, production urgent needs and small batch production.

[0005] Technical solution:

[0006] Provided is a punching and pressure-collecting device for cylindrical surfaces of shaft parts, comprising:

[0007] Upper template, bushing, upper die, guide pin, lower die, lower template, bushing, punch;

[0008] The upper mold is installed under the upper mold plate, and the lower mold is installed on the lower mold plate; a semi-cylindrical cavity is opened in the middle of the closing surface of the upper mold and the lower mold, and the two form a cylindrical cavity; the bottom of the semi-cylindrical cavity is provided with a punch avoidance hole along the height direction of the device, and the punch is installed in the punch avoidance hole, and the punch is used to punch the parts in the cavity; the lower mold has mounting holes along the height direction of the device on both sides of the cavity, and the lower ends of the guide pillars are installed in the mounting holes; the upper mold has guide holes corresponding to the positions of the mounting holes on both sides of the cavity, and bushings are installed in the guide holes; when the mold is closed, the upper ends of the guide pillars extend into the bushings.

[0009] Furthermore, the guide post is covered with a spring.

[0010] Furthermore, the upper die is mounted on the upper template via cylindrical pins and cylindrical head hexagon socket screws, and the lower die is also mounted on the lower template via cylindrical pins and cylindrical head hexagon socket screws.

[0011] Furthermore, the guide post is a stepped cylindrical structure, the small end of the guide post is interference fit with the mounting hole, and the large end is sliding fit with the guide hole.

[0012] Furthermore, the punch includes two groups, an upper group and an lower group, each group consists of three punching needles, and one mold closing can produce 6 punching points.

[0013] Furthermore, punching 12 points on a part requires two mold closings. Before the second mold closing, the part needs to be rotated 90 degrees along its circumference.

[0014] Beneficial effects:

[0015] The utility model provides a device for punching points on the cylindrical surface of shaft parts. Using this device, six points can be punched simultaneously, ensuring consistent punching depth and spacing. The device also has a positioning portion, suitable for punching points on the cylindrical surface of shaft parts, to prevent radial rotation and slippage during punching.

[0016] The punching point pressure-collecting device has a simple structure, is easy to operate, and has a low manufacturing cost. After adopting the punching point pressure-collecting device, it not only ensures product quality but also improves production efficiency, meets the urgent needs of customers, and wins market share for the company.

[0017] The structural design of the punching point pressure-collecting device can also be applied to the punching point pressure-collecting of components with different shaft diameters, and can also realize punching at 8 points, 16 points, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a punching and pressure-receiving device for a cylindrical surface of a shaft part provided by the utility model;

[0019] Figure 2 This is a top view of a punching and pressure-receiving device for a cylindrical surface of a shaft part provided by the utility model;

[0020] Figure 3 yes Figure 1 The cross-sectional view of the AA surface;

[0021] Explanation of the accompanying numbers: 1. Upper template; 2. Left bushing; 3. Upper die; 4. Left spring; 5. Left guide pin; 6. Lower die; 7. Lower template; 8. Cylindrical pin; 9. Hexagon socket screw with cylindrical head; 10. Right guide pin; 11. Right spring; 12. Right bushing; 13. Punch. DETAILED DESCRIPTION

[0022] The following is a detailed explanation of a punching point pressure-receiving device for a cylindrical surface of a shaft part provided by the present invention in conjunction with the accompanying drawings.

[0023] The utility model provides a punching and pressing device for cylindrical surfaces of shaft parts, such as Figures 1-3As shown, it includes: upper template 1, left bushing 2, upper die 3, left spring 4, left guide post 5, lower die 6, lower template 7, cylindrical pin 8, cylindrical head hexagon socket screw 9, right guide post 10, right spring 11, right bushing 12, punch 13; wherein,

[0024] The left guide column 5 and the upper mold 3 are connected by a left bushing 2 (such as Figure 1 As shown in FIG, since the left bushing 2 is processed by grinding, the inner hole precision is high. This method can make the left guide pin 5 and the upper mold 3 slide smoothly without sticking. If it is worn during use and the precision requirement is not met, only the left bushing 2 can be replaced. This structural design has high precision, flexible use, and is also convenient for subsequent maintenance of the device.

[0025] The upper mold 3 and lower mold 6 components are connected by a left guide post 5, a right guide post 10, a left spring 4, and a right spring 11 (as shown in FIG. Figure 1 The design is that the spring can provide stable support and reset force, relying on the elastic force of the spring to support the opening of the upper and lower mold assemblies, which facilitates the installation and removal of the punching parts. This structural design is simple to operate, and one person can complete the punching and pressing work of the components;

[0026] The cylindrical hole (such as Figure 1 It is used for positioning and clamping cylindrical components to prevent them from rotating and deflecting in the circumferential direction during the punching process, and to prevent shaft components from deforming due to stress, which would not meet the requirements of the drawing.

[0027] The punch 13 adopts 6 (such as Figure 3 (as shown), it is possible to punch three points simultaneously, both top and bottom. This structural design ensures uniform distribution of punch points, consistent spacing and depth between punch points, and improves product quality and production efficiency. This method also allows for the use of more punches to achieve more punching requirements. The split punch facilitates subsequent maintenance.

[0028] The left guide post 5 and the right guide post 10 (as Figure 1 The different diameters of the two guide pins (shown) are designed to prevent the upper and lower molds from being installed upside down during use. By designing the two guide pins to have different diameters, this error can be effectively avoided, ensuring the correct assembly and use of the device.

[0029] like Figures 1-3 As shown, a punching and pressing device for the cylindrical surface of shaft parts includes: an upper template 1, a left bushing 2, an upper die 3, a left spring 4, a left guide post 5, a lower die 6, a lower template 7, a cylindrical pin 8, a cylindrical head hexagon socket screw 9, a right guide post 10, a right spring 11, a right bushing 12, and a punch 13.

[0030] Among them, when the upper mold 3 and the lower mold 6 are supported by the left spring 4, the left guide column 5, the right guide column 10, and the right spring 11, that is, the upper and lower mold assemblies are in the open state, the cylindrical components of the required punching points are placed in the cylindrical holes of the upper and lower molds, and the upper template 1 and the upper mold 3 are pressed downward by a press so that they are subjected to a certain pressure to complete the upper and lower punching of 6 points at the same time. After completion, the press is operated to return to the initial position. Supported by the rebound force of the left spring 4 and the right spring 11, the upper mold and the lower mold assemblies are separated, and the cylindrical components of the required punching points are rotated 90°, and the punching point pressure device is used again to punch the points. Repeat the operation to achieve the requirement of punching 12 points on the circumferential surface of the cylindrical component. The depth, position and spacing between the punching points are consistent, and the component pull-off test is qualified after the punching point pressure is received.

Claims

1. A punching and pressure-receiving device for cylindrical surfaces of shaft parts, characterized in that: include: Upper template (1), upper die (3), guide post, lower die (6), lower template (7), bushing, punch (13); The upper mold (3) is installed under the upper template (1), and the lower mold (6) is installed on the lower template (7); a semi-cylindrical cavity is opened in the middle of the mold surface of the upper mold (3) and the lower mold (6), and the two form a cylindrical cavity; the bottom of the semi-cylindrical cavity is provided with a punch avoidance hole along the height direction of the device, and the punch is installed in the punch avoidance hole, and the punch is used to punch the parts in the cavity; the lower mold (6) has mounting holes along the height direction of the device on both sides of the cavity, and the lower ends of the guide pillars are installed in the mounting holes; the upper mold (3) has guide holes corresponding to the positions of the mounting holes on both sides of the cavity, and bushings are installed in the guide holes; when the mold is closed, the upper ends of the guide pillars extend into the bushings.

2. The device according to claim 1, characterized in that Guide pin outer sleeve spring.

3. The device according to claim 1, characterized in that The upper die (3) is mounted on the upper die plate (1) via a cylindrical pin (8) and a cylindrical head hexagon socket screw (9), and the lower die (6) is also mounted on the lower die plate (7) via a cylindrical pin (8) and a cylindrical head hexagon socket screw (9).

4. The device according to claim 1, characterized in that The guide post is a stepped cylindrical structure, the small end of the guide post is interference fit with the mounting hole, and the large end is sliding fit with the guide hole.

5. The device according to claim 1, characterized in that The punch (13) includes two groups, upper and lower, each group consisting of three punching needles, and one mold closing can produce 6 punching points.

6. The device according to claim 5, characterized in that Punching 12 points on a part requires two mold closings. Before the second mold closing, the part needs to be rotated 90 degrees along its circumference.

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