A manual punching device for spherical workpieces

Abstract

A kind of manual punching device of spherical workpiece, including base, and punching platform, the base is connected with vertically down-pressing punching rod, punching platform includes mobile base, mobile base is connected with deflection base, deflection base is connected with bearing platform, bearing platform is used to support fixed workpiece and has empty area, deflection base can drive bearing platform deflection, and the axis of punching rod passes through the deflection center of deflection base.Utilize this manual punching device, using the deflection base that can be deflected drives bearing platform deflection, can accurately position spherical workpiece, so that the punching path after vertical punching of punching rod can be perpendicular to the tangent of spherical surface of spherical workpiece, ensure that hole forming meets process requirements.

Description

Technical Field

[0001] This utility model relates to the field of metal stamping and punching equipment, specifically a manual punching device for spherical workpieces. Background Technology

[0002] The spinneret is a crucial component in spinning equipment, used in the field of spinning technology. Its function is to transform viscous polymer melts or solutions into fine streams with specific cross-sectional shapes through micropores, which then solidify into filaments through a solidification medium such as air or a solidification bath. Some spinneret workpieces have spherical surfaces, requiring the hole axis to extend perpendicularly to the tangent of the spherical surface. Under this process requirement, the existing punching device's adjustment and positioning cannot meet the requirements, necessitating targeted improvements.

[0003] A search revealed existing technical documents on manual or automatic punching devices. For example, publication number "CN219378646U" entitled "A Novel Spherical Punching Die" discloses a novel spherical punching die. The base has a positioning post at the center of its upper surface, and multiple forming bottom dies are evenly distributed around the positioning post at a first predetermined distance. A sliding block is provided, with a groove inside the sliding block. A sliding push block is slidably installed within the groove. A slot is provided at the bottom of the sliding block, and a through hole is provided on the sliding push block corresponding to the slot. A forming punch is provided at the end of the sliding push block along the sliding direction. The forming punch of each sliding push block slides towards the workpiece placed on the hemispherical protrusion, with the punch aimed at the workpiece. The upper die has an upper die base, and multiple stamping rods are evenly distributed around the center of the upper die base at a second predetermined distance. Each stamping rod is tilted outward at a predetermined angle and interposed with the through hole. The diameter of the stamping rod is smaller than the diameter of the slot. The stamping rod passes through the through hole and inserts into the slot, which is an elongated clearance slot. Although the existing technical solution can punch holes in spherical workpieces, it has a complex structure and operation, and the design of multiple punching rods is not suitable for micro-hole punching. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a manual punching device for spherical workpieces, including a base and a punching platform. A punching rod that can be pressed down vertically is connected to the base. The punching platform includes a movable base, a deflection base is connected to the movable base, and a support platform is connected to the deflection base. The support platform is used to support and fix the workpiece and has a clearance area. The deflection base can drive the support platform to deflect. The axis of the punching rod passes through the deflection center of the deflection base.

[0005] Furthermore, the movable base can move laterally, and its direction of movement is perpendicular to the deflection plane of the deflection base.

[0006] Furthermore, the deflection base includes an arc-shaped base and an arc-shaped swing seat, which are driven by a gear and rack meshing. A deflection adjustment handwheel is also connected to the arc-shaped base, which can drive the gear and rack meshing and drive the arc-shaped swing seat to deflect.

[0007] Furthermore, a rotating seat is connected above the arc-shaped swing seat, and a bearing platform is connected to the rotating seat. The rotating seat is connected to a rotary adjustment handwheel via a synchronous belt.

[0008] Furthermore, the base includes guide posts and crossbeams that are perpendicularly connected to each other, and a punching rod is perpendicularly connected to the crossbeam. A pressing unit is also provided on the crossbeam, which can drive the punching rod to move vertically downward.

[0009] Furthermore, the pressing unit includes a pressing rod with one end hinged to the crossbeam, a punching rod that passes through the crossbeam and extends its top end out of the upper surface of the crossbeam, and the pressing rod can drive the punching rod to move vertically downward when it is pressed down.

[0010] Furthermore, the punching rod is connected to the crossbeam by a spring, and the pressing rod can contact the top of the punching rod when it is pressed down.

[0011] Furthermore, one end of the crossbeam is also connected to an adjustable limiting rod, which can adjust the length of the protrusion from the upper surface of the crossbeam to limit the downward stroke of the pressing rod.

[0012] Furthermore, the crossbeam is vertically connected to the guide column via a lifting screw, and the top of the lifting screw is connected to a lifting adjustment handwheel.

[0013] Furthermore, a fixed base is located below the movable base. The fixed base is connected to the movable base via a transverse guide rail. A transverse lead screw is provided on the fixed base, with one end of the transverse lead screw connected to the movable base and the other end connected to a transverse adjustment handwheel.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects: by using the manual punching device, the deflecting base can drive the bearing platform to deflect, which can accurately position the spherical workpiece, so that the punching path after the punching rod is vertically punched can be perpendicular to the tangent of the spherical surface of the workpiece, ensuring that the hole formation meets the process requirements. Attached Figure Description

[0015] Figure 1 : Schematic diagram of the overall structure of the punching device;

[0016] Figure 2 : Side view of the punching device. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-2 As shown. A manual punching device for spherical workpieces includes a base 1 and a punching platform 2. A punching rod 11 that can be pressed vertically is connected to the base 1. The punching platform 2 includes a movable base 21, and a deflection base 26 is connected to the movable base 21. A support platform 22 is rotatably connected to the deflection base 26. The support platform 22 is used to support and fix the workpiece and has a clearance area. The deflection base 26 can drive the support platform 22 to deflect. The axis of the punching rod 11 passes through the deflection center R of the deflection base 26.

[0019] In this embodiment, after the spherical workpiece is fixed to the support platform 22, its deflection position can be adjusted by utilizing the arc surface deflection of the deflection base 26. Since the deflection center R of the deflection arc surface of the deflection base 26 coincides with the axis of the punching rod 11, the vertically pressing punching rod 11 can always punch along the radial path of the spherical workpiece, regardless of the angle to which the spherical workpiece is deflected. This ensures that the hole axis after drilling is perpendicular to the tangent on the surface of the spherical workpiece. When the deflection base 26 is in its initial position, the deflection path can be adjusted by rotating the support platform 22, thereby enabling the punching of multiple annularly distributed holes on the spherical workpiece. It should be noted that the rotation axis of the support platform 22 is vertical, that is, parallel to the punching rod 11.

[0020] In a more preferred embodiment, the movable base 21 can move laterally, and its direction of movement is perpendicular to the deflection plane of the deflection base 26. Since the distribution of some holes on the spherical surface is not strictly radially distributed according to the center of the spherical workpiece, the adjustment direction of the movable base 21 has been extended and improved by allowing for lateral movement. When punching these holes, the movable base 21 can be moved laterally first, and then the deflection base 26 can be adjusted according to the hole position to determine the workpiece position before punching. Because the direction of movement of the movable base 21 is perpendicular to the deflection plane of the deflection base 26, the punching path of the punching rod 11 pressing vertically downwards can still pass through the center of the arc surface of the spherical workpiece, regardless of the angle to which the deflection base 26 is adjusted.

[0021] In a more preferred embodiment, the deflection base 26 includes an arc-shaped base 261 and an arc-shaped swing seat 262. The arc-shaped base 261 and the arc-shaped swing seat 262 are driven by a gear and rack meshing transmission. A deflection adjustment handwheel 263 is also connected to the arc-shaped base 261. The deflection adjustment handwheel 263 can drive the gear and rack meshing and drive the arc-shaped swing seat 262 to deflect. The gear and rack meshing transmission is precise and can lock the position of the arc-shaped swing seat 262 to prevent it from shaking and affecting the punching accuracy.

[0022] In a more preferred embodiment, a rotating seat 23 is connected above the arc-shaped swing base 262, and a carrying platform 22 is connected to the rotating seat 23. The rotating seat 23 is connected to a rotary adjustment handwheel 25 via a synchronous belt 24. In this embodiment, the position of the workpiece can be adjusted by rotating the adjustment handwheel 25. When the holes are arranged in a ring, after the workpiece is positioned laterally, adjusting the rotary adjustment handwheel 25 drives the workpiece to rotate, thus completing the punching of the holes.

[0023] In a more preferred embodiment, the base 1 includes guide posts 12 and crossbeams 13 that are perpendicularly connected to each other. The punching rod 11 is perpendicularly connected to the crossbeam 13. The crossbeam 13 is also provided with a pressing unit, which can drive the punching rod 11 to move vertically downward.

[0024] The pressing unit is mainly used to apply vertical downward pressure to the punching rod 11. The pressing unit is an independently operable force-applying component. After the operator adjusts the position of the workpiece, he can operate the pressing unit to drive the punching rod 11 to move vertically downward to complete the punching.

[0025] In a more preferred embodiment, the pressing unit includes a pressing rod 14 hinged to the crossbeam 13 at one end, and a punching rod 11 passing through the crossbeam 13 with its top end extending beyond the upper surface of the crossbeam 13. When the pressing rod 14 is pressed down, it can drive the punching rod 11 to move vertically downward. This embodiment provides a possible implementation of the pressing unit. Specifically, the pressing rod 14 is connected to the crossbeam 13 through a hinged seat, and its other end is connected to an operating handle. When the operating handle is pressed down, the pressing rod 14 can drive the punching rod 11 to move vertically downward to complete the punching. The punching rod 11 and the pressing rod 14 can also be connected by a hinge. Under the guiding action of the punching rod 11 passing through the crossbeam 13, pressing down and lifting the pressing rod 14 can drive the punching rod 11 to move vertically downward reciprocally.

[0026] In a more preferred embodiment, the punching rod 11 is connected to the crossbeam 13 via a spring, and the pressing rod 14 can contact the top end of the punching rod 11 when it is pressed down. In this embodiment, the pressing rod 14 and the punching rod 11 are not directly connected. When the pressing rod 14 is pressed down, contact with the top end of the punching rod 11 can drive the punching rod 11 to move vertically downward. After the pressing rod 14 is lifted, the punching rod 11 springs back away from the workpiece surface under the action of the spring to complete the punching.

[0027] In a more preferred embodiment, one end of the crossbeam 13 is also connected to an adjustable limiting rod 15. The adjustable limiting rod 15 can adjust the length protruding from the upper surface of the crossbeam 13 to limit the downward stroke of the pressing rod 14. In this embodiment, although the supporting platform 22 has a clearance area, the height of this clearance area is limited. When the punching rod 11 punches vertically downward through the surface of the workpiece, if its stroke is not restricted, it is very likely to touch the surface of the supporting platform 22, causing damage to the punching rod 11. To avoid this problem, the adjustable limiting rod 15 is used to limit the downward stroke of the pressing rod 14, thereby limiting the punching stroke of the punching rod 11. In this embodiment, the adjustable limiting rod 15 uses a screw that passes through the crossbeam 13, and the limiting stroke can be easily adjusted using a nut.

[0028] In a more preferred embodiment, the crossbeam 13 is vertically connected to the guide post 12 via a lifting screw 16, and the top of the lifting screw 16 is connected to a lifting adjustment handwheel 18. In this embodiment, the crossbeam 13 is designed to be height-adjustable. Compared to a fixed height, the height-adjustable crossbeam 13 allows for a certain adjustable range of the punching stroke, making it suitable for punching workpieces of different heights. The operator can precisely adjust the height of the crossbeam 13 using the lifting adjustment handwheel 18.

[0029] In a more preferred embodiment, a fixed base 3 is located below the movable base 21. The fixed base is connected to the movable base 21 via a transverse guide rail 31. The top of the movable base 21 is connected to the support platform 22 via a rotating seat 23. The rotating seat 23 is connected to a rotary adjustment handwheel 25 via a synchronous belt 24. In this embodiment, the position of the workpiece can be adjusted by rotating the adjustment handwheel 25. When the holes are arranged in a ring, after the workpiece is positioned laterally, adjusting the rotary adjustment handwheel 25 drives the workpiece to rotate, thus completing the punching of the holes.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manual punching device for spherical workpieces, characterized in that, The device includes a base (1) and a punching platform (2). A punching rod (11) that can be pressed down vertically is connected to the base (1). The punching platform (2) includes a movable base (21). A deflection base (26) is connected to the movable base (21). A bearing platform (22) is rotatably connected to the deflection base (26). The bearing platform (22) is used to support and fix the workpiece and has a clearance area. The deflection base (26) can drive the bearing platform (22) to deflect. The axis of the punching rod (11) passes through the deflection center (R) of the deflection base (26).

2. The manual punching device for spherical workpieces as described in claim 1, characterized in that, The movable base (21) can move laterally, and its direction of movement is perpendicular to the deflection plane of the deflection base (26).

3. The manual punching device for spherical workpieces as described in claim 2, characterized in that, The deflection base (26) includes an arc-shaped base (261) and an arc-shaped swing seat (262). The arc-shaped base (261) and the arc-shaped swing seat (262) are driven by gear and rack meshing. The arc-shaped base (261) is also connected to a deflection adjustment handwheel (263). The deflection adjustment handwheel (263) can drive the gear and rack to mesh and drive the arc-shaped swing seat (262) to deflect.

4. The manual punching device for spherical workpieces as described in claim 3, characterized in that, A rotating seat (23) is connected above the arc-shaped swing seat (262), and a bearing platform (22) is connected to the rotating seat (23). The rotating seat (23) is connected to a rotating adjustment handwheel (25) via a synchronous belt (24).

5. The manual punching device for spherical workpieces as described in any one of claims 1 to 4, characterized in that, The base (1) includes guide posts (12) and crossbeams (13) that are perpendicularly connected to each other. The punching rod (11) is perpendicularly connected to the crossbeam (13). A pressing unit is also provided on the crossbeam (13), which can drive the punching rod (11) to move vertically downward.

6. The manual punching device for spherical workpieces as described in claim 5, characterized in that, The pressing unit includes a pressing rod (14) with one end hinged to the crossbeam (13). The punch rod (11) passes through the crossbeam (13) and its top end extends out of the upper surface of the crossbeam (13). When the pressing rod (14) presses down, it can drive the punch rod (11) to move vertically downward.

7. The manual punching device as described in claim 6, characterized in that, The punching rod (11) is connected to the crossbeam (13) by a spring, and the pressing rod (14) can abut against the top of the punching rod (11) when it is pressed down.

8. The manual punching device as described in claim 7, characterized in that, One end of the crossbeam (13) is also connected to an adjustable limiting rod (15), which can adjust the length of the protrusion on the upper surface of the crossbeam (13) to limit the downward stroke of the pressing rod (14).

9. The manual punching device as described in claim 8, characterized in that, The crossbeam (13) is vertically connected to the guide column (12) via the lifting screw (16), and the top of the lifting screw (16) is connected to the lifting adjustment handwheel (18).

10. The manual punching device as described in claim 9, characterized in that, Below the movable base (21) is a fixed base (3). The fixed base is connected to the movable base (21) via a transverse guide rail (31). The fixed base (3) is provided with a transverse lead screw (32). One end of the transverse lead screw (32) is connected to the movable base (21), and the other end is connected to a transverse adjustment handwheel (33).

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