General punching die for double-sided porous chamfer forming

Abstract

The utility model belongs to the technical field of stamping dies, and particularly relates to a common stamping die for forming a double-sided porous chamfer. Through reasonable arrangement of the upper die holder, the lower die holder, the upper base plate, the lower base plate, the upper die plate, the lower die plate, the part positioning device and the multiple sets of upper chamfering punches and lower punches, chamfering forming machining can be conducted on the front faces and the back faces of multiple installation holes in a part at the same time, then the machining forming efficiency of the installation holes in the part is greatly improved, and labor cost is reduced; the double-sided chamfering device is compact in overall structure, convenient to operate, capable of being repeatedly used, capable of achieving double-sided chamfering machining of a plurality of mounting holes in a part only through one-time punching, balanced in two-sided stress and high in machining precision, machining cost is saved, production efficiency and product quality are improved, and high practicability is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies, and in particular relates to a general stamping die for double-sided multi-hole chamfering forming. Background Art

[0002] Generally, the bolt installation holes of the sealing cover need to be pre-chamfered on both sides before tapping to reduce burrs and iron filings caused by tapping. The processing equipment in the prior art is a bench drill, which is used to manually chamfer the bolt installation holes; when there are multiple small holes on a part that need double-sided chamfering, taking the sealing cover with 5 installation holes as an example, the prior art chamfers each small hole in turn, then turns it over, and then chamfers it in turn. Each part needs to be chamfered 10 times in total, and the chamfering forming efficiency is low, the labor cost is high, and there is a risk of missing processing. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, a general punching die for double-sided multi-hole chamfering forming is provided, which can greatly improve the processing efficiency of double-sided chamfering forming of mounting holes on parts, and has a compact overall structure, is easy to use, and has low labor costs.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A general punching die for double-sided multi-hole chamfering forming, comprising an upper die base 1 installed at the bottom of a punch press spindle and a lower die base 9 fixedly connected to a worktable, wherein the bottom of the upper die base 1 is connected to an upper mold plate 3 via an upper pad 2, and the top of the lower die base 9 is connected to a lower mold plate 7 via a lower pad 8, a plurality of upper chamfering punches 4 are provided at the bottom of the upper mold plate 3, a plurality of lower punches 6 corresponding to the upper chamfering punches 4 are provided at the top of the lower mold plate 7, and the number and installation positions of the upper chamfering punches 4 and the lower punches 6 are adapted to the number and positions of holes to be processed on the surface of a part, and a part positioning device is installed above the lower die base 9.

[0006] Furthermore, the upper chamfering punch 4 and the lower punch 6 are both composed of a connecting portion and a chamfering portion, one end of the chamfering portion is connected to the connecting portion, and the other end is provided with a chamfering head.

[0007] Furthermore, the size and shape of the chamfering heads of the upper chamfering punch 4 and the lower chamfering punch 6 are adapted to the size and shape of the hole to be processed on the surface of the part.

[0008] Furthermore, the length ratio of the connecting portion to the chamfered portion is 1:4 to 1:6.

[0009] Furthermore, the upper mold plate 3 is fixedly connected to the bottom of the upper mold base 1 by passing bolts through the upper pad 2; the lower mold plate 7 is fixedly connected to the top of the lower mold base 9 by passing bolts through the lower pad 8.

[0010] Furthermore, a limiting column adapted to the thickness of the part to be processed is provided between the upper template 3 and the lower template 7 .

[0011] Furthermore, the part positioning device includes a part positioning pin 5 provided on the upper surface of the lower template 7 .

[0012] Furthermore, guide pins are provided between the upper mold plate 3 , the upper pad 2 and the upper mold base 1 .

[0013] Compared with the prior art, the utility model has the following main advantages:

[0014] 1. The utility model provides a general punching die for double-sided multi-hole chamfering. Through the reasonable arrangement of upper and lower die bases, upper and lower pads, upper and lower templates, part positioning devices and multiple groups of upper chamfering punches and lower punches, the front and back sides of multiple mounting holes on the parts can be chamfered at the same time, thereby greatly improving the processing efficiency of the mounting holes on the parts and reducing labor costs;

[0015] 2. The utility model has a compact overall structure, is easy to operate, can be repeatedly used, and only requires one stamping to achieve double-sided chamfering of multiple mounting holes on parts. The forces on both sides are balanced and the processing accuracy is high. It not only saves processing costs, but also improves production efficiency and product quality, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the general punching die in the embodiment of the utility model.

[0017] In the figure: 1. upper die seat; 2. upper pad; 3. upper template; 4. upper chamfering punch; 5. part locating pin; 6. lower punch; 7. lower template; 8. lower pad; 9. lower die seat. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the application are usually placed when in use. They are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0022] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0023] Embodiment 1: This embodiment provides a general punching die for double-sided multi-hole chamfering forming, such as Figure 1 As shown, it mainly includes: an upper die base 1 installed at the bottom of the punch spindle and a lower die base 9 fixedly connected to the work table;

[0024] Among them, the bottom of the upper die base 1 is connected to the upper template 3 through the upper pad 2, the top of the lower die base 9 is connected to the lower template 7 through the lower pad 8, the bottom of the upper template 3 is provided with a plurality of upper chamfering punches 4, the top of the lower template 7 is provided with a plurality of lower punches 6 corresponding to the upper chamfering punches 4, and the number and installation positions of the upper chamfering punches 4 and the lower punches 6 are adapted to the number and positions of the holes to be processed on the surface of the part, and a part positioning device is installed above the lower die base 9.

[0025] Furthermore, the upper chamfering punch 4 and the lower punch 6 are both composed of a connecting portion and a chamfering portion, one end of the chamfering portion is connected to the connecting portion, and the other end is provided with a chamfering head.

[0026] Furthermore, the size and shape of the chamfering heads of the upper chamfering punch 4 and the lower chamfering punch 6 are adapted to the size and shape of the hole to be processed on the surface of the part.

[0027] Furthermore, the length ratio of the connecting portion to the chamfered portion is 1:4 to 1:6.

[0028] Furthermore, the upper mold plate 3 is fixedly connected to the bottom of the upper mold base 1 by passing bolts through the upper pad 2; the lower mold plate 7 is fixedly connected to the top of the lower mold base 9 by passing bolts through the lower pad 8.

[0029] Furthermore, a limiting column adapted to the thickness of the part to be processed is provided between the upper template 3 and the lower template 7 .

[0030] Furthermore, the part positioning device includes a part positioning pin 5 provided on the upper surface of the lower template 7 .

[0031] Furthermore, guide pins are provided between the upper mold plate 3 , the upper pad 2 and the upper mold base 1 .

[0032] Embodiment 2: This embodiment provides a general punching die for double-sided multi-hole chamfering, including two parts: an upper die and an lower die. The upper die is composed of an upper die seat, an upper pad, an upper die plate, and a punch. An upper pad is installed on the upper die seat to connect the upper die plate, and an upper chamfering punch is installed on the upper die plate. The lower die is composed of a lower die seat, a lower pad, a lower die plate, and a punch. A lower pad is installed under the lower die seat to connect the lower die plate, and a lower chamfering punch is installed on the lower die plate. In addition, the lower die is also equipped with a part positioning device for placing and positioning the workpiece to be processed.

[0033] When chamfering, first fix the upper die seat 1 on the punch press spindle, fix the lower die seat 9 on the work surface, and place the part to be processed on the positioning pin 5. Start the punch press, the upper die seat moves downward driven by the equipment spindle, and the upper chamfering punch moves downward accordingly. The upper and lower dies are closed, and multiple sets of upper and lower punches punch multiple mounting holes on the parts to complete double-sided chamfering. Then the spindle rises and the upper and lower dies are separated. This is a complete processing process, and then a reciprocating cycle is repeated.

[0034] Furthermore, all parts involved in this application that are not described in detail are the same as the prior art or are implemented using the prior art.

[0035] In summary:

[0036] 1. The utility model provides a general punching die for double-sided multi-hole chamfering. Through the reasonable arrangement of upper and lower die bases, upper and lower pads, upper and lower templates, part positioning devices and multiple groups of upper chamfering punches and lower punches, the front and back sides of multiple mounting holes on the parts can be chamfered at the same time, thereby greatly improving the processing efficiency of the mounting holes on the parts and reducing labor costs;

[0037] 2. The utility model has a compact overall structure, is easy to operate, can be repeatedly used, and only requires one stamping to achieve double-sided chamfering of multiple mounting holes on parts. The forces on both sides are balanced and the processing accuracy is high. It not only saves processing costs, but also improves production efficiency and product quality, and has strong practicality.

[0038] The above embodiments are only used to illustrate the design ideas and features of the utility model, and their purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly. The protection scope of the utility model is not limited to the above embodiments. Therefore, any equivalent changes or modifications made based on the principles and design ideas disclosed by the utility model are within the protection scope of the utility model.

Claims

1. A punching die for double-sided porous chamfering, characterized in that: The punch press comprises an upper die base (1) mounted on the bottom of a punch press spindle and a lower die base (9) fixedly connected to a work surface, wherein the bottom of the upper die base (1) is connected to an upper die plate (3) via an upper pad (2), and the top of the lower die base (9) is connected to a lower die plate (7) via a lower pad (8), a plurality of upper chamfering punches (4) are arranged at the bottom of the upper die plate (3), and a plurality of lower punches (6) corresponding to the upper chamfering punches (4) are arranged at the top of the lower die plate (7), and the number and installation positions of the upper chamfering punches (4) and the lower punches (6) are adapted to the number and positions of holes to be processed on a part surface, and a part positioning device is installed above the lower die base (9).

2. A general punching die for double-sided porous chamfering according to claim 1, characterized in that: The upper chamfering punch (4) and the lower punch (6) are both composed of a connecting portion and a chamfering portion, one end of the chamfering portion is connected to the connecting portion, and the other end is provided with a chamfering head.

3. A general punching die for double-sided porous chamfering according to claim 2, characterized in that: The size and shape of the chamfering heads of the upper chamfering punch (4) and the lower punch (6) are compatible with the size and shape of the hole to be processed on the surface of the part.

4. A general punching die for double-sided porous chamfering according to claim 2, characterized in that: The length ratio of the connecting portion to the chamfered portion is 1:4 to 1:

6.

5. The general punching die for double-sided porous chamfering according to claim 1, characterized in that: The upper mold plate (3) is fixedly connected to the bottom of the upper mold base (1) by passing bolts through the upper pad (2); the lower mold plate (7) is fixedly connected to the top of the lower mold base (9) by passing bolts through the lower pad (8).

6. The general punching die for double-sided porous chamfering according to claim 1, characterized in that: A limiting column adapted to the thickness of the part to be processed is provided between the upper template (3) and the lower template (7).

7. The general punching die for double-sided porous chamfering according to claim 1, characterized in that: The part positioning device comprises a part positioning pin (5) arranged on the upper surface of the lower template (7).

8. The punching die for double-sided porous chamfering according to claim 1, characterized in that: A guide pin is arranged between the upper mold plate (3), the upper pad (2) and the upper mold base (1).

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