A sheet metal positioning pin in hot stamping production

Abstract

The utility model discloses a sheet metal locating pin in hot stamping forming production, including a locating pin base; a connecting mechanism is fixedly installed on one end of the locating pin base, and the connecting mechanism includes a sheet metal mold entry guide section, a connecting groove and a boss; one end of the locating pin base is fixedly installed with the sheet metal mold entry guide section through a thread; the utility model has a connecting mechanism fixedly installed on one end of the locating pin base, and a person rotates the sheet metal mold entry guide section so that the connecting groove inside it is fixedly installed on the outside of the connecting rod through a threaded structure. At this time, the boss at one end of the sheet metal mold entry guide section will rotate inside the groove, and then the person can install the corresponding sheet metal mold entry guide section on one side of the locating pin base according to the usage situation for use. When the sheet metal mold entry guide section is damaged, the person can also use this method to replace it conveniently, thereby not causing waste of resources, which is beneficial to the use of the person.

Description

Technical Field

[0001] The utility model relates to the technical field of hot stamping dies, in particular to a plate positioning pin in hot stamping forming production. Background Art

[0002] Hot stamping is to heat the steel sheet blanks until they are ductile, and then stamp them into shape. When the high-temperature blanks are taken out of the heating furnace by the clamping device and placed in the corresponding mold cavity position, they fall into the mold cavity surface after being accurately positioned and guided by the locating pins installed on the mold, so that the heated blanks can fall into the mold cavity quickly and accurately. It can be seen here that the sheet metal locating pins play a very important role in the mold stamping production process, so there are different requirements for the shape and accuracy of each position of the locating pins. Since the sheet metal locating pins are used for hot stamping automotive parts, the ups and downs of the surface have relatively high requirements for all aspects of the locating pins. General locating pins are prone to breakage, being pulled out of the mold during production, the rods being bent, and being scratched with deep lines. If they fall on the mold surface, the mold will be damaged and unable to produce normally, resulting in serious problems such as batch scrapping of parts.

[0003] The positioning pin is generally an integral structure. When the positioning pin is deformed or partially damaged, it is impossible to partially replace it. When the positioning pin is replaced as a whole, it will cause a waste of resources, which is not conducive to the use of personnel;

[0004] In addition, when personnel use locating pins for installation, they generally insert the locating pins into the mold and then fix them by knocking. When there is a certain gap between the locating pins and the through hole in the middle of the mold, it will be difficult for personnel to fix the locating pins, which will affect personnel's use. Utility Model Content

[0005] The purpose of the utility model is to provide a sheet metal locating pin for hot stamping production, so as to solve the problem proposed in the above background technology that the locating pin is generally an integral structure, and when the locating pin is deformed or partially damaged, it cannot be partially replaced. When the locating pin is replaced as a whole, it will cause a waste of resources, which is not conducive to personnel's use.

[0006] The utility model provides the following technical solution: a sheet metal positioning pin in hot stamping production, comprising a positioning pin base; a connecting mechanism is fixedly installed at one end of the positioning pin base, and an auxiliary mechanism is fixedly installed on the outer side of the connecting mechanism;

[0007] The connection mechanism includes a sheet metal mold entry guide section, a connection groove and a boss, one end of the positioning pin base is fixedly installed with the sheet metal mold entry guide section by a thread, the interior of the sheet metal mold entry guide section is provided with a connection groove, and one end of the sheet metal mold entry guide section close to the positioning pin base is provided with a boss;

[0008] The auxiliary mechanism comprises a fixing groove and an elastic ring. The fixing groove is arranged on the outer side of the sheet material entering the mold guide section, and the elastic ring is clamped and installed inside the fixing groove.

[0009] Preferably, an anti-slip fastening screw thread is provided inside the positioning pin base, and the anti-slip fastening screw thread is located at a central position inside the positioning pin base.

[0010] Preferably, an anti-dropout limiting slot is provided on the side of the positioning pin base, and the anti-dropout limiting slot is rectangular.

[0011] Preferably, a groove is provided inside the positioning pin base close to one end of the connecting mechanism, and the inside of the groove is engaged with the connecting boss.

[0012] Preferably, a connecting rod is fixedly mounted on one end of the positioning pin base close to the connecting mechanism, and the connecting rod is located inside the connecting groove.

[0013] Preferably, a mounting position is fixedly installed on one side of the positioning pin base, and a sheet metal precision positioning section is fixedly installed on the outer side of the sheet metal mold entry guide section.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model has a connecting mechanism fixedly installed at one end of the locating pin base. The personnel rotates the sheet metal mold entry guide section so that the connecting groove inside it is fixedly installed on the outside of the connecting rod through a threaded structure. At this time, the boss at one end of the sheet metal mold entry guide section will rotate inside the groove. Then, the personnel can install the corresponding sheet metal mold entry guide section on one side of the locating pin base for use according to the usage. When the sheet metal mold entry guide section is damaged, it is also convenient for the personnel to replace it in this way, so as not to cause waste of resources and thus facilitate the use of personnel.

[0016] 2. The utility model has an auxiliary mechanism fixedly installed on the outside of the connecting mechanism. When the personnel clamps the elastic ring inside the fixing groove, when the personnel inserts the sheet metal mold guide section into the internal opening of the mold for use, the friction force generated between the elastic ring and the inside of the mold opening can make it better fixed inside the mold, thereby not affecting the use of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front structural schematic diagram of the utility model;

[0018] Figure 2 It is a side structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of the front part of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the locally enlarged structure of A in the middle.

[0021] In the figure: 1. locating pin base; 101. anti-slip fastening screw thread; 102. anti-slip limit slot; 103. groove; 2. connecting mechanism; 201. sheet metal mold guide section; 202. connecting groove; 203. boss; 3. auxiliary mechanism; 301. fixing groove; 302. elastic ring; 4. connecting rod; 5. installation position; 501. sheet metal precision positioning section. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The technical solution of the utility model is further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments of the specification; Example

[0026] The present application provides a sheet metal locating pin in hot stamping production, comprising a locating pin base 1; a connecting mechanism 2 is fixedly installed at one end of the locating pin base 1, and an auxiliary mechanism 3 is fixedly installed on the outer side of the connecting mechanism 2;

[0027] The connecting mechanism 2 includes a sheet metal mold entry guide section 201, a connecting groove 202 and a boss 203. One end of the positioning pin base 1 is fixedly installed with the sheet metal mold entry guide section 201 by means of a thread. The sheet metal mold entry guide section 201 is provided with a connecting groove 202 inside. The sheet metal mold entry guide section 201 is provided with a boss 203 at one end close to the positioning pin base 1. The positioning pin base 1 is provided with a groove 103 inside the end close to the connecting mechanism 2. The inside of the groove 103 is engaged with the boss 203. The positioning pin base 1 is fixedly installed with a connecting rod 4 at one end close to the connecting mechanism 2. The connecting rod 4 is located inside the connecting groove 202.

[0028] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, before use, the personnel rotates the sheet material entering the mold guide section 201 so that the internal connecting groove 202 is fixedly installed on the outer side of the connecting rod 4 through a threaded structure. At this time, the boss 203 at one end of the sheet material entering the mold guide section 201 will rotate inside the groove 103. Then the personnel can install the corresponding sheet material entering the mold guide section 201 on one side of the positioning pin base 1 for use according to the usage. The sheet material entering the mold guide section 201 can digest the position error generated by the heating sheet material during the transportation process so that it can enter the mold smoothly. When the sheet material entering the mold guide section 201 is damaged, it can also be convenient for personnel to replace it in this way, so as not to cause waste of resources, which is beneficial to personnel's use.

[0029] Furthermore, an anti-slip fastening screw thread 101 is provided inside the positioning pin base 1, and the anti-slip fastening screw thread 101 is located at the central position inside the positioning pin base 1. An anti-slip limit card groove 102 is provided on the side of the positioning pin base 1, and the anti-slip limit card groove 102 is rectangular;

[0030] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, the anti-slip limit slot 102 prevents the device from being locked and pulled out of the mold after the sheet is formed, and prevents it from rotating together with the screw when the screw is tightened, while the anti-slip tightening screw thread 101 achieves double protection for the fixing effect of the device.

[0031] Furthermore, a mounting position 5 is fixedly installed on one side of the positioning pin base 1, and a sheet metal precision positioning section 501 is fixedly installed on the outer side of the sheet metal mold entry guide section 201;

[0032] Specifically, Figure 1 , Figure 2 and Figure 3As shown, the mounting position 5 ensures the theoretical design accuracy of the plate device and the actual processing accuracy on site, so that the actual forming effect of the product is as close as possible to the theoretical effect, and the plate positioning section 501 prevents the plate from swinging too much to ensure the accuracy of the mold entry position.

[0033] Different from the first embodiment, the utility model also provides a second embodiment, which is used to solve the problem that when the above-mentioned personnel use the positioning pin for installation, the positioning pin is generally inserted into the mold and then fixed by knocking. When there is a certain gap between the positioning pin and the through hole in the middle of the mold, it will be difficult for the personnel to fix the positioning pin for use, which will affect the use of the personnel. The present application discloses a sheet metal positioning pin in hot stamping production, the auxiliary mechanism 3 includes a fixing groove 301 and an elastic ring 302, the outer side of the sheet metal mold guide section 201 is provided with a fixing groove 301, and the inner side of the fixing groove 301 is clamped and installed with an elastic ring 302;

[0034] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, personnel clamp the elastic ring 302 inside the fixing groove 301. When personnel insert the sheet metal feed guide section 201 into the internal opening of the mold for use, the friction force generated between the elastic ring 302 and the inside of the mold opening can better fix it inside the mold, thereby not affecting the use of personnel.

[0035] Working principle: personnel rotate the sheet metal mold entry guide section 201 so that the internal connecting groove 202 is fixedly installed on the outer side of the connecting rod 4 through a threaded structure. At this time, the boss 203 at one end of the sheet metal mold entry guide section 201 will rotate inside the groove 103. Then personnel can install the corresponding sheet metal mold entry guide section 201 on one side of the positioning pin base 1 for use according to the usage. The sheet metal mold entry guide section 201 digests and heats the position error generated by the sheet metal during the transportation process so that it can enter the mold smoothly. The anti-slip limit slot 102 prevents the sheet metal from locking the device and being pulled out of the mold after forming. At the same time, it prevents it from rotating together with the screw when the screw is tightened, and the anti-slip tightening screw thread 101 realizes double protection for the fixing effect of the device.

[0036] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A sheet metal locating pin in hot stamping production, comprising a locating pin base (1); characterized in that: A connecting mechanism (2) is fixedly mounted on one end of the positioning pin base (1), and an auxiliary mechanism (3) is fixedly mounted on the outer side of the connecting mechanism (2); The connection mechanism (2) comprises a sheet metal mold entry guide section (201), a connection groove (202) and a boss (203); one end of the positioning pin base (1) is fixedly mounted with the sheet metal mold entry guide section (201) by means of a thread; the connecting groove (202) is provided inside the sheet metal mold entry guide section (201); and one end of the sheet metal mold entry guide section (201) close to the positioning pin base (1) is provided with a boss (203); The auxiliary mechanism (3) comprises a fixing groove (301) and an elastic ring (302); the fixing groove (301) is provided on the outside of the sheet metal mold entry guide section (201); and the elastic ring (302) is mounted in engagement with the inside of the fixing groove (301).

2. The sheet metal positioning pin in hot stamping production according to claim 1, characterized in that: An anti-slip fastening screw thread (101) is provided inside the positioning pin base (1), and the anti-slip fastening screw thread (101) is located at a central position inside the positioning pin base (1).

3. The sheet metal positioning pin in hot stamping production according to claim 1, characterized in that: An anti-dropout limiting slot (102) is provided on the side of the positioning pin base (1), and the anti-dropout limiting slot (102) is rectangular.

4. The sheet metal positioning pin in hot stamping production according to claim 1, characterized in that: A groove (103) is provided inside the positioning pin base (1) at one end close to the connection mechanism (2), and the inside of the groove (103) is engaged with the connection boss (203).

5. The sheet metal positioning pin in hot stamping production according to claim 1, characterized in that: A connecting rod (4) is fixedly mounted on one end of the positioning pin base (1) close to the connecting mechanism (2), and the connecting rod (4) is located inside the connecting groove (202).

6. The sheet metal positioning pin in hot stamping production according to claim 1, characterized in that: A mounting position (5) is fixedly mounted on one side of the positioning pin base (1), and a sheet metal precision positioning section (501) is fixedly mounted on the outer side of the sheet metal mold entry guide section (201).

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