Locking Structure of a Bidirectional Insertion Guide Plate

Abstract

The present invention discloses a locking structure for a bidirectional insertion guide plate, comprising: an assembly base body; two bidirectional insertion guide plates which are respectively located on both sides of the assembly base body, a guide plate positioning key is arranged between the bidirectional insertion guide plate and the assembly base body, and during the working process of the mold, the bidirectional insertion guide plate and the assembly base body are positioned by the guide plate positioning key; the bidirectional insertion guide plate and the assembly base body are further fixed by a plurality of first bolts; a locking plate which is arranged outside the assembly base body and the bidirectional insertion guide plate, and the locking plate is connected to the assembly base body and the bidirectional insertion guide plate by a plurality of second bolts. The locking structure of the bidirectional insertion guide plate of the present invention can extend the service life of the bidirectional guide plate and ensure the guiding accuracy, and at the same time improve the reliability of the fixing end screws, and reduce the costs generated by the later repair and debugging of the mold.

Description

Technical Field

[0001] The present invention relates to the field of cold stamping die design for automotive covering parts, and more specifically, to a locking structure for a bidirectional insertion guide plate. Background Art

[0002] In order to adapt to the development trend of the current industry, many enterprises have put forward the requirement of rapid product response development in order to ensure a relatively active position in the existing market competition. In terms of die design and manufacturing, it is required to shorten the die development cycle while ensuring the accuracy and lifespan of the die. Casting dies have the disadvantage of a long construction period; while steel plate dies, due to their characteristics of simple manufacturing, short production cycle, and local repairability, can thus fit in with the short, flat, and fast development strategy of enterprises. However, since steel plate dies are composed of multiple steel plates stacked together, how to ensure the accuracy of steel plate dies is an issue that die enterprises must consider.

[0003] Comparing common bidirectional guide plates on the existing market, most of them are simply fixed with screws. Since bidirectional guide plates are mostly installed on the middle moving parts of the die, compared with unidirectional guide plates installed on the upper and lower die bases, the forces generated by the bidirectional guide plates sliding with the upper and lower die bases are mainly borne by the screws at the fixed ends. After a period of use with this open slot type of fixing method, the installation surface of the assembly base is likely to expand outwards, making the guide plate unstable during the die working process, and having a certain impact on the lifespan and accuracy of the die.

[0004] Therefore, how to improve the locking mechanism of the existing bidirectional guide plate to overcome the above technical problems is a direction that those skilled in the art need to focus on researching. Summary of the Invention

[0005] For this reason, the purpose of the present invention is to propose a locking structure for a bidirectional insertion guide plate to avoid the risks existing in the guiding accuracy and service life of the existing bidirectional insertion guide plate, and its specific technical solution is as follows:

[0006] A locking structure for a bidirectional insertion guide plate, comprising:

[0007] An assembly base;

[0008] Bidirectional insertion guide plates, two of which are provided and are respectively located on both sides of the assembly base. A guide plate positioning key is arranged between the bidirectional insertion guide plates and the assembly base. During the die working process, the bidirectional insertion guide plates and the assembly base are positioned by the guide plate positioning key; the bidirectional insertion guide plates and the assembly base are also fixed by a plurality of first bolts;

[0009] A locking plate is provided outside the assembly base body and the two-way insertion guide plate, and the locking plate is connected to the assembly base body and the two-way insertion guide plate through a plurality of the second bolts.

[0010] By adopting the above technical solution, the present invention provides a locking structure with two-way guidance for a drawing die (steel plate type), specifically, a locking structure for a two-way insertion guide plate. The present invention provides a guide plate positioning key between the two-way insertion guide plate and the assembly base body, and the positioning is carried out by the guide plate positioning key during the working process of the die; a locking plate is further provided at the outer end of the assembly base body to connect the assembly base body and the two-way insertion guide plate at the same time, avoiding the tendency of the opening slot at the installation end to open outwards. The structure of the present invention can extend the service life of the two-way guide plate and ensure the guiding accuracy, and at the same time improve the reliability of the fixing end screws, reducing the costs generated by the later repair and debugging of the die.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows:

[0012] Preferably, both ends of the locking plate are designed in the form of snap structures, and an assembly base body clamping groove corresponding to the snap is provided on the assembly base body.

[0013] In other words, in addition to being fixedly connected by the second bolts between the locking plate and the assembly base body, it is further fixed through the tightly fitted snap and the assembly base body clamping groove.

[0014] Preferably, a guide plate key groove is provided on the two-way insertion guide plate, and an assembly base body key groove is provided on the assembly base body; one end of the guide plate positioning key is locked at the guide plate key groove, and the other end is in transitional fit with the assembly base body key groove.

[0015] Both ends of the guide plate positioning key are respectively fixed in the key grooves on the two-way insertion guide plate and the assembly base body, and one end is locked and the other end is in transitional fit, realizing the precise positioning between the two-way insertion guide plate and the assembly base body.

[0016] Preferably, a third bolt threaded through hole is provided on the guide plate positioning key, a third bolt threaded hole corresponding to the third bolt threaded through hole is provided in the guide plate key groove, and the guide plate positioning key is locked with the guide plate key groove through the third bolt threaded through hole, the third bolt threaded hole and a third bolt matching with the two holes.

[0017] The third bolt passes through the third bolt threaded through hole on the guide plate positioning key and is tightly screwed with the third bolt threaded hole in the guide plate key groove to lock the guide plate positioning key at the guide plate key groove.

[0018] Preferably, an avoidance groove for avoiding the head of the third bolt is provided in the assembly base body key groove.

[0019] Preferably, a first bolt threaded hole corresponding to the first bolt and a second bolt threaded hole corresponding to the second bolt are provided on the assembly base; a first bolt threaded through hole corresponding to the first bolt and a second bolt threaded hole corresponding to the second bolt are provided on the two-way insertion guide plate; and a second bolt threaded through hole corresponding to the second bolt is provided on the lock plate.

[0020] The first bolt passes through the first bolt threaded through hole on the two-way insertion guide plate and is tightly screwed and connected to the first bolt threaded hole on the assembly base to fix the two-way insertion guide plate to the assembly base. After the second bolt passes through the second bolt threaded through hole on the lock plate, a part of it is tightly screwed and connected to the second bolt threaded hole on the assembly base to fix the lock plate to the assembly base; and the other part is tightly screwed and connected to the second bolt threaded hole on the two-way insertion guide plate to fix the lock plate to the two-way insertion guide plate.

[0021] Preferably, the first bolt threaded through hole is a countersunk threaded through hole.

[0022] Preferably, a lock plate installation groove capable of positioning and installing the lock plate is provided on the outer side surface of the two-way insertion guide plate.

[0023] Preferably, the first bolt is an M16 hexagon socket head cap screw, the second bolt is an M12 hexagon socket head cap screw, and the third bolt is an M8 hexagon socket head cap screw.

[0024] By adopting the above technical solutions, the beneficial effects of the present invention compared with the prior art are as follows: the structure is stable, the guide plate is uniformly stressed in all directions; the guiding accuracy is ensured; and the service life of the guide plate and the mold is prolonged. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0026] Figure 1 The drawings are an axonometric view of a locking structure of a two-way insertion guide plate of the present invention. Figure 1 .

[0027] Figure 2 The drawings are an axonometric view of a locking structure of a two-way insertion guide plate of the present invention. Figure 2 .

[0028] Figure 3 The drawings are a front view of a blank holder.

[0029] Figure 4 The attached drawing is Figure 3 the sectional view taken along the D-D line in

[0030] Figure 5 The attached drawing is Figure 4 the partial sectional view of part E in

[0031] Figure 6 The attached drawing is the top view of the blank holder.

[0032] Figure 7 The attached drawing is Figure 6 the sectional view taken along the A-A line in

[0033] Figure 8 The attached drawing is the axonometric view of the whole die.

[0034] Among them, in the figure,

[0035] 100 - assembly base,

[0036] 101 - keyway of the assembly base;

[0037] 200 - two-way insert type guide plate,

[0038] 201 - keyway of the guide plate;

[0039] 300 - locking plate,

[0040] 400 - guide plate positioning key,

[0041] 500 - first bolt;

[0042] 600 - second bolt;

[0043] 700 - third bolt;

[0044] 800 - locking plate installation groove. Detailed implementation manners

[0045] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the attached drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the attached drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0047] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0048] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0050] Embodiment:

[0051] Next, according to Figures 1-6 a locking structure of a two-way insertion guide plate according to an embodiment of the present invention will be described in detail.

[0052] As Figures 1-6As shown in the figure, an embodiment of the present invention discloses a locking structure for a bidirectional insertion guide plate, which includes: an assembly base body 100 located between the upper and lower die bases, and bidirectional insertion guide plates 200 and locking plates 300 fixed on both sides of the assembly base body 100; the following will introduce one side of the assembly base body 100 as an example.

[0053] In the embodiment of the present invention, a guide plate positioning key 400 is arranged between the bidirectional insertion guide plate 200 and the assembly base body 100. During the working process of the mold, the bidirectional insertion guide plate 200 and the assembly base body 100 are positioned by the guide plate positioning key 400.

[0054] Specifically, a guide plate keyway 201 machined by NC is arranged on the bidirectional insertion guide plate 200, and an assembly base body keyway 101 machined by NC is arranged on the assembly base body 100; one end of the guide plate positioning key 400 is locked at the guide plate keyway 201, and the other end is in transitional fit with the assembly base body keyway 101.

[0055] More specifically, a third bolt threaded through hole is arranged on the guide plate positioning key 400, a third bolt threaded hole corresponding to the third bolt threaded through hole is arranged in the guide plate keyway 201, and the guide plate positioning key 400 is locked with the guide plate keyway 201 through the third bolt threaded through hole, the third bolt threaded hole, and a third bolt 700 that fits with the two holes. That is to say, the third bolt 700 passes through the third bolt threaded through hole on the guide plate positioning key 400 and is screwed and tightly fitted with the third bolt threaded hole in the guide plate keyway 201 to lock and fix the guide plate positioning key 400 at the guide plate keyway 201.

[0056] Further, the third bolt 700 is an M8 hexagon socket head cap screw, the third bolt threaded through hole is an M8 threaded through hole machined by NC, and the third bolt threaded hole is an M8 threaded hole machined by NC. The M8 threaded through hole on the guide plate positioning key 400 is subjected to quenching treatment and the hardness after quenching is 45 - 50HRC.

[0057] The other end of the guide plate positioning key 400 is in transitional fit with the assembly base body keyway 101, and the fit tolerance is H7 / h6. Further, since one end of the guide plate positioning key 400 that is in transitional fit with the assembly base body keyway 101 must be screwed into the third bolt 700, a relief groove for avoiding the head of the third bolt is also arranged in the assembly base body keyway 101 to achieve precise transitional fit.

[0058] In the embodiment of the present invention, the bidirectional insertion guide plate 200 and the assembly base body 100 are also fixed by four first bolts 500.

[0059] Specifically, a first bolt threaded through-hole corresponding to the first bolt 500 is provided on the two-way insertion guide plate 200, and a first bolt threaded hole corresponding to the first bolt 500 is provided on the assembly base 100. The first bolt 500 passes through the first bolt threaded through-hole on the two-way insertion guide plate 200 and is tightly screwed into the first bolt threaded hole on the assembly base 100 to fix the two-way insertion guide plate 200 to the assembly base 100.

[0060] Among them, the first bolt 500 is an M16 hex socket head cap screw, the first bolt threaded through-hole is an M16 counterbore threaded through-hole machined by NC, and the first bolt threaded hole is an M16 threaded hole machined by NC.

[0061] In the embodiment of the present invention, the locking plate 300 is arranged on the outer sides of the assembly base 100 and the two-way insertion guide plate 200, and the locking plate 300 is connected to the assembly base 100 and the two-way insertion guide plate 200 through four second bolts 600.

[0062] Specifically, four second bolt threaded through-holes corresponding to the four second bolts 600 are provided on the locking plate 300, two second bolt threaded holes corresponding to the two outer second bolt threaded through-holes are provided on the assembly base 100. After the two second bolts 600 pass through the outer second bolt threaded through-holes on the locking plate 300, they are tightly screwed into the second bolt threaded holes on the assembly base 100 to fix both ends of the locking plate 300 to the assembly base 100. Two second bolt threaded holes corresponding to the two inner second bolt threaded through-holes are also provided on the two-way insertion guide plate 200. After the two second bolts 600 pass through the inner second bolt threaded through-holes on the locking plate 300, they are screwed into the second bolt threaded holes on the two-way insertion guide plate 200 to fix the middle part of the locking plate 300 to the two-way insertion guide plate 200.

[0063] Among them, the second bolt 600 is an M12 hex socket head cap screw, the second bolt threaded through-hole is an M12 counterbore threaded through-hole machined by NC, and the second bolt threaded hole is an M12 threaded hole machined by NC.

[0064] A locking plate installation groove 800 for positioning and installing the locking plate 300 is provided on the outer side surface of the two-way insertion guide plate 200, and the locking plate installation groove 800 is machined by NC.

[0065] In addition, both ends of the locking plate 300 are designed in a snap structure form, and an assembly base card slot corresponding to and tightly mating with the snap is provided on the assembly base 100, and the assembly base card slot is machined by NC.

[0066] It should be emphasized here that when installing the two-way insertion guide plate 200, the first bolt 500 must be tightened first, and then the second bolt 600.

[0067] The specific working process of the locking structure of the bidirectional insertion guide plate of the present invention is as follows:

[0068] Install the bidirectional insertion guide plate 200 on the assembly base 100, and guide it with the upper and lower die bases during work; a guide plate positioning key 400 is provided between the bidirectional insertion guide plate 200 and the assembly base 100. The guide plate positioning key 400 is tightly fitted and locked at the guide plate keyway 201 with an M8 hexagon socket head cap screw. The guide plate positioning key 400 and the assembly base keyway 101 are in a transition fit, and the fit tolerance is H7 / h6; the bidirectional insertion guide plate 200 is fixed to the assembly base 100 with 4 M16 hexagon socket head cap screws; a locking plate 300 is provided outside the bidirectional insertion guide plate 200 and the assembly base 100. The two ends of the locking plate 300 are tightly fitted with the two assembly base card slots respectively, and the locking plate 300 is fixed to the assembly base 100 and the bidirectional insertion guide plate 200 with 4 M12 hexagon socket head cap screws.

[0069] The mold is installed on the machine tool, and the assembly base 100 is lifted to a certain height by the ejector rod on the machine tool table. During work, the machine tool slider descends, and the guide sliding surface of the upper die base contacts and guides the upper guide sliding surface of the bidirectional insertion guide plate 200. At this time, the force received by the guide plate causes the bidirectional insertion guide plate 200 to have a tendency to move downward. When the force is transmitted to the guide plate positioning key 400, a part of it is offset. The torque generated by the unbalanced force of the guide plate is offset by the locking plate 300; when the surface of the upper die base contacts the assembly base 100, after the assembly base 100 presses the blank, it starts to descend, and the guide sliding surface of the lower die base contacts and guides the lower guide sliding surface of the bidirectional insertion guide plate 200. At this time, the force received by the bidirectional insertion guide plate 200 causes the guide plate to have a tendency to move upward. When the force is transmitted to the guide plate positioning key 400, a part of it is offset. The torque generated by the unbalanced force of the guide plate is offset by the locking plate 300. After the mold works to the bottom dead center, the machine tool slider rises, the upper die base disengages, and the machine tool ejector rod pushes the assembly base 100 back to the initial state. The operator takes out the workpiece, and at this time, a working cycle is completed.

[0070] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the relevant parts, reference can be made to the description in the method part.

[0071] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A locking structure for a two-way insertion guide plate, characterized in that, Including: An assembly base body (100); Two-way insertion guide plates (200), two of the two-way insertion guide plates (200) are respectively located on both sides of the assembly base body (100), a guide plate positioning key (400) is arranged between the two-way insertion guide plate (200) and the assembly base body (100), and during the working process of the mold, the two-way insertion guide plate (200) and the assembly base body (100) are positioned by the guide plate positioning key (400); the two-way insertion guide plate (200) and the assembly base body (100) are also fixed by a plurality of first bolts (500); A lock plate (300), the lock plate (300) is arranged outside the assembly base body (100) and the two-way insertion guide plate (200), and the lock plate (300) is connected to the assembly base body (100) and the two-way insertion guide plate (200) by a plurality of second bolts (600); Both ends of the lock plate (300) are designed in the form of a buckle structure, and an assembly base body clamping groove corresponding to the buckle is arranged on the assembly base body (100); A guide plate key groove (201) is arranged on the two-way insertion guide plate (200), and an assembly base body key groove (101) is arranged on the assembly base body (100); one end of the guide plate positioning key (400) is locked at the guide plate key groove (201), and the other end is in transitional fit with the assembly base body key groove (101).

2. The locking structure of a two-way insertion guide plate according to claim 1, characterized in that A third bolt threaded through hole is arranged on the guide plate positioning key (400), a third bolt threaded hole corresponding to the third bolt threaded through hole is arranged in the guide plate key groove (201), and the guide plate positioning key (400) is locked with the guide plate key groove (201) through the third bolt threaded through hole, the third bolt threaded hole and a third bolt (700) matching the two holes.

3. The locking structure of a two-way plug-in guide plate according to claim 2, characterized in that, An avoidance groove for avoiding the head of the third bolt (700) is arranged in the assembly base body key groove (101).

4. The locking structure of a two-way plug-in guide plate according to claim 1, characterized in that, First bolt threaded holes corresponding to the first bolts (500), second bolt threaded holes corresponding to the second bolts (600) are arranged on the assembly base body (100); first bolt threaded through holes corresponding to the first bolts (500), second bolt threaded holes corresponding to the second bolts (600) are arranged on the two-way insertion guide plate (200); second bolt threaded through holes corresponding to the second bolts (600) are arranged on the lock plate (300).

5. The locking structure of a two-way insertion guide plate according to claim 4, characterized in that, The first bolt threaded through hole is a countersunk head threaded through hole.

6. The locking structure of a bidirectional insertion guide plate according to claim 1, characterized in that A lock plate installation groove (800) capable of positioning and installing the lock plate (300) is arranged on the outer side surface of the two-way insertion guide plate (200).

7. The locking structure of a two-way plug-in guide plate according to claim 2 or 3, characterized in that, The first bolt (500) is an M16 hexagon socket head cap screw, the second bolt (600) is an M12 hexagon socket head cap screw, and the third bolt (700) is an M8 hexagon socket head cap screw.

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