Positioning block for special-shaped punched hole of plastic tail door outer plate

Abstract

When the positioning block is used, the positioning block is placed on the plane where an area needing to be positioned is located, then the plastic tail door outer plate is placed on the top of the third boss, at the moment, one part of the plastic tail door outer plate falls into the inner space of the positioning groove, and the other part of the plastic tail door outer plate is connected with the check block in a clamped mode. At the moment, due to the fact that the second boss and the third boss form a step-shaped boss, under the combined action of the step-shaped boss, the positioning groove and the check block, the plastic tail door outer plate is limited by the positioning block, and when punching is needed, the punch can directly fall into the positioning hole to achieve punching work on the plastic tail door outer plate; in order to meet the punching requirements of different special-shaped holes, the second boss and the third boss can be replaced, in this way, the external shapes of the second boss and the third boss can be changed, meanwhile, the position and shape of the positioning hole can be changed, and fine positioning can be conducted on the different special-shaped holes by replacing the shape of the head of the positioning block.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching and welding of plastic tailgates, in particular to a positioning block for special-shaped punching of an outer plate of a plastic tailgate. Background Art

[0002] With the increasing requirements for automobile fuel, endurance and emissions, the demand for automobile lightweighting is imminent. With the development of lightweight and diversified automobile shapes, the application of plastics in automobiles is becoming more and more common. The structure of plastic tailgate can generally be divided into inner panel, outer panel and spoiler.

[0003] The existing plastic tailgate outer panel special-shaped punching adopts the plastic bracket punching and welding technology, and the feeding mechanism adopts the shape of the punching to perform positioning. However, due to the shape of the plastic tailgate, the bracket cannot be accurately positioned, which will cause the position fluctuation to exceed the range required by the customer. Therefore, the utility model proposes a positioning block for the special-shaped punching of the plastic tailgate outer panel to solve the above problem. Utility Model Content

[0004] The utility model provides a positioning block for special-shaped punching of a plastic tailgate outer plate, aiming to solve the problems raised by the background technology.

[0005] The utility model is realized in that a positioning block for a special-shaped punching hole of a plastic tailgate outer panel comprises a base and a positioning hole;

[0006] The base is arranged horizontally, and a stopper is arranged on the outer wall of the base;

[0007] The top surface of the base is provided with a first boss, and the first boss is provided with a positioning groove;

[0008] A second boss is disposed on the bottom surface of the inner wall of the positioning groove, a third boss is disposed on the top surface of the second boss, and the positioning hole passes through the base, the second boss and the third boss in sequence.

[0009] Preferably, the stopper is a T-shaped structure, and the outer wall of the stopper is an arc transition structure.

[0010] Preferably, the four corners of the positioning groove are arc transition structures.

[0011] Preferably, the cross-sections of the rear side surfaces of the second boss and the third boss are both elliptical structures, and the two right angles of the front side surfaces of the second boss and the third boss are both arc transition structures.

[0012] Preferably, the positioning hole is a convex structure.

[0013] Preferably, the horizontal cross-sectional area of ​​the first boss is smaller than the horizontal cross-sectional area of ​​the base.

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

[0015] When the positioning block of the special-shaped punching hole is to be used for positioning, the positioning block is first placed on the plane where the positioning area is required, and then the plastic tailgate outer panel is placed on the top of the third boss. At this time, a part of the plastic tailgate outer panel falls into the internal space of the positioning groove, and the other part is clamped with the stop block. At this time, since the second boss and the third boss form a stepped boss, under the joint action of the stepped boss, the positioning groove and the stop block, the plastic tailgate outer panel is limited by the positioning block. When punching is required, the punch will directly fall into the positioning hole to realize the punching of the plastic tailgate outer panel. In order to adapt to the punching requirements of different special-shaped holes, the second boss and the third boss can be replaced, so that the external shapes of the second boss and the third boss can be changed, and the position and shape of the positioning hole can also be changed. By changing the shape of the positioning block head, precise positioning can be performed for different special-shaped holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the overall structure of the utility model from one viewing angle;

[0017] Figure 2 A three-dimensional diagram of the overall structure of the utility model from another perspective;

[0018] Figure 3 It is a top view of the overall structure of the utility model;

[0019] Figure 4 It is a bottom view of the overall structure of the utility model;

[0020] Figure 5 It is a side sectional view of the overall structure of the utility model.

[0021] In the figure:

[0022] 1. Base; 2. First boss; 3. Positioning groove; 4. Second boss; 5. Third boss; 6. Positioning hole; 7. Stop block. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0024] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0025] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the blocks or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 indirectly connected 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.

[0028] See also Figures 1 to 5 The utility model provides a technical solution: a positioning block for a special-shaped punching of a plastic tailgate outer panel, comprising a base 1 and a positioning hole 6; the base 1 is horizontally arranged, and a stopper 7 is provided on the outer wall of the base 1; a first boss 2 is provided on the top surface of the base 1, and a positioning groove 3 is opened on the first boss 2; a second boss 4 is provided on the bottom surface of the inner wall of the positioning groove 3, and a third boss 5 is provided on the top surface of the second boss 4, and the positioning hole 6 passes through the base 1, the second boss 4 and the third boss 5 in sequence.

[0029] In the present embodiment, when the positioning block with the special-shaped punching hole is to be used for positioning, the positioning block is first placed on the plane where the positioning area is required, and then the plastic tailgate outer panel is placed on the top of the third boss 5. At this time, a part of the plastic tailgate outer panel falls into the internal space of the positioning groove 3, and the other part is engaged with the stopper 7. At this time, since the second boss 4 and the third boss 5 form a stepped boss, under the joint action of the stepped boss, the positioning groove 3 and the stopper 7, the plastic tailgate outer panel is limited by the positioning block. When punching is required, the punch will directly fall into the positioning hole 6 to realize the punching of the plastic tailgate outer panel. In order to adapt to the punching requirements of different special-shaped holes, the second boss 4 and the third boss 5 can be replaced, so that the external shapes of the second boss 4 and the third boss 5 can be changed, and the position and shape of the positioning hole 6 can also be changed. By changing the shape of the positioning block head, precise positioning can be performed for different special-shaped holes.

[0030] For further information, see Figure 1 The stopper 7 is a T-shaped structure, and the outer wall of the stopper 7 is an arc transition structure.

[0031] In this embodiment, the stopper 7 is a T-shaped structure, and the outer wall of the stopper 7 is an arc transition structure, so that the stopper 7 is conveniently connected with the tailgate outer panel to achieve the positioning requirement; in another preferred embodiment, the position of the stopper 7 on the outer wall of the base 1 can be changed according to the actual situation of the tailgate outer panel.

[0032] For further information, see Figure 2 and Figure 3 The four corners of the positioning groove 3 are arc transition structures.

[0033] In this embodiment, the four corners of the positioning groove 3 are arc transition structures, which facilitates a part of the tailgate outer panel to enter the inner space of the positioning groove 3 and reduces friction resistance.

[0034] For further information, see Figure 1 and Figure 2 The cross sections of the rear sides of the second boss 4 and the third boss 5 are both elliptical structures, and the two right angles of the front sides of the second boss 4 and the third boss 5 are both arc transition structures.

[0035] In the present embodiment, the cross-sections of the rear sides of the second boss 4 and the third boss 5 are both elliptical structures, and the two right angles of the front sides of the second boss 4 and the third boss 5 are both arc transition structures, which facilitates the tailgate outer panel to enter the interior of the positioning groove 3 and reduces friction resistance; at the same time, in another preferred embodiment, the second boss 4 and the third boss 5 can be replaced, so that the external shapes of the second boss 4 and the third boss 5 can be changed, and the position and shape of the positioning hole 6 can also be changed. By changing the shape of the positioning block head, precise positioning can be performed for different special-shaped holes.

[0036] For further information, see Figure 5 , the positioning hole 6 is a convex structure.

[0037] In this embodiment, since the positioning hole 6 is a convex structure, narrow at the top and wide at the bottom, when the second boss 4 and the third boss 5 are replaced, it can be ensured that the positioning hole 6 is a through groove penetrating therethrough.

[0038] For further information, see Figure 1 and Figure 2 The horizontal cross-sectional area of ​​the first boss 2 is smaller than the horizontal cross-sectional area of ​​the base 1 .

[0039] In this embodiment, the horizontal cross-sectional area of ​​the first boss 2 is smaller than the horizontal cross-sectional area of ​​the base 1, so that it is convenient to fix the positioning block in the plane of the positioning area by fixing bolts, and it is only necessary to fix the bottom surface of the nut to the top surface of the base 1 by bolts.

[0040] The working principle and use process of the utility model are as follows: when the positioning block of the special-shaped punching hole is to be used for positioning, the positioning block is first placed on the plane where the positioning area is required, and then the plastic tailgate outer panel is placed on the top of the third boss 5. At this time, a part of the plastic tailgate outer panel falls into the internal space of the positioning groove 3, and the other part is engaged with the stopper 7. At this time, since the second boss 4 and the third boss 5 form a stepped boss, under the joint action of the stepped boss, the positioning groove 3 and the stopper 7, the plastic tailgate outer panel is limited by the positioning block. When punching is required, the punch will directly fall into the positioning hole 6 to realize the punching of the plastic tailgate outer panel; in order to adapt to the punching requirements of different special-shaped holes, the second boss 4 and the third boss 5 can be replaced, so that the external shapes of the second boss 4 and the third boss 5 can be changed, and the position and shape of the positioning hole 6 can also be changed. By changing the shape of the positioning block head, precise positioning can be performed for different special-shaped holes.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning block for special-shaped punching of a plastic tailgate outer panel, characterized in that: It comprises a base (1) and a positioning hole (6); The base (1) is arranged horizontally, and a stopper (7) is provided on the outer wall of the base (1); The top surface of the base (1) is provided with a first boss (2), and the first boss (2) is provided with a positioning groove (3); A second boss (4) is provided on the bottom surface of the inner wall of the positioning groove (3), a third boss (5) is provided on the top surface of the second boss (4), and the positioning hole (6) passes through the base (1), the second boss (4) and the third boss (5) in sequence.

2. The positioning block for the special-shaped punching of the plastic tailgate outer panel according to claim 1, characterized in that: The stopper (7) is a T-shaped structure, and the outer wall of the stopper (7) is an arc transition structure.

3. The positioning block for the special-shaped punching of the plastic tailgate outer panel according to claim 1, characterized in that: The four corners of the positioning groove (3) are arc transition structures.

4. The positioning block for the special-shaped punching of the plastic tailgate outer panel according to claim 1, characterized in that: The cross-sections of the rear sides of the second boss (4) and the third boss (5) are both elliptical structures, and the two right angles of the front sides of the second boss (4) and the third boss (5) are both arc transition structures.

5. The positioning block for the special-shaped punching of the plastic tailgate outer panel according to claim 1, characterized in that: The positioning hole (6) is a convex structure.

6. The positioning block for the special-shaped punching of the outer panel of the plastic tailgate according to claim 1, characterized in that: The horizontal cross-sectional area of ​​the first boss (2) is smaller than the horizontal cross-sectional area of ​​the base (1).

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