Interface adjustment mechanism of a car pedestrian protection beam

Abstract

The utility model discloses an interface adjusting mechanism of automobile pedestrian protection beam, include: support seat, first positioning die head, second positioning die head and adjusting assembly, adjusting assembly includes first execution element, connecting arm, floating pressure bar, first pressure block and second pressure block, first positioning die head and second positioning die head are used for respectively with the both ends interface positioning of piece to be processed and are inserted, and first pressure block and second pressure block are located the top of first positioning die head and second positioning die head, and first execution element can drive floating pressure bar to move up and down, make first pressure block and second pressure block extrude downward or lift upward, the utility model embodiment is driven first pressure block and second pressure block on both ends of floating pressure bar and moves up and down through setting, and the principle of seesaw can balance the force of first pressure block and second pressure block and press, and cooperate first positioning die head and the positioning of second positioning die head to piece to be processed, can make the stress of piece to be processed both ends more balanced, help to promote the connection accuracy of special-shaped clamping slot.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to an interface adjustment mechanism for a pedestrian protection beam for automobiles. Background Technology

[0002] A pedestrian protection beam is an energy-absorbing structural component specifically designed to reduce leg injuries to pedestrians in vehicle collisions. It is typically installed under the front bumper of a vehicle and minimizes injury to the pedestrian's legs (especially the shin and knee) during a collision. The ends of the pedestrian protection beam generally feature two floating, interlocking slots as interfaces. Upon impact, the gap between the two slots narrows or collapses, thus absorbing energy and providing a cushioning effect.

[0003] When assembling pedestrian protection beams, there are precision requirements for the spacing tolerance at each end interface. However, the existing interface adjustment mechanism is prone to uneven stress at various points in the slots when adjusting some irregularly shaped slots with different sizes at both ends. This leads to a larger spacing tolerance between the slots, making it difficult to meet the precision requirements. Utility Model Content

[0004] In view of this, the present invention provides an interface adjustment mechanism for a pedestrian protection beam for automobiles, which solves the problem that the interface adjustment mechanism in the prior art is prone to uneven force distribution in various parts of the slot when adjusting and processing irregularly shaped slots.

[0005] To achieve one or more of the above objectives or other objectives, this utility model proposes: an interface adjustment mechanism for a pedestrian protection beam for automobiles, comprising: a support base, a first positioning mold, a second positioning mold, and an adjustment component;

[0006] The first positioning die and the second positioning die are respectively disposed at both ends of the support base, and are used to position and insert with the interfaces at both ends of the workpiece to be processed, respectively. The adjustment component is disposed on one side of the support base.

[0007] The adjustment assembly includes a first actuator, a connecting arm, a floating pressure rod, a first pressure block, and a second pressure block. The actuator end of the first actuator is driven to the rear end of the connecting arm, the front end of the connecting arm is hinged to the middle of the floating pressure rod, and the first pressure block and the second pressure block are respectively disposed at both ends of the floating pressure rod.

[0008] The first positioning die and the second positioning die are used to position and insert with the interfaces at both ends of the workpiece to be processed, respectively. The first pressure block is located above the first positioning die, and the second pressure block is located above the second positioning die. The first actuator can drive the floating pressure rod to move up and down through the connecting arm, so that the first pressure block and the second pressure block are pressed down or lifted up.

[0009] Preferably, the front end of the connecting arm is provided with a hinge seat, the middle part of the floating pressure rod is provided with a hinge hole, and the hinge seat and the hinge hole are hinged together by a hinge shaft.

[0010] Preferably, the connecting arm is horizontally positioned, and the floating pressure rod is perpendicular to the connecting arm.

[0011] Preferably, the thickness of the first positioning mold head is greater than the thickness of the second positioning mold head.

[0012] Preferably, the length of the first pressing block is less than the length of the second pressing block.

[0013] Preferably, the first positioning die is connected to a second actuator, which can drive the first positioning die to be positioned and inserted or separated from one end of the workpiece.

[0014] Preferably, the second positioning die head is connected to a third actuator, which can drive the second positioning die head to be positioned and inserted or separated from the other end interface of the workpiece to be processed.

[0015] Preferably, the first positioning mold head includes a first mold head and a first positioning seat, and the first mold head and the first positioning seat are detachably connected.

[0016] Preferably, the second positioning mold head includes a second mold head and a second positioning seat, and the second mold head and the second positioning seat are detachably connected.

[0017] Preferably, the first actuator, the second actuator, and the third actuator are cylinders or hydraulic cylinders.

[0018] Implementing the embodiments of this utility model will have the following beneficial effects:

[0019] After adopting the interface adjustment mechanism of the above-mentioned car pedestrian protection beam, the floating pressure rod drives the first pressure block and the second pressure block at both ends to move up and down. By using the seesaw principle, the downward pressure force of the first pressure block and the second pressure block can be balanced. In conjunction with the positioning of the workpiece by the first positioning mold head and the second positioning mold head, the force on both ends of the workpiece can be more balanced, which helps to improve the connection accuracy of the irregular groove. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] in:

[0022] Figure 1 This is a schematic diagram showing the usage state of the interface adjustment mechanism of the vehicle pedestrian protection beam proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the interface adjustment mechanism of the pedestrian protection beam for automobiles proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the adjustment component of the interface adjustment mechanism for the pedestrian protection beam for automobiles proposed in this utility model.

[0025] Figure 4 This is a partial exploded view of the interface adjustment mechanism of the vehicle pedestrian protection beam proposed in this utility model.

[0026] Reference numerals: 10, support base; 20, first positioning mold head; 201, first mold head; 202, first positioning base; 21, second actuator; 30, second positioning mold head; 301, second mold head; 302, second positioning base; 31, third actuator; 40, adjustment assembly; 41, first actuator; 42, connecting arm; 421, hinge base; 422, hinge shaft; 43, floating pressure rod; 431, hinge hole; 44, first pressure block; 45, second pressure block; 50, workpiece to be processed. Detailed Implementation

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] like Figure 1-4 The image shown is an embodiment provided by this utility model.

[0031] This utility model embodiment provides an interface adjustment mechanism for a pedestrian protection beam for automobiles, including: a support base 10, a first positioning mold 20, a second positioning mold 30, and an adjustment component 40. The support base 10 is used to support and place the workpiece 50 to be processed. The workpiece 50 is usually the whole or part of the pedestrian protection beam structure, mainly composed of two slots, one of which is embedded in the other to form a connection. The first positioning mold 20 and the second positioning mold 30 are respectively disposed at both ends of the support base 10, used to fix and position the interfaces at both ends of the workpiece 50, accurately determine the position of the workpiece 50 in the horizontal plane, and limit the limit connection depth of the upper and lower parts of the workpiece 50. The adjustment component 40 is disposed on one side of the support base 10 and is the core driving part of the adjustment mechanism to realize the pressing and releasing functions.

[0032] Specifically, the adjustment assembly 40 includes a first actuator 41, a connecting arm 42, a floating pressure rod 43, a first pressure block 44, and a second pressure block 45. The first actuator 41 serves as the main power source (a cylinder or hydraulic cylinder can be selected), and its actuator end (such as the piston rod end of a cylinder) is driven to the rear end of the connecting arm 42. The linear extension and retraction motion of the first actuator 41 directly drives the connecting arm 42 to produce corresponding up and down motion. The connecting arm 42 acts as a force transmission lever, and its front end is hinged to the middle of the floating pressure rod 43. This hinged connection allows the floating pressure rod 43 to swing around the hinge point at a certain angle when driven by the connecting arm 42. The first pressure block 44 and the second pressure block 45 are force-applying components that directly act on the upper surface of the workpiece 50, and are respectively set on the floating... Both ends of the pressure rod 43 can swing with the swing of the floating pressure rod 43; the first positioning mold head 20 and the second positioning mold head 30 are used to position and insert with the two ends of the workpiece 50 respectively. In the assembly positioning state, the first pressure block 44 is located directly above the first positioning mold head 20, ready to press the upper part of the workpiece 50 downward onto the upper surface of the first positioning mold head 20, and the second pressure block 45 is located directly above the second positioning mold head 30, ready to press the upper part of the workpiece 50 downward onto the upper surface of the second positioning mold head 30. The first actuator 41 can drive the connecting arm 42 and drive the floating pressure rod 43 to move up and down, so that the first pressure block 44 and the second pressure block 45 press down on the upper part of the workpiece 50, or lift up away from the workpiece 50.

[0033] After adopting the interface adjustment mechanism of the above-mentioned car pedestrian protection beam, the floating pressure rod 43 drives the first pressure block 44 and the second pressure block 45 at both ends to move up and down. Even if there are slight manufacturing tolerances in the interface height at both ends of the workpiece 50 or slight unevenness in the installation of the first positioning mold 20 and the second positioning mold 30, the floating pressure rod 43 can automatically adapt to and balance the downward force of the first pressure block 44 and the second pressure block 45 by utilizing the principle of force balance (i.e., the floating pressure rod 43 works like a "seesaw" around the central hinge point). This balanced clamping force, together with the precise positioning and insertion of the first positioning mold 20 and the second positioning mold 30 into the workpiece 50, can make the force on both ends of the workpiece 50 more balanced, and avoid the slight twisting or displacement of the workpiece 50 due to excessive force on one side during the clamping process. This helps to improve the connection accuracy and reliability of the irregular slot.

[0034] Specifically, the front end of the connecting arm 42 is provided with a hinge seat 421. The hinge seat 421 is a double-eared hinge seat 421 with two shaft holes, which is set downward at the bottom of the front end of the connecting arm 42. The middle part of the floating pressure rod 43 is provided with a hinge hole 431. The hinge seat 421 and the hinge hole 431 are hinged together by a hinge shaft 422. This hinge structure ensures reliable force transmission and the required rotational freedom between the connecting arm 42 and the floating pressure rod 43, which is the basis for realizing the "seesaw" balancing action.

[0035] Furthermore, the connecting arm 42 is set horizontally, and the floating pressure rod 43 is perpendicular to the connecting arm 42, which helps to efficiently convert the linear drive of the first actuator 41 into the vertical linear motion of the floating pressure rod 43, reduce unnecessary lateral force, and make the pressing action of the first pressure block 44 and the second pressure block 45 more vertical and direct.

[0036] Specifically, in order to accommodate the different interface widths at both ends of the irregular card slot, the thickness of the first positioning mold 20 is greater than the thickness of the second positioning mold 30. Correspondingly, the length of the first pressure block 44 is less than the length of the second pressure block 45, thereby balancing the leverage effect that may be caused by the difference in thickness between the first positioning mold 20 and the second positioning mold 30, and ensuring a more reasonable pressure distribution.

[0037] Specifically, the first positioning mold 20 is connected to a second actuator 21, which can be a cylinder or a hydraulic cylinder. The second actuator 21 can drive the first positioning mold 20 to move linearly in the horizontal direction, so that it is positioned and inserted or separated from one end interface of the workpiece 50. Correspondingly, the second positioning mold 30 is connected to a third actuator 31, which can be a cylinder or a hydraulic cylinder. The third actuator 31 can drive the second positioning mold 30 to move linearly in the horizontal direction, so that it is positioned and inserted or separated from the other end interface of the workpiece 50. Through the setting of the second actuator 21 and the third actuator 31, the automatic positioning and separation of the two ends interfaces of the first positioning mold 20, the second positioning mold 30 and the workpiece 50 can be realized without manual insertion and removal, which improves efficiency and consistency.

[0038] Furthermore, the first positioning mold head 20 includes a first mold head 201 and a first positioning seat 202, which are detachably connected. The second positioning mold head 30 includes a second mold head 301 and a second positioning seat 302, which are detachably connected. Through modular design, it is convenient to select different specifications of the first mold head 201 and the second mold head 301 according to different product specifications for adaptation, and it is also convenient for replacement and maintenance.

[0039] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An interface adjustment mechanism for a pedestrian protection beam for automobiles, characterized in that, include: Support base (10), first positioning mold (20), second positioning mold (30) and adjustment component (40); The first positioning mold (20) and the second positioning mold (30) are respectively disposed at both ends of the support base (10) for positioning and insertion with the two ends of the workpiece (50) to be processed, and the adjustment component (40) is disposed on one side of the support base (10). The adjustment assembly (40) includes a first actuator (41), a connecting arm (42), a floating pressure rod (43), a first pressure block (44), and a second pressure block (45). The actuator end of the first actuator (41) is driven to be connected to the rear end of the connecting arm (42). The front end of the connecting arm (42) is hinged to the middle of the floating pressure rod (43). The first pressure block (44) and the second pressure block (45) are respectively disposed at both ends of the floating pressure rod (43). The first pressure block (44) is located above the first positioning mold head (20), and the second pressure block (45) is located above the second positioning mold head (30). The first actuator (41) can drive the floating pressure rod (43) to move up and down through the connecting arm (42), so that the first pressure block (44) and the second pressure block (45) are pressed down or lifted up.

2. The interface adjustment mechanism of the vehicle pedestrian protection beam according to claim 1, characterized in that, The connecting arm (42) is provided with a hinge seat (421) at its front end, and the floating pressure rod (43) is provided with a hinge hole (431) in the middle. The hinge seat (421) and the hinge hole (431) are hinged together by a hinge shaft (422).

3. The interface adjustment mechanism of the vehicle pedestrian protection beam according to claim 2, characterized in that, The connecting arm (42) is horizontally positioned, and the floating pressure rod (43) is perpendicular to the connecting arm (42).

4. The interface adjustment mechanism of the vehicle pedestrian protection beam according to claim 1, characterized in that, The thickness of the first positioning mold (20) is greater than the thickness of the second positioning mold (30).

5. The interface adjustment mechanism of the vehicle pedestrian protection beam according to claim 4, characterized in that, The length of the first pressing block (44) is less than the length of the second pressing block (45).

6. The interface adjustment mechanism of the vehicle pedestrian protection beam according to claim 1, characterized in that, The first positioning mold (20) is connected to a second actuator (21), which can drive the first positioning mold (20) to be positioned and inserted or separated from one end interface of the workpiece (50).

7. The interface adjustment mechanism for the pedestrian protection beam of a vehicle according to claim 6, characterized in that, The second positioning mold (30) is connected to a third actuator (31), which can drive the second positioning mold (30) to be positioned and inserted or separated from the other end interface of the workpiece (50).

8. The interface adjustment mechanism of the vehicle pedestrian protection beam according to claim 6, characterized in that, The first positioning mold (20) includes a first mold (201) and a first positioning seat (202), which are detachably connected.

9. The interface adjustment mechanism of the vehicle pedestrian protection beam according to claim 7, characterized in that, The second positioning mold (30) includes a second mold (301) and a second positioning seat (302), and the second mold (301) and the second positioning seat (302) are detachably connected.

10. The interface adjustment mechanism of the vehicle pedestrian protection beam according to claim 7, characterized in that, The first actuator (41), the second actuator (21) and the third actuator (31) are cylinders or hydraulic cylinders.

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