A horizontal anti-pinch force measuring mechanism for a car sunroof

Abstract

The present invention relates to a horizontal anti-pinch force measuring mechanism for a car sunroof, comprising a pressure sensor, a lifting plate, a vertical guide rail and a lifting cylinder; further comprising a base plate, a connecting vertical plate, a guide slider provided with a guide slot, a lifting plate connecting block, a first guide sleeve and a first guide rod; one end of the lifting plate connecting block is fixedly connected to the lifting plate, and the other end of the lifting plate connecting block is fixed to the upper end of the lifting cylinder; the collision head assembly and the pressure sensor are distributed on both sides of the upper end of the lifting plate; in addition to the lifting plate, the vertical guide rail and the lifting cylinder, the horizontal anti-pinch force measuring mechanism is also provided with a connecting vertical plate to increase the stability of the structure, a guide slider is fixed on the connecting vertical plate, the lifting plate and the vertical guide rail perform lifting and lowering movements along the guide slot, and the lifting direction guiding effect is good; therefore, the horizontal anti-pinch force measuring mechanism has the advantages of good structural stability, precise lifting direction guiding, high repeatability and reproducibility of measurement results, and adaptability to large-scale measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile sunroof measurement, and in particular to a horizontal anti-pinch force measurement mechanism for an automobile sunroof. Background Art

[0002] With the development of the automotive industry, more and more vehicles are equipped with sunroofs to provide ventilation, lighting, and heat dissipation. Sunroofs are used to regulate the air quality and visibility inside the vehicle. Too little force during closing can cause the sunroof to not close tightly, while too much force can pose a safety hazard.

[0003] Anti-pinch force refers to the force at which the sunroof glass will stop or retract if a foreign object intrudes into the glass operating area when the sunroof is closed. To ensure safe use and prevent accidents, sunroof anti-pinch force testing is required during production. Sunroof anti-pinch force testing addresses safety performance requirements and requires passing the test before proceeding to the next step. Exceeding the anti-pinch force standard presents a potential safety hazard, threatening the safety of vehicle occupants.

[0004] Traditional anti-pinch force testers have poor structural stability and no guidance in the lifting direction, resulting in low repeatability and reproducibility of test results and are not suitable for large-scale measurements. Summary of the Invention

[0005] The purpose of the present invention is to provide a horizontal anti-pinch force measuring mechanism for a car sunroof, which can achieve good structural stability, precise lifting direction guidance, high repeatability and reproducibility of measurement results, and adaptability to the purpose of large-scale measurement.

[0006] The camshaft is connected to the lift plate by a first end fixed to the lift plate, and the second end of the first guide rod is connected to the lift plate by a second end connecting the first and second guide wheels, and the camshaft is connected to the lift plate by a second end connecting the first and second guide wheels.

[0007] As a preferred embodiment, the collision head assembly includes a collision head with a groove on one side, a fixed plate positioned within the groove, and a connector that flexibly connects the collision head and the fixed plate. A guide groove is also provided on the other side of the collision head. The collision head can swing slightly around the connector. The guide groove also accommodates the possibility of asynchronous closing of the sunroof glass. This ensures that the forces acting on the sunroof glass and the collision head are perpendicular during measurement, without angular deviation, thus ensuring accurate measurement data.

[0008] As a preferred embodiment, two second guide sleeves are symmetrically disposed at each end of the lifting plate. The two second guide sleeves are respectively inserted into the two second connection holes at each end of the lifting plate. Each second guide sleeve is provided with two movable second guide rods, the top ends of which are fixedly connected to the fixed plate. The two symmetrically designed second guide sleeves ensure smoother movement of the collision head. In addition, the two second guide rods guide the movement of the collision head assembly, reducing measurement errors and ensuring more accurate measurement results.

[0009] As a preferred solution, two guide blocks are provided vertically on either side of the connecting plate, and two vertical guide rails are symmetrically provided on either side of the lifting plate. These two guide blocks align with the vertical guide rails on either side of the lifting plate to ensure a smoother lifting process, reduce measurement errors, and provide more accurate measurement results.

[0010] As a preferred solution, a U-shaped fixing block with a U-shaped groove is provided on one side of the lifting plate, and the pressure sensor is arranged in the U-shaped groove of the fixing block. The fixing block fixes the pressure sensor to reduce measurement errors and make the measurement results more accurate.

[0011] As a preferred solution, the upper ends of the connecting vertical plates are provided with interconnecting transverse and vertical notches, sequentially from top to bottom. The U-shaped fixing block, first guide sleeve, and second guide sleeve are all positioned within the transverse notches, while the lifting plate connecting block is positioned within the vertical notches. The transverse and vertical notches prevent the lifting plate from interfering with the connecting vertical plates during its up-and-down movement.

[0012] As a preferred solution, two vertical reinforcement columns are fixedly connected to both sides of the connecting plate, thereby enhancing the strength and stability of the measuring mechanism.

[0013] The advantages of the present invention are as follows: in addition to the lifting plate, vertical guide rail and lifting cylinder, the horizontal anti-pinch force measuring mechanism is also provided with a connecting vertical plate to increase the stability of the structure. A guide slider is fixed on the connecting vertical plate, and the lifting plate and vertical guide rail are lifted and lowered along the guide slot, and the lifting direction guiding effect is good; the collision head assembly is subjected to the thrust of the skylight glass, and the collision head assembly drives the first guide sleeve and the first guide rod to produce a certain displacement, and the first guide rod transmits the force value to the pressure sensor, thereby measuring the anti-pinch force of the skylight. Therefore, the horizontal anti-pinch force measuring mechanism has the advantages of good structural stability, precise lifting direction guidance, high repeatability and reproducibility of measurement results, and adaptability to large-scale measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front perspective structural diagram of the horizontal anti-pinch force measurement mechanism (non-measuring state);

[0015] Figure 2 This is a three-dimensional structural diagram of the back of the horizontal anti-pinch force measurement mechanism (non-measuring state);

[0016] Figure 3 This is the front three-dimensional structural diagram of the horizontal anti-pinch force measurement mechanism (measuring state);

[0017] Figure 4 A three-dimensional structural diagram of the horizontal anti-pinch force measurement mechanism installed on the measuring fixture;

[0018] Figure 5 for Figure 1 Partially enlarged three-dimensional structure diagram;

[0019] Figure 6 for Figure 5 Plan structure diagram;

[0020] Figure 7 for Figure 2 Partially enlarged three-dimensional structure diagram;

[0021] Figure 8 It is a three-dimensional structural diagram of the collision head assembly;

[0022] Figure 9 It is a partial three-dimensional structural diagram of the lifting plate;

[0023] The components in the figure are numbered as follows:

[0024] Collision head assembly 1, groove 101, collision head 102, fixed plate 103, connecting piece 104, guide groove 105, threaded hole 106, pressure sensor 2, lifting plate 3, first connecting hole 31, second connecting hole 32, slide groove 33, vertical guide rail 4, lifting cylinder 5, base plate 6, connecting vertical plate 7, horizontal notch 71, vertical notch 72, guide slide groove 81, guide sliding block 8, lifting plate connecting block 9, first guide sleeve 10, first guide rod 11, first fixed block 16, second guide sleeve 12, second guide rod 13, second fixed block 17, U-shaped fixed block 14, U-shaped groove 141, reinforcing column 15, bracket 18, base 19; horizontal anti-pinch force measuring mechanism 100, measuring tool 200, measuring mechanism lifting direction 300, horizontal anti-pinch force direction 400. DETAILED DESCRIPTION

[0025] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the drawings only show portions relevant to the present invention, not all of them.

[0026] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0028] It is now defined that the side of the horizontal anti-pinch force measuring mechanism 100 where the collision head is installed is the front side, and the side where the pressure sensor is installed is the back side.

[0029] like Figure 1-2As shown, the present invention relates to a horizontal anti-pinch force measuring mechanism of a car sunroof, including a collision head assembly 1, a pressure sensor 2, a lifting plate 3, a vertical guide rail 4, a lifting cylinder 5, a connecting vertical plate 7, a guide slider 8 provided with a guide groove 81, a lifting plate connecting block 9, a U-shaped fixing block 14, a reinforcing column 15, a bracket 18, a bottom plate 6 and a base 19.

[0030] The collision head assembly 1 and the pressure sensor 2 are distributed on both sides of the upper end of the lifting plate 3;

[0031] The pressure sensor 2 is fixed to the inner side of the U-shaped groove 141 of the U-shaped fixing block 14, and both ends of the U-shaped fixing block 14 are fixed to the upper end of the connecting vertical plate 7 by welding or threaded connection;

[0032] The upper end of the lifting plate 3 is fixedly connected to the collision head assembly 1, and the lower end of the lifting plate 3 is located in two brackets 18, and the two brackets 18 are fixed to the connecting vertical plate 7 by screws;

[0033] There are two vertical guide rails 4, which are respectively arranged on both sides of the lifting plate 3. One side of the vertical guide rail 4 is threadedly connected to the lifting plate 3, and the other side of the vertical guide rail 4 is passed through the guide groove 81;

[0034] There are four guide slide blocks 8, two of which are symmetrically arranged between the connecting vertical plate 7 and the lifting plate 3 in the vertical direction, and one side of the guide slide block 8 is fixed on the connecting vertical plate 7;

[0035] One end of the lifting plate connecting block 9 is fixedly connected to the lifting plate 3, and the other end of the lifting plate connecting block 9 is fixed to the upper end of the lifting cylinder 5;

[0036] The lifting cylinder 5 is a pneumatic cylinder or an electric cylinder, and a pneumatic cylinder is selected in this embodiment.

[0037] The connecting plate 7 and the bottom of the lifting cylinder 5 are fixed to the bottom plate 6 by screws; two vertical reinforcement columns 15 are fixedly connected to both sides of the connecting plate 7 by screws;

[0038] The bottom plate 6 is threadedly connected to the base 19; the base 19 is fixed on the frame of the measuring device.

[0039] like Figure 3 As shown, the front three-dimensional structural diagram of the horizontal anti-pinch force measuring mechanism 100 in the measuring state, the lifting plate connecting block 9 is driven by the lifting cylinder 5 to make the lifting plate 3 and the collision head assembly 1 rise to the highest state.

[0040] like Figure 4 As shown, it is a three-dimensional structural diagram of the horizontal anti-pinch force measuring mechanism 100 installed on the measuring fixture 200, wherein the vertical arrow and the horizontal arrow represent the lifting direction 300 of the measuring mechanism and the horizontal anti-pinch force direction 400 respectively.

[0041] like Figure 5-6As shown, one end of the first guide sleeve 10 is threadedly connected to the collision head assembly 1 through the first fixed block 16, and the other end of the first guide sleeve 10 is inserted into the first connecting hole 31 on the lifting plate 3. The first guide rod 11 is movably arranged in the first guide sleeve 10, and the top of the first guide rod 11 is in contact with the pressure sensor 2; the two second guide sleeves 12 respectively pass through the second connecting holes 32 and are threadedly connected to the lifting plate 3 through the second fixed block 17, and two movable second guide rods 13 are provided in the two second guide sleeves 12, and the top ends of the two second guide rods 13 are respectively threadedly connected to the fixing plate 103 through threaded holes 106.

[0042] like Figure 7 As shown, the upper end of the connecting vertical plate 7 is provided with a transverse notch 71 and a vertical notch 72 that penetrate each other from top to bottom, the U-shaped fixing block 14, the first guide sleeve 10 and the second guide sleeve 12 are all arranged in the transverse notch 71, and the lifting plate connecting block 9 is arranged in the vertical notch 72.

[0043] like Figure 8 As shown, the collision head assembly 1 includes a strip-shaped collision head 102 with a square groove 101 on one side, a strip-shaped fixing plate 103 arranged in the groove 101, and a connecting piece 104 that movably connects the collision head 102 and the fixing plate 103; a U-shaped guide groove 105 is also provided on the other side of the collision head 102, two mounting holes for fixing the first fixing block 16 are provided in the middle of the fixing plate 103, and two threaded holes for fixing the two second guide rods 13 are symmetrically provided on both sides of the fixing plate 103. The connecting piece 104 can be a pin or a shoulder screw, and the collision head 102 can swing around the connecting piece 104 at an angle of ±5 degrees to adapt to the situation where the two sides may be out of sync during the closing process of the sunroof glass. Figure 9 As shown, a first connecting hole 31 is provided in the middle of the lifting plate 3 , and two second connecting holes 32 and two sliding grooves 33 that cooperate with the vertical guide rail 4 are symmetrically provided at both ends.

[0044] Measurement process:

[0045] The skylight product is transferred to this workstation. It is positioned in a fixed position using the positioning pillars, positioning guide supports, and guide stoppers on the measurement workpiece 200. Once the product is detected by the product arrival sensor, it is secured. Pressing the two-hand button activates the measurement equipment, and the skylight automatically opens. The horizontal anti-pinch force measurement mechanism 100, driven by the lifting cylinder 5, raises the lifting plate 3 and the collision head assembly 1. During the automatic closing process, the skylight glass contacts the collision head 102, causing it to swing slightly until the glass fully enters the guide groove 105. At this point, the glass applies vertical pressure to the collision head 102, which, through the first guide sleeve 10, applies pressure to the first guide rod 11, transmitting this pressure to the pressure sensor 2. The collision head 102 is also guided by two second guide rods 13 during its movement. The collision head 102 moves to a certain position, activating the anti-pinch function and automatically returning and opening the skylight glass. At this point, the pressure sensor 2 collects pressure data and converts it into actual values ​​via the PLC. This data is stored in the host computer's database for future retrieval and can also be saved as a curve. The horizontal anti-pinch force measuring mechanism 100 completes measuring the anti-pinch force and automatically descends after the sunroof glass is opened, and the sunroof glass automatically closes again, and the entire measuring process is completed.

[0046] The horizontal anti-pinch force measuring mechanism 100 is highly versatile and can be applied to various skylight anti-pinch force measuring devices. By slightly changing the lifting cylinder 5 from a pneumatic cylinder to an electric cylinder, different models of products can be compatible with the same device, achieving flexible production.

[0047] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A horizontal anti-pinch force measuring mechanism for a car sunroof, comprising a lifting cylinder (5), a lifting plate (3) arranged parallel to the side of the lifting cylinder (5), a pressure sensor (2) fixedly connected to the lifting plate (3), and a vertical guide rail (4); characterized in that: The invention also includes a collision head assembly (1), a first guide sleeve (10), a first guide rod (11), a guide slide block (8) provided with a guide slot (81), a lifting plate connecting block (9), and connecting the vertical plate (7) and the bottom plate (6); the collision head assembly (1) and the pressure sensor (2) are distributed on both sides of the upper end of the lifting plate (3); one end of the first guide sleeve (10) is fixedly connected to the collision head assembly (1), and the other end of the first guide sleeve (10) is inserted into the first connecting hole (31) on the lifting plate, the first guide rod (11) is movably arranged in the first guide sleeve (10), and the first The top end of the guide rod (11) is fitted with the pressure sensor (2); the guide slider (8) is arranged between the connecting vertical plate (7) and the lifting plate (3), and the guide slider (8) is fixed on the connecting vertical plate (7); one side of the vertical guide rail (4) is fixedly connected to the lifting plate (3), and the other side of the vertical guide rail (4) is passed through the guide slot (81); one end of the lifting plate connecting block (9) is fixedly connected to the lifting plate (3), and the other end of the lifting plate connecting block (9) is fixed to the upper end of the lifting cylinder (5); the connecting vertical plate (7) and the lifting cylinder (5) are both fixed on the bottom plate (6); Two second guide sleeves (12) are symmetrically provided at both ends of the lifting plate (3), and the two second guide sleeves (12) are respectively inserted into the two second connecting holes (32) at both ends of the lifting plate (3). Two movable second guide rods (13) are respectively provided in the two second guide sleeves (12), and the top ends of the two second guide rods (13) are fixedly connected to the fixed plate (103); Two guide slide blocks (8) are respectively provided on both sides of the connecting vertical plate (7) in the vertical direction; and two vertical guide rails (4) are respectively symmetrically provided on both sides of the lifting plate (3); The collision head assembly (1) comprises a collision head (102) with a groove (101) on one side, a fixing plate (103) arranged in the groove (101), and a connecting piece (104) movably connecting the collision head (102) and the fixing plate (103); a guide groove (105) is further provided on the other side of the collision head (102); the collision head (102) can swing around the connecting piece (104) at an angle of ±5 degrees to adapt to the situation where the two sides may be out of sync during the closing process of the sunroof glass; When the skylight glass is automatically closed, it contacts the collision head (102), causing the collision head (102) to swing slightly until the skylight glass completely enters the guide groove (105), thereby ensuring synchronization of both sides during the closing process of the skylight glass and ensuring that the force applied to the skylight glass and the collision head (102) during the measurement process is in a vertical direction without angular deviation, thereby improving measurement accuracy.

2. The horizontal anti-pinch force measuring mechanism for a car sunroof according to claim 1, characterized in that: A U-shaped fixing block (14) with a U-shaped groove (141) is provided on one side of the lifting plate (3), and the pressure sensor (2) is arranged in the U-shaped groove (141).

3. The horizontal anti-pinch force measuring mechanism for a car sunroof according to claim 2, characterized in that: The upper end of the connecting vertical plate (7) is provided with a transverse notch (71) and a vertical notch (72) that penetrate each other in sequence from top to bottom; the U-shaped fixing block (14), the first guide sleeve (10) and the second guide sleeve (12) are all arranged in the transverse notch (71); and the lifting plate connecting block (9) is arranged in the vertical notch (72).

4. The horizontal anti-pinch force measuring mechanism for a car sunroof according to any one of claims 1 to 3, characterized in that: Two vertical reinforcement columns (15) are fixedly connected to both sides of the connecting vertical plate (7).

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