A checking fixture for automobile seat belt lock tongue

Abstract

The present invention relates to the field of inspection tools, and in particular to an inspection tool for an automobile seat belt tongue, the inspection tool comprising: a detection block for performing performance inspection on the automobile seat belt tongue, a thickness measuring slot and a height measuring slot provided on the detection block, the thickness measuring slot being used to perform alignment inspection on the thickness value of the automobile seat belt tongue, and the height measuring slot being used to perform alignment inspection on the height value of the automobile seat belt tongue. In the present invention, the automobile seat belt tongue is sequentially inserted into the thickness measuring slot and the height measuring slot, and whether the automobile seat belt tongue can be smoothly inserted into the thickness measuring slot and the height measuring slot is determined to determine whether the length and width of the automobile seat belt tongue meet factory requirements. By automatically inspecting the strength of the automobile seat belt tongue, the workload of the staff is reduced. At the same time, the technical requirements of the operator in the inspection process are relatively low, which helps to train more workers to engage in this process.

Description

Technical Field

[0001] The present invention relates to the technical field of inspection tools, in particular to an inspection tool for a car seat belt lock tongue. Background Art

[0002] In the car seat belt system, a crucial component is the seat belt locking tongue. The main function of this component is to firmly lock the seat belt when it is pulled out for use. The car seat belt lock tongue needs to be tested with corresponding inspection tools before leaving the factory.

[0003] Conventional testing of a car seatbelt tongue typically involves tensile testing of the tongue after it is connected to the seatbelt. Strength testing of the tongue is achieved by stretching both ends of the seatbelt. However, during this test, the seatbelt tongue may break under stress before deformation occurs, making it impossible to obtain an accurate value for the strength of the tongue. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the strength test of the automobile seat belt lock tongue is affected by the quality of the seat belt and cannot obtain an accurate value, and to propose a testing fixture for the automobile seat belt lock tongue.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A checking fixture for a car seat belt lock tongue, the checking fixture comprising:

[0007] A test block for testing the performance of a car seat belt lock tongue;

[0008] A thickness measuring slot and a height measuring slot are provided on the detection block, wherein the thickness measuring slot is used to perform alignment detection on the thickness value of the automobile seat belt lock tongue, and the height measuring slot is used to perform alignment detection on the height value of the automobile seat belt lock tongue;

[0009] A driving slider slidably mounted on the detection block;

[0010] A limit block fixedly mounted on the detection block;

[0011] A limit rod movably mounted on the driving slider, the limit rod being used to cooperate with the limit block to achieve horizontal limitation of the driving slider;

[0012] a mounting rod fixedly mounted on the driving slider;

[0013] An electric cylinder fixedly mounted on the mounting rod, wherein an output end of the electric cylinder is fixedly connected to the limiting rod;

[0014] a display panel fixedly mounted on the detection block, the display panel being used to receive and display the operating power of the electric cylinder;

[0015] A resistance ball is fixedly mounted on the lower end of the limiting rod, and the resistance ball movably resists the upper surface of the automobile safety belt lock tongue.

[0016] Preferably, the detection block is composed of a first assembly block and a second assembly block connected together, and anti-overturning blocks are fixedly connected to both sides of the detection block, and the longitudinal section of the anti-overturning block is a triangle.

[0017] Preferably, the detection block is provided with a receiving slide groove for slidingly installing the driving slider, a return spring is fixedly connected between the receiving slide groove and the driving slider, and the driving slider is provided with a movable slide groove, and a movable slider rotatably connected to the limit rod is slidably sleeved in the movable slide groove.

[0018] Preferably, a rectangular hole for slidingly fitting the limiting rod is formed on the limiting block, and a rectangular plate corresponding to the rectangular hole is fixedly connected to one end of the limiting rod away from the movable slider.

[0019] Preferably, the mounting rod is composed of a transverse section and a longitudinal section, the detection block is provided with a guide slot, and a guide slider fixedly connected to the transverse section of the mounting rod is slidably sleeved in the guide slot.

[0020] Preferably, a battery for providing energy to the electric cylinder is fixedly mounted on the mounting rod.

[0021] Preferably, a guide plate is fixedly connected to the longitudinal section of the mounting rod and is slidably connected to the output end of the electric cylinder. A resistance plate is fixedly connected to the output end of the electric cylinder. A control component is provided on the guide plate and is triggered by the resistance plate to control the closing of the electric cylinder.

[0022] Preferably, a guide sliding hole for slidingly fitting the output end of the electric cylinder is provided on the guide plate, and the contact plate is located above the guide plate.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. The present invention sequentially inserts the automobile seat belt lock tongue into the thickness measuring groove and the height measuring groove, and judges whether the length and width of the automobile seat belt lock tongue meet the factory requirements by whether the automobile seat belt lock tongue can be smoothly inserted into the thickness measuring groove and the height measuring groove. The operation is simple and helps to improve the efficiency of workers in detecting the height and thickness of the automobile seat belt lock tongue.

[0025] 2. In the present invention, the limit rod is driven downward by the electric cylinder, and the limit rod squeezes the automobile seat belt lock tongue through the resistance ball, so that the automobile seat belt lock tongue is deformed by the force, and the current operating power of the electric cylinder is displayed on the display panel. Then, after the automobile seat belt lock tongue is deformed, the force that the automobile seat belt lock tongue can withstand can be judged according to the operating power value of the electric cylinder at this time, so as to judge whether the strength of the automobile seat belt lock tongue is qualified. By automatically testing the strength of the automobile seat belt lock tongue, it is helpful to reduce the work intensity of the staff. At the same time, the technical requirements of the operator in this testing process are relatively reduced, which is helpful to train more workers to engage in this process.

[0026] 3. In the present invention, a control component is used to determine whether the electric cylinder has caused deformation of the automobile seat belt lock tongue, and the electric cylinder is stopped in time after the automobile seat belt lock tongue is deformed, thereby ensuring the accuracy of the electric cylinder action power value displayed on the display panel after the automobile seat belt lock tongue is deformed, which helps to ensure the accuracy of the automobile seat belt lock tongue strength test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the local structure of the present invention Figure 1 ;

[0029] Figure 3 It is a schematic diagram of the local structure of the present invention Figure 2 ;

[0030] Figure 4 It is a schematic diagram of the local structure of the present invention Figure 3 ;

[0031] Figure 5 Schematic diagram of the detection block structure of the present invention Figure 1 ;

[0032] Figure 6 Schematic diagram of the detection block structure of the present invention Figure 2 ;

[0033] Figure 7 For the present invention Figure 6 Schematic diagram of the cross-section structure;

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 1. Car seat belt lock tongue;

[0036] 2. Detection block; 201. First assembly block; 202. Second assembly block; 203. Anti-overturning block;

[0037] 3. Thickness measuring slot;

[0038] 4. Height measuring trough;

[0039] 5. Driving slider; 501. Accommodating chute; 502. Return spring; 503. Movable chute; 504. Movable slider;

[0040] 6. Limit block; 601. Rectangular hole;

[0041] 7. Limit rod; 701. Rectangular plate;

[0042] 8. Mounting rod; 801. Guide chute; 802. Guide slider;

[0043] 9. Electric cylinder; 901. Battery; 902. Guide plate; 903. Contact plate; 904. Control assembly;

[0044] 10. Display panel;

[0045] 11. Contact the ball. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] The present invention provides the following preferred embodiments:

[0048] Example 1

[0049] refer to Figure 6 and Figure 7 As shown, this embodiment provides a vehicle seat belt lock tongue inspection tool, the inspection tool comprising:

[0050] The detection block 2 is used to perform performance testing on the automobile seat belt lock tongue 1. The detection block 2 is composed of a first assembly block 201 and a second assembly block 202 connected together. It should be noted that: corresponding upper and lower threaded holes are opened on the first assembly block 201 and the second assembly block 202. The fixed connection between the first assembly block 201 and the second assembly block 202 is achieved by corresponding screws matching the threaded holes, which helps to ensure the stability of the connection between the first assembly block 201 and the second assembly block 202.

[0051] The thickness measuring slot 3 and the height measuring slot 4 are provided on the detection block 2. The thickness measuring slot 3 is used to align and detect the thickness value of the automobile seat belt lock tongue 1, and the height measuring slot 4 is used to align and detect the height value of the automobile seat belt lock tongue 1. It is only necessary to insert the automobile seat belt lock tongue 1 longitudinally into the thickness measuring slot 3 and insert the automobile seat belt lock tongue 1 transversely into the height measuring slot 4. The smoothness of the automobile seat belt lock tongue 1 during the insertion process can be used to judge whether the thickness and height of the automobile seat belt lock tongue 1 are qualified, thereby ensuring that the dimensions of the automobile seat belt lock tongue 1 leaving the factory are all qualified.

[0052] When using the car seat belt tongue inspection tool, follow the steps below:

[0053] Align the corners of the first assembly block 201 and the second assembly block 202. At this time, align the threaded holes on the first assembly block 201 and the second assembly block 202 vertically, and screw the screws into the threaded holes to complete the fixed connection between the first assembly block 201 and the second assembly block 202.

[0054] Align the car seat belt lock tongue 1 with the thickness measuring slot 3 so that the car seat belt lock tongue 1 enters the upper end of the thickness measuring slot 3, and slide the car seat belt lock tongue 1 downward in the thickness measuring slot 3. Judge whether the thickness of the car seat belt lock tongue 1 is qualified based on the silkiness of the car seat belt lock tongue 1 during the sliding process;

[0055] Place the car seat belt lock tongue 1 horizontally so that the car seat belt lock tongue 1 is aligned with the height measuring groove 4, and insert the car seat belt lock tongue 1 into the height measuring groove 4. Judge whether the height of the car seat belt lock tongue 1 is qualified based on the smoothness of the car seat belt lock tongue 1 during the insertion process.

[0056] Example 2

[0057] refer to Figure 5 As shown, the third embodiment of the present invention discloses a checking fixture for a car seat belt lock tongue, which has a structure basically the same as that of the first embodiment, except that the first assembly block 201 and the second assembly block 202 are connected in a manner. In order to improve the connection speed between the first assembly block 201 and the second assembly block 202, a slide groove is provided at the bottom end of the first assembly block 201, and a slider corresponding to the slide groove is provided at the top end of the second assembly block 202. The first assembly block 201 and the second assembly block 202 are provided with vertically aligned clamping holes, and a clamping rod is slidably mounted in the clamping hole, so that the operator can achieve a fixed connection between the first assembly block 201 and the second assembly block 202 without using tools.

[0058] When using the car seat belt tongue inspection tool, follow the steps below:

[0059] Push the slider on the second assembly block 202 into the slide groove on the first assembly block 201 so that the second assembly block 202 is aligned with the side of the first assembly block 201. At this time, the clamping holes on the first assembly block 201 and the second assembly block 202 are aligned up and down, and the clamping rod is inserted into the clamping hole to complete the fixed connection operation of the first assembly block 201 and the second assembly block 202.

[0060] Example 3

[0061] refer to Figure 1As shown, on the basis of the first embodiment, this embodiment introduces an anti-overturning block 203, a driving slider 5, a receiving slide 501, a return spring 502, a movable slide 503, a movable slider 504, a limit block 6, a rectangular hole 601, a limit rod 7, a rectangular plate 701, a mounting rod 8, a guide slide 801, a guide slider 802, an electric cylinder 9, a battery 901, a display panel 10 and a contact ball 11, so as to realize a strength test of a car seat belt lock tongue 1 by a testing fixture, and the implementation method is as follows:

[0062] The driving slider 5 is slidably installed on the detection block 2. The detection block 2 is provided with a receiving slot 501 for slidably installing the driving slider 5. The receiving slot 501 provides the driving slider 5 with a movable space, so that the driving slider 5 has the function of horizontal movement on the detection block 2. A return spring 502 is fixedly connected between the receiving slot 501 and the driving slider 5. The elastic force of the return spring 502 is used to make the driving slider 5 connected to the return spring 502 elastic. When the driving slider 5 is not affected by external force, it tends to move to the initial state until it is reset, thereby ensuring the reusability of the driving slider 5.

[0063] The limit block 6 is fixedly mounted on the detection block 2, and the limit rod 7 is movably mounted on the driving slider 5. The limit rod 7 is used to cooperate with the limit block 6 to realize the horizontal limit of the driving slider 5. The limit rod 7 is connected to the driving slider 5 so that the limit rod 7 has the function of horizontal movement. It should be noted that the initial position of the limit rod 7 when not affected by external force is away from the thickness measuring groove 3, thereby avoiding the limit rod 7 from causing movement interference in the process of detecting the thickness of the automobile seat belt lock tongue 1. A movable slide groove 503 is provided on the driving slider 5, and a movable slide 504 rotatably connected to the limit rod 7 is slidably mounted in the movable slide groove 503. The movable slide groove 503 provides a movable space for the movable slide 504, so that the movable slide 504 has the function of moving up and down, thereby making the limit rod 7 connected to the movable slide 504 have the function of moving up and down. At the same time, since a rectangular hole 601 for sliding the limit rod 7 is provided on the limit block 6, and the width of the rectangular hole 601 is the same as the diameter of the limit rod 7 When the cam 7 is in the upright position, the cam 710 is in the upright position, and the cam 711 is in the upright position, so that the cam 710 can rotate in the upright position without any external force.

[0064] The mounting rod 8 is fixedly mounted on the driving slider 5. The mounting rod 8 consists of a transverse section and a longitudinal section. A guide slot 801 is provided on the detection block 2. A guide slider 802 is slidably mounted in the guide slot 801 and fixedly connected to the transverse section of the mounting rod 8. The mounting rod 8 is guided and limited by the guide slot 801 and the guide slider 802, which helps to ensure the stability of the mounting rod 8 during movement.

[0065] The electric cylinder 9 is fixedly mounted on the mounting rod 8, and the output end of the electric cylinder 9 is fixedly connected to the limit rod 7. A battery 901 for providing energy for the electric cylinder 9 is fixedly mounted on the mounting rod 8. The electric cylinder 9 controls the limit rod 7 to enter a moving state or a stationary state.

[0066] The display panel 10 is fixedly mounted on the detection block 2 . The display panel 10 is used to receive and display the operating power of the electric cylinder 9 , and digitize the operating power of the electric cylinder 9 so that the operator can more clearly judge the force generated during the operation of the electric cylinder 9 .

[0067] The contact ball 11 is fixedly installed at the lower end of the limit rod 7, and the contact ball 11 movably contacts the upper surface of the car seat belt lock tongue 1. Since the end surface of the car seat belt lock tongue 1 that contacts the contact ball 11 is a curved surface, the contact ball 11 with a spherical structure is adopted, so that the contact between the contact ball 11 and the car seat belt lock tongue 1 is point contact, making the movement generated at the output end more sensitive when the electric cylinder 9 is operating.

[0068] Anti-overturning blocks 203 are fixedly connected to both sides of the detection block 2. The longitudinal section of the anti-overturning blocks 203 is triangular. The anti-overturning blocks 203 increase the contact area between the detection block 2 and the work surface, so that the car seat belt lock tongue 1 will not cause the detection block 2 to overturn when subjected to a downward force.

[0069] When using the car seat belt tongue inspection tool, follow the steps below:

[0070] The driving slider 5 is pushed, so that the driving slider 5 performs horizontal linear motion in the receiving slide groove 501 toward the installation direction of the limit block 6, and the return spring 502 is stretched. The driving slider 5 drives the installation rod 8 to perform horizontal linear motion in the installation direction of the limit block 6. The installation rod 8 drives the electric cylinder 9 to perform horizontal linear motion in the installation direction of the limit block 6. The limit rod 7 enters the rectangular hole 601, and the limit rod 7 is rotated, so that the rectangular plate 701 is in a tilted state. The driving slider 5 is released. Under the elastic force of the return spring 502, the rectangular plate 701 performs horizontal linear motion in the installation direction of the driving slider 5, so that the rectangular plate 701 and the limit block 6 are movably opposed.

[0071] Start the electric cylinder 9, which drives the limit rod 7 to move vertically downward in the rectangular hole 601. The limit rod 7 drives the movable slider 504 to move vertically downward in the movable slide groove 503. The limit rod 7 drives the contact ball 11 to squeeze the car seat belt lock tongue 1 downward, and the operating power value of the electric cylinder 9 is displayed in real time through the display panel 10. When the car seat belt lock tongue 1 is deformed, the electric cylinder 9 is stopped, and whether the strength of the car seat belt lock tongue 1 is qualified is judged by the operating power value of the electric cylinder 9 displayed on the display panel 10 at this time.

[0072] Example 4

[0073] refer to Figures 2 to 4 As shown, based on the first embodiment, this embodiment introduces a guide plate 902, a contact plate 903 and a control component 904 to achieve a higher accuracy of the strength test result of the automobile seat belt lock tongue 1; the implementation method is as follows:

[0074] A guide plate 902 is fixedly connected to the longitudinal section of the mounting rod 8 and is slidably connected to the output end of the electric cylinder 9. The guide plate 902 is provided with a guide sliding hole for slidingly fitting the output end of the electric cylinder 9. The output end of the electric cylinder 9 is fixedly connected to a contact plate 903, which is located above the guide plate 902. A control component 904 is provided on the guide plate 902 to control the closing of the electric cylinder 9 by triggering the contact plate 903. The following are various optional implementations of the control component 904:

[0075] Photoelectric sensing: A photoelectric sensor assembly is installed on the guide plate 902. When the output end of the electric cylinder 9 drives the contact plate 903 to move, the contact plate 903 will block the light path, causing the detection signal of the photoelectric sensor to change. By monitoring the change in the output signal of the photoelectric sensor, it is determined whether the car seat belt lock tongue 1 is deformed, and the electric cylinder 9 is stopped when the output signal of the photoelectric sensor changes.

[0076] Force sensitive sensor: A force sensitive sensor is installed on the guide plate 902. The top of the force sensitive sensor is movably against the bottom of the contact plate 903. When the output end of the electric cylinder 9 drives the contact plate 903 to move, the contact plate 903 will apply a force to the force sensitive sensor. By monitoring the output signal changes of the force sensitive sensor, it is determined whether the car seat belt lock tongue 1 is deformed, and the electric cylinder 9 is stopped when the output signal of the photoelectric sensor changes.

[0077] Magnetic induction: Two magnets with the same poles repelling each other are respectively provided on the guide plate 902 and the contact plate 903, and a magnetic field sensor is provided on the guide plate 902. When the output end of the electric cylinder 9 drives the contact plate 903 to move, when the distance between the two magnets changes, the magnetic field will change. By monitoring the changes in the output signal of the magnetic field sensor, it is determined whether the car seat belt lock tongue 1 is deformed, and the electric cylinder 9 is stopped when the output signal of the photoelectric sensor changes.

[0078] Through the above-mentioned various optional implementation methods of the control component 904, the electric cylinder 9 can be stopped in time when the automobile seat belt lock tongue 1 is deformed, which helps to ensure the accuracy of the data displayed on the display panel 10 at this time, thereby improving the accuracy of the strength test results of the automobile seat belt lock tongue 1.

[0079] When using the car seat belt tongue inspection tool, follow the steps below:

[0080] When the electric cylinder 9 drives the contact ball 11 to press the automobile seat belt lock tongue 1 downward through the limit rod 7, and the control component 904 drives the contact plate 903 to move at the output end of the electric cylinder 9 to control the electric cylinder 9 to stop working, the operator judges whether the strength of the automobile seat belt lock tongue 1 is qualified based on the last power value of the electric cylinder 9 recorded on the display panel 10 at this time.

[0081] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A checking fixture for a car seat belt lock tongue, characterized in that: The inspection tool comprises: A test block (2) for testing the performance of a car seat belt lock tongue (1); A thickness measuring slot (3) and a height measuring slot (4) are provided on the detection block (2), wherein the thickness measuring slot (3) is used for performing alignment detection on the thickness value of the automobile seat belt lock tongue (1), and the height measuring slot (4) is used for performing alignment detection on the height value of the automobile seat belt lock tongue (1); A driving slider (5) slidably mounted on the detection block (2); A limit block (6) fixedly mounted on the detection block (2); a limiting rod (7) movably mounted on the driving slider (5), the limiting rod (7) being used to cooperate with the limiting block (6) to achieve horizontal limiting of the driving slider (5); A mounting rod (8) fixedly mounted on the driving slider (5); an electric cylinder (9) fixedly mounted on the mounting rod (8), wherein an output end of the electric cylinder (9) is fixedly connected to the limiting rod (7); a display panel (10) fixedly mounted on the detection block (2), the display panel (10) being used to receive and display the operating power of the electric cylinder (9); A contact ball (11) is fixedly mounted on the lower end of the limiting rod (7), and the contact ball (11) movably contacts the upper surface of the automobile safety belt lock tongue (1).

2. A checking fixture for a car seat belt tongue according to claim 1, characterized in that: The detection block (2) is composed of a first assembly block (201) and a second assembly block (202) connected together, and anti-overturning blocks (203) are fixedly connected to both sides of the detection block (2), and the longitudinal section of the anti-overturning block (203) is triangular.

3. The inspection tool for automobile seat belt lock tongue according to claim 1, characterized in that: The detection block (2) is provided with a receiving slide groove (501) for slidingly installing the driving slider (5), a return spring (502) is fixedly connected between the receiving slide groove (501) and the driving slider (5), and a movable slide groove (503) is provided on the driving slider (5), and a movable slider (504) rotatably connected to the limit rod (7) is slidably sleeved in the movable slide groove (503).

4. A checking fixture for a car seat belt tongue according to claim 3, characterized in that: The limiting block (6) is provided with a rectangular hole (601) for slidingly fitting the limiting rod (7), and one end of the limiting rod (7) away from the movable slider (504) is fixedly connected to a rectangular plate (701) corresponding to the rectangular hole (601).

5. The inspection tool for automobile seat belt lock tongue according to claim 1, characterized in that: The installation rod (8) is composed of a transverse section and a longitudinal section. A guide slot (801) is provided on the detection block (2). A guide slider (802) is slidably mounted in the guide slot (801) and fixedly connected to the transverse section of the installation rod (8).

6. A checking fixture for a car seat belt tongue according to claim 5, characterized in that: A storage battery (901) for providing energy to the electric cylinder (9) is fixedly mounted on the mounting rod (8).

7. A checking fixture for a car seat belt tongue according to claim 6, characterized in that: A guide plate (902) is fixedly connected to the longitudinal section of the mounting rod (8) and is slidably connected to the output end of the electric cylinder (9). A contact plate (903) is fixedly connected to the output end of the electric cylinder (9). A control component (904) is provided on the guide plate (902) and is triggered by the contact plate (903) to control the closing of the electric cylinder (9).

8. The inspection tool for the automobile seat belt lock tongue according to claim 7, characterized in that: The guide plate (902) is provided with a guide sliding hole for slidingly fitting the output end of the electric cylinder (9), and the contact plate (903) is located above the guide plate (902).

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