Test support capable of detecting three-point bending performance of B column

Abstract

The utility model relates to the technical field of B column testing supports, in particular to a testing support capable of detecting the three-point bending performance of a B column, which comprises a base, the outer wall of the base is rotatably connected with the inner wall of a supporting piece, the inner wall of the supporting piece is rotatably connected with the outer wall of a limiting piece, and the inner wall of the limiting piece is rotatably connected with the outer wall of a driving piece. Before the test B column is installed, the first sliding table and the second sliding table can slide, the distance between the first support and the second support is adjusted, the servo motor is started, the servo motor drives the bidirectional threaded rod to rotate, the bidirectional threaded rod drives the sliding blocks to slide through the thread meshing force between the bidirectional threaded rod and the threaded hole, the two sliding blocks are made to slide inwards, and then the test B column is installed. The B column is arranged on the base and slides upwards under the action of the abutting table, so that the limiting piece and the driving piece slide upwards to adjust the height of the second support, the installation condition of the B column is matched with that of a real vehicle, the installation condition of the B column on the real vehicle is effectively simulated, and convenience is brought to use of people.

Description

Technical Field

[0001] The utility model relates to the technical field of B-pillar test brackets, in particular to a test bracket capable of detecting the three-point bending performance of a B-pillar. Background Art

[0002] The B-pillar refers to the pillar extending from the roof to the bottom of the car between the front and rear seats of the cockpit. The B-pillar plays an important supporting role in the body structure. It can enhance the strength and rigidity of the body, and effectively resist the impact force from the side when the vehicle collides, protecting the safety of the passengers in the car.

[0003] Currently, most B-pillar test brackets on the market do not match the installation conditions of the actual vehicle after the B-pillar is installed on the test bracket. Relative sliding will occur between the fulcrum and the parts. In addition, during the bending process, the two ends of the B-pillar will be subjected to a tensile force, which is different from the situation of a real vehicle collision, resulting in inaccurate measurement results. Utility Model Content

[0004] The purpose of the present utility model is to provide a test bracket capable of detecting the three-point bending performance of a B-pillar, so as to resolve the problem in the background art that the B-pillar installation conditions mentioned above do not match the installation conditions on an actual vehicle. To achieve the above-mentioned purpose, the present utility model provides the following technical solution: a test bracket capable of detecting the three-point bending performance of a B-pillar, comprising a base, the outer wall of the base being rotatably connected to the inner wall of a support member, the inner wall of the support member being rotatably connected to the outer wall of a limit member, the inner wall of the limit member being rotatably connected to the outer wall of a driving member, and the outer wall of the driving member being movably abutted against the outer wall of a sliding member.

[0005] The front of the limiting member is fixedly connected to the back of the driving member by bolts. The driving member is composed of a servo motor, a bidirectional threaded rod and a sliding block. The sliding member includes a second sliding platform, a second slide rail seat, a moving platform and a limiting platform.

[0006] Preferably, the base includes a bottom plate, a limiting slide rail, a sliding platform, a slide rail seat, a mounting plate, a mounting rod and a spring, two limiting slide rails are fixedly installed on the top of the bottom plate, and two slide rail seats are fixedly installed on the bottom of the sliding platform, the inner wall of the slide rail seat is slidably connected to the outer wall of the limiting slide rail, and a mounting plate is fixedly installed on the front and back of the top of the sliding platform, two mounting holes are provided on one side of the sliding platform, and the inner wall of the mounting hole is movably plugged into the outer wall of the mounting rod near one end, the outer wall of the mounting rod is movably sleeved on the inner wall of the spring, and one side of the spring is movably abutted against one side of the sliding platform, and a limiting column is provided on the front side of the mounting plate.

[0007] Preferably, the support member consists of a support one, a test B-pillar and a support two, a rotation hole one is provided on the front and back of the bottom of the support one, and the inner wall of the rotation hole one is rotatably connected to the outer wall of the limit column one, the outer wall of the support one is fixedly connected to the inner wall of one side of the test B-pillar by bolts, and the inner wall of the other side of the test B-pillar is fixedly connected to the outer wall of the support two by bolts, and a rotation hole two is provided on the front and back of the bottom of the support two.

[0008] Preferably, the limiting member includes a support platform, a second mounting plate and a sliding frame, the front and back of the support platform are fixedly mounted with the second mounting plate, and the front of the second mounting plate is provided with a second limiting column, the outer wall of the second limiting column is rotatably connected to the inner wall of the second rotating hole, and the bottom of the support platform is fixedly connected to the top of the sliding frame, the front and back of the sliding frame are provided with support holes, and the inner wall of the sliding frame is provided with four limiting grooves.

[0009] Preferably, the back side of the servo motor is fixedly connected to the front side of the mounting plate 2 by bolts, and the output end of the servo motor is fixedly connected to one end of the front side of the bidirectional threaded rod, the outer walls at both ends of the bidirectional threaded rod are rotatably connected to the inner walls of the two support holes respectively, and the outer wall of the sliding block is slidably connected to the inner wall of the sliding frame, a threaded hole is provided on the front side of the sliding block, and the inner wall of the threaded hole is threadedly connected to the outer wall of the bidirectional threaded rod.

[0010] Preferably, two slide rail seats 2 are fixedly installed on the bottom of the sliding platform 2, and the top of the sliding platform 2 is fixedly connected to the bottom of the movable platform, the inclined surfaces on the front and back of the movable platform are movably abutted with the inclined surfaces on the bottom of the two sliding blocks respectively, and a limit platform is fixedly installed on the top near the front and back of the sliding platform 2, the outer wall of the limit platform is slidably connected to the inner wall of the sliding frame, and limit blocks are provided on both sides of the limit platform, the outer wall of the limit block is slidably connected to the inner wall of the limit groove, and one side of the sliding platform 2 is movably abutted against one side of the spring, and two mounting holes 2 are provided on one side of the sliding platform 2, and the inner wall of the mounting hole 2 is movably plugged into the outer wall of the mounting rod away from the sliding platform.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, before installing and testing the B-pillar, the sliding platform one and the sliding platform two can be slid to adjust the distance between the support one and the support two, and the servo motor can be started. The servo motor drives the bidirectional threaded rod to rotate, and the bidirectional threaded rod drives the sliding block to slide through the threaded engagement force with the threaded hole, so that the two sliding blocks slide inward and slide upward under the action of the abutment platform, so that the limit part and the driving part slide upward to adjust the height of the support two, so that the installation condition of the B-pillar matches the actual vehicle, effectively simulates the installation condition of the B-pillar on the actual vehicle, and brings convenience to people's use.

[0013] In the present invention, after the support frame is adjusted, the two ends of the test B-pillar are fixed to support one and support two by bolts respectively, so that the B-pillar is completely fitted with the support. When the B-pillar is tested, the B-pillar is bent to cause support one and support two to slide, and the spring provides resistance to the sliding of support one and support two. The movement resistance of the sliding platform can be adjusted by replacing the spring, which effectively simulates the situation of the B-pillar colliding on the real car and brings convenience to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is an exploded view of the utility model;

[0017] Figure 4 This is an exploded view of the present invention.

[0018] In the figure: 1. Base; 101. Bottom plate; 102. Limiting slide rail; 103. Sliding table 1; 104. Slide rail seat 1; 105. Mounting plate 1; 106. Mounting rod; 107. Spring; 2. Support member; 201. Support seat 1; 202. Test B-pillar; 203. Support seat 2; 3. Limiting member; 301. Support table; 302. Mounting plate 2; 303. Sliding frame; 4. Driving member; 401. Servo motor; 402. Bidirectional threaded rod; 403. Sliding block; 5. Sliding member; 501. Sliding table 2; 502. Slide rail seat 2; 503. Abutment table; 504. Limiting table. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0020] See also Figures 1 to 4 The utility model provides a technical solution: a test bracket for detecting the three-point bending performance of the B-pillar, comprising a base 1, the outer wall of the base 1 is rotatably connected to the inner wall of the support member 2, the inner wall of the support member 2 is rotatably connected to the outer wall of the limit member 3, the inner wall of the limit member 3 is rotatably connected to the outer wall of the driving member 4, and the outer wall of the driving member 4 is movably abutted against the outer wall of the sliding member 5.

[0021] The front of the limiting member 3 is fixedly connected to the back of the driving member 4 by bolts. The driving member 4 is composed of a servo motor 401, a bidirectional threaded rod 402 and a sliding block 403. The sliding member 5 includes a sliding platform 2 501, a sliding rail seat 2 502, a moving platform 503 and a limiting platform 504.

[0022] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the base 1 includes a bottom plate 101, a limiting slide rail 102, a sliding platform 103, a slide rail seat 104, a mounting plate 105, a mounting rod 106 and a spring 107. Two limiting slide rails 102 are fixedly installed on the top of the bottom plate 101, and two slide rail seats 104 are fixedly installed on the bottom of the sliding platform 103. The inner wall of the slide rail seat 104 is slidably connected to the outer wall of the limiting slide rail 102, and the front and back sides of the top of the sliding platform 103 are fixedly installed with a mounting plate 105. Two mounting holes 1 are provided on one side of the sliding platform 103, and the inner wall of the mounting hole 1 is movably plugged into the outer wall of the mounting rod 106 near one end. The outer wall of the mounting rod 106 is movably sleeved with the inner wall of the spring 107, and one side of the spring 107 is movably abutted against one side of the sliding platform 103. A limiting column 1 is provided on the front side of the mounting plate 105.

[0023] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the support member 2 is composed of a support 1 201, a test B-pillar 202 and a support 2 203. A rotation hole 1 is provided on the front and back of the bottom of the support 1 201, and the inner wall of the rotation hole 1 is rotatably connected to the outer wall of the limit column 1. The outer wall of the support 1 201 is fixedly connected to the inner wall of one side of the test B-pillar 202 by bolts, and the inner wall of the other side of the test B-pillar 202 is fixedly connected to the outer wall of the support 2 203 by bolts. A rotation hole 2 is provided on the front and back of the bottom of the support 2 203.

[0024] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the limiting member 3 includes a support platform 301, a second mounting plate 302 and a sliding frame 303. The front and back sides of the support platform 301 are fixedly mounted with the second mounting plate 302, and the front side of the mounting plate 302 is provided with a second limiting column. The outer wall of the second limiting column is rotatably connected to the inner wall of the second rotating hole, and the bottom of the support platform 301 is fixedly connected to the top of the sliding frame 303. The front and back sides of the sliding frame 303 are provided with support holes, and the inner wall of the sliding frame 303 is provided with four limiting grooves.

[0025] In this embodiment, Figure 1、 Figure 2 、 Figure 3 and Figure 4 As shown, the back of the servo motor 401 is fixedly connected to the front of the mounting plate 302 by bolts, and the output end of the servo motor 401 is fixedly connected to one end of the front of the bidirectional threaded rod 402, the outer walls of the two ends of the bidirectional threaded rod 402 are rotatably connected to the inner walls of the two support holes respectively, and the outer wall of the sliding block 403 is slidably connected to the inner wall of the sliding frame 303, a threaded hole is opened on the front of the sliding block 403, and the inner wall of the threaded hole is threadedly connected to the outer wall of the bidirectional threaded rod 402.

[0026] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, two slide rail seats 502 are fixedly installed on the bottom of the sliding platform 501, and the top of the sliding platform 501 is fixedly connected to the bottom of the movable platform 503, and the inclined surfaces on the front and back of the movable platform 503 are movably abutted against the inclined surfaces on the bottom of the two sliding blocks 403 respectively, and the top of the sliding platform 501 near the front and back is fixedly installed with a limit platform 504, the outer wall of the limit platform 504 is slidably connected to the inner wall of the sliding frame 303, and limit blocks are provided on both sides of the limit platform 504, the outer wall of the limit block is slidably connected to the inner wall of the limit groove, and one side of the sliding platform 501 is movably abutted against one side of the spring 107, and two mounting holes 2 are provided on one side of the sliding platform 501, and the inner wall of the mounting hole 2 is movably plugged into the outer wall of the mounting rod 106 away from the end of the sliding platform 1 103.

[0027] The use method and advantages of this utility model: When the test bracket capable of detecting the three-point bending performance of the B-pillar is in operation, the working process is as follows:

[0028] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, before installing the test B-pillar 202, the sliding platform 103 and the sliding platform 2 501 can be slid to adjust the distance between the support 1 201 and the support 2 203, and the servo motor 401 is started. The servo motor 401 drives the bidirectional threaded rod 402 to rotate, and the bidirectional threaded rod 402 drives the sliding block 403 to slide through the threaded engagement force with the threaded hole, so that the two sliding blocks 403 slide inward and slide upward under the action of the abutting platform 503, so that the limit member 3 and the driving member 4 slide upward to the support 2 203. The height is adjusted so that the support frame matches the state of the actual vehicle. After the support frame is adjusted, the two ends of the test B-pillar 202 are fixed to the support 1 201 and the support 2 203 by bolts respectively, so that the B-pillar and the support are completely fitted. When testing the B-pillar, the B-pillar bends to make the support 1 201 and the support 2 203 slide, and the spring 107 provides resistance to the sliding of the support 1 201 and the support 2 203. The moving resistance of the sliding table can be adjusted by replacing the spring 107, which effectively simulates the situation of a real vehicle collision.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A test stand for detecting the three-point bending performance of a B-pillar, comprising a base (1), characterized in that: The outer wall of the base (1) is rotatably connected to the inner wall of the support member (2), the inner wall of the support member (2) is rotatably connected to the outer wall of the limiting member (3), the inner wall of the limiting member (3) is rotatably connected to the outer wall of the driving member (4), and the outer wall of the driving member (4) is movably abutted against the outer wall of the sliding member (5); The front side of the position-limiting member (3) is fixedly connected to the back side of the driving member (4) by means of bolts. The driving member (4) is composed of a servo motor (401), a bidirectional threaded rod (402) and a sliding block (403). The sliding member (5) comprises a second sliding platform (501), a second slide rail seat (502), an abutting platform (503) and a position-limiting platform (504).

2. The test stand for detecting the three-point bending performance of a B-pillar according to claim 1, characterized in that: The base (1) includes a bottom plate (101), a limiting slide rail (102), a sliding platform (103), a slide rail seat (104), a mounting plate (105), a mounting rod (106) and a spring (107); two limiting slide rails (102) are fixedly mounted on the top of the bottom plate (101), and two slide rail seats (104) are fixedly mounted on the bottom of the sliding platform (103); the inner wall of the slide rail seat (104) is slidably connected to the outer wall of the limiting slide rail (102), and A mounting plate (105) is fixedly mounted on the front and back of the top of the sliding platform (103). Two mounting holes (1) are provided on one side of the sliding platform (103). The inner wall of the mounting hole (1) is movably connected to the outer wall of the mounting rod (106) near one end. The outer wall of the mounting rod (106) is movably connected to the inner wall of the spring (107), and one side of the spring (107) is movably connected to one side of the sliding platform (103). A limiting column (1) is provided on the front of the mounting plate (105).

3. The test stand for detecting the three-point bending performance of a B-pillar according to claim 2, characterized in that: The support member (2) is composed of a support 1 (201), a test B-pillar (202) and a support 2 (203), the front and back sides of the bottom of the support 1 (201) are both provided with a rotation hole 1, and the inner wall of the rotation hole 1 is rotatably connected to the outer wall of the limit column 1, the outer wall of the support 1 (201) is fixedly connected to the inner wall of one side of the test B-pillar (202) by bolts, and the inner wall of the other side of the test B-pillar (202) is fixedly connected to the outer wall of the support 2 (203) by bolts, and the front and back sides of the bottom of the support 2 (203) are both provided with a rotation hole 2.

4. The test stand for detecting the three-point bending performance of a B-pillar according to claim 3, characterized in that: The limiting member (3) comprises a support platform (301), a second mounting plate (302) and a sliding frame (303); the front and back sides of the support platform (301) are fixedly mounted with the second mounting plate (302); the front side of the second mounting plate (302) is provided with a second limiting column; the outer wall of the second limiting column is rotatably connected to the inner wall of the second rotating hole; the bottom of the support platform (301) is fixedly connected to the top of the sliding frame (303); the front and back sides of the sliding frame (303) are provided with support holes; and the inner wall of the sliding frame (303) is provided with four limiting slots.

5. The test stand for detecting the three-point bending performance of a B-pillar according to claim 4, characterized in that: The back of the servo motor (401) is fixedly connected to the front of the second mounting plate (302) by means of bolts, and the output end of the servo motor (401) is fixedly connected to one end of the front of the bidirectional threaded rod (402), the outer walls of both ends of the bidirectional threaded rod (402) are rotatably connected to the inner walls of the two support holes, and the outer wall of the sliding block (403) is slidably connected to the inner wall of the sliding frame (303), a threaded hole is provided on the front of the sliding block (403), and the inner wall of the threaded hole is threadedly connected to the outer wall of the bidirectional threaded rod (402).

6. The test stand for detecting the three-point bending performance of a B-pillar according to claim 5, characterized in that: The bottom of the sliding platform 2 (501) is fixedly installed with two slide rail seats 2 (502), and the top of the sliding platform 2 (501) is fixedly connected to the bottom of the abutting platform (503), the inclined surfaces of the front and back sides of the abutting platform (503) are respectively movably abutted with the inclined surfaces of the bottom sides of the two sliding blocks (403), and the top of the sliding platform 2 (501) near the front and back sides are fixedly installed with a limiting platform (504), the outer wall of the limiting platform (504) is slidably connected to the inner wall of the sliding frame (303), and limiting blocks are provided on both sides of the limiting platform (504), the outer wall of the limiting block is slidably connected to the inner wall of the limiting groove, and one side of the sliding platform 2 (501) is movably abutted with one side of the spring (107), and two mounting holes 2 are provided on one side of the sliding platform 2 (501), and the inner wall of the mounting hole 2 is movably plugged into the outer wall of the mounting rod (106) away from one end of the sliding platform 1 (103).

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