Height measuring device for assembly of energy absorption box supporting block

Abstract

The utility model discloses a height measuring device for assembling an energy absorption box supporting block, which comprises a measuring part and a supporting part, and the measuring part and the supporting part are arranged on a press riveting tool; the measuring part consists of a bracket, and a measuring plate group and a displacement sensor which are arranged on the bracket; the measuring plate group consists of a touch pressing plate, a connecting plate and a measuring plate which are fixedly connected in sequence; the connecting plate is vertically arranged, is connected with the bracket through a sliding pair and can slide up and down along the bracket; the measuring plate is horizontally arranged and is matched with the displacement sensor; the touch pressing plate is horizontally arranged, the lower plate surface of the touch pressing plate is matched with the upper end surface of a to-be-tested supporting block, and the touch pressing plate touches and presses the upper end surface of the supporting block when being driven by the connecting plate to slide downwards; and the supporting block is arranged on the supporting part. According to the utility model, the supporting block can be rapidly and accurately measured before being installed in the energy absorption box, so that the installation reliability and the installation quality are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of automobile energy absorption boxes, and in particular to a height measuring device for assembling energy absorption box support blocks. Background Art

[0002] In recent years, with the vigorous development of the automobile industry, the application of aluminum energy absorption boxes in automobile collision systems has become more and more extensive. In order to strengthen the connection strength between the energy absorption box and the longitudinal beam of the automobile, it is often necessary to assemble a support block in the inner cavity of the energy absorption box. The conventional practice is to use an oil cylinder or an air cylinder to push the sawed support block profiles directly into the inner cavity of the energy absorption box for riveting assembly. The height size of the support block is not strictly controlled. Considering the height tolerance of the previous support block after sawing and the inner cavity size tolerance of the energy absorption box profile after extrusion, this design is easy to cause the support block with height inaccuracy to enter the assembly process, resulting in the support block being stuck when being fed in or the gap between the two being too large after being installed in the energy absorption box, and the support block position moving. In view of the above problems, it is necessary to design a height measurement mechanism for the assembly of the energy absorption box support block to achieve stable measurement of the support block height before the support block assembly action is carried out, to ensure the smooth assembly process, reduce the repair of later products, improve product quality and dimensional consistency, reduce equipment failure rate, and improve production stability. Utility Model Content

[0003] The utility model aims to provide a height measuring device for assembling an energy absorption box support block in view of the drawbacks of the prior art, so as to solve the problems mentioned in the background art.

[0004] The problem described in the utility model is solved by the following technical solutions:

[0005] A height measuring device for assembling an energy absorption box support block comprises a measuring part and a supporting part, wherein the measuring part and the supporting part are mounted on a riveting tool; the measuring part consists of a bracket and a measuring plate group and a displacement sensor mounted thereon; the measuring plate group consists of a touch plate, a connecting plate and a measuring plate fixedly connected in sequence; the connecting plate is vertically arranged, connected to the bracket through a sliding pair, and can slide up and down along the bracket; the measuring plate is horizontally arranged, and matches the displacement sensor; the touch plate is horizontally arranged, and its lower plate surface matches the upper end surface of the support block to be measured, and the touch plate contacts and presses the upper end surface of the support block when sliding downward driven by the connecting plate; the support block is placed on the supporting part.

[0006] The above-mentioned height measuring device for assembling the support block of the energy absorption box has a first cylinder additionally arranged on the bracket, and a piston rod of the first cylinder is connected to the touch pressure plate.

[0007] The above-mentioned energy absorption box support block is assembled with a height measuring device, and a limit pin is added to the bracket. The limit pin is horizontally arranged and located on the side of the displacement sensor to limit excessive downward pressure on the measuring plate to protect the displacement sensor.

[0008] The height measuring device for assembling the support block of the energy absorption box is also provided with a protective plate at the side of the displacement sensor to prevent foreign objects from touching the displacement sensor.

[0009] The above-mentioned height measuring device for assembling the energy absorption box support block, the support part is composed of a base frame and a wear-resistant block arranged thereon, and the upper end surface of the wear-resistant block matches the lower end surface of the support block.

[0010] The above-mentioned height measuring device for assembling the energy absorption box support block is provided with a second cylinder in the base frame, and a transition plate is connected to the piston rod of the second cylinder, and a positioning pin is provided on the transition plate; pin holes matching the positioning pins are provided on the upper plate surface of the base frame and the wear-resistant block, and the upper part of the positioning pin can movably penetrate into and out of the upper end surface of the wear-resistant block through the pin hole; the positioning pin matches the mounting hole on the support block. Beneficial Effects

[0011] Compared with the prior art, the utility model has the following advantages: by arranging a measuring part and a supporting part on the riveting tool, after placing the supporting block on the supporting part, the measuring plate group of the measuring part moves downward to measure the height of the supporting block, and the height of the supporting block is obtained by calculating the initial distance between the measuring plate and the supporting part minus the distance of the downward movement of the measuring plate. Before the supporting block is installed in the energy absorption box, it can be measured quickly and accurately to ensure the installation reliability and quality. At the same time, a limit pin and a protective plate are arranged on the measuring part to protect the displacement sensor used for measurement; the positioning pin pair on the supporting part can constrain the horizontal movement of the supporting block to prevent it from sliding on the wear-resistant block, thereby ensuring the measurement reliability and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the measuring part of the utility model;

[0015] Figure 3 This is a schematic diagram of the support structure of the utility model;

[0016] The symbols in the figure represent:

[0017] 1. Bracket, 2. Measuring plate assembly, 3. Riveting tooling, 4. Displacement sensor, 5. Support block, 6. Base frame, 1-1. Limit pin, 1-2. Protective plate, 2-1. Touch plate, 2-2. Connecting plate, 2-3. Measuring plate, 2-4. First cylinder, 6-1. Wear-resistant block, 6-2. Second cylinder, 6-3. Transition plate, 6-4. Positioning pin. DETAILED DESCRIPTION

[0018] See also Figure 1-3 The utility model includes a measuring part and a supporting part, and the measuring part and the supporting part are installed on the riveting tool 3.

[0019] The measuring part is composed of a bracket 1, a measuring plate group 2 and a displacement sensor 4 installed thereon. The bracket 1 is installed on a riveting fixture 3. The measuring plate group 2 is composed of a touch plate 2-1, a connecting plate 2-2 and a measuring plate 2-3 which are fixedly connected in sequence. The connecting plate 2-2 is vertically arranged and connected to the bracket 1 through a sliding pair, and can slide up and down along the bracket 1; the specific connection method is: a slider is arranged on the connecting plate 2-2, and a vertical guide rail matching the slider is arranged on the bracket 1, and the slider and the guide rail form a sliding pair. The support block 5 is placed on the support part.

[0020] The measuring plate 2-3 is set horizontally, and it matches the displacement sensor 4. The touch plate 2-1 is set horizontally, and its lower plate surface matches the upper end surface of the support block 5 to be measured. When the touch plate 2-1 slides downward driven by the connecting plate 2-2, it touches and presses the upper end surface of the support block 5, and the touch plate 2-1 stops moving at this time; at the same time, the measuring plate 2-3 also moves downward driven by the connecting plate 2-2. Through the cooperation of the measuring plate 2-3 and the displacement sensor 4, the height of the support block 5 can be calculated. The displacement sensor can be KEYENCE's GT2-H12F, which has high detection accuracy and can meet the needs. An elastic probe is set above this displacement sensor. During the measurement process, the measuring plate 2-3 moves downward, and after touching the elastic probe, the probe moves downward. The detection element inside the displacement sensor detects the displacement, calculates and outputs the actual displacement value, and the accurate height of the support block 5 can be calculated through this displacement value.

[0021] To realize automatic measurement, the following design can be adopted: a first cylinder 2-3 is added to the bracket 1, the piston rod of the first cylinder 2-3 is connected to the touch plate 2-1, and the cylinder 2-3 drives the touch plate 2-1 downward, which in turn drives the connecting plate 2-2 and the measuring plate 2-3 to move downward.

[0022] In order to prevent the measuring plate from moving downward excessively and to protect the displacement sensor, the following design may be adopted: a limit pin 1-1 is added to the bracket 1, the limit pin 1-1 is horizontally arranged and located on the side of the displacement sensor 4, and its height is within the stroke of the elastic probe of the displacement sensor 4 to limit the excessive downward pressure of the measuring plate 2-3, thereby protecting the displacement sensor 4.

[0023] In order to prevent the displacement sensor 4 from being damaged by an external blunt object, the following design may be adopted: a protective plate 1 - 2 is provided on the side of the displacement sensor 4 .

[0024] The support part can adopt the following scheme: the support part is composed of a base frame 6 and a wear-resistant block 6-1 arranged thereon, the upper end surface of the wear-resistant block 6-1 matches the lower end surface of the support block 5, and during measurement, the support block 5 is placed on the wear-resistant block 6-1.

[0025] In order to achieve stable placement and automatic fixation of the support block 5 on the base frame 6: a second cylinder 6-2 is arranged in the base frame 6, a transition plate 6-3 is connected to the piston rod of the second cylinder 6-2, and a positioning pin 6-4 is arranged on the transition plate 6-3.

[0026] The upper plate surface of the base frame 6 and the wear block 6-1 are provided with pin holes matching the positioning pin 6-4. The upper part of the positioning pin 6-4 passes through the pin holes on the upper plate surface of the base frame 6 and the pin holes on the wear block 6-1 in sequence, and can be movably inserted into and out of the upper end surface of the wear block 6-1; the positioning pin 6-4 matches the mounting hole on the support block 5. The positioning pin 6-4 can constrain the horizontal movement of the support block 5 to prevent it from sliding on the wear block 6-1, thereby ensuring the reliability and accuracy of the measurement.

Claims

1. A height measuring device for assembling an energy absorption box support block, characterized in that: The invention comprises a measuring part and a supporting part, wherein the measuring part and the supporting part are installed on a riveting tool (3); the measuring part comprises a bracket (1), a measuring plate group (2) and a displacement sensor (4) installed thereon; the measuring plate group (2) comprises a touch plate (2-1), a connecting plate (2-2) and a measuring plate (2-3) which are fixedly connected in sequence; the connecting plate (2-2) is arranged vertically, connected to the bracket (1) via a sliding pair, and can slide up and down along the bracket (1); the measuring plate (2-3) is arranged horizontally, and matches the displacement sensor (4); the touch plate (2-1) is arranged horizontally, and its lower plate surface matches the upper end surface of a support block (5) to be measured, and when the touch plate (2-1) slides downward driven by the connecting plate (2-2), it contacts and presses the upper end surface of the support block (5); the support block (5) is placed on the supporting part.

2. The height measuring device for assembling the energy absorption box support block according to claim 1, characterized in that: A first cylinder (2-4) is added to the bracket (1), and a piston rod of the first cylinder (2-4) is connected to the touch pressure plate (2-1).

3. The height measuring device for assembling the energy absorption box support block according to claim 1, characterized in that: A limit pin (1-1) is added to the bracket (1), and the limit pin (1-1) is arranged horizontally and located on the side of the displacement sensor (4) to limit excessive downward pressure on the measuring plate (2-3) to protect the displacement sensor (4).

4. The height measuring device for assembling the energy absorption box support block according to claim 1, characterized in that: A protective plate (1-2) is also provided on the side of the displacement sensor (4) to prevent foreign objects from contacting the displacement sensor (4).

5. The height measuring device for assembling the energy absorption box support block according to claim 1, characterized in that: The support portion is composed of a base frame (6) and a wear-resistant block (6-1) arranged thereon, and the upper end surface of the wear-resistant block (6-1) matches the lower end surface of the support block (5).

6. The height measuring device for assembling the energy absorption box support block according to claim 5, characterized in that: A second cylinder (6-2) is arranged in the base frame (6); a transition plate (6-3) is connected to the piston rod of the second cylinder (6-2); a positioning pin (6-4) is arranged on the transition plate (6-3); a pin hole matching the positioning pin (6-4) is arranged on the upper plate surface of the base frame (6) and the wear-resistant block (6-1); the upper part of the positioning pin (6-4) can movably penetrate into and out of the upper end surface of the wear-resistant block (6-1) through the pin hole; and the positioning pin (6-4) matches the mounting hole on the support block (5).

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