Part detection amplifying device

Abstract

A part detection amplifying device relates to the technical field of automobile parts, and is characterized in that the height of a boss is converted into the movement distance of an amplifying end through an arranged amplifying rod, and the movement distance is multiple times of the height of the part boss, so that the lower boss height can be amplified and detected; the requirement of the sensor is reduced; meanwhile, the misjudgment rate and the equipment cost are effectively reduced; comprising a clamping and positioning mechanism, a mounting frame is arranged on one side of the clamping and positioning mechanism, an amplifying rod is rotationally connected to the mounting frame, a detection end and an amplifying end are arranged on the two sides of the connecting point of the amplifying rod and the mounting frame respectively, the length of the detection end is smaller than that of the amplifying end, and a distance sensor is further arranged on the mounting frame. And the distance sensor is arranged above the amplification end.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a parts detection and amplification device. Background Art

[0002] The threshold components of passenger cars are located below the doors and include threshold beams and threshold strips. Their main function is to enhance the sturdiness of the vehicle body and also to work with the vehicle body frame to improve the overall rigidity. The side threshold components of passenger cars are provided with flange edges with boss features formed on the flange edges. Their main function is to facilitate the matching and overlapping of parts such as the car's A-pillar, B-pillar inner panel, and car floor reinforcements. The production process of the threshold assembly is to perform pressing after rolling to process the boss. The height of the boss after processing is 1.2mm.

[0003] After the boss is machined, its height must be measured to ensure it fits snugly in the overlapped joint. Currently, after the profiling process, the robotic resistance welding station's welding fixture uses a distance sensor to detect the boss height. This directly senses the boss height. Due to the relatively low height of the boss, a high-precision distance sensor is required. For example, a small M4 distance sensor has a detection distance of 0.8 mm.

[0004] However, during actual inspection, the robot resistance welding will generate a strong electromagnetic field, which will affect the service life of the high-precision ranging sensor. In actual research, it was found that the service life of the M4 small ranging sensor will be much lower than its normal service life; at the same time, due to the influence of part size fluctuations (the boss surface profile is ±0.5mm), the boss may not meet the detection of the M4 small ranging sensor or may be misjudged, affecting normal production. Utility Model Content

[0005] 1. Technical Problems Solved

[0006] The present invention proposes a part detection and amplification device, which converts the height of the boss into the movement distance of the amplification end through a set amplification rod, where the movement distance is several times the height of the part boss. It can amplify and detect lower boss heights, reducing sensor requirements while effectively reducing the misjudgment rate and equipment costs.

[0007] 2. Specific technical solutions

[0008] A parts detection and amplification device includes a clamping and positioning mechanism, a mounting frame is provided on one side of the clamping and positioning mechanism, an amplification rod is rotatably connected to the mounting frame, and the connection point between the amplification rod and the mounting frame is flanked by a detection end and an amplification end, respectively. The length of the detection end is shorter than that of the amplification end. A distance sensor is also provided on the mounting frame, and the distance sensor is arranged above the amplification end.

[0009] Implementation principle and working principle:

[0010] In this solution, the part to be inspected is first placed on the clamping and positioning mechanism for clamping and positioning. During clamping and positioning, the boss of the part to be inspected will abut against the detection end of the amplifying rod, and the detection end will be pushed downward when the clamp is fixed or the part is placed, and the amplifying end on the other side will move upward. The movement of the detection end is the height of the boss, and the movement of the detection end will be converted several times into the movement distance of the amplifying end, so that the height of the part boss can be detected by a low-precision detector, and the detection cost is lower.

[0011] Preferably, a connecting rod is further provided on the mounting frame, and the other end of the connecting rod is folded upward to form a mounting end, and the end of the mounting end is the connection point between the amplifying rod and the mounting frame; the beneficial effect of this preferred embodiment is that through the folding design of the connecting rod, sufficient displacement space is left for the setting of the amplifying end and the distance sensor, so that the integration of the mechanism is higher and the integrity is better.

[0012] Preferably, one side of the detection end of the amplifying rod is folded downward and then folded horizontally to form a placement portion. When the amplifying rod is not rotated, the placement portion is in contact with the side where the connecting rod is connected to the mounting bracket. The beneficial effect of this preferred embodiment is that the placement portion is in contact with the side where the connecting rod is connected to the mounting bracket, which can effectively avoid direct collision between the amplifying end of the amplifying rod and the connecting rod, reduce wear and tear, and extend service life.

[0013] Preferably, the ends of the detection end and the amplifying end are both configured as rounded corners; the beneficial effect of this preference is that the rounded corners at both ends of the amplifying rod can effectively reduce the wear of the equipment and ensure accuracy during long-term use.

[0014] Preferably, the length ratio of the detection end to the amplification end is 1:5.

[0015] Preferably, the clamping and positioning mechanism includes a clamping cylinder and a base, the base is arranged on the upper part of the mounting frame, and the base cooperates with the bottom of the part to be tested, the clamping cylinder is arranged on the other side of the mounting frame, and a pressing seat is provided at one end of the clamping cylinder, and the clamping cylinder is extended and retracted to drive the pressing seat to cooperate with the base; the beneficial effect of this preferred embodiment is that when conducting inspection, the part to be inspected is placed on the base, which will push the inspection end downward, and then through the action of the clamping cylinder and the pressing seat, the boss can be quickly moved into place to ensure the accuracy of the inspection.

[0016] The beneficial effects of the utility model are:

[0017] When the workpiece to be tested is being inspected, the detection end will be pushed downward, and then the amplifying end at the other end will rotate upward. The downward movement of the short rod end is the height of the boss of the workpiece to be tested. Through the length ratio of the short rod end and the long rod end, it will be magnified several times to become the displacement of the long rod end, which is more conducive to the detection of the distance sensor and realizes amplified output. At the same time, it avoids the influence of the size fluctuation of the workpiece to be tested, and can use a sensor with lower precision. It effectively reduces the cost of the detection equipment while ensuring the accuracy of the detection, and can also avoid the situation where the boss height is within the standard but outside the detection distance of the distance sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view schematic diagram of the parts detection and amplification device of the present utility model.

[0019] Figure 2 This is an axonometric diagram of the parts detection and amplification device of the present utility model.

[0020] Description of reference numerals:

[0021] Clamping and positioning mechanism 1, mounting frame 2, amplifying rod 3, detection end 4, amplifying end 5, distance sensor 6, connecting rod 7, mounting end 8, placement part 9, clamping cylinder 10, base 11, part to be tested 12, and press-fit seat 13. DETAILED DESCRIPTION

[0022] The following detailed description of the preferred embodiments of the present invention is provided in conjunction with the accompanying drawings to make the advantages and features of the present invention more easily understood by those skilled in the art, thereby more clearly defining the scope of protection of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0023] like Figure 1 and 2 As shown:

[0024] A part inspection and amplification device includes a clamping and positioning mechanism 1, which comprises a clamping mounting frame 2, a clamping cylinder 10, and a base 11. Specifically, the base 11 is fixed to the upper portion of the mounting frame 2 by bolts. During operation, the base 11 aligns with the bottom of the part 12 to be inspected, preventing the part 12 from rocking left and right. Specifically, the clamping cylinder 10 is mounted on one side of the mounting frame 2. The piston rod end of the clamping cylinder 10 has a press seat 13. The expansion and contraction of the clamping cylinder 10 drives the press seat 13 to engage with the base 11. During inspection, the part 12 to be inspected is placed on the base 11. The part 12 to be inspected pushes the inspection end 4 downward. The clamping cylinder 10 and the press seat 13 then quickly move the boss into position, ensuring inspection accuracy.

[0025] During specific implementation, an amplifying rod 3 is rotatably connected to the other side of the mounting frame 2. The amplifying rod 3 is specifically connected in a pivotal manner, wherein the connection point between the amplifying rod 3 and the mounting frame 2 is respectively flanked by a detection end 4 and an amplifying end 5 of the amplifying rod 3, and the length of the detection end 4 is smaller than the length of the amplifying end 5; preferably, the length ratio of the detection end to the amplifying end is 1:5, which can ensure the magnification while avoiding the magnifying rod 3 and other components being too large.

[0026] During specific implementation, a connecting rod 7 is also provided on the mounting frame 2. The connecting rod 7 is used for installing the amplifying rod 3. The end of the connecting rod is folded upward to form a mounting end 8, wherein the end of the mounting end 8 is the connection point between the amplifying rod 3 and the mounting frame 2; wherein, through the folding design of the connecting rod 7, sufficient displacement space is left for the setting of the amplifying end 5 and the distance sensor 6, so that the integration of the mechanism is higher and the integrity is better; specifically, the distance sensor 6 is also installed on the mounting frame 2, and the distance sensor 6 is arranged directly above the amplifying end 5.

[0027] During implementation, one side of the detection end 4 of the amplifying rod 3 is folded downward and then folded horizontally to form a placement portion 9. When the amplifying rod 3 is not rotated, the placement portion 9 is in contact with the side where the connecting rod 7 and the mounting bracket 2 are connected; wherein, the placement portion 9 is in contact with the side where the connecting rod 7 and the mounting bracket 2 are connected, which can effectively avoid direct collision between the amplifying end 5 of the amplifying rod 3 and the connecting rod 7, reduce wear and tear, and extend service life; in order to better reduce wear and tear, the ends of the detection end 4 and the amplifying end 5 are both set to rounded corners, and the rounded corner treatment at both ends of the amplifying rod 3 can effectively reduce the wear of the equipment and ensure accuracy during long-term use.

[0028] When this solution is implemented, the part to be tested 12 is first placed on the clamping and positioning mechanism 1 for clamping and positioning. During clamping and positioning, the boss of the part to be tested 12 will abut against the detection end 4 of the amplifying rod 3, and the detection end 4 will be pushed downward when clamped or the part is placed, and the amplifying end 5 on the other side will move upward, wherein the movement amount of the detection end 4 is the boss height, and the movement amount of the detection end 4 will be converted into the movement distance of the amplifying end 5 several times, and then the boss height of the part can be detected by the low-precision distance sensor 6, and the detection cost is lower.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention shall be defined by the appended claims.

Claims

1. A parts detection and amplification device, comprising a clamping and positioning mechanism (1), characterized in that: A mounting frame (2) is provided on one side of the clamping and positioning mechanism (1), and an amplifying rod (3) is rotatably connected to the mounting frame (2). A detection end (4) and an amplifying end (5) are located on both sides of a connection point between the amplifying rod (3) and the mounting frame (2), respectively. The length of the detection end (4) is shorter than that of the amplifying end (5). A distance sensor (6) is also provided on the mounting frame (2), and the distance sensor (6) is arranged above the amplifying end (5).

2. The parts detection and amplification device according to claim 1, characterized in that: A connecting rod (7) is also provided on the mounting frame (2), and the other end of the connecting rod (7) is folded upward to form a mounting end (8), and the end of the mounting end (8) is the connection point between the amplifying rod (3) and the mounting frame (2).

3. The parts detection and amplification device according to claim 2, characterized in that: One side of the end of the magnifying end (5) of the magnifying rod (3) is folded downward and then folded horizontally to form a placement portion (9). When the magnifying rod (3) is not rotated, the placement portion (9) is in contact with the side of the connecting rod (7) connected to the mounting frame (2).

4. The parts detection and amplification device according to claim 1, characterized in that: The ends of the detection end (4) and the amplification end (5) are both configured as rounded corners.

5. The parts detection and amplification device according to claim 1, characterized in that: The length ratio of the detection end (4) to the amplification end (5) is 1:

5.

6. The parts detection and amplification device according to claim 1, characterized in that: The clamping and positioning mechanism (1) includes a clamping cylinder (10) and a base (11), wherein the base (11) is arranged on the upper part of the mounting frame (2), and the base (11) cooperates with the bottom of the part to be measured (12), and the clamping cylinder (10) is arranged on the other side of the mounting frame (2), and a pressing seat (13) is provided at one end of the clamping cylinder (10), and the clamping cylinder (10) is extended and retracted to drive the pressing seat (13) to cooperate with the base (11).

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