A device for detecting the position of a steering wheel nut

Abstract

The utility model discloses a kind of detection devices for steering wheel nut position degree, including bottom plate, the upper side middle part of the bottom plate is provided with the positioning seat for placing steering wheel nut, the upper side middle part of the positioning seat is fixedly provided with the positioning column matched with the inner hole of steering wheel nut, the outer periphery of this positioning seat is provided with 3 groups of detection devices;The detection device includes the cylinder being set on the upper side of the bottom plate, the upper side of the cylinder is provided with mounting seat, the movable end of this mounting seat is connected with cylinder and can be moved horizontally, the upper end of the mounting seat is inserted with displacement sensor, the detection end of the displacement sensor is towards positioning seat.The utility model can solve the problem that the existing steering wheel nut detection is detected by image measuring instrument, equipment cost is high, production site requirement is high, and it is not suitable for the quick detection demand of production line side.

Description

Technical Field

[0001] This utility model relates to the field of steering wheel nut detection technology, specifically a device for detecting the position of steering wheel nuts. Background Technology

[0002] During steering wheel production, the steering wheel nut must be precisely placed into the aluminum casting mold to complete the forming of the aluminum casting blank. If the nut's cut edge deviation is too large, it will cause misalignment of the steering wheel during subsequent assembly, or even prevent it from being successfully placed into the aluminum casting mold, seriously affecting production efficiency and product quality. Currently, the industry mostly uses image measuring instruments to detect the position of the steering wheel nut, but the equipment is expensive and has high requirements for the production site, making it unsuitable for the rapid detection needs at the production line. Therefore, there is an urgent need for a steering wheel nut position detection device that is simple in structure, low in cost, easy to operate, and can meet the real-time detection needs of the production line. Utility Model Content

[0003] This invention provides a device for detecting the position of steering wheel nuts, which solves the problem that existing steering wheel nut detection methods mostly use image measuring instruments, which are expensive, have high requirements for the production site, and are not suitable for the rapid detection needs at the production line.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a detection device for the position of a steering wheel nut, comprising a base plate, a positioning seat for placing the steering wheel nut is provided in the upper center of the base plate, a positioning post matching the inner hole of the steering wheel nut is fixedly provided in the upper center of the positioning seat, and three sets of detection devices are provided on the outer periphery of the positioning seat; the detection device includes a cylinder provided on the upper side of the base plate, a mounting seat is provided on the upper side of the cylinder, the mounting seat is connected to the movable end of the cylinder and can move horizontally, a displacement sensor is inserted into the upper end of the mounting seat, the detection end of the displacement sensor faces the positioning seat, the detection unit composed of the cylinder and the displacement sensor synchronously collects data from different directions to comprehensively reflect the positional deviation of the nut's cross-section, the cylinder provides power to drive the mounting seat to move horizontally, realizes the switching of the displacement sensor, and detects different positions of the nut.

[0005] As a supplement to the technical solution described in this utility model, a protective sleeve is provided on the upper part of the mounting base near the positioning base. The protective sleeve is fitted on the outer wall of the detection end of the displacement sensor, and the protective sleeve protects the sensor probe and prevents direct collision with foreign objects.

[0006] As a supplement to the technical solution described in this utility model, a plurality of positioning protrusions are fixedly provided on the outer side wall of the positioning column along the circumferential direction, and a positioning part is provided on the lower side of the positioning seat. The cross-section of the positioning part is square. The square structure at the bottom of the positioning seat cooperates with the corresponding mounting groove on the base plate to prevent the positioning seat from rotating and quickly determine the installation direction of the positioning seat.

[0007] As a supplement to the technical solution described in this utility model, the positioning seat is provided with a mounting hole on one side of the positioning column, and a positioning pin is inserted into the mounting hole. After the positioning pin is inserted into the mounting hole, its top end extends out of the surface of the positioning seat and cooperates with the process hole on the steering wheel nut to further quickly determine the installation direction of the steering wheel nut.

[0008] As a supplement to the technical solution described in this utility model, a sensing block is installed on the movable end side of the cylinder. The sensing block and the sensor work together so that when the cylinder drives the displacement sensor to the detection position, the sensing block triggers the sensor to send a signal.

[0009] As a supplement to the technical solution described in this utility model, a mounting bracket is arranged side by side on the upper side of the base plate near the cylinder. A sensor is arranged at the upper end of the mounting bracket. The two sensors maintain a precise correspondence with the sensing block to determine the two detection positions of the displacement sensor.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] It is low in cost, with the overall structure using conventional components such as cylinders and displacement sensors, resulting in low manufacturing costs; it is easy to operate, highly adaptable to the environment, and can be directly installed next to the production line. It can withstand environments such as workshop dust and vibration, and can solve the problem that the existing steering wheel nut inspection mostly uses image measuring instruments, which are expensive, have high requirements for the production site, and are not suitable for the rapid inspection needs at the production line. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a three-dimensional structural diagram of the product placement state according to this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram of the detection device of this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram of the positioning seat of this utility model;

[0016] Figure 5 This is a cross-sectional view of the displacement sensor of this utility model.

[0017] Figure label:

[0018] 1. Base plate, 2. Steering wheel nut, 3. Positioning seat, 31. Positioning pin, 32. Positioning protrusion, 33. Positioning part, 34. Mounting hole, 5. Detection device, 51. Cylinder, 52. Mounting seat, 53. Displacement sensor, 54. Protective sleeve, 6. Positioning pin, 7. Sensing block, 8. Mounting bracket, 9. Sensor. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] The embodiments of this utility model relate to a device for detecting the position of a steering wheel nut, such as... Figure 1-5 As shown, the system includes a base plate 1. A positioning seat 3 for placing a steering wheel nut 2 is located on the upper center of the base plate 1. The positioning seat 3 is connected to the base plate 1 by four bolts. A positioning pin 31 matching the inner hole of the steering wheel nut 2 is fixedly installed on the upper center of the positioning seat 3. Three sets of detection devices 5 are arranged on the outer periphery of the positioning seat 3, respectively corresponding to the side of the cross-section of the steering wheel nut 2. The detection device 5 includes a cylinder 51 located on the upper side of the base plate 1. The cylinder 51 is connected to the base plate 1 by bolts and is a roller-type precision slide cylinder. A mounting base 52 is provided on the upper side of the cylinder 51. The mounting base 52 is connected to the movable end of the cylinder 51 and can move horizontally. A displacement sensor 53 is inserted into the upper end of the mounting base 52. The detection end of the displacement sensor 53 faces the positioning seat 3. The detection unit composed of the cylinder 51 and the displacement sensor 53 collects data synchronously from different directions to comprehensively reflect the positional deviation of the cross-section of the steering wheel nut 2. The cylinder 51 provides power to drive the mounting base 52 to move horizontally, thereby switching the position of the displacement sensor 53 and detecting different positions of the steering wheel nut 2.

[0021] In this embodiment, as Figure 5 As shown, a protective sleeve 54 is provided on the upper part of the mounting base 52 near the positioning base 3. The protective sleeve 54 is fitted on the outer wall of the detection end of the displacement sensor 53. The protective sleeve 54 protects the sensor probe. The protective sleeve 54 can be made of polyurethane material, which can effectively buffer collision impact. The protective sleeve 54 and the mounting base 52 are detachably connected, which is convenient for regular maintenance.

[0022] In this embodiment, as Figure 4As shown, multiple positioning protrusions 32 are fixedly provided on the outer side wall of the positioning column 31 along the circumferential direction. A positioning part 33 is provided on the lower side of the positioning seat 3. A positioning hole matching the positioning part 33 is provided on the base plate 1. The cross-section of the positioning part 33 is square. The square structure at the bottom of the positioning seat cooperates with the corresponding mounting groove on the base plate to prevent the positioning seat 3 from rotating and quickly determine the installation direction of the positioning seat.

[0023] In this embodiment, as Figure 4 As shown, the positioning seat 3 has a mounting hole 34 on one side of the positioning post 31. A positioning pin 6 is inserted into the mounting hole 34. The positioning pin 6 and the mounting hole 34 are in transition fit. Its top end is 5mm higher than the surface of the positioning seat 3 and is adapted to the process hole of the steering wheel nut 2, so as to further quickly determine the installation direction of the steering wheel nut 2.

[0024] In this embodiment, as Figure 3 As shown, a sensing block 7 is installed on the movable end side of the cylinder 51. The sensing block 7 and the sensor 9 work together. When the cylinder 51 drives the displacement sensor 53 to the detection position, the sensing block 7 triggers the sensor 9 to send a signal.

[0025] In this embodiment, as Figure 1 As shown, a mounting bracket 8 is arranged side by side on the upper side of the base plate 1 near the cylinder 51. A sensor 9 is arranged on the upper end of the mounting bracket 8. The sensor 9 is a photoelectric sensor. When the cylinder 51 drives the displacement sensor 53 to the detection position, the sensing block 7 triggers the sensor 9. At this time, the displacement sensor 53 starts to collect data. The two sensors 9 and the sensing block 7 maintain a precise correspondence to determine the two detection positions of the displacement sensor 53.

[0026] In this embodiment, as Figure 1 As shown, the worker inserts the steering wheel nut 2 into the positioning post 31, and completes the positioning through the positioning protrusion 32 and the positioning pin 6; presses the start button, the sensing block 7 triggers the sensor 9, and the three sets of displacement sensors 53 simultaneously collect data and transmit it to the control system to complete the detection of one point. The cylinder 51 drives the displacement sensor 53 to move, and the sensing block 7 moves to the position of the second sensor 9. The three sets of displacement sensors 53 continue to collect data; the control system determines whether it is qualified based on the collected data; after the inspection is completed, the worker takes out the workpiece.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A device for detecting the position of a steering wheel nut, characterized in that include: The base plate (1) has a positioning seat (3) for placing the steering wheel nut (2) in the middle of its upper side. The positioning seat (3) has a positioning pin (31) that matches the inner hole of the steering wheel nut (2) in the middle of its upper side. The positioning seat (3) has three sets of detection devices (5) on its outer periphery. The detection device (5) includes a cylinder (51) disposed on the upper side of the base plate (1). A mounting seat (52) is disposed on the upper side of the cylinder (51). The mounting seat (52) is connected to the movable end of the cylinder (51) and can move horizontally. A displacement sensor (53) is inserted into the upper end of the mounting seat (52). The detection end of the displacement sensor (53) faces the positioning seat (3).

2. The apparatus for detecting the position of the steering wheel nut according to claim 1, wherein: A protective sleeve (54) is provided on the upper part of the mounting base (52) near the positioning base (3), and the protective sleeve (54) is fitted on the outer wall of the detection end of the displacement sensor (53).

3. The apparatus for detecting the position of the steering wheel nut according to claim 1, wherein: Multiple positioning protrusions (32) are fixedly provided on the outer side wall of the positioning column (31) along the circumferential direction, and a positioning part (33) is provided on the lower side of the positioning seat (3), and the cross-section of the positioning part (33) is square.

4. The apparatus for detecting the position of the steering wheel nut according to claim 1, wherein: The positioning seat (3) has a mounting hole (34) on one side of the positioning post (31), and a positioning pin (6) is inserted into the mounting hole (34).

5. The apparatus for detecting the position of the steering wheel nut according to claim 1, wherein: A sensor block (7) is installed on the movable end side of the cylinder (51).

6. The apparatus for detecting the position of the steering wheel nut according to claim 1, wherein: A mounting bracket (8) is arranged side by side on the upper side of the base plate (1) near the cylinder (51), and a sensor (9) is arranged on the upper end of the mounting bracket (8).

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