Space-saving error-proofing detection mechanism

Abstract

The utility model discloses a space-saving error-proofing detection mechanism which is used for detecting a rear end plate limiting support to be installed on an automobile rear end plate assembly. The mistake-proof detection mechanism comprises a micro pneumatic cylinder, a proximity sensor, a proximity sensor detection rod assembly, a rear end plate limiting bracket limiting and positioning mechanism and a mistake-proof detection mechanism propelling cylinder; a mistake-proofing detection mechanism propelling cylinder is installed on an automobile rear end plate assembly machining tool plate through a supporting block, a propelling block assembly is installed at the propelling end of the mistake-proofing detection mechanism propelling cylinder, a proximity sensor is installed on a horizontal block of the propelling block assembly, and a proximity sensor detection rod assembly is installed on a vertical block of the propelling block assembly. A micro pneumatic cylinder is mounted at the upper part of the vertical block; a vertical block of the pushing block assembly is provided with a rear end plate limiting support limiting and positioning mechanism matched with the rear end plate limiting support in shape. According to the utility model, effective error correction can be realized, and the precision of the mounting position of the rear end plate limiting bracket is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile accessory processing equipment, especially to a space-saving mistake-proof detection mechanism. BACKGROUND

[0002] The machining tool of the automobile rear end plate assembly needs to correct the position of the parts in time when machining the rear end plate assembly, and the machining tool of the existing automobile rear end plate assembly cannot better install the corresponding correction structure due to the narrow internal space after installing the automobile rear end plate to be machined. SUMMARY

[0003] The utility model aims at solving the above technical problem, provides a space-saving mistake-proof detection mechanism, which can avoid the mistaken start of the welding system when the rear end plate limiting support of the automobile rear end plate assembly is not installed in place.

[0004] To solve the above technical problem, the utility model provides a space-saving mistake-proof detection mechanism, which is used for detecting the rear end plate limiting support to be installed on the automobile rear end plate assembly, and the mistake-proof detection mechanism comprises: a miniature pneumatic cylinder, a proximity sensor, a proximity sensor detection rod assembly, a rear end plate limiting support limiting positioning mechanism and a mistake-proof detection mechanism advancing cylinder.

[0005] The mistake-proof detection mechanism advancing cylinder is installed on the automobile rear end plate assembly machining tool plate through a supporting block, the advancing end of the mistake-proof detection mechanism advancing cylinder is installed with a advancing block assembly, the horizontal block of the advancing block assembly is installed with a proximity sensor, the vertical vertical block of the advancing block assembly is installed with a proximity sensor detection rod assembly, and the miniature pneumatic cylinder is installed on the upper part of the vertical vertical block.

[0006] The vertical vertical block of the advancing block assembly is provided with a rear end plate limiting support limiting positioning mechanism matched with the outer shape of the rear end plate limiting support.

[0007] The mistake-proof detection mechanism is connected to the control module, so as to obtain the corresponding signal of the mistake-proof detection mechanism to decide whether to start the welding system of the automobile rear end plate assembly machining tool.

[0008] Further, the advancing block assembly comprises:

[0009] A first L-shaped block connected to the mistake-proof detection mechanism advancing cylinder;

[0010] A second L-shaped block connected to the first L-shaped block;

[0011] The corner block composed of the horizontal block and a vertical vertical block perpendicular to the horizontal block is connected to the second L-shaped block.

[0012] Further, the rear end plate limiting support limiting positioning mechanism comprises:

[0013] A first L-shaped positioning block installed on the top of the vertical upright block of the propulsion block assembly, the bottom of which abuts against the upper edge of the rear end plate limiting support;

[0014] A convex-shaped positioning block symmetrically arranged on the two side faces of the vertical upright block of the propulsion block assembly, which abuts against the outer side face of the rear end plate limiting support.

[0015] Further, the first L-shaped positioning block is provided with a nut detection device for detecting the installation nut of the rear end plate limiting support.

[0016] Further, the control module is a PLC.

[0017] The utility model has the advantages that: the utility model can detect and judge the position of the rear end plate limiting support and whether the automobile rear end plate assembly has parts (namely the rear end plate limiting support) in a narrow space, can effectively correct errors (preventing errors is to prevent the rear end plate limiting support from being welded without installation or in a wrong position), and greatly improves the accuracy of the installation position of the rear end plate limiting support. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective view of the rear end plate limiting support installed on the automobile rear end plate assembly.

[0019] Figure 2 A cooperation effect diagram of the space-saving error-proof detection mechanism and the automobile rear end plate assembly, in which other structures of the automobile rear end plate assembly processing tooling are omitted.

[0020] Figure 3 A perspective view of the rear end plate limiting support.

[0021] Figure 4 A local enlarged view of the space-saving error-proof detection mechanism.

[0022] Figure 5 Another local enlarged view of the space-saving error-proof detection mechanism in another direction.

[0023] Figure 6 A perspective view of the propulsion block assembly.

[0024] Figure 7 A perspective view of the rear end plate limiting support limiting and positioning mechanism.

[0025] Figure 8 An inside structure schematic view of the vertical upright block of the propulsion block assembly.

[0026] Figure 9 A local enlarged view of the proximity sensor detection rod assembly. DETAILED DESCRIPTION

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] Example 1: Figure 1 A 3D view of the rear end plate limiting bracket installed on the automotive rear end plate assembly is provided. Figure 2 The structural diagram of the rear end plate limiting bracket is given. An embodiment of this utility model provides a space-saving error-proofing detection mechanism (hereinafter referred to as "error-proofing detection mechanism"), see [link to documentation]. Figures 3-7 The error-proofing detection mechanism is used to detect the rear end plate limiting bracket 4 to be installed on the rear end plate assembly P of the automobile. The error-proofing detection mechanism includes: a miniature pneumatic cylinder 1, a proximity sensor 2, a proximity sensor detection rod assembly 3, a rear end plate limiting bracket limiting and positioning mechanism 5, and an error-proofing detection mechanism propulsion cylinder 6. Figure 3 The document describes a rear end plate limiting bracket 4, with a mounting nut 9 arranged inside the web hole of the rear end plate limiting bracket 4. This error-proofing detection mechanism aims to prevent the welding system from being started when the rear end plate assembly is not equipped with the rear end plate limiting bracket 4 and the mounting nut 9. The welding system of the automotive rear end plate assembly machining fixture can only be started when the above-mentioned parts are in place. The welding system of the automotive rear end plate assembly machining fixture is not within the scope of this error-proofing detection mechanism and will not be described in detail here.

[0029] See Figures 4-5 The error-proofing detection mechanism push cylinder 6 is mounted on the automotive rear end plate assembly machining tooling plate via support block 7. The push cylinder 6 pushes the entire error-proofing detection mechanism to the installation position of the rear end plate limit bracket on the automotive rear end plate assembly. If the rear end plate limit bracket is not detected at the preset installation position, the corresponding welding action will not be initiated; otherwise, the welding action will be initiated. A push block assembly 8 is installed at the push end of the error-proofing detection mechanism push cylinder 6. A proximity sensor 2 is installed on the horizontal block 8c-2 of the push block assembly 8, and a proximity sensor detection rod assembly 3 is installed on the vertical block 8c-1 of the push block assembly 8. The sliding action of the sliding detection rod 3a within the proximity sensor detection rod assembly can be achieved by motor drive, cylinder drive, spring drive, or other methods. (See [reference]). Figure 9, the sleeve 3b of the proximity sensor detection rod assembly is installed with a reset spring, the sliding detection rod 3a is installed at the reset spring in the sleeve, in the state that the reset spring is not compressed, the sliding detection rod 3a is pressed through the web hole of the rear end plate limiting support 4, at this time, the proximity sensor 2 cannot sense the sliding detection rod 3a, in the case that the mounting nut 9 is arranged at the web hole of the rear end plate limiting support 4, the front end of the sliding detection rod is pressed on the mounting nut, so that the reset spring is in the compressed state, at this time, the tail end of the sliding detection rod 3a is continuously detected by the proximity sensor 2, at this time, the proximity sensor 2 gives a signal to the control module that the mounting nut has been arranged in place, and the micro pneumatic cylinder 1 is installed on the upper part of the vertical stand 8c-1. It should be pointed out that when the proximity sensor detection rod assembly 3 is not installed in place at the mounting nut 9 of the rear end plate limiting support 4, the sliding detection rod 3a of the proximity sensor detection rod assembly 3 can smoothly pass through the web hole of the rear end plate limiting support 4, so that the sliding detection rod 3a of the proximity sensor detection rod assembly 3 cannot cooperate with the proximity sensor 2, so that the control module can obtain the signal that the mounting nut 9 is not in place, and the welding system cannot be started to perform subsequent welding work, in the case that the mounting nut is in place, the sliding detection rod 3a cannot pass through the web hole of the rear end plate limiting support 4, at this time, the sliding detection rod 3a is continuously detected by the proximity sensor 2, at this time, the control module (such as PLC) obtains the signal that the mounting nut has been installed in place.

[0030] Referring to Figure 6 , the advancing block assembly includes a first L-shaped block 8a connected to the error-proof detection mechanism advancing cylinder 6; a second L-shaped block 8b connected to the first L-shaped block; and a corner block 8c composed of a horizontal block 8c-2 and a vertical stand 8c-1 perpendicular to the horizontal block 8c-2, the vertical stand 8c-1 is provided with a sleeve assembly hole for installing the sleeve of the proximity sensor detection rod assembly, through the above structure, the advancing block assembly can be effectively formed to meet the installation requirements of the corresponding structure.

[0031] The vertical stand 8c-1 of the advancing block assembly 8 is provided with a rear end plate limiting support limiting and positioning mechanism 5 matched with the shape of the rear end plate limiting support 4. Referring to Figure 7 , the rear end plate limiting support limiting and positioning mechanism 5 includes a first L-shaped positioning block 5a installed on the top of the vertical stand 8c-1 of the advancing block assembly 8, the bottom of the first L-shaped positioning block 5a abuts against the upper edge 4a of the rear end plate limiting support; and a convex-shaped positioning block 5b symmetrically arranged on the two sides of the vertical stand 8c-1 of the advancing block assembly 8, the convex-shaped positioning block 5b abuts against the outer side 4b of the rear end plate limiting support, limiting the left and right directions of the rear end plate limiting support 4.

[0032] Continuing to refer to Figure 7, the first L-shaped positioning block 5a is provided with a nut detection device 10 for detecting the installation nut 9 of the rear end plate limiting support 4, and the nut detection device 10 includes but is not limited to an infrared detection device, which detects by means of an infrared light beam on the detection nut.

[0033] Figure 8 The state shown is that the rear end plate limiting support 4 is not arranged in place, and the sliding rod 1a of the micro pneumatic cylinder 1 can smoothly enter the rear end plate limiting support 4 installation space of the automobile rear end plate assembly, and vice versa (in the case that the rear end plate limiting support 4 is in place, the sliding rod 1a will be blocked by the web of the rear end plate limiting support 4 and cannot advance into the rear end plate limiting support 4 installation space of the automobile rear end plate assembly).

[0034] The working principle of the utility model is as follows: the micro pneumatic cylinder 1 is used as a pneumatic detection mechanism, and through external ventilation, the sliding rod in the micro pneumatic cylinder 1 is pushed forward and backward (i.e. Figure 8 The vertical stand of the sliding rod 1a of the push block assembly has a first opening 8c-1a matched therewith, so as to meet the action requirement of the sliding rod 1a), so as to detect the position of the rear end plate limiting support 4, and when the rear end plate limiting support 4 has been arranged in place in the automobile rear end plate assembly, the sliding rod 1a cannot pass through the first opening 8c-1a, at this time, the rear end plate limiting support 4 has been arranged in place. Figure 1 In the case that the cylinder of the micro pneumatic cylinder 1 is in the ventilation state, the rear end plate limiting support 4 cannot be installed to the preset position of the automobile rear end plate assembly (i.e.

[0035] When the sliding rod 1a of the micro pneumatic cylinder cannot advance, the control module is given a signal that the rear end plate limiting support 4 has been arranged in place, and when the position sensor can continuously detect the sliding detection rod, the control module (such as PLC) is given a signal that the installation nut has been arranged in place, at this time, the control module can notify the corresponding welding system to start the welding work.

[0036] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the utility model, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the utility model.

Claims

1. A space-saving error-proofing detection mechanism, used for detecting a rear end plate limiting bracket to be installed on a vehicle rear end plate assembly, characterized in that, The error-proofing detection mechanism includes: a miniature pneumatic cylinder, a proximity sensor, a proximity sensor detection rod assembly, a rear end plate limit bracket limit positioning mechanism, and an error-proofing detection mechanism push cylinder. The error-proofing detection mechanism's propulsion cylinder is mounted on the automotive rear panel assembly machining tooling plate via a support block. A propulsion block assembly is installed at the propulsion end of the error-proofing detection mechanism's propulsion cylinder. The proximity sensor is installed on the horizontal block of the propulsion block assembly, and the proximity sensor detection rod assembly is installed on the vertical block of the propulsion block assembly. The miniature pneumatic cylinder is installed on the upper part of the vertical block. The vertical block of the propulsion block assembly is provided with a rear end plate limiting bracket limiting and positioning mechanism that matches the shape of the rear end plate limiting bracket. The error-proofing detection mechanism is connected to the control module.

2. The space-saving error-proofing detection mechanism according to claim 1, characterized in that, The propulsion block assembly includes: The first L-shaped block connected to the propulsion cylinder of the error-proofing detection mechanism; The second L-shaped block is connected to the first L-shaped block; The corner block, consisting of a horizontal block and a vertical block perpendicular to the horizontal block, is connected to the second L-shaped block.

3. The space-saving error-proofing detection mechanism according to claim 1, characterized in that, The rear end plate limiting bracket limiting and positioning mechanism includes: The first L-shaped positioning block installed on the top of the vertical block of the propulsion block assembly has its bottom abutting against the upper edge of the rear end plate limiting bracket; The convex-shaped positioning blocks, symmetrically arranged on both sides of the vertical block of the propulsion block assembly, abut against the outer side of the rear end plate limiting bracket.

4. The space-saving error-proofing detection mechanism according to claim 3, characterized in that, A nut detection device (10) for detecting the mounting nuts of the rear end plate limit bracket is provided at the first L-shaped positioning block.

5. The space-saving error-proofing detection mechanism according to claim 1, characterized in that, The control module is a PLC.

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