Stud mistake-proofing assembling device

By designing a stud anti-misassembly device, which uses limit blocks and photoelectric sensors to detect the stud end, the problem of studs being installed backwards is solved, improving assembly accuracy and efficiency.

CN223989444UActive Publication Date: 2026-03-13JIANGYIN YONGXING MACHINERY MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

When screwing studs onto the engine housing, it is easy to install the studs backwards, resulting in unqualified assembly.

Method used

A stud anti-misassembly device was designed, including a base plate, a limiting block, a pressing mechanism, and a detection mechanism. The device uses a photoelectric sensor to detect the end of the stud to ensure accurate assembly of the stud.

Benefits of technology

This improves the accuracy and efficiency of stud assembly onto the housing, ensuring assembly quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a stud mistake-proof assembling device which comprises a bottom plate, a plurality of limiting blocks, a material pressing mechanism and a detection mechanism. The plurality of limiting blocks are fixed on the bottom plate, and the positions of the plurality of limiting blocks on the bottom plate are matched with a shell of a stud to be assembled; the pressing mechanism is used for fixing a shell of a stud to be assembled; the detection mechanism comprises an upper detection module and a lower detection module; each of the upper detection module and the lower detection module comprises a mounting seat and a photoelectric sensor; the two mounting seats are fixed on the bottom plate; the two photoelectric sensors are fixed to the corresponding installation bases respectively, and the output ends of the photoelectric sensors right face the side faces of the tail ends of the studs which are correctly screwed into the threaded through holes. According to the utility model, when the stud is assembled in the threaded through hole on the shell, the end part of the stud is effectively prevented from being reversely assembled, and the assembly accuracy is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of metal material processing technology, and in particular to a stud anti-misassembly device. Background Technology

[0002] like Figure 1 As shown, this is the engine housing. Bolts need to be screwed into the two threaded holes on its side, as shown. Figure 2 The diagram shows the structure of a stud. The thread lengths at both ends are unequal. When screwing two studs into two threaded through holes, the shorter end needs to be tightened. Currently, in practice, studs are frequently installed backwards, leading to substandard product quality in subsequent assembly.

[0003] Therefore, it is desirable to provide a stud anti-misalignment assembly device to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a stud anti-misassembly device, which effectively prevents the end of the stud from being installed in reverse when assembling the stud into the threaded through hole on the housing, thus ensuring the accuracy of the assembly.

[0005] To achieve the above-mentioned utility model objectives, this utility model provides a stud anti-misalignment assembly device, including a base plate, several limiting blocks, a pressing mechanism, and a detection mechanism;

[0006] Several of the limiting blocks are fixed on the base plate, and the positions of the limiting blocks on the base plate are adapted to the housing of the stud to be assembled;

[0007] The pressing mechanism is used to fix the housing of the stud to be assembled;

[0008] The testing mechanism includes an upper testing module and a lower testing module;

[0009] Both the upper detection module and the lower detection module include a mounting base and a photoelectric sensor;

[0010] The two mounting bases are fixed to the base plate;

[0011] The two photoelectric sensors are respectively fixed on their corresponding mounting bases, and the output end of the photoelectric sensor is facing the end side of the stud after it is correctly screwed into the threaded through hole.

[0012] Preferably, the base plate has locating pins vertically fixed at both the front and rear ends of the housing opposite the stud to be assembled.

[0013] Preferably, the pressing mechanism includes a side pressing module and a bottom pressing module;

[0014] The side pressure module includes a side pressure fixing seat, a cylinder, and a side pressure block;

[0015] The side pressure fixing seat is mounted on the base plate;

[0016] The cylinder is mounted on the side pressure fixing seat, and the piston rod of the cylinder is inclined and points vertically toward the side of the housing of the stud to be assembled.

[0017] The side pressure block is fixed to the end of the piston rod of the cylinder;

[0018] The pressing module includes a pressing base, a rotary lifting cylinder, and a pressing block;

[0019] The pressing fixing seat is fixed to the base plate;

[0020] The rotary lifting cylinder is mounted on the lower pressing fixed base, and the lower pressing block is fixed to the end of the piston rod of the rotary lifting cylinder.

[0021] Furthermore, a rubber layer is provided on the working surface of the side pressure block and the lower pressure block.

[0022] Preferably, both mounting bases have a vertically shaped through hole at their upper parts.

[0023] The advantages of this stud anti-misalignment assembly device compared with the prior art are as follows:

[0024] (1) By setting an upper detection module and a lower detection module on the base plate, the end of the stud can be quickly and effectively detected to ensure that it is assembled accurately, thereby improving the accuracy and efficiency of assembling the stud onto the housing.

[0025] (2) Simple structure and easy to use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the housing of the stud to be assembled in the background art;

[0027] Figure 2 This is a schematic diagram of the structure of a stud in the background art;

[0028] Figure 3 This is a schematic diagram of the structure of a stud anti-misalignment assembly device according to this embodiment;

[0029] Figure 4 This is a schematic diagram of the upper detection mechanism in this embodiment;

[0030] Figure 5 This is a schematic diagram of the working state of a stud anti-misalignment assembly device according to this embodiment. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0032] Example

[0033] like Figure 3 As shown, a stud anti-misalignment assembly device in this embodiment includes a base plate 1, several limiting blocks 2, a pressing mechanism, and a detection mechanism.

[0034] Several limiting blocks 2 are fixed on the base plate 1, and the positions of the limiting blocks 2 on the base plate 1 are adapted to the housing of the stud to be assembled, so as to effectively limit the stud.

[0035] In this embodiment, positioning pins 3 are vertically fixed at the front and rear ends of the housing opposite the stud to be assembled on the base plate 1. This arrangement facilitates quick positioning of the housing and makes it convenient to insert the stud later.

[0036] The pressing mechanism is used to fix the housing of the stud to be assembled.

[0037] In this embodiment, the pressing mechanism includes a side pressing module and a bottom pressing module.

[0038] The side pressure module includes a side pressure fixing seat 4, a cylinder 5, and a side pressure block 6; the side pressure fixing seat 4 is mounted on the base plate 1; the cylinder 5 is mounted on the side pressure fixing seat 4, and the piston rod of the cylinder 5 is inclined and vertically points to the side of the housing of the stud to be assembled; the side pressure block 6 is fixed to the end of the piston rod of the cylinder 5.

[0039] The pressing module includes a pressing fixing seat 7, a rotary lifting cylinder 8, and a pressing block 9; the pressing fixing seat 7 is fixed on the base plate 1; the rotary lifting cylinder 8 is disposed on the pressing fixing seat 7, and the pressing block 9 is fixed to the end of the piston rod of the rotary lifting cylinder 8.

[0040] With this configuration, the side pressure module and the bottom pressure module work together to effectively fix the housing after it is positioned on the base plate 1, preventing the housing from moving when the studs are screwed in, thus affecting the assembly.

[0041] In this embodiment, a rubber layer is provided on the working surface of the side pressure block 6 and the lower pressure block 9 to provide a certain buffering effect and prevent the shell from being crushed.

[0042] like Figure 4 As shown, the detection mechanism includes an upper detection module 10 and a lower detection module 11; both the upper and lower detection modules include a mounting base 12 and a photoelectric sensor 13; the two mounting bases 12 are fixed on the base plate 1; the two photoelectric sensors 13 are respectively fixed on their corresponding mounting bases 12, and the output end of the photoelectric sensor 13 faces the end side of the stud after it has been correctly screwed into the threaded through hole.

[0043] like Figure 5As shown, when assembling the studs on the housing 15, the housing is first quickly positioned on the base plate 1 using two locating pins 3. Several limiting blocks 2 on the base plate 1 effectively limit the housing. Then, the side pressure module and the downward pressure module are activated simultaneously to fix the housing. The studs are screwed into the corresponding two threaded through holes 16 on the housing. When the two studs are screwed in correctly, both photoelectric sensors detect the end side of the stud. When either photoelectric sensor fails to detect, it indicates that the end of the corresponding stud is reversed.

[0044] In this embodiment, both mounting bases 12 are vertically provided with waist-shaped through holes 14 on their upper parts. This arrangement facilitates the effective adjustment of the position of the corresponding photoelectric sensor 13 on the mounting base, ensuring the accurate position of the output end of the photoelectric sensor 13 and guaranteeing the detection accuracy.

[0045] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A stud mistake proof assembly device characterized by, The utility model relates to a screw shell assembling device, which comprises a bottom plate, a plurality of limiting blocks, a pressing mechanism and a detection mechanism. The plurality of limiting blocks are fixed on the bottom plate, and the positions of the plurality of limiting blocks on the bottom plate are matched with the shell of the screw to be assembled. The pressing mechanism is used for fixing the shell of the screw to be assembled. The detection mechanism comprises an upper detection module and a lower detection module. The upper detection module and the lower detection module each comprise a mounting seat and a photoelectric sensor. The two mounting seats are fixed on the bottom plate. The two photoelectric sensors are respectively fixed on the corresponding mounting seats, and the output end of the photoelectric sensor is opposite to the side surface of the end of the screw after being correctly screwed into the threaded hole.

2. A stud mistake proof assembly device as defined in claim 1, wherein, A positioning pin is vertically fixed on the bottom plate at positions opposite to the front end and the rear end of the shell of the screw to be assembled.

3. A stud mistake proof assembly device as defined in claim 1, wherein, The pressing mechanism comprises a side pressing module and a lower pressing module. The side pressing module comprises a side pressing fixed seat, a gas cylinder and a side pressing block. The side pressing fixed seat is arranged on the bottom plate. The gas cylinder is arranged on the side pressing fixed seat, and the piston rod of the gas cylinder is inclined and vertically directed to the side surface of the shell of the screw to be assembled. The side pressing block is fixed on the end of the piston rod of the gas cylinder. The lower pressing module comprises a lower pressing fixed seat, a rotary lifting gas cylinder and a lower pressing block. The lower pressing fixed seat is fixed on the bottom plate. The rotary lifting gas cylinder is arranged on the lower pressing fixed seat, and the lower pressing block is fixed on the end of the piston rod of the rotary lifting gas cylinder.

4. A stud mistake proof assembly device as defined in claim 3, wherein, A rubber layer is arranged on the working surface of the side pressing block and the lower pressing block.

5. A stud mistake proof assembly device as claimed in any one of claims 1 to 4, wherein, The upper part of each of the two mounting seats is vertically provided with a waist-shaped through hole.