Detection mechanism for metal plate tooth hole

Abstract

The utility model relates to the field of sheet metal processing equipment, in particular to a detection mechanism for sheet metal tooth holes, which comprises a lifting cylinder. A support is arranged on a telescopic rod of the lifting air cylinder and is of a Z-shaped mechanism, and a detection assembly is arranged at the other end of the support. The detection assembly comprises a shell, a probe is arranged in the shell, a detection groove is formed in the top end of the probe, a top block is arranged in the middle of the probe, the lower portion of the probe is sleeved with a compression spring, a permanent magnet is arranged at the lower end of the probe, and a magnetic switch is arranged on the outer side of the bottom in the shell. The metal plate tooth hole detection device has the advantages that the lifting air cylinder, the probe, the compression spring, the permanent magnet and the magnetic switch are arranged, the lifting air cylinder drives the probe to ascend and descend through the support, when the probe detects a qualified metal plate tooth hole, the permanent magnet is driven to make contact with the magnetic switch, and therefore it is judged that the metal plate tooth hole is qualified.

Description

Technical Field

[0001] The utility model relates to the field of sheet metal processing equipment, in particular to a detection mechanism for sheet metal tooth holes. Background Art

[0002] Sheet metal products are very common in daily life and are also widely used in industrial production. Through processes such as stamping, shearing, bending and buckling, bending and forming, welding, and riveting, sheet metal can be made into castings, forgings, machined parts, etc. According to different needs, the processing technology of sheet metal products is also different. When sheet metal products need to undergo a riveting process, the reserved holes of the sheet metal products need to be tapped in advance. After tapping, the reserved holes become threaded holes. In order to improve the quality of sheet metal products and customer satisfaction, it is necessary to check whether the reserved holes of sheet metal products after the tapping process have any problems with tapping to eliminate defective products.

[0003] However, the existing inspection method mainly relies on manual observation to check the holes of the sheet metal products after tapping one by one. The inspection is difficult, resulting in slow manual inspection and low accuracy, which in turn reduces the efficiency of use. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model provides a technical solution that can solve the above-mentioned problems.

[0005] A detection mechanism for sheet metal thread holes, comprising a lifting cylinder;

[0006] A bracket is provided on the telescopic rod of the lifting cylinder. The bracket is a Z-shaped mechanism, and a detection component is provided at the other end of the bracket;

[0007] The detection assembly includes a housing, a probe is provided inside the housing, the upper portion of the probe passes upward through the housing, a detection slot is formed at the top end of the probe, a top block is provided in the middle of the probe, the top block is in contact with the inner upper portion of the housing, and a compression spring is provided at the lower portion of the probe, the two ends of the compression spring are in contact with the top block and the housing respectively;

[0008] A permanent magnet is provided at the lower end of the probe, and a magnetic switch is provided on the outer side of the bottom of the shell. The permanent magnet contacts the magnetic switch under the drive of the probe.

[0009] As a further solution of the present invention: a limiting groove is provided on the outer side of the permanent magnet at the inner lower part of the shell, and the permanent magnet and the limiting groove are slidably engaged with each other.

[0010] As a further solution of the present invention: the top of the detection groove is in a round-headed cone structure.

[0011] Compared with the prior art, the beneficial effect of the present invention is that by providing a lifting cylinder, a probe, a compression spring, a permanent magnet, and a magnetic switch, the lifting cylinder drives the probe to move up and down through the bracket. When the probe detects a qualified sheet metal hole, it drives the permanent magnet and the magnetic switch to contact, thereby determining that the sheet metal hole is qualified.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the following briefly introduces the drawings required for use in the embodiment or the prior art description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0016] Figure 3 It is a schematic diagram of qualified detection of the utility model.

[0017] Figure 4 It is a schematic diagram of unqualified detection of the present utility model.

[0018] As shown in the figure: 1. Lifting cylinder; 2. Bracket; 3. Detection component; 4. Housing; 5. Probe; 6. Detection slot; 7. Top block; 8. Compression spring; 9. Permanent magnet; 10. Magnetic switch; 11. Limit slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0022] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] See also Figure 1-4 , a detection mechanism for sheet metal holes, comprising a lifting cylinder 1;

[0024] A bracket 2 is provided on the telescopic rod of the lifting cylinder 1. The bracket 2 is a Z-shaped structure. A detection component 3 is provided at the other end of the bracket 2.

[0025] The detection assembly 3 includes a housing 4, a probe 5 is provided inside the housing 4, the upper portion of the probe 5 passes through the housing 4 upward, a detection slot 6 is formed at the top of the probe 5, a top block 7 is provided in the middle of the probe 5, the top block 7 is in contact with the inner upper portion of the housing 4, and a compression spring 8 is sleeved on the lower portion of the probe 5, the two ends of the compression spring 8 are in contact with the top block 7 and the housing 4 respectively;

[0026] A permanent magnet 9 is provided at the lower end of the probe 5 , and a magnetic switch 10 is provided on the outer side of the inner bottom of the housing 4 . Driven by the probe 5 , the permanent magnet 9 contacts the magnetic switch 10 .

[0027] During operation, the lifting cylinder 1 drives the probe 5 to move toward the tooth hole of the sheet metal through the bracket 2. When the detection slot 6 of the probe 5 is inserted into the tooth hole, the detection slot 6 contacts the tooth hole, so that the probe 5 fails to pass through the tooth hole. The inner end of the probe 5 moves downward, thereby driving the permanent magnet 9 to move downward and contact the magnetic switch 10 to generate an electrical signal, and then the electrical signal is transmitted to the PLC, thereby judging that the tooth hole is qualified; on the contrary, the probe 5 passes through the tooth hole upward, the permanent magnet 9 does not contact the magnetic switch 10, and no electrical signal is transmitted to the PLC, thereby judging that the tooth hole is unqualified; when there are many tooth holes on the sheet metal that need to be inspected, a corresponding number of the present detection mechanisms can be installed for simultaneous inspection, thereby improving work efficiency.

[0028] As a further solution of the present invention, a limiting groove 11 is provided on the outer side of the permanent magnet 9 in the inner lower part of the housing 4 , and the permanent magnet 9 and the limiting groove 11 are slidably engaged with each other.

[0029] This enables the permanent magnet 9 to better contact the magnetic switch 10 .

[0030] As a further solution of the present invention: the top of the detection slot 6 is in a round-headed cone structure.

[0031] It can better enter the tooth hole and avoid damaging the tooth hole.

[0032] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0033] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A detection mechanism for sheet metal holes, characterized by: Including lifting cylinder; A bracket is provided on the telescopic rod of the lifting cylinder. The bracket is a Z-shaped mechanism, and a detection component is provided at the other end of the bracket; The detection assembly includes a housing, a probe is provided inside the housing, the upper portion of the probe passes upward through the housing, a detection slot is formed at the top end of the probe, a top block is provided in the middle of the probe, the top block is in contact with the inner upper portion of the housing, and a compression spring is provided at the lower portion of the probe, the two ends of the compression spring are in contact with the top block and the housing respectively; A permanent magnet is provided at the lower end of the probe, and a magnetic switch is provided on the outer side of the bottom of the shell. The permanent magnet contacts the magnetic switch under the drive of the probe.

2. The detection mechanism for sheet metal holes according to claim 1, characterized in that: A limiting groove is provided on the outer side of the permanent magnet at the inner lower part of the shell, and the permanent magnet and the limiting groove are slidably matched with each other.

3. The detection mechanism for sheet metal holes according to claim 1, characterized in that: The top of the detection slot is a round-head cone structure.

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