Threaded hole machining qualification inspection device

Abstract

The utility model relates to a threaded hole machining qualification inspection device. The device comprises a thread gauge, wherein the first end of the thread gauge is a detection end screwed into the threaded hole; the detection device is arranged on the side of the turbine shell, and the detection device is used for detecting whether the thread gauge is screwed into the threaded hole or not; the limiting device is provided with a limiting surface, and the thread gauge and the limiting device can move relatively; when the detection end is screwed into the threaded hole in place, the limiting device can enable the second end of the thread gauge to move, so that the detection device can detect the thread gauge; when the detection end is not screwed in place, the limiting device can prevent the second end of the thread gauge from getting close to the detection device, so that the detection device cannot detect the thread gauge. According to the utility model, whether the thread depth of the threaded hole and the depth of the counter bore are qualified or not can be detected when the turbine shell is marked, and the quality of turbine shell products is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a threaded hole processing qualified inspection device. Background Art

[0002] During the processing of turbine shells, most turbine shells are equipped with threaded holes. According to the customer's drawing requirements, the threaded holes usually need to meet the specifications of thread depth and countersink depth. When processing threaded holes, due to the limited tool life, the tool sometimes suffers from severe wear, resulting in the threaded holes not meeting the quality standards or the countersink depth not meeting the standards. If these threaded holes that do not meet the requirements are not discovered in time during marking and engraving, it is easy to cause defective products to flow out. Summary of the invention

[0003] To this end, the utility model provides a threaded hole processing qualified inspection device, which can detect whether the thread depth and countersink depth of the threaded hole are qualified when the turbine shell is marked, thereby ensuring the product quality of the turbine shell.

[0004] In order to solve the above technical problems, the utility model provides a threaded hole processing qualified inspection device, which is used to inspect whether the threaded hole on the turbine shell is processed qualified when marking the turbine shell. When marking, the turbine shell is placed on the marking tool, and the device includes:

[0005] A thread gauge, comprising a first end and a second end axially oppositely disposed, wherein the first end of the thread gauge is a detection end screwed into the threaded hole;

[0006] A detection device, arranged beside the turbine housing, the detection device being used to detect whether the thread gauge is screwed into the threaded hole;

[0007] A limiting device is provided with a limiting surface, and the thread gauge and the limiting device can move relative to each other;

[0008] Wherein, when the detection end is screwed into the threaded hole and in place, the limiting device can allow the second end of the thread gauge to move, so that the detection device can detect the thread gauge;

[0009] When the detection end is not screwed into place, the limiting device can prevent the second end of the thread gauge from approaching the detection device, so that the detection device cannot detect the thread gauge.

[0010] In one embodiment of the present utility model, when the detection end is screwed into the threaded hole and the detection device detects the thread gauge, the second end of the thread gauge faces the limit surface and a reserved gap is left between the second end and the limit surface.

[0011] In one implementation of the present utility model, the reserved gap is 2±0.3 mm.

[0012] In one implementation of the present utility model, the detection device includes a proximity switch.

[0013] In an embodiment of the present utility model, the limiting device comprises a limiting block, and a surface of the limiting block facing the thread gauge is constructed as the limiting surface.

[0014] In one embodiment of the present utility model, the marking tool comprises a base plate and a slide plate slidably connected to the base plate, and the turbine housing is placed on the slide plate.

[0015] In one embodiment of the present invention, a slide rail is provided between the slide plate and the bottom plate.

[0016] In one embodiment of the present invention, it further includes a mounting base installed on the base plate, the detection device is installed on the mounting base, and the limiting device is installed on the base plate and close to the mounting base.

[0017] In an embodiment of the present utility model, the detection end includes a cylindrical end and a threaded end extending from the cylindrical end.

[0018] In one embodiment of the present invention, a rounded corner is arranged on the periphery of the second end of the thread gauge.

[0019] The above technical solution of the utility model has the following advantages compared with the prior art:

[0020] The utility model discloses a threaded hole processing qualified inspection device, which can detect whether the thread depth and countersink depth of the threaded hole are qualified when marking the turbine shell through the combination of the detection device and the thread gauge. The limit device ensures that the thread gauge is fully screwed in through physical interference to prevent erroneous detection caused by failure to screw in, thereby ensuring the product quality of the turbine shell.

[0021] The detection device can detect the presence of the thread gauge and is connected to the alarm system. If the thread gauge is not installed correctly or is not in place, the system will trigger an alarm, stopping the marking process and preventing unqualified parts from being shipped out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of a threaded hole processing qualified inspection device of the utility model.

[0024] Figure 2 It is a structural schematic diagram of the thread gauge of the utility model.

[0025] Figure 3 It is a schematic diagram of the structure of the practical device when no limit device is provided.

[0026] Description of the Figures in the Specification:

[0027] 1. Marking tooling; 11. Bottom plate; 12. Slide plate; 13. Slide rail;

[0028] 2. Turbine housing;

[0029] 3. Thread gauge; 31. Cylindrical end; 32. Thread end;

[0030] 4. Detection device;

[0031] 5. Limiting device;

[0032] 6. Mounting seat. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0034] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0035] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0037] Reference Figure 1As shown, a threaded hole processing qualified inspection device of the utility model is used to inspect whether the threaded hole on the turbine shell 2 is processed qualified when marking the turbine shell 2. When marking, the turbine shell 2 is placed on the marking tool 1. The device includes:

[0038] A thread gauge 3, comprising a first end and a second end axially opposite to each other, wherein the first end of the thread gauge 3 is a detection end screwed into the threaded hole;

[0039] A detection device 4 is arranged beside the turbine housing 2, and is used to detect whether the thread gauge 3 is screwed into the threaded hole;

[0040] The limiting device 5 is provided with a limiting surface, and the thread gauge 3 and the limiting device 5 can move relative to each other;

[0041] When the detection end is screwed into the threaded hole, the limiting device 5 can allow the second end of the thread gauge 3 to move, so that the detection device 4 can detect the thread gauge 3;

[0042] When the detection end is not screwed into place, the limiting device 5 can prevent the second end of the thread gauge 3 from approaching the detection device 4 , so that the detection device 4 cannot detect the thread gauge 3 .

[0043] The above setting prevents processing errors by using the thread gauge 3 and the detection device 4 on the marking and lettering tool. The thread gauge 3 is screwed into the threaded hole on the turbine housing 2 to ensure that its size meets the standard. In order to prevent forgetting to screw in the thread gauge 3 during marking, the detection device 4 is installed next to the tool. Once the thread gauge 3 is correctly screwed into the threaded hole and the turbine housing 2 is installed in the tool, the detection device 4 will detect the existence of the thread gauge 3. If the thread gauge 3 is not detected, the system will trigger an alarm to prevent the marking and lettering process from continuing, thereby ensuring that the thread gauge 3 is screwed in.

[0044] In addition, when screwing in the thread gauge 3, in order to avoid the situation where the countersunk hole is not fully screwed in (i.e. completely screwed to the bottom), the error-proofing verification is insufficient, so that the proximity switch can correctly identify the thread gauge 3, but the engraving process can still proceed normally. Figure 3 Therefore, by setting the limit device 5, when the thread gauge 3 is not screwed into place, the limit device 5 will interfere with it, so that the detection device 4 cannot detect the thread gauge 3, and then the lettering process cannot be carried out normally, so that the thread gauge 3 can be correctly screwed in, and the purpose of preventing errors in threaded holes and countersunk holes can be achieved.

[0045] In one embodiment, when the detection end is screwed into the threaded hole and the detection device 4 detects the thread gauge 3, the second end of the thread gauge 3 faces the limit surface and a reserved gap is left between the second end and the limit surface. Specifically, the reserved gap is 2±0.3 mm. The reserved gap ensures that there is still a certain amount of room for movement when the thread gauge 3 is correctly screwed in, and does not affect the operation of the detection device 4.

[0046] In one embodiment, the detection device 4 includes a proximity switch; it is understood that the proximity switch can detect the presence of the thread gauge 3 and is connected to the alarm system (PLC). If the thread gauge 3 is not installed correctly or is not in place, the system will trigger an alarm to stop the marking process and prevent unqualified parts from flowing out.

[0047] The limiting device 5 includes a limiting block, and a surface of the limiting block facing the thread gauge 3 is configured as the limiting surface.

[0048] In one embodiment, referring to Figure 1 As shown, the marking tool 1 includes a bottom plate 11 and a slide plate 12 slidably connected to the bottom plate 11, and the turbine housing 2 is placed on the slide plate 12. Specifically, a slide rail 13 is provided between the slide plate 12 and the bottom plate 11.

[0049] The slidable slide plate 12 facilitates the movement of the turbine housing 2 on the bottom plate 11, thereby achieving rapid inspection and positioning and improving inspection efficiency.

[0050] Specifically, it also includes a mounting seat 6 installed on the bottom plate 11 , the detection device 4 is installed on the mounting seat 6 , and the limiting device 5 is installed on the bottom plate 11 and close to the mounting seat 6 .

[0051] In one embodiment, referring to Figure 3 As shown, the detection end includes a cylindrical end 31 and a threaded end 32 extending from the cylindrical end 31; the second end periphery of the thread gauge 3 is provided with a rounded corner. The threaded end 32 is an M6 thread, which is used to prevent the threaded hole from being processed unqualified; the cylindrical end 31 is a cylinder with a diameter of Φ6 and a length of 2 cm, which is used to prevent the countersink from being unqualified.

[0052] During operation, the turbine housing 2 is placed on the slide 12 of the marking tool 1, and the slide 12 is moved toward the direction close to the detection device 4. When the detection end is screwed into the threaded hole, the limit device 5 can give way to the movement of the second end of the thread gauge 3, so that the detection device 4 can detect the thread gauge 3. When the detection end is not screwed into place, the limit device 5 can block the second end of the thread gauge 3 from approaching the detection device 4, so that the detection device 4 cannot detect the thread gauge 3. If the thread gauge 3 is not detected, the system will trigger an alarm to prevent further processing operations. When the thread gauge 3 is correctly detected, the marking and engraving process is carried out.

[0053] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A threaded hole processing qualified inspection device, used for inspecting whether the threaded hole on a turbine shell (2) is processed qualified when marking the turbine shell (2), wherein the turbine shell (2) is placed on a marking tool (1) during marking, and characterized in that: The device comprises: A thread gauge (3) comprising a first end and a second end arranged axially opposite to each other, the first end of the thread gauge (3) being a detection end screwed into the threaded hole; A detection device (4) is arranged beside the turbine housing (2), and the detection device (4) is used to detect whether the thread gauge (3) is screwed into the threaded hole; A limiting device (5) is provided with a limiting surface, and the thread gauge (3) and the limiting device (5) are capable of relative movement; When the detection end is screwed into the threaded hole, the limiting device (5) can allow the second end of the thread gauge (3) to move, so that the detection device (4) can detect the thread gauge (3); When the detection end is not screwed into place, the limiting device (5) can prevent the second end of the thread gauge (3) from approaching the detection device (4), so that the detection device (4) cannot detect the thread gauge (3).

2. A threaded hole processing qualified inspection device according to claim 1, characterized in that: When the detection end is screwed into the threaded hole and in place and the detection device (4) detects the thread gauge (3), the second end of the thread gauge (3) faces the limit surface and a reserved gap is left between the second end and the limit surface.

3. A threaded hole processing qualified inspection device according to claim 2, characterized in that: The reserved gap is 2±0.3 mm.

4. A threaded hole processing qualified inspection device according to claim 1, characterized in that: The detection device (4) comprises a proximity switch.

5. A threaded hole processing qualified inspection device according to claim 1, characterized in that: The limiting device (5) comprises a limiting block, and a surface of the limiting block facing the thread gauge (3) is constructed as the limiting surface.

6. A threaded hole processing qualified inspection device according to claim 1, characterized in that: The marking tool (1) comprises a base plate (11) and a slide plate (12) slidably connected to the base plate (11), and the turbine housing (2) is placed on the slide plate (12).

7. A threaded hole processing qualified inspection device according to claim 6, characterized in that: A slide rail (13) is provided between the slide plate (12) and the bottom plate (11).

8. A threaded hole processing qualified inspection device according to claim 6, characterized in that: It also includes a mounting seat (6) mounted on the base plate (11), the detection device (4) is mounted on the mounting seat (6), and the limiting device (5) is mounted on the base plate (11) and close to the mounting seat (6).

9. A threaded hole processing qualified inspection device according to claim 1, characterized in that: The detection end comprises a cylindrical end (31) and a threaded end (32) extending from the cylindrical end (31).

10. A threaded hole processing qualified inspection device according to claim 1, characterized in that: The second end periphery of the thread gauge (3) is provided with a rounded corner.

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