Detection meter for rapidly detecting upper, middle and lower sizes of inner hole

Abstract

The utility model discloses a detection meter capable of rapidly detecting the upper, middle and lower sizes of an inner hole, which is characterized by comprising an air pipe, an air inlet, an air outlet and an air outlet, the other end of the air pipe extends into the cavity of the detection head, and the detection head is provided with a plurality of exhaust holes. The cavity partition of the detection head is provided with a first detection head gas cavity, a second detection head gas cavity and a third detection head gas cavity from front to back in sequence; a convex part is arranged at the tail end of the detection head, and the detection head is partially guided into the inner hole of the screw rod through the convex part for detection; and a limiting disc and an operating handle are arranged at the rear section of the periphery of the detection head. According to the utility model, through the first measuring head air cavity, the second measuring head air cavity and the third measuring head air cavity, corresponding upper, middle and lower dimension data in a bearing inner hole can be read, and whether the bearing inner hole is qualified or not can be directly judged.

Description

Technical Field

[0001] The utility model relates to the field of bearing manufacturing, in particular to a detection table for quickly detecting the upper, middle and lower dimensions of an inner hole. Background Art

[0002] The inspection instrument for quickly inspecting the upper, middle and lower dimensions of the inner hole of the screw adopts a handheld measuring handle to insert the probe into the inner hole of the screw and rotate it 360°. The inner hole (upper, middle and lower) dimension data can be directly read and whether it is qualified can be directly determined. However, in the prior art, the inner hole dimension is measured by three-coordinate measurement, and the measurement efficiency is slow. Only small batches can be sampled. Subsequent use of go and no-go gauge inspection may also result in inaccurate inspection. For example, if the inner hole has a taper, it cannot be inspected, which may cause defective products to flow out.

[0003] In addition, the existing three-coordinate measurement sampling capability is limited and can only be used for small batch sampling, with one lead screw sampled every four hours. However, according to the current production rhythm, 110 lead screws can be produced every four hours, and the sampling quantity of one cannot be effectively controlled. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an object of the present invention is to provide a detection gauge for quickly detecting the upper, middle and lower dimensions of an inner hole.

[0005] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0006] A detection tool for quickly detecting the upper, middle and lower dimensions of an inner hole, comprising:

[0007] an air tube, one end of which is connected to a processor;

[0008] The other end of the air pipe extends into the cavity of the detection head, and the detection head is provided with a plurality of exhaust holes;

[0009] The cavity partitions of the detection head are sequentially provided with a first probe head air cavity, a second probe head air cavity and a third probe head air cavity from front to back;

[0010] The end of the detection head is provided with a convex portion, through which the detection head portion is introduced into the inner hole of the screw rod for detection;

[0011] A limit plate and an operating handle are arranged at the rear section of the outer periphery of the detection head.

[0012] In a preferred embodiment of the present invention, a display is provided on the processor, and a partition display module is provided on the display.

[0013] In a preferred embodiment of the present utility model, the partition display module is a first probe gas cavity operation display module;

[0014] The second probe air cavity operation display module;

[0015] The third probe air cavity operation display module.

[0016] In a preferred embodiment of the utility model, a plurality of operation buttons are arranged on the processor, and the operation buttons include an operation switch button, a power switch button, a reset button, and an emergency stop button.

[0017] The beneficial effects of the utility model are:

[0018] The utility model can read the corresponding upper, middle and lower dimension data of the inner hole of the bearing through the first probe air cavity body, the second probe air cavity body and the third probe air cavity body, and directly determine whether it is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a partial structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1 A detection instrument for quickly detecting the upper, middle and lower sizes of an inner hole as shown in or 2 includes an air pipe 10 for transmitting gas, one end of the air pipe 10 is connected to a processor 20, and the other end of the air pipe 10 extends into a cavity 301 of a detection head 30, and a plurality of exhaust holes 31 are arranged on the detection head 30.

[0024] The cavity 301 of the detection head 30 is divided into a first probe air cavity 310, a second probe air cavity 320 and a third probe air cavity 330 from front to back. The first probe air cavity 310, the second probe air cavity 320 and the third probe air cavity 330 correspond to the upper, middle and lower positions of the screw inner hole 200 respectively.

[0025] A convex portion 340 is provided at the end of the detection head 30 , through which the detection portion at the front end of the detection head 30 is introduced into the inner hole 200 of the screw rod for detection. A limit plate 350 and an operating handle 360 ​​are provided at the rear section of the outer periphery of the detection head 30 .

[0026] The diameter of the limit plate 350 is larger than the aperture 210 of the screw inner hole 200, so as to achieve the purpose of limiting and ensure that the first probe air cavity 310, the second probe air cavity 320 and the third probe air cavity 330 correspond to the upper, middle and lower positions of the screw inner hole 200 respectively.

[0027] The processor 20 is provided with a display 21 , and the display 21 is provided with partition display modules, which are a first probe gas cavity operation display module 211 , a second probe gas cavity operation display module 212 , and a third probe gas cavity operation display module 213 .

[0028] The processor 20 is provided with a plurality of operation buttons 22 , including an operation switch button 221 , a power switch button 222 , a reset button 223 , and an emergency stop button 224 .

[0029] Because of the above structure, the working principle of the utility model is:

[0030] 1. Connect the tester to the power supply and gas;

[0031] 2. Delivering gas to the first probe gas cavity 310, the second probe gas cavity 320 and the third probe gas cavity 330;

[0032] 3. Pressure is generated in the first probe air cavity 310, the second probe air cavity 320 and the third probe air cavity 330, and the pneumatic probe begins to exhaust air outwards. At this time, there is pressure in the air cavity;

[0033] 4. Insert the detection head 30 deep into the inner hole 200 of the lead screw;

[0034] 5. The exhaust of the first probe air cavity 310, the second probe air cavity 320 and the third probe air cavity 330 is blocked, and the pressure of the first probe air cavity 310, the second probe air cavity 320 and the third probe air cavity 330 changes;

[0035] 6. The processor 20 is calibrated using standard parts (standard part-1: 5mm, standard part-2: 5.02, standard part-3: 5.04mm). Standard part-1, standard part-2 and standard part-3 will each generate a pressure, and the dimensions within this pressure range are qualified.

[0036] 7. The processor 20 calculates the specific product size value according to the pressure

[0037] 8. The display 21 will eventually display the specific upper, middle and lower dimensions of the product, and will determine whether the product is qualified based on the dimensions.

[0038] This is a quick inspection gauge for the upper, middle and lower dimensions of the inner hole of the screw. Hold the measuring handle, insert the probe into the inner hole of the screw, rotate 360°, and directly read the inner hole (upper, middle and lower) dimension data, and directly determine whether it is qualified. The main improvement is that the inner hole size was previously measured by three-coordinate measurement, the measurement efficiency was slow, and only small batches could be sampled. Subsequent use of the go / no-go gauge for detection also resulted in inaccurate detection (such as the inner hole with a taper, which cannot be detected).

[0039] After improving the above situation, the workshop currently uses a single pneumatic probe to fully inspect the inner hole of the screw. However, because the customer requires the inspection of the upper, middle, lower and roundness dimensions, the single probe needs to inspect at three positions (upper, middle, and lower). However, the single probe inspection cycle is slow and has certain requirements for employee operation. If the technique is not correct, it may cause differences in product measurement.

[0040] Through this inspection fixture, on-site processing can be quickly inspected (full inspection) to ensure product quality, and there are no requirements for operator operation. The inspection cycle is increased by two-thirds compared to a single probe, saving time and avoiding poor dimensions of products shipped to the client.

[0041] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above.

[0042] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A detection tool for quickly detecting the upper, middle and lower dimensions of an inner hole, characterized in that: include: an air tube, one end of which is connected to a processor; The other end of the air pipe extends into the cavity of the detection head, and the detection head is provided with a plurality of exhaust holes; The cavity partitions of the detection head are sequentially provided with a first probe head air cavity, a second probe head air cavity and a third probe head air cavity from front to back; The end of the detection head is provided with a convex portion, through which the detection head portion is introduced into the inner hole of the screw rod for detection; A limit plate and an operating handle are arranged at the rear section of the outer periphery of the detection head.

2. A rapid detection gauge for detecting the upper, middle and lower dimensions of an inner hole as claimed in claim 1, characterized in that: The processor is provided with a display, and the display is provided with a partition display module.

3. A rapid detection gauge for detecting the upper, middle and lower dimensions of an inner hole as claimed in claim 2, characterized in that: The partition display module is a first probe air cavity operation display module; The second probe air cavity operation display module; The third probe air cavity operation display module.

4. A rapid detection gauge for detecting the upper, middle and lower dimensions of an inner hole as claimed in claim 1, characterized in that: The processor is provided with a plurality of operation buttons, including an operation switch button, a power switch button, a reset button, and an emergency stop button.

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