Device for accurately detecting depth of small hole

Abstract

The utility model discloses a device for accurately detecting the depth of a small hole, which comprises a horizontal workbench, a fixed pedestal and a measuring mechanism arranged on the fixed pedestal, the horizontal workbench is provided with a measuring station, and the measuring mechanism is used for measuring a part to be measured on the measuring station; the method has the characteristics of accurate measurement, no need of expensive equipment, simple detection method, convenience in operation, low use cost and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of part detection, especially a device for accurately detecting small hole depth. BACKGROUND

[0002] In the field of industrial production and scientific research, it is often necessary to accurately measure the depth of small holes on various parts. Traditional measurement methods such as using a caliper are difficult to accurately measure some small holes, especially those with deep depth, small aperture, or special hole bottom shape (such as non-flat bottom). Even with laser and ultrasonic devices, although the accuracy is high, these devices are often expensive, complex to operate, require high professional skills of the operator, and have high detection costs, which are not conducive to widespread application and promotion. SUMMARY

[0003] To solve the above technical problems, the utility model provides a device for accurately detecting small hole depth.

[0004] The utility model discloses the following technical scheme can be realized.

[0005] The device for accurately detecting small hole depth provided by the utility model comprises a horizontal workbench, a fixed pedestal, and a measuring mechanism installed on the fixed pedestal. The horizontal workbench is provided with a measuring station, and the measuring mechanism is used for measuring the parts to be measured on the measuring station.

[0006] Preferably, the measuring mechanism comprises a scale, a limiting block, and a probe. The scale is fixedly arranged on the fixed pedestal, the limiting block is slidingly arranged along the length direction of the scale, and the probe is arranged on the limiting block.

[0007] Preferably, an anti-skid wheel is installed on the limiting block, the anti-skid wheel is in contact with the side surface of the scale, and a first knob is threadedly arranged on the other side of the limiting block.

[0008] Preferably, an extension mechanism is arranged on the limiting block, and the probe is installed on the extension mechanism.

[0009] Preferably, the extension mechanism comprises a first supporting arm, a second supporting arm, and a locking structure. The first supporting arm is installed on the limiting block, the locking structure fixes the first supporting arm and the second supporting arm together, and the probe is installed on the end of the second supporting arm away from the first supporting arm.

[0010] Preferably, the locking structure comprises a fixed block and a second knob. A through hole is arranged on the fixed block, the ends of the first supporting arm and the second supporting arm that are close to each other pass through the through hole, and the second knob fixes the first supporting arm and the second supporting arm on the fixed block by being screwed into the fixed block.

[0011] Preferably, the second supporting arm is arranged as a column-shaped supporting arm, and a through opening is arranged at one end of the column-shaped supporting arm away from the first supporting arm, and the probe is arranged in the through opening and fixed in the through opening by the third knob.

[0012] Preferably, an electronic measuring meter is arranged on the limiting block.

[0013] Preferably, a reserved gap is arranged on the horizontal workbench.

[0014] The beneficial effects of the utility model lie in:

[0015] 1. Accurate measurement: for small hole depth that cannot be accurately measured by traditional tools such as calipers, even cannot be measured, the structure can realize direct measurement and ensure the accuracy of measurement, which can meet the quality control requirements in some occasions with high requirements for small hole depth accuracy, such as precision part manufacturing, aerospace and other fields.

[0016] 2. No need for expensive equipment: compared with detection methods using expensive equipment such as laser and ultrasonic wave, the technology does not need these high-end equipment, greatly reduces the detection cost, which is very attractive for some small and medium-sized enterprises or projects with strict cost control, and is conducive to the popularization and application of the technology.

[0017] 3. Simple detection method: the steps of the whole detection process are relatively simple, and the operator does not need to have very professional skills and knowledge, and can master it after simple training, which reduces the requirements for the operator and improves the efficiency and operability of the detection work.

[0018] 4. Convenient operation: the assembly of the structure and the process of the detection method pay attention to the convenience of operation, whether it is the installation of the probe, the fixation of the part or the detection of the depth and the reading and recording of the data, it can be relatively smoothly, reduces the cumbersome and difficult in the operation process, and further improves the work efficiency.

[0019] 5. Low use cost: the cost of manufacturing, maintenance and operator training of the structure is also relatively low, and the comprehensive use cost is low, which has good economic benefit and market competitiveness. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is a structural schematic view of another aspect of the utility model;

[0022] In the figure: 1-measuring mechanism; 11-limiting block; 12-ruler; 13-probe; 14-anti-skid wheel; 15-first knob; 16-electronic measuring meter; 2-extension mechanism; 21-first support arm; 22-second support arm; 221-cylindrical support arm; 222-through opening; 223-third knob; 23-locking structure; 231-fixing block; 232-second knob; 3-horizontal workbench; 4-fixing pedestal; 5-measuring station; 6-reserved notch; 7-pieces to be measured. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0025] In the present embodiment, reference is made to Figure 1 and Figure 2 , including a horizontal workbench 3 and a fixing pedestal 4, to provide a flat horizontal surface for measurement work and ensure accurate measurement of the size of the pieces to be measured 7.

[0026] A measuring station 5 is arranged on the horizontal workbench 3 for placing the pieces to be measured 7, and the horizontal workbench 3 is also provided with a reserved notch 6 for facilitating operation by the worker. The fixing pedestal 4 is provided with a measuring mechanism 1 for measuring the pieces to be measured 7 on the measuring station 5.

[0027] In the present embodiment, reference is made to Figure 1 and Figure 2The measuring mechanism 1 comprises a scale 12, a limiting block 11 and a probe 13. The scale 12 is fixedly installed on the fixed pedestal 4 and is vertically arranged on the fixed pedestal 4. The limiting block 11 is slidingly arranged along the length direction of the scale 12. The limiting block 11 is rotatably provided with an anti-skid wheel 14. The anti-skid wheel 14 is in contact with the side surface of the scale 12. The other side of the limiting block 11 is threadedly provided with a first knob 15. The first knob 15 is used for fastening and loosening the anti-skid wheel 14, so as to conveniently adjust the sliding state or the fixed state of the limiting block 11. The probe 13 is installed on the limiting block 11. Different sizes of the probe 13 can be selected according to different hole diameters. The probe 13 is suitable for hole depth measurement of different sizes of holes on the measured part 7.

[0028] Meanwhile, an electronic measuring meter 16 is also installed on the limiting block 11. The electronic measuring meter 16 is used for measuring the distance of the vertical movement of the probe 13, so as to realize accurate measurement of the hole depth of the measured part 7.

[0029] In the embodiment, referring to Figure 1 and Figure 2 , the limiting block 11 is provided with an extension mechanism 2. The probe 13 is installed on the extension mechanism 2. The extension mechanism 2 comprises a first supporting arm 21, a second supporting arm 22 and a locking structure 23. The first supporting arm 21 is fixedly installed on the limiting block 11. Specifically, the first supporting arm 21 is fixedly welded on the side surface of the electronic measuring meter 16. The locking structure 23 fixes the first supporting arm 21 and the second supporting arm 22 together. The locking structure 23 comprises a fixing block 231 and a second knob 232. The fixing block 231 is provided with a through hole. The first supporting arm 21 and the second supporting arm 22 are both inserted into the through hole. The second knob 232 is screwed into the fixing block 231 to fix the first supporting arm 21 and the second supporting arm 22 on the fixing block 231. The probe 13 is installed on the end of the second supporting arm 22 away from the first supporting arm 21. The length of the second supporting arm 22 inserted into the fixing block 231 is adjusted, so as to adjust the position of the probe 13. The position of the probe 13 is adjusted according to the position of the hole on the measured part 7.

[0030] In the embodiment, referring to Figure 1 and Figure 2 , the second supporting arm 22 is provided as a cylindrical supporting arm 221. The end of the cylindrical supporting arm 221 away from the first supporting arm 21 is provided with a through opening 222. The probe 13 is inserted into the through opening 222. The probe 13 is inserted into the through opening 222. The third knob 223 is tightened to fix the probe 13 in the through opening 222. The end surface of the two end portions of the probe 13 is smaller than the cross section of the middle portion, so as to facilitate the third knob 223 to abut against the probe 13.

[0031] The operation process of the embodiment is as follows: first, the part to be measured 7 is placed on the measuring station 5, the probe 13 is inserted into the through opening 222, the probe 13 is fixed in the through opening 222 by tightening the third knob 223, the electronic measuring meter 16 is slid along the length direction of the scale 12, and the probe 13 is driven to move upward, the position of the probe 13 is adjusted by adjusting the length of the second supporting arm 22 passing through the fixed block 231, the probe 13 is moved transversely to the top end of the part to be measured 7, the limiting block 11 is slid downward to drive the electronic measuring meter 16 to move downward, the probe 13 is in contact with the surface of the top end of the part to be measured 7, and the initial measurement data is reserved; during the measurement process, the probe 13 extends into the small hole of the part to be measured 7, the depth data of the small hole is obtained by observing the data difference of the electronic measuring meter 16 before and after the probe 13 enters and exits the small hole through the contact with the hole bottom and the cooperation with the electronic measuring meter 16, and the measurement is completed.

[0032] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the concept of the utility model, and the contents of the utility model specification and drawings are included in the patent protection range of the utility model.

Claims

1. An apparatus for accurately detecting the depth of a small hole, characterized by: The utility model relates to a measuring device, including horizontal workbench (3), fixed pedestal (4) and measuring mechanism (1) installed on fixed pedestal (4), be equipped with measuring station (5) on horizontal workbench (3), and measuring mechanism (1) is used for measuring the part (7) to be measured on measuring station (5).

2. A device for accurately detecting the depth of a small hole as claimed in claim 1, characterized in that: The measuring device (1) comprises a scale (12), a limiting block (11) and a probe (13), the scale (12) is fixedly arranged on the fixed pedestal (4), the limiting block (11) is slidably arranged along the length direction of the scale (12), and the probe (13) is arranged on the limiting block (11).

3. A device for accurately measuring the depth of a small hole as claimed in claim 2, characterized in that: The limiting block (11) is provided with an anti-skid wheel (14), the anti-skid wheel (14) is in contact with the side surface of the scale (12), and the other side of the limiting block (11) is provided with a first knob (15) in threaded mode.

4. A device for accurately measuring the depth of a small hole as claimed in claim 2, characterized in that: The limiting block (11) is provided with an extension mechanism (2), and the probe (13) is installed on the extension mechanism (2).

5. A device for accurately measuring the depth of a small hole as claimed in claim 4, characterized in that: The extension mechanism (2) comprises a first supporting arm (21), a second supporting arm (22) and a locking structure (23), the first supporting arm (21) is installed on the limiting block (11), the locking structure (23) fixes the first supporting arm (21) and the second supporting arm (22) together, and the second supporting arm (22) is connected with the probe (13) at the end, away from the first supporting arm (21).

6. A device for accurately measuring the depth of a small hole as claimed in claim 5, characterized in that: The locking structure (23) comprises a fixed block (231) and a second knob (232), the fixed block (231) is provided with a through hole, the first supporting arm (21) and the second supporting arm (22) are arranged to pass through the through hole, and the second knob (232) is arranged to pass into the fixed block (231) to fix the first supporting arm (21) and the second supporting arm (22) on the fixed block (231).

7. A device for accurately measuring the depth of a small hole as claimed in claim 5, characterized in that: The second supporting arm (22) is arranged as a cylindrical supporting arm (221), the cylindrical supporting arm (221) is provided with a through opening (222) at the end, away from the first supporting arm (21), the probe (13) is arranged to pass through the through opening (222), and a third knob (223) is arranged to fix the probe (13) in the through opening (222).

8. A device for accurately measuring the depth of a small hole as claimed in claim 2, characterized in that: The limiting block (11) is provided with an electronic measuring meter (16).

9. The device for accurately measuring the depth of a small hole according to claim 1, wherein: The horizontal workbench (3) is provided with a reserved gap (6).

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