Measuring device for accurately measuring hole depth

Abstract

The utility model relates to the related technical field of gas distribution plates, in particular to a measuring device for accurately measuring hole depth, which comprises a depth gauge, one side of the surface of the depth gauge is connected with a base, and one side of the surface of the base is provided with a detection mechanism. According to the measuring device for accurately measuring the hole depth, through the arrangement of the detection mechanism, when the depth of a small hole in a gas distribution disc needs to be accurately detected, a user firstly picks up a depth ruler and then debugs the depth ruler, after debugging is completed, a measuring needle at one end of the depth ruler horizontally extends into the depth ruler, and when a ball head at one end of the to-be-measured needle makes contact with the bottom of the hole, the to-be-measured needle is inserted into the depth ruler; when a hole is detected, the ball head is clamped on the inclined surface of the tool nose angle, at the moment, the depth gauge senses the position table change of the probe through the sensor in the depth gauge, the change is converted into an electric signal, and the depth of the hole is accurately displayed on the display screen on the surface of the depth gauge in a digital form after processing, so that the detection speed and efficiency are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to gas distribution plates, and in particular to a measuring device for accurately measuring hole depth. Background Art

[0002] The purpose of the gas distribution plate is to divert gas when coating chips. A feature of this product is that there are many small holes on the product. There can be 5,000 small holes within the range of φ300. Some of the small holes are second-order or even third-order holes. In order to ensure the amount of gas passing through, it is necessary to control the length of the small hole. The longer the small hole, the faster the flow rate. The thickness of the entire product is within a certain range, and the small hole is in the middle, so the length of the small hole cannot be directly detected. The hole depth can only be calculated by using a measuring device. Therefore, a measuring device that can accurately measure the hole depth is particularly needed.

[0003] However, the existing hole depth measuring device generally uses a plug gauge caliper to detect the small holes on the gas distribution plate, but there are disadvantages. A plug gauge smaller than the large hole is required, otherwise it cannot be inserted. However, after the smaller plug gauge is put in, it is stuck on the tip corner and there will be an error value. At the same time, in order to control the flow rate, many kinds of hole depths are designed on some products, resulting in very slow detection efficiency using a plug gauge caliper.

[0004] In order to solve the above problems, after searching, the patent publication number CN 220418404 U discloses a measuring probe and a three-dimensional coordinate measuring machine. The article proposes "a measuring probe for measuring the groove structure of a product to be measured, comprising a fixing seat, a probe shell, a probe seat and a stylus body; the fixing seat is provided with a receiving groove, the side walls of the receiving groove are provided with a plurality of blind holes, an elastic member is placed in the blind hole, the two ends of the elastic member are elastically connected to the bottom of the blind hole and the limiting member respectively, the elastic member is used to push the limiting member to move away from the bottom of the blind hole; one end of the probe shell is inserted into the receiving groove, and the other end is provided with a fixing hole, the outer wall of the probe shell is provided with at least one annular groove, and the limiting member can resist the The cam is pressed into the annular groove; a locking head is provided at one end of the probe base and a receiving groove is provided at the other end, and the locking head is locked and connected to the fixing hole; a flat head probe is provided at one end of the probe body, and the other end is detachably inserted into the receiving groove, and the flat head probe is used to measure the product to be measured. Although the detachable probe can be realized by pressing the annular groove with a limiter, it may be difficult to determine the accurate measurement position of the probe due to the rotation during measurement due to the annular groove, resulting in deviation in the measurement result. At the same time, if a flat head probe is used, when the bottom of the hole is not flat enough, it is difficult for the cylindrical head probe to determine the true depth position.

[0005] In view of this, we conducted in-depth research on the above issues, which led to the present case. Utility Model Content

[0006] The purpose of the present utility model is to provide a measuring device for accurately measuring hole depth, so as to solve the problem of the existing hole depth measuring device proposed in the above background technology. Generally, the small holes on the gas distribution plate are detected by a feeler gauge caliper, but there will be disadvantages. A feeler gauge smaller than the large hole is required, otherwise it cannot be inserted. However, after the smaller feeler gauge is put in, it will be stuck on the tip corner and there will be an error value. At the same time, in order to control the flow rate, many kinds of hole depths are designed on some products, resulting in the problem that the detection efficiency using a feeler gauge caliper is very slow.

[0007] To achieve the above object, the utility model provides the following technical solution: a measuring device for accurately measuring hole depth, comprising a depth gauge, a surface side of the depth gauge being connected to a base, a surface side of the base being provided with a detection mechanism;

[0008] The detection mechanism includes a mounting block, a limit groove, a positioning groove, an embedding groove, a spring, a positioning block, a clamping groove, a measuring needle, a clamping block and a ball head. The mounting block is embedded at one end of the base, a limit groove is provided inside the base, a positioning groove is provided on one side of the surface of the base, an embedding groove is provided on one side of the surface of the base, a spring is embedded inside the base, a positioning block is connected to one side of the surface of the mounting block, a clamping groove is provided on one side of the surface of the mounting block, a measuring needle is connected to the surface of the mounting block, one end of the spring is connected to the clamping block, and one end of the measuring needle is connected to the ball head.

[0009] Preferably, the diameter of the ball head is three centimeters and the length of the measuring needle is twenty-five centimeters.

[0010] Preferably, the springs are embedded in the limiting grooves, and four groups of springs are provided.

[0011] Preferably, the clamping block is a trapezoidal block, one end of the clamping block is embedded in the limiting groove, and the size of the one end of the clamping block matches that of the clamping groove.

[0012] Preferably, one end of the positioning block matches the size of the positioning groove, and one end of the mounting block matches the size of the embedding groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the measuring device for accurately measuring the hole depth extends the measuring needle at one end of the depth gauge horizontally into the small hole on the surface of the gas diverter plate. When the ball head at one end of the measuring needle contacts the bottom of the hole, the depth of the small hole can be accurately obtained through the display screen on the surface of the depth gauge. The detection speed is very fast, and the measuring needle can be taken out and replaced by simply pulling it, which effectively reduces the detection error and improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a side view of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the detection mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the sectional exploded structure of the detection mechanism of the utility model;

[0017] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the figure: 1. Depth gauge; 2. Base; 3. Detection mechanism; 301. Mounting block; 302. Limiting groove; 303. Positioning groove; 304. Embedded groove; 305. Spring; 306. Positioning block; 307. Clamping groove; 308. Probe; 309. Clamping block; 310. Ball head. 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] See also Figure 1-4 The utility model provides a technical solution: a measuring device for accurately measuring hole depth, comprising a depth gauge 1, a surface side of the depth gauge 1 is connected to a base 2, and a surface side of the base 2 is provided with a detection mechanism 3;

[0021] The detection mechanism 3 includes a mounting block 301, a limiting groove 302, a positioning groove 303, a locking groove 304, a spring 305, a positioning block 306, a clamping groove 307, a measuring needle 308, a clamping block 309 and a ball head 310. One end of the base 2 is embedded with the mounting block 301, the inner portion of the base 2 is provided with a limiting groove 302, the surface side of the base 2 is provided with a positioning groove 303, the surface side of the base 2 is provided with a locking groove 304, the inner portion of the base 2 is embedded with a spring 305, and the surface side of the mounting block 301 is connected to Positioning block 306, a slot 307 is provided on one side of the surface of mounting block 301, a measuring needle 308 is connected to the surface of mounting block 301, one end of spring 305 is connected to a block 309, and one end of measuring needle 308 is connected to a ball head 310. When it is necessary to accurately detect the depth of the small hole on the gas distribution plate, the user first picks up the depth gauge 1 and then debugs the depth gauge 1. After the debugging is completed, the measuring needle 308 at one end of the depth gauge 1 is horizontally extended until the ball head 310 at one end of the measuring needle 308 contacts the hole. When the tool tip is at the bottom, the ball head 310 will be stuck on the inclined surface of the tool tip angle. At this time, the depth gauge 1 will sense the position change of the stylus 308 through its internal sensor and convert this change into an electrical signal. After processing, the depth of the hole is accurately displayed in digital form on the display screen on the surface of the depth gauge 1, thereby effectively improving the detection speed and efficiency. When it is necessary to replace the stylus 308 of different lengths to detect the depth of different holes, it is only necessary to pull one end of the stylus 308, and the stylus 308 will drive the mounting block 301 to move. When the mounting block 301 continuously squeezes the clamping block 309, the clamping block 309 is forced to move toward the inside of the limiting groove 302 and squeeze the spring 305. The spring 305 is compressed. When the clamping block 309 is squeezed until it is completely embedded in the limiting groove 302, the positioning block 306 on one side of the mounting block 301 continuously disengages from the positioning groove 303. When one end of the positioning block 306 is completely away from the positioning groove 303, the mounting block 301 can be removed from the embedding groove 304 by the measuring needle 308, and then the measuring needle 308 of different lengths can be replaced.

[0022] Furthermore, the diameter of the ball head 310 is three centimeters, and the length of the measuring needle 308 is twenty-five centimeters. Through the setting of the ball head 310, when in use, the ball head 310 can be stably stuck on the inclined surface of the tool tip angle without being disturbed by the burrs of the hole.

[0023] Furthermore, the spring 305 is embedded in the limiting groove 302, and four groups of springs 305 are provided. Through the setting of the spring 305, when in use, the spring 305 can fix the mounting block 301 on the base 2 through the clamping block 309 in a normal state.

[0024] Furthermore, the block 309 is a trapezoidal block, one end of the block 309 is embedded in the inside of the limit groove 302, and one end of the block 309 is consistent with the size of the slot 307. Through the setting of the block 309, when in use, one end of the block 309 is stuck into the slot 307 under the action of the spring 305, thereby fixing the mounting block 301 and ensuring the stability of the measuring needle 308 during use.

[0025] Furthermore, one end of the positioning block 306 matches the size of the positioning groove 303, and one end of the mounting block 301 matches the size of the embedding groove 304. Through the setting of the positioning block 306, when in use, the positioning block 306 cooperates with the positioning groove 303 to guide the positioning of one end of the mounting block 301 when it is embedded in the embedding groove 304, thereby facilitating the subsequent clamping block 309 to accurately clamp the clamping groove 307.

[0026] Working principle: First, when it is necessary to accurately detect the depth of the small hole on the gas distribution plate, the user picks up the depth gauge 1 and then debugs the depth gauge 1. After debugging is completed, the probe 308 at one end of the depth gauge 1 is horizontally extended. When the ball head 310 at one end of the probe 308 touches the bottom of the hole, the ball head 310 will be stuck on the inclined surface of the tool tip angle. At this time, the depth gauge 1 will sense the position change of the probe 308 through its internal sensor, and convert this change into an electrical signal. After processing, the depth of the hole is accurately displayed in digital form on the display screen on the surface of the depth gauge 1, thereby effectively improving the detection speed and efficiency. When it is necessary to replace probes of different lengths, the depth gauge 1 will be accurately displayed in digital form on the display screen on the surface of the depth gauge 1, thereby effectively improving the detection speed and efficiency. When the stylus 308 is used to detect the depth of different holes, it is only necessary to pull one end of the stylus 308, and then the stylus 308 drives the mounting block 301 to move. At this time, the mounting block 301 continuously squeezes the clamping block 309, and the clamping block 309 is forced to move toward the inside of the limiting groove 302 and squeeze the spring 305. The spring 305 is compressed. When the clamping block 309 is squeezed until it is completely embedded in the limiting groove 302, the positioning block 306 on one side of the mounting block 301 continuously disengages from the positioning groove 303. When one end of the positioning block 306 is completely away from the positioning groove 303, the mounting block 301 can be removed from the embedding groove 304 by the stylus 308, and then the stylus 308 of different lengths can be replaced.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A measuring device for accurately measuring hole depth, comprising a depth gauge (1), characterized in that: One side of the surface of the depth gauge (1) is connected to a base (2), and one side of the surface of the base (2) is provided with a detection mechanism (3); The detection mechanism (3) comprises a mounting block (301), a limiting groove (302), a positioning groove (303), an embedding groove (304), a spring (305), a positioning block (306), a clamping groove (307), a measuring needle (308), a clamping block (309) and a ball head (310); one end of the base (2) is embedded with the mounting block (301); the interior of the base (2) is provided with a limiting groove (302); one side of the surface of the base (2) is provided with a positioning groove (303); A groove (304) is provided on one side of the surface of the base (2), a spring (305) is embedded in the interior of the base (2), a positioning block (306) is connected to one side of the surface of the mounting block (301), a clamping groove (307) is provided on one side of the surface of the mounting block (301), a measuring needle (308) is connected to the surface of the mounting block (301), one end of the spring (305) is connected to the clamping block (309), and one end of the measuring needle (308) is connected to a ball head (310).

2. The device for accurately measuring hole depth according to claim 1, characterized in that: The diameter of the ball head (310) is three centimeters, and the length of the measuring needle (308) is twenty-five centimeters.

3. The device for accurately measuring hole depth according to claim 1, characterized in that: The springs (305) are embedded in the limiting grooves (302), and four groups of springs (305) are provided.

4. The device for accurately measuring hole depth according to claim 1, characterized in that: The clamping block (309) is a trapezoidal block, one end of the clamping block (309) is embedded in the interior of the limiting groove (302), and one end of the clamping block (309) matches the size of the clamping groove (307).

5. The device for accurately measuring hole depth according to claim 1, characterized in that: One end of the positioning block (306) matches the size of the positioning groove (303), and one end of the installation block (301) matches the size of the embedding groove (304).

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