Novel machine part hole depth measuring mechanism
By integrating laser ranging modules, detection circuits and display circuits in the depth detection equipment of the machine parts, the problem of detection data errors and depths in existing equipment are solved, and more intuitive and accurate depth detection and prompts are achieved.
Patent Information
- Application Number
- CN202420605876.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-27
AI Technical Summary
Existing machine depth detection equipment has the risk of detection data errors, especially when the detector's vision is poor or the light is poor, and it is impossible to promptly inform when the depth is too shallow, which affects the quality of the deep hole.
A new type of machine hole depth measurement mechanism is designed, using laser ranging module, detection circuit, magnet attachment mechanism and display circuit, to display depth data through the LCD screen, and to use an acoustic and optical alarm to prompt the detector when the depth is too shallow.
It realizes the intuitive display of detection data, reduces human detection errors, prompts the problem of too shallow depth, and improves the quality of deep holes and detection accuracy.
Smart Images
Figure CN222579221U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detection equipment, in particular to a novel machine part hole depth measuring mechanism. Background Art
[0002] In the field of machinery, drilling holes in parts (machine parts) is a very common process (for example, drilling screw holes and rivet holes with a certain depth on machine parts). Especially in some production sites where workers need to drill holes manually, due to the influence of workers' processing skills and the drilling equipment itself, there is a problem that the drilling depth on the machine parts does not meet the standard (for example, the drilling depth is too shallow), which will have a certain adverse effect on the subsequent combination of different machine parts and the installation of other equipment.
[0003] In order to ensure that the drilling depth on the machine parts reaches the required depth, the prior art generally requires the inspection staff to insert the depth gauge into the corresponding hole for inspection. The above method detects the displayed data and requires the inspection staff to visually observe the scale digital value. In this way, when the inspection staff neglects to effectively put the lower end of the depth gauge into the lower end of the hole, and observes incorrectly (the scale numbers and lines on the depth gauge have the probability of observation errors when the inspection staff has poor eyesight or the light is not very good), it will cause errors in the inspection data. In addition, the existing depth gauge cannot actively remind the inspection staff when the depth of the hole to be inspected is too shallow (when the depth is too shallow, it will have an adverse effect on the stable installation of the corresponding machine parts), which will correspondingly have an adverse effect on the quality of the deep hole. In summary, it is very necessary to provide a depth measurement mechanism that can visually remind the inspection staff of the depth of the hole through a digital display screen, can prevent inspection data errors as much as possible, and can promptly remind the inspection staff when the depth of the inspection is too shallow. Utility Model Content
[0004] In order to overcome the drawbacks of existing machine parts depth detection equipment due to structural limitations as described in the background, the utility model provides a new machine parts hole depth measurement mechanism that is particularly suitable for hole depth detection of batch machines. Under the joint action of relevant mechanisms, after the inspector places the detection head on the detection station, the depth data can be automatically displayed on the LCD screen. The detection displayed data is more intuitive, and when the depth in the hole is too shallow, the inspector can be intuitively prompted through the sound and light alarm, thereby reducing the probability of data deviation caused by human detection errors of the inspectors.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A novel mechanical component hole depth measuring mechanism comprises a shell and a laser ranging module, and is characterized in that it also comprises a detection circuit, a magnet attraction mechanism and a display circuit; a handle is installed at the lower end of the shell, the laser ranging module, the detection circuit and the display circuit are installed in the shell, the front end of the detection head of the laser ranging module is located at the front outer end of the shell, the signal input end of the detection circuit and the display circuit is electrically connected to the signal output end of the laser ranging module; the magnet attraction mechanism comprises a fixed tube, a movable rod and a magnet, a fixed seat is installed at the upper end of the shell, the fixed seat and the rear end of the fixed tube are installed together, the fixed tube has an internal thread, the movable rod has an external thread, the rear end of the movable rod and the inside of the fixed tube are installed together through threads, and the rear side of the magnet is installed at the front side end of the movable rod.
[0007] Furthermore, the display circuit includes an electrically connected resistor and a voltmeter, one end of the first resistor is connected to one end of the second resistor and the positive power input terminal of the voltmeter, and the other end of the second resistor is connected to the negative power input terminal of the voltmeter.
[0008] Furthermore, the detection circuit includes an electrically connected adjustable resistor and a resistor transistor, a buzzer, and a relay, the positive power input terminal of the relay is connected to the control power input terminal, the normally closed contact terminal of the relay is connected to the positive power input terminal of the buzzer, one end of the adjustable resistor is connected to one end of the first resistor and one end of the second resistor, the other end of the second resistor is connected to the base of the transistor, the collector of the transistor is connected to the negative power input terminal of the relay, and the other end of the first resistor is connected to the emitter of the transistor and the negative power input terminal of the buzzer.
[0009] Furthermore, the outer diameter of the magnet is smaller than the inner diameter of the deep hole.
[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) the present invention is particularly suitable for hole depth detection of batch machine parts. Under the joint action of relevant mechanisms, after the inspector places the detection head of the laser ranging module on the detection station, the display circuit can automatically display the depth data on the liquid crystal display screen. The detection and display data are more intuitive, which overcomes the probability of observing scale errors when the existing depth gauge inspectors have poor eyesight or the light is not very good; (2) under the joint action of the first and second detection circuits, when the depth in the detection hole is too shallow, the inspector can be intuitively prompted by the sound and light alarm, reducing the probability of data deviation caused by human errors of the inspectors. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0012] Figure 1 , 2 It is a schematic diagram of the structure of the utility model.
[0013] Figure 3This is a circuit diagram of the utility model. DETAILED DESCRIPTION
[0014] Figure 1 , 2 As shown in , 3, the novel machine hole depth measuring mechanism includes a housing 1, a battery G1, a charging socket CZ1, power switches S1 and S2, a laser ranging module W1, and also has a detection circuit 2, a magnet attraction mechanism 4, and a display circuit 5; a handle 101 is vertically welded on the outside of the lower end of the housing 1 (to facilitate hand-held operation by the staff), the battery G1, the charging socket CZ1, the power switches S1 and S2, the laser ranging module W1, the detection circuit 2, and the display circuit 5 are installed on the circuit board inside the housing 1, and the front end of the detection head of the laser ranging module W1 is located outside The middle part of the front outer end of the shell 1; the magnet attraction mechanism includes a fixed tube 41, a movable rod 42, and a magnet 43. A fixed seat 44 is welded to the outer side of the middle part of the upper end of the shell 1. The upper end of the fixed seat 44 and the rear side of the fixed tube 41 have an opening respectively. The upper end of the fixed seat 44 and the rear side of the fixed tube 41 are installed together with bolts through the openings. The fixed tube 41 has an internal thread, and the movable rod 42 has an external thread. The rear end of the movable rod 42 and the front inner part of the fixed tube 41 are installed together through threads, and the rear end of the magnet 43 (the outer diameter is smaller than the outer diameter of the deep hole) is glued to the front end of the movable rod 42.
[0015] Figure 1 , 2As shown in , 3, the display circuit includes resistors R1 and R2 and a liquid crystal display voltmeter V connected by circuit board wiring, one end of the first resistor R1 and one end of the second resistor R2 are connected to the positive power input terminal of the voltmeter V, and the other end of the second resistor R2 is connected to the negative power input terminal of the voltmeter V (the display interface is located outside the front opening of the shell 1, and the handles of the power switches S1 and S2 are located in the middle of the front outer end of the handle 101). The detection circuit includes an adjustable resistor RP1 and resistors R3 and R4, a transistor Q1, a buzzer B1, and a relay J1 connected through circuit board wiring. The positive power input end of the relay J1 is connected to the control power input end, the normally open contact end of the relay J1 is connected to the positive power input end of the buzzer B1, one end of the adjustable resistor RP1 is connected to one end of the first resistor R3 and one end of the second resistor R4, the other end of the second resistor R4 is connected to the base of the transistor Q1, the collector of the transistor Q1 is connected to the negative power input end of the relay J1, and the other end of the first resistor R3 is connected to the emitter of the transistor Q1 and the negative power input end of the buzzer B1. The two poles of the battery G1 and the charging socket CZ1 (the socket is located outside the opening at the left end of the shell, and the external power charger plug can be conveniently inserted into the charging socket to charge the battery G1) are connected by wires respectively; and are connected in series with the power input terminals 1 and 2 of the laser ranging module W1 through the power switch S1, and in series with the power input terminal of the detection circuit, the positive power input terminal of the buzzer B1, and the emitter of the transistor Q1 through the power switch S2. The other end of the adjustable resistor RP1 at the signal input terminal of the detection circuit, the other end of the resistor R1 at the signal input terminal of the display circuit, and the signal output terminal 3 of the laser ranging module W1 are connected by wires. The other ends of the resistors R2 and R3 are connected to the negative pole of the battery G1 through wires.
[0016] Figure 1 , 2As shown in , 3, the new type is particularly suitable for the hole depth detection of batch parts. After turning on the power switch S1, the display circuit and the laser distance measurement module W1 are powered on. During the specific detection, the inspector places the detection head of the laser distance measurement module W1 at the detection station (the detection head of the laser distance measurement module W1 is aligned with the outer end of the deep hole). After the laser beam emitted by the detection head of the laser distance measurement module W1 is irradiated into the deep hole, when the depth of the deep hole is relatively large, the voltage signal output by the 3rd pin of the laser distance measurement module W1 is relatively high, and vice versa, the voltage signal is relatively low; with the depth of the deep hole, the voltage signal output by the 3rd pin of the laser distance measurement module W1 enters the power input end of the voltmeter V through the resistor R1 and R2 voltage division, and the voltmeter V displays the voltage through the LCD screen. In this way, the inspector can know the specific depth of the deep hole in real time by visually observing the voltage number displayed by the voltmeter (the greater the depth of the deep hole, the greater the displayed voltage signal, and vice versa). Before the actual detection, the staff loosens the bolts for installing the fixed tube 41 and rotates the movable rod 42 forward, so that the magnet 43 (the outer diameter is smaller than the inner diameter of the deep hole) is located at the front end of the detection head of the outer shell and the laser ranging module W1. In this way, the measurement personnel can use the magnet 43 to attract the metal debris (steel material) in the deep hole to prevent adverse effects on the depth detection; after the attraction is completed, the staff rotates the movable rod 42 to the rear end to prevent adverse effects on the depth ranging work.
[0017] Figure 1 , 2 As shown in Figure 3, after the power switch S2 is turned on, the detection circuit is powered on and works (mainly used for deep hole detection that requires consistent drilling depth and has a large number of holes). When the depth in the deep hole is equal to or greater than the depth threshold set by the adjustable resistor RP1, the voltage output by pin 3 of the laser ranging module W1 is divided by the adjustable resistor RP1 and the resistor R3, and the resistor R4 steps down and limits the current to enter the base of the transistor Q1, which is higher than 0.7V. The transistor Q1 will be turned on, and the collector outputs a low level to enter the negative power input terminal of the relay J1. The relay J1 is energized to attract its control power input terminal and the normally closed contact terminal to open, and the buzzer B1 will not be powered on, indicating that the depth threshold of the deep hole is not too shallow. When the depth in the deep hole is less than the depth threshold set by the adjustable resistor RP1, the voltage output from pin 3 of the laser ranging module W1 is divided by the adjustable resistor RP1 and the resistor R3, and the resistor R4 reduces the voltage and limits the current to enter the base of the transistor Q1 below 0.7V. The transistor Q1 will cut off the collector and no longer enter the negative power input terminal of the relay J1 at a low level. The relay J1 loses power and no longer attracts its control power input terminal and the normally closed contact terminal to close. Then, the buzzer B1 will be powered on and sound, indicating that the depth of the deep hole is too shallow. The staff can conduct further manual inspections on the deep holes with depth problems and carry out targeted processing later (such as prompting the staff to drill again).
[0018] Figure 3As shown, transistor Q1 is a 9013 NPN transistor; buzzer B1 is a finished product of a continuous high-decibel buzzer alarm with a model of XF12V; the resistance values of resistors R1, R2, R3, and R4 are 47K (the larger the resistance value of R1, the greater the voltage division, so when the depth of the deep hole is greater, the voltage number displayed on the display table V is larger, and vice versa. In specific production, an adjustable resistor can be used instead. At the corresponding depth, such as 1 cm, when the number displayed on the voltmeter is 1V, then when the voltage is displayed, the resistance value is the resistance value required for specific production), 4.7K, 1K, and 100K; the resistance value of the adjustable resistor RP1 (the adjustment handle is located outside the opening at the front end of the shell) is 470K (the larger the resistance value is adjusted, the greater the voltage division, then the greater the depth of the deep hole, the buzzer B1 will alarm, that is, the deep hole detection The threshold is set relatively large, the smaller the resistance value is adjusted, the smaller the voltage division is, then the smaller the depth of the deep hole, the buzzer B1 will alarm, that is, the deep hole detection threshold is set relatively small. In specific applications, the first deep hole with a suitable depth is used as the threshold setting standard. The staff adjusts the resistance value of the adjustable resistor to the left or right. When it is just adjusted to the buzzer to sound, and adjusts the resistance value of the adjustable resistor RP1 in the opposite direction, when it is just adjusted to the buzzer not to sound, the resistance value of the adjustable resistor RP1 is adjusted to the required value); the battery G1 is a 12V / 2Ah lithium battery; the relay J1 model is DC12V; the laser ranging module W1 is a finished laser ranging sensor module model KLH-03T-20hz, which has two power input terminals and a signal output terminal. The farther the detected object is, the higher the output signal voltage is, and vice versa.
[0019] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the utility model.
[0020] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A novel machine hole depth measuring mechanism, comprising a housing and a laser ranging module, characterized in that: It also has a detection circuit, a magnet attraction mechanism, and a display circuit; a handle is installed at the lower end of the shell, and the laser ranging module, the detection circuit, and the display circuit are installed in the shell. The front end of the detection head of the laser ranging module is located at the front outer end of the shell, and the signal input end of the detection circuit and the display circuit is electrically connected to the signal output end of the laser ranging module; the magnet attraction mechanism includes a fixed tube, a movable rod, and a magnet. A fixed seat is installed at the upper end of the shell, and the fixed seat and the rear end of the fixed tube are installed together. The fixed tube has an internal thread, and the movable rod has an external thread. The rear end of the movable rod and the inside of the fixed tube are installed together through threads, and the rear side of the magnet is installed at the front side end of the movable rod.
2. The novel machine component hole depth measuring mechanism according to claim 1 is characterized in that: The display circuit includes an electrically connected resistor and a voltmeter, wherein one end of the first resistor is connected to one end of the second resistor and a positive power input terminal of the voltmeter, and the other end of the second resistor is connected to a negative power input terminal of the voltmeter.
3. The novel machine component hole depth measuring mechanism according to claim 1 is characterized in that: The detection circuit includes an electrically connected adjustable resistor and a resistor transistor, a buzzer, and a relay. The positive power input terminal of the relay is connected to the control power input terminal, the normally closed contact terminal of the relay is connected to the positive power input terminal of the buzzer, one end of the adjustable resistor is connected to one end of the first resistor and one end of the second resistor, the other end of the second resistor is connected to the base of the transistor, the collector of the transistor is connected to the negative power input terminal of the relay, and the other end of the first resistor is connected to the emitter of the transistor and the negative power input terminal of the buzzer.
4. The novel machine component hole depth measuring mechanism according to claim 1 is characterized in that: The outer diameter of the magnet is smaller than the inner diameter of the deep hole.