Internal threaded hole depth detection equipment

Abstract

The invention relates to the technical field of internal threaded hole depth detection, in particular to internal threaded hole depth detection equipment which comprises a connecting shaft, a detection probe, a bidirectional ratchet wrench, an encoder, a controller and a display screen. The bidirectional ratchet wrench can drive the detection probe to rotate through the connecting shaft; the surface of the detection probe is provided with a thread corresponding to the internal thread hole to be detected; the encoder is arranged on the connecting shaft and is used for recording information of the number of turns of rotation of the connecting shaft; the controller is electrically connected with the encoder, and the controller is used for calculating the depth of the internal threaded hole to be detected through a preset hole depth calculation formula based on the information recorded by the encoder and the preset thread pitch information of the threads of the detection probe; the display screen is used for displaying the depth, calculated by the controller, of the internal threaded hole to be detected. The encoder and the controller are matched to calculate the depth of the internal threaded hole to be detected, and compared with the prior art, the accuracy is higher, and the detection efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of internal thread hole depth detection, and in particular to an internal thread hole depth detection device. Background Art

[0002] The existing method for detecting the depth of an internal threaded hole is generally that an operator inserts or screws a detection workpiece into the internal threaded hole, and then obtains the depth value of the internal threaded hole by measuring the length of the detection workpiece entering the internal threaded hole. Since the existing method for detecting the depth of an internal threaded hole requires an operator to observe and measure the size with the naked eye, it is highly subjective and has a low accuracy rate. Summary of the invention

[0003] (I) The problem to be solved by the present invention is that the existing method for detecting the depth of an internal threaded hole requires the operator to observe and measure the size with the naked eye, which is highly subjective and has a low accuracy rate.

[0004] (II) Technical solution In order to solve the above technical problems, an embodiment of the present invention provides an internal threaded hole depth detection device, comprising: a connecting shaft, a detection probe, a bidirectional ratchet wrench, an encoder, a controller and a display screen; One end of the connecting shaft is detachably connected to the two-way ratchet wrench, and the other end is detachably connected to the detection probe, and the two-way ratchet wrench can drive the detection probe to rotate through the connecting shaft; The surface of the detection probe is provided with threads corresponding to the internal threaded hole to be detected; The encoder is arranged on the connecting shaft and is used to record the number of rotations of the connecting shaft; The controller is electrically connected to the encoder, and the controller is used to calculate the depth of the internal threaded hole to be detected through a preset hole depth calculation formula based on the information recorded by the encoder and the preset pitch information of the detection probe thread; The display screen is used to display the depth of the internal threaded hole to be detected calculated by the controller.

[0005] Furthermore, a receiving cavity is provided inside the connecting shaft; The internal thread hole depth detection device also includes a power supply and a signal transmitter; The encoder, the signal transmitter and the power supply are all arranged in the accommodating cavity. The power supply supplies power to the encoder and the signal transmitter. The encoder is electrically connected to the controller via the signal transmitter.

[0006] Furthermore, the shaft wall of the connecting shaft is provided with an opening communicating with the accommodating cavity; the shaft wall of the connecting shaft is provided with a cover plate for opening or closing the opening.

[0007] Furthermore, a sealing ring is provided between the cover plate and the opening.

[0008] Furthermore, a plurality of detection probes are provided, and the size specifications of each detection probe are different; and the controller is preset with the pitch information of the thread of each detection probe.

[0009] Furthermore, the bidirectional ratchet wrench is provided with a first square connector, and the end of the connecting shaft away from the detection probe is provided with a first connecting groove corresponding to the first square connector, and the first square connector is plugged into the first connecting groove.

[0010] Furthermore, the first square connector and the first connecting slot are also magnetically connected.

[0011] Furthermore, a second square connector is provided at one end of the connecting shaft away from the bidirectional ratchet wrench, a second connecting groove corresponding to the second square connector is provided on the detection probe, and the second square connector is plugged into the second connecting groove.

[0012] Furthermore, the second square connector and the second connecting groove are also magnetically connected.

[0013] Further, it also includes a sleeve; A self-lubricating sliding bearing is arranged in the sleeve, the connecting shaft is partially located in the sleeve and penetrates the self-lubricating sliding bearing, and the detection probe can be retracted into the sleeve along with the connecting shaft.

[0014] Beneficial effects of the present invention: The present invention provides an internal threaded hole depth detection device, comprising: a connecting shaft, a detection probe, a bidirectional ratchet wrench, an encoder, a controller and a display screen; one end of the connecting shaft is detachably connected to the bidirectional ratchet wrench, and the other end is detachably connected to the detection probe, and the bidirectional ratchet wrench can drive the detection probe to rotate through the connecting shaft; the surface of the detection probe is provided with a thread corresponding to the internal threaded hole to be detected; the encoder is provided on the connecting shaft and is used to record the number of rotations of the connecting shaft; the controller is electrically connected to the encoder, and the controller is used to calculate the depth of the internal threaded hole to be detected through a preset hole depth calculation formula based on the information recorded by the encoder and the preset pitch information of the detection probe thread; the display screen is used to display the depth of the internal threaded hole to be detected calculated by the controller. The detection probe, connecting shaft and two-way ratchet wrench are detachably connected, which is convenient for the storage of the internal threaded hole depth detection equipment; the depth of the internal threaded hole to be detected is calculated by the encoder and controller, which has higher accuracy and detection efficiency than the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic structural diagram of an internal thread hole depth detection tool provided in an embodiment of the present invention.

[0017] Icons: 1-connecting shaft; 11-accommodating chamber; 12-cover plate; 2-detection probe; 21-second square connector; 3-bidirectional ratchet wrench; 31-first square connector; 41-encoder; 42-power supply; 43-signal transmitter; 51-sleeve; 52-self-lubricating sliding bearing. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1 As shown, an embodiment of the present invention provides an internal threaded hole depth detection device, including: a connecting shaft 1, a detection probe 2, a two-way ratchet wrench 3, an encoder 41, a controller and a display screen; one end of the connecting shaft 1 is detachably connected to the two-way ratchet wrench 3, and the other end is detachably connected to the detection probe 2, and the two-way ratchet wrench 3 can drive the detection probe 2 to rotate through the connecting shaft 1; the surface of the detection probe 2 is provided with a thread corresponding to the internal threaded hole to be detected; the encoder 41 is provided on the connecting shaft 1, and is used to record the number of rotations of the connecting shaft 1; the controller is electrically connected to the encoder 41, and the controller is used to calculate the depth of the internal threaded hole to be detected through a preset hole depth calculation formula based on the information recorded by the encoder 41 and the preset pitch information of the detection probe 2 thread; the display screen is used to display the depth of the internal threaded hole to be detected calculated by the controller. The internal thread hole depth detection device provided in this embodiment is used to detect the depth of the internal thread hole to be detected. The internal thread hole depth detection device includes a connecting shaft 1, a detection probe 2, a two-way ratchet wrench 3, an encoder 41, a controller and a display screen. Among them, the connecting shaft 1 is used to connect the two-way ratchet wrench 3 and the detection probe 2, and to provide installation space for electrical components such as the encoder 41. One end of the connecting shaft 1 is detachably connected to the two-way ratchet wrench 3, and the other end is detachably connected to the detection probe 2, so that the internal thread hole depth detection device can be easily stored; when the two-way ratchet wrench 3, the connecting shaft 1 and the detection probe 2 are connected in sequence, the two-way ratchet wrench 3 drives the detection probe 2 to rotate through the connecting shaft 1. The outer surface of the detection probe 2 is engraved with threads, and the threads correspond to the internal thread hole to be detected, so that the detection probe 2 can be screwed into the internal thread hole to be detected. A two-way ratchet wrench 3 is used to drive the detection probe 2 to rotate. By adjusting the paddle, it can provide clockwise torque and counterclockwise torque, which is convenient for the operator to screw the detection probe 2 into or out of the internal threaded hole to be detected. The handle is long and can provide a large torque under the condition of using less force, which is convenient for the operator to use. The encoder 41 is arranged on the connecting shaft 1, and is used to record the number of rotations of the connecting shaft 1 when the connecting shaft 1 rotates. Since the detection probe 2 rotates synchronously with the connecting shaft 1 when the connecting shaft 1 rotates, the number of rotations of the connecting shaft 1 is also the number of rotations of the detection probe 2. The controller is electrically connected to the encoder 41, and the controller can receive the number of rotations of the connecting shaft 1 recorded by the encoder 41. The controller is also preset with the pitch information of the thread of the detection probe 2, and the hole depth calculation formula is preset, so that the controller can calculate the depth of the internal threaded hole to be detected based on the information recorded by the encoder 41 and the preset pitch information of the thread of the detection probe 2 through the preset hole depth calculation formula; the controller calculates the depth of the internal threaded hole to be detected and displays it on the display screen. The hole depth calculation formula is L=P×N, where L is the depth of the internal threaded hole to be detected, P is the pitch of the thread of the detection probe 2, and N is the number of revolutions of the detection probe 2 during the detection process.

[0020] When in use, the detection probe 2, the connecting shaft 1 and the two-way ratchet wrench 3 are assembled in sequence, the detection probe 2 is aligned with the internal threaded hole to be detected, and then the detection probe 2 is screwed into the internal threaded hole through the two-way ratchet wrench 3. When the detection probe 2 cannot continue to rotate, it means that the detection probe 2 has reached the bottom of the internal threaded hole to be detected. At this time, the controller can calculate the depth of the internal threaded hole to be detected according to the above-mentioned hole depth calculation formula.

[0021] The internal threaded hole depth detection equipment provided in this embodiment has a detachable connection between the detection probe 2, the connecting shaft 1 and the bidirectional ratchet wrench 3, which is convenient for the storage of the internal threaded hole depth detection equipment; the depth of the internal threaded hole to be detected is calculated by the encoder 41 and the controller, which has higher accuracy and higher detection efficiency than the prior art.

[0022] The internal thread hole depth detection device provided by the embodiment of the present invention is as follows: Figure 1 As shown, a receiving cavity 11 is provided inside the connecting shaft 1; the internal threaded hole depth detection device also includes a power supply 42 and a signal transmitter 43; the encoder 41, the signal transmitter 43 and the power supply 42 are all arranged in the receiving cavity 11, the power supply 42 supplies power to the encoder 41 and the signal transmitter 43, and the encoder 41 is electrically connected to the controller through the signal transmitter 43.

[0023] In this embodiment, the internal threaded hole depth detection device also includes a power supply 42 and a signal transmitter 43; the encoder 41 is electrically connected to the signal transmitter 43, and is electrically connected to the above-mentioned controller through the signal transmitter 43, so that the information recorded by the encoder 41 can be transmitted to the controller, the encoder 41 adopts an absolute encoder 41 or an incremental encoder 41, the signal transmitter 43 adopts a high-frequency Bluetooth transmitter or other wireless transmitters, etc., and the power supply 42 can adopt a button battery / button battery; the interior of the connecting shaft 1 is provided with a receiving chamber 11 for accommodating the above-mentioned encoder 41, signal transmitter 43 and power supply 42, and the power supply 42 is electrically connected to the encoder 41 and the signal transmitter 43 and is used to power the encoder 41 and the signal transmitter 43. By providing the receiving chamber 11 inside the connecting shaft 1 to accommodate the encoder 41, the signal transmitter 43 and the power supply 42, it is possible to provide protection for the encoder 41, the signal transmitter 43 and the power supply 42 to avoid damage to the encoder 41, the signal transmitter 43 and the power supply 42.

[0024] The internal thread hole depth detection device provided by the embodiment of the present invention is as follows: Figure 1 As shown, the shaft wall of the connecting shaft 1 is provided with an opening communicating with the accommodating cavity 11; the shaft wall of the connecting shaft 1 is provided with a cover plate 12 for opening or closing the opening.

[0025] In this embodiment, the accommodating chamber 11 is connected to the outside through an opening. One end of the accommodating chamber 11 is open to form the above-mentioned opening, and the opening is located on the shaft wall of the connecting shaft 1; the shaft wall of the connecting shaft 1 is also provided with a detachable cover plate 12 for opening or closing the opening to facilitate the replacement of the power supply 42 and the maintenance of the structure inside the accommodating chamber 11.

[0026] The internal thread hole depth detection device provided by the embodiment of the present invention is as follows: Figure 1 As shown, a sealing ring is arranged between the cover plate 12 and the opening.

[0027] In this embodiment, a sealing ring is provided between the cover plate 12 and the opening to improve the sealing performance and protect structures such as the encoder 41 , the signal transmitter 43 and the power supply 42 in the accommodating cavity 11 .

[0028] The internal thread hole depth detection device provided by the embodiment of the present invention is as follows: Figure 1 As shown, a plurality of detection probes 2 are provided, and the size specifications of each detection probe 2 are different; the controller is preset with the pitch information of the thread of each detection probe 2.

[0029] In this embodiment, preferably, a plurality of detection probes 2 are provided, and each detection probe 2 corresponds to an internal threaded hole to be detected of a size specification, thereby improving the applicability of the internal threaded hole depth detection device, and being able to perform depth detection on internal threaded holes to be detected of various sizes and specifications. Furthermore, the controller is preset with the pitch information of the threads of each of the above detection probes 2. When in use, the corresponding detection probe 2 can be selected through the display screen, so that the subsequent controller can calculate the depth of the internal threaded hole to be detected based on the pitch of the thread of the detection probe 2.

[0030] The internal thread hole depth detection device provided by the embodiment of the present invention is as follows: Figure 1 As shown, the bidirectional ratchet wrench 3 is provided with a first square connector 31, and the end of the connecting shaft 1 away from the detection probe 2 is provided with a first connecting groove corresponding to the first square connector 31, and the first square connector 31 is plugged into the first connecting groove.

[0031] In this embodiment, a first square connector 31 is provided at the output end of the bidirectional ratchet wrench 3, and a first connecting groove is provided at the end of the connecting shaft 1 away from the detection probe 2, and the shape of the first connecting groove matches the shape of the first square connector 31; a detachable connection is achieved between the connecting shaft 1 and the bidirectional ratchet wrench 3 through the cooperation of the first square connector 31 and the first connecting groove.

[0032] Optionally, in the present embodiment, the bidirectional ratchet wrench 3 and the connecting shaft 1 may also be connected by means of a snap connection or a pin connection, which can also achieve the purpose of a detachable connection between the bidirectional ratchet wrench 3 and the connecting shaft 1 in the present embodiment.

[0033] Preferably, in the internal threaded hole depth detection device provided by the embodiment of the present invention, the first square connector 31 and the first connecting groove are also magnetically connected.

[0034] In this embodiment, the first square connector 31 is also magnetically connected to the first connector slot to prevent the first square connector 31 from falling out of the first connector slot. Optionally, a magnet is provided on at least one of the first square connector 31 and the first connector slot so that the first square connector 31 and the first connector slot can be attracted to each other, or magnets are provided on both the first square connector 31 and the first connector slot so that the first square connector 31 and the first connector slot can be attracted to each other.

[0035] The internal thread hole depth detection device provided by the embodiment of the present invention is as follows: Figure 1 As shown, the end of the connecting shaft 1 away from the bidirectional ratchet wrench 3 is provided with a second square connector 21, and the detection probe 2 is provided with a second connecting groove corresponding to the second square connector 21, and the second square connector 21 is plugged into the second connecting groove.

[0036] In this embodiment, a second square connector 21 is provided at the end of the connecting shaft 1 away from the bidirectional ratchet wrench 3, and a second connecting groove is provided at the end of the detection probe 2, and the shape of the second connecting groove matches the shape of the second square connector 21; the connecting shaft 1 and the detection probe 2 are detachably connected through the cooperation of the second square connector 21 and the second connecting groove.

[0037] Optionally, in the present embodiment, the detection probe 2 and the connecting shaft 1 may be connected by means of a snap connection or a pin connection, which can also achieve the purpose of detachable connection between the detection probe 2 and the connecting shaft 1 in the present embodiment.

[0038] Preferably, in the internal threaded hole depth detection device provided by an embodiment of the present invention, the second square connector 21 and the second connecting groove are also magnetically connected.

[0039] In this embodiment, the second square connector 21 is also magnetically connected to the second connector slot to prevent the second square connector 21 from falling out of the second connector slot. Optionally, a magnet is provided on at least one of the second square connector 21 and the second connector slot so that the second square connector 21 and the second connector slot can be attracted to each other, or a magnet is provided on both the second square connector 21 and the second connector slot so that the second square connector 21 and the second connector slot can be attracted to each other.

[0040] The internal thread hole depth detection device provided by the embodiment of the present invention is as follows: Figure 1 As shown, it also includes a sleeve 51; a self-lubricating sliding bearing 52 is provided in the sleeve 51, the connecting shaft 1 is partially located in the sleeve 51 and penetrates the self-lubricating sliding bearing 52, and the detection probe 2 can be retracted into the sleeve 51 along with the connecting shaft 1.

[0041] In this embodiment, the sleeve 51 is used to improve the stability of the internal thread hole depth detection device. When in use, the detection probe 2 is aligned with the internal thread hole to be detected. At this time, the sleeve 51 can be pressed against the outer edge of the internal thread hole to be detected. The connecting shaft 1 can rotate and slide axially in the self-lubricating sliding bearing 52.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, 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.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the inside of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An internal thread hole depth detection device, characterized in that: include: A connecting shaft (1), a detection probe (2), a bidirectional ratchet wrench (3), an encoder (41), a controller and a display screen; One end of the connecting shaft (1) is detachably connected to the bidirectional ratchet wrench (3), and the other end is detachably connected to the detection probe (2); the bidirectional ratchet wrench (3) can drive the detection probe (2) to rotate via the connecting shaft (1); The surface of the detection probe (2) is provided with threads corresponding to the internal threaded hole to be detected; The encoder (41) is arranged on the connecting shaft (1) and is used to record information on the number of rotations of the connecting shaft (1); The controller is electrically connected to the encoder (41), and is used to calculate the depth of the internal threaded hole to be detected by a preset hole depth calculation formula based on the information recorded by the encoder (41) and the preset pitch information of the thread of the detection probe (2); The display screen is used to display the depth of the internal threaded hole to be detected calculated by the controller.

2. The internal thread hole depth detection device according to claim 1, characterized in that: The connecting shaft (1) is provided with a receiving cavity (11) inside; The internal thread hole depth detection device further comprises a power supply (42) and a signal transmitter (43); The encoder (41), the signal transmitter (43) and the power supply (42) are all arranged in the accommodating cavity (11); the power supply (42) supplies power to the encoder (41) and the signal transmitter (43); and the encoder (41) is electrically connected to the controller via the signal transmitter (43).

3. The internal thread hole depth detection device according to claim 2, characterized in that: The shaft wall of the connecting shaft (1) is provided with an opening communicating with the accommodating cavity (11); and the shaft wall of the connecting shaft (1) is provided with a cover plate (12) for opening or closing the opening.

4. The internal thread hole depth detection device according to claim 3, characterized in that: A sealing ring is provided between the cover plate (12) and the opening.

5. The internal thread hole depth detection device according to claim 1, characterized in that: A plurality of the detection probes (2) are provided, and the size specifications of each detection probe (2) are different; and the controller is preset with the pitch information of the thread of each detection probe (2).

6. The internal thread hole depth detection device according to claim 1, characterized in that: The bidirectional ratchet wrench (3) is provided with a first square connector (31), and an end of the connecting shaft (1) away from the detection probe (2) is provided with a first connecting groove corresponding to the first square connector (31), and the first square connector (31) is plugged into the first connecting groove.

7. The internal thread hole depth detection device according to claim 6, characterized in that: The first square connector (31) and the first connecting groove are also magnetically connected.

8. The internal thread hole depth detection device according to claim 1, characterized in that: A second square connector (21) is provided at one end of the connecting shaft (1) away from the bidirectional ratchet wrench (3), a second connecting groove corresponding to the second square connector (21) is provided on the detection probe (2), and the second square connector (21) is plugged into the second connecting groove.

9. The internal thread hole depth detection device according to claim 8, characterized in that: The second square connecting head (21) and the second connecting groove are also magnetically connected.

10. The internal thread hole depth detection device according to claim 9, characterized in that: Also includes a sleeve (51); A self-lubricating sliding bearing (52) is provided in the sleeve (51), the connecting shaft (1) is partially located in the sleeve (51) and penetrates the self-lubricating sliding bearing (52), and the detection probe (2) can be retracted into the sleeve (51) along with the connecting shaft (1).

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