CN216485567U

CN216485567U - Thread detection device

Info

Publication number: CN216485567U
Application number: CN202121591974.3U
Authority: CN
Inventors: 诸卫东
Original assignee: Shanghai Xinpeng Metal Products Co ltd
Current assignee: Shanghai Xinpeng Metal Products Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2022-05-10
Anticipated expiration: 2031-07-13

Abstract

The utility model discloses a thread detection device, which comprises a supporting block, wherein a mounting through hole and a transition hole are arranged in the supporting block, a groove is arranged at the first surface of the supporting block, one end of the transition hole is communicated with the mounting through hole, an opening is formed at the bottom of the groove at the other end of the transition hole, and a channel for transmitting light beams is formed by the inner wall of the mounting through hole, the inner wall of the transition hole, the opening and the inner wall of the groove in a limiting manner; a photoelectric detection assembly is arranged in the mounting through hole, the photoelectric detection assembly is away from the opening by a first preset distance, the axes of the mounting through hole, the transition hole and the photoelectric detection assembly are all overlapped, and the axis and the first surface form a first angle; the photoelectric detection assembly can emit light beams into the channel, the photoelectric detection assembly can receive the reflected light beams from the channel and output first signals, and the inner walls of the installation through holes, the inner walls of the transition holes and the inner walls of the grooves do not shield the light beams. The device of this scheme is comparatively simple, and easily processing compares with prior art, practices thrift the cost more.

Description

Thread detection device

Technical Field

The utility model relates to the technical field of thread detection, in particular to a thread detection device.

Background

In the production process of automobile parts, whether the parts are processed with threads or not needs to be detected so as to judge whether the parts are qualified or not.

A thread testing machine is disclosed in patent document CN202022359857.6, in which are mentioned: the device comprises a foundation plate, a threaded workpiece and a placing tool, wherein the placing tool is arranged above the foundation plate and is used for supporting the threaded workpiece; the Z-axis moving mechanism is arranged below the placing tool and is used for moving the placing tool up and down along a Z axis; the manipulator is arranged above the foundation plate to play a role in carrying; and the thread detection tool is arranged on the manipulator and is used for detecting a thread workpiece on the placing tool. "

When the detection tool works, the manipulator drives the thread detection tool to move, the motor drives the rotating shaft to rotate, the rotating shaft drives the thread gauge on the rotating shaft to rotate, and the thread gauge enters the threaded hole of the threaded workpiece and contacts with the thread teeth to complete the detection work of the threaded workpiece.

In the prior art, in order to detect whether the thread is missed, a detection method that a thread gauge is screwed into a thread workpiece is adopted, so that the thread gauge (detection tool) is in direct contact with the internal thread of the thread workpiece, the surface of the internal thread of the workpiece is easily abraded, the device is complex, the processing difficulty is high, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the thread detection device which can complete detection without contacting with a thread workpiece and has a more simplified structure.

The utility model is realized by the following technical scheme:

a thread detection device comprises a supporting block, wherein a mounting through hole and a transition hole are arranged in the supporting block, a groove is formed in the first surface of the supporting block, one end of the transition hole is communicated with the mounting through hole, an opening is formed in the bottom of the groove at the other end of the transition hole, and a channel for light beam transmission is formed by limiting the inner wall of the mounting through hole, the inner wall of the transition hole, the opening and the inner wall of the groove;

a photoelectric detection assembly is arranged in the mounting through hole, the photoelectric detection assembly is away from the opening by a first preset distance, the axes of the mounting through hole, the transition hole and the photoelectric detection assembly are all overlapped, and the axis and the first surface form a first angle;

the photoelectric detection assembly can emit light beams into the channel, the photoelectric detection assembly can receive the reflected light beams from the channel and output first signals, and the inner walls of the installation through holes, the inner walls of the transition holes and the inner walls of the grooves do not shield the light beams.

Furthermore, the photoelectric detection device also comprises a first alarm which can send a primary alarm signal according to the first signal output by the photoelectric detection component.

Furthermore, a supporting bulge is arranged on the supporting block, and the supporting bulge and the supporting block are integrally processed and formed.

Further, be equipped with a plurality of inductors that are close on the supporting shoe, a plurality of inductors that are close distribute in supporting bellied both ends, are close the inductor exportable second signal.

Furthermore, the device also comprises a second alarm which can send out a secondary alarm signal according to a second signal output by the proximity sensors.

Furthermore, the photoelectric detection assembly comprises a photoelectric sensor and a directional fixing frame, and the directional fixing frame is sleeved on the outer surface of the photoelectric sensor and is arranged in the mounting through hole together.

Further, the first angle is 60 °.

Compared with the prior art, the utility model has the advantages that:

1. whether the thread of the threaded workpiece is machined or not is detected through the photoelectric detection assembly, so that the purpose of detecting whether the thread of the threaded workpiece is machined or not is achieved under the condition that the thread is not contacted, and the scheme avoids abrasion and damage to the thread of the threaded workpiece; further, the device of this scheme is comparatively simple, and easily processing compares with prior art, practices thrift the cost more.

Drawings

FIG. 1 is an exploded view of the thread detecting device according to the present invention;

FIG. 2 is an assembled view of the structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the structure of FIG. 1;

FIG. 4 is a schematic view of the emission and reflection paths of a light beam as it is being used to machine threads on a threaded workpiece;

FIG. 5 is a schematic view of the beam emission and reflection paths of a threaded workpiece when threads are not being machined.

Reference numbers in the figures: the device comprises an equal-height block 1, a second alarm 2, a foundation plate 3, a supporting block 4, a proximity sensor 5, a sensor support 6, a threaded workpiece 7, a directional fixing frame 9, a photoelectric detection assembly 10, a supporting protrusion 401, an installation through hole 402, a first surface 403, a transition hole 404, a groove 405, an opening 406, a first alarm 11 and a photoelectric sensor 12.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1 to 3, a thread detecting apparatus according to a preferred embodiment of the present invention includes a supporting block 4, a mounting through hole 402 and a transition hole 404 are disposed in the supporting block 4, a groove 405 is disposed on a first surface 403 of the supporting block 4, one end of the transition hole 404 is communicated with the mounting through hole 402, an opening 406 is formed at the bottom of the groove 405, and a channel for transmitting a light beam is defined by an inner wall of the mounting through hole 402, an inner wall of the transition hole 404, the opening 406, and an inner wall of the groove 405; the photoelectric detection assembly 10 is arranged in the installation through hole 402, the photoelectric detection assembly 10 is away from the opening 406 by a first preset distance, the axes of the installation through hole 402, the transition hole 404 and the photoelectric detection assembly 10 are all overlapped, and the axis and the first surface 403 form a first angle; the photo detection element 10 may emit a light beam into the channel, the photo detection element 10 may receive the reflected light beam from the channel and output a first signal, and the inner walls of the installation through hole 402, the transition hole 404, and the groove 405 do not block the light beam.

Specifically, the mounting through hole 402 and the transition hole 404 are both circular through holes, the groove 405 is a cylindrical groove, the first preset interval is greater than 0mm, the first angle is 60 ° ± 1 °, and the first angle is preferably 60 °.

With further reference to fig. 1 and 3, the photoelectric detection assembly 10 includes a photoelectric sensor 12 and an orientation fixture 9, and the orientation fixture 9 is sleeved on an outer surface of the photoelectric sensor 12 and is installed in the installation through hole 402 together. The photoelectric detection device also comprises a first alarm 11, wherein the first alarm 11 can send a primary alarm signal according to the first signal output by the photoelectric detection assembly 10.

Specifically, each photoelectric sensor 12 corresponds to 1 directional fixing frame 9, the directional fixing frames 9 are of annular thin-wall structures, internal threads are machined on the inner surfaces of the directional fixing frames 9, external threads are machined on part of the outer surfaces of the photoelectric sensors 12, and the directional fixing frames 9 are sleeved on the outer surfaces of the photoelectric sensors 12 and are in threaded connection with the photoelectric sensors 12; the directional fixing frame 9 and the photoelectric sensor 12 are arranged in the installation through hole 402 together, and the outer wall of the directional fixing frame 9 is in interference fit with the inner wall of the installation through hole 402, so that the purpose that the photoelectric sensor 12 is arranged in the installation through hole 402 is achieved; the photoelectric sensor 12 can emit a light beam outwards along the axial direction thereof, and can also receive the reflected light beam and output a first signal.

The scheme also comprises a controller (not shown), wherein the controller is in communication connection with the photoelectric sensor 12 and the first alarm 11; when the photoelectric sensor 12 receives the reflected light beam, the photoelectric sensor 12 outputs a first signal to the controller, and when the photoelectric sensor 12 does not receive the reflected light beam, the photoelectric sensor 12 does not send a signal; after receiving the first signal, the controller may control the first alarm 11 to send a primary alarm signal, where the primary alarm signal may be a sound or a light, and is not limited herein; preferably, the first alarm 11 is a red-green signal lamp a, after the controller receives the first signal, the controller controls a green light of the red-green signal lamp a to be turned on, and when the controller does not receive the first signal, the controller controls a red light of the red-green signal lamp a to be turned on. Preferably, the photosensor 12 is a LSD-V11 photosensor available from Lordan.

Preferably, the intelligent control system further comprises a buzzer, and the buzzer is in communication connection with the controller; when the controller receives the first signal, the controller controls a green light of the red and green signal lamp A to be lightened, and the buzzer does not make a sound; when the controller does not receive the first signal, the controller controls the red light of the traffic signal lamp A to be lightened, and meanwhile the controller controls the buzzer to sound.

Referring further to fig. 1, the supporting block 4 is provided with a supporting protrusion 401, and the supporting protrusion 401 is integrally formed with the supporting block 4.

Specifically, the supporting protrusion 401 is a profiling structure, and is matched with the shape of the threaded workpiece 7, when the threaded workpiece 7 is placed on the supporting block 4, the supporting protrusion 401 directly forms a supporting force for the threaded workpiece 7, and the threaded workpiece 7 is not required to be supported and fixed by means of other external structures, when the threaded workpiece 7 is correctly placed on the supporting protrusion 401, each part of the inner surface of the threaded workpiece 7 is attached to each part of the outer surface of the supporting protrusion 401, and when the threaded workpiece 7 is not correctly placed on the supporting protrusion 401, only part of the inner surface of the threaded workpiece 7 is attached to the outer surface of the supporting protrusion 401; the threaded workpiece 7 comprises a left part and a right part which are structurally symmetrical, and correspondingly, the supporting protrusions 401 are also divided into left protrusions and right protrusions, the left protrusions correspond to the left part, and the right protrusions correspond to the right part; optionally, only 1 left protrusion is arranged on the supporting block 4, and is used for supporting a left part of the threaded workpiece 7; or only 1 right bulge is arranged on the supporting block 4 and used for supporting the right part of the threaded workpiece 7; or, the supporting block 4 is provided with a left protrusion and a right protrusion at the same time for supporting the left part and the right part of the threaded workpiece 7 at the same time.

Referring to fig. 1, a plurality of proximity sensors 5 are disposed on the supporting block 4, the proximity sensors 5 are distributed at two ends of the supporting protrusion 401, and the proximity sensors 5 can output a second signal; the second alarm 2 is further included, and the second alarm 2 can send out a secondary alarm signal according to second signals output by the proximity sensors 5.

Specifically, the outer side of the proximity sensor 5 is sleeved with the sensor support 6, each proximity sensor 5 corresponds to 1 sensor support 6, the proximity sensor 5 is in threaded connection with the sensor support 6, a plurality of placing holes are formed in two ends of the supporting protrusion 401, when the sensor support 6 and the proximity sensor 5 are arranged in the placing holes together, the outer wall of the sensor support 6 is in interference fit with the inner wall of the placing holes, so that the proximity sensors 5 can be installed in the placing holes, and optionally, the sensor support 6 and the inner wall of the placing holes can also be in other fixed connection forms in the prior art, and no specific limitation is imposed on the connection form; the proximity sensor 5 and the second alarm 2 are in communication connection with the controller; the proximity sensor 5 can test whether an object enters the magnetic field radiated by the proximity sensor 5 in real time, and when the object enters the magnetic field radiated by the proximity sensor 5, the proximity sensor sends a second signal to the controller; when no object enters the magnetic field radiated by the proximity sensor 5, the proximity sensor does not send a signal, preferably, the proximity sensor 5 is a proximity sensor product of Shanghai factory model number LJ5A 3-1-Z/BX; the secondary alarm signal may be sound or light, and is not particularly limited herein, preferably, the second alarm 2 is a red-green signal lamp B, when the threaded workpiece 7 is not sleeved on the support protrusion 401 and the threaded workpiece 7 does not enter a magnetic field radiated by any one of the proximity sensors 5, any one of the proximity sensors 5 does not emit a second signal and transmits the second signal to the controller, at this time, the controller controls a red lamp and a green lamp of the second alarm 2 to be not lit, when the threaded workpiece 7 is sleeved on the support protrusion 401 and the threaded workpiece 7 is completely attached to the support protrusion 401, the threaded workpiece 7 simultaneously enters the magnetic fields radiated by the plurality of proximity sensors 5, the plurality of proximity sensors 5 all output the second signal, at this time, the controller controls the green lamp of the second alarm 2 to be lit, when the threaded workpiece 7 does not enter the magnetic fields radiated by all the proximity sensors 5, that is, when the threaded workpiece 7 is not completely attached to the support protrusion 401, then only part is close inductor 5 and outputs the second signal for the controller, and the red light of controller control second alarm 2 is bright this moment, and the user can be bright and learn the information that screw thread work piece 7 did not laminate with supporting protrusion 401 completely according to 2 red lights of second alarm, and then adjusts screw thread work piece 7 put angle and position, and the green light of until second alarm 2 is bright.

Further referring to fig. 1, the alarm device further comprises a foundation plate 3, wherein the supporting block 4, the first alarm device 11 and the second alarm device 2 are all arranged on the foundation plate 3, and the supporting block 4, the first alarm device 11 and the second alarm device 2 are connected with the foundation plate 3 through screws or bolts; the base plate is characterized by further comprising a plurality of equal-height blocks 1, wherein the equal-height blocks 1 are arranged in parallel relatively and are connected with the bottom surface of the base plate 3, and the equal-height blocks 1 can be connected with the base plate 3 through screws or bolts; a plurality of equal-height blocks 1 are used for supporting the foundation plate 3, so that a certain distance is reserved between the foundation plate 3 and the ground, an installation space is formed by limiting the equal-height blocks 1 of the foundation plate 3, the ground and the plurality of equal-height blocks, the installation space can be used for accommodating parts such as the first alarm 11 and the second alarm 2, and the space utilization rate of the thread detection device is improved.

With further reference to fig. 1 to 5, in use, the threaded workpiece 7 is placed on the supporting protrusion 401, the proximity sensors 5 measure simultaneously, when the red light of the second alarm 2 is on, it indicates that the threaded workpiece 7 is not correctly placed, the user can adjust the placing position and angle of the threaded workpiece 7 until the green light of the second alarm 2 is on, when the green light of the second alarm 2 is on, the axis of the through hole of the threaded workpiece 7 coincides with the axis of the groove 405, and the threaded workpiece 7 blocks the mouth of the groove 405; in this embodiment, the thread shape of the thread machined in the through hole of the threaded workpiece 7 is a regular triangle, the photoelectric sensor 12 emits a light beam into the channel, if the thread is machined in the through hole of the threaded workpiece 7, the light beam irradiates one side surface of the thread of the threaded workpiece 7 through the channel, the surface is one side surface of the thread close to the photoelectric sensor 12, because the emitting direction of the light beam is approximately perpendicular to the surface, the light beam is reflected by the surface of the thread, after the photoelectric sensor 12 receives the reflected light beam, the photoelectric sensor 12 outputs a first signal to the controller, after receiving the first signal, the controller can control the green light of the first alarm 11 to be turned on, and a user can know that the thread is machined in the through hole of the threaded workpiece 7 through the green light; if the screw thread is missed in the through-hole of screw thread work piece 7, when no screw thread was in the through-hole of screw thread work piece 7 promptly, the light beam shines on the through-hole inner wall of screw thread work piece 7 through the passageway, the light beam gets into the external world after the diffuse reflection, can't form the reflected beam towards photoelectric detection subassembly 10, photoelectric detection subassembly 10 does not receive the reflected beam, photoelectric sensing ware 12 does not give off signals, red light that controller control traffic signal lamp A lights, bee calling organ sends the buzzing sound, at this moment, user's accessible red light lights and bee calling organ's buzzing sound learns not to process the screw thread on the through-hole inner wall of screw thread work piece 7. According to the scheme, whether the thread of the threaded workpiece is machined or not is detected through the photoelectric detection assembly, so that the purpose of detecting whether the thread of the threaded workpiece is machined or not is achieved under the condition that the threaded workpiece is not contacted with the thread, and the thread of the threaded workpiece is prevented from being abraded and damaged; further, the device of this scheme is comparatively simple, and easily processing compares with prior art, practices thrift the cost more.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The thread detection device is characterized by comprising a supporting block (4), wherein a mounting through hole (402) and a transition hole (404) are arranged in the supporting block (4), a groove (405) is formed in a first surface (403) of the supporting block (4), one end of the transition hole (404) is communicated with the mounting through hole (402), an opening (406) is formed in the bottom of the groove (405) at the other end of the transition hole (404), and a channel for light beam transmission is formed by limiting the inner wall of the mounting through hole (402), the inner wall of the transition hole (404), the opening (406) and the inner wall of the groove (405);

a photoelectric detection assembly (10) is arranged in the mounting through hole (402), the photoelectric detection assembly (10) is away from the opening (406) by a first preset distance, the axes of the mounting through hole (402), the transition hole (404) and the photoelectric detection assembly (10) are all overlapped, and the axes and the first surface (403) form a first angle;

the photoelectric detection assembly (10) can emit a light beam into the channel, the photoelectric detection assembly (10) can receive the reflected light beam from the channel and output a first signal, and the inner wall of the mounting through hole (402), the inner wall of the transition hole (404) and the inner wall of the groove (405) do not block the light beam.

2. The thread detection device according to claim 1, further comprising a first alarm (11), wherein the first alarm (11) is capable of emitting a primary alarm signal according to the first signal output by the photoelectric detection assembly (10).

3. The thread detection device according to claim 2, wherein the support block (4) is provided with a support protrusion (401), and the support protrusion (401) is integrally formed with the support block (4).

4. The thread detection device according to claim 3, wherein the support block (4) is provided with a plurality of proximity sensors (5), the proximity sensors (5) are distributed at two ends of the support protrusion (401), and the proximity sensors (5) can output a second signal.

5. A thread detection device according to claim 4, further comprising a second alarm (2), the second alarm (2) being adapted to generate a secondary alarm signal in response to a second signal output by the plurality of proximity sensors (5).

6. The thread detection device according to claim 5, wherein the photoelectric detection assembly (10) comprises a photoelectric sensor (12) and an orientation fixture (9), and the orientation fixture (9) is sleeved on the outer surface of the photoelectric sensor (12) and is installed in the installation through hole (402) together.

7. The thread sensing device of claim 6, wherein the first angle is 60 °.