Detection system for taper and thread of internal taper thread

Abstract

The invention relates to the technical field of part detection equipment, in particular to an internal taper thread taper and thread detection system, which comprises a rack, a transfer device, a height detection device, a taper detection device and a thread detection device, the height detection device, the taper detection device and the thread detection device respectively detect a height characteristic value, a taper characteristic value and a thread characteristic value. The detection system for the taper and the thread of the internal taper thread has an automatic detection function, is high in automation degree, does not need manual guarding, and reduces manpower waste; in one set of detection process, the functions of height, taper and thread detection are realized, the detection rhythm is shortened, the production efficiency is improved, and comprehensive detection and comprehensive detection can be realized; a three-coordinate measuring instrument is not required, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of parts detection equipment, and in particular to a detection system for the taper and thread of an internal tapered thread. Background Art

[0002] Internal tapered thread is a common connector, widely used in pipes, valves and other equipment. Its taper and thread quality directly affect the sealing and stability of the connection. Therefore, it is very important to detect the taper and thread of the internal tapered thread. The taper of the internal tapered thread usually refers to the slope at which the diameter of the threaded hole gradually decreases as the depth increases.

[0003] Products with internal tapered threads often involve thread inspection during the production process. The inspection items include four important parameters: internal thread major diameter, internal thread minor diameter, internal thread pitch, and internal thread taper. Common automated inspection methods include optical inspection and contact inspection: 1. Optical inspection equipment cannot be used in internal thread inspection.

[0004] 2. In principle, the contact measuring equipment is actually a three-dimensional coordinate measuring machine. The above four important parameters can be detected by moving the detection head along the generatrix of the internal thread. This operation has two major disadvantages: first, the detection cycle is long and the efficiency is low. It cannot match the production efficiency on site and cannot achieve comprehensive or integrated detection; second, the cost of the three-dimensional coordinate measuring machine itself is extremely high. It is a waste of resources to use it on parts with low production precision requirements. Summary of the invention

[0005] The invention provides a detection system for the taper and thread of an internal tapered thread, which is used to solve the defects of long detection cycle and high cost in the taper and thread detection devices for internal tapered threads in the prior art.

[0006] The present invention provides a detection system for the taper and thread of an internal tapered thread, comprising: A rack, the rack comprising: a platform frame and a back plate fixed on the platform frame; A transfer device, the transfer device comprising: a clamping mechanism and a characteristic value detection mechanism, the clamping mechanism and the characteristic value detection mechanism are movably arranged on the platform frame; A height detection device is provided on the back plate, and the characteristic value detection mechanism can obtain the height characteristic value detected by the height detection device; A taper detection device is provided on the back plate, and the characteristic value detection mechanism can obtain the taper characteristic value detected by the taper detection device; The thread detection device is arranged on the back plate, and the characteristic value detection mechanism can obtain the thread characteristic value detected by the thread detection device.

[0007] According to the detection system for the taper and thread of the internal tapered thread provided by the present invention, the transfer device comprises: A horizontal driving member, wherein the extending direction of the horizontal driving member is parallel to the arrangement direction of the height detection device, the taper detection device and the thread detection device; A floating platform is movably disposed on the horizontal driving member, and the clamping mechanism and the characteristic value detection mechanism are both fixed on the floating platform.

[0008] According to the detection system for the taper and thread of internal tapered threads provided by the present invention, the transfer device also includes: a rotary and telescopic driving member, which is connected between the floating platform and the characteristic value detection mechanism, and is used to drive the characteristic value detection mechanism to rotate and telescope to avoid the height detection device, the taper detection device and the thread detection device, or to dock with any one of the height detection device, the taper detection device and the thread detection device.

[0009] According to the detection system for the taper and thread of an internal tapered thread provided by the present invention, the floating platform includes an XY-axis floating platform.

[0010] According to the detection system for the taper and thread of the internal tapered thread provided by the present invention, the height detection device comprises: A first lifting driving member, wherein a fixed end of the first lifting driving member is disposed on the back plate; The height detection pressing block is connected to the movable end of the first lifting drive member and is used to detect the height characteristic value of the part to be tested.

[0011] According to the detection system for the taper and thread of the internal tapered thread provided by the present invention, the height detection device further comprises: a first floating joint connected between the movable end of the first lifting drive member and the height detection pressing block.

[0012] According to the detection system for the taper and thread of an internal tapered thread provided by the present invention, the taper detection device comprises: A second lifting drive member, wherein a fixed end of the second lifting drive member is disposed on the back plate; A taper plug gauge is connected to the movable end of the second lifting drive member and is used to detect the taper characteristic value of the part to be tested.

[0013] According to the detection system for the taper and thread of the internal tapered thread provided by the present invention, the taper detection device further includes: a second floating joint, one end of which is connected to the movable end of the second lifting drive member; A taper plug gauge connecting piece is connected between the second floating joint and the taper plug gauge.

[0014] According to the detection system for the taper and thread of an internal tapered thread provided by the present invention, the thread detection device comprises: A third lifting driving member, wherein a fixed end of the third lifting driving member is disposed on the back plate; A tightening gun, the gun body of which is connected to the movable end of the third lifting drive member; The thread plug gauge is connected to the driving head of the tightening gun and is used to detect the thread characteristic value of the part to be tested.

[0015] According to the detection system for the taper and thread of the internal tapered thread provided by the present invention, the thread detection device further comprises: A floating bracket, fixed to the movable end of the third lifting drive member, and the tightening gun is mounted on the floating bracket; The thread plug gauge connector is connected between the drive head of the tightening gun and the thread plug gauge.

[0016] The present invention provides a detection system for the taper and thread of an internal tapered thread, which comprises: a frame, a transfer device, a height detection device, a taper detection device and a thread detection device; the frame comprises: a platform frame and a back plate fixed on the platform frame; the transfer device comprises: a clamping mechanism and a characteristic value detection mechanism, and the clamping mechanism and the characteristic value detection mechanism are movably arranged on the platform frame; the height detection device is arranged on the back plate, and the characteristic value detection mechanism can obtain the height characteristic value detected by the height detection device; the taper detection device is arranged on the back plate, and the characteristic value detection mechanism can obtain the taper characteristic value detected by the taper detection device; the thread detection device is arranged on the back plate, and the characteristic value detection mechanism can obtain the thread characteristic value detected by the thread detection device.

[0017] The present invention provides a detection system for the taper and thread of an internal tapered thread, which has the following beneficial effects: the part to be tested can be clamped and moved by a transfer device, and circulated in sequence between a height detection device, a taper detection device, and a thread detection device, and the detection of the height characteristic value, the taper characteristic value, and the thread characteristic value are completed in sequence. The three characteristic value data are collected by a characteristic value detection mechanism, and it can be detected whether the internal tapered thread processing of the part meets the requirements. The present invention provides a detection system for the taper and thread of an internal tapered thread, which has an automatic detection function, a high degree of automation, no need for manual supervision, and reduces manpower waste; in a set of detection processes, the functions of height, taper, and thread detection are realized, the detection cycle is shortened, production efficiency is improved, and comprehensive and integrated detection can be realized; there is no need to configure a three-coordinate measuring instrument, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a front view of a system for detecting the taper and thread of an internal tapered thread provided in one embodiment of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of a transfer device provided in one embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of a height detection device provided in one embodiment of the present invention.

[0022] Figure 4 It is a schematic structural diagram of a taper detection device provided in one embodiment of the present invention.

[0023] Figure 5 It is a structural schematic diagram of a thread detection device provided in one embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the taper of the internal tapered thread and the thread in the initial state provided in one embodiment of the present invention.

[0025] Figure 7 It is a schematic diagram of the structure of the taper of the internal tapered thread and the thread before being in the state of detecting the height of the part provided in one embodiment of the present invention.

[0026] Figure 8 It is a schematic diagram of the structure of the taper of an internal tapered thread and the thread in a taper detection part state provided in one embodiment of the present invention.

[0027] Fig. 9 It is a schematic structural diagram of the taper of an internal tapered thread and another viewing angle of the thread after being in a taper state of a detected part, provided in one of the embodiments of the present invention.

[0028] Fig.10 It is a schematic structural diagram of the taper of an internal tapered thread and the thread in a taper state of a detection part provided in one embodiment of the present invention.

[0029] Fig.11 It is a schematic diagram of the structure of the taper of the internal tapered thread and the thread in the thread state of the detection part provided in one of the embodiments of the present invention.

[0030] Reference numerals: 100: frame; 101: platform frame; 102: back plate; 200: transfer device; 201: clamping mechanism; 202: characteristic value detection mechanism; 203: horizontal driving member; 204: floating platform; 205: rotary telescopic driving member; 300: height detection device; 301: first lifting driving member; 302: height detection block; 303: first floating joint; 400: taper detection device; 401: second lifting driving member; 402: taper plug gauge; 403: second floating joint; 404: taper plug gauge connector; 500: thread detection device; 501: third lifting driving member; 502: tightening gun; 503: thread plug gauge; 504: floating bracket; 505: thread plug gauge connector. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0032] In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present embodiment.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this embodiment, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this embodiment, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0035] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Combine the following Figure 1-Figure 11 The invention describes a detection system for the taper and thread of an internal tapered thread. The detection system for the taper and thread of an internal tapered thread comprises: a frame 100, a transfer device 200, a height detection device 300, a taper detection device 400 and a thread detection device 500.

[0037] Among them, the frame 100 includes: a platform frame 101 and a back plate 102 fixed on the platform frame 101; the transfer device 200 includes: a clamping mechanism 201 and a characteristic value detection mechanism 202, and the clamping mechanism 201 and the characteristic value detection mechanism 202 are movably arranged on the platform frame 101; the height detection device 300 is arranged on the back plate 102, and the characteristic value detection mechanism 202 can obtain the height characteristic value detected by the height detection device 300; the taper detection device 400 is arranged on the back plate 102, and the characteristic value detection mechanism 202 can obtain the taper characteristic value detected by the taper detection device 400; the thread detection device 500 is arranged on the back plate 102, and the characteristic value detection mechanism 202 can obtain the thread characteristic value detected by the thread detection device 500.

[0038] Specifically, the rack 100 serves as a support and installation component for the entire system, and is composed of a platform frame 101 and a back plate 102. The platform frame 101 is placed horizontally and is used to carry the transfer device 200 and fix the back plate 102. The back plate 102 is used to install a height detection device 300, a taper detection device 400 and a thread detection device 500.

[0039] The transfer device 200 is mainly used to transfer the parts to be tested and receive the data obtained after the parts are tested to complete the test. The clamping mechanism 201 is used to clamp and fix the parts to be tested. It can move on the platform frame 101, that is, it can flow in turn between different positions of the height detection device 300, the taper detection device 400 and the thread detection device 500 to transport the parts to be tested to the designated detection position. The characteristic value detection mechanism 202 is used to collect the characteristic value data obtained by the height detection device 300, the taper detection device 400 and the thread detection device 500 to match with the corresponding parts. After the test is completed, the characteristic value detection mechanism 202 collects the height characteristic value, taper characteristic value and thread characteristic value of the part, thereby realizing the functions of height, taper and thread detection in a set of detection processes, shortening the detection cycle, improving production efficiency, and realizing comprehensive and integrated detection; there is no need to configure a three-coordinate measuring instrument, and the cost is low.

[0040] The height detection device 300, the taper detection device 400 and the thread detection device 500 are arranged in sequence in the moving direction of the transfer device 200, and the height characteristic value, the taper characteristic value and the thread characteristic value of the parts to be tested are detected in sequence. The characteristic value detection mechanism 202 collects the above three characteristic value data in sequence to detect whether the internal tapered thread processing of the parts meets the requirements. Automatic detection can be performed with a high degree of automation, without the need for manual supervision, and reducing manpower waste.

[0041] It can be seen that the detection system for the taper and thread of the internal tapered thread provided by the present invention includes: a frame 100, a transfer device 200, a height detection device 300, a taper detection device 400 and a thread detection device 500; the part to be tested can be clamped and moved by the transfer device 200, and circulated in sequence between the height detection device 300, the taper detection device 400 and the thread detection device 500, and the detection of the height characteristic value, the taper characteristic value and the thread characteristic value is completed in sequence, and the three characteristic value data are collected by the characteristic value detection mechanism 202, so as to detect whether the internal tapered thread processing of the part meets the requirements. The detection system for the taper and thread of the internal tapered thread of the present invention has an automatic detection function, a high degree of automation, no need for manual supervision, and reduces manpower waste; in a set of detection processes, the functions of height, taper and thread detection are realized, the detection cycle is shortened, the production efficiency is improved, and comprehensive detection and integrated detection can be realized; there is no need to configure a three-coordinate measuring instrument, and the cost is low.

[0042] In addition, through the three characteristic values ​​of height, taper plug gauge and thread plug gauge, the pressing depth of taper plug gauge 402 and the screwing depth of thread plug gauge 503 can be calculated. These two depth values ​​can be used to judge whether the processing of the parts is qualified, thereby realizing rapid detection of the taper and thread of internal tapered thread parts.

[0043] In one embodiment of the present invention, the transfer device 200 includes: a horizontal driving member 203 and a floating platform 204. The extension direction of the horizontal driving member 203 is parallel to the arrangement direction of the height detection device 300, the taper detection device 400 and the thread detection device 500; the floating platform 204 is movably arranged on the horizontal driving member 203, and the clamping mechanism 201 and the characteristic value detection mechanism 202 are both fixed on the floating platform 204. Specifically, the horizontal driving member 203 can adopt a horizontally arranged electric cylinder, which can drive the floating platform 204 to move and circulate between the height detection device 300, the taper detection device 400 and the thread detection device 500 in turn, thereby completing the height, taper and thread detection in turn.

[0044] In one embodiment of the present invention, the transfer device 200 also includes: a rotary and telescopic driving member 205, which is connected between the floating platform 204 and the characteristic value detection mechanism 202, and is used to drive the characteristic value detection mechanism 202 to rotate and telescope to avoid the height detection device 300, the taper detection device 400 and the thread detection device 500, or to dock with any one of the height detection device 300, the taper detection device 400 and the thread detection device 500. Specifically, the rotary telescopic drive member 205 can be a rotary telescopic cylinder, whose fixed end is connected to the floating platform 204, and whose movable end drives the characteristic value detection mechanism 202 to perform rotary telescopic movement; on the one hand, it satisfies the requirement that the characteristic value detection mechanism 202 can approach or contact the height detection device 300, the taper detection device 400 or the thread detection device 500, so as to obtain the characteristic value data detected by the detection device; on the other hand, it ensures that during the movement and circulation of the part to be tested, the characteristic value detection mechanism 202 meets the need to avoid the height detection device 300, the taper detection device 400 and the thread detection device 500 in a small space, and no interference problem occurs. It can be understood that when the characteristic value detection mechanism 202 has a sensor, when the sensor approaches or contacts the corresponding detection device, the characteristic value data detected by the detection device can be obtained, and the characteristic value data can be stored and corresponded to the part.

[0045] In one embodiment of the present invention, the floating platform 204 includes an XY axis floating platform 204. Specifically, the XY axis floating platform 204 in this embodiment can perform a small floating movement in the XY axis, that is, a small floating movement in the horizontal and vertical directions to adjust the parts to a predetermined detection position. By setting the XY axis floating platform 204, horizontal bidirectional compensation can be achieved when the thread plug gauge 503 is screwed into the part, preventing the tightening mechanism from "holding strength" and causing damage to the equipment and parts.

[0046] In one embodiment of the present invention, the height detection device 300 includes: a first lifting drive member 301 and a height detection block 302. The fixed end of the first lifting drive member 301 is arranged on the back plate 102; the height detection block 302 is connected to the movable end of the first lifting drive member 301, and is used to detect the height characteristic value of the part to be tested. Specifically, the first lifting drive member 301 can use a lifting cylinder to drive the height detection block 302 to move up and down. When the part to be tested moves to the detection position, the first lifting drive member 301 drives the height detection block 302 to descend, cooperates with the accompanying optical distance measuring sensor to detect the relative value of the part height, and the rotary telescopic drive member 205 drives the characteristic value detection mechanism 202 to approach the height detection block 302 and obtain the height characteristic value; after the detection is completed, the rotary telescopic drive member 205 drives the characteristic value detection mechanism 202 to reset, the first lifting drive member 301 drives the height detection block 302 to rise, and the horizontal drive member 203 drives the part to move to the next detection station.

[0047] In one embodiment of the present invention, the height detection device 300 further includes: a first floating joint 303, and the first floating joint 303 is connected between the movable end of the first lifting drive member 301 and the height detection block 302. Specifically, the first floating joint 303 allows the height detection block 302 to have a certain floating space, thereby avoiding the problem of equipment wear caused by vibration during the measurement process due to the fixed connection between the first lifting drive member 301 and the height detection block 302.

[0048] In one embodiment of the present invention, the taper detection device 400 includes: a second lifting drive member 401 and a taper plug gauge 402. The fixed end of the second lifting drive member 401 is arranged on the back plate 102; the taper plug gauge 402 is connected to the movable end of the second lifting drive member 401, and is used to detect the taper characteristic value of the part to be tested. Specifically, the second lifting drive member 401 can use a lifting cylinder to drive the taper plug gauge 402 to move up and down. When the part to be tested moves to the detection position, the second lifting drive member 401 drives the taper plug gauge 402 to descend, and cooperates with the optical ranging sensor that moves with it to detect the relative value of the taper plug gauge 402 of the part. The rotary telescopic drive member 205 drives the characteristic value detection mechanism 202 to approach the taper plug gauge 402 and obtain the taper characteristic value. After the detection is completed, the rotary telescopic drive member 205 drives the characteristic value detection mechanism 202 to reset, the second lifting drive member 401 drives the taper plug gauge 402 to rise, and the horizontal drive member 203 drives the part to move to the next detection station.

[0049] In one embodiment of the present invention, the taper detection device 400 further includes: a second floating joint 403 and a taper plug gauge connector 404. Among them, one end of the second floating joint 403 is connected to the movable end of the second lifting drive member 401; the taper plug gauge connector 404 is connected between the second floating joint 403 and the taper plug gauge 402. Specifically, the second floating joint 403 allows the taper plug gauge connector 404 and the taper plug gauge 402 to have a certain floating space, avoiding the problem of equipment wear caused by vibration during the measurement process due to the fixed connection between the second lifting drive member 401 and the taper plug gauge 402; the taper plug gauge connector 404 is a component used to fix the taper plug gauge 402 to the second floating joint 403, and generally a taper handle can be used, and other threaded connectors, keyway connectors or interference fit connectors can also be used.

[0050] In one embodiment of the present invention, the thread detection device 500 includes: a third lifting drive member 501, a tightening gun 502 and a thread plug gauge 503. Among them, the fixed end of the third lifting drive member 501 is arranged on the back plate 102; the gun body of the tightening gun 502 is connected to the movable end of the third lifting drive member 501; the thread plug gauge 503 is connected to the driving head of the tightening gun 502, and is used to detect the thread characteristic value of the part to be tested. Specifically, the third lifting drive member 501 can use a vertically arranged electric cylinder to drive the tightening gun 502 and the thread plug gauge 503 to move synchronously up and down, and the tightening gun 502 can rotate, thereby driving the thread plug gauge 503 to be screwed into the inner cone thread to be tested, and cooperate with the optical distance measuring sensor that moves with it to detect the relative value of the thread plug gauge 503 of the part. When the part to be tested moves to the detection position, the third lifting drive member 501 drives the tightening gun 502 and the thread plug gauge 503 to descend at the same time, and cooperates with the optical ranging sensor that moves with it to detect the relative value of the part thread plug gauge 503, and the rotary and telescopic drive member 205 drives the characteristic value detection mechanism 202 to approach the thread plug gauge 503 and obtain the thread characteristic value; after the detection is completed, the rotary and telescopic drive member 205 drives the characteristic value detection mechanism 202 to reset, the third lifting drive member 501 drives the tapered plug gauge 402 to rise, and the horizontal drive member 203 drives the part to move to the end.

[0051] In one embodiment of the present invention, the thread detection device 500 further includes: a floating bracket 504 and a thread plug gauge connector 505. The floating bracket 504 is fixed to the movable end of the third lifting drive member 501, and the tightening gun 502 is installed on the floating bracket 504; the thread plug gauge connector 505 is connected between the driving head of the tightening gun 502 and the thread plug gauge 503. Specifically, the floating bracket 504 allows the tightening gun 502, the thread plug gauge connector 505 and the thread plug gauge 503 to have a certain floating space. When the third lifting drive member 501 presses the thread plug gauge 503 into the interior of the part, the tightening gun 502 is started to reverse at the same time to prevent the thread from being screwed; as the third lifting drive member 501 continues to advance, the floating bracket 504 compensates the stroke difference between the tightening gun 502 and the internal thread of the part through spring compression, which will not cause damage to the parts and equipment; then the tightening gun 502 rotates forward to screw the thread plug gauge 503 into the internal thread for thread detection.

[0052] Based on the above embodiments, the working state of a detection system for the taper and thread of an internal tapered thread of the present invention is as follows: 1. Initial state: the horizontal drive member 203 is left-limited; the first lifting drive member 301 and the second lifting drive member 401 are retracted; the third lifting drive member 501 is upper-limited; the part to be tested is placed in the clamping mechanism 201 for positioning and clamping, and the rotary telescopic drive member 205 is extended, such as Figure 6 shown.

[0053] 2. Detecting the height status of the part: The horizontal driving member 203 moves the part to the bottom of the height detection device 300, that is, Figure 7 As shown, the first lifting drive member 301 extends to press the height detection pressing block 302 against the upper surface of the part. Afterwards, the rotary telescopic drive member 205 retracts, and the characteristic value detection mechanism 202 is used to detect the height characteristic value of the upper surface of the height detection pressing block 302, that is, Figure 8 and Fig. 9 shown.

[0054] 3. Detect the taper state of the part: The horizontal drive member 203 moves the part to the bottom of the taper detection device 400, and the second lifting drive member 401 extends to press the taper plug gauge 402 into the part to fit tightly with the tapered surface of the internal thread of the part. After that, the rotary telescopic drive member 205 retracts, and the characteristic value detection mechanism 202 is used to detect the taper characteristic value of the upper surface of the taper plug gauge 402, that is, Fig.10 shown.

[0055] 4. Detect the threaded status of the part: The horizontal drive member 203 moves the part to the bottom of the thread detection device 500, and the third lifting drive member 501 pushes downward to press the thread plug gauge 503 into the interior of the part, and at the same time starts the tightening gun 502 to reverse to prevent the thread from being screwed in. As the third lifting drive member 501 continues to advance, the floating bracket 504 compensates for the stroke difference between the tightening gun 502 and the internal thread of the part through spring compression. Afterwards, the tightening gun 502 rotates forward to screw the thread plug gauge 503 into the internal thread. Finally, the rotary telescopic drive member 205 retracts, and the characteristic value detection mechanism 202 is used to detect the thread characteristic value on the upper surface of the thread plug gauge 503, that is, Fig.11 shown.

[0056] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed over multiple units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. Those of ordinary skill in the art may understand and implement the present invention without creative effort.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detection system for the taper and thread of an internal tapered thread, characterized in that: include: A rack (100), the rack (100) comprising: a platform frame (101) and a back plate (102) fixed on the platform frame (101); A transfer device (200), the transfer device (200) comprising: a clamping mechanism (201) and a characteristic value detection mechanism (202), the clamping mechanism (201) and the characteristic value detection mechanism (202) being movably arranged on the platform frame (101); A height detection device (300) is provided on the back plate (102), and the characteristic value detection mechanism (202) is capable of acquiring a height characteristic value detected by the height detection device (300); A taper detection device (400) is arranged on the back plate (102), and the characteristic value detection mechanism (202) is capable of acquiring the taper characteristic value detected by the taper detection device (400); The thread detection device (500) is arranged on the back plate (102), and the characteristic value detection mechanism (202) is capable of acquiring the thread characteristic value detected by the thread detection device (500).

2. The detection system for the taper and thread of an internal tapered thread according to claim 1, characterized in that: The transfer device (200) comprises: a horizontal driving member (203), wherein an extending direction of the horizontal driving member (203) is parallel to an arrangement direction of the height detection device (300), the taper detection device (400) and the thread detection device (500); A floating platform (204), the floating platform (204) being movably disposed on the horizontal driving member (203), and the clamping mechanism (201) and the characteristic value detection mechanism (202) being both fixed on the floating platform (204).

3. The detection system for the taper and thread of an internal tapered thread according to claim 2, characterized in that: The transfer device (200) further comprises: a rotary and telescopic driving member (205), the rotary and telescopic driving member (205) being connected between the floating platform (204) and the characteristic value detection mechanism (202), and being used for driving the characteristic value detection mechanism (202) to perform rotary and telescopic movements so as to avoid the height detection device (300), the taper detection device (400) and the thread detection device (500), or to dock with any one of the height detection device (300), the taper detection device (400) and the thread detection device (500).

4. The detection system for the taper and thread of an internal tapered thread according to claim 2, characterized in that: The floating platform (204) comprises an XY axis floating platform.

5. The detection system for the taper and thread of an internal tapered thread according to any one of claims 1 to 4, characterized in that: The height detection device (300) comprises: a first lifting drive member (301), wherein a fixed end of the first lifting drive member (301) is arranged on the back plate (102); The height detection pressing block (302) is connected to the movable end of the first lifting drive member (301) and is used to detect the height characteristic value of the part to be tested.

6. The detection system for the taper and thread of an internal tapered thread according to claim 5, characterized in that: The height detection device (300) further comprises: a first floating joint (303), wherein the first floating joint (303) is connected between the movable end of the first lifting drive member (301) and the height detection pressing block (302).

7. The detection system for the taper and thread of an internal tapered thread according to any one of claims 1 to 4, characterized in that: The taper detection device (400) comprises: a second lifting drive member (401), wherein a fixed end of the second lifting drive member (401) is arranged on the back plate (102); The taper plug gauge (402) is connected to the movable end of the second lifting drive member (401) and is used to detect the taper characteristic value of the part to be tested.

8. The detection system for the taper and thread of an internal tapered thread according to claim 7, characterized in that: The taper detection device (400) further comprises: A second floating joint (403), one end of the second floating joint (403) being connected to a movable end of the second lifting drive member (401); A taper plug gauge connecting piece (404), the taper plug gauge connecting piece (404) being connected between the second floating joint (403) and the taper plug gauge (402).

9. The detection system for the taper and thread of an internal tapered thread according to any one of claims 1 to 4, characterized in that: The thread detection device (500) comprises: a third lifting drive member (501), wherein a fixed end of the third lifting drive member (501) is arranged on the back plate (102); A tightening gun (502), wherein the gun body of the tightening gun (502) is connected to the movable end of the third lifting drive member (501); The thread plug gauge (503) is connected to the driving head of the tightening gun (502) and is used to detect the thread characteristic value of the part to be tested.

10. The detection system for the taper and thread of an internal tapered thread according to claim 9, characterized in that: The thread detection device (500) further comprises: A floating bracket (504) is fixed to the movable end of the third lifting drive member (501), and the tightening gun (502) is mounted on the floating bracket (504); A thread plug gauge connector (505) is connected between the drive head of the tightening gun (502) and the thread plug gauge (503).

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