Pipe joint air tightness detection mechanism and pipe joint air tightness detection assembly

Abstract

The utility model discloses a pipe joint air tightness detection mechanism and a pipe joint air tightness detection assembly, the pipe joint air tightness detection mechanism comprises a second column body and a plurality of port plugging members, the vertical upper end of the second column body is concavely provided with a second accommodating groove which is through front and back, and the second accommodating groove is used for accommodating a pipe joint. When the pipe joint is located in the second containing groove, all ends of the pipe joint protrude out of the second containing groove, the multiple port plugging pieces are arranged beside the second column body and correspond to multiple ports of the pipe joint in a one-to-one mode, and each port plugging piece is used for plugging the corresponding port of the pipe joint. Wherein at least one port plugging piece is provided with an air supply channel communicated with the pipe joint; in this way, the pipe joint can be placed in the second containing groove, then the two end opening plugging pieces are used for clamping and plugging the two end openings of the pipe joint, at the moment, the air supply channel can be used for supplying air into the pipe joint and maintaining pressure, and whether air leakage exists or not is monitored in the pressure maintaining process so as to judge whether the air tightness is qualified or not.

Description

Technical Field

[0001] The utility model belongs to the field of air tightness detection equipment, and in particular relates to a pipe joint air tightness detection mechanism and a pipe joint air tightness detection assembly. Background Art

[0002] The existing pipe joint sealing detection generally adopts manual loading and manual observation. There are problems such as wrong detection and misdetection caused by personnel fatigue and lack of concentration in the detection process, which causes defective products to flow into the next process or into the market, causing serious quality problems. At the same time, due to the relatively low production efficiency of manual detection, it brings large labor costs to enterprises; of course, there are also many devices for pipe joint air tightness detection at present, but most of them are semi-automatic equipment, such as the equipment disclosed in document numbers CN104849000A "Joint Air Tightness Detection Machine" and CN111044233A "A Intake Joint Air Tightness Detection System" all disclose pipe joint detection equipment, but they all require manual loading and unloading, and cannot achieve fully automated detection. Utility Model Content

[0003] In order to solve the above technical problems, one of the purposes of the utility model is to provide a pipe joint air tightness detection mechanism which has a simple structure and can automatically clamp the pipe joint and automatically perform air tightness detection.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a pipe joint air tightness detection mechanism, comprising a second column and a plurality of port blocking members, the second column is vertically arranged, and a second accommodating groove penetrating front and back is recessed at its upper end, the second accommodating groove is used to accommodate the pipe joint, and when the pipe joint is located in the second accommodating groove, each end thereof protrudes out of the second accommodating groove, a plurality of the port blocking members are arranged beside the second column, and the plurality of the port blocking members correspond one-to-one to the plurality of ports of the pipe joint, each of the port blocking members is used to block the corresponding port of the pipe joint, and at least one of the port blocking members has an air supply channel connected to the pipe joint.

[0005] The beneficial effect of the above technical solution is that the pipe joint can be placed in the second accommodating groove, and then the two ports of the pipe joint can be clamped and sealed using two port sealing members. At this time, the air supply channel can be used to supply air to the pipe joint and maintain the pressure. During the pressure maintenance process, it is observed whether the pressure drops. If it drops, it means that the air tightness is unqualified. If it does not change, it means that the air tightness is qualified.

[0006] In the above technical solution, the pipe joint is a straight-through piece, two port blocking pieces are provided, and the two port blocking pieces are spaced apart in the front-to-back direction, and the second column is located between the two port blocking pieces.

[0007] The beneficial effects of the above technical solution are: its structure is simple, and the two port blocking members are clamped from the front and rear sides to clamp and block the two ends of the pipe joint.

[0008] The pipe joint described in the above technical solution is a tee piece, and the pipe joint has a straight pipe section and a branch pipe section vertically connected to the middle part of the straight pipe section. The straight pipe section is distributed in the second accommodating groove along the front-to-back direction, and the branch pipe section faces upward. Three port blocking members are provided, two of which are arranged at intervals on the front and rear sides of the second column along the front-to-back direction to block the two ends of the straight pipe section, and the remaining port blocking member is vertically arranged on the left or right side of the second column to block the port corresponding to the branch pipe section.

[0009] The beneficial effect of the above technical solution is that the pipe joint can be clamped in the second accommodating groove from three directions by three port blocking pieces, and the three joints of the pipe joint can be blocked respectively to perform an air tightness test.

[0010] The above technical solution also includes two crescent-shaped straightening teeth, and the middle part of the groove walls on both sides of the second accommodating groove is recessed with an embedding groove that runs through the left and right. The two straightening teeth and the two embedding grooves correspond one to one, and each of the straightening teeth is vertically arranged in the corresponding embedding groove, and the arc openings of the two straightening teeth are close to each other. The lower end of the middle part of the straightening tooth is rotatably connected to the groove wall of the embedding groove, and the center of gravity of the straightening tooth is located at the upper end of the rotational connection between it and the embedding groove. Under the action of the gravity of the pipe joint, the upper ends of the two straightening teeth swing close to each other to straighten the branch pipe section to a vertical state.

[0011] The beneficial effect of the above technical solution is that after the pipe joint in the second accommodating groove is removed, the upper ends of the two straightening teeth swing away from each other, and after the pipe joint is placed in the second accommodating groove, the lower ends of the two straightening teeth will swing closer to each other under the extrusion of the pipe joint, thereby straightening the branch pipe section clamp to verticality to facilitate the corresponding port blocking piece to block.

[0012] The port blocking member in the above technical solution includes a second telescopic driving member and a flexible blocking head, wherein the blocking head is arranged at the driving end of the second telescopic driving member, and the second telescopic driving member is used to drive the corresponding blocking head to move close to or away from the corresponding port on the pipe joint, and the air supply channel is arranged on any one of the blocking heads.

[0013] The beneficial effects of the above technical solution are: its structure is simple, and the provision of a flexible plugging head can improve the plugging effect when it contacts the pipe joint.

[0014] A second purpose of the utility model is to provide a pipe joint air tightness detection assembly which has a simple structure and can automatically detect the air tightness of the pipe joint.

[0015] In order to achieve the above-mentioned purpose, another technical scheme of the utility model is as follows: a pipe joint air tightness detection assembly, comprising a feeding mechanism, a positioning mechanism, a taking mechanism, a dividing mechanism and the air tightness detection mechanism as described above, wherein the taking mechanism is arranged along the front-to-back direction, the feeding mechanism is arranged in front of the taking mechanism, the positioning mechanism, the air tightness detection mechanism and the dividing mechanism are arranged in sequence on one side of the taking mechanism along the front-to-back direction, the feeding mechanism is used to convey the pipe joints one by one to the positioning mechanism, the positioning mechanism is used to position the pipe joints, the air tightness detection mechanism is used to perform air tightness detection on the pipe joints, the taking mechanism is used to take the pipe joints on the positioning mechanism and deliver them to the air tightness detection mechanism, and take the pipe joints detected by the air tightness detection mechanism and deliver them to the dividing mechanism, and the dividing mechanism is used to divert the pipe joints that are qualified or unqualified in air tightness after detection.

[0016] The beneficial effect of the above technical solution is that the feeding mechanism can feed the pipe joints into the positioning mechanism one by one, the positioning mechanism positions the pipe joints to facilitate the taking mechanism to take the pipe joints, and send them to the air-tightness testing mechanism for air-tightness testing. After the test is completed, the taking mechanism takes the pipe joints away to the dividing mechanism for diversion according to whether the air-tightness of the pipe joints is qualified.

[0017] The picking mechanism described in the above technical solution includes a linear driving member, two picking parts and two mounting seats, the linear driving member is arranged along the front-to-back direction, the two mounting seats and the two picking parts correspond one to one, the two mounting seats are spaced apart along the front-to-back direction on the driving end of the linear driving member, each picking part is installed on the corresponding mounting seat, the picking part located in the front is used to pick up and deliver the pipe joint on the positioning mechanism to the air-tightness detection mechanism, and the picking part located in the rear is used to pick up and deliver the pipe joint on the air-tightness detection mechanism to the material distribution mechanism.

[0018] The beneficial effect of the above technical solution is that its structure is simple, so that the two taking parts can operate simultaneously, one of the taking parts takes the pipe joint on the positioning mechanism and sends it to the air tightness detection mechanism, while the other taking part takes the pipe joint on the air tightness detection mechanism and sends it to the material distribution mechanism, which makes its operation effect high and easy to operate.

[0019] The taking part in the above technical solution includes a first telescopic driving member, a mounting frame and a clamping member, the first telescopic driving member is vertically arranged on the mounting seat on one side close to the positioning mechanism and the air-tightness detection mechanism, the mounting frame is arranged at the telescopic end of the first telescopic driving member, the clamping member is arranged at the lower end of the mounting frame and is located above the positioning mechanism and the air-tightness detection mechanism, the clamping member is used to clamp or loosen the two ends of the pipe joint, and the first telescopic driving member is used to move the clamping member up and down.

[0020] The beneficial effect of the above technical solution is that the first telescopic driving member can drive the clamping member to move up and down, and the clamping member clamps the two ends of the pipe joint from the left and right directions, making it easy to take.

[0021] The clamping member in the above technical scheme includes a two-way telescopic member and four clamping rods. The two-way telescopic member is arranged at the lower end of the mounting frame along the left-right direction. The two-way telescopic member has two telescopic ends spaced apart along the left-right direction. The four clamping rods are vertically arranged and divided into two groups of clamping rod groups. The two clamping rods in the same group are spaced apart along the left-right direction, and the two groups of clamping rod groups are spaced apart along the front-to-back direction. Two clamping rods are spaced apart along the front-to-back direction on the two telescopic ends of the two-way telescopic member, and the upper end of each clamping rod is connected to the corresponding telescopic end on the two-way telescopic member. The two telescopic ends of the two-way telescopic member shrink or extend synchronously to drive the clamping rods in the two groups of clamping rod groups to move close to each other to clamp the two ends of the pipe joint, or move away from each other to loosen the two ends of the pipe joint.

[0022] The beneficial effects of the above technical solution are: it has a simple structure and a good clamping effect, and can directly clamp the two ends of the pipe joint.

[0023] The positioning mechanism in the above technical solution includes a first column and a baffle, the first column is vertically arranged, and a first receiving groove penetrating front and back is recessed at the upper end thereof, the discharge end of the feeding mechanism is aligned with the front end of the first receiving groove, and the pipe joint delivered by the feeding mechanism slides backward into the first receiving groove, the baffle is vertically arranged behind the first column in the left and right direction, and there is a gap between the baffle and the first column, the baffle is used to limit the rear end of the pipe joint in the first receiving groove, and after the pipe joint is positioned in the first receiving groove, both ends of the pipe joint protrude outside the first receiving groove for the taking mechanism to take.

[0024] The beneficial effect of the above technical solution is that its structure is simple, so that the pipe joint sent into the first receiving groove by the feeding mechanism is blocked by the baffle at its rear end, so that the pipe joint can be positioned, and it is convenient for the clamping member to clamp the pipe joint so as to accurately send the pipe joint to the second receiving groove.

[0025] The feeding mechanism described in the above technical solution is a vibrating plate feeder.

[0026] The beneficial effect of the above technical solution is that it can realize the delivery of pipe joints one by one.

[0027] The material distribution mechanism described in the above technical scheme includes a transition guide groove, an inclined driving member and two discharge grooves, the two discharge grooves are both vertically inclined and arranged behind the air tightness detection mechanism, and the two discharge grooves are spaced apart in the left-right direction, the transition guide groove is swingably arranged between the two discharge grooves along the left-right direction, and is used to receive the pipe joints sent by the taking mechanism, the driving end of the inclined driving member is transmission connected to the transition guide groove, and is used to drive the transition guide groove to vertically tilt to guide the pipe joints to any one of the discharge grooves, one of the discharge grooves is used to receive pipe joints with qualified air tightness, and the other discharge groove is used to receive pipe joints with unqualified air tightness.

[0028] The beneficial effect of the above technical solution is that: in this way, the tilting drive member can determine the tilting direction of the transition guide groove according to the detection mechanism of the airtightness detection mechanism, so as to achieve flow diversion from the pipe joints with qualified airtightness and the pipe joints with unqualified airtightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a vertical view of the air tightness detection mechanism for the pipe joint described in Example 1 of the utility model;

[0030] Figure 2 It is a side view of the pipe joint described in Example 1 of the utility model;

[0031] Figure 3 This is a vertical view of the pipe joint of Example 1 of the utility model when it is clamped;

[0032] Figure 4 This is a vertical view of the pipe joint of Example 2 of the utility model when it is clamped;

[0033] Figure 5 It is a side view of the pipe joint described in Example 2 of the utility model;

[0034] Figure 6 This is a vertical view of the second column in Example 2 of the utility model;

[0035] Figure 7 This is a schematic diagram of the distribution of two stabilizing teeth and corresponding port blocking members in Example 2 of the utility model;

[0036] Figure 8 A top view of the pipe joint air tightness detection assembly according to Example 3 of the utility model;

[0037] Fig. 9 It is a vertical view of the positioning mechanism, the taking mechanism and the airtightness detection mechanism described in Example 3 of the utility model;

[0038] Fig.10 This is a vertical view of the clamping head in Example 3 of the utility model clamping the pipe joint;

[0039] Fig.11 This is a vertical view of the pipe joint in the first receiving groove in Example 3 of the utility model;

[0040] Fig.12 This is a rear view of the material distribution mechanism in Example 3 of the utility model installed on the frame;

[0041] Fig.13 It is a vertical view of the positioning mechanism, the taking mechanism and the airtightness detection mechanism described in Example 4 of the utility model;

[0042] Fig.14 This is a vertical view of the pipe joint in Embodiment 4 of the present utility model when it is in the first receiving groove;

[0043] Fig.15 This is a vertical view of the clamping head in Example 4 of the utility model clamping the pipe joint;

[0044] Fig.16 A top view of the double-station pipe joint air tightness detection device described in Example 5 of the utility model;

[0045] Fig.17 This is a vertical view of the double-station pipe joint air tightness detection device described in Example 5 of the utility model;

[0046] Fig.18 This is a rear view of the double-station pipe joint air tightness detection device described in Example 5 of the utility model. In the figure: 1 feeding mechanism; 2 positioning mechanism; 21 first column; 211 first receiving groove; 22 baffle; 3 taking mechanism; 31 linear drive member; 32 taking part; 321 first telescopic drive member; 322 mounting frame; 323 clamping member; 3231 two-way telescopic member; 3232 clamping rod; 33 mounting seat; 4 air tightness detection mechanism; 41 second column; 411 second receiving groove; 412 straightening tooth; 413 embedded groove; 42 port plugging member; 421 second telescopic drive member; 4211 lower pressure rod; 422 plugging head; 4221 air supply channel; 4222 pipeline interface; 5 material distribution mechanism; 51 transition guide groove; 52 tilting drive member; 53 discharge trough; 6 pipe joint; 61 straight pipe section; 62 branch pipe section; 7 rack; 100 pipe joint air tightness detection assembly. DETAILED DESCRIPTION

[0047] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. According to the following description and claims, the advantages and features of the present invention will be more clearly described. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0048] Example 1

[0049] like Figure 1 and Figure 3 As shown, this embodiment provides a pipe joint air tightness detection mechanism, including a second column 41 and a plurality of port blocking members 42, the second column 41 is vertically arranged, and a second receiving groove 411 is recessed on its upper end and runs through the front and rear, the second receiving groove 411 is used to accommodate the pipe joint 6, and when the pipe joint 6 is located in the second receiving groove 411, each end of the pipe joint 6 protrudes out of the second receiving groove 411, and the plurality of port blocking members 42 are arranged beside the second column 41, and the plurality of port blocking members 42 and the plurality of ports of the pipe joint 6 are connected. One-to-one correspondence, each of the port plugging members 42 is used to plug the corresponding port of the pipe joint 6, and at least one of the port plugging members 42 has an air supply channel 4221 communicated with the pipe joint 6, so that the pipe joint can be placed in the second receiving groove, and then the two ports of the pipe joint are clamped and sealed by two port plugging members. At this time, the air supply channel can be used to supply air to the pipe joint and maintain the pressure. During the pressure maintaining process, observe whether the pressure will drop. If it drops, it means that the air tightness is unqualified. If it does not change, it means that the air tightness is qualified.

[0050] like Figure 2 As shown, the pipe joint 6 in the above technical solution is a straight-through piece, and two port blocking pieces 42 are provided, and the two port blocking pieces 42 are spaced apart in the front-to-back direction, and the second column 41 is located between the two port blocking pieces 42. The structure is simple, and the two port blocking pieces are clamped from the front and back sides to clamp and seal the two ends of the pipe joint.

[0051] The port blocking member 42 in the above technical solution includes a second telescopic driving member 421 and a flexible blocking head 422. The blocking head 422 is arranged at the driving end of the second telescopic driving member 421. The second telescopic driving member 421 is used to drive the corresponding blocking head 422 to move close to or away from the corresponding port on the pipe joint 6. Any one of the blocking heads 422 is provided with the air supply channel 4221, and its structure is simple. The provision of a flexible blocking head can improve the blocking effect when it contacts the pipe joint.

[0052] In this embodiment, the second telescopic driving member can be a telescopic cylinder, a hydraulic cylinder or a telescopic electric cylinder, preferably a telescopic cylinder, the plugging head can be made of rubber, silicone or latex, and the end of the plugging head close to the second column can be a frustum, so that the end of the plugging head can be partially inserted into the port corresponding to the pipe joint, so that its plugging performance is better, and one end of the air supply channel is located in the middle of the cone of the plugging head, and the other end is located at the side wall of the plugging head to form a pipeline interface (the pipeline interface is connected to the air supply device through a hose, and the hose can be provided with a valve and a pressure detection member, the pressure The pressure detection component can be a pressure sensor and an electric valve. The pressure detection component is located between the valve and the pipeline interface. The gas supply equipment can be a gas cylinder containing compressed air. The detection principle is that when the port sealing components seal the ports of the pipe joints, gas is supplied from the pipe joints of the gas supply equipment box, and then the valve is closed. Within a certain period of time (such as 5 minutes), if the pressure detected by the pressure detection component does not drop or the drop value is less than the set threshold value, it indicates that the sealing of the pipe joint is qualified. If the pressure detected by the pressure detection component drops by more than the set threshold value, it indicates that the air tightness of the pipe joint is unqualified. The set threshold value can be set artificially according to needs, which will not be elaborated here).

[0053] In this embodiment, the telescopic ends of the two second telescopic driving members are close to each other and aligned with the two ends of the second accommodating groove.

[0054] The pipe joint air tightness detection mechanism provided in this embodiment is used to detect a straight-through piece.

[0055] Example 2

[0056] like Figure 4 and Figure 5 As shown, the embodiment 1 is the same as the embodiment 1, except that the pipe joint 6 is a tee, and the pipe joint 6 has a straight pipe section 61 and a branch pipe section 62 vertically connected to the middle of the straight pipe section 61, the straight pipe section 61 is distributed in the second receiving groove 411 along the front-to-back direction, and the branch pipe section 62 faces upward, and three port blocking members 42 are provided, two of which are spaced apart at the front and rear sides of the second column 41 along the front-to-back direction to block the two ends of the straight pipe section 61, and the remaining port blocking member 42 is vertically arranged on the left or right side of the second column 41 to block the port corresponding to the branch pipe section 62, so that the pipe joint can be clamped in the second receiving groove from three directions by three port blocking members, and the three joints of the pipe joint can be blocked respectively for air tightness test.

[0057] like Figure 4 , Figure 6 and Figure 7As shown, the technical solution also includes two crescent-shaped straightening teeth 412, and the middle of the groove walls on both sides of the second accommodating groove 411 are both recessed with left and right embedded grooves 413, and the two straightening teeth 412 correspond to the two embedded grooves 413 one by one, and each straightening tooth 412 is vertically arranged in the corresponding embedded groove 413, and the arcs of the two straightening teeth 412 are close to each other, and the lower end of the middle part of the straightening tooth 412 is rotatably connected to the groove wall of the embedded groove 413, and the center of gravity of the straightening tooth 412 is At the upper end of the rotational connection between the two teeth and the embedding groove 413, under the action of gravity of the pipe joint 6, the upper ends of the two straightening teeth 412 swing close to each other to straighten the branch pipe section 62 to a vertical state, so that after the pipe joint in the second accommodating groove is removed, the upper ends of the two straightening teeth swing away from each other, and after the pipe joint is placed in the second accommodating groove, the lower ends of the two straightening teeth will swing close to each other under the extrusion of the pipe joint, thereby straightening the branch pipe section clamp to a vertical state to facilitate the corresponding port blocking piece to block.

[0058] The second telescopic driving member of the vertically arranged port plugging member in this embodiment can adopt a rotary clamping cylinder, which is used to drive the corresponding plugging head 422 to press the corresponding port from the upper end of the branch pipe section. Of course, a downward pressure rod 4211 can also be set at the driving end of the second telescopic driving member. The downward pressure rod 4211 can move up and down synchronously with the plugging head, and the downward pressure rod 4211 can be pressed on the upper end of any one of the straightening teeth to limit the downward pressure stroke of the plugging head to avoid damaging the pipe joint; and the remaining two port plugging members are similar to the two port plugging members in Example 1 in structure and arrangement.

[0059] The pipe joint air tightness detection mechanism provided in this embodiment is used to detect a tee piece.

[0060] Example 3

[0061] like Figure 8As shown, this embodiment provides a pipe joint air tightness detection assembly, including a feeding mechanism 1, a positioning mechanism 2, a taking mechanism 3, a dividing mechanism 5 and the air tightness detection mechanism 4 as described in Example 1, the taking mechanism 3 is arranged along the front-to-back direction, the feeding mechanism 1 is arranged in front of the taking mechanism 3, the positioning mechanism 2, the air tightness detection mechanism 4 and the dividing mechanism 5 are arranged in sequence on one side of the taking mechanism 3 along the front-to-back direction, the feeding mechanism 1 is used to convey the pipe joints 6 one by one to the positioning mechanism 2, the positioning mechanism 2 is used to position the pipe joints 6, and the air tightness detection mechanism 4 is used to check the pipe joints 6. Air tightness test, the taking mechanism 3 is used to take the pipe joint 6 on the positioning mechanism 2 and send it to the air tightness testing mechanism 4, and take the pipe joint 6 after the test by the air tightness testing mechanism 4 and send it to the dividing mechanism 5, the dividing mechanism 5 is used to divert the pipe joints 6 with qualified or unqualified air tightness after the test, so that the pipe joints can be fed into the positioning mechanism one by one by the feeding mechanism, the positioning mechanism positions the pipe joints to facilitate the taking mechanism to take the pipe joints, and send them to the air tightness testing mechanism for air tightness testing. After the test is completed, the taking mechanism takes the pipe joint away to the dividing mechanism to divert it according to whether the air tightness of the pipe joint is qualified.

[0062] like Fig. 9 As shown, the picking mechanism 3 in the above technical scheme includes a linear drive member 31, two picking parts 32 and two mounting seats 33, the linear drive member is arranged along the front-to-back direction, the two mounting seats 33 and the two picking parts 32 correspond one to one, the two mounting seats 33 are spaced apart along the front-to-back direction on the driving end of the linear drive member 31, each picking part 32 is installed on the corresponding mounting seat 33, the picking part 32 located in the front is used to pick up and deliver the pipe joint 6 on the positioning mechanism 2 to the air-tightness detection mechanism 4, and the picking part 32 located in the rear is used to pick up and deliver the pipe joint 6 on the air-tightness detection mechanism 4 to the dividing mechanism 5, and its structure is simple, so that the two picking parts can operate at the same time, one of the picking parts is to pick up and deliver the pipe joint on the positioning mechanism to the air-tightness detection mechanism, and the other picking part is to pick up and deliver the pipe joint on the air-tightness detection mechanism to the dividing mechanism, so that its operation effect is high and the operation is simple.

[0063] The linear drive member may be a screw drive member (but the length of the drive block thereon needs to be lengthened to meet the spaced installation requirements of the two mounting seats).

[0064] like Fig. 9As shown, the taking part 32 in the above technical scheme includes a first telescopic driving member 321, a mounting frame 322 and a clamping member 323, the first telescopic driving member 321 is vertically arranged on the mounting seat 33 on one side close to the positioning mechanism 2 and the air-tightness detection mechanism 4, the mounting frame 322 is arranged at the telescopic end of the first telescopic driving member 321, the clamping member 323 is arranged at the lower end of the mounting frame 322 and is located above the positioning mechanism 2 and the air-tightness detection mechanism 4, the clamping member 323 is used to clamp or loosen the two ends of the pipe joint 6, the first telescopic driving member 321 is used to move the clamping member 323 up and down, so that the first telescopic driving member can drive the clamping member to move up and down, and the clamping member clamps the two ends of the pipe joint from the left and right directions, so that it is convenient to take.

[0065] In this embodiment, the first telescopic driving member can be a slide cylinder.

[0066] like Fig.10 As shown, the clamping member 323 in the above technical solution includes a two-way telescopic member 3231 and four clamping rods 3232. The two-way telescopic member 3231 is arranged at the lower end of the mounting frame 322 along the left-right direction. The two-way telescopic member 3231 has two telescopic ends spaced apart along the left-right direction. The four clamping rods 3232 are vertically arranged and divided into two groups of clamping rod groups. The two clamping rods 3232 of the same group are spaced apart along the left-right direction, and the two groups of clamping rod groups are spaced apart along the front-back direction. Two clamping rods 3232 are arranged on the two telescopic ends at intervals along the front-to-back direction, and the upper end of each clamping rod 3232 is connected to the corresponding telescopic end on the two-way telescopic member 3231. The two telescopic ends of the two-way telescopic member 3231 shrink or extend synchronously to drive the clamping rods 3232 in the two groups of clamping rod groups to move closer to each other to clamp the two ends of the pipe joint 6, or move away from each other to loosen the two ends of the pipe joint 6. It has a simple structure and a good clamping effect, and can be clamped directly from both ends of the pipe joint.

[0067] The bidirectional telescopic member described in this embodiment can adopt a double-axis double-rod double-outlet slide cylinder.

[0068] like Fig.11As shown, the positioning mechanism 2 in the above technical solution includes a first column 21 and a baffle 22, the first column 21 is vertically arranged, and a first receiving groove 211 penetrating from front to back is recessed at its upper end, the discharge end of the feeding mechanism 1 is aligned with the front end of the first receiving groove 211, the pipe joint 6 delivered by the feeding mechanism 1 slides backward into the first receiving groove 211, the baffle 22 is vertically arranged behind the first column 21 in the left-right direction, and there is a gap between the baffle 22 and the first column 21 The baffle 22 is used to limit the rear end of the pipe joint 6 in the first receiving groove 211, and after the pipe joint 6 is positioned in the first receiving groove 211, both ends of the pipe joint 6 protrude outside the first receiving groove 211 for the taking mechanism 3 to take. The structure is simple, so that the pipe joint fed into the first receiving groove by the feeding mechanism is blocked by the baffle at the rear end, so that the pipe joint can be positioned, and it is convenient for the clamping member to clamp the pipe joint so as to accurately feed the pipe joint into the second receiving groove.

[0069] The feeding mechanism 1 in the above technical solution is a vibrating plate feeder, which can realize the delivery of pipe joints one by one (the discharge end of the feeding mechanism 1 and the front end of the first receiving groove also have a gap for the front end clamping rod group to clamp the front end of the pipe joint).

[0070] like Fig.12 As shown, the material distribution mechanism 5 in the above technical solution includes a transition guide groove 51, an inclined driving member 52 and two discharge grooves 53. The two discharge grooves 53 are vertically inclined and arranged behind the air tightness detection mechanism 4, and the two discharge grooves 53 are spaced apart along the left and right directions. The transition guide groove 51 is swingably arranged between the two discharge grooves 53 along the left and right directions to receive the pipe joint 6 sent by the taking mechanism 3. The driving end of the inclined driving member 52 is connected to the transition guide groove 5 1 transmission connection, which is used to drive the transition guide groove 51 to tilt vertically to guide the pipe joint 6 to any one of the discharge grooves 53, one of the discharge grooves 53 is used to receive the pipe joint 6 with qualified air tightness, and the other discharge groove 53 is used to receive the pipe joint 6 with unqualified air tightness, so that the tilting driving member can determine the tilting direction of the transition guide groove according to the detection mechanism of the air tightness detection mechanism, so as to realize the separation of the pipe joints with qualified air tightness and the pipe joints with unqualified air tightness.

[0071] This embodiment further comprises a frame 7, on which the feeding mechanism 1, the positioning mechanism 2, the taking mechanism 3, the material dividing mechanism 5 and the air tightness detection mechanism 4 are all arranged in sequence.

[0072] The transition guide groove 51 can be installed on the frame 7 so as to be swivelled left and right, and the tilting drive member 52 can be a telescopic cylinder, which extends or contracts to adjust the tilting direction of the filtering guide groove (for example, when the tilting drive member is extended, one end of the transition guide groove is tilted downward, and when the tilting drive member is contracted, the other end of the transition guide groove is tilted downward).

[0073] The pipe joint air tightness detection assembly provided in this embodiment is used to detect a pipe joint that is a straight-through piece.

[0074] The pipe joint air tightness detection assembly in this embodiment also includes a controller (the controller can be set on the frame, and the controller can adopt a PLC controller), and the taking mechanism 3, the material distribution mechanism 5 and the air tightness detection mechanism 4 are all electrically connected to the controller, so that the operation degree of the whole equipment is highly automated.

[0075] Example 4

[0076] Same as Example 3, except that Fig.13 and Fig.14 As shown, the airtightness detection mechanism is the airtightness detection mechanism described in Example 2.

[0077] like Fig.15 As shown, in this embodiment, a horizontal section can be set in the middle of the clamp rod, so that the clamp rod has a three-section bending structure, so that the clamping part can avoid the vertically arranged port blocking member and move horizontally when moving forward and backward.

[0078] The pipe joint air tightness detection assembly provided in this embodiment is used to detect a tee piece.

[0079] Example 5

[0080] like Figure 16-Figure 18 As shown, this embodiment provides a dual-station pipe joint air tightness detection device, which includes two pipe joint air tightness detection assemblies spaced apart in the left and right directions (respectively, the pipe joint air tightness detection assemblies described in Example 3 and Example 4), but the two material distribution mechanisms share a discharge trough to divert unqualified pipe joints (at this time, there are only three discharge troughs and two transition guide troughs), and also share a frame and a controller. Among them, Fig.16 and Fig.18 The middle dotted line indicates the partition of the two pipe joint air tightness detection assemblies.

[0081] The two testing lines of the double-station pipe joint air tightness testing equipment provided in this embodiment are used to test straight-through fittings and tee fittings respectively, but unqualified straight-through fittings and tee fittings detected by the two testing lines are collected together.

[0082] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A pipe joint air tightness detection mechanism, characterized in that: The invention comprises a second column (41) and a plurality of port blocking members (42), wherein the second column (41) is arranged vertically and a second receiving groove (411) is recessed on its upper end and runs through the second column (411), wherein the second receiving groove (411) is used to receive a pipe joint (6), and when the pipe joint (6) is located in the second receiving groove (411), each end of the second receiving groove protrudes out of the second receiving groove (411), and a plurality of the port blocking members (42) are arranged beside the second column (41), and the plurality of the port blocking members (42) correspond one-to-one to a plurality of ports of the pipe joint (6), and each of the port blocking members (42) is used to block a corresponding port of the pipe joint (6), and at least one of the port blocking members (42) has an air supply channel (4221) communicating with the pipe joint (6).

2. The pipe joint air tightness detection mechanism according to claim 1, characterized in that: The pipe joint (6) is a straight-through piece, two port blocking pieces (42) are provided, and the two port blocking pieces (42) are spaced apart in the front-to-back direction, and the second column (41) is located between the two port blocking pieces (42).

3. The pipe joint air tightness detection mechanism according to claim 1, characterized in that: The pipe joint (6) is a three-way piece, and comprises a straight pipe section (61) and a branch pipe section (62) vertically connected to the middle of the straight pipe section (61). The straight pipe section (61) is distributed in the second receiving groove (411) along the front-to-back direction, and the branch pipe section (62) faces upward. Three port blocking members (42) are provided, wherein two of the port blocking members (42) are arranged at intervals on the front and rear sides of the second column (41) along the front-to-back direction, and are used to block the two ends of the straight pipe section (61). The remaining port blocking member (42) is vertically arranged on the left or right side of the second column (41), and is used to block the port corresponding to the branch pipe section (62).

4. The pipe joint air tightness detection mechanism according to claim 3, characterized in that: It also includes two crescent-shaped straightening teeth (412), and the middle parts of the groove walls on both sides of the second accommodating groove (411) are both recessed with left and right embedding grooves (413), the two straightening teeth (412) and the two embedding grooves (413) correspond to each other, each straightening tooth (412) is vertically arranged in the corresponding embedding groove (413), and the arcs of the two straightening teeth (412) are close to each other, and the lower end of the middle part of the straightening tooth (412) is rotatably connected to the groove wall of the embedding groove (413), and the center of gravity of the straightening tooth (412) is located at the upper end of the rotational connection between it and the embedding groove (413). Under the action of the gravity of the pipe joint (6), the upper ends of the two straightening teeth (412) swing to be close to each other so as to straighten the branch pipe section (62) to a vertical state.

5. The pipe joint air tightness detection mechanism according to any one of claims 1 to 4, characterized in that: The port plugging member (42) comprises a second telescopic driving member (421) and a flexible plugging head (422); the plugging head (422) is arranged at the driving end of the second telescopic driving member (421); the second telescopic driving member (421) is used to drive the corresponding plugging head (422) to move close to or away from the corresponding port on the pipe joint (6); and the air supply channel (4221) is arranged on any one of the plugging heads (422).

6. A pipe joint air tightness detection assembly, characterized in that: The invention comprises a feeding mechanism (1), a positioning mechanism (2), a taking mechanism (3), a material distribution mechanism (5) and an airtightness detection mechanism (4) as claimed in any one of claims 1 to 5, wherein the taking mechanism (3) is arranged along the front-to-back direction, the feeding mechanism (1) is arranged in front of the taking mechanism (3), the positioning mechanism (2), the airtightness detection mechanism (4) and the material distribution mechanism (5) are arranged in sequence on one side of the taking mechanism (3) along the front-to-back direction, and the feeding mechanism (1) is used to transport the tubes one by one to the positioning mechanism (2). The pipe joint (6) is provided with a positioning mechanism (2) for positioning the pipe joint (6), the airtightness detection mechanism (4) for detecting the airtightness of the pipe joint (6), the taking mechanism (3) for taking the pipe joint (6) on the positioning mechanism (2) to the airtightness detection mechanism (4), and for taking the pipe joint (6) after detection by the airtightness detection mechanism (4) to the material dividing mechanism (5), and the material dividing mechanism (5) for diverting the pipe joints (6) that are qualified in airtightness or unqualified in airtightness after detection.

7. The pipe joint air tightness detection assembly according to claim 6, characterized in that: The picking mechanism (3) comprises a linear drive member (31), two picking parts (32) and two mounting seats (33). The linear drive member is arranged along the front-to-back direction. The two mounting seats (33) and the two picking parts (32) correspond to each other one by one. The two mounting seats (33) are spaced apart along the front-to-back direction on the driving end of the linear drive member (31). Each picking part (32) is mounted on the corresponding mounting seat (33). The picking part (32) located at the front is used to pick up and deliver the pipe joint (6) on the positioning mechanism (2) to the air-tightness detection mechanism (4), and the picking part (32) located at the rear is used to pick up and deliver the pipe joint (6) on the air-tightness detection mechanism (4) to the material distribution mechanism (5).

8. The pipe joint air tightness detection assembly according to claim 7, characterized in that: The taking part (32) comprises a first telescopic driving member (321), a mounting frame (322) and a clamping member (323); the first telescopic driving member (321) is vertically arranged on a side of the mounting seat (33) close to the positioning mechanism (2) and the air-tightness detection mechanism (4); the mounting frame (322) is arranged at the telescopic end of the first telescopic driving member (321); the clamping member (323) is arranged at the lower end of the mounting frame (322) and is located above the positioning mechanism (2) and the air-tightness detection mechanism (4); the clamping member (323) is used to clamp or release the two ends of the pipe joint (6); and the first telescopic driving member (321) is used to move the clamping member (323) up and down.

9. The pipe joint air tightness detection assembly according to claim 8, characterized in that: The clamping member (323) includes a bidirectional telescopic member (3231) and four clamping rods (3232). The bidirectional telescopic member (3231) is arranged at the lower end of the mounting frame (322) along the left-right direction. The bidirectional telescopic member (3231) has two telescopic ends spaced apart along the left-right direction. The four clamping rods (3232) are vertically arranged and divided into two groups of clamping rod groups. The two clamping rods (3232) of the same group are spaced apart along the left-right direction. The two groups of clamping rod groups are spaced apart along the front-back direction. Two clamping rods (3232) are arranged at intervals along the front-to-back direction on the two telescopic ends of the telescopic member (3231), and the upper end of each clamping rod (3232) is connected to the corresponding telescopic end on the bidirectional telescopic member (3231). The two telescopic ends of the bidirectional telescopic member (3231) contract or extend synchronously to drive the clamping rods (3232) in the two groups of clamping rod groups to move closer to each other to clamp the two ends of the pipe joint (6), or move away from each other to loosen the two ends of the pipe joint (6).

10. The pipe joint air tightness detection assembly according to claim 6, characterized in that: The positioning mechanism (2) comprises a first column (21) and a baffle (22); the first column (21) is vertically arranged, and a first receiving groove (211) is recessed on its upper end and runs through the first receiving groove (211); the discharging end of the feeding mechanism (1) is aligned with the front end of the first receiving groove (211); the pipe joint (6) delivered by the feeding mechanism (1) slides backward into the first receiving groove (211); the baffle (22) is vertically arranged behind the first column (21) in the left-right direction, and a gap is provided between the baffle (22) and the first column (21); the baffle (22) is used to limit the rear end of the pipe joint (6) in the first receiving groove (211); and after the pipe joint (6) is positioned in the first receiving groove (211), both ends of the pipe joint (6) protrude outside the first receiving groove (211) for being taken by the taking mechanism (3).

11. The pipe joint air tightness detection assembly according to claim 6, characterized in that: The feeding mechanism (1) is a vibrating plate feeder.

12. The pipe joint air tightness detection assembly according to claim 6, characterized in that: The material distribution mechanism (5) comprises a transition guide groove (51), an inclined driving member (52) and two discharge grooves (53). The two discharge grooves (53) are both vertically inclined and arranged behind the air tightness detection mechanism (4), and the two discharge grooves (53) are spaced apart in the left-right direction. The transition guide groove (51) is swingably arranged between the two discharge grooves (53) in the left-right direction, and is used to receive the pipe joint (6) sent by the taking mechanism (3). The driving end of the inclined driving member (52) is transmission-connected with the transition guide groove (51), and is used to drive the transition guide groove (51) to be vertically inclined to guide the pipe joint (6) to any one of the discharge grooves (53), wherein one of the discharge grooves (53) is used to receive the pipe joint (6) with qualified air tightness, and the other of the discharge grooves (53) is used to receive the pipe joint (6) with unqualified air tightness.

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