Drive-marked hermeticity detection clamping system

Abstract

The utility model provides a kind of drive mark's air-tightness detection clamping system, it includes: for clamping positioning to pipeline workpiece Clamping mechanism;For the end opening of pipeline workpiece is sealed and is accessed Sealing joint, the sealing joint connects the sealing drive device of driving its sealed and accessed action;For the gas inlet end access of pipeline workpiece and carry out gas input Gas input mechanism, gas pressure sensor and control module are provided on the gas input mechanism;For marker pen clamping and drive mark Mark drive mechanism;The mark drive mechanism obtains the data condition of the gas pressure sensor based on the control module, and drive marker pen carries out mark processing to pipeline workpiece;By with gas pressure sensor, the internal pressure of the pipeline workpiece of input gas after clamping sealing is known, to clarify its possible air leakage situation, to drive marker pen to carry out automation mark, i.

Description

Technical Field

[0001] This utility model relates to an airtightness detection system, specifically, to an airtightness detection clamping system for driving a mark. Background Technology

[0002] Existing technologies employ various techniques to clamp and position pipe workpieces, seal the workpieces, and introduce gas into them to detect the gas pressure in order to confirm the sealing performance of the pipe workpieces.

[0003] In existing technology systems, after the application of the test to detect the sealing performance of pipeline workpieces, it is necessary to further set up the differentiation and screening of the workpieces after the test, or to manually mark the sealing performance of the products. This has the problems of low marking efficiency and easy to lead to repeated testing or missed testing. Utility Model Content

[0004] The purpose of this invention is to provide a drive mark airtightness detection clamping system to overcome the shortcomings of the prior art.

[0005] An airtightness testing clamping system for driving marking includes: a clamping mechanism for clamping and positioning a pipe workpiece; a sealing joint for sealing the end opening of the pipe workpiece, the sealing joint being connected to a sealing drive device that drives it to perform the sealing connection action; a gas input mechanism for connecting and inputting gas to the air inlet end of the pipe workpiece, the gas input mechanism being equipped with a pressure sensor and a control module; and a marking drive mechanism for clamping and driving the marking pen; the marking drive mechanism drives the marking pen to mark the pipe workpiece based on data from the pressure sensor obtained by the control module.

[0006] Furthermore, it also includes a worktable, and the clamping mechanism, sealing joint, gas input mechanism and marking drive mechanism are arranged within the worktable area.

[0007] Furthermore, the clamping mechanism includes a first clamping part and a second clamping part disposed at the opening positions of the two ends of the pipe workpiece; it also includes a plurality of positioning grooves disposed between the first clamping part and the second clamping part corresponding to the pipe diameter of the pipe workpiece, and each positioning groove is configured to adapt to the bending changes of the pipe workpiece.

[0008] Furthermore, the first clamping part includes a positioning frame for peripheral positioning of the outer periphery of the end of the pipe workpiece, and the sealing joint is coaxially positioned within the positioning frame. The outer periphery of the sealing joint and the inner side of the positioning frame form a positioning space adapted to the end of the pipe workpiece. The sealing driving device includes a first linear driving mechanism, and the driving end of the first linear driving mechanism is provided with a driving shaft cylinder connected to the positioning frame and coaxially arranged with the positioning frame.

[0009] Furthermore, the sealing joint has a through-hole forming an airflow channel, the drive shaft cylinder is hollow and has an access opening on the outside, the drive shaft cylinder has a gas supply channel for organizing gas input, the gas outlet of the gas supply channel is connected to the airflow channel, the gas supply channel has an external gas receiving end corresponding to the access opening, and the gas receiving end is connected to the gas input mechanism for ventilation.

[0010] Furthermore, the second clamping part includes an inclined bracket adapted to the end inclination angle of the pipe workpiece, a guide slide rail is provided on the inclined bracket, a guide slide block is movably connected to the guide slide rail, and the sealing drive device includes a second linear drive mechanism positioned on the guide slide block, with the sealing joint provided at the drive end of the second linear drive mechanism.

[0011] Furthermore, a retaining rod is connected to the guide slide by a rotating shaft, and a retaining position is provided on the inclined bracket corresponding to the side of the guide slide rail. When the retaining rod rotates and flips to engage with the retaining position, the guide slide is positioned relative to the inclined bracket.

[0012] Furthermore, the positioning clamping groove includes a first clamping groove with a U-shaped opening facing upwards, a clamping bracket is provided on the side of the first clamping groove, a clamping movable rod is connected to the clamping bracket by a rotating shaft, and a clamping positioning block is provided at the movable end of the clamping movable rod; a clamping limiting member is provided on the clamping movable rod and the clamping bracket to limit the rotation of the clamping movable rod.

[0013] Furthermore, the sealing joint is made of a soft, high-density material, and the outer diameter of the sealing joint is larger than the inner diameter of the pipe workpiece. When the sealing driving device drives the sealing joint to be inserted into the pipe workpiece through the end opening, the sealing joint and the pipe workpiece form an interference fit and seal.

[0014] Furthermore, the marking drive mechanism includes a marking bracket, on which a third linear drive mechanism is provided facing the outer side of the pipe wall after the pipe workpiece is clamped and positioned. A connecting plate is provided on the drive end of the third linear drive mechanism, and a clamping groove for holding the marker pen is provided on the connecting plate.

[0015] The beneficial effects of this utility model are as follows:

[0016] By using a pressure sensor to obtain the internal pressure of the pipe workpiece containing the input gas after it is clamped and sealed, the possible leakage situation can be identified. This information can then drive a marker pen to make automated markings, thus realizing the automated application of airtightness marking.

[0017] Furthermore, by combining a clamping mechanism consisting of a first clamping part, a second clamping part, and a positioning clamping groove, along with a sealing joint, a combined structure is set up to enable the system to adapt and drive the clamping and sealing of the pipe workpiece after simple placement, thus achieving automation in clamping and sealing applications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the combined application of the airtightness testing clamping system of this utility model;

[0019] Figure 2 This is a schematic diagram of the structural configuration of the first clamping part of this utility model;

[0020] Figure 3 This is a schematic diagram of the structural configuration of the second clamping part of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] First clamping part 1, first positioning bracket 10, positioning frame 11, positioning space 12, second clamping part 2, tilting bracket 21, clamping position 211, guide slide rail 22, guide slide block 23, clamping rod 24.

[0023] First sealing joint 3, first linear drive mechanism 31, drive shaft cylinder 32, inlet opening 321, airflow channel 33, air inlet end 34, second sealing joint 4, front section 401, outward expansion section 402, second linear drive mechanism 41.

[0024] Positioning clamping groove 5, first clamping groove 51, clamping bracket 52, clamping movable rod 53, clamping positioning block 54, clamping limiting component 55, gas input mechanism 6.

[0025] 7. Marking drive mechanism; 71. Marking pen; 72. Marking bracket; 73. Third linear drive mechanism; 74. Connecting plate; 8. Worktable surface.

[0026] Pipe workpiece 9. Detailed Implementation

[0027] To make the technical solution, purpose and advantages of this utility model clearer, the following explanation is given in conjunction with the accompanying drawings and embodiments.

[0028] like Figures 1 to 3As shown, this utility model provides an airtightness testing clamping system, which is used to clamp and position a pipe workpiece 9, and then seal both ends of the pipe to allow gas to pass through, thereby performing an airtightness test.

[0029] Specifically, the airtightness testing clamping system includes a worktable 8, on which a clamping mechanism for clamping and positioning the pipe workpiece 9 is provided. The clamping mechanism includes a first clamping part 1 disposed at one end of the worktable 8 for clamping and positioning one side of the pipe workpiece 9, a second clamping part 2 disposed at the other end of the worktable 8 for clamping and positioning the other side of the pipe workpiece 9, and a plurality of positioning grooves 5 disposed between the first clamping part 1 and the second clamping part 2 corresponding to the pipe diameter of the pipe workpiece 9. Each positioning groove 5 is adapted to the bending changes of the pipe workpiece 9.

[0030] A first sealing connector 3 is provided on the first clamping part 1 for sealing the end opening of the pipe workpiece 9. The first sealing connector 3 is connected to a sealing drive device that drives it to perform the sealing action. Under the drive of the sealing drive device, the first sealing connector 3 seals the end opening of the pipe workpiece 9 on one side, thereby clamping and positioning the pipe workpiece 9. Specifically, the first clamping part 1 includes a first positioning bracket 10 fixed on the worktable 8. The sealing drive device includes a first linear drive mechanism 31 positioned and mounted on the first positioning bracket 10. The first linear drive mechanism 31 is used as a drive cylinder. The drive end of the first linear drive mechanism 31 is provided with a drive shaft cylinder 32. The movable end of the drive shaft cylinder 32 is provided with a positioning frame 11 for peripheral positioning of the end of the pipe workpiece 9. The first sealing connector 3 is coaxially positioned in the positioning frame 11. The outer periphery of the first sealing connector 3 and the inner side of the positioning frame 11 form a positioning space 12 adapted to the end of the pipe workpiece 9. The drive shaft cylinder 32 is connected to the positioning frame 11 and is coaxially arranged with the positioning frame 11.

[0031] In application, the first sealing joint 3 is cylindrical to fit the pipe section of the pipe workpiece 9, which has a rounded end and is uniformly extended in a straight direction. The first sealing joint 3 is made of soft high-density material. The outer diameter of the first sealing joint 3 is larger than the inner diameter of the opening at one end of the pipe workpiece 9. When the first linear drive mechanism 31 drives the drive shaft cylinder 32 and the positioning frame 11 and the first sealing joint 3 are inserted into the pipe section through the end opening of the pipe workpiece 9, the positioning frame 11 limits and positions the outer periphery of the pipe workpiece 9, and the first sealing joint 3 and the end opening of the pipe workpiece 9 form an interference fit, thereby sealing the pipe workpiece 9.

[0032] The second clamping part 2 is fitted with a second sealing joint 4 for sealing the end opening of the pipe workpiece 9. Similarly, the second sealing joint 4 is connected to a sealing drive device that drives it to perform the sealing action. Under the drive of the sealing drive device, the second sealing joint 4 seals the other end opening of the pipe workpiece 9, thereby clamping and positioning the pipe workpiece 9. Specifically, the second clamping part 2 includes an inclined support 21 mounted on the worktable 8 to adapt to the tilt angle of the end of the pipe workpiece 9. A guide rail 22 is mounted on the inclined support 21, and a guide slide 23 is movably connected to the guide rail 22. The sealing drive device includes a second linear drive mechanism 41 positioned on the guide slide 23. The second linear drive mechanism 41 is a drive cylinder, and the second sealing joint 4 is mounted on the drive end of the second linear drive mechanism 41.

[0033] In application, the front section 401 of the second sealing joint 4 is cylindrical, and the rear end of the second sealing joint 4 forms an outwardly expanding trapezoidal section 402. The second sealing joint 4 is also made of soft high-density material. The outer diameter of the front section 401 of the second sealing joint 4 is larger than the inner diameter of the opening at the other end of the pipe workpiece 9. When the second linear drive mechanism 41 drives the second sealing joint 4 toward the opening at the other end of the pipe workpiece 9 along the inclined direction of the inclined support 21, the outwardly expanding section 402 of the second sealing joint 4 closes the outer edge of the opening at the other end of the pipe workpiece 9, and the front section 401 of the second sealing joint 4 forms an interference fit with the opening at the other end of the pipe workpiece 9, thereby forming a sealing seal on the pipe workpiece 9.

[0034] To accommodate the insertion of the pipe workpiece 9, a retaining rod 24 is connected to the guide slide 23 by a rotating shaft, and a retaining position 211 is provided on the inclined bracket 21 corresponding to the side of the guide slide rail 22. The guide slide 23, connected to the second linear drive mechanism 41 and the second sealing joint 4, can be moved backward by pulling the retaining rod 24 to make room for the insertion of the pipe workpiece 9. After the pipe workpiece 9 is inserted into the working position, the guide slide 23 is reset and moved forward, and the retaining rod 24 is rotated and flipped to engage with the retaining position 211. The guide slide 23 is positioned relative to the inclined bracket 21, completing the preparation for driving the second sealing joint 4.

[0035] In multiple applications of the positioning clamping groove 5, the positioning clamping groove 5 includes a first clamping groove 51 with a U-shaped opening facing upwards. A clamping bracket 52 is provided on the side of the first clamping groove 51. A clamping movable rod 53 is connected to the clamping bracket 52 by a rotating shaft. A clamping positioning block 54 is provided at the movable end of the clamping movable rod 53. A clamping limiting member 55 is provided on the clamping movable rod 53 and the clamping bracket 52 to limit the rotation of the clamping movable rod 53. After the pipe workpiece 9 is inserted into the first clamping groove 51, the clamping movable rod 53 is flipped so that the clamping positioning block 54 is pressed against the upper side of the pipe workpiece 9. Then, the clamping limiting member 55 restricts the reset flipping of the clamping movable rod 53. In this way, the upper part of the pipe workpiece 9 is pressed to ensure the stability of the middle section of the pipe workpiece 9 when it is placed in the positioning clamping groove 5.

[0036] Based on the above-mentioned first clamping part 1, second clamping part 2, positioning groove 5 and the first sealing joint 3 and second sealing joint 4 that cooperate with it, the inserted pipe workpiece 9 can be effectively clamped and positioned, and the openings at both ends of the pipe workpiece 9 can be sealed.

[0037] In sealing applications, gas needs to be introduced into the pipe workpiece 9, and the gas input pressure is tested to confirm the sealing performance of the pipe workpiece 9.

[0038] The airtightness testing clamping system of this utility model also includes a gas input mechanism 6 for connecting and inputting gas to the inlet end of the pipe workpiece 9. The gas input mechanism 6 is equipped with a pressure sensor and a control module. In the application of the first clamping part 1, the first sealing joint 3 can be axially connected to form an airflow channel 33. The drive shaft cylinder 32 is hollow and has an access opening 321 on its outer side. A gas supply channel for organizing gas input is provided inside the drive shaft cylinder 32; this gas supply channel is a flexible gas supply hose. The outlet end of the gas supply channel is connected to the airflow channel 33. The gas supply channel has an external gas receiving end 34 corresponding to the access opening 321. A connecting valve is provided on the gas receiving end 34, allowing it to connect to an external ventilation pipe of the gas input mechanism 6 for ventilation. The access opening 321 is elongated. During the driving process of the first linear drive mechanism 31, the relative position of the connecting valve and the ventilation pipe is fixed. The position is adjusted through the access opening 321 to avoid obstruction during the movement of the first sealing joint 3, thus providing a structural design for ventilation access.

[0039] It also includes a marking drive mechanism 7 for holding and driving the marker pen 71 to make a mark. After the gas input mechanism 6 introduces air into the pipe workpiece 9, the corresponding air pressure data is detected by the air pressure sensor to determine whether there is an air leak in the corresponding pipe workpiece 9. The marking drive mechanism 7 drives the marker pen 71 to mark the pipe workpiece 9 based on the data obtained from the air pressure sensor by the control module. That is, when it is confirmed that there is an air leak in the pipe workpiece 9, the marking drive mechanism 7 can be driven by signal feedback to leave a corresponding mark on the side wall of the pipe workpiece 9 with the marker pen 71, indicating that the pipe workpiece 9 is a defective workpiece. In this invention, the marking drive mechanism 7 includes a marking bracket 72. A third linear drive mechanism 73 is mounted on the marking bracket 72, facing outwards from the pipe wall of the clamped and positioned pipe workpiece 9. The third linear drive mechanism 73 is a drive cylinder. A connecting plate 74 is mounted on the drive end of the third linear drive mechanism 73, and a clamping groove is provided on the connecting plate 74 for stable clamping of the marker pen 71, ensuring that the tip of the clamped marker pen 71 faces the position of the pipe workpiece 9. In existing applications, different marking drive mechanisms 7 can be selected to drive the marker pen 71 for marking based on different marking design action requirements.

[0040] The gas input mechanism 6 is located on the side of the workbench 8, and the corresponding clamping mechanism, sealing joint structure, gas input mechanism 6 and marking drive mechanism 7 are located within the range of the workbench 8.

[0041] The above description is only a preferred embodiment of the present utility model. For those skilled in the art, modifications can still be made to the embodiments without departing from the implementation principle of the present utility model, and the corresponding modifications should also be considered within the protection scope of the present utility model.

Claims

1. An airtightness detection clamping system for driving markers, characterized in that, include: A clamping mechanism used for clamping and positioning pipe workpieces; A sealing joint for sealing the end opening of a pipe workpiece, wherein the sealing joint is connected to a sealing drive device that drives it to perform the sealing connection action. A gas input mechanism for connecting and inputting gas into the inlet end of a pipe workpiece, wherein a gas pressure sensor and a control module are provided on the gas input mechanism; Marking drive mechanism for holding and driving markers with marker pens; The marking drive mechanism uses the data from the air pressure sensor obtained by the control module to drive the marker pen to mark the pipe workpiece.

2. The airtightness testing clamping system as described in claim 1, characterized in that, It also includes a worktable, and the clamping mechanism, sealing joint, gas input mechanism and marking drive mechanism are arranged within the worktable area.

3. The airtightness testing clamping system as described in claim 1, characterized in that, The clamping mechanism includes a first clamping part and a second clamping part disposed at the opening positions of the two ends of the pipe workpiece; it also includes a plurality of positioning grooves disposed between the first clamping part and the second clamping part corresponding to the pipe diameter of the pipe workpiece, and each positioning groove is configured to adapt to the bending changes of the pipe workpiece.

4. The airtightness testing clamping system as described in claim 3, characterized in that, The first clamping part includes a positioning frame for positioning the outer periphery of the end of the pipe workpiece. The sealing joint is coaxially positioned inside the positioning frame. The outer periphery of the sealing joint and the inner side of the positioning frame form a positioning space adapted to the end of the pipe workpiece. The sealing driving device includes a first linear driving mechanism. The driving end of the first linear driving mechanism is provided with a driving shaft cylinder and connected to the positioning frame and coaxially arranged with the positioning frame.

5. The airtightness testing clamping system as described in claim 4, characterized in that, The sealing joint is axially connected to form an airflow channel. The drive shaft cylinder is hollow and has an access opening on the outside. The drive shaft cylinder is provided with a gas supply channel for organizing gas input. The outlet end of the gas supply channel is connected to the airflow channel. The gas supply channel is provided with an external gas receiving end corresponding to the access opening. The gas receiving end is connected to the gas input mechanism for ventilation.

6. The airtightness testing clamping system as described in claim 3, characterized in that, The second clamping part includes an inclined bracket adapted to the end inclination angle of the pipe workpiece. A guide slide rail is provided on the inclined bracket, and a guide slide block is movably connected to the guide slide rail. The sealing drive device includes a second linear drive mechanism positioned on the guide slide block, and the sealing joint is provided at the drive end of the second linear drive mechanism.

7. The airtightness testing clamping system as described in claim 6, characterized in that, The guide slide is connected to the retaining rod by a rotating shaft, and the inclined bracket is provided with a retaining position on the side corresponding to the guide slide rail. When the retaining rod rotates and flips to engage with the retaining position, the guide slide is positioned relative to the inclined bracket.

8. The airtightness testing clamping system as described in claim 3, characterized in that, The positioning clamping groove includes a first clamping groove with a U-shaped opening facing upwards. A clamping bracket is provided on the side of the first clamping groove. A clamping movable rod is connected to the clamping bracket by a rotating shaft. A clamping positioning block is provided at the movable end of the clamping movable rod. A clamping limiting member is provided on the clamping movable rod and the clamping bracket to limit the rotation of the clamping movable rod.

9. The airtightness testing clamping system as described in claim 1, characterized in that, The sealing joint is made of soft, high-density material, and its outer diameter is larger than the inner diameter of the pipe workpiece. When the sealing drive device drives the sealing joint to be inserted into the pipe workpiece through the end opening, the sealing joint and the pipe workpiece form an interference fit and seal.

10. The airtightness testing clamping system as described in claim 1, characterized in that, The marking drive mechanism includes a marking bracket, on which a third linear drive mechanism is provided facing the outside of the pipe wall of the clamped and positioned pipe workpiece. A connecting plate is provided on the drive end of the third linear drive mechanism, and a clamping groove for holding the marker pen is provided on the connecting plate.

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