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CN-122016168-A - Air tightness detection device for plate type throttle valve production

CN122016168ACN 122016168 ACN122016168 ACN 122016168ACN-122016168-A

Abstract

The invention relates to the technical field of industrial production, and particularly discloses an air tightness detection device for plate-type throttle valve production, which comprises a supporting seat, and is characterized in that an internal hollow chip removal box is fixed on the supporting seat, a lifting platform is fixed at the center above the chip removal box, two sealing detection assemblies which are in sliding connection with the upper part of the chip removal box are arranged on two sides of the lifting platform, the sealing detection assemblies comprise detection seats, detection channels which are matched with the diameters of inlet and outlet of a valve are rotatably connected with the detection seats, one ends of the detection channels, far away from the lifting platform, are provided with sealing assemblies for sealing the detection channels, and the sealing assemblies comprise sealing seats which are respectively positioned on two sides of the chip removal box and are in sliding connection with the supporting seat, and are used for solving the problem that the existing detection device is in a false sealing mode due to machining waste chips in the detection process.

Inventors

  • LI FUHU
  • XU PENG

Assignees

  • 江苏益马机械有限公司

Dates

Publication Date
20260512
Application Date
20260205

Claims (10)

  1. 1. The air tightness detection device for plate throttle valve production is characterized by comprising a supporting seat (1), wherein a chip removal box (101) with a hollow inside is fixed on the supporting seat (1); A lifting platform (4) is fixed at the center above the chip removal box (101), and two sealing detection assemblies (3) which are in sliding connection with the upper part of the chip removal box (101) are arranged on two sides of the lifting platform (4); The sealing detection assembly (3) comprises a detection seat (301), wherein a detection channel (302) which is matched with the diameter of an inlet and an outlet of a valve is rotationally connected to the detection seat (301), and one end, far away from the lifting platform (4), of the detection channel (302) is provided with a sealing assembly (2) for sealing the detection channel; The sealing assembly (2) comprises sealing seats (209) which are respectively positioned on two sides of the chip removal box (201) and are in sliding connection with the supporting seat (1), a sealing channel (2091) is formed in one side, facing the lifting platform (4), of the sealing seat (209), an air cylinder I (201) is fixed at the bottom of the sealing channel (2091), a motor I (202) is fixed at the output end of the air cylinder I (201), and a sealing column (203) with a hollow inside is fixed at the output end of the motor I (202); A plurality of friction protrusions (204) and a plurality of through holes (205) which are in a spiral array are fixed on the end face of one end, far away from the motor I (202), of the sealing post (203), the friction protrusions (204) are spirally distributed in a plurality of circles along the circumferential direction of the end face of the sealing post (203), one through hole (205) is uniformly arranged between every two adjacent circles of friction protrusions (204), and the through holes (205) are all formed along the axial direction of the sealing post (203) and are communicated with a hollow cavity in the sealing post (203); The end face of the sealing column (203) far away from the motor I (202) is also provided with a spiral chip removal groove (206), and the chip removal groove (206) is positioned between two adjacent circles of friction protrusions (204) and is consistent with the spiral direction of the friction protrusions (204); one end of the chip groove (206) extends to the center of the end face of the sealing post (203), and the other end extends along the spiral direction and penetrates through the outer wall of the sealing post (203) to be communicated with the outside of the sealing post (203).
  2. 2. The tightness detection device for plate throttle valve production according to claim 1, wherein a honeycomb plate (207) is fixed on one side of the inner wall of the sealing column (203) close to the through hole (205), a plurality of honeycomb holes (2071) are formed in the end face of the honeycomb plate (207), and the honeycomb holes (2071) are communicated with the through holes (205).
  3. 3. The tightness detection device for plate throttle valve production according to claim 2, wherein a negative pressure pump (208) is provided inside the seal column (203), and the negative pressure pump (208) communicates with the through hole (205) through a honeycomb plate (207).
  4. 4. The tightness detection device for plate throttle valve production according to claim 1, wherein the outer diameter of the sealing post (203) is adapted to the inner diameter of the detection channel (301).
  5. 5. A plate throttle valve production air tightness detection device according to claim 3, wherein a first discharging channel (210) is formed on the inner wall of the hollow cavity inside the sealing column (203), and an electric switch (211) for controlling the opening and closing of the first discharging channel (210) is arranged in the first discharging channel; A second discharging channel (212) is formed in the inner wall of the sealing channel (2091), and the second discharging channel (212) enables the sealing channel (2091) to be communicated with the vacuum chamber inside the sealing seat (209).
  6. 6. The tightness detection device for plate throttle valve production according to claim 1, wherein the center of the sealing column (203) is fixedly connected with the output end of the motor I (202).
  7. 7. The tightness detection device for plate throttle valve production according to claim 1, wherein the detection channel (302) is annular, a first gear (3021) is fixed on the outer wall of the detection channel, a second gear (3022) is meshed with the first gear (3021), a motor shaft is fixed at the center of the second gear (3022), the motor shaft is connected with the output end of the second motor (5), and the second motor (5) is fixed on the outer wall of the detection seat (301).
  8. 8. The air tightness detection device for plate throttle valve production according to claim 7, wherein a plurality of mounting grooves (303) and a plurality of air suction holes (304) are formed in the inner wall of the detection channel (302) along the length of the channel, the plurality of mounting grooves (303) and the plurality of air suction holes (304) are symmetrically distributed based on circle centers, and air tightness detection sensors (305) are fixedly installed in the plurality of mounting grooves (303).
  9. 9. The air tightness detection device for plate throttle valve production according to claim 8, wherein an annular air cavity (306) is coaxially arranged in the detection channel (302), the annular air cavity (306) is communicated with a plurality of air suction holes (304), an annular channel (307) is arranged on the outer wall of the annular air cavity (306) along the circumferential direction, the annular channel (307) enables the annular air cavity (306) to be communicated with the external environment, a sealing ring (308) is rotationally connected in the annular channel (307), and air holes (309) are formed in the inner bottom of the sealing ring (308); An air pump (310) is fixed at the bottom of the detection seat (301), one end of the air pump (310) is fixed with the air hole (309), and the other end of the air pump penetrates through the detection seat (301) and is communicated with the chip removal box (101); A chip removal groove I (1011) is formed in the top of the chip removal box (101), the chip removal groove I (1011) is located on a sliding path of the air hole (309), and when the detection seat (301) is located on the chip removal box (101) to slide, the chip removal groove I (1011) is always communicated with the air hole (309).
  10. 10. The tightness detection device for plate throttle valve production according to claim 1, wherein a second cylinder (6) is arranged on one side, far away from the seal detection assembly (3), of the seal assembly (2), the fixed end of the second cylinder (6) is fixed with the supporting seat (1), and the output end of the second cylinder (6) is fixed with the seal seat (209).

Description

Air tightness detection device for plate type throttle valve production Technical Field The invention relates to the technical field of industrial production, in particular to an air tightness detection device for plate type throttle valve production. Background In the field of industrial production, a plate type throttle valve is used as a key fluid control element and is widely applied to various hydraulic systems, pneumatic systems and automatic equipment, and the performance of the plate type throttle valve directly influences the operation stability and reliability of the whole system. The air tightness is a critical performance index of the plate type throttle valve, and if the throttle valve has the air tightness problem, the system pressure is unstable, the flow control is inaccurate, and even serious consequences such as equipment failure, safety accidents and the like are caused. Therefore, in the production process of the plate throttle valve, strict and accurate air tightness detection is a key link for ensuring the quality of products. The traditional plate throttle valve air tightness detection method has a plurality of limitations. On the one hand, the partial detection mode adopts manual operation, relies on experience and skill level of operators, has low detection efficiency, is difficult to ensure accuracy and consistency of detection results, and is easy to cause conditions of missed detection, false detection and the like. On the other hand, although some automatic detection devices improve detection efficiency to a certain extent, because the processing sweeps remained on the surface of the throttle valve and the sweeps generated in the sealing process are easily accumulated at the sealing part, a false seal exists on the sealing effect, a completely-closed detection chamber is difficult to form, gas leakage exists in the detection process, the detection precision is affected, the detection result is disturbed, and even secondary damage to the throttle valve is likely to occur. In addition, the existing detection device has the defects in structural design and functional integration, so that the omnidirectional and dynamic air tightness detection of the throttle valve is difficult to realize, and the requirements of modern industrial production on high-quality and high-efficiency detection cannot be met. Therefore, an airtight detection device for plate throttle valve production is proposed at present for solve current detection device and have the problem of false seal because of processing sweeps in the testing process. Disclosure of Invention The invention aims to provide an air tightness detection device for plate type throttle valve production, which aims to solve the problems in the background technology. In order to achieve the above purpose, the present invention adopts the following technical scheme: The air tightness detection device for plate throttle valve production is characterized by comprising a supporting seat, wherein a chip removal box with a hollow inside is fixed on the supporting seat; a lifting platform is fixed at the center above the chip removal box, and two sealing detection assemblies which are in sliding connection with the upper part of the chip removal box are arranged on two sides of the lifting platform; The sealing detection assembly comprises a detection seat, wherein a detection channel matched with the diameter of an inlet and an outlet of a valve is rotationally connected to the detection seat, and one end of the detection channel, which is far away from the lifting platform, is provided with a sealing assembly for sealing the detection channel; The sealing assembly comprises sealing seats which are respectively positioned at two sides of the chip removal box and are in sliding connection with the supporting seat, a sealing channel is formed in one side, facing the lifting platform, of the sealing seat, a first air cylinder is fixed at the bottom of the sealing channel, a first motor is fixed at the output end of the first air cylinder, and a sealing column with a hollow inside is fixed at the output end of the first motor; The sealing post is fixed with a plurality of friction bulges and a plurality of through holes which are in a spiral array on the end face of one end far away from the motor, the friction bulges are in multi-circle spiral arrangement along the circumferential direction of the end face of the sealing post, one through hole is uniformly arranged between every two adjacent circles of friction bulges, and the through holes are all arranged along the axial direction of the sealing post and are communicated with a hollow cavity in the sealing post; The end face of the sealing column, which is far away from the motor I, is also provided with a spiral chip groove, and the chip groove is positioned between two adjacent circles of friction protrusions and is consistent with the spiral direction of the friction protrusions; One end of the