Telescopic filter element connector welding clamp device

Abstract

The utility model relates to a telescopic filter element connector welding clamp device which comprises a connector piece clamp assembly. The interface piece clamp assembly comprises a clamp base; the interface piece positioning seat is arranged on one side of the clamp base and is in a hollow cylinder shape; the interface piece supporting seat is arranged between the clamp base and the interface piece positioning seat and is in a hollow cylinder shape, one end of the interface piece supporting seat abuts against the reducing position of the inner wall of the interface piece positioning seat, the other end of the interface piece supporting seat is provided with a shaft or a shaft hole, and the shaft or the shaft hole is in sliding connection with a shaft hole or a shaft arranged on the clamp base; the elastic piece is arranged between the clamp base and the connector piece supporting seat and sleeved on the outer wall of the shaft hole, one end of the elastic piece abuts against the clamp base, and the other end of the elastic piece abuts against the connector piece supporting seat. Compared with the prior art, various supporting structures are designed according to the structures of the bayonets, the end covers and the wing tips, and fit clearances are strictly controlled, so that when the suction part works, the suction part can ensure that all connectors are good in adsorbability, not prone to falling off and high in welding success rate.

Description

Technical Field

[0001] The utility model relates to the technical field of filter element welding fixtures, in particular to a retractable filter element interface welding fixture device. Background Art

[0002] The filter element is usually sealed into a whole by welding the cylinder (including inner and outer cylinders and filter materials) and the filter element interface. The filter element interface includes end caps, bayonet, wing tips, etc., which mainly play the role of sealing, connection positioning, and flow diversion of the filter element. During the welding process, the interface and the cylinder are heated at the same time, so that the welding surface melts, docks, cools and finally solidifies into a whole. The quality of the welding with the cylinder determines the integrity and reliability of the filter element.

[0003] Usually the filter element interface is located inside the welding fixture. However, for materials with a high melting point, the welding surface cannot melt evenly due to the fast thermal conductivity of the fixture metal material, resulting in poor welding quality or even the problem of being unable to weld.

[0004] Chinese patent CN217752853U discloses a positioning device for filter element end welding, which includes a filter element interface positioning component and a filter element end cover positioning component, so as to achieve simultaneous docking of the interface and the end cover with both ends of the filter element cylinder. The filter element end welding positioning device is not easy to disassemble, and the spring is not designed for positioning, which leads to problems such as jamming and non-vertical welding surface during the advancement process.

[0005] Chinese patent CN220217304U discloses a filter element interface welding fixture, including a front interface fixture assembly and a rear interface fixture assembly. The welding fixture is a fixed connection, and part of the interface is located outside the fixture, which improves the problem of uneven material melting, but it is easy to produce glue overflow when the interface is connected to the welding surface of the cylinder, and the inside of the fixture cannot be expanded and contracted, resulting in the inability to re-plasticize, affecting the consistency of appearance. Utility Model Content

[0006] The purpose of the present utility model is to provide a retractable filter element interface welding fixture device in order to overcome at least one of the defects of the above-mentioned prior art. The device designs a variety of support structures according to the structure of the bayonet, end cover and wing tip, strictly controls the matching gap, so that when the suction piece is working, each interface can have good adsorption, is not easy to fall off, and has a high welding success rate.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A retractable filter element interface welding fixture device, used to assist in welding the front end interface part and the rear end interface part to the two ends of the filter element cylinder, characterized in that the device comprises an interface fixture assembly respectively used to position and connect with the front end interface part and the rear end interface part and to move relatively;

[0009] The interface fixture assembly comprises:

[0010] Clamp base;

[0011] An interface member positioning seat disposed on one side of the fixture base, which is in the shape of a hollow cylinder;

[0012] The interface part support seat arranged between the fixture base and the interface part positioning seat is in the shape of a hollow cylinder, one end of which is abutted against the reduced diameter portion of the inner wall of the interface part positioning seat, and the other end is provided with a shaft or an shaft hole, which is slidably connected with the shaft hole or shaft arranged on the fixture base; the interface part support seat is provided with adsorption interfaces for matching the front-end interface part and the rear-end interface part, respectively, and when the front-end interface part and the rear-end interface part are placed on the adsorption interfaces, the front-end interface part and the rear-end interface part are connected to the interface positioning seat by vacuum adsorption;

[0013] The elastic member is arranged between the clamp base and the interface member support seat, is sleeved on the outer wall of the shaft hole, has one end abutting against the clamp base, and the other end abutting against the interface member support seat.

[0014] Further, when an axis is provided on the fixture base and the axis height>0, the axis is slidably connected to an axis hole provided at the other end of the interface support seat, and both the fixture base and the interface support seat are provided with a suction through hole.

[0015] Further, when an axial hole is provided on the clamp base and the axial hole height>0, the axial hole is slidably connected to the shaft provided at the other end of the interface part support seat, the clamp base and the interface part support seat are both provided with a suction through hole.

[0016] Further, when the clamp base is provided with an axis and the axis height=0, the clamp base is provided with a suction through hole.

[0017] Furthermore, when the front-end interface component and the rear-end interface component are placed in the adsorption interface, the front-end interface component and the rear-end interface component are also exposed from the upper surface of the interface component support seat.

[0018] Furthermore, the exposed height of the front end interface component and the rear end interface component is at least 1 / 2 of the thickness of their end faces.

[0019] Furthermore, the device also includes a push rod assembly connected to the interface fixture assembly; the push rod assembly includes: a fixture connecting seat in the shape of a hollow cylinder; a push rod arranged on the side of the fixture connecting seat away from the interface fixture assembly; and a vacuum suction piece arranged in the hole of the fixture connecting seat and connected to the fixture base.

[0020] Furthermore, the vacuum suction piece is connected to the clamp connecting seat and the clamp base respectively through bolts.

[0021] Furthermore, the clamp connecting seat and the push rod are connected by bolts.

[0022] Furthermore, the front end interface component includes a bayonet; and the rear end interface component includes an end cover or a wing tip.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] (1) The utility model provides a retractable filter element interface welding fixture device, which allows the elastic member to be positioned more accurately, and the support seat to always remain vertical during the pressure movement, thereby ensuring that the welding surfaces are parallel to each other and having a high welding yield rate.

[0025] (2) The utility model provides a retractable filter element interface welding fixture device, and the connection structure between the interface fixture assembly and the push rod assembly is simpler and more convenient to operate, and the interface fixture assembly can be easily and quickly disassembled and replaced.

[0026] (3) The utility model provides a retractable filter element interface welding fixture device, which designs a variety of support structures according to the structure of the bayonet, end cover and wing tip, and strictly controls the matching gap, so that when the suction piece is working, it can ensure that each interface has good adsorption properties, is not easy to fall off, and has a high welding success rate.

[0027] (4) The utility model provides a retractable filter element interface welding fixture device, in which the positioning seat has a secondary shaping effect on the overflow glue of the welding contact surface, and the filter element welding part is smooth and beautiful with high integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic cross-sectional structure diagram of a retractable filter element interface welding fixture device in an embodiment;

[0029] Figure 2 It is a schematic cross-sectional structure diagram of the filter element bayonet clamp assembly in the embodiment;

[0030] Figure 3 It is a schematic cross-sectional structure diagram of the filter element end cover fixture assembly in the embodiment;

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the filter element wing tip clamp assembly in the embodiment.

[0032] As shown in the figure: 1-bayonet clamp assembly; 2-end cover clamp assembly; 3-wing tip clamp assembly; 4-first push rod assembly; 5-second push rod assembly; 6-filter element cylinder; 11-bayonet; 12-bayonet positioning seat; 13-bayonet base; 14-bayonet clamp base, 15-first spring; 21-end cover; 22-end cover positioning seat; 23-end cover base; 24-end cover clamp base, 25-second spring; 31-wing tip; 32-wing tip positioning seat; 33-wing tip base; 34-wing tip clamp base, 35-third spring; 41-first vacuum suction member; 51-second vacuum suction piece; 42-first clamp connecting seat; 52-second clamp connecting seat, 43-first push rod; 53-second push rod; 44-first bolt; 54-second bolt; 55-third bolt; 131-first stepped hole; 132-second stepped hole; 133-symmetrical groove; 141-first axis; 134-first suction hole A; 142-first suction hole B; 231-second axis; 241-second axis hole; 232-second suction hole A; 242-second suction hole B; 341-third suction hole; a-welding end face; b-running direction. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0034] See also Figure 1-4 A retractable filter element interface welding fixture device is used to assist the welding of the front-end interface part and the rear-end interface part with the two ends of the filter element cylinder body respectively, the front-end interface part includes a bayonet; the rear-end interface part includes an end cover or a wing tip; the device includes an interface fixture assembly for positioning and connecting with the front-end interface part and the rear-end interface part and moving relatively;

[0035] The interface fixture assembly comprises:

[0036] Clamp base;

[0037] An interface member positioning seat disposed on one side of the fixture base, which is in the shape of a hollow cylinder;

[0038] The interface part support seat arranged between the fixture base and the interface part positioning seat is in the shape of a hollow cylinder, one end of which is abutted against the reduced diameter portion of the inner wall of the interface part positioning seat, and the other end is provided with a shaft or an shaft hole, which is slidably connected with the shaft hole or shaft arranged on the fixture base; the interface part support seat is provided with adsorption interfaces for matching the front-end interface part and the rear-end interface part, respectively, and when the front-end interface part and the rear-end interface part are placed on the adsorption interfaces, the front-end interface part and the rear-end interface part are connected to the interface positioning seat by vacuum adsorption;

[0039] The elastic member is arranged between the clamp base and the interface member support seat, is sleeved on the outer wall of the shaft hole, has one end abutting against the clamp base, and the other end abutting against the interface member support seat.

[0040] In some embodiments of the utility model, when an axis is provided on the clamp base and the axis height>0, the axis is slidably connected to an axis hole provided at the other end of the interface support seat, and both the clamp base and the interface support seat are provided with a suction through hole.

[0041] In some embodiments of the utility model, when an axial hole is provided on the clamp base and the axial hole height > 0, the axial hole is slidably connected to the shaft provided at the other end of the interface part support seat, and the clamp base and the interface part support seat are both provided with a suction through hole.

[0042] In some embodiments of the present invention, when the clamp base is provided with an axis and the axis height=0, the clamp base is provided with a suction through hole.

[0043] In some embodiments of the utility model, when the front-end interface component and the rear-end interface component are placed in the adsorption interface, the front-end interface component and the rear-end interface component also expose the upper surface of the interface component support seat; the exposed height of the front-end interface component and the rear-end interface component is at least 1 / 2 of the thickness of their end faces.

[0044] In some embodiments of the present utility model, the device further comprises a push rod assembly connected to the interface fixture assembly;

[0045] The push rod assembly comprises: a fixture connection seat in the shape of a hollow cylinder; a push rod arranged on the side of the fixture connection seat away from the interface fixture assembly; and a vacuum suction piece arranged in the hole of the fixture connection seat and connected to the fixture base.

[0046] In some embodiments of the present invention, the vacuum suction piece is respectively connected to the clamp connection seat and the clamp base through bolts; the clamp connection seat is connected to the push rod through bolts.

[0047] Example

[0048] like Figure 1-4As shown, a retractable filter element interface welding fixture device includes an interface fixture assembly and a push rod assembly; the interface fixture assembly includes a bayonet fixture assembly 1, an end cap fixture assembly 2 and a wing tip fixture assembly 3, and the push rod assembly includes a first push rod assembly 4 and a second push rod assembly 5. The bayonet fixture assembly 1 is fixedly connected to the first push rod assembly 4 by bolts, and the end cap fixture assembly 2 and the wing tip fixture assembly 3 can be fixedly connected to the second push rod assembly 5 by bolts, and can be quickly disassembled and assembled according to different scene requirements.

[0049] The bayonet fixture assembly 1 includes a bayonet 11, a bayonet positioning seat 12, a bayonet support seat 13, a bayonet fixture base 14, and a first spring 15. The bayonet positioning seat 12 is fixedly connected to the bayonet fixture base 14 by bolts uniformly distributed in the circumferential direction. The bayonet positioning seat 12 is provided with a circular through hole for positioning the bayonet 11 and playing a certain supporting role. The thickness of the bayonet welding end face is h1, which is higher than the height of the end face of the positioning seat 12 (1 / 2)*h1. The bayonet support seat 13 is located inside the positioning seat 12 and is coaxially connected with the positioning seat 12 to form a sliding connection. The support seat 13 is provided with a first stepped hole 131, a second stepped hole 132 and a symmetrical groove 133, wherein the first stepped hole 131 is coaxial with the bayonet 11 for accommodating and supporting the bayonet 11, the symmetrical groove 133 is used to accommodate the ear structure on the bayonet 11, and the second stepped hole 132 is coaxial with the first axis 141 on the bayonet fixture base 14 to form a sliding connection sleeve. The first spring 15 is sleeved on the outside of the sliding connection sleeve formed by the bayonet support seat 13 and the bayonet clamp base 14, which guides the first spring 15, and the bayonet support seat 13 and the bayonet clamp base 14 are both provided with an annular groove with a depth of 1 mm for positioning the first spring 15.

[0050] The front first push rod assembly 4 includes a first vacuum suction member 41, a first clamp connection seat 42, and a first push rod 43. The first vacuum suction member 41 is located inside the first clamp connection seat 42, is coaxial with the first clamp connection seat 42, and is locked through bolt holes uniformly distributed around the first clamp connection seat 42. The first clamp connection seat 42 and the first push rod 43 are fixedly connected by bolts. A step hole is provided inside the first shaft 141, and the bayonet clamp assembly 1 is connected to the first push rod assembly 4 by a first bolt 44.

[0051] The first suction holes A134 are evenly distributed on the bayonet support seat 13, and the first suction holes B142 are evenly distributed on the bayonet clamp base 14. The first suction holes A134 and the first suction holes B142 are connected to the area between the bayonet support seat 13 and the bayonet clamp base 14. When the first vacuum suction member 41 is in operation, the air in the connected area is sucked away to form a vacuum environment, and the bayonet 11 is subjected to the atmospheric pressure and is pressed against the surface of the bayonet positioning seat 12, so that the position of the bayonet 11 is further fixed.

[0052] The end cover fixture assembly 2 includes an end cover 21, an end cover positioning seat 22, an end cover support seat 23, an end cover fixture base 24, and a second spring 25. The end cover positioning seat 22 is fixedly connected to the end cover fixture base 24 by bolts uniformly distributed in the circumferential direction. The end cover positioning seat 22 has a circular through hole for positioning the end cover 21 and playing a certain supporting role. The end face of the end cover welding has a thickness of h2, which is higher than the end face of the end cover positioning seat 22 by a height of (1 / 2)*h2. The end cover support seat 23 is located inside the end cover positioning seat 22 and is coaxially connected with the end cover to form a sliding connection. The end cover support seat 23 is provided with a stepped groove for supporting the end cover 21. The second shaft 231 on the end cover support seat 23 is coaxial with the second shaft hole 241 on the end cover fixture base 24 to form a sliding connection sleeve. The second shaft 231 has a stepped through hole inside. The second spring 25 is sleeved on the outside of the sliding connection sleeve formed by the end cover support seat 23 and the end cover clamp base 24, which guides the second spring 25, and the end cover support seat 23 and the end cover clamp base 24 are both provided with a circular groove with a depth of 1 mm for positioning the second spring 25.

[0053] The second push rod assembly 5 includes a second vacuum suction member 51, a second clamp connection seat 52, and a second push rod 53. The second vacuum suction member 51 is located inside the second clamp connection seat 52, is coaxial with the second clamp connection seat 52, and is locked through bolt holes uniformly distributed around the second clamp connection seat 52. The second clamp connection seat 52 and the second push rod 53 are fixedly connected by bolts. The second bolt 54 passes through the stepped through hole inside the second shaft 231 and the second shaft hole 241 to connect the end cover clamp assembly 2 with the second push rod assembly 5.

[0054] The second suction holes A232 are evenly distributed on the end cap support seat 23, and the second suction holes B 242 are evenly distributed on the bayonet clamp base 24. The second suction holes A232 and the second suction holes B 242 are connected to the area between the end cap support seat 23 and the end cap clamp base 24. When the second vacuum suction member 51 is in operation, the air in the connected area is sucked away to form a vacuum environment, and the end cap 21 is subjected to the atmospheric pressure and is pressed against the surface of the end cap positioning seat 22, thereby further fixing the position of the end cap 21.

[0055] The wing tip clamp assembly 3 includes a wing tip 31, a wing tip positioning seat 32, a wing tip support seat 33, a wing tip clamp base 34, and a third spring 35. The wing tip positioning seat 32 is fixedly connected to the wing tip clamp base 34 by bolts uniformly distributed in the circumference. The wing tip positioning seat 32 is provided with a circular through hole for positioning the wing tip 31 and playing a certain supporting role. The thickness of the wing tip welding end face is h3, which is higher than the height of the end face of the wing tip positioning seat 32 (1 / 2)*h3. The wing tip support seat 33 is located inside the wing tip positioning seat 32 and forms a sliding connection with the wing tip positioning seat 32 coaxially. The wing tip support seat 33 is provided with a through hole for accommodating and supporting the wing tip 31. The third spring 35 is sleeved on the outside of the shaft hole of the wing tip support seat 33 to guide the third spring 35. The wing tip support seat 33 and the wing tip clamp base 34 are both provided with a circular groove with a depth of 1 mm for positioning the third spring 35. The third bolt 55 passes through the through hole of the wing tip support seat 33 and the stepped hole of the clamp base 34 to connect the wing tip clamp assembly 3 with the second push rod assembly 5 .

[0056] According to production requirements, when the end cover clamp assembly 2 and the wing tip clamp assembly 3 need to be replaced, quick replacement can be achieved by simply removing the second bolt 54 .

[0057] The third suction holes 341 are evenly distributed on the wing tip clamp base 34, and the third suction holes 341 are connected to the area between the wing tip support base 33 and the wing tip clamp base 34. When the second vacuum suction member 51 is in operation, the air in the connected area is sucked away to form a vacuum environment, and the wing tip 31 is subjected to the atmospheric pressure and is pressed against the surface of the wing tip positioning base 32, thereby further fixing the position of the wing tip 31.

[0058] When the filter element starts to be welded, the welding surfaces of the bayonet 11, the end cover 21 (or the wing tip 31) and the welding surface of the filter element cylinder 6 need to be heated by the heating device respectively, so that each welding surface reaches a molten state. The first welding push rod 43 and the second welding push rod 53 move toward each other at the same time, and the bayonet clamp assembly 1 and the end cover clamp assembly 2 (or the wing tip clamp assembly 3) are synchronously pushed toward the filter element cylinder 6. After the contact of each welding surface, it is retracted into the inside of each welding clamp assembly under the pressure. After the secondary shaping of the positioning seat of each component, the bayonet 11, the end cover 21 (or the wing tip 31) and the cylinder 6 are sealed and welded, and integrally formed.

[0059] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A retractable filter element interface welding fixture device, used to assist the welding of the front end interface part and the rear end interface part with the two ends of the filter element cylinder, characterized in that: The device comprises an interface fixture assembly respectively used for positioning and connecting with the front-end interface and the rear-end interface and for relative movement; The interface fixture assembly comprises: Clamp base; An interface member positioning seat disposed on one side of the fixture base, which is in the shape of a hollow cylinder; The interface part support seat arranged between the fixture base and the interface part positioning seat is in the shape of a hollow cylinder, one end of which is abutted against the reduced diameter portion of the inner wall of the interface part positioning seat, and the other end is provided with a shaft or an axial hole, which is slidably connected with the axial hole or shaft arranged on the fixture base; the interface part support seat is provided with adsorption interfaces for respectively matching the front-end interface part and the rear-end interface part, and when the front-end interface part and the rear-end interface part are placed on the adsorption interfaces, the front-end interface part and the rear-end interface part are connected to the interface positioning seat by vacuum adsorption; The elastic member is arranged between the clamp base and the interface member support seat, is sleeved on the outer wall of the shaft hole, has one end abutting against the clamp base, and the other end abutting against the interface member support seat.

2. A retractable filter element interface welding fixture device according to claim 1, characterized in that: When the fixture base is provided with an axis and the axis height>0, the axis is slidably connected to the axis hole provided at the other end of the interface support seat, and the fixture base and the interface support seat are both provided with a suction through hole.

3. A retractable filter element interface welding fixture device according to claim 1, characterized in that: When an axial hole is provided on the clamp base and the axial hole height>0, the axial hole is slidably connected to the shaft provided at the other end of the interface support seat, and the clamp base and the interface support seat are both provided with a suction through hole.

4. The retractable filter element interface welding fixture device according to claim 1, characterized in that: When the fixture base is provided with an axis and the axis height=0, the fixture base is provided with a suction through hole.

5. The retractable filter element interface welding fixture device according to claim 1, characterized in that: When the front-end interface component and the rear-end interface component are placed in the adsorption interface, the front-end interface component and the rear-end interface component are still exposed from the upper surface of the interface component support seat.

6. A retractable filter element interface welding fixture device according to claim 5, characterized in that: The exposed heights of the front end interface component and the rear end interface component are at least 1 / 2 of the thickness of their end faces.

7. The retractable filter element interface welding fixture device according to claim 1, characterized in that: The device also includes a push rod assembly connected to the interface fixture assembly; The push rod assembly comprises: A fixture connection seat in the shape of a hollow cylinder; A push rod disposed on a side of the fixture connection seat away from the interface fixture assembly; A vacuum suction piece is arranged in the hole of the clamp connection seat and connected to the clamp base.

8. The retractable filter element interface welding fixture device according to claim 7, characterized in that: The vacuum suction piece is connected to the fixture connecting seat and the fixture base respectively through bolts.

9. The retractable filter element interface welding fixture device according to claim 7, characterized in that: The clamp connecting seat is connected to the push rod via bolts.

10. The retractable filter element interface welding fixture device according to claim 1, characterized in that: The front end interface part includes a bayonet; the rear end interface part includes an end cover or a wing tip.

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