An airtightness detection auxiliary positioning sealing device

Abstract

The utility model provides a kind of airtight detection auxiliary positioning sealing device, connecting column is fixed on upper die holder, connecting column is connected with lifting equipment pull rod, positioning seat is sleeved with workpiece, screw is connected with upper die holder threadedly, pressing plate is located above upper die holder, pressing plate upper end and screw head are connected by spring, top rod is vertically through upper die holder middle part, top rod upper end and pressing plate lower end are fixedly connected, top rod and upper pressing block are fixedly connected, upper pressing block cooperates with workpiece upper surface, side baffle is fixedly provided with cylinder, cylinder rod and connecting rod head are hinged, connecting rod middle part and side baffle fixed support are hinged, side baffle middle part is equipped with plug, connecting rod tail and plug rear end are hinged, plug front end and workpiece mounting hole cooperate;The utility model's positioning sealing device sets up the compression sealing structure of elastic floating in workpiece upper portion, workpiece side surface sets up the compression sealing structure of pneumatic connecting rod, airtight detection positioning seat power source is compressed air, can realize product initial positioning and airtight detection function integration.

Description

Technical Field

[0001] This utility model relates to the field of airtight sealing technology, and in particular to an airtightness detection auxiliary positioning sealing device. Background Technology

[0002] Precision product contract manufacturing is an important guarantee for driving product transformation and upgrading. Contract manufacturing factories need to customize or manufacture equipment that is suitable for the products being processed, based on the structural characteristics of the products and the technical parameters required for processing. Among these, airtightness detection auxiliary positioning and sealing devices are indispensable.

[0003] Existing airtightness testing devices have simple mechanisms but numerous procedures, resulting in low production efficiency and high production costs. Therefore, it is necessary to improve the existing airtightness testing methods to adapt to the mass production of airtightness testing products with different shapes and structures. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary positioning and sealing device for airtightness testing, which can comprehensively and accurately position the product from all angles, thus solving the problem of low testing efficiency in the existing product testing process.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An airtightness testing auxiliary positioning and sealing device includes an upper mold base, a push rod, a pressure plate, a connecting column, a screw, a positioning block, a positioning seat, a lower mold base, and a side baffle. The connecting column is fixed to the upper mold base and connected to a pull rod of an external lifting device. The positioning block, positioning seat, and side baffle are respectively fixed to the front, middle, and rear of the lower mold base. A workpiece is sleeved on the positioning seat, which is equipped with an air pipe connector. The upper and lower mold bases are vertically connected by a guide column. The upper mold base is equipped with an adjusting screw, and the lower mold base is equipped with a limiting post. The distance between the upper and lower mold bases is adjusted by the adjusting screw and the limiting post. The screw vertically penetrates the middle of the upper mold base and is vertically movably connected to the upper mold base by a thread. The pressure plate is located above the upper mold base. The upper end of the pressure plate and the screw head are connected by a spring. The push rod passes through the middle of the upper mold base vertically. The upper end of the push rod is fixedly connected to the lower end of the pressure plate. The lower end of the push rod is fixedly connected to the upper end of the upper pressure block. The upper pressure block is pressed against the upper surface of the workpiece. Two cylinders are fixedly provided on the left and right sides of the side baffle. Each cylinder is provided with a connecting rod. The cylinder rods at the rear end of the two cylinders and the heads of the two connecting rods are respectively hinged. The middle part of the two connecting rods and the two fixed brackets at the rear end of the side baffle are respectively hinged. Two plugs are provided through the middle of the side baffle. The tails of the two connecting rods and the rear ends of the two plugs are respectively hinged. The front end of the plug is positioned in conjunction with the mounting hole at the rear end of the workpiece.

[0007] Furthermore, the lower end of the pressure plate is provided with an upper sealing ring, and the pressure plate seals with the upper surface of the workpiece through the upper sealing ring.

[0008] Furthermore, a lower sealing ring is fitted onto the outer side of the positioning seat, and the positioning seat is sealed by the lower sealing ring and the lower surface of the workpiece.

[0009] Furthermore, the upper mold base has a guide sleeve inside the mounting hole for accommodating the guide post, and the outer wall of the guide post mates with the inner wall of the guide sleeve.

[0010] Furthermore, a rear sealing ring is fitted onto the front end of the plug, and the plug is sealed by the rear sealing ring and the rear end of the workpiece.

[0011] Furthermore, the rear end of the side baffle is fixedly connected to the lower mold base via a stop block.

[0012] The positioning and sealing device of this utility model has an elastic floating pressing and sealing structure on the upper part of the workpiece and a pneumatic connecting rod pressing and sealing structure on the side of the workpiece. The power source of the air tightness detection positioning seat is compressed air. It can realize the functions of initial positioning and air tightness detection of the product in one unit. The pressing structure is simple and stable, and it is suitable for aluminum die-casting parts, casting parts and powder metallurgy parts, and has versatility. Attached Figure Description

[0013] Figure 1 This is a disassembled structural diagram of the present invention;

[0014] Figure 2 This is a front structural view of the present invention;

[0015] Figure 3 This is a side view of the present invention.

[0016] Figure 4 This is a top view of the lower mold base of this utility model.

[0017] Figure label:

[0018] 1. Workpiece; 2. Upper sealing ring; 3. Upper pressure block; 4. Adjusting screw; 5. Top rod;

[0019] 6 Upper mold base, 7 Guide sleeve, 8 Pressure plate, 9 Spring, 10 Connecting column;

[0020] 11 Screw, 12 Positioning block, 13 Cylinder, 14 Limiting post, 15 Lower sealing ring;

[0021] 16. Air pipe connector, 17. Positioning seat, 18. Lower mold base, 19. Guide post, 20. Side baffle;

[0022] 21 Rear seal ring, 22 Plug, 23 Fixing bracket, 24 Stop block, 25 Hinge,

[0023] 26 top blocks, 27 connecting rods. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] This utility model discloses an airtightness detection auxiliary positioning sealing device, such as Figure 1 As shown, it includes an upper mold base 6, a push rod 5, a pressure plate 8, a connecting column 10, a screw 11, a positioning block 12, a positioning seat 17, a lower mold base 18, and a side baffle 20. The connecting column 10 is fixed on the upper mold base 6 and is connected to the pull rod of the external lifting equipment.

[0026] like Figure 2 As shown, the upper mold base 6 and the lower mold base 18 are connected vertically by a guide post 19. The upper mold base 6 has a guide sleeve 7 in the mounting hole for accommodating the guide post 19, and the outer wall of the guide post 19 fits with the inner wall of the guide sleeve 7.

[0027] like Figure 2 and Figure 3 As shown, two L-shaped positioning blocks 12, a positioning seat 17, and a side baffle 20 are fixed to the front, middle, and rear of the lower mold base 18, respectively. The workpiece 1 is sleeved on the positioning seat 17. The front and rear ends of the workpiece 1 are limited by the L-shaped positioning blocks 12 and the side baffle 20. The positioning seat 17 is provided with an air pipe connector 16. The lower sealing ring 15 is sleeved on the outside of the positioning seat 17. The positioning seat 17 is sealed by the cooperation between the lower sealing ring 15 and the lower surface of the workpiece 1 to ensure the airtightness of the positioning seat 17.

[0028] The upper mold base 6 has two adjusting screws 4 at its two corners, and the lower mold base 18 has two limiting posts 14 at its two corners. The upper end of the limiting post 14 and the lower end of the adjusting screw 4 are engaged. The upper mold base 6 and the lower mold base 18 can change their total height by rotating the adjusting screw 4, thereby adjusting the distance between the upper mold base 6 and the lower mold base 18.

[0029] Five screws 11 extend vertically through the middle of the upper mold base 6. The five screws 11 are connected to the upper mold base 6 vertically by threads. The pressure plate 8 is located above the upper mold base 6. The upper end of the pressure plate 8 and the heads of the five screws 11 are connected by five springs 9.

[0030] Four ejector rods 5 extend vertically through the middle of the upper mold base 6. The upper ends of the four ejector rods 5 are fixedly connected to the lower ends of the pressure plate 8, and the lower ends of the four ejector rods 5 are fixedly connected to the upper ends of the upper pressure block 3. The upper pressure block 3 is pressed tightly against the upper surface of the workpiece 1. The lower end of the pressure plate 8 is provided with an upper sealing ring 2, and the pressure plate 8 is sealed with the upper surface of the workpiece 1 through the upper sealing ring 2.

[0031] During operation, adjust the height of the five screws 11 to be level. By changing the height of the five screws 11, the height of the pressure plate 8 and the upper pressure block 3 can be adjusted. The pressure plate 8 and the upper pressure block 3 can float up and down by the spring 9.

[0032] like Figure 4 As shown, the rear end of the side baffle 20 is fixedly connected to the lower mold base 28 through three L-shaped blocks 24. Two cylinders 13 with height difference are fixedly installed on the left and right sides of the side baffle 20. Each cylinder 13 is provided with a connecting rod 27. The two connecting rods 27 are set horizontally with one high and one low. The cylinder rods at the rear end of the two cylinders 13 and the heads of the two connecting rods 27 are respectively hinged by hinges 25. The middle part of the two connecting rods 27 and the two fixed brackets 23 at the rear end of the side baffle 20 are respectively hinged by hinges 25. Two plugs 22 are provided through the middle of the side baffle 20. The tails of the two connecting rods 27 and the rear ends of the two plugs 22 are respectively hinged by hinges 25.

[0033] Two plugs 22 with different heights are positioned in conjunction with the mounting holes at the rear end of the workpiece 1. The front end of the plug 22 is fitted with a rear sealing ring 21, and the two plugs 22 are sealed by the rear sealing ring 21 and the upper and lower mounting holes at the rear end of the workpiece 1.

[0034] This utility model device is an auxiliary device for airtightness testing, and its power source is pneumatic.

[0035] In use, first connect the upper part of the four connecting columns 10 to the tie rod on the external lifting device, then use the pressure plate to press the lower mold base 18 from the outside, and then connect the air pipe to the cylinder 13 and the air pipe connector 16.

[0036] After completing the above operations, click the control switch, and the lever will move upward. After reaching the limit position, it will stop running. The device of this utility model is in the open state. Place the workpiece 1 on the positioning seat 17. Two L-shaped positioning blocks 12 block the front end face of the workpiece 1 to achieve positioning of the workpiece 1. At this time, the lower plane of the workpiece 1 is in contact with the lower sealing ring 15.

[0037] Click the control switch again, and the device will move downwards. When it stops moving, the bottom of the adjusting screw 4 contacts the upper part of the limit post 14. At this time, the upper sealing ring 2 presses the upper surface of the workpiece 1 under the force of the spring 9.

[0038] At the same time, the cylinder rod of cylinder 13 pushes out, causing the connecting rod structure composed of connecting rod 27, top block 26, hinge 25, fixed bracket 23 and plug 22 to flip inward, so that the rear sealing ring 21 on plug 22 is inserted into the positioning hole of workpiece 1.

[0039] After sealing the workpiece 1, the test gas enters the cavity of the workpiece 1 through the air passage inside the positioning seat 17 from the air pipe connector 16 position to perform a sealing test on the workpiece 1.

[0040] After the test is completed, click the control switch, and the device will open again to remove workpiece 1.

[0041] This completes one full operation.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An airtightness detection auxiliary positioning sealing device, characterized in that, The assembly includes an upper mold base (6), a push rod (5), a pressure plate (8), a connecting column (10), a screw (11), a positioning block (12), a positioning seat (17), a lower mold base (18), and a side baffle (20). The connecting column (10) is fixed on the upper mold base (6) and is connected to the pull rod of an external lifting device. The positioning block (12), the positioning seat (17), and the side baffle (20) are respectively fixed to the front, middle, and rear of the lower mold base (18). The workpiece (1) is sleeved on the positioning seat (17). The positioning seat (17) is provided with an air pipe connector (16). The upper mold seat (6) and the lower mold seat (18) are connected vertically through a guide post (19). The upper mold seat (6) is provided with an adjusting screw (4), and the lower mold seat (18) is provided with a limiting post (14). The upper mold seat (6) and the lower mold seat (18) are adjusted in distance by the adjusting screw (4) and the limiting post (14). The screw (11) passes vertically through the middle of the upper mold seat (6), and the screw (11) and the upper mold seat (6) are connected vertically by a thread. The pressure plate (8) is located above the upper mold base (6). The upper end of the pressure plate (8) and the head of the screw (11) are connected by a spring (9). The push rod (5) passes through the middle of the upper mold base (6) vertically. The upper end of the push rod (5) is fixedly connected to the lower end of the pressure plate (8). The lower end of the push rod (5) is fixedly connected to the upper end of the upper pressure block (3). The upper pressure block (3) is pressed against the upper surface of the workpiece (1). Two cylinders (13) are fixedly provided on the left and right sides of the side baffle (20). Each cylinder (13) is correspondingly provided with There is a connecting rod (27), the rear cylinder rods of two cylinders (13) and the heads of the two connecting rods (27) are respectively hinged by hinges (25), the middle part of the two connecting rods (27) and the rear end of the side baffle (20) are respectively hinged by hinges (25), the middle part of the side baffle (20) is provided with two plugs (22) running through the front and rear, the tail of the two connecting rods (27) and the rear end of the two plugs (22) are respectively hinged by hinges (25), the front end of the plug (22) and the rear end mounting hole of the workpiece (1) are matched and positioned.

2. The airtightness detection auxiliary positioning sealing device according to claim 1, characterized in that, The pressure plate (8) is provided with an upper sealing ring (2) at its lower end. The pressure plate (8) is sealed by the upper sealing ring (2) and the upper surface of the workpiece (1).

3. The airtightness detection auxiliary positioning sealing device according to claim 1, characterized in that, The lower sealing ring (15) is sleeved on the outside of the positioning seat (17), and the positioning seat (17) is sealed by the lower sealing ring (15) and the lower surface of the workpiece (1).

4. The airtightness detection auxiliary positioning sealing device according to claim 1, characterized in that, The upper mold base (6) has a guide sleeve (7) in the mounting hole for accommodating the guide post (19), and the outer wall of the guide post (19) is fitted with the inner wall of the guide sleeve (7).

5. The airtightness detection auxiliary positioning sealing device according to claim 1, characterized in that, The front end of the plug (22) is fitted with a rear sealing ring (21), and the plug (22) is sealed by the rear sealing ring (21) and the rear end of the workpiece (1).

6. The airtightness detection auxiliary positioning sealing device according to claim 1, characterized in that, The rear end of the side baffle (20) is fixedly connected to the lower mold base (18) via a stop block (24).

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