Automatic trimming machine for aviation rubber sealing ring

Abstract

An automatic trimming machine for aviation rubber sealing rings belongs to the technical field of sealing ring production. The upper end of the base is plugged and fixed to the support shaft, and a nylon driven wheel is provided on the outer side of the front end of the support shaft. The rubber sealing ring to be repaired is placed in the nylon driven wheel. The upper end of the base is fixedly connected to the fixed plate, and the lower end of the fixed plate is provided with a mounting groove. A pneumatic drill is placed in the mounting groove. The working end of the pneumatic drill is connected to a small grinding head, and the small grinding head is arranged to fit the parting line of the rubber sealing ring to be repaired. The hose at the rear end of the pneumatic drill is connected to the hose of the foot pneumatic switch through a connector, and the foot pneumatic switch is connected to an air compressor. The present invention uses a mechanical mechanism instead of manual operation to complete the trimming of the sealing ring, thereby improving the qualified rate of aviation sealing ring production, improving production efficiency, and reducing labor. At the same time, the position of the pneumatic drill and / or the nylon driven wheel can be adjusted according to the cross-sectional size of different sealing rings, making it flexible and convenient to use.

Description

Technical Field

[0001] The invention relates to an automatic trimming machine for aviation rubber sealing rings, belonging to the technical field of sealing ring production. Background Art

[0002] Existing rubber seal ring trimming machines are used for rubber products such as automobile and water pipe seals. Due to their insufficient production precision, they can only meet the trimming needs of non-aviation rubber seal rings. Currently, aviation rubber seal rings are still trimmed manually, which is inefficient. Summary of the Invention

[0003] In order to solve the problems existing in the background technology, the present invention provides an automatic trimming machine for aviation rubber sealing rings.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an automatic trimming machine for aviation rubber sealing ring, comprising a base, a support shaft, a nut, a small grinding head, a fixing plate, a nylon driven wheel, a foot pneumatic switch and a pneumatic drill; the upper end of the base is plugged and fixed with the horizontally arranged support shaft, the outer side of the front end of the support shaft is rotatably sleeved with a nylon driven wheel through a centripetal ball bearing, the outer wall of the nylon driven wheel is provided with a slot, the rubber sealing ring to be repaired is placed in the slot, the outer side of the support shaft is further provided with a nut, the nut is threadedly fastened to the support shaft, and the nut is used to fix the inner ring of the centripetal ball bearing, the upper end of the base is fixedly connected to the fixing plate, the lower end of the fixing plate is provided with a mounting groove, a pneumatic drill is placed in the mounting groove, the use end of the pneumatic drill is connected to the small grinding head, the small grinding head is arranged in alignment with the parting line of the rubber sealing ring to be repaired, the hose at the rear end of the pneumatic drill is connected to the hose of the foot pneumatic switch through a connector, and the foot pneumatic switch is connected to the air compressor.

[0005] Compared with the prior art, the present invention has the following beneficial effects:

[0006] The present invention has a simple structure, low cost, and is easy to operate. It can automatically repair burrs on aviation rubber sealing rings after vulcanization is complete, meeting the trimming requirements of aviation rubber sealing rings. It uses a mechanical mechanism instead of manual operation to complete the trimming of the sealing rings, thereby improving the qualified rate of aviation sealing ring production, increasing production efficiency, and reducing labor. Furthermore, the position of the air drill and / or nylon driven wheel can be adjusted according to the cross-sectional dimensions of different sealing rings, making it flexible and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of the present invention;

[0008] Figure 2 yes Figure 1 A side view of the device excluding the pneumatic switch for the foot;

[0009] Figure 3 yes Figure 2 The main view;

[0010] Figure 4 yes Figure 2 A top view of

[0011] Figure 5 yes Figure 4 AA cross-sectional view. DETAILED DESCRIPTION

[0012] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0013] Example 1:

[0014] An automatic trimming machine for aviation rubber sealing rings includes a base 1, a support shaft 2, a nut 3, a small grinding head 5, a fixing plate 14, a nylon driven wheel 15, a foot-operated pneumatic switch 22, and a pneumatic drill 24; the base 1 is fixedly connected to the working position of a workbench by a screw 9, and the upper end of the base 1 is plugged and fixed to the horizontally arranged support shaft 2. Specifically, a horizontal square socket is provided at the upper end of the base 1, and an external thread is provided at the rear end of the support shaft 2. After the support shaft 2 is inserted into the socket, it is threadably fastened to the base 1 by a nut 8, which facilitates large-scale adjustment. The outer side of the front end of the support shaft 2 is rotatably fitted with a nylon driven wheel 15 through a radial ball bearing 11. The outer wall of the nylon driven wheel 15 is provided with a groove along its circumference, and a rubber sealing ring to be repaired is placed in the groove. The outer side of the support shaft 2 is also fitted with a nut 3, which is threadedly fastened to the support shaft 2, and the nut 3 is used to fix the inner ring of the radial ball bearing 11 to ensure the stable rotation of the nylon driven wheel 15. The upper end of the base 1 is fixedly connected to the fixed plate 14 by screw three 18. The lower end of the fixed plate 14 is provided with a mounting groove, and a pneumatic drill 24 is placed in the mounting groove. The use end of the pneumatic drill 24 is connected to the small grinding head 5 through the drill chuck 6. The small grinding head 5 is arranged to fit the parting line of the rubber sealing ring to be repaired. After the pneumatic drill 24 rotates, the small grinding head 5 rubs against the parting line of the rubber sealing ring to achieve the effect of trimming the sealing ring; the hose 20 at the rear end of the pneumatic drill 24 is connected to the hose 20 of the foot pneumatic switch 22 through a connector 23, and the foot pneumatic switch 22 is connected to the air compressor.

[0015] The output end of the foot pneumatic switch 22 is provided with a regulating valve 21 , which is connected to the hose 20 of the foot pneumatic switch 22 , and the regulating valve 21 has the function of regulating the rotation speed.

[0016] A spring washer 4 is provided between the inner ring of the radial ball bearing 11 and the nut 3 to prevent the nut 3 from loosening.

[0017] Example 2:

[0018] The difference between this embodiment and embodiment 1 is that:

[0019] A pneumatic drill height adjustment mechanism is provided between the pneumatic drill 24 and the base 1 to accommodate various trimming requirements. The pneumatic drill height adjustment mechanism comprises screw 2 (7), an adjustment plate 16, an adjustment bolt 17, and a spring 25. Screw 2 (7) is slidably inserted into each of the four corners of the adjustment plate 16. A spring 25 is fitted around the outer edge of the screw 2 (7), and the lower end of the screw 2 (7) is threadedly connected to the upper end of the base 1. The two ends of the spring 25 rest against the base 1 and the adjustment plate 16, respectively, providing positioning. An adjustment bolt 17 is interposed in a gap on the adjustment plate 16, threadedly connected to the upper end of the base 1. The upper end of the adjustment plate 16 is fixedly connected to the fixed plate 14 via screw 3 (18). The lower end of the fixed plate 14 is provided with a mounting slot, within which the pneumatic drill 24 is restrained. Turning the adjustment bolt 17 fine-tunes the adjustment plate 16 up or down, thereby fine-tuning the operating height of the air gun 24.

[0020] The upper end of the base 1 is provided with a placement hole, in which a limit bolt 13 is installed. The lower end of the limit bolt 13 is threadedly connected to the support shaft 2. By rotating the limit bolt 13, the support shaft 2 can be fine-tuned in height. This works together with the height adjustment mechanism of the air drill to prevent the small grinding head 5 from wearing out the rubber sealing ring, thereby achieving the best trimming effect. The side wall of the base 1 is provided with a top screw hole, in which a top screw 10 is installed. The top screw 10 is arranged in conjunction with the support shaft 2 to ensure concentric and smooth rotation of the nylon driven pulley 15.

[0021] A gasket 12 is provided between the limiting bolt 13 and the base 1 , and the gasket 12 prevents the limiting bolt 13 from loosening while protecting the limiting bolt 13 and the base 1 .

[0022] During operation, the machine is placed on a workbench, and the aviation rubber sealing ring is placed in the slot of the nylon driven wheel 15 so that the parting line of the sealing ring contacts the small grinding head 5. The nylon driven wheel 15 is rotated, and the air pressure of the air compressor drives the air gun 24 to rotate, and then drives the small grinding head 5 to rotate through the drill chuck 6; the foot-operated pneumatic switch 22 can control the action of the pneumatic system at any time, and the hands and feet can be used together, which is convenient and fast, and the next product can be quickly switched.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0024] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic trimming machine for aviation rubber sealing rings, characterized by: The invention comprises a base (1), a support shaft (2), a nut (3), a small grinding head (5), a fixing plate (14), a nylon driven wheel (15), a foot-operated pneumatic switch (22) and a pneumatic drill (24); the upper end of the base (1) is plugged and fixed to the horizontally arranged support shaft (2); the outer side of the front end of the support shaft (2) is rotatably fitted with a nylon driven wheel (15) through a centripetal ball bearing (11); the outer wall of the nylon driven wheel (15) is provided with a slot, and a rubber sealing ring to be repaired is placed in the slot; the outer side of the support shaft (2) is also fitted with a nut (3), and the nut (3) is fixed to the support shaft (2) The support shaft (2) is threadedly fastened, and a nut (3) is used to fix the inner ring of the centripetal ball bearing (11). The upper end of the base (1) is fixedly connected to the fixed plate (14). The lower end of the fixed plate (14) is provided with a mounting groove. A pneumatic drill (24) is placed in the mounting groove. The use end of the pneumatic drill (24) is connected to the small grinding head (5). The small grinding head (5) is arranged to fit the parting line of the rubber sealing ring to be repaired. The rubber hose (20) at the rear end of the pneumatic drill (24) is connected to the rubber hose (20) of the foot pneumatic switch (22) through a connector (23). The foot pneumatic switch ( 22) is connected to the air compressor; an air drill height adjustment mechanism is provided between the air drill (24) and the base (1), and the air drill height adjustment mechanism includes screw 2 (7), an adjustment plate (16), an adjustment bolt (17) and a spring (25); the four corners of the adjustment plate (16) are all slidably plugged with screw 2 (7), the outer side of the screw 2 (7) is covered with a spring (25) and the lower end of the screw 2 (7) is threadedly connected to the upper end of the base (1), the two ends of the spring (25) are respectively against the base (1) and the adjustment plate (16), and the gap on the adjustment plate (16) is plugged with an adjustment bolt (25). The joint bolt (17) is threadedly connected to the upper end of the base (1), the upper end of the adjusting plate (16) is fixedly connected to the fixed plate (14), the lower end of the fixed plate (14) is provided with a mounting groove, and a pneumatic drill (24) is placed in the mounting groove; the upper end of the base (1) is provided with a placement hole, and a limiting bolt (13) is provided in the placement hole, and the lower end of the limiting bolt (13) is threadedly connected to the support shaft (2), and the side wall of the base (1) is provided with a top screw hole, and a top screw (10) is provided in the top screw hole, and the top screw (10) is matched with the support shaft (2).

2. The automatic trimming machine for aviation rubber sealing ring according to claim 1, characterized in that: The output end of the foot pneumatic switch (22) is provided with a regulating valve (21), and the regulating valve (21) is connected to the rubber hose (20) of the foot pneumatic switch (22).

3. The automatic trimming machine for aviation rubber sealing ring according to claim 1 or 2, characterized in that: A spring washer (4) is provided between the inner ring of the radial ball bearing (11) and the nut (3).

4. The automatic trimming machine for aviation rubber sealing ring according to claim 3, characterized in that: A gasket (12) is provided between the limiting bolt (13) and the base (1).

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