Air valve extrusion tool

Abstract

The utility model relates to an air valve extrusion tool which comprises an extrusion device, an extrusion device, a feeding device and a discharging device. The outer side of the fixed seat is clamped with the extrusion equipment, and a first hole is formed in the first end and corresponds to the discharge port; the clamping block is embedded into the first hole, is clamped and fixed between the discharge hole and the fixed seat, and is provided with a third hole which is formed in a penetrating manner; the air valve sequentially penetrates through the third hole and the fixing seat, the second end of the air valve is exposed out of the fixing seat, and the air valve is clamped and fixed between the discharging port and the clamping block and comprises a middle hole formed in the first end of the air valve and communicated with the discharging port; the first side hole is formed in the side face of the air valve and communicated with the middle hole. The spraying hole is formed in the outer side of the second end of the air valve and communicates with the middle hole; wherein the inner wall of the third hole seals the first side hole, the extrusion equipment pumps grinding materials to the middle hole through the discharging port, the grinding materials grind the interior of the air valve, the purpose of removing burrs of the spraying hole is achieved, and meanwhile due to the fact that the first side hole is sealed, the pressure is stable during extrusion, and the flow coefficient is high.

Description

Technical Field

[0001] The utility model relates to the technical field of air valves, in particular to an air valve extrusion tooling. Background Art

[0002] The air valve is mainly used for injecting diesel oil in a dual-fuel oil-gas nozzle. A middle hole is opened at the first end of the air valve, a first side hole and a second side hole are opened on the side surface, and spray holes are annularly opened on the outer side of the second end. The first side hole and the second side hole are both communicated with the middle hole. There are a lot of burrs in the holes after the spray holes are processed. Since the flow rate of the spray holes is very large, the spray flow rate dispersion of the spray holes cannot meet the requirements. Therefore, it is necessary to design a tooling that can fix the air valve on the abrasive flow extrusion and grinding equipment, and can ensure that the liquid particle grinding abrasive like putty can be extruded through the middle hole and the spray holes of the air valve to achieve the purpose of removing the burrs of the spray holes.

[0003] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0004] In view of the deficiencies of the prior art, the embodiment of the utility model discloses an air valve extrusion tooling to meet the above-mentioned requirements for abrasive extrusion of the air valve spray holes.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An air valve extrusion tooling, the air valve extrusion tooling includes: an extrusion device with a discharge port; a fixed seat, the outer side of which is clamped with the extrusion device, and a first hole is opened at the first end, and the position of the first hole corresponds to the discharge port; a clamping block, embedded in the first hole, clamped and fixed between the discharge port and the fixed seat, and having a third hole penetratingly opened; an air valve, sequentially passing through the third hole and the fixed seat and the second end exposed outside the fixed seat, clamped and fixed between the discharge port and the clamping block, including: a middle hole, opened at the first end of the air valve, communicating with the discharge port; a first side hole, opened on the side surface of the air valve, communicating with the middle hole; a spray hole, opened on the outer side of the second end of the air valve, communicating with the middle hole; wherein, the inner wall of the third hole closes the first side hole, and the extrusion device pumps abrasive through the discharge port into the middle hole.

[0007] A further technical solution thereof is that the clamping block includes: a fourth hole, opened at the first end of the clamping block; the air valve includes: an outer edge, arranged outside the first end of the air valve, clamped and fixed between the fourth hole and the discharge port.

[0008] A further technical solution thereof is that a fifth hole is opened at the second end of the clamping block.

[0009] A further technical solution thereof is that the air valve includes: a second side hole opened on the side surface of the air valve, with both ends communicating with the fifth hole and the middle hole respectively; the air valve extrusion tooling includes: a sealing ring disposed in the fifth hole, sleeved outside the air valve, and in interference fit with the fifth hole.

[0010] A further technical solution thereof is that the inner side and the outer side of the first end of the sealing ring have extension parts, and a groove formed between the two extension parts communicates with the second side hole.

[0011] A further technical solution thereof is that the clamping block, the fixed seat and the air valve are coaxially arranged.

[0012] A further technical solution thereof is that a notch is opened on the side surface of the fixed seat.

[0013] A further technical solution thereof is that a through second hole is opened at the second end of the fixed seat, the second hole communicates with the first hole, and the air valve passes through the second hole.

[0014] The beneficial effects of the embodiments of the present utility model are as follows:

[0015] (1) The air valve extrusion tooling of the present utility model includes an extrusion device, a fixed seat, a clamping block and an air valve. After the fixed seat is clamped with the extrusion device, the clamping block is embedded into the first hole and clamped and fixed between the discharge port and the fixed seat, restricting the circumferential movement and axial movement of the clamping block. A sealing surface is formed between the first end of the clamping block and the discharge port and between the second end of the clamping block and the fixed seat. The air valve passes through the third hole and the fixed seat in sequence and is clamped and fixed between the discharge port and the clamping block, restricting the circumferential movement and axial movement of the air valve. The inner wall of the third hole of the clamping block closes the first side hole of the air valve. The extrusion device extrudes abrasive materials to pass through the discharge port, the middle hole and the spray hole in sequence, and the abrasive materials grind the inside of the air valve to achieve the purpose of removing burrs of the spray hole. At the same time, since the first side hole is closed, the pressure is stable during extrusion and the flow coefficient is high.

[0016] (2) Further, a fifth hole is opened at the second end of the clamping block, a second side hole is opened on the side surface of the air valve, a sealing ring is arranged in the fifth hole, the sealing ring is in interference fit with the fifth hole, the inner side and the outer side of the first end of the sealing ring have extension parts, and a groove formed between the two extension parts communicates with the second side hole. The abrasive materials enter the groove through the second side hole, and the extrusion pressure on the groove is converted into the sealing force between the outer side of the sealing ring and the inner wall of the fifth hole, between the inner side of the sealing ring and the outer surface of the air valve, and between the second end of the sealing ring and the bottom of the first hole, improving the sealing effect of the extrusion tooling. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the air valve extrusion tooling of the present utility model.

[0018] Figure 2This is a schematic structural view of the fixed seat in the air valve extrusion tooling of the present utility model.

[0019] Figure 3 This is a schematic structural view of the clamping block in the air valve extrusion tooling of the present utility model.

[0020] Figure 4 This is a schematic structural view of the air valve in the air valve extrusion tooling of the present utility model.

[0021] In the figure:

[0022] 1. Fixed seat; 11. First hole; 12. Second hole; 13. Notch; 2. Clamping block; 21. Third hole; 22. Fourth hole; 23. Fifth hole; 3. Air valve; 31. Middle hole; 32. First side hole; 33. Second side hole; 34. Spray hole; 35. Outer edge; 4. Sealing ring; 41. Extension part. Specific embodiments

[0023] The following combines with the attached drawings to illustrate the specific embodiments of the present utility model.

[0024] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the device proposed by the present utility model in combination with the attached drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the attached drawings adopt a very simplified form and all use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present utility model. In order to make the purpose, features and advantages of the present utility model more obvious and easy to understand, please refer to the attached drawings. It should be known that the structures, scales, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present utility model.

[0025] Embodiment:

[0026] This embodiment discloses an air valve extrusion tooling.

[0027] The air valve extrusion tooling includes an extrusion device (not shown in the figure), a fixed seat 1, a clamping block 2 and an air valve 3.

[0028] The extrusion device has a discharge port (not shown in the figure). Exemplarily, the extrusion device uses a commercially available abrasive flow extrusion machine. The extrusion device pumps abrasive to the middle hole 31 through the discharge port, and the extrusion pressure is 10 Mpa.

[0029] The outer side of the fixed seat 1 is clamped with the extrusion equipment. A first hole 11 is opened at the first end, and the position of the first hole 11 corresponds to the discharge port. Exemplarily, a notch 13 is opened on the side surface of the fixed seat 1, and the extrusion equipment has a buckle portion that cooperates with the notch 13 to realize the connection between the fixed seat 1 and the extrusion equipment. The first hole 11 is opened in the middle of the first end of the fixed seat 1. A through second hole 12 is opened in the middle of the second end of the fixed seat 1, and the air supply valve 3 passes through the second hole 12.

[0030] The clamping block 2 is embedded in the first hole 11 and is clamped and fixed between the discharge port and the fixed seat 1. A third hole 21 is opened through it. Exemplarily, the clamping block 2 and the first hole 11 are in a shape fit, both being cylindrical. After clamping and fixing, the side wall and the second end of the clamping block 2 form a sealing surface with the inner side wall and the bottom surface of the first hole 11. The third hole 21 is opened in the middle of the clamping block 2.

[0031] The air valve 3 sequentially passes through the third hole 21 and the fixed seat 1 and the second end is exposed outside the fixed seat 1. It is clamped and fixed between the discharge port and the clamping block 2, and includes a middle hole 31, a first side hole 32, and a spray hole 34. The middle hole 31 is opened at the first end of the air valve 3 and communicates with the discharge port. The first side hole 32 is annularly opened on the side surface of the air valve 3 and communicates with the middle hole 31. The spray hole 34 is opened on the outer side of the second end of the air valve 3 and communicates with the middle hole 31. Exemplarily, the clamping block 2 includes a fourth hole 22, and the fourth hole 22 is opened in the middle of the first end of the clamping block 2. The air valve 3 includes an outer edge 35, and the outer edge 35 is arranged on the outer side of the first end of the air valve 3. After the outer side of the fixed seat 1 is clamped with the extrusion equipment, the outer edge 35 is clamped and fixed between the fourth hole 22 and the discharge port, and the second end of the outer edge 35 forms a sealing surface with the bottom of the fourth hole 22. After the air valve 3 passes through the third hole 21, the inner wall of the third hole 21 closes the first side hole 32.

[0032] Further, a fifth hole 23 is formed at the second end of the clamping block 2. The air valve 3 includes a second side hole 33 which is formed on the side surface of the air valve 3 and communicates with the fifth hole 23 and the middle hole 31 at both ends. The air valve extrusion tooling includes a sealing ring 4 which is arranged in the fifth hole 23, sleeved outside the air valve 3 and is in interference fit with the fifth hole 23. Exemplarily, the fifth hole 23 is formed in the middle of the second end of the clamping block 2, and the second side hole 33 is annularly formed outside the air valve 3 and is located at the lower end of the first side hole 32. After the clamping block 2 is clamped and fixed between the discharge port and the fixed seat 1, sealing surfaces are formed between the outer side of the sealing ring 4 and the inner wall of the fifth hole 23, between the inner side of the sealing ring 4 and the outer surface of the air valve 3, and between the second end of the sealing ring 4 and the bottom of the first hole 11. Preferably, the inner side and the outer side of the first end of the sealing ring 4 have extension parts 41, and a groove formed between the two extension parts 41 communicates with the second side hole 33. When abrasive enters the middle hole 31, the abrasive enters the groove through the second side hole 33, and the extrusion pressure on the groove is converted into the sealing force between the outer side of the sealing ring 4 and the inner wall of the fifth hole 23, between the inner side of the sealing ring 4 and the outer surface of the air valve 3, and between the second end of the sealing ring 4 and the bottom of the first hole 11, improving the sealing effect of the extrusion tooling.

[0033] Further, the discharge port, the clamping block 2, the fixed seat 1 and the air valve 3 are coaxially arranged, which is convenient for production and processing and for aligning between components.

[0034] In this embodiment, after the fixed seat 1 is clamped with the extrusion device, the clamping block 2 is clamped and fixed between the discharge port and the fixed seat 1, restricting the circumferential movement and axial movement of the clamping block 2. Sealing surfaces are formed between the first end of the clamping block 2 and the discharge port and between the second end of the clamping block 2 and the fixed seat 1. The air valve 3 is clamped and fixed between the discharge port and the clamping block 2, restricting the circumferential movement and axial movement of the air valve 3. The inner wall of the third hole 21 of the clamping block 2 closes the first side hole 32 of the air valve 3. The extrusion device extrudes abrasive to pass through the discharge port, the middle hole 31 and the spray hole 34 in sequence. The abrasive grinds the inside of the air valve 3 to achieve the purpose of removing burrs from the spray hole 34. At the same time, since the first side hole 32 is closed, the pressure is stable during extrusion and the flow coefficient is high.

[0035] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0036] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. Valve extrusion tooling, characterized in that: The air valve extrusion tooling comprises: An extrusion device having a discharge port; A fixing seat, the outer side of which is clamped with the extrusion device, and a first hole is formed at the first end, and the position of the first hole corresponds to the discharge port; A clamping block, embedded in the first hole, clamped and fixed between the discharge port and the fixing seat, and having a third hole extending therethrough; The air valve passes through the third hole and the fixing seat in sequence and the second end is exposed from the fixing seat, and is clamped and fixed between the discharge port and the clamping block, comprising: A middle hole, which is provided at the first end of the gas valve and is connected to the discharge port; A first side hole, opened on a side of the air valve and connected to the middle hole; A spray hole is provided on the outer side of the second end of the air valve and is connected to the middle hole; The inner wall of the third hole closes the first side hole, and the extrusion device pumps abrasive to the middle hole through the discharge port.

2. The valve extrusion tooling according to claim 1, characterized in that: The clamping block comprises: a fourth hole, formed at the first end of the clamping block; The gas valve comprises: The outer edge is arranged on the outer side of the first end of the air valve and is clamped and fixed between the fourth hole and the discharge port.

3. The valve extrusion tooling according to claim 2, characterized in that: The second end of the clamping block defines a fifth hole.

4. The valve extrusion tooling according to claim 3, characterized in that: The gas valve comprises: A second side hole is provided on the side of the air valve, and two ends thereof are respectively connected to the fifth hole and the middle hole; The air valve extrusion tooling comprises: The sealing ring is arranged in the fifth hole, sleeved on the outer side of the air valve, and has an interference fit with the fifth hole.

5. The valve extrusion tooling according to claim 4, characterized in that: The inner side and the outer side of the first end of the sealing ring are provided with extension parts, and the groove formed between the two extension parts is communicated with the second side hole.

6. The valve extrusion tooling according to claim 1, characterized in that: The clamping block, the fixing seat and the air valve are coaxially arranged.

7. The valve extrusion tooling according to claim 1, characterized in that: A notch is provided on the side surface of the fixing seat.

8. The valve extrusion tooling according to claim 1, characterized in that: A second hole is formed at the second end of the fixing seat, the second hole is connected to the first hole, and the air valve passes through the second hole.

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