CN218874394U - Engine cup type packing ring processing frock - Google Patents

Abstract

The utility model provides an engine cup type packing ring processing frock. The machining tool for the cup-shaped gasket of the engine comprises a linear cutting tool, a fitter tool and a milling tool; the wire cutting tool is configured to fix the cup-shaped gasket prefabricated member in a wire cutting machining process so as to cut the inner shape of the cup-shaped gasket prefabricated member, the cut inner shape comprises a part to be bent, and the cup-shaped gasket prefabricated member forms a cup-shaped gasket semi-finished product I after the wire cutting machining process; the bench worker tool is configured to bend the part to be bent in the bench worker machining process to form a bent part, and the cup-shaped gasket semi-finished product is formed into a cup-shaped gasket semi-finished product II after the bench worker machining process; and the milling tool is configured to clamp the cup-shaped gasket semi-finished product II in the milling process so as to process a square groove for the cup-shaped gasket semi-finished product II, and the cup-shaped gasket semi-finished product II forms a cup-shaped gasket finished product after the milling process. This engine cup type packing ring processing frock can greatly improve the production efficiency of cup type packing ring.

Description

Engine cup type packing ring processing frock

Technical Field

The utility model relates to an engine parts machine-shaping technical field, more specifically, the utility model relates to an engine cup type packing ring processing frock. The utility model discloses still relate to an engine cup type packing ring.

Background

The engine gasket is one of essential parts of an engine, and engine gaskets with different shapes and specifications are required to be used at different positions of the engine. The cup-shaped gasket is a special-shaped piece required to be used in an aircraft engine, the traditional machining method is difficult to machine the special-shaped gasket, and the manufacturing of a die is time-consuming and labor-consuming.

Therefore, how to provide a tool for conveniently processing an engine cup-shaped gasket is an urgent problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an engine cup shape packing ring processing frock, this frock includes wire-electrode cutting frock, pincers worker frock and mills worker's frock, processes in order to form engine cup shape packing ring through wire-electrode cutting, pincers worker and the mill worker to the cup shape packing ring prefab that easily produces through the lathe respectively, has greatly improved the production efficiency of part.

The utility model provides an engine cup type packing ring processing frock, include: a linear cutting tool, a bench worker tool and a milling worker tool; the wire cutting tool is configured to fix the cup-shaped gasket prefabricated member through the through hole in the wire cutting machining process so as to cut an inner shape of the cup-shaped gasket prefabricated member, the cut inner shape comprises a part to be bent, and the cup-shaped gasket prefabricated member forms a cup-shaped gasket semi-finished product I after the wire cutting machining process; the bench worker tool comprises a pressure bearing part for placing the cup-shaped gasket semi-finished product I and a pressure applying part for pressing the cup-shaped gasket semi-finished product I downwards, the bench worker tool is configured to bend a part to be bent in the bench worker machining process to form a bent part, and the cup-shaped gasket semi-finished product is subjected to the bench worker machining process to form a cup-shaped gasket semi-finished product II; the milling tool comprises a milling tool base plate for placing the cup-shaped gasket semi-finished product II and a milling tool pressing plate for pressing the cup-shaped gasket semi-finished product II, wherein grooves for a milling cutter to pass through are formed in the milling tool base plate and the milling tool pressing plate, the milling tool is configured to clamp the cup-shaped gasket semi-finished product II in the milling process so that the groove can be used for machining a square groove for the cup-shaped gasket semi-finished product II, and the cup-shaped gasket semi-finished product II forms a cup-shaped gasket finished product after the milling process.

Optionally, the cup-washer preform is in the shape of a bottle cap; the wire cutting tool is cylindrical, two sections of through holes with different diameters are axially formed in the wire cutting tool, wherein the inner diameter of the through hole with the larger diameter is consistent with the outer diameter of the cup-shaped gasket prefabricated member and is used for accommodating the cup-shaped gasket prefabricated member, and the through hole with the smaller diameter is used for preventing the cup-shaped gasket prefabricated member from sliding out of the wire cutting tool; in the process of online cutting machining, the cup-shaped gasket prefabricated part is fixed in a through hole with a larger diameter of the online cutting tool, and the wire electrode for linear cutting penetrates through the center of the cup-shaped gasket prefabricated part and cuts the inner shape of the cup-shaped gasket prefabricated part; the pressure-bearing part of the bench worker tool comprises a bench worker tool bottom plate, a mandrel, an elastic gasket and a supporting plate, and the pressure-applying part of the bench worker tool comprises a bench worker tool upper pressure plate; the bench worker tool bottom plate is cylindrical; the mandrel is fixedly connected to the bench worker tool bottom plate, the lower part of the mandrel, close to the bench worker tool bottom plate, of the mandrel is provided with a circular racket-shaped section with a lower rectangular connection part, and the upper part of the mandrel, far away from the bench worker tool bottom plate, of the mandrel is provided with a groove for dividing the racket-shaped section; the elastic gasket and the supporting plate are cylindrical and are provided with through holes with the shapes consistent with the shapes of the racket-shaped sections, and the elastic gasket and the supporting plate are sleeved on the periphery of the lower part of the mandrel; the upper pressing plate of the bench worker tool is cylindrical and is provided with a through hole with the shape consistent with that of the section of the racket, and the upper pressing plate of the bench worker tool is sleeved on the periphery of the upper part of the mandrel; during the processing process of a bench worker, the cup-shaped gasket semi-finished product I is buckled on the supporting plate, the part to be bent is inserted into the groove at the upper part of the mandrel, and the bench worker installs the upper pressure plate to press the cup-shaped gasket semi-finished product downwards so that the part to be bent is blocked by the lower part of the mandrel and is bent to form a bent part; the milling tool base plate is cylindrical and is provided with a through hole with the shape consistent with that of the section of the racket, and one end of the milling tool base plate is provided with a groove which penetrates through the end face of the milling tool base plate and is circular in the middle; the milling tool pressing plate is cylindrical, and one end of the milling tool pressing plate is provided with a groove penetrating through the end face of the milling tool pressing plate; in the milling process, the cup-shaped gasket semi-finished product II is clamped between the milling tool base plate and the milling tool pressing plate, the bent part is inserted into the through hole of the milling tool base plate, and the milling cutter moves along the groove of the milling tool base plate and the groove of the milling tool pressing plate and processes a square groove for the cup-shaped gasket semi-finished product II.

Optionally, the length of the through hole with the larger diameter in the two sections of through holes with different diameters of the wire cutting tool is longer.

Optionally, the larger diameter through hole of the wire cutting tool may accommodate at least 6 cup-shaped gasket preforms.

Alternatively, the cup-shaped gasket preform is formed by lathing.

Optionally, a positioning block for sliding into a groove in the upper part of the mandrel is further arranged in the through hole of the upper pressing plate of the bench worker tool.

Optionally, the locating block is arranged at the upper end of the through hole of the upper pressing plate of the bench worker tool.

Optionally, the positioning block penetrates through two ends of a through hole of the upper pressing plate of the bench worker tool, and a jack matched with the positioning block is formed in the lower portion of the mandrel.

Optionally, the elastic gasket is selected from one or more of a natural rubber gasket, a styrene-butadiene rubber gasket, a nitrile-butadiene rubber gasket, an isoprene rubber gasket and a silicon rubber gasket.

The utility model also provides an engine cup shape packing ring, this engine cup shape packing ring is processed through above-mentioned engine cup shape packing ring processing frock and is formed.

The utility model provides an engine cup type packing ring processing frock includes the wire-electrode cutting frock, pincers worker frock and mills worker's frock, through with the processing dispersion of engine cup type packing ring to in a plurality of processing steps and design corresponding processing frock for the technical staff can be through machining method batch production engine cup type packing ring, and then has greatly promoted part production efficiency. Furthermore, the utility model provides an engine cup type packing ring processing frock still includes location design such as locating piece, and the part is fixed a position fast to the convenience is carrying out the machine tooling man-hour to machining efficiency and machining precision have further been improved.

Drawings

In order to explain the technical solution of the present invention more clearly, embodiments of the present invention will be further illustrated and described according to the following drawings, which are only used for more convenient and specific description of embodiments of the present invention and are not intended to limit the present invention.

FIG. 1 is a schematic view of a cup washer preform provided in accordance with a preferred embodiment of the present invention;

fig. 2 is a schematic three-dimensional structure diagram of a wire cutting tool according to a preferred embodiment of the present invention;

fig. 3 is a front view and a schematic cross-sectional view of a two-dimensional structure of a wire cutting tool provided according to a preferred embodiment of the present invention;

fig. 4 is a schematic view of a cup-shaped gasket semi-finished product one according to a preferred embodiment of the present invention;

fig. 5 is a schematic three-dimensional structure diagram of a fitter tool according to a preferred embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of a two-dimensional structure of a fitter tool provided according to a preferred embodiment of the present invention;

fig. 7 is a schematic view of a second cup-shaped gasket semi-finished product according to a preferred embodiment of the present invention;

fig. 8 is a schematic three-dimensional structure diagram of a miller tool according to a preferred embodiment of the present invention;

fig. 9 is a front view and a schematic cross-sectional view of a two-dimensional structure of a bottom plate of a miller tool provided in accordance with a preferred embodiment of the present invention;

FIG. 10 is a schematic view of a two-dimensional structural front view and cross-sectional illustration of a mill tool platen provided in accordance with a preferred embodiment of the present invention; and

fig. 11 is a schematic view of a finished cup-shaped gasket provided in accordance with a preferred embodiment of the present invention.

In the figure: 1 is a linear cutting tool, 2 is a fitter tool, and 3 is a miller tool; 21 is a bench worker tool bottom plate, 22 is a mandrel, 23 is an elastic gasket, 24 is a supporting plate, 25 is a bench worker tool upper pressure plate, 31 is a milling worker tool bottom plate, and 32 is a milling worker tool pressure plate; 41 is a cup-shaped gasket prefabricated part, 42 is a cup-shaped gasket semi-finished product I, 43 is a cup-shaped gasket semi-finished product II, and 44 is a cup-shaped gasket finished product.

Detailed Description

The utility model provides an engine cup-shaped gasket processing tool, which comprises a linear cutting tool 1, a fitter tool 2 and a miller tool 3; the wire cutting tool 1 is configured to fix the cup-shaped gasket prefabricated member 41 through the through hole in the wire cutting machining process so as to cut an inner shape of the cup-shaped gasket prefabricated member 41, the cut inner shape comprises a part to be bent, and the cup-shaped gasket prefabricated member 41 forms a cup-shaped gasket semi-finished product I42 after the wire cutting machining process; the bench worker tool 2 comprises a pressure bearing part for placing the cup-shaped gasket semi-finished product I42 and a pressure applying part for pressing the cup-shaped gasket semi-finished product I42 downwards, the bench worker tool 2 is configured to bend a part to be bent in the bench worker machining process to form a bent part, and the cup-shaped gasket semi-finished product I42 forms a cup-shaped gasket semi-finished product II 43 after the bench worker machining process; the milling tool 3 comprises a milling tool bottom plate 31 used for placing the second cup-shaped gasket semi-finished product 43 and a milling tool pressing plate 32 used for pressing the second cup-shaped gasket semi-finished product 43, grooves for allowing milling cutters to pass through are formed in the milling tool bottom plate 31 and the milling tool pressing plate 32, the milling tool 3 is configured to clamp the second cup-shaped gasket semi-finished product 43 in the milling process so that a square groove can be machined for the second cup-shaped gasket semi-finished product 43 through the grooves, and the second cup-shaped gasket semi-finished product 43 forms a cup-shaped gasket finished product 44 after the milling process. The operator can use the tools to respectively and gradually process the cup-shaped gasket prefabricated member 41 to form the finished product 44 of the engine cup-shaped gasket, so that the production efficiency of parts is improved. Referring to fig. 1, fig. 1 is a schematic view of a cup gasket preform provided in accordance with a preferred embodiment of the present invention. As shown in fig. 1, the cup-shaped gasket preform 41 is in the shape of a bottle cap, and a wire passing hole for passing a wire electrode for wire cutting is formed in the center thereof. In a preferred embodiment of the present invention, the cup-shaped gasket preform 41 can be formed by lathe machining, and since the cup-shaped gasket preform 41 provided by the present invention has a simple structure, the cup-shaped gasket preform 41 can be quickly and efficiently produced by lathe machining, and then machined into the engine cup-shaped gasket finished product 44 by other steps.

In a preferred embodiment of the present invention, the structure of the wire-electrode cutting tool 1 can refer to fig. 2 and 3, and fig. 2 and 3 are a schematic three-dimensional structure diagram and a schematic two-dimensional structure front view and a schematic cross-sectional view of the wire-electrode cutting tool provided by a preferred embodiment of the present invention, respectively. As shown in fig. 2 and 3, the wire cutting tool 1 is cylindrical, and two sections of through holes with different diameters are axially formed in the wire cutting tool 1. In the wire cutting process, the wire cutting tool 1 is used as a clamp for the cup-shaped gasket preform 41, the diameter of the through hole with the larger diameter in the two sections of through holes is consistent with the outer diameter of the cup-shaped gasket preform 41 and is used for accommodating one or more cup-shaped gasket preforms 41, and the diameter of the through hole with the smaller diameter in the two sections of through holes is smaller than the outer diameter of the cup-shaped gasket preform 41 and larger than the outer peripheral dimension of the inner shape to be processed in the wire cutting process and is used for preventing the cup-shaped gasket preform 41 from sliding off from the wire cutting tool 1. In a preferred embodiment of the present invention, the length of the through hole with a larger diameter in the two sections of through holes with different diameters of the wire cutting tool 1 is longer, so as to accommodate more cup-shaped gasket preforms 41 for wire cutting. The utility model discloses an in the preferred embodiment, the great through-hole of diameter of wire-electrode cutting frock 1 can hold 6 at least cup type packing ring prefab 41, and in the wire-electrode cutting course of working, same root wire electrode can be used to carry out the wire-electrode cutting to 6 at least cup type packing ring prefabs 41 simultaneously. The shape of the cup-shaped gasket semi-finished product 42 can be referred to fig. 4, and fig. 4 is a schematic view of the cup-shaped gasket semi-finished product 42 according to a preferred embodiment of the present invention. As shown in fig. 4, the cup-shaped gasket semi-finished product one 42 has, at the center thereof, a gap having a racket-like shape similar to a circular lower rectangle, which is blocked by a to-be-bent portion protruding upward from the center of the lower rectangle, which is to be bent into a bent portion in a subsequent bench work process step.

Referring to fig. 5 and 6, fig. 5 and 6 are a schematic diagram of a three-dimensional structure and a schematic diagram of a two-dimensional structure cross section of a bench work tool provided according to a preferred embodiment of the present invention, respectively. As shown in fig. 5 and 6, the pressure-bearing portion of the bench worker tool 2 includes a bench worker tool bottom plate 21, a mandrel 22, an elastic gasket 23 and a support plate 24, and the pressure-applying portion includes a bench worker tool upper pressure plate 25; the bench worker tool bottom plate 21 is cylindrical and is used for bearing the whole bench worker tool 2; the mandrel 22 is fixedly connected to the bench worker tool bottom plate 21, the lower part of the mandrel, close to the bench worker tool bottom plate 21, of the mandrel 22 is provided with a circular racket-shaped cross section of a lower rectangle, the racket-shaped cross section is consistent with the racket-shaped shape of the center of the cup-shaped gasket semi-finished product I42, the upper part of the mandrel 22, far away from the bench worker tool bottom plate 21, of the mandrel 22 is provided with a groove for dividing the racket-shaped cross section, and the groove is used for accommodating a part to be bent, at the center of the cup-shaped gasket semi-finished product I42; the elastic gasket 23 and the supporting plate 24 are cylindrical and are provided with through holes with the same shape as the section of the racket, the elastic gasket 23 and the supporting plate 24 are sleeved on the periphery of the lower part of the mandrel 22, and the diameter of the supporting plate 24 is the same as the diameter of the bottle cap-shaped cup-shaped gasket prefabricated part 41 without the outer edge of the bottle cap, so that the cup-shaped gasket semi-finished product 42 can be just buckled on the supporting plate 24; the bench worker tool upper pressure plate 25 is cylindrical and is provided with a through hole with the same shape as the cross section of the racket, and the bench worker tool upper pressure plate 25 is sleeved on the periphery of the upper part of the mandrel 22. In the process of bench worker processing, a bench worker tool bottom plate 21, a mandrel 22, an elastic gasket 23 and a support plate 24 are assembled in sequence; then buckling the cup-shaped gasket semi-finished product I42 on the support plate 24, wherein the top surface of the support plate 24 is flush with the bottom of the groove formed in the upper part of the mandrel 22, and the part to be bent of the cup-shaped gasket semi-finished product I42 just penetrates through the groove formed in the upper part of the mandrel and is positioned at the bottom of the groove; next, the bench worker presses the bench worker tool upper press plate 25 downward through the mandrel 22 by a tool or manually, so that the cup-shaped gasket semi-finished product 42 moves downward together with the support plate 24 and the elastic gasket 23, and the portion to be bent of the cup-shaped gasket semi-finished product 42 is bent by being blocked by the lower portion of the mandrel, and a cup-shaped gasket semi-finished product 43 is formed, as shown in fig. 7. In a preferred embodiment of the present invention, the elastic pad 23 may be a natural rubber pad, which has good elasticity and resilience. In another preferred embodiment of the present invention, the elastic pad 23 may also be an elastomer pad, such as a styrene butadiene rubber pad, a nitrile butadiene rubber pad, an isoprene rubber pad, a silicone rubber pad, etc., and the physical properties of the elastomer pad are easy to control, and those skilled in the art can select a suitable material as required. The utility model discloses an in the preferred embodiment, still be provided with the locating piece that is used for sliding into the recess on dabber upper portion in the through-hole of pincers worker's frock top board 25, this locating piece setting is in the circular one side of the racket shape through-hole of pincers worker's frock top board 25, is convenient for establish the periphery at dabber 22 with the accurate cover of pincers worker's frock top board 25. In a preferred embodiment of the present invention, the positioning block is disposed at the upper end of the through hole of the upper clamp 25, and the distance from the positioning block to the bottom surface of the upper clamp 25 is not less than the length of the to-be-bent portion of the first cup-shaped gasket semi-finished product 42, so as not to block the downward movement of the upper clamp 25. In another embodiment, the positioning blocks are disposed through two ends of the through hole of the upper clamp tool pressing plate 25, and the lower portion of the core shaft 22 is provided with a jack matched with the positioning blocks, so that the upper clamp tool pressing plate 25 can move downward without being blocked.

Referring to fig. 8, 9 and 10, fig. 8 is a schematic three-dimensional structure diagram of a milling tool provided according to a preferred embodiment of the present invention, fig. 9 is a schematic two-dimensional structure front view and a schematic cross-sectional view of a bottom plate of a milling tool provided according to a preferred embodiment of the present invention, and fig. 10 is a schematic two-dimensional structure front view and a schematic cross-sectional view of a pressing plate of a milling tool provided according to a preferred embodiment of the present invention. As shown in fig. 8, 9 and 10, the milling tool 3 includes a milling tool base plate 31 and a milling tool pressing plate 32; the milling tool bottom plate 31 is cylindrical and is provided with a through hole with the shape consistent with that of the section of the racket shape, and one end of the milling tool bottom plate 31 is also provided with a groove which penetrates through the end face of the milling tool bottom plate 31 and is circular in the middle; the milling tool pressing plate 32 is cylindrical, and a groove penetrating through the end face of the milling tool pressing plate 32 is formed in one end of the milling tool pressing plate 32. In the machining process of a bench worker, the cup-shaped gasket semi-finished product II 43 is placed in a circular groove of the milling tool base plate 31, the bent part is inserted into a through hole of the milling tool base plate 31 for positioning, then the milling tool pressing plate 32 is placed on the cup-shaped gasket semi-finished product II 43, the cup-shaped gasket semi-finished product II 43 is clamped between the milling tool base plate 31 and the milling tool pressing plate 32, the groove of the milling tool pressing plate 32 is aligned with the groove of the milling tool base plate 31, and then the milling cutter can be controlled to move along the groove direction to machine two small square grooves for the cup-shaped gasket semi-finished product II 43, so that a cup-shaped gasket finished product 44 shown in fig. 11 is formed.

The utility model also provides an engine cup type packing ring, this engine cup type packing ring is processed through above-mentioned engine cup type packing ring processing frock and is formed, and this engine cup type packing ring can have as shown in figure 4, figure 7 and the shape of the various processing stages that figure 11 shows.

Numerous specific examples are provided in the embodiments provided herein, it being understood that these examples are for purposes of illustrating the embodiments of the present invention in detail and are not intended to be limiting. Embodiments of the present invention may be practiced without these specific examples. Structures and/or techniques that are well known to those of ordinary skill in the art have not been shown in detail in some embodiments in order not to obscure the understanding of this disclosure.

While preferred embodiments of the present invention have been shown and described herein, it will be readily understood by those skilled in the art that these embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be optionally employed in practicing the invention. It is intended that the scope of the invention be defined by the claims and that structures within the scope of these claims and their equivalents be covered thereby.

Claims (9)

1. The utility model provides an engine cup type packing ring processing frock which characterized in that includes:

the cutting line comprises a linear cutting tool (1), a fitter tool (2) and a milling tool (3);

the wire cutting tool (1) is provided with a through hole for accommodating a cup-shaped gasket prefabricated member (41), the wire cutting tool (1) is configured to fix the cup-shaped gasket prefabricated member (41) through the through hole in a wire cutting process so as to cut an inner shape of the cup-shaped gasket prefabricated member (41), the cut inner shape comprises a part to be bent, and the cup-shaped gasket prefabricated member (41) forms a cup-shaped gasket semi-finished product I (42) after the wire cutting process;

the bench worker tool (2) comprises a pressure bearing part for placing the cup-shaped gasket semi-finished product I (42) and a pressure applying part for pressing the cup-shaped gasket semi-finished product I (42), the bench worker tool (2) is configured to press the part to be bent to form a bent part in the bench worker processing process, and the cup-shaped gasket semi-finished product I (42) forms a cup-shaped gasket semi-finished product II (43) after the bench worker processing process; and

milling worker frock (3) are including being used for placing milling worker frock bottom plate (31) of two (43) cup type packing ring semi-manufactured goods and being used for pushing down the milling worker frock clamp plate (32) of two (43) cup type packing ring semi-manufactured goods, milling worker frock bottom plate (31) with milling worker frock clamp plate (32) are seted up the recess that can supply milling cutter to pass through, milling worker frock (3) are configured to centre gripping in the milling worker course of working two (43) so that pass through the recess does two (43) of cup type packing ring semi-manufactured goods process square groove, two (43) processes of cup type packing ring semi-manufactured goods form cup type packing ring finished product (44) behind the milling worker course of working.

2. The engine cup washer machining tool of claim 1,

the cup-shaped gasket prefabricated part (41) is in a bottle cap shape;

the wire cutting tool (1) is cylindrical, two sections of through holes with different diameters are axially formed in the wire cutting tool (1), wherein the inner diameter of the through hole with the larger diameter is consistent with the outer diameter of the cup-shaped gasket prefabricated part (41) and is used for accommodating the cup-shaped gasket prefabricated part (41), and the through hole with the smaller diameter is used for preventing the cup-shaped gasket prefabricated part (41) from sliding out of the wire cutting tool (1); in the wire cutting process, the cup-shaped gasket prefabricated part (41) is fixed in a through hole with a larger diameter of the wire cutting tool (1), and a wire electrode for wire cutting penetrates through the center of the cup-shaped gasket prefabricated part (41) and cuts the inner shape of the cup-shaped gasket prefabricated part (41);

the pressure-bearing part of the bench worker tool (2) comprises a bench worker tool bottom plate (21), a mandrel (22), an elastic gasket (23) and a supporting plate (24), and the pressure-applying part of the bench worker tool (2) comprises a bench worker tool upper pressure plate (25); the bench worker tool bottom plate (21) is cylindrical; the mandrel (22) is fixedly connected to the bench worker tool bottom plate (21), the lower part of the mandrel (22), which is close to the bench worker tool bottom plate (21), is provided with a circular racket-shaped section with a rectangular lower connection part, and the upper part of the mandrel (22), which is far away from the bench worker tool bottom plate (21), is provided with a groove for cutting the racket-shaped section; the elastic gasket (23) and the support plate (24) are both cylindrical and are provided with through holes with the same shape as the section of the racket, and the elastic gasket (23) and the support plate (24) are sleeved on the periphery of the lower part of the mandrel (22); the bench work tool upper pressure plate (25) is cylindrical and is provided with a through hole with the shape consistent with that of the section of the racket shape, and the bench work tool upper pressure plate (25) is sleeved on the periphery of the upper part of the mandrel (22); in the process of machining by the bench worker, the cup-shaped gasket semi-finished product I (42) is buckled on the supporting plate (24), the part to be bent is inserted into the groove in the upper part of the mandrel, and the bench worker tool upper pressure plate (25) presses the cup-shaped gasket semi-finished product I (42) downwards so that the part to be bent is blocked by the lower part of the mandrel to be bent and bent to form the bent part; and

the milling tool bottom plate (31) is cylindrical and is provided with a through hole with the shape consistent with that of the section of the racket shape, one end of the milling tool bottom plate (31) is provided with a groove which penetrates through the end face of the milling tool bottom plate (31) and is circular in the middle; the milling tool pressing plate (32) is cylindrical, and one end of the milling tool pressing plate (32) is provided with a groove which penetrates through the end face of the milling tool pressing plate (32); in the milling process, the cup-shaped gasket semi-finished product II (43) is clamped between the milling tool base plate (31) and the milling tool pressing plate (32), the bent part is inserted into the through hole of the milling tool base plate (31), and the milling cutter moves along the groove of the milling tool base plate (31) and the groove of the milling tool pressing plate (32) and processes the square groove by the cup-shaped gasket semi-finished product II (43).

3. The engine cup washer machining tool of claim 2,

the length of the through hole with the larger diameter in the two sections of through holes with different diameters of the wire cutting tool (1) is longer.

4. The engine cup washer machining tool of claim 3,

the through hole with the larger diameter of the wire cutting tool (1) can accommodate at least 6 cup-shaped gasket prefabricated parts (41).

5. The engine cup washer machining tool of claim 4,

the cup-shaped gasket preform (41) is formed by lathe machining.

6. The engine cup washer machining tool of claim 2,

and a positioning block which is used for sliding into a groove on the upper part of the mandrel is also arranged in the through hole of the upper pressing plate (25) of the bench worker tool.

7. The engine cup washer machining tool of claim 6,

the positioning block is arranged at the upper end of the through hole of the upper pressing plate (25) of the bench worker tool.

8. The engine cup washer machining tool of claim 6,

the positioning blocks penetrate through two ends of a through hole of the upper pressing plate (25) of the bench worker tool, and the lower portion of the mandrel (22) is provided with a jack matched with the positioning blocks.

9. The engine cup washer machining tool of claim 2,

the elastic gasket (23) is selected from one or more of a natural rubber gasket, a styrene butadiene rubber gasket, a nitrile butadiene rubber gasket, an isoprene rubber gasket and a silicon rubber gasket.

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