Excavator driving wheel and forging method thereof

Abstract

The invention discloses an excavator driving wheel and a forging method thereof, and belongs to the technical field of driving wheels, a wheel rim is clamped into a driving wheel main body, a rotating handle drives a screw rod to rotate, a nut drives a conical column to move into a mounting groove in the rotating process of the screw rod, so that a clamping rod can move in a sliding rail in the moving process of the conical column, and the driving wheel is driven to rotate. Meanwhile, the clamping rods extend out of the sliding holes until the clamping rods are clamped into the clamping grooves, the driving wheel body and the rim are clamped and installed through the clamping rods, the clamping rods on the inner wall of the rim can be clamped into an excavator transmission mechanism, the traditional mode that a bolt is adopted for fixing is abandoned, operation is very convenient and fast, and when the rim and the driving wheel body are separated, the rotating handle is reversely rotated, so that the driving wheel body and the rim are separated; when the outer teeth of the driving wheel are damaged, the driving wheel body can be independently taken down to be replaced or overhauled, the whole driving wheel does not need to be replaced, economic losses are reduced, and the excavator driving wheel has good application prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of drive wheels, and in particular relates to an excavator drive wheel and a forging method thereof. Background Art

[0002] An excavator, also known as an excavator or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and loads them into transport vehicles or unloads them to stockpiles. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rocks. Judging from the development of construction machinery in recent years, the development of excavators has been relatively rapid. Excavators have become one of the most important construction machinery in engineering construction. The three most important parameters of excavators are: operating weight (mass), engine power and bucket capacity.

[0003] Traditional excavator drive wheels are cast steel, but in order to meet the increasingly diversified market, new forged drive wheels are developed. There are many casting defects in cast steel drive wheels that are unavoidable, such as sand holes, shrinkage and other obvious defects. Although the drive wheel can be processed by integral forging, due to the difficulty in assembling and repairing the integrated excavator drive wheel, the drive wheel as a whole is usually installed on the transmission mechanism with bolts. When replacing or repairing, the entire drive wheel needs to be removed from the excavator transmission mechanism, which greatly increases the workload. If the outer teeth of the drive wheel are seriously damaged, the entire drive wheel needs to be replaced, which undoubtedly greatly increases the cost of use and causes certain economic losses.

[0004] In view of this, an excavator driving wheel and a forging method thereof are proposed to solve the above problems. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the present invention provides an excavator drive wheel and a forging method thereof, which solves the problem that there are many unavoidable casting defects of cast steel drive wheels, such as sand holes, shrinkage and other obvious defects. Although the drive wheel can be processed by integral forging, since the integrated excavator drive wheel has certain difficulties in assembly and maintenance, the drive wheel as a whole is usually installed on the transmission mechanism with bolts. When replacing or overhauling, the entire drive wheel needs to be removed from the excavator transmission mechanism, which greatly increases the workload. If the outer teeth of the drive wheel are seriously damaged, the entire drive wheel needs to be replaced, which undoubtedly greatly increases the cost of use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an excavator driving wheel, comprising a driving wheel body, a wheel rim is arranged inside the driving wheel body, six mounting grooves are opened on the front of the wheel rim, an assembly mechanism is arranged in the mounting groove, the top and bottom of the assembly mechanism are connected with a clamping component, the outside of the clamping component is fixedly connected to the inner wall of the mounting groove, six clamping grooves are opened on the inner wall of the driving wheel body, one end of the clamping component is clamped in the clamping groove, six sliding holes are opened on the outer wall and the inner wall of the wheel rim, and the clamping component is slidably connected in the sliding hole.

[0007] As a further solution of the present invention: the assembly mechanism includes a conical column, a nut is clamped inside the conical column, the nut is threadedly connected to the outside of the screw rod, one end of the screw rod is connected to the inner wall of the mounting groove through a bearing, and the other end of the screw rod is installed on a fixed plate through a bearing, and the fixed plate is fixedly connected in the mounting groove.

[0008] As a further solution of the present invention: one end of the screw rod away from the wheel rim is fixedly connected to a rotating handle, the top and the bottom of the conical column are both provided with sliding rails, and the clamping assembly is slidably connected in the sliding rails.

[0009] As a further solution of the present invention: a limiting plate is fixedly connected to one side of the conical column close to the turning handle, sliding grooves are provided on both sides of the inner wall of the installation groove, and the limiting plate is slidably connected in the two sliding grooves.

[0010] As a further solution of the present invention: the clamping assembly includes a clamping rod, the clamping rod passes through the sliding hole and is clamped in the clamping groove, and the bottom end of the clamping rod is slidably connected in the sliding rail.

[0011] As a further solution of the present invention: a fixing ring is provided outside the clamping rod, the fixing ring is fixedly connected to the inner wall of the mounting groove, four springs are fixedly connected to the top of the fixing ring, and the top ends of the four springs are fixed to the clamping rod.

[0012] As a further solution of the present invention: eight positioning grooves are opened inside the driving wheel body, positioning posts are clamped in the positioning grooves, and the eight positioning posts are fixedly connected to the back side of the wheel rim.

[0013] A forging method for an excavator driving wheel comprises the following steps:

[0014] S1. Forging blank: the raw material used for the driving wheel is heated to 1100℃-1200℃, the blank is flattened, a hole is punched in the middle of the blank, the hole is expanded after rounding, and an annular intermediate blank is made, and the annular intermediate blank is die-forged on a hammer, the annular intermediate blank is heated to 1100℃-1200℃, and forged on a die-forging hammer to form a tooth shape on the outside of the annular intermediate blank, and the final forging temperature is ≥1000℃ to form a prefabricated blank;

[0015] S2, medium frequency treatment and low temperature tempering: the produced prefabricated blank is subjected to medium frequency treatment at a temperature of 1100°C-1200°C, and low temperature tempering is performed, and the temperature of the low temperature tempering is controlled at 150°C-250°C;

[0016] S3, finishing machining: finishing the holes, tooth profile and the entire surface of the blank in S2;

[0017] S4, drilling installation grooves: using a tool to mill the blank hole, so that six card slots and eight positioning slots are formed on the inner wall of the hole;

[0018] S5. Finishing treatment: Hang the milled blank and put it into the shot peening machine to clean the surface oxide scale and strengthen the surface, grind off the remaining flash and burrs, and grind off the bumps and oxidation pits on the surface of the forging;

[0019] S6. Inspection and processing: Conduct flaw detection, dimensional inspection and appearance inspection on forgings.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, the wheel rim is inserted into the driving wheel body, so that the eight positioning columns on the back of the wheel rim are inserted into the eight positioning grooves, and the turning handle is rotated in sequence, so that the turning handle drives the screw rod to rotate, and the nut drives the tapered column to move into the installation groove during the rotation of the screw rod. Since the bottom of the clamping rod is slidably connected to the slide rail on the tapered column, the clamping rod can move in the slide rail during the movement of the tapered column, and the clamping rod extends out of the slide hole during the movement until the clamping rod is inserted into the clamping groove, and the driving wheel body and the wheel rim are clamped and installed by the clamping rod, and the clamping rod on the inner wall of the wheel rim can be clamped into the excavator transmission mechanism, abandoning the traditional bolt fixing method, and the operation is very convenient. When the wheel rim is separated from the driving wheel body, the turning handle is rotated in the opposite direction, so that the two relative clamping rods can approach each other and separate from the driving wheel body and the excavator transmission mechanism respectively. When the outer teeth of the driving wheel are damaged, the driving wheel body can be removed separately for replacement or repair, without replacing the entire driving wheel, thereby reducing economic losses and having good application prospects.

[0022] 2. In the present invention, after the driving wheel body and the wheel rim are assembled by setting a clamping rod, when separating the driving wheel body and the wheel rim, the handle is rotated in the opposite direction. During the rotation of the screw rod, the tapered column can be driven by the nut to move out of the installation groove. Since the clamping rod is supported by four springs, the four springs can pull the clamping rod to move into the installation groove, so that the two clamping rods are close to each other, and no human assistance is required to move the clamping rods, thereby facilitating the separation of the two clamping rods from the driving wheel body and the excavator transmission mechanism, improving the convenience of operation for separating the driving wheel body and the wheel rim, and supporting and limiting the clamping rod by the slide rail so that the clamping rod will not shift its position during the movement, thereby improving the stability of assembling or separating the driving wheel body and the wheel rim.

[0023] 3. In the present invention, the excavator driving wheel is forged by forging blanks, medium frequency treatment and low temperature tempering, precision turning, drilling installation grooves and finishing treatment, which replaces casting to ensure that the service life of the product is increased, avoids casting defects, solves costs while increasing processing efficiency, and reduces environmental pollution, so it has good application prospects; the eight positioning columns on the back of the rim are inserted into the eight positioning grooves to improve the stability of the assembly of the driving wheel body and the rim, and prevent the deviation angle of the driving wheel body and the rim from affecting normal use. Through the mutual cooperation between the limit plate and the slide groove, the shape of the tapered column is limited to prevent the nut and the tapered column from rotating synchronously during the rotation of the screw rod, thereby improving the stability of the tapered column driving the clamping rod to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic structural diagram of a cross section of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the connection between the wheel rim and the assembly mechanism of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the connection between the assembly mechanism and the clamping assembly of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the cross section of the driving wheel body of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the cross section of the wheel rim of the present invention;

[0030] In the figure: 1. driving wheel body; 2. wheel rim; 3. mounting groove; 4. assembly mechanism; 401. tapered column; 402. nut; 403. screw rod; 404. fixing plate; 405. turning handle; 406. slide rail; 407. limiting plate; 5. clamping assembly; 501. clamping rod; 502. fixing ring; 503. spring; 6. positioning column; 7. positioning groove; 8. clamping groove; 9. sliding hole; 10. slide groove. DETAILED DESCRIPTION

[0031] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0032] like Figure 1-6As shown, the present invention provides a technical solution: an excavator driving wheel, comprising a driving wheel body 1, a wheel rim 2 is arranged in the driving wheel body 1, six mounting grooves 3 are opened on the front of the wheel rim 2, an assembly mechanism 4 is arranged in the mounting groove 3, the assembly mechanism 4 comprises a tapered column 401, a nut 402 is clamped in the tapered column 401, the nut 402 is threadedly connected to the outside of a screw rod 403, one end of the screw rod 403 is connected to the inner wall of the mounting groove 3 through a bearing, and the other end of the screw rod 403 is installed on a fixed plate 404 through a bearing, and the fixed plate 4 04 is fixedly connected in the installation groove 3. Through the mutual cooperation between the conical column 401 and the clamping rod 501, the clamping rod 501 can move in the slide rail 406 during the movement of the conical column 401. At the same time, the clamping rod 501 extends out of the slide hole 9 during the movement until the clamping rod 501 is clamped into the clamping groove 8. The driving wheel body 1 and the wheel rim 2 are clamped and installed through the clamping rod 501, and the clamping rod 501 on the inner wall of the wheel rim 2 can be clamped into the transmission mechanism of the slave excavator, abandoning the traditional bolt fixing method, and the operation is very convenient;

[0033] The end of the screw rod 403 away from the wheel rim 2 is fixedly connected with a handle 405, and the top and bottom of the conical column 401 are both provided with slide rails 406, and the clamping assembly 5 is slidably connected in the slide rails 406;

[0034] A limiting plate 407 is fixedly connected to one side of the conical column 401 close to the handle 405. Slide grooves 10 are provided on both sides of the inner wall of the mounting groove 3. The limiting plate 407 is slidably connected in the two slide grooves 10. The limiting plate 407 cooperates with the slide grooves 10 to limit the conical column 401, thereby preventing the nut 402 and the conical column 401 from rotating synchronously during the rotation of the screw rod 403, thereby improving the stability of the conical column 401 driving the clamping rod 501 to move;

[0035] The top and bottom of the assembly mechanism 4 are both connected with a clamping assembly 5, the outer portion of the clamping assembly 5 is fixedly connected to the inner wall of the mounting groove 3, the clamping assembly 5 comprises a clamping rod 501, the clamping rod 501 passes through the sliding hole 9 and is clamped in the clamping groove 8, the bottom end of the clamping rod 501 is slidably connected in the slide rail 406, the slide rail 406 is used to support and limit the clamping rod 501, so that the clamping rod 501 will not deviate from its position during the movement, thereby improving the stability of the assembly or separation of the driving wheel body 1 and the wheel rim 2;

[0036] A fixing ring 502 is provided outside the clamping rod 501, and the fixing ring 502 is fixedly connected to the inner wall of the mounting groove 3. Four springs 503 are fixedly connected to the top of the fixing ring 502, and the tops of the four springs 503 are fixed to the clamping rod 501. Because the springs 503 are provided, the four springs 503 can pull the clamping rod 501 to move into the mounting groove 3, so that the two clamping rods 501 are close to each other, and no human assistance is required to move the clamping rods 501, so that the two clamping rods 501 are conveniently separated from the driving wheel body 1 and the excavator transmission mechanism, and the convenience of operation of separating the driving wheel body 1 and the wheel rim 2 is improved;

[0037] Eight positioning grooves 7 are provided inside the driving wheel body 1, and positioning posts 6 are clamped in the positioning grooves 7. The eight positioning posts 6 are fixedly connected to the back of the wheel rim 2. Through the mutual cooperation between the positioning posts 6 and the positioning grooves 7, the eight positioning posts 6 on the back of the wheel rim 2 are clamped into the eight positioning grooves 7, thereby improving the stability of the assembly of the driving wheel body 1 and the wheel rim 2 and preventing the driving wheel body 1 and the wheel rim 2 from being offset at an angle that affects normal use;

[0038] The inner wall of the driving wheel body 1 is provided with six slots 8 , one end of the snap-in assembly 5 is snap-fitted into the slot 8 , and the outer wall and inner wall of the wheel rim 2 are both provided with six sliding holes 9 , and the snap-in assembly 5 is slidably connected into the sliding holes 9 .

[0039] A forging method for an excavator driving wheel comprises the following steps:

[0040] S1. Forging blank: the raw material used for the driving wheel is heated to 1100℃-1200℃, the blank is flattened, a hole is punched in the middle of the blank, the hole is expanded after rounding, and an annular intermediate blank is made, and the annular intermediate blank is die-forged on a hammer, the annular intermediate blank is heated to 1100℃-1200℃, and forged on a die-forging hammer to form a tooth shape on the outside of the annular intermediate blank, and the final forging temperature is ≥1000℃ to form a prefabricated blank;

[0041] S2, medium frequency treatment and low temperature tempering: the produced prefabricated blank is subjected to medium frequency treatment at a temperature of 1100°C-1200°C, and low temperature tempering is performed, and the temperature of the low temperature tempering is controlled at 150°C-250°C;

[0042] S3, finishing machining: finishing the holes, tooth profile and the entire surface of the blank in S2;

[0043] S4, drilling installation grooves: using a tool to mill the blank hole, so that six slots 8 and eight positioning slots 7 are formed on the inner wall of the hole;

[0044] S5. Finishing treatment: Hang the milled blank and put it into the shot peening machine to clean the surface oxide scale and strengthen the surface, grind off the remaining flash and burrs, and grind off the bumps and oxidation pits on the surface of the forging;

[0045] S6. Inspection and processing: Conduct flaw detection, dimensional inspection and appearance inspection on forgings.

[0046] From the above we know:

[0047] By inserting the wheel rim 2 into the driving wheel body 1, the eight positioning columns 6 on the back of the wheel rim 2 are inserted into the eight positioning grooves 7, and the handle 405 is rotated in sequence, and the handle 405 drives the screw rod 403 to rotate. During the rotation of the screw rod 403, the nut 402 drives the tapered column 401 to move into the installation groove 3. Since the bottom of the clamping rod 501 is slidably connected to the slide rail 406 on the tapered column 401, the clamping rod 501 can move in the slide rail 406 during the movement of the tapered column 401, and the clamping rod 501 extends out of the slide hole 9 during the movement until the clamping rod 501 is clamped into the clamping groove 8, the driving wheel body 1 and the wheel rim 2 are clamped and installed by the clamping rod 501, and the clamping rod 501 on the inner wall of the wheel rim 2 can be clamped into the excavator transmission mechanism, abandoning the traditional bolt fixing method, and the operation is very convenient. When the wheel rim 2 is separated from the driving wheel body 1, the handle 405 is rotated in the opposite direction, and the two relative clamping rods 501 can be close to each other and respectively separated from the driving wheel body 1 and the excavator transmission mechanism. When the outer teeth of the driving wheel are damaged, the driving wheel body 1 can be removed separately for replacement or repair, without replacing the entire driving wheel, reducing economic losses, and having good application prospects;

[0048] After the driving wheel body 1 and the wheel rim 2 are assembled by setting the clamping rod 501, when separating the driving wheel body 1 and the wheel rim 2, the handle 405 is rotated in the opposite direction. During the rotation, the screw rod 403 can drive the tapered column 401 to move out of the installation groove 3 through the nut 402. Since the clamping rod 501 is supported by four springs 503, the four springs 503 can pull the clamping rod 501 to move into the installation groove 3, so that the two clamping rods 501 are close to each other, and no human assistance is required to move the clamping rod 501, thereby facilitating the separation of the two clamping rods 501 from the driving wheel body 1 and the excavator transmission mechanism, thereby improving the convenience of operation for separating the driving wheel body 1 and the wheel rim 2. The clamping rod 501 is supported and limited by the slide rail 406, so that the clamping rod 501 will not deviate from the position during the movement, thereby improving the stability of assembling or separating the driving wheel body 1 and the wheel rim 2.

[0049] The excavator drive wheel is forged by forging blanks, medium frequency treatment, low temperature tempering, precision turning, drilling installation grooves and finishing treatment, replacing casting to ensure that the service life of the product is increased, avoiding casting defects, solving costs while increasing processing efficiency, and reducing environmental pollution, so it has a good application prospect; the eight positioning columns 6 on the back of the rim 2 are inserted into the eight positioning grooves 7 to improve the stability of the assembly of the drive wheel body 1 and the rim 2, and prevent the offset angle of the drive wheel body 1 and the rim 2 from affecting normal use. Through the mutual cooperation between the limit plate 407 and the slide groove 10, the shape of the tapered column 401 is limited to prevent the nut 402 and the tapered column 401 from rotating synchronously during the rotation of the screw rod 403, thereby improving the stability of the tapered column 401 driving the clamping rod 501 to move.

[0050] The working principle of the present invention is:

[0051] When in use, the wheel rim 2 is inserted into the driving wheel body 1, so that the eight positioning columns 6 on the back of the wheel rim 2 are inserted into the eight positioning grooves 7, and the handle 405 is rotated in sequence, and the handle 405 drives the screw rod 403 to rotate. During the rotation of the screw rod 403, the nut 402 drives the tapered column 401 to move into the installation groove 3. Since the bottom of the clamping rod 501 is slidably connected to the slide rail 406 on the tapered column 401, the clamping rod 501 can move in the slide rail 406 during the movement of the tapered column 401, and the clamping rod 501 extends out of the sliding hole 9 during the movement until the clamping rod 501 is inserted into the clamping groove 8. The driving wheel body 1 and the wheel rim 2 are clamped and installed, and the clamping rod 501 on the inner wall of the wheel rim 2 can be clamped into the excavator transmission mechanism. When separating the driving wheel body 1 and the wheel rim 2, the handle 405 is rotated in the opposite direction. During the rotation, the screw rod 403 can drive the tapered column 401 to move out of the installation groove 3 through the nut 402. Since the clamping rod 501 is supported by four springs 503, the four springs 503 can pull the clamping rod 501 to move into the installation groove 3, so that the two clamping rods 501 are close to each other. There is no need for human assistance to move the clamping rod 501, and the two clamping rods 501 are separated from the driving wheel body 1 and the excavator transmission mechanism.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0053] The preferred implementation modes of the present application are described in detail above, but the present application is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present application.

Claims

1. A driving wheel for an excavator, comprising a driving wheel body (1), characterized in that: A wheel rim (2) is provided inside the driving wheel body (1), six installation grooves (3) are provided on the front of the wheel rim (2), an assembly mechanism (4) is provided inside the installation groove (3), the top and bottom of the assembly mechanism (4) are both connected with a clamping assembly (5), the outside of the clamping assembly (5) is fixedly connected to the inner wall of the installation groove (3), six clamping grooves (8) are provided on the inner wall of the driving wheel body (1), one end of the clamping assembly (5) is clamped in the clamping groove (8), the outer wall and the inner wall of the wheel rim (2) are both provided with six sliding holes (9), and the clamping assembly (5) is slidably connected in the sliding hole (9).

2. The excavator driving wheel according to claim 1, characterized in that: The assembly mechanism (4) comprises a conical column (401), a nut (402) being clamped inside the conical column (401), the nut (402) being threadedly connected to the outside of a screw rod (403), one end of the screw rod (403) being connected to the inner wall of the mounting groove (3) via a bearing, the other end of the screw rod (403) being mounted on a fixed plate (404) via a bearing, and the fixed plate (404) being fixedly connected in the mounting groove (3).

3. The excavator driving wheel according to claim 2, characterized in that: The end of the screw rod (403) away from the wheel rim (2) is fixedly connected to a rotating handle (405), the top and bottom of the conical column (401) are both provided with sliding rails (406), and the clamping assembly (5) is slidably connected in the sliding rails (406).

4. The excavator driving wheel according to claim 3, characterized in that: A limiting plate (407) is fixedly connected to one side of the conical column (401) close to the turning handle (405), and sliding grooves (10) are provided on both sides of the inner wall of the installation groove (3), and the limiting plate (407) is slidably connected in the two sliding grooves (10).

5. The excavator driving wheel according to claim 3, characterized in that: The clamping assembly (5) comprises a clamping rod (501), the clamping rod (501) passes through the sliding hole (9) and is clamped in the clamping groove (8), and the bottom end of the clamping rod (501) is slidably connected in the sliding rail (406).

6. The excavator driving wheel according to claim 5, characterized in that: The clamping rod (501) is provided with a fixing ring (502) outside, and the fixing ring (502) is fixedly connected to the inner wall of the mounting groove (3). Four springs (503) are fixedly connected to the top of the fixing ring (502), and the top ends of the four springs (503) are fixed to the clamping rod (501).

7. The excavator driving wheel and forging method thereof according to claim 1, characterized in that: Eight positioning grooves (7) are provided inside the driving wheel body (1), positioning columns (6) are clamped in the positioning grooves (7), and the eight positioning columns (6) are fixedly connected to the back side of the wheel rim (2).

8. A forging method for an excavator driving wheel, according to the excavator driving wheel according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Forging blank: the raw material used for the driving wheel is heated to 1100℃-1200℃, the blank is flattened, a hole is punched in the middle of the blank, the hole is expanded after rounding, and an annular intermediate blank is made, and the annular intermediate blank is die-forged on a hammer, the annular intermediate blank is heated to 1100℃-1200℃, and forged on a die-forging hammer to form a tooth shape on the outside of the annular intermediate blank, and the final forging temperature is ≥1000℃ to form a prefabricated blank; S2, medium frequency treatment and low temperature tempering: the produced prefabricated blank is subjected to medium frequency treatment at a temperature of 1100°C-1200°C, and low temperature tempering is performed, and the temperature of the low temperature tempering is controlled at 150°C-250°C; S3, finishing machining: finishing the holes, tooth profile and the entire surface of the blank in S2; S4, drilling the installation groove: using a tool to mill the blank hole, so that six clamping grooves (8) and eight positioning grooves (7) are formed on the inner wall of the hole; S5. Finishing treatment: Hang the milled blank and put it into the shot peening machine to clean the surface oxide scale and strengthen the surface, grind off the remaining flash and burrs, and grind off the bumps and oxidation pits on the surface of the forging; S6. Inspection and processing: Conduct flaw detection, dimensional inspection and appearance inspection on forgings.

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