Method for processing irregular elbow multi-hole groove

Abstract

The application discloses a processing method of a non-regular elbow multi-hole groove, which comprises the following steps: step one, according to the length of a workpiece to be processed, the position between two parts of a tool clamp is adjusted, so that the workpiece to be processed is placed on the clamping position of the two parts of the tool clamp; step two, the tool clamp is fixed on a rotating platform; step three, the workpiece to be processed is positioned and fixed on the tool clamp; and step four, the tool clamp is rotated by a rotating mechanism to process the groove of three holes of the workpiece. The structure of the bottom plate and the movable bottom plate is designed, the distance between the two is adjusted by a fastening screw, the clamping and fixing of workpieces with different lengths are satisfied, the trouble of repeatedly making tools is avoided, and the universality is realized. The application has the advantages of simple structure, convenient manufacturing, convenient operation and use, time and labor saving, reduced labor intensity of workers, high production efficiency, satisfaction of the needs of batch production, and greatly improved qualified rate of finished products.

Description

Technical Field

[0001] This invention relates to a method for processing a multi-hole bevel on an irregular elbow, belonging to the field of machining technology. Background Technology

[0002] In machining processes, irregularly shaped parts are frequently encountered, such as irregular elbow castings. After casting, the blank is machined. These elbow castings have irregular shapes, with three holes to be machined, located in different orientations and not on the same plane. The casting blanks often exhibit deformation. To meet the technical requirements of parallelism, perpendicularity, height, and center distance as specified in the drawings, the existing machining method involves fabricating three specialized fixtures and machining the irregular elbow in three separate processes. This requires the use of various measuring tools, such as spirit levels, height gauges, and right-angle rulers. Because of the multiple machining processes, there are bound to be positioning references that affect the machining, thus demanding high levels of operator skill. These problems not only lead to low machining efficiency but also make it impossible to guarantee machining tolerances. The resulting irregular elbows have a high rate of defective products, requiring extensive rework, and some are scrapped due to dimensional or parallelism defects, posing significant challenges to the production of finished products. Moreover, these irregular bends vary in length, requiring the manufacture of corresponding tooling for different batches. Existing processing methods are time-consuming and labor-intensive, unable to meet the needs of mass production. Furthermore, a search revealed no reports of relevant processing methods or devices, necessitating research and development. Summary of the Invention

[0003] In order to overcome the above difficulties, our company organized a research and development team to discuss and finally determined to design a processing method for irregular elbows with multi-hole bevels.

[0004] To achieve the above objectives, the technical means employed in this invention are as follows:

[0005] A method for processing a multi-hole bevel on an irregular elbow includes the following steps:

[0006] Step 1: Adjust the position between the two parts of the fixture according to the length of the workpiece to be processed, so that the workpiece is placed in the clamping position of the two parts of the fixture.

[0007] Step 2: Fix the tooling fixture on the rotating platform;

[0008] Step 3: Position and fix the workpiece to be processed on the tooling fixture;

[0009] Step 4: The rotating mechanism drives the tooling fixture to rotate, and the bevels of the three holes of the workpiece are machined.

[0010] Furthermore, the tooling fixture includes a base plate, a movable base plate, support plate I, support plate II, support plate III, fastening screws, and a locking device. The base plate is fixedly mounted on the rotating platform. A groove is provided on the side of the base plate facing the movable base plate. A protrusion is provided on the movable base plate corresponding to the groove. An elongated through-hole groove parallel to the edge of the groove is provided on the body of the movable base plate. The fastening screw is connected to the rotating platform through the elongated through-hole groove. The movable base plate moves into position along the length of the elongated through-hole groove, and the fastening screw is locked. Support plate I and support plate II are parallel, and one end of the two plates is connected to the base plate, while the other end is provided with an arc-shaped groove. Support plate III is perpendicular to support plate I and support plate II, and one end is connected to the movable base plate, while the other end is provided with a square groove. The locking device is used to lock the workpiece to be processed placed on support plate I, support plate II, and support plate III.

[0011] Furthermore, the groove on the base plate is provided with sliding grooves on both sides, and the protrusion on the movable base plate is provided with sliders on both sides, which are inserted into the sliding grooves for sliding connection.

[0012] Furthermore, the locking device includes a top-pressing mechanism that cooperates with support plate I and support plate II, and a clamping mechanism that cooperates with support plate III. The top-pressing mechanism includes a top rod, a top-pressing plate, and an adjusting rod. One end of the top-pressing plate has an arc-shaped groove on its arc-shaped groove surface facing support plate I or support plate II. The top-pressing plate has a through-hole groove for fitting onto the adjusting rod. A bolt is installed on the adjusting rod above the through-hole groove. The other end of the top-pressing plate is pressed onto the top rod, and the other end of the top rod is pressed onto the rotating platform. The clamping mechanism includes two fixed rods and a pressure plate. The pressure plate has two through holes for fitting onto the two fixed rods. A fixing bolt is installed on the fixed rod above the pressure plate.

[0013] Furthermore, the rotating platform includes a tooling platform, a base frame, and a rotating mechanism. The rotating mechanism is mounted on the base frame, and its output shaft is connected to the tooling platform. The rotating mechanism is driven by a pneumatic, electric, or hydraulic motor.

[0014] The beneficial effects of this invention are as follows: through the structural design of the base plate and the movable base plate, the distance between the two can be adjusted by fastening screws to meet the clamping and fixing of workpieces of different lengths, avoiding the trouble of repeatedly making tooling and achieving versatility; the structure is simple, easy to manufacture, and the damaged parts are easy to replace and repair; it is convenient to operate and use, saving time and effort and reducing the labor intensity of workers; it has high production efficiency, can meet the needs of mass production, and greatly improves the finished product qualification rate. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0017] Figure 2 This is a schematic diagram of a partially opened structure according to Embodiment 2 of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0019] In the diagram: 1. Base plate, 2. Movable base plate, 3. Support plate I, 4. Support plate II, 5. Support plate III, 6. Fastening screw, 7. Locking device, 71. Top rod, 72. Top pressure plate, 73. Adjusting rod, 74. Fixing rod, 75. Pressure plate, 8. Rotating platform, 9. Workpiece to be processed. Detailed Implementation

[0020] Example 1

[0021] A method for processing irregular bevel joints includes the following steps:

[0022] Step 1: Adjust the position between the two parts of the fixture according to the length of the workpiece to be processed, so that the workpiece is placed in the clamping position of the two parts of the fixture.

[0023] Step 2: Fix the tooling fixture on the rotating platform;

[0024] Step 3: Position and fix the workpiece to be processed on the tooling fixture;

[0025] Step 4: The rotating mechanism drives the tooling fixture to rotate, and the bevels of the three holes of the workpiece are machined.

[0026] In this embodiment, the tooling fixture is divided into two parts, allowing for length adjustment to meet the needs of workpieces of different lengths. The rotary platform enables the overall workpiece to rotate after clamping, meeting processing requirements with high speed and accurate positioning. The method of this embodiment can solve the need for machining three holes in irregular elbow castings.

[0027] Example 2

[0028] like Figure 1 , 2The diagram illustrates the machining of a three-hole bevel on an irregular elbow. The tooling fixture structure used in this machining process includes a base plate 1, a movable base plate 2, a support plate I 3, a support plate II 4, a support plate III 5, fastening screws 6, and a locking device 7. The base plate 1 is fixedly mounted on a rotating platform 8. A groove is provided on the side of the base plate 1 facing the movable base plate 2. A protrusion is provided on the movable base plate 2 corresponding to the groove, and a long through-hole groove parallel to the edge of the groove is provided on the body of the movable base plate 2. The fastening screws 6 are connected to the rotating platform through the long through-hole groove. The movable base plate moves into place along the length of the long through-hole groove, and the fastening screws 6 are locked in place. The long through-hole groove provides adjustment space for the base plate 1 and the movable base plate 2. One or multiple fastening screws 6 can be used to fix the movable base plate 2.

[0029] As a preferred embodiment, in order to better fix and ensure the positional relationship between the base plate 1 and the movable base plate 2, the groove on the base plate 1 is provided with sliding grooves on both sides, and the protrusion on the movable base plate 2 is provided with sliders on both sides, and the sliders are inserted into the sliding grooves for sliding connection.

[0030] Support plate I3 and support plate II4 are parallel, and one end of the two plates is connected to the base plate 1, while the other end is provided with an arc-shaped groove. Support plate III5 is perpendicular to support plate I3 and support plate II4, and one end is connected to the movable base plate 2, while the other end is provided with a square groove. Locking device 7 is used to lock the workpiece 9 to be processed placed on support plate I3, support plate II4 and support plate III5.

[0031] Example 3

[0032] like Figure 3 The locking device 7, as shown in the specific structural design, includes a top-pressing mechanism that cooperates with support plate I3 and support plate II4, and a clamping mechanism that cooperates with support plate III5. The top-pressing mechanism includes a top rod 71, a top-pressing plate 72, and an adjusting rod 73. One end of the top-pressing plate 72 has an arc-shaped groove on its arc-shaped groove surface facing support plate I3 or support plate II4. The plate body of the top-pressing plate 72 has a through-hole groove for fitting onto the adjusting rod 73. A bolt is installed on the adjusting rod 73 above the through-hole groove. The other end of the top-pressing plate 73 is pressed onto the top rod 71, and the other end of the top rod 71 is pressed onto the rotating platform 8. The clamping mechanism includes two fixed rods 74 and a pressure plate 75. The pressure plate 75 has two through holes for fitting onto the two fixed rods 74. A fixing bolt is installed on the fixed rods 74 above the pressure plate 75.

[0033] As a specific structural design of the rotating platform, the rotating platform 8 includes a tooling platform, a base frame, and a rotating mechanism. The rotating mechanism is mounted on the base frame, and its output shaft is connected to the tooling platform. The rotating mechanism is driven by a pneumatic, electric, or hydraulic motor.

[0034] As can be seen from the above embodiments, the present invention, through the structural design of the base plate and the movable base plate, adjusts the distance between the two with fastening screws to meet the clamping and fixing of workpieces of different lengths, avoids the trouble of repeatedly making tooling, and achieves versatility; the structure is simple, easy to manufacture, and the damaged parts are easy to replace and repair; it is convenient to operate and use, saves time and effort, and reduces the labor intensity of workers; it has high production efficiency, can meet the needs of mass production, and greatly improves the finished product qualification rate.

[0035] Although the specific embodiments of the present invention have been described and explained in detail above, it should be noted that we can make various equivalent changes and modifications to the above embodiments based on the concept of the present invention. As long as the resulting functions do not exceed the spirit covered by the specification, they should be within the protection scope of the present invention.

Claims

1. A method for processing a multi-hole bevel on an irregular elbow, characterized in that, Includes the following steps: Step 1: Adjust the position between the two parts of the fixture according to the length of the workpiece to be processed, so that the workpiece is placed in the clamping position of the two parts of the fixture. Step 2: Fix the tooling fixture on the rotating platform; Step 3: Position and fix the workpiece to be processed on the tooling fixture; Step 4: The rotating mechanism drives the tooling fixture to rotate, and the bevels of the three holes in the workpiece are machined. The tooling fixture includes a base plate, a movable base plate, support plate I, support plate II, support plate III, fastening screws, and a locking device. The base plate is fixedly mounted on a rotating platform. A groove is provided on the side of the base plate facing the movable base plate. A protrusion is provided on the movable base plate corresponding to the groove. An elongated through-hole groove parallel to the edge of the groove is provided on the body of the movable base plate. The fastening screw is connected to the rotating platform through the elongated through-hole groove. The movable base plate moves into place along the length of the elongated through-hole groove, and the fastening screw is locked. Support plate I and support plate II are parallel, and one end of the two plates is connected to the base plate, while the other end is provided with an arc-shaped groove. Support plate III is perpendicular to support plate I and support plate II, and one end is connected to the movable base plate, while the other end is provided with a square groove. The locking device is used to lock the workpiece to be processed placed on support plate I, support plate II, and support plate III.

2. The processing method for the multi-hole bevel of the irregular elbow according to claim 1, characterized in that: The groove on the base plate is provided with sliding grooves on both sides, and the protrusion on the movable base plate is provided with sliders on both sides. The sliders are inserted into the sliding grooves for sliding connection.

3. The processing method for the multi-hole bevel of the irregular elbow according to claim 1, characterized in that: The locking device includes a top-pressing mechanism that cooperates with support plate I and support plate II, and a clamping mechanism that cooperates with support plate III. The top-pressing mechanism includes a top rod, a top-pressing plate, and an adjusting rod. One end of the top-pressing plate has an arc-shaped groove on its arc-shaped groove surface facing support plate I or support plate II. The top-pressing plate has a through-hole groove for fitting onto the adjusting rod. A bolt is installed on the adjusting rod above the through-hole groove. The other end of the top-pressing plate is pressed onto the top rod, and the other end of the top rod is pressed onto the rotating platform. The clamping mechanism includes two fixed rods and a pressure plate. The pressure plate has two through holes for fitting onto the two fixed rods. A fixing bolt is installed on the fixed rod above the pressure plate.

4. The processing method for the multi-hole bevel of the irregular elbow according to claim 1, characterized in that: The rotating platform includes a tooling platform, a base frame, and a rotating mechanism. The rotating mechanism is mounted on the base frame, and its output shaft is connected to the tooling platform. The rotating mechanism is driven by a pneumatic, electric, or hydraulic motor.

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