Apparatus and method for machining an alloy sleeve

Abstract

The application discloses a processing device and method of an alloy sleeve, and the device comprises a workbench, a rotating disc arranged on the upper portion of the workbench, and a wire cutting mechanism arranged on the left side of the workbench; the bottom center of the rotating disc is connected with one end of a main shaft, the other end of the main shaft is connected with a driving motor through a transmission mechanism, the upper center of the rotating disc is provided with a positioning rod, and the positioning rod is matched with a positioning hole arranged at the bottom of a workpiece; the workbench is arranged in a horizontal direction in translation, and the lower portion of the workbench is in sliding fit with a guide rail assembly; the wire cutting mechanism comprises wire racks arranged in an upper-lower correspondence, and an electrode wire wound between the wire racks, and the wire racks are installed on the right side of a control system. The workpiece is placed on the rotating disc and synchronously rotated, and the electrode wire is directly cut to form a conical alloy sleeve, so that the alloy sleeve is formed through one-time cutting, the material utilization rate is improved, and the cost is saved.

Description

Technical Field

[0001] This invention relates to an apparatus and method for processing alloy sleeves. Background Technology

[0002] With the increase in high-calcification plastic products and the research and use of various modified engineering plastics, the requirements for the wear resistance of barrels are becoming increasingly stringent. Replacing the entire barrel would significantly increase production costs for companies. Current technology typically involves embedding an alloy sleeve inside the barrel's inner bore. These alloy sleeves are often conical in shape. Figure 7 As shown. The machining of alloy sleeves mostly adopts wire EDM. A cylindrical workpiece can be cut into multiple alloy sleeves of different sizes. In the existing machining process, during wire EDM, the workpiece is generally fixed, and a continuously moving thin metal wire (called the electrode wire) is used as the electrode to perform pulse spark discharge to remove metal from the workpiece and cut it into shape. After cutting, a cylindrical alloy sleeve is formed. Then, the surface and inner hole of the alloy sleeve are further machined to form a conical structure. This process is not only cumbersome, but also generates a lot of cutting waste, resulting in low material utilization. Summary of the Invention

[0003] To address the shortcomings mentioned above, this invention provides an apparatus and method for processing alloy sleeves.

[0004] To achieve the above objectives, the present invention provides a processing apparatus for alloy sleeves, including a worktable, a turntable disposed on the upper part of the worktable, and a wire cutting mechanism disposed on the left side of the worktable;

[0005] One end of the main shaft is connected to the center of the bottom of the turntable, and the other end of the main shaft is connected to the drive motor through a transmission mechanism. A positioning rod is provided at the center of the upper part of the turntable. The positioning rod is matched with the positioning hole at the bottom of the workpiece. The radius of the turntable is smaller than the distance between the inclined hole at the bottom of the workpiece and the center of the bottom surface of the workpiece.

[0006] The worktable is horizontally translatable, and the lower part of the worktable is slidably engaged with the guide rail assembly;

[0007] The wire cutting mechanism includes a wire frame arranged vertically and an electrode wire wound between the wire frames. The wire frame is installed on the right side of the control system.

[0008] As a further improvement of the present invention, a support base is detachably installed on the outer wall of the turntable, and at least two support bases are provided along the circumferential direction of the turntable, with the upper surface of the support base flush with the surface of the turntable.

[0009] As a further improvement of the present invention, the support base is arranged radially along the turntable, and the distance between the end of the support base and the center of the turntable is greater than the radius of the workpiece.

[0010] As a further improvement of the present invention, the end of the support base facing the turntable is provided with an integrated limiting block, and a corresponding limiting groove is machined on the outer wall of the turntable to match the limiting block.

[0011] As a further improvement of the present invention, the upper surface of the turntable is provided with radially distributed marking lines corresponding to the positions of the oblique holes, and the positions of the support base are offset from the marking lines.

[0012] As a further improvement of the present invention, the positioning rod has a square cross-section.

[0013] As a further improvement of the present invention, a clearance groove is machined on the left side of the worktable in the horizontal direction to avoid the electrode wire.

[0014] This invention also discloses a method for processing an alloy sleeve, using the aforementioned alloy sleeve processing apparatus, comprising the following steps:

[0015] Step 1: Pre-machine oblique holes axially on the workpiece. Multiple oblique holes are distributed radially along the workpiece. The oblique holes are inclined outward from top to bottom. Machine a positioning hole at the center of the bottom of the workpiece. Place the workpiece on the turntable. The positioning rod on the turntable extends into the positioning hole. The position of the oblique hole corresponds to the marking line on the turntable and keeps the oblique hole facing to the left.

[0016] Step 2: Pass the electrode wire through the outermost oblique hole, adjust the tilt angle of the electrode wire so that the electrode wire coincides with the central axis of the oblique hole, and then lock the electrode wire.

[0017] Step 3: The control system starts working, the electrode wire is powered on, and at the same time the drive motor drives the spindle to rotate. The turntable and the workpiece rotate synchronously. The electrode wire cuts along the rotation trajectory of the inclined hole. When the cutting angle is greater than 270°, the control system and drive motor stop working. A support seat is installed on the side wall of the turntable. The position of the support seat avoids the uncut part of the workpiece. Then the control system and drive motor continue to work. The electrode wire cuts the remaining part and forms a conical alloy sleeve.

[0018] Step 4: After cutting is completed, the control system and drive motor stop working, the electrode wire is removed, the alloy sleeve formed by cutting is then removed, the support base is dismantled, the worktable is moved to the left as a whole, the moving distance is the distance between adjacent oblique holes, and the above cutting process is repeated.

[0019] The beneficial effects of this invention are as follows:

[0020] This invention uses a method where the electrode wire is fixed while the workpiece rotates. The workpiece is placed on a turntable and rotates synchronously. The electrode wire is used to directly cut and form a conical alloy sleeve. The process is completed in one step without additional processing, making it convenient to process. At the same time, it effectively improves material utilization and saves costs. Attached Figure Description

[0021] Figure 1 This is a front view of a processing apparatus for an alloy sleeve according to the present invention;

[0022] Figure 2 This is a top view of workbench 1;

[0023] Figure 3 This is a schematic diagram of the operation of the present invention. Figure I ;

[0024] Figure 4 This is a schematic diagram of the operation of the present invention. Figure II ;

[0025] Figure 5 This is a top view of workpiece 12;

[0026] Figure 6 This is a center sectional view of workpiece 12;

[0027] Figure 7 This is a cross-sectional view of alloy sleeve 13.

[0028] In the diagram: 1. Worktable; 11. Clearance groove; 2. Turntable; 21. Limit groove; 22. Marker line; 3. Positioning rod; 4. Support base; 41. Limiting block; 5. Electrode wire; 6. Wire frame; 7. Control system; 8. Spindle; 9. Drive motor; 10. Guide rail assembly; 12. Workpiece; 121. Angled hole; 122. Positioning hole; 13. Alloy sleeve. Detailed Implementation

[0029] like Figure 1 As shown, the processing apparatus and method for an alloy sleeve according to the present invention includes a worktable 1, a turntable 2 disposed on the upper part of the worktable 1, and a wire cutting mechanism disposed on the left side of the worktable 1.

[0030] One end of the spindle 8 is connected to the bottom center of the turntable 2, and the other end of the spindle 8 is connected to the drive motor 9 through the transmission mechanism. A positioning rod 3 is provided at the upper center of the turntable 2. The cross-section of the positioning rod 3 is square. The positioning rod 3 is matched with the positioning hole 122 at the bottom of the workpiece 12. The radius of the turntable 2 is smaller than the distance between the inclined hole 121 at the bottom of the workpiece 12 and the center of the bottom surface of the workpiece 12.

[0031] A support base 4 is detachably installed on the outer wall of the turntable 2. At least two support bases 4 are provided along the circumference of the turntable 2. The upper surface of the support base 4 is flush with the surface of the turntable 2. The support base 4 is arranged radially along the turntable 2. The distance between the end of the support base 4 and the center of the turntable 2 is greater than the radius of the workpiece 12. An integrated limiting block 41 is provided at the end of the support base 4 facing the turntable 2. A limiting groove 21 is correspondingly machined on the outer wall of the turntable 2 to match the limiting block 41. Radially distributed marking lines 22 are provided on the upper surface of the turntable 2, corresponding to the position of the oblique hole 121. The position of the support base 4 is staggered from the marking lines 22.

[0032] The worktable 1 is horizontally slidably positioned, and the lower part of the worktable 1 is slidably engaged with the guide rail assembly 10;

[0033] The wire cutting mechanism includes a wire frame 6 arranged vertically and an electrode wire 5 wound between the wire frames 6. The wire frame 6 is installed on the right side of the control system 7. A clearance groove 11 is machined on the left side of the worktable 1 in the horizontal direction to avoid the electrode wire 5.

[0034] In conjunction with the aforementioned alloy sleeve processing apparatus, a method for processing alloy sleeves is provided, specifically including the following steps:

[0035] Step 1: Pre-machine oblique holes 121 axially on the workpiece 12. Multiple oblique holes 121 are distributed radially along the workpiece 12. The oblique holes 121 are inclined outward from top to bottom. A positioning hole 122 is machined at the center of the bottom of the workpiece 12. The workpiece 12 is placed on the turntable 2. The positioning rod 3 on the turntable 2 is inserted into the positioning hole 122. The position of the oblique hole 121 corresponds to the marking line 22 on the turntable 2, and the oblique hole 121 is kept facing to the left.

[0036] Step 2: Pass the electrode wire 5 through the outermost oblique hole 121, adjust the tilt angle of the electrode wire 5 so that the electrode wire 5 coincides with the central axis of the oblique hole 121, and then lock the electrode wire 5.

[0037] Step 3: The control system 7 is activated, the electrode wire 5 is powered on, and at the same time the drive motor 9 drives the spindle 8 to rotate. The turntable 2 and the workpiece 12 rotate synchronously. The electrode wire 5 cuts along the rotation trajectory of the inclined hole 121. When the cutting angle is greater than 270°, the control system 7 and the drive motor 9 stop working. A support seat 4 is installed on the side wall of the turntable 2. The position of the support seat 4 avoids the uncut part of the workpiece 12. Then the control system 7 and the drive motor 9 continue to work. The electrode wire 5 cuts the remaining part and forms a conical alloy sleeve 13. The support seat 4 is mainly used to support the cut alloy sleeve 13 to prevent the alloy sleeve 13 from sinking and damaging the electrode wire 5.

[0038] Step 4: After the cutting is completed, the control system 7 and drive motor 9 stop working, remove the electrode wire 5, then remove the alloy sleeve 13 formed by cutting, remove the support base 4, move the worktable 1 to the left as a whole, the moving distance is the distance between the adjacent oblique holes 121, and continue to repeat the above cutting process.

[0039] This invention uses a method where the electrode wire is fixed while the workpiece rotates. The workpiece is placed on a turntable and rotates synchronously. The electrode wire is used to directly cut and form a conical alloy sleeve. The process is completed in one step without additional processing, making it convenient to process. At the same time, it effectively improves material utilization and saves costs.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A processing apparatus for alloy sleeves, characterized in that: Includes a workbench (1), a turntable (2) located on the upper part of the workbench (1), and a wire cutting mechanism located on the left side of the workbench (1); The turntable (2) is connected to one end of the main shaft (8) at the bottom center. The other end of the main shaft (8) is connected to the drive motor (9) through the transmission mechanism. The turntable (2) is provided with a positioning rod (3) at the upper center. The positioning rod (3) is matched with the positioning hole (122) at the bottom of the workpiece (12). The radius of the turntable (2) is smaller than the distance between the inclined hole (121) at the bottom of the workpiece (12) and the center of the bottom surface of the workpiece (12). Multiple inclined holes (121) are distributed radially along the workpiece (12). The inclined holes (121) are inclined outward from top to bottom. The worktable (1) is arranged to move horizontally, and the lower part of the worktable (1) is slidably engaged with the guide rail assembly (10); The wire cutting mechanism includes a wire frame (6) arranged vertically and vertically, and an electrode wire (5) wound between the wire frames (6). The wire frame (6) is installed on the right side of the control system (7). A support base (4) is detachably installed on the outer wall of the turntable (2). At least two support bases (4) are provided along the circumferential direction of the turntable (2). The upper surface of the support base (4) is flush with the surface of the turntable (2). The support base (4) is arranged radially along the turntable (2). The distance between the end of the support base (4) and the center of the turntable (2) is greater than the radius of the workpiece (12). An integral limiting block (41) is provided at one end of the support base (4) facing the turntable (2). A limiting groove (21) is correspondingly machined on the outer wall of the turntable (2) to match the limiting block (41). Radially distributed marking lines (22) are provided on the upper surface of the turntable (2) and correspond to the position of the oblique hole (121). The position of the support base (4) is offset from the marking lines (22).

2. The processing apparatus for alloy sleeves according to claim 1, characterized in that: The positioning rod (3) has a square cross-section.

3. The processing apparatus for alloy sleeves according to claim 1, characterized in that: The workbench (1) has a horizontally machined clearance groove (11) on the left side to avoid the electrode wire (5).

4. A method for processing an alloy sleeve, using an alloy sleeve processing apparatus as described in any one of claims 1-3, comprising the following steps: Step 1: Pre-machine oblique holes (121) axially on the workpiece (12). Multiple oblique holes (121) are distributed radially along the workpiece (12). The oblique holes (121) are inclined outward from top to bottom. A positioning hole (122) is machined at the center of the bottom of the workpiece (12). The workpiece (12) is placed on the turntable (2). The positioning rod (3) on the turntable (2) is inserted into the positioning hole (122). The position of the oblique hole (121) corresponds to the marking line (22) on the turntable (2), and the oblique hole (121) is kept facing to the left. Step 2: Pass the electrode wire (5) through the outermost oblique hole (121), adjust the tilt angle of the electrode wire (5) so that the electrode wire (5) coincides with the central axis of the oblique hole (121), and then lock the electrode wire (5). Step 3: The control system (7) is working, the electrode wire (5) is powered on, and at the same time the drive motor (9) drives the spindle (8) to rotate. The turntable (2) and the workpiece (12) rotate synchronously. The electrode wire (5) cuts along the rotation trajectory of the inclined hole (121). When the cutting angle is greater than 270°, the control system (7) and the drive motor (9) stop working. A support seat (4) is installed on the side wall of the turntable (2). The position of the support seat (4) avoids the uncut part of the workpiece (12). Then the control system (7) and the drive motor (9) continue to work. The electrode wire (5) cuts the remaining part and forms a conical alloy sleeve (13). Step 4: After the cutting is completed, the control system (7) and drive motor (9) stop working, remove the electrode wire (5), then remove the alloy sleeve (13) formed by cutting, remove the support base (4), move the worktable (1) to the left as a whole, the moving distance is the distance between adjacent oblique holes (121), and continue to repeat the above cutting process.

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