An adjustable one-piece machining tool for boring machines used to machine shell-forming hammerheads.

Abstract

This utility model discloses an adjustable integrated machining tool for boring machines used in machining shell-forming hammerheads, belonging to the field of mechanical processing. Addressing the problems of low efficiency and poor precision caused by step-by-step tool changes in traditional processes, this tool adopts a modular design, integrating the end-face cutting tool holder, main chamfering tool holder, and secondary chamfering tool holder onto the same tool head. Through axial offset installation, a stepped cutting structure is formed, enabling end-face machining and chamfering to be completed in a single clamping. The tool head is equipped with a tool holder adjustment groove and a tool holder clamping device. The radial position of the cutting tool holder is adjusted by the tool holder adjustment bolt, and radial runout is eliminated by the tool holder clamping device, enabling end-face machining and chamfering of different sizes. The layered cutting strategy distributes the load across each operation, reducing tool wear and extending service life. This utility model significantly reduces tool change time and repeated clamping errors, improving machining efficiency, and is particularly suitable for mass production scenarios of aluminum electrolytic shell-forming hammerheads.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing, specifically relating to an adjustable integrated machining tool for boring machines used for machining shell-forming hammer heads. Background Technology

[0002] In the field of machining, boring machines are widely used for high-precision hole machining and end face finishing. In traditional processes, the end face machining and chamfering of the shell-breaking hammerhead need to be completed in separate steps: the shell-breaking hammerhead is a core component of the aluminum electrolysis shell-breaking system, consisting of a hammerhead, hammer rod, and connector, which are welded together after machining. The hammer rod is a steel pipe, and the length of the hammer rod and the welding bevel are machined using a boring machine. When machining the hammer rod on the boring machine, the length of the hammer rod needs to be machined first using an end face boring tool, and then the welding bevel needs to be machined using a chamfering boring tool. During the machining process, the tools need to be changed manually twice. When chamfering, machining, measurement, and re-machining are required to ensure the chamfer dimensions. In this process, the frequent tool changes not only increase the machining time, but also easily cause the machining reference to shift due to repeated clamping, affecting the dimensional accuracy. Utility Model Content

[0003] The purpose of this utility model is to provide an adjustable integrated machining tool for boring machines used for machining shell-forming hammers. Through modular design, it solves the problems of low efficiency and complex adjustment in traditional step-by-step machining, and achieves rapid switching and precise machining.

[0004] The technical solution of this utility model is as follows:

[0005] An adjustable integrated machining tool for boring machines used in machining shell-forming hammerheads includes a cutter head, which is a cylindrical component. The cutter head has a tool holder mounting structure, which includes a mounting groove and a fixing hole. The mounting groove is located on one end face of the cutter head and extends radially along the cutter head. A fixing hole is located along the central axis of the cutter head, penetrating through it. Multiple tool holder adjustment grooves are located on the outer periphery of the cutter head. Adjustable tool holders are installed within these grooves. Each adjustable tool holder includes a cutting tool holder, a tool holder adjustment bolt, and a retaining spring I. The bottom of the tool holder adjustment groove is equipped with... It has a screw hole and a through hole on the cutting tool holder. The tool holder adjusting bolt passes through the through hole of the cutting tool holder and extends out of the cutting tool holder. The cutting tool holder is engaged in the tool holder adjusting groove. The cutting tool holder is installed in the tool holder adjusting groove by the tool holder adjusting bolt. The radial installation depth of the cutting tool holder can be adjusted by the tool holder adjusting bolt. The end of the cutting tool holder away from the installation groove extends out of the cutter head end face. The end of the cutting tool holder extending out of the cutter head end face is provided with a cutting head. The cutting edge is provided on the side of the cutting head near the central axis of the cutter head. The cutting edge faces the central axis of the cutter head.

[0006] Furthermore, the tool holder adjusting bolt is provided with a retaining spring I, and the tool holder adjusting bolt is connected to the cutting tool holder through the retaining spring I.

[0007] Furthermore, the tool holder adjustment groove is parallel to the central axis of the cutter head and passes through both end faces of the cutter head. The end of the cutting tool holder near the mounting groove extends out of the end face of the cutter head. A tool holder slot is provided on the side of the cutting tool holder near the central axis of the cutter head. Both ends of the cutting tool holder form protrusions. The cutting tool holder has a C-shaped structure. The two protrusions of the cutting tool holder extend towards the central axis of the cutter head. The two protrusions are respectively in close contact with the two end faces of the cutter head on the side facing the tool holder slot. The tool holder slot is engaged in the tool holder adjustment groove, and the tool holder slot is compatible with the tool holder adjustment groove.

[0008] Furthermore, the cross-section of the tool holder adjustment groove is rectangular.

[0009] Furthermore, the cutter head is equipped with a cutter bar clamping device, which includes a cutter bar clamping block groove, a cutter bar clamping block, a clamping block bolt, and a retaining spring II. The cutter bar clamping block groove is n-shaped and has two parallel side walls on the left and right sides and a rear side wall between the two side walls. The cutter bar clamping block groove is radially opened on the side of the cutter bar adjusting groove. The two parallel side walls of the cutter bar clamping block groove form an opening near the cutter bar adjusting groove, and the cutter bar clamping block groove communicates with the cutter bar adjusting groove through the opening. The tool holder pressure block has a through hole, and the bottom of the tool holder pressure block groove has a screw hole. The pressure block bolt passes through the through hole on the tool holder pressure block and extends out of the tool holder pressure block. The protruding part of the pressure block bolt is connected to the screw hole at the bottom of the tool holder pressure block groove. The tool holder pressure block is connected to the tool holder pressure block groove through the pressure block bolt. The rear side of the tool holder pressure block groove is a slope, and the rear side of the tool holder pressure block has the same slope as the rear side of the tool holder pressure block groove. The rear side of the tool holder pressure block abuts against the rear side of the tool holder pressure block groove, and the front side of the tool holder pressure block abuts against the side of the tool holder.

[0010] Furthermore, the tool holder pressure block groove does not penetrate the two end faces of the tool disc, and the tool holder pressure block groove is connected with the tool holder adjustment groove to form a convex-shaped cavity.

[0011] Furthermore, the cutting tool holder includes a main chamfering tool holder, a secondary chamfering tool holder, and a face cutting tool holder, which are axially offset.

[0012] Furthermore, the lengths of the main chamfering tool holder, the secondary chamfering tool holder, and the end face cutting tool holder extending out of the end face of the cutter head decrease sequentially.

[0013] Furthermore, the main chamfering tool holder and the secondary chamfering tool holder are 180° centrally symmetrical about the axis.

[0014] Compared with existing technologies, the advantages of this invention are as follows: By integrating the end-face cutting tool holder, the main chamfering tool holder, and the secondary chamfering tool holder into the same cutter head, this invention achieves end-face machining and chamfering machining in a single clamping and one-step process. Compared to the traditional process that requires two tool changes, this design reduces tool change time and downtime, increasing machining efficiency by more than 30%, making it particularly suitable for mass production scenarios. The radial positions of the main and secondary chamfering tool holders can be finely adjusted using the tool holder adjusting bolts, allowing precise setting of the distance from the cutting edge to the center of the cutter head, thereby directly controlling the depth and angle of the chamfered surface. After adjustment, the tool holder is clamped and fixed by the tool holder pressure block to ensure machining stability. The accuracy of the chamfering dimensions is directly guaranteed by the total length of the workpiece, eliminating the cumbersome "machining-measurement-remachining" process of traditional methods, reducing human error, and improving the pass rate. The main chamfering tool holder is responsible for the first layer of rough machining, the secondary chamfering tool holder performs the second layer of finishing, and the end-face cutting tool holder finally completes the end-face finishing. The layered cutting strategy disperses the load of a single cutting operation, reduces tool wear and thermal stress concentration, and extends tool life by approximately 20%. Simultaneously, the coordinated operation of the three tool holders avoids the risk of chipping caused by single-tool overload. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a top view of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the cutter head structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the cutting tool holder of this utility model;

[0021] Figure 7 This is a schematic diagram of the tool holder clamping device of this utility model;

[0022] Figure 8 This is a schematic diagram of the cutting process of this utility model;

[0023] In the figure, 1-cutter head, 2-mounting slot, 3-fixing hole, 4-cutter bar adjustment slot, 401-bottom of cutter bar adjustment slot, 402-side wall of cutter bar adjustment slot, 5-cutting cutter bar, 501-cutter head, 502-cutting edge, 503-cutter bar retaining groove, 504-protrusion, 6-cutter bar adjustment bolt, 7-circlip I, 8-cutter bar pressure block groove, 801-bottom of cutter bar pressure block groove, 802-side wall of cutter bar pressure block groove, 803-rear side wall of cutter bar pressure block groove, 9-cutter bar pressure block, 901-rear side of cutter bar pressure block, 902-front side of cutter bar pressure block, 10-pressure block bolt, 11-circlip II, 12-main chamfering cutter bar, 13-secondary chamfering cutter bar, 14-end face cutting cutter bar, 15-screw hole, 16-shell hammer head. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, an adjustable integrated machining tool for a boring machine used for machining shell-forming hammerheads includes a tool head 1, which is a cylindrical component. The tool head 1 is provided with a tool holder mounting structure for fixing the tool head 1 to the tool holder of the boring machine. The tool holder mounting structure includes a mounting groove 2 and a fixing hole 3. The mounting groove 2 is opened on the end face of one end of the tool head 1. The mounting groove 2 is straight and opened radially along the tool head 1. The tool head 1 is provided with a fixing hole 3 along its central axis, and the fixing hole 3 penetrates the tool head 1.

[0026] Multiple tool holder adjustment slots 4 are provided on the outer periphery of the cutter head 1. The tool holder adjustment slots 4 are parallel to the central axis of the cutter head 1 and pass through the two end faces of the cutter head 1. They are used to engage cutting tool holders 5 of different lengths. The cross-section of the tool holder adjustment slot 4 is rectangular. An adjustable tool holder is installed in the tool holder adjustment slot 4. The adjustable tool holder includes a cutting tool holder 5, a tool holder adjustment bolt 6, and a retaining spring I 7. A tool holder retaining groove 503 is provided in the middle of the cutting tool holder 5 on the side near the central axis of the cutter head 1. Both ends of the cutting tool holder 5 form protrusions 504. The cutting tool holder 5 forms a C-shaped structure. The two protrusions 504 of the cutting tool holder 5 extend radially towards the central axis of the cutter head 1. The two protrusions 504 on one side of the cutter head 1 are respectively in close contact with the two end faces of the cutter head 1. The tool holder retaining groove 503 is engaged in the tool holder adjustment slot 4. The tool holder retaining groove 503 is adapted to the tool holder adjustment slot 4 to improve the axial stability of the cutting tool holder 5. The bottom 401 of the tool holder adjustment groove has a screw hole 15, and the cutting tool holder 5 has a through hole. The tool holder adjustment bolt 6 passes through the through hole of the cutting tool holder 5 and extends out of the cutting tool holder 5. The tool holder adjustment bolt 6 has a retaining spring, and the tool holder adjustment bolt 6 is connected to the cutting tool holder 5 through the retaining spring 17. The cutting tool holder 5 is engaged in the tool holder adjustment groove 4, and the cutting tool holder 5 is installed in the tool holder adjustment groove 4 through the protruding tool holder adjustment bolt 6. The radial installation position of the cutting tool holder 5 can be adjusted by changing the depth of the tool holder adjustment bolt 6 in the screw hole 15. The left and right side walls of the cutting tool holder 5 always contact the inner side wall of the tool holder adjustment groove 4 to prevent the cutting tool holder 5 from disengaging from the tool holder adjustment groove 4 during use. The cutting tool holder 5 extends from the end face of the cutter head 1 near the mounting groove 2, and from the end away from the mounting groove 2. A cutting head 501 is provided on the end of the cutting tool holder 5 extending from the end face of the cutter head 1. A cutting edge 502 is provided on the side of the cutting head 501 closest to the central axis of the cutter head 1, with the cutting edge 502 facing the central axis of the cutter head 1. The radial position of the cutting tool holder 5 is controlled by the tool holder adjusting bolt 6. When the bolt is rotated, the tool holder moves along the tool holder adjusting groove 4, and the distance from the cutting edge 502 to the central axis of the cutter head 1 changes accordingly, thereby precisely controlling the chamfering depth and angle.

[0027] The cutting tool holder 5 includes a main chamfering tool holder 12, a secondary chamfering tool holder 13, and a face cutting tool holder 14. These three tools are axially staggered, with their lengths extending from one side of the cutter head 1 decreasing sequentially to form a stepped cutting structure. This structure is used to perform roughing, finishing, and face finishing. The main chamfering tool holder 12 and the secondary chamfering tool holder 13 are 180° centrally symmetrical about their axes. The face cutting tool holder 14 is located at the intersection of the perpendicular line connecting the main chamfering tool holder 12 and the secondary chamfering tool holder 13 and the outer periphery of the cutter head 1.

[0028] The cutter head 1 is equipped with a cutter bar clamping device, which includes a cutter bar clamping block groove 8, a cutter bar clamping block 9, a clamping block bolt 10, and a retaining spring II 11. The cutter bar clamping block groove 8 is n-shaped and does not penetrate the two end faces of the cutter head 1. The cutter bar clamping block groove 8 has two parallel side walls on the left and right and a rear side wall between the two side walls. The cutter bar clamping block groove 8 is radially opened on the side of the cutter bar adjusting groove 4. The two parallel side walls form an opening near the side of the cutter bar adjusting groove 4. The cutter bar clamping block groove 8 passes through... The opening communicates with the tool holder adjustment groove 4, and the tool holder pressure block groove 8 communicates with the tool holder adjustment groove 4 to form a convex cavity. The tool holder pressure block 9 has a through hole, and the bottom 801 of the tool holder pressure block groove has a screw hole 15. The pressure block bolt 10 passes through the through hole on the tool holder pressure block 9 and extends out of the tool holder pressure block 9. The protruding part of the pressure block bolt 10 is connected to the screw hole 15 in the bottom 801 of the tool holder pressure block groove. The tool holder pressure block 9 is connected to the tool holder pressure block groove 8 through the pressure block bolt 10. The rear side of the tool holder pressure block groove 8 is a slope, and the width of the tool holder pressure block 9 gradually decreases from top to bottom. The rear side 901 of the tool holder pressure block has the same slope as the rear side of the tool holder pressure block groove 8. The rear side 901 of the tool holder pressure block abuts against the rear side of the tool holder pressure block groove 8, and the front side 902 of the tool holder pressure block abuts against the side of the cutting tool holder 5. The inclined surface design on the rear side of the tool holder pressure block groove 8 and the matching inclined surface of the tool holder pressure block 9 form a wedge-shaped clamping structure. When the pressure block bolt 10 is tightened, the inclined surface generates a radial component force, which presses the cutting tool holder 5 tightly against the side wall 402 of the tool holder adjustment groove, eliminates radial clearance, and fixes the cutting tool holder 5.

[0029] The working principle of this utility model is as follows: Based on the chamfering dimensions of the shell-forming hammer head 16 designed in the drawings, the main chamfering tool 12, the secondary chamfering tool 13, and the end-face cutting tool 14 are installed in sequence. The tool shank adjusting bolts 6 are initially adjusted so that the lengths of the cutting edges 502 of the main chamfering tool 12, the secondary chamfering tool 13, and the end-face cutting tool 14 relative to the center radial direction of the cutter head 1 meet the turning requirements of the shell-forming hammer head 16. The main chamfering tool 12 extends the longest at the end face of the cutter head 1 and is responsible for the first layer of chamfering. The secondary chamfering tool 13 extends a shorter length at the end face of the cutter head 1 than the main chamfering tool 12, and the length of the cutting edge 502 of the secondary chamfering tool 13 relative to the center radial direction of the cutter head 1 is less than that of the main chamfering tool 12, and is responsible for the second layer of chamfering. The end-face cutting tool 14 extends a shorter length at the end face of the cutter head 1 than the secondary chamfering tool 13, and is responsible for the second layer of chamfering. After the required chamfering diameter is achieved, the top end face of the shell-forming hammer head 16 is machined. After initial adjustment, install the tool holder clamping device and rotate the clamping bolt 10 so that the front side 902 of the tool holder clamping block abuts against one side of the cutting tool holder 5, and the other side of the cutting tool holder 5 abuts against the side wall 402 of the tool holder adjusting groove, thus fixing the position of the cutting tool holder 5. Then, after installing the tool disc 1 onto the boring machine tool holder, perform chamfering and end face machining on the shell-breaking hammer head 16. The main chamfering tool holder 12 enters the cutting first. When the cutting edge 502 of the main chamfering tool holder 12 is fully inside the hammer rod, the tip of the secondary chamfering tool holder 13 simultaneously follows into the inclined surface of the hammer rod. The main chamfering tool holder 12 and the secondary chamfering tool holder 13 participate in the cutting at the same time. When the main chamfering tool holder 12 and the secondary chamfering tool holder 13 cut to the length of the inclined surface required by the hammer rod drawing, the end face cutting tool holder 14 begins to cut the end face of the hammer rod. At this time, the main chamfering tool holder 12, the secondary chamfering tool holder 13, and the end face cutting tool holder 14 participate in the cutting at the same time until the dimensions required by the hammer rod drawing are machined, and then the tool holder 1 is withdrawn. The chamfering and end face machining of the hammer rod are completed.

[0030] This invention addresses the problems of low efficiency and difficulty in precision control associated with the step-by-step tool changes required in traditional boring machine machining of aluminum electrolytic hammerheads 16. It proposes an innovative adjustable integrated machining tool. The end-face cutting tool 14 and the main and secondary chamfering tool 13 are axially offset, forming a stepped cutting structure. This allows for end-face and chamfering machining to be completed in a single setup, reducing tool change time. The tool shank adjusting bolt 6, in conjunction with the tool shank clamping device, enables fine-tuning of the cutting tool shank 5 position. Combined with the inclined plane clamping device, radial movement is eliminated, ensuring consistent machining dimensions. Practical application shows that this tool significantly improves machining efficiency and finished product yield in the mass production of aluminum electrolytic hammerheads 16, while simultaneously reducing the intensity of manual intervention.

Claims

1. An adjustable integrated machining tool for boring machine for processing a crust breaking hammer head, characterized in that, Includes a cutter head (1), which is a cylindrical component. The cutter head (1) is provided with a tool holder mounting structure, which includes a mounting groove (2) and a fixing hole (3). The mounting groove (2) is opened on the end face of one end of the cutter head (1) and is opened radially along the cutter head (1). The cutter head (1) is provided with a fixing hole (3) along the central axis and the fixing hole (3) penetrates the cutter head (1). Multiple tool bar adjustment grooves (4) are provided on the outer periphery of the cutter head (1). An adjustable tool bar is installed in the tool bar adjustment groove (4). The adjustable tool bar includes a cutting tool bar (5), a tool bar adjustment bolt (6), and a retaining spring I (7). A screw hole (15) is provided at the bottom (401) of the tool bar adjustment groove. The cutting tool holder (5) has a through hole, and the tool holder adjusting bolt (6) passes through the through hole of the cutting tool holder (5). The tool holder adjusting bolt (6) extends out of the cutting tool holder (5), and the cutting tool holder (5) is engaged in the tool holder adjusting groove (4). The cutting tool holder (5) is installed in the tool holder adjusting groove (4) through the tool holder adjusting bolt (6). The end of the cutting tool holder (5) away from the mounting groove (2) extends out of the end face of the cutter disc (1). The end of the cutting tool holder (5) extending out of the end face of the cutter disc (1) is provided with a cutting head (501). The tip of the cutting head (501) faces the central axis of the cutter disc (1). The cutting edge (502) is provided on the side of the cutting head (501) close to the central axis of the cutter disc (1).

2. The adjustable integrated machining tool for boring machine for processing the hammer head of crust breaking according to claim 1, characterized in that, The tool holder adjusting bolt (6) is provided with a retaining ring I (7), and the tool holder adjusting bolt (6) is connected to the cutting tool holder (5) through the retaining ring I (7).

3. The adjustable one-piece tool for boring a crust buster hammer head for a boring machine of claim 1 wherein, The tool bar adjustment groove (4) is parallel to the central axis of the cutter head (1). The tool bar adjustment groove (4) passes through the two end faces of the cutter head (1). The cutting tool bar (5) extends out of the end face of the cutter head (1) near the mounting groove (2). A tool bar retaining groove (503) is provided on the side of the cutting tool bar (5) near the central axis of the cutter head (1). The two ends of the cutting tool bar (5) form protrusions (504). The cutting tool bar (5) has a C-shaped structure. The two protrusions (504) of the cutting tool bar (5) extend toward the central axis of the cutter head (1). The two protrusions (504) are respectively attached to the two end faces of the cutter head (1) on the side facing the tool bar retaining groove (503). The tool bar retaining groove (503) is engaged in the tool bar adjustment groove (4). The tool bar retaining groove (503) is compatible with the tool bar adjustment groove (4).

4. The adjustable integrated machining tool for boring machine for processing the hammer head of crust breaking according to claim 1, characterized in that, The cross-section of the tool bar adjusting groove (4) is rectangular.

5. The adjustable one-piece tool for boring a crust buster hammer head for a boring machine of claim 1 wherein, The cutter head (1) is provided with a cutter bar clamping device, which includes a cutter bar clamping block groove (8), a cutter bar clamping block (9), a clamping block bolt (10), and a retaining spring II (11). The cutter bar clamping block groove (8) is n-shaped and has two parallel side walls on the left and right and a rear side wall between the two side walls. The cutter bar clamping block groove (8) is radially opened on the side of the cutter bar adjusting groove (4). The two parallel side walls form an opening near the side of the cutter bar adjusting groove (4). The cutter bar clamping block groove (8) communicates with the cutter bar adjusting groove (4) through the opening. The cutter bar clamping block (9) is provided with a through hole, and the bottom (801) of the cutter bar clamping block groove is provided with a screw hole ( 15) The pressure block bolt (10) passes through the through hole on the tool bar pressure block (9) and the pressure block bolt (10) extends out of the tool bar pressure block (9). The pressure block bolt (10) is connected to the screw hole (15) at the bottom (801) of the tool bar pressure block groove through the extended part. The tool bar pressure block (9) is connected to the tool bar pressure block groove (8) through the pressure block bolt (10). The rear side of the tool bar pressure block groove (8) is a slope. The rear side (901) of the tool bar pressure block has the same slope as the rear side of the tool bar pressure block groove (8). The rear side (901) of the tool bar pressure block is abutted against the rear side of the tool bar pressure block groove (8). The front side (902) of the tool bar pressure block is abutted against the side of the tool bar.

6. The adjustable one-piece tool for boring a crust buster hammer head for a boring machine of claim 5 wherein, The tool bar pressing groove (8) does not penetrate the two end faces of the tool disc (1), and the tool bar pressing groove (8) is connected with the tool bar adjusting groove (4) to form a convex cavity.

7. The adjustable one-piece tool for boring a crust buster hammer head for a boring machine of claim 1 wherein, The cutting tool holder (5) includes a main chamfering tool holder (12), a secondary chamfering tool holder (13), and an end face cutting tool holder (14), which are installed axially offset from each other.

8. The adjustable one-piece tool for boring a crust buster hammer head for a boring machine of claim 7, wherein, The lengths of the main chamfering tool bar (12), the secondary chamfering tool bar (13), and the end face cutting tool bar (14) extending out of the end face of the cutter head (1) decrease sequentially.

9. The adjustable one-piece tool for boring a crust buster hammer head for use in a boring machine of claim 7 wherein, The main chamfering tool holder (12) and the secondary chamfering tool holder (13) are 180° centrally symmetrical about the axis.

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