Adjustable assembly type machining combined cutting tool

Abstract

The utility model discloses an adjustable assembly type machining combined cutting tool which is characterized in that the section of a tool rest body is in an inverted right-angle step shape, a pressing screw hole and a top unloading blind hole are formed in a boss surface above a bevel edge at one end of the tool rest body side by side, a hook-shaped groove is connected with a V-shaped edge at the lower edge of an inverted trapezoidal tool pad, and trapezoidal raised lines are arranged at the upper edges of the two ends of the tool pad; an upper pressing plate is installed above the shim, a pressing block is installed on the tool rest body, an eccentric screw rod is installed in an adjusting screw hole in the tool rest body, a clamping screw rod is installed in a clamping screw hole, and a blade is clamped between a shallow groove of the upper pressing plate and a trapezoidal protruding strip at one end of the shim. According to the utility model, by utilizing the engineering mechanics triangle and lever principle, all structural parts are combined into a whole, so that the cutting force is dispersed to each part, and the cutting depth is improved. The consumption of cutters is reduced, the production cost is saved, the manufacturing cost is low, and the device is worthy of popularization and application.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing frock equipment, especially a kind of adjustable assembly type machine tooling combined cutting tool. BACKGROUND

[0002] The machine clamp cutoff tool is a cutoff tool with replaceable blade.Compared with the traditional integral cutoff tool, the blade of the machine clamp cutoff tool is fixed on the cutter body by mechanical clamping.In practical application, the machine clamp cutoff tool is often used for cutting off bar stock, pipe and other materials in turning machining.The machine clamp cutoff tool for high-speed cutting on the market is divided into two types:one is fixed machine clamp cutoff tool rod, generally cutting diameter is about 40mm, when cutting depth is limited, it is necessary to purchase extended machine clamp cutoff tool, and the diameter can reach 80mm;the other is cutting tool holder tool with adjustable cutting depth, and the cutting depth limit diameter is about 120mm.So far, the machine clamp cutoff tool rod is widely used in mechanical manufacturing industry (especially on numerical control lathe), and the machine clamp cutoff tool rod is still the king of cutoff tool in the mechanical manufacturing industry.The advantage is that it meets the depth limitation of ordinary cutoff tool and extended cutoff tool.However, the cutting tool holder tool with adjustable cutting depth and the two cutting tool rods mentioned above have the same limitation that the blade mounting position cannot be adjusted.In actual production process, due to various processing conditions, such as:loose workpiece clamping, increased resistance due to severe tool wear, loose blade clamping, excessive feed, workpiece loosening due to vibration during cutting, machine tool head gap, machine tool power failure or off-track during cutting, tool center height is too high or too low, etc., the collision (also called tool damage) between workpiece and tool often occurs in mechanical manufacturing industry.Each time the tool rod is damaged, the tool rod is damaged, and the position of the blade is deformed, which makes the actual position of the blade smaller.If the impact of the tool damage is greater, the position of the blade held by the tool rod will become smaller, and even the tool rod will be scrapped.This is because the position of the blade is fixed, and the tool rod is basically scrapped after several tool damages or a heavy impact.Even if the tool damage is not serious, as long as the tool is damaged, the operator will be nervous and cautious when using the tool.Meanwhile, due to the gap in the position of the blade, the cutting resistance is on the blade edge, and the force cannot be decomposed, which is more harmful than the previous tool damage.Finally, it is necessary to replace the new tool again, which greatly increases the outsourcing cost. SUMMARY

[0003] The utility model provides a machine adds cutting tool, and the adjustable of tool is realized through the assembly type combined structure, thereby compatible with the cutting depth of all cutting tools at present, realizes the processing cutting of large diameter work piece, reduces tool consumption and improves the utilization of tool.

[0004] The utility model discloses a kind of adjustable assembly type machine adds combined cutting tool, including tool holder body and pressure block, the tool holder body section is inverted straight angle ladder shape, its upper surface is provided with upper clamping groove, the side wall outer lower end of lower clamping groove of its lower surface is provided with hook groove, the upper convex surface of tool holder body one end bevel is provided with pressure screw hole and top unloading blind hole side by side, pressure screw hole and top unloading blind hole are provided with clamping screw hole transversely below, first adjusting screw hole is transversely provided with in the lower of upper clamping groove section;Hook groove is connected with the V-shaped edge of inverted trapezoidal tool pad lower side, trapezoidal convex strip is provided with in tool pad two ends upper edge, trapezoidal convex strip is connected with the concave groove of tool blade lower edge correspondingly;Tool pad upper surface is provided with upper pressure plate, one end of upper pressure plate is provided with bevel, the lower surface of the other end of upper pressure plate is provided with protruding block, the upper edge of the one end of bevel is provided with rack;The lower end of one end of pressure block is protruding and is provided with pressure tooth, pressure block is provided with bolt hole and second adjusting screw hole side by side;Pressure block is installed on the upper surface of tool holder body, bolt hole corresponds with pressure screw hole and is connected by bolt;Second adjusting screw hole corresponds with top unloading blind hole, and adjusting screw is installed in second adjusting screw hole;The rack of the upper surface of pressure block corresponds with the pressure tooth of pressure block;Eccentric screw is installed in the first adjusting screw hole on tool holder body, eccentric block set on the end of eccentric screw and the protruding block of the lower end of upper pressure plate press on the upper edge of tool pad;Clamping screw rod is installed in clamping screw hole, tool holder body is connected with tool pad and upper pressure plate outer side clamping nut respectively by the end of clamping screw rod through the deep recess of upper pressure plate, and blade is clamped between the trapezoidal convex strip of one end of tool pad and the shallow recess of upper pressure plate.

[0005] Further, the central axis of the clamping screw rod is perpendicular to the tool holder body.

[0006] Further, the central axis of the eccentric screw is perpendicular to the tool holder body.

[0007] Further, the inner included angle β of the hook groove is 45°.

[0008] Further, the two included angle edges of the V-shaped edge are 90°.

[0009] The utility model utilizes engineering mechanics triangle and lever principle, and each structural member is made into a whole, so that cutting force is dispersed to each component, and cutting depth is improved. The utility model reduces tool consumption, saves production cost, has low manufacturing cost, and is worth popularizing and applying. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is the overall structure of the main view of the utility model;

[0011] Figure 2 is Figure 1 the A direction structure schematic view of the utility model;

[0012] Figure 3 is the top view of the utility model;

[0013] Figure 4 is the main view of the utility model in the tool holder body 1;

[0014] Figure 5 is Figure 4 the B direction structure schematic view of the utility model;

[0015] Figure 6 is the top view of the utility model in the tool holder body 1;

[0016] Figure 7 is the main view of the utility model in the tool pad 2;

[0017] Figure 8 is Figure 7 the C direction enlarged structure schematic view of the utility model;

[0018] Figure 9 is the installation structure schematic view of the utility model in the tool holder body 1, tool pad 2 and blade 3;

[0019] Figure 10 is the plane structure schematic view of the utility model in the upper pressing plate 4;

[0020] Figure 11 is the structure schematic view of the utility model in the pressing block 5;

[0021] Figure 12 is Figure 11 the D-D direction section structure schematic view of the utility model;

[0022] Figure 13 is the schematic view of the eccentric screw 8 in the utility model.

[0023] In the drawing: 1-tool holder, 11-upper clamping groove, 12-hook-shaped groove, 13-clamping screw hole, 14-first adjusting screw hole, 15-pressing screw hole, 16-top unloading blind hole, 17-lower clamping groove;2-tool pad, 21-trapezoidal convex strip, 22-V-shaped edge;3-blade;4-upper pressing plate, 41-bevel, 42-rack, 43-shallow groove, 44-deep groove, 45-boss;5-pressing block, 51-pressing tooth, 52-bolt hole, 53-second adjusting screw hole;6-clamping screw;7-clamping nut;8-eccentric screw, 81-eccentric block;9-adjusting screw;10-bolt. DETAILED DESCRIPTION

[0024] The utility model is further described below in combination with the drawings and examples. Refer to Figures 1 to 13 An adjustable assembled machine tool combined cutting tool, comprising a tool holder body 1 and a pressing block 5, characterized in that the tool holder body 1 is in the shape of an inverted straight-angle stepped shape, the upper surface of which is provided with an upper clamping groove 11, the outer lower end of the side wall of a lower clamping groove 17 is provided with a hook-shaped groove 12 (as shown in Figure 1 and Figure 2 ), the inner angle β of the hook-shaped groove 12 is 45° (as shown in Figure 5 ), and the upper end of the oblique edge of one end of the tool holder body 1 is provided with a pressing screw hole 15 and a top-unloading blind hole 16 side by side, the lower end of the pressing screw hole 15 and the top-unloading blind hole 16 is provided with a clamping screw hole 13 transversely (as shown in Figure 2 ), and the lower end of the upper clamping groove 11 is provided with a first adjusting screw hole 14 transversely (as shown in Figure 1 ); the hook-shaped groove 12 is connected with the V-shaped edge 22 of the inverted trapezoidal tool pad 2, and the cross-sectional angle α of the two clamping edge sides of the V-shaped edge 22 is 90°. The upper edge of both ends of the tool pad 2 is provided with a trapezoidal convex strip 21 (as shown in Figure 8 ), and the trapezoidal convex strip 21 is connected with the concave groove of the lower edge of the tool piece 3 in correspondence (as shown in Figure 9 ); the upper end of the tool pad 2 is provided with an upper pressing plate 4, one end of the upper pressing plate 4 is provided with an oblique edge 41, the lower end of the oblique edge 41 is provided with a shallow groove 43, the inner end of the shallow groove 43 is provided with a deep groove 44, the lower end of the other end of the upper pressing plate 4 is provided with a convex block 45, and the upper edge of the end of the oblique edge 41 is provided with a rack 42 (as shown in Figure 10 ); one end of the pressing block 5 is provided with a pressing tooth 51, and the pressing block 5 is provided with a bolt hole 52 and a second adjusting screw hole 53 side by side (as shown in Figure 11 and Figure 12 ); the pressing block 5 is installed on the upper surface of the tool holder body 1, the bolt hole 52 corresponds to the pressing screw hole 15 and is connected through a bolt 10 (as shown in Figure 1 and Figure 2 ); the second adjusting screw hole 53 corresponds to the top-unloading blind hole 16, and the second adjusting screw hole 53 is provided with an adjusting screw 9 (as shown in Figure 2 , Figure 3 and Figure 12 ); the pressing tooth 51 of the pressing block 5 is connected with the rack 42 on the upper surface of the upper pressing plate 4 in correspondence (as shown in Figure 1 , Figure 10 and Figure 11 ); the first adjusting screw hole 14 on the tool holder body 1 is provided with an eccentric screw 8, and the central axis of the eccentric screw 8 is perpendicular to the tool holder body 1. The eccentric block 81 provided at the end of the eccentric screw 8 and the convex block 45 at the lower end of the upper pressing plate 4 press the upper edge of the tool pad 2 (as shown in Figure 1 and Figure 3The clamping screw hole 13 is provided with a clamping screw rod 6, and the central axis of the clamping screw rod 6 is perpendicular to the tool holder body 1. The tool holder body 1 is connected with the tool pad 2 and the outer side of the upper pressing plate 4 through the clamping screw rod 6 and a clamping nut 7 (as shown in Figure 1 、 Figure 2 and Figure 5 ). The shallow recess 43 of the upper pressing plate 4 is clamped between the trapezoidal protrusions 21 at one end of the tool pad 2 (as shown in Figure 1 、 Figure 2 and Figure 3 ).

[0025] The adjustable assembly type machining combined cutting tool comprises a tool holder body 1, a tool pad 2, an upper pressing plate 4 and a pressing block 5. The tool pad 2 is arranged on one side of the tool holder body 1. The V-shaped edge 22 at the lower edge of the tool pad 2 is matched with the clamping edge of the hook-shaped groove 12 at the lower part of the tool holder body 1, and the hook-shaped groove 12 supports the tool pad 2. The trapezoidal protrusions 21 at the front end of the tool pad 2 are provided with the tool blade 3. The tool blade 3 is clamped through the shallow recess 43 of the upper pressing plate 4, and the rack 42 of the upper pressing plate 4 is pressed through the pressure tooth 51 of the pressing block 5. The first adjusting screw hole 14 is arranged on the tool holder body 1, and the eccentric screw rod 8 is arranged in the first adjusting screw hole 14. The eccentric block 81 at the end of the eccentric screw rod 8 is used for pressing the rear end of the tool pad 2. The clamping nut 7 is arranged on the clamping screw rod 6 at one side of the tool pad 2, and the tool pad 2 is clamped through the clamping nut 7 at the outer side of the tool pad 2, so that the stable installation of the tool pad 2 and the tool blade 3 is ensured. When the tool pad 2 and the tool blade 3 need to be adjusted, the pressing block 5 and the clamping nut 7 are appropriately loosened, the eccentric block 81 of the eccentric screw rod 8 is loosened, the tool pad 2 is moved forward and backward, the appropriate position of the tool blade 3 is adjusted, the pressing block 5, the clamping nut 7 and the eccentric screw rod 8 are clamped in sequence, and then the machine tool is assembled and used for cutting.

[0026] In use, if the tool is damaged, the tool pad 2 is moved forward at the original installation position, and the gap of the tool blade 3 is eliminated. Compared with the prior art, the tool blade of the tool bar on the market is fixed, the cutting depth is not more than 120 mm in diameter, and the cutting depth is limited. Taking a 4 mm cutter blade as an example, the cutting depth of the combined cutting tool is greater than 130 mm. The machining performance is improved, and the cost of purchasing tools by enterprises is reduced.

Claims

1. An adjustable modular machine assembly combination cutting tool comprising a tool holder body (1) and a pressure block (5), characterized in that, The tool holder body (1) is inverted straight ladder-shaped in cross section, the upper surface of which is provided with an upper clamping groove (11), the outer lower end of the side wall of the lower clamping groove (17) is provided with a hook-shaped groove (12), the upper end of the oblique edge of one end of the tool holder body (1) is provided with a pressing screw hole (15) and a top unloading blind hole (16) side by side, the lower side of the pressing screw hole (15) and the top unloading blind hole (16) is transversely provided with a clamping screw hole (13), and the lower side of the middle section of the upper clamping groove (11) is transversely provided with a first adjusting screw hole (14); the hook-shaped groove (12) is connected with the lower V-shaped edge (22) of the inverted ladder-shaped tool pad (2), the upper edge of the two ends of the tool pad (2) is provided with a ladder-shaped convex strip (21), and the ladder-shaped convex strip (21) is correspondingly connected with the concave groove of the lower edge of the tool blade (3); the upper pressing plate (4) is installed on the upper side of the tool pad (2), one end of the upper pressing plate (4) is provided with an oblique edge (41), the lower side of the oblique edge (41) is provided with a shallow groove (43), and the inner end of the shallow groove (43) is provided with a deep groove (44); the lower side of the other end of the upper pressing plate (4) is provided with a convex block (45), and the upper side of the end of the oblique edge (41) is provided with a rack (42); the pressing block (5) is provided with a pressing tooth (51) on the lower side of one end, and the pressing block (5) is provided with a bolt hole (52) and a second adjusting screw hole (53) side by side; the pressing block (5) is installed on the upper side of the tool holder body (1), the bolt hole (52) corresponds to the pressing screw hole (15) and is connected through a bolt (10); the second adjusting screw hole (53) corresponds to the top unloading blind hole (16), and the second adjusting screw hole (53) is provided with an adjusting screw (9) installed therein; the pressing tooth (51) of the pressing block (5) is correspondingly connected with the rack (42) on the upper side of the upper pressing plate (4); the first adjusting screw hole (14) on the tool holder body (1) is provided with an eccentric screw rod (8), the eccentric block (81) provided at the end of the eccentric screw rod (8) and the convex block (45) at the lower end of the upper pressing plate (4) are pressed on the upper edge of the tool pad (2); the clamping screw rod (6) is installed in the clamping screw hole (13), and the tool holder body (1) is connected with the clamping nut (7) outside the tool pad (2) and the upper pressing plate (4) through the end of the clamping screw rod (6) penetrating through the deep groove (44) of the upper pressing plate (4) respectively, and the tool blade (3) is clamped between the shallow groove (43) of the upper pressing plate (4) and the ladder-shaped convex strip (21) at one end of the tool pad (2).

2. The adjustable modular machine complex cutting tool according to claim 1, wherein, The central axis of the clamping screw rod (6) is perpendicular to the tool holder body (1).

3. The adjustable modular machine complex cutting tool according to claim 1, wherein, The central axis of the eccentric screw rod (8) is perpendicular to the tool holder body (1).

4. The adjustable modular machine complex cutting tool according to claim 1, wherein, The inner included angle β of the hook-shaped groove (12) is 45°.

5. The adjustable modular machine complex cutting tool according to claim 1, wherein, The two included angle edges of the V-shaped edge (22) are 90° in cross section.

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