A blind hole chip breaking tool

Abstract

The utility model relates to the technical field of machining tools, and discloses a blind hole chip breaking machining tool, including a tool storage bin, wherein a plunge milling cutter assembly, a universal boring cutter assembly and a cold high-pressure water spray assembly are arranged in the tool storage bin, and the bottom ends of the plunge milling cutter assembly, the universal boring cutter assembly and the cold high-pressure water spray assembly all pass through the limiting hole and are inserted into the tool fixing assembly. The utility model arranges the plunge milling cutter assembly, the universal boring cutter assembly and the cold high-pressure water spray assembly in the tool storage bin, and iron chips are basically discharged along with the water flow sprayed by the cold high-pressure water spray assembly, thereby greatly improving the working efficiency of drilling holes. At the same time, the use scope of the tool is expanded, the cost is low, cost is reduced and efficiency is increased, and at the same time, the quality of the product, the machining efficiency, and the environmental safety are greatly improved. The utility model is suitable for conventional machining and flexible automated machining, and the qualified rate of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining tools, in particular to a blind hole chip breaking machining tool. Background Art

[0002] Among the mechanically processed products in the petroleum industry, valve cavity processing is widely involved. Due to the various hole depths and diameters, as well as too many types of processing materials, it is easy to cause continuous chips and poor chip removal during the boring process, resulting in poor quality and low batch processing efficiency, which greatly increases the production cost and is not conducive to batch production. At the same time, it also increases the safety risks and labor intensity of operators, affecting the product qualification rate.

[0003] In view of this, a tool that changes the method of efficient boring and chip breaking processing is designed to reduce work intensity and improve production efficiency and product qualification rate. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a blind hole chip breaking processing tool, which solves the problem of valve cavity processing involved in a wide range of mechanical processing products in the petroleum industry. Due to the various hole cavity depths and diameters, as well as too many types of processing materials, it is easy to cause the boring process to often occur due to chip breaking and poor chip removal, resulting in poor quality and low batch processing efficiency, which greatly increases the production cost and is not conducive to batch production. At the same time, it also increases the safety risks and labor intensity of operators, affecting the product qualification rate.

[0005] The utility model provides the following technical solutions: a blind hole chip breaking processing tool, comprising a tool storage bin, a top closing cover is arranged at the top of the tool storage bin, three tool fixing assemblies are evenly arranged at the bottom of the tool storage bin, a top limiting plate is arranged at the top of the tool storage bin, three limiting holes are evenly opened on the top limiting plate, a milling cutter assembly, a universal boring cutter assembly and a cold high-pressure water spray assembly are arranged in the tool storage bin, and the bottom ends of the milling cutter assembly, the universal boring cutter assembly and the cold high-pressure water spray assembly are all inserted into the tool fixing assembly through the limiting holes;

[0006] The plunge milling cutter assembly comprises a first cutter bar, a square shoulder cutter is arranged at the top end of the first cutter bar, and a first clamping rod is arranged at the bottom end of the first cutter bar;

[0007] The universal boring tool assembly comprises a second tool bar, a double-edged boring tool is arranged at the top end of the second tool bar, and a second clamping rod is arranged at the bottom end of the second tool bar;

[0008] The cold high-pressure water spray assembly comprises an inner spray knife rod, the top end of the side wall of the inner spray knife rod is provided with two water spray holes, and the bottom end of the inner spray knife rod is provided with a third clamping rod.

[0009] Preferred technical solution 1: The tool fixing assembly includes a fixed base arranged at the bottom of the tool storage bin, a limiting slot is provided at the top of the fixed base, two inner wall grooves are symmetrically provided on both sides of the inner wall of the limiting slot, and two side contact plates are provided in the inner wall groove.

[0010] Preferred technical solution two: the inner wall of the inner wall groove is symmetrically provided with two sliding grooves, the side of the side contact plate is vertically provided with two sliding rods, the ends of the sliding rods are slidably inserted into the sliding grooves, a resistance spring is sleeved on the sliding rod, one end of the resistance spring is connected to the side contact plate, and the other end of the resistance spring is connected to the inner wall of the inner wall groove.

[0011] Preferred technical solution three: the diameter of the limiting hole is larger than the diameter of the bottom end of the plunge milling cutter assembly, the universal boring cutter assembly and the cold high-pressure water spray assembly.

[0012] This solution enables the plunge milling cutter assembly, the universal boring cutter assembly and the cold high-pressure water spray assembly to be smoothly inserted into the tool storage bin, while the middle parts thereof are limited by the limiting holes.

[0013] Preferred technical solution four: the inner side walls of the side contact plates are all provided with anti-scratch pads.

[0014] This solution can better limit and fix the bottom ends of the plunge milling cutter assembly, the universal boring cutter assembly and the cold high-pressure water spray assembly when the side contact plate is elastically supported by the contact spring.

[0015] Preferred technical solution five: A rubber pad is provided at the bottom end of the limiting slot, and the top diameter of the limiting slot is larger than the bottom diameter.

[0016] This solution enables the bottom ends of the plunge milling cutter assembly, the universal boring cutter assembly and the cold high-pressure water spray assembly to be more conveniently inserted into the limiting slot, and the bottoms thereof are protected by the provided rubber pads.

[0017] Compared with the prior art, the utility model provides a blind hole chip breaking tool, which has the following beneficial effects:

[0018] The utility model arranges a plunge milling cutter assembly, a universal boring cutter assembly and a cold high-pressure water spray assembly in a tool storage bin. When processing a mechanical workpiece, the user can respectively fix the plunge milling cutter assembly, the universal boring cutter assembly and the cold high-pressure water spray assembly on the tool disc of the lathe. By changing the processing method and modifying the tool, the working method can be optimized in terms of structural design. Through different processing forms, the chip breaking effect of boring holes is very good. The iron chips are basically discharged with the water flow sprayed by the cold high-pressure water spray assembly. After the boring is completed, there is no iron chips adhering to the inside of the hole and on the tool. The processing quality is greatly improved, thereby greatly improving the working efficiency of drilling. At the same time, the use scope of the tool is expanded, the cost is low, the cost is reduced and the efficiency is increased. At the same time, the quality of the product and the processing efficiency can be improved, and the environmental safety is also greatly improved. It is suitable for conventional processing and flexible automated processing, and the qualified rate of the product is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main cross-section of the structure of the utility model;

[0020] Figure 2 For the utility model Figure 1 An enlarged view of the structure of the tool fixing assembly;

[0021] Figure 3 For the utility model Figure 1 A schematic diagram of the structure of the plunge milling cutter assembly;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the structure of the general boring tool assembly;

[0023] Figure 5 For the utility model Figure 1 Schematic diagram of the structure of the intercooler high-pressure water spray assembly.

[0024] In the figure:

[0025] 1. Tool storage bin; 2. Top closing cover; 3. Tool fixing assembly; 4. Top limit plate; 5. Limit hole; 6. Milling cutter assembly; 7. Universal boring cutter assembly; 8. Cold high-pressure water spray assembly;

[0026] 301, fixed base; 302, limit slot; 303, inner wall groove; 304, side contact plate; 305, sliding slot; 306, slide rod; 307, contact spring;

[0027] 601, first tool bar; 602, square shoulder tool; 603, first clamping bar;

[0028] 701, second tool bar; 702, double-edged boring tool; 703, second clamping rod;

[0029] 801, inner spray knife rod; 802, water spray hole; 803, third clamping rod. DETAILED DESCRIPTION

[0030] See also Figure 1-5

[0031] Embodiment 1: A blind hole chip breaking processing tool comprises a tool storage bin 1, a top closing cover 2 is arranged at the top of the tool storage bin 1, three tool fixing assemblies 3 are evenly arranged at the bottom end of the tool storage bin 1, a top limiting plate 4 is arranged at the top of the tool storage bin 1, three limiting holes 5 are evenly opened on the top limiting plate 4, a milling cutter assembly 6, a universal boring cutter assembly 7 and a cold high-pressure water spray assembly 8 are arranged in the tool storage bin 1, and the bottom ends of the milling cutter assembly 6, the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8 are all inserted into the tool fixing assembly 3 through the limiting holes 5.

[0032] The tool fixing assembly 3 includes a fixed base 301 arranged at the bottom of the tool storage bin 1, a limiting slot 302 is provided at the top of the fixed base 301, two inner wall grooves 303 are symmetrically provided on both sides of the inner wall of the limiting slot 302, two side contact plates 304 are provided in the inner wall groove 303, and two sliding grooves 305 are symmetrically provided on the inner wall of the inner wall groove 303.

[0033] Two sliding rods 306 are vertically arranged on the side of the side contact plate 304, and the ends of the sliding rods 306 are slidably inserted into the sliding groove 305. A contact spring 307 is sleeved on the sliding rod 306, one end of the contact spring 307 is connected to the side contact plate 304, and the other end of the contact spring 307 is connected to the inner wall of the inner wall groove 303.

[0034] The plunge milling cutter assembly 6 comprises a first cutter bar 601 , a square shoulder cutter 602 is arranged at the top end of the first cutter bar 601 , and a first clamping rod 603 is arranged at the bottom end of the first cutter bar 601 .

[0035] The universal boring tool assembly 7 comprises a second tool bar 701 , a double-edged boring tool 702 is arranged at the top end of the second tool bar 701 , and a second clamping rod 703 is arranged at the bottom end of the second tool bar 701 .

[0036] The cold high-pressure water spray assembly 8 comprises an inner spray knife rod 801 , the top end of the side wall of the inner spray knife rod 801 is provided with two water spray holes 802 , and the bottom end of the inner spray knife rod 801 is provided with a third clamping rod 803 .

[0037] Embodiment 2: The difference between this embodiment and embodiment 1 is that the diameter of the limiting hole 5 is larger than the diameter of the bottom end of the plunge milling cutter assembly 6, the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8.

[0038] The plunge milling cutter assembly 6 , the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8 can be smoothly inserted into the tool storage bin 1 , and the limiting hole 5 limits the middle thereof.

[0039] Embodiment 3: The difference between this embodiment and embodiment 1 is that the inner side walls of the side contact plate 304 are provided with anti-scratch pads.

[0040] When the side contact plate 304 is elastically supported by the contact spring 307 , the bottom ends of the plunge milling cutter assembly 6 , the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8 can be better limited and fixed.

[0041] Embodiment 4: The difference between this embodiment and embodiment 1 is that a rubber pad is provided at the bottom end of the limiting slot 302, and the top diameter of the limiting slot 302 is larger than the bottom diameter.

[0042] The bottom ends of the plunge milling cutter assembly 6, the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8 can be more conveniently inserted into the limiting slot 302, and the bottoms thereof are protected by the provided rubber pads.

[0043] In this embodiment, due to the large-scale valve cavity processing involved in the mechanical processing products of the petroleum industry, due to the various types of cavity depths and diameters, as well as too many types of processing materials, it is easy to cause continuous chips and poor chip removal during the boring process, resulting in poor quality and low batch processing efficiency, which greatly increases the production cost and is not conducive to mass production. At the same time, it also increases the safety risks and labor intensity of operators, affecting the product qualification rate.

[0044] In summary, in specific implementation, when the user needs to process mechanical products in the petroleum industry, the user can assemble the plunge milling cutter assembly 6, the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8 on the lathe respectively, and by clamping the first clamping rod 603 in the plunge milling cutter assembly 6 onto the cutter disc, the square shoulder tool 602 at the end of the first tool rod 601 is used to plunge mill the side wall of the hole on the workpiece, so that the hole diameter can leave a single-side margin of 0.03MM-0.06MM from the fine processing size, and the position distribution of the plunge milling cutter assembly 6 is evenly distributed in a M shape around the center of the processing hole, and the number of plunge milling cutters is controlled from 8 quadrants to 12 quadrants according to the size of the hole diameter, and the plunge milling depth dimension shall not be lower than the required depth of the boring hole.

[0045] As for the application of the universal boring tool assembly 7, the second clamping rod 703 in the universal boring tool assembly 7 is fixed on the tool disc, so that the double-edged boring tool 702 on the second tool rod 701 can process the workpiece, and the parameters of the normal linear speed of boring and the feed boring to the bottom of the hole, the spindle positioning retraction shall not be less than 0.3MM.

[0046] The application of the cold high-pressure water spray assembly 8 also fixes the third clamping rod 803 on the cutter disc, so that the inner spray cutter rod 801 rotates quickly into the processing hole without water spraying, and the depth is about 10 mm higher than the bottom of the hole. When the water spraying is turned on, it rotates slowly back to the outside of the hole, thereby flushing the broken chips in the processing hole.

[0047] The limiting slot 302 in the tool fixing assembly 3 can limit the bottom end of the milling cutter assembly 6, the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8, and the side contact plate 304 arranged inside the limiting slot 302 can contact the bottom side of the milling cutter assembly 6, the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8 through the rebound force of the contact spring 307, ensuring that the milling cutter assembly 6, the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8 are stably placed in the tool storage bin 1, and the middle part of the milling cutter assembly 6, the universal boring cutter assembly 7 and the cold high-pressure water spray assembly 8 is limited by the limiting hole 5 to ensure the stability of the tool.

Claims

1. A blind hole chip breaking tool, comprising a tool storage bin (1), characterized in that: The top of the tool storage bin (1) is provided with a top closing cover (2), the bottom of the tool storage bin (1) is evenly provided with three tool fixing assemblies (3), the top of the tool storage bin (1) is provided with a top limiting plate (4), the top limiting plate (4) is evenly provided with three limiting holes (5), a milling cutter assembly (6), a universal boring cutter assembly (7) and a cold high-pressure water spray assembly (8) are arranged in the tool storage bin (1), and the bottom ends of the milling cutter assembly (6), the universal boring cutter assembly (7) and the cold high-pressure water spray assembly (8) all pass through the limiting holes (5) and are inserted into the tool fixing assembly (3); The plunge milling cutter assembly (6) comprises a first cutter bar (601), a square shoulder cutter (602) is arranged at the top end of the first cutter bar (601), and a first clamping rod (603) is arranged at the bottom end of the first cutter bar (601); The universal boring tool assembly (7) comprises a second tool rod (701), a double-edged boring tool (702) is arranged at the top end of the second tool rod (701), and a second clamping rod (703) is arranged at the bottom end of the second tool rod (701); The cold high-pressure water spray assembly (8) comprises an inner spray knife rod (801), two water spray holes (802) are provided at the top end of the side wall of the inner spray knife rod (801), and a third clamping rod (803) is provided at the bottom end of the inner spray knife rod (801).

2. A blind hole chip breaking tool according to claim 1, characterized in that: The tool fixing assembly (3) comprises a fixing base (301) arranged at the bottom of the tool storage bin (1); a limiting slot (302) is provided at the top of the fixing base (301); two inner wall grooves (303) are symmetrically provided on both sides of the inner wall of the limiting slot (302); and two side abutment plates (304) are provided in the inner wall grooves (303).

3. A blind hole chip breaking tool according to claim 2, characterized in that: The inner wall of the inner wall groove (303) is symmetrically provided with two sliding grooves (305), and the side of the side contact plate (304) is vertically provided with two sliding rods (306), the ends of the sliding rods (306) are slidably inserted into the sliding grooves (305), and the sliding rods (306) are sleeved with a contact spring (307), one end of the contact spring (307) is connected to the side contact plate (304), and the other end of the contact spring (307) is connected to the inner wall of the inner wall groove (303).

4. A blind hole chip breaking tool according to claim 3, characterized in that: The diameter of the limiting hole (5) is larger than the diameter of the bottom ends of the plunge milling cutter assembly (6), the universal boring cutter assembly (7) and the cold high-pressure water spray assembly (8).

5. A blind hole chip breaking tool according to claim 4, characterized in that: The inner side walls of the side contact plates (304) are all provided with anti-scratch pads.

6. A blind hole chip breaking tool according to claim 5, characterized in that: The bottom ends of the limiting slots (302) are provided with rubber pads, and the top diameter of the limiting slots (302) is greater than the bottom diameter.

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