Hole machining cutter bar seat device for machine tool cutter

Abstract

The hole machining cutter bar seat device for the machine tool cutter comprises a boring bar cutter handle detachably and fixedly connected with the end of a boring bar into a whole, a clamping seat is fixed to the lower end of the boring bar cutter handle, a cutter bar seat is arranged on the outer side of the clamping seat, and the cutter bar seat is detachably fixed to the outer side wall of the clamping seat. And a cutter bar which is eccentrically arranged with the boring cutter shaft and is used for mounting a chamfering cutter or a boring cutter is detachably fixed on the cutter bar seat. According to the utility model, the boring bar cutter handle is detachably fixed at the end part of the boring bar, and the cutter bar seat for mounting the cutter bar is fixed on the clamping seat fixed at the lower end of the boring bar cutter handle, so that conditions are provided for eccentric mounting of a chamfering cutter or a boring cutter, and the purpose of mounting different types of chamfering cutters on the boring bar is realized; the problem that the cutter bar for mounting the chamfering cutter is not matched with the required diameter is solved, a large-diameter chamfering cutter bar does not need to be ordered, the purchase cost is reduced, the requirement for mounting chamfering cutters of different sizes and types is met, the structure is simple, the design is reasonable, the structure is compact, dismounting and mounting are convenient and rapid, the cost is low, and the production precision requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of the tool shank seat of machine tool cutters, and particularly relates to a hole machining tool shank seat device for machine tool cutters. Background Art

[0002] There are relatively many large parts and deep holes to be processed, and the number of parts is small. For each part, the dimensional requirements and processing methods are different, and different corresponding tools and accessories need to be purchased. For deep hole machining, corresponding tools for rough boring and finish boring can be purchased, but for the chamfering cutter at the hole opening of each part, since the common chamfering cutter specifications on the market are mostly or the diameter is even larger. To install such chamfering cutters, an ER32 or ER40 extended tool shank is required, but the diameter of the ER32 extended tool shank is only The ER40 extended tool shank is only Our company processes deep holes and large holes on a Haitian H160II / D CNC boring machine. This equipment is equipped with a W-axis, and the boring bar can extend 700 mm. The diameter of the boring bar is The chamfering cutters on the market need to be clamped with an ER32 or ER40 tool holder. When machining the upper and lower chamfers of deep holes with a depth of 700 to 1000, the ER32 or ER40 tool shanks are too thin to be processed. ER tool shanks with a diameter of 700 to 1000 cannot be purchased on the market. Only a chamfering cutter with a diameter larger than the diameter of the boring bar can be configured with the W-axis extending 700 mm. Purchasing large-diameter chamfering cutters requires customization, which has a long cycle. Generally, it takes at least 2 weeks to arrive, and there are many size types, which cannot meet the production schedule, and the procurement cost is also relatively high. Therefore, it is necessary to make improvements. Content of the Utility Model

[0003] The technical problem solved by the utility model is to provide a hole machining tool shank seat device for machine tool cutters. By detachably fixing a boring bar tool holder at the end of the boring bar, and fixing a tool shank seat for installing a tool shank on a clamping seat fixed at the lower end of the boring bar tool holder, conditions are provided for the eccentric installation of a chamfering cutter or a boring cutter, so as to achieve the purpose of installing different types of chamfering cutters on the boring bar, solve the problem that the tool shank for installing the chamfering cutter does not match the required diameter, eliminate the need to order large-diameter chamfering cutter tool shanks, reduce the procurement cost, meet the installation of chamfering cutters of different size types, with a simple structure, reasonable design, compact structure, convenient and fast disassembly and assembly, low cost, and meet the production accuracy requirements.

[0004] The technical solution adopted by the utility model is: a hole machining tool shank seat device for machine tool cutters, including a boring bar tool holder detachably and integrally connected to the end of a boring bar, a clamping seat is fixed at the lower end of the boring bar tool holder, and a tool shank seat is arranged outside the clamping seat. The tool shank seat is detachably fixed on the outer side wall of the clamping seat, and is eccentrically arranged with a boring cutter shaft, and a tool shank for installing a chamfering cutter or a boring cutter is detachably fixed on the tool shank seat.

[0005] Among them, the boring bar tool holder includes an upper tapered section, a middle large-diameter section, and a lower small-diameter section. The lower end of the boring tool is inserted into the central hole of the boring bar tool holder, and a boring bar set screw threaded on the outer circumferential wall of the small-diameter section presses the boring bar tightly against the boring bar tool holder.

[0006] Furthermore, the lower end of the small-diameter section is fixedly connected to the upper end face of the clamping seat.

[0007] Furthermore, a slot is formed in the middle of the lower end face of the clamping seat, and a plug rod provided on the inner side wall of the tool bar seat is inserted into the slot. A notch groove is formed on the outer wall of one side of the lower end of the clamping seat, and a plurality of bolts threaded on the side groove wall of the notch groove press the plug rod tightly in the slot, realizing the detachable connection of the tool bar seat on the clamping seat.

[0008] Furthermore, the side of the tool bar seat facing the clamping seat is an arc surface adapted to the outer circumferential wall of the clamping seat. An installation hole penetrating from the upper end face to the lower end face is formed on the upper end face of the tool bar seat, and the tool bar is arranged through the installation hole, and the tool bar is pressed tightly against the tool bar seat by a plurality of fixing bolts threaded on the side wall of the tool bar seat.

[0009] Furthermore, a plurality of the fixing bolts are located below the clamping seat, and the edges of the tool bar seat are all chamfered.

[0010] Furthermore, the tool installed on the tool bar is a boring tool or a chamfering tool, and the tool can be installed at the upper end or the lower end of the tool bar.

[0011] Advantages of the present utility model compared with the prior art:

[0012] 1. In this technical solution, the boring bar tool holder is detachably fixed to the end of the boring bar, and a tool bar seat for installing the tool bar is fixed on the clamping seat fixed to the lower end of the boring bar tool holder, providing conditions for the eccentric installation of the chamfering tool or the boring tool, achieving the purpose of installing different types of chamfering tools on the boring bar, and solving the problem that the tool bar for installing the chamfering tool does not match the required diameter.

[0013] 2. In this technical solution, the boring bar is fixed by a set screw provided at the lower end of the boring bar tool holder, which is convenient and fast for fixing. The tool bar seat is tightly fixed by a plurality of bolts through the cooperation of the plug rod and the slot on the bottom surface of the clamping seat, realizing the quick disassembly and assembly of the tool bar seat on the clamping seat.

[0014] 3. In this technical solution, the tool can be installed at the upper end or the lower end of the tool bar according to the usage situation, and the angle of the tool can be conveniently adjusted to meet the tool installation requirements under different usage scenarios.

[0015] 4. This technical solution has a simple structure, reasonable design, compact structure, convenient and fast disassembly and assembly, low cost, does not need to order a tool bar for a large-diameter chamfering tool, reduces the procurement cost, meets the installation of chamfering tools of different sizes and types, and meets the production accuracy requirements. Brief Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a front view of the present utility model;

[0018] Figure 3 is a rear view of the present utility model;

[0019] Figure 4 is Figure 2 a sectional view taken along line A-A in

[0020] Figure 5 is Figure 2 a partial schematic view in the direction of B in Detailed Description of the Preferred Embodiments

[0021] Next, in combination with the Figures 1-5 in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] It should be noted that in this article, unless otherwise stated, it should be understood that: the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In this article, the term "comprising", "including" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. The element defined by the phrase "comprising an......" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0024] A hole machining tool bar seat device for a machine tool cutter, as Figures 1-5As shown in the figure, it includes a boring bar tool holder 1 detachably and integrally fixed to the end of the boring bar. A clamping seat 3 is fixed to the lower end of the boring bar tool holder 1, and a tool bar seat 5 is provided outside the clamping seat 3. The tool bar seat 5 is detachably fixed to the outer side wall of the clamping seat 3, and a tool bar 6 for installing a chamfering tool or a boring tool, which is eccentrically arranged with the boring tool shaft, is detachably fixed to the tool bar seat 5. In the above structure, by detachably fixing the boring bar tool holder 1 to the end of the boring bar and fixing the tool bar seat 5 for installing the tool bar 6 on the clamping seat 3 fixed to the lower end of the boring bar tool holder 1, conditions are provided for the eccentric installation of the chamfering tool or the boring tool, the purpose of installing different types of chamfering tools on the boring bar is realized, and the problem that the tool bar 6 for installing the chamfering tool does not match the required diameter is solved.

[0025] The specific structure of the boring tool holder 1 is as follows: The boring bar tool holder 1 includes an upper tapered section 1-1, a middle large-diameter section 1-2, and a lower small-diameter section 1-3. The lower end of the boring tool is inserted into the central hole of the boring bar tool holder 1, and a boring bar set screw 2 threaded on the outer circumferential wall of the small-diameter section 1-3 presses the boring bar tightly against the boring bar tool holder 1. Specifically, the lower end of the small-diameter section 1-3 is fixedly connected to the upper end face of the clamping seat 3. The boring bar is inserted into the central hole of the boring bar tool holder 1, and the lower end of the boring bar abuts against the upper end face of the clamping seat 3 for positioning. In the above structure, the boring bar is fixed by the set screw 2 provided at the lower end of the boring bar tool holder 1, which is convenient and fast. The tool bar seat 5 is quickly disassembled and assembled on the clamping seat 3 by the cooperation of the insertion rod 10 and the slot 7 on the bottom surface of the clamping seat 3, and the insertion rod 10 is tightly fixed by a plurality of bolts 4.

[0026] The fixing structure of the tool bar seat 5 on the clamping seat 3 is as follows: A slot 7 is formed in the middle of the lower end face of the clamping seat 3, and an insertion rod 10 provided on the inner side wall of the tool bar seat 5 is inserted into the slot 7. A notch groove 8 is formed on the outer wall of one side of the lower end of the clamping seat 3, and a plurality of bolts 4 threaded on the side wall of the notch groove 8 press the insertion rod tightly in the slot 7, realizing the detachable connection of the tool bar seat 5 on the clamping seat 3.

[0027] The specific structure of the tool bar seat 5 and the fixing structure of the tool bar 6 on the tool bar seat 5 are as follows: The side of the tool bar seat 5 facing the clamping seat 3 is an arc surface adapted to the outer circumferential wall of the clamping seat 3. An installation hole penetrating from the upper end face to the lower end face is formed on the upper end face of the tool bar seat 5, and the tool bar 6 penetrates through the installation hole and is tightly fixed to the tool bar seat 5 by a plurality of fixing bolts 9 threaded on the side wall of the tool bar seat 5. Specifically, a plurality of the fixing bolts 9 are located below the clamping seat 3, and the edges of the tool bar seat 5 are all chamfered. Specifically, the tool installed on the tool bar 6 is a boring tool or a chamfering tool, and the tool can be installed at the upper end or the lower end of the tool bar 6. In the above structure, the tool can be installed at the upper end or the lower end of the tool bar 6 according to the use situation, and the angle of the tool can be conveniently adjusted to meet the tool installation requirements in different use scenarios.

[0028] Purchase 1 BT50-LBK-6 boring bar tool holder. The length of the boring bar 6 is determined according to requirements. Purchase 2 M12X1.5 boring bar setscrews (Note: special setscrews) for connecting the boring bar tool holder 1 and the clamping seat 3. The upper end of the clamping seat 3 is connected to the boring bar, and the lower end is connected to the tool bar seat 5. Purchase 4 3-M12X20 socket head cap screws for fixing the tool bar seat 5. The tool bar seat 5 is made of material T10 (carbon tool steel, hardness can reach 60HRC), the screw holes are machined after quenching and tempering, and the rest are machined after quenching. The holes are cut by wire electrical discharge machining, and there is a flat square inside the holes to prevent the boring bar 6 from rotating due to excessive cutting force. Selecting good material and quenching can greatly extend the service life of the adjustable tool bar seat 5. Purchase standard chamfering tools on the market. With a side-fixed flat square for bolt fixation. Purchase blades with different material coatings according to the machined parts. Purchase M4 blade screws (special screws for blades) for pressing the blades. M10×20 socket head cap screws are used to press the chamfering tool. M10×35 socket head cap screws are used to press the chamfering tool. Due to position reasons, one long and one short bolt are used for fixation. This device for machining the adjustable tool bar seat 5 is optimally assembled for chamfering the upper and lower openings of deep holes. It can chamfer by circular interpolation milling or directly feed chamfering by adjusting the dimension in the Z direction. Just replace the chamfering tool according to the drawing requirements for normal or reverse installation. The price of a chamfering tool bar on the market is about 100 yuan. It is a mature and general product, easy to purchase, and the price is cheap, saving costs for the company. Using the W-axis extension and installing at the end of the short boring bar also improves the cutting strength of the tool and the surface finish of the chamfered surface. This device improves work efficiency and reduces costs.

[0029] This technical solution has a simple structure, reasonable design, compact structure, is convenient and fast to disassemble and assemble, has low cost, does not need to order large-diameter chamfering tool bars, reduces procurement costs, meets the installation of chamfering tools of different sizes and types, and meets the production accuracy requirements.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tool holder device for hole processing of machine tool, characterized in that: The invention comprises a boring bar handle (1) which is detachably fixed to the end of a boring bar, a holder (3) being fixed to the lower end of the boring bar handle (1), and a tool bar seat (5) being arranged outside the holder (3), the tool bar seat (5) being detachably fixed to the outer wall of the holder (3), and a tool bar (6) which is eccentrically arranged with the boring tool shaft and is used for mounting a chamfering tool or a boring tool is detachably fixed to the tool bar seat (5).

2. The hole machining tool bar seat device for machine tool according to claim 1, characterized in that: The boring bar shank (1) comprises an upper conical section (1-1), a middle large diameter section (1-2) and a lower small diameter section (1-3); the lower end of the boring tool is inserted into the central hole of the boring bar shank (1), and a boring bar top screw (2) threadedly connected to the outer circumferential wall of the small diameter section (1-3) tightly fixes the boring bar on the boring bar shank (1).

3. The hole machining tool bar seat device for machine tool according to claim 2, characterized in that: The lower end of the small diameter section (1-3) is fixedly connected to the upper end surface of the clamping seat (3).

4. The hole machining tool holder device for machine tool according to claim 1, characterized in that: A slot (7) is formed in the middle of the lower end surface of the clamping seat (3), and an insertion rod (10) arranged on the inner side wall of the tool bar seat (5) is inserted into the slot (7). A notch groove (8) is formed on the outer wall of one side of the lower end of the clamping seat (3), and a plurality of bolts (4) threadedly connected to the side groove wall of the notch groove (8) tighten the insertion rod into the slot (7), thereby realizing a detachable fixed connection of the tool bar seat (5) to the clamping seat (3).

5. The hole machining tool holder device for a machine tool according to any one of claims 1 to 4, characterized in that: The side surface of the tool rod seat (5) facing the clamping seat (3) is an arc-shaped surface adapted to the outer circumferential wall of the clamping seat (3); the upper end surface of the tool rod seat (5) is provided with a mounting hole extending through the lower end surface, and the tool rod (6) is arranged to pass through the mounting hole, and the tool rod (6) is tightened and fixed on the tool rod seat (5) by a plurality of fixing bolts (9) threadedly connected to the side wall of the tool rod seat (5).

6. The hole machining tool bar seat device for machine tool according to claim 5, characterized in that: The plurality of fixing bolts (9) are located below the clamping seat (3), and the edges of the tool bar seat (5) are all chamfered.

7. The hole machining tool bar seat device for machine tool according to claim 6, characterized in that: The tool installed on the tool rod (6) is a boring tool or a chamfering tool, and the tool can be installed at the upper end or the lower end of the tool rod (6).

Images