阅读说明：本技术 组合式镗杆 (Combined boring bar ) 是由 孟东兰 王跃功 樊永彬 周豹 张娜娜 李海燕 何畔 张伟光 常乐 任海洋 李伟波 于 2019-10-28 设计创作，主要内容包括：本发明涉及组合式镗杆,包括镗杆本体和压紧组合机构,镗杆本体包括杆体、连接盘和定位台阶轴；压紧组合机构包括柱体、定位盘和尾盘,柱体、定位盘和尾盘为一个整体件,整体件的剖面为H形；定位盘的中心设置有与定位台阶轴大小匹配定位凹槽,以确保杆体与压紧组合机构的柱体中心线同轴,定位台阶轴插入定位凹槽后,通过第一螺栓将连接盘和定位盘固定组合连接在一起。本发明结构合理,设计巧妙,镗杆结构优化,便于更换,降低了镗杆的加工成本与加工难度,减少工人劳动强度,提高工人工作效率,节省了企业成本,增加企业效益,对现有技术来说,具有很好的市场前景和发展空间。(The invention relates to a combined boring bar, which comprises a boring bar body and a pressing combined mechanism, wherein the boring bar body comprises a bar body, a connecting disc and a positioning step shaft; the pressing combination mechanism comprises a cylinder, a positioning disc and a tail disc, the cylinder, the positioning disc and the tail disc are an integral piece, and the section of the integral piece is H-shaped; the center of positioning disk is provided with and fixes a position the step axle size and match positioning groove to ensure that the body of rod is coaxial with the cylinder central line that compresses tightly combined mechanism, after the location step axle inserts positioning groove, fix the combination with connection pad and positioning disk through first bolt and link together. The boring bar structure is reasonable in structure and ingenious in design, the boring bar structure is optimized, the boring bar structure is convenient to replace, the machining cost and the machining difficulty of the boring bar are reduced, the labor intensity of workers is reduced, the working efficiency of the workers is improved, the enterprise cost is saved, the enterprise benefit is increased, and the boring bar structure has good market prospect and development space for the prior art.)

1. The combined boring bar is characterized in that: the boring bar comprises a boring bar body and a pressing combined mechanism, wherein the boring bar body comprises a bar body (1), a connecting disc (2) and a positioning step shaft (3), the connecting disc (2) is positioned at the rear end of the bar body (1), and the positioning step shaft (3) protrudes outwards from the disc surface of the connecting disc (2) to form a step structure; a plurality of through holes (4) are uniformly formed in the circumference of the connecting disc (2); the pressing combination mechanism comprises a cylinder (5), a positioning disc (6) positioned at the front end of the cylinder (5) and a tail disc (7) positioned at the rear end of the cylinder (5), the positioning disc (6) and the tail disc (7) are an integral piece, and the section of the integral piece is H-shaped; the center of positioning disk (6) is provided with inside sunken positioning groove (8), positioning groove (8) and location step axle (3) size match to it is coaxial with cylinder (5) central line that compresses tightly combination mechanism to ensure the body of rod (1), and the outside of encircleing positioning groove (8) is provided with a plurality of screw holes (9) with through-hole (4) one-to-one, installs first bolt (10) in screw hole (9), and after location step axle (3) inserted positioning groove (8), link together connection pad (2) and positioning disk (6) fixed combination through first bolt (10).

2. The modular boring bar of claim 1, wherein: the upper half part of the column body (5) is sleeved with an upper gland (12), the upper gland (12) is of a semicircular downward opening structure, the joint of the semicircular structure and the deep hole boring machine extends towards the horizontal direction to form an ear plate, a plurality of bolt holes are uniformly formed in the ear plate horizontally, second bolts (11) are arranged in the bolt holes, and the column body (5) is fastened on the deep hole boring machine through the second bolts (11) and the upper gland (12).

3. The modular boring bar of claim 1, wherein: the position of the through hole (4) on the connecting disc (2) is matched and corresponds to the position of the threaded hole (9) on the positioning disc (6), and the mounting position of the first bolt (10) is guaranteed.

4. The modular boring bar of claim 1, wherein: the length of the extending end of the positioning step shaft (3) is twenty-five to twenty-five millimeters, so that the positioning step shaft (3) is prevented from being placed into the positioning groove (8) and is too short to cause shaking in the working process.

5. The modular boring bar of claim 1, wherein: the number of the through holes (4) is six to eight.

Technical Field

The invention relates to the field of machine tool tools, in particular to a combined boring bar.

Background

The deep hole boring machine is a machine tool for processing deep holes, and boring bars with different diameters need to be replaced according to the size of a processing hole diameter. The boring bar of the existing deep hole boring machine is mostly an integral boring bar, and the integral boring bar structure comprises a bar body, a positioning disc and a column body (see attached figure 1). The column body is tightly pressed on the boring machine, so that the boring rod is connected with the equipment. The rod body, the positioning disc and the column body of the boring rod are integrated, and the integral boring rod is long, so that the production and the processing are difficult, and the processing cost is high. The rod body and the column body of the integral boring rod have large diameter size difference, so that the raw material cost is high.

When the integral boring rod is installed, the column body part of the integral boring rod is assembled on a boring machine device, a gland is installed, a bolt is installed, and the integral boring rod is fixed on the boring machine. When the integral boring bar is replaced, the bolt on the boring machine needs to be unscrewed, the upper gland is taken down, and the integral boring bar can be replaced, so that the operation is inconvenient and the replacement is difficult.

How to design a rational in infrastructure, design benefit, boring bar configuration optimization, the change of being convenient for has reduced the processing cost and the processing degree of difficulty of boring bar, reduces workman intensity of labour, improves workman work efficiency, has saved the cost in business, increases the combination formula boring bar of performance in business is the problem that needs the solution at present.

Disclosure of Invention

The boring bar of the existing deep hole boring machine is mostly an integral boring bar, a bar body, a positioning disc and a column body of the boring bar are integrated, the integral boring bar is longer, so that the production and processing are difficult, the processing cost is high, and the diameter size of the bar body and the column body of the integral boring bar is greatly different, so that the raw material cost is high; when the integral boring rod is installed, the column body part of the integral boring rod is assembled on a boring machine device, an upper gland is installed, a bolt is installed, and the integral boring rod is fixed on the boring machine; when the integral boring bar is replaced, the bolt on the boring machine needs to be unscrewed, the upper gland is taken down, the integral boring bar can be replaced, and the technical problems of inconvenient operation, difficult replacement and the like are solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the combined boring bar comprises a boring bar body and a pressing combined mechanism, wherein the boring bar body comprises a bar body, a connecting disc and a positioning step shaft, the connecting disc is positioned at the rear end of the bar body, and the positioning step shaft protrudes outwards from the disc surface of the connecting disc to form a step structure; a plurality of through holes are uniformly formed in the circumference of the connecting disc; the pressing combination mechanism comprises a cylinder, a positioning disc positioned at the front end of the cylinder and a tail disc positioned at the rear end of the cylinder, the positioning disc and the tail disc are an integral piece, and the section of the integral piece is H-shaped; the center of positioning disk is provided with inside sunken positioning groove, positioning groove matches with location step axle size to ensure that the body of rod is coaxial with the cylinder central line that compresses tightly combination mechanism, the outside of encircleing positioning groove is provided with a plurality of screw holes with the through-hole one-to-one, installs first bolt in the screw hole, after location step axle inserts positioning groove, links together connection pad and positioning disk fixed combination through first bolt.

The upper half part of the column body is sleeved with an upper gland, the upper gland is of a semicircular downward opening structure, the joint of the semicircular structure and the deep hole boring machine extends in the horizontal direction to form an ear plate, a plurality of bolt holes are uniformly formed in the ear plate in the horizontal direction, second bolts are arranged in the bolt holes, and the column body is fastened on the deep hole boring machine through the second bolts and the upper gland.

The position of the through hole on the connecting disc corresponds to the position of the threaded hole on the positioning disc in an inosculating manner, so that the installation position of the first bolt is ensured.

The length of the extension end of the positioning step shaft is twenty-five to twenty-five millimeters, so that the positioning step shaft is prevented from being assembled into the positioning groove and being too short to cause work shaking.

The number of the through holes is six to eight.

Compared with the prior art, the invention has the beneficial effects that:

1) the boring bar comprises a boring bar body and a pressing combination mechanism, wherein the boring bar body comprises a bar body, a connecting disc and a positioning step shaft, and a plurality of through holes are uniformly formed in the circumference of the connecting disc; the pressing combination mechanism comprises a cylinder, a positioning disc positioned at the front end of the cylinder and a tail disc positioned at the rear end of the cylinder, the positioning disc and the tail disc are an integral piece, and the section of the integral piece is H-shaped; the boring rod is structurally optimized and convenient to replace, the machining cost and the machining difficulty of the boring rod are reduced, the problem that the boring rod of the existing deep hole boring machine is difficult to produce and machine, the machining cost is high, the diameter size of the rod body of the integral boring rod is greatly different from that of the cylinder body, and the cost of raw materials is high is solved; when the integral boring bar is replaced, the bolt on the boring machine needs to be unscrewed, the upper gland is taken down, and the integral boring bar can be replaced, so that the technical problems of inconvenient operation, difficult replacement and the like are solved;

2) an upper pressure plate is sleeved on the upper half part of the column body, the upper pressure plate is of a semicircular downward opening structure, the joint of the semicircular structure and the deep hole boring machine extends in the horizontal direction to form an ear plate, a plurality of bolt holes are horizontally and uniformly formed in the ear plate, second bolts are arranged in the bolt holes, and the upper pressure plate is fastened on the column body through the second bolts;

3) the position of the through hole on the connecting disc is matched and corresponds to the position of the threaded hole on the positioning disc, so that the mounting position of the first bolt is ensured;

4) the length of the extension end of the positioning step shaft is twenty-five to twenty-five millimeters, so that the positioning step shaft is prevented from being assembled into the positioning groove and being too short to cause work shaking.

Drawings

FIG. 1 is a schematic view of a conventional integrated boring bar;

FIG. 2 is a schematic view of the structure of the combined boring bar of the present invention;

FIG. 3 is a schematic view of a rod body structure according to the present invention;

FIG. 4 is a schematic view of the pressing assembly of the present invention;

FIG. 5 is a schematic sectional view of the combined boring bar of the present invention at A-A;

the labels in the figure are: 1. the body of rod, 2, connection pad, 3, location step axle, 4, through-hole, 5, cylinder, 6, positioning disk, 7, tail-disk, 8, positioning groove, 9, screw hole, 10, first bolt, 11, second bolt, 12, go up the pressure disk.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in the figure, the combined boring bar comprises a boring bar body and a pressing combined mechanism, wherein the boring bar body comprises a bar body 1, a connecting disc 2 and a positioning step shaft 3, the connecting disc 2 is positioned at the rear end of the bar body 1, and the positioning step shaft 3 protrudes outwards from the disc surface of the connecting disc 2 to form a step structure; a plurality of through holes 4 are uniformly formed in the circumference of the connecting disc 2; the pressing combination mechanism comprises a cylinder 5, a positioning disc 6 positioned at the front end of the cylinder 5 and a tail disc 7 positioned at the rear end of the cylinder 5, the positioning disc 6 and the tail disc 7 are an integral piece, and the section of the integral piece is H-shaped; the center of positioning disk 6 is provided with inside sunken positioning groove 8, positioning groove 8 matches with 3 sizes of location step axle to ensure that the body of rod 1 is coaxial with 5 central lines of cylinder that compress tightly the combined mechanism, the outside of encircleing positioning groove 8 is provided with a plurality of screw holes 9 with 4 one-to-one of through-hole, installs first bolt 10 in the screw hole 9, and after location step axle 3 inserted positioning groove 8, link together connection pad 2 and positioning disk 6 fixed combination through first bolt 10.

The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: according to the technical scheme, the upper gland 12 is sleeved on the upper half part of the column body 5, the upper gland 12 is of a semicircular downward opening structure, the joint of the semicircular structure and the deep hole boring machine extends towards the horizontal direction to form an ear plate, a plurality of bolt holes are uniformly formed in the ear plate horizontally, second bolts 11 are arranged in the bolt holes, and the column body 5 is fastened on the deep hole boring machine through the second bolts 11 and the upper gland 12.

The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the position of the through hole 4 on the connecting disc 2 corresponds to the position of the threaded hole 9 on the positioning disc 6 in a matching mode, and the mounting position of the first bolt 10 is guaranteed.

The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the length of the extending end of the positioning step shaft 3 is twenty-five to twenty-five millimeters, so that the positioning step shaft 3 is prevented from being placed in the positioning groove 8 and being too short to cause work shaking.

The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the number of through holes 4 as described is six to eight.

In practical application, as shown in fig. 2 to 5, in the installation of the combined boring bar, the positioning step shaft 3 of the boring bar body is fixed in the positioning groove 8 of the upper pressure plate, so that the boring bar body is ensured to be coaxial with the central line of the column 5; the bolt is screwed into the threaded hole 9 on the positioning plate 6 through the through hole 4 on the boring rod body connecting plate, so that the boring rod body and the column body are connected and fixed; the column 3 is assembled on a boring machine, the upper gland 12 is installed, the second bolt 11 is installed, and the upper gland 12 is fixed on the boring machine, so that the installation of the boring bar is realized. When the combined boring bar is replaced, other boring bar bodies can be replaced only by unscrewing the first bolt 10 and withdrawing the positioning step shaft 3 of the bar body 1 from the positioning groove 8 of the pressing combination mechanism; the boring bar can be replaced without unscrewing the second bolt 11 in the traditional mode and removing the upper gland 12, so that the efficiency is improved.

The invention has reasonable structure and ingenious design, the boring bar has optimized structure and is convenient to replace, the processing cost and the processing difficulty of the boring bar are reduced, the labor intensity of workers is reduced, the working efficiency of the workers is improved, the enterprise cost is saved, the enterprise benefit is increased, and the problems that the boring bar of the existing deep hole boring machine is mostly an integral boring bar, the bar body, the positioning disc and the column body of the boring bar are integrated, the integral boring bar is longer, the production and processing are difficult, the processing cost is high, and the diameter size of the bar body and the column body of the integral boring bar is greatly different, so the raw material cost is high; when the integral boring rod is installed, the column body part of the integral boring rod is assembled on a boring machine device, an upper gland is installed, a bolt is installed, and the integral boring rod is fixed on the boring machine; when the whole boring bar is replaced, the bolt on the boring machine needs to be unscrewed, the upper gland is taken down, the whole boring bar can be replaced, the operation is inconvenient, the technical problems of difficulty in replacement and the like exist, and the method has a good market prospect and a good development space for the prior art.

The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples described above, and various changes can be made within the knowledge of those skilled in the art without departing from the concept of the present invention.