Adjustable large aperture combined boring cutter for boring and milling machine

Abstract

The utility model discloses adjustable big aperture combination boring cutter for boring and milling machine relates to boring and milling machine equipment technical field, including the cutter bar, the one side of cutter bar is provided with handle, the other side of cutter bar is fastened to handle through locking nut. The other side of cutter bar is provided with the cutter bush of adjustable position, be provided with the tool bit on the cutter bush, be fixed to the tool bit on the cutter bush through the compression bolt. The present application simple structure and convenient operation, through the sliding cutter bush and install locking bolt in corresponding mounting hole to cutter bush fixed, thereby can change the extension length of tool bit, the processing of convenient to different specifications round hole, no longer need to configure different specifications boring tool, greatly reduce cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of boring and milling machine equipment, specifically an adjustable large-diameter combination boring tool for boring and milling machines. Background Technology

[0002] Boring is a process that uses a boring bar to enlarge and refine an existing hole. With the rapid development of industrial technology, the requirements for the precision and efficiency of boring are becoming increasingly stringent. The way to achieve this is by increasing the tool speed to achieve higher cutting and feed rates, thereby obtaining better internal hole surface quality and higher machining efficiency.

[0003] In the existing technology field, the machining of various sizes of round holes required on molds typically relies on boring tools equipped on milling machines. Traditionally, each size of round hole requires a specific size boring tool, meaning that whenever a different size of round hole needs to be machined, the corresponding tool must be used. This one-to-one correspondence between tool and round hole size results in the need to equip a large number of boring tools of different sizes during the production preparation stage, significantly increasing manufacturing costs and inventory management complexity. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes an adjustable large-diameter combination boring tool for boring and milling machines.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An adjustable large-diameter combination boring tool for a boring and milling machine includes a tool holder, a tool shank on one side of the tool holder, and a locking nut securing the tool shank to the other side of the tool holder.

[0007] An adjustable tool holder is provided on the other side of the tool holder, and a tool head is provided on the tool holder. The tool head is fixed to the tool holder by a clamping bolt.

[0008] As a further embodiment of this utility model: a dovetail groove is provided on the top of the tool holder, and one side of the dovetail groove cavity is open.

[0009] As a further embodiment of this utility model: one side of the blade sleeve is integrally formed with a dovetail strip adapted to the dovetail groove, the blade sleeve and the blade shank are fixedly connected by locking bolts, and one side of the blade shank is provided with multiple mounting holes for use with locking bolts.

[0010] As a further embodiment of this utility model: a winding box is fixedly connected to one side of the blade bar, and a flexible shielding strip is provided on the winding box.

[0011] As a further embodiment of this utility model: a connecting plate is fixedly connected to the flexible shielding strip, and a folding rod is connected to the connecting plate through a reset assembly.

[0012] As a further embodiment of this utility model, the blade sheath is provided with a positioning hole for use with the folding rod.

[0013] As a further embodiment of this utility model: the reset assembly includes a movable groove formed on the connecting plate, a spring is fixedly connected in the movable groove, and the spring is fixedly connected to the bending rod.

[0014] As a further embodiment of this utility model: a pressure plate for pressing the flexible shielding strip is fixedly connected to the blade bar.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application has a simple structure and is easy to operate. The tool holder is fixed by sliding the tool holder and installing the locking bolt in the corresponding mounting hole, thereby changing the extension length of the tool head, which is convenient for processing round holes of different specifications. It eliminates the need to configure boring tools of different specifications, greatly reducing costs.

[0017] 2. This application utilizes a combination of flexible shielding strips, folding rods, and positioning holes to shield the dovetail groove when it is exposed, preventing debris from falling into the dovetail groove and avoiding any impact on the sliding of the dovetail strip within the groove. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 3 This is an exploded view of the tool holder and tool sleeve of this utility model;

[0021] Figure 4 This is a perspective view of the winding box, flexible shielding strip, connecting plate, and folding rod of this utility model;

[0022] Figure 5 This is a three-dimensional sectional view of the connecting plate of this utility model.

[0023] In the diagram: 1. Tool holder; 2. Tool shank; 3. Locking nut; 4. Tool sleeve; 5. Tool head; 6. Clamping bolt; 7. Dovetail groove; 8. Dovetail strip; 9. Locking bolt; 10. Mounting hole; 11. Rewind box; 12. Flexible shielding strip; 13. Connecting plate; 14. Reset assembly; 141. Movable groove; 142. Spring; 15. Folding rod; 16. Positioning hole; 17. Pressure plate. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Example 1

[0026] Please see Figures 1-3 As shown, this application provides an adjustable large-diameter combination boring tool for a boring and milling machine, including a tool holder 1, a tool shank 2 on one side of the tool holder 1, and a locking nut 3 to fasten the tool shank 1 to the tool shank 2 on the other side.

[0027] An adjustable tool holder 4 is provided on the other side of the tool holder 1. A cutting head 5 is mounted on the tool holder 4, and the cutting head 5 is fixed to the tool holder 4 by a clamping bolt 6. Both the tool holder 1 and the tool holder 4 are provided with graduation lines. By sliding the dovetail strip 8 in the dovetail groove 7, the tool holder 4 can be moved to a suitable position. Then, by installing the locking bolt 9 in the corresponding mounting hole 10, the tool holder 4 is fixed, thereby changing the extension length of the cutting head 5. This facilitates the machining of round holes of different specifications, eliminating the need for different specifications of boring tools and greatly reducing costs.

[0028] The top of the tool holder 1 is provided with a dovetail groove 7, and one side of the dovetail groove 7 is open.

[0029] The blade sleeve 4 has an integrally formed dovetail strip 8 that matches the dovetail groove 7 on one side. The blade sleeve 4 and the blade shank 1 are fixedly connected by a locking bolt 9. The blade shank 1 has a plurality of mounting holes 10 through it for use with the locking bolt 9.

[0030] Example 2

[0031] Based on Example 1, see Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown.

[0032] A winding box 11 is fixedly connected to one side of the blade 1. A spring is provided inside the winding box 11, and a flexible shielding strip 12 is wound around the spring. When the flexible shielding strip 12 is pulled outward, the spring is subjected to force. When the flexible shielding strip 12 is released, the spring can drive the flexible shielding strip 12 to return to its original position. Its principle is the same as that of a measuring tape. The winding box 11 is provided with a flexible shielding strip 12.

[0033] A connecting plate 13 is fixedly connected to the flexible shielding strip 12, and a folding rod 15 is connected to the connecting plate 13 via a reset assembly 14. After adjusting the position of the blade sleeve 4, if the dovetail groove 7 is exposed, the flexible shielding strip 12 is pulled by the connecting plate 13 to cover the outside of the dovetail groove 7. At the same time, the flexible shielding strip 12 adheres to the blade bar 1. Then, the folding rod 15 is pulled, so that the spring 142 is under tension. Then, the folding rod 15 is aligned with the positioning hole 16, and under the elastic force of the spring 142, the folding rod 15 is locked in the positioning hole 16, thereby fixing the flexible shielding strip 12. Thus, the flexible shielding strip 12 can shield the dovetail groove 7, preventing debris from falling into the dovetail groove 7 and avoiding affecting the sliding of the dovetail bar 8 in the dovetail groove 7.

[0034] The blade sheath 4 has a positioning hole 16 that works in conjunction with the folding rod 15.

[0035] The reset assembly 14 includes a movable groove 141 formed on the connecting plate 13, and a spring 142 is fixedly connected in the movable groove 141. The spring 142 is fixedly connected to the folding rod 15.

[0036] A pressure plate 17 for pressing the flexible shielding strip 12 is fixedly connected to the cutter bar 1. By setting the pressure plate 17, the flexible shielding strip 12 can be pressed, which is beneficial for the flexible shielding strip 12 to fit against the cutter bar 1.

[0037] The working principle of this utility model is as follows: by sliding the dovetail strip 8 in the dovetail groove 7, the tool sleeve 4 can be moved to a suitable position. Then, by installing the locking bolt 9 in the corresponding mounting hole 10, the tool sleeve 4 is fixed, thereby changing the extension length of the tool head 5, which is convenient for processing round holes of different specifications. It is no longer necessary to configure boring tools of different specifications, which greatly reduces costs. After adjusting the position of the tool holder 4, if the dovetail groove 7 is exposed, the flexible shielding strip 12 is pulled by the connecting plate 13 to cover the outside of the dovetail groove 7. At the same time, the flexible shielding strip 12 is attached to the tool bar 1. Then, the folding rod 15 is pulled, so that the spring 142 is under tension. Then, the folding rod 15 is aligned with the positioning hole 16. Under the elastic force of the spring 142, the folding rod 15 is locked in the positioning hole 16, thereby fixing the flexible shielding strip 12. The flexible shielding strip 12 can then shield the dovetail groove 7 to prevent debris from falling into the dovetail groove 7 and avoid affecting the sliding of the dovetail bar 8 in the dovetail groove 7.

[0038] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. An adjustable large-diameter combination boring tool for a boring and milling machine, comprising a tool holder (1), characterized in that: A handle (2) is provided on one side of the tool bar (1), and the handle (2) is fastened to the other side of the tool bar (1) by a locking nut (3); On the other side of the cutter bar (1), there is an adjustable cutter sleeve (4), on which a cutter head (5) is provided. The cutter head (5) is fixed on the cutter sleeve (4) by a clamping bolt (6).

2. The adjustable large-diameter combination boring tool for a boring and milling machine according to claim 1, characterized in that, The top of the tool holder (1) is provided with a dovetail groove (7), and one side of the dovetail groove (7) is open.

3. The adjustable large-diameter combination boring tool for boring and milling machines according to claim 2, characterized in that, The blade sleeve (4) has an integrally formed dovetail strip (8) that matches the dovetail groove (7) on one side. The blade sleeve (4) and the blade shank (1) are fixedly connected by locking bolts (9). The blade shank (1) has multiple mounting holes (10) through it for use with locking bolts (9) on one side.

4. The adjustable large-diameter combination boring tool for a boring and milling machine according to claim 1, characterized in that, A winding box (11) is fixedly connected to one side of the cutter bar (1), and a flexible shielding strip (12) is provided on the winding box (11).

5. The adjustable large-diameter combination boring tool for a boring and milling machine according to claim 4, characterized in that, A connecting plate (13) is fixedly connected to the flexible shielding strip (12), and a folding rod (15) is connected to the connecting plate (13) through a reset assembly (14).

6. The adjustable large-diameter combination boring tool for a boring and milling machine according to claim 5, characterized in that, The blade sheath (4) is provided with a positioning hole (16) for use with the folding rod (15).

7. The adjustable large-diameter combination boring tool for a boring and milling machine according to claim 5, characterized in that, The reset assembly (14) includes a movable groove (141) formed on the connecting plate (13), in which a spring (142) is fixedly connected, and the spring (142) is fixedly connected to the folding rod (15).

8. The adjustable large-diameter combination boring tool for a boring and milling machine according to claim 4, characterized in that, A pressure plate (17) for pressing the flexible shielding strip (12) is fixedly connected to the knife bar (1).

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