A boring bar crossbeam

Abstract

This utility model relates to the field of machining technology, and in particular to a boring bar crossbeam, including a connecting part and mounting parts on both sides. The lower end of the mounting part is fixedly provided with a connecting plate for connecting the boring bar. The connecting part has a positioning hole for connecting with the tool holder and a bolt hole for cooperating with the tool holder. The mounting part has multiple mounting holes for cooperating with the boring bar base. By using a pressing block and a pressing column, when it is necessary to move or remove the boring bar base, force is applied to the pressing block to drive the pressing column downward, pressing the spring insert structure of the boring bar base, and squeezing the insert of the spring insert structure out of the mounting hole, so that the boring bar base can slide along the connecting plate. Through the cooperation of the driving groove and the driving block, the connection between the connecting part and the tool holder is made tighter, preventing the bolt from deforming due to excessive force.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a boring bar crossbeam. Background Technology

[0002] A boring tool is a type of hole-making tool, usually with a round shank, although square shanks are sometimes used for larger workpieces. It is commonly found on vertical lathes and is most often used for machining inner holes, reaming, and contouring. A boring tool has one or two cutting parts and is a tool specifically designed for roughing, semi-finishing, or finishing existing holes. Furthermore, boring tools can be used not only for machining inner holes but also for machining the outer diameter of end faces.

[0003] Existing boring tools typically consist of boring inserts, a base for fixing the boring inserts, a crossbeam for mounting the base, and a tool holder. The boring tool is connected to the machining equipment via the tool holder. For example, Chinese Patent Publication No. CN213916172U discloses "An Adjustable External Diameter Tool," which uses a fixed plate at the bottom of the boring tool crossbeam to pre-mark lines according to the outer diameter of the product. By moving the position of the boring tool base on the fixed plate, products with different outer diameters can be machined. This facilitates quick adjustment of the boring tool size during model changeovers, improves machining efficiency, and solves the technical problems of slow milling efficiency in conventional external diameter machining and the difficulty in adjusting the boring tool size with ordinary external diameter tools.

[0004] However, in actual use, when the boring bar base is installed on the fixed plate, the base needs to be fixed to prevent loosening and affecting the use effect. Usually, screws and other fasteners are used for fixing. When moving the boring bar base, the base needs to be unfixed first. The operation requires the use of tools such as screwdrivers, which makes it inconvenient to adjust the boring bar base and affects the processing efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, such as the need to use screwdrivers and other tools when moving the boring tool base, which makes it inconvenient to adjust the boring tool base and affects the processing efficiency. Therefore, a boring tool crossbeam is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A boring bar crossbeam is designed, including a connecting part and mounting parts on both sides. The lower end of the mounting part is fixedly provided with a connecting plate for connecting the boring bar. The connecting part has a positioning hole for connecting with the tool holder and a bolt hole for cooperating with the tool holder. The mounting part has a plurality of mounting holes for cooperating with the boring bar base.

[0008] Furthermore, the connecting part is also provided with a drive groove, and the tool holder is fixedly provided with a drive block that cooperates with the drive groove.

[0009] Furthermore, both sides of the connecting plate are provided with connecting grooves that mate with the boring tool base, and the boring tool base is provided with a spring insert structure corresponding to the mounting hole.

[0010] Furthermore, the mounting part is provided with a sliding groove, and a pressing block is slidably arranged in the sliding groove. The lower end of the pressing block is fixedly provided with a plurality of pressing posts that cooperate with the mounting hole and the spring plug structure.

[0011] Furthermore, a positioning block is fixedly provided on one side of the pressing block, and a guide groove that cooperates with the positioning block is provided in the sliding groove.

[0012] Furthermore, a spring is provided between the pressing block and the sliding groove.

[0013] The boring bar crossbeam proposed in this utility model has the following advantages:

[0014] In this utility model, when it is necessary to move or remove the boring tool base, force is applied to the pressing block to drive the pressing column to move downward, pressing the spring rod structure of the boring tool base, and squeezing the spring rod structure out of the mounting hole, so that the boring tool base can slide along the connecting plate.

[0015] Secondly, in this utility model, bolt holes are provided to hold bolts, thereby fastening the connecting part to the tool holder and preventing loosening. The drive groove cooperates with the drive block to make the connection between the connecting part and the tool holder tighter, preventing the bolt from deforming due to excessive force. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a boring bar crossbeam proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the drive groove of this utility model;

[0018] Figure 3 This is a schematic diagram of the pressing column of this utility model;

[0019] Figure 4 This is a schematic diagram of the positioning block of this utility model.

[0020] In the diagram: 1. Connecting part; 2. Mounting part; 3. Connecting plate; 31. Connecting groove; 4. Positioning hole; 5. Bolt hole; 6. Mounting hole; 7. Drive groove; 8. Pressing block; 81. Pressing column; 82. Positioning block; 9. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A boring bar crossbeam includes a connecting part 1 and mounting parts 2 on both sides. The lower end of the mounting part 2 is fixedly provided with a connecting plate 3 for connecting the boring bar. The connecting part 1 is provided with a positioning hole 4 for connecting with the tool holder. The connecting part 1 is provided with a bolt hole 5 for cooperating with the tool holder. The mounting part 2 is provided with a plurality of mounting holes 6 for cooperating with the boring bar base.

[0023] In this utility model, a bolt is placed through the bolt hole 5, and the bolt is threadedly connected to the tool holder, thereby fastening the connection part 1 to the tool holder and preventing loosening. The tool holder is positioned through the positioning hole 4, which facilitates the connection between the tool holder and the bolt.

[0024] Furthermore, in this embodiment, the connecting part 1 is also provided with a drive groove 7, and a drive block that cooperates with the drive groove is fixedly provided on the tool holder. The drive block is inserted into the drive groove 7. When the tool holder rotates, the drive block and the drive groove 7 cooperate to drive the connecting part 1 to rotate, thereby preventing the bolt from being deformed due to excessive force when rotating using only bolt connection.

[0025] Furthermore, in this embodiment, both sides of the connecting plate 3 are provided with connecting grooves 31 that cooperate with the boring tool base. The boring tool base is provided with a spring insert structure corresponding to the mounting hole 6. The insert part of the spring insert structure is inserted into the mounting hole 6 under the action of the spring, thereby preventing the boring tool base from moving along the connecting plate 3 and fixing the boring tool base. When the position of the boring tool base is changed, the insert of the spring insert structure moves accordingly and is inserted into the mounting hole 6 at different positions.

[0026] It should be noted that, in this embodiment, a sliding groove is provided on the mounting part 2, and a pressing block 8 is slidably arranged in the sliding groove. A plurality of pressing posts 81 that cooperate with the mounting hole 6 and the spring insert structure are fixedly arranged at the lower end of the pressing block 8. When force is applied to the pressing block 8 to make it move down, the pressing posts 81 move down accordingly, and force is applied to the insert part of the spring insert structure of the boring tool base, so that the insert of the spring insert structure is squeezed out of the mounting hole, thereby allowing the boring tool base to slide along the connecting plate 3 to adjust its position or to be removed and replaced.

[0027] Furthermore, in this embodiment, a positioning block 82 is fixedly provided on one side of the pressing block 8, and a guide groove that cooperates with the positioning block 82 is provided in the slide groove. By setting the guide groove to cooperate with the positioning block 82, the movement of the pressing block 8 is restricted, and the pressing block 8 is prevented from separating from the slide groove and falling off.

[0028] More specifically, in this embodiment, a spring 9 is provided between the pressing block 8 and the slide groove. In the initial state, the spring 9 pushes up the pressing block 8 and the pressing post 81 to prevent the mounting hole 6 from being blocked and affecting the insertion of the rod.

[0029] Working method: During operation, bolts are installed through bolt holes 5, and the bolts are threadedly connected to the tool holder to secure the connecting part 1 to the tool holder and prevent loosening. The tool holder is positioned through positioning holes 4 to facilitate the connection between the tool holder and the bolts. The spring insert of the boring tool base is inserted into the mounting hole 6 under the action of the spring, thereby preventing the boring tool base from moving along the connecting plate 3 and fixing the boring tool base.

[0030] When changing the position of the boring bar base, force is applied to the pressing block 8 to make it move down, and the pressing column 81 moves down accordingly. Force is applied to the insert part of the spring insert structure of the boring bar base to push the insert of the spring insert structure out of the mounting hole, so that the base can slide along the connecting plate 3 to adjust its position or be removed and replaced.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A boring bar comprising a connecting portion (1) and mounting portions (2) on both sides thereof, characterized in that: The lower end of the mounting part (2) is fixedly provided with a connecting plate (3) for connecting the boring tool. The connecting part (1) is provided with a positioning hole (4) for connecting with the tool holder. The connecting part (1) is provided with a bolt hole (5) for cooperating with the tool holder. The mounting part (2) is provided with a plurality of mounting holes (6) for cooperating with the boring tool base.

2. The boring bar beam of claim 1, wherein: The connecting part (1) is also provided with a drive groove (7), and a drive block that cooperates with the drive groove is fixedly provided on the tool holder.

3. The boring bar beam of claim 1 wherein: Both sides of the connecting plate (3) are provided with connecting grooves (31) that cooperate with the boring tool base. The boring tool base is provided with a spring rod structure corresponding to the mounting hole (6).

4. The boring bar beam of claim 3, wherein: The mounting part (2) is provided with a sliding groove, and a pressing block (8) is slidably arranged in the sliding groove. The lower end of the pressing block (8) is fixedly provided with a plurality of pressing posts (81) that cooperate with the mounting hole (6) and the spring plug structure.

5. The boring bar beam of claim 4, wherein: A positioning block (82) is fixedly provided on one side of the pressing block (8), and a guide groove that cooperates with the positioning block (82) is provided in the sliding groove.

6. The boring bar beam of claim 5, wherein: A spring (9) is provided between the pressing block (8) and the slide groove.

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