Combined alloy boring cutter for milling

Abstract

This utility model relates to the technical field of boring and milling equipment, and discloses a combined alloy boring tool for milling, including a tool holder. A limiting groove is formed on the inner side of the tool holder, and two mutually paired clamping blocks are slidably connected to the inner side of the limiting groove. A ribbed groove is formed on the outer side of the tool holder, and a through groove is formed near the bottom of the limiting groove. The through groove extends from the side of the tool holder away from the ribbed groove. A ribbed rod is inserted into the inner side of the ribbed groove, and a boring head connecting rod is fixedly connected to the side of the ribbed rod near the limiting groove. This utility model limits the boring head connecting rod by inserting the ribbed rod into the ribbed groove and by using the two clamping blocks to engage with the annular grooves from both sides. Furthermore, the positioning blocks position the positioning grooves on the boring head connecting rod, making the combination of the boring tool and the tool holder more robust and reliable, and effectively reducing the problem of tool vibration.

Description

Technical Field

[0001] This utility model relates to the technical field of boring and milling equipment, and in particular to a combined alloy boring tool for milling. Background Technology

[0002] A boring bar is a hole-making tool mainly used for internal hole machining, reaming, and contouring. It can be used on boring machines, lathes, or milling machines. In practice, the appropriate boring bar size is selected according to the size of the hole to be machined. Then, the boring bar is inserted into the tool holder, and the tool length is adjusted to ensure that the tool can reach the depth of the hole to be machined. Next, the boring bar is clamped with a tool to ensure that it will not slip or rotate. Then, the machining parameters are set according to the hardness of the material to be machined, the cutting depth, and the speed, and machining begins. Fine or micro adjustments are made as needed. However, existing boring bars often exhibit vibration during actual hole drilling.

[0003] For example, Chinese utility model patent CN218964162U discloses a combined alloy boring tool for milling. Although this solution inserts the tool body into the positioning groove through a positioning pin, then adjusts the relative position between connecting ring one and connecting ring two so that the threaded holes on their surfaces are aligned, and then fixes connecting ring one and connecting ring two with fastening bolt one to complete the combination between the tool holder and the tool body, achieving the function of facilitating the replacement of the tool body later, the two circular connecting rings in this solution are only fastened together by multiple bolts. When encountering high-frequency rigid interference during the milling process, the connecting parts are prone to loosening, eventually causing the tool vibration problem. Based on this, a combined alloy boring tool for milling that can solve the above problems is proposed. Utility Model Content

[0004] To solve the technical problem of tool vibration in boring tools, this utility model provides a combined alloy boring tool for milling.

[0005] This utility model is achieved using the following technical solution: a combined alloy boring tool for milling, comprising a tool holder, a limiting groove on the inner side of the tool holder, two mutually paired clamping blocks slidably connected to the inner side of the limiting groove, a rib groove on the outer side of the tool holder, a through groove near the bottom of the rib groove, the through groove extending out from the side of the tool holder away from the rib groove, a rib rod inserted into the inner side of the rib groove, a boring head connecting rod fixedly connected to the side of the rib rod near the limiting groove, an annular groove on the boring head connecting rod, two clamping blocks cooperating with the inner side of the annular groove, a positioning mechanism between the clamping blocks and the boring head connecting rod, a clamping block driving mechanism for opening or closing the two clamping blocks on the lower side of the tool holder, and a milling boring tool mechanism at the end of the rib rod away from the boring head connecting rod.

[0006] As a further improvement to the above solution, the positioning mechanism includes two positioning grooves opened on the bottom side of the annular slot. The two positioning grooves are symmetrically distributed, and a positioning block is fixedly connected to the side of each clamping block near the through groove. Each positioning block is configured to cooperate with the clamping block on the same side.

[0007] As a further improvement to the above solution, the clamping block driving mechanism includes a second slider fixedly connected to the outer sides of the two clamping blocks respectively. A boring block is fixedly connected to the lower side of the tool holder. Two first grooves are formed on the boring block. A first slider is slidably connected to the inner side of the two first grooves respectively. The upper side of each first slider is fixedly connected to the lower side of the corresponding second slider on the same side. A slider driving mechanism is provided on the inner side of the boring block to make the two first sliders move closer or further apart.

[0008] As a further improvement to the above solution, the slider driving mechanism includes a push block that is slidably connected to the inner side of the boring base. The push block has two wedge-shaped grooves. Two wedge-shaped locking blocks are fixedly connected to the side of the two first sliders near the push block. Each wedge-shaped locking block is slidably connected to the inner side of the corresponding wedge-shaped groove on the same side. The lower side of the boring base is provided with a push block driving mechanism that causes the push block to move up and down reciprocally.

[0009] As a further improvement to the above solution, the push block driving mechanism includes a limiting platform fixedly connected to the lower side of the boring base, and an internal hexagon bolt is rotatably connected to the lower side of the limiting platform. The upper end of the internal hexagon bolt is threadedly connected to the push block.

[0010] As a further improvement to the above solution, the milling boring tool mechanism includes a boring bar fixedly connected to one end of the rib, and a tool holder fixedly connected to one end of the boring bar, on which a cutting tool is mounted.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model limits the boring head connecting rod by inserting the rib into the rib groove and by using two clamping blocks to cooperate with the annular slot from both sides. Furthermore, the positioning block positions the positioning groove on the boring head connecting rod, making the combination and installation of the boring tool and tool holder more secure and reliable, and effectively reducing the problem of tool vibration.

[0013] 2. This utility model uses the push block to move up and down, and the wedge-shaped groove on the push block drives the wedge-shaped clamping blocks on both sides to move closer or further apart, thereby achieving the effect of clamping and positioning the two clamping blocks. This internal clamping can reduce the possibility of foreign objects entering the fixture, and has the advantages of higher clamping and positioning accuracy and smaller system error, thereby ensuring the accuracy of boring tool installation and thus helping to improve the accuracy of workpiece after milling. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a combined alloy boring tool for milling provided by this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the first explosion structure;

[0016] Figure 3 for Figure 1 A schematic diagram of the second explosion structure;

[0017] Figure 4 This is a schematic diagram of the structure of a clamping block driving mechanism according to an embodiment of the present invention;

[0018] Figure 5 This is a cross-sectional view of the push block in one embodiment of the present invention;

[0019] Figure 6 This is a schematic diagram of the blade structure in one embodiment of the present invention.

[0020] Explanation of key symbols:

[0021] 1. Boring base; 2. Slider No. 1; 3. Slider No. 2; 4. Tool holder; 5. Rib bar; 6. Boring bar; 7. Tool holder; 8. Cutting tool; 9. Limiting stage; 10. Boring head connecting rod; 11. Positioning groove; 12. Annular groove; 13. Rib groove; 14. Through groove; 15. Limiting groove; 16. Clamping block; 17. Positioning block; 18. Socket head bolt; 19. Push block; 20. Wedge-shaped clamping block; 21. Wedge-shaped slide groove; 22. Slide No. 1. Detailed Implementation

[0022] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] Example:

[0024] Please combine Figures 1-3 This embodiment of a combined alloy boring tool for milling includes a tool holder 4, which is mainly used for fixed connection with the main rotating shaft of a milling machine or boring machine. A limiting groove 15 is formed on the inner side of the tool holder 4, and two mutually paired clamping blocks 16 are slidably connected to the inner side of the limiting groove 15. In this embodiment, the clamping blocks 16 are arc-shaped, and their structural schematic diagram is shown below. Figure 3As shown, a notch 13 is provided on the outer side of the tool holder 4. In this embodiment, the notch 13 is a six-sided notch. A through groove 14 is provided through the bottom of the notch 13 near the limiting groove 15. The through groove 14 extends out from the side of the tool holder 4 away from the notch 13. A notch 5 is inserted into the inner side of the notch 13. The notch 5 is a six-sided notch, which facilitates quick insertion and removal assembly with the notch 13 and prevents rotation during milling. A boring head connecting rod 10 is fixedly connected to the side of the notch 5 near the limiting groove 15. It should be noted that the end of the boring head connecting rod 10 that extends from the other side of the tool holder 4 is equipped with an internal fine-tuning mechanism. The boring head connecting rod 10 is provided with an annular groove 12. Two clamping blocks 16 are fitted with the inner side of the annular groove 12. A positioning mechanism is provided between the clamping blocks 16 and the boring head connecting rod 10. A clamping block driving mechanism is provided on the lower side of the tool holder 4 to open or close the two clamping blocks 16. A milling boring tool mechanism is provided at the end of the joist 5 away from the boring head connecting rod 10.

[0025] Please combine Figure 2 As shown, the positioning mechanism includes two positioning grooves 11 opened on the bottom side of the annular slot 12. The positioning grooves 11 are conical groove structures. The two positioning grooves 11 are symmetrically distributed. The two clamping blocks 16 are fixedly connected to the side of the through groove 14 with positioning blocks 17. The positioning blocks 17 are conical protrusion structures. Each positioning block 17 is configured to cooperate with the clamping block 16 on the same side.

[0026] By interlocking the positioning block 17 with the positioning groove 11, the boring head connecting rod 10 can be precisely aligned and locked.

[0027] Please combine Figure 3 As shown, the clamping block drive mechanism includes a second slider 3 fixedly connected to the outer sides of the two clamping blocks 16 respectively. A boring base 1 is fixedly connected to the lower side of the tool holder 4. Two first slide grooves 22 are opened on the boring base 1. A first slider 2 is slidably connected to the inner side of the two first slide grooves 22 respectively. The upper side of each first slider 2 is fixedly connected to the lower side of the corresponding second slider 3 on the same side. A slider drive mechanism is provided on the inner side of the boring base 1 to make the two first sliders 2 move closer or further apart.

[0028] Please combine Figure 4 and Figure 5 As shown, the slider drive mechanism includes a push block 19 that is slidably connected to the inner side of the boring base 1. The push block 19 has a disc structure and two wedge-shaped grooves 21 are provided on the push block 19. Two first sliders 2 are respectively fixedly connected to the side of the push block 19. Each wedge-shaped groove 20 is slidably connected to the inner side of the corresponding wedge-shaped groove 21 on the same side. The lower side of the boring base 1 is provided with a push block drive mechanism that makes the push block 19 move up and down reciprocally.

[0029] It should be noted that in this embodiment, when the push block 19 moves downward, the two wedge-shaped locking blocks 20 move closer to each other, causing the two clamping blocks 16 to clamp them; when the push block 19 moves upward, the two wedge-shaped locking blocks 20 move apart, causing the two clamping blocks 16 to move away from each other.

[0030] Please combine Figure 4 As shown, the push block drive mechanism includes a limiting platform 9 fixedly connected to the lower side of the boring base 1. An internal hex bolt 18 is rotatably connected to the lower side of the limiting platform 9, and the upper end of the internal hex bolt 18 is threadedly connected to the push block 19.

[0031] Please combine Figure 1 As shown, the milling boring tool mechanism includes a boring bar 6 fixedly connected to one end of the jack 5, a tool holder 7 fixedly connected to one end of the boring bar 6, and a cutting tool 8 mounted on the tool holder 7. The cutting tool 8 and the tool holder 7 are detachable, and cutting tools 8 of different materials can be replaced according to different turning materials.

[0032] The implementation principle of a combined alloy boring tool for milling in this embodiment is as follows: When the boring tool needs to be assembled with the milling machine spindle, the rib 5 is first inserted into the rib groove 13, so that the boring head connecting rod 10 passes through the through groove 14 and comes out from the other side of the tool holder 4. Through the fine adjustment mechanism module at one end of the boring head connecting rod 10, the insert 8 can be finely adjusted. The fine adjustment content is not protected by this application. Then, the internal hex bolt 18 is rotated, which drives the push block 19 to descend along the inner side of the boring seat 1. Through the wedge-shaped slide groove 21, the two wedge-shaped locking blocks 20 are driven to move closer to each other, thereby driving the first slider 2 and the second slider 3 on both sides to move closer to each other, indirectly driving the clamping blocks 16 on both sides to move closer to each other, clamping the annular groove 12 on the boring head connecting rod 10. In addition, the positioning block 17 inside the clamping block 16 realizes the centering and supporting of the positioning groove 11, thereby realizing the rapid assembly of the boring tool and the tool holder 4.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A combined alloy boring tool for milling, comprising a tool holder (4), characterized in that, The inner side of the handle (4) has a limiting groove (15), and two mutually paired clamping blocks (16) are slidably connected to the inner side of the limiting groove (15). The outer side of the handle (4) has a ribbed groove (13), and a through groove (14) is formed in the ribbed groove (13) near the bottom of the limiting groove (15). The through groove (14) extends out from the side of the handle (4) away from the ribbed groove (13). A ribbed rod (5) is inserted into the inner side of the ribbed groove (13), and the ribbed rod (5) is close to the limiting groove. A boring bar (10) is fixedly connected to one side of (15). An annular groove (12) is provided on the boring bar (10). Two clamping blocks (16) are fitted to the inner side of the annular groove (12). A positioning mechanism is provided between the clamping blocks (16) and the boring bar (10). A clamping block driving mechanism is provided on the lower side of the tool holder (4) to open or close the two clamping blocks (16) to each other. A milling boring tool mechanism is provided at the end of the rib (5) away from the boring bar (10).

2. The combined alloy boring tool for milling as described in claim 1, characterized in that, The positioning mechanism includes two positioning slots (11) opened on the bottom side of the annular slot (12). The two positioning slots (11) are symmetrically distributed. The two clamping blocks (16) are fixedly connected to a positioning block (17) on the side near the through slot (14). Each positioning block (17) is configured to cooperate with the clamping block (16) on the same side.

3. A combined alloy boring tool for milling as described in claim 1, characterized in that, The clamping block driving mechanism includes a second slider (3) fixedly connected to the outer side of the two clamping blocks (16), a boring base (1) fixedly connected to the lower side of the tool holder (4), two first slide grooves (22) are opened on the boring base (1), and a first slider (2) is slidably connected to the inner side of the two first slide grooves (22). The upper side of each first slider (2) is fixedly connected to the lower side of the second slider (3) on the same side. The inner side of the boring base (1) is provided with a slider driving mechanism that makes the two first sliders (2) move closer or further away from each other.

4. A combined alloy boring tool for milling as described in claim 3, characterized in that, The slider driving mechanism includes a push block (19) that is slidably connected to the inner side of the boring base (1). Two wedge-shaped grooves (21) are provided on the push block (19). Two first sliders (2) are respectively fixedly connected to wedge-shaped locking blocks (20) on the side near the push block (19). Each wedge-shaped locking block (20) is slidably connected to the inner side of the corresponding wedge-shaped groove (21) on the same side. The lower side of the boring base (1) is provided with a push block driving mechanism that makes the push block (19) move up and down reciprocally.

5. A combined carbide boring tool for milling as described in claim 4, characterized in that, The push block driving mechanism includes a limiting platform (9) fixedly connected to the lower side of the boring base (1). The lower side of the limiting platform (9) is rotatably connected to an internal hexagon bolt (18), and the upper end of the internal hexagon bolt (18) is threadedly connected to the push block (19).

6. A combined carbide boring tool for milling as described in claim 1, characterized in that, The milling boring tool mechanism includes a boring bar (6) fixedly connected to one end of the spur bar (5), and a tool holder (7) fixedly connected to one end of the boring bar (6), on which a cutting tool (8) is mounted.

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