Composite cutting tool for cutting

Abstract

The utility model belongs to the technical field of machining cutters, and particularly relates to a compound cutter for cutting, which comprises a cutter holder, a first cutter handle, a second cutter handle and a cutter head, the second cutter handle is rotationally mounted in the mounting opening, the second cutter handle and the first cutter handle are symmetrically distributed, and a second cutter head is fixed to the second cutter handle; a third knife handle; the driving mechanism is connected to the first cutter handle and the second cutter handle in a drivable manner and is used for driving the first cutter handle and the second cutter handle to synchronously rotate in opposite directions; according to the utility model, the driving mechanism drives the first cutter handle and the second cutter handle to synchronously rotate in opposite directions, so that not only can the working angles of the first cutter handle and the second cutter handle be adjusted to meet different processing requirements, but also the first cutter handle and the second cutter handle can be stored in the mounting opening to avoid influencing the operation of the third cutter head; and the machining safety and efficiency are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of machining tool technology, and specifically relates to a composite cutting tool. Background Technology

[0002] Cutting tools are tools used for cutting processes in mechanical manufacturing. They are divided into metal cutting tools, woodworking tools, and mining tools, etc. Machining tools are mainly used for metal cutting, and common types include turning tools, milling cutters, drills, boring tools, and reamers.

[0003] Currently, for some scenarios that require milling cutters of different specifications for cutting operations, after the previous stage of machining is completed, it is necessary to change to different milling cutters on the tool holder to perform cutting operations again, which leads to a significant reduction in machining efficiency.

[0004] A search revealed that Chinese utility model patent CN222520525U discloses "a composite cutting tool", comprising: a tool holder, a first cutting tool assembly, and a second cutting tool assembly; the tool holder is provided with a support rod; the first cutting tool assembly includes a first cutting bar and at least one turning tool head or boring tool head, the turning tool head or boring tool head is located at the end of the first cutting bar, the first cutting bar is connected to the support rod and is set at an angle to the support rod; the second cutting tool includes a second cutting bar and a hobbing head assembly, the hobbing head assembly is installed at the end of the second cutting bar.

[0005] Although existing composite cutting tools, including those mentioned above, can perform different machining operations without changing the cutting tools, in actual use, in order to avoid the first cutting tool assembly affecting the operation of the second cutting tool assembly, the first cutting tool assembly usually needs to be disassembled during actual machining, which is quite inconvenient.

[0006] To address the aforementioned problems, this utility model proposes a composite cutting tool. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a composite cutting tool that is easy to use and has high processing efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a composite cutting tool, including a tool holder, on which an mounting opening is machined, and further comprising:

[0009] A first tool holder is rotatably mounted in the mounting opening, and a first tool head is fixed on the first tool holder;

[0010] The second tool holder is rotatably mounted in the mounting opening and is symmetrically distributed with respect to the first tool holder, and a second tool head is fixed on the second tool holder;

[0011] The third tool holder is fixed on the tool holder, and a third tool head is fixed on the third tool holder;

[0012] A drive mechanism is drivably connected to the first tool holder and the second tool holder, for driving the first tool holder and the second tool holder to rotate synchronously in opposite directions.

[0013] As a preferred embodiment of this utility model, the driving mechanism includes:

[0014] Half gears are fixed at the proximal ends of both the first and second tool holders;

[0015] The mounting shaft is used to rotatably mount the half gear into the mounting port.

[0016] A double-sided rack, wherein the double-sided rack is slidably installed in the mounting opening and meshes with the half gear;

[0017] A cylinder is fixed inside the mounting port, and the piston rod of the cylinder is fixedly connected to the double-sided rack.

[0018] In a preferred embodiment of this invention, the end face of the half gear abuts against the inner wall of the mounting port.

[0019] As a preferred embodiment of this utility model, the outer wall of the double-sided rack abuts against the inner wall of the mounting opening.

[0020] As a preferred embodiment of this utility model, the driving mechanism further includes:

[0021] The limiting rods are fixed at intervals within the mounting opening, and guide holes for the limiting rods to pass through are machined on the double-sided rack.

[0022] As a preferred technical solution of this utility model, it also includes:

[0023] The countersunk screw has a square cross-section and a mounting groove for embedding the third tool holder is machined on the tool holder. The countersunk screw is installed on the tool holder by thread engagement, and a positioning groove for embedding the countersunk screw is machined on the outer wall of the third tool holder.

[0024] In a preferred embodiment of this invention, the outer wall of the third tool holder abuts against the inner wall of the mounting groove.

[0025] As a preferred embodiment of this utility model, the countersunk screws are symmetrically distributed in two groups, and the countersunk screws in the same group are spaced apart by two.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] In this invention, a drive mechanism drives the first and second tool holders to rotate synchronously in opposite directions. This not only adjusts the working angles of the first and second tool holders to meet different processing requirements, but also allows the first and second tool holders to be retracted into the mounting opening to avoid affecting the operation of the third cutting head, thus significantly improving processing safety and efficiency.

[0028] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0032] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the diagram;

[0033] Figure 4 This is a schematic diagram of the isometric structure of the third tool holder in this utility model;

[0034] Figure 5 This utility model Figure 2 A magnified structural diagram at point B in the diagram.

[0035] In the diagram: 1. Tool holder; 101. Mounting port; 102. Mounting slot; 2. First tool holder; 201. First cutting head; 3. Second tool holder; 301. Second cutting head; 4. Third tool holder; 401. Third cutting head; 402. Positioning slot; 5. Drive mechanism; 501. Half gear; 502. Mounting shaft; 503. Double-sided rack; 5031. Guide slide hole; 504. Cylinder; 505. Limiting rod; 6. Countersunk screw. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figures 1-5 The present invention provides the following technical solution: a composite cutting tool, including a tool holder 1, on which an installation port 101 is machined, and further including: a first tool holder 2, a second tool holder 3, a third tool holder 4 and a driving mechanism 5.

[0038] Furthermore, by Figure 1 and Figure 2 As shown, in this embodiment, the first tool holder 2 is rotatably mounted in the mounting port 101, and a first cutting head 201 is fixed on the first tool holder 2. The second tool holder 3 is rotatably mounted in the mounting port 101 and symmetrically distributed with the first tool holder 2, and a second cutting head 301 is fixed on the second tool holder 3. The third tool holder 4 is fixed on the tool holder 1, and a third cutting head 401 is fixed on the third tool holder 4. The drive mechanism 5 is drivably connected to the first tool holder 2 and the second tool holder 3, and is used to drive the first tool holder 2 and the second tool holder 3 to rotate synchronously in opposite directions. With the above scheme, in use, the tool holder 1 is fixed to the output shaft of the machine tool, and the operation of the composite tool is controlled by the output shaft of the machine tool; when the first cutting head 201 and the second cutting head 301 are used for operation, the drive mechanism 5 is activated to drive the first tool holder 2 and the second tool holder 3 to rotate synchronously in opposite directions. The first and second cutting heads 201 and 301 rotate synchronously in opposite directions, causing them to flip to the outside of the mounting opening 101, and their working angles can be adjusted. When the third cutting head 401 is used for operation, the drive mechanism 5 is activated to drive the first and second cutting heads 2 and 3 to rotate in opposite directions, causing the first and second cutting heads 201 and 301 to retract into the mounting opening 101, so as not to affect the operation of the third cutting head 401. This utility model, by setting the drive mechanism 5 to drive the first and second cutting heads 2 and 3 to rotate synchronously in opposite directions, can not only adjust the working angles of the first and second cutting heads 2 and 3 to meet different processing needs, but also retract the first and second cutting heads 2 and 3 into the mounting opening 101 to avoid affecting the operation of the third cutting head 401, thus greatly improving the safety and efficiency of processing.

[0039] Optionally, by Figure 1 and Figure 2As shown, in this embodiment, the drive mechanism 5 includes: a half gear 501, a mounting shaft 502, a double-sided rack 503, and a cylinder 504. Half gears 501 are fixed to the proximal ends of both the first tool holder 2 and the second tool holder 3. The half gears 501 are rotatably mounted in the mounting port 101 via the mounting shaft 502. The double-sided rack 503 is slidably mounted in the mounting port 101 and meshes with the half gears 501. The cylinder 504 is fixed in the mounting port 101, and the piston rod of the cylinder 504 is fixedly connected to the double-sided rack 503. With the above scheme, during use, the cylinder 504 is activated, and the piston rod of the cylinder 504 drives the double-sided rack 503 to move. The double-sided rack 503 drives the half gears 501 to rotate through meshing. The two half gears 501 respectively drive the first tool holder 2 and the second tool holder 3 to rotate, causing the first tool holder 2 and the second tool holder 3 to rotate synchronously in opposite directions.

[0040] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, the end face of the half gear 501 abuts against the inner wall of the mounting port 101. With the above solution, this close fit has high stability during use, greatly improving the stability of the half gear 501 and preventing the half gear 501 from shaking during operation.

[0041] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, the outer wall of the double-sided rack 503 abuts against the inner wall of the mounting port 101. With the above solution, this close fit has high stability during use, greatly improving the stability of the double-sided rack 503 and preventing the double-sided rack 503 from shaking during operation.

[0042] Preferably, by Figure 1 , Figure 2 and Figure 5 As shown in this embodiment, the drive mechanism 5 further includes: a limiting rod 505, two limiting rods 505 fixed at intervals within the mounting port 101, and a guide sliding hole 5031 for the limiting rods 505 to pass through is machined on the double-sided rack 503. With the above solution, during use, the two limiting rods 505 cooperate with the guide sliding hole 5031 to support and guide the double-sided rack 503, while limiting the movement range of the double-sided rack 503, thereby improving the stability and safety of the double-sided rack 503.

[0043] Optionally, by Figure 1 , Figure 3 and Figure 4As shown, this embodiment also includes: a countersunk screw 6, the third tool holder 4 has a square cross-section, and a mounting groove 102 for the third tool holder 4 to be inserted is machined on the tool holder 1. The countersunk screw 6 is installed on the tool holder 1 by thread engagement, and a positioning groove 402 for the countersunk screw 6 to be inserted is machined on the outer wall of the third tool holder 4. With the above solution, the third tool holder 4 is installed and fixed by the countersunk screw 6 during use, which is convenient for installation and also convenient for disassembling the third tool holder 4.

[0044] Furthermore, since the cross-section of the third tool holder 4 is square, its orientation can be changed according to actual machining requirements during actual use.

[0045] Preferably, by Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, the outer wall of the third tool holder 4 abuts against the inner wall of the mounting groove 102. With the above solution, this close fit has high stability during use, greatly improving the stability of the third tool holder 4 and preventing the third tool holder 4 from shaking during operation.

[0046] Preferably, by Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, there are two sets of countersunk screws 6 symmetrically distributed, and two countersunk screws 6 in the same set are spaced apart, which has a high clamping force and further improves the stability of the third tool holder 4 installation.

[0047] Components not described in detail in this article are existing technologies.

[0048] The working principle and usage process of this utility model: When using the composite cutting tool of this utility model, the tool holder 1 is fixed to the output shaft of the machine tool, and the operation of the composite tool is controlled by the output shaft of the machine tool.

[0049] When the first cutter head 201 and the second cutter head 301 are used for operation, the drive mechanism 5 is activated to drive the first cutter handle 2 and the second cutter handle 3 to rotate synchronously in opposite directions, so that the first cutter head 201 and the second cutter head 301 are flipped to the outside of the mounting port 101, and the working angle of the first cutter head 201 and the second cutter head 301 can be adjusted.

[0050] When the third cutter head 401 is used for operation, the drive mechanism 5 is activated to drive the first cutter handle 2 and the second cutter handle 3 to rotate in opposite directions, so that the first cutter head 201 and the second cutter head 301 are put into the mounting port 101, so as not to affect the operation of the third cutter head 401.

[0051] This utility model uses a drive mechanism 5 to drive the first tool holder 2 and the second tool holder 3 to rotate synchronously in opposite directions. This not only allows for adjustment of the working angles of the first tool holder 2 and the second tool holder 3 to meet different processing requirements, but also allows the first tool holder 2 and the second tool holder 3 to be retracted into the mounting port 101 to avoid affecting the operation of the third cutting head 401, thus greatly improving the safety and efficiency of processing.

[0052] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A composite cutting tool, comprising a tool holder (1) having a mounting opening (101) machined on the tool holder (1), characterized in that, Also includes: A first knife handle (2) is rotatably mounted in the mounting port (101), and a first knife head (201) is fixed on the first knife handle (2); The second handle (3) is rotatably installed in the mounting port (101) and symmetrically distributed with respect to the first handle (2), and a second cutter head (301) is fixed on the second handle (3); The third tool holder (4) is fixed on the tool holder (1), and a third tool head (401) is fixed on the third tool holder (4); A drive mechanism (5) is drivably connected to the first tool holder (2) and the second tool holder (3) for driving the first tool holder (2) and the second tool holder (3) to rotate synchronously in opposite directions.

2. A composite cutting tool according to claim 1, characterized in that: The drive mechanism (5) includes: Half gear (501) is fixed at the proximal end of both the first tool holder (2) and the second tool holder (3); Mounting shaft (502), the half gear (501) is rotatably mounted in the mounting port (101) by means of mounting shaft (502); A double-sided rack (503) is slidably installed in the mounting port (101) and meshes with the half gear (501); A cylinder (504) is fixed inside the mounting port (101), and the piston rod of the cylinder (504) is fixedly connected to the double-sided rack (503).

3. A composite cutting tool according to claim 2, characterized in that: The end face of the half gear (501) abuts against the inner wall of the mounting port (101).

4. A composite cutting tool according to claim 2, characterized in that: The outer wall of the double-sided rack (503) abuts against the inner wall of the mounting port (101).

5. A composite cutting tool according to claim 2, characterized in that: The drive mechanism (5) further includes: Limiting rods (505), two limiting rods (505) are fixed at intervals in the mounting port (101), and guide sliding holes (5031) are machined on the double-sided rack (503) for the limiting rods (505) to pass through.

6. A composite cutting tool according to claim 1, characterized in that: Also includes: The countersunk screw (6) has a square cross-section and a mounting groove (102) for the third tool holder (4) to be inserted into is machined on the tool holder (1). The countersunk screw (6) is installed on the tool holder (1) by thread engagement and a positioning groove (402) for the countersunk screw (6) to be inserted into is machined on the outer wall of the third tool holder (4).

7. A composite cutting tool according to claim 6, characterized in that: The outer wall of the third tool holder (4) abuts against the inner wall of the mounting groove (102).

8. A composite cutting tool according to claim 6, characterized in that: The countersunk screws (6) are symmetrically distributed in two groups, and there are two countersunk screws (6) in the same group at intervals.

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