Cutting tool stable in clamping

Abstract

The utility model relates to the technical field of cutting tools, in particular to a cutting tool stable in clamping, which comprises a connector, a clamping sleeve fixedly sleeved at the bottom of the connector, a tool handle sleeved at the bottom of the clamping sleeve, a tool bit sleeved in the tool handle, and limiting grooves arranged on the outer ring surfaces of the tool handle and the tool bit. Steel columns are slidably inserted into the limiting grooves, limiting holes are formed in the surfaces of the steel columns, and limiting columns are arranged on the upper sides of the limiting holes; the tool has the beneficial effects that the tool handle is arranged at the bottom of the clamping sleeve in a sleeving mode, the tool bit is slidably inserted into the tool handle, at the moment, through sliding connection of the limiting groove and one end of the steel column, one end of the steel column is partially inserted into the limiting groove formed in the tool bit and the tool handle, and then the limiting column is inserted into the limiting hole, so that the steel column is limited and fixed through the limiting column; and when the tool bit 4 needs to be disassembled, only the limiting column and the steel column need to be pulled out, and the tool body can be conveniently, simply and rapidly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a cutting tool with stable clamping. Background Art

[0002] Cutting tools are tools used for cutting in mechanical manufacturing. Since the tools used in mechanical manufacturing are basically used to cut metal materials, the term "tools" is generally understood to refer to metal cutting tools. Cutting tools include rotating cutting tools and reciprocating linear motion tools. High-speed cutting tools have higher rotation speeds or reciprocating cutting speeds than conventional tools, so a more secure and stable tool clamping method is required.

[0003] In the prior art, most of the current cutting tools are integrally formed, that is, the tool and the tool holder are integrally formed. During the clamping and installation process of the cutting tool, when different metal workpieces need to be cut, the tool holder is also replaced when the tool is replaced, wasting the raw materials for producing the tool holder. Utility Model Content

[0004] The purpose of the utility model is to provide a cutting tool with stable clamping to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting tool with stable clamping, comprising: a connecting head, a fixing sleeve at the bottom of the connecting head is provided with a clamping sleeve, a tool handle is provided at the bottom of the clamping sleeve, and a tool head is provided inside the tool handle.

[0006] The outer ring surfaces of the tool handle and the tool head are provided with limit grooves, a steel column is slidably inserted in the limit grooves, a limit hole is provided on the surface of the steel column, and a limit column is arranged on the upper side of the limit hole.

[0007] Preferably, a sleeve is provided on the upper fixing sleeve of the clamping sleeve, a stepped hole is opened on the sleeve, a fixing shell is provided on the bottom of the stepped hole, and four fixing shells are provided and arranged in an array around the circumference of the clamping sleeve.

[0008] Preferably, a slide groove is provided on the outer ring surface of the clamping sleeve, a slider is slidably connected in the slide groove, the slider is fixedly connected to one end of the first spring, one end of the first spring is fixedly connected to the inner wall of the clamping sleeve, and a slide hole is provided on one side of the slide groove.

[0009] Preferably, the sliding hole is slidably connected to the steel column, the steel column and the slider are fixedly connected via a connecting plate, a concave hole is provided on the lower surface of the sliding hole, and the concave hole is slidably connected to the limiting column.

[0010] Preferably, the limiting hole is slidably connected to the limiting column, a second spring is sleeved on the outer ring surface of the limiting column, one end of the second spring is fixedly connected to a clamping ring, the clamping ring is movably sleeved in the fixed shell and fixedly sleeved on the limiting column.

[0011] Preferably, a connecting sleeve is fixedly connected to the upper side of the fixed shell, an arc groove is provided on the outer ring surface of the connecting sleeve, a clamping groove is provided at one end of the arc groove, a pin shaft is slidably connected in the arc groove, and a sliding shell is provided on the outer ring surface of the connecting sleeve.

[0012] Preferably, the sliding shell is slidably connected to the fixed shell, an adjusting column is fixedly connected to the top of the sliding shell, one end of the pin shaft is fixedly sleeved in the adjusting column, and the bottom of the adjusting column is rotatably connected to the limiting column.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the connection with the driving device is fixed through the connecting head, the knife handle is arranged at the bottom of the clamping sleeve, and the cutter head is slidably inserted into the knife handle. At this time, the sliding connection with one end of the steel column is made through the limiting groove, so that one end part of the steel column is inserted into the limiting groove provided by the cutter head and the knife handle, so that the knife handle and the cutter head are limited and fixed by the steel column. A limiting hole is provided on the surface of the steel column, and the limiting column is inserted into the limiting hole to limit and fix the steel column, thereby further ensuring the stability of the installation of the cutter head and the cutter handle by the steel column, and avoiding the movement of the cutter head. When the cutter head needs to be disassembled, it is only necessary to pull out the limiting column and the steel column, thereby realizing a simple and quick replacement of the blade, avoiding the situation that the handle is also replaced when the blade body is replaced in the traditional way, which not only saves the raw materials for producing the handle, but also saves the time for making the handle, improves the installation and disassembly efficiency, and improves the practicality and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the external structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 It is a bottom view schematic diagram of the internal structure of the utility model.

[0018] In the figure: 1. Connector; 2. Clamping sleeve; 3. Tool handle; 4. Tool head; 5. Limiting groove; 6. Steel column;

[0019] 7. Limiting hole; 8. Limiting column; 9. Sleeve; 10. Step hole; 11. Fixed shell; 12. Slide groove;

[0020] 13. Sliding block; 14. First spring; 15. Sliding hole; 16. Connecting plate; 17. Concave hole; 18. Second spring; 19. Snap ring; 20. Connecting sleeve; 21. Arc groove; 22. Snap groove; 23. Pin shaft; 24. Sliding shell;

[0021] 25. Adjusting column. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 4 The utility model provides a technical solution: a cutting tool with stable clamping, comprising: a connecting head 1, a fixing sleeve at the bottom of the connecting head 1 is provided with a clamping sleeve 2, a tool handle 3 is provided at the bottom of the clamping sleeve 2, a tool head 4 is provided inside the tool handle 3, a limiting groove 5 is provided on the outer ring surface of the tool handle 3 and the tool head 4, a steel column 6 is slidably inserted in the limiting groove 5, a limiting hole 7 is provided on the surface of the steel column 6, and a limiting column 8 is provided on the upper side of the limiting hole 7.

[0025] The connecting head 1 is fixedly connected to the driving device, the knife handle 3 is sleeved on the bottom of the clamping sleeve 2, and the cutter head 4 is slidably inserted into the knife handle 3. At this time, the limiting groove 5 is slidably connected to one end of the steel column 6, so that one end of the steel column 6 is partially inserted into the limiting groove 5 provided by the cutter head 4 and the knife handle 3, so that the knife handle 3 and the cutter head 4 are limited and fixed by the steel column 6. A limiting hole 7 is provided on the surface of the steel column 6. By inserting the limiting column 8 into the limiting hole 7, the limiting column 8 limits and fixes the steel column 6, thereby further ensuring the stability of the installation of the cutter head 4 and the knife handle 3 by the steel column 6, and avoiding the movement of the cutter head 4. When the cutter head 4 needs to be disassembled, it is only necessary to pull out the limiting column 8 and the steel column 6, thereby realizing simple and fast replacement of a variety of different blades, avoiding the situation that the knife handle 3 is also replaced when the blade is replaced in the traditional way, which not only saves the raw materials for producing the knife handle 3, but also saves the time for making the knife handle 3.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, a sleeve 9 is provided on the upper side of the clamping sleeve 2, and a stepped hole 10 is provided on the sleeve 9. A fixed shell 11 is provided on the bottom of the stepped hole 10. Four fixed shells 11 are arranged in a circular array about the clamping sleeve 2. The sleeve 9 limits the fixed shell 11. The bottom of the stepped hole 10 is fixedly connected to the fixed shell 11. The upper part of the stepped hole 10 is slidably connected to the sliding shell 24. A sliding groove 12 is provided on the outer ring surface of the clamping sleeve 2. A slider 13 is slidably connected in the sliding groove 12. The slider 13 is connected to the first One end of the spring 14 is fixedly connected, one end of the first spring 14 is fixedly connected to the inner wall of the clamping sleeve 2, a sliding hole 15 is provided on one side of the slide groove 12, the slide groove 12 facilitates the movement of the slider 13, the first spring 14 facilitates the resetting of the steel column 6, the sliding hole 15 is slidingly connected to the steel column 6, the steel column 6 and the slider 13 are fixedly connected through a connecting plate 16, a concave hole 17 is provided on the lower surface of the sliding hole 15, the concave hole 17 is slidingly connected to the limit column 8, the sliding hole 15 limits the steel column 6, and the concave hole 17 facilitates the resetting of the limit column 8.

[0028] By pushing the steel column 6 into the sliding hole 15, the slider 13 is driven to move into the sliding groove 12 through the connecting plate 16, so that the slider 13 compresses the first spring 14, and the steel column 6 is inserted into one end of the sliding hole 15 and continues to move inward until the steel column 6 is inserted into the limiting groove 5 provided by the tool handle 3 and the tool head 4 and stops moving, so that the steel column 6 completes the initial limiting of the tool handle 3 and the tool head 4. At this time, the limiting column 8 moves downward and is inserted into the limiting hole 7, so that the limiting column 8 completes the limiting fixation of the steel column 6, and then the steel column 6 further limits the tool handle 3 and the tool head 4 again, which greatly improves the stability of the installed blade.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, the limiting hole 7 is slidably connected with the limiting column 8, the outer ring surface of the limiting column 8 is sleeved with a second spring 18, one end of the second spring 18 is fixedly connected with a snap ring 19, the snap ring 19 is movably sleeved in the fixed shell 11 and fixedly sleeved on the limiting column 8, the limiting column 8 is limited and fixed through the limiting hole 7, the second spring 18 facilitates the resetting of the limiting column 8, and the snap ring 19 is movably sleeved in the fixed shell 11, so that the snap ring 19 compresses the second spring 18, and a connecting sleeve 20 is fixedly connected to the upper side of the fixed shell 11, and an arc groove 21 is provided on the outer ring surface of the connecting sleeve 20, and a clamping groove is provided at one end of the arc groove 21. 22, a pin shaft 23 is slidably connected in the arc groove 21, a sliding shell 24 is sleeved on the outer ring surface of the connecting sleeve 20, and the arc groove 21 is provided on the connecting sleeve 20, so that the arc groove 21 limits the pin shaft 23, the sliding shell 24 is slidably connected with the fixed shell 11, an adjusting column 25 is fixedly connected to the top of the sliding shell 24, one end of the pin shaft 23 is fixedly sleeved in the adjusting column 25, the bottom of the adjusting column 25 is fixedly connected to the limiting column 8, the adjusting column 25 is sleeved on the top of the limiting column 8 and is rotatably connected to the limiting column 8, so as to facilitate the rotation of the adjusting column 25, and indirectly drive the limiting column 8 to move downward under the rotation action of the adjusting column 25.

[0031] When the steel column 6 is inserted into place, the adjusting column 25 is twisted, and the upper fixed sleeve of the adjusting column 25 is provided with a pin shaft 23. The pin shaft 23 moves downward along the arc groove 21 under the limiting action of the arc groove 21, so that the adjusting column 25 will press the limiting column 8 to move downward, and the retaining ring 19 compresses the second spring 18, and the adjusting column 25 drives the sliding shell 24 to slide downward until the pin shaft 23 is engaged in the retaining groove 22, and the adjusting column 25 stops moving. At this time, the bottom of the limiting column 8 has been inserted into the limiting hole 7, thereby completing the limiting of the steel column 6 by the limiting column 8, avoiding the movement of the steel column 6, and further improving the stability of the installation of the cutter head 4 and the handle 3.

[0032] In actual use, the connecting head 1 is fixedly connected with the driving device, the tool handle 3 is sleeved at the bottom of the clamping sleeve 2, and the tool head 4 is slidably inserted into the tool handle 3. By pushing the steel column 6 into the inside of the sliding hole 15, the slider 13 is driven to move into the inside of the sliding groove 12 through the connecting plate 16, so that the slider 13 compresses the first spring 14, and the end of the steel column 6 inserted in the sliding hole 15 continues to move inward until the steel column 6 is inserted into the limiting groove 5 provided by the tool handle 3 and the tool head 4 and stops moving. The steel column 6 completes the preliminary limiting of the knife handle 3 and the knife head 4. When the steel column 6 is inserted into place, the adjusting column 25 is twisted at this time. The upper fixing sleeve of the adjusting column 25 is provided with a pin shaft 23. The pin shaft 23 moves downward along the arc groove 21 under the limiting action of the arc groove 21, so that the adjusting column 25 presses the limiting column 8 to move downward, the clamping ring 19 compresses the second spring 18, and the adjusting column 25 drives the sliding shell 24 to slide downward until the pin shaft 23 is engaged in the clamping groove 22, and the adjusting column 25 stops. The bottom of the limit column 8 is inserted into the limit hole 7, thereby completing the limit of the limit column 8 steel column 6 and preventing the steel column 6 from moving, further improving the stability of the installation of the cutter head 4 and the handle 3. When the cutter head 4 needs to be disassembled and replaced, the adjusting column 25 is first pressed downward to push the pin shaft 23 out of the card slot 22, and the clamping ring 19 drives the limit column 8 to move upward under the reverse elastic force of the second spring 18, so that the limit column 8 extends out of the limit hole 7. At this time, under the reverse elastic force of the first spring 14, the slider 13 is pushed to move to the outside of the slide slot 12, thereby driving the steel column 6 to move to the outside of the slide hole 15 through the connection of the connecting plate 16, and then one end of the steel column 6 is withdrawn from the limit slot 5, so that the cutter head 4 is easy to disassemble, and a simple and fast replacement of the blade is realized, avoiding the situation that the handle 3 is also replaced when the blade is replaced in the traditional way, which not only saves the raw materials for producing the handle 3, but also saves the time for making the handle 3.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting tool with stable clamping, comprising a connecting head (1), characterized in that: The bottom fixed sleeve of the connector (1) is provided with a clamping sleeve (2), the bottom of the clamping sleeve (2) is provided with a knife handle (3), and the knife handle (3) is provided with a knife head (4); The outer surfaces of the tool handle (3) and the tool head (4) are provided with a limiting groove (5), a steel column (6) is slidably inserted in the limiting groove (5), a limiting hole (7) is provided on the surface of the steel column (6), and a limiting column (8) is arranged on the upper side of the limiting hole (7).

2. A cutting tool with stable clamping according to claim 1, characterized in that: The upper fixed sleeve of the clamping sleeve (2) is provided with a sleeve (9), the sleeve (9) is provided with a stepped hole (10), the bottom fixed sleeve of the stepped hole (10) is provided with a fixed shell (11), four fixed shells (11) are provided and arranged in a circular array about the clamping sleeve (2).

3. A cutting tool with stable clamping according to claim 2, characterized in that: The outer ring surface of the clamping sleeve (2) is provided with a sliding groove (12), a sliding block (13) is slidably connected in the sliding groove (12), the sliding block (13) is fixedly connected to one end of a first spring (14), one end of the first spring (14) is fixedly connected to the inner wall of the clamping sleeve (2), and a sliding hole (15) is provided on one side of the sliding groove (12).

4. A cutting tool with stable clamping according to claim 3, characterized in that: The sliding hole (15) is slidably connected to the steel column (6), the steel column (6) and the slider (13) are fixedly connected via a connecting plate (16), a concave hole (17) is provided on the lower surface of the sliding hole (15), and the concave hole (17) is slidably connected to the limiting column (8).

5. A cutting tool with stable clamping according to claim 4, characterized in that: The limiting hole (7) is slidably connected to the limiting column (8); a second spring (18) is sleeved on the outer ring surface of the limiting column (8); one end of the second spring (18) is fixedly connected to a snap ring (19); the snap ring (19) is movably sleeved in the fixed shell (11) and fixedly sleeved on the limiting column (8).

6. A cutting tool with stable clamping according to claim 5, characterized in that: A connecting sleeve (20) is fixedly connected to the upper side of the fixed shell (11), an arc-shaped groove (21) is provided on the outer ring surface of the connecting sleeve (20), a clamping groove (22) is provided at one end of the arc-shaped groove (21), a pin shaft (23) is slidably connected in the arc-shaped groove (21), and a sliding shell (24) is sleeved on the outer ring surface of the connecting sleeve (20).

7. A cutting tool with stable clamping according to claim 6, characterized in that: The sliding shell (24) is slidably connected to the fixed shell (11); an adjusting column (25) is fixedly connected to the top of the sliding shell (24); one end of the pin shaft (23) is fixedly sleeved in the adjusting column (25); and the bottom of the adjusting column (25) is rotatably connected to the limiting column (8).

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