Replaceable deep groove milling cutter

Abstract

The utility model relates to a replaceable deep groove milling cutter, and belongs to the field of milling cutters, the replaceable deep groove milling cutter comprises a cutter handle, a deformation part, a blade and a clamping part, the deformation part is arranged on the cutter handle, the deformation part and the cutter handle form a mounting groove allowing the blade to be clamped in, and the blade is slidably inserted in the side wall of the mounting groove; the clamping part is arranged on the cutter handle and used for driving the deformation part to deform in the direction close to the blade. The blade replacement device has the beneficial effects that a worker pulls out a damaged blade from the mounting groove, then inserts the replaced blade into the mounting groove, and drives the deformation part to deform in the direction close to the blade through the clamping part again, so that the replaced blade is clamped on the cutter handle through the deformation part, blade replacement can be completed, and the whole cutter does not need to be replaced; and the use cost of the deep groove milling cutter is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of milling cutters, and particularly to a replaceable deep groove milling cutter. Background Art

[0002] The slot milling cutter is a kind of milling cutter and is widely used in the slot milling of various materials. Currently, the general ones on the market are mainly shallow groove milling cutters. For small-width grooves (such as 3 mm and 4 mm), it is difficult to achieve machining with a relatively large single cutting depth for small-width grooves on a machining center.

[0003] Currently, in order to solve the machining problem of small cutting width and large cutting depth, integral saw blade cutters are usually used. However, although the integral saw blade cutter solves the machining problem of small cutting width and large cutting depth, there is a problem that the cutting edge of this kind of integral saw blade cutter cannot be replaced. Once the cutting edge is damaged, the whole cutter is scrapped, resulting in a relatively high use cost of the deep groove milling cutter. Utility Model Content

[0004] In order to reduce the use cost of the deep groove milling cutter, this application provides a replaceable deep groove milling cutter.

[0005] The replaceable deep groove milling cutter provided by this application adopts the following technical solution:

[0006] A replaceable deep groove milling cutter includes a tool shank, a deformation part, a blade, and a clamping part. The deformation part is arranged on the tool shank, and the deformation part and the tool shank form an installation groove for the blade to be inserted. The blade is slidably inserted on the side wall of the installation groove, and the clamping part is arranged on the tool shank and is used to drive the deformation part to deform in the direction close to the blade.

[0007] By adopting the above technical solution, when the blade is damaged, the staff releases the clamping part to drive the deformation part to deform in the direction close to the blade. The deformation part resets and cancels the clamping of the blade on the tool shank. The staff can then draw out the damaged blade from the installation groove, and then insert the replaced blade into the installation groove. Then, the clamping part is used to drive the deformation part to deform in the direction close to the blade again, so that the deformation part clamps the replaced blade on the tool shank, and the replacement of the blade can be completed. There is no need to replace the whole cutter, effectively reducing the use cost of the deep groove milling cutter.

[0008] Optionally, deformation grooves are opened on the tool shank on both sides of the deformation part.

[0009] By adopting the above technical solution, the deformation grooves on both sides of the deformation part provide a deformation space for the deformation part, so that the deformation part can have better deformation ability.

[0010] Optionally, the clamping part includes a tightening bolt and a pin. The tightening bolt is rotatably arranged on the tool handle. A tensioning groove is formed between the tool handle and the side of the deformation part away from the blade. The diameter of the tensioning groove gradually decreases from the direction away from the tightening bolt to the direction close to the tightening bolt. The pin is slidably arranged on the side wall of the tensioning groove and is threadedly connected with the tightening bolt.

[0011] By adopting the above technical solution, the operator rotates the tightening bolt, so that the pin moves towards the tightening bolt on the side wall of the tensioning groove. During the movement of the pin, the side wall of the tensioning groove is extruded, and the deformation part can be conveniently and quickly deformed towards the direction close to the blade.

[0012] Optionally, a first limiting part is arranged on the side wall of the deformation part, and a first sliding groove for the first limiting part to be inserted into is formed on the side wall of the blade.

[0013] By adopting the above technical solution, when the blade is inserted into the installation groove, the first limiting part is fitted into the first sliding groove, and the side wall of the first sliding groove abuts against the first limiting part, improving the stability of the blade in the installation groove.

[0014] Optionally, a second limiting part is arranged on the tool handle, and a second sliding groove for the second limiting part to be inserted into is formed on the side wall of the blade.

[0015] By adopting the above technical solution, when the blade is inserted into the installation groove, the second limiting part is inserted into the second sliding groove, and the side wall of the second sliding groove abuts against the second limiting part, further improving the stability of the blade in the installation groove.

[0016] Optionally, a groove is formed on the bottom wall of the second sliding groove, and a fitting part for being inserted into the groove is arranged on the second limiting part.

[0017] By adopting the above technical solution, when the second limiting part slides on the side wall of the sliding groove until the fitting part is opposite to the groove, the fitting part is inserted into the groove, and the side wall of the fitting part abuts against the side wall of the groove, improving the stability of the blade installation.

[0018] Optionally, the cutting part of the blade is arranged in a frustum of a cone.

[0019] By adopting the above technical solution, the cutting part of the blade arranged in a frustum of a cone can have an inclined angle, which is beneficial to chip removal during the cutting process.

[0020] Optionally, a plurality of deformation parts are circumferentially arranged at intervals on the tool handle.

[0021] By adopting the above technical solution, the installation of a plurality of deformation parts enables the operator to install a plurality of blades according to requirements, effectively improving the processing efficiency.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The staff member withdraws the damaged blade from the installation groove, then inserts the replacement blade into the installation groove, and drives the deformation part to deform towards the direction close to the blade again through the clamping part, so that the deformation part clamps the replacement blade on the tool handle, and the replacement of the blade can be completed without replacing the whole tool, effectively reducing the use cost of the deep groove milling cutter;

[0024] 2. The pin moves towards the direction close to the tightening bolt on the side wall of the tensioning groove, and the pin squeezes the side wall of the tensioning groove during the movement, so that the deformation part can be conveniently and quickly deformed towards the direction close to the blade;

[0025] 3. The fitting part is snapped into the groove, and the fitting part abuts against the side wall of the groove, improving the stability of the blade installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural view of the replaceable deep groove milling cutter according to an embodiment of the present application.

[0027] Figure 2 is a schematic structural view of the explosion of the clamping part away from the tool handle according to an embodiment of the present application.

[0028] Figure 3 is a schematic structural view of the explosion of the blade away from the tool handle according to an embodiment of the present application.

[0029] Figure 4 is a schematic structural view of the explosion of the blade away from the tool handle from another perspective according to an embodiment of the present application.

[0030] Reference numerals: 1, tool handle; 2, deformation part; 3, blade; 31, first chute; 32, second chute; 33, groove; 4, clamping part; 41, tightening bolt; 42, pin; 5, installation groove; 6, deformation groove; 7, tensioning groove; 8, first limiting part; 9, second limiting part; 10, fitting part; 11, abutting part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following further describes the present application in detail with reference to the attached Figures 1-4 drawings.

[0032] An embodiment of the present application discloses a replaceable deep groove milling cutter.

[0033] Referring to Figure 1 , the replaceable deep groove milling cutter includes a tool handle 1, a deformation part 2, a blade 3 and a clamping part 4.

[0034] Referring to Figure 1 , Figure 2, a plurality of deformation parts 2 are circumferentially and spacedly installed on the tool handle 1. In this embodiment, six deformation parts 2 are circumferentially and equally spacedly installed on the tool handle 1. An installation groove 5 for the blade 3 to be inserted is formed between each deformation part 2 and the tool handle 1. The blade 3 is slidably inserted on the side wall of the installation groove 5. In this embodiment, an abutting part 11 is installed on the bottom wall of the installation groove 5. When the blade 3 is inserted into the installation groove 5 and abuts against the abutting part 11, the blade 3 moves to a set installation position in the installation groove 5, which is convenient for the staff to position and install the blade 3 in the installation groove 5.

[0035] Refer to Figure 1 , Figure 2 , the clamping part 4 is installed on the tool handle 1. The clamping part 4 is used to drive the deformation part 2 to deform in the direction close to the blade 3. The clamping part 4 includes a tightening bolt 41 and a pin 42. A tensioning groove 7 is formed between the tool handle 1 and the side of the deformation part 2 away from the blade 3. The opening diameter of the tensioning groove 7 gradually decreases from the direction away from the tightening bolt 41 to the direction close to the tightening bolt 41. The tightening bolt 41 is rotatably installed on the tool handle 1 and extends into the tensioning groove 7. The pin 42 is slidably inserted into the tensioning groove 7 and abuts against the side wall of the tensioning groove 7.

[0036] When the blade 3 is damaged, the staff turns the tightening bolt 41, so that the pin 42 moves in the direction away from the tightening bolt 41, so that the pin 42 moves from the end with a smaller opening diameter of the tensioning groove 7 to the end with a larger opening diameter. The pin 42 reduces the extrusion effect on the deformation part 2, and the deformation part 2 restores the deformation in the direction away from the blade 3, thereby releasing the clamping of the blade 3 on the tool handle 1 by the deformation part 2 in the direction close to the blade 3. The staff can then pull out the damaged blade 3 from the installation groove 5, and then insert the replacement blade 3 into the installation groove 5. Then turn the tightening bolt 41 in the reverse direction, so that the pin 42 moves in the direction close to the tightening bolt 41, and the pin 42 moves from the end with a larger opening diameter of the tensioning groove 7 to the end with a smaller opening diameter, enhancing the extrusion effect on the deformation part 2, so that the deformation part 2 deforms in the direction close to the blade 3, and the deformation part 2 squeezes the blade 3 to clamp the blade 3 on the tool handle 1, and the replacement of the blade 3 can be completed conveniently and quickly without replacing the whole tool, effectively reducing the use cost of the end mill, and through the six deformation parts 2 circumferentially and equally spacedly installed on the tool handle 1, the staff can install the six blades 3 on the tool handle 1 at the same time, effectively improving the processing efficiency of the end mill.

[0037] Refer to Figure 1 , Figure 2 , deformation grooves 6 are formed on the tool handle 1 on both sides of the deformation part 2 close to the tool handle 1. The deformation grooves 6 provide a deformation space for the deformation part 2, so that the deformation part 2 can have better deformation ability under the extrusion of the pin 42 and can better restore the deformation.

[0038] Refer toFigure 2 , Figure 3 , the cutting part of the blade 3 is arranged in a conical table shape. The cutting part of the blade 3 arranged in a conical table shape can have an inclination angle, which is beneficial to the discharge of chips during the machining process, and thus beneficial to the machining of deep grooves.

[0039] Referring to Figure 3 , Figure 4 , a first limiting part 8 is installed on the side wall of the deformation part 2 close to the blade 3 along the length direction of the deformation part 2. A first sliding groove 31 is opened on the side of the blade 3 close to the deformation part 2, and the first sliding groove 31 is used for the first limiting part 8 to be inserted; a second limiting part 9 is installed on the side of the tool handle 1 close to the blade 3 along the length direction of the blade 3. A second sliding groove 32 is opened on the side of the blade 3 far from the deformation part 2, and the second sliding groove 32 is used for the second limiting part 9 to be inserted.

[0040] When the staff inserts the blade 3 into the installation groove 5 for installation, the first limiting part 8 is inserted into the first sliding groove 31, the second limiting part 9 is inserted into the second sliding groove 32, the side wall of the first sliding groove 31 abuts against the first limiting part 8, and the side wall of the second sliding groove 32 abuts against the second limiting part 9, so that the blade 3 can only slide along the depth direction of the installation groove 5, limiting the blade 3 and effectively improving the stability of the blade 3 in the installation groove 5.

[0041] Referring to Figure 3 , Figure 4 , a groove 33 is opened on the bottom wall of the second sliding groove 32, and a fitting part 10 is arranged on the second limiting part 9. The fitting part 10 is used to be inserted into the groove 33 when the blade 3 abuts against the abutting part 11. When the blade 3 slides into the installation groove 5, the side wall of the second sliding groove 32 abuts against the fitting part 10 first, and the blade 3 squeezes the deformation part 2 to deform in the direction away from the blade 3. When the blade 3 slides to abut against the abutting part 11, the groove 33 and the fitting part 10 are opposite, and the deformation part 2 squeezes the blade 3 so that the fitting part 10 is inserted into the groove 33, and the fitting part 10 abuts against the side wall of the groove 33, further improving the stability of the installation of the blade 3.

[0042] The implementation principle of the replaceable deep groove milling cutter in the embodiment of the present application is as follows: after the blade 3 is damaged, the staff turns the tightening bolt 41, and the pin 42 moves in the direction away from the tightening bolt 41, and the deformation part 2 restores its deformation. The staff takes out the damaged blade 3 from the installation groove 5, then inserts the replaced blade 3 into the installation groove 5, and then turns the tightening bolt 41 in the reverse direction, so that the pin 42 moves in the direction close to the tightening bolt 41 and squeezes the deformation part 2, and the deformation part 2 deforms in the direction close to the blade 3, thereby clamping the blade 3 on the tool handle 1, and cooperating with the positioning of the first limiting part 8, the second limiting part 9 and the fitting part 10 for the blade 3, the replacement and stable installation of the blade 3 can be completed, without replacing the whole tool, effectively reducing the use cost of the deep groove milling cutter.

[0043] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A replaceable deep slot milling cutter, characterized in that: The knife comprises a knife handle (1), a deformation part (2), a blade (3) and a clamping part (4), wherein the deformation part (2) is arranged on the knife handle (1), the deformation part (2) and the knife handle (1) form a mounting groove (5) for the blade (3) to be inserted into, the blade (3) is slidably inserted on the side wall of the mounting groove (5), and the clamping part (4) is arranged on the knife handle (1) and is used to drive the deformation part (2) to deform in a direction close to the blade (3).

2. The replaceable deep slot milling cutter according to claim 1, characterized in that: Deformation grooves (6) are provided on the knife handle (1) on both sides of the deformation portion (2).

3. The replaceable deep slot milling cutter according to claim 1, characterized in that: The clamping portion (4) comprises a tightening bolt (41) and a pin (42); the tightening bolt (41) is rotatably mounted on the shank (1); a tensioning groove (7) is formed on the shank (1) and the deformation portion (2) on a side away from the blade (3); the diameter of the tensioning groove (7) gradually decreases from a direction away from the tightening bolt (41) to a direction close to the tightening bolt (41); and the pin (42) is slidably mounted on a side wall of the tensioning groove (7) and is threadedly connected to the tightening bolt (41).

4. The replaceable deep slot milling cutter according to claim 1, characterized in that: A first limiting portion (8) is provided on the side wall of the deformation portion (2), and a first sliding groove (31) for the first limiting portion (8) to be inserted is provided on the side wall of the blade (3).

5. The replaceable deep slot milling cutter according to claim 4, characterized in that: The knife handle (1) is provided with a second limiting portion (9), and the side wall of the blade (3) is provided with a second sliding groove (32) for the second limiting portion (9) to be inserted into.

6. The replaceable deep slot milling cutter according to claim 5, characterized in that: A groove (33) is provided on the bottom wall of the second sliding groove (32), and an engaging portion (10) for being inserted into the groove (33) is provided on the second limiting portion (9).

7. The replaceable deep slot milling cutter according to claim 1, characterized in that: The cutting portion of the blade (3) is arranged in a conical shape.

8. The replaceable deep slot milling cutter according to claim 1, characterized in that: A plurality of the deformation portions (2) are arranged at intervals circumferentially on the shank (1).

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