Cutter bar assembly capable of being stably combined

Abstract

The utility model provides a cutter bar assembly capable of being stably combined. The cutter bar assembly comprises a cutter bar, a cutter, a fixing piece, a bolt and a lock cover. A conical hole, a clamping groove and a lock hole which are communicated with one another are formed in the cutter bar; the cutter is provided with a clamping hole with a polygonal outline, and a conical combination part is inserted into the conical hole of the cutter bar; the fixing piece is provided with a clamping part clamped with the clamping hole and a clamping block clamped with the clamping groove; the bolt penetrates through the fixing piece and is locked in the lock hole in a screwed mode so as to combine the fixing piece and the cutter bar. The lock cover is combined with the cutter bar. The clamping part of the fixing piece is clamped with the clamping hole of the cutter, and the clamping block is clamped with the clamping groove, so that the fixing piece is clamped with the cutter and the cutter bar, the cutter bar and the cutter can be stably combined, and the problems that the existing cutter bar and the cutter are easy to rotate relatively, so that the machining efficiency is poor, and the machining cost is high can be solved. And even negative influences are brought to the machining quality of the workpiece.

Description

[Technical Field]

[0001] This utility model relates to a processing device, and more particularly to a stably coupled tool holder assembly. [Background Technology]

[0002] When machining a workpiece, such as cutting or drilling, the machining spindle is used to drive the cutting tool; and a tool holder is used to connect the cutting tool and the machining spindle.

[0003] Existing tool holder and cutter stabilizing devices include a tool holder and a cutter; the cutter is rod-shaped and includes two opposing ends, one end of which has an insert, and the other end is fixed inside the tool holder. However, when the spindle drives the tool holder and cutter to cut or drill, the workpiece exerts strong resistance on the tool holder and cutter, causing them to easily rotate relative to each other. This relative rotation leads to poor machining efficiency and even negatively impacts the workpiece's machining quality; therefore, there is an urgent need for a stabilizing tool holder assembly that can improve both machining efficiency and quality. [Utility Model Content]

[0004] The technical problem to be solved by this utility model is to provide a stable and integrated tool holder assembly, which solves the problem that the existing tool holder and tool are prone to relative rotation, resulting in poor processing efficiency and even negatively impacting the processing quality of the workpiece.

[0005] This utility model is achieved as follows: a securely coupled tool holder assembly, comprising:

[0006] A tool holder includes two opposite ends, a slot, a tapered hole, and a locking hole; the slot is located inside the tool holder and includes a bottom surface; the tapered hole extends from one end of the tool holder toward the slot and communicates with the slot, and the diameter of the tapered hole gradually decreases toward the slot; the locking hole extends from the bottom surface of the slot toward the other end of the tool holder and includes an internal thread;

[0007] A cutting tool includes a connecting portion, an extension rod, a locking hole, and at least one machining element; the connecting portion is tapered and includes a pressing end and an inserting end positioned opposite each other, the inserting end being inserted into the tapered hole, and the outer diameter of the connecting portion gradually narrows from the pressing end toward the inserting end; the locking hole extends from the inserting end toward the pressing end and includes a polygonal profile; the extension rod protrudes from the pressing end and includes a machining end away from the connecting portion; at least one machining element is mounted on the machining end;

[0008] A fixing component is located inside the tool holder and includes a locking block and a locking part; the locking block is engaged in a slot, is block-shaped, and includes a first surface and a second surface facing opposite directions, the outer diameter of the locking block is smaller than the diameter of the tapered hole, and the second surface abuts against the bottom surface of the slot; the locking part is provided on the first surface of the locking block and includes a polygonal cross section, the locking part is inserted into a locking hole and engages with the locking hole;

[0009] A bolt passes through the fastener and is screwed into the lock hole to connect the fastener and the tool holder;

[0010] A locking cover is attached to a tool holder, abuts a pressing end, and includes a through hole; an extension rod and a workpiece pass through the through hole.

[0011] Furthermore, the fastener includes a groove and a through hole; the groove is located inside the fastener and extends from the engaging portion toward the locking block; the through hole is located inside the fastener and extends from the bottom of the groove to the second surface of the locking block; a bolt passes through the groove and the through hole.

[0012] Furthermore, the tool holder includes a screw-locking section, which is located at the same end of the tool holder as the tapered hole and has an internal thread; the locking cover includes an external thread; the locking cover is screwed into the screw-locking section by the external thread.

[0013] Furthermore, the cutting tool includes an inlet channel and a connecting channel; the inlet channel extends from the bottom of the engagement hole toward the machining end; the connecting channel connects to the inlet channel, extends toward the machining end, and is connected to the outside of the machining end of the extension rod.

[0014] Furthermore, each of the machined parts is a cutting blade.

[0015] Furthermore, the extension rod is a cylindrical rod.

[0016] Furthermore, the cross-section of the card block is hexagonal, and the outline of the card slot is also hexagonal, corresponding to the cross-section of the card block.

[0017] Furthermore, the cross-section of the card block is pentagonal, and the outline of the card slot is also pentagonal, corresponding to the cross-section of the card block.

[0018] Furthermore, the cross-section of the card block is quadrilateral, and the outline of the card slot is also quadrilateral in shape, corresponding to the cross-section of the card block.

[0019] Furthermore, the cross-section of the engaging portion is hexagonal, and the outline of the engaging hole is hexagonal in accordance with the cross-section of the engaging portion; wherein, the cross-section of the locking block is hexagonal, and the outline of the locking groove is hexagonal in accordance with the cross-section of the locking block.

[0020] By adopting the technical solution of this utility model, at least the following beneficial effects are achieved: a fixing member is fixedly provided inside the tool holder, the engaging part of the fixing member is inserted into the engaging hole of the tool and engaged, and the engaging block of the fixing member is engaged with the engaging groove of the tool holder, which enables the fixing member to engage with the tool and the tool holder, thereby enabling the tool to resist the reaction force during machining and making it less likely to rotate relative to the tool holder, making the tool holder assembly of this utility model more efficient during machining and further improving the machining quality. [Attached Image Description]

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a three-dimensional schematic diagram of the tool holder assembly of this utility model.

[0023] Figure 2 This is an exploded view of the components of the tool holder assembly of this utility model.

[0024] Figure 3 This is a three-dimensional schematic diagram of the fastener of this utility model.

[0025] Figure 4 This is a side sectional view of the tool holder assembly of this utility model.

[0026] Figure 5 This is a cross-sectional view of the tool holder assembly of this utility model along the AA cutting line.

[0027] Figure 6 This is a cross-sectional view of the tool holder assembly of this utility model along the BB cutting surface line.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10: Tool holder

[0030] 11: Card slot

[0031] 111: Bottom surface

[0032] 12: Tapered hole

[0033] 13: Keyhole

[0034] 14: Screw lock section

[0035] 141: Internal thread

[0036] 20: Knives

[0037] 21: Joint

[0038] 211: Pressing end

[0039] 212: Insertion end

[0040] 22: Extension rod

[0041] 221: Processing end

[0042] 23: Engagement Hole

[0043] 24: Inlet channel

[0044] 25: Connecting Flow Channel

[0045] 27: Machined parts

[0046] 30: Fasteners

[0047] 31: Card Block

[0048] 311: First Surface

[0049] 312: Second Surface

[0050] 32: Container

[0051] 33: Card-connecting section

[0052] 34: Perforation

[0053] 40: Locking cover

[0054] 41: External thread

[0055] 50: Bolt.

Detailed Implementation Methods

[0056] To better understand the technical solution of this utility model, the technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0057] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing these embodiments and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0058] like Figures 1 to 4 As shown, a preferred embodiment of the present invention, a stably coupled tool holder assembly, includes a tool holder 10, a tool 20, a fixing member 30, a locking cover 40, and a bolt 50.

[0059] like Figures 1 to 4 As shown, the tool holder 10 includes two opposite ends, a slot 11, a tapered hole 12, a locking hole 13, and a screw-locking section 14. The slot 11 is located inside the tool holder 10 and includes a bottom surface 111, having a polygonal profile. The tapered hole 12 has a conical profile, extends from one end of the tool holder 10 towards the slot 11, and communicates with the slot 11; the diameter of the tapered hole 12 gradually decreases towards the slot 11. The locking hole 13 extends from the bottom surface 111 of the slot 11 towards the other end of the tool holder 10 and includes an internal thread. The screw-locking section 14 is located at the same end of the tool holder 10 as the tapered hole 12 and has an internal thread 141.

[0060] like Figures 1 to 4 As shown, the cutting tool 20 includes a connecting portion 21, an extension rod 22, a locking hole 23, an inlet channel 24, a connecting channel 25, and two machined parts 27. The connecting portion 21 is conical in shape corresponding to the conical hole 12, and includes a pressing end 211 and an insertion end 212 positioned opposite each other. The insertion end 212 of the connecting portion 21 is inserted into the conical hole 12, and the outer diameter of the connecting portion 21 gradually decreases from the pressing end 211 towards the insertion end 212. The extension rod 22 is a cylindrical rod body that protrudes from the pressing end 211 of the connecting portion 21 and includes a machining part away from the connecting portion 21. End 221; Engaging hole 23 extends from the insertion end 212 of the connecting part 21 toward the pressing end 211 of the connecting part 21, and the engaging hole 23 includes a polygonal outline; Inlet channel 24 extends from the bottom of the engaging hole 23 toward the machined end 221 of the extension rod 22; Connecting channel 25 connects to the inlet channel 24, extends toward the machined end 221 of the extension rod 22, and communicates with the outside of the machined end 221 of the extension rod 22; Two machined parts 27 are installed on the machined end 221 of the extension rod 22.

[0061] like Figures 1 to 4 As shown, the engaging hole 23, the inlet channel 24, and the connecting channel 25 are coaxially connected.

[0062] like Figures 1 to 4As shown, the fixing member 30 is located inside the tool holder 10 and includes a locking block 31, a receiving groove 32, a locking part 33, and a through hole 34. The locking block 31 is block-shaped and has a polygonal cross-section corresponding to the outline of the locking groove 11. The locking block 31 includes a first surface 311 and a second surface 312 facing opposite directions. The locking part 33 is located on the first surface 311 of the locking block 31 and has a polygonal cross-section corresponding to the outline of the locking hole 23. The receiving groove 32 is located inside the fixing member 30 and extends from the locking part 33 toward the locking block 31. The through hole 34 is located inside the fixing member 30 and extends from the bottom of the receiving groove 32 to the second surface 312 of the locking block 31. The diameter of the through hole 34 is smaller than the inner diameter of the receiving groove 32.

[0063] like Figures 1 to 4 As shown, the locking block 31 engages within the locking groove 11, with its second surface 312 abutting against the bottom surface 111 of the locking groove 11, thus securing the fixing member 30 to the tool holder 10. The engaging part 33 is inserted into the engaging hole 23 of the tool 20, securing the tool 20 to the fixing member 30. By engaging the locking block 31 with the locking groove 11 and engaging the engaging part 33 with the engaging hole 23, the fixing member 30, the tool holder 10, and the tool 20 can be secured together.

[0064] like Figures 1 to 4 As shown, in this utility model, the outer diameter of the locking block 31 of the fixing member 30 is smaller than the diameter of the tapered hole 12 of the knife bar 10, so that the locking block 31 of the fixing member 30 can be smoothly engaged in the slot 11 of the knife bar 10, and the second surface 312 of the locking block 31 abuts against the bottom surface 111 of the slot 11.

[0065] like Figures 1 to 6 As shown, specifically, the cross-section of the locking block 31 of the fixing member 30 is hexagonal, and the outline of the locking groove 11 is correspondingly set as hexagonal, so that the locking block 31 and the locking groove 11 can be engaged; the cross-section of the engaging part 33 of the fixing member 30 is hexagonal, and the outline of the engaging hole 23 of the tool 20 is also set as hexagonal, so that the engaging part 33 and the engaging hole 23 can be engaged; in this way, the purpose of locking the fixing member 30, the tool holder 10 and the tool 20 can be achieved.

[0066] like Figures 1 to 4 As shown, the locking cover 40 includes an external thread 41 and a through hole; the locking cover 40 is screwed into the screw section 14 of the tool bar 10 by the provided external thread 41, and the locking cover 40 abuts against the pressing end 221 of the joint portion 21 of the tool 20; the extension rod 22 of the tool 20 and the two machining parts 27 pass through the through hole of the locking cover 40.

[0067] like Figures 1 to 4As shown, the bolt 50 passes through the groove 32 and the through hole 34 of the fixing member 30 and is screwed into the screw locking section 14 of the tool holder 10, so that the fixing member 30 is connected to the tool holder 10.

[0068] Compared with existing tool holder and cutting tool stabilizing and connecting devices, this utility model provides a fixing member 30 fixed inside the tool holder 10 and having a locking part 33 with a polygonal cross-section. A locking hole 23 with a polygonal outline is correspondingly provided at the insertion end 212 of the connecting part 21 of the cutting tool 20. Furthermore, the locking block 31 of the fixing member 30 has a polygonal cross-section, and the outline of the locking groove 11 of the tool holder 10 is correspondingly set as a polygon. By using the locking part 33 and the locking hole 23 to engage with each other, and by using the locking block 31 and the locking groove 11 to engage with each other, the fixing member 30, the tool holder 10, and the cutting tool 20 can be locked together to prevent relative rotation between the cutting tool 20 and the tool holder 10. Therefore, when the tool holder assembly of this utility model is machining a workpiece, the cutting tool 20 can resist the reaction force applied by the workpiece, making the tool holder assembly of this utility model more efficient during machining and further improving the machining quality.

[0069] In practical applications, as long as the engaging part 33 and the engaging hole 23 can engage, this invention does not impose specific restrictions on the cross-section of the engaging part 33 of the fixing member 30 and the contour of the engaging hole 23 of the tool 20; similarly, as long as the locking block 31 and the locking groove 11 can engage, this invention also does not impose specific restrictions on the cross-section of the locking block 31 of the fixing member 30 and the contour of the locking groove 11 of the tool holder 10. Specifically, the aforementioned cross-section and contour can be triangular, quadrilateral, pentagonal, or hexagonal. Furthermore, in this invention, each machining part 27 is a cutting tool for machining.

[0070] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A solidly bonded knife bar assembly, comprising: include: A tool holder includes two opposite ends, a slot, a tapered hole, and a locking hole; the slot is located inside the tool holder and includes a bottom surface; the tapered hole extends from one end of the tool holder toward the slot and communicates with the slot, and the diameter of the tapered hole gradually decreases toward the slot; the locking hole extends from the bottom surface of the slot toward the other end of the tool holder and includes an internal thread; A cutting tool includes a connecting portion, an extension rod, a locking hole, and at least one machining element; the connecting portion is tapered and includes a pressing end and an inserting end positioned opposite each other, the inserting end being inserted into the tapered hole, and the outer diameter of the connecting portion gradually narrows from the pressing end toward the inserting end; the locking hole extends from the inserting end toward the pressing end and includes a polygonal profile; the extension rod protrudes from the pressing end and includes a machining end away from the connecting portion; at least one machining element is mounted on the machining end; A fixing component is located inside the tool holder and includes a locking block and a locking part; the locking block is engaged in a slot, is block-shaped, and includes a first surface and a second surface facing opposite directions, the outer diameter of the locking block is smaller than the diameter of the tapered hole, and the second surface abuts against the bottom surface of the slot; the locking part is provided on the first surface of the locking block and includes a polygonal cross section, the locking part is inserted into a locking hole and engages with the locking hole; A bolt passes through the fastener and is screwed into the lock hole to connect the fastener and the tool holder; A locking cover is attached to a tool holder, abuts a pressing end, and includes a through hole; an extension rod and a workpiece pass through the through hole.

2. A positively locked knife bar assembly as defined in claim 1 wherein: The fastener includes a groove and a through hole; the groove is located inside the fastener and extends from the engaging portion toward the locking block; the through hole is located inside the fastener and extends from the bottom of the groove to the second surface of the locking block; a bolt passes through the groove and the through hole.

3. A positively locked knife bar assembly as defined in claim 2 wherein: The tool holder includes a screw-locking section, which is located at the same end of the tool holder as the tapered hole and has an internal thread; the locking cover includes an external thread; the locking cover is screwed into the screw-locking section by the external thread.

4. A solidly mounted blade assembly as in claim 3, wherein: The cutting tool includes an inlet channel and a connecting channel; the inlet channel extends from the bottom of the engagement hole toward the machining end; the connecting channel connects to the inlet channel, extends toward the machining end, and is connected to the outside of the machining end of the extension rod.

5. The securely coupled tool holder assembly as described in claim 4, characterized in that: Each of the aforementioned workpieces is a cutting insert.

6. A solidly mounted blade assembly as in claim 5, wherein: The extension rod is a cylindrical rod.

7. A positively locked knife bar assembly as in any one of claims 1-6, wherein: The card block has a hexagonal cross-section, and the card slot has a hexagonal outline corresponding to the cross-section of the card block.

8. A solidly mounted blade assembly as claimed in any one of claims 1 to 6 wherein: The card block has a pentagonal cross-section, and the card slot has a pentagonal outline corresponding to the cross-section of the card block.

9. A solidly mounted blade assembly as claimed in any one of claims 1 to 6 wherein: The card block has a quadrilateral cross-section, and the card slot has a quadrilateral outline corresponding to the cross-section of the card block.

10. A solidly mounted blade assembly as claimed in any one of claims 1 to 6 wherein: The cross-section of the engaging part is hexagonal, and the outline of the engaging hole is hexagonal in accordance with the cross-section of the engaging part; wherein, the cross-section of the locking block is hexagonal, and the outline of the locking groove is hexagonal in accordance with the cross-section of the locking block.

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