Floating deburring cutter

Abstract

The floating deburring tool comprises a tool handle mechanism and a floating mechanism, the tool handle mechanism comprises a tool bar and a tool bit, a mounting groove is formed in one end of the tool bar, a bearing face used for bearing the tool bit is arranged at the bottom of the mounting groove, and the tool bit is hinged to the bearing face; a first through hole is formed in the tool bit, and a second through hole is formed in the bearing surface; the floating mechanism comprises a fixing bolt, a locking nut and an elastic component, and the fixing bolt sequentially penetrates through the first penetrating hole and the second penetrating hole and is locked through the locking nut. The elastic component is arranged on a screw rod of the fixing bolt in a sleeving mode and connected between a nut of the fixing bolt and the tool bit in an abutting mode. According to the device, self-adaptive stretching and retracting can be achieved according to machined curved surfaces of different shapes or burrs at different positions, burrs on parts can be comprehensively removed, the removing efficiency is high, the phenomenon of overcutting is avoided, meanwhile, it is avoided that a steel brush is used for removing large burrs and flashes, and the product quality is improved. The surface of the aluminum alloy cylinder body is damaged; and the service life of the steel brush is shortened.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of machining, in particular to a floating deburring tool. BACKGROUND

[0002] An aluminum alloy cylinder body is an important part of a vehicle engine cleaning device, and in the machining process, the hole positions of each surface of the aluminum alloy cylinder body need to be machined, and after the hole machining is completed, the machined hole positions usually need to be deburred.

[0003] In the related art, deburring is generally performed by using a chamfering tool or a standard milling cutter or a steel brush, wherein the chamfering tool and the standard milling cutter are fixed in position during machining, and since there is a temperature difference in the aluminum alloy cylinder body after being pressure cast, thermal expansion and cold contraction occur, although the chamfering tool and the standard milling cutter are machined according to the specified coordinate position of the machine tool, the aluminum alloy cylinder body has a position change of 0mm to 0.5mm, and thus overcutting is easily caused.

[0004] The steel brush can avoid hard objects according to the strength of the hard objects, the steel brush can remove small burrs, but thick burrs and flash cannot be removed, and if the thick burrs and flash are forcibly removed, the surface of the aluminum alloy cylinder body is damaged, the service life of the steel brush is reduced, and the machining time is prolonged. CONTENT OF THE INVENTION

[0005] Therefore, it is necessary to provide a floating deburring tool which can completely remove burrs on a part, has high removal efficiency, avoids overcutting, and avoids the problems of damaging the surface of the aluminum alloy cylinder body and reducing the service life of the steel brush caused by using the steel brush to remove thick burrs and flash.

[0006] A floating deburring tool comprises:

[0007] A tool handle mechanism comprises a tool rod and a tool head, one end of the tool rod is provided with a mounting groove, the bottom of the mounting groove is provided with a bearing surface for bearing the tool head, and the tool head is hinged to the bearing surface; a first through hole is formed in the tool head, and a second through hole is formed in the bearing surface;

[0008] A floating mechanism comprises a fixing bolt, a locking nut and an elastic component, the fixing bolt is sequentially arranged in the first through hole and the second through hole and locked by the locking nut; the elastic component is sleeved on the screw rod of the fixing bolt, and the elastic component abuts between the screw cap of the fixing bolt and the tool head.

[0009] In the above scheme, the floating mechanism and the tool holder mechanism are arranged, when the tool head encounters the protruding burr, the elastic component is further compressed and drives the tool head to move downward, preventing the tool head from removing the protruding burr and over-processing the part position, when the tool head encounters the recess, the elastic component is relaxed, and the tool rod is driven to move upward, avoiding the burr in the recess from being processed, and when the tool head removes the larger burr, the elastic component can give the tool head a larger pressure, so that the tool head always stays in the part position to be removed.

[0010] The application can realize self-adaptive expansion according to the burrs in different positions of different shapes of curved surfaces, can realize overall removal of the burrs on the parts, has high removal efficiency, avoids overcutting, avoids the use of steel brushes to remove larger burrs, and avoids the problems of damage to the surface of the aluminum alloy cylinder and reduction of the service life of the steel brush.

[0011] In one embodiment, one side of the mounting groove is arranged through the tool rod, and the other side of the mounting groove has a limiting surface connected with the bearing surface, the limiting surface is arranged perpendicular to the bearing surface, and the tool head can abut against the limiting surface.

[0012] In one embodiment, in the initial state, the axial direction of the tool head is the same as the axial direction of the tool rod, and a limiting gap is arranged between the tool head and the limiting surface.

[0013] In one embodiment, the limiting gap is 0.05mm-0.15mm.

[0014] It should be noted that the size of the limiting gap is not limited, and can be selected between 0.05mm-0.15mm. It should be further noted that if the limiting gap between the tool head and the limiting surface is too large, the swing amount of the tool head will increase. If the limiting gap between the tool head and the limiting surface is too small, the sensitivity of the tool head floating will be affected, and the phenomenon of jamming will occur. Therefore, the limiting gap is selected between 0.05mm-0.15mm to ensure the sensitivity of the tool head floating, avoid the phenomenon of jamming, and ensure that the swing amount of the tool head is within a normal range. Exemplarily, the limiting gap between the tool head and the limiting surface is 0.1mm.

[0015] In one embodiment, the height of the limiting surface beyond the bearing surface is ≥3mm.

[0016] In one embodiment, the tool head has a rake surface and a relief surface, a main cutting edge is formed between the rake surface and the relief surface, and the included angle between the rake surface and the relief surface is 68°-72°.

[0017] In one of the embodiments, the tool head comprises a head part and a rod part, the head part is arranged at one end of the rod part, the rake face and the relief face are arranged on the head part, and the first through hole is arranged on the rod part.

[0018] In one of the embodiments, the angle between the rake face and the rod part is 78-82°.

[0019] In one of the embodiments, the elastic part comprises a spring.

[0020] In one of the embodiments, a gasket is arranged between the elastic part and the tool head.

[0021] The gasket can prevent the elastic part from being stuck in the gap between the tool head and the screw rod of the fixing bolt. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings which form a part of this application are intended to provide further understanding of this application and are incorporated herein in connection with this application. The schematic embodiments of this application and the descriptions thereof are used to explain this application and do not constitute improper limitation of this application.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings needed to be used in the embodiments will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of this application, and for those skilled in the art, other drawings can be obtained without creative effort based on these drawings.

[0024] Figure 1 The structural schematic diagram of the floating deburring tool shown in an embodiment of this application.

[0025] Figure 2 The structural schematic diagram of the tool head shown in an embodiment of this application.

[0026] Figure 3 The left view structural diagram of the tool head shown in an embodiment of this application.

[0027] Figure 4 The structural schematic diagram of the rod shown in an embodiment of this application.

[0028] REFERENCE SIGNS:

[0029] 10, floating deburring tool; 100, tool holder mechanism; 110, tool rod; 111, bearing surface; 112, second through hole; 113, limiting surface; 120, tool head; 121, first through hole; 122, rake face; 123, relief face; 124, head part; 125, rod part; 130, tool holder; 200, floating mechanism; 210, fixing bolt; 220, locking nut; 230, elastic part; 240, gasket. DETAILED DESCRIPTION

[0030] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the present application can be practiced with modification and alteration, and that the present application is not limited to the above described embodiments.

[0031] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0033] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless specifically stated and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "on", "above" and "over" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0036] The aluminum alloy cylinder body is an important part in the automobile engine cleaning equipment. In the processing process, the hole positions of each surface of the aluminum alloy cylinder body need to be processed. After the hole processing is completed, the processed hole positions usually need to be deburred.

[0037] In the related art, deburring is generally performed by chamfering tools or standard milling cutters or brushes. The chamfering tools and the standard milling cutters are fixed in position during processing. Due to temperature differences when the aluminum alloy cylinder body is pressure cast, thermal expansion and contraction occur. Although the chamfering tools and the standard milling cutters are processed according to the specified coordinate positions of the machine tool, the aluminum alloy cylinder body has a position change of 0mm to 0.5mm. Therefore, overcutting is easily caused.

[0038] The steel brush can avoid hard objects according to the strength of the hard objects. The steel brush can remove small burrs, but cannot remove thick burrs. If the thick burrs are forcibly removed, the surface of the aluminum alloy cylinder body will be damaged, the service life of the steel brush will be reduced, and the processing time will be prolonged.

[0039] In view of the above problems, please refer to Figure 1 , Figure 2 and Figure 3 Embodiments of the present application relate to a floating deburring tool 10, which comprises a tool handle mechanism 100 and a floating mechanism 200, and the floating mechanism 200 is arranged on the tool handle mechanism 100.

[0040] Please refer to Figure 1 , Figure 2 and Figure 4The tool shank mechanism 100 comprises a tool shank 110 and a tool head 120. The tool shank 110 has an installation slot at one end, and the bottom of the installation slot has a bearing surface 111 for bearing the tool head 120, and the tool head 120 is hinged to the bearing surface 111. Specifically, the installation slot is recessed at the one end of the tool shank 110. The tool head 120 has a first through hole 121, and the bearing surface 111 has a second through hole 112.

[0041] Specifically, the tool shank mechanism 100 comprises a tool shank 130, and the tool shank 110 is arranged on the tool shank 130. The tool shank 130 is used to be connected with a machine tool spindle, and the machine tool spindle can drive the tool shank 130 to rotate, so as to drive the tool shank 110 to rotate, and further drive the tool head 120 to rotate. The second through hole 112 is arranged through the tool shank 110.

[0042] Please refer to Figure 1 , Figure 2 and Figure 4 . The floating mechanism 200 comprises a fixing bolt 210, a locking nut 220 and an elastic component 230. The fixing bolt 210 is arranged through the first through hole 121 and the second through hole 112 in sequence, and is locked by the locking nut 220. The elastic component 230 is sleeved on the screw rod of the fixing bolt 210, and abuts between the nut of the fixing bolt 210 and the tool head 120. The locking nut 220 is located on the side of the tool shank 110 away from the bearing surface 111. In this embodiment, the elastic component 230 is a spring.

[0043] Specifically, the second through hole 112 is provided with a threaded hole for threadedly connecting with the fixing bolt 210. The inner diameter of the first through hole 121 is larger than that of the second through hole 112, so that the tool head 120 can rotate relative to the tool shank 110. It should be noted that, during assembly, the elastic component 230 is first sleeved on the screw rod of the fixing bolt 210, and then the fixing bolt 210 is arranged through the first through hole 121 and the second through hole 112 in sequence, and the movement of the tool head 120 is confirmed during installation. Finally, the fixing bolt 210 is locked by the locking nut 220.

[0044] It should be further noted that the movement of the tool head 120 is not limited in this application, and can be set according to actual use requirements. In this embodiment, the elastic component 230 must have a compression space of about 2mm to avoid damage caused by excessive compression of the elastic component 230.

[0045] The machine tool spindle can drive the tool holder 130 and the tool rod 110 to rotate, so as to drive the tool bit 120 to rotate, and the tool bit 120 can be in contact with a part to be deburred to remove burrs thereon. When the tool bit 120 encounters a protruding burr, the elastic component 230 is further compressed while driving the tool bit 120 to move downward, preventing the tool bit 120 from removing the protruding burr while over-processing the part. When the cutting edge of the tool bit 120 encounters a recess, the elastic component 230 will relax, thereby driving the tool rod 110 to move upward, avoiding the burr in the recess from being processed.

[0046] In the above scheme, the floating mechanism 200 and the tool holder mechanism 100 are provided. When the tool bit 120 encounters a protruding burr, the elastic component 230 is further compressed while driving the tool bit 120 to move downward, preventing the tool bit 120 from removing the protruding burr while over-processing the part. When the cutting edge of the tool bit 120 encounters a recess, the elastic component 230 will relax, thereby driving the tool rod 110 to move upward, avoiding the burr in the recess from being processed. Moreover, when the tool bit 120 removes a larger burr, the elastic component 230 can provide a larger pressure to the tool bit 120, so that the tool bit 120 always stably stays at the part to be deburred.

[0047] The present application can realize self-adaptive expansion according to the burrs in different shapes or different positions, can realize overall removal of burrs on the part, has high removal efficiency, avoids overcutting, avoids the use of steel brushes to remove larger burrs, and avoids the problems of damage to the surface of the aluminum alloy cylinder and reduction of the service life of the steel brush.

[0048] Please refer to Figure 1 , Figure 2 and Figure 4 According to some embodiments of the present application, one side of the mounting groove is provided through the tool rod 110, and the other side of the mounting groove has a limiting surface 113 connected with the bearing surface 111. The limiting surface 113 is perpendicular to the bearing surface 111, and the tool bit 120 can abut against the limiting surface 113.

[0049] In the present embodiment, two first perforations 121 are formed on the tool bit 120, and correspondingly, two second perforations 112 are formed on the bearing surface 111, and the two first perforations 121 and the two second perforations 112 are one-to-one correspondingly arranged.

[0050] Since the inner diameter of the first perforation 121 is larger than the inner diameter of the second perforation 112, the tool bit 120 can rotate relative to the tool rod 110. When the tool bit 120 rotates, it can abut against the limiting surface 113. The limiting surface 113 can prevent the tool bit 120 from continuing to rotate, thereby preventing the tool bit 120 from rotating excessively.

[0051] The two first perforations 121 can be processed by wire cutting, and the two end faces of the first perforation 121 are chamfered after processing to remove burrs, so as to prevent the problem of jamming and unsmooth operation when removing burrs.

[0052] Please refer to Figure 1 , Figure 2 and Figure 4 According to some embodiments of the application, optionally, in the initial state, the axial direction of the tool head 120 is the same as the axial direction of the tool bar 110, and the tool head 120 has a limiting gap with the limiting surface 113. Specifically, the limiting gap is 0.05mm-0.15mm.

[0053] It should be noted that the size of the limiting gap is not limited in the present application, and can be selected between 0.05mm-0.15mm. It should be noted that if the limiting gap between the tool head 120 and the limiting surface 113 is too large, the swing amount of the tool head 120 will increase. If the limiting gap between the tool head 120 and the limiting surface 113 is too small, the sensitivity of the tool head 120 floating will be affected, and the phenomenon of jamming will occur, so the limiting gap between 0.05mm-0.15mm can ensure the sensitivity of the head floating, avoid the phenomenon of jamming, and at the same time ensure that the swing amount of the tool head 120 is within the normal range. Exemplarily, the limiting gap between the tool head 120 and the limiting surface 113 is 0.1mm.

[0054] Please refer to Figure 1 , Figure 2 and Figure 4 According to some embodiments of the application, optionally, the height of the limiting surface 113 beyond the bearing surface 111 is ≥3mm. Specifically, the extension direction of the bearing surface 111 is horizontal, and the extension direction of the limiting surface 113 is vertical.

[0055] The height of the limiting surface 113 beyond the bearing surface 111 is not limited in the present application, and needs to be selected within the range of ≥3mm. It should be noted that if the height of the limiting surface 113 beyond the bearing surface 111 is too low, the limiting effect of the limiting surface 113 on the tool head 120 will be affected.

[0056] Please refer to Figure 1 , Figure 2 and Figure 3 According to some embodiments of the application, optionally, the tool head 120 has a rake face 122 and a relief face 123, and the rake face 122 and the relief face 123 form a main cutting edge, and the included angle θ between the rake face 122 and the relief face 123 is 68°-72°, which can ensure that the main cutting edge is sharp enough without damaging the parts.

[0057] It should be noted that the rake face 122 needs to be ground to ensure sharp scraping ability. The present application does not limit the angle θ between the rake face 122 and the relief face 123, which can be selected between 68° and 72°. Exemplarily, the angle θ between the rake face 122 and the relief face 123 is 70°.

[0058] Please refer to Figure 1 , Figure 2 and Figure 3 According to some embodiments of the present application, optionally, the tool bit 120 comprises a head 124 and a shank 125, the head 124 is arranged at one end of the shank 125, the rake face 122 and the relief face 123 are both arranged on the head 124, and the first through hole 121 is arranged on the shank 125. Specifically, the angle β between the rake face 122 and the shank 125 is 78°-82°. It should be noted that the present application does not limit the angle β between the rake face 122 and the shank 125, which can be selected between 78° and 82°. Exemplarily, the angle β between the rake face 122 and the shank 125 is 80°.

[0059] Please refer to Figure 1 , Figure 2 and Figure 4 According to some embodiments of the present application, optionally, a gasket 240 is arranged between the elastic component 230 and the tool bit 120. By arranging the gasket 240, the elastic component 230 can be prevented from being stuck in the gap between the tool bit 120 and the screw rod of the fixing bolt 210.

[0060] Please refer to Figure 1 , Figure 2 and Figure 4 According to some embodiments of the present application, optionally, the tool shank 110 is a cylindrical structure. It should be noted that the diameter of the tool shank 110 can be set according to the elastic component 230, in order to ensure the rigidity and processing performance of the tool shank 110. The diameter of the tool shank 110 is ≥10mm. It should be further noted that the present application does not limit the diameter of the tool shank 110, which needs to be selected within the range of ≥10mm.

[0061] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0062] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A floating deburring tool, characterized in that, The utility model relates to a tool holder mechanism, a floating mechanism and a tool head. The tool holder mechanism comprises a tool holder and a tool head, one end of the tool holder is provided with a mounting groove, the bottom of the mounting groove is provided with a bearing surface for bearing the tool head, and the tool head is hinged to the bearing surface; a first through hole is formed in the tool head, and a second through hole is formed in the bearing surface; The floating mechanism comprises a fixing bolt, a locking nut and an elastic component, the fixing bolt is sequentially threaded into the first through hole and the second through hole and is locked by the locking nut; the elastic component is sleeved on the screw rod of the fixing bolt, and the elastic component abuts between the screw nut of the fixing bolt and the tool head.

2. The floating deburring tool according to claim 1, characterized in that One side of the mounting groove is arranged through the tool holder, and the other side of the mounting groove is provided with a limiting surface connected with the bearing surface, the limiting surface is arranged perpendicularly to the bearing surface, and the tool head can abut against the limiting surface.

3. The floating deburring tool of claim 2, wherein, In the initial state, the axial direction of the tool head is the same as that of the tool holder, and there is a limiting gap between the tool head and the limiting surface.

4. The floating deburring tool of claim 3, wherein, The limiting gap is 0.05mm-0.15mm.

5. The floating deburring tool of claim 2, wherein, The height of the limiting surface beyond the bearing surface is greater than or equal to 3mm.

6. The floating deburring tool of claim 1, wherein, The tool head is provided with a rake surface and a relief surface, a main cutting edge is formed between the rake surface and the relief surface, and the included angle between the rake surface and the relief surface is 68°-72°.

7. The floating deburring tool of claim 6, wherein, The tool head comprises a head part and a rod part, the head part is arranged at one end of the rod part, the rake surface and the relief surface are formed in the head part, and the first through hole is arranged on the rod part.

8. The floating deburring tool of claim 7, wherein, The included angle between the rake surface and the rod part is 78°-82°.

9. The floating deburring tool of claim 1, wherein, The elastic component comprises a spring.

10. The floating deburring tool of claim 1, wherein, A gasket is further arranged between the elastic component and the tool head.

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