Machine clamping type double-end turning tool for machining end face of wheel

Abstract

A machine clamp type double-end turning tool for machining wheel end faces relates to the field of wheel machining and comprises a tool handle, a pressing plate arranged on the tool handle, a rough turning tool body and a finish turning tool body, the rough turning tool body is pressed on the tool handle through the pressing plate, the finish turning tool body is fixed on the tool handle, and the rough turning tool body and the finish turning tool body are vertically symmetrical based on the datum plane of the tool handle. A chip removal notch is formed in the rough turning tool body, and the finish turning tool body is located below the chip removal notch. According to the invention, the structure of the tool body is reasonably designed, the tool bits originally needing to be machined by two tools are integrated on one tool bar, and the purpose that one tool body is used for executing a single working step to carry out rough turning and finish turning at the same time is achieved by matching the position relation between the outer cooling channel and the inner cooling channel of different tool bits and the two tool bodies.

Description

Technical Field

[0001] This invention relates to the field of wheel machining technology, specifically a clamp-on double-ended turning tool for machining the end face of a wheel. Background Technology

[0002] As a crucial component of automobiles, wheels serve not only as safety devices but also as aesthetic features. With the increasing proportion of precision-machined wheels on the A-side in recent years, improving the machining efficiency of wheel surface finishing has become a pressing challenge for the wheel industry. Currently, wheel surface finishing is a post-painting process. To ensure the quality of the surface texture and prevent paint damage to the edges from chips, wheel surface finishing typically involves two single-edged cutting tools in two steps: roughing and finishing. This means the same turning path requires two passes. However, limited by the number of cutting marks and the requirements for paint protection at the edges, there is no room for improvement in processing efficiency. Therefore, given the current requirements for surface texture and edges, a new process urgently needs to be developed to transform the two-tool, two-step process into a single-tool, single-step process. Developing a double-edged tool for this single-step roughing and finishing process is a key component. Summary of the Invention

[0003] In view of this, the present invention aims to provide a clamp-on double-ended turning tool for machining the end face of a wheel, which can integrate the cutting inserts that originally required two tools into one tool holder, so that the two cutting heads on one tool holder can complete both roughing and finishing processes in a single machining step.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A mechanically clamped double-ended turning tool for machining the end face of a wheel includes a tool holder, a pressure plate disposed on the tool holder, a roughing tool body, and a finishing tool body. The pressure plate presses the roughing tool body tightly onto the tool holder, and the finishing tool body is fixed onto the tool holder. The roughing tool body and the finishing tool body are symmetrical about the reference plane of the tool holder. The roughing tool body is provided with a chip removal notch, and the finishing tool body is located below the chip removal notch.

[0006] In some embodiments, the tool holder also includes an internal cooling inlet and an internal cooling channel. The internal cooling inlet is disposed on the side of the tool holder, and the internal cooling channel is disposed inside the tool holder and communicates with the internal cooling inlet. The internal cooling channel is also communicated with the chip removal opening.

[0007] In some embodiments, the roughing tool body is mounted on the tool holder by a roughing tool body fastening bolt.

[0008] In some embodiments, the pressure plate is provided with an adjustment notch for adjusting the position of the pressure plate.

[0009] In some embodiments, the fine turning tool body is provided with a top wire opening, and is positioned and fastened by a top wire bolt.

[0010] In some embodiments, the width w1 of the chip removal opening is 3-5 mm, and the height h2 is 4-6 mm.

[0011] In some embodiments, the nose circle arcs of the rough turning tool body and the fine turning tool body share a common center, and the turning profile difference Δ satisfies 0.04≤Δ≤0.08.

[0012] In some embodiments, the length L6 of the pressure plate is 40-45 mm, the width w2 is 19-21 mm, the pressure angle α9 between the pressure plate and the rough turning tool body is 29-31°, and the pressure angle α10 between the pressure plate and the pressure plate platform on the tool handle is 39-41°.

[0013] In some embodiments, the tool handle is a 25×25 square tool bar, the transition angle α1 between the tool handle and the rough turning tool head support table is 140-145°, and the angle α2 between the axis of the internal cooling channel and the axis of the tool handle is 3-5°.

[0014] In some embodiments, the rake angles α3 and α4 of the rough turning tool body are 6-7°, the relief angles α7 and α8 are 7-8°, the relief angles α5 and α6 are 7-8°, the nose angle α9 is 33-35°, and the nose circle radius R1 is 1.12-1.16 mm; the nose circle radius R2 of the fine turning tool body is 1.2 mm. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. In the drawings:

[0016] Figure 1 It is a front view of a machine clamped double-head turning tool for machining wheel end faces according to the present application.

[0017] Figure 2 It is a top view of a machine clamped double-head turning tool for machining wheel end faces according to the present application.

[0018] Figure 3 It is a left view of a machine clamped double-head turning tool for machining wheel end faces according to the present application.

[0019] Figure 4 It is an enlarged schematic view of a tool head of a machine clamped double-head turning tool for machining wheel end faces according to the present application.

[0020] Figure 5 It is a schematic view of the difference in cutting profile of a machine clamped double-head turning tool for machining wheel end faces according to the present application.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1, handle, 2, pressure plate, 3, inner cooling inlet, 4, pressure plate gap, 5, adjusting bolt, 6, rough turning tool body fastening bolt, 7, sealing gasket, 8, rough turning tool body, 9, rough turning tool blade, 10, rough turning tool support platform, 11, inner cooling channel, 12, finish turning tool blade, 13, finish turning tool body, 14, finish turning tool support platform, 15, top screw bolt, 16, top screw gap. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0024] The technical solutions of the present application will be described clearly and completely below with reference to the drawings and in combination with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] The following will be described below Figures 1 to 5 and in combination with the embodiments, the machining wheel end face of the machine clamped double-head turning tool of the embodiments of the present application.

[0026] A machine clamped double-head turning tool for machining wheel end face, comprising a handle 1, a pressure plate 2, an inner cooling inlet 3, a pressure plate gap 4, an adjusting bolt 5, a rough turning tool body 8 fastening bolt 6, a sealing gasket 7, a rough turning tool body 8, a rough turning tool blade 9, a rough turning tool support platform 10, an inner cooling channel 11, a finish turning tool blade 12, a finish turning tool body 13, a finish turning tool support platform 14, a top screw bolt 15, and a top screw gap 16; the handle 1, the pressure plate 2, and the inner cooling inlet 3 are an integral whole; the rough turning tool body 8 is provided separately from the handle 1 and is fastened by thread connection between each other, the rough turning tool body 8 is installed on the handle 1 by the rough turning tool body 8 fastening bolt 6, an inclined boss for chip breaking is provided on the rough turning tool body 8, and a chip removal gap is provided below the machining position of the front end of the rough turning tool body 8.

[0027] The handle 1 is provided with the pressure plate 2, the pressure plate 2 is provided with the pressure plate gap 4, one end of which is connected with the handle 1, and the other end is pressed tightly on the rough turning tool body 8; the finish turning tool body 13 is located below the chip removal gap of the rough turning tool body 8, the finish turning tool body 13 is fixed on the finish turning tool support platform 14, and the rough turning tool body 8 and the finish turning tool body 13 are symmetrically arranged above and below the reference surface of the handle 1.

[0028] The finish turning tool body 13 is designed with a support platform of the rough turning tool body 8 for supporting the rough turning tool, the rough turning tool body 8 and the finish turning tool body 13 are stacked above and below each other and are fastened by the rough turning tool fastening bolt 6. The rough turning tool body 8 is provided with the adjusting bolt 5 at the rear edge, which can adjust the length of the tool according to the wear condition of the rough turning tool body 8.

[0029] Also include the inner cooling air inlet 3, inner cooling channel 11, rough turning tool body 8 fastening bolt 6, inner cooling air inlet 3 is arranged in the side of the tool holder 1, inner cooling channel 11 is arranged in the tool holder 1 inside and is communicated with the inner cooling air inlet 3, and is communicated with the chip flute; The bottom support 14 of the finish turning tool body 13 is provided with the jackscrew bolt 15, which is pressed against the jackscrew opening 16. The rough turning tool body 8 fastening bolt 6 passes through the tool holder 1 and is fixed in the tool holder 1, so as to install the rough turning tool body 8 in the rough turning tool groove.

[0030] The finish turning tool body 13 belongs to the replaceable special-shaped tool; The pressing plate 2 is fixed in the screw hole arranged on the tool holder 1 through the rough turning tool body 8 fastening bolt 6; The pressing plate 2 is provided with a rectangular adjusting opening for adjusting the front and back of the rough turning tool body 8. The mixture of cold air and a small amount of lubricating oil can be blown out through the inner cooling channel 11, which can meet the cooling and lubrication of the finish turning tool body 13. At the same time, increasing the air pressure can blow the aluminum chips after finish turning away from the rake face of the finish turning tool body 13, so as to avoid the aluminum chips from piling up at the position of the chip flute and scratching the machined surface. The rough turning tool body 8 fastening bolt 6 and the inner cooling channel 11 intersect in the inner cooling and screw connection intersection channel. According to the hole diameter, air volume and corresponding air pressure of the inner cooling channel 11, the size of the inner cooling and screw connection intersection channel is reasonably set as follows: the hole diameter φ3 is 8-9mm, and the intersection hole depth d2 is 8-10mm.

[0031] The chip flute is arranged at the rake face of the rough turning tool body 8 and the finish turning tool body 13, and the chip flute is distributed in the circumferential direction along the cutting edge. The width w1 of the chip flute is 3-5mm, and the height h2 is 4-6mm. The tool tip arcs of the finish turning insert 12 and the rough turning insert 9 share the same center. The finish turning insert 12 and the rough turning insert 9 are provided with a suitable profile difference Δ. The profile difference is 0.04≤Δ≤0.08. The length of the pressing plate 2 is L6, and the width is w2. The pressing angle between the pressing plate 2 and the rough turning tool body 8 is α9, and the pressing angle between the pressing plate 2 and the upper side of the tool bar is α10. In order to ensure the pressing effect, L6 is 40-45mm, w2 is 19-21mm, α9 is 29-31°, α10 is 39-41°, the pressing point distance between the pressing plate 2 and the tool tip L1 is 23-26mm, and the corresponding length L2 of the pressing plate 2 platform 4 on the tool bar is 19-22mm. The depth d1 is 2-4mm, the width w2 of the pressing plate 2 platform is 19-21mm, the length L3 of the adjusting opening is 21-23mm, the width w3 of the adjusting opening is 4-6mm, and the rough turning tool fastening bolt 6 is a standard M5 internal hexagonal screw.

[0032] The handle 1 is selected from a 25*25 square tool holder, the handle 1 is connected to the rough turning tool head support table 5 at an angle of alpha 1, alpha 1 is 140-145 degrees, the side of the handle 1 is provided with an internal cooling air inlet 3, the thread hole diameter phi 2 is M6-M8, the corresponding internal cooling channel 11 diameter phi 1 is 3-4 mm, the internal cooling channel 11 axis and the handle 1 axis are at an angle of alpha 2, in order to ensure the blowing effect, alpha 2 is preferably 3-5 degrees, the rough turning tool body 8 tool groove height h1 is 5-8 mm. The finish turning tool body 13 and the rough turning tool body 8 are symmetrical based on the tool holder reference surface, that is, the finish turning tool body 13 or the rough turning tool body 8 and the reference surface height h3=h4, and 3 mm<=h3=h4<=5 mm, the rough turning tool height h5 is 28-30 mm, and the pressing plate 2 height h6 is 37-39 mm.

[0033] The rough turning tool body 8 rake angle alpha 3 and alpha 4 is 6-7 degrees, the blade rake angle alpha 7 and alpha 8 is 7-8 degrees, the rough turning tool body 8, the finish turning tool body 13 rake angle alpha 5 and alpha 6 is 7-8 degrees, in order to adapt to different product front modeling processing, the rough turning tool body 8, the finish turning tool body 13 tool tip angle alpha 9 is 33-35 degrees, the rough turning tool body 8 tool tip arc radius R1 is 1.12-1.16 mm, the finish turning tool body 13 tool tip arc R2 is a standard arc radius 1.2 mm.

[0034] A machine clamped double-head turning tool for processing wheel end face, comprising a handle 1, a pressing plate 2, a rough turning tool head support table, a rough turning tool body 8 tool body, a finish turning tool body 13, a finish turning tool body 13 support table; the handle 1 and the rough turning tool head support table, the rough turning tool body 8 tool body, the finish turning tool body 13 bottom support are connected as a whole; the rough turning tool body 8 and the rough turning tool body 8 tool body are separately provided, and are fastened through threads, the rough turning tool body 8 tool body is installed on the rough turning tool head support table provided by the finish turning tool body 13 through fastening elements, the rough turning tool body 8 is provided with an inclined boss for chip breaking, and a chip removal gap is arranged below the rough turning tool body 8 front end machining position; the handle 1 is provided with the pressing plate 2, one end of the pressing plate 2 is tightly pressed on the pressing plate 2 platform, and the other end is tightly pressed on the rough turning tool body 8 tool body; the finish turning tool body 13 is located below the chip removal gap of the rough turning tool body 8, the finish turning tool body 13 is fixed on the finish turning tool body 13 bottom support, and the rough turning tool body 8 and the finish turning tool body 13 are symmetrical based on the handle 1 reference surface.

[0035] It also comprises an internal cooling air inlet 3, an internal cooling channel 11, and a rough turning tool body 8 fastening bolt 6; the internal cooling air inlet 3 is arranged on the side of the handle 1, the internal cooling channel 11 is arranged inside the handle 1 and communicates with the internal cooling air inlet 3, and communicates with the chip removal gap; the finish turning tool body 13 bottom support is provided with a screw thread hole, the rough turning tool body 8 fastening screw is fixed in the screw thread hole through the rough turning tool body 8 tool body, so as to install the rough turning tool body 8 tool body in the rough turning tool groove. The finish turning tool blade 12 is welded on the finish turning tool body 13; the pressing plate 2 is fixed in the screw hole arranged on the support table through the pressing plate 2 screw; the pressing plate 2 is provided with a rectangular adjustment gap for front and back adjustment of the pressing plate 2 screw.

[0036] The fine turning tool body 13 is below the top wire gap 16, and the top wire bolt 15 is clamped in the top wire gap 16 to achieve the purpose of positioning and fastening. The mixture of cold air and a small amount of lubricating oil can be blown out through the internal cooling channel 11 to meet the cooling and lubrication of the fine turning tool body 13, and increasing the air pressure can blow the aluminum chips after fine turning away from the rake face of the fine turning tool body 13 to avoid the accumulation of aluminum chips at the chip removal gap position to scratch the machined surface. The tool handle 1 has a sealing pad 7 which is connected and sealed with the internal cooling channel 11 of the fine turning tool body 13 to prevent leakage. The screw thread hole intersects the internal cooling channel 11 in the internal cooling and screw connection intersection channel. According to the hole diameter, air volume and corresponding air pressure of the internal cooling channel 11, the size of the internal cooling and screw connection intersection channel is set as follows: the hole diameter φ3 is 8-9mm, and the intersection hole depth d2 is 8-10mm.

[0037] The chip removal gap is arranged on the rake face of the fine turning tool body 13 and the rough turning tool body 8, and the chip removal gap is distributed along the circumferential direction of the cutting edge. The width w1 of the chip removal gap is 3-5mm, and the height h2 is 4-6mm. The tool tip arc of the fine turning tool body 13 and the rough turning tool body 8 shares the same center, and the turning profile of the fine turning tool body 13 and the rough turning tool body 8 is set to have a suitable profile difference Δ, and the profile difference is 0.04≤Δ≤0.08. The length of the pressing plate 2 is L6, and the width is w2. The pressing angle of the pressing plate 2 and the rough turning tool body 8 is α9, and the pressing angle of the pressing plate 2 and the pressing plate 2 platform on the upper side of the tool bar is α10. In order to ensure the pressing effect, L6 is 40-45mm, w2 is 19-21mm, α9 is 29-31°, α10 is 39-41°, the pressing point distance of the pressing plate 2 from the turning tool tip L1 is 23-26mm, and the corresponding pressing plate 2 platform length L2 on the tool bar is 19-22mm, the depth d1 is 2-4mm, the pressing plate 2 platform width w2 is 19-21mm, the adjusting gap length L3 is 21-23mm, the adjusting gap width w3 is 4-6mm, and the pressing plate 2 screw is a standard M5 internal hexagonal screw.

[0038] The tool handle 1 is selected as a 25×25 square tool bar. The tool handle 1 is connected to the rough turning tool head support table at an angle α1, and α1 is 140-145°. The tool handle 1 has an internal cooling inlet thread hole on the side surface, and the thread hole diameter φ2 is M6-M8. The corresponding internal cooling channel 11 diameter φ1 is 3-4mm, and the internal cooling channel 11 axis and the tool handle 1 axis are at an angle α2. In order to ensure the blowing chip effect, α2 is preferably 3-5°. The rough turning tool body 8 has a tool groove height h1 of 5-8mm.

[0039] The fine turning tool body 13 and the rough turning tool body 8 are symmetrical on the tool bar reference surface, that is, the height h3=h4 of the fine turning tool body 13 or the rough turning tool body 8 is the same as the height of the reference surface, and 3mm<=h3=h4<=5mm, the height h5 of the rough turning tool head is 28-30mm, and the height h6 of the pressing plate 2 is 37-39mm. The rake angles alpha3 and alpha4 of the rough turning tool body 8 are 6-7°, the blade inclination angles alpha7 and alpha8 are 7-8°, the relief angles alpha5 and alpha6 of the rough turning tool body 8 and the fine turning tool body 13 are 7-8°, in order to adapt to the front modeling processing of different products, the tool tip angle alpha9 of the rough turning tool body 8 and the fine turning tool body 13 is 33-35°, the tool tip arc radius R1 of the rough turning tool body 8 is 1.12-1.16mm, and the tool tip arc R2 of the fine turning tool body 13 is a standard arc radius of 1.2mm.

[0040] Compared with the prior art, the machine clamp type double-head turning tool for machining the end face of a wheel has the following advantages:

[0041] The tool body is designed reasonably, the original two tool heads are innovatively integrated on a tool bar, the outer cooling and inner cooling channels of different tool heads and the positional relationship between the two tool bodies are matched, the purpose of rough turning and fine turning is achieved by using one tool body to perform a single work step, the tool body is mostly a whole welding piece, the rough turning tool body machine clamp is replaceable, the tool body is simple to manufacture and convenient to replace, and the tool body is low in cost. The tool body is used for machining, the cutting time is greatly reduced, and the machining efficiency is obviously improved.

[0042] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the protection scope of the present application.

[0043] In addition, the terms "first" and "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0044] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, or electrical connection or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clampable double-ended turning tool for machining the end face of a wheel, characterized in that, The tool includes a tool holder (1), a pressure plate (2) disposed on the tool holder (1), a roughing tool body (8) and a finishing tool body (13). The pressure plate (2) presses the roughing tool body (8) onto the tool holder (1), and the finishing tool body (13) is fixed on the tool holder (1). The roughing tool body (8) and the finishing tool body (13) are symmetrical about the reference plane of the tool holder (1). The roughing tool body (8) is provided with a chip removal notch, and the finishing tool body (13) is located below the chip removal notch.

2. The clamp-on double-ended turning tool for machining wheel end faces according to claim 1, characterized in that, It also includes an internal cooling air inlet (3) and an internal cooling channel (11). The internal cooling air inlet (3) is located on the side of the tool holder (1). The internal cooling channel (11) is located inside the tool holder (1) and communicates with the internal cooling air inlet (3). The internal cooling channel (11) communicates with the chip removal opening.

3. The clamp-on double-ended turning tool for machining wheel end faces according to claim 1, characterized in that, The roughing tool body (8) is mounted on the tool holder (1) by the roughing tool body fastening bolt (6).

4. The clamp-on double-ended turning tool for machining wheel end faces according to claim 1, characterized in that, The pressure plate (2) has an adjustment notch (4) for adjusting the position of the pressure plate (2).

5. The clamp-on double-ended turning tool for machining wheel end faces according to claim 1, characterized in that, The precision turning tool body (13) is provided with a set screw notch (16), and is tightened by a set screw bolt (15) for positioning and fastening.

6. The clamp-on double-ended turning tool for machining wheel end faces according to claim 1, characterized in that, The width w1 of the chip removal opening is 3~5mm, and the height h2 is 4~6mm.

7. The clamp-on double-ended turning tool for machining wheel end faces according to claim 1, characterized in that, The cutting tip arcs of the roughing tool body (8) and the finishing tool body (13) share a common center, and the turning profile difference Δ satisfies 0.04≤Δ≤0.

08.

8. The clamp-on double-ended turning tool for machining wheel end faces according to claim 1, characterized in that, The length L6 of the pressure plate (2) is 40~45mm, the width w2 is 19~21mm, the clamping angle α9 between the pressure plate (2) and the roughing tool body (8) is 29~31°, and the clamping angle α10 between the pressure plate (2) and the pressure plate platform on the tool holder (1) is 39~41°.

9. The clamp-on double-ended turning tool for machining wheel end faces according to claim 1, characterized in that, The tool holder (1) is a 25×25 square tool holder. The transition angle α1 between the tool holder (1) and the roughing tool head support table (10) is 140~145°. The angle α2 between the axis of the internal cooling channel (11) and the axis of the tool holder (1) is 3~5°.

10. The clamp-on double-ended turning tool for machining wheel end faces according to claim 1, characterized in that, The roughing tool body (8) has a rake angle of 6~7° for α3 and α4, a cutting edge inclination angle of 7~8° for α7 and α8, a clearance angle of 7~8° for α5 and α6, a tool tip angle of 33~35° for α9, and a tool tip radius of 1.12~1.16mm for R1; the finishing tool body (13) has a tool tip radius of 1.2mm for R2.

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