WO2024069220A1

WO2024069220A1 - Face milling machine for resurfacing cylinders and cylinder heads

Info

Publication number: WO2024069220A1
Application number: PCT/IB2022/059375
Authority: WO
Inventors: Hamid Ghiassy
Original assignee: Hamid Ghiassy
Priority date: 2022-10-01
Filing date: 2022-10-01
Publication date: 2024-04-04

Abstract

Disclosed herein is a face milling machine for resurfacing cylinders and cylinder heads. The face milling machine includes a chassis, a rotating mechanism, a vertical feeding mechanism, and a headstock. The vertical feeding mechanism includes a first guide rail, a second guide rail, a first slider, a second slider, a third slider, a fourth slider, a second body, a leadscrew, a nut, a first connecting member, and a second motor. The headstock is configured to move up and/or down linearly along the second axis responsive to rotation of the leadscrew around the main axis of the leadscrew. The vertical feeding mechanism further includes a fine-tuning handle that provides the user with an ability to feed the grinding tool slightly and precisely.

Description

FACE MILLING MACHINE FOR RESURFACING CYLINDERS AND CYLINDER

HEADS

TECHNICAL FIELD

[0001] The present disclosure generally relates to mechanical engineering. The present disclosure, particularly, relates to milling machinery and, more particularly, relates to a machine for milling and grinding cylinder and cylinder head parts.

BACKGROUND ART

[0002] Milling of a cylinder or cylinder head involves removing material from the cylinder head (or block deck surface where the heads and block meet) to effectively reduce the volume of the combustion chambers. This method, which is also used to correct warped or imperfect deck surfaces, allows a user to control the size of the chamber so the user can get the volume needed to achieve a desired compression ratio. Milling allows a user to build higher compression using flat top pistons, avoiding the potential detonation problems associated with dome pistons.

[0003] Different face milling machines and methods have been used for resurfacing cylinder and/or cylinder heads. These machines and methods are associated with some issues. One of the most important issues of these machines are their expensiveness. These machines generally use some mechanisms and parts for their feeding mechanism such as some rings, couplings, bearings, spindles, shafts, and other parts which are all expensive due to their method of manufacture. Therefore, the final cost of these machines may be very expensive. There is, therefore, a need for a cost-effective face milling machine that is able to be used for resurfacing cylinders and cylinder heads.

SUMMARY OF THE DISCLOSURE

[0010] This summary is intended to provide an overview of the subject matter of the present disclosure, and is not intended to identify essential elements or key elements of the subject matter, nor is it intended to be used to determine the scope of the claimed implementations. The proper scope of the present disclosure may be ascertained from the claims set forth below in view of the detailed description below and the drawings.

[0011] According to one or more exemplary embodiments, the present disclosure is directed to a face milling machine for resurfacing cylinders and cylinder heads. In an exemplary embodiment, the face milling machine may include a chassis, a rotating mechanism, a vertical feeding mechanism, and a headstock.

[0012] In an exemplary embodiment, the rotating mechanism may be mounted onto the chassis. In an exemplary embodiment, the rotating mechanism may include a first body and a first motor. In an exemplary embodiment, the first body may be rotatably attached to the chassis. In an exemplary embodiment, the first motor may be coupled to the first body. In an exemplary embodiment, the first motor may be configured to rotate the first body around a first axis.

[0013] In an exemplary embodiment, the vertical feeding mechanism may be mounted onto the rotating mechanism. In an exemplary embodiment, the vertical feeding mechanism may include a first guide rail, a second guide rail, a first slider, a second slider, a third slider, a fourth slider, a second body, a leadscrew, a nut, a first connecting member, and a second motor. In an exemplary embodiment, the first guide rail may be attached to the first body. In an exemplary embodiment, the main longitudinal axis of the second guide rail being parallel to the second axis.

[0014] In an exemplary embodiment, the main longitudinal axis of the second guide rail may be parallel to the second axis. In an exemplary embodiment, the first slider may be mounted slidably onto the first guide rail. In an exemplary embodiment, the first slider may be configured to move linearly along the main longitudinal axis of the first guide rail. In an exemplary embodiment, the first guide rail may be configured to limit movements of the first slider to a linear movement along the main longitudinal axis of the first guide rail.

[0015] In an exemplary embodiment, the second slider may be mounted slidably onto the first guide rail. In an exemplary embodiment, the second slider may be configured to move linearly along the main longitudinal axis of the first guide rail. In an exemplary embodiment, the first guide rail may be configured to limit movements of the second slider to a linear movement along the main longitudinal axis of the first guide rail.

[0016] In an exemplary embodiment, the third slider may be mounted slidably onto the second guide rail. In an exemplary embodiment, the third slider may be configured to move linearly along the main longitudinal axis of the second guide rail. In an exemplary embodiment, the second guide rail may be configured to limit movements of the third slider to a linear movement along the main longitudinal axis of the second guide rail.

[0017] In an exemplary embodiment, the fourth slider may be mounted slidably onto the second guide rail. In an exemplary embodiment, the fourth slider may be configured to move linearly along the main longitudinal axis of the second guide rail. In an exemplary embodiment, the second guide rail may be configured to limit movements of the fourth slider to a linear movement along the main longitudinal axis of the second guide rail.

[0018] In an exemplary embodiment, the second body may be fixedly attached to the first body. In an exemplary embodiment, the leadscrew may be attached to the second body. In an exemplary embodiment, the leadscrew may be configured to rotate around a main longitudinal axis of the leadscrew. In an exemplary embodiment, the main longitudinal axis of the leadscrew may be parallel to the first axis.

[0019] In an exemplary embodiment, the nut may be mounted onto the leadscrew. In an exemplary embodiment, the nut may be meshedly engaged with the leadscrew. In an exemplary embodiment, the nut may be configured to move along the main longitudinal axis of the leadscrew responsive to rotation of the leadscrew around the main longitudinal axis of the leadscrew.

[0020] In an exemplary embodiment, the first connecting member may be fixedly attached to the first slider, the second slider, the third slider, the fourth slider, and the nut. In an exemplary embodiment, the first guide rail, the second guide rail, the first slider, the second slider, the third slider, and the fourth slider may be configured to limit movements of the nut and the first connecting member to a linear movement along the main longitudinal axis of the leadscrew. In an exemplary embodiment, the second motor may be coupled to the leadscrew. In an exemplary embodiment, the second motor may be configured to rotate the leadscrew around the main longitudinal axis of the leadscrew.

[0021] In an exemplary embodiment, the headstock may include a third body, a third motor, a tool holder, and a second connecting member. In an exemplary embodiment, the third motor may be disposed inside the third body. In an exemplary embodiment, the tool holder may be connected to the third motor. In an exemplary embodiment, the tool holder may be configured to hold a grinding tool. In an exemplary embodiment, the third motor may be configured to rotate the tool holder and the grinding tool around a second axis. In an exemplary embodiment, the second axis may be parallel to the first axis. In an exemplary embodiment, the grinding tool may be configured to grind a surface of a workpiece.

[0022] In an exemplary embodiment, the second connecting member may be fixedly attached to the third body. In an exemplary embodiment, the second connecting member may be fixedly attached to the first connecting member. In an exemplary embodiment, the headstock may be configured to move linearly along the second axis responsive to rotation of the leadscrew around the main longitudinal axis of the leadscrew.

[0023] In an exemplary embodiment, the vertical feeding mechanism may further include a worm gear and a worm wheel. In an exemplary embodiment, the worm wheel may be fixedly attached to the leadscrew. In an exemplary embodiment, the worm gear may be interconnected between the worm wheel and the second motor. In an exemplary embodiment, a first end of the worm gear may be attached to the second motor. In an exemplary embodiment, the worm gear may be meshedly engaged with the worm wheel.

[0024] In an exemplary embodiment, a main longitudinal axis of the worm gear may be perpendicular to the main longitudinal axis of the leadscrew. In an exemplary embodiment, the worm wheel and the leadscrew may be configured to rotate around the main longitudinal axis of the leadscrew responsive to rotation of the worm gear around the main longitudinal axis of the worm gear.

[0025] In an exemplary embodiment, the vertical feeding mechanism may further include a fine-tuning handle. In an exemplary embodiment, the fine-tuning handle may be attached to a second end of the worm gear. In an exemplary embodiment, the fine-tuning handle may be configured to rotate the worm gear around the main longitudinal axis of the worm gear responsive to rotation of the fine-tuning handle around the main longitudinal axis of the worm gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawing figures depict one or more implementations in accord with the present teachings, by way of example only, not by way of limitation. In the figures, like reference numerals refer to the same or similar elements.

[0027] FIG. 1 illustrates a perspective view of a face milling machine for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure.

[0028] FIG. 2 illustrates another perspective view of a face milling machine for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure.

[0029] FIG. 3 illustrates another perspective view of a face milling machine for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure.

[0030] FIG. 4 illustrates another perspective view of a face milling machine for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure.

[0031] FIG. 5 illustrates an exploded view of a face milling machine for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure.

[0032] FIG. 6 illustrates another exploded view of a face milling machine for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure.

[0033] FIG. 7 illustrates an exploded view of a face milling machine for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure.

[0034] FIG. 8 illustrates an exploded view of a face milling machine for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure. [0035] FIG. 9 illustrates an exploded view of a rotating mechanism, consistent with one or more exemplary embodiments of the present disclosure.

[0036] FIG. 10 illustrates an exploded view of a vertical feeding mechanism, consistent with one or more exemplary embodiments of the present disclosure. [0037] FIG. 11 illustrates an exploded view of a headstock, consistent with one or more exemplary embodiments of the present disclosure.

DESCRIPTION OF EMBODIMENTS

[0039] In the following detailed description, numerous specific details are set forth by way of examples in order to provide a thorough understanding of the relevant teachings. However, it should be apparent that the present teachings may be practiced without such details. In other instances, well known methods, procedures, components, and/or circuitry have been described at a relatively high-level, without detail, in order to avoid unnecessarily obscuring aspects of the present teachings.

[0040] The following detailed description is presented to enable a person skilled in the art to make and use the methods and devices disclosed in exemplary embodiments of the present disclosure. For purposes of explanation, specific nomenclature is set forth to provide a thorough understanding of the present disclosure. However, it will be apparent to one skilled in the art that these specific details are not required to practice the disclosed exemplary embodiments. Descriptions of specific exemplary embodiments are provided only as representative examples. Various modifications to the exemplary implementations will be readily apparent to one skilled in the art, and the general principles defined herein may be applied to other implementations and applications without departing from the scope of the present disclosure. The present disclosure is not intended to be limited to the implementations shown, but is to be accorded the widest possible scope consistent with the principles and features disclosed herein.

[0041] FIG. 1 shows a perspective view of a face milling machine 100 for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure. FIG. 2 shows another perspective view of face milling machine 100 for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure. FIG. 3 shows another perspective view of face milling machine 100 for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure. FIG. 4 shows another perspective view of face milling machine 100 for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure. FIG. 5 shows an exploded view of face milling machine 100 for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure. FIG. 6 shows another exploded view of face milling machine 100 for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure. FIG. 7 shows an exploded view of face milling machine 100 for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure. FIG. 8 shows an exploded view of face milling machine 100 for resurfacing cylinders and cylinder heads, consistent with one or more exemplary embodiments of the present disclosure.

[0042] As shown in FIGs. 1-8, in an exemplary embodiment, face milling machine 100 may include a chassis 102, a rotating mechanism 104, a vertical feeding mechanism 106, and a headstock 108. In an exemplary embodiment, rotating mechanism 104 may be mounted onto chassis 102. FIG. 9 shows an exploded view of rotating mechanism 104, consistent with one or more exemplary embodiments of the present disclosure. As shown in FIG. 9, in an exemplary embodiment, rotating mechanism 104 may include a first body 142, a first motor 144, and a control handle 146. In an exemplary embodiment, first body 142 may be attached rotatably to chassis 102. In an exemplary embodiment, when first body 142 is attached rotatably to chassis 102, it may mean that first body 142 is attached to chassis 102 in such a way that first body 142 is able to rotate. In an exemplary embodiment, first body 142 may be configured to rotate around a first axis 1422. In an exemplary embodiment, first motor 144 may be coupled to first body 142. In an exemplary embodiment, first motor 144 may be configured to rotate first body 142 around first axis 1422. In an exemplary embodiment, first axis 1422 may be fixed to chassis 102. In an exemplary embodiment, a user may use control handle 146 to rotate first body 142 around first axis 1422.

[0043] In an exemplary embodiment, vertical feeding mechanism 106 may be mounted onto rotating mechanism 104. FIG. 10 shows an exploded view of vertical feeding mechanism 106, consistent with one or more exemplary embodiments of the present disclosure. As shown in FIG. 10, in an exemplary embodiment, vertical feeding mechanism 106 may include a first guide rail 161a, a second guide rail 161b, a first slider 162a, a second slider 162b, a third slider 162c, and a fourth slider 162d. In an exemplary embodiment, first guide rail 161a may be attached to first body 142. In an exemplary embodiment, first guide rail 161a may be attached to first body 142 in such a way that a main longitudinal axis 1612 of first guide rail 161a is parallel with first axis 1422. In an exemplary embodiment, second guide rail 161b may be attached to first body 142. In an exemplary embodiment, second guide rail 161b may be attached to first body 142 may be attached to first body 142 in such a way that a main longitudinal axis 1614 of second guide rail 161b is parallel with first axis 1422. In an exemplary embodiment, it may be understood that when main longitudinal axis 1612 of first guide rail 161a and main longitudinal axis 1614 of second guide rail 161b are both parallel with first axis 1422, main longitudinal axis 1612 of first guide rail 161a and main longitudinal axis 1614 of second guide rail 161b may be parallel to each other.

[0044] In an exemplary embodiment, first slider 162a may be mounted slidably onto first guide rail 161a. In an exemplary embodiment, when first slider 162a is mounted slidably onto first guide rail 161a, it may mean that first slider 162a is mounted onto first guide rail 161a in such a way that first slider 162a is able to move linearly along first guide rail 161a. In an exemplary embodiment, first slider 162a may be configured to move linearly along main longitudinal axis 1612 of first guide rail 161a. In an exemplary embodiment, first guide rail 161a may be configured to limit movements of first slider 162a to a linear movement along main longitudinal axis 1612 of first guide rail 161a. In an exemplary embodiment, first slider 162a may be able to move linearly along main longitudinal axis 1612 of first guide rail 161a in an up direction 1616 and/or in a down direction 1618.

[0045] In an exemplary embodiment, second slider 162b may be mounted slidably onto first guide rail 161a. In an exemplary embodiment, when second slider 162b is mounted slidably onto first guide rail 161a, it may mean that second slider 162b is mounted onto first guide rail 161a in such a way that second slider 162b is able to move linearly along first guide rail 161a. In an exemplary embodiment, second slider 162b may be configured to move linearly along main longitudinal axis 1612 of first guide rail 161a. In an exemplary embodiment, first guide rail 161a may be configured to limit movements of second slider 162b to a linear movement along main longitudinal axis 1612 of first guide rail 161a. In an exemplary embodiment, second slider 162b may be able to move linearly along main longitudinal axis 1612 of first guide rail 161a in up direction 1616 and/or in down direction 1618.

[0046] In an exemplary embodiment, third slider 162c may be mounted slidably onto second guide rail 161b. In an exemplary embodiment, when third slider 162c is mounted slidably onto second guide rail 161b, it may mean that third slider 162c is mounted onto second guide rail 161b in such a way that third slider 162c is able to move linearly along second guide rail 161b. In an exemplary embodiment, third slider 162c may be configured to move linearly along main longitudinal axis 1614 of second guide rail 161b. In an exemplary embodiment, second guide rail 161b may be configured to limit movements of third slider 162c to a linear movement along main longitudinal axis 1614 of second guide rail 161b. In an exemplary embodiment, third slider 162c may be able to move linearly along main longitudinal axis 1614 of second guide rail 161b in up direction 1616 and/or in down direction 1618. [0047] As further shown in FIG. 1, FIG. 2, and FIG. 6, in an exemplary embodiment, vertical feeding mechanism 106 may further include a second body 163, a leadscrew 164, and a nut 165. In an exemplary embodiment, second body 163 may be fixedly attached to first body 142. In an exemplary embodiment, when second body 163 is fixedly attached to first body 142, it may mean that second body 163 is attached to first body 142 in such a way that second body 163 is not able to move relative to first body 142.

[0048] In an exemplary embodiment, leadscrew 164 may be attached to second body 163. In an exemplary embodiment, leadscrew 163 may be attached to second body 163 in such a way that leadscrew 163 is able to rotate around a main longitudinal axis 1632 of leadscrew 163. In an exemplary embodiment, main longitudinal axis 1632 of leadscrew 163 may be parallel with first axis 1422. In an exemplary embodiment, it may be understood that when main longitudinal axis 1632 of leadscrew 163 is parallel with first axis 1422, main longitudinal axis 1632 of leadscrew may be parallel with first axis 1422. In an exemplary embodiment, nut 165 may be mounted onto leadscrew 163. In an exemplary embodiment, nut 165 may be meshedly engaged with leadscrew 163. In an exemplary embodiment, it may be understood that when nut 165 is meshedly engaged with leadscrew 163, it may mean that nut 165 is mounted onto leadscrew 163 in such a way that an externally threaded section of leadscrew 163 are engaged with an internally threaded section of nut 165 so that leadscrew 163 and nut 165 may act as a screw and nut mechanism.

[0049] In an exemplary embodiment, when leadscrew 163 rotates around main longitudinal axis 1632 of leadscrew 163, nut 165 may move along main longitudinal axis 1632 of leadscrew 163. In an exemplary embodiment, nut 165 may be configured to move along main longitudinal axis 1632 of leadscrew 163 in up direction 1616 and/or in down direction 1618. In an exemplary embodiment, vertical feeding mechanism 106 may further include a first connecting member 166. In an exemplary embodiment, first connecting member 166 may be fixedly attached to first slider 162a, second slider 162b, third slider 162d, fourth slider 162d, and nut 165. In an exemplary embodiment, it may be understood that when first connecting member 166 is fixedly attached to first slider 162a, second slider 162b, third slider 162d, fourth slider 162d, and nut 165, it may mean that first connecting member 166 is attached to first slider 162a, second slider 162b, third slider 162d, fourth slider 162d, and nut 165 in such a way that first connecting member 166, first slider 162a, second slider 162b, third slider 162d, fourth slider 162d, and nut 165 are not able to move relative to each other. In other words, it may mean that first connecting member 166, first slider 162a, second slider 162b, third slider 162d, fourth slider 162d, and nut 165 are become integrated and move with each other. For example, if nut 165 moves along main longitudinal axis 1632 of leadscrew 163 in up direction 1616, first connecting member 166, first slider 162a, second slider 162b, third slider 162d, and fourth slider 162d also move in the same direction and with the same speed. In an exemplary embodiment, it may be understood that nut 165 and first connecting member 166 may be configured to move linearly along main longitudinal axis 1632 of leadscrew 163 in up direction 1616 and/or in down direction 1618. It may be due to the fact that nut 165 and first connecting member 166 are fixedly attached to first slider 162a, second slider 162b, third slider 162d, and fourth slider 162d which are all limited to move linearly along first axis 1422.

[0050] In an exemplary embodiment, in an exemplary embodiment, vertical feeding mechanism 106 may further include a second motor 167. In an exemplary embodiment, second motor 167 may be coupled to leadscrew 163. In an exemplary embodiment, second motor 167 may be configured to rotate leadscrew 163 around main axis 1632 of leadscrew 163. In an exemplary embodiment, vertical feeding mechanism 106 may further include a worm gear 1642 and a worm wheel 1645. In an exemplary embodiment, worm wheel 1645 may be fixedly attached to leadscrew 163. In an exemplary embodiment, worm gear 1642 may be interconnected between leadscrew 163 and second motor 167. In an exemplary embodiment, one end of worm gear 1642 may be connected to second motor 167 and the other end of worm gear 1642 may be meshedly engaged with worm wheel 1645. In an exemplary embodiment, when worm gear 1642 is meshedly engaged with worm wheel 1645, it may mean that threads of worm gear 1642 are engaged with threads of worm wheel 1645 in such a way that a rotational movement of one of them may urge the other one to rotate. In an exemplary embodiment, a main longitudinal axis 1643 of worm gear 1642 may be perpendicular to main longitudinal axis 1632 of leadscrew 163. In an exemplary embodiment, when worm gear 1642 rotates around main longitudinal axis 1643 of worm gear 1642, worm wheel 1645 and leadscrew 163 may rotate around main longitudinal axis 1632 of leadscrew 163.

[0051] In an exemplary embodiment, vertical feeding mechanism 106 may further include a fine-tuning handle 1644. In an exemplary embodiment, fine-tuning handle 1644 may be attached to worm gear 1642. In an exemplary embodiment, second motor 167 may be attached to one end of worm gear 1642 and fine-tuning handle 1644 may be attached to another end of worm gear 1642. In an exemplary embodiment, worm gear 1642 and leadscrew 163 may have a speed transmission ration of 30:1 or less. In an exemplary embodiment, when speed transmission ratio is 30:1, it may mean that with thirty rotation of worm gear 1642, leadscrew may rotate one turn. In light of this, a user may utilize fine-tuning handle 1644 to rotate leadscrew 163 very slightly and, consequently, the user may be able to move nut 165 up and/or down very slightly. In an exemplary embodiment, in view of the above explanation, a user may be able to move up and/or down the grinding tool very slightly and precisely by utilizing fine- tuning handle 1644. In an exemplary embodiment, fine-tuning handle 1644 may provide significant benefits. For example, by using fine-tuning handle 1644, a user may be able to feed tool holder 184 and the grinding tool in very small moments during the milling process. For example, the user may be able to feed tool holder 184 and the grinding tool in order of micrometers.

[0052] In an exemplary embodiment, when second motor 167 rotates leadscrew 163 around main axis 1632 of leadscrew 163 and in a first rotational direction, nut 165 may move linearly along main axis 1632 of leadscrew 163 and in up direction 1616. In an exemplary embodiment, when second motor 167 rotates leadscrew 163 around main axis 1632 of leadscrew 163 and in a second rotational direction, nut 165 may move linearly along main axis 1632 of leadscrew 163 and in up direction 1616. In an exemplary embodiment, first rotational direction may refer to a clockwise direction and second rotational direction may refer to a counterclockwise direction. Accordingly, when second motor 167 rotates leadscrew 163, first connecting member 166 may move upwardly and/or downwardly.

[0053] FIG. 11 shows an exploded view of headstock 108, consistent with one or more exemplary embodiments of the present disclosure. As shown in FIG. 11, in an exemplary embodiment, headstock 108 may include a third body 182, a third motor 183, a tool holder 184, and a second connecting member 186. In an exemplary embodiment, the third motor 183 may be disposed inside third body 182. In an exemplary embodiment, tool holder 184 may be connected to third motor 183. In an exemplary embodiment, tool holder 184 may be configured to hold a grinding tool. In an exemplary embodiment, third motor 183 may be configured to rotate tool holder 184 and the grinding tool around a second axis 188. In an exemplary embodiment, the grinding tool may be configured to grind a surface of a workpiece. In an exemplary embodiment, the workpiece may refer to a cylinder and/or a cylinder head. However, in different embodiment, the workpiece may refer to any other mechanical part. In an exemplary embodiment, second axis 188 may be parallel to first axis 1422. In an exemplary embodiment, face milling machine 100 may further include a bed 109. In an exemplary embodiment, the workpiece may be placed onto bed 109 and then the workpiece may be fixedly clamped to bed 109. Then, in an exemplary embodiment, the grinding tool may be used for grinding a top surface of the workpiece.

[0054] In an exemplary embodiment, second connecting member 186 may be fixedly attached to third body 182. In an exemplary embodiment, when second connecting member 186 is fixedly attached to third body 182, it may mean that second connecting member 186 is attached to third body 182 in such a way that second connecting member 186 is not able to move relative to third body 182. In an exemplary embodiment, second connecting member 186 may be fixedly attached to first connecting member 166. In an exemplary embodiment, when second connecting member 186 is fixedly attached to first connecting member 166, it may mean that second connecting member 186 is attached to first connecting member 166 in such a way that second connecting member 186 is not able to move relative to first connecting member 166. In an exemplary embodiment, when second motor 167 rotates leadscrew 163, tool holder 184 and the grinding tool may move upwardly and/or downwardly. For example, when leadscrew 163 rotates in a clockwise direction, tool holder 184 and the grinding tool may move upwardly along the second axis 188 and when leadscrew 163 rotates in a counterclockwise direction, tool holder 184 and the grinding tool may move downwardly along second axis 188.

[0055] As discussed above, face milling machine 100 may be used for resurfacing cylinders and head cylinders. However, face milling machine 100 may also be used for other milling purposes. In order to mill a top surface of a workpiece such as a cylinder or a cylinder head, a user may first fixedly clamp the workpiece onto bed 109 of face milling machine 100. Then, the user may lower headstock 108 by utilizing second motor 167 in a way such that the grinding tool is placed above and fairly near to the workpiece. Then, the user may turn on third motor 183 so that the grinding tool rotates and, to thereby, be able to implement the milling and removing material from the surface of the workpiece. Then, the user may use fine-tuning handle 1644 to precisely feed the grinding tool so that the desired depth is removed from the surface of the workpiece. Then, the user may activate first motor 144 so that headstock 108 rotates around second axis 188 and the milling process is done on the top surface of the workpiece.

[0056] Hence, face milling machine 100 may provide significant benefits. As discussed above, in designing and manufacturing face milling machine 100, some parts that are used in traditional milling machines, are removed and, instead, a new mechanism is used for lowering/raising and feeding the headstock of the milling machine. In the disclosed face milling machine 100, those parts are removed and, instead, a rail and slider mechanism, as discussed above, is utilized. It may be understood that the elements of the mentioned rail and slider mechanism (as discussed above) are low-priced and much easier to manufacture in comparison with the parts used in traditional milling machines. Therefore, the final cost for manufacturing of face milling machine 100 is much less than the cost associated with manufacturing traditional milling machines. Furthermore, the disclosed face milling machine 100 may be manufactured in a shorter time in comparison with traditional milling machines that are used for face milling.

[0057] While the foregoing has described what may be considered to be the best mode and/or other examples, it is understood that various modifications may be made therein and that the subject matter disclosed herein may be implemented in various forms and examples, and that the teachings may be applied in numerous applications, only some of which have been described herein. It is intended by the following claims to claim any and all applications, modifications and variations that fall within the true scope of the present teachings.

[0058] Unless otherwise stated, all measurements, values, ratings, positions, magnitudes, sizes, and other specifications that are set forth in this specification, including in the claims that follow, are approximate, not exact. They are intended to have a reasonable range that is consistent with the functions to which they relate and with what is customary in the art to which they pertain.

[0059] The scope of protection is limited solely by the claims that now follow. That scope is intended and should be interpreted to be as broad as is consistent with the ordinary meaning of the language that is used in the claims when interpreted in light of this specification and the prosecution history that follows and to encompass all structural and functional equivalents. Notwithstanding, none of the claims are intended to embrace subject matter that fails to satisfy the requirement of Sections 101, 102, or 103 of the Patent Act, nor should they be interpreted in such a way. Any unintended embracement of such subject matter is hereby disclaimed.

[0060] Except as stated immediately above, nothing that has been stated or illustrated is intended or should be interpreted to cause a dedication of any component, step, feature, object, benefit, advantage, or equivalent to the public, regardless of whether it is or is not recited in the claims. [0061] It will be understood that the terms and expressions used herein have the ordinary meaning as is accorded to such terms and expressions with respect to their corresponding respective spaces of inquiry and study except where specific meanings have otherwise been set forth herein. Relational terms such as first and second and the like may be used solely to distinguish one entity or action from another without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms “comprises,” “comprising,” or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by “a” or “an” does not, without further constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0062] The Abstract of the Disclosure is provided to allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the foregoing Detailed Description, it can be seen that various features are grouped together in various implementations. This is for purposes of streamlining the disclosure, and is not to be interpreted as reflecting an intention that the claimed implementations require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed implementation. Thus, the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separately claimed subject matter.

While various implementations have been described, the description is intended to be exemplary, rather than limiting and it will be apparent to those of ordinary skill in the art that many more implementations and implementations are possible that are within the scope of the implementations. Although many possible combinations of features are shown in the accompanying figures and discussed in this detailed description, many other combinations of the disclosed features are possible. Any feature of any implementation may be used in combination with or substituted for any other feature or element in any other implementation unless specifically restricted. Therefore, it will be understood that any of the features shown and/or discussed in the present disclosure may be implemented together in any suitable combination. Accordingly, the implementations are not to be restricted except in light of the attached claims and their equivalents. Also, various modifications and changes may be made within the scope of the attached claims.

Claims

What is claimed is:

1- A face milling machine for resurfacing cylinders and cylinder heads, the face milling machine comprising: a chassis; a rotating mechanism mounted onto the chassis, the rotating mechanism comprising: a first body rotatably attached to the chassis; and a first motor coupled to the first body, the first motor configured to rotate the first body around a first axis; a vertical feeding mechanism mounted onto the rotating mechanism, the vertical feeding mechanism comprising: a first guide rail attached to the first body, a main longitudinal axis of the first guide rail being parallel to the first axis; a second guide rail attached to the first body, a main longitudinal axis of the second guide rail being parallel to the second axis; a first slider, the first slider mounted slidably onto the first guide rail, the first slider configured to move linearly along the main longitudinal axis of the first guide rail, the first guide rail configured to limit movements of the first slider to a linear movement along the main longitudinal axis of the first guide rail; a second slider, the second slider mounted slidably onto the first guide rail, the second slider configured to move linearly along the main longitudinal axis of the first guide rail, the first guide rail configured to limit movements of the second slider to a linear movement along the main longitudinal axis of the first guide rail; a third slider, the third slider mounted slidably onto the second guide rail, the third slider configured to move linearly along the main longitudinal axis of the second guide rail, the second guide rail configured to limit movements of the third slider to a linear movement along the main longitudinal axis of the second guide rail; a fourth slider, the fourth slider mounted slidably onto the second guide rail, the fourth slider configured to move linearly along the main longitudinal axis of the second guide rail, the second guide rail configured to limit movements of the fourth slider to a linear movement along the main longitudinal axis of the second guide rail; a second body fixedly attached to the first body; a leadscrew attached to the second body, the leadscrew configured to rotate around a main longitudinal axis of the leadscrew, the main longitudinal axis of the leadscrew being parallel to the first axis; a nut mounted onto the leadscrew, the nut meshedly engaged with the leadscrew, the nut configured to move along the main longitudinal axis of the leadscrew responsive to rotation of the leadscrew around the main longitudinal axis of the leadscrew; a first connecting member, wherein: the first connecting member is fixedly attached to the first slider, the second slider, the third slider, the fourth slider, and the nut; and the first guide rail, the second guide rail, the first slider, the second slider, the third slider, and the fourth slider are configured to limit movements of the nut and the first connecting member to a linear movement along the main longitudinal axis of the leadscrew; a second motor, the second motor coupled to the leadscrew, the second motor configured to rotate the leadscrew around the main longitudinal axis of the leadscrew; a worm gear and a worm wheel, the worm gear and the worm wheel interconnected between the leadscrew and the second motor, the worm wheel fixedly attached to the leadscrew, a first end of the worm gear attached to the second motor, the worm gear meshedly engaged with the worm wheel, a main longitudinal axis of the worm gear perpendicular to the main longitudinal axis of the leadscrew, the leadscrew configured to rotate around the main longitudinal axis of the leadscrew responsive to rotation of the worm gear around the main longitudinal axis of the worm gear; and a fine-tuning handle, the fine-tuning handle attached to a second end of the worm gear, the fine-tuning handle configured to rotate the worm gear around the main longitudinal axis of the worm gear responsive to rotation of the fine-tuning handle around the main longitudinal axis of the worm gear; and a headstock, the headstock comprising: a third body; a third motor, the third motor disposed inside the third body; a tool holder, the tool holder connected to the third motor, the tool holder configured to hold a grinding tool, the third motor configured to rotate the tool holder and the grinding tool around a second axis, the second axis being parallel to the first axis, the grinding tool configured to grind a surface of a workpiece; and a second connecting member, the second connecting member fixedly attached to the third body, the second connecting member fixedly attached to the first connecting member; wherein the headstock is configured to move linearly along the second axis responsive to rotation of the leadscrew around the main longitudinal axis of the leadscrew. - A face milling machine for resurfacing cylinders and cylinder heads, the face milling machine comprising: a chassis; a rotating mechanism mounted onto the chassis, the rotating mechanism comprising: a first body rotatably attached to the chassis; and a first motor coupled to the first body, the first motor configured to rotate the first body around a first axis; a vertical feeding mechanism mounted onto the rotating mechanism, the vertical feeding mechanism comprising: a first guide rail attached to the first body, a main longitudinal axis of the first guide rail being parallel to the first axis; a second guide rail attached to the first body, a main longitudinal axis of the second guide rail being parallel to the second axis; a first slider, the first slider mounted slidably onto the first guide rail, the first slider configured to move linearly along the main longitudinal axis of the first guide rail, the first guide rail configured to limit movements of the first slider to a linear movement along the main longitudinal axis of the first guide rail; a second slider, the second slider mounted slidably onto the first guide rail, the second slider configured to move linearly along the main longitudinal axis of the first guide rail, the first guide rail configured to limit movements of the second slider to a linear movement along the main longitudinal axis of the first guide rail; a third slider, the third slider mounted slidably onto the second guide rail, the third slider configured to move linearly along the main longitudinal axis of the second guide rail, the second guide rail configured to limit movements of the third slider to a linear movement along the main longitudinal axis of the second guide rail; a fourth slider, the fourth slider mounted slidably onto the second guide rail, the fourth slider configured to move linearly along the main longitudinal axis of the second guide rail, the second guide rail configured to limit movements of the fourth slider to a linear movement along the main longitudinal axis of the second guide rail; a second body fixedly attached to the first body; a leadscrew attached to the second body, the leadscrew configured to rotate around a main longitudinal axis of the leadscrew, the main longitudinal axis of the leadscrew being parallel to the first axis; a nut mounted onto the leadscrew, the nut meshedly engaged with the leadscrew, the nut configured to move along the main longitudinal axis of the leadscrew responsive to rotation of the leadscrew around the main longitudinal axis of the leadscrew; a first connecting member, wherein: the first connecting member is fixedly attached to the first slider, the second slider, the third slider, the fourth slider, and the nut; and the first guide rail, the second guide rail, the first slider, the second slider, the third slider, and the fourth slider are configured to limit movements of the nut and the first connecting member to a linear movement along the main longitudinal axis of the leadscrew; and a second motor, the second motor coupled to the leadscrew, the second motor configured to rotate the leadscrew around the main longitudinal axis of the leadscrew; and a headstock, the headstock comprising: a third body; a third motor, the third motor disposed inside the third body; a tool holder, the tool holder connected to the third motor, the tool holder configured to hold a grinding tool, the third motor configured to rotate the tool holder and the grinding tool around a second axis, the second axis being parallel to the first axis, the grinding tool configured to grind a surface of a workpiece; and a second connecting member, the second connecting member fixedly attached to the third body, the second connecting member fixedly attached to the first connecting member; wherein the headstock is configured to move linearly along the second axis responsive to rotation of the leadscrew around the main longitudinal axis of the leadscrew. - The face milling machine of claim 2, wherein the vertical feeding mechanism further comprises a worm gear and a worm wheel, the worm gear and the worm wheel interconnected between the leadscrew and the second motor, the worm wheel fixedly attached to the leadscrew, a first end of the worm gear attached to the second motor, the worm gear meshedly engaged with the worm wheel. - The face milling machine of claim 3, wherein: a main longitudinal axis of the worm gear is perpendicular to the main longitudinal axis of the leadscrew; and the leadscrew is configured to rotate around the main longitudinal axis of the leadscrew responsive to rotation of the worm gear around the main longitudinal axis of the worm gear. - The face milling machine of claim 4, wherein the vertical feeding mechanism further comprises a fine-tuning handle, the fine-tuning handle attached to a second end of the worm gear, the fine-tuning handle configured to rotate the worm gear around the main longitudinal axis of the worm gear responsive to rotation of the fine-tuning handle around the main longitudinal axis of the worm gear.