Honing feed device and honing apparatus

Abstract

The honing feed device and honing equipment of the present disclosure comprises a feed sleeve, a feed shaft, a planetary ring, a fixed gear ring and a rotating gear ring. The feed sleeve is rotatably arranged and has a first gear portion on the outer circumferential surface. The feed shaft is rotatably arranged coaxially in the feed sleeve and has a second gear portion on the outer circumferential surface. The planetary ring is arranged outside the feed sleeve and has a first planetary gear and a second planetary gear, the first planetary gear is engaged with the first gear portion, and the second planetary gear is engaged with the second gear portion. The fixed gear ring is engaged with the first planetary gear. The rotating gear ring is engaged with the second planetary gear. When the feed sleeve and the feed shaft are driven, the feed shaft and the feed sleeve rotate at different speeds. When the rotating gear ring is driven alone, the feed shaft rotates relative to the feed sleeve. When the feed sleeve is driven alone, the feed shaft and the feed sleeve rotate at the same speed. The feed shaft of the honing feed device of the present disclosure has multiple motion states relative to the feed sleeve, which is beneficial to meet the requirements of multiple operating states when the honing head expands and shrinks.

Description

Technical Field

[0001] This disclosure relates to the field of honing equipment technology, and more particularly to honing feed devices and honing equipment. Background Technology

[0002] In related technologies, honing feed devices drive an expansion / contraction drive head to rotate within the honing head and move axially within the honing head. This causes the expansion / contraction drive head to drive the honing head to expand and contract radially. To meet the requirements of various operating states during the expansion and contraction of the honing head, multiple relative motion states are often required between the feed shaft driving the expansion / contraction drive head and the feed sleeve driving the honing head. For example, corresponding to various operating states such as the honing head's outer diameter remaining unchanged, rapid expansion / contraction, and slight expansion / contraction, the feed shaft often needs to have multiple relative motion states relative to the feed sleeve, such as rotating at the same speed, rotating independently, and rotating at different speeds. However, in related technologies, the feed shaft and feed sleeve of the honing feed device generally only have a single motion state, making it difficult to achieve the aforementioned multiple relative motion states and thus failing to meet the requirements of various operating states during the expansion and contraction of the honing head. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this disclosure is to provide a honing feed device and a honing equipment, wherein the feed shaft of the honing feed device can have multiple motion states relative to the feed sleeve, such as rotating at the same speed, rotating at different speeds, and rotating independently.

[0004] The honing feed device disclosed herein includes a feed assembly comprising: a feed sleeve rotatably disposed about its own axis and having a first gear portion on its outer peripheral surface; a feed shaft rotatably coaxially disposed within the feed sleeve and having a second gear portion on its outer peripheral surface; and a planetary ring sleeved outside the feed sleeve and having at least one first planetary gear and at least one second planetary gear. Both the first and second planetary gears are rotatably disposed about the axis of the planetary ring and their own axis. The first planetary gear meshes with the first gear portion from the outside of the first gear portion, and the second planetary gear meshes with the second gear portion from the outside of the second gear portion. The feed shaft has two gears: a fixed gear ring that meshes with the first planetary gear from the outside in a fixed position; and a rotating gear ring that meshes with the second planetary gear from the outside in a rotatable manner around its own axis. When both the feed sleeve and the feed shaft are driven to rotate, the feed shaft rotates differentially relative to the feed sleeve, through the engagement between the first planetary gear, the fixed gear ring, and the first gear portion, and the engagement between the second planetary gear, the rotating gear ring, and the second gear portion. When the feed sleeve and the feed shaft are both driven to rotate, the feed shaft rotates at a differential speed relative to the feed sleeve. When the rotating gear ring is driven to rotate alone, the feed shaft rotates relative to the unrotated feed sleeve. When the feed sleeve is driven to rotate alone, the feed shaft rotates at the same speed as the feed sleeve.

[0005] According to some embodiments provided in this disclosure, it further includes: a housing forming a receiving cavity for accommodating the feed assembly and a first opening for the feed sleeve to extend out, and for securing the fixing gear ring.

[0006] According to some embodiments provided in this disclosure, it further includes: a rotating seat, which is rotatably disposed about its own axis and is used to coaxially fix the rotating gear ring.

[0007] According to some embodiments provided in this disclosure, it further includes: a first bearing, mounted between the housing and the feed sleeve, and located at the first opening; and / or a second bearing, mounted between the housing and the feed sleeve, and located after the first bearing.

[0008] According to some embodiments provided in this disclosure, a third bearing is provided between the rotary seat and the housing; and / or a fourth bearing is provided between the rotary seat and the feed shaft.

[0009] According to some embodiments provided in this disclosure, there are multiple first planetary gears, and the multiple first planetary gears are evenly spaced around the planetary ring in the circumferential direction;

[0010] There are multiple second planetary gears, which are evenly spaced around the planetary ring in the circumference, and the multiple first planetary gears and the multiple second planetary gears are arranged alternately.

[0011] According to some embodiments provided in this disclosure, it also includes: a fifth bearing, installed between the feed shaft and the feed sleeve.

[0012] This disclosure also provides a honing apparatus, further comprising: a honing feed device as described above; a honing outer sleeve with a radially expandable and contractible honing head at one end, and fixedly connected to the feed sleeve; a honing inner sleeve rotatably coaxially disposed within the honing outer sleeve and fixedly connected to the feed shaft; and an expansion and contraction drive shaft axially movable and restricted from relative rotation disposed within the honing inner sleeve, threadedly fitted to the honing outer sleeve, and having an expansion and contraction drive head correspondingly disposed inside the honing head at one end, for driving the honing head to expand and contract during helical movement.

[0013] According to some embodiments provided in this disclosure, the outer diameter of the expansion and contraction drive head is configured to vary along the axial direction of the expansion and contraction drive shaft.

[0014] According to some embodiments provided in this disclosure, at least one support bearing is provided between the honing outer sleeve and the honing inner sleeve. Beneficial effects

[0015] The honing feed device and honing equipment disclosed herein have a honing feed device whose feed shaft can have multiple motion states relative to the feed sleeve, such as rotating at the same speed, rotating at a different speed, and rotating independently. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the honing feed device according to an embodiment of the present disclosure.

[0017] Figure 2 This is a cross-sectional view of a honing feed device according to an embodiment of the present disclosure.

[0018] Figure 3 This is a schematic diagram of the honing feed device described in this embodiment being driven.

[0019] Figure 4 This is a schematic diagram of the structure of a planetary ring according to an embodiment of the present disclosure.

[0020] Figure 5 This is a partially cutaway schematic diagram of the honing apparatus according to an embodiment of the present disclosure.

[0021] Figure label:

[0022] 100. Honing feed device;

[0023] 11. Feed sleeve; 111. First gear section;

[0024] 12. Feed shaft; 121. Second gear section;

[0025] 13. Planetary rings; 131. First planetary gear; 132. Second planetary gear;

[0026] 14. Fix the gear ring;

[0027] 15. Rotate the gear ring;

[0028] 16. First drive assembly; 161. First motor; 162. Belt drive component; 1621. Drive belt; 1622. First drive pulley; 1623. Second drive pulley;

[0029] 17. Second drive component;

[0030] 18. Rotary seat; 181. Seat body; 182. Rotating shaft;

[0031] 19. Outer shell; 191. Receiving cavity; 192. First opening; 193. Upper shell; 194. Lower shell;

[0032] 21. First bearing;

[0033] 22. Second bearing;

[0034] 23. Third bearing;

[0035] 24. Fourth bearing;

[0036] 25. Fifth bearing;

[0037] 91. Honing outer sleeve; 911. Honing head; 92. Honing inner sleeve; 93. Expansion / contraction drive shaft; 931. Expansion / contraction drive head; 94. Support bearing; 95. Threaded sleeve. Detailed Implementation

[0038] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the information disclosed herein. This disclosure can also be implemented or applied through other different specific embodiments, and various details in this disclosure can be modified or changed according to different viewpoints and application modules without departing from the spirit of this disclosure. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this disclosure can be combined with each other.

[0039] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, so that those skilled in the art to which this disclosure pertains can readily implement it. This disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

[0040] In this disclosure, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in any one or a group of embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples represented in this disclosure, as well as the features of those different embodiments or examples.

[0041] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this disclosure, "a set" means two or more, unless otherwise explicitly specified.

[0042] For the purpose of clarity, devices unrelated to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0043] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0044] While the terms first, second, etc., are used in some examples herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, step, operation, element, module, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, modules, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0045] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this disclosure. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in this specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0046] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the message of the present disclosure, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0047] In related technologies, honing feed devices drive an expansion / contraction drive head to rotate within the honing head and move axially within the honing head. This causes the expansion / contraction drive head to drive the honing head to expand and contract radially. To meet the requirements of various operating states during the expansion and contraction of the honing head, multiple relative motion states are often required between the feed shaft driving the expansion / contraction drive head and the feed sleeve driving the honing head. For example, corresponding to various operating states such as the honing head's outer diameter remaining unchanged, rapid expansion / contraction, and slight expansion / contraction, the feed shaft often needs to have multiple relative motion states relative to the feed sleeve, such as rotating at the same speed, rotating independently, and rotating at different speeds. However, in related technologies, the feed shaft and feed sleeve of the honing feed device generally only have a single motion state, making it difficult to achieve the aforementioned multiple relative motion states and thus failing to meet the requirements of various operating states during the expansion and contraction of the honing head.

[0048] In view of this, the present disclosure provides a honing feed device, wherein the feed shaft of the honing feed device can have multiple motion states relative to the feed sleeve, such as rotating at the same speed, rotating at different speeds, and rotating independently, which is beneficial to meet the requirements of various operating states when the honing head expands and contracts.

[0049] Figure 1 This is a schematic diagram of the honing feed device 100 according to an embodiment of the present disclosure. Figure 2 This is a cross-sectional view of the honing feed apparatus according to an embodiment of this disclosure. (See also...) Figure 1 and Figure 2 The honing feed device 100 disclosed herein includes a feed assembly, which includes a feed sleeve 11, a feed shaft 12, a planetary ring 13, a fixed gear ring 14, and a rotating gear ring 15.

[0050] The feed sleeve 11 is rotatably mounted around its own axis, and a first gear portion 111 is provided on the outer peripheral surface of the feed sleeve 11. Optionally, the first gear portion 111 is integrally formed on the outer peripheral surface of the feed sleeve 11, resulting in high connection strength and making it difficult for the two to separate. Of course, the first gear portion 111 can also be detachably connected to the outer peripheral surface of the feed sleeve 11.

[0051] Figure 3 This is a schematic diagram of the honing feed device 100 according to an embodiment of this disclosure being driven. (See also...) Figure 3 The feed sleeve 11 is connected to the first drive assembly 16 so that it can be driven by the first drive assembly 16 to rotate about its own axis or be locked by the first drive assembly 16 to restrict rotation when the first drive assembly 16 is not driven.

[0052] Optionally, the first drive assembly 16 includes a first motor 161 and a belt drive 162. The belt drive 162 is fixedly connected to the first motor 161 and the feed sleeve 11, respectively, and is used to drive the feed sleeve 11 to rotate under the drive of the first motor 161, and to lock the feed sleeve 11 when the first motor 161 is not driven, thereby restricting the rotation of the feed sleeve 11.

[0053] For example, the rotating component further includes a transmission belt 1621, a first transmission wheel 1622, and a second transmission wheel 1623. The first transmission wheel 1622 and the second transmission wheel 1623 are rotatably disposed inside the transmission belt 1621 and are fixedly connected to the drive shaft of the first motor 161 and the feed sleeve 11, respectively. Thus, when the first motor 161 is driven, the first transmission wheel 1622 can be driven to rotate by the first motor 161, thereby rotating the transmission belt 1621 and the second transmission wheel 1623. The rotation of the second transmission wheel 1623 drives the feed sleeve 11 to rotate. Correspondingly, when the first motor 161 is not driven, the second transmission wheel 1623 does not rotate and locks the rotation of the feed sleeve 11.

[0054] See Figure 2 The feed shaft 12 is rotatably coaxially disposed within the feed sleeve 11, and a second gear portion 121 is provided on the outer peripheral surface of the feed shaft 12. Optionally, the second gear portion 121 is detachably connected to the outer peripheral surface of the feed shaft 12 for easy assembly and manufacturing. Of course, the second gear portion 121 can also be integrally formed on the outer peripheral surface of the feed shaft 12.

[0055] The planetary ring 13 is fitted outside the feed sleeve 11. Figure 4 This is a schematic diagram of the structure of the planetary ring 13 according to an embodiment of this disclosure. (See attached diagram.) Figure 4 The planetary ring 13 is provided with at least one first planetary gear 131 and at least one second planetary gear 132. Both the first planetary gear 131 and the second planetary gear 132 are rotatably arranged about the axis of the planetary ring 13 and their own axis. The first planetary gear 131 meshes with the first gear portion 111 from the outside. The second planetary gear 132 meshes with the second gear portion 121 from the outside.

[0056] Optionally, the diameter ratio between the first planetary gear 131 and the first gear portion 111 is the same as the diameter ratio between the second planetary gear 132 and the second gear portion 121. For example, the first planetary gear 131 and the second planetary gear 132 have the same diameter, and the first gear portion 111 and the second gear portion 121 have the same diameter.

[0057] The fixed gear ring 14 is fixedly engaged with the first planetary gear 131 from the outside. The rotating gear ring 15 is rotatably engaged with the second planetary gear 132 from the outside about its own axis.

[0058] Optionally, the diameter ratio between the first planetary gear 131 and the fixed gear ring 14 is the same as the diameter ratio between the second planetary gear 132 and the rotating gear ring 15. For example, the first planetary gear 131 and the second planetary gear 132 have the same diameter, and the fixed gear ring 14 and the rotating gear ring 15 have the same diameter.

[0059] It is understood that the rotating gear ring 15 is rotatably connected to the second drive assembly 17 so that it can be driven by the second drive assembly 17 to rotate about its own axis or be locked by the second drive assembly 17 to limit rotation when the second drive assembly 17 is not driven.

[0060] Optionally, the second drive assembly 17 includes a second motor. The second motor is directly or indirectly fixedly connected to the rotating gear ring 15, and is used to rotate under the drive of the second motor, and is locked to rotate when the second motor is not driven.

[0061] Thus, through the engagement between the first planetary gear 131, the fixed gear ring 14, and the first gear section 111, and the engagement between the second planetary gear 132, the rotating gear ring 15, and the second gear section 121, when the feed sleeve 11 is driven to rotate independently, the feed shaft 12 rotates at the same speed as the feed sleeve 11. In other words, when the feed sleeve 11 is driven to rotate and the rotating gear ring 15 is locked, the first gear portion 111 of the feed sleeve 11 rotates accordingly. The rotation of the first gear portion 111 drives the first planetary gear 131 to rotate around the circumference of the fixed gear ring 14. That is, the first planetary gear 131 revolves around the circumference of the fixed gear ring 14 and rotates around its own axis, thereby driving the planetary ring 13 to rotate around its own axis. The rotation of the planetary ring 13 drives the second planetary gear 132 to rotate. The rotation of the second planetary gear 132 drives the second gear portion 121 and the feed shaft 12 to rotate, thereby achieving the purpose of making the feed shaft 12 rotate at the same speed as the feed sleeve 11 when the feed sleeve 11 is driven alone.

[0062] When the rotating gear ring 15 is driven to rotate independently, the feed shaft 12 rotates relative to the unrotated feed sleeve 11. In other words, when the rotating gear ring 15 is driven to rotate and the feed sleeve 11 is locked, the fixed gear ring 14 also remains fixed because the feed sleeve 11 is locked. Therefore, the planetary ring 13 and the first planetary gear 131 remain fixed. The rotation of the rotating gear ring 15 drives the second planetary gear 132 to rotate, and the rotation of the second planetary gear 132 drives the second gear section 121 to rotate, thereby causing the feed shaft 12 to rotate independently relative to the locked feed sleeve 11.

[0063] When both the feed sleeve 11 and the feed shaft 12 are driven to rotate, the feed shaft 12 rotates differentially relative to the feed sleeve 11. In other words, when the feed sleeve 11 and the rotating gear ring 15 are driven to rotate simultaneously, the first gear portion 111 of the feed sleeve 11 rotates accordingly. The rotation of the first gear portion 111 drives the first planetary gear 131 to rotate circumferentially around the fixed gear ring 14. That is, the first planetary gear 131 revolves around the circumference of the fixed gear ring 14 and rotates on its own axis, thereby driving the planetary ring 13 to rotate around its own axis. The rotation of the planetary ring 13 drives the second planetary gear 132 to rotate. Simultaneously, the rotating gear ring 15 drives the second planetary gear 132 to rotate. Thus, the second planetary gear 132 receives transmission from two rotational motions. Compared to the case where the second planetary gear 132 receives transmission from the rotation of the planetary ring 13 alone, thereby driving the feed shaft 12 and the feed sleeve 11 to rotate at the same speed, the rotational speed of the second planetary gear 132 changes. This causes the rotational speed of the feed shaft 12 driven by the second planetary gear 132 to change relative to the rotational speed of the feed sleeve 11, allowing the feed shaft 12 to accelerate / decelerate relative to the feed sleeve 11.

[0064] Optionally, see Figure 4 The system comprises multiple first planetary gears 131, which are evenly spaced around the planetary ring 13 in a circumferential arrangement. It also comprises multiple second planetary gears 132, which are evenly spaced around the planetary ring 13 in a circumferential arrangement. Furthermore, the first planetary gears 131 and the second planetary gears 132 are staggered in the thickness direction of the planetary ring 132, for example, by offsetting their upper and lower positions as shown in the figure. This creates a multi-layered planetary gear arrangement staggered in the thickness direction, allowing the planetary ring 13 to be relatively thin and occupying less space.

[0065] Optionally, see Figure 2The honing feed device 100 further includes a rotary seat 18. The rotary seat 18 is rotatably arranged about its own axis and is used to coaxially fix the rotating gear ring 15. Thus, when the rotary seat 18 is driven to rotate, for example, when the rotary seat 18 is driven by the second drive assembly 17, the rotary seat 18 can drive the rotating gear ring 15 to rotate about its own axis.

[0066] Optionally, the rotating seat 18 includes a seat body portion 181 and a rotating shaft portion 182. The seat body portion 181 is used to coaxially fix the rotating gear ring 15. The rotating shaft portion 182 extends from the seat body portion 181 in a direction away from the seat body portion 181 and is driven to rotate.

[0067] Thus, the second drive assembly 17 (e.g., the shaft of the second motor) can be conveniently fixedly connected to the shaft portion 182, thereby driving the shaft portion 182 and the seat portion 181 to rotate.

[0068] Optionally, see Figure 1 and Figure 2 The honing feed device 100 also includes a housing 19. The housing 19 has a receiving cavity 191 for accommodating the feed assembly, and a first opening 192 communicating with the receiving cavity 191 and allowing the feed sleeve 11 to extend out. The housing 19 also provides a fixed connection for the fixing gear ring 14. Thus, the housing 19 protects the feed assembly, providing waterproofing and dustproofing, which helps to extend the service life of the honing feed device 100.

[0069] Optionally, the outer casing 19 includes an upper casing 193 and a lower casing 194. The upper casing 193 and the lower casing 194 are detachably connected and together form the receiving cavity 191.

[0070] Optionally, the honing feed device 100 further includes a first bearing 21 and / or a second bearing 22. The first bearing 21 is mounted between the housing 19 and the feed sleeve 11, and is located at the first opening 192. The second bearing 22 is mounted between the housing 19 and the feed sleeve 11, and is spaced after the first bearing 21. Thus, the housing 19 and the feed sleeve 11 can be compactly assembled, and the feed sleeve 11 exhibits high stability when rotating within the housing 19.

[0071] Optionally, the honing feed device 100 further includes a third bearing 23 and / or a fourth bearing 24. The third bearing 23 is disposed between the rotary seat 18 and the housing 19. The fourth bearing 24 is disposed between the rotary seat 18 and the feed shaft 12. This facilitates stable rotation of both the rotary seat 18 and the feed sleeve 11.

[0072] Optionally, the honing feed device 100 further includes a fifth bearing 25. The fifth bearing 25 is mounted between the feed shaft 12 and the feed sleeve 11. Thus, the feed shaft 12 can rotate stably relative to the feed sleeve 11.

[0073] Figure 5 This is a partially cutaway schematic diagram of the honing apparatus according to an embodiment of this disclosure. (See also...) Figure 5 The present disclosure also provides a honing device, which includes the honing feed device 100, honing outer sleeve 91, honing inner sleeve 92 and expansion and contraction drive shaft 93 described in any of the above embodiments.

[0074] The honing sleeve 91 has a radially expandable and contractible honing head 911 at its end, and the honing sleeve 91 is fixedly connected to the feed sleeve 11 so that it can be rotated by the feed sleeve 11. Optionally, the honing head 911 can be made of an expandable and contractible material (such as an oilstone). When the honing head 911 is opened radially, it can expand radially, and when the honing head 911 is not opened radially, it can contract radially.

[0075] The honing inner sleeve 92 is rotatably disposed within the honing outer sleeve 91 about its own axis, and the honing inner sleeve 92 is fixedly connected to the feed shaft 12 so as to be driven by the feed shaft 12 to rotate. The expansion and contraction drive shaft 93 is axially movable and restricted from relative rotation disposed within the honing inner sleeve 92, and the expansion and contraction drive shaft 93 is threadedly engaged with the honing outer sleeve 91, and has an expansion and contraction drive head 931 correspondingly disposed inside the honing head 911 at its end, so as to drive the honing head 911 to expand and contract during helical movement.

[0076] Optionally, the expansion and contraction drive shaft 93 is movably disposed within the honing inner sleeve 92 along the axial direction, and both the expansion and contraction drive shaft 93 and the honing inner sleeve 92 have non-circular cross-sections. For example, both the expansion and contraction drive shaft 93 and the honing inner sleeve 92 have rectangular or polygonal cross-sections, such as squares or regular hexagons. Therefore, when the honing inner sleeve 92 rotates, the expansion and contraction drive shaft 93 can also rotate accordingly and move along the axial direction of the honing inner sleeve 92.

[0077] Optionally, the honing sleeve 91 is fixedly provided with a threaded sleeve 95, and the expansion and contraction drive shaft 93 is threadedly engaged in the threaded sleeve 95, thereby realizing the threaded engagement between the expansion and contraction drive shaft 93 and the honing sleeve 91.

[0078] Optionally, the length of the expansion and contraction drive shaft 93 within the honing inner sleeve 92 is configured to be greater than the maximum distance that the expansion and contraction drive head 931 needs to move when driving expansion and contraction. Therefore, when the honing inner sleeve 92 drives the expansion and contraction drive shaft 93 to rotate and move axially, the expansion and contraction drive shaft 93 will always remain at least partially within the honing inner sleeve 92, making it difficult to disengage from the honing inner sleeve 92. This helps ensure that the expansion and contraction process of the honing head 911 can always proceed smoothly.

[0079] Optionally, the outer diameter of the expansion and contraction drive head 931 is varied along the axial direction of the expansion and contraction drive shaft 93; for example, the expansion and contraction drive head 931 is at least partially tapered. Thus, the larger outer diameter portion of the expansion and contraction drive head 931, when inserted into the honing head 911, can drive the honing head 911 to expand radially, and the smaller outer diameter portion of the expansion and contraction drive head 931, when inserted into the honing head 911, can drive the honing head 911 to contract radially.

[0080] Optionally, at least one support bearing 94 is provided between the honing outer sleeve 91 and the honing inner sleeve 92. This allows the honing inner sleeve 92 to rotate stably within the honing outer sleeve 91, and even when the dimensions of both the honing outer sleeve 91 and the honing inner sleeve 92 are long, the frictional resistance during rotation of the honing inner sleeve 92 is low. For example, multiple support bearings 94 (e.g., two) are provided, spaced apart axially along the honing outer sleeve 91, to further improve the stability of the honing inner sleeve 92 during rotation.

[0081] When the honing equipment of this disclosure is in operation, before honing, when the honing head 911 is not inserted into the hole of the part to be honed, the feed shaft 12 rotates relative to the non-rotating feed sleeve 11, thereby causing the inner honing sleeve 92 to rotate relative to the non-rotating outer honing sleeve 91, and then causing the expansion and contraction drive head 931 to move spirally inside the honing head 911, thereby driving the honing head 911 to rapidly expand to a size close to or equal to the inner diameter of the hole of the part to be honed. Then, after the honing head 911 is inserted into the hole of the part to be honed, the feed shaft 12 rotates at the same speed relative to the feed sleeve 11, thereby causing the inner honing sleeve 92 to rotate at the same speed relative to the outer honing sleeve 91. This keeps the expansion drive head 931 and the honing head 911 relatively stationary, allowing the expansion state of the honing head 911 to be well maintained. The expanded honing head 911 can then rotate and cut the inner wall of the part to be honed, thereby enabling the honing head 911 to hone the inner diameter of the hole in the part to be honed more stably, thus increasing the inner diameter of the hole in the part to be honed. Meanwhile, after the honing head 911 is inserted into the hole of the part to be honed, during or before honing, if it is detected that the outer diameter of the honing head 911 after expansion and contraction is unqualified, and the expansion state of the honing head 911 needs to be finely adjusted, the feed shaft 12 rotates differentially relative to the feed sleeve 11, thereby causing the inner honing sleeve 92 to rotate differentially relative to the outer honing sleeve 91. This causes the expansion and contraction drive head 931 to move relatively slowly inside the honing head 911, expanding or contracting slightly, thereby slightly increasing or decreasing the outer diameter of the honing head 911, making the outer diameter of the honing head 911 closer to or equal to the inner diameter of the hole of the part to be honed, so that the honing head 911 can perform honing better.

[0082] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this disclosure should still be covered by the protection scope of this disclosure.

Claims

1. A honing feed device, characterized in that, Includes a feed assembly, the feed assembly comprising: The feed sleeve is rotatably mounted around its own axis and has a first gear portion on its outer circumferential surface; The feed shaft is rotatably coaxially disposed within the feed sleeve, and a second gear portion is provided on its outer circumferential surface; A planetary ring is fitted over the feed sleeve and is provided with at least one first planetary gear and at least one second planetary gear. The first planetary gear and the second planetary gear are rotatably arranged about the axis of the planetary ring and their own axis. The first planetary gear meshes with the first gear portion from the outside of the first gear portion, and the second planetary gear meshes with the second gear portion from the outside of the second gear portion. A fixed gear ring is fixedly engaged with the first planetary gear from the outside; The rotating gear ring can rotatably mesh with the second planetary gear from the outside around its own axis; and through the cooperation between the first planetary gear, the fixed gear ring and the first gear part and the second planetary gear, the rotating gear ring and the second gear part, when both the feed sleeve and the feed shaft are driven to rotate, the feed shaft rotates differentially relative to the feed sleeve; when the rotating gear ring is driven to rotate alone, the feed shaft rotates relative to the unrotated feed sleeve; when the feed sleeve is driven to rotate alone, the feed shaft rotates at the same speed as the feed sleeve.

2. The honing feed device according to claim 1, characterized in that, Also includes: The housing forms a receiving cavity for accommodating the feed assembly and a first opening for the feed sleeve to extend out, and also for securing the fixing gear ring.

3. The honing feed device according to claim 2, characterized in that, Also includes: The rotating seat is rotatable about its own axis and is used to coaxially fix the rotating gear ring.

4. The honing feed device according to claim 2, characterized in that, Also includes: A first bearing is installed between the housing and the feed sleeve, and is located at the first opening; and / or The second bearing is installed between the housing and the feed sleeve, and is located after the first bearing.

5. The honing feed device according to claim 3, characterized in that, A third bearing is provided between the rotating base and the housing; and / or A fourth bearing is provided between the rotary seat and the feed shaft.

6. The honing feed device according to claim 1, characterized in that, There are multiple first planetary gears, and the multiple first planetary gears are evenly spaced around the planetary ring in the circumferential direction; There are multiple second planetary gears, which are evenly spaced around the planetary ring in the circumference, and the multiple first planetary gears and the multiple second planetary gears are arranged alternately.

7. The honing feed device according to claim 1, characterized in that, Also includes: The fifth bearing is installed between the feed shaft and the feed sleeve.

8. Honing equipment, characterized in that, Also includes: The honing feed device as described in any one of claims 1 to 7; The honing sleeve has a honing head at its end that can expand and contract radially, and is fixedly connected to the feed sleeve; The honing inner sleeve is rotatably and coaxially disposed inside the honing outer sleeve and is fixedly connected to the feed shaft; An expansion and contraction drive shaft is axially movable and restricted from relative rotation within the honing inner sleeve, and is threaded into the honing outer sleeve. At its end, there is an expansion and contraction drive head correspondingly disposed inside the honing head, so as to drive the honing head to expand and contract during helical movement.

9. The honing equipment according to claim 8, characterized in that, The outer diameter of the expansion and contraction drive head is varied along the axial direction of the expansion and contraction drive shaft.

10. The honing equipment according to claim 8, characterized in that, At least one support bearing is provided between the honing outer sleeve and the honing inner sleeve.

Images