Chuck fixture assembly for grinding gear bores

Abstract

This application discloses a chuck fixture assembly for grinding the inner bore of gears, comprising: a chuck; three jaws movably disposed on the chuck; a connecting member, one end of which is connected to the jaws; a clamping ring, the other end of which is connected to the clamping ring; a clamping member disposed on the clamping ring and abutting against the gear; and internal teeth, the interior of the clamping ring having internal teeth adapted to the gear. When the gear needs to be clamped, the three jaws synchronously move towards the center of the chuck, causing the connecting member, clamping ring, and clamping member to move towards the center of the chuck, ultimately causing the clamping member to abut against the gear and the internal teeth to mesh with the external teeth on the gear, forming a stable clamping of the gear. This application improves the stability of the gear during the grinding process by setting internal teeth adapted to the external teeth of the gear, thereby improving the grinding effect of the gear inner bore.

Description

Technical Field

[0001] This application relates to the field of gear clamping technology, and in particular to a chuck clamping assembly for grinding gear inner bores. Background Technology

[0002] Gear internal grinding refers to the machining and optimization of the gear's inner bore to improve its operating efficiency and performance. The principle behind this is primarily the use of grinding technology to process the gear's inner bore, increasing its precision and smoothness. This avoids problems such as poor gear matching and noise during operation caused by low inner bore precision. The grinding process also helps prevent uneven friction on the gear during operation, thereby improving its operating efficiency and lifespan. During gear internal grinding, the gear needs to be clamped.

[0003] In existing technologies, gears are typically clamped using a triangular chuck. However, the claws of the triangular chuck do not fit the outer surface of the gear, resulting in instability of the gear during the grinding process.

[0004] Therefore, it is necessary to propose a chuck fixture assembly for grinding the inner bore of gears to improve gear stability, which has become an important technical problem that urgently needs to be solved. Utility Model Content

[0005] This application provides a chuck fixture assembly for grinding the inner bore of gears, aiming to solve the problem in the prior art where the claws of the triangular chuck do not fit with the outer surface of the gear, resulting in instability of the gear during the grinding process.

[0006] To achieve the above objectives, this application proposes a chuck fixture assembly for grinding the inner bore of a gear, comprising: a chuck; three jaws movably disposed on the chuck; a connector, one end of which is connected to the jaws; a clamping ring, the other end of which is connected to the clamping ring; a clamping member disposed on the clamping ring and abutting against the gear; and internal teeth, the inside of the clamping ring being provided with internal teeth adapted to the gear.

[0007] In some embodiments, the device further includes a support member disposed on the clamping ring.

[0008] In some embodiments, the clamping member further includes: a first connecting hole, wherein the clamping member is provided with a first connecting hole; a first connecting member, wherein the clamping member is detachably connected to the clamping ring via the first connecting member; a second connecting hole, wherein the clamping ring is provided with a second connecting member; and a second connecting member, wherein the clamping ring is detachably connected to the connecting member via the second connecting member.

[0009] In some embodiments, the clamping member further includes: a positioning protrusion, wherein the clamping member is provided with a positioning protrusion; and a positioning groove, wherein the clamping ring is provided with a positioning groove adapted to the positioning protrusion.

[0010] In some embodiments, the chuck further includes: a base disposed at the bottom end of the chuck; a butterfly bevel gear rotatably disposed between the chuck and the base; a small bevel gear rotatably disposed on the base and meshing with the butterfly bevel gear; a first thread disposed at the top end of the butterfly bevel gear; and a second thread disposed at the bottom end of the chuck jaws, engaging the first thread.

[0011] In some embodiments, the system further includes a base connection hole, wherein the base is provided with a base connection hole.

[0012] This application proposes a chuck fixture assembly for grinding the inner bore of gears, comprising: a chuck; three jaws movably mounted on the chuck; a connecting member, one end of which is connected to the jaws; a clamping ring, the other end of which is connected to the clamping ring; a clamping member disposed on the clamping ring and abutting against the gear; and internal teeth, the interior of the clamping ring having internal teeth adapted to the gear. When the gear needs to be clamped, the three jaws synchronously move towards the center of the chuck, causing the connecting member, clamping ring, and clamping member to move towards the center of the chuck, ultimately causing the clamping member to abut against the gear and the internal teeth to mesh with the external teeth on the gear, forming a stable clamping of the gear. This application improves the stability of the gear during the grinding process by setting internal teeth adapted to the external teeth of the gear, thereby improving the grinding effect of the gear inner bore. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural schematic diagram of a chuck fixture assembly for grinding gear inner holes according to an embodiment of this application; Figure 2 for Figure 1 Enlarged view of part A in the middle; Figure 3 This is a top view of a chuck fixture assembly for grinding gear inner bores according to an embodiment of this application; Figure 4 for Figure 3 Sectional view at point BB.

[0014] In the diagram: 1. Base; 2. Chuck; 3. Third connector; 4. Clamping ring; 5. Support; 6. Clamping part; 7. First connector; 8. Second connector; 9. Connector; 10. Claw; 11. Small bevel gear; 12. Internal gear; 13. Positioning protrusion; 14. Positioning groove; 15. Butterfly bevel gear; 16. Base connecting hole; 17. Bearing. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0018] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0019] See Figure 1 , Figure 2 and Figure 3 As shown, this application proposes a chuck fixture assembly for grinding the inner bore of a gear, comprising: a chuck 2; three jaws 10 movably disposed on the chuck 2; a connector 9, one end of which is connected to the jaws 10; a clamping ring 4, the other end of which is connected to the clamping ring 4; a clamping member 6 disposed on the clamping ring 4 and abutting against the gear; and internal teeth 12, the inside of the clamping ring 4 being provided with internal teeth 12 adapted to the gear.

[0020] The chuck 2 serves as the structural foundation of the chuck fixture assembly for grinding the inner bore of gears. All other structures on the chuck fixture assembly are directly or indirectly connected to the chuck 2. The three jaws 10 can simultaneously move towards or away from the center of the chuck 2 to clamp or release the gear. The chuck 2 is provided with a moving groove for the jaws 10 to move along the diameter of the chuck 2.

[0021] The connecting part 9 is located in the moving groove. The connecting part 9 is the structural basis of the clamping ring 4. The clamping part 6 and the internal teeth 12 are the core structures of the chuck fixture assembly used for grinding the inner hole of the gear. When the three jaws 10 move towards the center of the chuck 2 in a synchronized manner, the clamping part 6 abuts against the gear and the internal teeth 12 mesh with the external teeth on the gear, forming a stable clamping of the gear.

[0022] Specifically, when the gear needs to be clamped, the three jaws 10 synchronously move towards the center of the chuck 2, causing the connecting piece 9, the clamping ring 4, and the clamping piece 6 to move towards the center of the chuck 2. Ultimately, the clamping piece 6 abuts against the gear, and the internal teeth 12 mesh with the external teeth on the gear, forming a stable clamping of the gear. This application improves the stability of the gear during the grinding process by setting internal teeth 12 that are adapted to the external teeth of the gear, thereby improving the grinding effect of the gear's inner bore.

[0023] See Figure 1 and Figure 3 As shown, in some embodiments, the device further includes a support member 5, which is disposed on the clamping ring 4. The top end of the support member 5 is flush with the bottom end of the internal gear 12. Before the internal gear 12 contacts the gear, the support member 5 can support the gear, ensuring that the axis of the gear is parallel to the axis of the chuck 2. The support member 5 helps to ensure that the gear is coaxial with the chuck 2 after clamping, thus improving the grinding effect of the gear's inner hole.

[0024] See Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, the chuck further includes: a first connecting hole, which is provided on the clamping member 6; a first connecting member 7, through which the clamping member 6 is detachably connected to the clamping ring 4; the clamping ring 4 is provided with a threaded blind hole adapted to the first connecting member 7, and the first connecting member 7 is a screw, thereby achieving a detachable connection between the clamping ring 4 and the clamping member 6. A second connecting hole is provided on the clamping ring 4; a second connecting member 8, through which the clamping ring 4 is detachably connected to the connecting member 9. The connecting member 9 is provided with a threaded blind hole adapted to the second connecting member 8, thereby achieving a detachable connection between the connecting member 9 and the clamping ring 4. This detachable connection method facilitates the selection of different specifications of the clamping ring 4 and clamping member 6 according to the gear specifications, improving the practicality of the chuck fixture assembly used for grinding gear inner holes.

[0025] In this embodiment, the connector 9 includes a horizontal member and a vertical rod, which are integrally formed to create a generally T-shaped connector 9. The horizontal member is connected to the claw 10 via a third connector 3, and the vertical rod is connected to the clamping ring 4 via a second connector 8. The horizontal member is positioned within a moving groove, and the engagement between the horizontal member and the moving groove enhances the stability of the connector 9's radial movement.

[0026] See Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, it further includes: a positioning protrusion 13, which is provided on the clamping member 6; and a positioning groove 14, which is provided on the clamping ring 4 to adapt to the positioning protrusion 13. The cooperation of the positioning protrusion 13 and the positioning groove 14 restricts the radial position of the clamping member 6 on the clamping ring 4, making it easier to connect the clamping member 6 to the clamping ring 4.

[0027] In this embodiment, the positioning protrusion 13 is provided with a circumferential positioning block, and the positioning groove 14 is provided with a circumferential positioning hole. The circumferential positioning block and the circumferential positioning hole cooperate to limit the circumferential position of the clamping member 6 on the clamping ring 4, so as to quickly position the clamping member 6 on the clamping ring 4.

[0028] See Figure 3 and Figure 4As shown, in some embodiments, it further includes: a base 1, which is disposed at the bottom end of the chuck 2; the base 1 and the chuck 2 are detachably connected by screws. A butterfly bevel gear 15 is rotatably disposed between the chuck 2 and the base 1; a small bevel gear 11 is rotatably disposed on the base 1, and the small bevel gear 11 meshes with the butterfly bevel gear 15; a first thread is provided at the top end of the butterfly bevel gear 15; a second thread is provided at the bottom end of the chuck 10, which meshes with the first thread. The connecting screw between the base 1 and the chuck 2 is offset from the small bevel gear 11, and a bearing 17 is also provided between the small bevel gear 11 and the base 1, so that the small bevel gear 11 can rotate stably relative to the base 1. The small bevel gear 11 rotates, thereby driving the butterfly bevel gear 15 to rotate. The first thread is a planar thread. Through the meshing of the first thread and the second thread, when the small bevel gear 11 drives the butterfly bevel gear 15 to rotate, the three pawls 10 perform synchronous centripetal linear motion or synchronous centrifugal linear motion to clamp or release the gear.

[0029] See Figure 3 and Figure 4 As shown, in some embodiments, it further includes: a base connection hole 16, which is provided on the base 1. The base connection hole 16 is provided with an internal thread, and the chuck fixture assembly for grinding the inner hole of the gear is installed on the machine tool through the base connection hole 16 on the base 1.

[0030] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A chuck fixture assembly for grinding a bore of a gear, characterized by, include: Chuck (2); Three jaws (10) are movably disposed on the chuck (2); Connector (9), one end of which is connected to the claw (10); Clamping ring (4), the other end of the connector (9) is connected to the clamping ring (4); A clamping member (6) is disposed on the clamping ring (4) and abuts against the gear; Internal teeth (12): The clamping ring (4) is provided with internal teeth (12) adapted to the gear.

2. The chuck fixture assembly for grinding a bore of a gear as set forth in claim 1, wherein, Also includes: Support member (5), which is disposed on the clamping ring (4).

3. The chuck fixture assembly for grinding a bore of a gear as defined in claim 1 wherein, Also includes: The first connecting hole is provided on the clamping member (6); First connector (7), the clamping member (6) is detachably connected to the clamping ring (4) via the first connector (7); The second connecting hole is disposed on the clamping ring (4); The second connector (8) is used to detachably connect the clamping ring (4) to the connector (9).

4. The chuck fixture assembly for grinding a bore of a gear as defined in claim 1 wherein, Also includes: Positioning protrusion (13), the positioning protrusion (13) is provided on the clamping member (6); The positioning groove (14) is provided on the clamping ring (4) to adapt to the positioning protrusion (13).

5. The chuck fixture assembly for grinding a bore of a gear as defined in claim 1 wherein, Also includes: A base (1) is disposed at the bottom end of the chuck (2); A butterfly bevel gear (15) is rotatably disposed between the chuck (2) and the base (1). Small bevel gear (11), the small bevel gear (11) is rotatably disposed on the base (1), and the small bevel gear (11) meshes with the butterfly bevel gear (15). The first thread is provided at the top end of the butterfly bevel gear (15); The second thread is provided at the bottom end of the chuck (10) to engage with the first thread.

6. The chuck fixture assembly for grinding a bore of a gear as defined in claim 5 wherein, Also includes: The base connection hole (16) is provided on the base (1).

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