Clamping jaw structure with adjustable taper and chuck device

Abstract

The utility model discloses a taper-adjustable clamping jaw structure and a chuck device. The clamping jaw structure comprises a base, a locking clamping jaw, a taper adjusting assembly and a taper clamping jaw. The locking clamping jaw is connected to the base and is provided with a first ring piece contact surface; the lower portion of the taper clamping jaw is connected with the locking clamping jaw through a taper adjusting assembly, the upper portion of the taper clamping jaw is rotationally connected with the locking clamping jaw, and a second ring piece contact face is arranged on the taper clamping jaw. When the locking adjusting assembly moves in the direction perpendicular to the contact face of the first ring piece, the position of the locking clamping jaw is adjusted, and by adjusting the taper adjusting assembly to move in the direction perpendicular to the contact face of the second ring piece, angle adjustment of the taper clamping jaw is achieved. The clamping jaw structure is simple in structure, convenient to operate, high in reliability and capable of stably clamping molded surface annular parts with different diameters and different tapers, generalization of the clamping jaw structure is achieved, production efficiency is improved, production cost is reduced, and the clamping jaw structure is simple, convenient to operate and capable of being widely applied to the field of machining.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe machining part technical field, especially adjustable taper's chuck claw structure, chuck device. BACKGROUND

[0002] When using a lathe to machine an annular part, a chuck device with a chuck claw is used to fix the annular part on the lathe, and then a turning tool is used to machine the rotating annular part. For an annular part with a tapered inner and outer surface, it is difficult to stably clamp the part using a conventional chuck claw due to its special shape, and most parts need to be clamped using a special fixture. However, the production cost of a special fixture is high, and the efficiency is low for machining single parts. In addition, different fixtures are needed for different specifications of parts and different tapered surfaces, which further increases the production cost and machining difficulty.

[0003] Therefore, there is a need for a fixture that can stably clamp various tapered surfaces to improve production efficiency and reduce production cost. SUMMARY

[0004] The utility model discloses a kind of adjustable taper's chuck claw structure and chuck device, to solve the problem that different tapered surfaces need different fixtures when lathe machining annular part in prior art, provide adjustable taper's chuck claw structure and chuck device.

[0005] To achieve the above-mentioned utility model purposes, the utility model provides the following technical solutions:

[0006] An adjustable taper's chuck claw structure, comprising a base, a locking chuck claw, a taper adjusting assembly, and a taper chuck claw. The locking chuck claw is connected to the base, and a first ring piece contact surface is provided on the locking chuck claw. The lower part of the taper chuck claw is connected to the locking chuck claw through the taper adjusting assembly, and the upper part of the taper chuck claw is rotationally connected to the locking chuck claw. A second ring piece contact surface is provided on the taper chuck claw. When the taper adjusting assembly is adjusted to move in a direction perpendicular to the second ring piece contact surface, the taper adjusting assembly drives the lower part of the taper chuck claw to move, changing the angle between the second ring piece contact surface and the horizontal plane, and adjusting the taper.

[0007] In the above technical solution, the claw structure comprises a base, a locking claw, a taper adjusting assembly, and a taper claw. The locking claw is provided with a first ring part contact surface for close combination with the ring part. The lower part of the taper claw is connected with the locking claw, and the upper part is rotationally connected with the locking claw. The taper claw is provided with a second ring part contact surface for close combination with the ring part. When the ring part with different taper profiles is machined, the taper adjusting assembly is adjusted to move in the direction perpendicular to the second ring part contact surface. The taper adjusting assembly drives the lower part of the taper claw to move. Since the upper part is rotationally connected with the locking claw, the lower part is slightly rotated to change the angle between the second ring part contact surface and the horizontal surface, thereby realizing the adjustment of the taper. Through the above claw structure, the ring part with different taper profiles is stably clamped, and the generalization of the claw structure is realized.

[0008] Further, the claw structure further comprises a locking adjusting assembly. The locking claw is connected to the base through the locking adjusting assembly. When the locking adjusting assembly is adjusted to move in the direction perpendicular to the first ring part contact surface, the position of the locking claw is adjusted, thereby realizing the clamping of the parts with different diameters by the locking claw.

[0009] Further, the locking adjusting assembly comprises a locking bolt. The base is provided with a first placement cavity. The locking bolt is clamped in the first placement cavity. The outer surface of the locking bolt is provided with threads. The bottom surface of the locking claw is provided with threads matched with the locking bolt. The locking adjusting assembly uses the locking bolt. The locking bolt is threadedly connected with the locking claw, thereby facilitating the clamping adjustment of the parts with different diameters.

[0010] Further, the locking claw is provided with a second placement cavity. The taper adjusting assembly is fixed in the second placement cavity.

[0011] Further, the taper claw is arranged in the second placement cavity. The taper claw comprises a connecting part and a contact part. The connecting part is connected with the locking claw through the taper adjusting assembly. The contact part is provided with the second ring part contact surface. The contact part is rotationally connected with the locking claw.

[0012] Further, the taper adjusting assembly comprises a taper adjusting screw and a sliding block. The sliding block is sleeved on the taper adjusting screw. The sliding block is connected with the lower part of the taper claw. Preferably, the taper adjusting screw is rotationally connected to the bottom surface of the second placement cavity. The sliding block is provided with two protrusions in the direction perpendicular to the length direction of the taper adjusting screw. The connecting part is provided with an open slot corresponding to the protrusions on the sliding block. The protrusions are clamped in the open slot.

[0013] Further, the contact part is provided with a through hole, the locking claw is symmetrically provided with a first ear hole and a second ear hole at the top of the second placing cavity, and the first connecting piece is sequentially penetrated through the first ear hole, the through hole and the second ear hole, so that the contact part is rotationally connected with the locking claw.

[0014] Further, the first ring piece contact surface is a first plane or a first arc surface, and the first arc surface is matched with the outer surface or the inner surface of the annular part.

[0015] Further, the second ring piece contact surface is a second plane or a second arc surface, and the second arc surface is matched with the outer surface or the inner surface of the annular part.

[0016] The utility model discloses a chuck device on the other aspect still provides a kind of chuck device, for the clamping and fixing of lathe processing annular part, the chuck device includes chuck, at least three adjustable taper claw structures described above are provided on the chuck.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1, the utility model provides adjustable taper claw structure, by adjusting taper adjusting assembly movement along the direction perpendicular to second ring piece contact surface, realize the angle adjustment of taper claw, the stable clamping of the profile annular part of different tapers is carried out, realize the generalization of claw structure, improve production efficiency, reduce production cost, claw structure is simple, convenient operation, and high reliability can be widely applied to mechanical processing field.

[0019] 2, the utility model provides adjustable taper claw structure, by locking adjusting assembly, when movement along the direction perpendicular to first ring piece contact surface, realize the position adjustment of locking claw, the stable clamping of the profile annular part of different diameters, different tapers can be carried out, with high precision, can hold large diameter workpiece, clamping efficiency is high and the characteristics such as firm and reliable clamping. DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of adjustable taper claw structure in the embodiment;

[0021] Figure 2 It is the three-dimensional structural schematic diagram of base in the embodiment;

[0022] Figure 3 It is the three-dimensional structural schematic diagram of locking bolt in the embodiment;

[0023] Figure 4 It is the three-dimensional structural schematic diagram of locking claw in the embodiment;

[0024] Figure 5A three-dimensional structure diagram of the taper adjusting assembly in the embodiment;

[0025] Figure 6 A three-dimensional structure diagram of the taper clamping jaw in the embodiment;

[0026] In the figure, 1 is a base, 11 is a first placing cavity, 2 is a locking bolt, 3 is a locking clamping jaw, 31 is a first ring piece contact surface, 32 is a second placing cavity, 33 is a first ear hole, 34 is a second ear hole, 4 is a taper adjusting screw, 5 is a sliding block, 51 is a boss, 6 is a taper clamping jaw, 61 is a second ring piece contact surface, 62 is an open slot, 63 is a through hole, and 7 is a first connecting piece. DETAILED DESCRIPTION

[0027] In order to more clearly describe the utility model purpose, technical scheme and technical effect advantage of the specific implementation case of the utility model, the scheme in the specific embodiment will be described in detail below in combination with the drawings of the specification of the utility model. The specific technical scheme involved in the following specific embodiment is only for clearly and completely describing the innovative technical scheme of the utility model, and it is only a part of the specific implementation scheme that can be adopted by the utility model, not all embodiments, and should not be understood as a limitation on the innovative scheme of the utility model. Any scheme that adopts the same utility model concept of the utility model should be included in the protection scope of the utility model.

[0028] Secondly, the related description of the drawings involved in the specific embodiment of the utility model is only for facilitating the understanding of the utility model scheme by the technicians, and part of the details shown in the drawings is for facilitating the clear presentation of the technical scheme, and all the technical features in the drawings should not be considered as necessarily included in the specific implementation case, and more, the detail features in the drawings should not be considered as additional limitations on the innovative technical scheme of the utility model. The components in each embodiment described and shown in the drawings can be combined and arranged in different configurations, and all the combinations and arrangements should be considered as a part of all the embodiments of the innovative scheme of the utility model and included in the protection scope of the utility model.

[0029] In summary, the scheme or description presented in the specific embodiment and the drawings of the utility model is not intended to limit the protection scope, but only to represent the selected embodiments / cases that help the technicians to understand the related innovative scheme. Based on these embodiments, all the other equivalent or parallel embodiments obtained by the technicians in the art without making creative efforts belong to the protection scope of the utility model.

[0030] It should be noted that, in the description of the embodiments of the present application, the terms of orientation or position relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", and the like, are based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / device / apparatus of the present application is normally used. These terms of orientation or position relationship are only for the convenience of describing the present application or simplifying the description of the embodiments, and for the convenience of the skilled person to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present application.

[0031] In addition, the terms "horizontal", "vertical", "suspended", and the like do not mean that the corresponding device / component / element must be absolutely horizontal or vertical or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to understand that the corresponding device / component / element is set in a specific direction such as "horizontal", "vertical", "suspended", etc., and can have an error / bias of ±10% relative to the corresponding direction, more preferably an error / bias of ±8%, more preferably an error / bias of ±6%, more preferably an error / bias of ±5%, and more preferably an error / bias of ±4%. As long as the corresponding device / component / element is within the error / bias range, it can still achieve its role in the present application scheme.

[0032] In addition, the terms "first", "second", "third", and the like in the terms are only used to distinguish the same or similar components for description, and should not be understood as emphasizing or implying the relative importance of the specific components.

[0033] In addition, in the description of the embodiments of the present application, "several", "a plurality of", and "several" represent at least 2. It can be 3, 4, 5, 6, 7, 8, 9, etc. in any case, or even more than 9.

[0034] In addition, in the description of the technical scheme of the present application, unless otherwise specified / limited / limited, the terms "set", "install", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, such as welding, riveting, bolting, screwing, etc. The connection means commonly used in the art. Such connection can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the communication between two elements.

[0035] Example 1

[0036] Figure 1 The adjustable taper chuck structure comprises a base 1, a locking chuck 3, a taper adjusting assembly, and a taper chuck 6. The locking chuck 3 is connected to the base 1, and a first ring piece contact surface 31 is arranged on the locking chuck 3. The lower part of the taper chuck 6 is connected to the locking chuck 3 through the taper adjusting assembly, and the upper part of the taper chuck 6 is rotationally connected to the locking chuck 3. A second ring piece contact surface 61 is arranged on the taper chuck 6. When the taper adjusting assembly is adjusted to move in a direction perpendicular to the second ring piece contact surface 61, the taper adjusting assembly drives the lower part of the taper chuck 6 to move, so that the angle between the second ring piece contact surface 61 and the horizontal plane changes.

[0037] The base 1 is a supporting part of the entire chuck structure, which is made of high-strength material and has good stability and rigidity. As shown in FIG. 1, the base 1 is provided with a mounting hole, and the base 1 can be fixed on a lathe or chuck through a bolt. Figure 2

[0038] In some embodiments, the chuck structure further comprises a locking adjusting assembly, and the locking chuck 3 is connected to the base 1 through the locking adjusting assembly. When the locking adjusting assembly is adjusted to move in a direction perpendicular to the first ring piece contact surface, the position of the locking chuck 3 is adjusted, so that the locking chuck 3 clamps parts with different diameters. In this embodiment, the locking adjusting assembly comprises a locking bolt 2, as shown in FIG. 2. The outer surface of the locking bolt 2 is provided with threads, the base 1 is provided with a first placement cavity 11, the locking bolt 2 is clamped in the first placement cavity 11, and the bottom surface of the locking chuck 3 is provided with threads matched with the locking bolt 2. Through the above technical solution, when the locking bolt 2 is rotated to move in a direction perpendicular to the first ring piece contact surface, the thread connection between the locking bolt 2 and the locking chuck 3 drives the locking chuck 3 to move as a whole, so that the locking chuck 3 clamps parts with different diameters. Figure 3

[0039] More specifically, a sliding groove is arranged in the first placement cavity 11, the lower part of the locking chuck 3 is provided with a protrusion, and the locking chuck 3 is connected to the base 1 through the locking adjusting assembly. When the locking adjusting assembly is adjusted to move in a direction perpendicular to the first ring piece contact surface, the protrusion of the locking chuck 3 slides in the sliding groove.

[0040] In some embodiments, the locking chuck 3 is provided with a second placement cavity 32, as shown in FIG. 3. The side surface of the locking chuck 3 is provided with the first ring piece contact surface 31, which is a first plane or a first arc surface. The first ring piece contact surface 31 can be one surface or two surfaces, and the two surfaces are oppositely arranged. The second arc surface is matched with the outer surface or the inner surface of the ring-shaped part. Figure 4

[0041] ​​​The taper clamping jaw 6 comprises a connecting part and a contact part, the connecting part is connected with the locking clamping jaw 3 through the taper adjusting assembly, the contact part is provided with a second ring part contact surface 61, and the contact part is rotationally connected with the locking clamping jaw 3. Figure 6 The second ring part contact surface 61 is a second plane or a second arc surface, and the second ring part contact surface 61 can be one surface or two surfaces, the two surfaces are oppositely arranged, and the second arc surface is matched with the outer surface or the inner surface of the ring-shaped part.

[0042] The taper adjusting assembly is fixed in the second placing cavity 32, the taper clamping jaw 6 is arranged in the second placing cavity 32, and the taper adjusting assembly comprises a taper adjusting screw 4 and a sliding block 5, the sliding block 5 is sleeved on the taper adjusting screw 4, and the sliding block 5 is connected with the lower part of the taper clamping jaw 6. Figure 5 More specifically, the taper adjusting screw 4 is rotationally connected to the bottom surface of the second placing cavity 32, and the sliding block 5 is oppositely provided with two bosses 51 in the direction perpendicular to the length direction of the taper adjusting screw 4; specifically, the connecting part is provided with an open groove 62 corresponding to the boss 51 on the sliding block 5, and the boss 51 is clamped in the open groove 62. When the taper adjusting screw 4 is adjusted to move in the direction perpendicular to the second ring part contact surface 61, the sliding block 5 moves in the direction perpendicular to the second ring part contact surface 61, drives the connecting part of the taper clamping jaw 6 to move, the contact part is rotationally connected with the locking clamping jaw 3, and then drives the lower part to slightly rotate, so that the angle between the second ring part contact surface 61 and the horizontal plane changes, and the taper of the taper clamping jaw 6 is adjusted.

[0043] The contact part is provided with a through hole 63, the locking clamping jaw 3 is symmetrically provided with a first ear hole 33 and a second ear hole 34 at the top of the second placing cavity 32, and the first connecting piece 7 is sequentially penetrated through the first ear hole 33, the through hole 63 and the second ear hole 34, so that the contact part is rotationally connected with the locking clamping jaw 3. Specifically, the first connecting piece 7 is a pin.

[0044] In use, the ring-shaped part to be processed is placed on the inner side or the outer side of the jaw structure, the locking bolt 2 is rotated by rotating the adjusting handle, the position of the locking clamping jaw 3 is adjusted, the first ring part contact surface 31 is tightly attached to the inner surface or the outer surface of the part, the taper adjusting screw 4 is rotated, the angle of the taper clamping jaw 6 is adjusted, the second ring part contact surface 61 is tightly attached to the inner surface or the outer surface of the part, so that the clamping and fixing of the ring-shaped part are realized, and then the lathe is started to process the part.

[0045] Embodiment 2

[0046] The embodiment provides a taper-adjustable clamping jaw structure, which comprises a base 1, a locking adjusting assembly, a locking clamping jaw 3, a taper adjusting assembly, and a taper clamping jaw 6.

[0047] The base 1 is provided with a first placing cavity 11, the locking adjusting assembly comprises a locking bolt 2, the outer surface of the locking bolt 2 is provided with a thread, the locking bolt 2 is clamped in the first placing cavity 11, the bottom surface of the locking clamping jaw 3 is provided with a thread matched with the locking bolt 2, and the locking clamping jaw 3 is connected to the base 1 through the locking adjusting assembly.

[0048] The locking clamping jaw 3 is provided with a second placing cavity 32, the side surface of the locking clamping jaw 3 is provided with a first ring piece contact surface 31, the taper adjusting assembly is fixed in the second placing cavity 32, the taper clamping jaw 6 is arranged in the second placing cavity 32, the taper clamping jaw 6 comprises a connecting portion and a contact portion, the contact portion is provided with a second ring piece contact surface 61, the taper adjusting assembly comprises a taper adjusting screw 4 and a sliding block 5, the sliding block 5 is sleeved on the taper adjusting screw 4, the taper adjusting screw 4 is rotationally connected to the bottom surface of the second placing cavity 32, the sliding block 5 is relatively provided with two bosses 51 in the direction perpendicular to the length direction of the taper adjusting screw 4, the connecting portion is provided with an open slot 62 corresponding to the boss 51 on the sliding block 5, and the boss 51 is clamped in the open slot 62. The contact portion is provided with a through hole 63, the locking clamping jaw 3 is symmetrically provided with a first ear hole 33 and a second ear hole 34 at the top of the second placing cavity 32, and the first connecting piece 7 penetrates the first ear hole 33, the through hole 63 and the second ear hole 34 in sequence, so that the contact portion is rotationally connected with the locking clamping jaw 3.

[0049] Embodiment 3

[0050] The embodiment provides a chuck device for clamping and fixing an annular part machined by a lathe, and the chuck device comprises a chuck, and at least three chuck structures with adjustable tapers in the embodiment 1 are arranged on the chuck.

[0051] The chuck structure is slidably connected to the chuck and is driven by the driving assembly to move on the chuck, and the chuck end face is provided with at least three chuck structures, the at least three chuck structures are arranged in a central symmetry and are controlled by the driving assembly to synchronously move along the radial direction of the chuck; and the plurality of chuck structures are clamped on the inner side or the outer side of the annular part to form clamping and fixing of the annular part.

[0052] For those skilled in the art, when understanding the scheme described in the embodiment of the utility model, reference can be made to the conventional technical manual in the field, and for the above-mentioned terms, reference can be made to make appropriate understanding or adjustment, and the same or similar technical scheme implementation conditions can be deduced without creative labor.

[0053] The above examples only describe the basic principles, main features and / or advantages of the present application, and those skilled in the art should understand that the present application is not limited to the above examples. The above examples and the description of the application part only describe the principles or specific cases of the present application. Without departing from the essence of the present application, the present application has various changes and improvements. These changes and improvements all fall within the scope of the present application.

Claims

1. An adjustable taper jaw structure, characterized in that, Includes a base (1), locking claws (3), a taper adjustment assembly, and taper claws (6); The locking claw (3) is connected to the base (1), and the locking claw (3) is provided with a first ring contact surface (31); The lower part of the tapered jaw (6) is connected to the locking jaw (3) through the tapered adjustment component, and the upper part of the tapered jaw (6) is rotatably connected to the locking jaw (3). A second ring contact surface (61) is provided on the tapered jaw (6). When the taper adjustment assembly moves in a direction perpendicular to the contact surface (61) of the second ring, the taper adjustment assembly drives the lower part of the taper claw (6) to move, causing the angle between the contact surface (61) of the second ring and the horizontal plane to change.

2. The adjustable taper jaw structure according to claim 1, characterized in that, The locking claw (3) is provided with a second placement cavity (32), and the taper adjustment component is fixed in the second placement cavity (32).

3. The adjustable taper jaw structure according to claim 2, characterized in that, The tapered claw (6) is disposed in the second placement cavity (32). The tapered claw (6) includes a connecting part and a contact part. The connecting part is connected to the locking claw (3) through the tapered adjustment component. The contact part is provided with the second ring contact surface (61). The contact part is rotatably connected to the locking claw (3).

4. The adjustable taper jaw structure according to claim 3, characterized in that, The taper adjustment assembly includes a taper adjustment screw (4) and a slider (5). The slider (5) is sleeved on the taper adjustment screw (4) and connected to the connecting part.

5. The adjustable taper jaw structure according to claim 4, characterized in that, The slider (5) has two bosses (51) arranged opposite each other in the direction perpendicular to the length of the taper adjusting screw (4); the connecting part is provided with an opening groove (62) corresponding to the bosses (51) on the slider (5), and the bosses (51) are engaged in the opening groove (62).

6. The adjustable taper jaw structure according to claim 3, characterized in that, The contact part is provided with a through hole (63), and the locking claw (3) is symmetrically provided with a first ear hole (33) and a second ear hole (34) on the top of the second placement cavity (32). The first connector (7) passes through the first ear hole (33), the through hole (63), and the second ear hole (34) in sequence to realize the rotatable connection between the contact part and the locking claw (3).

7. The adjustable taper jaw structure according to claim 1, characterized in that, The first ring contact surface (31) is a first plane or a first arc surface, and the first arc surface matches the outer surface or inner surface of the ring part; the second ring contact surface (61) is a second plane or a second arc surface, and the second arc surface matches the outer surface or inner surface of the ring part.

8. The adjustable taper jaw structure according to any one of claims 1-7, characterized in that, The claw structure also includes a locking adjustment component. The locking claw (3) is connected to the base (1) through the locking adjustment component. When the locking adjustment component is adjusted to move in a direction perpendicular to the contact surface of the first ring, the position of the locking claw (3) is adjusted.

9. The adjustable taper jaw structure according to claim 8, characterized in that, The locking adjustment assembly includes a locking bolt (2), and a first placement cavity (11) is provided on the base (1). The locking bolt (2) is snapped into the first placement cavity (11). The outer surface of the locking bolt (2) is provided with threads, and the bottom surface of the locking claw (3) is provided with threads that match the locking bolt (2).

10. A chuck device, the chuck device comprising a chuck, characterized in that, The chuck is provided with at least three adjustable taper jaw structures as described in any one of claims 1-9.

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