Fixture for machining chamfered-edge circular-section shaft

Abstract

The utility model relates to the technical field of machining, and discloses a clamp for machining a chamfered-edge circular-section shaft, which comprises a clamping seat and a pressing plate. The clamping base is provided with an inclined clamping face and a vertical clamping face, and the included angle between the inclined clamping face and the vertical clamping face is larger than or equal to 40 degrees and smaller than or equal to 50 degrees. The pressing plate is movably arranged above the inclined clamping surface; the pressing plate, the inclined clamping face and the vertical clamping face jointly define a clamping interval used for clamping and fixing the chamfered circular section shaft. According to the device, the arc-shaped surface of the edge-chamfered circular section shaft abuts against the inclined clamping surface, the edge-chamfered plane of the edge-chamfered circular section shaft abuts against the vertical clamping surface, and then the edge-chamfered circular section shaft is positioned and placed. And then the pressing plate moves towards the edge-cutting circular section shaft and abuts against the arc-shaped face of the edge-cutting circular section shaft, and the edge-cutting circular section shaft is further installed in the clamping interval. Therefore, the chamfered-edge circular-section shaft can be quickly clamped and aligned, and the required time is relatively short.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining, for example to a clamp for machining a chamfered circular cross-section shaft. BACKGROUND

[0002] At present, the chamfered circular cross-section shaft is a kind of shaft parts, the cross-section shape of which is circular, but the part position of the circumference is processed with chamfering. The chamfering can be symmetrical or asymmetrical, and the purpose is to meet the specific installation, cooperation or functional requirements. The chamfered circular cross-section shaft is difficult to clamp and position during machining, so the machining efficiency is low.

[0003] In the related art, there is a clamp for clamping a chamfered circular cross-section shaft, comprising a V-shaped iron and a fixed plate. The V-shaped iron is provided with a V-shaped groove for clamping the arc surface of the chamfered circular cross-section shaft. The fixed plate is connected with the lathe through threads, and one side surface of the fixed plate abuts against the chamfered circular cross-section shaft and cooperates with the V-shaped iron to clamp and fix the chamfered circular cross-section shaft.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] In actual machining application process, the clamping and alignment and adjustment time of the chamfered circular cross-section shaft is relatively long, so the machining time of the chamfered circular cross-section shaft is long, and the machining efficiency is low.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. Content of the utility model

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor does it determine the key / important components or delineate the protection scope of these embodiments, but serves as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a clamp for machining a chamfered circular cross-section shaft to shorten the clamping and alignment and adjustment time of the chamfered circular cross-section shaft, shorten the machining time of the chamfered circular cross-section shaft, and improve the machining efficiency.

[0009] In some embodiments, the clamp for machining a chamfered circular cross-section shaft comprises a clamping seat and a pressing plate. The clamping seat is provided with an inclined clamping surface and a vertical clamping surface, and the included angle between the inclined clamping surface and the vertical clamping surface is greater than or equal to 40 degrees and less than or equal to 50 degrees. The pressing plate is movably arranged above the inclined clamping surface. The pressing plate, the inclined clamping surface and the vertical clamping surface jointly define a clamping interval for clamping and fixing the chamfered circular cross-section shaft.

[0010] Optionally, the included angle between the inclined clamping surface and the vertical clamping surface is equal to 45 degrees.

[0011] Optionally, the pressing plate is provided with a through hole, the clamping seat is provided with a threaded hole, the threaded rod is threadedly connected with the threaded hole through the through hole, and the threaded rod is provided with a nut at an end thereof away from the threaded hole, and the nut abuts against a side wall of the pressing plate away from the threaded hole.

[0012] Optionally, the clamping seat comprises a bottom plate and a vertical plate. The bottom plate is provided with an inclined clamping surface at one end thereof, and the vertical plate is fixedly connected to a middle portion of the bottom plate and provided with a vertical clamping surface on a side thereof facing the inclined clamping surface.

[0013] Optionally, the bottom plate is provided with a protruding block at one end thereof, and the protruding block is provided with an inclined clamping surface.

[0014] Optionally, a lower side wall of the bottom plate is provided with a positioning key.

[0015] Optionally, the bottom plate is provided with a plurality of mounting holes.

[0016] Optionally, the clamping seat further comprises a rib plate. The rib plate is arranged on a side of the vertical plate away from the inclined clamping surface and fixedly connected with the bottom plate and the vertical plate.

[0017] The clamp for machining the edge-reduced circular cross-section shaft provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] The arc surface of the edge-reduced circular cross-section shaft abuts against the inclined clamping surface, and the edge-reducing plane of the edge-reduced circular cross-section shaft abuts against the vertical clamping surface, so that the edge-reduced circular cross-section shaft is positioned and placed. Then, the pressing plate moves towards the edge-reduced circular cross-section shaft and abuts against the arc surface of the edge-reduced circular cross-section shaft, so that the edge-reduced circular cross-section shaft is installed in the clamping space. Therefore, the edge-reduced circular cross-section shaft can be quickly clamped and aligned, and the required time is relatively short. The number of clamping and alignment for machining the edge-reduced circular cross-section shaft is reduced, the machining time of the edge-reduced circular cross-section shaft is shortened, the machining efficiency is improved, and the stability of clamping is higher.

[0019] The general description above and the following description below are exemplary and explanatory only and are not intended to be limiting. BRIEF DESCRIPTION OF DRAWINGS

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and are not intended to be limiting of the embodiments, in which like reference numerals refer to like elements in the drawings and in which:

[0021] Figure 1 is a structural schematic diagram of a clamp for machining an edge-reduced circular cross-section shaft provided by the embodiments of the present disclosure;

[0022] Figure 2is a structural schematic diagram of a clamp for processing a chamfered round section shaft provided by an embodiment of the present disclosure;

[0023] Figure 3 is a structural schematic diagram of a clamp for processing a chamfered round section shaft provided by an embodiment of the present disclosure;

[0024] Figure 4 is an exploded schematic diagram of a clamp structural schematic diagram for processing a chamfered round section shaft provided by an embodiment of the present disclosure.

[0025] Reference signs:

[0026] 100, clamping seat; 101, inclined clamping surface; 102, vertical clamping surface; 010, clamping interval; 110, threaded hole; 120, bottom plate; 121, protruding block; 122, positioning key; 123, mounting hole; 130, vertical plate; 140, rib plate; 200, pressing plate; 210, through hole; 310, screw; 320, nut; 330, gasket. DETAILED DESCRIPTION

[0027] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0028] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so as to implement the embodiments of the present disclosure described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0029] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0030] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0031] Unless otherwise specified, the term "a plurality of" means two or more.

[0032] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the preceding and following objects. For example, A / B means: A or B.

[0033] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0034] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0035] In combination Figures 1-2 As shown in the drawings, the embodiments of the present disclosure provide a clamp for processing a chamfered circular cross-section shaft, comprising: a clamping seat 100, a pressing plate 200. The clamping seat 100 is provided with an inclined clamping surface 101 and a vertical clamping surface 102, and the included angle between the inclined clamping surface 101 and the vertical clamping surface 102 is greater than or equal to 40 degrees and less than or equal to 50 degrees; the pressing plate 200 is movably arranged above the inclined clamping surface 101; wherein the pressing plate 200 and the inclined clamping surface 101 and the vertical clamping surface 102 jointly limit a clamping interval 010 for clamping and fixing the chamfered circular cross-section shaft.

[0036] The arc surface of the chamfered round section shaft is in abutment with the inclined clamping surface 101, and the chamfered plane of the chamfered round section shaft is in abutment with the vertical clamping surface 102, so that the positioning and placement of the chamfered round section shaft are completed. Then the pressing plate 200 is moved towards the chamfered round section shaft and is in abutment with the arc surface of the chamfered round section shaft, so that the chamfered round section shaft is installed in the clamping space 010. Therefore, the chamfered round section shaft is quickly clamped and aligned, and the required time is relatively short. The number of clamping and alignment of the chamfered round section shaft during machining is reduced, the machining time of the chamfered round section shaft is shortened, the machining efficiency is improved, and the stability of clamping is higher.

[0037] It can be understood that, since the included angle between the inclined clamping surface 101 and the vertical clamping surface 102 is greater than or equal to 40 degrees and less than or equal to 50 degrees, the inclined clamping surface 101 and the vertical clamping surface 102 have a relatively large opening, and chamfered round section shafts of different sizes can be smoothly placed between the inclined clamping surface 101 and the vertical clamping surface 102. For example, a relatively small chamfered round section shaft can be placed in a relatively deep position between the inclined clamping surface 101 and the vertical clamping surface 102, and a relatively large chamfered round section shaft can be placed in a relatively shallow position between the inclined clamping surface 101 and the vertical clamping surface 102. The adaptive range is relatively large.

[0038] Optionally, the clamping plate and / or the pressing plate 200 are made of cast iron material. In this way, the clamping plate and / or the pressing plate 200 made of cast iron material have relatively high strength, which increases the stability of clamping the chamfered round section shaft.

[0039] Optionally, the included angle between the inclined clamping surface 101 and the vertical clamping surface 102 is equal to 45 degrees. In this way, the inclined clamping surface 101 and the vertical clamping surface 102 have a relatively large opening, and chamfered round section shafts of different sizes can be smoothly placed between the inclined clamping surface 101 and the vertical clamping surface 102, and the adaptive range is relatively large.

[0040] Optionally, the plane in which the pressing plate 200 is located intersects the inclined clamping surface 101, and the plane in which the pressing plate 200 is located intersects the vertical clamping surface 102. In this way, in the case that the plane in which the pressing plate 200 is located is parallel to the plane in which the inclined clamping surface 101 is located, the risk of the chamfered round section shaft relatively sliding between the pressing plate 200 and the inclined clamping surface 101 is relatively large. Similarly, in the case that the plane in which the pressing plate 200 is located is parallel to the plane in which the vertical clamping surface 102 is located, the risk of the chamfered round section shaft relatively sliding between the pressing plate 200 and the vertical clamping surface 102 is relatively large. Therefore, the plane in which the pressing plate 200 is located intersects the inclined clamping surface 101, and the plane in which the pressing plate 200 is located intersects the vertical clamping surface 102, which can stably clamp the chamfered round section shaft and reduce the risk of the chamfered round section shaft shaking during machining.

[0041] Specifically, in the case of installing the chamfered round section shaft in the clamping interval 010, the side surface of the chamfered round section shaft abutting against the pressing plate 200 intersects with the inclined clamping surface 101 and the vertical clamping surface 102 respectively. In this way, the chamfered round section shaft can be clamped more stably, and the risk of the chamfered round section shaft shaking during processing is reduced.

[0042] In combination Figure 3 As shown, the pressing plate 200 is provided with a through hole 210, the clamping seat 100 is provided with a threaded hole 110, the threaded rod 310 is threadedly connected with the threaded hole 110 through the through hole 210, and the threaded rod 310 is provided with a nut 320 at an end away from the threaded hole 110. The nut 320 abuts against a side wall of the pressing plate 200 away from the threaded hole 110. In this way, rotating the nut 320 relative to the threaded rod 310 moves the nut 320, which in turn drives the pressing plate 200 to move towards the chamfered round section shaft until the pressing plate 200 abuts against the chamfered round section shaft. Thus, the chamfered round section shaft is clamped and fixed, the operation is relatively simple, and the structure is relatively simple. By changing the position of the nut 320 relative to the threaded rod 310, the size of the clamping interval 010 can also be adjusted to adapt to chamfered round section shafts of different sizes.

[0043] Optionally, the axis of the threaded rod 310 is perpendicular to the plane in which the pressing plate 200 lies. In this way, rotating the nut 320 moves the pressing plate 200 along the axis of the threaded rod 310 until the pressing plate 200 contacts the chamfered round section shaft, reducing the risk of the pressing plate 200 pressing the threaded rod 310.

[0044] Optionally, the clamping seat 100 is provided with a plurality of threaded holes 110, and the plurality of threaded holes 110 are arranged along the axial direction of the chamfered round section shaft. In this way, the threaded rod 310 can be connected with one of the plurality of threaded holes 110, and the position of the threaded rod 310 and the pressing plate 200 can be flexibly adjusted so that the pressing plate 200 better clamps the chamfered round section shaft, improving the stability of clamping.

[0045] Specifically, the threaded hole 110 is provided with two. In this way, the threaded rod 310 can be connected with one of the two threaded holes 110, and the position of the threaded rod 310 and the pressing plate 200 can be flexibly adjusted so that the pressing plate 200 better clamps the chamfered round section shaft, improving the stability of clamping.

[0046] Optionally, the pressing plate 200 is provided with a plurality of, and the plurality of pressing plates 200 are arranged along the axial direction of the chamfered round section shaft. In this way, the plurality of pressing plates 200 correspond to the plurality of threaded holes 110, each pressing plate 200 can be connected to a threaded hole 110 by a threaded rod 310, and the number of pressing plates 200 abutting against the chamfered round section shaft is relatively large, and the stability of clamping is relatively high.

[0047] Specifically, in the case that multiple pressing plates 200 are provided, a through hole 210 is arranged on each pressing plate 200, and a screw rod 310 is arranged in each through hole 210.

[0048] Optionally, two pressing plates 200 are provided. In this way, the two pressing plates 200 correspond to the two threaded holes 110, and each pressing plate 200 is connected to one threaded hole 110 by one screw rod 310. The number of pressing plates 200 that abut against the edge-reduced circular cross-section shaft is relatively large, and the stability of clamping the edge-reduced circular cross-section shaft is relatively high.

[0049] Specifically, the end of the pressing plate 200 close to the inclined surface is gradually narrowed.

[0050] Optionally, in the case that the edge-reduced circular cross-section shaft is installed in the clamping interval 010, one end of the pressing plate 200 abuts against the top of the clamping seat 100. In this way, one end of the pressing plate 200 abuts against the edge-reduced circular cross-section shaft, and the other end of the pressing plate 200 abuts against the top of the clamping seat 100, thereby reducing the risk of shaking of the pressing plate 200 during machining of the edge-reduced circular cross-section shaft, and the stability is relatively high.

[0051] Optionally, a gasket 330 is arranged between the nut 320 and the pressing plate 200, one side wall of the gasket 330 abuts against the nut 320, and the other side wall of the gasket 330 abuts against the pressing plate 200. In this way, the contact area between the gasket 330 and the pressing plate 200 is relatively large, and the stability is relatively high. In addition, the risk of relative rotation between the nut 320 and the screw rod 310 during machining of the edge-reduced circular cross-section shaft is relatively low.

[0052] Optionally, the clamping seat 100 comprises a bottom plate 120 and a vertical plate 130. The end of the bottom plate 120 has an inclined clamping surface 101, and the bottom end of the vertical plate 130 is fixedly connected to the middle part of the bottom plate 120. The side surface of the vertical plate 130 facing the inclined clamping surface 101 is a vertical clamping surface 102. In this way, the bottom plate 120 can be installed on a machining machine tool, and the contact area between the bottom plate 120 and the machining machine tool is relatively large, and the stability of installation is relatively high.

[0053] Optionally, in the case that the edge-reduced circular cross-section shaft is installed in the clamping interval 010, one end of the pressing plate 200 abuts against the top of the vertical plate 130. In this way, one end of the pressing plate 200 abuts against the edge-reduced circular cross-section shaft, and the other end of the pressing plate 200 abuts against the top of the vertical plate 130, thereby reducing the risk of shaking of the pressing plate 200 during machining of the edge-reduced circular cross-section shaft, and the stability is relatively high.

[0054] Optionally, the end of the bottom plate 120 is provided with a protruding block 121, and the protruding block 121 has the inclined clamping surface 101. In this way, the protruding block 121 protrudes to a relatively high height, and in the case of clamping the edge-reduced circular cross-section shaft, the distance between the edge-reduced circular cross-section shaft and the machining machine tool is relatively large, and machining is relatively convenient.

[0055] Optionally, multiple protrusions 121 are provided, and the multiple protrusions 121 are arranged upward along the axial direction of the chamfered circular section. In this way, when the chamfered circular section shaft is clamped, multiple protrusions 121 are in contact with the chamfered circular section shaft, resulting in a relatively large number of contact points and better clamping stability.

[0056] Specifically, there are two protrusions 121. In this way, when clamping a shaft with a chamfered circular cross-section, the two protrusions 121 are in contact with the shaft, resulting in more contact points and better clamping stability.

[0057] Optionally, two protrusions 121 are disposed at both ends of the same side of the base plate 120. In this way, the distance between the protrusions 121 is relatively large, and the two protrusions 121 simultaneously contact the shaft of the chamfered circular section. The span between the two contact positions is large, and the clamping stability is relatively high.

[0058] Combination Figure 4 As shown, optionally, a positioning key 122 is provided on the lower side wall of the base plate 120. In this way, since the machining lathe has a mounting groove, the positioning key 122 can be inserted into the mounting groove to provide mounting positioning and guidance for the base plate 120.

[0059] Optionally, multiple positioning keys 122 are provided, and each positioning key 122 is fixedly connected to the base plate 120. In this way, by installing the machine tool into the mounting slot through multiple positioning keys 122, the installation stability is further improved, and the risk of relative displacement between the base plate 120 and the machine tool is relatively low.

[0060] Specifically, there are two positioning keys 122. In this way, by installing the machine tool into the mounting slot using two positioning keys 122, the stability of the installation is relatively improved, and the risk of relative displacement between the base plate 120 and the machine tool is relatively low.

[0061] Optionally, the base plate 120 is provided with multiple mounting holes 123. In this way, it can be installed into the mounting slot of the machine tool by bolts passing through the mounting holes 123. Since there are multiple mounting holes 123, there are relatively more installation positions, the installation stability is relatively high, and the risk of displacement of the base plate 120 relative to the machine tool is relatively low.

[0062] Specifically, the base plate 120 has four mounting holes 123. Four bolts are then passed through these four mounting holes 123 to secure the base plate 120 to the machine tool. This provides a relatively large number of mounting positions, resulting in relatively high installation stability and a relatively low risk of displacement of the base plate 120 relative to the machine tool.

[0063] Specifically, the four mounting holes 123 are evenly arranged on both sides of the vertical plate 130. In this way, the mounting span is relatively large, and the mounting stability is relatively high.

[0064] Optionally, the clamping seat 100 further comprises a rib plate 140. The rib plate 140 is arranged on the side of the vertical plate 130 away from the inclined clamping surface 101, and is fixedly connected with the bottom plate 120 and the vertical plate 130. In this way, the connection strength between the bottom plate 120 and the vertical plate 130 is improved through the rib plate 140.

[0065] Specifically, the rib plate 140 is triangular.

[0066] Optionally, the rib plate 140 is provided in plurality. In this way, the number of rib plates 140 is relatively large, and the connection strength between the bottom plate 120 and the vertical plate 130 is improved.

[0067] Specifically, the rib plate 140 is provided in two. In this way, the number of rib plates 140 is relatively large, and the connection strength between the bottom plate 120 and the vertical plate 130 is improved.

[0068] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments are merely representative of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A fixture for machining shafts with chamfered circular cross-sections, characterized in that, include: The clamping base (100) is provided with an inclined clamping surface (101) and a vertical clamping surface (102), and the included angle between the inclined clamping surface (101) and the vertical clamping surface (102) is greater than or equal to 40 degrees and less than or equal to 50 degrees. The pressure plate (200) is movably positioned above the inclined clamping surface (101); Among them, the pressure plate (200), together with the inclined clamping surface (101) and the vertical clamping surface (102), jointly define the clamping interval (010) for clamping and fixing the beveled circular section shaft.

2. The fixture for machining a round cross-section shaft with a chamfered edge according to claim 1, characterized in that, The angle between the inclined clamping surface (101) and the vertical clamping surface (102) is 45 degrees.

3. The fixture for machining a round cross-section shaft with a chamfered edge according to claim 1, characterized in that, The pressure plate (200) is provided with a through hole (210), and the clamping seat (100) is provided with a threaded hole (110). The screw (310) passes through the through hole (210) and is threadedly connected to the threaded hole (110). A nut (320) is provided at the end of the screw (310) facing away from the threaded hole (110). The nut (320) abuts against the side wall of the pressure plate (200) facing away from the threaded hole (110).

4. The fixture for machining a round cross-section shaft with a chamfered edge according to any one of claims 1 to 3, characterized in that, The clamping base (100) includes: The base plate (120) has an inclined clamping surface (101) at one end; The vertical plate (130) is fixedly connected at its bottom end to the middle of the base plate (120), and the side of the vertical plate (130) facing the inclined clamping surface (101) is the vertical clamping surface (102).

5. The fixture for machining a round cross-section shaft with a chamfered edge according to claim 4, characterized in that, The base plate (120) has a protrusion (121) at one end, and the protrusion (121) has an inclined clamping surface (101).

6. The fixture for machining a round cross-section shaft with a chamfered edge according to claim 4, characterized in that, The lower side wall of the base plate (120) is provided with a positioning key (122).

7. The fixture for machining a round cross-section shaft with a chamfered edge according to claim 4, characterized in that, The base plate (120) has multiple mounting holes (123).

8. The fixture for machining a round cross-section shaft with a chamfered edge according to claim 4, characterized in that, The clamping base (100) also includes: A stiffening plate (140) is provided on one side of the vertical plate (130) facing away from the inclined clamping surface (101) and is fixedly connected to the bottom plate (120) and the vertical plate (130).

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