Cutting mechanism for radial groove in metal rod

Abstract

The utility model discloses a cutting mechanism for a radial groove on a metal rod, the metal rod is fixedly arranged at the axis of a clamping jig, the cutting mechanism comprises a slip ring, a cutter box and a cover ring, the slip ring is sleeved on the periphery of the clamping jig in a sliding manner, the cutter box is arranged at one end part of the slip ring in a sliding manner, the cover ring is sleeved on the periphery of the slip ring, the cover ring is hinged with the cutter box, and a cutting edge is arranged at the end part, facing the metal rod, of the cutter box. The inclined plane is arranged on the cover ring capable of rotating relative to the metal rod, the cutter box is hinged to the inclined plane, and the sliding way capable of guiding the translation track of the cutter box is arranged on the sliding ring synchronously rotating with the cover ring, so that radial thrust applied to the metal rod by external force in the cutting process can be relieved, and the purpose of reducing radial deformation of the metal rod is achieved; and the planeness of the metal rod after the cutting process is improved, and the cutting yield is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of machining, especially to the cutting mechanism of radial slot on metal rod. BACKGROUND

[0002] Metal thin rod is mostly used on the components with self-rebound function, such as elastic connecting rod inside or elastic piece, in order to position, sometimes need to cut out the clamping groove on the outer wall of metal thin rod. In actual production, due to the ratio of the length and diameter of metal rod is too large, the problem of metal rod bending deformation is easily appeared in the cutting process, which leads to the shape deviation of clamping groove, and the subsequent metal rod needs to be corrected for flatness, and the production time is long. SUMMARY

[0003] In view of the above problems in the prior art, the cutting mechanism of radial slot on metal rod is provided, the inclined surface is arranged on the cover ring which can rotate relative to the metal rod, the cutter box is hinged on the inclined surface, and the sliding way which can guide the translation trajectory of the cutter box is arranged on the sliding ring which rotates synchronously with the cover ring, so that the radial thrust of external force applied on the metal rod in the cutting process can be slowed down, the purpose of reducing the radial deformation of the metal rod is achieved, the cutting precision is improved, the flatness of the metal rod after the cutting process is improved, and the cutting yield is improved.

[0004] To solve the above technical problems, the utility model takes a technical scheme as follows:

[0005] The cutting mechanism of radial slot on metal rod, the metal rod is arranged on a clamping jig, wherein:

[0006] The clamping jig is of annular structure, and the metal rod is detachably fixed at the axis thereof, and one end of the metal rod extends to the outside of the clamping jig and is clamped and fixed by another jig;

[0007] The cutting mechanism comprises a sliding ring which is slidably arranged on the outer wall of the clamping jig, one end of the sliding ring is in transmission connection with a driving device and can rotate relative to the clamping jig under the driving of the driving device, a radially extending cutter box is embedded in one end of the sliding ring, a cutting edge is formed on the end of the cutter box facing the end of the metal rod, the other end of the cutter box is in transmission connection with a cover ring which is arranged around the sliding ring, the cover ring is in transmission connection with the sliding ring and can slide along the axial direction under the action of external force, so as to push the cutter box to slide along the radial direction of the sliding ring and approach or move away from the metal rod.

[0008] As a further elaboration of the above technical scheme:

[0009] In the above technical scheme, the inner wall of the cover ring facing the cutter box is an inclined surface, a first rotary part is arranged on the inclined surface, a connecting rod is hinged on the first rotary part, and the other end of the connecting rod is hinged with the cutter box.

[0010] In the above technical solution, the cutter box is embedded with a cutter body, one end of the cutter body penetrates through the cutter box and extends to the outside of the cutter box, and more than one cutting edge is arranged on the cutter body.

[0011] In the above technical solution, the end of the sliding ring is provided with a sliding channel which is adapted to the cutter box and extends radially.

[0012] In the above technical solution, the outer wall of the sliding ring and the inner wall of the cover ring are both formed with a plurality of matched synchronous structures, and the sliding ring is provided with a radially extending limiting protrusion on the axial side of the structures.

[0013] Compared with the prior art, the utility model has the beneficial effects that: by setting the slope on the cover ring which can rotate relative to the metal rod, hinging the cutter box on the slope, and setting the sliding channel on the sliding ring which rotates synchronously with the cover ring and can guide the translation trajectory of the cutter box, the radial thrust of the external force applied on the metal rod in the cutting process can be slowed down, so that the purpose of reducing the radial deformation of the metal rod is achieved, the cutting precision is improved, the flatness of the metal rod after the cutting process is improved, and the cutting yield is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the sectional view structure schematic diagram of this embodiment;

[0015] Figure 2 is the top view structure schematic diagram of this embodiment.

[0016] In the figure: 10, metal rod; 20, clamping fixture; 30, sliding ring; 31, sliding channel; 32, limiting protrusion; 1, synchronous structure; 40, cutter box; 50, cutting edge; 51, cutter body; 60, cover ring; 61, slope; 62, first rotary part; 63, connecting rod. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings.

[0018] The embodiments described with reference to the drawings are exemplary and are intended to be used for explaining the present application and cannot be understood as a limitation of the present application. In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature with respect to the second feature can include the direct contact of the first and second features, or it can include the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature with respect to the second feature include the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature with respect to the second feature include the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0019] As Figures 1-2 shown, the cutting mechanism of the radial groove on the metal rod, the metal rod 10 is installed on a clamping jig 20; wherein:

[0020] The clamping jig 20 is a ring structure and the metal rod 10 is detachably fixed at the center thereof, one end of the metal rod 10 extends to the outside of the clamping jig 20 and is clamped and fixed by another jig;

[0021] The cutting mechanism includes a slip ring 30 that is slidably sleeved on the outer wall of the clamping fixture 20. One end of the slip ring 30 is connected to the drive device and can rotate relative to the clamping fixture 20 under its drive. A radially extending tool box 40 is embedded in one end of the slip ring 30. The end of the tool box 40 facing the metal rod 10 forms a cutting edge 50. The other end is connected to a cover ring 60 sleeved around the slip ring 30. The cover ring 60 is connected to the slip ring 30 and can slide along its axial direction under the action of external force to push the tool box 40 to slide radially on the slip ring 30 closer to or away from the metal rod 10.

[0022] Specifically, the inner wall of the cover ring 60 facing the knife box 40 is an inclined surface 61. A first rotating component 62 is provided on the inclined surface 61. A connecting rod 63 is hinged on the first rotating component 62. The other end of the connecting rod 63 is hinged to the knife box 40.

[0023] Specifically, a blade body 51 is embedded in the blade box 40. One end of the blade body 51 passes through the blade box 40 and extends to its outer side, and one or more cutting edges 50 are arranged on it. In this embodiment, the end of the blade body 51 is provided with multiple arcs to form multiple cutting edges 51, and multiple positioning grooves can be simultaneously formed on the metal rod 10.

[0024] Furthermore, the end of the slip ring 30 is provided with a slide 31 that is adapted to the knife box 40 and extends radially.

[0025] Furthermore, a plurality of matching synchronization structures 1 are formed on the outer wall of the slip ring 30 and the inner wall of the cover ring 60, and a radially extending limiting protrusion 32 is provided on one axial side of the plurality of synchronization structures 1 on the slip ring 30.

[0026] In this embodiment, the inclined surface 61 makes the inner wall of the cover ring 60 form a structure that is thin at the end and thick in the middle. The synchronous structure 1 consists of several protrusions that extend axially and are arranged circumferentially on the outer wall of the slip ring 30 and slots arranged on the inner wall of the cover ring 60. The limiting protrusion 32 is provided at the end of the protrusion near the knife box 40.

[0027] like Figure 1 As shown, during operation, a metal rod 10 is first clamped and fixed in place by clamping fixture 20 and another fixture (not shown). Then, slip ring 30, cover ring 60 and tool box 40 are installed in sequence, and the tool body 51 with cutting edge 50 is fixed in the tool box 40. After completion, the drive device (not shown) is started to drive slip ring 30 to rotate. Slip ring 30 drives cover ring 60 and tool box 40 to rotate synchronously. External force (not shown, which can be a cylinder or a manually controlled push mechanism) drives cover ring 60 to slide axially on slip ring 30. Inclined surface 61 is inclined close to slip ring 30 and pushes tool box 40 to slide on slide rail 31 through connecting rod 63, so that cutting edge 50 moves toward metal rod 10 for cutting. During the movement of cover ring, limiting protrusion 32 can limit the maximum axial displacement of cover ring 60.

[0028] The present application can slow down the radial thrust applied to the metal rod 10 during the cutting process by setting the inclined surface 61 on the cover ring 60 which can rotate relative to the metal rod 10, hinging the cutter box 40 on the inclined surface 61, and setting the slide 31 which can guide the translation trajectory of the cutter box 40 on the slide ring 30 which rotates synchronously with the cover ring 60, so as to achieve the purpose of reducing the radial deformation of the metal rod 10, improving the cutting accuracy and the flatness of the metal rod 10 after the cutting process, and improving the cutting yield.

[0029] The above is not any limitation on the technical range of the present application, and any modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still belong to the range of the technical solutions of the present application.

Claims

1. A cutting mechanism for radial grooves on a metal rod, the metal rod being mounted on a clamping fixture; characterized in that: the clamping fixture is of a ring structure and the metal rod is detachably fixed at the axial center thereof, one end of the metal rod extending to the outside of the clamping fixture and being clamped and fixed by another fixture; the cutting mechanism comprises a sliding ring slidingly mounted on the outer wall of the clamping fixture, one end of the sliding ring being in driving connection with a driving device and being able to rotate relative to the clamping fixture under the driving of the driving device; a radially extending cutter box is embedded at one end of the sliding ring, the cutter box forming a cutting edge towards the end of the metal rod, the other end of the cutter box being in driving connection with a cover ring mounted on the periphery of the sliding ring, the cover ring being in driving connection with the sliding ring and being able to slide along the axial direction thereof under the action of an external force to push the cutter box to slide along the radial direction of the sliding ring to approach or move away from the metal rod. The inner wall of the cover ring towards the cutter box is a slope, a first rotary member is arranged on the slope, a connecting rod is hingedly connected on the first rotary member, and the other end of the connecting rod is hingedly connected with the cutter box. A cutter body is embedded in the cutter box, one end of the cutter body extending to the outside of the cutter box and being provided with more than one cutting edge.

2. The mechanism of claim 1 wherein, The end of the sliding ring is provided with a sliding channel adapted to the cutter box and extending along the radial direction.

3. The mechanism of claim 1 wherein, The outer wall of the sliding ring and the inner wall of the cover ring are both provided with a plurality of matched synchronous structures, and a radially extending limiting protrusion is arranged on the sliding ring beside the axial direction of the structures.

4. The mechanism of claim 1 wherein, ​ 5. A mechanism for cutting a radial groove in a metal shaft according to any one of claims 1-4, characterized in that ​

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