Threaded blade convenient to fix

Abstract

A threaded blade convenient to fix comprises a threaded blade body, a mounting hole is formed in the threaded blade body, a tensioning ring is arranged at the bottom of the mounting hole, the tensioning ring is of a variable-diameter structure, the diameter of the top of the tensioning ring is larger than that of the bottom of the tensioning ring, a plurality of limiting grooves are formed in the top of the threaded blade body and arranged in the circumferential direction of the outer side of the mounting hole, and the limiting grooves are matched with the mounting hole. A pin is further included, the pin comprises a pin head and a pin rod, the pin head is fixedly arranged at the top of the pin rod, a plurality of limiting blocks matched with the limiting grooves are arranged at the bottom of the pin head, and the diameter of the pin rod is equal to that of the mounting hole. The device is simple and convenient to operate and short in consumed time.

Description

TECHNICAL FIELD

[0001] The utility model relates to thread blade technical field, concretely relates to a thread blade convenient to fix. BACKGROUND

[0002] In the processing of numerical control lathe, thread blade as an important cutting tool is widely used in the processing and repair work of thread. When thread blade works, it needs to be fixed on the blade fixing seat of numerical control lathe, and the existing fixing mode generally adopts bolt fixing, places thread blade in the profiling groove of blade fixing seat, and then threadedly connects the bolt through the mounting hole of thread blade and the bolt hole of blade fixing seat, so as to fix thread blade by tightening the bolt. The surface of blade fixing seat facing thread blade is provided with a profiling groove matched with the shape of thread blade, the blade is fixed on the machine tool, and the profiling groove limits the rotation of thread blade. In the processing, the workpiece rotates, and the blade performs cutting groove action.

[0003] In the prior art, when installing thread blade, the bolt needs to be inserted into the bolt hole of blade fixing seat first, and then the bolt is rotated and tightened. The bolt needs to be rotated for several turns to be tightened, which is time-consuming and repetitive, and the excessive tightening of the bolt may damage the thread in the bolt hole, resulting in unstable installation of the blade.

[0004] In view of the above problems, the utility model provides a thread blade capable of being quickly and simply fixed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a thread blade convenient to fix, which is simple to operate and short in time consumption.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A thread blade convenient to fix, comprising a thread blade, an installation hole is formed in the thread blade, a tension ring is arranged at the bottom of the installation hole, the tension ring is of a variable-diameter structure, the diameter of the top of the tension ring is larger than that of the bottom, a plurality of limiting grooves are arranged at the top of the thread blade, the limiting grooves are arranged in a circumferential direction along the outer side of the installation hole, a pin is further included, the pin comprises a pin head and a pin rod, the pin head is fixedly arranged at the top of the pin rod, a plurality of limiting blocks matched with the limiting grooves are arranged at the bottom of the pin head, and the diameter of the pin rod is equal to that of the installation hole.

[0008] As a preferred technical scheme, an external thread is arranged on the outer side of the tension ring.

[0009] As a preferred technical scheme, the tension ring is composed of a plurality of arc-shaped tension blocks, and gaps are arranged between adjacent tension blocks.

[0010] As a preferred technical scheme, the inner diameter of the top of the expansion ring is equal to the inner diameter of the mounting hole.

[0011] In some possible embodiments, the pin rod length needs to be such that the pin rod top can penetrate the expansion ring bottom.

[0012] As a preferred technical scheme, the limiting groove comprises a socket and a clamping groove perpendicular to the socket axis, the clamping groove and the socket are communicated, the limiting block comprises a plug strip and a clamping strip connected to the bottom of the plug strip, and the size of the socket needs to be such that the plug strip and the clamping strip can pass through smoothly.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、 in the utility model, through the cooperation of the expansion ring on the thread blade and the pin, first, the expansion ring is inserted into the bolt hole on the blade fixing seat, then the pin is inserted, and a certain angle is rotated, so that the limiting block at the bottom of the pin head matches and clamps with the limiting groove at the top of the thread blade, the fixation of the thread blade can be completed, the bolt does not need to be repeatedly rotated for fixation, the installation is simple and convenient and time-consuming is short.

[0015] 2、 in the utility model, through the axial force generated by inserting the pin into the expansion ring, the expansion ring expands outward along the radial direction and is attached to the bolt hole of the blade fixing seat, meanwhile, the outer thread outside the expansion sleeve matches with the inner thread of the bolt hole, the up and down movement of the thread blade can be limited, and the stability of the fixation of the thread blade is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The specific implementation of the utility model will be further described in combination with the drawings:

[0017] Figure 1 It is a schematic view of the thread blade structure of the utility model;

[0018] Figure 2 It is a side view of the thread blade of the utility model;

[0019] Figure 3 It is a schematic view of the pin structure of the utility model;

[0020] Figure 4 It is a side view of the pin of the utility model;

[0021] Among them, the reference signs are as follows:

[0022] 1-thread blade, 2-mounting hole, 3-expansion ring, 4-limiting groove, 5-pin head, 6-limiting block, 61-plug strip, 62-clamping strip, 7-pin rod. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts are within the scope of protection of the present application.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts are within the scope of protection of the present application. It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0025] In the description of the present application, it should be noted that, if the orientation or position relationship indicated by the terms "center", "upper", "lower", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship when the product of the application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connect" appear, they should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or 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, or it can be the communication between two elements inside. For the ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Embodiment

[0027] As Figures 1-4 shown, a screw blade convenient to fix, comprising a screw blade 1 and a pin.

[0028] The screw blade 1 is provided with a mounting hole 2, and the bottom of the mounting hole 2 is provided with a tension ring 3. The tension ring 3 is a variable diameter structure, the diameter of the top of the tension ring 3 is larger than the diameter of the bottom, the top of the screw blade 1 is provided with a plurality of limiting grooves 4, and the plurality of limiting grooves 4 are arranged circumferentially along the outside of the mounting hole 2; the pin comprises a pin head 5 and a pin rod 7, the pin head 5 is fixedly arranged at the top of the pin rod 7, the bottom of the pin head 5 is provided with a plurality of limiting blocks 6 matched with the limiting grooves 4, and the diameter of the pin rod 7 is equal to the diameter of the mounting hole 2.

[0029] It is worth mentioning that when installing, the expansion ring 3 is inserted into the bolt hole of the blade fixing seat, the large-small variable diameter structure of the expansion ring 3 plays a guiding role, which facilitates the smooth insertion of the expansion ring 3 into the bolt hole, the threaded blade 1 is fixed on the blade fixing seat through the pin, the pin rod 7 passes through the mounting hole 2 on the threaded blade 1 and the expansion ring 3 in sequence, the expansion ring 3 is expanded, the outer surface of the expansion ring 3 is tightly attached to the surface of the bolt hole, the threaded blade 1 is fixed on the blade fixing seat, the limiting block 6 is inserted into the limiting groove 4, the up-down movement of the pin can be limited, the pin is prevented from loosening and moving upward, the expansion ring 3 of the threaded blade 1 is prevented from not being tightly contacted with the inner wall of the bolt hole, and the threaded blade 1 is prevented from being loose.

[0030] In some possible embodiments, the outer side of the expansion ring 3 is provided with external threads, when the expansion ring 3 is radially expanded and outwardly expanded, the external threads of the expansion ring 3 can match the internal threads of the bolt hole, the up-down movement of the threaded blade 1 is limited, and the connection stability of the threaded blade 1 is improved.

[0031] In some possible embodiments, the expansion ring 3 is composed of a plurality of arc-shaped expansion blocks, gaps are arranged between adjacent expansion blocks, so that when the expansion blocks are outwardly expanded under the axial force of the pin, the plurality of expansion blocks can be more closely attached to the bolt hole of the blade fixing seat, the contact area with the bolt hole is increased, and the stability of the fixation is improved.

[0032] In some possible embodiments, the inner diameter of the top of the expansion ring 3 is equal to the inner diameter of the mounting hole 2, so that when the pin is inserted into the mounting hole 2 and the expansion ring 3, the pin will not be jammed and can smoothly pass through the connection between the mounting hole 2 and the expansion ring 3.

[0033] In some possible embodiments, the length of the pin rod 7 needs to be such that the top of the pin rod 7 can penetrate the bottom of the expansion ring 3.

[0034] In some possible embodiments, the limiting groove 4 includes a plug hole and a clamping groove perpendicular to the axis of the plug hole, and the clamping groove and the plug hole are communicated. The limiting block 6 includes a plug strip 61 and a clamping strip 62 connected to the bottom of the plug strip 61. The limiting block 6 is inserted into the plug hole, the limiting block 6 is rotated by a certain angle following the pin head 5, and the plug strip 61 at the bottom of the limiting block 6 can be screwed into the clamping groove. A plurality of circumferentially uniformly arranged limiting grooves 4 and limiting blocks 6 are uniformly arranged to achieve stable connection and limit the up-down movement of the pin.

[0035] To achieve this purpose, the arrangement direction of the clamping groove is towards the circumferential direction, the size of the plug hole needs to be such that the plug strip 61 and the clamping strip 62 can smoothly pass through, and then the clamping strip 62 is rotated along the circumferential direction by rotating the pin head 5 and clamped into the clamping groove. Since the application scenario of the utility model is blade fixation, the structure of the workpiece to be processed is rotated, therefore, after installation is completed, the relative position of the pin head 5 and the threaded blade 1 is kept stable.

[0036] Furthermore, it should be understood that although the specification is described in terms of embodiments, the specification has a sententious writing style and not every implementation only contains one independent technical solution, the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand. Thus, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description. The scope of the present disclosure is defined by the appended claims.

Claims

1. A thread insert for easy fixing, comprising a thread insert (1) having a mounting hole (2) formed therein, characterized in that, The bottom of the mounting hole (2) is provided with a tension ring (3), the tension ring (3) is a variable diameter structure, the top diameter of the tension ring (3) is larger than the bottom diameter, the top of the threaded blade (1) is provided with a plurality of limiting grooves (4), the plurality of limiting grooves (4) are arranged circumferentially along the outside of the mounting hole (2), further comprising a pin, the pin comprises a pin head (5) and a pin shaft (7), the pin head (5) is fixedly arranged on the top of the pin shaft (7), the bottom of the pin head (5) is provided with a plurality of limiting blocks (6) matched with the limiting grooves (4), and the diameter of the pin shaft (7) is equal to the diameter of the mounting hole (2).

2. A thread insert according to claim 1, wherein The outside of the tension ring (3) is provided with an external thread.

3. The thread insert of claim 1, wherein, The tension ring (3) is composed of a plurality of arc-shaped tension blocks, and gaps are arranged between adjacent tension blocks.

4. The thread insert of claim 1, wherein, The inner diameter of the top of the tension ring (3) is equal to the inner diameter of the mounting hole (2).

5. The thread insert of claim 1, wherein, The length of the pin shaft (7) needs to be such that the top of the pin shaft (7) can penetrate the bottom of the tension ring (3).

6. The thread insert of claim 1, wherein, The limiting groove (4) comprises a insertion hole and a clamping groove perpendicular to the axis of the insertion hole, the clamping groove and the insertion hole are communicated, the limiting block (6) comprises an insertion strip (61) and a clamping strip (62) connected to the bottom of the insertion strip (61), and the size of the insertion hole needs to be such that the insertion strip (61) and the clamping strip (62) can pass through smoothly.

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