CN222199628U - Elastic knife handle seat and knife - Google Patents

Abstract

The utility model relates to an elastic tool handle seat, comprising a seat body, wherein the seat body is provided with two fixing holes, a clamping hole is opened in the middle of the seat body, a fixing block is arranged around the inner wall of the clamping hole, and the inner wall of the clamping hole is also provided with two elastic devices facing each other, and a circle of convex edges is arranged along the edge of the clamping hole. The second embodiment of the utility model relates to a tool, and a limiting structure is arranged at the handle of the tool. The cross-section of the limiting structure is in the shape of a "concave" character and is arranged in a ring at the handle of the tool. Compared with the prior art, the elastic tool handle seat of the utility model realizes stable clamping and adaptive adjustment of the tool through the coordinated action of the fixing block and the elastic device, and the tool change is simple and easy to operate.

Description

Elastic knife handle seat and knife

Technical Field

The utility model relates to the field of cutter clamping devices, in particular to an elastic cutter handle seat and a cutter.

Background

In many industrial applications, especially in the context of precision assembly, quality inspection, and experimental analysis, it is critical to secure clamping of tools, or samples. Traditional clamping device often structure complicacy, complex operation, and the centre gripping effect is unstable, is difficult to satisfy high accuracy, efficient centre gripping demand.

The conventional clamping manner usually depends on bolts, clamps or other mechanical locking mechanisms, and although the clamping manner can realize clamping to a certain extent, the conventional clamping manner often has the problems of difficult adjustment, uneven clamping force, easy damage to the clamped object and the like. Particularly, in the case of frequent replacement of the clamped object, the operation efficiency of the conventional clamping mode is very low.

Disclosure of utility model

In view of the foregoing, it is desirable to provide an elastic tool holder for solving at least one of the foregoing problems, including a holder body, the holder body is provided with two fixing holes, a clamping hole is formed in the middle of the holder body, a fixing block is circumferentially disposed on an inner wall of the clamping hole, two elastic devices facing each other are disposed on an inner wall of the clamping hole, and a rim is disposed on an edge of the clamping hole.

Preferably, the elastic device comprises a spring, a ball and a screw, the spring is sleeved on the screw, the ball is arranged on the spring, the screw is fixedly installed on the seat body, and the ball faces the inner side of the seat body.

In another embodiment of the utility model, the handle part of the cutter is provided with a limit structure, the cross section of the limit structure is concave, and the limit structure is annularly arranged at the handle part of the cutter, when the cutter is inserted into the clamping hole, the lower convex edge of the limiting structure is abutted against the fixed block, the ball is embedded into the groove part of the limiting structure, and the upper convex edge of the limiting structure covers the clamping hole.

Preferably, the shank of the tool matches the shape and size of the clamping hole.

Preferably, anti-skid patterns are arranged between the lower convex edge of the limiting structure and the fixed block.

Compared with the prior art, the elastic knife handle base realizes stable clamping and self-adaptive adjustment of a knife through the synergistic effect of the fixed block and the elastic device, and the knife changing is simple and easy to operate.

Drawings

1. The tool comprises an elastic tool handle seat, 11, a seat body, 12, a fixing hole, 13, a clamping hole, 14, a fixing block, 15, an elastic device, 151, a spring, 152, balls, 153, a screw nail, 16, a convex edge, 2, a tool, 21, a limiting structure, 211, a lower convex edge, 212, a groove, 213 and an upper convex edge.

FIG. 1 is a schematic view of an elastic shank holder and a tool according to an embodiment of the present utility model.

FIG. 2 is a schematic view of an elastic holder according to an embodiment of the present utility model.

Fig. 3 is a schematic view of the structure of a cutter according to an embodiment of the present utility model.

FIG. 4 is a schematic cross-sectional view of an elastic shank holder and tool according to an embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the elastic shank holder and the tool according to the present utility model will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the terms "plurality" and "plurality" mean two or more, and the terms "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. refer to the orientation or positional relationship based on the drawings, and are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in this application can be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1 to 4, the elastic holder 1 according to the embodiment of the present utility model includes a holder 11, the holder 11 is provided with two fixing holes 12, a clamping hole 13 is provided in the middle of the holder 11, a fixing block 14 is provided around the inner wall of the clamping hole 13, two elastic devices 15 are provided on the inner wall of the clamping hole 13, and a rim 16 is provided along the rim of the clamping hole 13.

In the above embodiment, the two fixing holes 12 provided on the base 11 are used to fix the tool shank base on a machine tool or other processing equipment, so as to ensure the stability of the tool shank base during the working process. The clamping hole 13 in the middle of the seat body 11 is a core part of the elastic tool holder 1 and is used for clamping the tool holder of the tool 2. The fixed block 14 that the centre gripping hole 13 inner wall encircled and set up can provide certain clamping force, helps fixed cutter 2. And two elastic means 15 provided on the inner wall of the holding hole 13 at positions facing each other are members for realizing elastic holding. When the tool 2 is inserted into the clamping hole 13, the elastic means 15 is deformed by the extrusion of the tool 2. This deformation will create a reverse clamping force, firmly securing the tool 2 in the clamping hole 13. Since the elastic device 15 has certain elasticity, it can adapt to knife handles of different sizes, and wide applicability is realized. In addition, the round convex edge 16 along the edge of the clamping hole 13 not only enhances the structural strength of the clamping hole 13, but also can prevent the cutter 2 from sliding or falling off in the processing process to a certain extent, thereby improving the working safety. In summary, the elastic tool holder 1 according to the embodiment of the present utility model realizes stable clamping and adaptive adjustment of the tool 2 through the cooperation of the fixing block 14 and the elastic device 15, and improves the machining precision and the production efficiency.

Referring to fig. 1 to 4, in another embodiment, the elastic device 15 includes a spring 151, a ball 152 and a screw 153, the spring 151 is sleeved on the screw 153, the ball 152 is disposed on the spring 151, the screw 153 is fixedly mounted on the base 11, and the ball 152 faces the inner side of the base 11.

In the above embodiment, the screw 153 is mounted on the seat 11 as a fixing member, and the spring 151 is sleeved on the screw 153, which serves the main function of providing elasticity and restoring force. When the tool 2 is inserted into the clamping hole 13, the shank of the tool 2 presses the balls 152, and the balls 152 compress the spring 151. Due to the elasticity of the spring 151, it generates a corresponding opposing force according to the size and pressing force of the tool 2, and this opposing force is transmitted to the shank of the tool 2 through the ball 152, thereby achieving a stable clamping of the tool 2. The ball 152 can not only uniformly transfer the force of the spring 151 to the cutter 2 to prevent damage to the cutter 2 or influence on the clamping effect due to uneven force distribution, but also reduce friction to a certain extent due to the rolling characteristic of the ball 152, so that insertion and extraction of the cutter 2 are smoother.

Referring to fig. 1 to 4, in a second embodiment of the present utility model, a handle portion of the cutter 2 is provided with a limiting structure 21, the cross section of the limiting structure 21 is concave, and the limiting structure 21 is annularly disposed at the handle portion of the cutter 2, and the present utility model is characterized in that, when the cutter 2 is inserted into the clamping hole 13, a lower convex edge 211 of the limiting structure 21 abuts against the fixing block 14, the balls 152 are embedded into a groove 212 portion of the limiting structure 21, and an upper convex edge 213 of the limiting structure 21 covers the clamping hole 13.

In the above embodiment, when the cutter 2 is inserted into the clamping hole 13, the lower convex edge 211 of the limiting structure 21 is first abutted against the fixed block 14. The presence of the fixed block 14 provides an initial support and positioning of the tool 2, ensuring that the tool 2 is correctly centred in the clamping hole 13. At the same time, the contact of the lower flange 211 with the fixed block 14 also helps to prevent the tool 2 from being shaken or offset during clamping. With further insertion of the tool 2, the balls 152 are inserted into the recess 212 of the limiting structure 21. At this time, the balls 152 receive a pressing force from the tool shank, and a reverse clamping force is generated by the action of the springs 151. Because the balls 152 are embedded in the grooves 212, the clamping force can be more uniformly distributed on the tool shank, and the stability and reliability of clamping are improved. Finally, when the tool 2 is fully inserted into the clamping hole 13, the upper flange 213 of the limiting structure 21 will cover the edge of the clamping hole 13. In this way, the upper flange 213 of the limiting structure 21 and the edges of the clamping hole 13 together form a closed structure, which further enhances the stability of the tool 2 in the clamping hole 13. The design can not only prevent the cutter 2 from sliding or falling off in the processing process, but also improve the processing precision and the safety.

Referring to fig. 1 to 4, in another embodiment, the shank of the tool 2 is matched to the shape and size of the clamping hole 13.

In the above embodiment, this ensures that the contact surfaces of the tool 2 and the clamping hole 13 can be closely fitted when the two are inserted, reducing the backlash and instability factors. The tight fit helps to disperse the clamping force and avoid stress concentration, thereby improving the stability and reliability of clamping.

Referring to fig. 1 to 4, in another embodiment, an anti-skid pattern is provided between the lower flange 211 of the limiting structure 21 and the fixed block 14.

In the above embodiment, the presence of the anti-skid pattern increases the friction coefficient between the lower convex edge 211 and the fixing block 14.

The present utility model is not limited to the preferred embodiments, and the present utility model is described above in any way, but is not limited to the preferred embodiments, and any person skilled in the art will appreciate that the present utility model is not limited to the embodiments described above, while the above disclosure is directed to various equivalent embodiments, which are capable of being modified or altered in some ways, any simple modification, equivalent variations and alterations made to the above embodiments according to the technical principles of the present utility model will still fall within the scope of the technical aspects of the present utility model.

Claims (5)

1. The utility model provides an elasticity handle of a knife seat, its characterized in that, includes the pedestal, the pedestal is provided with two fixed orifices, the centre gripping hole has been seted up in the middle of the pedestal, the centre gripping hole inboard encircles and is provided with the fixed block, the centre gripping hole inboard still is provided with two position elastic device in face to face, the edge of centre gripping hole is provided with round chimb.

2. The flexible tool holder according to claim 1, wherein the flexible device comprises a spring, a ball and a screw, the spring is sleeved on the screw, the ball is arranged on the spring, the screw is fixedly arranged on the base, and the ball faces to the inner side of the base.

3. A cutter using the elastic cutter handle seat according to any one of claims 1-2, wherein a cutter handle part of the cutter is provided with a limiting structure, the cross section of the limiting structure is concave, and the limiting structure is annularly arranged at the cutter handle part of the cutter.

4. The tool according to claim 3, wherein the shank of the tool matches the shape and size of the clamping hole.

5. The tool according to claim 3, wherein anti-skid patterns are arranged between the lower convex edge of the limiting structure and the fixed block.