CN211991237U - Adjustable reamer convenient for clamping - Google Patents

Abstract

The utility model relates to a reamer has the firm effect of centre gripping. The utility model discloses a make things convenient for adjustable reamer of clamping, including the handle of a knife, the one end of handle of a knife is provided with the tool bit, and the other end is provided with the clamping part that supplies the holder centre gripping, the bottom an organic whole of clamping part is provided with the annular spacing ring of circle, the spacing ring is with the central line coincidence of clamping part, sets up the spacing groove that supplies spacing ring laminating card to go into on the holder. By means of the cooperation of spacing ring and clamping part, the steadiness of reamer centre gripping has been improved.

Description

Adjustable reamer convenient for clamping

Technical Field

The utility model relates to a reamer, more specifically say, it relates to a make things convenient for adjustable reamer of clamping.

Background

The reamer is a rotary tool for cutting metal on the surface of a machined hole, the reamed hole can obtain accurate size and shape, the reamer is mainly used for improving the machining precision of the hole and reducing the roughness of the surface of the hole, the reamer is a tool for finish machining and semi-finish machining, and the machining allowance is generally small.

The patent of publication number CN202984824U, published japanese 20130612 discloses a reamer, which comprises a holder and a reamer head integrated with the holder, the reamer head has an end side, the reamer head comprises a front angle, a back angle and a blade width, at least three teeth of the reamer head are provided, the front angle is provided along the circumference where the end side is located, and the front angle is 0 °; the rear angle and the circumference where the end side is located form an angle of 24 degrees; the width of the blade is 0.2 mm; and the coaxiality tolerance between the excircle on the end side and the excircle where the cutter handle is positioned is 0.005.

The reamer of the above patent has rake angles that do not participate in cutting when the reamer head is in contact with the workpiece; when the cutter is not stably clamped and the machine tool is large in jumping, hole expanding treatment is carried out, and phenomena such as machining of a taper hole and generation of burrs in the hole are avoided. But still can have the unstable problem of centre gripping, the impact force is big when reamer and work piece contact, and the reamer loss is serious, leads to reamer life weak point.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a make things convenient for adjustable reamer of clamping has the firm effect of centre gripping.

In order to achieve the technical purpose, the utility model provides a following technical scheme: the utility model provides a make things convenient for adjustable reamer of clamping, includes the handle of a knife, the one end of handle of a knife is provided with the tool bit, and the other end is provided with the clamping part that supplies the holder centre gripping, the bottom an organic whole of clamping part is provided with annular spacing ring of circle, the spacing ring coincides with the central line of clamping part, sets up the spacing groove that supplies spacing ring laminating card to go into on the holder.

Through adopting above-mentioned technical scheme, behind the clamping part of reamer was cliied to the holder, the spacing inslot of holder can be gone into to the spacing ring, and when the reamer was contradicted the work piece, the work piece just can't promote the reamer and slide along reamer length direction to the reaction force of reamer, has improved the steadiness of centre gripping.

Preferably, the radius of the clamping portion is larger than that of the tool shank, and both ends of the clamping portion in the length direction are frustum-shaped.

Through adopting above-mentioned technical scheme, get rid of the end angle on the reamer, when avoiding the reamer to knock into the injury by accident, the end angle is damaged, can't be firmly by the centre gripping, has improved structural rationality.

Preferably, a plurality of limiting balls are arranged outside the limiting ring, and a groove for the limiting balls to be attached and inserted is formed in the limiting groove on the inner side of the clamping piece.

Through adopting above-mentioned technical scheme, after pushing the spacing ring into the spacing groove of holder, spacing ball inserts the spacing inslot, and spacing ball can't rotate relative spacing groove, avoids reamer working process relative holder to rotate, leads to partial blade multidimension wearing and tearing, has improved the steadiness of reamer during operation.

Preferably, a plurality of accommodating grooves are concentrically formed in the limiting ring, each limiting ball slides in one accommodating groove, and the limiting balls are fixedly connected with the bottoms of the accommodating grooves through springs.

Through adopting above-mentioned technical scheme, when pushing the holder with the clamping part, shrink behind the spacing ball conflict holder inner wall in the spacing ring, avoid spacing ring and spacing ball to occupy too much space, when spacing ball was located the spacing inslot, spacing ball popped out under the promotion of spring, had reduced the displacement of holder, had reduced the processing degree of difficulty of holder.

To sum up, the utility model discloses following effect has been gained:

1. by means of the matching of the limiting ring and the clamping part, the clamping stability of the reamer is improved;

2. by means of the cooperation of spacing ball and gib block, prevent that the reamer from rotating relative holder.

Drawings

FIG. 1 is a schematic view for showing the overall structure in the present embodiment;

FIG. 2 is a schematic diagram illustrating a specific structure of the stop collar in this embodiment;

fig. 3 is a schematic diagram for showing the matching relationship between the stop collar and the stop ball in the embodiment.

In the figure, 1, a knife handle; 2. a cutter head; 3. a clamping portion; 4. a limiting ring; 5. a limiting ball; 6. a containing groove; 7. a spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b): the utility model provides a make things convenient for adjustable reamer of clamping, as shown in figure 1, includes handle of a knife 1, and the one end of handle of a knife 1 is provided with tool bit 2, and the other end is provided with the clamping part 3 that supplies the holder centre gripping, and the bottom an organic whole of clamping part 3 is provided with annular spacing ring 4 of circle, and spacing ring 4 and the central line coincidence of clamping part 3 offer the spacing groove that supplies 4 laminating cards of spacing ring to go into on with reamer complex holder. The clamping piece is a universal clamping piece in the prior art, no special customization is needed, only an annular limiting groove needs to be formed in the clamping piece, and the reamer is an object protected by the technical scheme, so that the structure of the clamping piece is not specifically illustrated in the attached drawings and the description, but the technical scheme is not hindered for being realized by a person skilled in the art.

After the clamping part clamps the clamping part 3 of the reamer, the limiting ring 4 can be clamped into the limiting groove of the clamping part, when the reamer props against a workpiece, the reaction force of the workpiece on the reamer can not push the reamer to slide along the length direction of the reamer, and the clamping stability is improved.

As shown in fig. 1, the radius of the clamping portion 3 is larger than that of the shank 1, and both ends of the clamping portion 3 in the longitudinal direction are tapered. The end angle on the reamer is removed, the damage of the end angle when the reamer is accidentally knocked is avoided, the reamer cannot be clamped stably, and the structural rationality is improved.

As shown in fig. 2, four limiting balls 5 are arranged outside the limiting ring 4, and a groove for the limiting balls 5 to fit and insert is formed in the limiting groove on the inner side of the clamping piece. After the limiting ring 4 is pushed into the limiting groove of the clamping piece, the limiting ball 5 is inserted into the limiting groove, the limiting ball 5 cannot rotate relative to the limiting groove, the rotation of the clamping piece in the working process of the reamer relative to the clamping piece is avoided, the abrasion of part of blades is caused in a multi-degree mode, and the stability of the reamer in the working process is improved.

As shown in fig. 2 and 3, four receiving grooves 6 are concentrically formed in the limiting ring 4, each limiting ball 5 slides in one receiving groove 6, and the limiting balls 5 are fixedly connected with the bottoms of the receiving grooves 6 through springs 7. When pushing into the holder with clamping part 3, shrink behind the holder inner wall is contradicted to spacing ball 5 in spacing ring 4, avoid spacing ring 4 and spacing ball 5 to occupy too much space, when spacing ball 5 was located the spacing inslot, spacing ball 5 popped out under the promotion of spring 7, and spacing ball 5 receive and releases freely, does not influence the working method of holder, avoids.

As shown in fig. 3, the limiting ring 4 includes an upper ring body 41 and a lower ring body 42, the upper ring body 41 and the clamping portion 3 are integrally disposed, the upper ring body 41 and the lower ring body 42 are folded to form an accommodating groove 6, the upper ring body 41 and the lower ring body 42 are connected by a thread, and the width of the opening of the accommodating groove 6 is smaller than the diameter of the limiting ball 5. The spring 7 and the limiting ball 5 are firstly placed in one half of the containing groove 6 of the upper ring body 41, then the lower ring body 42 is screwed on the upper ring body 41, the limiting ball 5 cannot leave the containing groove 6, and the phenomenon that the limiting ball 5 falls off in the reamer storing process is avoided.

Claims (5)

1. The utility model provides a make things convenient for adjustable reamer of clamping which characterized in that: including handle of a knife (1), the one end of handle of a knife (1) is provided with tool bit (2), and the other end is provided with clamping part (3) that supply the holder centre gripping, the bottom an organic whole of clamping part (3) is provided with annular spacing ring (4), spacing ring (4) and the central line coincidence of clamping part (3) are provided with the holder that is used for pressing from both sides tight reamer on the lathe, set up the confession on the holder spacing groove that spacing ring (4) laminating card was gone into.

2. The adjustable reamer convenient to clamp of claim 1, wherein: the radius of clamping part (3) is greater than the radius of handle of a knife (1), the length direction both ends of clamping part (3) set up to the frustum type.

3. The adjustable reamer convenient to clamp as claimed in claim 2, wherein: a plurality of limiting balls (5) are arranged outside the limiting ring (4), and a groove for the limiting balls (5) to be attached and inserted is formed in the limiting groove on the inner side of the clamping piece.

4. The adjustable reamer convenient to clamp of claim 3, wherein: a plurality of containing grooves (6) are concentrically formed in the limiting ring (4), each limiting ball (5) slides in one containing groove (6), and the limiting balls (5) are fixedly connected with the bottoms of the containing grooves (6) through springs (7).

5. The adjustable reamer convenient to clamp of claim 4, wherein: the limiting ring (4) comprises an upper ring body (41) and a lower ring body (42), the upper ring body (41) and the clamping part (3) are integrally arranged, the upper ring body (41) and the lower ring body (42) are folded to form a containing groove (6), the upper ring body (41) is in threaded connection with the lower ring body (42), and the width of a groove opening of the containing groove (6) is smaller than the diameter of the limiting ball (5).

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