CN220944155U - Drill clamp - Google Patents

Abstract

The utility model discloses a drill bit clamp which is arranged on a drill frame and used for clamping a drill bit, and comprises a mounting seat, a driving assembly, a plurality of first rolling elements, wherein through holes for the drill bit to pass through are formed in the mounting seat, the plurality of first rolling elements are arranged in a circumferential array relative to the center of the through holes and are rotatably arranged on the mounting seat, and the driving assembly is used for driving the plurality of first rolling elements to approach or separate from the through holes so that the plurality of first rolling elements can clamp or loosen the drill bit. According to the utility model, the drill bits with different specifications can be clamped through operating the driving assembly, the operation is simple, the use is convenient, the applicability is strong, other components are not required to be disassembled and assembled, the complicated operation steps are simplified, the labor intensity of staff is reduced, and the drilling efficiency is improved; the drill bit can be stably clamped through the plurality of first rolling elements, drilling precision and machining quality are guaranteed, influences on rotation of the drill bit can be reduced, and the drill bit is reliable to use.

Description

Drill clamp

Technical Field

The utility model relates to the technical field of drill clamps, in particular to a drill clamp.

Background

A drill bit holder is a tool used to hold a drill bit during a drilling process. The main function of the drill clamp is to ensure the positioning precision of the drill so as to realize efficient and high-precision drilling processing.

The applicant has searched and obtained the following prior art, in particular, the patent with publication No. CN217142442U discloses a modular deep hole drill jig, comprising a base, a key slot arranged on the base along the length direction, and at least 2 sliding fixing units slidably engaged with the key slot; the sliding fixing unit comprises a sliding block in sliding fit with the key groove, a V-shaped groove arranged in the sliding block along the direction parallel to the key groove, two mounting holes and two locking holes arranged on two sides of the V-shaped groove, a pressing plate arranged above the V-shaped groove, and bolts penetrating through two ends of the pressing plate and accommodated in the two locking holes; the two mounting holes are located at one end of the V-shaped groove, and the two locking holes are located at the other end of the V-shaped groove. The modular deep hole drill bit clamp realizes the modularization of the clamp, can adapt to the processing requirements of deep hole drill rods with different lengths by adjusting the position of the sliding fixing unit, has wide application range, and can ensure that the deep hole drill rods cannot deviate in the processing process.

From the above patent, it can be seen that this modular deep hole drill bit anchor clamps has realized anchor clamps modularization, and through adjusting the position of slip fixed unit, can adapt to the processing demand of different length deep hole drilling rods, and application scope is wide, can ensure in the course of working that the deep hole drilling rod can not take place the skew. But in actual use, because the deep hole drill bit needs to rotate when drilling, place the deep hole drill bit behind the slip fixed unit slider and clamp plate can support tightly with the drill bit to influence the drill bit rotation, and when changing the drill bit of different specifications, need repeated dismouting clamp plate, so that the operation steps of changing the drill bit are loaded down with trivial details, have increased staff's intensity of labour, have reduced drilling efficiency.

Disclosure of utility model

The utility model mainly aims to provide a drill clamp, which aims to solve the problems that when the existing drill clamp is used for replacing drill bits with different specifications, the pressing plate needs to be repeatedly disassembled and assembled, so that the operation steps are complicated, the labor intensity of workers is increased, the drilling efficiency is reduced, and the rotation of the drill bit is easily influenced.

In order to achieve the above purpose, the utility model provides a drill bit fixture which is arranged on a drill frame and used for clamping a drill bit, and the drill bit fixture comprises a mounting seat, a driving assembly and a plurality of first rolling elements, wherein through holes for the drill bit to pass through are formed in the mounting seat, the plurality of first rolling elements are arranged in a circumferential array relative to the center of the through holes and are rotatably arranged on the mounting seat, and the driving assembly is used for driving the plurality of first rolling elements to be close to or far from the through holes so that the plurality of first rolling elements can clamp or loosen the drill bit.

Preferably, a plurality of first spacing holes have been seted up on the mount pad, drive assembly includes regulating plate and a plurality of connecting rod, the regulating plate rotationally install to on the mount pad, a plurality of spacing grooves have been seted up on the regulating plate, a plurality of first spacing holes with the spacing groove is relative the center of through-hole is circumference array arrangement, and a plurality of the connecting rod respectively one-to-one pass first rolling member first spacing hole with spacing groove and be connected with the retaining member.

Preferably, the bottom surface of regulating plate is provided with the connecting plate, a plurality of second spacing holes have been seted up on the connecting plate, the quantity of second spacing hole with the quantity of first spacing hole is unanimous and one-to-one, arbitrary the connecting rod stretches out to the one end outside the spacing groove passes the second spacing hole and installs the second rolling member.

Preferably, the first limiting holes and the second limiting holes are waist-shaped holes, and the first limiting holes and the second limiting holes extend along a direction away from the through holes.

Preferably, an L-shaped vertical plate used for being abutted to the mounting seat is formed on the outer wall of the adjusting plate, a limiting groove for the edge of the outer wall of the mounting seat to extend in is formed by surrounding the L-shaped vertical plate and the outer wall of the adjusting plate, and a lock column is detachably mounted on the L-shaped vertical plate.

Preferably, a through groove is formed in the mounting seat, a boss is formed on the adjusting plate at a position corresponding to the through groove, and the boss extends into the through groove and is in sliding contact fit with the through groove.

Preferably, a scale is arranged at the notch of the through groove, and a mark structure pointing to the scale is formed on the boss.

The beneficial effects are that:

1. According to the drill clamp, drill bits with different specifications can be clamped through the operation driving assembly, the operation is simple, the use is convenient, the applicability is high, other components are not required to be disassembled and assembled, the operation steps are simplified, the labor intensity of workers is reduced, and the drilling efficiency is improved.

2. Because a plurality of first rolling elements are rotatably installed on the mounting seat for a plurality of first rolling elements can rotate in step with the drill bit, not only can stabilize the centre gripping to the drill bit from this, guarantee drilling precision and processingquality, can also reduce the influence to drill bit pivoted, use reliably.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is an exploded view of a drill bit holder according to one embodiment of the present utility model;

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

In the figure: 1-a mounting base; 2-a first rolling element; 3-through holes; 4-a first limiting hole; 5-adjusting plates; 6-connecting rods; 7-a limit groove; 8-L-shaped vertical plates; 9-locking a column; 10-connecting plates; 11-a second limiting hole; 12-a second rolling element; 13-through grooves; 14-boss; 15-scale; 16-logo structure.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Example 1:

The utility model provides a drill bit clamp.

In an embodiment of the utility model, a drill bit fixture is arranged on a drill frame and used for clamping a drill bit, and comprises a mounting seat 1, a driving assembly, a plurality of first rolling elements 2, wherein through holes 3 for the drill bit to pass through are formed in the mounting seat 1, the plurality of first rolling elements 2 are arranged in a circumferential array relative to the center of the through holes 3 and are rotatably arranged on the mounting seat 1, and the driving assembly is used for driving the plurality of first rolling elements 2 to be close to or far from the through holes 3 so that the plurality of first rolling elements 2 can clamp or unclamp the drill bit.

Specifically, as shown in fig. 1 to 2, in the drill bit fixture disclosed by the utility model, after a drill bit is mounted on a drill frame, as the through hole 3 is formed in the mounting seat 1, the drill bit can pass through the through hole 3 and drill a workpiece, the mounting seat 1 is further provided with the plurality of first rolling elements 2, the plurality of first rolling elements 2 are arranged in a circumferential array relative to the center of the through hole 3, and the plurality of first rolling elements 2 can move towards the center of the through hole 3 under the action of the driving assembly, so that the drill bit can be abutted against the outer wall of the drill bit and clamped, the stability of the drill bit in the drilling process is effectively improved, the drill bit is prevented from shaking, and the service life of the drill bit is prolonged. Further, because a plurality of first rolling elements 2 are rotatably installed on the installation seat 1, a plurality of first rolling elements 2 are all preferably rollers in the prior art, through setting up antifriction bearing in the inside of roller for the drill bit can drive a plurality of first rolling elements 2 and rotate relative installation seat 1 in step when rotating, and then not only can stabilize the centre gripping to the drill bit, guarantee drilling precision and processingquality, can also reduce the influence to drill bit pivoted, use reliably. It can be understood that when the drill bit specification that needs the centre gripping changes, drive a plurality of first rolling members 2 through drive assembly and remove towards the direction of keeping away from the center of through-hole 3, can loosen the centre gripping to the drill bit from this, after the drill bit that needs to be changed is installed, drive a plurality of first rolling members 2 again through drive assembly and remove and with the drill bit butt towards the direction that is close to the center of through-hole 3, can realize the centre gripping to the drill bit from this again, easy operation, flexible in use, the suitability is strong, and just can carry out the centre gripping to the drill bit of different specifications through operating drive assembly, and need not dismouting other parts, the operation steps are loaded down with trivial details has been simplified, staff's intensity of labour has been alleviateed, drilling efficiency has been improved.

It should be noted that the driving assembly may be a plurality of studs, that is, a plurality of first rolling elements 2 are detachably mounted on the mounting seat 1 through the studs, and a worker adjusts the mounting position of the studs relative to the mounting seat 1 to enable the corresponding first rolling elements 2 to be close to or far from the through holes 3, so as to clamp or unclamp the drill bit; meanwhile, the driving assembly can also be a three-jaw chuck in the prior art, and any jaw of the three-jaw chuck is rotatably provided with the first rolling element 2 respectively, so that the drill bit can be clamped or unclamped.

Compared with the prior art, the drill bit clamp can clamp drill bits of different specifications through operating the driving assembly, is simple to operate, convenient to use and high in applicability, does not need to disassemble and assemble other parts, simplifies the operation steps, reduces the labor intensity of staff, and improves the drilling efficiency; because a plurality of first rolling elements 2 rotationally install on mount pad 1 for a plurality of first rolling elements 2 can carry out synchronous rotation with the drill bit, not only can stabilize the centre gripping to the drill bit, guarantee drilling precision and processingquality, can also reduce the influence to drill bit pivoted, use reliably.

In an embodiment, a plurality of first limiting holes 4 are formed in the mounting seat 1, the driving assembly comprises an adjusting plate 5 and a plurality of connecting rods 6, the adjusting plate 5 is rotatably mounted on the mounting seat 1, a plurality of limiting grooves 7 are formed in the adjusting plate 5, the plurality of first limiting holes 4 and the limiting grooves 7 are arranged in a circumferential array relative to the center of the through hole 3, and the plurality of connecting rods 6 respectively penetrate through the first rolling piece 2, the first limiting holes 4 and the limiting grooves 7 in a one-to-one correspondence manner and are connected with the locking piece.

It can be understood that, as shown in fig. 1 and 2, when the drill bit needs to be clamped or loosened, the operator rotates the adjusting plate 5 anticlockwise or clockwise relative to the mounting seat 1, and at this time, the plurality of connecting rods 6 respectively move in the corresponding limiting grooves 7, meanwhile, as the plurality of connecting rods 6 respectively pass through the first rolling element 2, the first limiting hole 4 and the limiting groove 7 in a one-to-one correspondence and are connected with the locking member, the connecting rods 6 can simultaneously move in the first limiting hole 4 and synchronously drive the first rolling element 2 to move relative to the mounting seat 1, so that the clamping or loosening of the drill bit by the plurality of first rolling elements 2 is realized, and the structural design is ingenious and reasonable.

In an embodiment, a connecting plate 10 is disposed on the bottom surface of the adjusting plate 5, a plurality of second limiting holes 11 are formed in the connecting plate 10, the number of the second limiting holes 11 is consistent with that of the first limiting holes 4 and corresponds to that of the first limiting holes one by one, and one end of any connecting rod 6 extending out of the limiting groove 7 passes through the second limiting holes 11 and is provided with a second rolling member 12. Specifically, as shown in fig. 1, by arranging the connecting plate 10 on the bottom surface of the adjusting plate 5 and installing the plurality of second rolling elements 12 through the plurality of connecting rods 6, the plurality of second rolling elements 12 can also be selected as rollers in the prior art, thereby being capable of increasing the clamping area of the drill bit and further improving the rotation stability of the drill bit.

In an embodiment, as shown in fig. 1 and 2, the first limiting holes 4 and the second limiting holes 11 are waist-shaped holes, and the first limiting holes 4 and the second limiting holes 11 extend along a direction away from the through hole 3. It can be appreciated that when the adjusting plate 5 rotates, the plurality of connecting rods 6 respectively move in the corresponding limiting grooves 7, and as the plurality of first limiting holes 4 and the plurality of second limiting holes 11 are waist-shaped holes, the connecting rods 6 can synchronously move in the first limiting holes 4 and the second limiting holes 11, and the plurality of first limiting holes 4 and the plurality of second limiting holes 11 extend along the direction away from the through holes 3, so that the connecting rods 6 can drive the first rolling members 2 and the second rolling members 12 to approach or separate from the through holes 3 and clamp or tighten or loosen the drill bit.

In an embodiment, as shown in fig. 1 and 2, an L-shaped vertical plate 8 for abutting against the mounting seat 1 is formed on the outer wall of the adjusting plate 5, a limit groove for extending into the outer wall edge of the mounting seat 1 is surrounded by the L-shaped vertical plate 8 and the outer wall of the adjusting plate 5, and a lock post 9 is detachably mounted on the L-shaped vertical plate 8. It can be understood that after the drill bit is clamped by the first rolling members 2 and the second rolling members 12, the locking column 9 is screwed down to enable the L-shaped vertical plate 8 to be abutted against the edge of the outer wall of the mounting seat 1, so that the edge of the outer wall of the mounting seat 1 can be clamped to the limiting groove, limiting fixation of the adjusting plate 5 is achieved, the adjusting plate 5 is prevented from rotating randomly in the drilling process, the first rolling members 2 and the second rolling members 12 can be abutted against the drill bit all the time, and stability of clamping the drill bit is guaranteed. Further, the lock cylinder 9 can be selected as a wrench with a stud in the prior art, so that the lock cylinder 9 can be screwed conveniently, and other tools and the like are not needed, so that the use is convenient.

In an embodiment, the mounting base 1 is provided with a through groove 13, a boss 14 is formed on the adjusting plate 5 corresponding to the position of the through groove 13, and the boss 14 extends into the through groove 13 and is in sliding contact fit with the through groove 13. Specifically, as shown in fig. 1 and 2, since the boss 14 extends into the through groove 13 and is in sliding contact engagement with the through groove 13, the boss 14 can only move in the through groove 13, thereby being capable of functioning as a circumferential limit for the adjusting plate 5.

In one embodiment, as shown in fig. 1 and 2, a scale 15 is provided at the notch of the through slot 13, and a marking structure 16 pointing to the scale 15 is formed on the boss 14. It will be appreciated that when the adjustment plate 5 is rotated to clamp the drill bit by the plurality of first rolling members 2 and the plurality of second rolling members 12, a worker can know the diameter of the drill bit by looking at the scale marks pointed by the marking structure 16, and the drill bit clamp of the present utility model can clamp the minimum diameter and the maximum diameter of the drill bit, so that the drill bit clamp is convenient to use.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (7)

1. The utility model provides a drill bit anchor clamps, sets up on the drilling carriage and is used for the centre gripping drill bit, its characterized in that includes mount pad (1), drive assembly and a plurality of first rolling member (2) offer on mount pad (1) and supply through-hole (3) that the drill bit passed, a plurality of first rolling member (2) are relative the center of through-hole (3) is circumference array arrangement and rotationally install in on mount pad (1), just drive assembly is used for driving a plurality of first rolling member (2) are close to or keep away from through-hole (3), so that a plurality of first rolling member (2) can centre gripping or loosen the drill bit.

2. The drill clamp according to claim 1, wherein the mounting base (1) is provided with a plurality of first limiting holes (4), the driving assembly comprises an adjusting plate (5) and a plurality of connecting rods (6), the adjusting plate (5) is rotatably mounted on the mounting base (1), the adjusting plate (5) is provided with a plurality of limiting grooves (7), the plurality of first limiting holes (4) and the limiting grooves (7) are arranged in a circumferential array relative to the center of the through hole (3), and the plurality of connecting rods (6) respectively penetrate through the first rolling piece (2), the first limiting holes (4) and the limiting grooves (7) in a one-to-one correspondence manner and are connected with locking pieces.

3. The drill clamp according to claim 2, wherein a connecting plate (10) is arranged on the bottom surface of the adjusting plate (5), a plurality of second limiting holes (11) are formed in the connecting plate (10), the number of the second limiting holes (11) is consistent with that of the first limiting holes (4) and corresponds to that of the first limiting holes one by one, and one end of any connecting rod (6) extending out of the limiting groove (7) penetrates through the second limiting holes (11) and is provided with a second rolling element (12).

4. A drill clamp according to claim 3, characterized in that the first and second limiting holes (4, 11) are kidney-shaped holes, and the first and second limiting holes (4, 11) extend in a direction away from the through hole (3).

5. The drill clamp according to claim 4, wherein an L-shaped vertical plate (8) for abutting against the mounting seat (1) is formed on the outer wall of the adjusting plate (5), a limit groove for the outer wall edge of the mounting seat (1) to extend in is formed by the L-shaped vertical plate (8) and the outer wall of the adjusting plate (5), and a lock cylinder (9) is detachably mounted on the L-shaped vertical plate (8).

6. A drill clamp according to any one of claims 2-5, characterized in that the mounting seat (1) is provided with a through groove (13), a boss (14) is formed on the adjusting plate (5) at a position corresponding to the through groove (13), and the boss (14) extends into the through groove (13) and is in sliding contact fit with the through groove (13).

7. A drill jig according to claim 6, characterized in that the notch of the through slot (13) is provided with a scale (15), and the boss (14) is formed with a marking structure (16) directed to the scale (15).