CN217122487U

CN217122487U - Clamping tool for drilling of round anchor

Info

Publication number: CN217122487U
Application number: CN202220163781.6U
Authority: CN
Inventors: 李亚光; 孙长江
Original assignee: Henan Traffic Prestress Co ltd
Current assignee: Henan Traffic Prestress Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-08-05
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to a centre gripping frock for drilling of round anchor, comprises a workbench, the workstation on be provided with the slide rail, be provided with the backup pad on the slide rail, be provided with the three-jaw (holding) chuck in the backup pad, the three-jaw (holding) chuck include clamping jaw, adjusting nut and chuck base, chuck base on and be provided with the pivot between the backup pad, the bottom surface of chuck base on offer by distribute first blind hole, first spout, second blind hole and second spout in proper order and constitute be the circular shape spacing card slot group, spacing card slot group and workstation between be provided with the spring cylinder. Through the circular shape spacing card slot group that is that comprises first blind hole, first spout, second blind hole and the second spout that distributes in proper order, indicate the rotational position of three-jaw (holding) chuck, the utility model discloses adjust, convenient to use has extensive market prospect.

Description

Clamping tool for drilling of round anchor

Technical Field

The utility model relates to a drilling centre gripping field, concretely relates to centre gripping frock that is used for drilling of round anchor.

Background

The round anchor plate is a common anchor, is in a circular plate shape, and is provided with a plurality of equidistant through holes for steel bars to pass through on the end surface, wherein the through holes comprise an outer ring through hole and an inner ring through hole; the round anchor plate is mainly applied to the building fields of bridges, roads, dams and the like, the requirement on the round anchor plate is high, and the requirement on the precision of the equal division holes in the round anchor plate is high for ensuring the stable use of the round anchor plate.

Drilling processing methods such as round anchor plate on the market, usually all be the last back that finishes with the semi-manufactured goods centre gripping of fixture who utilizes the drilling machine, the device that is used for drilling of reuse drilling machine drills, round anchor clamping device adopts the three-jaw chuck usually, but finish the spot facing work on the round anchor plate and need carry out translation and rotation to the three-jaw chuck usually, at rotatory in-process, adopt manual rotatory combination protractor to fix a position then drill processing again a plurality of holes mostly among the prior art, it is not light to consume the manpower and efficiency is extremely low like this, machining efficiency has been influenced.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides a can indicate rotatory centre gripping frock that is used for drilling of circle anchor of predetermineeing the position for overcome defect among the prior art.

The utility model adopts the technical proposal that: the utility model provides a centre gripping frock for drilling of round anchor, includes the workstation, the workstation on be provided with the slide rail, be provided with the backup pad on the slide rail, be provided with three-jaw (holding) chuck in the backup pad, three-jaw (holding) chuck include clamping jaw, adjusting nut and chuck base, chuck base on and be provided with the pivot between the backup pad, the bottom surface of chuck base on offer by distribute first blind hole, first spout, second blind hole and the second spout in proper order and constitute be circular shape spacing draw-in groove group, spacing draw-in groove group and workstation between be provided with the spring cylinder.

Preferably, the number of the slide rails is two, the two slide rails are distributed on two sides of the three-jaw chuck, and a limiting slide block is arranged between each slide rail and the supporting plate.

Preferably, the number of the first blind holes, the number of the first sliding grooves, the number of the second blind holes and the number of the second sliding grooves are all three, the three first blind holes, the three first sliding grooves, the three second blind holes and the three second sliding grooves are all uniformly distributed on the outer side of the circle center of the limiting clamping groove group in a star shape, and the circle center of the limiting clamping groove group is located on the central axis of the rotating shaft.

Preferably, the cylinder body of the spring cylinder is fixedly arranged on the support plate, a ball is arranged at the outer side end of the extension rod of the spring cylinder, the ball is of a spherical structure capable of rotating around the center of the ball, and the ball is movably connected with the limiting clamping groove group.

Preferably, the depth of the first sliding groove becomes shallow gradually along the direction from the first blind hole to the second blind hole, and the depth of the second sliding groove becomes shallow gradually along the direction from the second blind hole to the first blind hole.

Preferably, the supporting plate between the two sliding rails is provided with a threaded lead screw, the threaded lead screws on the two sides of the supporting plate are equally divided into two parts which are respectively provided with a limiting bearing, the limiting bearings and the workbench are fixed through bearing connecting rods, the number of the limiting bearings is two, and one of the limiting bearings is provided with a hand wheel on one side far away from the supporting plate.

The utility model discloses beneficial effect: first, the utility model discloses a being the circular shape spacing card slot group that comprises first blind hole, first spout, second blind hole and the second spout that distributes in proper order, indicateing the rotational position of three-jaw (holding) chuck, be convenient for treat the round anchor semi-manufactured goods of drilling and punch the operation.

Secondly, two slide rails between the backup pad on be provided with the screw lead screw, screw lead screw and backup pad threaded connection equally divide on the screw lead screw of backup pad both sides and do not be provided with spacing bearing, spacing bearing passes through the bearing connecting rod with the workstation and fixes, the quantity of spacing bearing adopts two, one of them spacing bearing is provided with the hand wheel on one side of keeping away from the backup pad. The supporting plate is driven by the operating hand wheel to move conveniently.

Finally, the outside of spring cylinder extension bar serve and seted up first ball mounting groove, the ball gland of first ball mounting groove one side has seted up second ball mounting groove, the ball is installed in first ball mounting groove and second ball mounting groove. The friction force of the extension rod of the spring cylinder during moving is reduced.

The utility model has the advantages of simple structure, convenient operation, design benefit has improved work efficiency greatly, has fine social and economic benefits, is the product of easily using widely.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the spring cylinder of the present invention.

Fig. 3 is a bottom view of the three-jaw chuck of the present invention.

Fig. 4 is a bottom view of the three-jaw chuck of the present invention.

Detailed Description

As shown in fig. 1, 2, 3, and 4, a clamping tool for drilling a round anchor comprises a workbench 1, wherein a slide rail 2 is arranged on the workbench 1, a support plate 3 is arranged on the slide rail 2, a three-jaw chuck 4 is arranged on the support plate 3, the three-jaw chuck 4 comprises a clamping jaw, an adjusting nut, and a chuck base, a rotating shaft 5 is arranged on the chuck base and between the support plate 3, the bottom end of the rotating shaft 5 is fixedly connected with the support plate 3, the top end of the rotating shaft 5 is connected with the three-jaw chuck 4 through a bearing, a circular limiting clamping groove group consisting of a first blind hole 6, a first sliding groove 7, a second blind hole 8, and a second sliding groove 9 which are distributed in sequence is arranged on the bottom surface of the chuck base, and a spring cylinder 10 is arranged between the limiting clamping groove group and the workbench 1. The number of the slide rails 2 is two, the two slide rails 2 are distributed on two sides of the three-jaw chuck 4, and a limiting slide block 11 is arranged between each slide rail 2 and the supporting plate 3. The two slide rails 2 between be provided with screw lead screw 13 on the backup pad 3, screw lead screw 13 and 3 threaded connection of backup pad, equally divide on the screw lead screw 13 of backup pad 3 both sides and do not be provided with spacing bearing 14, spacing bearing 14 and workstation 1 are fixed through bearing connecting rod 15, the quantity of spacing bearing 14 adopts two, one of them spacing bearing 14 is provided with hand wheel 16 on the one side of keeping away from backup pad 3.

The number of the first blind holes 6, the number of the first sliding grooves 7, the number of the second blind holes 8 and the number of the second sliding grooves 9 are one, two or three, the plurality of first blind holes 6, the plurality of first sliding grooves 7, the plurality of second blind holes 8 and the plurality of second sliding grooves 9 are uniformly distributed outside the circle center of the limiting clamping groove group in a star shape, and the circle center of the limiting clamping groove group is located on the central axis of the rotating shaft 5. The radian of the first sliding chute 7 is equal to that of the second sliding chute 9, so that the two-hole, four-hole or six-hole tool round anchor is convenient to produce.

The cylinder body of the spring cylinder 10 is fixedly arranged on the supporting plate 3, the outer side end of an extension rod of the spring cylinder 10 is provided with a ball 12, the ball 12 adopts a spherical structure capable of rotating around the center thereof, and the ball 12 is movably connected with the limiting clamping groove group. The outside of spring cylinder 10 extension bar serve and seted up first ball mounting groove 18, the cross-section of first ball mounting groove 18 adopts semi-circular arc-shaped structure, the outside of spring cylinder 10 extension bar serve and be provided with ball gland 17 ball gland and adopt the cask column structure that the open end is located the below, ball gland 17 with spring cylinder 10 extension bar threaded connection, second ball mounting groove 19 has been seted up on the ball gland 17 of first ball mounting groove 18 one side, second ball mounting groove 19 adopts the trough-like structure of seting up to the top surface of ball gland 17 seal end along the bottom surface of ball gland 17 seal end, ball 12 is installed in first ball mounting groove 18 and second ball mounting groove 19. The inner diameter of the second ball mounting groove 19 is gradually reduced along a direction from the bottom surface of the closed end of the ball cover 17 to the top surface of the closed end of the ball cover 17.

The depth of the first sliding chute 7 gradually becomes shallow along the direction from the first blind hole 6 to a second blind hole 8 adjacent to one side of the first blind hole 6, and the depth of one end, connected with the first blind hole 6, of the first sliding chute 7 is equal to the depth of the first blind hole 6; the depth of the second sliding groove 9 becomes gradually shallower along the direction from the second blind hole 8 to the first blind hole 6 adjacent to one side of the second blind hole 8. The depth of one end of the second sliding chute 9 connected with the second blind hole 8 is equal to the depth of the second blind hole 8.

The use method of the product is as follows: as shown in fig. 1, 2 and 3, firstly, a semi-finished product of a round anchor to be drilled is mounted on a three-jaw chuck 4, the hand wheel 16 is rotated by rotating the hand wheel 16, the threaded screw 13 is driven by the hand wheel 16 to rotate, and then the preset position of the support plate 3 on the slide rail 2 is adjusted, at this time, the round anchor to be drilled is located at the first position to be drilled, after corresponding equipment is operated to drill the first position to be drilled, the three-jaw chuck 4 is rotated clockwise or counterclockwise, in the process, the ball 12 on the end of the spring cylinder 10 slides from the first blind hole 6 to the first chute 7, in the sliding process of the first chute 7, the spring cylinder 10 is gradually compressed, when the ball 12 on the end of the spring cylinder 10 slides to the second blind hole 8, the spring cylinder 10 resets, the worker rotates the three-jaw chuck 4 reversely, and determines that the ball 12 on the end of the spring cylinder 10 is located in the second blind hole 8, the two-hole circular anchor drilling tool is characterized in that the two-hole circular anchor drilling tool is a first indexing preset position, then corresponding equipment is operated to drill the first indexing preset drilling position, after drilling is finished, the three-jaw chuck 4 continues to rotate clockwise or anticlockwise, in the process, the ball 12 on the end portion of the spring cylinder 10 slides to the first blind hole 6 from the second blind hole 8 through the second sliding groove 9, the product is reset to complete drilling of the two-hole circular anchor, the two-hole circular anchor which is drilled is finished is taken down from the three-jaw chuck 4, and another semi-finished circular anchor to be drilled is replaced to perform drilling operation.

Through this embodiment, through the first blind hole 6 that is the circular shape that comprises of distributing in proper order, first spout 7, second blind hole 8 and second spout 9 spacing card slot group, indicate the rotational position of three-jaw (holding) chuck 4, be convenient for treat the round anchor semi-manufactured goods of driling and punch the operation.

The utility model discloses a satisfy the centre gripping frock that is used for the drilling of round anchor in drilling centre gripping field worker needs, make the utility model discloses extensive market prospect has.

Claims

1. The utility model provides a centre gripping frock for drilling of round anchor which characterized in that: including workstation (1), workstation (1) on be provided with slide rail (2), be provided with backup pad (3) on slide rail (2), be provided with three-jaw (holding) chuck (4) on backup pad (3), three-jaw (holding) chuck (4) including clamping jaw, adjusting nut and chuck base, chuck base on and be provided with pivot (5) between backup pad (3), the bottom surface of chuck base on offer by distribute first blind hole (6), first spout (7), second blind hole (8) and second spout (9) in proper order and constitute be circular shape spacing card slot group, spacing card slot group and workstation (1) between be provided with spring cylinder (10).

2. The clamping tool for drilling the round anchor according to claim 1, wherein the clamping tool comprises: the number of the slide rails (2) is two, the two slide rails (2) are distributed on two sides of the three-jaw chuck (4), and a limiting slide block (11) is arranged between each slide rail (2) and the supporting plate (3).

3. The clamping tool for drilling the round anchor according to claim 1, wherein the clamping tool comprises: the number of the first blind holes (6), the number of the first sliding grooves (7), the number of the second blind holes (8) and the number of the second sliding grooves (9) are three, the three first blind holes (6), the three first sliding grooves (7), the three second blind holes (8) and the three second sliding grooves (9) are uniformly distributed on the outer side of the circle center of the limiting clamping groove group in a star shape, and the circle center of the limiting clamping groove group is located on the central axis of the rotating shaft (5).

4. The clamping tool for drilling the round anchor according to claim 1, wherein the clamping tool comprises: the spring cylinder is characterized in that a cylinder body of the spring cylinder (10) is fixedly arranged on the supporting plate (3), a ball (12) is arranged at the outer side end of an extension rod of the spring cylinder (10), the ball (12) is of a spherical structure capable of rotating around the center of the ball, and the ball (12) is movably connected with the limiting clamping groove group.

5. The clamping tool for drilling the round anchor according to claim 1, wherein the clamping tool comprises: the depth of the first sliding groove (7) becomes shallow gradually along the direction from the first blind hole (6) to the second blind hole (8), and the depth of the second sliding groove (9) becomes shallow gradually along the direction from the second blind hole (8) to the first blind hole (6).

6. The clamping tool for drilling the round anchor according to claim 2, wherein the clamping tool comprises: the novel automatic bearing device is characterized in that a threaded lead screw (13) is arranged on the supporting plate (3) between the two sliding rails (2), the threaded lead screws (13) on the two sides of the supporting plate (3) are equally divided into two parts, a limiting bearing (14) is respectively arranged on the threaded lead screws (13), the limiting bearing (14) and the workbench (1) are fixed through a bearing connecting rod (15), the number of the limiting bearings (14) is two, and a hand wheel (16) is arranged on one side, away from the supporting plate (3), of one limiting bearing (14).