CN208033838U - A kind of simple chasing bar for large apertures tapping - Google Patents

Abstract

The utility model more particularly to a kind of simple chasing bar for large apertures tapping, including tapping handle, pedestal and the sliding block being slidably arranged on pedestal, the clamp device for positioning sliding block is provided on the pedestal, one end of the sliding block is fixed with positioning tube, the axis of the positioning tube is vertical with the glide direction of sliding block, the tapping handle includes the locating rod being slidably arranged in positioning tube, one end of the locating rod is fixed with screw tap casing, the mounting hole coordinated with the square tenon of screw tap is offered on the screw tap casing, the radial positioning device for positioning locating rod is provided on the positioning tube.Advantageous effect：The utility model can be to large apertures tapping, and simple in structure, assembly is easy, and swift to operate, cost is relatively low, and using flexible is applied widely；The utility model can carry out tapping to the hole in the hole and vertical plane in horizontal plane.

Description

A Simple Tapping Device for Large Hole Tapping

technical field

The utility model belongs to the technical field of tapping, in particular to a simple tapping device for tapping large holes.

Background technique

Tapping refers to screwing the tap into the bottom hole to be drilled with a certain torque to process the internal thread. Many mechanical processing enterprises do not have simple and easy-to-operate tapping devices for tapping large holes (diameter ≥ 40mm), which is laborious and time-consuming, and the power of machine tapping is insufficient, or forced tapping during machine tapping leads to large taps. Cracked teeth and broken taps are common conditions. At present, the tapping device can only be used for the tapping of the inner hole of a horizontal plane or the tapping of the vertical surface, and cannot be applied to the tapping of the hole in both cases at the same time. The applicable range is small and the cost is high.

Utility model content

In order to solve the problem in the prior art that there is no simple and easy-to-operate tapping device for tapping large holes, the utility model provides a simple tapping device for tapping large holes.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the utility model is as follows, a simple tapping device for large-scale hole tapping, comprising a tapping handle, a base and a slide block slidably arranged on the base, on the base A fastening device for positioning the slider is provided, one end of the slider is fixed with a positioning cylinder, the axis of the positioning cylinder is perpendicular to the sliding direction of the slider, and the tapping handle includes a positioning cylinder slidably arranged in the positioning cylinder. One end of the positioning rod is fixed with a tap sleeve, and the tap sleeve is provided with a mounting hole matched with the square tenon of the tap, and the positioning cylinder is provided with a radial positioning device for positioning the positioning rod.

Preferably, the slider slides longitudinally, and the base is provided with a slideway matched with the slider. Because the axis of the positioning cylinder is perpendicular to the sliding direction of the slider, the positioning rod is slidably set in the positioning cylinder, and the tap assembled in the tap sleeve on the positioning rod can tap the large hole in the vertical plane. The structure is simple and the function is reliable. Stable, easy to operate and low cost.

Preferably, the slider slides laterally, and the top end of the base is provided with a slide groove matched with the slider. Because the axis of the positioning cylinder is perpendicular to the sliding direction of the slider, the positioning rod is slidably arranged in the positioning cylinder, and the tap assembled in the tap casing on the positioning rod can tap the large hole in the horizontal plane. The tapping of the utility model The device can simultaneously tap large holes in the vertical plane and the horizontal plane, and has the advantages of simple structure, easy assembly, reliable and stable function, convenient operation and low cost.

As a preference, the fastening device includes fastening screws, several fastening threaded holes are provided on the slider, and several fastening threaded holes are arranged along the sliding direction of the slider, and the base is provided with fastening screws. Fastening countersunk holes for fastening threaded holes and fastening screws. After sliding the slider to determine the height of the tap casing or the distance that the tap casing moves back and forth, the slider is locked and positioned with a fastening screw, so that the structure is simple and stable, the operation is convenient, and the cost is low.

Preferably, the positioning device includes at least 2 sets of positioning screws axially distributed along the positioning cylinder, the number of each group is at least 2 and not on the same straight line, and the positioning end of the positioning screw passes through the gap between the positioning cylinder and the positioning rod. Surface contact. Tighten the positioning screw so that the positioning screw is in contact with the peripheral surface of the positioning rod. When the torque rod is turned to drive the positioning rod to rotate forward, the positioning screw and the inner wall of the positioning cylinder cooperate with the limit positioning rod to move radially. The setting of the positioning screw is convenient for the radial direction of the positioning rod. The fine adjustment of the displacement and the positioning structure are easy to operate and the cost is low.

Preferably, the end surface of the positioning screw is an arc surface matched with the positioning cylinder. The friction is reduced, the rotation of the positioning rod is facilitated, and the rotation efficiency of the positioning rod is improved.

Further, the other end of the positioning rod is vertically fixed with a torque rod, a level is provided on the surface of the torque rod, and a level bead is inside the level, and the level is parallel to the axis of the torque rod. The torque rod is convenient to rotate the positioning rod; the level assists the checking and positioning of the tap assembled in the tap sleeve when tapping. When the large hole to be tapped is in the horizontal plane, the level bead of the rotating torque rod is always in the center of the level, that is, the tap and the horizontal plane Vertical; when the large hole to be tapped is in the vertical plane, the level bead is in the center of the level gauge when the torque rod is horizontal, and the level bead is also in the center of the level gauge when the torque rod is rotated 90°, that is, the tap is perpendicular to the vertical plane; more intuitive and convenient The ground observation tap is perpendicular to the plane where the large hole to be tapped is located, so as to improve the tapping accuracy of the tapping device.

Further, the number of the installation holes is at least two, and several installation holes are coaxial and distributed in steps. Mounting holes of different sizes facilitate the assembly of different types of taps, which expands the scope of use of the tapping device, avoids frequent replacement of tap sleeves, makes use more convenient, saves resources and reduces costs.

Further, a mounting plate is fixed on the bottom of the base, and a number of countersink holes run through the periphery of the mounting plate. The mounting plate is fixed on the workbench by passing the screw through the counterbore hole, the fixing method is simple and reliable, and the cost is low.

Further, both sides of the base are provided with ribs for supporting the base, and the bottom ends of the ribs are fixedly connected with the mounting plate. The ribs prevent the base of the tapping device from shaking during use, enhance the stability of the base, and improve the tapping accuracy of the tapping device.

Beneficial effect:

The simple tapping device for large hole tapping of the utility model can tap large holes, has simple structure, easy assembly, quick operation, low cost, flexible use and wide application range; the utility model is used for large hole The simple tapping device for tapping can tap holes in the horizontal plane and holes in the vertical plane.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram when the large hole tapping in the vertical plane of the present utility model;

Fig. 2 is the explosion schematic diagram when the large hole tapping in the vertical plane of the present utility model;

Fig. 3 is the three-dimensional structure schematic diagram when tapping the large-scale hole in the horizontal plane of the present utility model;

Fig. 4 is the explosion schematic diagram when tapping the large-scale hole in the horizontal plane of the present utility model;

Among the figure 1, tapping handle, 11, torque rod, 12, tap casing, 121, mounting hole, 13, positioning rod, 2, base, 21, slideway, 22, chute, 23, fastening countersunk hole , 3, slider, 31, fastening threaded hole, 4, positioning cylinder, 5, fastening screw, 6, positioning screw, 7, level, 8, mounting plate, 9, rib.

Detailed ways

Example

As shown in Figures 1 to 4, a simple tapping device for tapping large holes includes a tapping handle 1, a base 2 and a slider 3 slidably arranged on the base 2, and the base 2 is provided with a A fastening device for positioning the slider 3, one end of the slider 3 is fixed with a positioning cylinder 4, the axis of the positioning cylinder 4 is perpendicular to the sliding direction of the slider 3, and the tapping handle 1 includes a torque rod 11, a tap Sleeve 12 and the positioning rod 13 that is slidingly arranged in the positioning cylinder 4, one end of the positioning rod 13 is vertically fixed on the torque rod 11, and the other end of the positioning rod 13 is fixedly connected with one end of the tap sleeve 12, so The other end of the tap sleeve 12 is provided with a mounting hole 121 that matches the square tenon of the tap. The center of the mounting hole 121 coincides with the axis of the positioning rod 13. The number of the mounting holes 121 is at least two, and several The mounting holes 121 are coaxial and distributed in steps, and the positioning cylinder 4 is provided with a radial positioning device for positioning the positioning rod 13 . In order to find the center conveniently and effectively during tapping, a level 7 is provided on the surface of the torque rod 11 , and a level bead is provided in the level 7 , and the level 7 is parallel to the axis of the torque rod 11 .

In order that the tapping device can be applied to both the tapping of large holes in the vertical plane and the tapping of large holes in the horizontal plane, the slider 3 slides longitudinally, and the base 2 is provided with a slideway 21 cooperating with the slider 3 , or the slider 3 slides laterally, and the top of the base 2 is provided with a chute 22 matched with the slider 3 . In order to improve the stability of the base, a mounting plate 8 is fixed on the bottom of the base 2, and a number of countersink holes are penetrated around the mounting plate 8, and ribs for supporting the base 2 are provided on both sides of the base 2 9. The bottom end of the rib plate 9 is fixedly connected with the mounting plate 8 .

The fastening device includes a fastening screw 5, and several fastening threaded holes 31 are provided on the slider 3, and some of the fastening threaded holes 31 are arranged along the sliding direction of the slider 3, and the base 2 is provided with There is a fastening counterbore 23 cooperating with the fastening threaded hole 31 and the fastening screw 5 . The positioning device includes at least 2 sets of positioning screws 6 axially distributed along the positioning cylinder 4, the number of each group is at least 2 and not on the same straight line, the positioning end of the positioning screw 6 passes through the positioning cylinder 4 and the positioning rod 13 in contact with the peripheral surface. In order to reduce the friction and facilitate the rotation of the positioning rod 13, the end face of the positioning screw 6 is an arc surface matched with the positioning cylinder 4, or balls are arranged on the contacting surfaces of the positioning screw 6 and the positioning cylinder 4 with the positioning rod 13.

It works as follows:

Tapping large vertical holes: Fix the mounting plate 8 on the workbench by passing the screw through the countersunk hole, then slide the slider 3 up and down in the slideway 21, and tighten the fastening screw 5 to fix the slider 3 on the slideway 21, then pass the positioning rod 13 of the tapping handle 1 through the positioning cylinder 4, and fit the square tenon of the tap into the corresponding installation hole 121. At this time, determine whether the tap is the same as the large hole in the vertical plane. Axis, first match the front end of the tap with the large hole, assist the rotation of the torque rod 11 to observe whether the level bead is in the center of the spirit level 7 when the torque rod 11 is horizontal, and whether the level bead is also in the center of the spirit level 7 when the torque rod 11 is rotated 90° , judge whether the tap is coaxial with the large hole in the vertical plane, if not, fine-tune it by moving the positioning rod 13, and when the position is confirmed, tighten the positioning screw 6 for positioning, that is, the positioning end of the positioning screw 6 and the positioning rod 13 The circumferential surface of the positioning cylinder 4 is in contact with and cooperates with the inner wall of the positioning cylinder 4, and the positioning rod 13 is radially positioned. At this time, the torque rod 11 can be rotated, and the torque rod 11 sequentially drives the positioning rod 13, the tap sleeve 12 and the tap without any scruples. When tapping with force, there is no need to consider the phenomenon that the tap is tilted and cannot be tapped or the tap is broken.

Large-scale hole tapping on the horizontal plane: According to the position of the large-scale hole in the horizontal plane, remove the rib plate 9 on any side, remove the side of the base plate 2 from the rib plate 9 to face the large-scale hole to be tapped, and pass the screw through the countersink hole Fix the mounting plate 8 on the workbench, slide the slider 3 back and forth in the chute 22, tighten the fastening screw 5 to fix the slider 3 at the proper position in the chute 22, and then position the tapping handle 1 The rod 13 passes through the positioning cylinder 4, and fits the square tenon of the tap into the corresponding installation hole 121. At this time, it is determined whether the tap is coaxial with the large hole in the horizontal plane, and the front end of the tap is matched with the large hole to assist the rotation. Torque rod 11 to observe whether the level bead is always in the center of the spirit level 7, and judge whether the tap is on the same axis as the large hole in the horizontal plane. If not, fine-tune it by moving the positioning rod 13. After the position is confirmed, tighten the positioning screw 6 for positioning , that is, the positioning end of the positioning screw 6 is in contact with the peripheral surface of the positioning rod 13 and cooperates with the inner wall of the positioning cylinder 4 to radially position the positioning rod 13. At this time, the torque rod 11 can be rotated, and the torque rod 11 drives the positioning rod in turn. 13. The tap casing 12 and the tap tap forcefully without any scruples, and there is no need to consider the occurrence of the phenomenon that the tap is tilted and cannot be tapped or the tap is broken.

Claims (10)

1. a kind of simple chasing bar for large apertures tapping, it is characterised in that：Including tapping handle (1), pedestal (2) and cunning The sliding block (3) being arranged on pedestal (2) is moved, the clamp device for positioning sliding block (3) is provided on the pedestal (2), it is described One end of sliding block (3) is fixed with positioning tube (4), and the axis of the positioning tube (4) is vertical with the glide direction of sliding block (3), described Tapping handle (1) includes the locating rod (13) being slidably arranged in positioning tube (4), and one end of the locating rod (13) is fixed with silk Taper bushing (12) offers the mounting hole (121) coordinated with the square tenon of screw tap, the positioning tube on the screw tap casing (12) (4) the radial positioning device for positioning locating rod (13) is provided on.

2. the simple chasing bar according to claim 1 for large apertures tapping, it is characterised in that：The sliding block (3) Longitudinal sliding motion offers the slideway (21) with sliding block (3) cooperation on the pedestal (2).

3. the simple chasing bar according to claim 1 for large apertures tapping, it is characterised in that：The sliding block (3) It slides laterally, the top of the pedestal (2) offers the sliding slot (22) with sliding block (3) cooperation.

4. the simple chasing bar according to claim 1,2 or 3 for large apertures tapping, it is characterised in that：It is described tight It is fixedly mounted with and sets including trip bolt (5), several fastening thread holes (31), several fastening threads are offered on the sliding block (3) Hole (31) is arranged along the glide direction of sliding block (3), is offered on the pedestal (2) and fastening thread hole (31) and trip bolt (5) the fastening counter sink (23) coordinated.

5. the simple chasing bar according to claim 1,2 or 3 for large apertures tapping, it is characterised in that：It is described fixed Position device includes at least 2 groups positioning screws (6) being axially distributed along positioning tube (4), and every group of quantity is at least two and not same On one straight line, the positioning end of the positioning screw (6) is contacted across positioning tube (4) with the circumferential surface of locating rod (13).

6. the simple chasing bar according to claim 5 for large apertures tapping, it is characterised in that：The positioning screw (6) end face is the cambered surface coordinated with positioning tube (4).

7. the simple chasing bar according to claim 1 for large apertures tapping, it is characterised in that：The locating rod (13) the other end is vertically and fixedly provided with torque tube (11), and the surface of the torque tube (11) is provided with level meter (7), the level Have level pearl, the level meter (7) parallel with the axis of torque tube (11) in instrument (7).

8. the simple chasing bar according to claim 1 for large apertures tapping, it is characterised in that：The mounting hole (121) quantity at least two, several mounting hole (121) coaxial lines and ladder-like distribution.

9. the simple chasing bar according to claim 1 for large apertures tapping, it is characterised in that：The pedestal (2) Bottom end be fixed with mounting plate (8), the surrounding of the mounting plate (8) is through there is several counter sinks.

10. the simple chasing bar according to claim 9 for large apertures tapping, it is characterised in that：The pedestal (2) Both sides be provided with the floor (9) for being used to support pedestal (2), the bottom end of the floor (9) is fixedly connected with mounting plate (8).