CN211248464U

CN211248464U - Circular tube type guardrail connecting piece drilling positioning fixture

Info

Publication number: CN211248464U
Application number: CN201921769667.2U
Authority: CN
Inventors: 姚健明; 朱建平
Original assignee: Suzhou Industrial Park Mingli Casting Co ltd
Current assignee: Suzhou Industrial Park Mingli Casting Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-08-14
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a circular tube type guardrail connecting piece drilling positioning fixture, which has the key points of the technical scheme that the fixture comprises a base and a vertical plate which is vertical to the base, wherein a positioning column which is vertical to the vertical plate and used for sleeving a workpiece is arranged on the vertical plate; the top of the vertical plate is provided with a positioning plate with the length direction parallel to the axis of the positioning column, the positioning plate is provided with a plurality of positioning holes, and the positioning column is provided with a yielding hole for inserting a drill bit during drilling; and a limiting part for preventing the workpiece from rotating circumferentially is arranged on the positioning column. The utility model has the advantages of to the round tube type work piece location convenience, do benefit to promotion drilling machining efficiency.

Description

Circular tube type guardrail connecting piece drilling positioning fixture

Technical Field

The utility model relates to an anchor clamps, more specifically say, it relates to a circle cast guardrail connecting piece drilling positioning fixture.

Background

Fig. 1 shows a circular tube type guardrail connecting piece, which comprises a tube body 1, wherein one end of the tube body 1 is provided with a notch 11. The circumferential side wall of the tube body 1 is provided with a plurality of through holes 12. When the through hole 12 is opened, the pipe body 1 needs to be fixed by a jig. However, the conventional clamp needs to clamp and lock the pipe body 1, so that after drilling of one workpiece is completed, the locking needs to be released, a second workpiece needs to be clamped, positioned and locked, and then drilling is performed. The whole operation process is complicated, and the improvement of the drilling processing efficiency on the circular tube type workpiece is limited. Therefore, how to design a special clamp which is convenient for clamping and positioning is a problem to be solved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a tubular type guardrail connecting piece drilling positioning fixture, it has the advantage that convenient, do benefit to promotion drilling machining efficiency to the work piece location.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a drilling positioning clamp for a circular tube type guardrail connecting piece comprises a base and a vertical plate arranged perpendicular to the base, wherein a positioning column which is perpendicular to the vertical plate and used for sleeving a workpiece is arranged on the vertical plate; the top of the vertical plate is provided with a positioning plate with the length direction parallel to the axis of the positioning column, the positioning plate is provided with a plurality of positioning holes, and the positioning column is provided with a yielding hole for inserting a drill bit during drilling; and a limiting part for preventing the workpiece from rotating circumferentially is arranged on the positioning column.

By adopting the technical scheme, the pipe body of the workpiece is sleeved on the positioning column, and the positioning is carried out by means of the limiting part, so that the position of the hole required to be opened on the pipe body is aligned to the positioning hole on the positioning plate. And then, drilling on the pipe body by using the drill bit to penetrate through the positioning hole. After the drilling of a work piece is completed, the new work piece is sleeved after the work piece is detached, the operation is convenient and simple, the drilling positioning is accurate, and the drilling machining efficiency of the circular tube type guardrail connecting piece is greatly improved.

Furthermore, the limiting part is a limiting strip arranged along the axial direction of the positioning column.

Through adopting above-mentioned technical scheme, spacing strip card breach on going into the body can play limiting displacement for the difficult circumferential direction of body suit behind the reference column makes the drilling position accurate.

Furthermore, the positioning column comprises a core shaft fixed on the vertical plate and a sleeve sleeved on the core shaft, and a fixing piece used for fixing the sleeve is inserted in the sleeve; the limiting strip is arranged on the outer circumferential side wall of the sleeve.

Through adopting above-mentioned technical scheme, change the sleeve of different external diameters, can change positioning fixture into the anchor clamps that are suitable for the drilling of the tubular work piece of processing different internal diameters size, increased anchor clamps's suitability. After the sleeve is sleeved, the sleeve is fastened by the fixing piece.

Further, the fixing piece is a fixing bolt inserted into the sleeve.

Through adopting above-mentioned technical scheme, the fixing bolt of screwing make it insert the dabber can, to telescopic fastening easy operation, increased the convenience that the sleeve was changed in the dismouting.

Furthermore, a plurality of positions of the abdicating hole are distributed along the circumferential direction of the sleeve; the sleeve is provided with a plurality of fixing screw holes which are distributed along the circumferential direction of the sleeve and used for inserting fixing bolts.

By adopting the technical scheme, after the sleeve is rotated, the fixing bolt is inserted into the fixing screw holes at different positions on the mandrel, so that the same set of clamp can be used for processing the through holes at different positions on the tubular workpiece, and the applicability of the clamp is improved.

Furthermore, the abdicating hole is a waist-shaped hole with the long axis direction parallel to the axial direction of the sleeve.

By adopting the technical scheme, the abdicating space is large, and chip removal and heat dissipation are facilitated.

Furthermore, the limiting strip extends towards the end of the sleeve to form an embedding block, and a plurality of clamping grooves for the embedding block to be clamped in are distributed on the vertical plate around the axis of the mandrel.

Through adopting above-mentioned technical scheme, the draw-in groove can play the assistance-localization real-time effect to the sleeve to the inlay card for it is stable after the sleeve installation, difficult not hard up.

Furthermore, a supporting column used for supporting one end, away from the vertical plate, of the workpiece sleeved on the positioning column is arranged on the base.

Through adopting above-mentioned technical scheme, having played the auxiliary stay effect to the work piece that the reference column was located to the cover, increased the stability behind the work piece suit for the work piece is difficult for taking off.

Furthermore, a positioning pipe is coaxially arranged in the positioning hole.

Through adopting above-mentioned technical scheme, the locating tube can select the more wear-resisting material than the riser for the non-deformable of locating hole damages, has increased anchor clamps's life.

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

the pipe body of the workpiece is sleeved on the positioning column, and positioning is carried out by means of the limiting part, so that the position of the pipe body needing to be opened aligns with the positioning hole in the positioning plate. And then, drilling on the pipe body by using the drill bit to penetrate through the positioning hole. After the drilling of a workpiece is completed, a new workpiece can be replaced, the operation is convenient and simple, the drilling positioning is accurate, and the drilling machining efficiency of the circular tube type guardrail connecting piece is greatly improved.

Drawings

FIG. 1 is a schematic structural diagram of a tubular guardrail connecting piece in the prior art;

FIG. 2 is a schematic structural diagram of a positioning clamp for drilling a round tube type guardrail connecting piece in the embodiment;

FIG. 3 is an exploded view of the positioning clamp for drilling a circular tube type guardrail connecting piece in the embodiment;

FIG. 4 is a schematic structural view of a sleeve in the embodiment;

FIG. 5 is a working condition diagram of the circular tube type guardrail connecting piece drilling positioning clamp in the embodiment.

In the figure: 1. a pipe body; 11. a notch; 12. a through hole; 2. a base; 3. a vertical plate; 31. a card slot; 4. a positioning column; 41. a mandrel; 411. fixing screw holes; 42. a sleeve; 421. a hole of abdication; 422. a limiting strip; 423. fixing the bolt; 424. an embedding block is clamped; 5. a support pillar; 6. positioning a plate; 61. positioning holes; 611. and (4) positioning the tube.

Detailed Description

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

Example (b):

a drilling positioning fixture for a circular tube type guardrail connecting piece refers to fig. 2 and comprises a rectangular plate-shaped base 2, wherein a vertical plate 3 perpendicular to the base 2 is arranged on the base 2. One side of the vertical plate 3 is provided with a positioning column 4 perpendicular to the vertical plate 3, and the outer diameter of the positioning column 4 is equal to the inner diameter of the workpiece pipe body 1. During drilling, the positioning column 4 is sleeved with the workpiece, so that one end of the workpiece, which is provided with the notch 11, is abutted against the vertical plate 3.

Referring to fig. 2, a positioning plate 6 parallel to the axis of the positioning column 4 is disposed on the top of the vertical plate 3, two positioning holes 61 are formed in the positioning plate 6, and a positioning tube 611 is inserted into each positioning hole 61. The material of the positioning tube 611 is selected to be a material with better wear resistance than that of the positioning plate 6, and a drill bit is inserted from the positioning tube 611 during drilling to drill a workpiece sleeved on the positioning column 4. The more wear-resistant positioning tube 611 is not easily damaged by the drill bit, and the service life of the clamp is prolonged.

Referring to fig. 3, the positioning column 4 includes a core shaft 41 fixed to the vertical plate 3 and a sleeve 42 coaxially sleeved on the core shaft 41. The core shaft 41 and the sleeve 42 are fixed by a fixing bolt 423 inserted into the sleeve 42.

Referring to fig. 3 and 4, a plurality of sets of yielding holes 421 are formed in the sleeve 42 at equal intervals in the circumferential direction, in the present embodiment, three sets are provided, and each set is provided with two yielding holes 421. The distance between the two receding holes 421 in the same group is equal to the distance between the positioning holes 61. During drilling, the relief hole 421 is used for the drill to insert and the debris generated by drilling can be discharged into the relief hole 421. In this embodiment, the yielding holes 421 are all waist-shaped holes, and the long axis direction of the yielding holes 421 is parallel to the axial direction of the sleeve 42. A plurality of fixing screw holes 411 are circumferentially distributed on the mandrel 41. In this embodiment, three fixing screw holes 411 are provided at equal intervals around the circumference of the spindle 41.

Referring to fig. 3 and 4, a limiting strip 422 is disposed on the outer circumferential sidewall of the sleeve 42 along the length direction of the sleeve 42, and the limiting strip 422 is disposed at one end of the sleeve 42 facing the vertical plate 3. After the sleeve 42 is fixed, the workpiece is sleeved on the positioning column 4, so that the limiting strip 422 is clamped in the notch 11 on the workpiece, and the workpiece can be prevented from rotating circumferentially. The spacing strip 422 extends towards the vertical plate 3, and a clamping and embedding block 424 is formed at the end of the sleeve 42. The vertical plate 3 is provided with a plurality of clamping grooves 31 for clamping the embedding blocks 424, and the clamping grooves 31 are distributed at three positions at equal intervals along the circumferential direction of the mandrel 41. When the position of the adjusting sleeve 42 is rotated, the clamping block 424 is clamped into the clamping groove 31 at the corresponding position, and then the fixing bolt 423 is screwed and locked.

Referring to fig. 4, a supporting column 5 parallel to the vertical plate 3 is disposed on the base 2 for supporting an end of the workpiece sleeved on the positioning column 4, the end being away from the vertical plate 3. As shown in fig. 4, the workpiece is sleeved on the positioning post 4, so that the limiting strip 422 is clamped into the notch 11, i.e. the workpiece is installed in place. At this time, the position corresponding to the positioning tube 611 on the positioning plate 6 is the position where the tube piercing is required to be formed, and the drill bit penetrates through the opening of the positioning tube 611 to complete the tube piercing drilling on the workpiece. Due to the arrangement of the abdicating hole 421 on the positioning column 4, the feeding and chip removal of the drill bit are not hindered. The drilling positioning fixture of the embodiment is used for drilling the cylindrical guardrail connecting piece, the workpiece is installed, the operation is simple, the locking and positioning steps are not needed, the drilling can be rapidly completed, and the drilling is accurate and efficient.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

Claims

1. The utility model provides a tubular type guardrail connecting piece drilling positioning fixture which characterized in that: the device comprises a base (2) and a vertical plate (3) which is perpendicular to the base (2), wherein a positioning column (4) which is perpendicular to the vertical plate (3) and used for sleeving a workpiece is arranged on the vertical plate (3); the top of the vertical plate (3) is provided with a positioning plate (6) with the length direction parallel to the axis of the positioning column (4), the positioning plate (6) is provided with a plurality of positioning holes (61), and the positioning column (4) is provided with a abdicating hole (421) for inserting a drill bit during drilling; and a limiting part for preventing the workpiece from rotating circumferentially is arranged on the positioning column (4).

2. The circular tube type guardrail connecting piece drilling and positioning clamp of claim 1, which is characterized in that: the limiting part is a limiting strip (422) axially arranged along the positioning column (4).

3. The circular tube type guardrail connecting piece drilling and positioning clamp of claim 2, wherein: the positioning column (4) comprises a core shaft (41) fixed on the vertical plate (3) and a sleeve (42) sleeved on the core shaft (41), and a fixing piece for fixing the sleeve (42) is inserted in the sleeve (42); the limiting strip (422) is arranged on the outer circumferential side wall of the sleeve (42).

4. The circular tube type guardrail connecting piece drilling and positioning clamp of claim 3, wherein: the fixing piece is a fixing bolt (423) inserted in the sleeve (42).

5. The circular tube type guardrail connecting piece drilling and positioning clamp of claim 3, wherein: a plurality of yielding holes (421) are distributed along the circumferential direction of the sleeve (42); the sleeve (42) is provided with a plurality of fixing screw holes (411) which are distributed along the circumferential direction of the sleeve (42) and used for inserting fixing bolts (423).

6. The circular tube type guardrail connecting piece drilling and positioning clamp of claim 5, wherein: the abdicating hole (421) is a waist-shaped hole with the long axis direction parallel to the axial direction of the sleeve (42).

7. The circular tube type guardrail connecting piece drilling and positioning clamp of claim 5, wherein: the limiting strip (422) extends towards the end of the sleeve (42) to form a clamping and embedding block (424), and a plurality of clamping grooves (31) for clamping and embedding blocks (424) are distributed on the vertical plate (3) around the axis of the mandrel (41).

8. The circular tube type guardrail connecting piece drilling and positioning clamp of claim 1, which is characterized in that: the base (2) is provided with a supporting column (5) which is used for supporting one end, away from the vertical plate (3), of a workpiece arranged on the positioning column (4).

9. The circular tube type guardrail connecting piece drilling and positioning clamp of claim 1, which is characterized in that: and a positioning pipe (611) is coaxially arranged in the positioning hole (61).