Auxiliary tool for drilling radial hole in screw

Abstract

The utility model discloses an auxiliary tool for drilling a radial hole in a screw. The auxiliary tool comprises a base, a supporting plate and a drill plate. When a radial hole needs to be drilled in the threaded section of the threaded rod, the threaded rod is firstly placed in the V-shaped groove, then the first jackscrew in the first threaded hole in the drill plate is rotated, and due to the fact that the first threaded hole is located in the symmetric center face of the V-shaped groove, the first jackscrew can abut against the threaded rod and fix the threaded rod. Due to the fact that the guide hole is located in the symmetrical center face of the V-shaped groove, after the auxiliary tool is fixed to a drilling machine and positioned, the drill bit enters from the guide hole to drill the screw rod, the guide hole can conduct auxiliary guiding on the drill bit, and therefore radial deviation of the drill bit can be avoided. By means of the auxiliary tool, the drill bit can be evenly stressed when drilling the radial hole in the screw, the cutter relieving phenomenon is avoided, and therefore the position precision of the drilled radial hole is high.

Description

Technical Field

[0001] This application relates to the field of auxiliary tooling technology for machining, and in particular to an auxiliary tooling for drilling radial holes in a screw. Background Technology

[0002] When manufacturing bolt-type fasteners, radial safety holes are usually machined on the external threads after the thread machining is completed.

[0003] In related technologies, traditional machining methods have two drawbacks. First, the operator needs to visually locate the appropriate position between the two thread pitches, first using a center drill for positioning, and then drilling with a drill bit. This process is cumbersome and inefficient. Second, during drilling, the drill bit experiences uneven force on the workpiece, causing passive displacement in the cutting direction (axial) or radial direction (also known as tool deflection). This results in out-of-tolerance dimensions and positional accuracy of the hole, ultimately leading to the scrapping of the part. Utility Model Content

[0004] This application provides an auxiliary tooling for drilling radial holes in screws, which can solve the technical problem in the prior art where the drill bit easily deflects when drilling radial holes in the threaded section of a screw, resulting in excessive deviation in the radial hole position. The technical solution is as follows:

[0005] An auxiliary tooling for drilling radial holes in a screw includes: a base with a V-groove on its upper surface, the V-groove having a symmetrical center plane; a support plate fixedly connected to the upper surface of the base, the support plate having a through hole in its center, the through hole having a dimension greater than the width of the V-groove along a direction perpendicular to the V-groove; and a drilling template, matching the shape of the through hole, disposed within the through hole, and detachably connected to the base, the drilling template having a guide hole and a first threaded hole, both the guide hole and the first threaded hole being located within the symmetrical center plane of the V-groove, and a first set screw being disposed within the first threaded hole.

[0006] Optionally, the auxiliary tooling also includes a baffle plate, which is fixedly connected to one side of the base. The baffle plate is perpendicular to the extension direction of the V-groove and closes one end of the V-groove. The baffle plate is provided with a second threaded hole, and a positioning bolt is provided in the second threaded hole.

[0007] Optionally, a positioning nut may be provided on the positioning bolt.

[0008] Optionally, the number of guide holes is three, and the diameters of the three guide holes are not equal; the number of first threaded holes is two; the three guide holes and the two first threaded holes are collinear.

[0009] Optionally, the side of the support plate is provided with two opposing third threaded holes, and a second set screw is provided in each of the two third threaded holes.

[0010] Optionally, the support plate is provided with two fourth threaded holes, and a first bolt is provided in each of the two fourth threaded holes; a washer is fitted on the first bolt, and the first bolt and the washer are used to fix the support plate.

[0011] Optionally, the line connecting the two third threaded holes is perpendicular to the line connecting the two fourth threaded holes.

[0012] Optionally, the through hole is a round hole, and the drill template is a circular plate.

[0013] Optionally, the baffle is connected to the base by a second bolt.

[0014] Optionally, the bottom of the V-shaped groove has a chip-receiving groove parallel to the extending direction of the V-shaped groove.

[0015] The beneficial effects of the technical solutions provided in this application include at least the following:

[0016] An auxiliary tooling for drilling radial holes in a screw includes a base, a support plate, and a drill template. When drilling a radial hole in the threaded section of the screw, the screw is first placed in a V-groove, and then the first set screw in the first threaded hole on the drill template is rotated. Since the first threaded hole is located within the symmetrical center plane of the V-groove, the first set screw can abut against the screw to fix it in place. Furthermore, since the guide hole is located within the symmetrical center plane of the V-groove, after the auxiliary tooling is fixed and positioned on the drilling machine, the drill bit enters through the guide hole to drill the screw. The guide hole can assist in guiding the drill bit, thereby preventing the drill bit from deflecting. Using the auxiliary tooling of this application to drill holes in the screw ensures that the drill bit is subjected to uniform force during drilling, preventing deflection, and thus resulting in high positional accuracy of the drilled radial hole.

[0017] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a screw and a screw that requires machining radial holes;

[0020] Figure 2 This is a perspective view of an auxiliary tooling for drilling radial holes in a screw, provided in an embodiment of this application.

[0021] Figure 3 This is a front view of the auxiliary tooling for drilling radial holes in a screw, provided in an embodiment of this application;

[0022] Figure 4 This is a top view of the auxiliary tooling for drilling radial holes in a screw, provided in an embodiment of this application;

[0023] Figure 5 This is a rear view of the auxiliary tooling for drilling radial holes in a screw, provided in an embodiment of this application.

[0024] Figure 6 This is a right view of the auxiliary tooling for drilling radial holes in a screw, provided in an embodiment of this application;

[0025] Figure 7 This is a cross-sectional view of the auxiliary tooling for drilling radial holes in the screw provided in the embodiments of this application after clamping the screw.

[0026] Explanation of reference numerals in the attached figures

[0027] 1-Base; 101-V-groove; 102-Chip groove; 2-Support plate; 3-Drill template; 301-Guide hole; 4-Baffle; 5-Positioning bolt; 6-Washer; 7-Second set screw; 8-First bolt; 9-Second bolt; 10-Positioning nut; 11-First set screw; 12-Screw; 1201-Radial hole. Detailed Implementation

[0028] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0029] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the relative positions of the corresponding components in the direction of gravity when they are in use, and "inner" and "outer" refer to their relative positions to the contours of the corresponding components themselves. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0030] refer to Figure 1 The threaded portion of screw 12 requires a radial hole 1201 to be drilled.

[0031] According to the embodiments of this application, refer to Figures 2 to 7As shown, an auxiliary tooling for drilling radial holes in a screw includes: a base 1, a support plate 2, and a drilling template 3.

[0032] Among them, reference Figure 1 and Figure 2 As shown, the upper surface of the base 1 has a V-shaped groove 101, which has a symmetrical center plane; the support plate 2 is fixedly connected to the upper surface of the base 1, and the support plate 2 has a through hole in the middle, the size of which along the direction perpendicular to the V-shaped groove 101 is greater than the width of the V-shaped groove 101; the drill template 3 matches the shape of the through hole, is disposed in the through hole, and is detachably connected to the base 1, the drill template 3 is provided with a guide hole 301 and a first threaded hole, both of which are located in the symmetrical center plane of the V-shaped groove 101, and a first set screw 11 is provided in the first threaded hole.

[0033] In the above embodiment, the support plate 2 is detachably connected to the base 1. When it is necessary to drill a radial hole 1201 in the threaded section of the screw 12, the screw 12 is first placed in the V-groove 101, and then the first set screw 11 in the first threaded hole on the drill template 3 is rotated. Since the first threaded hole is located within the symmetrical center plane of the V-groove 101, the first set screw 11 can abut against the screw 12 to fix the screw 12. Furthermore, since the guide hole 301 is located within the symmetrical center plane of the V-groove 101, after the auxiliary tooling is fixed and positioned on the drilling machine, the drill bit enters through the guide hole 301 to drill the screw 12. The guide hole 301 can provide auxiliary guidance for the drill bit, thereby preventing radial deviation of the drill bit. Using the auxiliary tooling of this application to drill the radial hole 1201 in the screw 12 ensures that the drill bit is subjected to uniform force when drilling the radial hole 1201, preventing tool deflection. Therefore, the positional accuracy of the drilled radial hole 1201 is high.

[0034] According to the embodiments of this application, refer to Figures 2 to 7 As shown, the auxiliary tooling also includes a baffle 4, which is fixedly connected to one side of the base 1. The baffle 4 is perpendicular to the extending direction of the V-groove 101 and closes one end of the V-groove 101. A second threaded hole is provided on the baffle 4, and a positioning bolt 5 is provided in the second threaded hole. (Reference) Figure 7 In the above embodiment, when it is necessary to move the screw 12, the positioning bolt 5 is rotated clockwise, and the positioning bolt 5 moves into the base 1, thereby pushing the screw 12 to move along the V-groove 101. The positioning bolt 5 is provided with a positioning nut 10. After the screw 12 moves into place, the positioning nut 10 can be tightened to fix the positioning bolt 5.

[0035] According to the embodiments of this application, refer to Figure 2 and Figure 4As shown, in order to enable the auxiliary tooling to process radial holes 1201 of more diameters, the number of guide holes 301 is three, and the diameters of the three guide holes 301 are not equal. In order to make the screw 12 more stable, the number of first threaded holes is two, and a first set screw 11 is provided in each first threaded hole; the three guide holes 301 and the two first threaded holes are collinear.

[0036] According to the embodiments of this application, refer to Figure 2 , Figure 4 and Figure 7 As shown, the support plate 2 has two opposing third threaded holes on its side, and each of the two third threaded holes has a second set screw 7. The two second set screws 7 can further enhance the reliability of the support plate 2.

[0037] According to the embodiments of this application, refer to Figures 2 to 7 As shown, the support plate 2 is provided with two fourth threaded holes, and a first bolt 8 is respectively installed in each of the two fourth threaded holes; a washer 6 is fitted on the first bolt 8, and the first bolt 8 and the washer 6 are used to fix the support plate 2. In this way, when the two first bolts 8 are tightened, the two first bolts 8 can apply pressure to the washer 6, thereby reliably fixing the drill template 3 to the base 1.

[0038] According to the embodiments of this application, refer to Figures 2 to 7 As shown, in order to ensure that the drill template 3 is subjected to uniform force, the line connecting the two third threaded holes is perpendicular to the line connecting the two fourth threaded holes.

[0039] According to the embodiments of this application, refer to Figures 2 to 7 As shown, the through hole is a circular hole, and the drill template 3 is a circular plate. In other embodiments, the drill template 3 can also be other shapes, such as rectangles, triangles, etc., and this application does not limit this.

[0040] According to the embodiments of this application, refer to Figure 4 and Figure 5 As shown, the baffle 4 is connected to the base 1 by the second bolt 9.

[0041] According to the embodiments of this application, refer to Figures 2 to 7 As shown, in order to facilitate the collection of iron filings generated during the drilling of radial hole 1201, the bottom of the V-groove 101 has a chip-collecting groove 102 parallel to the extending direction of the V-groove 101.

[0042] The following details the working process of the auxiliary tooling used in this application for drilling radial holes in screws:

[0043] The first step is to place the drill template 3 in the support plate 2 and tighten it with two second set screws 7. Then, fix the support plate 2 to the base 1 with the first bolt 8 and the washer 6.

[0044] The second step is to use the second bolt 9 to fix the baffle 4 to one end of the V-groove 101 of the base 1, and to screw the positioning bolt 5 into the second threaded hole.

[0045] The third step is to place the screw 12 to be drilled in the V-groove 101 of the base 1, and adjust it to a suitable position by rotating the positioning bolt 5. After the position is determined, tighten the positioning nut 10 to fix the positioning bolt 5, and screw the first set screw 11 into the first threaded hole on the drilling template 3 to press the screw 12 to be drilled.

[0046] The fourth step is to place the auxiliary tooling with screw 12 for drilling radial holes on the screw on the worktable of the drilling machine, and fix the auxiliary tooling after the guide hole 301 to be drilled is directly below the drill bit, and start the drilling machine to process the radial hole 1201.

[0047] The dimensional and positional tolerances of the radial hole 1201 are ensured by the guide hole 301 on the drilling template 3 and the rotating positioning bolt 5, thus avoiding the problem of parts exceeding tolerances due to tool deflection during drilling. In addition, the size of the guide hole 301 on the drilling template 3 can be manufactured according to actual needs to meet the processing of parts of different specifications and different hole diameters.

[0048] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0049] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0050] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An auxiliary tooling for drilling radial holes in a screw, characterized in that, include: The base (1) has a V-shaped groove (101) on its upper surface, the V-shaped groove (101) having a symmetrical central plane; A support plate (2) is fixedly connected to the upper surface of the base (1). The support plate (2) has a through hole in the middle. The size of the through hole along the direction perpendicular to the V-groove (101) is greater than the width of the V-groove (101). The drill template (3) is matched with the shape of the through hole, is set in the through hole, and is detachably connected to the base (1). The drill template (3) is provided with a guide hole (301) and a first threaded hole. The guide hole (301) and the guide hole (301) are both located in the symmetrical center plane of the V-groove (101). A first set screw (11) is provided in the first threaded hole.

2. The auxiliary tooling for drilling radial holes in a screw according to claim 1, characterized in that, The auxiliary tooling also includes a baffle (4), which is fixedly connected to one side of the base (1). The baffle (4) is perpendicular to the extension direction of the V-groove (101) and closes one end of the V-groove (101). A second threaded hole is provided on the baffle (4), and a positioning bolt (5) is provided in the second threaded hole.

3. The auxiliary tooling for drilling radial holes in a screw according to claim 2, characterized in that, A positioning nut (10) is provided on the positioning bolt (5).

4. The auxiliary tooling for drilling radial holes in a screw according to claim 1, characterized in that, The number of guide holes (301) is three, and the diameters of the three guide holes (301) are not equal; the number of first threaded holes is two; the three guide holes (301) and the two first threaded holes are collinear.

5. The auxiliary tooling for drilling radial holes in a screw according to claim 1, characterized in that, The side of the support plate (2) is provided with two opposing third threaded holes, and a second set screw (7) is provided in each of the two third threaded holes.

6. The auxiliary tooling for drilling radial holes in a screw according to claim 5, characterized in that, The support plate (2) is provided with two fourth threaded holes, and a first bolt (8) is provided in each of the two fourth threaded holes; a washer (6) is sleeved on the first bolt (8), and the first bolt (8) and the washer (6) are used to fix the support plate (2).

7. The auxiliary tooling for drilling radial holes in a screw according to claim 6, characterized in that, The line connecting the two third threaded holes is perpendicular to the line connecting the two fourth threaded holes.

8. The auxiliary tooling for drilling radial holes in a screw according to claim 1, characterized in that, The through hole is a round hole, and the drill template (3) is a circular plate.

9. The auxiliary tooling for drilling radial holes in a screw according to claim 2, characterized in that, The baffle (4) is connected to the base (1) by a second bolt (9).

10. The auxiliary tooling for drilling radial holes in a screw according to claim 1, characterized in that, The bottom of the V-groove (101) has a chip-receiving groove (102) parallel to the extending direction of the V-groove (101).

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