CN210789367U - Drill jig is with interchangeable drill bushing subassembly - Google Patents
Drill jig is with interchangeable drill bushing subassembly Download PDFInfo
- Publication number
- CN210789367U CN210789367U CN201921898859.3U CN201921898859U CN210789367U CN 210789367 U CN210789367 U CN 210789367U CN 201921898859 U CN201921898859 U CN 201921898859U CN 210789367 U CN210789367 U CN 210789367U
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- China
- Prior art keywords
- drill bushing
- drill
- hole
- bushing
- replaceable
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Abstract
The utility model provides an interchangeable drill bushing component for a drill jig, which comprises an interchangeable drill bushing and a drill plate which are matched with each other, wherein a through hole is arranged in the interchangeable drill bushing, and the interchangeable drill bushing comprises a cylinder and a cone frustum which are coaxially connected; the drill jig plate is provided with a V-shaped through hole matched with the cone frustum, and the drill jig plate is provided with a fixed magnetic box for pressing the replaceable drill bushing. The utility model discloses a circular cone platform and V-arrangement through-hole phase-match to compress tightly the interchangeable drill bushing through fixed magnetism box and fix on the bushing plate, make circular cone platform and V-arrangement through-hole closely laminate, prevented vertical and lateral displacement, improved the position precision in the hole that processes out, can avoid traditional interchangeable drill bushing to install the influence of time gap to the position precision in the bushing plate with clearance fit, thereby can improve the position precision in the hole that is processed out.
Description
Technical Field
The utility model relates to the technical field of machinery, especially, relate to a drill jig is with interchangeable drill bushing subassembly.
Background
The drilling machine clamp is a special clamp widely applied to machining, and is important technological equipment for processing holes in workpieces on a drilling machine. The drill bushing mounted on the drill plate is an important element in the drill jig for guiding the tool to ensure the positional accuracy of the hole to be machined. The traditional fixed drill bushing is pressed into a hole of the drill plate in an interference fit mode, is high in position precision and not easy to replace after being worn, and is mainly used for medium and small batch production. In order to overcome the defect that the fixed drill bushing cannot be replaced after being worn, the replaceable drill bushing is provided. The replaceable drill bushing is arranged in the drill plate in a clearance fit manner, is convenient to replace after being worn, and is multipurpose for mass production. When a large number of single-step hole machining production batches are carried out, a replaceable drill bushing is usually selected for replacing a worn drill bushing, but the replaceable drill bushing and the hole of the drill plate are in clearance fit, so that the machined hole is difficult to have high position precision.
Disclosure of Invention
To foretell technical problem, the utility model provides a drill jig is with interchangeable drill bushing subassembly solves among the prior art drill jig's interchangeable drill bushing and hardly makes the problem of processing out the hole that has high position precision.
In order to achieve the above purpose, the technical solution of the present invention is realized as follows:
a replaceable drill bushing component for a drill jig comprises a replaceable drill bushing and a drill plate which are matched, wherein a through hole is formed in the replaceable drill bushing; the drill jig plate is provided with a V-shaped through hole matched with the cone frustum, and the drill jig plate is provided with a fixed magnetic box for pressing the replaceable drill bushing.
Furthermore, the fixed magnetic box is rotatably connected to the drill jig plate, the head of the fixed magnetic box is arc-shaped, and a groove matched with the arc-shaped is formed in the cylinder.
Furthermore, the head of the fixed magnetic box is provided with a magnetic box positioning hole, the corresponding position of the cylinder is provided with a replaceable drill bushing positioning hole, and the magnetic box positioning hole and the replaceable drill bushing positioning hole are fixed through inserting a positioning pin.
Furthermore, the fixed magnetic boxes are at least two and are uniformly distributed by taking the axis of the replaceable drill bushing as the center.
The utility model has the advantages that: the utility model discloses a circular cone platform and V-arrangement through-hole phase-match to compress tightly the interchangeable drill bushing through fixed magnetism box and fix on the bushing plate, make circular cone platform and V-arrangement through-hole closely laminate, prevented vertical and lateral displacement, and prevented circumferential direction through the locating pin, improved the position accuracy in the hole that processes out, can avoid traditional interchangeable drill bushing to install the influence of time gap to the position accuracy in the bushing plate with clearance fit, thereby can improve the position accuracy in the hole that is processed out.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the replaceable drill bushing assembly for a drill jig of the present invention comprises a replaceable drill bushing 1 and a drill plate 2 which are matched with each other, wherein a through hole is formed in the replaceable drill bushing 1, the replaceable drill bushing 1 comprises a cylinder and a truncated cone which are coaxially connected, specifically, the truncated cone is fixed at the lower side of the cylinder, the outer diameter of the truncated cone is gradually reduced from one end close to the cylinder to one end far from the cylinder, and the maximum outer diameter of the truncated cone is smaller than the outer diameter of the cylinder; the drilling template 2 is provided with a V-shaped through hole matched with the cone frustum; the surface of the drilling template 2 is provided with a fixed magnetic box 3 for pressing the replaceable drill bushing 1. The replaceable drill bushing 1 is pressed and fixed on the drill jig plate 2 under the action of the fixed magnetic box 3, and due to the fact that the cone frustum is matched with the V-shaped through hole, the cone frustum is tightly attached to the V-shaped through hole in the pressing process, so that not only is the longitudinal displacement of the replaceable drill bushing 1 prevented, but also the transverse displacement is prevented, and the position precision of a processed hole is improved. The replaceable drill bushing 1 can be conveniently taken down by rotating the fixed magnetic box 3.
Further, as shown in fig. 1 and 2, the fixed magnetic box 3 is rotatably connected to the drill plate 2, the head of the fixed magnetic box 3 is arc-shaped, and the cylinder is provided with a groove matching with the arc-shaped. The arc shape and the groove shape do not obstruct the rotation of the fixed magnetic box 3. When the cylinder is pressed by the fixed magnetic box 3, the rotation of the replaceable drill bushing 1 is avoided through the matching effect of the arc and the groove.
Further, as shown in fig. 1 and 2, a magnetic box positioning hole is formed at the head of the fixed magnetic box 3, a drill bushing positioning hole is formed at the corresponding position of the cylinder, and the magnetic box positioning hole and the drill bushing positioning hole are fixed by inserting a positioning pin 4. The positioning pin 4 can further avoid the rotation of the replaceable drill bushing 1, and the position precision of the processed hole is further improved. When the replaceable drill bushing 1 is replaced, the positioning pin 4 is taken down, and the fixed magnetic box 3 is opened, so that the replaceable drill bushing 1 can be conveniently taken down.
Further, as shown in fig. 1 and 2, at least two fixed magnetic boxes 3 are provided, and the fixed magnetic boxes 3 are uniformly distributed with the axis of the replaceable drill bushing 1 as the center. In this embodiment, two fixed magnetic boxes are provided, and in other embodiments, 3 to 6 fixed magnetic boxes may be provided. The uniformly distributed fixed magnetic boxes 3 ensure that the replaceable drill bushing 1 is stressed uniformly all around when being pressed tightly, and the frustum cone is not easy to deflect when being tightly attached to the V-shaped through hole. The above-mentioned magnetic box positioning holes may be provided on one or more fixed magnetic boxes 3, and the number and position of the drill bushing positioning holes and the number of the positioning pins 4 correspond to the magnetic box positioning holes.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A replaceable drill bushing component for a drilling machine fixture comprises a replaceable drill bushing (1) and a drill plate (2) which are matched, wherein a through hole is formed in the replaceable drill bushing (1), and the replaceable drill bushing component is characterized in that the replaceable drill bushing (1) comprises a cylinder and a cone frustum which are coaxially connected; the drill jig plate (2) is provided with a V-shaped through hole matched with the cone frustum, and the drill jig plate (2) is provided with a fixed magnetic box (3) for pressing the replaceable drill bushing (1).
2. The replaceable drill bushing assembly for the drill jig as recited in claim 1, wherein the fixed magnetic box (3) is rotatably connected to the drill plate (2), the head of the fixed magnetic box (3) is arc-shaped, and the cylinder is provided with a groove fitting the arc-shaped.
3. The replaceable drill bushing assembly for the drill jig according to claim 2, wherein the head of the fixed magnetic box (3) is provided with a magnetic box positioning hole, the corresponding position of the cylinder is provided with a replaceable drill bushing positioning hole, and the magnetic box positioning hole and the replaceable drill bushing positioning hole are fixed by inserting a positioning pin (4).
4. The replaceable drill bushing assembly for the drill jig is characterized in that at least two fixed magnetic boxes (3) are arranged, and the fixed magnetic boxes (3) are uniformly distributed by taking the axis of the replaceable drill bushing (1) as the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921898859.3U CN210789367U (en) | 2019-11-06 | 2019-11-06 | Drill jig is with interchangeable drill bushing subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921898859.3U CN210789367U (en) | 2019-11-06 | 2019-11-06 | Drill jig is with interchangeable drill bushing subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210789367U true CN210789367U (en) | 2020-06-19 |
Family
ID=71239111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921898859.3U Expired - Fee Related CN210789367U (en) | 2019-11-06 | 2019-11-06 | Drill jig is with interchangeable drill bushing subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210789367U (en) |
-
2019
- 2019-11-06 CN CN201921898859.3U patent/CN210789367U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 Termination date: 20201106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |