Special drill bushing for machining through cover bolt hole

Abstract

The utility model provides a special drill bushing for processing a transparent cover bolt hole, which belongs to the technical field of drill bushings and comprises a drill bushing body, a drill bit hole and positioning components, the drill bit hole is arranged in the center above the drill bushing body, and the positioning components are fixedly arranged on the left side and the right side of the outer surface of the drill bushing body; the two clamping plates are pulled towards the side away from the drill bushing body, the sleeving spring is in a compressed state, then one of the two clamping plates is placed in a central through hole of a transparent cover, the other clamping plate is attached to the outer side surface of the transparent cover, the two clamping plates are loosened, the transparent cover is clamped by the two clamping plates through the elasticity of the sleeving spring, and the drill bushing is used for drilling the transparent cover. When the through cover is clamped by the two clamping plates, it can be guaranteed that the drill bushing body is located in the midpoint of the center through hole and the outer side of the through cover, the effect of positioning the drill bushing body is achieved, after positioning is completed, the drill bushing body is fixed, and it is guaranteed that when a drill bit drills holes in the through cover, the distance between drilled bolt holes and the center through hole of the through cover is equal to the distance between drilled bolt holes and the outer side of the through cover; and the drilling quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of drill sleeves, in particular to a special drill sleeve for machining through-cover bolt holes. Background Art

[0002] The processing of through-cover bolt holes is an important link in mechanical processing, which usually involves process steps such as drilling and reaming. The processing accuracy and quality of through-cover bolt holes have an important impact on the performance and stability of the entire mechanical equipment. Therefore, in the process of through-cover processing, a drill sleeve is usually required to position the drilling drill bit to ensure the accuracy of the drilling position. In the process of through-cover processing, each drilling requires the use of a drill sleeve to position the drilling position to ensure that the drilling position is the same distance from the inner side and the edge of the through-cover to ensure the quality of through-cover processing. The drill sleeve in the prior art does not have a positioning function, and it is necessary to use a tool to measure the diameters of the through-cover and the drill sleeve, and then measure the position of the drill sleeve from the edge or center of the through-cover to determine whether the distance from the drill sleeve to the central through hole of the through-cover and the distance from the edge are the same. This is not only inconvenient to operate, but also difficult to ensure accuracy. Therefore, a special drill sleeve for processing through-cover bolt holes is designed to solve the above problems. Utility Model Content

[0003] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a special drill sleeve for machining a through-cover bolt hole.

[0004] The technical problem to be solved by the utility model is to provide a special drill sleeve for processing a through-cover bolt hole, which can ensure that the drill sleeve body is located in the middle of the central through hole of the through-cover and the outer side, so as to achieve the positioning effect of the drill sleeve body and has high practicality.

[0005] The technical problem to be solved by the utility model is to provide a special drill sleeve for processing a through-cover bolt hole, comprising a drill sleeve body, a drill hole and a positioning assembly, wherein a drill hole is provided at the center of the upper part of the drill sleeve body, and positioning assemblies are fixedly arranged on both sides of the outer surface of the drill sleeve body;

[0006] The positioning assembly includes a horizontal plate, a rectangular groove, a guide rod, a clamping plate and a sleeve spring. The horizontal plate is fixedly arranged below the outer surface of the drill sleeve body. A rectangular groove is opened in the center of the upper surface of the horizontal plate. A guide rod is fixedly arranged in the inner center of the rectangular groove. A clamping plate is penetrated through the guide rod. A sleeve spring is fixedly arranged between the clamping plate and the side of the rectangular groove.

[0007] Preferably, the bottom level of the horizontal plates on the two positioning assemblies is equal to the bottom level of the drill sleeve body.

[0008] Preferably, the extension lines of the guide rods on the two positioning assemblies overlap with each other, and the extension lines of the two guide rods both pass through the axis line of the drill hole.

[0009] Preferably, the sleeve spring is sleeved on the guide rod, and the sleeve spring is fixedly arranged on a side of the rectangular groove away from the drill sleeve body.

[0010] Preferably, the bottom of the splint is pointed, and the bottoms of the two splints are in an "eight" shape.

[0011] Preferably, an expansion hole is provided at the top of the drill hole, and the expansion hole is funnel-shaped with an upper diameter larger than a lower diameter, and a bottom diameter of the expansion hole is equal to the diameter of the drill hole.

[0012] Preferably, a chip removal groove is provided at the bottom of the outer surface of the drill sleeve body, and the chip removal groove runs through the drill hole.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] 1. Before the drill sleeve body is clamped and fixed, the utility model pulls the two clamping plates toward the side away from the drill sleeve body, the sleeve spring is in a compressed state, and then one of the two clamping plates is placed in the central through hole of the transparent cover, and the other clamping plate is attached to the outer surface of the transparent cover. The two clamping plates are loosened, and the elastic force of the sleeve spring causes the two clamping plates to clamp the transparent cover. When the two clamping plates clamp the transparent cover, the drill sleeve body can be ensured to be in the center of the central through hole and the outer side of the transparent cover, so as to achieve the effect of positioning the drill sleeve body. After the positioning is completed, the drill sleeve body is fixed to ensure that when the drill bit drills a hole in the transparent cover, the distance between the drilled bolt hole and the central through hole of the transparent cover and the outer side of the transparent cover is the same, so as to ensure the quality of the drilling.

[0015] 2. The utility model is provided with an expansion hole. When the drill bit position and the drill hole are not in the same straight line, the drill bit is inserted into the expansion hole on the drill hole. The expansion hole guides the drill bit to the center of the drill hole, thereby achieving the effect of correcting the drill bit position.

[0016] 3. The utility model is provided with a chip discharge groove, which facilitates the discharge of chips generated by the drill bit during drilling, so that the drill sleeve body can be attached to the surface of the transparent cover for drilling, thereby increasing the drilling accuracy of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic top view of the overall structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the positioning component of the utility model.

[0021] Figure 4 It is a schematic diagram of the vertical cutting structure of the drill sleeve body of the utility model.

[0022] [reference numerals]

[0023] 1. Drill sleeve body; 2. Drill hole; 201. Expansion hole; 3. Horizontal plate; 301. Rectangular groove; 302. Guide rod; 303. Clamp; 304. Sleeve spring; 4. Chip removal groove. DETAILED DESCRIPTION

[0024] Example:

[0025] like Figure 1-Figure 4 As shown, an embodiment of the utility model provides a special drill sleeve for machining a through-cover bolt hole, comprising a drill sleeve body 1, a drill hole 2 and a positioning assembly. The drill hole 2 is provided at the center of the upper portion of the drill sleeve body 1, and positioning assemblies are fixedly provided on both left and right sides of the outer surface of the drill sleeve body 1;

[0026] The positioning assembly includes a horizontal plate 3, a rectangular groove 301, a guide rod 302, a clamping plate 303 and a sleeve spring 304. The horizontal plate 3 is fixedly arranged below the outer surface of the drill sleeve body 1. A rectangular groove 301 is opened in the center of the upper surface of the horizontal plate 3. A guide rod 302 is fixedly arranged in the inner center of the rectangular groove 301. A clamping plate 303 is penetrated through the guide rod 302. A sleeve spring 304 is fixedly arranged between the clamping plate 303 and the side of the rectangular groove 301.

[0027] During actual use, first fix the transparent cover on the clamp used for drilling to fix the transparent cover. Before fixing the drill sleeve body 1, pull the two clamps 303 to the side away from the drill sleeve body 1, and the sleeve spring 304 is in a compressed state. Then, put one of the two clamps 303 into the central through hole of the transparent cover, and stick the other clamp 303 to the outer surface of the transparent cover. Loosen the two clamps 303, and the elastic force of the sleeve spring 304 makes the two clamps 303 clamp the transparent cover. When the two clamps 303 clamp the transparent cover, it can ensure that the drill sleeve body 1 is in the center of the central through hole and the outer side of the transparent cover, so as to achieve the positioning effect of the drill sleeve body 1. After the positioning is completed, the drill sleeve body 1 is fixed again to ensure that when the drill bit drills a hole in the transparent cover, the drilled bolt hole is at the same distance from the central through hole of the transparent cover and the outer side of the transparent cover, so as to ensure the drilling quality.

[0028] In this embodiment, the bottom level of the horizontal plates 3 on the two positioning components is equal to the bottom level of the drill sleeve body 1. When the positioning components clamp the transparent cover, the drill sleeve body 1 is attached to the upper surface of the transparent cover.

[0029] In this embodiment, the extension lines of the guide rods 302 on the two positioning assemblies overlap each other, and the extension lines of the two guide rods 302 both pass through the axis of the drill hole 2, ensuring that the drill sleeve body 1 is located between the two positioning assemblies.

[0030] In this embodiment, the sleeve spring 304 is sleeved on the guide rod 302 , and the sleeve spring 304 is fixedly disposed on a side of the rectangular groove 301 away from the drill sleeve body 1 .

[0031] In this embodiment, the bottom of the clamping plate 303 is pointed, and the bottoms of the two clamping plates 303 are in an "eight" shape, which makes it easier for the two clamping plates 303 to clamp the transparent cover.

[0032] In this embodiment, an expansion hole 201 is provided at the top of the drill hole 2. The expansion hole 201 is funnel-shaped with an upper diameter larger than a lower diameter, and a bottom diameter of the expansion hole 201 is equal to the diameter of the drill hole 2, so as to facilitate correction of the drill position.

[0033] By providing the expansion hole 201, when the drill bit position is not in the same straight line as the drill hole 2, the drill bit is inserted into the expansion hole 201 on the drill hole 2, and the expansion hole 201 guides the drill bit to the center of the drill hole 2, thereby achieving the effect of correcting the drill bit position.

[0034] In this embodiment, a chip removal groove 4 is formed at the bottom of the outer surface of the drill sleeve body 1 , and the chip removal groove 4 runs through the drill hole 2 .

[0035] By providing the chip removal groove 4, the debris generated by the drill bit drilling can be easily discharged from the chip removal groove 4, so that the drill sleeve body 1 can be attached to the surface of the transparent cover for drilling, thereby increasing the drilling accuracy of the drill bit.

[0036] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A special drill sleeve for machining through-cover bolt holes, characterized in that: The drill sleeve comprises a drill bit body (1), a drill hole (2) and a positioning assembly, wherein the drill bit hole (2) is provided at the center of the upper portion of the drill sleeve body (1), and positioning assemblies are fixedly arranged on both left and right sides of the outer surface of the drill sleeve body (1); The positioning assembly comprises a horizontal plate (3), a rectangular groove (301), a guide rod (302), a clamping plate (303) and a sleeve spring (304); the horizontal plate (3) is fixedly arranged below the outer surface of the drill sleeve body (1); a rectangular groove (301) is provided at the center of the upper surface of the horizontal plate (3); a guide rod (302) is fixedly arranged at the inner center of the rectangular groove (301); a clamping plate (303) is penetrated through the guide rod (302); and a sleeve spring (304) is fixedly arranged between the clamping plate (303) and the side surface of the rectangular groove (301).

2. The special drill sleeve for machining cover-through bolt holes according to claim 1, characterized in that: The bottom level of the horizontal plates (3) on the two positioning components is equal to the bottom level of the drill sleeve body (1).

3. The special drill sleeve for machining cover-through bolt holes according to claim 2, characterized in that: The extension lines of the guide rods (302) on the two positioning assemblies overlap each other, and the extension lines of the two guide rods (302) both pass through the axis line of the drill hole (2).

4. The special drill sleeve for machining cover-through bolt holes according to claim 3, characterized in that: The sleeve spring (304) is sleeved on the guide rod (302), and the sleeve spring (304) is fixedly arranged on a side of the rectangular groove (301) away from the drill sleeve body (1).

5. The special drill sleeve for machining cover-through bolt holes according to claim 1, characterized in that: The bottom of the clamping plate (303) is pointed, and the bottoms of the two clamping plates (303) are in an "eight" shape.

6. The special drill sleeve for machining cover-through bolt holes according to claim 5, characterized in that: An expansion hole (201) is provided at the top of the drill hole (2), and the expansion hole (201) is funnel-shaped with an upper diameter larger than a lower diameter, and a bottom diameter of the expansion hole (201) is equal to the diameter of the drill hole (2).

7. The special drill sleeve for machining cover-through bolt holes according to claim 5, characterized in that: A chip removal groove (4) is provided at the bottom of the outer surface of the drill sleeve body (1), and the chip removal groove (4) penetrates the drill hole (2).

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