Irregular curved surface bench drilling positioning device

Abstract

The utility model provides a kind of irregular curved surface bench work hole positioning device, including workbench, sliding member, compression screw, compression block, screw and locating peg two;The workbench top is provided with chute;The sliding member is slidably installed at workbench top;The middle part of the sliding member is provided with strip groove;The compression screw is sequentially passed strip groove and chute on the sliding member and is connected with compression block, for fixing the relative position of sliding member;The screw is installed in the left end of sliding member;The number of the second locating peg is three, installed in the top of screw, and the three second locating pegs are not on the same straight line;The device is formed by three second locating pegs not on the same straight line three-point positioning structure, using the principle of three-point to determine unique plane, can form stable support to small curved surface parts, effectively avoid displacement or shaking of parts during drilling process, protect the integrity of parts, wide range of application, low cost.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to a positioning device for irregular curved surface bench hole making. Background Technology

[0002] In fields such as mechanical manufacturing and aerospace component processing, drilling of small curved surface parts is frequently involved. These parts are small in size (typically 5-30mm) and have irregular curved shapes, making it difficult to guarantee drilling accuracy using traditional positioning methods. Currently, the industry mostly uses manual hand-held parts or simple jigs for positioning during drilling, which presents the following problems: Firstly, when manually holding the part, hand tremors can easily cause the drilling position to shift, and uneven stress on the curved surface can lead to part deformation, severely affecting processing quality; secondly, existing simple jigs are mostly fixed structures, unable to flexibly adjust the positioning points according to different curved surface shapes, resulting in poor versatility. For parts with complex curvature variations, custom-made jigs are often required, increasing production costs and processing time. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a positioning device for irregular curved surfaces that can be quickly positioned for fitter drilling, suitable for parts with various minute curved surfaces.

[0004] The objective of this utility model is achieved through the following technical solution: A positioning device for irregular curved surface hole making in a fitter's workshop includes a worktable, a sliding component, a clamping screw, a clamping block, screws, and two positioning pins. The top of the worktable has a sliding groove. The sliding component is slidably mounted on the top of the worktable. A strip-shaped groove is provided in the middle of the sliding component. The clamping screw passes sequentially through the strip-shaped groove and the sliding groove on the sliding component and connects to the clamping block to fix the relative position of the sliding component. The screw is installed on the left end of the sliding component. Three positioning pins are installed on top of the screws, and the three positioning pins are not on the same straight line. An anti-slip pad is provided at the bottom of the worktable. The anti-slip pad is made of rubber and has a grid-like texture on its surface. A scale line is provided on the top of the sliding component. The scale lines are distributed along the length of the groove, and the minimum scale value is 0.5mm. The positioning device also includes a level, which is embedded in the front end of the worktable to detect the levelness of the worktable. The positioning device also includes three positioning pins, which are installed on the left end of the sliding component and are not on the same straight line. The top of both positioning pins one and two positioning pins is provided with a hemispherical protrusion, and the surface of the protrusion is polished with a roughness of no more than 0.8μm. Positioning pins one and two positioning pins are made of high-strength alloy steel. The sliding component has symmetrically distributed handle grooves on both sides, and the inner wall of the handle groove is covered with a silicone anti-slip layer with a thickness of 2-3mm and a diagonal anti-slip texture pressed on the surface.

[0005] The beneficial effects of this utility model are: This device uses three positioning pins that are not on the same straight line to form a three-point positioning structure. Utilizing the principle that three points determine a unique plane, it can provide stable support for small curved parts, effectively preventing displacement or shaking of the parts during drilling, significantly improving the accuracy of hole positioning, and is convenient and flexible to operate. It avoids the use of clamping fixtures, protects the integrity of the parts, has a wide range of applications, and is low in cost. Attached Figure Description

[0006] The present invention will now be described in further detail with reference to the accompanying drawings.

[0007] Figure 1 This is a structural diagram of the present invention.

[0008] Figure 2 This is a partial schematic diagram of the present invention.

[0009] Figure 3 This is a schematic diagram of the working process of this utility model.

[0010] As shown in the figure: 1-Workbench; 11-Slide groove; 2-Sliding component; 21-Positioning pin one; 3-Clamping screw; 31-Clamping block; 4-Screw; 41-Positioning pin two; 5-Part. Detailed Implementation

[0011] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0012] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0013] In the description of this utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be noted that the terms "comprising," "including," or any other variations are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0014] like Figure 1-3 As shown, an irregular curved surface fitter hole positioning device includes a level, a worktable 1, a sliding component 2, a positioning pin 21, a clamping screw 3, a clamping block 31, a screw 4, and a positioning pin 41. The top of the workbench 1 is provided with a sliding groove 11; the bottom of the workbench 1 is provided with an anti-slip pad; the anti-slip pad is made of rubber and has a grid pattern on its surface; the level is embedded in the front end face of the workbench 1 and is used to detect the levelness of the workbench 1.

[0015] The sliding member 2 is slidably mounted on the top of the workbench 1; a strip groove is provided in the middle of the sliding member 2; a scale line is provided on the top of the sliding member 2; the scale line is distributed along the length of the strip groove, and the minimum scale value is 0.5mm; symmetrically distributed handle grooves are provided on both sides of the sliding member 2, and a silicone anti-slip layer is pasted on the inner wall of the handle groove. The silicone layer is 2-3mm thick and has a diagonal anti-slip texture pressed on its surface.

[0016] The clamping screw 3 passes through the strip groove and slide groove 11 on the sliding member 2 in sequence and is connected to the clamping block 31 to fix the relative position of the sliding member 2.

[0017] The screw 4 is installed on the left end of the slider 2.

[0018] The number of positioning pins 41 is three, which are installed on the top of screw 4, and the three positioning pins 41 are not on the same straight line.

[0019] The part 5 can be fixed directly by the positioning pins 21 without using screws 4; there are three positioning pins 21, which are installed on the left end of the sliding part 2, and the three positioning pins 21 are not on the same straight line.

[0020] The top of both positioning pin 21 and positioning pin 41 is provided with a hemispherical protrusion, and the surface of the protrusion is polished with a roughness of no more than 0.8μm; positioning pin 21 and positioning pin 41 are made of high-strength alloy steel.

[0021] The working steps of this utility model are as follows: This device achieves precise positioning and hole drilling operations for micro-curved surface parts based on the geometric principle that three points determine a unique plane. First, according to the size and surface characteristics of the micro-curved surface part to be processed, the clamping screw 3 is loosened, and the sliding part 2 is pushed to slide along the slide groove 11 on the top of the worktable 1. At the same time, by adjusting the position of the clamping screw 3 in the strip groove of the sliding part 2, the sliding part 2 is placed in the approximate area for processing the part. Then, the clamping screw 3 is tightened, and the relative position of the sliding part 2 is fixed by the friction between the clamping block 31 and the worktable 1, thus completing the initial positioning adjustment.

[0022] Subsequently, part 5 is placed on three positioning pins 41. Since the three positioning pins 41 are not on the same straight line, their tops naturally form three contact points with the curved surface of the part. Under the action of the part's own weight, the three contact points are tightly attached to the curved surface of part 5. Based on the three-point fixing principle, part 5 is stably constrained in a single spatial position and cannot be translated or rotated, thus achieving precise positioning. Once the positioning is complete, the operator can begin drilling. During the drilling process, the anti-slip pads at the bottom of the workbench 1 prevent the entire device from sliding, and the level ensures that the workbench 1 is level, avoiding deviations in the drilling angle due to device tilt. If it is necessary to change to parts of different specifications, simply repeat the steps of adjusting the position of the sliding part 2 and placing the parts to quickly complete the positioning switch and adapt to the processing needs of various parts.

[0023] The scope of protection of this utility model is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A positioning device for making holes in irregular curved surfaces by fitter, characterized in that: The device includes a worktable (1), a sliding member (2), a clamping screw (3), a clamping block (31), a screw (4), and a second positioning pin (41). The top of the worktable (1) is provided with a sliding groove (11). The sliding member (2) is slidably installed on the top of the worktable (1). The middle part of the sliding member (2) is provided with a strip groove. The clamping screw (3) passes through the strip groove and the sliding groove (11) on the sliding member (2) in sequence and connects with the clamping block (31) to fix the relative position of the sliding member (2). The screw (4) is installed on the left end of the sliding member (2). There are three second positioning pins (41), which are installed on the top of the screw (4), and the three second positioning pins (41) are not on the same straight line.

2. The irregular curved surface fitter's hole-making positioning device according to claim 1, characterized in that: The bottom of the workbench (1) is provided with an anti-slip mat; the anti-slip mat is made of rubber and has a grid pattern on its surface.

3. The irregular curved surface fitter's hole-making positioning device according to claim 1, characterized in that: The top of the sliding member (2) is provided with scale lines; the scale lines are distributed along the length of the strip groove, and the minimum scale value is 0.5mm.

4. The irregular curved surface fitter's hole-making positioning device according to claim 1, characterized in that: It also includes a level, which is embedded in the front end face of the workbench (1) and is used to detect the levelness of the workbench (1).

5. The irregular curved surface fitter's hole-making positioning device according to claim 1, characterized in that: It also includes positioning pins (21); there are three positioning pins (21), which are installed on the left end of the sliding member (2), and the three positioning pins (21) are not on the same straight line.

6. The irregular curved surface fitter's hole-making positioning device according to claim 1, characterized in that: The top of both positioning pin one (21) and positioning pin two (41) are provided with hemispherical protrusions, and the surface of the protrusions is polished with a roughness of no more than 0.8μm.

7. The irregular curved surface fitter's hole-making positioning device according to claim 1, characterized in that: The positioning pin one (21) and positioning pin two (41) are made of high-strength alloy steel.

8. The irregular curved surface fitter's hole-making positioning device according to claim 1, characterized in that: The sliding member (2) has symmetrically distributed handle grooves on both sides. The inner wall of the handle groove is covered with a silicone anti-slip layer with a thickness of 2-3mm and a diagonal anti-slip texture pressed on the surface.

Images