Universal drill jig capable of adjusting drilling position and diameter

Abstract

The utility model belongs to the technical field of machining equipment facilities, and provides a universal drill jig capable of adjusting drilling position and diameter size, which comprises a base, a positioning block and a clamping block, a workpiece positioning groove is arranged on the lateral side of the positioning block, the workpiece positioning groove is V-shaped, and an opening of the workpiece positioning groove faces the clamping block. The clamping block is provided with a plurality of first screw holes and clamping screws in the direction opposite to the workpiece positioning groove, a drill plate is arranged at the top of the positioning block, one side of the drill plate is suspended above the workpiece positioning groove, at least four mounting holes distributed at intervals are formed in the position, close to the edge of the drill plate, of the drill plate, and drill plate sleeves are arranged in the mounting holes. A limiting plate is arranged on the side of the positioning block, a second screw hole and a limiting screw are arranged on the limiting plate, and the end of the limiting screw is used for limiting the end of the workpiece. The clamp is reasonable in design, simple in structure, convenient to position and clamp, capable of controlling hole positions and hole diameters, high in practicability and suitable for large-scale popularization.

Description

Technical Field

[0001] This utility model belongs to the technical field of machining equipment and facilities, and in particular relates to a universal drill jig with adjustable drilling position and diameter. Background Technology

[0002] Traditional bench drill jigs are typically designed to machine internal holes in specific locations with fixed diameters. In new product development, this often means redesigning the jig's style and dimensions, leading to extended development cycles. Furthermore, if errors occur in the jig's dimensions, they are often irreversible, necessitating a complete jig remanufacturing in most cases, significantly impacting production schedules.

[0003] Existing patent CN207043387U discloses a universal drill jig, including a clamping component and a positioning component. The positioning component includes a main support plate corresponding to the clamping component, a positioning mandrel detachably mounted on the upright body of the main support plate, and a limiting block mounted on the upright body and corresponding to and cooperating with the positioning mandrel. The upper part of the main support plate is provided with a drill hole corresponding to the positioning mandrel, and a drill sleeve is provided on the drill hole. The positioning mandrel has a drill through slot corresponding to and cooperating with the drill sleeve. When this drill jig is used for different parts, in addition to appropriately replacing the drill sleeve, the positioning mandrel also needs to be replaced, and a clamping drive component with a driving force is also required, resulting in a relatively high cost. Utility Model Content

[0004] This utility model addresses the technical problems existing in the aforementioned general-purpose drill jigs by proposing a general-purpose drill jig with adjustable drilling position and diameter that is reasonably designed, simple in structure, low in cost, easy to position and clamp, and highly practical.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a universal drill jig with adjustable drilling position and diameter, including a base, on which a positioning block and a clamping block are provided. The side of the positioning block is provided with a workpiece positioning groove, which is V-shaped and its opening faces the clamping block. The clamping block is provided with a plurality of first screw holes in the direction opposite to the workpiece positioning groove. A clamping screw is provided in the first screw hole, and the end of the clamping screw is used to clamp the workpiece together with the workpiece positioning groove. A drill template is provided on the top of the positioning block. One side of the drill template is suspended above the workpiece positioning groove, and at least four spaced mounting holes are provided near the edge of the drill template. A drill jig sleeve is provided in the mounting hole. A limit plate is provided on the side of the positioning block, and a second screw hole is provided on the limit plate. A limit screw is provided in the second screw hole, and the end of the limit screw is used to limit the end of the workpiece.

[0006] Preferably, the bottom of the base is provided with a pair of longitudinal adjustment holes, the direction of which is consistent with the width direction of the base. One of the longitudinal adjustment holes is provided with a pair of first longitudinal adjustment screws connecting the positioning block and the base, and the other longitudinal adjustment hole is provided with a pair of second longitudinal adjustment screws connecting the clamping block and the base.

[0007] Preferably, the drill template is provided with a pair of first lateral adjustment holes, the direction of the first lateral adjustment holes is consistent with the length direction of the base, and a first lateral adjustment screw connecting the drill template and the positioning block is provided in the first lateral adjustment hole.

[0008] Preferably, the longitudinal section of the limiting plate is L-shaped, and a second lateral adjustment hole is provided on the limiting plate. The direction of the second lateral adjustment hole is consistent with the length direction of the base, and a second lateral adjustment screw is provided in the second lateral adjustment hole.

[0009] Preferably, the workpiece positioning groove has a rectangular countersunk opening at its root.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] This utility model provides a universal drill jig with adjustable drilling position and diameter. Utilizing a V-shaped workpiece positioning groove, it can clamp workpieces of various specifications and models. The clamping screws further enhance workpiece stability, and the limiting screws allow for fine-tuning of the relative position between the workpiece and the drill template. The drill jig sleeve on the drill template can be selected according to the required hole diameter. This device is rationally designed, simple in structure, and easy to position and clamp. It enables control of hole position and diameter, and is highly practical, making it suitable for large-scale promotion. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 An isometric view of a universal drill jig with adjustable drilling position and diameter provided for an embodiment;

[0014] Figure 2 A top view of a universal drill jig with adjustable drilling position and diameter provided for an embodiment;

[0015] Figure 3 A bottom view of a universal drill jig with adjustable drilling position and diameter provided for an embodiment;

[0016] Figure 4 A cross-sectional view of a universal drill jig with adjustable drilling position and diameter provided for an embodiment;

[0017] In the above figures, 1. Workpiece; 2. Base; 21. Longitudinal adjustment hole; 3. Positioning block; 31. Workpiece positioning groove; 32. Rectangular countersunk edge; 4. Clamping block; 41. First screw hole; 5. Clamping screw; 6. Drill template; 61. Mounting hole; 62. First transverse adjustment hole; 7. Drill template sleeve; 8. Limiting plate; 81. Second screw hole; 82. Second transverse adjustment hole; 9. Limiting screw; 10. First longitudinal adjustment screw; 11. Second longitudinal adjustment screw; 12. First transverse adjustment screw; 13. Second transverse adjustment screw. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Examples, such as Figures 1-4As shown, the present invention provides a universal drill jig with adjustable drilling position and diameter, including a base 2. The base 2 is a rectangular plate and has positioning holes for mounting bolts near the corner of the plate. The base 2 can be fixed to the drilling platform / slide of the drilling machine by bolts. Furthermore, the base 2 is provided with a positioning block 3 and a clamping block 4. The side of the positioning block 3 is provided with a workpiece positioning groove 31. The workpiece positioning groove 31 is V-shaped and its opening faces the clamping block 4. The clamping block 4 is provided with a plurality of first screw holes 41 in the direction opposite to the workpiece positioning groove 31. A clamping screw 5 is provided in the first screw hole 41. The end of the clamping screw 5 is used to clamp the workpiece 1 together with the workpiece positioning groove 31. The top of the positioning block 3 is provided with a drill template 6. One side of the drill template 6 is suspended above the workpiece positioning groove 31 and at least four spaced mounting holes 61 are provided near the edge of the drill template 6. A drill die sleeve 7 is provided in the mounting hole 61. A limit plate 8 is provided on the side of the positioning block 3. A second screw hole 81 is provided on the limit plate 8. A limit screw 9 is provided in the second screw hole 81. The end of the limit screw 9 is used to limit the end of the workpiece 1.

[0021] Specifically, the V-shaped workpiece positioning groove 31 can clamp workpieces of various specifications and models. The two groove surfaces of the workpiece positioning groove 31 can directly contact the axial side of the workpiece 1. The clamping screws 5 on the clamping block 4 increase the clamping tightness of the workpiece and improve its stability. The limiting screws 9 can fine-tune the relative position of the workpiece 1 and the drill template 6 before the workpiece is completely fixed, until the workpiece enters its designed drilling position. The drill template 6 is used to provide the suspended hole position, i.e., the mounting hole 61, and the specifications of the drill jig sleeve 7 can be selected according to the size of the drilling requirements. Therefore, this device can control the hole position and diameter while improving positioning and clamping performance and convenience. It is suitable for workpieces of various specifications and solves the technical problems of fixed drilling specifications and single and unadjustable position of traditional special drill jig tooling. After the workpiece is radially positioned on the positioning block 3, the limiting screws 9 perform axial positioning, the clamping screws clamp the workpiece, the bench drill power is turned on, and the bench drill rocker arm is pressed down to drill through the drill jig sleeve 7, thereby completing the drilling operation.

[0022] To improve the utilization rate of this device, considering some workpieces that are long or whose holes are far from the limiting plate 8, the bottom of the base 2 provided by this utility model is provided with a pair of longitudinal adjustment holes 21. The direction of the longitudinal adjustment holes 21 is consistent with the width direction of the base 2. A pair of first longitudinal adjustment screws 10 connecting the positioning block 3 and the base 2 are provided in one of the longitudinal adjustment holes 21, and a pair of second longitudinal adjustment screws 11 connecting the clamping block 4 and the base 2 are provided in the other longitudinal adjustment hole 21. In this way, by loosening the first longitudinal adjusting screw 10 and moving the positioning block 3 along the length of the longitudinal adjusting hole 21, the position of the drill template 6 and the drill sleeve 7 can be adjusted. After adjustment, the first longitudinal adjusting screw 10 is tightened again. Similarly, by loosening the second longitudinal adjusting screw 11 and moving the clamping block 4 along the length of the longitudinal adjusting hole 21, the position of the clamping block 4 and the clamping screw 5 can be adjusted. After adjustment, the second longitudinal adjusting screw 11 is tightened again. In addition, the clamping block 4 provides multiple first screw holes 41 for selecting clamping screws 5, so the drilling hole position and clamping screw 5 can be adjusted according to the actual clamping requirements of the workpiece, thereby improving the utilization rate of this device.

[0023] Considering that some workpieces with larger diameters will be more biased towards the clamping block 4 in the vertical diameter plane of the workpiece positioning groove 31, the drill template 6 provided by this utility model is provided with a pair of first lateral adjustment holes 62. The direction of the first lateral adjustment holes 62 is consistent with the length direction of the base 2. A first lateral adjustment screw 12 connecting the drill template 6 and the positioning block 3 is provided in the first lateral adjustment hole 62. By loosening the first lateral adjustment screw 12 and moving the drill template 6 along the length direction of the first lateral adjustment hole 62, the overhang length of the drill template 6 relative to the positioning block 3 can be adjusted until the core of the drill jig sleeve 7 is on the same plane as the vertical diameter plane of the workpiece, thereby meeting the drilling requirements and helping to ensure the drilling quality.

[0024] To ensure that the center of the limiting screw 9 is coaxial with the axis of the workpiece with a larger diameter, the limiting plate 8 provided by this utility model has an L-shaped longitudinal section. The limiting plate 8 is provided with a second transverse adjustment hole 82, the direction of which is consistent with the length direction of the base 2. A second transverse adjustment screw 13 is installed in the second transverse adjustment hole 82. In this way, by adjusting the relative position of the limiting plate 8 and the base 2 along the length direction of the second transverse adjustment hole 82, the center of the limiting screw 9 can be adjusted until it is coaxial with the axis of the workpiece. This improves the uniformity of force distribution and the limiting effect of the limiting screw 9 on the workpiece, and helps ensure the stability of the workpiece during drilling.

[0025] Furthermore, in this invention, apart from the limiting screw 9 being an M12 screw, other screws are preferably M8 screws. The M12 screw can meet the contact area requirements of the workpiece end face, which is beneficial to improving the axial positioning effect of the workpiece 1. The other screws mainly serve a connecting function, and their diameter specifications do not need to be too large. Moreover, the clamping screw 5 is in line contact with the workpiece 1, which is sufficient to meet the clamping requirements.

[0026] The workpiece positioning groove 31 provided by this utility model has a rectangular countersunk opening 32 at its root, which has a certain heat dissipation function.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A universal drill jig capable of adjusting the position and diameter of a drill hole, comprising a base, a positioning block and a clamping block are arranged on the base, characterized in that, The side of the positioning block is provided with a workpiece positioning groove, which is V-shaped and has an opening facing the clamping block. The clamping block is provided with a plurality of first screw holes in the direction opposite to the workpiece positioning groove, and a clamping screw is arranged in each first screw hole. The end of the clamping screw is used to clamp the workpiece together with the workpiece positioning groove. The top of the positioning block is provided with a drill jig plate. One side of the drill jig plate is suspended above the workpiece positioning groove, and at least four spaced installation holes are arranged near the edge of the drill jig plate. A drill jig sleeve is arranged in each installation hole. A limiting plate is arranged on the side of the positioning block. A second screw hole is arranged on the limiting plate, and a limiting screw is arranged in the second screw hole. The end of the limiting screw is used to limit the end of the workpiece.

2. The universal drill jig of claim 1, wherein, The bottom of the base is provided with a pair of longitudinal adjustment holes, which are consistent with the width direction of the base. One of the longitudinal adjustment holes is provided with a pair of first longitudinal adjustment screws for connecting the positioning block and the base. The other longitudinal adjustment hole is provided with a pair of second longitudinal adjustment screws for connecting the clamping block and the base.

3. The universal drill jig of adjustable hole location and diameter size according to claim 2, wherein, The drill jig plate is provided with a pair of first transverse adjustment holes, which are consistent with the length direction of the base. The first transverse adjustment holes are provided with first transverse adjustment screws for connecting the drill jig plate and the positioning block.

4. The universal drill jig of claim 3, wherein, The longitudinal section of the limiting plate is L-shaped. The limiting plate is provided with a second transverse adjustment hole, which is consistent with the length direction of the base. The second transverse adjustment hole is provided with a second transverse adjustment screw.

5. The universal drill jig of claim 1, wherein, The root of the workpiece positioning groove is provided with a rectangular sink.

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