Multifunctional positioning and clamping device for drill row residues

Abstract

The application discloses a multifunctional positioning and clamping device for drilling residual material, which comprises a body, the body is provided with a guide hole, a first positioning hole and a pressing hole, the axis of the guide hole, the axis of the first positioning hole and the axis of the pressing hole are arranged in the same plane, the diameter of the guide hole, the diameter of the first positioning hole and the diameter of the pressing hole are equal, the first positioning hole is connected with a first positioning pin, the pressing hole is connected with an expansion bolt, the first positioning pin is in interference fit with the first positioning hole, and the expansion bolt is detachably connected with the pressing hole.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical engineering, and particularly relates to a multifunctional positioning and clamping device for drilling and removing excess material. BACKGROUND

[0002] In the process of machining, the milling cutter or numerical control milling cutter is wrapped by a large amount of excess material. Although compressed air is blown, as the milling depth increases, the removal of the excess material becomes very difficult, and the cutter is easily damaged. In addition, at the moment when the peripheral waste falls off, the cutting edge of the cutter is easily damaged. In order to prevent accidents, the numerical control milling is stopped when there is 5mm of excess material left, and then the milling is completed by drilling and removing the peripheral waste. In order to improve the efficiency of numerical control milling and avoid the final machining, the numerical control milling is usually performed in advance, or the numerical control milling is performed after the line is drawn by a bench worker. A large amount of the peripheral waste is removed by drilling. However, when the drill is used to remove the peripheral waste, the drill is easily deviated, and the connected barriers are formed. The drill is difficult to be removed by tapping, and only the hole is expanded and the drill is slowly drilled. The work is doubled, the efficiency is low, and the operation is not safe. SUMMARY

[0003] In view of the problems that the numerical control milling cutter is wrapped by the excess material and the cutter is damaged when the excess material falls off, the internal stress and the hardening layer are easily formed in the alloy steel material by numerical control plasma or manual gas cutting, and the product quality and the subsequent machining difficulty are seriously affected, and in view of the problems that the drill is easily deviated when the drill is used to remove the peripheral waste, the connected barriers are formed, the drill is easily deviated and clamped when the hole is expanded and the drill is slowly drilled, the work is doubled, the efficiency is low, and the operation is not safe, the technical scheme of the present application is as follows:

[0004] A multifunctional positioning and clamping device for drilling and removing excess material includes a body, the body is provided with a guide hole, a first positioning hole and a pressing hole, the axis of the guide hole, the axis of the first positioning hole and the axis of the pressing hole are coplanar, and the diameter of the guide hole, the diameter of the first positioning hole and the diameter of the pressing hole are equal.

[0005] The first positioning hole is connected with a first positioning pin, and the pressing hole is connected with an expansion bolt.

[0006] The first positioning pin and the first positioning hole are in interference fit.

[0007] The expansion bolt is detachably connected to the pressing hole.

[0008] By arranging the clamping device, the problem that the drill is easily deviated when the drill is used to remove the peripheral waste is effectively solved.

[0009] Further, the first positioning hole is communicated with the pressing hole, the first positioning hole is communicated with the guide hole, the hole distance of the guide hole is smaller than the hole diameter of the guide hole by 1-1.5 mm, the hole distance of the first positioning hole and the pressing hole is equal to the hole distance of the first positioning hole and the guide hole, the first positioning pin is a special-shaped positioning pin, the side wall of the first positioning pin is provided with two circular-arc-shaped mounting surfaces, the two mounting surfaces are symmetrically distributed with the axis of the first positioning pin as the center, the mounting surface is a circular-arc surface with the same diameter as the guide hole, one end of the first positioning pin is flush with the surface of the body, and the other end of the first positioning pin is protruded from the first positioning hole.

[0010] Further, the body is also provided with a second positioning hole, the axis of the second positioning hole, the axis of the guide hole and the axis of the first positioning hole are coplanar, the first positioning hole is arranged between the guide hole and the second positioning hole, the pressing hole is arranged on the side of the second positioning hole away from the first positioning hole, the second positioning hole and the first positioning hole are communicated, the first positioning hole is communicated with the guide hole, the two positioning holes are positioned by using two positioning pins and one-face-two-pin positioning method, the diameter of the second positioning hole is equal to the diameter of the guide hole, the hole distance between the guide hole and the first positioning hole is 1-1.5mm smaller than the diameter of the guide hole, the hole distance between the first positioning hole and the second positioning hole is 1-1.5mm smaller than the diameter of the guide hole, so that the hole distance between the first positioning hole and the second positioning hole and the guide hole is slightly smaller than the diameter, facilitating subsequent punching, the hole distance between the pressing hole and the second positioning hole is an integer multiple of the hole distance between the guide hole and the first positioning hole, the hole distance between the pressing hole and the second positioning hole is 2 or 3 times the hole distance between the guide hole and the first positioning hole, since the expansion bolt needs to be connected in the hole that has been punched, the pressing hole is designed to be an integer multiple of the hole distance between the first positioning hole and the second positioning hole, facilitating connection, the second positioning hole is connected with a second positioning pin, the second positioning pin and the second positioning hole are in interference fit, the first positioning pin is a special-shaped positioning pin, the second positioning pin is a cylindrical positioning pin, the side wall of the first positioning pin is provided with two circular-arc-shaped mounting surfaces, the two mounting surfaces are distributed in axial symmetry with the axis of the first positioning pin as the center, the mounting surface is a circular-arc surface with the same diameter as the guide hole, the two ends of the first positioning pin are protruded from the first positioning hole and the protruding lengths of the two ends are the same. It is used for reverse positioning at the inclined surface or arc position, one end of the second positioning pin is flush with the surface of the body, the other end of the second positioning pin is protruded from the second positioning hole, one side of the second positioning pin is arranged in parallel with the surface of the body, by arranging the body in normal or reverse, one hole or multiple holes on the workpiece surface can be adapted, the side of the first positioning pin and the second positioning pin close to each other is provided with a flat table, during installation, the flat table is flush with the body, by arranging the flat table, mutual interference of the two positioning pins during installation is avoided, and installation efficiency is improved, the first positioning pin and the second positioning pin can be modified by using a standard cylindrical positioning pin, the position of the second positioning pin can also be installed and modified to be positioned and clamped by an expansion bolt. The nut of the standard expansion bolt is replaced by a lifting ring nut or a triangular lifting ring nut, and the open sleeve is reprocessed and replaced by a freely retractable open elastic sleeve. Due to the influence of burrs, the positioning part of the special-shaped positioning pin and the cylindrical positioning pin inserted into the hole is processed into a flat table for easy insertion and extraction.

[0011] Further, it further includes an auxiliary pressing part, the auxiliary pressing part includes a pressing plate and an expansion bolt connected to the pressing plate, a long slot is arranged in the middle of the pressing plate, and the expansion bolt is installed through the long slot, by arranging the auxiliary pressing part, when there is only one hole on the workpiece, the body is assisted and pressed by using the auxiliary pressing part.

[0012] The present application guides the drill bit by increasing the positioning and clamping device, avoids the drill bit from deviating in the process of punching, and can meet the use of various scenes through the cooperation of the positioning and clamping device. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of embodiment 1 Figure 1 ;

[0014] Figure 2 is a structural schematic diagram of embodiment 1 Figure 2 ;

[0015] Figure 3 is a structural schematic diagram of embodiment 1 Figure 3 ;

[0016] Figure 4 is a structural schematic diagram of embodiment 2 Figure 1 ;

[0017] Figure 5 is a structural schematic diagram of embodiment 2 Figure 2 ;

[0018] Figure 6 is a structural schematic diagram of embodiment 2 Figure 3 ;

[0019] Figure 7 is Figure 4 a structural schematic diagram of the first positioning pin in the present application;

[0020] Figure 8 is a structural schematic diagram of the auxiliary pressing member in the present application.

[0021] 1 - body; 2 - first positioning pin; 21 - flat table; 22 - mounting surface; 3 - second positioning pin; 4 - screw; 5 - expansion bolt; 6 - open elastic sleeve; 8 - lifting ring nut; 9 - guide hole; 10 - pressing plate; 11 - long hole. DETAILED DESCRIPTION

[0022] The present application will be further described below in conjunction with the drawings and specific embodiments. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation of the present application. The functional details disclosed in the present application are only used to describe the example embodiments of the present application. However, the present application can be embodied in many alternative forms, and should not be understood as being limited in the embodiments described in the present application.

[0023] It should be understood that the terminology used in this invention is only for describing specific embodiments and is not intended to limit the exemplary embodiments of the invention. When the terms "comprising," "including," "containing," and / or "comprises" are used in this invention, they specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0024] It should be understood that, and also noted, in some alternative embodiments, the functions / actions may appear in a different order than those shown in the figures. For example, depending on the functions / actions involved, they may actually be performed substantially concurrently, or sometimes the two figures shown consecutively may be performed in reverse order.

[0025] It should be understood that specific details are provided in the following description to facilitate a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. For example, the system may be shown in block diagrams to avoid obscuring the example with unnecessary details. In other instances, well-known processes, structures, and techniques may be shown without unnecessary details to avoid obscuring the exemplary embodiments.

[0026] Example 1:

[0027] like Figures 1-3 As shown, a multi-functional positioning and clamping device for drill bar residue includes a body 1. The body 1 is provided with a guide hole 9, a first positioning hole and a clamping hole. The axis of the guide hole 9, the axis of the first positioning hole and the axis of the clamping hole are coplanar. The diameters of the guide hole 9, the first positioning hole and the clamping hole are all equal.

[0028] The first positioning hole is connected to a first positioning pin 2, and the clamping hole is connected to an expansion bolt 5.

[0029] The first locating pin 2 and the first locating hole are interference fit.

[0030] The expansion bolt 5 is detachably connected to the clamping hole.

[0031] By setting up a clamping device, the problem of drill bit deviation when drilling holes that are tangent to each other around the inner and outer circumferences is effectively solved during the drilling process.

[0032] Example 2:

[0033] Based on Embodiment 1, the first positioning hole is connected to the pressing hole and the first positioning hole is connected to the guide hole 9.

[0034] The distance between the guide hole 9 and the first positioning hole is 1-1.5mm smaller than the diameter of the guide hole 9, and the distance between the first positioning hole and the pressing hole is equal to the distance between the first positioning hole and the guide hole 9.

[0035] The first positioning pin 2 is a special-shaped positioning pin.

[0036] The side wall of the first positioning pin 2 is provided with two circular-arc-shaped mounting surfaces 22, which are symmetrically distributed about the axis of the first positioning pin 2.

[0037] The mounting surface 22 is a circular-arc surface with the same diameter as the guide hole 9.

[0038] One end of the first positioning pin 2 is flush with the surface of the body 1, and the other end of the first positioning pin 2 protrudes from the first positioning hole.

[0039] After two holes are drilled on the workpiece, the body 1 is first installed on the workpiece, so that the first positioning pin 2 and the expansion bolt 5 are inserted into the two drilled holes, and the expansion bolt 5 presses the body 1 against the workpiece. At this time, the guide hole 9 plays a guiding role for the drill bit. After a new hole is drilled at the position of the guide hole 9, the body 1 is removed and moved forward, and the body 1 is installed using the two frontmost holes to guide the next hole to be drilled. In this way, the intersecting holes for drilling and removing material are drilled forwardly and repeatedly.

[0040] The body 1 is connected with a screw 4 for limiting the first positioning pin 2. The axis of the screw 4 is perpendicular or non-coplanar to the axis of the first positioning pin 2.

[0041] Embodiment 3:

[0042] Based on the embodiment 1, as shown in the figure, the body 1 is further provided with a second positioning hole, and the axis of the second positioning hole, the axis of the guide hole 9, and the axis of the first positioning hole are coplanar. Figures 4-7

[0043] The first positioning hole is arranged between the guide hole 9 and the second positioning hole, and the pressing hole is arranged on the side of the second positioning hole away from the first positioning hole.

[0044] The second positioning hole and the first positioning hole are connected, and the first positioning hole is connected with the guide hole 9.

[0045] The second positioning hole is connected with the first positioning hole, and the positioning is performed by using two positioning pins and one-face-two-pin positioning method.

[0046] The diameter of the second positioning hole is equal to the diameter of the guide hole 9.

[0047] ​The distance between the guide hole 9 and the first positioning hole is 1-1.5mm smaller than the diameter of the guide hole 9, and the distance between the first positioning hole and the second positioning hole is 1-1.5mm smaller than the diameter of the guide hole 9.

[0048] The distance between the first positioning hole and the second positioning hole and the guide hole 9 is slightly smaller than the diameter, which is convenient for subsequent punching.

[0049] The distance between the pressing hole and the second positioning hole is an integer multiple of the distance between the guide hole 9 and the first positioning hole.

[0050] The distance between the pressing hole and the second positioning hole is 2 or 3 times the distance between the guide hole 9 and the first positioning hole.

[0051] Since the expansion bolt 5 needs to be connected in the hole that has been punched, the pressing hole is designed to be an integer multiple of the distance between the first positioning hole and the second positioning hole, which is convenient for connection.

[0052] The second positioning hole is connected with the second positioning pin 3, and the second positioning pin 3 is in interference fit with the second positioning hole.

[0053] The first positioning pin 2 is a special-shaped positioning pin, and the second positioning pin 3 is a cylindrical positioning pin.

[0054] The side wall of the first positioning pin 2 is provided with two circular-arc-shaped mounting surfaces 22, and the two mounting surfaces 22 are symmetrically distributed about the axis of the first positioning pin 2.

[0055] The mounting surface 22 is a circular-arc surface with the same diameter as the guide hole 9.

[0056] The two ends of the first positioning pin 2 protrude out of the first positioning hole and have the same length of protrusion. It is used for reverse positioning at the bevel or circular-arc position.

[0057] One end of the second positioning pin 3 is flush with the surface of the body 1, and the other end of the second positioning pin 3 protrudes out of the second positioning hole.

[0058] One side of the second positioning pin 3 is parallel to the surface of the body 1, and by mounting the body 1 in the right or reverse direction, one hole or multiple holes on the surface of the workpiece can be adapted.

[0059] The first positioning pin 2 and the second positioning pin 3 are provided with flat tables 21 on the side close to each other, and the flat tables 21 are flush with the body 1 during installation.

[0060] By providing the flat tables 21, interference between the two positioning pins during installation is avoided, and installation efficiency is improved.

[0061] The body 1 is connected with a screw 4 for limiting the first positioning pin 2. The axis of the screw 4 is perpendicular or non-planarly perpendicular to the axis of the first positioning pin 2.

[0062] The first positioning pin 2 and the second positioning pin 3 can be modified by using standard cylindrical positioning pins, and the position of the second positioning pin 3 can also be installed and modified by using the positioning and clamping of the expansion bolt 5. The nut of the standard expansion bolt 5 is replaced by a lifting ring nut 8 or a triangular lifting ring nut 8, and the opening sleeve is reprocessed and replaced by a freely retractable opening elastic sleeve 6. Due to the influence of burrs, the positioning part of the special-shaped positioning pin and the cylindrical positioning pin inserted into the hole is processed into a flat table 21 for easy insertion and removal.

[0063] When four holes are drilled on the workpiece, the body 1 is first installed on the workpiece, the first positioning pin 2 and the second positioning pin 3 are installed in the first hole and the second hole, and the expansion bolt 5 is installed in the fourth hole. The expansion bolt 5 presses the body 1 tightly on the workpiece, at this time the guide hole 9 plays a guiding role for the drill bit, after the new hole is drilled at the position of the guide hole 9, the body 1 is removed and moved forward, the first positioning pin 2 and the second positioning pin 3 are installed by using the front two holes for positioning, and the expansion bolt 5 is installed by using the fourth hole for pressing. At this time, the guide hole 9 guides the next hole to be drilled, and the process is repeated forward to drill the intersecting holes of the remaining material. When drilling to the end, when the remaining material is smaller than the diameter of the positioning hole, a suitable small drill bit is used to drill a small guide hole, and then the original positioning hole and the drill bit for drilling the remaining material are used to expand the hole. When the remaining material is too small to drill a suitable guide hole, a suitable flat drill bit is used to drill a hole through the positioning hole for guiding until the remaining material is completely separated.

[0064] Example 4:

[0065] Based on example 2, as shown in Figure 8 It further includes an auxiliary pressing member, and the auxiliary pressing member includes a pressing plate 10 and an expansion bolt 5 connected to the pressing plate 10.

[0066] The pressing plate 10 is provided with a long hole 11 in the middle, and the expansion bolt 5 is installed through the long hole 11.

[0067] By setting the auxiliary pressing member, when there is only one hole on the workpiece, the auxiliary pressing member is used to press the body 1.

[0068] When there is only one hole on the surface of the workpiece, the first positioning pin 2 is inserted into the hole on the surface of the workpiece, and then an auxiliary hole is drilled at the remaining material. The expansion bolt 5 of the auxiliary pressing member is connected to the auxiliary hole, and the body 1 is pressed by the pressing plate 10, instead of the original expansion bolt 5.

[0069] When encountering a circular arc or an inclined surface, the above method is also used, and the auxiliary pressing member is used for pressing.

[0070] Example 5:

[0071] Based on example 2, as shown in Figure 8As shown, the auxiliary pressing part comprises a pressing plate 10 and an expansion bolt 5 connected to the pressing plate 10.

[0072] The middle part of the pressing plate 10 is provided with a long hole 11, and the expansion bolt 5 is installed through the long hole 11.

[0073] By setting the auxiliary pressing part, when there is only one hole on the workpiece, the auxiliary pressing part is used to press the body 1.

[0074] When there is only one hole on the surface of the workpiece, the first positioning pin 2 is reversely installed (the reverse installation refers to the end of the second positioning pin 3 away from the workpiece) on the workpiece, and then an auxiliary hole is drilled at the waste material, the expansion bolt 5 of the auxiliary pressing part is connected to the auxiliary hole, and the body 1 is pressed through the pressing plate 10, instead of the original expansion bolt 5.

[0075] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents. The modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

[0076] The present application is not limited to the above optional embodiments, and anyone can derive other various forms of products under the inspiration of the present application. The above specific embodiments should not be understood as limiting the protection scope of the present application, and the protection scope of the present application should be defined by the claims, and the specification can be used to explain the claims.

Claims

1. A multi-functional positioning and clamping device for drill string residue, characterized in that: Includes a body (1), which is provided with a guide hole (9), a first positioning hole and a pressing hole in sequence. The axis of the guide hole (9), the axis of the first positioning hole and the axis of the pressing hole are coplanar. The diameter of the guide hole (9), the diameter of the first positioning hole and the diameter of the pressing hole are all equal. The first positioning hole is connected to the first positioning pin (2), and the clamping hole is connected to the expansion bolt (5). The first positioning hole and the clamping hole are connected. The side wall of the first positioning pin (2) is provided with two arc-shaped mounting surfaces (22). The mounting surface (22) is an arc surface with the same diameter as the guide hole (9). The first positioning hole is connected to the guide hole. The hole distance between the first positioning hole and the clamping hole is equal to the hole distance between the first positioning hole and the guide hole (9). The first locating pin (2) and the first locating hole are interference fit; The expansion bolt (5) is detachably connected to the clamping hole; It also includes an auxiliary clamping component, which includes a pressure plate (10) and an expansion bolt (5) connected to the pressure plate (10). The pressure plate (10) has a long hole (11) in the middle. The expansion bolt (5) is installed through the long hole (11). When there is only one hole on the surface of the workpiece, the first positioning pin (2) is inserted into the hole on the surface of the workpiece, and then an auxiliary hole is drilled in the waste material. The expansion bolt (5) of the auxiliary clamping part is connected to the auxiliary hole, and the body (1) is pressed by the pressure plate (10) to replace the expansion bolt (5) connected to the clamping hole.

2. The multi-functional positioning and clamping device for drill string residue as described in claim 1, characterized in that: The first positioning hole is connected to the pressing hole and the first positioning hole is connected to the guide hole (9).

3. The multi-functional positioning and clamping device for drill string residue as described in claim 2, characterized in that: One end of the first positioning pin (2) is flush with the surface of the body (1), and the other end of the first positioning pin (2) extends out from the first positioning hole.

4. The multi-functional positioning and clamping device for drill string residue as described in claim 1, characterized in that: The body (1) is also provided with a second positioning hole. The axis of the second positioning hole, the axis of the guide hole (9), and the axis of the first positioning hole are all coplanar. The first positioning hole is located between the guide hole (9) and the second positioning hole. At this time, the pressing hole is located on the side of the second positioning hole away from the first positioning hole. The second positioning hole is connected to the first positioning hole, and the first positioning hole is connected to the guide hole (9); The distance between the clamping hole and the second positioning hole is an integer multiple of the distance between the guide hole (9) and the first positioning hole.

5. The multi-functional positioning and clamping device for drill string residue as described in claim 4, characterized in that: The second positioning hole is connected to a second positioning pin (3), and the second positioning pin (3) and the second positioning hole are interference fit.

6. The multi-functional positioning and clamping device for drill string residue as described in claim 5, characterized in that: Both ends of the first positioning pin (2) extend from the first positioning hole; One end of the second positioning pin (3) is flush with the surface of the body (1), and the other end of the second positioning pin (3) extends out from the second positioning hole.

7. The multi-functional positioning and clamping device for drill string residue as described in claim 5, characterized in that: A flat platform (21) is provided on the side of the first positioning pin (2) and the second positioning pin (3) that are close to each other.

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