Positioning clamp for drilling
By designing a positioning fixture for drilling, the problem of position offset caused by traditional positioning tools cannot effectively fix parts is solved, and the stable positioning of parts during drilling is achieved, and product quality and accuracy are improved.
Patent Information
- Application Number
- CN202421544419.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-01
AI Technical Summary
In the prior art, traditional positioning tools cannot effectively fix the parts during drilling, resulting in a positional shift in the parts during processing, affecting product quality.
A positioning fixture for drilling is designed, including a sleeve block, a plug rod and a fixing sleeve. The plug rod penetrates the part and is connected to the fixing sleeve. The positioning hole and sinking groove are used to position it to ensure the stability of the part during the drilling process.
Through the use of positioning fixtures, the parts can be effectively prevented from being positionally offset during drilling, reduce processing errors, and improve the accuracy and product quality of the parts.
Smart Images
Figure CN222754470U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of tooling fixtures, and in particular to a positioning fixture for drilling. Background Art
[0002] like Figure 1 The machining part shown has a cylindrical section, the outer circle of the cylindrical section has a ring-shaped boss, the cylindrical section is hollow and has a through hole. In the process of machining parts, it is necessary to open a number of circular holes in the circumference of the part, and drilling generally requires a positioning tool to fix the part.
[0003] In the prior art, traditional positioning tools usually use a pressing block to press the object to achieve circumferential positioning of the part, and then use a drilling machine to drill the hole. However, this method is not strong enough, and the part is easily offset by external force during the drilling process, resulting in errors in the drilling position of the part, affecting product quality, so it needs to be improved. Utility Model Content
[0004] In order to facilitate the positioning of parts and improve the drilling quality of products, the present application provides a positioning fixture for drilling.
[0005] The present application provides a drilling positioning fixture that adopts the following technical solution:
[0006] A positioning fixture for drilling, comprising a sleeve block, a plug-in rod and a fixing sleeve, wherein a recessed groove is provided at one end of the sleeve block, and the recessed groove is used for inserting a cylindrical section; a plurality of positioning holes are provided on the sleeve block, and each of the positioning holes is connected to the recessed groove; the plug-in rod is connected to the sleeve block and is located at one end where the recessed groove is located, and the plug-in rod is used to pass through a part; the fixing sleeve is detachably connected to the plug-in rod, and the fixing sleeve is used to fix the part to the plug-in rod.
[0007] By adopting the above technical solution, when drilling is required, the staff inserts the cylindrical section of the part into the sink, and at the same time allows the plug-in rod to penetrate the entire part. At this time, there is a plug-in force between the plug-in rod and the part. Then the fixing sleeve is connected to the plug-in rod to complete the fixation of the part. Finally, the staff holds the sleeve block and uses a drilling machine to align the position of the positioning hole to drill a hole, thereby generating a hole on the surface of the part. Positioning is performed by using a positioning fixture, so that when drilling the side wall of the part, the part is not easily offset, reducing the error caused by the part during the processing process and improving the accuracy of the part.
[0008] Preferably, the plug-in rod is provided with a threaded section, and the fixing sleeve is screwed onto the threaded section.
[0009] By adopting the above technical solution, the fixing sleeve is detachably connected to the plug-in rod by screw connection, and the parts are fixed by the screw connection force between the two.
[0010] Preferably, the fixing sleeve comprises a pressing ring portion and a nut portion which are integrally connected, the pressing ring portion is used to be pressed onto the part, and the nut portion is threaded onto the plug-in rod.
[0011] By adopting the above technical solution, the pressure ring part can be pressed on the surface of the part to increase the contact area between the nut part and the part. The nut part is screwed on the plug-in rod to achieve the connection between the fixing sleeve and the plug-in rod.
[0012] Preferably, the outer surface of the sleeve block is provided with a plurality of edges, so that the cross section of the sleeve block is polygonal.
[0013] By adopting the above technical solution, when the worker holds the sleeve block with his hand, the presence of the edge can increase the gripping force between the hand and the sleeve block, thereby improving the stability of the drilling.
[0014] Preferably, an anti-skid layer is provided on the inner wall of the trough, and the anti-skid layer is made of polymer material.
[0015] By adopting the above technical solution, the anti-slip layer has a larger friction coefficient, which can increase the static friction force of the parts inserted into the sink groove and reduce the possibility of circumferential rotation of the parts.
[0016] Preferably, the plug-in rod is detachably connected to the sleeve block.
[0017] By adopting the above technical solution, when the plug-in rod is damaged, the plug-in rod can be removed and replaced alone without having to replace it together with the sleeve block, thereby reducing costs.
[0018] Preferably, it also includes a mounting block, which is arranged in the sink groove, the plug rod is connected to one end of the mounting block, and the other end of the mounting block is extended and connected with a screw rod, the screw rod passes through the sleeve block, and is locked to the sleeve block by a fastening nut.
[0019] By adopting the above technical solution, the mounting block is placed in the sink, the screw rod is passed through one end of the sleeve block, and then the fastening nut is locked on the screw rod to fix the mounting block. When the plug-in rod is damaged, the fastening nut can be loosened and the entire mounting block with the plug-in rod can be replaced.
[0020] Preferably, the sleeve block is a split structure, and the sleeve block includes a first block and a second block, one end of the first block is connected to a plurality of plug rods, the second block is provided with slots corresponding to the plug rods, the plug rods are inserted into the slots, and the positioning holes are provided on the second block.
[0021] By adopting the above technical solution, the plug rod is inserted into the slot to realize the detachable connection between the first block and the second block. Because sometimes it is necessary to open holes of different diameters on the parts, the second block can be removed from the first block and replaced with the second block with the positioning hole of the corresponding diameter, so as to drill a round hole of the corresponding specification on the parts, thereby improving practicality.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] (1) Positioning by positioning fixtures makes it less likely that the parts will shift when drilling holes in the side walls of the parts, thereby reducing the errors caused by the parts during processing and improving the accuracy of the parts.
[0024] (2) By providing an anti-slip layer, the static friction of the parts inserted into the sink can be increased, and the circumferential rotation of the parts can be reduced.
[0025] (3) By setting the sleeve block as a split structure, it is convenient to install the second block with positioning holes of different diameters onto the first block to form the sleeve block, thereby drilling a circular hole of corresponding size on the part. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural schematic diagram of a part in the background technology;
[0027] Figure 2 is a schematic diagram of the structure of the positioning fixture in an embodiment of the present application;
[0028] Figure 3 It is a schematic diagram of the structure in which the parts are installed on the positioning fixture in the embodiment of the present application;
[0029] Figure 4 is a top view of a positioning fixture in an embodiment of the present application;
[0030] Figure 5 is a cross-sectional schematic diagram of the positioning fixture AA in an embodiment of the present application;
[0031] Figure 6 It is an exploded schematic diagram of the sleeve block in the embodiment of the present application.
[0032] Figure numerals: 1, sleeve block; 11, first block; 12, second block; 2, plug-in rod; 3, fixing sleeve; 31, pressure ring part; 322, nut part; 4, countersunk groove; 5, positioning hole; 6, threaded section; 7, mounting block; 8, screw rod; 9, fastening nut; 10, plug-in rod. DETAILED DESCRIPTION
[0033] The technical solution of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.
[0034] In the description of the present application, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any one or more embodiments or examples in a suitable manner.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.
[0036] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection; it can also be a detachable connection; or integrated; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0037] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples shown in the present application.
[0038] The present application embodiment discloses a positioning fixture for drilling. Figure 2 The positioning fixture includes a sleeve block 1, a plug-in rod 2 and a fixed sleeve 3. The outer surface of the sleeve block 1 is provided with a plurality of edges, each of which is arranged along the height direction of the sleeve block 1, so that the cross section of the sleeve block 1 is a regular polygon. A sink groove 4 is provided at one end of the sleeve block 1, and the sink groove 4 is used for inserting the cylindrical section of the part; a plurality of positioning holes 5 are provided on the sleeve block 1, and each positioning hole 5 is distributed at intervals along the circumference of the sleeve block 1, and is connected to the sink groove 4. The plug-in rod 2 is located at one end where the sink groove 4 is located, and is connected to the sleeve block 1, and the plug-in rod 2 is used to pass through the entire part. The fixed sleeve 3 is detachably connected to the plug-in rod 2, and the fixed sleeve 3 is used to fix the part on the plug-in rod 2.
[0039] Specifically, a threaded section 6 is provided at one end of the plug-in rod 2 away from the sleeve block 1, and the threaded section 6 is an external thread. The fixing sleeve 3 is screwed on the threaded section 6 to achieve a detachable connection between the fixing sleeve 3 and the plug-in rod 2. In this embodiment, the fixing sleeve 3 includes a pressure ring portion 31 and a nut portion 322 connected in one piece. The pressure ring portion 31 is used to press on the part, and the nut portion 322 is screwed on the plug-in rod 2. The cross section of the pressure ring portion 31 is larger than the cross section of the nut portion 322.
[0040] Combination Figure 3 When drilling is required, the staff inserts the cylindrical section of the part into the sink 4, and at the same time allows the plug-in rod 2 to penetrate the entire part. At this time, there is a plug-in force between the plug-in rod 2 and the part. Then the fixing sleeve 3 is screwed onto the plug-in rod 2 to complete the fixation of the part. Finally, the staff holds the sleeve block 1 and uses a drilling machine to drill the position of the positioning hole 5, thereby producing a hole on the surface of the part. Positioning is performed by using a positioning fixture, so that when drilling the side wall of the part, the part is not easily offset, reducing the error caused by the part during the processing and improving the accuracy of the part.
[0041] The inner wall of the sink 4 is also provided with an anti-slip layer (not shown in the figure), which is made of a polymer material, which may be but not limited to rubber or polyurethane. The anti-slip layer has a large friction coefficient, which can increase the static friction force of the parts inserted into the sink 4 and reduce the possibility of circumferential rotation of the parts. Figure 4 and Figure 5 In addition, the sleeve block 1 can be detachably connected with a mounting block 7, which is arranged in the sink 4, and the plug-in rod 2 is fixedly connected to one end of the mounting block 7. The other end of the mounting block 7 is extended with a screw rod 8, which passes through the sleeve block 1 and is locked on the sleeve block 1 by a fastening nut 9. When the plug-in rod 2 is damaged, the fastening nut 9 can be loosened, and the entire mounting block 7 with the plug-in rod 2 can be replaced, without having to replace the sleeve block 1 together, thereby reducing costs.
[0042] According to some embodiments of the present application, optionally, please refer to Figure 6 The sleeve block 1 in this embodiment is a split structure, and the sleeve block 1 includes a first block 11 and a second block 12. One end of the first block 11 is fixedly connected to a plurality of plug rods 10, and the second block 12 is provided with slots corresponding to the plug rods 10. The plug rods 10 are respectively inserted into the slots to realize the detachable connection between the first block 11 and the second block 12; the positioning holes 5 are distributed on the second block 12 at intervals.
[0043] Since it is sometimes necessary to open holes of different diameters on parts, the second block 12 can be removed from the first block 11 and replaced with the second block 12 having the positioning hole 5 of the corresponding diameter, so as to drill a circular hole of the corresponding specification on the part to improve practicality.
[0044] The implementation principle of a positioning fixture for drilling in an embodiment of the present application is as follows: when drilling is required, the staff inserts the cylindrical section of the part into the sink 4, and at the same time allows the plug-in rod 2 to penetrate the entire part. At this time, there is a plug-in force between the plug-in rod 2 and the part. Then the fixing sleeve 3 is connected to the plug-in rod 2 to complete the fixation of the part. Finally, the staff holds the sleeve block 1 and uses a drilling machine to drill at the position of the positioning hole 5, thereby generating a hole on the surface of the part. Positioning is performed by using a positioning fixture, so that when drilling the side wall of the part, the part is not easily offset, thereby reducing the error caused by the part during the processing and improving the accuracy of the part.
[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A positioning fixture for drilling, characterized in that: The invention comprises a sleeve block (1), a plug-in rod (2) and a fixing sleeve (3); a recessed groove (4) is provided at one end of the sleeve block (1); the recessed groove (4) is used for inserting a cylindrical section; a plurality of positioning holes (5) are provided on the sleeve block (1); each positioning hole (5) is connected to the recessed groove (4); the plug-in rod (2) is connected to the sleeve block (1) and is located at the end where the recessed groove (4) is located; the plug-in rod (2) is used for passing a part; the fixing sleeve (3) is detachably connected to the plug-in rod (2); the fixing sleeve (3) is used for fixing a part to the plug-in rod (2).
2. A drilling positioning fixture according to claim 1, characterized in that: The plug-in rod (2) is provided with a threaded section (6), and the fixing sleeve (3) is screwed onto the threaded section (6).
3. A drilling positioning fixture according to claim 2, characterized in that: The fixing sleeve (3) comprises a pressing ring portion (31) and a nut portion (322) which are integrally connected, the pressing ring portion (31) being used to be pressed onto a part, and the nut portion (322) being screwed onto the plug-in rod (2).
4. A drilling positioning fixture according to claim 1, characterized in that: The outer surface of the sleeve block (1) is provided with a plurality of edges, so that the cross section of the sleeve block (1) is polygonal.
5. A drilling positioning fixture according to claim 1, characterized in that: An anti-slip layer is provided on the inner wall of the sink (4), and the anti-slip layer is made of a polymer material.
6. A drilling positioning fixture according to claim 1, characterized in that: The plug-in rod (2) is detachably connected to the sleeve block (1).
7. A drilling positioning fixture according to claim 6, characterized in that: It also includes a mounting block (7), the mounting block (7) being arranged in the sink (4), the plug-in rod (2) being connected to one end of the mounting block (7), the other end of the mounting block (7) being extended and connected to a screw rod (8), the screw rod (8) passing through the sleeve block (1) and being locked to the sleeve block (1) by a fastening nut (9).
8. A drilling positioning fixture according to claim 1, characterized in that: The sleeve block (1) is a split structure, comprising a first block (11) and a second block (12), one end of the first block (11) being connected to a plurality of insertion rods (10), the second block (12) being provided with slots corresponding to the insertion rods (10), the insertion rods (10) being inserted into the slots, and the positioning holes (5) being provided on the second block (12).