Upper guide wheel frame positioning tool
By fixing the non-circular positioning surface of the fixed seat and connecting flange to the end of the upper guide wheel frame, and combining the insert rod and pressure piece, the problems of damage to the precision-machined surface and large positioning error of the vise are solved, and the precise positioning and protection of the upper guide wheel frame are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 杭州盈动达精密机械有限公司
- Filing Date
- 2025-03-24
- Publication Date
- 2026-04-28
AI Technical Summary
In the existing technology, when using vises to clamp the upper guide wheel frame, the finished surface is easily damaged, and the positioning error of the rough surface is large, resulting in inaccurate positioning.
The upper guide wheel frame is fixed by a fixed base, a first connecting flange, and a second connecting flange. The upper guide wheel frame is fixed to the end of the upper guide wheel frame by a non-circular first positioning surface and a second positioning surface. The upper guide wheel frame is stably positioned by a plug rod and a pressure piece, avoiding direct contact with the machined surface.
It achieves precise positioning of the upper guide wheel frame, protects the machined surface from damage, reduces positioning errors, and improves machining accuracy.
Smart Images

Figure CN224169271U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of positioning fixtures, and more specifically, to a positioning fixture for an upper guide wheel frame. Background Technology
[0002] When drilling or wire cutting, the upper guide wheel frame needs to be positioned. Positioning of the vibration box is usually achieved by clamping the upper guide wheel frame with vises. However, when using vises to clamp the finished surface of the upper guide wheel frame, the inclined groove on the vises can easily damage the finished surface. When clamping the rough surface of the upper guide wheel frame with vises, the positioning error may be large because the rough surface has not been finished. Utility Model Content
[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0004] To address the technical problems mentioned in the background section, some embodiments of this application provide an upper guide wheel frame positioning fixture, comprising: a fixed base, a first connecting flange, a second connecting flange, and a pressure member; a first positioning surface and a second positioning surface are formed on the fixed base; a first abutment surface matching the first positioning surface is formed on the first flange, and a second abutment surface matching the second positioning surface is formed on the second flange; the pressure member is used to press both the first flange and the second flange against the fixed base; wherein, the first flange is used to fix one end of the upper guide wheel frame, and the second flange is used to fix the other end of the upper guide wheel frame; both the first positioning surface and the second positioning surface are non-circular surfaces.
[0005] Furthermore, the first positioning surface and the second positioning surface form a V-shaped surface.
[0006] Furthermore, at least two first connecting holes are formed on both ends of the upper guide wheel frame; a second connecting hole matching the connecting holes is formed on both the first flange and the second flange; a plug is provided in both the first connecting hole and the second connecting hole so that both the first flange and the second flange are connected to the upper guide wheel frame.
[0007] Furthermore, a clearance groove is formed at the bottom of the V-shaped surface.
[0008] Furthermore, both ends of the upper guide wheel frame are circular in shape.
[0009] Furthermore, when the first abutting surface abuts against the first positioning surface, and the second abutting surface abuts against the second positioning surface, the upper part of both the first flange and the second flange is a circular arc surface.
[0010] Furthermore, the pressing component includes a first pressing plate and a second pressing plate; both the first pressing plate and the second pressing plate are fixed to the fixed seat by bolts; both the first pressing plate and the second pressing plate form a pressing surface that matches the arc surface.
[0011] The beneficial effect of this application is that the first flange and the second flange are fixed to the upper guide wheel frame by using the holes on the upper guide wheel frame, and then the first flange and the second flange are clamped and fixed, thereby realizing the positioning of the upper guide wheel frame, so as not to damage the upper guide wheel frame and to maintain the positioning accuracy of the upper guide wheel frame. Attached Figure Description
[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0013] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0014] In the attached diagram:
[0015] Figure 1 This is an overall schematic diagram based on an embodiment of this application;
[0016] Figure 2 This is a structural schematic diagram as part of an embodiment, mainly showing the structure of the first positioning surface and the second positioning surface;
[0017] Figure 3 This is a structural schematic diagram as part of an embodiment, mainly showing the structure of the first abutment surface and the second abutment surface;
[0018] Figure 4 This is a structural diagram of a part of an embodiment, mainly showing the structure of the upper guide wheel frame;
[0019] Figure 5 This is a structural schematic diagram of a part of an embodiment, mainly showing the structure of the fixing seat, the first flange, and the second flange;
[0020] Figure 6 This is a structural schematic diagram as part of an embodiment, mainly showing the exploded schematic structure of the first flange and the fixed seat.
[0021] Figure label:
[0022] 1. Fixed base; 11. First positioning surface; 12. Second positioning surface; 13. Clearance groove; 2. First connecting flange; 21. First abutment surface; 22. Second abutment surface; 23. Second connecting hole; 3. Second connecting flange; 4. First pressure plate; 5. Second pressure plate; 6. Upper guide wheel frame; 61. First connecting hole. Detailed Implementation
[0023] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0024] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0025] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0026] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0027] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] Reference Figure 1-6 ,
[0029] A positioning fixture for an upper guide wheel frame includes: a fixed base 1, a first connecting flange 2, a second connecting flange 3, and a pressure member. The fixed base 1 has a first positioning surface 11 and a second positioning surface 12. The first flange has a first abutment surface 21 that matches the first positioning surface 11, and the second flange has a second abutment surface 22 that matches the second positioning surface 12. The pressure member is used to press both the first flange and the second flange against the fixed base 1. The first flange is used to fix one end of the upper guide wheel frame 6, and the second flange is used to fix the other end of the upper guide wheel frame 6. Both the first positioning surface 11 and the second positioning surface 12 are non-circular surfaces.
[0030] By adopting the above technical solution, the arrangement of the first abutment surface 21 and the second abutment surface 22 prevents the first flange and the second flange from moving relative to the fixed seat 1. Thus, the pressure member secures both the first flange and the second flange to the fixed seat 1, and both the first flange and the second flange are fixed to the upper guide wheel frame 6, thereby achieving the fixation of the upper guide wheel frame 6. Therefore, only the ends of the first flange and the second flange need to be fixed to achieve the fixation of the upper guide wheel frame 6. This reduces contact with parts of the upper guide wheel frame 6 and achieves proper positioning. It helps prevent damage to the upper guide wheel frame 6 during positioning, as it is subjected to significant stress at multiple points. This better protects the upper guide wheel frame 6 during the positioning process.
[0031] Specifically, the first positioning surface 11 and the second positioning surface 12 form a V-shaped surface. This facilitates the positioning and fixing of the first flange and the second flange.
[0032] Specifically, at least two first connecting holes 61 are formed on both ends of the upper guide wheel frame 6; second connecting holes 23 matching the connecting holes are formed on both the first flange and the second flange; insert rods are provided in both the first connecting holes 61 and the second connecting holes 23 to connect the first flange and the second flange to the upper guide wheel frame 6. The insert rods are inserted into the first connecting holes 61 of the upper guide wheel frame 6 to fix both the first flange and the second flange to the upper guide wheel frame 6. Thus, only two holes on the upper guide wheel frame 6 are used to fix both the first flange and the second flange to the upper guide wheel frame 6, resulting in less damage to the upper guide wheel frame 6. Simultaneously, the end face of the upper guide wheel frame 6 can be precision machined before fixing the first flange and the second flange to the upper guide wheel frame 6, thus ensuring contact with the precision-machined surface without damaging it and improving positioning accuracy.
[0033] In some other designs, the first connecting hole 61 is a threaded hole, the second connecting hole 23 is a countersunk hole, and the insert is a bolt.
[0034] Specifically, a clearance groove 13 is formed at the bottom of the V-shaped surface. This allows for better machining of the V-shaped surface during the processing of the fixing seat 1, preventing errors at the bottom of the V-shaped surface.
[0035] Specifically, both ends of the upper guide wheel frame 6 are circular. When the first abutting surface 21 abuts against the first positioning surface 11, and the second abutting surface 22 abuts against the second positioning surface 12, the upper parts of the first flange and the second flange are both circular arc surfaces. The pressing component includes a first pressing plate 4 and a second pressing plate 5; both the first pressing plate 4 and the second pressing plate 5 are fixed to the fixing seat 1 by bolts; both the first pressing plate 4 and the second pressing plate 5 form pressing surfaces that match the arc surfaces. This makes the pressing surfaces on the first pressing plate 4 and the second pressing plate 5 easier to process.
[0036] In this design, the ends of the first and second flanges that contact the upper guide wheel frame 6 are both precision-machined surfaces. Therefore, the roughness of the precision-machined surfaces of the first and second flanges is less than that of the two ends of the upper guide wheel frame 6, thus protecting the two ends of the upper guide wheel frame 6 and improving the positioning effect. Furthermore, a first limiting surface is formed on both the first and second flanges, and a second limiting surface is formed on the fixing seat 1. The second limiting surface is a surface perpendicular to the first positioning surface 11 and the second positioning surface 12, while the first limiting surface is a surface perpendicular to the first abutment surface 21 and the second abutment surface 22. This achieves limiting of the first and second flanges along the length of the upper guide wheel frame 6, and also further positions the upper guide wheel frame 6.
[0037] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A positioning fixture for an upper guide wheel frame, characterized in that, include: Fixed base, first connecting flange, second connecting flange and pressure member; A first positioning surface and a second positioning surface are formed on the fixed base; A first abutment surface matching the first positioning surface is formed on the first connecting flange, and a second abutment surface matching the second positioning surface is formed on the second connecting flange; The pressure member is used to press both the first connecting flange and the second connecting flange against the fixed seat; Wherein, the first connecting flange is used to fix one end of the upper guide wheel frame, and the second connecting flange is used to fix the other end of the upper guide wheel frame; Both the first positioning surface and the second positioning surface are non-circular surfaces; At least two first connection holes are formed on both ends of the upper guide wheel frame; second connection holes matching the connection holes are formed on both the first connection flange and the second connection flange. Insert rods are provided in both the first and second connecting holes so that both the first and second connecting flanges can be connected to the upper guide wheel frame.
2. The upper guide wheel frame positioning fixture according to claim 1, characterized in that: The first positioning surface and the second positioning surface form a V-shaped surface.
3. The upper guide wheel frame positioning fixture according to claim 2, characterized in that: The bottom of the V-shaped surface forms a clearance groove.
4. The upper guide wheel frame positioning fixture according to claim 3, characterized in that: Both ends of the upper guide wheel frame are circular in shape.
5. The upper guide wheel frame positioning fixture according to claim 4, characterized in that: When the first abutting surface abuts against the first positioning surface, and the second abutting surface abuts against the second positioning surface, the upper part of both the first connecting flange and the second connecting flange is a circular arc surface.
6. The upper guide wheel frame positioning fixture according to claim 5, characterized in that: The pressing component includes a first pressing plate and a second pressing plate; both the first pressing plate and the second pressing plate are fixed to the fixing base by bolts. Both the first pressure plate and the second pressure plate form a pressure surface that matches the arc surface.