A positioning tool for door and window frames
By designing an adjustable corner positioning component that works in conjunction with a fixed base frame, the problem of poor versatility of door and window frame positioning fixtures was solved, achieving efficient positioning to adapt to different sizes and models, and improving production and installation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HYG AUTO PARTS CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-24
AI Technical Summary
Existing door and window frame positioning fixtures have poor versatility and limited applicability, leading to frequent replacements, increased fixture inventory costs, and reduced production and installation efficiency.
Design a positioning fixture that includes a base frame, a first corner positioning component, a second corner positioning component, a third corner positioning component, and a fourth corner positioning component. By cooperating with the movable components and the fixed components, multi-directional adjustment of the door and window frame can be achieved to adapt to different sizes and models.
This improves the versatility and adaptability of positioning fixtures, reduces the need for fixture replacement, and enhances production and installation efficiency.
Smart Images

Figure CN224544312U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a positioning tooling for door and window frames. Background Technology
[0002] A frame positioning fixture is a tooling specifically designed for frame-like workpieces. Its main function is to ensure that the shape and dimensions of the frame part remain stable during machining, thereby improving machining quality and efficiency. It utilizes components such as clamps and support devices to fix, support, and position the frame-like workpiece during machining, ensuring that the machining position, angle, and dimensions meet design requirements.
[0003] However, most existing door and window frame positioning fixtures are designed with fixed dimensions, which have poor versatility and limited adaptability. When the size or model of the door or window changes, the entire set of fixtures needs to be replaced, which will undoubtedly increase the cost of fixture reserves. Furthermore, frequent replacement of fixtures will lead to a decrease in production and installation efficiency. Utility Model Content
[0004] In view of this, the present invention provides a positioning fixture for door and window frames to solve the problems of poor versatility and limited applicability of existing door and window frame positioning fixtures.
[0005] To achieve one or more of the above objectives or other objectives, this utility model proposes: a positioning fixture for a door and window frame, comprising: a base frame, a first corner positioning component, a second corner positioning component, a third corner positioning component, and a fourth corner positioning component;
[0006] The first corner positioning component is fixedly disposed at one corner of the base frame, the second corner positioning component and the fourth corner positioning component are slidably disposed on the base frame along the Y-axis direction, and the third corner positioning component and the fourth corner positioning component are slidably disposed on the base frame along the X-axis direction;
[0007] The first corner positioning component, the second corner positioning component, the third corner positioning component, and the fourth corner positioning component are arranged in a rectangular shape and are respectively used for positioning and connecting with the four corners of the door and window frame.
[0008] Preferably, the base frame is rectangular, and the upper and lower edges of the base frame are respectively provided with a first guide rail and a second guide rail along the length direction of the base frame. The third corner positioning component is slidably connected to the first guide rail, and the fourth corner positioning component is slidably connected to the second guide rail.
[0009] Preferably, a first mounting bracket and a second mounting bracket are provided between the upper and lower frames of the base frame. The two ends of the first mounting bracket are fixedly connected to the left ends of the first guide rail and the second guide rail, respectively, and the two ends of the second mounting bracket are slidably connected to the first guide rail and the second guide rail, respectively.
[0010] Preferably, a third guide rail is provided on the first mounting bracket along the width direction of the base frame, the first corner positioning component is fixedly disposed at the lower end of the third guide rail, and the second corner positioning component is slidably disposed on the third guide rail;
[0011] The second mounting bracket is provided with a fourth guide rail along the width direction of the base frame. The third corner positioning component is fixedly disposed at the lower end of the fourth guide rail, and the fourth corner positioning component is slidably disposed on the fourth guide rail.
[0012] Preferably, the first corner positioning component, the second corner positioning component, the third corner positioning component, and the fourth corner positioning component have the same structure;
[0013] The second corner positioning component includes a mounting plate, a telescopic cylinder, a top block, a pressure block, and a clamping block. The bottom of the mounting plate is slidably connected to the third guide rail. The rear end of the telescopic cylinder is disposed on the mounting plate, and the front end of the telescopic cylinder is connected to the top block. The clamping block is disposed below the top block, and the pressure block is movable and positioned above the top block.
[0014] Preferably, the outer end of the top block is in the shape of a right-angled groove, which is used to make corner contact with the door and window frame.
[0015] Preferably, drive components are respectively provided on the frame of the base frame, and the drive components are respectively used to drive the second corner positioning component, the third corner positioning component and the fourth corner positioning component to slide.
[0016] Preferably, a connecting arm is provided on one side of the mounting plate, and the driving assembly includes a drive motor, a lead screw, and a nut. The drive motor is rotatably connected to the lead screw, the nut is threaded onto the lead screw, and the connecting arm is connected to the nut.
[0017] Preferably, the connecting arm is perpendicular to the lead screw and aligned with the top block, and a scale is arranged parallel above the lead screw, the scale penetrating vertically through the connecting arm.
[0018] Preferably, a number of support rods are also provided between the upper and lower frames of the base frame. The two ends of the support rods are slidably connected to the first guide rail and the second guide rail, respectively, and each support rod is provided with a number of quick-release clamps.
[0019] Implementing the embodiments of this utility model will have the following beneficial effects:
[0020] After adopting the above-mentioned positioning fixture for door and window frames, the second, third, and fourth corner positioning components, which are movably set on the base frame, cooperate with the first corner positioning component, which is fixed on the base frame. When the size or model of the door or window changes, there is no need to replace the entire fixture; only the position of the corner positioning components needs to be adjusted. It has strong versatility and a wide range of applications, which helps to improve production and installation efficiency. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] in:
[0023] Figure 1 This is a schematic diagram of the overall structure of the positioning fixture for the door and window frame proposed in this utility model;
[0024] Figure 2 This is a top view of the positioning fixture for the door and window frame proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the structure of the second corner positioning component and the drive component of the positioning fixture for the door and window frame proposed in this utility model. Figure 1 ;
[0026] Figure 4 This is a schematic diagram of the structure of the second corner positioning component and the drive component of the positioning fixture for the door and window frame proposed in this utility model. Figure 2 .
[0027] Reference numerals: 10. Base frame; 11. First guide rail; 12. Second guide rail; 13. First mounting bracket; 14. Second mounting bracket; 15. Third guide rail; 16. Fourth guide rail; 17. Support rod; 18. Quick-release clamp; 20. First corner positioning assembly; 30. Second corner positioning assembly; 31. Mounting plate; 311. Connecting arm; 32. Telescopic cylinder; 33. Top block; 34. Pressure block; 35. Clamping block; 40. Third corner positioning assembly; 50. Fourth corner positioning assembly; 60. Drive assembly; 61. Drive motor; 62. Lead screw; 621. Scale; 63. Nut. Detailed Implementation
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.
[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0031] like Figure 1-4 The image shown is an embodiment provided by this utility model.
[0032] This utility model provides a positioning fixture for a door and window frame, including: a base frame 10, a first corner positioning component 20, a second corner positioning component 30, a third corner positioning component 40, and a fourth corner positioning component 50. The base frame 10 serves as the basic support platform for the tooling. The first corner positioning component 20 is fixedly installed at one corner of the base frame 10, such as the lower left corner, and this corner serves as the reference angle to form the origin of the positioning coordinate system. The second corner positioning component 30 is slidably installed on the base frame 10 along the Y-axis direction (i.e., the width direction of the base frame 10) to adjust the longitudinal width of the door and window frame. The third corner positioning component 40 is slidably installed on the base frame 10 along the X-axis direction (i.e., the length direction of the base frame 10) to adjust the lateral length of the door and window frame. The fourth corner positioning component 50 can be slidably installed on the base frame 10 along both the X-axis and Y-axis directions simultaneously, achieving precise positioning of the diagonal of the door and window frame through compound motion. Furthermore, the first corner positioning component 20, the second corner positioning component 30, the third corner positioning component 40, and the fourth corner positioning component 50 are arranged in a rectangular shape and are respectively used to position and connect with the four corners of the door and window frame, forming a rigid positioning of the door and window frame and ensuring that the door and window frame is a rectangular structure.
[0033] After adopting the above-mentioned positioning fixture for door and window frames, the second corner positioning component 30, the third corner positioning component 40 and the fourth corner positioning component 50, which are movably set on the base frame 10, cooperate with the first corner positioning component 20, which is fixedly set on the base frame 10. When the size and model of the door and window change, only the position of each corner positioning component needs to be slid and adjusted to adapt to the new specifications. There is no need to replace the entire fixture body, which makes the positioning fixture highly versatile and adaptable to a wide range of applications. It can meet the positioning needs of small window frames to large door frames, and helps to improve production and installation efficiency.
[0034] Specifically, the base frame 10 has a rectangular frame structure. The upper and lower edges of the base frame 10 are respectively provided with a first guide rail 11 and a second guide rail 12 along the length direction (i.e., the X-axis direction) of the base frame 10. For example, the first guide rail 11 is provided along the lower edge of the base frame 10, and the second guide rail 12 is provided along the upper edge of the base frame 10. The third corner positioning component 40 is slidably connected to the first guide rail 11 to realize the X-axis sliding of the third corner positioning component 40. The fourth corner positioning component 50 is slidably connected to the second guide rail 12 to realize the X-axis sliding of the fourth corner positioning component 50, thereby enabling the positioning of the lateral length of the door and window frame.
[0035] Furthermore, a first mounting bracket 13 and a second mounting bracket 14 are provided between the upper and lower frames of the base frame 10. The two ends of the first mounting bracket 13 are fixedly connected to the left ends of the first guide rail 11 and the second guide rail 12 respectively to form a static support. The two ends of the second mounting bracket 14 are slidably connected to the first guide rail 11 and the second guide rail 12 respectively, and their positions can be freely adjusted along the X-axis direction. Specifically, a third guide rail 15 is provided on the first mounting bracket 13 along the width direction (i.e., the Y-axis direction) of the base frame 10. The first corner positioning component 20 is fixedly installed at the lower end of the third guide rail 15 as a reference point. The second corner positioning component 30 is slidably installed on the third guide rail 15 to realize the adjustment of the Y-axis direction of the second corner positioning component 30. A fourth guide rail 16 is provided on the second mounting bracket 14 along the width direction (i.e., the Y-axis direction) of the base frame 10. The third corner positioning component 40 is fixedly installed at the lower end of the fourth guide rail 16 and can only move along the X-axis direction with the second mounting bracket 14 as a whole. The fourth corner positioning component 50 is slidably installed on the fourth guide rail 16 so that the fourth corner positioning component 50 can move along the X-axis direction with the second mounting bracket 14 as a whole and can also move along the Y-axis direction along the fourth guide rail 16 to achieve precise positioning of the diagonal of the door and window frame.
[0036] Specifically, the first corner positioning component 20, the second corner positioning component 30, the third corner positioning component 40, and the fourth corner positioning component 50 have the same structure and adopt a modular unified design. Taking the second corner positioning component 30 as an example, the second corner positioning component 30 includes a mounting plate 31, a telescopic cylinder 32, a top block 33, a pressure block 34, and a clamping block 35. The bottom of the mounting plate 31 can be provided with a slider that slides and is slidably connected to the third guide rail 15. The rear cylinder body of the telescopic cylinder 32 is fixedly mounted on the mounting plate 31. The front end of the piston rod of the telescopic cylinder 32 is connected to the top block 33, driving the top block 33 to move back and forth. The outer end of the top block 33 is in the shape of a right-angled groove, which is used to abut against the corner of the door and window frame and can be tightly connected to the right angle of the door and window frame. The clamping block 35 is located below the top block 33 and is used to support and limit the bottom of the door and window frame. The pressure block 34 can be raised and lowered above the top block 33 through a cylinder mechanism and is used to press and limit the top of the door and window frame.
[0037] Furthermore, drive components 60 are respectively provided on the frame of the base frame 10. The three drive components 60 are used to drive the second corner positioning component 30 to slide along the Y-axis, drive the third corner positioning component 40 to slide along the X-axis, and drive the fourth corner positioning component 50 to slide along the X-axis / Y-axis. Specifically, the drive component 60 includes a drive motor 61, a lead screw 62, and a nut 63. The drive motor 61 is rotatably connected to the lead screw 62. The drive motor 61 can be a stepper motor with a gearbox or a low-speed servo motor. The nut 63 is threadedly connected to the lead screw 62. The drive motor 61 drives the lead screw 62 to rotate, thereby driving the nut 63 to move linearly. A connecting arm 311 is provided on one side of the mounting plate 31. The connecting arm 311 is rigidly connected to the nut 63. The movement of the nut 63 can drive the mounting plate 31 to slide on the guide rail.
[0038] Furthermore, the connecting arm 311 is perpendicular to the lead screw 62, and the connecting arm 311 is aligned with the top block 33. This can be achieved by aligning the left and right side walls of the connecting arm 311 with the side walls of the top block 33 that abut against the door and window frame, so that the position of the side wall of the connecting arm 311 is aligned with the position of the end face of the door and window frame. A scale 621 is parallel to the top of the lead screw 62 and passes vertically through the connecting arm 311. The dimensions of the door and window frame are visualized by the degrees on the scale 621, so as to facilitate the accurate positioning and measurement of door and window frames of different sizes.
[0039] Furthermore, several support rods 17 are also installed between the upper and lower frames of the base frame 10 to support the frame structure in the middle of the door and window frame. The two ends of the support rods 17 are slidably connected to the first guide rail 11 and the second guide rail 12 respectively, so that each support rod 17 can move along the length of the base frame 10 to accommodate door and window frames of different sizes. In addition, several quick-release clamps 18 are provided on each support rod 17. The quick-release clamps 18 can be such as pneumatic quick clamps to clamp and fix the frame part in the middle of the door and window frame. The support rods 17 can also be equipped with a sliding rail structure so that some quick clamps can be flexibly adjusted in position.
[0040] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. A positioning fixture for door and window frames, characterized in that, include: The base frame (10), the first corner positioning component (20), the second corner positioning component (30), the third corner positioning component (40), and the fourth corner positioning component (50); The first corner positioning component (20) is fixedly disposed at one corner of the base frame (10), the second corner positioning component (30) and the fourth corner positioning component (50) are slidably disposed on the base frame (10) along the Y-axis direction, and the third corner positioning component (40) and the fourth corner positioning component (50) are slidably disposed on the base frame (10) along the X-axis direction. The first corner positioning component (20), the second corner positioning component (30), the third corner positioning component (40), and the fourth corner positioning component (50) are arranged in a rectangular shape and are respectively used for positioning and connecting with the four corners of the door and window frame.
2. The positioning fixture for door and window frames according to claim 1, characterized in that, The base frame (10) is rectangular. The upper and lower edges of the base frame (10) are respectively provided with a first guide rail (11) and a second guide rail (12) along the length direction of the base frame (10). The third corner positioning component (40) is slidably connected to the first guide rail (11), and the fourth corner positioning component (50) is slidably connected to the second guide rail (12).
3. The positioning fixture for door and window frames according to claim 2, characterized in that, A first mounting bracket (13) and a second mounting bracket (14) are mounted between the upper and lower frames of the base frame (10). The two ends of the first mounting bracket (13) are fixedly connected to the left ends of the first guide rail (11) and the second guide rail (12), respectively. The two ends of the second mounting bracket (14) are slidably connected to the first guide rail (11) and the second guide rail (12), respectively.
4. The positioning fixture for door and window frames according to claim 3, characterized in that, A third guide rail (15) is provided on the first mounting bracket (13) along the width direction of the base frame (10), the first corner positioning component (20) is fixedly disposed at the lower end of the third guide rail (15), and the second corner positioning component (30) is slidably disposed on the third guide rail (15); The second mounting bracket (14) is provided with a fourth guide rail (16) along the width direction of the base frame (10), the third corner positioning component (40) is fixedly disposed at the lower end of the fourth guide rail (16), and the fourth corner positioning component (50) is slidably disposed on the fourth guide rail (16).
5. The positioning fixture for door and window frames according to claim 4, characterized in that, The first corner positioning component (20), the second corner positioning component (30), the third corner positioning component (40), and the fourth corner positioning component (50) have the same structure; The second corner positioning component (30) includes a mounting plate (31), a telescopic cylinder (32), a top block (33), a pressure block (34), and a clamping block (35). The bottom of the mounting plate (31) is slidably connected to the third guide rail (15). The rear end of the telescopic cylinder (32) is disposed on the mounting plate (31), and the front end of the telescopic cylinder (32) is connected to the top block (33). The clamping block (35) is disposed below the top block (33), and the pressure block (34) is movable and displaceable above the top block (33).
6. The positioning fixture for door and window frames according to claim 5, characterized in that, The outer end of the top block (33) is in the shape of a right-angled groove, which is used to make corner contact with the door and window frame.
7. The positioning fixture for door and window frames according to claim 5, characterized in that, The frame (10) is provided with drive components (60) on its side, and the drive components (60) are used to drive the second corner positioning component (30), the third corner positioning component (40) and the fourth corner positioning component (50) to slide.
8. The positioning fixture for door and window frames according to claim 7, characterized in that, A connecting arm (311) is provided on one side of the mounting plate (31). The drive assembly (60) includes a drive motor (61), a lead screw (62), and a nut (63). The drive motor (61) is rotatably connected to the lead screw (62), the nut (63) is threaded onto the lead screw (62), and the connecting arm (311) is connected to the nut (63).
9. The positioning fixture for door and window frames according to claim 8, characterized in that, The connecting arm (311) is perpendicular to the lead screw (62) and aligned with the top block (33). A scale (621) is arranged parallel above the lead screw (62) and passes vertically through the connecting arm (311).
10. The positioning fixture for door and window frames according to claim 2, characterized in that, Several support rods (17) are also installed between the upper and lower frames of the base frame (10). The two ends of the support rods (17) are slidably connected to the first guide rail (11) and the second guide rail (12) respectively. Several quick-release clamps (18) are provided on each support rod (17).