Special-shaped door frame processing tool
By designing a processing fixture for irregularly shaped door frames, and using a base platform, limit blocks, a rotating platform, and an automatic locking support block, the problem of processing irregularly shaped door frames in stages was solved, achieving a fast and stable processing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU JUDAO TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, irregularly shaped door frames need to be processed in stages, resulting in long fixture replacement times, high risk of deformation, and difficulty in efficient processing.
A special tooling for processing irregular door frames was designed, including a base platform, a limit block, a rotary table, a telescopic cylinder, and an automatic locking block, which realizes unified positioning and rotation of the two processing angles and reduces the time for fixture replacement.
It enables rapid and stable processing of irregularly shaped door frames, reduces fixture change time, lowers the risk of deformation, and improves processing efficiency.
Smart Images

Figure CN224274102U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal door frame processing, specifically to a tooling for processing irregularly shaped door frames. Background Technology
[0002] The door frame of a CNC machine tool differs from traditional household door frames. To accommodate the machine tool's structure, it is typically made of metal, and its irregular shape is often used to fit the machine tool's openable door. Figure 4 and Figure 5 The diagram shows a type of irregularly shaped door frame 'a' with minimal deformation. The top edge of the frame is on the left, and the bottom edge is on the right. This type of frame is suitable for connecting the front and top surfaces of a CNC machine tool. Traditionally, machining this type of door frame requires two steps: one for the front angle and one for the top angle. To reduce the time spent on mounting and dismounting fixtures and calibrating their positions, and to minimize deformation during clamping, a machining fixture suitable for both machining angles is needed. Summary of the Invention
[0003] This utility model addresses the issue that irregularly shaped door frames typically require processing in batches from multiple angles, and the upper and lower clamps consume additional time. Therefore, a processing fixture for irregularly shaped door frames that can be used for both processing angles is designed.
[0004] This utility model provides a tooling for processing irregularly shaped door frames, including:
[0005] A base platform, on which a limit block, a first telescopic cylinder, and a rotating platform are installed;
[0006] A rotating platform has a first hinge seat along its bottom edge to hinge the rotating platform to the base platform; a second hinge seat is set at the center of the rotating platform to mate with the telescopic end of the first telescopic cylinder; a rectangular hole is set on the rotating platform, and the rectangular hole is fitted onto the limiting block to mate with the limiting block.
[0007] The upper surface of the rotating platform corresponding to the first hinge seat is provided with a side support block;
[0008] An automatic locking block is also installed on the rotating platform;
[0009] The automatic locking block setting positions include: the symmetrical side and one side of the side block.
[0010] When using this machining fixture, first position the door frame on the automatic locking block and the side support block, and then lock it in place. The pressure arm on the side support block positions the bottom edge of the irregularly shaped door frame.
[0011] Upon entering the processing stage, the door frame is first processed when the rotary table is horizontal. After processing is completed, the rotary table is driven by the first telescopic cylinder to rotate to the set angle along the hinge point, and then the door frame is processed a second time. After processing is completed, the material is unloaded.
[0012] As a preferred embodiment, the automatic locking block includes: a block, a pressure arm, and a telescopic cylinder;
[0013] The support block is set on the rotating table, and the top surface of the support block is provided with a V-groove. The pressing position of the pressure arm is matched with the V-groove.
[0014] The pressure arm is set on the telescopic end of the telescopic cylinder, and the cylinder body of the telescopic cylinder is fixed on the table surface of the rotary table.
[0015] The V-groove is created by placing two raised blocks on the top surface of the support block, with the spacing between the raised blocks equal to the width of the door frame. The width of the raised blocks is equal to the width of the pressure arm, allowing for more processing space during downward pressure without affecting the positioning effect.
[0016] Preferably, the top surface of the side support block is provided with two protrusions for limiting the irregular door frame.
[0017] Preferably, the device also includes a pressure arm for the side support block and a telescopic cylinder for the side support block, wherein the pressure arm for the side support block is connected to the telescopic end of the telescopic cylinder for the side support block, and the pressure arm for the side support block cooperates with the side support block.
[0018] Preferably, the limiting block is provided with a limiting groove, the size of the rectangular hole of the rotary table matches the size of the top surface of the limiting block, and the plate surface of the rotary table is inserted into the limiting groove.
[0019] The beneficial effects of this utility model are: it can adapt to the processing of various irregular door frames of the same size, reducing the time of traditional clamping and shortening the processing flow. Attached Figure Description
[0020] Figure 1 Overall assembly side view;
[0021] Figure 2 Top view of the cylinder tilt angle when the pressure arm is not installed;
[0022] Figure 3 Top view of the cylinder when the pressure arm is installed at an angle;
[0023] Figure 4 Side view of an irregularly shaped door frame;
[0024] Figure 5 Top view of an irregularly shaped door frame at an angle of inclination;
[0025] In the diagram: a) Irregular door frame, 1) Base platform, 2) Limiting block, 3) First telescopic cylinder, 4) Rotary table, 5) Telescopic cylinder, 6) Support block, 7) Side support block, 8) Side support block pressure arm, 9) Side support block telescopic cylinder, 10) Pressure arm. Detailed Implementation
[0026] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example
[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the aforementioned irregular-shaped door frame processing fixture includes:
[0028] The base platform 1 is equipped with two limiting blocks 2, a first telescopic cylinder 3 and a rotating platform 4.
[0029] The rotary table 4 has a first hinge seat along its bottom edge, which hinges the rotary table to the third hinge seat on the base.
[0030] A second hinge seat is set at the center of the rotary table so that the rotary table can cooperate with the telescopic end of the first telescopic cylinder 3.
[0031] A rectangular hole is provided on the rotary table, and the rectangular hole is fitted onto the limit block so that the limit block and the rotary table cooperate.
[0032] The upper surface of the rotating platform corresponding to the first hinge seat is provided with a side support block 7;
[0033] An automatic locking block is also installed on the rotating platform;
[0034] The automatic locking block is positioned on the symmetrical side (top edge of the door frame) and one side (right edge of the door frame).
[0035] When using this machining fixture, first position the irregularly shaped door frame a on the automatic locking block and the side support block, and then lock it in place. The pressure arm on the side support block positions the bottom edge of the irregularly shaped door frame.
[0036] Upon entering the processing stage, the door frame is first processed when the rotary table is horizontal. After processing is completed, the rotary table is driven by the first telescopic cylinder to rotate to the set angle along the hinge point, and then the door frame is processed a second time. After processing is completed, the material is unloaded.
[0037] The automatic locking block includes: block 6, pressure arm 10 and telescopic cylinder 5;
[0038] The support block is set on the rotating table, and the top surface of the support block is provided with a V-groove. The pressing position of the pressure arm is matched with the V-groove.
[0039] The pressure arm is set on the telescopic end of the telescopic cylinder, and the cylinder body of the telescopic cylinder is fixed on the table surface of the rotary table.
[0040] The V-groove is created by placing two raised blocks on the top surface of the support block, with the spacing between the raised blocks equal to the width of the door frame. The width of the raised blocks is equal to the width of the pressure arm, allowing for more processing space during downward pressure without affecting the positioning effect.
[0041] The top surface of the side support block has two protrusions for limiting the irregular door frame.
[0042] It also includes a side block pressure arm 8 and a side block telescopic cylinder 9. The side block pressure arm is connected to the telescopic end of the side block telescopic cylinder, and the side block pressure arm cooperates with the side block.
[0043] The limiting block is provided with a limiting groove, and the size of the rectangular hole of the rotary table matches the size of the top surface of the limiting block, so that the plate surface of the rotary table is inserted into the limiting groove.
[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A tooling for processing irregularly shaped door frames, characterized in that, include: A base platform, on which a limit block, a first telescopic cylinder, and a rotating platform are installed; A rotating platform has a first hinge seat along its bottom edge to hinge the rotating platform to the base platform; a second hinge seat is set at the center of the rotating platform to mate with the telescopic end of the first telescopic cylinder; a rectangular hole is set on the rotating platform, and the rectangular hole is fitted onto the limiting block to mate with the limiting block. The upper surface of the rotating platform corresponding to the first hinge seat is provided with a side support block; An automatic locking block is also installed on the rotating platform; The automatic locking block setting positions include: the symmetrical side and one side of the side block.
2. The tooling for processing irregularly shaped door frames according to claim 1, characterized in that, The automatic locking block includes: a block, a pressure arm, and a telescopic cylinder; The support block is set on the rotating table, and the top surface of the support block is provided with a V-groove. The pressing position of the pressure arm is matched with the V-groove. The pressure arm is set on the telescopic end of the telescopic cylinder, and the cylinder body of the telescopic cylinder is fixed on the table surface of the rotary table.
3. The tooling for processing irregularly shaped door frames according to claim 1, characterized in that, The top surface of the side support block has two protrusions for limiting the irregular door frame.
4. The tooling for processing irregularly shaped door frames according to claim 3, characterized in that, It also includes a pressure arm for the side support block and a telescopic cylinder for the side support block. The pressure arm for the side support block is connected to the telescopic end of the telescopic cylinder for the side support block, and the pressure arm for the side support block cooperates with the side support block.
5. The tooling for processing irregularly shaped door frames according to claim 1, characterized in that, The limiting block is provided with a limiting groove, and the size of the rectangular hole of the rotary table matches the size of the top surface of the limiting block, so that the plate surface of the rotary table is inserted into the limiting groove.