Multi-hole numerical control punch for door and window profile
By setting up a clamping mechanism with columns, crossbars, rotating rods and pressure plates on the punch press, combined with the internal support of the lower die, the bending problem of thin-walled profiles during fixing is solved, and stable processing of profiles and rapid die replacement are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN GANGFENG DOOR & WINDOW PROD CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-21
AI Technical Summary
Existing clamping mechanisms are prone to causing bending and deformation of thin-walled profiles when fixing them, which affects the processing quality.
The clamping mechanism is fixed on the frame, including columns, crossbars, rotating rods, universal ball joint connectors and pressure plates. The pressure plates are driven by hydraulic cylinders to fix the profiles. Combined with the internal support of the lower mold, it prevents the hollow part inside the profiles from being directly squeezed.
It effectively prevents the profile from bending during the punching process, ensuring the stability and processing quality of the profile, and adapting to the rapid replacement of profiles of different shapes.
Smart Images

Figure CN224525748U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of profile processing technology, and in particular to a multi-hole CNC punching machine for door and window profiles. Background Technology
[0002] In the process of manufacturing doors and windows, the profiles need to be processed. This includes punching holes in the profiles using a punch press. During the punching operation, a clamping mechanism is needed to fix the profiles in place to prevent them from moving during the punching process, which could lead to defective punching.
[0003] Most existing clamping mechanisms clamp the side of the profile. However, for some profiles with thin walls, directly squeezing the side of the profile can easily cause the profile to bend and deform, thus affecting the further use of the profile. Utility Model Content
[0004] This utility model provides a multi-hole CNC punching machine for door and window profiles, which solves the technical problem that the pressing mechanism of the punching machine is prone to causing the profile to bend when fixing the profile.
[0005] To achieve this technical objective, the present invention adopts the following solution: a multi-hole CNC punching machine for door and window profiles, comprising a frame, a punching mechanism and a pressing mechanism;
[0006] The stamping mechanism is fixed on the top surface of the frame and is used to stamp the profile to be processed. The stamping mechanism includes a lower die, the shape of which matches the shape of the profile to be processed and is used to support the interior of the profile to be processed.
[0007] The clamping mechanism is fixed on the top surface of the stand and is used to press down the profile to be processed and fix it on the stamping mechanism.
[0008] Furthermore, a pad extending along the length direction is fixed on the top surface of the platform.
[0009] Furthermore, the stamping mechanism includes a lower die, an upper die, a support frame, and a hydraulic cylinder;
[0010] The lower mold is detachably mounted on the pad by bolts. The shape of the lower mold matches the shape of the profile to be processed, and the length of the lower mold is equal to the length of the pad. The profile to be processed is placed on the top of the lower mold.
[0011] Multiple support frames are fixed at intervals on the top of the platform, and each support frame is fixed with a hydraulic cylinder, which is set vertically.
[0012] The upper mold is fixed at the bottom of the movable end of the hydraulic cylinder, and a punch is fixed on the bottom surface of the upper mold.
[0013] Furthermore, the lower die has punch holes that correspond to the position and shape of the punch.
[0014] Furthermore, the clamping mechanism includes multiple columns spaced apart along the length of the platform;
[0015] The top of the column is connected by horizontal bars in sequence, and the side wall of the column is rotatably connected with a rotating rod;
[0016] Two adjacent rotating rods are connected by a connecting rod at the ends away from the stamping mechanism. A universal ball joint connector is fixed at the end of the rotating rod near the stamping mechanism. A pressure plate is fixed at the bottom of the universal ball joint connector, and the pressure plate abuts against the top surface of the profile to be processed.
[0017] Furthermore, the clamping mechanism also includes a spring, with hooks integrally formed at both ends of the spring, and the two hooks are respectively hooked onto the crossbar and the connecting rod.
[0018] Furthermore, each punch has at least one pressure plate on each side.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] The present invention discloses a pressing mechanism in a multi-hole CNC punching machine for door and window profiles, which presses the profile to be processed onto the punching mechanism. During this process, the punching mechanism can provide internal support for the profile to be processed, rather than directly squeezing and fixing the suspended and hollow profile to be processed, thereby preventing the profile to be processed from being bent by the pressing mechanism.
[0021] The lower die and the pad block are detachably connected, allowing for easy replacement of the lower die to accommodate various shapes of profiles to be processed. The lower die fills the interior of the profile to be processed, providing internal support and preventing bending when the pressure plate presses down on the profile. Attached Figure Description
[0022] Figure 1 A schematic diagram of a multi-hole CNC punching machine for door and window profiles provided for an embodiment of this utility model;
[0023] Figure 2 for Figure 1 Enlarged view of part A in the middle:
[0024] Figure 3 Another schematic diagram of a multi-hole CNC punching machine for door and window profiles provided for an embodiment of this utility model;
[0025] Figure 4 for Figure 3 Enlarged view of section B in the middle.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Stand; 11. Pad; 2. Stamping mechanism; 21. Lower die; 211. Punch; 22. Upper die; 23. Support frame; 24. Hydraulic cylinder; 25. Punch; 3. Clamping mechanism; 31. Column; 32. Crossbar; 33. Rotating rod; 34. Connecting rod; 35. Universal ball joint connector; 36. Pressure plate; 37. Spring; 38. Hook; 4. Profile to be processed; 5. Bolt. Detailed Implementation
[0028] To fully understand the purpose, features and effects of this utility model, the following specific embodiments will be used to describe this utility model in detail, but this utility model is not limited thereto.
[0029] like Figures 1 to 4 As shown, the present invention provides a multi-hole CNC punching machine for door and window profiles, including a frame 1, a punching mechanism 2, and a pressing mechanism 3. A pad 11 extending along its length direction is fixed on the top surface of the frame 1, and the length of the pad 11 is the same as the length of the frame 1.
[0030] The stamping mechanism 2 is fixed on the top surface of the stand 1 and is used to stamp the profile 4 to be processed. The stamping mechanism 2 includes a lower die 21, an upper die 22, a support frame 23, and a hydraulic cylinder 24. The lower die 21 is detachably mounted on the pad 11 by bolts 5. The shape of the lower die 21 matches the shape of the profile 4 to be processed and is used to support the interior of the profile 4 to be processed, preventing the profile 4 to be processed from deforming during the stamping process. The length of the lower die 21 is equal to the length of the pad 11, and the profile 4 to be processed is placed on the top of the lower die 21. Multiple support frames 23 are fixed at intervals on the top of the stand 1, and each support frame 23 is fixed with a hydraulic cylinder 24, which is vertically arranged. The upper die 22 is fixed at the bottom of the movable end of the hydraulic cylinder 24, and a punch 25 is fixed on the bottom surface of the upper die 22.
[0031] The lower die 21 has punch holes 211 that correspond to the position and shape of the punch 25.
[0032] The clamping mechanism 3 is fixed on the top surface of the stand 1 and is used to press down the profile 4 to be processed and fix it on the stamping mechanism 2. The clamping mechanism 3 includes a plurality of columns 31 spaced apart along the length of the stand 1. The tops of the columns 31 are connected in sequence by crossbars 32, and rotating rods 33 are rotatably connected to the side walls of the columns 31. The ends of two adjacent rotating rods 33 away from the stamping mechanism 2 are connected by connecting rods 34. A universal ball joint connector 35 is fixed at the end of the rotating rod 33 near the stamping mechanism 2. A pressure plate 36 is fixed at the bottom of the universal ball joint connector 35, and the pressure plate 36 abuts against the top surface of the profile 4 to be processed.
[0033] Furthermore, the clamping mechanism 3 also includes a spring 37, with hooks 38 integrally formed at both ends of the spring 37, and the two hooks 38 are respectively hooked onto the crossbar 32 and the connecting rod 34.
[0034] Furthermore, each punch 25 is provided with at least one pressure plate 36 on each side.
[0035] In use, first press down the connecting rod 34. The connecting rod 34 moves downward and drives the rotating rod 33 to rotate, causing the pressure plate 36 to rise and move away from the lower mold 21. Then, place the profile 4 to be processed onto the lower mold 21. Then, release the connecting rod 34. The connecting rod 34 returns to its original position under the restoring force of the spring 37, so that the pressure plate 36 presses on the top surface of the profile 4 to be processed, thereby fixing the profile 4 to be processed onto the lower mold 21. Then, start the hydraulic cylinder 24 to complete the operation.
[0036] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.
Claims
1. A multi-hole CNC punching machine for door and window profiles, characterized in that, It includes a stand (1), a stamping mechanism (2), and a pressing mechanism (3); The stamping mechanism (2) is fixed on the top surface of the frame (1) and is used to stamp the profile (4) to be processed. The stamping mechanism (2) includes a lower die (21). The shape of the lower die (21) matches the shape of the profile (4) to be processed and is used to support the interior of the profile (4) to be processed. The pressing mechanism (3) is fixed on the top surface of the stand (1) and is used to press down the profile (4) to be processed and fix it on the stamping mechanism (2).
2. The multi-hole CNC punching machine for door and window profiles according to claim 1, characterized in that, A pad (11) extending along its length is fixed on the top surface of the platform (1).
3. A multi-hole CNC punching machine for door and window profiles according to claim 2, characterized in that, The stamping mechanism (2) also includes an upper die (22), a support frame (23), and a hydraulic cylinder (24); The lower mold (21) is detachably mounted on the pad (11) by bolts (5), and the length of the lower mold (21) is equal to the length of the pad (11). The profile to be processed (4) is placed on the top of the lower mold (21). Multiple support frames (23) are fixedly installed at intervals on the top of the platform (1), and each support frame (23) is fixedly provided with a hydraulic cylinder (24), which is arranged vertically; The upper mold (22) is fixed at the bottom of the movable end of the hydraulic cylinder (24), and a punch (25) is fixed on the bottom surface of the upper mold (22).
4. A multi-hole CNC punching machine for door and window profiles according to claim 3, characterized in that, The lower mold (21) has punch holes (211) that correspond to the position and shape of the punch (25).
5. A multi-hole CNC punching machine for door and window profiles according to claim 4, characterized in that, The clamping mechanism (3) includes a plurality of columns (31) spaced apart along the length of the platform (1); The top of the column (31) is connected in sequence by a crossbar (32), and the side wall of the column (31) is rotatably connected to a rotating rod (33); The ends of two adjacent rotating rods (33) away from the stamping mechanism (2) are connected by a connecting rod (34). A universal ball joint connector (35) is fixed at the end of the rotating rod (33) near the stamping mechanism (2). A pressure plate (36) is fixed at the bottom of the universal ball joint connector (35). The pressure plate (36) abuts against the top surface of the profile (4) to be processed.
6. A multi-hole CNC punching machine for door and window profiles according to claim 5, characterized in that, The clamping mechanism (3) also includes a spring (37), with hooks (38) integrally formed at both ends of the spring (37), and the two hooks (38) are respectively hooked onto the crossbar (32) and the connecting rod (34).
7. A multi-hole CNC punching machine for door and window profiles according to claim 6, characterized in that, Each of the punches (25) has at least one pressure plate (36) on each side.