Clamping assembly of numerical control bending machine for producing aluminum pipes
By designing a clamping assembly for a CNC bending machine used in the production of aluminum tubes, the problem of complex operation and inconvenient adjustment of existing CNC tube bending machine clamping assemblies is solved by utilizing the cooperation of rotating gears and connecting toothed plates. This achieves convenient fixture installation and position adjustment, improving operational efficiency and safety.
Patent Information
- Application Number
- CN202520355583.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-03
AI Technical Summary
The installation of clamping components on existing CNC pipe bending machines is complex, laborious, and carries the risk of finger pinching. Furthermore, the position adjustment of the clamping components is inconvenient.
A clamping assembly for a CNC bending machine used in the production of aluminum tubes was designed, comprising a clamping part, a rotating part, and an adjusting mechanism. Through the cooperation of rotating gears and connecting toothed plates, the bending fixture can be conveniently installed and its position adjusted.
The installation process of the pipe bending clamp has been simplified, the operating efficiency has been improved, the labor intensity of the operator has been reduced, the risk of finger injury has been avoided, and convenient position adjustment has been achieved.
Smart Images

Figure CN223932336U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of CNC bending machine clamping equipment, and in particular to a CNC bending machine clamping assembly for producing aluminum tubes. Background Technology
[0002] CNC pipe bending machines are highly automated devices specifically designed for precise bending of various metal pipes in a cold state. These machines are widely used in the automotive, air conditioning, aerospace, shipbuilding, furniture, power construction, and machinery industries, particularly in applications requiring high-quality and complex-shaped tubing.
[0003] In existing CNC pipe bending machines, the clamping assembly is first installed by mounting the clamping frame. The clamping frame is slidably mounted on the top of the guide rail at the top of the pipe bending machine. One side of the fixing bar responsible for fixing the clamp is fitted onto the inner wall of the clamping frame, and the pipe bending clamp is fitted onto the other side of the fixing bar. The pipe bending clamp and the clamping frame are connected by the fixing bar. During connection, to ensure that the working position of the pipe bending clamp does not deviate, the operator needs to operate the guide rail to move the pipe bending clamp to slide and clamp onto the inner wall of the other half of the clamp. The position of the pipe bending clamp is then adjusted by observing the angle of deviation. In the operation of adjusting and fixing the pipe bending clamp, the operator needs to hold the position of the pipe bending clamp with one hand and use the other hand to fix the connection between the pipe bending clamp and the clamping frame with bolts. At the same time, the operator needs to repeatedly connect and adjust the position of the pipe bending clamp. There is also a risk of pinching fingers during connection. The process is time-consuming and laborious. Therefore, a clamping assembly for CNC bending machines for producing aluminum pipes has been designed. Utility Model Content
[0004] The purpose of this invention is to provide a clamping assembly for a CNC bending machine used in the production of aluminum tubes, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC bending machine clamping assembly for producing aluminum tubes, comprising a bending machine body; a rotating column is provided on the outer wall of the bending machine body;
[0006] A rotating part, wherein the rotating part is disposed at the top of the rotating column;
[0007] A clamping part is provided at the top of the bending machine body and at one end near the rotating part. The clamping part is used to clamp the steel pipe.
[0008] An adjustment mechanism is provided at one end of the rotating column near the clamping part.
[0009] Preferably, the rotating part includes:
[0010] A rotating ring, which is rotatably connected to the top of a rotating column;
[0011] A rotating clamp is disposed at the top of a rotating ring.
[0012] Preferably, the outer wall of the rotating ring is provided with a flipping plate, and both the top end of the bending machine body and the top end of the flipping plate are provided with guide rails. The adjusting mechanism is located at the top end of one of the guide rails, and the clamping part is located at the top end of the other guide rail.
[0013] Preferably, the adjustment mechanism includes:
[0014] A fixture frame, which is slidably connected to the top of one of the guide rails, has a threaded rod at the end of the fixture frame away from the rotating ring;
[0015] A rotating gear is rotatably connected to the inner wall of the fixture frame. A connecting toothed plate meshes with the outer wall of the rotating gear. A rotating rod is rotatably connected to the outer wall of the rotating gear. The outer wall of the rotating gear is rotatably connected to the inner wall of the fixture frame.
[0016] A connecting block is fixedly connected to the outer wall of a connecting toothed plate, and a pipe bending clamp is provided at the end of the connecting toothed plate away from the rotating gear.
[0017] Preferably, a blocking block is provided at the top of the rotating gear, the outer wall of the connecting block is slidably connected to one end of the clamp frame near the bending pipe clamp, and a support frame is provided at the connection between the connecting block and the bending pipe clamp.
[0018] Preferably, one of the guide rails has a threaded platform at its top end, and the inner wall of the threaded platform is threadedly connected to the outer wall of the threaded rod.
[0019] Preferably, the clamping part includes:
[0020] A mounting bracket, which is slidably connected to the top of another guide rail;
[0021] An auxiliary clamp is slidably connected to the inner wall of the fixed frame, and a stamping rod is provided at the end of the auxiliary clamp away from the fixed frame.
[0022] The technical effects and advantages of this utility model are as follows:
[0023] This utility model utilizes a clamping part and an adjustment mechanism set on one side of the bending machine body. When the operator is installing the bending pipe clamp, the operator can slide the bending pipe clamp onto the outer wall of the connecting block. Then, the operator can manually rotate the rotating rod to drive the rotating gear to rotate. The rotating gear, through meshing, will drive the connecting tooth plate to slide up and down inside the clamp frame. The connecting tooth plate drives the connecting block and the bending pipe clamp to slide up and down together. The up and down position of the bending pipe clamp can be adjusted by sliding, which is convenient for the operator to install the bending pipe clamp and also allows for convenient adjustment of the bending pipe clamp. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the main structure of the present utility model.
[0025] Figure 2 This is an exploded view of the main structure of this utility model.
[0026] Figure 3 This is a partial view of the connection structure between the clamp frame and the pipe bending clamp of this utility model.
[0027] Figure 4 This is a top view of the main structure of this utility model.
[0028] Figure 5 This is a side sectional view of the main structure of this utility model.
[0029] Figure 6 This is a top sectional view of the connection structure between the clamp frame and the pipe bending clamp of this utility model.
[0030] In the diagram: 1. Bending machine body; 2. Rotating part; 201. Rotating column; 202. Rotating ring; 203. Rotating clamp; 204. Tilting plate; 3. Clamping part; 301. Guide rail; 302. Fixing frame; 303. Auxiliary clamp; 304. Stamping rod; 4. Threading table; 401. Threaded rod; 402. Clamping frame; 403. Rotating gear; 404. Connecting toothed plate; 405. Rotating rod; 406. Blocking block; 5. Connecting block; 501. Pipe bending clamp; 502. Support frame. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] This utility model provides, for example Figure 1-6 Shown:
[0033] Example 1:
[0034] A CNC bending machine clamping assembly for producing aluminum tubes includes a bending machine body 1; a rotating column 201 is provided on the outer wall of the bending machine body 1.
[0035] Rotating part 2 is provided at the top of rotating column 201;
[0036] Clamping part 3 is provided at the top of the bending machine body 1 and is located at one end near the rotating part 2. Clamping part 3 is used to clamp the steel pipe.
[0037] An adjustment mechanism is provided at one end of the rotating column 201 near the clamping part 3.
[0038] Specifically, the rotating part 2 includes:
[0039] Rotating ring 202 is rotatably connected to the top of rotating column 201;
[0040] A rotating clamp 203 is provided at the top of a rotating ring 202. A flipping plate 204 is provided on the outer wall of the rotating ring 202. Guide rails 301 are provided at the top of both the main body 1 of the bending machine and the top of the flipping plate 204. An adjustment mechanism is provided at the top of one of the guide rails 301, and a clamping part 3 is provided at the top of the other guide rail 301.
[0041] It should be noted that the working principle of the bending machine body 1, the rotating column 201, and the rotating clamp 203 is based on the working part of the CNC pipe bending equipment of model DW75NC. The working principle of the flipping plate 204 and the guide rail 301 is based on the sliding part of the CNC pipe bending equipment of model DW75NC. When the operator starts the bending machine body 1, multiple guide rails 301 will drive the clamp frame 402 and the fixed frame 302 to slide towards the rotating clamp 203 and clamp and fix the aluminum tube through the auxiliary clamp 303 and the pipe bending clamp 501. Then, the rotating column 201 will drive the rotating clamp 203 and the rotating ring 202 to rotate. At the same time, the rotating ring 202 will drive the flipping plate 204 and the pipe bending clamp 501 to bend the aluminum tube.
[0042] Specifically, the regulatory mechanisms include:
[0043] The fixture frame 402 is slidably connected to the top of one of the guide rails 301, and a threaded rod 401 is provided at the end of the fixture frame 402 away from the rotating ring 202;
[0044] Rotating gear 403 is rotatably connected to the inner wall of fixture frame 402. A connecting toothed plate 404 meshes with the outer wall of rotating gear 403. A rotating rod 405 is rotatably connected to the outer wall of rotating gear 403. The outer wall of rotating gear 403 is rotatably connected to the inner wall of fixture frame 402.
[0045] Connecting block 5 is fixedly connected to the outer wall of connecting tooth plate 404. A pipe bending clamp 501 is provided at the end of connecting tooth plate 404 away from rotating gear 403.
[0046] It should be noted that the fixture frame 402 is slidably connected to the top of the guide rail 301. The fixture frame 402 has an internal movable groove. The connecting toothed plate 404 is slidably connected to the inside of the movable groove. The rotating gear 403 is rotatably connected to the inside of the movable groove. The rotating rod 405 is rotatably connected to the inside of the movable groove. A handle is provided on one side of the rotating rod 405. The operator can rotate the rotating rod 405 by rotating the handle. The rotating rod 405 drives the rotating gear 403 to rotate. The rotating gear 403 drives the connecting toothed plate 404 to slide up and down through meshing. The connecting toothed plate 404 drives the connecting block 5 to slide on one side of the fixture frame 402.
[0047] Specifically, a blocking block 406 is provided at the top of the rotating gear 403, the outer wall of the connecting block 5 is slidably connected to one end of the clamp frame 402 near the bending pipe clamp 501, and a support frame 502 is provided at the connection between the connecting block 5 and the bending pipe clamp 501.
[0048] It should be noted that the bottom of the sealing block 406 is provided with a tooth groove corresponding to the rotating gear 403, and a sliding rod is provided on one side of the sealing block 406. The outer wall of the clamp frame 402 is also provided with a sliding groove. After the operator adjusts the pipe bending clamp 501, the operator can slide the sealing block 406 on the top of the clamp frame 402 using the sliding rod. By sliding, the tooth groove at the bottom of the sealing block 406 is engaged with the top of the rotating gear 403. Then, the nut is threaded onto the sliding rod. The position of the sealing block 406 is fixed by the threaded connection between the nut and the sliding rod. At the same time, the rotation of the rotating gear 403 is also blocked by the locking mechanism. Then, the position of the connecting toothed plate 404 and the pipe bending clamp 501 is locked by the locking mechanism of the rotating gear 403.
[0049] In Example 2, the clamping part 3 is used to assist in fixing and bending the aluminum tube:
[0050] Specifically, one of the guide rails 301 has a threaded platform 4 at its top end. The inner wall of the threaded platform 4 is threadedly connected to the outer wall of the threaded rod 401. The clamping part 3 includes:
[0051] The fixing bracket 302 is slidably connected to the top of another guide rail 301;
[0052] An auxiliary clamp 303 is slidably connected to the inner wall of the fixed frame 302, and a stamping rod 304 is provided at the end of the auxiliary clamp 303 away from the fixed frame 302.
[0053] It should be noted that the fixing frame 302 and the stamping rod 304 are based on the bending fixing part of the CNC pipe bending machine model DW75NC. The auxiliary clamp 303 can be slidably sleeved inside the fixing frame 302. When the bending clamp 501 and the rotating clamp 203 bend the aluminum tube, the stamping rod 304 will push the auxiliary clamp 303 to slide on the inner wall of the fixing frame 302. The auxiliary clamp 303 drives the rear half of the aluminum tube to slide by sliding, preventing the rear half of the aluminum tube from being squeezed and damaged.
[0054] Working principle of this utility model:
[0055] It should be noted that the specific operation is as follows: the operator needs to place the aluminum tube on the inner wall of the rotating clamp 203, and then start the bending machine body 1. When the bending machine body 1 starts, the guide rail 301 will drive the clamp frame 402 and the fixed frame 302 to slide. The clamp frame 402 and the fixed frame 302 will drive the auxiliary clamp 303 and the bending clamp 501 to slide to one side of the rotating clamp 203, and then the aluminum tube will be clamped by the auxiliary clamp 303 and the bending clamp 501. After fixing, the rotating ring 202 will drive the rotating clamp 203 and the flipping plate 204 to flip around the rotating column 201 as the center. At the same time, the auxiliary clamp 303 will slide inside the fixed frame 302 under the push of the stamping rod 304. The rotating clamp 203 and the bending clamp 501 will bend the aluminum tube by flipping and clamping, and the auxiliary clamp 303 will fix and drive the tube body of the aluminum tube to slide displacement, finally realizing the bending of the aluminum tube. When the operator is in the bending clamp When installing or replacing fixture 501, the operator can rotate the threaded rod 401, which will engage with the threaded table 4. Through this engagement, the threaded rod 401 will drive the fixture frame 402 and the bending fixture 501 to slide on the top of the guide rail 301. Then, the operator can remove the bending fixture 501 from the side of the connecting block 5 and install the new bending fixture 501 on the top of the connecting block 5 and the support frame 502. After the bending fixture 501 is installed, the operator can rotate the rotating rod 405, which will drive the rotating gear 403 to rotate. The rotating gear 403 will then engage with the connecting toothed plate 404 to slide up and down. At the same time, the connecting toothed plate 404 will drive the connecting block 5 and the bending fixture 501 to move up and down. The height of the bending fixture 501 can be adjusted by rotating the rotating rod 405. Finally, the locking block 406 will engage with the top of the rotating gear 403 to lock the rotation of the rotating gear 403.
[0056] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A clamping assembly for a CNC bending machine used in the production of aluminum tubes, characterized in that, include: The bending machine body (1) has a rotating column (201) on its outer wall; A rotating part (2) is provided at the top of the rotating column (201); Clamping part (3), the clamping part (3) is provided at the top of the bending machine body (1) and located at one end near the rotating part (2), the clamping part (3) is used to clamp the steel pipe; An adjustment mechanism is provided at one end of the rotating column (201) near the clamping part (3), and the adjustment mechanism is used to adjust the height of the bending machine clamp.
2. The clamping assembly for a CNC bending machine used in the production of aluminum tubes according to claim 1, characterized in that, The rotating part (2) includes: A rotating ring (202) is rotatably connected to the top end of a rotating column (201); A rotating clamp (203) is disposed at the top of the rotating ring (202).
3. A clamping assembly for a CNC bending machine used in the production of aluminum tubes according to claim 2, characterized in that, The outer wall of the rotating ring (202) is provided with a flip plate (204), and the top of the bending machine body (1) and the top of the flip plate (204) are both provided with guide rails (301). The adjustment mechanism is located at the top of one of the guide rails (301), and the clamping part (3) is located at the top of the other guide rail (301).
4. A clamping assembly for a CNC bending machine used in the production of aluminum tubes according to claim 3, characterized in that, The adjustment mechanism includes: A clamp frame (402) is slidably connected to the top of one of the guide rails (301), and a threaded rod (401) is provided at the end of the clamp frame (402) away from the rotating ring (202); A rotating gear (403) is rotatably connected to the inner wall of the fixture frame (402). A connecting toothed plate (404) meshes with the outer wall of the rotating gear (403). A rotating rod (405) is rotatably connected to the outer wall of the rotating gear (403). The outer wall of the rotating gear (403) is rotatably connected to the inner wall of the fixture frame (402). A connecting block (5) is fixedly connected to the outer wall of a connecting toothed plate (404), and a bending clamp (501) is provided at one end of the connecting toothed plate (404) away from the rotating gear (403).
5. A clamping assembly for a CNC bending machine used in the production of aluminum tubes according to claim 4, characterized in that, The top of the rotating gear (403) is provided with a blocking block (406), the outer wall of the connecting block (5) is slidably connected to the end of the clamp frame (402) near the bending pipe clamp (501), and a support frame (502) is provided at the connection between the connecting block (5) and the bending pipe clamp (501).
6. A clamping assembly for a CNC bending machine used in the production of aluminum tubes according to claim 3, characterized in that, One of the guide rails (301) has a threaded platform (4) at its top end, and the inner wall of the threaded platform (4) is threadedly connected to the outer wall of the threaded rod (401).
7. A clamping assembly for a CNC bending machine used in the production of aluminum tubes according to claim 4, characterized in that, The clamping part (3) includes: A fixing bracket (302) is slidably connected to the top of another guide rail (301); An auxiliary clamp (303) is slidably connected to the inner wall of the fixed frame (302), and a stamping rod (304) is provided at one end of the auxiliary clamp (303) away from the fixed frame (302).