A table leg bending press for table and chair processing

Abstract

The utility model discloses a desk leg press bending machine for desk and chair processing relates to press bending machine technical field, including frame, and the feeding unit, auxiliary unit, press bending support unit and rotating mechanism are fixed sequentially installed on the frame, and rotating mechanism is located the side surface middle position of frame, and the press bending unit of fixed installation has on rotating mechanism, press bending support unit includes mounting seat, and the extension telescopic steel ring. Advantageous effects lie in through first hydraulic telescopic mechanism, movable frame, second hydraulic telescopic mechanism, support frame can adjust the extension telescopic steel ring's amplitude and support range, adapt to the desk leg processing of different bending angle, and can separate and the targeted support of different bending position of desk leg pipe fitting, improve the stability of desk leg pipe fitting bending position, evenly distribute the stress at the desk leg pipe fitting bending position, make the desk leg pipe fitting bending part can even change, reduce the defect such as wrinkle, cracking, improve the quality of desk leg pipe fitting bending.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, and in particular to a table leg bending machine for table and chair processing. Background Technology

[0002] Existing folding tables are made of wood or metal. The legs of metal folding tables are made of rods. The rods are shaped by a bending machine according to the required bending angle of the table legs, thus completing the production of the table legs.

[0003] A search revealed that Chinese patent application CN223056475U discloses an automatic table leg bending machine, which mainly uses a clamping and shrinking mechanism, a clamping and positioning mechanism, and an auxiliary bending mechanism to automatically complete the stamping and bending of table legs, significantly improving production efficiency.

[0004] Compared with existing technologies in related fields, it can be seen that existing bending support structures are mostly fixed structures, which are difficult to adapt to the processing of table legs with different bending angles and have poor versatility. During the bending process, only a part of the inner side of the pipe is supported, and the pipe is prone to deformation during bending, which affects the bending quality. Utility Model Content

[0005] The purpose of this utility model is to provide a table leg bending machine for table and chair processing in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A table leg bending machine for processing tables and chairs includes a frame, on which a feeding unit, an auxiliary unit, a bending support unit and a rotating mechanism are fixedly installed in sequence. The rotating mechanism is located in the middle of the side of the frame, and a pressure bending unit is fixedly installed on the rotating mechanism.

[0008] The bending support unit includes a mounting base and an extended telescopic steel ring. The mounting base is fixedly installed on the frame. The mounting base has mounting slots arranged in a row. A telescopic adjustment component is fixedly installed in the mounting slot. A support frame is fixedly installed on the output end of the telescopic adjustment component. The support frame is fixedly connected to the inner side of the extended telescopic steel ring. The support frame is arranged on the extended telescopic steel ring.

[0009] Furthermore, the telescopic adjustment assembly includes a first hydraulic telescopic mechanism, which is fixedly installed in the mounting groove. A movable frame is fixedly installed on the telescopic end of the first hydraulic telescopic mechanism. Two second hydraulic telescopic mechanisms are rotatably installed on the movable frame, and the telescopic ends of the two second hydraulic telescopic mechanisms are rotatably connected to the two ends of the support frame.

[0010] Furthermore, a placement groove is provided on the side of the support frame, and a pressure sensor is fixedly installed in the placement groove. The pressure sensor is located between the support frame and the telescopic steel ring.

[0011] Furthermore, the pressure bending unit includes a fixed support mechanism and a movable support mechanism. The fixed support mechanism is fixedly installed on the frame, and the fixed support mechanism and the mounting base are symmetrically arranged. The movable support mechanism is fixedly installed on the output end of the rotating mechanism, and a limit unit is fixedly installed on the output end of the movable support mechanism.

[0012] Furthermore, the feeding unit includes a lateral displacement mechanism, which is fixedly installed on the frame. A movable table is fixedly installed on the lateral displacement mechanism, and a first bidirectional lead screw mechanism is fixedly installed on the movable table. The first bidirectional lead screw mechanism and the lateral displacement mechanism are arranged perpendicularly, and clamping mechanisms are installed at both ends of the first bidirectional lead screw mechanism through threaded engagement.

[0013] Furthermore, the limiting unit includes a third hydraulic telescopic mechanism, which is fixedly installed on the working end of the movable support mechanism, and a ball bearing mechanism is fixedly installed on the telescopic end of the third hydraulic telescopic mechanism.

[0014] Furthermore, the auxiliary unit includes a second bidirectional lead screw mechanism, which is fixedly mounted on the frame, and roller mechanisms are installed at both ends of the second bidirectional lead screw mechanism through threaded engagement.

[0015] The advantages compared to existing technologies are as follows:

[0016] 1. The first hydraulic telescopic mechanism, the movable frame, the second hydraulic telescopic mechanism, and the support frame can adjust the curvature and support range of the telescopic steel ring, adapt to the processing of table legs with different bending angles, and can provide separate and targeted support for different bending positions of the table leg tubes, improve the stability of the bending positions of the table leg tubes, evenly distribute the stress at the bending positions of the table leg tubes, so that the bending parts of the table leg tubes can deform evenly, reduce defects such as wrinkles and cracks, and improve the bending quality of the table leg tubes.

[0017] 2. During the bending process of the table leg tube, the two sides of the table leg tube are supported and limited by the second bidirectional screw mechanism and roller mechanism, and the upper and lower ends of the bent table leg tube are limited by the third hydraulic telescopic mechanism and ball mechanism to prevent the table leg tube from tilting during the bending process and to ensure the quality and efficiency of the bending of the table leg tube. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a first isometric structural schematic diagram of a table leg bending machine for table and chair processing according to the present invention;

[0020] Figure 2 This utility model describes a table leg bending machine for table and chair processing. Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 3 This is a partial cross-sectional structural diagram of a table leg bending machine for table and chair processing according to the present invention;

[0022] Figure 4 This utility model describes a table leg bending machine for table and chair processing. Figure 3 Enlarged structural diagram at point B;

[0023] Figure 5 This is a second isometric structural schematic diagram of a table leg bending machine for table and chair processing according to the present invention;

[0024] Figure 6 This utility model describes a table leg bending machine for table and chair processing. Figure 5 Enlarged structural diagram at point C.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Frame; 2. Rotating mechanism; 301. Mounting base; 302. Mounting slot; 303. First hydraulic telescopic mechanism; 304. Movable frame; 305. Second hydraulic telescopic mechanism; 306. Support frame; 307. Placement slot; 308. Pressure sensor; 309. Extendable telescopic steel ring; 401. Fixed support mechanism; 402. Movable support mechanism; 501. Lateral displacement mechanism; 502. Movable table; 503. First bidirectional screw mechanism; 504. Clamping mechanism; 601. Third hydraulic telescopic mechanism; 602. Ball bearing mechanism; 701. Second bidirectional screw mechanism; 702. Roller mechanism. Detailed Implementation

[0027] like Figures 1-6As shown, a table leg bending machine for processing tables and chairs includes a frame 1. A feeding unit, an auxiliary unit, a bending support unit, and a rotating mechanism 2 are fixedly installed on the frame 1 in sequence. The rotating mechanism 2 is located in the middle of the side of the frame 1. A pressure bending unit is fixedly installed on the rotating mechanism 2. The feeding unit feeds the table leg tubes, the auxiliary unit provides limiting support for the table leg tubes, the bending support unit supports the bending part of the table leg tubes, the rotating mechanism 2 adjusts the position and angle of the pressure bending unit, and the pressure bending unit applies pressure to the table leg tubes, thus completing the bending operation of the table leg tubes in conjunction with the bending support unit.

[0028] like Figure 1 , Figures 3-6 As shown, the bending support unit includes a mounting base 301 and an extended telescopic steel ring 309. The mounting base 301 is fixedly mounted on the frame 1. Mounting grooves 302 are arranged on the mounting base 301. A telescopic adjustment component is fixedly installed in the mounting grooves 302. A support frame 306 is fixedly installed on the output end of the telescopic adjustment component. The support frame 306 is fixedly connected to the inner side of the extended telescopic steel ring 309. The support frame 306 is arranged on the extended telescopic steel ring 309. The extended telescopic steel ring 309 operates using existing technology. According to the required bending angle of the table leg tube, the telescopic adjustment component drives the support frame 306 to move, adjust the position of the support frame 306, and adjust the size of the extended telescopic steel ring 309, thereby adapting to table leg processing with different bending angles. During the bending process, the telescopic adjustment component enables the extended telescopic steel ring 309 to effectively support the table leg tube according to the bending angle, improving the stability of the table leg tube during the bending process.

[0029] like Figure 3 , Figure 4 , Figure 6As shown, the telescopic adjustment assembly includes a first hydraulic telescopic mechanism 303, which is fixedly installed in the mounting groove 302. A movable frame 304 is fixedly installed on the telescopic end of the first hydraulic telescopic mechanism 303. Two second hydraulic telescopic mechanisms 305 are rotatably installed on the movable frame 304. The telescopic ends of the two second hydraulic telescopic mechanisms 305 are rotatably connected to the two ends of the support frame 306. The first hydraulic telescopic mechanism 303 and the second hydraulic telescopic mechanisms 305 operate using existing technology. During the bending process of the table leg tube, the first hydraulic telescopic mechanism 303 drives the movable frame 304 to move, and the movable frame 304 drives the support frame 306 to move through the second hydraulic telescopic mechanisms 305, thereby adjusting the position of the support frame 306. The dimensions of the telescopic steel ring 309 are adjusted to accommodate bending at different angles. Simultaneously, during bending, based on the bending force and position of the table leg fitting, two second hydraulic telescopic mechanisms 305 push the support frame 306, adjusting its angle. This, in turn, adjusts the curvature and support range of the telescopic steel ring 309, providing separate support for different positions of the bent table leg fitting. This targeted support improves the stability of the bent section, evenly distributes stress, and ensures uniform deformation of the bent portion, reducing defects such as wrinkles and cracks, thus improving the overall bending quality of the table leg fitting.

[0030] like Figure 4 As shown, a placement groove 307 is provided on the side of the support frame 306. A pressure sensor 308 is fixedly installed in the placement groove 307. The pressure sensor 308 is located between the support frame 306 and the telescopic steel ring 309. The pressure sensor 308 operates using existing technology. When the table leg tube is bent, the pressure sensor 308 detects the pressure on the telescopic steel ring 309, thereby detecting the force on the table leg tube during bending. The bending force can be adjusted as needed to avoid table leg breakage or deformation due to excessive pressure, or bending angle not meeting the standard due to insufficient pressure, thus ensuring the efficiency and quality of table leg tube bending.

[0031] like Figure 1 , Figure 2 , Figure 5As shown, the pressure bending unit includes a fixed support mechanism 401 and a movable support mechanism 402. The fixed support mechanism 401 is fixedly installed on the frame 1, and the fixed support mechanism 401 and the mounting base 301 are symmetrically arranged. The movable support mechanism 402 is fixedly installed on the output end of the rotating mechanism 2, and a limit unit is fixedly installed on the output end of the movable support mechanism 402. The fixed support mechanism 401 and the movable support mechanism 402 adopt existing technology. When bending the table leg tube, the fixed support mechanism 401 limits and supports the table leg tube to the bending support unit. The rotating mechanism 2 adjusts the angle of the movable support mechanism 402, and the movable support mechanism 402 pushes the table leg tube at different angles to complete the bending of the table leg tube.

[0032] like Figure 1 , Figure 5 As shown, the feeding unit includes a lateral displacement mechanism 501, which is fixedly mounted on the frame 1. A movable table 502 is fixedly mounted on the lateral displacement mechanism 501, and a first bidirectional screw mechanism 503 is fixedly mounted on the movable table 502. The first bidirectional screw mechanism 503 and the lateral displacement mechanism 501 are arranged perpendicularly. Clamping mechanisms 504 are installed at both ends of the first bidirectional screw mechanism 503 through threaded connection. The first bidirectional screw mechanism 503, the lateral displacement mechanism 501, and the clamping mechanism 504 operate using existing technology. One end of the table leg tube is placed on the clamping mechanism 504, and the clamping mechanism 504 is moved by the first bidirectional screw mechanism 503 to clamp and fix the table leg tube. The lateral displacement mechanism 501 moves the table leg tube through the movable table 502, the first bidirectional screw mechanism 503, and the clamping mechanism 504 to complete the automatic feeding of the table leg tube and ensure the bending efficiency of the table leg tube.

[0033] like Figure 2 As shown, the limiting unit includes a third hydraulic telescopic mechanism 601, which is fixedly installed on the working end of the movable support mechanism 402. A ball bearing mechanism 602 is fixedly installed on the telescopic end of the third hydraulic telescopic mechanism 601. The third hydraulic telescopic mechanism 601 and the ball bearing mechanism 602 operate using existing technology. During the process of the movable support mechanism 402 pushing and bending the table leg tube, the third hydraulic telescopic mechanism 601 drives the ball bearing mechanism 602 to move, so that the ball bearing mechanism 602 fits against the surface of the table leg tube. The third hydraulic telescopic mechanism 601 and the ball bearing mechanism 602 limit the upper and lower ends of the bent table leg tube to prevent the table leg tube from deviating during the bending process. The ball bearing mechanism 602 avoids affecting the bending of the table leg tube, ensuring the quality and efficiency of the bending of the table leg tube.

[0034] like Figure 1 , Figure 5As shown, the auxiliary unit includes a second bidirectional screw mechanism 701, which is fixedly mounted on the frame 1. Roller mechanisms 702 are threadedly installed at both ends of the second bidirectional screw mechanism 701. The second bidirectional screw mechanism 701 and roller mechanisms 702 operate using existing technology. When bending the table leg tube, the roller mechanisms 702 are moved by the second bidirectional screw mechanism 701 according to the size of the table leg tube, causing the roller mechanisms 702 to fit against the table leg tube. The roller mechanisms 702 provide support and limit on both sides of the table leg tube, improving the stability of the table leg tube during bending, reducing its offset, and ensuring the bending quality. The roller mechanisms 702 not only provide limiting support for the table leg tube but also prevent any impact on the loading and movement of the table leg tube.

[0035] Working principle: such as Figure 1 , Figure 5 As shown, one end of the table leg tube is placed on the clamping mechanism 504. According to the size of the table leg tube, the clamping mechanism 504 is moved by the first bidirectional screw mechanism 503. The clamping mechanism 504 clamps and fixes the table leg tube. The lateral displacement mechanism 501 moves the table leg tube through the movable table 502, the first bidirectional screw mechanism 503 and the clamping mechanism 504 to complete the automatic feeding of the table leg tube.

[0036] like Figure 1 , Figure 2 , Figure 5 As shown, the working ends of the fixed support mechanism 401 and the movable support mechanism 402 are attached to the table leg tube. According to the size of the table leg tube, the second bidirectional screw mechanism 701 drives the roller mechanism 702 to move, so that the roller mechanism 702 is attached to the table leg tube. The roller mechanism 702 supports and limits the two sides of the table leg tube. The third hydraulic telescopic mechanism 601 drives the ball mechanism 602 to move, so that the ball mechanism 602 is attached to the surface of the table leg tube. The third hydraulic telescopic mechanism 601 and the ball mechanism 602 limit the upper and lower ends of the bent table leg tube.

[0037] like Figure 3 , Figure 4 , Figure 6 As shown, according to the size of the table leg tube, the movable frame 304 is moved by the first hydraulic telescopic mechanism 303, and the movable frame 304 is moved by the second hydraulic telescopic mechanism 305 to move the support frame 306. The position of the support frame 306 is adjusted, and the extension telescopic steel ring 309 is supported by the support frame 306, so that the extension telescopic steel ring 309 fits onto the table leg tube.

[0038] like Figures 1-6As shown, the angle of the movable support mechanism 402 is adjusted by the rotating mechanism 2, and the movable support mechanism 402 pushes and bends the table leg tube at different angles. The support frame 306 is pushed by two second hydraulic telescopic mechanisms 305, and the angle of the support frame 306 is adjusted. In turn, the arc and support range of the extension telescopic steel ring 309 are adjusted by the support frame 306, so that the extension telescopic steel ring 309 supports the table leg tube according to the bending angle of the table leg tube, and the stress at the bending position of the table leg tube is evenly distributed. During the bending process, the pressure sensor 308 detects the force on the table leg tube when it is bent, and the bending force of the table leg tube can be adjusted as needed to ensure the efficiency and quality of the bending of the table leg tube.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A table leg press brake for table and chair processing, characterized by, Includes a frame (1), on which a feeding unit, an auxiliary unit, a bending support unit and a rotating mechanism (2) are fixedly installed in sequence. The rotating mechanism (2) is located in the middle of the side of the frame (1), and a bending unit is fixedly installed on the rotating mechanism (2). The bending support unit includes a mounting base (301) and an extension and telescopic steel ring (309). The mounting base (301) is fixedly installed on the frame (1). The mounting base (301) has mounting grooves (302) arranged on it. An extension and telescopic adjustment component is fixedly installed in the mounting groove (302). A support frame (306) is fixedly installed on the output end of the extension and telescopic adjustment component. The support frame (306) is fixedly connected to the inner side of the extension and telescopic steel ring (309). The support frame (306) is arranged on the extension and telescopic steel ring (309).

2. The table leg press bender for table and chair processing according to claim 1, characterized in that: The telescopic adjustment assembly includes a first hydraulic telescopic mechanism (303), which is fixedly installed in the mounting groove (302). A movable frame (304) is fixedly installed on the telescopic end of the first hydraulic telescopic mechanism (303). Two second hydraulic telescopic mechanisms (305) are rotatably installed on the movable frame (304). The telescopic ends of the two second hydraulic telescopic mechanisms (305) are rotatably connected to the two ends of the support frame (306).

3. The table leg bender for table and chair processing according to claim 1, characterized in that: The support frame (306) has a placement groove (307) on its side, and a pressure sensor (308) is fixedly installed in the placement groove (307). The pressure sensor (308) is located between the support frame (306) and the telescopic steel ring (309).

4. The table leg bender for table and chair processing according to claim 1, characterized in that: The pressure bending unit includes a fixed support mechanism (401) and a movable support mechanism (402). The fixed support mechanism (401) is fixedly installed on the frame (1). The fixed support mechanism (401) and the mounting base (301) are symmetrically arranged. The movable support mechanism (402) is fixedly installed on the output end of the rotating mechanism (2). A limit unit is fixedly installed on the output end of the movable support mechanism (402).

5. The table leg bender for table and chair processing according to claim 1, characterized in that: The feeding unit includes a lateral displacement mechanism (501), which is fixedly installed on the frame (1). A movable table (502) is fixedly installed on the lateral displacement mechanism (501), and a first bidirectional lead screw mechanism (503) is fixedly installed on the movable table (502). The first bidirectional lead screw mechanism (503) and the lateral displacement mechanism (501) are arranged perpendicularly. Clamping mechanisms (504) are installed at both ends of the first bidirectional lead screw mechanism (503) through threaded engagement.

6. The table leg bender for table and chair processing according to claim 4, characterized in that: The limiting unit includes a third hydraulic telescopic mechanism (601), which is fixedly installed on the working end of the movable support mechanism (402). A ball bearing mechanism (602) is fixedly installed on the telescopic end of the third hydraulic telescopic mechanism (601).

7. The table leg bender for table and chair processing according to claim 1, characterized in that: The auxiliary unit comprises a second bidirectional screw mechanism (701) fixedly installed on the rack (1), and both ends of the second bidirectional screw mechanism (701) are threadedly connected with a roller mechanism (702).

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