Multi-station composite bending machine for square-tube-shaped multi-bending piece

The multi-station composite bending machine for square tubes and multiple bending parts utilizes the cooperation of polygonal plates, sliders, straight grooves, fixed columns, turntables, and gear grooves to achieve automated position adjustment and feeding, solving the problems of slow manual adjustment and safety risks in existing technologies, and improving production efficiency.

CN223970677UActive Publication Date: 2026-03-06PULI INTELLIGENT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing square tube composite bending machines require manual adjustment of position after the first bend, which is slow, poses safety risks, and wastes human resources.

Method used

A composite bending machine for multi-station square tube multi-bending parts was designed. It uses a combination of polygonal plates, sliders, straight grooves, fixed columns and turntables to achieve automated position adjustment and automatic feeding through gear and tooth groove transmission.

Benefits of technology

It achieves automatic position adjustment and automatic feeding during multiple bending processes, improving production efficiency and reducing the safety risks of manual intervention.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of composite bending machines, and discloses a composite bending machine for a multi-station square-tube-shaped multi-bending piece, which comprises a working table, a fixed block is fixedly arranged at the top of the working table, a first air cylinder is arranged at the bottom of the working table, a first sliding groove and an arc-shaped groove are respectively arranged at the top of the working table, and a second air cylinder is arranged at the bottom of the working table. A first sliding block is slidably connected to the inner wall of the first sliding groove, a first motor is arranged on the outer wall of the workbench, and through cooperative use of a polygonal plate, a second sliding block, a polygonal groove, a straight opening groove, a fixing column and a rotary disc, the effect that the polygonal plate fixes a second square pipe through the second sliding block, the polygonal groove, the straight opening groove, the fixing column and the rotary disc is achieved; and meanwhile, through matched transmission of a second gear and a second tooth groove, steering of the second gear and the second tooth groove when the second square pipe is fixed through the polygonal plate is achieved, and therefore the problem that in existing equipment, the direction of the square pipe needs to be manually adjusted is solved.
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Description

Technical Field

[0001] This utility model relates to the field of composite bending machine technology, specifically a composite bending machine for multi-station square tube multi-bending parts. Background Technology

[0002] The square tube composite bending machine is a multi-process, high-precision bending processing equipment specifically designed for square or rectangular tubes. It is mainly used to bend metal tubes into complex shapes, arcs, multi-segment folds, etc.

[0003] Currently, after the first bending of a square tube, the composite bending machine requires manual adjustment to prepare for the second bending. However, manual adjustment is slow and there is a risk of workers' hands being accidentally injured by the machine, which wastes human resources. Therefore, we provide a multi-station composite bending machine for multiple bending parts of square tubes. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a composite bending machine for multi-station square tube multi-bending parts, which has the advantages of multiple bending with steering and automatic feeding, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a composite bending machine for multi-station square tube multi-bending parts, including a worktable, a fixing block fixedly installed on the top of the worktable, a cylinder one provided at the bottom of the worktable, a sliding groove and an arc groove respectively opened on the top of the worktable, a slider one slidably connected to the inner wall of the sliding groove one, a motor one provided on the outer wall of the worktable, a bending block and a cylinder one fixedly sleeved on the outer edge of the output shaft of the motor one, one end of a cylinder two fixedly installed on the top of the bending block, a fixing claw fixedly installed on the telescopic end of the cylinder two, a square tube one provided on the outer wall of the cylinder one, a feeding component provided on the top of the fixing block, and a rotating component provided on the top of the slider one;

[0006] The rotating assembly includes a cylinder three, a circular plate fixedly mounted on the outer wall of the cylinder three, a polygonal groove formed on the inner wall of the circular plate, a turntable rotatably connected to the outer wall of the circular plate, a straight groove formed on the outer wall of the turntable, a toothed groove formed on the outer wall of the turntable, a polygonal plate formed on the inner wall of the turntable, a fixed column and a slider two fixedly mounted on the outer wall of the polygonal plate, a motor three fixedly mounted on the outer wall of the cylinder three, a gear one fixedly sleeved on the outer edge of the output shaft of the motor three, a motor four fixedly mounted on the top of the slider one, a gear two fixedly mounted on the outer edge of the output shaft of the motor four, and a toothed groove two meshing on the outer edge of the gear two;

[0007] As a preferred technical solution of this utility model: the feeding assembly includes a square box, the inner wall of which has a square groove, a cylinder II fixedly mounted on the outer wall of the square box, one end of a spring fixedly connected to the outer wall of the cylinder II, the other end of the spring fixedly connected to a sleeve, one end of a push rod I fixedly connected to the outer wall of the sleeve, the other end of the push rod I fixedly connected to a push plate body, a connecting rod I fixedly mounted on the outer wall of the square box, a sliding groove II opened on the outer wall of the connecting rod I, a square tube III fixedly mounted on the outer wall of the square box, a motor II fixedly installed at the bottom of the square tube III, a rotating plate fixedly sleeved on the outer edge of the output shaft of the motor II, a connecting column fixedly mounted on the top of the rotating plate, a push rod II slidably connected to the outer wall of the connecting column, one end of the connecting rod II fixedly connected to the outer wall of the push rod II, a square column fixedly mounted on the other end of the connecting rod II, and a square tube II provided at the top of the square groove.

[0008] As a preferred technical solution of this utility model: there are two springs, and the two springs are symmetrically arranged with the push rod one as the center. The outer wall shape of the push plate body is the same as the inner wall shape of the slide groove two, and the outer wall of the push plate body and the inner wall of the slide groove two are fitted and slidably arranged.

[0009] As a preferred technical solution of this utility model: the outer edge shape of the gear one is the same as the outer edge shape of the tooth groove one, and the outer edge of the gear one and the outer edge of the tooth groove one are meshed.

[0010] As a preferred technical solution of this utility model: the number of straight grooves and fixed columns are six, and each straight groove and fixed column is a sliding arrangement.

[0011] As a preferred technical solution of this utility model: the number of polygonal plates and sliders is six, and the six polygonal plates and sliders are arranged as a group to slide against the inner wall of the polygonal groove.

[0012] As a preferred technical solution of this utility model: the bottom shape of the bending block is the same as the inner wall shape of the arc groove, and the bottom of the bending block is slidably fitted to the inner wall of the arc groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This multi-station composite bending machine for square tubes and multiple bending parts achieves the effect of fixing the square tube by the polygonal plate, slider two, polygonal groove, straight groove, fixed column, and turntable through the coordinated use of polygonal plate, slider two, polygonal groove, straight groove, fixed column, and turntable. At the same time, through the coordinated transmission of gear two and toothed groove two, the gear two and toothed groove two can be rotated when the polygonal plate fixes the square tube, thus solving the problem of manual adjustment of the square tube's orientation in existing equipment.

[0015] 2. This multi-station composite bending machine for square tubes and multiple bending parts uses the coordinated transmission of a rotating plate, connecting column, push rod 2, connecting rod 2, and square column to push square tube 2 into the inner cavity of the lower cylinder 3. After the square tube 2 is conveyed into the inner cavity of cylinder 3, the spring rebound pulls push rod 1 and drives the push plate body to move. The push plate body then drives square tube 2 to move. Through the rotating plate, connecting column, push rod 2, connecting rod 2, and square column, subsequent square tubes 2 can be pushed into the inner cavity of cylinder 3 in sequence, thus realizing automated feeding. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the feeding component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the slider structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the rotating component structure of this utility model.

[0021] In the diagram: 1. Workbench; 2. Fixing block; 3. Cylinder 1; 4. Slide 1; 5. Arc groove; 6. Slider 1; 7. Motor 1; 8. Bending block; 9. Cylinder 2; 10. Fixing claw; 11. Cylinder 1; 12. Square tube 1; 13. Feeding assembly; 14. Rotating assembly; 1301. Square box; 1302. Square groove; 1303. Cylinder 2; 1304. Spring; 1305. Sleeve; 1306. Slide 2; 1307. Push rod 1; 1308. Connecting rod 1; 1309. Push plate body; 1310. Motor 2; 1311. 1312. Rotating plate; 1313. Connecting column; 1314. Push rod II; 1315. Connecting rod II; 1316. Square column; 1317. Square tube II; 1318. Square tube III; 1401. Cylindrical III; 1402. Circular plate; 1403. Polygonal groove; 1404. Turntable; 1405. Straight groove; 1406. Gear groove I; 1407. Polygonal plate; 1408. Fixed column; 1409. Slider II; 1410. Motor III; 1411. Gear I; 1412. Motor IV; 1413. Gear II; 1414. Gear groove II. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 A composite bending machine for multi-station square tube-shaped bending parts includes a worktable 1, a fixed block 2 fixedly installed on the top of the worktable 1, a cylinder 3 provided at the bottom of the worktable 1, a slide groove 4 and an arc groove 5 respectively opened on the top of the worktable 1, a slider 6 slidably connected to the inner wall of the slide groove 4, a motor 7 provided on the outer wall of the worktable 1, a bending block 8 and a cylinder 11 fixedly sleeved on the outer edge of the output shaft of the motor 7, one end of a cylinder 9 fixedly installed on the top of the bending block 8, a fixed claw 10 fixedly installed on the telescopic end of the cylinder 9, a square tube 12 provided on the outer wall of the cylinder 11, a feeding assembly 13 provided on the top of the fixed block 2, and a rotating assembly 14 provided on the top of the slider 6.

[0024] The rotating assembly 14 includes a cylinder 1401, a circular plate 1402 fixedly mounted on the outer wall of the cylinder 1401, a polygonal groove 1403 formed on the inner wall of the circular plate 1402, a turntable 1404 rotatably connected to the outer wall of the circular plate 1402, a straight groove 1405 formed on the outer wall of the turntable 1404, a toothed groove 1406 formed on the outer wall of the turntable 1404, a polygonal plate 1407 formed on the inner wall of the turntable 1404, a fixed post 1408 and a slider 1409 fixedly mounted on the outer wall of the polygonal plate 1407, a motor 1410 fixedly mounted on the outer wall of the cylinder 1401, a gear 1411 fixedly sleeved on the outer edge of the output shaft of the motor 1410, a motor 1412 fixedly mounted on the top of the slider 16, a gear 1413 fixedly mounted on the outer edge of the output shaft of the motor 1412, and a toothed groove 1414 meshing on the outer edge of the gear 1413.

[0025] In the above structure, by setting the rotating component 14, the motor 1412 is started, which causes the outer edge of the output shaft of the motor 1412 to drive the gear 1413 to rotate. The rotating gear 1413 meshes with the outer edge of the tooth groove 1414, so that the entire rotating component 14 will also rotate when the tooth groove 1414 rotates.

[0026] In a preferred embodiment: the feeding assembly 13 includes a square box 1301, the inner wall of which is provided with a square groove 1302, a cylinder 1303 is fixedly mounted on the outer wall of the square box 1301, one end of a spring 1304 is fixedly connected to the outer wall of the cylinder 1303, the other end of the spring 1304 is fixedly connected to a sleeve 1305, one end of a push rod 1307 is fixedly connected to the outer wall of the sleeve 1305, the other end of the push rod 1307 is fixedly connected to a push plate body 1309, a connecting rod 1308 is fixedly mounted on the outer wall of the square box 1301, and the outer wall of the connecting rod 1308... A sliding groove 1306 is provided. A square tube 1317 is fixedly mounted on the outer wall of the square box 1301. A motor 1310 is fixedly installed at the bottom of the square tube 1317. A rotating plate 1311 is fixedly sleeved on the outer edge of the output shaft of the motor 1310. A connecting column 1312 is fixedly mounted on the top of the rotating plate 1311. A push rod 1313 is slidably connected to the outer wall of the connecting column 1312. One end of a connecting rod 1314 is fixedly connected to the outer wall of the push rod 1313. A square column 1315 is fixedly installed at the other end of the connecting rod 1314. A square tube 1316 is provided at the top of the square groove 1302.

[0027] In a preferred embodiment: there are two springs 1304, and the two springs 1304 are symmetrically arranged with the push rod 1307 as the center. The outer wall shape of the push plate body 1309 is the same as the inner wall shape of the slide groove 1306, and the outer wall of the push plate body 1309 and the inner wall of the slide groove 1306 are slidably fitted together.

[0028] In the above structure, by configuring the spring 1304, the push plate body 1309, and the square tube 1317, the outer edge of the output shaft of the motor 1310 drives the rotating plate 1311 to rotate. The rotating plate 1311 then drives the connecting column 1312 to slide left and right along the inner wall of the push rod 1313. As the connecting column 1312 slides along the inner wall of the push rod 1313, it drives the connecting rod 1314 to reciprocate. This reciprocating motion of the connecting rod 1314 drives the square column 1315 to push along the inner wall of the square tube 1317. This causes the connecting rod 1314 to push the square column 1315 closer to the square tube 1316 in the inner wall of the square box 1301, thus enabling the square column 1315 to push the square tube 1316 to the next station. After one square tube 1316 is pushed to the next station, the sleeve 1305, under the tension of the two springs 1304, will drive the push rod 1307 to push the push plate body 1309, so that the push plate body 1309 will push the next square tube 1316 along the inner wall of the slide groove 1306 to align with the square tube 1317.

[0029] In a preferred embodiment: the outer edge shape of gear 1411 is the same as the outer edge shape of tooth groove 1406, and the outer edge of gear 1411 is meshed with the outer edge of tooth groove 1406.

[0030] In the above structure, by setting gear 1411 and tooth groove 1406, gear 1411 rotates under the drive of motor 1410, so that the outer edge of gear 1411 meshes with the outer wall of tooth groove 1406 and rotates.

[0031] In a preferred embodiment: there are six straight grooves 1405 and six fixed posts 1408, and each straight groove 1405 and fixed post 1408 is a sliding arrangement;

[0032] In the above structure, by setting the straight grooves 1405 and the fixed posts 1408, when the turntable 1404 rotates, it will drive the six straight grooves 1405 to rotate, so that when the six straight grooves 1405 rotate, the outer walls of the six fixed posts 1408 that are in contact with the inner walls of the six straight grooves 1405 will slide along the inner wall direction of the six straight grooves 1405.

[0033] In a preferred embodiment: there are six polygonal plates 1407 and six sliders 1409, and the six polygonal plates 1407 and six sliders 1409 are arranged as a group to slide against the inner wall of the polygonal groove 1403.

[0034] In the above structure, by setting up the polygonal plate 1407 and the slider 1409, the six polygonal plates 1407 will drive the six fixed columns 1408 to slide relative to each other along the inner wall of the polygonal groove 1403.

[0035] In a preferred embodiment: the bottom shape of the bending block 8 is the same as the inner wall shape of the arc groove 5, and the bottom of the bending block 8 is slidably fitted to the inner wall of the arc groove 5.

[0036] In the above structure, by setting the bending block 8 and the arc groove 5, the bottom of the bending block 8 will slide along the inner wall of the arc groove 5 under the drive of the square tube 12.

[0037] Working principle: When the equipment is in use, starting motor 1310 causes the outer edge of the output shaft of motor 1310 to drive rotating plate 1311 to rotate. The rotating plate 1311 drives connecting column 1312 to slide left and right along the inner wall of push rod 1313. As connecting column 1312 slides along the inner wall of push rod 1313, it drives connecting rod 1314 to reciprocate. As connecting rod 1314 reciprocates, it drives square column 1315 to push along the inner wall of square tube 1317. This pushes square column 1315 towards square tube 1316 in the inner wall of square box 1301, thus enabling square column 1315 to push square tube 1316 through the inner cavity of cylinder 1401 to the next work station.

[0038] By starting motor 3 1410, gear 1411 rotates under the transmission of motor 3 1410. Its outer edge meshes with the outer wall of tooth groove 1406, causing tooth groove 1406 to drive turntable 1404 to rotate. When turntable 1404 rotates, it causes six straight grooves 1405 to slide against the inner wall of six fixed posts 1408. The sliding fixed posts 1408 drive six polygonal plates 1407 to slide. The six polygonal plates 1407 drive the six fixed posts 1408 to slide relative to each other along the inner wall of polygonal groove 1403. The six relatively sliding polygonal plates 1407 then come into contact with and are fixed against the outer wall of square tube 2 1316.

[0039] Then, by starting cylinder 3, the telescopic end of cylinder 3 will drive slider 6 to slide along the inner wall of slide groove 4, thereby moving the entire rotating assembly 14. Then, by starting cylinder 9, the telescopic end of cylinder 9 will drive the fixing claw 10 to press against the fixed square tube 1316. Then, by starting motor 7, the outer edge of the output shaft of motor 7 will drive cylinder 11 and square tube 12 to rotate, so that the bottom of square tube 12 will slide along the inner wall of arc groove 5, thereby achieving the first bending of square tube 1316.

[0040] Then, by restarting cylinder 29, the extension end of cylinder 29 will drive the fixed claw 10 to reset. Then, by reversing the power output shaft of motor 17, square tube 12 will reset. Then, by starting motor 41412, the outer edge of the output shaft of motor 41412 will drive gear 21413 to rotate. The rotating gear 21413 will mesh with the outer edge of tooth groove 21414, thereby causing cylinder 31401 to drive cylinder 31401, circular plate 1402, polygonal groove 1403, straight groove 1405, tooth groove 1406, polygonal plate 1407, fixed column 1408, slider 21409, motor 31410 and gear 111 to rotate. This will cause the fixed square tube 21316 to turn. Then, by performing the reverse operation, the other side of square tube 21316 can be bent a second time.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station compound bending machine for multi-bend square tubulars, comprising a worktable (1), characterized in that: The top of table (1) is fixedly installed with fixed block (2), the bottom of table (1) is equipped with cylinder one (3), the top of table (1) is respectively equipped with sliding slot one (4) and arc slot (5), the inner wall of sliding slot one (4) is slidably connected with sliding block one (6), the outer wall of table (1) is equipped with motor one (7), the output shaft outer of motor one (7) is fixedly sleeved with bending block (8) and cylinder one (11), the top of bending block (8) is fixedly installed with one end of cylinder two (9), the telescopic end of cylinder two (9) is fixedly installed with fixed claw (10), the outer wall of cylinder one (11) is equipped with square tube one (12), the top of fixed block (2) is equipped with feeding assembly (13), the top of sliding block one (6) is equipped with rotating assembly (14); The rotating assembly (14) includes cylinder three (1401), the outer wall of cylinder three (1401) is fixedly installed with circular plate (1402), the inner wall of circular plate (1402) is provided with polygonal groove (1403), the outer wall of circular plate (1402) is rotatably connected with turntable (1404), the outer wall of turntable (1404) is provided with straight slot (1405), the outer wall of turntable (1404) is provided with gear slot one (1406), the inner wall of turntable (1404) is provided with polygonal plate (1407), the outer wall of polygonal plate (1407) is respectively fixedly provided with fixed column (1408) and sliding block two (1409), the outer wall of cylinder three (1401) is fixedly provided with motor three (1410), the output shaft outer of motor three (1410) is fixedly sleeved with gear one (1411), the top of sliding block one (6) is fixedly installed with motor four (1412), the output shaft outer of motor four (1412) is fixedly installed with gear two (1413), the outer rim of gear two (1413) is engaged with gear slot two (1414).

2. A multi-station compound tube bending machine for bending a multi-bend tube having a square cross-section according to claim 1, characterized in that: The upper feeding assembly (13) comprises a square box (1301), a square groove (1302) is formed in the inner wall of the square box (1301), a cylindrical part two (1303) is fixedly assembled to the outer wall of the square box (1301), one end of a spring (1304) is fixedly connected to the outer wall of the cylindrical part two (1303), the other end of the spring (1304) is fixedly connected to a sleeve (1305), one end of a push rod one (1307) is fixedly connected to the outer wall of the sleeve (1305), the other end of the push rod one (1307) is fixedly connected to a push plate body (1309), a connecting rod one (1308) is fixedly assembled to the outer wall of the square box (1301), a sliding groove two (1306) is formed in the outer wall of the connecting rod one (1308), a square tube three (1317) is fixedly assembled to the outer wall of the square box (1301), a motor two (1310) is fixedly installed at the bottom of the square tube three (1317), a rotating plate (1311) is fixedly sleeved to the output shaft outer side of the motor two (1310), a connecting column (1312) is fixedly assembled to the top of the rotating plate (1311), a push rod two (1313) is slidably connected to the outer wall of the connecting column (1312), one end of a connecting rod two (1314) is fixedly connected to the outer wall of the push rod two (1313), a square column (1315) is fixedly installed at the other end of the connecting rod two (1314), and a square tube two (1316) is arranged at the top of the square groove (1302).

3. A multi-station compound tube bending machine for bending a multi-bend tube shaped workpiece according to claim 2, characterized in that: The two springs (1304) are symmetrically arranged with the push rod one (1307) as the center, the outer wall shape of the push plate body (1309) is the same as that of the sliding groove two (1306), and the push plate body (1309) is slidably arranged in the sliding groove two (1306).

4. A multi-station square-tube multi-bend part compound bending machine according to claim 1, characterized in that: The outer shape of the gear one (1411) is the same as that of the gear slot one (1406), and the gear one (1411) is arranged in the gear slot one (1406).

5. A multi-station compound tube bending machine for bending a multi-bend tube having a square cross-section as claimed in claim 1, wherein: The number of the straight mouth grooves (1405) and the fixed columns (1408) is six respectively, and each straight mouth groove (1405) and fixed column (1408) is slidably arranged.

6. A multi-station square-tube multi-bend part compound bending machine according to claim 1, characterized in that: The number of the polygonal plates (1407) and the sliding blocks two (1409) is six respectively, and the six polygonal plates (1407) and the sliding blocks two (1409) are slidably arranged in the inner wall of the polygonal groove (1403).

7. A multi-station compound tube bending machine for bending a multi-bend tube having a square cross-section as claimed in claim 1, wherein: The bottom shape of the bending block (8) is the same as that of the inner wall of the arc-shaped groove (5), and the bottom of the bending block (8) is slidably arranged in the inner wall of the arc-shaped groove (5).