CN212144260U - Pipe bending machine for pipe fittings of leisure table and chair - Google Patents

Abstract

The utility model discloses a pipe bender for pipe fittings of leisure tables and chairs, which comprises a base, wherein a pipe bending motor is arranged on the base; the pipe bending motor is connected with a pipe bending seat, and the pipe bending seat is provided with a clamping device; one side of the elbow seat is provided with a hydraulic cylinder, and the hydraulic cylinder is connected with a moving rod; a support piece is arranged on the movable rod, and an automatic lubricating device is arranged on the support piece; two fixed seats are arranged between the supporting piece and the bent pipe seat; each fixed seat is connected with a moving device, and a fixed groove is formed in the side face of each fixed seat; a stabilizer bar is arranged between the support piece and the hydraulic cylinder, and a limiting rod is arranged between the stabilizer bar and the support piece; the top end of gag lever post is provided with the limiting plate, is provided with first photosensitive sensor on the side that is close to support piece on the limiting plate. The utility model discloses not only can improve the return bend effect, still have return bend precision height, convenient to use, stability height, work efficiency height, long service life and the advantage that the rejection rate is low.

Description

Pipe bending machine for pipe fittings of leisure table and chair

Technical Field

The utility model relates to a bending machine, especially the bending machine for leisure table chair pipe fitting.

Background

In the process of processing tables and chairs, the pipe bender is required to be used for bending hollow pipes to different degrees, so that the pipe bender is used for chair legs, handrail pipes and the like of leisure chairs; however, the existing pipe bending machine mainly utilizes the principle of vector pipe bending, and carries out positioning by clamping a pipe fitting and then pipe bending work; however, when the hollow pipe is bent, due to the hollow structure in the hollow pipe, the phenomenon that the pipe deforms due to overlarge clamping force easily occurs in the pipe bending process of the hollow pipe, so that the integral pipe bending effect is poor; moreover, the existing pipe bender mostly adopts a manual feeding mode, but the deviation phenomenon is easy to occur in the manual feeding process, so that the machining precision is low. Therefore, the existing pipe bender has the problems of poor pipe bending effect and low pipe bending precision when the pipe bending work is carried out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leisure table chair bending machine for pipe fitting. The utility model discloses not only can improve the return bend effect, still have the advantage that the return bend precision is high.

The technical scheme of the utility model: the pipe bender for the pipe fittings of the leisure table and chair comprises a base, wherein a pipe bending motor is arranged on the bottom surface of one end part of the base; the pipe bending motor is connected with a pipe bending seat, and the pipe bending seat is provided with a clamping device; one side of the elbow seat is provided with a hydraulic cylinder positioned at the other end of the base, and the hydraulic cylinder is connected with a movable rod; the end part of the movable rod is provided with a supporting piece, and the supporting piece is provided with an automatic lubricating device; the supporting piece is positioned between the elbow seat and the hydraulic cylinder, and two symmetrically arranged fixed seats are arranged between the supporting piece and the elbow seat; the bottom surface of each fixed seat is connected with a moving device, and the side surface of each fixed seat is provided with a fixed groove; a stabilizing rod is arranged between the supporting piece and the hydraulic cylinder, and a limiting rod is arranged between the stabilizing rod and the supporting piece; the top end part of the limiting rod is provided with a limiting plate, and the side surface, close to the support piece, of the limiting plate is provided with a first photosensitive sensor; the pipe bending motor, the clamping device, the hydraulic cylinder and the moving device are all electrically connected with the first photosensitive sensor.

In the pipe bender for the pipe fittings of the leisure table and chair, the clamping device comprises two clamping seats which are symmetrically arranged, and a ball screw is arranged on the bottom surface of each clamping seat; one end of each ball screw is connected with a servo motor; a clamping groove is formed in one side face of each clamping seat and is positioned between the two clamping seats; and a pressure sensor is arranged on the side surface of each clamping groove and is electrically connected with the servo motor.

In the pipe bender for the pipe fittings of the leisure table and chair, the automatic lubricating device comprises an oil supply main pipe positioned in the middle of the supporting piece, and a plurality of oil supply outlet pipes which are uniformly distributed in an annular shape are arranged on the oil supply main pipe; the end part of each oil supply outlet pipe is communicated with the surface of the support; the oil supply main pipe is provided with an electromagnetic valve; a mounting channel is arranged at the position, corresponding to the main oil supply pipe, on the supporting piece, and a sponge layer is sleeved on the surface of the supporting piece; a humidity sensor is arranged between the sponge layer and the supporting piece and is electrically connected with the electromagnetic valve.

In the pipe bender for the pipe fittings of the leisure table and chair, the moving device comprises a moving plate positioned on the bottom surface of the fixed seat, and a moving cylinder is arranged on one side surface of the moving plate; the moving cylinder is connected with a push rod, and the push rod is fixedly connected with the moving plate; the inner wall of the fixed groove is provided with a second photosensitive sensor which is electrically connected with the movable cylinder; the two movable cylinders are symmetrically arranged.

In the pipe bender for the pipe fittings of the leisure table and chair, one end part of the stabilizer bar is provided with the stabilizing seat; the stabilizing seat is arranged on the side wall of the base and is provided with a plurality of adjusting nuts which are uniformly distributed; a plurality of threaded holes which are uniformly distributed are formed in the side surface of the base, and adjusting nuts are arranged in the threaded holes; the top surface of the stabilizer bar and the bottom surface of the limiting plate are arranged on the same horizontal plane.

In the pipe bender for the pipe fittings of the leisure table and chair, the two side surfaces of the limiting plate are respectively provided with the buffer layer, and the thickness of the buffer layer is the same as that of the first photosensitive sensor; and the position of the limiting plate corresponding to the moving rod is provided with a moving channel, and the moving rod is positioned in the moving channel.

Compared with the prior art, the utility model improves the existing pipe bender, and the pipe bending motor and the pipe bending seat are arranged on the base, so that the pipe bending motor is utilized to drive the pipe bending seat to rotate, thereby realizing the pipe bending work; the clamping device is arranged on the elbow seat, so that the pipe fitting for bending can be automatically clamped by the clamping device; the fixed seat and the moving device are arranged on one side in a matched mode, the moving device is used for driving the fixed seats to mutually approach, and then the fixed seat and the clamping device can clamp the pipe fitting at two positions, so that the phenomenon that the pipe fitting cannot be bent due to movement in the clamping process is avoided, and the pipe bending efficiency is improved; by arranging the hydraulic cylinder and the supporting piece, the hydraulic cylinder drives the supporting piece to move, so that when the hollow pipe fitting is bent, the supporting piece can form an internal support for the inner wall of the bent pipe position, the phenomenon that the side wall of the hollow pipe fitting is concave inwards when external clamping pressure is high is avoided, waste products are generated, the rejection rate is reduced, and the pipe bending effect is improved; the arrangement of the supporting piece can also keep the stability of the key hollow position, and the position where the hollow pipe fitting is placed is positioned, so that the pipe bending precision is improved; the automatic lubricating device is arranged on the supporting piece, and the oil supply device is used for supplying oil to the sponge sleeve for lubrication, so that the hollow pipe fitting is convenient to take out and sleeve, and the use is convenient; the stabilizing rod and the limiting plate are arranged between the supporting piece and the hydraulic cylinder, and the stabilizing rod can be used for supporting the moving rod, so that the phenomenon that the middle part of the moving rod falls down due to overlarge length of the moving rod is avoided, and the use stability is improved; the limiting plate can limit one end part of the hollow pipe fitting to be bent, so that the phenomenon that the hollow pipe fitting moves over the head is avoided; the position of the hollow pipe fitting can be positioned, so that the use is convenient; simultaneously, through being provided with photosensitive sensor on the limiting plate, utilize photosensitive sensor to detect whether empty pipe fitting puts into to this acts as start signal, controls the action of whole device, has further made things convenient for the use. In addition, the utility model also improves the stability of clamping by arranging the clamping groove on the clamping seat and arranging the pressure sensor in the clamping groove, so that the clamping seat can be more attached to the surface of the hollow pipe fitting by utilizing the clamping groove; the arrangement of the pressure sensor can avoid the phenomenon that the hollow pipe fitting is clamped and deformed due to overlarge clamping force on the hollow pipe fitting between the two clamping seats, so that the hollow pipe fitting is damaged, and the production cost is reduced; the sponge sleeve can be lubricated in an all-round and uniform manner by arranging the plurality of annular oil supply outlet pipes which are uniformly distributed on the oil supply main pipe; the sponge layer is sleeved on the supporting piece, and the friction force between the hollow pipe fitting and the supporting piece can be ensured by utilizing the sponge sleeve, so that the stability of the hollow pipe fitting during pipe bending is ensured, and the pipe bending effect is further improved; due to the arrangement of the humidity sensor and the electromagnetic valve, the phenomenon that sliding friction is generated between the hollow pipe fitting and the sponge layer to influence use due to excessive oil in the sponge layer can be avoided; the phenomenon that the fixing seat clamps the hollow pipe fitting over the head can be avoided by arranging the second photosensitive sensor; by arranging the stabilizing seat and the adjusting nut, the stability of connection between the stabilizing rod and the base can be ensured, and the structural stability is further improved; through being provided with the buffer layer on the limiting plate, the thickness of buffer layer is the same with photosensitive sensor's thickness, utilizes the buffer layer can form one deck external protection to photosensitive sensor, and then avoids the direct and photosensitive sensor collision of hollow pipe fitting, has prolonged life. Therefore, the utility model discloses not only can improve the return bend effect, still have return bend precision height, convenient to use, stability height, work efficiency height, long service life and the advantage that the rejection rate is low.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a right side view of the present invention;

FIG. 4 is a schematic structural diagram of a limiting plate;

fig. 5 is a schematic view of the internal structure of the support member.

The labels in the figures are: 1-base, 2-elbow motor, 3-elbow seat, 4-clamping device, 5-hydraulic cylinder, 6-movable rod, 7-supporting piece, 8-fixed seat, 9-moving device, 10-fixed groove, 11-stabilizing rod, 12-limiting rod, 13-limiting plate, 14-first photosensitive sensor, 15-clamping seat, 16-ball screw, 17-servo motor, 18-clamping groove, 19-pressure sensor, 20-oil supply main pipe, 21-oil supply outlet pipe, 22-electromagnetic valve, 23-installation channel, 24-sponge layer, 25-humidity sensor, 26-movable plate, 27-moving cylinder, 28-push rod, 29-second photosensitive sensor, 30-stabilizing seat, 31-adjusting nut, 32-buffer layer.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. The pipe bender for the pipe fittings of the leisure table and chair is composed of a base 1 as shown in figures 1 to 5, wherein a pipe bending motor 2 is arranged on the bottom surface of one end part of the base 1; the pipe bending motor 2 is connected with a pipe bending seat 3, and a clamping device 4 is arranged on the pipe bending seat 3; one side of the elbow seat 3 is provided with a hydraulic cylinder 5 positioned at the other end of the base 1, and the hydraulic cylinder 5 is connected with a movable rod 6; a support piece 7 is arranged at the end part of the movable rod 6, and an automatic lubricating device is arranged on the support piece 7; the supporting piece 7 is positioned between the elbow seat 3 and the hydraulic cylinder 5, and two symmetrically arranged fixed seats 8 are arranged between the supporting piece 7 and the elbow seat 3; the bottom surface of each fixed seat 8 is connected with a moving device 9, and the side surface of each fixed seat 8 is provided with a fixed groove 10; a stabilizer bar 11 is arranged between the support 7 and the hydraulic cylinder 5, and a limit rod 12 is arranged between the stabilizer bar 11 and the support 7; a limiting plate 13 is arranged at the top end part of the limiting rod 12, and a first photosensitive sensor 14 is arranged on the side surface, close to the support 7, of the limiting plate 13; the pipe bending motor 2, the clamping device 4, the hydraulic cylinder 5 and the moving device 9 are all electrically connected with the first photosensitive sensor 14.

The clamping device 4 comprises two symmetrically arranged clamping seats 15, and a ball screw 16 is arranged on the bottom surface of each clamping seat 15; one end of each ball screw 16 is connected with a servo motor 17; a clamping groove 18 is formed in one side face of each clamping seat 15, and the clamping groove 18 is located between the two clamping seats 15; a pressure sensor 19 is arranged on the side surface of each clamping groove 18, and the pressure sensors 19 are electrically connected with the servo motor 17; the automatic lubricating device comprises an oil supply main pipe 20 positioned in the middle of the supporting piece 7, and a plurality of annular oil supply outlet pipes 21 which are uniformly distributed are arranged on the oil supply main pipe 20; the end of each oil supply outlet pipe 21 is communicated with the surface of the support 7; the oil supply main pipe 20 is provided with an electromagnetic valve 22; a mounting channel 23 is arranged at the position, corresponding to the main oil supply pipe 20, on the supporting member 7, and a sponge layer 24 is sleeved on the surface of the supporting member 7; a humidity sensor 25 is arranged between the sponge layer 24 and the support 7, and the humidity sensor 25 is electrically connected with the electromagnetic valve 22; the moving device 9 comprises a moving plate 26 positioned on the bottom surface of the fixed seat 8, and a moving cylinder 27 is arranged on one side surface of the moving plate 26; the moving cylinder 27 is connected with a push rod 28, and the push rod 28 is fixedly connected with the moving plate 26; a second photosensitive sensor 29 is arranged on the inner wall of the fixed groove 10, and the second photosensitive sensor 29 is electrically connected with the movable cylinder 27; the two moving cylinders 27 are symmetrically arranged; one end of the stabilizer bar 11 is provided with a stabilizer base 30; the stabilizing base 30 is arranged on the side wall of the base 1, and a plurality of adjusting nuts 31 which are uniformly distributed are arranged on the stabilizing base 30; a plurality of threaded holes which are uniformly distributed are formed in the side surface of the base 1, and adjusting nuts 31 are arranged in the threaded holes; the top surface of the stabilizer bar 11 and the bottom surface of the limiting plate 13 are arranged on the same horizontal plane; two side surfaces of the limiting plate 13 are provided with buffer layers 32, and the thickness of each buffer layer 32 is the same as that of the first photosensitive sensor 14; and a moving channel is arranged on the position, corresponding to the moving rod 6, of the limiting plate 13, and the moving rod 6 is positioned in the moving channel.

The working principle is as follows: the first photosensitive sensor 14 and the second photosensitive sensor 29 used in the utility model are all the photosensitive sensors of LXD/GB5-AIE, LXD/GB3-A1DPS or LS560 and other models; the pressure sensor 19 adopts a pressure sensor of PX309-200A5V, PXM600MU-350 BARLV or PXM600MU-70 BARLV model and the like; the humidity sensor 25 is a CTH89-PEN-RED, HX71-MA or HX71-MKI humidity sensor.

When in use, the whole device is connected with an external power supply to be electrified and started, thereby enabling the first photosensor 14, the pressure sensor 19 and the second photosensor 29 to all activate automatically, then the hollow pipe fitting to be bent is sleeved into the supporting piece 7 from the direction of the pipe bending seat 3 and pushed to move towards the direction of the limit plate 13, when the hollow pipe is in contact with the surface of the limit plate 13, the first photosensor 14 cannot detect light, so that the normally closed switch on the first photosensor 14 is turned on, so that the hydraulic cylinder 5 is started first, the hydraulic cylinder 5 drives the movable rod 6 to move towards the fixed seat 8 after being started, the movable rod 6 drives the supporting piece 7 to move after moving, so that the support 7 can move the hollow pipes together, and the support 7 can move the hollow pipes together between the clamping devices 4; then, the servo motor 17 and the moving cylinder 27 are controlled to be started simultaneously, the servo motor 17 drives the ball screw 16 to rotate after being started, the ball screw 16 rotates to drive the clamping base 15 to move towards the other clamping base 15, so that the two clamping bases 15 are clamped mutually, and one part of the hollow pipe fitting can be clamped and fixed by the two clamping bases 15; during the clamping process, the pressure sensor 19 detects a pressure value signal, the pressure sensor 19 sends the pressure value signal to a controller (the controller is located on the side surface of the base 1 and adopts a programmable controller of FX2C-20MRD, Cortex-R8, Cortex-M7 or the like), the controller compares the pressure value signal sent by the pressure sensor 19 with a set value (the set value is the deformation value of the pipe fitting of the bent pipe), and when the pressure value signal is the same as the set value, the controller controls the servo motor 17 to stop, so that the position of the clamping seat 15 is fixed; when the moving cylinder 27 is started, the hole is punched, the pushing rod 28 moves to drive the moving plate 26 to move, so that the moving plate 26 can drive the fixing seats 8 to move, the two fixing seats 8 are close to each other, and the other part of the hollow pipe fitting can be clamped and fixed by the two fixing seats 8; when the hollow pipe enters the fixing groove 10 on the fixing seat 8 and contacts with the side wall of the fixing groove 10, the second photosensitive sensor 29 in the fixing groove 10 cannot detect light, so that the moving cylinder 27 is suspended; then controlling the forward start of the pipe bending motor 2, driving the pipe bending seat 3 to rotate after the forward start of the pipe bending motor 2, and driving the clamping device 4 and the hollow pipe fitting clamped by the clamping device 4 to rotate together by the rotation of the pipe bending seat 3, thereby completing pipe bending; in the pipe bending process, the supporting piece 7 has certain flexibility, so that the supporting piece 7 can support the inner wall of a pipe bending point, the phenomenon that the inner wall of a bent pipe is sunken in the pipe bending process is avoided, the pipe bending effect is improved, and the rejection rate is reduced; after the pipe bending is finished, the servo motor 17 is controlled to be started reversely and the movable air cylinder 27 is controlled to be stopped, after the servo motor 17 is started reversely, the two clamping seats 15 are separated from each other, so that the pipe bending motor 2 can drive the pipe bending seat 3 to rotate reversely after being started reversely, the initial position is returned, and the hollow pipe fitting is loosened; after the moving cylinder 27 stops, the moving plate 26 is driven to move away from each other, so that the fixed seats 8 move away from each other, the two fixed seats 8 can loosen the hollow pipe fitting, the hollow pipe fitting finished by pipe bending can be taken down, and then the pipe bending motor 2 is controlled to be started reversely and the hydraulic cylinder 5 is controlled to stop; the pipe bending motor 2 can drive the pipe bending seat 3 to rotate reversely after being started reversely, so that the pipe bending motor returns to an initial position, and the hydraulic cylinder 5 can drive the supporting piece 7 to move towards the limiting plate 13 after being stopped, so that one-time complete pipe bending work is completed, and the pipe bending is completed.

Claims (6)

1. Bending machine for leisure table chair pipe fitting, its characterized in that: comprises a base (1), wherein a bent pipe motor (2) is arranged on the bottom surface of one end part of the base (1); the pipe bending motor (2) is connected with a pipe bending seat (3), and the pipe bending seat (3) is provided with a clamping device (4); one side of the elbow seat (3) is provided with a hydraulic cylinder (5) positioned at the other end of the base (1), and the hydraulic cylinder (5) is connected with a movable rod (6); a support piece (7) is arranged at the end part of the movable rod (6), and an automatic lubricating device is arranged on the support piece (7); the supporting piece (7) is positioned between the elbow seat (3) and the hydraulic cylinder (5), and two symmetrically arranged fixed seats (8) are arranged between the supporting piece (7) and the elbow seat (3); the bottom surface of each fixed seat (8) is connected with a moving device (9), and the side surface of each fixed seat (8) is provided with a fixed groove (10); a stabilizer bar (11) is arranged between the support piece (7) and the hydraulic cylinder (5), and a limiting rod (12) is arranged between the stabilizer bar (11) and the support piece (7); a limiting plate (13) is arranged at the top end part of the limiting rod (12), and a first photosensitive sensor (14) is arranged on the side surface, close to the supporting piece (7), of the limiting plate (13); the pipe bending motor (2), the clamping device (4), the hydraulic cylinder (5) and the moving device (9) are all electrically connected with the first photosensitive sensor (14).

2. The bending machine for the pipe fittings of the leisure table and chair according to claim 1, characterized in that: the clamping device (4) comprises two symmetrically arranged clamping seats (15), and a ball screw (16) is arranged on the bottom surface of each clamping seat (15); one end part of each ball screw (16) is connected with a servo motor (17); a clamping groove (18) is formed in one side face of each clamping seat (15), and the clamping groove (18) is located between the two clamping seats (15); and a pressure sensor (19) is arranged on the side surface of each clamping groove (18), and the pressure sensors (19) are electrically connected with the servo motor (17).

3. The bending machine for the pipe fittings of the leisure table and chair according to claim 1, characterized in that: the automatic lubricating device comprises an oil supply main pipe (20) positioned in the middle of the supporting piece (7), and a plurality of oil supply outlet pipes (21) which are uniformly distributed in an annular shape are arranged on the oil supply main pipe (20); the end part of each oil supply outlet pipe (21) is communicated with the surface of the support (7); the main oil supply pipe (20) is provided with an electromagnetic valve (22); a mounting channel (23) is arranged at the position, corresponding to the main oil supply pipe (20), of the supporting piece (7), and a sponge layer (24) is sleeved on the surface of the supporting piece (7); a humidity sensor (25) is arranged between the sponge layer (24) and the support piece (7), and the humidity sensor (25) is electrically connected with the electromagnetic valve (22).

4. The bending machine for the pipe fittings of the leisure table and chair according to claim 1, characterized in that: the moving device (9) comprises a moving plate (26) positioned on the bottom surface of the fixed seat (8), and a moving cylinder (27) is arranged on one side surface of the moving plate (26); a push rod (28) is connected to the moving cylinder (27), and the push rod (28) is fixedly connected with the moving plate (26); a second photosensitive sensor (29) is arranged on the inner wall of the fixing groove (10), and the second photosensitive sensor (29) is electrically connected with the moving cylinder (27); the two moving cylinders (27) are symmetrically arranged.

5. The bending machine for the pipe fittings of the leisure table and chair according to claim 1, characterized in that: one end part of the stabilizer bar (11) is provided with a stabilizing seat (30); the stabilizing seat (30) is arranged on the side wall of the base (1), and a plurality of adjusting nuts (31) which are uniformly distributed are arranged on the stabilizing seat (30); a plurality of threaded holes which are uniformly distributed are formed in the side surface of the base (1), and adjusting nuts (31) are arranged in the threaded holes; the top surface of the stabilizer bar (11) and the bottom surface of the limiting plate (13) are arranged on the same horizontal plane.

6. The bender for leisure table and chair tubes according to any one of claims 1 to 5, wherein: buffer layers (32) are arranged on two side faces of the limiting plate (13), and the thickness of each buffer layer (32) is the same as that of the first photosensitive sensor (14); and a moving channel is arranged on the position, corresponding to the moving rod (6), of the limiting plate (13), and the moving rod (6) is positioned in the moving channel.

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