CN216801415U - Pipe end forming equipment for bent pipe - Google Patents

Abstract

The utility model discloses a pipe end forming device for bending a pipe, which comprises: the forming mechanism comprises a clamping assembly, a forming assembly and a driving assembly, the clamping assembly comprises an inner mold and an outer mold, the inner mold comprises a plurality of inner mold monomers and core grooves formed among the inner mold monomers, and the outer mold comprises a plurality of outer mold monomers; the forming assembly comprises a mandrel; the driving assembly comprises a first driving assembly and a second driving assembly; the conveying mechanism comprises a gripper and a third driving assembly; the feeding mechanism comprises a feeding vibration disc, a discharging hole, a positioning assembly and a turnover assembly, wherein the turnover assembly is provided with a plug-in part. The pipe end forming equipment disclosed by the utility model not only can realize the posture adjustment of the bent pipe and improve the processing efficiency, but also can improve the precision of the processing and forming of the pipe end of the bent pipe.

Description

Pipe end forming equipment for bent pipe

Technical Field

The utility model relates to the field of pipe end forming equipment, in particular to pipe end forming equipment for a bent pipe.

Background

At present, because part of the bent pipe is designed to be a clamping and pressing pipe fitting, after the bent pipe is formed, the pipe end of the bent pipe needs to be further processed. The processing device in the prior art outputs the bent pipe one by one through the feeding vibration disc, and then the bent pipe is clamped to the pipe end forming equipment through the mechanical arm to be processed.

However, in an actual machining process, the machining apparatus described above has the following problems: (1) the posture of the bent pipe directly output by the feeding vibration disc cannot be matched with pipe end forming equipment, and the bent pipe needs to be adjusted by a manipulator, so that the processing efficiency is influenced, and the production cost is increased; (2) during machining, the inner die rotates in the pipe end ceaselessly, the outer die needs to have a certain distance with the periphery of the pipe end of the bent pipe so as to expand the pipe end outwards, the bent pipe cannot be effectively fixed by the outer die and the outer die, the bent pipe needs to be clamped by manpower or a manipulator in the whole process, the cost of manpower and material resources is greatly increased, and meanwhile, the forming quality of the pipe end of the bent pipe can be influenced if the bent pipe is not clamped firmly by the manpower or the manipulator; (3) the outer die is clamped inwards through the clamping plate, the outer die can only be matched with the bent pipe with a fixed size due to the fixed size of the clamping plate, and dies with different sizes are required to be arranged when the bent pipes with different pipe diameters are processed, so that the cost is further increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a pipe end forming device for a bent pipe.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a pipe end forming apparatus for an elbow pipe, comprising: a frame, a feeding mechanism, a forming mechanism, a material receiving frame and a conveying mechanism which are arranged on the frame,

the forming mechanism comprises a clamping assembly, a forming assembly and a driving assembly, wherein the clamping assembly comprises an inner die and an outer die, the inner die is used for being inserted into the end of the bent pipe, the outer die is arranged on the periphery of the end of the bent pipe, the inner die comprises a plurality of inner die single bodies which are arranged around the circumferential direction and can move along the direction close to or far away from the surrounding center, and core grooves are formed among the inner die single bodies, and the outer die comprises a plurality of outer die single bodies which are arranged around the circumferential direction of the inner die and can move along the direction close to or far away from the inner die; the forming assembly comprises a mandrel extending into the mandrel groove, the mandrel can move along the length direction corresponding to the end of the bent pipe, and the mandrel is further synchronously arranged around the axis corresponding to the end of the bent pipe in a rotating manner; the driving assembly comprises a first driving assembly for driving the plurality of outer die single bodies to move and a second driving assembly for driving the mandrel to move;

the transfer mechanism includes: the gripper can move along the arrangement direction of the feeding mechanism, the forming mechanism and the material receiving frame and can move along the up-and-down direction, and the third driving assembly;

the feeding mechanism comprises a feeding vibration disc for outputting the bent pipes one by one, a discharge hole formed in the side part of the feeding vibration disc, a positioning assembly arranged at the discharge hole, and a turning assembly matched and connected with the positioning assembly, wherein the turning assembly is provided with an insertion part butted with a pipe orifice at one end of the bent pipe, the insertion part is provided with a first state before turning and a second state after turning, and when the insertion part is in the first state, the insertion part is butted with the pipe orifice at one end of the bent pipe; when in the second state, the other end of the bent pipe faces the hand grip.

Preferably, the frame has material loading station and two at least shaping stations, feed mechanism sets up the material loading station, shaping mechanism sets up shaping station, transport mechanism still includes along material loading station to the first guide rail of the direction extension of shaping station, along the extending direction slidable of first guide rail locates at least two slides on the first guide rail, the tongs along upper and lower direction slidable locate on the slide, the third drive assembly including be used for driving the first power spare of slide motion, be used for driving the second power spare of tongs motion.

Preferably, the inner die comprises an inner die holder, an inner die head formed at the end of the inner die holder and used for inserting the end of the elbow pipe; the outer die comprises an outer die holder and an outer die ring formed at the end part of the outer die holder, a die cavity used for containing the inner die holder is arranged in the outer die holder, and the outer die ring is positioned on the periphery of the end part of the bent pipe.

Further preferably, the core groove is radially reduced along the direction from the inner die holder to the inner die head, the core shaft is tapered and has a profile matched with the core groove, and the axis of the core shaft is parallel to the axis of the end of the elbow pipe.

Preferably, the first driving assembly comprises a plurality of sliding blocks which are arranged around the circumference of the outer die and are arranged in a sliding manner along a direction close to or far away from the inner die, and a plurality of third power parts which are respectively used for driving the plurality of sliding blocks to move in a one-to-one correspondence manner, and the plurality of sliding blocks and the plurality of outer die single bodies are in one-to-one correspondence and are connected with each other.

Further preferably, the first driving assembly further includes a first guide groove formed in the slider, a second guide groove formed between two adjacent sliders, and a first guide block and a second guide block arranged on the frame, the first guide groove extends along a sliding direction of the slider, the first guide block is embedded in the first guide groove, and the second guide block is embedded in the second guide groove.

Preferably, the second driving assembly includes a rotary seat rotatably disposed around an axis corresponding to the pipe end of the pipe, a synchronous tooth disposed around the periphery of the rotary seat, a fourth power component for driving the rotary seat to rotate, a synchronous belt respectively in transmission connection with an output end of the fourth power component and the synchronous tooth, and a fifth power component disposed in the rotary seat for driving the mandrel to move along a length direction corresponding to the pipe end of the pipe, wherein the mandrel is inserted into the rotary seat and coaxially connected with an output end of the fifth power component.

Preferably, the locating component is including pressing material module and material blocking module, press the material module including locating the depression bar of discharge gate top, be used for the drive the sixth power spare of depression bar up-and-down motion, material blocking module includes the base, locates just keep off on the base and locate material blocking block outside the discharge gate.

Preferably, the turnover assembly comprises a turnover rod, a seventh power piece and an eighth power piece, the seventh power piece is used for driving the turnover rod to reciprocate along the axial lead of the end of the bent pipe at the discharge port, the eighth power piece is used for driving the turnover rod to turn over, and the insertion end is formed on the turnover rod.

Preferably, the first state is a horizontal state, the second state is a vertical state, the feeding mechanism further comprises a correction assembly, the correction assembly comprises a backup plate vertically arranged on one side of the turnover rod and a push rod arranged in parallel with the backup plate, and when the bent pipe is inserted into the turnover rod and the turnover rod is in the vertical state, the push rod pushes the other end of the bent pipe to rotate around the axis of the other end and abut against the backup plate; and a push roller is also arranged at the end part of the push rod, which is used for abutting against the bent pipe.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

(1) the inner die is only endowed with the flaring forming function, and cannot rotate after being inserted into the end of the bent pipe, so that the function of fixing the bent pipe can be achieved, the bent pipe does not need to be manually clamped or a mechanical arm is not additionally arranged, the cost is saved, and the phenomenon that the forming quality of the end of the bent pipe is influenced due to the fact that the bent pipe is not firmly clamped is avoided;

(2) the inner mold is inserted into the end of the bent pipe to fix the bent pipe, the mandrel extends into the core groove and synchronously rotates to realize the molding of the end of the bent pipe, and the inner mold and the mandrel play respective roles, so that the clamping and fixing of the bent pipe are realized, and the molding quality of the bent pipe cannot be influenced;

(3) the outer die is divided into a plurality of outer die single bodies, and the plurality of outer die single bodies are respectively driven to move by the plurality of driving assemblies, so that the outer die can be adapted to bent pipes with different sizes, and the cost is saved;

(4) through the cooperation of locating component and upset subassembly, realize carrying out quick attitude adjustment to the return bend of material loading vibration dish discharge gate department automatically for the return bend gesture can with the centre form phase-match, so, the tongs can directly snatch the return bend and shift to the shaping station and process, very big promotion machining efficiency.

Drawings

FIG. 1 is a schematic structural view of a pipe end forming apparatus in an embodiment of the present invention;

FIG. 2 is a schematic top view of a forming mechanism in an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 with the fixation plate removed;

FIG. 4 is an enlarged schematic view of FIG. 3 at B;

fig. 5 is a schematic structural diagram of a feeding mechanism in an embodiment of the present invention.

In the figure: 1. a frame; 2. a material receiving frame;

r, a forming mechanism; 3. a clamping assembly; 3a, an inner mold; 3a1, inner mold monomer; 3a2, core barrel; 3a3, inner die holder; 3a4, inner die; 3a5, a limiting surface; 3a6, bumps; 3b, an outer die; 3b1, outer mold monomer; 3b2, an outer die holder; 3b3, outer mould ring; 3b4, a mold cavity; 3b5, groove; 4. a molding assembly; 4a, a mandrel; 5. a drive assembly; 5a, a first driving component; 5a1, slider; 5a2, a third power element; 5a3, a first guide groove; 5a4, second guide groove; 5a5, a first guide block; 5a6, second guide block; 5a7, fixing plate; 5b, a second driving component; 5b1, swivel base; 5b2, synchronizing teeth; 5b3, a fifth power element;

s, a conveying mechanism; 6. a gripper; 7. a third drive assembly; 7a, a first power part; 7b, a second power member; 12. a first guide rail; 13. a slide base;

t, a feeding mechanism; 8. a feeding vibration disc; 8a, a disc body; 8b, a material guide channel; 9. a discharge port; 10. a positioning assembly; 10a, a material pressing module; 10a1, strut; 10a2, sixth power element; 10b, a material blocking module; 10b1, base; 10b2, a stop block; 11. a turnover assembly; 11a, a plug part; 11b, a turnover rod; 11c, a seventh power member; 11c1, second guide rail; 11c2, drive lever; 11d, an eighth power member; 14. a correction component; 14a, a backup plate; 14b, a push rod; 14c, a push roller; 14d, an abutting portion;

15. a hydraulic control box; 16. an electrical control box;

H. and (5) bending the pipe.

Detailed Description

The technical scheme of the utility model is further explained by combining the attached drawings.

The utility model relates to the improvement of pipe end forming equipment of the bend, the improved equipment, on one hand, through the cooperation of the positioning assembly 10 and the turning assembly 11, the posture adjustment of the bend H is realized, so that the posture of the bend H can be matched with the inner die 3a1, and the processing efficiency is improved; on the other hand, by dividing the inner mold 3a1 into a plurality of inner mold single bodies 3a1, dividing the outer mold 3b into a plurality of outer mold single bodies 3b1 and simultaneously separately arranging a mandrel 4a for rotational molding, the precision of the machining and molding of the pipe end of the bent pipe is greatly improved.

Referring to fig. 1-5, there is shown a pipe end forming apparatus for bending a pipe, comprising: the frame 1, locate feed mechanism T, forming mechanism R, receipts material frame 2 on the frame 1 to and transport mechanism S. The bend H here is a right angle bend with two pipe ends.

In this embodiment, the frame 1 has a feeding station and at least two forming stations, the feeding mechanism T is disposed on the feeding station, and the at least two forming mechanisms R are disposed on the at least two forming stations, respectively. Through the multistation setting, machining efficiency has been improved.

As shown in fig. 2 to 4, the molding mechanism R includes a clamping assembly 3, a molding assembly 4 and a driving assembly 5, the clamping assembly 3 includes an inner mold 3a1 for inserting into the end of the elbow pipe H, and an outer mold 3b provided on the outer periphery of the end of the elbow pipe H, the inner mold 3a1 includes a plurality of inner mold single bodies 3a1 arranged around the circumferential direction and capable of moving in a direction close to or away from the surrounding center, and a core groove 3a2 formed between the plurality of inner mold single bodies 3a1, and the outer mold 3b includes a plurality of outer mold single bodies 3b1 arranged around the circumferential direction of the inner mold 3a1 and capable of moving in a direction close to or away from the inner mold 3a 1; the forming assembly 4 comprises a mandrel 4a which is used for extending into the mandrel groove 3a2, the mandrel 4a can be movably arranged along the length direction of the end of the corresponding bent pipe H, and the mandrel 4a is also synchronously and rotatably arranged around the axis of the end of the corresponding bent pipe H; the driving assembly 5 comprises a first driving assembly 5a for driving the plurality of outer die units 3b1 to move, and a second driving assembly 5b for driving the mandrel 4a to move.

In this way, during machining, the inner die 3a1 is inserted into the tube end of the elbow tube H, the outer die 3b is arranged on the periphery of the tube end, the distance between the outer die 3b and the tube end of the elbow tube H is designed according to the expanding size of the tube end of the elbow tube H, the second driving assembly 5b drives the plurality of outer die single bodies 3b1 to move in place, then the first driving assembly 5a drives the mandrel 4a to extend into the core groove 3a2 and synchronously rotate, the plurality of inner die single bodies 3a1 are pushed to move outwards and expand the tube end of the elbow tube H, then the mandrel 4a exits from the core groove 3a2 and then extends into the core groove 3a2 again and synchronously rotates, and the process is repeated for multiple times to form the tube end of the elbow tube H.

Specifically, the inner die 3a1 includes an inner die holder 3a3, an inner die head 3a4 formed at an end of the inner die holder 3a3 for inserting a pipe end of the elbow pipe H; the outer die 3b comprises an outer die holder 3b2 and an outer die ring 3b3 formed at the end of the outer die holder 3b2, a die cavity 3b4 for accommodating the inner die holder 3a3 is formed in the outer die holder 3b2, and the outer die ring 3b3 is located on the outer periphery of the tube end of the elbow H. The core groove 3a2 is radially reduced along the direction from the inner die holder 3a3 to the inner die 3a4, the core shaft 4a is conical and the outline thereof is matched with the core groove 3a2, and the axial lead of the core shaft 4a is parallel to the axial lead of the end of the corresponding bent pipe H.

In this way, since the profile of the mandrel 4a matches with the mandrel groove 3a2, the diameter of the mandrel is gradually increased along the direction far away from the mandrel groove 3a2, and in the process that the mandrel extends into the mandrel groove 3a2, the mandrel can gradually enlarge the mandrel groove 3a2, and the outward movement of the inner mold single bodies 3a1 is realized; while the configuration of the cavity 3b4 provides a margin of space for outward movement of the inner die shoe 3a 3.

Further, the inner die holder 3a3 is truncated cone-shaped and radially inwardly contracted along the direction close to the inner die head 3a4, a limiting surface 3a5 for abutting against the end of the elbow pipe H is formed at one end of the inner die holder 3a3 close to the inner die head 3a4, the diameter of the limiting surface 3a5 is larger than that of the end of the elbow pipe H, and the inner die head 3a4 is cylindrical and matched with the inner cavity of the end of the elbow pipe H.

Further, the inner die 3a1 further includes a protrusion 3a6 surrounding the outer peripheral side of the inner die 3a4, and the outer die 3b further includes a groove 3b5 opened on the inner annular surface of the outer die ring 3b3 and matching with the protrusion 3a 6. By the arrangement of the protrusion 3a6 and the groove 3b5, a convex ring can be formed on the pipe end of the elbow pipe H during the outward movement of the inner mold units 3a 1. Here, the protrusion 3a6 and the groove 3b5 are designed as matching pieces for forming a convex ring, but those skilled in the art can design other matching pieces to process structures with other shapes according to the connection requirement of the pipe end of the elbow pipe H.

In the present embodiment, the first driving assembly 5a includes a plurality of sliding blocks 5a1 arranged around the circumference of the outer mold 3b and slidably disposed along a direction close to or away from the inner mold 3a1, a plurality of third power members 5a2 for driving the plurality of sliding blocks 5a1 to move in a one-to-one correspondence, and a plurality of sliding blocks 5a1 and a plurality of outer mold single bodies 3b1 are in a one-to-one correspondence and connected to each other. The third power member 5a2 here is a cylinder. The plurality of oil cylinders are used for respectively driving the plurality of slide blocks 5a1 to move, so that the stability of the movement of the slide blocks 5a1 is ensured, and the clamping effect of the outer die 3b is also ensured.

Preferably, the first driving assembly 5a further includes a first guide groove 5a3 opened on the slider 5a1, a second guide groove 5a4 formed between two adjacent sliders 5a1, and a first guide block 5a5 and a second guide block 5a6 provided on the frame 1, wherein the first guide groove 5a3 extends along the sliding direction of the slider 5a1, the first guide block 5a5 is engaged in the first guide groove 5a3, and the second guide block 5a6 is engaged in the second guide groove 5a 4. In this way, during the sliding of the plurality of sliders 5a1, the first guide groove 5a3 and the first guide block 5a5, and the second guide groove 5a4 and the second guide block 5a6 cooperate with each other, so that the sliding direction of the slider 5a1 can be ensured, the slider 5a1 is prevented from deviating, and the clamping effect is ensured.

In this example, the first driving assembly 5a further includes a fixing plate 5a7 disposed on the frame 1, and the first guide block 5a5 and the second guide block 5a6 are both embedded in the fixing plate 5a7 and are arranged around the fixing plate 5a7 at intervals and offset in the circumferential direction.

Further, the second driving assembly 5b includes a rotating seat 5b1 rotatably disposed on the frame 1 around the axis of the tube end of the corresponding bent tube H, a synchronizing tooth 5b2 disposed around the outer periphery of the rotating seat 5b1, a fourth power member for driving the rotating seat 5b1 to rotate, a timing belt in transmission connection with the output end of the fourth power member and the synchronizing tooth 5b2, and a fifth power member 5b3 built in the rotating seat 5b1 for driving the mandrel 4a to move along the length direction of the tube end of the corresponding bent tube H, wherein the mandrel 4a is inserted in the rotating seat 5b1 and coaxially connected with the output end of the fifth power member 5b 3.

Here, the fourth power element is a servo motor, the fifth power element 5b3 is an oil cylinder, and the output shaft of the servo motor drives the synchronous teeth 5b2 on the periphery of the rotating base 5b1 to rotate, and further drives the rotating base 5b1 to rotate, so as to realize the rotation of the mandrel 4 a; and the movement of the mandrel 4a in the length direction of the end of the bent pipe H can be realized through the extension and contraction of a piston rod of the oil cylinder.

Referring to fig. 1, the conveying mechanism S includes a first guide rail 12 extending along a direction from the feeding station to the forming station, at least two sliding bases 13 slidably disposed on the first guide rail 12 along an extending direction of the first guide rail 12, a gripper 6 slidably disposed on the sliding bases 13 along an up-down direction, and a third driving assembly 7, where the third driving assembly 7 includes a first power member 7a for driving the sliding bases 13 to move and a second power member 7b for driving the gripper 6 to move.

The first power part 7a and the second power part 7b are both matching parts of a servo motor and a screw rod, and the screw rod is driven to rotate through the servo motor, so that the sliding seat 13 and the hand grip 6 on the screw rod move.

As shown in fig. 5, the feeding mechanism T includes a feeding vibration tray 8 for outputting the bent pipes H one by one, a discharge port 9 formed in a side portion of the feeding vibration tray 8, a positioning assembly 10 disposed at the discharge port 9, an overturning assembly 11 engaged with the positioning assembly 10, and a correcting assembly 14, the overturning assembly 11 has an insertion portion 11a engaged with a pipe orifice at one end of the bent pipe H, the insertion portion 11a has a first state before overturning and a second state after overturning, and when in the first state, the insertion portion 11a is engaged with a pipe orifice at one end of the bent pipe H; when in the second state, the other end of the bent tube H faces the hand grip 6.

This and, through the cooperation of locating component 10 and upset subassembly 11, can adjust the gesture of return bend H fast, be convenient for tongs 6 snatchs.

Specifically, the feeding vibration tray 8 includes a tray body 8a and a material guiding channel 8b connected to the tray body 8a, wherein the elbow H sequentially enters the material guiding channel 8b from the tray body 8a, and when the elbow H moves to the material outlet 9 of the material guiding channel 8b, the elbow H is in a horizontal state and one pipe end is exposed out of the material outlet 9. The arrangement is convenient for the insertion end to be inserted into the pipe end of the elbow pipe H. The material guide channel 8b is gradually narrowed along the material guide direction, so that only one bent pipe H can pass through the material guide channel 8b at each time.

The positioning assembly 10 comprises a material pressing module 10a and a material blocking module 10b, the material pressing module 10a comprises a pressing rod 10a1 arranged above the material outlet 9 and a sixth power piece 10a2 used for driving the pressing rod 10a1 to move up and down, and the material blocking module 10b comprises a base 10b1 and a material blocking block 10b2 arranged on the base 10b1 and blocked outside the material outlet 9. The sixth power member 10a2 is a cylinder here.

The turning assembly 11 comprises a turning rod 11b, a seventh power part 11c for driving the turning rod 11b to reciprocate along the axial lead of the end of the bent pipe H positioned at the discharge port 9, and an eighth power part 11d for driving the turning rod 11b to turn, and the inserting end is formed on the turning rod 11 b. The seventh power member 11c includes a second rail 11c1 and a driving rod 11c2, the eighth power member 11d is a motor, and the driving rod 11c2 is connected to the motor and drives the motor to move along the length of the rail 11c 1.

In this example, the first state is a horizontal state, the second state is a vertical state, the feeding mechanism T further includes a correction assembly 14, the correction assembly 14 includes a backup plate 14a vertically disposed on one side of the turnover rod 11b, and a push rod 14b disposed in parallel with the backup plate 14a, when the elbow pipe H is inserted into the turnover rod 11b and the turnover rod 11b is in the vertical state, the push rod 14b pushes the other end of the elbow pipe H to rotate around the axis of one end and abut against the backup plate 14 a; the end of the push rod 14b for abutting against the elbow H is further provided with a push roller 14 c. The posture of the bent pipe H can be further corrected by the arrangement of the correcting component 14 in cooperation with the overturning component 11.

Specifically, the backup plate 14a is provided with an abutting portion 14d so as to abut against the surface of the elbow pipe H.

The pipe end forming apparatus in this example further includes a hydraulic control box 15 for controlling the oil cylinder and an electric control box 16 for controlling the servo motor.

The following specifically explains the working process of this embodiment: the feeding vibration disc 8 conveys the bent pipes H to the discharge port 9 one by one, the positioning assembly 10 positions the bent pipes H reaching the discharge port 9, then the overturning rod 11b is inserted into the pipe ends of the bent pipes H and drives the bent pipes H to overturn, after overturning, the grippers 6 grab the bent pipes H and lift the bent pipes H to enable the pipe ends of the bent pipes H to be separated from the overturning rod 11b, then the bent pipes H are conveyed to a forming station, after the bent pipes H are conveyed to the proper position, the grippers 6 descend, the pipe ends of the bent pipes H are sleeved on the inner die 3a1, meanwhile, the outer die 3b is arranged on the periphery of the pipe ends, the distance between the outer die 3b and the pipe ends of the bent pipes H is designed according to the external expansion size of the pipe ends of the bent pipes H, the second driving assembly 5b drives the plurality of outer die single bodies 3b1 to move to the proper position, then the first driving assembly 5a drives the mandrel 4a to extend into the core groove 3a2 and synchronously rotate, the plurality of inner die single bodies 3a1 are driven to move outwards and the pipe ends of the bent pipes H are expanded outwards, and then the mandrel 4a is withdrawn from the core groove 3a2 and then extends into the core groove 3a2 again and rotates synchronously, the process is repeated for many times, the pipe end of the bent pipe H is subjected to the forming process for many times, after the machining is finished, the gripper 6 moves to the upper side of the bent pipe H again, then the gripper descends to grip the bent pipe H, drives the bent pipe H to ascend to be separated from the inner die 3a1 and then moves towards the material receiving frame 2, and finally the bent pipe H is put into the material receiving frame 2.

The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this means. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. A pipe end forming apparatus for an elbow pipe, comprising: the frame is located feed mechanism, forming mechanism, receipts material frame in the frame to and transport mechanism, its characterized in that:

the forming mechanism comprises a clamping assembly, a forming assembly and a driving assembly, wherein the clamping assembly comprises an inner die and an outer die, the inner die is used for being inserted into the end of the bent pipe, the outer die is arranged on the periphery of the end of the bent pipe, the inner die comprises a plurality of inner die single bodies which are arranged around the circumferential direction and can move along the direction close to or far away from the surrounding center, and core grooves are formed among the inner die single bodies, and the outer die comprises a plurality of outer die single bodies which are arranged around the circumferential direction of the inner die and can move along the direction close to or far away from the inner die; the forming assembly comprises a mandrel extending into the mandrel groove, the mandrel can move along the length direction corresponding to the end of the bent pipe, and the mandrel is further synchronously arranged around the axis corresponding to the end of the bent pipe in a rotating manner; the driving assembly comprises a first driving assembly for driving the plurality of outer die single bodies to move and a second driving assembly for driving the mandrel to move;

the transfer mechanism includes: the gripper can move along the arrangement direction of the feeding mechanism, the forming mechanism and the material receiving frame and can move along the up-and-down direction, and the third driving assembly;

the feeding mechanism comprises a feeding vibration disc for outputting the bent pipes one by one, a discharge hole formed in the side part of the feeding vibration disc, a positioning assembly arranged at the discharge hole, and a turning assembly matched and connected with the positioning assembly, wherein the turning assembly is provided with an insertion part butted with a pipe orifice at one end of the bent pipe, the insertion part is provided with a first state before turning and a second state after turning, and when the insertion part is in the first state, the insertion part is butted with the pipe orifice at one end of the bent pipe; when in the second state, the other end of the bent pipe faces the hand grip.

2. The pipe end forming apparatus for an elbow pipe according to claim 1, wherein: the frame has material loading station and two at least shaping stations, feed mechanism sets up the material loading station, shaping mechanism sets up the shaping station, transport mechanism still includes along the material loading station extremely the first guide rail that the direction of shaping station extends, along the extending direction slidable of first guide rail locates two at least slides on the first guide rail, the tongs is located along upper and lower direction slidable on the slide, third drive assembly is including being used for the drive the first power spare of slide motion, be used for the drive the second power spare of tongs motion.

3. The pipe end forming apparatus for an elbow pipe according to claim 1, wherein: the inner die comprises an inner die holder and an inner die head which is formed at the end part of the inner die holder and is used for being inserted into the end part of the bent pipe; the outer die comprises an outer die holder and an outer die ring formed at the end part of the outer die holder, a die cavity used for containing the inner die holder is arranged in the outer die holder, and the outer die ring is positioned on the periphery of the end part of the bent pipe.

4. The pipe end forming apparatus for an elbow pipe according to claim 3, wherein: the core groove is radially reduced along the direction from the inner die holder to the inner die head, the core shaft is conical and the outline of the core shaft is matched with the core groove, and the axis of the core shaft is parallel to the axis of the end of the bent pipe.

5. The pipe end forming apparatus for an elbow pipe according to claim 1, wherein: the first driving assembly comprises a plurality of sliding blocks which are arranged around the circumferential direction of the outer die and are arranged in a sliding mode along the direction close to or far away from the inner die, and a plurality of third power parts which are used for driving the sliding blocks to move in a one-to-one correspondence mode respectively, and the sliding blocks are in one-to-one correspondence with the outer die single bodies and are connected with the outer die single bodies.

6. The pipe end forming apparatus for an elbow pipe according to claim 5, wherein: the first driving assembly further comprises a first guide groove formed in the sliding block, a second guide groove formed between the two adjacent sliding blocks, a first guide block and a second guide block arranged on the rack, the first guide groove extends along the sliding direction of the sliding block, the first guide block is embedded in the first guide groove in a clamping mode, and the second guide block is embedded in the second guide groove in a clamping mode.

7. The pipe end forming apparatus for an elbow pipe according to claim 1, wherein: the second drive assembly includes round corresponding the rotatable locating of the axial lead of return bend pipe end the roating seat in the frame, enclose and locate the synchronous tooth of roating seat periphery, be used for the drive the roating seat pivoted fourth power piece, respectively with the output of fourth power piece with synchronous tooth looks drive connection's hold-in range, place in be used for the drive in the roating seat the dabber is along corresponding the fifth power piece of the length direction motion of return bend pipe end, the dabber insert locate in the roating seat and with the output coaxial coupling of fifth power piece.

8. The pipe end forming apparatus for an elbow pipe according to claim 1, wherein: the locating component comprises a material pressing module and a material blocking module, the material pressing module comprises a pressing rod arranged above the discharge port and a sixth power part used for driving the pressing rod to move up and down, the material blocking module comprises a base and is arranged on the base in a blocking mode.

9. The pipe end forming apparatus for an elbow pipe according to claim 1, wherein: the overturning assembly further comprises an overturning rod, a seventh power part and an eighth power part, the seventh power part is used for driving the overturning rod to reciprocate along the axial lead of the end of the bent pipe at the discharge port, the eighth power part is used for driving the overturning rod to overturn, and the inserting end is formed on the overturning rod.

10. The pipe end forming apparatus for an elbow pipe according to claim 9, wherein: the first state is a horizontal state, the second state is a vertical state, the feeding mechanism further comprises a correction assembly, the correction assembly comprises a backup plate vertically arranged on one side of the turnover rod and a push rod arranged in parallel with the backup plate, and when the bent pipe is inserted on the turnover rod and the turnover rod is in the vertical state, the push rod pushes the other end of the bent pipe to rotate around the axis of one end and abut against the backup plate; and a push roller is also arranged at the end part of the push rod, which is used for abutting against the bent pipe.

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