CN110814113A - Bending machine for square pipe fittings of automobile - Google Patents
Bending machine for square pipe fittings of automobile Download PDFInfo
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- CN110814113A CN110814113A CN201910910287.4A CN201910910287A CN110814113A CN 110814113 A CN110814113 A CN 110814113A CN 201910910287 A CN201910910287 A CN 201910910287A CN 110814113 A CN110814113 A CN 110814113A
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- pipe
- rotating
- positioning
- rod
- pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a bending machine for automobile square pipe fittings, which comprises: a frame; the rotating mechanism comprises a rotating frame, a rotating motor, a rotating shaft, a rotating chain and a rotating gear sleeved on the rotating shaft; the left die mechanism comprises a left die clamping seat, a cross rod, a swing arm and a pipe pressing mechanism; the right die mechanism comprises a right die clamping seat, a die clamping sliding frame and a die clamping cylinder, and the rotating frame is provided with a die clamping sliding rail perpendicular to the advancing direction of the pipe fitting; the pushing mechanism is arranged behind the left die mechanism and the right die mechanism and comprises a clamping piece, a pushing fixing seat and a driving mechanism. The invention has the beneficial effects that the top surface of the pipe fitting can be automatically adjusted and pressed according to the size of the pipe fitting so as to ensure that the pipe fitting does not move in the bending process.
Description
Technical Field
The invention relates to a bending machine, in particular to a bending machine for automobile square pipe fittings.
Background
At present, in the production field of automobile parts, bending processing of pipe fittings needs to be executed by using a bending machine which wants to be matched, and the main structure of the commonly used bending machine advances and clamps the pipe fittings to be bent through two clamping dies and rotates by taking one of the clamping dies as a rotation center, so that the bending of the pipe fittings is completed. For example, prior art CN201711281173.5 discloses a tube bending device in a tube bending machine, a main shaft of a belt pulley module is disposed on a frame of the tube bending machine, the main shaft is driven by a driving device, one end of a tube bending arm with the belt pulley module is fixedly disposed on the main shaft through a connecting sleeve, the other end of the tube bending arm is a swing end, one end of an outer protection plate is disposed on an outer side surface of the tube bending arm, the other end of the outer protection plate extends out of the swing end, a first extension spring is disposed between the outer protection plate and the outer side surface of the tube bending arm, one end of an inner protection plate is disposed on the inner side surface of the tube bending arm, the other end of the inner protection plate extends out of the swing end, a second extension spring is disposed between the inner protection plate and the inner side surface of the tube bending arm, a safety position switch. The pipe bending device of the pipe fitting has a good pipe bending execution function and a good safety protection function. However, such devices have the following drawbacks: the pipe fitting that can only be directed against specific size buckles, if the pipe fitting of equidimension not need buckle then need change the equipment that the size matches, if the die holder with current centre gripping pipe fitting reequips, only bear the bottom surface of pipe fitting, and two sides of centre gripping pipe fitting, then can be used to the pipe fitting of equidimension not, however this kind of mode of universalization can make the top surface of pipe fitting not get the suppression certainly, to the pipe fitting especially under the longer condition of pipe fitting, lie in the pipe fitting outside the equipment working range of buckling, under the condition that equipment operating condition produced the vibration, also can produce thereupon and rock the phenomenon, therefore the pipe fitting of buckling can take place the drunkenness owing to the top surface does not receive the suppression, thereby influence the quality of the pipe fitting of buckling.
Disclosure of Invention
The invention aims to solve the technical problem of providing a bending machine for automobile square pipe fittings, which can automatically adjust and press the top surfaces of the pipe fittings according to the sizes of the pipe fittings while clamping the pipe fittings left and right so as to ensure that the pipe fittings do not move in the bending process and realize the technical purpose of bending the full-size square pipe fittings.
The invention is realized by the following technical scheme.
A bending machine for square automobile pipe fittings comprises:
a frame; and
the rotating mechanism comprises a rotating frame, a rotating motor, a rotating shaft, a rotating chain and a rotating gear sleeved on the rotating shaft, the rotating shaft is vertically arranged and assembled at the front end of the rack, the upper part and the lower part of the near end of the rotating frame are fixedly sleeved on the middle part and the bottom of the rotating shaft respectively, and an output shaft of the rotating motor and the rotating gear are in transmission through the rotating chain;
the left die mechanism comprises a left die clamping seat, a cross rod, a swinging arm and a pipe pressing mechanism, wherein the left die clamping seat is sleeved and fixed on the rotating shaft, the end surface, facing the pipe fitting, of the left die clamping seat is a vertical plane and used for pressing the side surface of the pipe fitting, the left die clamping seat is provided with a stepped structure and used for bearing the bottom surface of the pipe fitting, the cross rod is parallel to the moving direction of the pipe fitting and is rotatably installed at the top of the left die clamping seat, the swinging arm is vertically sleeved on the cross rod, and the pipe pressing mechanism is arranged on the swinging arm and used;
the die clamping mechanism comprises a die clamping seat, a die clamping sliding frame and a die clamping cylinder, the rotating frame is provided with a die clamping sliding rail perpendicular to the advancing direction of the pipe fitting, the die clamping seat is fixed on the die clamping sliding frame, the die clamping sliding frame is installed on the die clamping sliding rail in a sliding mode, the surface of the die clamping seat facing the end face of the pipe fitting is a vertical plane and used for pressing the side face of the pipe fitting, and the die clamping cylinder is used for driving the die clamping sliding frame to move in a reciprocating mode;
pushing mechanism sets up at left side mould mechanism, right side mould mechanism's rear, including the holder, promote the fixing base, actuating mechanism, the rear that above-mentioned frame surface lies in above-mentioned left mould mechanism and above-mentioned right mould mechanism is provided with the promotion track, the direction setting that the above-mentioned pipe fitting of advancing is followed to the above-mentioned track that promotes, the above-mentioned fixing base that promotes slides at the above-mentioned track that promotes, above-mentioned driving machine orders about the above-mentioned fixing base that promotes slides at the above-mentioned track that promotes, the rear end that the above-mentioned holder was fixed at the above-mentioned fixing.
The principle of the bending pipe fitting of the bending machine is as follows: the left die clamping seat and the right die clamping seat are used as die clamps for clamping the pipe fitting, the whole formed by the left die clamping seat and the right die clamping seat serves as a rotating part, the left die clamping seat serves as a rotating center, and the pipe fitting is rotated according to the required bending degree, so that the pipe fitting is bent. And at this in-process, the horizontal pole of left side die holder drives the swing arm and rotates to operating position, make press the pipe mechanism to compress tightly the top surface at the pipe fitting, cooperation left side die holder and right die holder press from both sides the clamp of two sides of pipe fitting and bear of bottom surface, thereby on the one hand at the difficult emergence shake of the in-process pipe fitting of the pipe fitting of buckling, thereby the drunkenness leads to buckling deformation scheduling problem, on the other hand has realized the position locking to the pipe fitting of arbitrary size and the pipe fitting of the arbitrary proportion of long limit minor face of cross-section, set up the rear end that pushing mechanism is used for the centre gripping pipe fitting and promote the pipe fitting to advance the cooperation left side.
Further, the top of the left clamping die holder is provided with two bearing seats for mounting two ends of the cross rod, two ends of the cross rod are respectively sleeved with and fixed with a rotating piece, a rotating connecting frame is arranged and is provided with two rotating lantern rings which are hinged, the two rotating lantern rings can rotate in a vertical plane perpendicular to the advancing direction of the pipe fitting and are respectively located behind the two rotating pieces, a rotating hinge rod is arranged, one end of the rotating hinge rod is hinged to the far end of the rotating piece, the other end of the rotating hinge rod penetrates through the rotating lantern ring in a sliding mode, a rotating elastic piece is sleeved on the rotating hinge rod, two ends of the rotating elastic piece are respectively fixed to one end, away from the rotating piece, of the rotating hinge rod and the rotating lantern rings, and when the rotating elastic piece is in a loose state, the far end of the rotating piece is located.
Use rotating the piece for ordering about horizontal pole pivoted executive component to the realization drives the swing arm to operating position, and the articulated mast and the cover are established the rotation lantern ring of articulated mast and is regarded as rotating the part that the in-process drove rotating, and the cooperation rotates the elastic component, makes to rotate under the circumstances that does not receive external effort, thereby can realize resetting and drive the swing arm and leave the operating position playback.
Furthermore, a positioning seat is arranged at the top of the right clamping die holder, two first positioning rods which are parallel to each other and transversely arranged are arranged, the first positioning rods are perpendicular to the advancing direction of the pipe fitting, the near ends of the two positioning rods are fixed on the positioning seat, the far ends of the two positioning rods are respectively aligned with the two rotating pieces, when the right clamping die holder moves, the far ends of the positioning rods can be in contact with the rotating pieces and drive the rotating pieces to rotate, and when the far ends of the rotating pieces slide on the top surfaces of the positioning rods, the swinging arms rotate to be horizontal along with the cross rods and are located between the left clamping die holder and the right clamping die holder.
The positioning seat arranged on the right die clamping seat is used for being mutually linked with the rotating part, the swinging arm, the tube pressing mechanism and the like as a part arranged in an installing mode, the first positioning rod is used for being linked with the rotating part, in the process that the right die clamping seat is driven by the die clamping cylinder to approach the left die clamping seat, the far end of the first positioning rod can contact the positioning part and drive the positioning part to rotate until the rotation angle of the positioning part is fixed, and therefore the swinging arm is driven to rotate to the horizontal state, namely the working position.
Further, the two swing arms are arranged in parallel, the inner surfaces of the swing arms facing each other are provided with sliding grooves, when the distal end of the rotating member slides on the top surface of the positioning rod, the sliding grooves are in a horizontal state, two ends of the pipe pressing mechanism can slide in the sliding grooves, sliding elastic members are arranged in the sliding grooves, and two ends of the sliding elastic members are respectively fixed at one ends of the pipe pressing mechanism and the sliding grooves far away from the right die clamping base.
The two swing arms are arranged, structural stability between the swing arms and the pipe pressing mechanism is improved due to the structural relation of the symmetrical plane, and the double sliding grooves of the double swing arms enable the pipe pressing mechanism to move more stably due to the fact that the swing arms are provided with the sliding grooves. The structure is matched with the arrangement of the sliding elastic piece, so that the pipe pressing mechanism can move in the direction towards the left die clamping seat after the swinging arm rotates to the working position and can reset under the condition of not receiving external acting force.
Furthermore, the positioning seat is provided with a second positioning rod which is horizontally arranged and perpendicular to the moving direction of the pipe fitting, the near end of the second positioning rod is fixed on the positioning seat, the far end of the second positioning rod is aligned with the pipe pressing mechanism, and after the right clamping die holder moves and the sliding groove is in a horizontal state, the far end of the second positioning rod can push the pipe pressing mechanism to move towards the left clamping die holder.
The second positioning rod is arranged on the positioning seat and used as a part linked with the pipe pressing mechanism, the second positioning rod pushes the pipe pressing mechanism to move towards the left die clamping seat after the swinging arm rotates to a horizontal state, namely, a working position, and the right die clamping seat resets after the pipe bending is finished, so that the pipe pressing mechanism also resets.
Further, the pipe pressing mechanism comprises a pipe pressing fixing seat, a pipe pressing rod, a pipe pressing plate and a pipe pressing elastic piece, the pipe pressing fixing seat is provided with a through hole, the pipe pressing rod penetrates through the through hole and is installed on the pipe pressing fixing seat, the pipe pressing rod is perpendicular to the sliding groove, the bottom end of the pipe pressing rod is perpendicularly fixed with the pipe pressing plate, the pipe pressing elastic piece is sleeved on the pipe pressing rod, two ends of the pipe pressing elastic piece are respectively fixed on the pipe pressing fixing seat and the pipe pressing plate, and the pipe pressing rod can stretch the pipe pressing elastic piece to enable the pipe pressing plate to move downwards after the sliding groove is in a horizontal state.
The pressure tube plate is the top surface that is used for compressing tightly the pipe fitting, sets up the through-hole through pressing the pipe fixing base to the pressure tube pole passes the through-hole, makes the pressure tube pole be slidable member, can drive the pressure tube plate downstream and compress tightly the pipe fitting, and the cooperation is pressed the pipe elastic component and is made to accomplish after the pipe fitting of buckling pressure tube plate and reset and leave the pipe fitting top surface.
Furthermore, the pipe pressing rod and the pipe pressing elastic part are provided with two pressure pipe rods, rod pieces perpendicular to the swing arms are arranged on the inner surfaces, located at the far ends, of the two swing arms, two bent pressure rods are arranged, the bent positions of the two pressure pipe rods are hinged to the rod pieces, the rotating planes of the pressure rods are perpendicular to the advancing direction of the pipe fitting, the top ends of the pressure pipe rods are hinged to pressure rod lantern rings, the far ends of the pressure rods are close to the right die clamping seat, and the near ends of the pressure pipe rods penetrate through the pressure rod lantern rings in a.
The pipe pressing rods are two, so that the connection structure of the pipe pressing rods and the pipe pressing plate is more stable, the problem that the pipe pressing plate is not prone to deformation and deflection in a horizontal state can be guaranteed, the reliability of pipe pressing is guaranteed, and the pipe pressing rods are matched with two pressing rod structures arranged on the swinging arm. The pressure bar is used as a part for driving the pressure bar to slide, and the pressure bar can be driven to move downwards by rotating and matching with the lantern ring of the pressure bar.
Furthermore, the positioning seat is provided with two third positioning rods, the third positioning rods are horizontally arranged and perpendicular to the advancing direction of the pipe fitting, the far ends of the third positioning rods are respectively aligned with the far ends of the corresponding pressing rods, the far ends of the second positioning rods are aligned with the pipe pressing fixing seat, and after the second positioning rods push the pipe pressing positioning seat, the third positioning rods can push one section of the pressing rods with far ends to drive the pressing rods to rotate around the rod pieces and press the pipe pressing rods downwards.
The third locating lever is as the part with the depression bar linkage, thereby it rotates to press the pipe pole to push down the top surface that the pipe board suppressed the pipe fitting promptly with the removal promotion depression bar of the clamp die holder of the right side along with the third location to press the pipe pole, and after the pipe fitting was buckled to the toy car, the depression bar did not receive under the circumstances of external effort, reset by pressing the pipe elastic component.
Furthermore, the top of the positioning seat is provided with two slideways parallel to the third positioning rod, two third positioning seats, two third positioning plates and two third positioning elastic pieces, the third positioning plates are slidably mounted on the slideways and fix the third positioning rod, the third positioning seat is fixed on the top of the positioning seat, two ends of the third positioning elastic pieces are respectively fixed on the proximal end surface of the third positioning plate and the distal end surface of the third positioning seat, and the elastic force generated by the third positioning elastic pieces is greater than the elastic force generated by the pressure tube elastic pieces.
Set up the third positioning seat, third locating plate and third elastic component can make and after the top surface of pipe fitting is suppressed to the tube pressing board, the third locating lever can not continue to suppress downwards and by the effect of third location elastic component under, the third locating lever keeps quiescent condition for the depression bar, avoided the right side to press from both sides the die holder and continue under the condition that moves towards the left side, thereby the third locating lever continues to move and leads to the tube pressing board to continue to push down the damage that causes the pipe fitting, the elasticity that the third elastic component produced is greater than the setting up of pressing the tube elastic component and has guaranteed that the third locating lever promotes the mechanical action that the depression bar is static afterwards earlier.
Further, the clamping member includes a cylindrical tube, a tube positioning seat, and a tube clamping plate, the cylindrical tube is disposed along a tube advancing direction, and the rear end of the cylindrical tube is disposed on the pushing fixing seat, the tube positioning seat is fixed on a front end surface of the cylindrical tube, and has a bottom end surface for bearing a bottom surface of the tube and a side end surface for abutting against a side surface of the tube, the side end surface and the left clamp mold seat are located on a same side of the tube, a vertical plate is fixed on the bottom end surface of the tube positioning seat, the tube clamping plate is parallel to the vertical plate and can slide on the bottom end surface of the tube positioning seat along a direction perpendicular to the tube advancing direction, a threaded rod with a matched thread is vertically inserted into the vertical plate, a hand wheel is fixed on an outer end of the threaded rod, an inner end of the threaded rod can abut against the tube clamping.
Obviously, the side end face and the bottom end face of the pipe fitting positioning seat correspond to the end face of the left die mechanism and the top face of the step respectively, and according to different sizes and specifications of the pipe fitting, the pipe fitting clamping plate moves and adjusts the position on the side end face of the pipe fitting positioning seat, so that the side end face of the pipe fitting positioning seat and the pipe fitting clamping plate are attached to two side faces of the pipe fitting respectively, and then the hand wheel is rotated to enable the threaded rod to be attached to the pipe fitting clamping plate, so that the rear end of the pipe fitting.
Furthermore, the pipe fitting positioning seat is fixedly provided with a connecting cylinder coaxial with the cylindrical cylinder, a coaxial sliding rod is arranged on the front end face of the connecting cylinder, the sliding rod is inserted into the rear end face of the cylindrical cylinder in a sliding manner, a pushing elastic piece is sleeved on the sliding rod, and two ends of the pushing elastic piece are respectively fixedly connected with the rear end face of the cylindrical cylinder and the front end face of the connecting cylinder.
After the pipe fitting is additionally held by the left die mechanism, the right die mechanism and the pushing mechanism, when the pipe fitting starts to advance from a static state, the instantaneous resistance of the pipe fitting is large, the connecting cylinder, the sliding rod and the pushing elastic piece are arranged, so that the pipe fitting starts to move and has buffering, and the damage to the pipe fitting is avoided.
The invention has the beneficial effects that:
through setting up the swing arm, pressing the pipe mechanism and wanting supporting part, press the die holder at the right side and lean on the in-process of pressing the die holder left, accomplish the suppression to the pipe fitting top surface automatically to can adjust the tube pressing board at the suppression position of pipe fitting according to the not unidimensional of pipe fitting, realized the reasonable centre gripping of full-size pipe fitting, improved the quality of follow-up pipe fitting of buckling, whole device structural design is exquisite, and mechanical action cooperates reasonable accurate, the result of use preferred.
Drawings
FIG. 1 is a schematic top view of an automotive square tube bender;
FIG. 2 is a schematic front view of the rotating mechanism;
FIG. 3 is a partial schematic view of FIG. 1;
FIG. 4 is a schematic view of the rotating member and the first positioning rod;
FIG. 5 is a schematic view showing the relationship between the pipe pressing mechanism and the second and third positioning rods;
fig. 6 is a front view of the clamp.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples.
Referring to fig. 1-6, the bending machine for the automobile square pipe fitting comprises a frame 1, a rotating mechanism, a left die mechanism, a right die mechanism and a pushing mechanism.
The frame 1 is used as a part for fixedly mounting each mechanism, a left die mechanism and a right die mechanism are respectively mounted at the front end of the frame according to the advancing direction of a pipe fitting to be bent, a rotating mechanism is mounted at the lower part of the left die mechanism, and a pushing mechanism is arranged behind the left die mechanism and the right die mechanism.
The rotating mechanism comprises a rotating frame 21, a rotating motor 22, a rotating shaft 23, a rotating gear 24 and a rotating chain 25. A cylindrical housing 11 is arranged at the left part of the front end of the frame 1, the cylindrical housing 11 is arranged vertically, and the side surface of the cylindrical housing 11 is provided with an opening, a rotating shaft 23 of the rotating mechanism is arranged vertically and is positioned in the cylindrical housing 11, the top end of the rotating shaft 23 penetrates through the top surface of the cylindrical housing 11, a section of the rotating shaft 23 is positioned above the frame 1, the part of the rotating shaft 23 penetrating through the cylindrical housing 11 can be installed by a bearing, the bottom end of the rotating shaft 23 penetrates through the bottom surface of the cylindrical housing 11, and the penetrating part can be installed by a bearing. The cylindrical housing 11 serves as a protection for the rotating shaft 23 and associated components, while its side faces have openings to facilitate the mounting arrangement of other components of the rotating mechanism.
The rotating gear 24 is sleeved and fixed on the rotating shaft 23, and the rotating gear 24 is located in the cylindrical housing 11. The rotating motor 22 is fixedly arranged below the bottom surface of the frame 1, the rotating amplitude of the rotating shaft 23 determines the rotating and unfolding angle of the rotating frame 21, namely the length of the bent part of the pipe fitting, and the requirement on the accuracy is high, so that the rotating motor 22 is a servo speed reduction motor. The rotating chain 25 is sleeved on the output shaft of the rotating motor 22 and the rotating gear 24 fixedly arranged on the rotating shaft 23, and is used for driving the output shaft of the rotating motor 22 and the rotating gear 24.
The rotating frame 21 has an upper arm 211 and a lower arm 212, the upper arm 211 and the lower arm 212 are respectively located on the top surface and the bottom surface of the cylindrical housing 11, and the upper arm 211 and the lower arm 212 are respectively penetrated by the rotating shaft 23 and fixed on the rotating shaft 23. The arrangement of the upper arm 211 and the lower arm 212 establishes a stable and firm integral structure of the rotating frame 21 and the rotating shaft 23, so that when the rotating shaft 23 rotates to drive the rotating frame 21 to rotate, the whole rotating frame 21 cannot deviate, and the position accuracy of other parts arranged on the rotating frame 21 is ensured.
And the left die mechanism comprises a left die clamping seat 31, a cross rod 32, a swinging arm 33 and a pipe pressing mechanism. The left die holder 31 is sleeved and fixed on the rotating shaft 23, the end face 311 of the left die holder 31 facing the pipe fitting, namely the right end face of the left die holder 31, is a vertical plane, the end face 311 is used for clamping the side face of the pipe fitting, the end face 311 of the left die holder 31 is provided with a stepped structure 312, the stepped structure 312 is horizontally arranged, and the top face of the stepped structure 312 is used for bearing the bottom face of the pipe fitting. The end surface 313 of the rear end of the left die holder 31 is a semi-cylindrical surface, the end surface 313 is smoothly connected with the end surface 311, and the stepped structure 312 is continued to the end surface 313. When the pipe is bent, the left die holder 31 rotates, and the pipe is bent by the end surface 313.
And the right die mechanism comprises a right die clamping seat 41, a die clamping sliding frame 42 and a die clamping air cylinder 43. The surface of the rotating frame 21 is provided with a die clamping slide rail 213, the die clamping slide rail 213 is perpendicular to the traveling direction of the pipe, two ends of the die clamping slide rail 213 are arranged in the middle of the surface of the rotating frame 21 and at the back part far away from the rotating shaft 23, a die clamping cylinder 43 is fixedly installed between the end of the die clamping slide rail 213 at the back part and the back end of the rotating frame 21, the bottom surface of the die clamping carriage 42 has a structure matched with the die clamping slide rail 213, the die clamping carriage 42 is slidably installed on the die clamping slide rail 213, the right die clamping seat 41 is fixed on the die clamping carriage 42, and the push rod of the die clamping cylinder 43 is horizontally arranged and fixedly connected with the right die clamping seat 41. The end surface 411 of the right die holder 41 facing the pipe, i.e. the left end surface, is used for clamping the side surface of the pipe, when the die clamping cylinder 43 drives the right die holder 41 and the die clamping carriage 42 to move, the end surface 311 of the left die holder 31, the top surface of the step structure 312, and the end surface 411 of the right die holder 41 are used for clamping two side surfaces of the pipe and the bottom surface of the load-bearing pipe.
And the cross bar 32, the swing arm 33 and the pipe pressing mechanism are used for pressing the top surface of the pipe fitting. The cross bar 32 is arranged on the top surface of the left die clamping seat 31, the cross bar 32 is parallel to the traveling direction of the pipe fitting, two bearing seats 321 are arranged on the top surface of the left die clamping seat 31, two ends of the cross bar 32 are respectively arranged on the two bearing seats 321, and the cross bar 32 can rotate along the central axis thereof. The cross bar 32 is fixedly provided with two rotating members 34 in a sleeved mode, the sleeved fixing points of the two rotating members 34 are respectively close to the two bearing seats 321, the top surface of the left clamping die holder 31 is located behind the cross bar 32 and is provided with a fixed frame 341, the fixed frame 341 is provided with two supports 342 parallel to the cross bar 32, the two supports 342 extend towards the front end and the rear end of the left clamping die holder 31, the outer ends of the supports 342 are respectively and hingedly provided with a rotating lantern ring 343, the two rotating lantern rings 343 can rotate, the rotating plane of the rotating lantern rings 343 is a vertical plane perpendicular to the advancing direction of pipe fittings, and the two rotating lantern rings 343 are respectively located right behind the two rotating. For the rotating ring 343, the bracket 342 and the fixing frame 341, which are hinged and installed, may be single, or two fixing frames may be separately installed to the rotating ring 343, and only a space is needed below the rotating ring 343. For the rotating member 34, the proximal end thereof is sleeved and fixed on the cross bar 32, the distal end thereof is hinged and provided with a rotating hinge rod 344, the rotating plane of the rotating hinge rod 344 is the same as that of the rotating collar 343, the rotating hinge rod 344 passes through the rotating collar 343, a rotating elastic member 345 is arranged and sleeved on the rotating hinge rod 344, and two ends thereof are respectively and fixedly connected to one end of the rotating hinge rod 344 far away from the rotating member 34 and the rotating collar 343. When the elastic rotating element 345 is in a relaxed state, the two rotating elements 34 are located below the cross bar 32, in this embodiment, the rotating elements 34 may be perpendicular to the cross bar 32, and the rotating elements 34 may also be slightly deviated rearward from the vertical direction, and the angle between the rotating elements 34 and the vertical direction is 0-15 °. The two swing arms 33 are provided, and the two swing arms 33 are parallel to each other and are fixed at the middle of the cross bar 32 by being sleeved at the proximal ends. When the pivot elastic member 345 is in a relaxed state, the two swing arms 33 are located above the crossbar 32.
The positioning seat 5 is arranged at the top of the right die holder 41, and all the parts mounted on the positioning seat 5 are linked with the part of the left die holder 31 for pressing the top surface of the pipe, for the present embodiment, the positioning seat 5 is a structure with a table top configuration, which protrudes out of the end surface 411 of the right die holder 41, or can be arranged within the range of the top surface of the right die holder 41, mainly considering the gravity center position of the whole structure formed by the positioning seat 5 and the mounted parts, as long as the gravity center position can be in a relatively balanced state, rather than the positioning seat 5 must protrude out of the end surface 411.
Two first positioning rods 51 are fixedly arranged on the positioning seat 5 and respectively linked with the two rotating pieces 34 of the left die clamping seat 31, the two first positioning rods 51 are parallel to each other and perpendicular to the advancing direction of the pipe fitting, and the proximal ends of the first positioning rods 51 are fixed on the top surface of the positioning seat 5. The distal ends of the two first positioning rods 51 are aligned with the two rotating members 34 respectively, that is, the straight line formed by the first positioning rods 51 passes through the rotating members 34, and the aligned position is at the middle-lower position of the rotating members 34, when the right die clamping seat 41 is driven by the die clamping cylinder 43 to move towards the left die clamping seat 31, the distal end of the first positioning rod 51 contacts the rotating members 34, as the right die clamping seat 41 drives the first positioning rod 51 to move continuously, the first positioning rod 51 drives the rotating members 34 to rotate, and when the rotating members 34 rotate to be completely located at the top surface of the first positioning rod 51, the rotating members 34 stop rotating and slide on the top surface of the first positioning rod 51, and at this time, the two swing arms 33 are in a horizontal state and located between the left die clamping seat 31 and the right die clamping seat 41. For the first positioning rod 51 and the rotating member 34, during the rotation of the rotating member 34, the contact surface between the two is set to be a cambered surface, such as the transition surface between the side surface and the bottom surface of the rotating member, and the transition surface between the end surface and the top surface of the distal end of the first positioning rod, so that the mutual sliding between the two can be smoother and the surface damage between the two can be avoided.
Two of the swing arms 33 are provided, two surfaces of the two swing arms 33 facing each other, that is, inner surfaces of the two swing arms 33, and the same sliding grooves 330 are provided at the same position, the two sliding grooves 330 are both provided along the extending direction of the swing arms 33, that is, when the rotating member 34 is located on the top surface of the first positioning rod 51, the two sliding grooves 330 are also in a horizontal state, both ends of the pipe pressing mechanism can slide in the sliding grooves 330, a sliding elastic member 331 is provided in the sliding grooves 330, a return spring is preferably provided as the sliding elastic member 331, and both ends of the sliding elastic member 331 are respectively fixed to the pipe pressing mechanism and one end of the sliding grooves 330 away from the right die holder 41.
The positioning seat 5 is provided with a second positioning rod 52 which is horizontally arranged and perpendicular to the moving direction of the pipe fitting, the second positioning rod 52 is a component which is linked with the pipe pressing mechanism, the near end of the second positioning rod 52 is fixed on the positioning seat 5, in this embodiment, a welding mode is used, or other equivalent fixed connection modes can be used, the far end of the second positioning rod 52 is aligned with the pipe pressing mechanism, the aligned position is a main body part of the pipe pressing mechanism, after the right die holder 41 moves and the sliding groove 330 is in a horizontal state, the far end of the second positioning rod 52 can push the pipe pressing mechanism to move towards the left die holder 31, and the sliding elastic piece 331 is used as a buffer component under the non-stressed condition of the pipe pressing mechanism, so that the pipe pressing mechanism can slide in the sliding groove.
The pipe pressing mechanism comprises a pipe pressing fixing seat 61, a pipe pressing rod 62, a pipe pressing plate 63 and a pipe pressing elastic part 64, the pipe pressing fixing seat 61 is a part aligned with the second positioning rod 52, the pipe pressing fixing seat 61 is provided with a through hole, the pipe pressing rod 62 passes through the through hole and is installed on the pipe pressing fixing seat 61, the pipe pressing rod 62 is perpendicular to the sliding groove 330, the pipe pressing rod 62 is in a vertical state when the swinging arm 33 is in a horizontal state, the bottom end of the pipe pressing rod 62 is vertically fixed with the pipe pressing plate 63, the pipe pressing plate 63 is used for pressing the top surface of a pipe, an elastic cushion 630 can be arranged on the bottom surface of the pipe pressing plate 63, rubber materials can be used, certain elasticity is provided to avoid damage caused by the pipe pressing plate 63 to the pipe, on the other hand, the materials and the pipe fittings have certain friction force, so that the pipe fittings, the optional answer spring that returns of pipe elastic component 64, and its both ends are fixed respectively at pressing pipe fixing base 62 and pressure pipe board 63, press pipe 62 to be in behind the horizontal state at sliding tray 330, when pressing pipe 62 to move down and drive pressure pipe board 63 and suppress the top surface of pipe fitting, press pipe elastic component 64 to stretch out gradually, after the effort of driving pipe 62 downstream is removed, thereby the tensile force that presses pipe elastic component 64 produced drives and presses pipe 62 to move up and reset, in this embodiment, press pipe 62, press pipe elastic component 64 all to be provided with two. The number of the arrangement is determined according to actual conditions, is limited to two, and can be one or more than two.
The inner surfaces of the two swing arms 33 at the distal ends are provided with a lever 332 parallel to the tube travel direction, and the lever 332 is mainly a connecting member and therefore needs a certain strength, so that a reinforcing plate may be provided where the lever 332 connects the swing arms 33, and the lever 332 is fixed by welding. Two bent pressing rods 333 are arranged, the bent parts are hinged to the rod piece 332, the rotating planes of the pressing rods 333 are perpendicular to the advancing direction of the pipe fitting, a pressing rod sleeve ring 321 is hinged to the top end of the pressing rod 62, the far ends of the pressing rods 333 are close to the right die clamping seat, and the near ends of the pressing rods 333 slide through the pressing rod sleeve ring 321.
The positioning seat 5 is provided with two third positioning rods 53, the third positioning rods 53 are horizontally arranged and perpendicular to the advancing direction of the pipe fitting, the third positioning rods 53 are used as parts linked with the pressure rods 333, the distal ends of the third positioning rods 53 are respectively aligned with the distal ends of the corresponding pressure rods 333, the distal end of the second positioning rod 52 is aligned with the pressure pipe fixing seat 61, and after the second positioning rod 52 pushes the pressure pipe positioning seat 61, the third positioning rod 53 can push one section of the pressure rod 333 with the distal end, drive the pressure rod 333 to rotate around the rod 332 and enable the pressure pipe rod 62 to move downwards. The second positioning rod 52 pushes the tube pressing positioning seat 61 to move, and the third positioning rod 53 pushes the pressing rod 333 after a certain time difference, that is, the tube pressing mechanism presses the tube plate downwards after moving a certain distance towards the left die clamping seat 31.
The top of the positioning seat 5 is provided with two slideways 531 parallel to the third positioning rod 53, two third positioning seats 532, two third positioning plates 533, and two third positioning elastic members 534, the third positioning plate 533 is vertically disposed, the bottom of the third positioning plate 533 is provided with a sliding structure matched with the slideways 531 and is slidably mounted on the slideways 531, the third positioning plate 533 fixes the third positioning rod 53, the third positioning seat 532 is fixed on the top of the positioning seat 5, two ends of the third positioning elastic members 534 are respectively fixed on the proximal end surface of the third positioning plate 533 and the distal end surface of the third positioning seat 532, and the elastic force generated by the third positioning elastic members 534 is greater than the elastic force generated by the pressure pipe elastic members 64. The third positioning rod 53 is mechanically operated to push the pressing rod first and then to be stationary.
Pushing mechanism, the setting is at left side mould mechanism, the rear of right side mould mechanism, including holder 71, promote fixing base 72, actuating mechanism 73, frame 1 surface is located the rear of left side mould mechanism and right side mould mechanism and is provided with and promotes track 10, and the direction that promotes track 10 and advance along the pipe fitting sets up, promotes fixing base 72 and slides the assembly and promote track 10, and the driver drives 73 messenger and promotes fixing base 72 and slide at promoting track 10, and holder 71 is fixed and is promoting fixing base 72 and be used for the rear end of centre gripping pipe fitting. For the driving mechanism 73, since the tube member has a high accuracy of advancing, a bidirectional speed reducing motor may be used, and as for the driving method, a rolling member such as a roller (not shown) may be disposed on the pushing fixing seat 72 and driven by the driving mechanism 73, which is a conventional technique and will not be described in detail.
For the clamping member 71, the clamping member 71 includes a cylindrical barrel 711, a tube positioning seat 712, a tube clamping plate 713, and a connecting barrel 714, the connecting barrel 714 is coaxial with the cylindrical barrel 711 and is disposed along the tube advancing direction, the rear end of the connecting barrel 714 is disposed on the pushing fixing seat 72, the front end surface of the connecting barrel 714 is disposed with a coaxial sliding rod 715, the sliding rod 715 is slidably inserted into the rear end surface of the cylindrical barrel 711, a pushing elastic member 716 is disposed to be sleeved on the sliding rod 715, the pushing elastic member 716 is a return spring, two ends of the pushing elastic member 716 are respectively fixedly connected to the rear end surface of the cylindrical barrel 711 and the front end surface of the connecting barrel 714, the tube positioning seat 712 is fixed to the front end surface of the cylindrical barrel 711, and has a bottom end face 7121 for bearing the bottom surface of the tube and a side end face 7122 for abutting against the side surface of the tube, and the side end face 7112 and the left clamping mold seat are located on the, the pipe clamping plate 713 is parallel to the vertical plate 7123 and can slide in the bottom end face 7121 of the pipe positioning seat along the direction perpendicular to the advancing direction of the pipe, a threaded rod 7124 with matched threads is vertically inserted into the vertical plate 7123, a hand wheel 7125 is fixedly arranged at the outer end of the threaded rod 7124, the inner end of the threaded rod can abut against the pipe clamping plate 713, and the pipe clamping plate 713 is used for tightly abutting against the other side face of the pipe.
The embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the present invention and implement the present invention, and not to limit the protection scope of the present invention. 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 bending machine for square automobile pipe fittings comprises:
a frame; and
the rotating mechanism comprises a rotating frame, a rotating motor, a rotating shaft, a rotating chain and a rotating gear sleeved on the rotating shaft, the rotating shaft is vertically arranged and assembled at the front end of the rack, the upper part and the lower part of the near end of the rotating frame are fixedly sleeved on the middle part and the bottom of the rotating shaft respectively, and an output shaft of the rotating motor and the rotating gear are in transmission through the rotating chain;
the left die mechanism comprises a left die clamping seat, a cross rod, a swinging arm and a pipe pressing mechanism, the left die clamping seat is sleeved and fixed on the rotating shaft, the end face, facing the pipe fitting, of the left die clamping seat is a vertical plane and used for pressing the side face of the pipe fitting, the left die clamping seat is provided with a stepped structure and used for bearing the bottom face of the pipe fitting, the cross rod is parallel to the moving direction of the pipe fitting and is rotatably installed at the top of the left die clamping seat, the swinging arm is vertically sleeved on the cross rod, and the pipe pressing mechanism is arranged on the swinging arm and used for pressing;
the die clamping sliding frame is arranged on the die clamping sliding rail in a sliding mode, the surface, facing the end face of the pipe fitting, of the right die clamping seat is a vertical plane for pressing the side face of the pipe fitting, and the die clamping cylinder is used for driving the die clamping sliding frame to move in a reciprocating mode;
pushing mechanism sets up at the rear of left side mould mechanism, right side mould mechanism, including holder, promotion fixing base, actuating mechanism, the rack surface is located left side mould mechanism and the rear of right side mould mechanism is provided with the promotion track, the direction setting that the promotion track was advanced along the pipe fitting, it is in to promote the fixing base slip assembly promote the track, the driving machine orders about promote the fixing base and be in it slides to promote the track, the holder is fixed promote the fixing base and be used for the rear end of centre gripping pipe fitting.
2. The bending machine for square pipe of automobile as claimed in claim 1, wherein the top of the left clamp die holder is provided with two bearing seats for mounting two ends of the cross bar, two ends of the cross bar are sleeved and fixed with rotating members, a rotating connecting frame is provided and the rotating connecting frame is provided with two rotating rings hinged to each other, the two rotating rings can rotate in a vertical plane perpendicular to the advancing direction of the pipe and are respectively located behind the two rotating members, a rotating hinge rod is provided, one end of the rotating hinge rod is hinged to the distal end of the rotating member, the other end of the rotating hinge rod slides through the rotating ring, the rotating hinge rod is sleeved with a rotating elastic member, and two ends of the rotating elastic member are respectively fixed to one end of the rotating hinge rod away from the rotating member and the rotating ring, when the rotating elastic member is in a loose state, the distal end of the rotating member is located below the cross bar.
3. The automotive square pipe bender according to claim 2, wherein a positioning seat is provided at the top of the right die holder, two first positioning rods are provided, the first positioning rods are parallel to each other and are transversely arranged, the first positioning rods are perpendicular to the traveling direction of the pipe, the proximal ends of the two positioning rods are fixed at the positioning seat, the distal ends of the two positioning rods are respectively aligned with the two rotating members, when the right die holder moves, the distal ends of the positioning rods can contact with the rotating members and drive the rotating members to rotate, and when the distal ends of the rotating members slide on the top surfaces of the positioning rods, the swing arms rotate with the cross rods to be horizontal and are located between the left die holder and the right die holder.
4. The bending machine for square pipe of automobile as claimed in claim 3, wherein there are two of said swing arms, and said two swing arms are parallel to each other, and the inner surfaces of said swing arms facing each other are provided with sliding grooves, when the distal end of said rotating member slides on the top surface of said positioning rod, said sliding grooves are in horizontal state, the two ends of said pipe pressing mechanism can slide in said sliding grooves, and said sliding grooves are provided with sliding elastic members, and the two ends of said sliding elastic members are respectively fixed on said pipe pressing mechanism and the end of said sliding grooves far away from said right die holder.
5. The automotive square pipe bender according to claim 4, wherein said positioning seat is provided with a second positioning rod horizontally arranged and perpendicular to the moving direction of the pipe, the proximal end of said second positioning rod is fixed on said positioning seat, and the distal end of said second positioning rod is aligned with said pipe pressing mechanism, and after said right clamping die holder moves and said sliding groove is in the horizontal state, the distal end of said second positioning rod can push said pipe pressing mechanism to move towards the left clamping die holder.
6. The bending machine for square pipe fittings of automobiles according to claim 5, wherein the pipe pressing mechanism comprises a pipe pressing fixing seat, a pipe pressing rod, a pipe pressing plate and a pipe pressing elastic member, the pipe pressing fixing seat is provided with a through hole, the pipe pressing rod is installed on the pipe pressing fixing seat through the through hole, the pipe pressing rod is perpendicular to the sliding groove, the pipe pressing plate is vertically fixed at the bottom end of the pipe pressing rod, the pipe pressing elastic member is sleeved on the pipe pressing rod, and the two ends of the pipe pressing elastic member are respectively fixed on the pipe pressing fixing seat and the pipe pressing plate, the pipe pressing rod can stretch the pipe pressing elastic member to enable the pipe pressing plate to move downwards after the sliding groove is in a horizontal state, the pipe pressing rod and the pipe pressing elastic member are both provided with two, and the inner surfaces of the two swing arms at the far ends are both provided with rod members parallel to, the pipe fitting clamping device is characterized in that two bent pressing rods are arranged, the bent parts are hinged to the rod pieces, the rotating planes of the pressing rods are perpendicular to the advancing direction of the pipe fitting, a pressing rod sleeve ring is hinged to the top end of each pipe pressing rod, the far ends of the pressing rods are close to the right die clamping seat, and the near ends of the pressing rods penetrate through the pressing rod sleeve ring in a sliding mode.
7. The bending machine for square pipe of automobile according to claim 6, wherein the positioning seat is provided with two third positioning rods, the third positioning rods are horizontally arranged and perpendicular to the traveling direction of the pipe, the distal ends of the third positioning rods are respectively aligned with the distal ends of the corresponding pressing rods, the distal end of the second positioning rod is aligned with the pressing pipe fixing seat, and after the second positioning rod pushes the pressing pipe positioning seat, the third positioning rod pushes a section of the pressing rod with a distal end, so as to drive the pressing rod to rotate around the rod member and move the pressing pipe downward.
8. The bending machine for square pipe of automobile according to claim 7, wherein two slideways parallel to the third positioning rod, two third positioning seats, two third positioning plates, and two third positioning elastic members are disposed on top of the positioning seats, the third positioning plates are slidably mounted on the slideways and fix the third positioning rods, the third positioning seats are fixed on top of the positioning seats, two ends of the third positioning elastic members are respectively fixed on the proximal end surfaces of the third positioning plates and the distal end surfaces of the third positioning seats, and the elastic force generated by the third positioning elastic members is greater than the elastic force generated by the pressure pipe elastic members.
9. The automotive square tubing bender according to claim 1, wherein said clamp comprises a cylindrical barrel disposed along a tubing advancing direction and having a rear end disposed on said pushing fixture, a tubing positioning seat fixed on a front end surface of said cylindrical barrel and having a bottom end surface for bearing a bottom surface of the tubing and a side end surface for abutting against a side surface of the tubing, and said side end surface and said left clamp die seat being located on a same side of the tubing, a riser fixed on a bottom end surface of said tubing positioning seat, a tubing clamping plate parallel to the riser and slidable on a bottom end surface of said tubing positioning seat along a direction perpendicular to the tubing advancing direction, said riser being vertically inserted with a threaded rod having matching threads, a hand wheel fixed on an outer end of said threaded rod, and an inner end abutting against said tubing clamping plate, the pipe fitting clamping plate is used for tightly attaching to the other side face of the pipe fitting.
10. The bending machine for square pipe of automobile of claim 9, wherein said pipe positioning seat is fixedly provided with a connecting cylinder coaxial with said cylindrical cylinder, a front end surface of said connecting cylinder is provided with a coaxial sliding rod, said sliding rod is slidably inserted into a rear end surface of said cylindrical cylinder, a pushing elastic member is sleeved on said sliding rod, and two ends of said pushing elastic member are fixedly connected to a rear end surface of said cylindrical cylinder and a front end surface of said connecting cylinder, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910910287.4A CN110814113B (en) | 2019-09-25 | 2019-09-25 | Bending machine for square pipe fittings of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910910287.4A CN110814113B (en) | 2019-09-25 | 2019-09-25 | Bending machine for square pipe fittings of automobile |
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| CN110814113A true CN110814113A (en) | 2020-02-21 |
| CN110814113B CN110814113B (en) | 2021-04-02 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19911283A1 (en) * | 1999-03-13 | 2000-09-21 | Thyssen Krupp Automotive Gmbh | Bending device for profile legs of torsion profiles of composite steering shafts has frame with profile clamping unit and driven slide with forming and support jaws |
| KR20100018682A (en) * | 2008-08-07 | 2010-02-18 | 설상석 | Formation system of elbow and formation method |
| CN201572831U (en) * | 2009-10-22 | 2010-09-08 | 张家港市杰创机械有限公司 | Forming device in pipe bender |
| CN107999662A (en) * | 2017-12-07 | 2018-05-08 | 和和机械（张家港）有限公司 | Swan neck system in bending machine |
| CN109530502A (en) * | 2018-11-14 | 2019-03-29 | 白尊敏 | Swan neck system and left and right with the swan neck system are to shared bend pipe head |
-
2019
- 2019-09-25 CN CN201910910287.4A patent/CN110814113B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19911283A1 (en) * | 1999-03-13 | 2000-09-21 | Thyssen Krupp Automotive Gmbh | Bending device for profile legs of torsion profiles of composite steering shafts has frame with profile clamping unit and driven slide with forming and support jaws |
| KR20100018682A (en) * | 2008-08-07 | 2010-02-18 | 설상석 | Formation system of elbow and formation method |
| CN201572831U (en) * | 2009-10-22 | 2010-09-08 | 张家港市杰创机械有限公司 | Forming device in pipe bender |
| CN107999662A (en) * | 2017-12-07 | 2018-05-08 | 和和机械（张家港）有限公司 | Swan neck system in bending machine |
| CN109530502A (en) * | 2018-11-14 | 2019-03-29 | 白尊敏 | Swan neck system and left and right with the swan neck system are to shared bend pipe head |
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|---|---|
| CN110814113B (en) | 2021-04-02 |
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