A fully automatic turn-over stretch machine

Abstract

The present application relates to the technical field of stretching machine, especially to a full-automatic overturning stretching machine, which comprises a base, transverse stretching frames are slidingly installed on the left and right sides of the base, shaping frames are fixedly connected to the inner sides of the transverse stretching frames, the shaping frames are slidingly installed on the base along the transverse direction, lifting overturning mechanisms are arranged on the outer sides of the shaping frames, lifting frames are slidingly installed on the inner sides of the shaping frames, stretching detection mechanisms for detecting stretching amplitudes are equidistantly arranged on the inner bottom sides of the lifting frames, and stress relief mechanisms for eliminating internal stresses of workpieces are arranged between the stretching detection mechanisms. The stretching detection mechanisms are used for synchronously detecting stretching degrees of different workpieces, the conductive contact tabs are in contact with different conductive rings to be electrified during the stretching process of the workpieces, and then the accurate detection of different stretching degrees is realized. According to the detection result, the vibration amplitude of the stress relief mechanism is adaptively adjusted, the generality is high, and the stretching requirements of different products can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stretching machine, and particularly to a full-automatic overturning stretching machine. BACKGROUND

[0002] Stretching machines are widely used in product shaping and performance testing, and are widely used in the processing fields of spinning, plastics and metals.

[0003] The existing stretching machine is prone to deformation after stretching the workpiece due to the internal stress of the workpiece. In order to minimize the deformation of the stretched workpiece due to internal stress, the stretched workpiece needs to be stress-relieved. However, the existing stretching machine does not have a stress-relieving function and needs to be reprocessed, which reduces the processing efficiency of the product and needs to be solved. SUMMARY

[0004] In view of the shortcomings of the prior art, the present application provides a full-automatic overturning stretching machine, which solves the technical problem of low processing efficiency caused by the lack of stress-relieving function of the stretching machine.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a full-automatic overturning stretching machine, comprising a base, the left and right sides of the base are slidably installed with a horizontal stretching frame, the inner sides of the horizontal stretching frame are fixedly connected with a shaping frame, the shaping frames are slidably installed on the base along the horizontal direction, the outer sides of the shaping frames are provided with a lifting and overturning mechanism, the inner sides of the shaping frames are slidably installed with a lifting frame, the inner bottom sides of the lifting frames are equally provided with a stretching detection mechanism for detecting the stretching amplitude, and a stress-relieving mechanism for eliminating the internal stress of the workpiece is arranged between the stretching detection mechanisms;

[0006] The stretching detection mechanism comprises a horizontal positioning rod fixedly connected to the lower end of the side wall of the lifting frame, the horizontal positioning rods are equally arranged along the front-to-back direction of the base, the side walls of the horizontal positioning rods are fixedly connected with elastic knocking pieces, the elastic knocking pieces are equally arranged along the horizontal positioning rods, and the outer sides of the last elastic knocking pieces are fixedly connected with conductive contact pieces;

[0007] The stress-relieving mechanism comprises a vibrating bottom plate placed horizontally between the stretching detection mechanisms, the left and right side walls of the vibrating bottom plate are provided with movable grooves, the movable grooves are equally provided along the front-to-back direction of the vibrating bottom plate, the horizontal positioning rods are inserted into the interiors of the movable grooves, and the inner walls of the movable grooves are fixedly connected with positioning sleeves, the positioning sleeves are equally arranged along the inner walls of the movable grooves;

[0008] The inner wall of the positioning sleeve is slidably provided with an elastic telescopic sleeve, an annular groove is formed in the inner side of the positioning sleeve, an electromagnet is fixedly connected to the inner wall of the annular groove, the electromagnets are equidistantly arranged along the inner wall of the annular groove, the outer side of the elastic telescopic sleeve is fixedly connected with a limiting cylinder, a permanent magnetic positioning block is fixedly connected to the inside of the limiting cylinder, and the electromagnet can slide relative to the inside of the limiting cylinder.

[0009] Preferably, the lateral positioning rods on the left and right sides of the vibration base are arranged in a staggered manner, the spacing between adjacent lateral positioning rods is twice the spacing between the movable grooves, and the positioning sleeves inside the adjacent movable grooves are mirror images of each other.

[0010] Preferably, the lifting and overturning mechanism comprises a gas cylinder fixedly connected to the outer side wall of the shaping frame, a sliding rod slidably mounted on the top of the gas cylinder, a motor fixedly connected to the top of the sliding rod, a gear fixedly connected to the output end of the motor, a half-ring gear rack engaged with the bottom of the gear, and a pneumatic sliding block fixedly connected to the bottom of the half-ring gear rack.

[0011] The pneumatic sliding block is fixedly connected to the lifting frame, the gas cylinder is used to drive the pneumatic sliding block to slide in the vertical direction, the pneumatic sliding block is slidably mounted in the inside of the shaping frame in the vertical direction, and a semicircular groove for the rotation of the lifting frame is formed in the inside of the shaping frame close to the lifting frame.

[0012] Preferably, the inner side of the lateral stretching frame is fixedly connected with a telescopic rod, the distal end of the telescopic rod is fixedly connected with a hydraulic rod, the hydraulic rods are symmetrically arranged on the front and rear sides of the base, and a controller is fixedly installed on one side of the base.

[0013] Preferably, the inner side of the positioning sleeve is provided with an electrically conductive ring, the electrically conductive ring is fixedly connected to the inner wall of the movable groove, and the inner diameter of the electrically conductive ring is smaller than the diameter of the electrically conductive contact piece.

[0014] The elastic knocking piece and the elastic telescopic sleeve are both made of elastic wear-resistant material, and the diameter of the elastic knocking piece is smaller than the inner diameter of the electrically conductive ring.

[0015] Preferably, the spacing between adjacent positioning sleeves is flexibly adjustable according to the internal stress difference of different products.

[0016] Through the above technical solutions, the present application provides a full-automatic overturning stretching machine, which has at least the following beneficial effects:

[0017] 1. The present application realizes synchronous detection of the stretching degree of different workpieces through the stretching detection mechanism, and realizes accurate detection of different stretching degrees by making the electrically conductive contact piece contact and electrify different electrically conductive rings during the stretching process of the workpiece, and adjusts the vibration amplitude of the stress relief mechanism according to the detection result, which has strong versatility and can meet the stretching needs of different products.

[0018] 2、The stress relief mechanism is opened synchronously through the detection result of the tensile detection result, and the elastic knocking piece is in contact with the elastic expansion sleeve in the process of sliding in the movable groove, so that the vibration knocking is achieved to realize the stress relief effect, the product deformation caused by internal stress in the tensile process is effectively solved, the processing efficiency of product tensile is effectively enhanced, and the scrap rate of the product can be reduced.

[0019] 3、The stress relief effect is realized through the vibration knocking of the elastic knocking piece and the elastic expansion sleeve, the deformation degree of the elastic expansion sleeve is adaptively changed when different tensile amplitudes are realized through the cooperation of the electromagnet, the permanent magnet positioning block and the elastic expansion sleeve, the vibration intensity is changed, and then the vibration amplitude of the vibration stress relief is adaptively adjusted according to the product tensile amplitude, the universality is high, and the tensile processing of various workpieces is suitable.

[0020] 4、The tensile amplitude is accurately recorded through the power-on times of the conductive contact piece and the conductive ring in different tensile states in the transverse tensile process, the vibration amplitude is adaptively adjusted according to different detection results when the transverse tensile frame returns to the initial position after tensile, the cooperation between the two in the tensile and recovery processes is ingenious, the relevance is high, and the application prospect is good.

[0021] 5、The lifting and overturning mechanism is used for overturning the shaping frame, the cooperation between the air cylinder, the motor and the half-ring rack is realized, the synchronous overturning of the tensile completed workpiece is realized, the tensile state and process condition of the workpiece bottom are monitored in real time, and the processing efficiency of product tensile processing is further improved. DETAILED DESCRIPTION

[0022] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic view of the three-dimensional structure of the present application;

[0024] Figure 2 It is an enlarged schematic view of the structure at A in the present application; Figure 1

[0025] Figure 3 It is an enlarged schematic view of the structure at B in the present application; Figure 1

[0026] Figure 4 It is a schematic view of the internal section structure of the vibration bottom plate of the present application;

[0027] Figure 5 It is a schematic view of the internal section structure of the positioning sleeve of the present application;​​

[0028] Figure 6 The schematic diagram of the top structure of the present application;

[0029] Figure 7 The schematic diagram of the internal structure of the present application Figure 6 The schematic diagram of the internal structure of the present application

[0030] Figure 8 The schematic diagram of the initial state structure of the elastic telescopic sleeve of the present application;

[0031] Figure 9 The schematic diagram of the state structure of the elastic telescopic sleeve after deformation of the present application.

[0032] In the figure: 1, base; 2, horizontal stretching frame; 3, hydraulic rod; 4, shaping frame; 5, lifting and overturning mechanism; 50, air cylinder; 51, sliding rod; 52, motor; 53, gear; 54, half ring rack; 55, pneumatic sliding block; 6, lifting frame; 7, stretching detection mechanism; 70, horizontal positioning rod; 71, conductive contact; 72, elastic knocking piece; 8, controller; 9, stress relief mechanism; 90, vibrating base plate; 91, movable groove; 92, positioning sleeve; 93, elastic telescopic sleeve; 94, annular groove; 95, electromagnet; 96, limiting cylinder; 97, permanent magnet positioning block; 98, conductive ring; 10, telescopic rod. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0034] Embodiment one

[0035] Please refer to Figures 1-3The utility model relates to a full -automatic turnover stretch machine, including base 1, both sides of base 1 are slidably installed with transverse stretch frame 2, the inside of transverse stretch frame 2 is fixedly connected with shaping frame 4, shaping frame 4 is slidably installed on base 1 along the transverse, the outside of shaping frame 4 is equipped with lifting turnover mechanism 5, the inside of shaping frame 4 is slidably installed with lifting frame 6, the workpiece to be stretched processing is placed in the inside of lifting frame 6 at the beginning, and is placed on the vibration base plate 90, then the workpiece both ends are connected with the hook of the inside of lifting frame 6, then open hydraulic rod 3, realize the transverse stretch frame 2 of both sides to the outside sliding, to reach the stretching of workpiece, stretches to the processing demand of corresponding, opens lifting turnover mechanism 5, realizes the lifting and turnover of workpiece, the stretching of workpiece bottom is observed, after observing the completion and stretching demand, open lifting turnover mechanism 5 again, realize workpiece recovery to initial position, remove the connection between hook and workpiece, open hydraulic rod 3, make the transverse stretch frame 2 restore to initial position, in the stretching and recovery process of workpiece, through the detection result of stretching detection mechanism 7, realize the self -adaptation of workpiece and eliminate stress, the inside bottom of lifting frame 6 is equidistantly equipped with the stretching detection mechanism 7 for detecting stretching amplitude, and the stretching detection mechanism 7 is equipped with the stress relief mechanism 9 for eliminating the internal stress of workpiece between the stretching detection mechanism 7;Stretching detection mechanism 7 includes the transverse positioning rod 70 fixedly connected in the side wall lower end of lifting frame 6, and the transverse positioning rod 70 is equidistantly arranged along the front and back direction of base 1, the side wall of transverse positioning rod 70 is fixedly connected with elastic knock piece 72, and elastic knock piece 72 is equidistantly arranged along the transverse positioning rod 70, and the outside of the last end elastic knock piece 72 is fixedly connected with conducting contact 71, utilizes the contact of conducting contact 71 and the conducting ring 98 in the inside of stress relief mechanism 9 in the stretching process, realizes the synchronous detection of the stretching degree of different workpieces through stretching detection mechanism 7, and the conducting contact 71 is contacted with different conducting rings 98 in the stretching process of workpiece, and the accurate detection of different stretching degrees is realized, and the vibration amplitude of stress relief mechanism 9 is adaptively adjusted according to the detection result, and the versatility is strong, can satisfy the stretching demand of different products.

[0036] Example two

[0037] Please refer to Figures 4-9 The utility model discloses a full -automatic turnover stretch machine, including base 1, both sides of base 1 are slidably installed with transverse stretch frame 2, the inside of transverse stretch frame 2 is fixedly connected with shaping frame 4, shaping frame 4 is slidably installed on base 1 along the transverse, the outside of shaping frame 4 is equipped with lifting turnover mechanism 5, the inside of shaping frame 4 is slidably installed with lifting frame 6, the workpiece to be stretched processing is placed in the inside of lifting frame 6 at the beginning, and is placed on the vibration base plate 90, then the workpiece both ends are connected with the hook of the inside of lifting frame 6, then open hydraulic rod 3, realize the transverse stretch frame 2 of both sides to the outside sliding, to reach the stretching of workpiece, stretches to the processing demand of corresponding, opens lifting turnover mechanism 5, realizes the lifting and turnover of workpiece, the stretching of workpiece bottom is observed, after observing the completion and stretching demand, open lifting turnover mechanism 5 again, realize workpiece recovery to initial position, remove the connection between hook and workpiece, open hydraulic rod 3, make the transverse stretch frame 2 restore to initial position, in the stretching and recovery process of workpiece, through the detection result of stretching detection mechanism 7, realize the self -adaptation of workpiece and eliminate stress, the inside bottom of lifting frame 6 is equidistantly equipped with the stretching detection mechanism 7 for detecting stretching amplitude, and the stretching detection mechanism 7 is equipped with the stress relief mechanism 9 for eliminating the internal stress of workpiece between the stretching detection mechanism 7;Stretching detection mechanism 7 includes the transverse positioning rod 70 fixedly connected in the side wall lower end of lifting frame 6, and the transverse positioning rod 70 is equidistantly arranged along the front and back direction of base 1, the side wall of transverse positioning rod 70 is fixedly connected with elastic knock piece 72, and elastic knock piece 72 is equidistantly arranged along the transverse positioning rod 70, and the outside of the last end elastic knock piece 72 is fixedly connected with conducting contact 71, utilizes the contact of conducting contact 71 and the conducting ring 98 in the inside of stress relief mechanism 9 in the stretching process, realizes the synchronous detection of the stretching degree of different workpieces through stretching detection mechanism 7, and the conducting contact 71 is contacted with different conducting rings 98 in the stretching process of workpiece, and the accurate detection of different stretching degrees is realized, and the vibration amplitude of stress relief mechanism 9 is adaptively adjusted according to the detection result, and the versatility is strong, can satisfy the stretching demand of different products.

[0038] The stress relief mechanism 9 comprises a vibrating base plate 90 arranged between the tensile detection mechanisms 7 in the transverse direction, the left and right side walls of the vibrating base plate 90 are provided with movable grooves 91, the movable grooves 91 are equidistantly arranged along the front and back directions of the vibrating base plate 90, the transverse positioning rods 70 are inserted into the interiors of the movable grooves 91, the inner walls of the movable grooves 91 are fixedly connected with positioning sleeves 92, the positioning sleeves 92 are equidistantly arranged along the inner walls of the movable grooves 91, in the tensile process, the transverse positioning rods 70 originally located in the interiors of the movable grooves 91 slide and make the conductive contact pieces 71 continuously contact and electrify the conductive rings 98, in the tensile process, the contact and electrification times of the conductive contact pieces 71 and the conductive rings 98 are counted, so that the tensile amplitude is detected in real time, after the tensile process is completed and the lifting and overturning are performed, when the transverse positioning rods 70 return to the initial positions, the vibration and knocking of the vibrating base plate 90 are realized through the contact of the elastic knocking pieces 72 and the elastic telescopic sleeves 93, the vibration and knocking are transmitted to the bottom wall of the workpiece, so that the stress relief effect is achieved. The stress relief mechanism 9 is synchronously opened through the detection results of the tensile detection mechanisms 7, at the same time, the vibration and knocking for realizing the stress relief effect are realized through the continuous contact and extrusion contact of the elastic knocking pieces 72 with the elastic telescopic sleeves 93 in the transverse sliding process in the interiors of the movable grooves 91, the problem that the product is deformed due to the internal stress in the tensile process is effectively solved, the processing efficiency of the product tensile is effectively enhanced, and the defective rate of the product can be reduced.

[0039] As the preferred technical scheme of the embodiment, the elastic telescopic sleeve 93 is slidably arranged on the inner wall of the positioning sleeve 92, the inner side of the positioning sleeve 92 is provided with an annular groove 94, the inner wall of the annular groove 94 is fixedly connected with electromagnets 95, the electromagnets 95 are equidistantly arranged along the inner wall of the annular groove 94 in the circumferential direction, the outer side of the elastic telescopic sleeve 93 is fixedly connected with a limiting cylinder 96, the inside of the limiting cylinder 96 is fixedly connected with permanent magnetic positioning blocks 97, the magnetism of the permanent magnetic positioning blocks 97 is consistent with the magnetism of the electromagnets 95, so that the magnetic repulsion generated after the electromagnets 95 are powered on makes the permanent magnetic positioning blocks 97 slide towards the inner side of the positioning sleeve 92, and then makes the elastic telescopic sleeve 93 deform, the electromagnets 95 can relatively slide along the limiting cylinder 96, according to the detection result of the different tensile detection mechanisms 7, when the tensile amplitude of the workpiece is larger, the contact frequency of the conductive contact piece 71 and the conductive ring 98 is larger at this time, the current of the electromagnets 95 controlled by the controller 8 is larger at this time, the sliding amplitude of the corresponding permanent magnetic positioning blocks 97 is larger, and therefore the deformation amplitude of the elastic telescopic sleeve 93 is larger, corresponding to the reverse movement process of the transverse positioning rod 70, the vibration amplitude of the elastic knocking piece 72 and the elastic telescopic sleeve 93 when they contact is larger, the vibration strength is larger at this time, and the vibration knocking stress relief amplitude is adaptively adjusted when the workpiece is larger in tensile deformation; similarly, when the tensile amplitude of the workpiece is smaller, the vibration amplitude of the vibration knocking stress relief is smaller. The vibration knocking effect of the stress relief is realized when the elastic knocking piece 72 and the elastic telescopic sleeve 93 contact, and the elastic telescopic sleeve 93 is adaptively changed in deformation degree when the electromagnets 95, the permanent magnetic positioning blocks 97 and the elastic telescopic sleeve 93 are cooperatively arranged, the vibration strength is changed, and the vibration amplitude of the vibration stress relief is adaptively adjusted according to the tensile amplitude of the product, which is strong in versatility and suitable for tensile processing of various workpieces.

[0040] Embodiment three

[0041] Please refer to Figures 4-6 , the embodiment is basically the same as embodiment one, the embodiment is made on the basis of embodiment one and has the same beneficial effects as embodiment one, and the same parts are referred to each other and will not be described in detail here.

[0042] The transverse positioning rods 70 on the left and right sides of the vibration base plate 90 are arranged in a staggered manner, in order to ensure that the transverse positioning rods 70 slide along the inside of the vibration base plate 90 during the transverse stretching process. At this time, the staggered arrangement of the transverse positioning rods 70 ensures that the lifting frames 6 on both sides do not relative extrusion when they are restored to the initial position, thereby ensuring the stretching distance of the two lifting frames 6 and avoiding the extrusion and fracture of the transverse positioning rods 70 on both sides. The spacing value of the adjacent transverse positioning rods 70 is twice the spacing value of the movable grooves 91, and the positioning sleeves 92 inside the adjacent movable grooves 91 are mirror images of each other. Since the transverse positioning rods 70 on both sides of the vibration base plate 90 are arranged in a staggered manner, the positioning sleeves 92 inside the adjacent movable grooves 91 are also arranged in a reverse manner. In this way, the multiple groups of transverse positioning rods 70 inside the vibration base plate 90 are synchronously knocked, thereby ensuring that the vibration stress relief is achieved.

[0043] Embodiment Four

[0044] For details, please refer to Figures 1-2 This embodiment is basically the same as embodiment one, and is made on the basis of embodiment one and has the same beneficial effects as embodiment one. For the same parts, please refer to each other, and here is not described in detail.

[0045] The lifting and overturning mechanism 5 includes a cylinder 50 fixedly connected to the outer side wall of the shaping frame 4. The top of the cylinder 50 is slidingly installed with a sliding rod 51. The top of the sliding rod 51 is fixedly connected with a motor 52. The output end of the motor 52 is fixedly connected with a gear 53. The bottom of the gear 53 is engaged with a half-ring gear rack 54. The bottom of the half-ring gear rack 54 is fixedly connected with a pneumatic sliding block 55. The pneumatic sliding block 55 is fixedly connected to the lifting frame 6. The cylinder 50 is used to drive the pneumatic sliding block 55 to slide in the vertical direction. During the stretching of the workpiece, the cylinder 50 is started to drive the pneumatic sliding block 55 to move upwards, thereby driving the lifting frame 6 to move upwards synchronously. At this time, the sliding rod 51 at the bottom wall of the motor 52 moves upwards along the top of the cylinder 50 synchronously. After moving to the maximum height, the motor 52 is started to drive the gear 53 to rotate synchronously. Under the action of the half-ring gear rack 54, the lifting frame 6 is overturned to monitor the stretching of the workpiece in real time. The pneumatic sliding block 55 is slidingly installed in the inside of the shaping frame 4. The inside of the shaping frame 4 close to the lifting frame 6 is provided with a semicircular groove for the rotation of the lifting frame 6. After being lifted to the maximum height, the motor 52 drives the gear 53 to rotate synchronously, thereby overturning the lifting frame 6. The lifting and overturning mechanism 5 realizes the overturning of the shaping frame 4. At the same time, through the cooperation between the cylinder 50, the motor 52 and the half-ring gear rack 54, the synchronous overturning of the stretched workpiece is realized. The stretching state of the workpiece bottom and the process are monitored in real time, thereby further improving the processing efficiency of the product stretching process.

[0046] Embodiment Five

[0047] For details, please refer to Figure 1The embodiment is basically same as the embodiment one, the embodiment is made on the basis of the embodiment one, and has the same beneficial effects as the embodiment one, same parts are referred to each other, and details are not described herein again.

[0048] The inner side of the transverse stretching frame 2 is fixedly connected with the telescopic rod 10, the end of the telescopic rod 10 is fixedly connected with the hydraulic rod 3, the hydraulic rod 3 is symmetrically arranged on the front and rear sides of the base 1, the telescopic rod 10 on both sides is driven to slide through the hydraulic rod 3, so that the transverse stretching frame 2 on both sides is away from each other to realize the stretching of the workpiece and close to each other to realize the recovery of the workpiece, and the side of the base 1 is fixedly installed with the controller 8.

[0049] Embodiment six

[0050] Please refer to Figures 3-4 The embodiment is basically same as the embodiment one, the embodiment is made on the basis of the embodiment one, and has the same beneficial effects as the embodiment one, same parts are referred to each other, and details are not described herein again.

[0051] The inner side of the positioning sleeve 92 is provided with the conductive ring 98, the conductive ring 98 is fixedly connected to the inner wall of the movable groove 91, the inner diameter value of the conductive ring 98 is less than the diameter value of the conductive contact piece 71, and the inner wall of the conductive ring 98 is provided with an elastic conductive metal material, so that the conductive ring 98 and the conductive contact piece 71 are in contact while reducing the friction loss between them.

[0052] As a preferred technical solution of the embodiment, the elastic knocking piece 72 and the elastic telescopic sleeve 93 are provided with an elastic wear-resistant material, so that the friction loss in the contact process of the elastic knocking piece 72 and the elastic telescopic sleeve 93 is reduced, the diameter of the elastic knocking piece 72 is less than the inner diameter value of the conductive ring 98, so that the elastic knocking piece 72 does not contact the conductive ring 98 in the sliding process along the inside of the elastic telescopic sleeve 93.

[0053] Embodiment seven

[0054] Please refer to Figure 4 The embodiment is basically same as the embodiment one, the embodiment is made on the basis of the embodiment one, and has the same beneficial effects as the embodiment one, same parts are referred to each other, and details are not described herein again.

[0055] The spacing value of the adjacent positioning sleeves 92 is flexibly adjustable according to the difference of internal stress of different products, and the residual stress of the stretched workpiece is different for different workpieces, for example, the pressure of plastic products and metal products is necessarily different, the spacing of the positioning sleeve 92 is changed according to the different raw materials of the workpiece, so that the vibration amplitude is flexibly adjusted to meet the stretching processing requirements of different workpieces.

[0056] The control mode of the present application is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of those skilled in the art, the power supply also belongs to the common knowledge in the art, and the present application is mainly used for protecting mechanical devices, so the control mode and the circuit connection of the present application will not be explained in detail.

[0057] It should be noted that in this text, the term "including", "containing" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device.

[0058] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the above embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the part of the method embodiments.

[0059] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fully automatic flipping and stretching machine, comprising a base (1), characterized in that: A transverse stretching frame (2) is slidably installed on both the left and right sides of the base (1). A shaping frame (4) is fixedly connected to the inner side of the transverse stretching frame (2). The shaping frame (4) is slidably installed on the base (1) along the transverse direction. A lifting and flipping mechanism (5) is provided on the outer side of the shaping frame (4). A lifting frame (6) is slidably installed on the inner side of the shaping frame (4). A stretching detection mechanism (7) for detecting the stretching amplitude is provided at equal intervals on the bottom inner side of the lifting frame (6). A stress relief mechanism (9) for eliminating the internal stress of the workpiece is provided between the stretching detection mechanisms (7). The tensile testing mechanism (7) includes a transverse positioning rod (70) fixedly connected to the lower end of the side wall of the lifting frame (6). The transverse positioning rod (70) is equidistantly arranged along the front and rear direction of the base (1). An elastic striking element (72) is fixedly connected to the side wall of the transverse positioning rod (70). The elastic striking element (72) is equidistantly arranged along the transverse positioning rod (70). A conductive contact piece (71) is fixedly connected to the outer side of the last elastic striking element (72). The stress relief mechanism (9) includes a vibrating base plate (90) placed transversely between the tensile testing mechanism (7). The vibrating base plate (90) has movable grooves (91) on its left and right side walls. The movable grooves (91) are equidistantly arranged along the front and rear directions of the vibrating base plate (90). The transverse positioning rod (70) is inserted into the interior of the movable groove (91). The inner wall of the movable groove (91) is fixedly connected with a positioning sleeve (92). The positioning sleeve (92) is equidistantly arranged along the inner wall of the movable groove (91). An elastic telescopic sleeve (93) is slidably installed on the inner wall of the positioning sleeve (92). An annular groove (94) is opened on the inner side of the positioning sleeve (92). An electromagnet (95) is fixedly connected to the inner wall of the annular groove (94). The electromagnets (95) are equidistantly arranged along the circumference of the inner wall of the annular groove (94). A limiting cylinder (96) is fixedly connected to the outer side of the elastic telescopic sleeve (93). A permanent magnet positioning block (97) is fixedly connected inside the limiting cylinder (96). The electromagnets (95) can slide relative to each other inside the limiting cylinder (96).

2. The fully automatic flipping and stretching machine according to claim 1, characterized in that: The transverse positioning rods (70) on the left and right sides of the vibration base plate (90) are staggered, and the distance between adjacent transverse positioning rods (70) is twice the distance between movable grooves (91). The positioning sleeves (92) inside adjacent movable grooves (91) are mirror images of each other.

3. The fully automatic flipping and stretching machine according to claim 1, characterized in that: The lifting and flipping mechanism (5) includes a cylinder (50) fixedly connected to the outer wall of the shaping frame (4). A slide rod (51) is slidably installed on the top of the cylinder (50). A motor (52) is fixedly connected to the top of the slide rod (51). A gear (53) is fixedly connected to the output end of the motor (52). A semi-ring rack (54) meshes with the bottom of the gear (53). A pneumatic slider (55) is fixedly connected to the bottom of the semi-ring rack (54).

4. The fully automatic flipping and stretching machine according to claim 3, characterized in that: The pneumatic slider (55) is fixedly connected to the lifting frame (6), and the cylinder (50) is used to drive the pneumatic slider (55) to slide in the vertical direction. The pneumatic slider (55) is slidably installed inside the shaping frame (4) in the vertical direction. The shaping frame (4) has a semi-circular groove for the lifting frame (6) to rotate on the inner side near the lifting frame (6).

5. The fully automatic flipping and stretching machine according to claim 1, characterized in that: The inner side of the transverse tension frame (2) is fixedly connected with a telescopic rod (10), and the end of the telescopic rod (10) is fixedly connected with a hydraulic rod (3). The hydraulic rod (3) is symmetrically arranged on the front and rear sides of the base (1). A controller (8) is fixedly installed on one side of the base (1).

6. The fully automatic flipping and stretching machine according to claim 1, characterized in that: The inner side of each positioning sleeve (92) is provided with a conductive ring (98), and the conductive ring (98) is fixedly connected to the inner wall of the movable groove (91). The inner diameter of the conductive ring (98) is smaller than the diameter of the conductive contact (71).

7. The fully automatic flipping and stretching machine according to claim 1, characterized in that: Both the elastic striking element (72) and the elastic telescopic sleeve (93) are made of elastic wear-resistant material, and the diameter of the elastic striking element (72) is smaller than the inner diameter of the conductive ring (98).

8. The fully automatic flipping and stretching machine according to claim 1, characterized in that: The spacing between adjacent positioning sleeves (92) can be flexibly adjusted according to the internal stress differences of different products.

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