CN222100050U - An automatic device for releasing stress of E-type spring bar - Google Patents

Abstract

The utility model discloses an e-type elastic strip stress release automatic device which comprises an annular walking frame, wherein an elastic strip die travelling mechanism is assembled and connected to the annular walking frame, a plurality of braking mechanisms for braking the elastic strip dies in an operating state are assembled and connected to the annular walking frame, an elastic strip die for discharging the elastic strips is assembled and connected to the elastic strip die travelling mechanism, the elastic strip die comprises a die body, a discharging part for discharging the elastic strips is integrally formed on the die body, a discharging groove is formed in the discharging part, a braking base arranged on an annular walking chain is fixedly connected to the bottom of the die body, and the braking mechanisms are braked into the braking grooves in the braking process. The mode is high in machining efficiency, the grabbing and prepressing integrated operation is carried out in the machining process, and the machining process is simple and easy to operate.

Description

Automatic stress release device for e-shaped elastic strip

Technical Field

The utility model belongs to the technical field of e-shaped elastic strip processing, and particularly relates to an e-shaped elastic strip stress release automatic device.

Background

The e-shaped elastic strip is a mechanical component of a locking mechanism, such as an e-shaped structure, and is mainly used as a connecting piece on a rail. Because of the factors such as the shape of the base and the e-shaped elastic strip, the e-shaped elastic strip has good elastic performance and high connection stability, and therefore, the e-shaped elastic strip can also play a role in buffering in the use process.

The e-shaped elastic strip has excellent performance and is widely applied. Therefore, the improvement of the e-shaped elastic strip production technology is reported in a plurality of publications, such as CN212371577U, which discloses an e-shaped elastic strip preformer. The main body structure comprises a main machine and a feeding mechanism, wherein the main machine comprises a frame, a spring bar pre-pressing mounting plate, an oil cylinder and a pressing head, the spring bar pre-pressing mounting plate is mounted on the frame, a pre-pressing station is arranged between the spring bar pre-pressing mounting plate and a working surface of the frame, the oil cylinder is mounted on the top of the frame, the pressing head is mounted on the oil cylinder and driven by the oil cylinder to press the surface of an e-shaped spring bar by the spring bar pre-pressing mounting plate, the feeding mechanism comprises a movable frame, a spring bar bracket guide rail and a bracket air cylinder, the movable frame can horizontally move, the spring bar bracket guide rail is vertically arranged and mounted on the movable frame, the spring bar bracket is slidably assembled on the spring bar bracket guide rail, the bracket air cylinder is mounted on the movable frame and drives the spring bar bracket, and the spring bar bracket is used for placing the e-shaped spring bar and conveying the e-shaped spring bar to the pre-pressing station. The technical scheme of the patent realizes the prepressing of the e-shaped spring strip.

However, in the actual production and processing process, because of the production process of hot bending and stamping of the elastic strip, structural stress is concentrated, the fluctuation of the elastic strip Cheng Daxiao is large, the buckling pressure is reduced, and even a considerable amount of elastic strip buckling pressure is smaller than the specified requirement, so that serious driving safety hidden trouble is brought.

Therefore, stress can be released in a prepressing mode in the production process, and residual deformation is reduced. However, the pre-pressing mode disclosed in the above patent is not only inefficient, but also requires manual intervention from a series of processing steps such as feeding, positioning, stamping, etc. during the processing.

Therefore, the technical scheme disclosed in the patent is not practical and novel in the actual production process. Therefore, at present, a manual stamping mode is basically adopted, and the elastic strip is extruded to press the toe so as to deform the small circular arc at the heel end, thereby achieving the effect of releasing stress. However, the mode is high in flexibility, but the working efficiency is still low, and the problems that the elastic strip is broken out and hit the fingers, the stamping is not in place, the stress release effect is poor and the like can occur, so that the production efficiency, the safety of workers and the product quality are seriously affected.

Disclosure of utility model

Based on the above background, an object of the present utility model is to provide an e-shaped spring strip stress release automatic device.

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

The e-shaped elastic strip stress release automatic device comprises an annular walking frame, wherein an elastic strip mould walking mechanism is assembled and connected on the annular walking frame, and a plurality of braking mechanisms for braking the elastic strip mould in an operation state are assembled and connected on the annular walking frame;

The elastic strip mould comprises a mould body, wherein a discharging part for discharging the elastic strips is integrally formed on the mould body, and a discharging groove is formed in the discharging part;

the bottom of the die body is fixedly connected with a brake base arranged on the annular travelling chain;

The braking base is provided with a braking groove, and in the braking process, the braking mechanism brakes into the braking groove;

The e-shaped elastic strip stress release automatic device further comprises a prepressing mechanism for stamping the elastic strip, and the e-shaped elastic strip stress release automatic device further comprises a locking mechanism for locking the elastic strip before the elastic strip is stamped.

Preferably, the e-shaped elastic strip stress release automatic device comprises a workbench, wherein the annular walking frame is fixedly assembled at the top position of the workbench;

The elastic strip die traveling mechanism comprises an annular traveling chain which is assembled and connected in the annular traveling frame, and a plurality of driving chain wheels which are meshed with the annular traveling chain;

The driving sprocket is assembled and connected with a driving motor.

Preferably, the braking mechanism comprises a rotating shaft, two ends of the rotating shaft are rotatably connected with shaft mounting frames, and the shaft mounting frames are fixedly assembled on the annular walking frame;

the rotating shaft is fixedly connected with a plurality of braking tongue plates.

Preferably, a braking column head is fixedly connected to the braking tongue plate;

the brake post is braked in a brake groove on the brake base.

Preferably, the braking mechanism further comprises a braking cylinder, a crank seat is fixedly connected to a piston rod of the braking cylinder, a driving handle is hinged to the crank seat, and the driving handle is fixedly assembled on the rotating shaft;

In the braking process, the braking cylinder pushes the crank seat, and the crank seat pushes the rotating shaft to rotate until the braking column head on the braking tongue plate is clamped in the braking groove.

Preferably, the pre-pressing mechanism comprises an electric cylinder fixedly assembled at the top of the workbench, and the electric cylinder is assembled and connected with an electric cylinder pressure head;

the pre-pressing mechanism further comprises a stamping die, the stamping die comprises a die frame body, and two symmetrically arranged limiting plates are fixedly connected in the die frame body;

the electric cylinder pressure head is connected with the limit plate in a sliding way at one side;

The material loading mould is assembled and connected between the limiting plates, and when the material grabbing manipulator grabs materials, the elastic strips are discharged in the material loading mould, and the electric cylinder pressure heads are stamped on the elastic strips.

Preferably, the bottom of the material carrying mould is fixedly assembled and connected with a bottom mounting foot plate, and the bottom mounting foot plate is fixedly assembled at the bottom of the limiting plate.

Preferably, the material carrying mould is provided with a material discharging through hole;

The bottom fixed mounting of end installation sole is connected with the row material subassembly, the row material subassembly includes row material cylinder, and the row material in-process, the piston rod of row material cylinder is ejected into in the blowing through-hole, ejecting bullet strip upwards.

Preferably, the locking mechanism comprises a locking rotating shaft, a lock tongue plate is fixedly connected to the locking rotating shaft, and a contact pressure head for contacting and pressing a locking spring strip is fixedly connected to the lock tongue plate;

the two ends of the locking rotating shaft are respectively and rotatably connected with a fixed mounting frame, and the fixed mounting frames are fixedly assembled on the die frame body;

the bottom of the locking rotating shaft is fixedly assembled and connected with a rotary cylinder.

Preferably, a bracket base is mounted at the bottom of the workbench.

Preferably, an L-shaped connecting rod with a return function is arranged on the electric cylinder pressure head, and in the working process, the spring stroke is measurable by matching with a sensor. The method comprises the specific process that when the pre-pressing is finished and the electric cylinder pressure head is reset, the recoverable L-shaped connecting rod at the front part of the electric cylinder pressure head is used as a starting point, and the distance between the recoverable L-shaped connecting rod and the starting point of the electric cylinder pressure head is used as the spring strip spring stroke.

The utility model has the following beneficial effects:

1. In the mechanical structure disclosed by the utility model, the processing smoothness is improved by installing the elastic strip die on the elastic strip die travelling mechanism, the elastic strip is discharged on the elastic strip die travelling mechanism, the feeding, stamping and discharging speeds of the elastic strip are high, and the processing efficiency is very high. Meanwhile, the appearance structure of the equipment is more compact, and the occupied space is greatly reduced.

2. The brake mechanism comprises a rotating shaft, and a plurality of brake tongue plates fixedly connected to the rotating shaft, wherein brake column heads are fixedly connected to the brake tongue plates. Correspondingly, the elastic strip grinding tool is provided with a braking base, and a braking groove is formed in the braking base in a matched mode.

In the braking process, the braking cylinder pushes the crank seat, and the crank seat pushes the rotating shaft to rotate until the braking column head on the braking tongue plate is clamped in the braking groove, so that the elastic strip die is braked. After braking, the mechanical gripper grabs the elastic strip. By the mode, after the elastic strip moves to the material grabbing position, the die is braked, so that the mechanical arm can grab materials stably, and the material clamping precision of the mechanical claw is guaranteed.

3. Through pre-compaction mechanism, specifically adopt stamping die, electric jar pressure head, electric jar, carry structure such as material mould, realize grabbing the material manipulator and grab the material back with the bullet strip blowing in carrying the material mould, the electric jar pressure head is stamped on the bullet strip, realizes eliminating bullet strip stress.

4. Through locking mechanical system, specifically adopt including locking pivot, fixedly connected with spring bolt board in the locking pivot, fixedly connected with presses the pressure head of touching the locking bullet strip, revolving cylinder on the spring bolt board, when realizing pressing the location bullet strip, open revolving cylinder and select the pressure head of touching to the cylindricality structure to press on the work piece under revolving cylinder's drive locking pivot, realize carrying out steady punching press with the work piece locking after.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a traveling mechanism of a spring strip die in an embodiment of the utility model;

FIG. 3 is a schematic view of a strip ejection die according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a brake mechanism according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a pre-pressing mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of the structure of a cylinder head according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a loading mold according to an embodiment of the present utility model;

FIG. 8 is a top view of the embodiment of the present utility model shown in FIG. 1;

Fig. 9 is a schematic structural view of an L-shaped link mounted on a cylinder ram in an embodiment of the invention.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present utility model) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Example 1

As shown in fig. 1-8, an e-shaped elastic strip stress release automatic device comprises an annular walking frame 7 (specifically, the e-shaped elastic strip stress release automatic device comprises a workbench 1 (an upper bracket base is fixedly welded at the bottom of the workbench 1), and the annular walking frame 7 is fixedly assembled at the top position of the workbench 1).

The annular traveling frame 7 is assembled and connected with an elastic strip mold traveling mechanism 2, wherein the elastic strip mold traveling mechanism 2 is a conventional chain transmission machine disclosed in the prior art, and the main structure of the elastic strip mold traveling mechanism comprises an annular traveling chain 22 which is installed on the annular traveling frame 7 in the same installation mode as the prior art, and four driving chain wheels 21 which are distributed in four corners and meshed with the annular traveling chain 22. The driving sprocket 21 is mounted on the workbench 1 in a rotary connection manner, and the driving sprocket 21 at one part is driven by a driving motor 23 (the driving motor 23 is a servo motor).

In the working process, the annular traveling chain 22 is driven by the driving motor to perform annular motion on the annular traveling frame 7 (the elastic strip die traveling mechanism 2 is a conventional chain transmission machine disclosed in the prior art, and a person skilled in the art can refer to a technical manual or a dictionary or the specific structure, the mounting mode and the working principle process of the elastic strip die traveling mechanism 2 disclosed by the utility model).

In order to realize high-efficiency processing of the elastic strip, the elastic strip die travelling mechanism 2 is provided with the elastic strip dies 3 for discharging the elastic strip, wherein the installation mode of the elastic strip dies 3 on the elastic strip die 3 travelling mechanism 2 is a conventional installation mode chain transmission mechanical installation die mode disclosed in the prior art.

Specifically, the elastic strip mold 3 includes a mold body 31, a discharging part 32 for discharging the elastic strips is integrally formed on the mold body 31, and a discharging groove is formed in the discharging part 32 (in the working process, the elastic strips are discharged on each mold body 31 one by one and travel to the stamping position along with the traveling mechanism 2 of the elastic strip mold 3).

When the elastic strip on the die body 31 walks to the stamping position, in order to lock the die body 31, the material grabbing manipulator is convenient to grab the material (the blanking process), and a brake base 33 (meanwhile, a brake groove 331 is formed in the brake base 33) mounted on the annular walking chain 22 is fixedly connected to the bottom of the die body 31.

Correspondingly, the annular walking frame 7 is provided with a plurality of braking mechanisms 4 for braking the elastic strip die 3 in the running state.

The specific braking principle and the braking structure are as follows:

The braking mechanism 4 comprises a rotating shaft 42, and shaft mounting frames are rotatably connected to two ends of the rotating shaft 42 and fixedly assembled on the annular walking frame 7.

Meanwhile, a plurality of braking tongues 41 are fixedly connected to the rotating shaft 42, and braking column heads 43 are fixedly connected to the braking tongues 41. The brake post 43 engages and brakes in a brake slot 331 in the brake base 33.

The specific braking principle structure is that the braking mechanism 4 further comprises a braking air cylinder 44 (a cylinder barrel of the braking air cylinder 44 is connected to the bottom of the workbench 1 in a conventional mode), a crank seat 451 is fixedly connected to a piston rod of the braking air cylinder 44, and a driving handle 45 is hinged to the crank seat 451 (the crank seat is hinged to the lower end position of the driving handle 45 through a fixed pin). Meanwhile, the driving handle 45 is fixedly assembled to the rotation shaft 42.

In the braking process, the braking cylinder 44 pushes the crank seat, and the crank seat pushes the rotating shaft 42 to rotate until the braking column head 43 on the braking tongue plate 41 is clamped in the braking groove 331, so that the elastic strip die 3 is braked. After braking, the mechanical gripper grabs the elastic strip.

Example 2

As shown in fig. 1-8, the e-type elastic strip stress release automatic device further comprises a pre-pressing mechanism 5 for punching the elastic strip on the basis of the structure of embodiment 1, and after the mechanical gripper grabs the elastic strip, the elastic strip is fed into the pre-pressing mechanism 5 for punching, and stress relief of the elastic strip is realized by the elastic strip buckling toe deformation of the punched elastic strip.

Specifically, the pre-pressing mechanism 5 includes an electric cylinder 51 fixedly fitted at the top position of the table 1, and the electric cylinder 51 is fitted with a cylinder head 54.

The pre-pressing mechanism 5 further comprises a stamping die 52, the stamping die 52 comprises a die frame body, two symmetrically arranged limiting plates 521 are fixedly connected in the die frame body, and a certain gap is kept between the limiting plates 521. The cylinder ram 54 is slidably connected to the rear side portion of the limiting plate 521 (corresponding to the through hole structure formed in the limiting plate 521, specifically, the punch portion 541 of the cylinder ram 54 slides and penetrates through the through hole structure formed in the limiting plate 521 during the punching process).

Meanwhile, a material carrying mold 53 is assembled and connected between the limiting plates 521, and after the material grabbing mechanical arm grabs materials, the elastic strips are discharged in the material carrying mold 53 (specifically, a material discharging through hole is formed in the material carrying mold 53, and the elastic strips are discharged in the material discharging through hole). The cylinder ram 54 is stamped onto the spring strip. Specifically, the bottom of the material loading mold 53 is fixedly assembled with a bottom mounting foot plate, which is fixedly assembled at the bottom of the limiting plate 521.

Wherein, above-mentioned manipulator is the material arm of grabbing that conventional use in the bullet strip production process.

In the working process, after the elastic strip die 3 is braked and stopped by the braking mechanism 4, the elastic strip is grabbed onto the pre-pressing mechanism 5 by the grabbing manipulator (specifically, the manipulator actively clamps the middle limb of the elastic strip and lifts the elastic strip), and then after the elastic strip is locked by the locking mechanism, the pressing toe of the elastic strip is pressed and deformed by the pre-pressing mechanism 5 under the pressing condition, so that the stress of the elastic strip is eliminated.

Specifically, during the punching process, the cylinder 51 drives the cylinder ram 54 to penetrate through the limiting plate 521 at the rear side portion, and at this time, the spring bar is fixedly abutted against the carrier mold 53, so that the punching is performed immediately.

Specifically, the stamping mode is that the electric cylinder pressure head 54 moves forwards to a contact position with the elastic strip buckling surface under the control of the PLC, then butts against the elastic strip buckling toe to a set distance, and is actively reset after being kept for 2 seconds.

Example 3

As shown in fig. 1 to 8, the embodiment is based on the structure of embodiment 2, and before the spring strip is punched, the spring strip needs to be locked, so that the punching stability is increased, and the embodiment is realized by the following structure.

The e-type elastic strip stress release automatic device further comprises a locking mechanism 6 for locking the elastic strip before the elastic strip is punched, specifically, the locking mechanism 6 comprises a locking rotating shaft 61, a lock tongue plate 62 is fixedly connected to the locking rotating shaft 61, a touch head 621 for touching and pressing the locking elastic strip is fixedly connected to the lock tongue plate 62, two ends of the locking rotating shaft 61 are respectively and rotatably connected with a fixed mounting frame 611, and the fixed mounting frame 611 is fixedly assembled on a die frame body (a specific position is located on the front side wall of the die frame body) of the elastic strip die 52.

Similarly, according to the conventional manner, a rotary cylinder (not shown) is fixedly assembled and connected to the bottom of the locking shaft 61 (the workpiece is pressed by the rotary cylinder in the conventional manner of using the rotary cylinder in the prior art, and specifically, the piston shaft of the rotary cylinder is fixedly mounted on the locking shaft 61 in the same manner as the conventional manner).

When the positioning elastic strip is pressed, the rotary cylinder is opened, and the locking rotating shaft 61 is driven by the rotary cylinder to select the contact pressure head 621 of the cylindrical structure to press on the workpiece, so that the workpiece is locked. Stamping after locking.

Example 4

As shown in fig. 1-8, in this embodiment, on the basis of the structure of embodiment 3, after the punching of the spring strip is completed, in order to facilitate discharging, a discharging structure is disposed at the bottom of the material carrying mold 53, so as to remove the spring strip and facilitate re-feeding processing.

Specifically, the bottom of the loading mold 53 is fixedly connected to the bottom mounting foot plate 5211, and a discharge assembly is fixedly assembled and connected to the bottom of the bottom mounting foot plate 5211 according to the conventional cylinder discharge method. The discharging assembly comprises a discharging cylinder (not shown in the figure), and in the discharging process, a piston rod of the discharging cylinder is ejected into a discharging through hole of the material carrying die 53, and an elastic strip is ejected upwards. After processing, when the piston rod of the discharging cylinder is ejected into the discharging through hole of the material carrying mold 53, at this time, the elastic strip is ejected out.

Example 5

As shown in fig. 1 to 9, in this embodiment, based on the structure of embodiment 2, when the cylinder ram 54 moves forward under the PLC control to a contact position with the spring strip pressing surface, the toe is pressed against the spring strip to a set distance, and the spring strip is actively reset after being held for 2 s.

In the actual working process, in order to realize measuring and calculating the spring path, the measuring and calculating method is the same as the conventional measuring method of a sensor, an L-shaped connecting rod 55 with a return function is arranged on the electric cylinder pressure head 54 (specifically, a spring is arranged in the electric cylinder pressure head 54 in the same manner as the conventional elastic return method, and the inner end of the L-shaped connecting rod 55 is fixed on the spring) and is matched with the sensor to realize the measuring and calculating of the spring path. The specific process is that when the pre-pressing is finished and the cylinder pressure head 54 is reset, the recoverable L-shaped connecting rod 55 at the front part of the cylinder pressure head 54 takes no longer contact with the spring strip as a starting point, and the distance between the recoverable L-shaped connecting rod and the starting point of the cylinder pressure head 54 is the spring strip spring stroke. The adoption of the L-shaped connecting rod 55 to touch and press the spring strip and the measurement of the spring strip stroke by the sensor is a conventional sensor ranging mode disclosed in the prior art (a person skilled in the art can consult a technical manual or dictionary or the utility model discloses how the L-shaped connecting rod 55 is matched with a distance sensor and has a working principle and a specific structure for measuring and calculating the spring strip stroke).

It should be understood that the above description is not intended to limit the utility model to the particular embodiments disclosed, but to limit the utility model to the particular embodiments disclosed, and that the utility model is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the utility model.

Claims (10)

1. The e-shaped elastic strip stress release automatic device is characterized by comprising an annular walking frame, wherein an elastic strip mould walking mechanism is assembled and connected on the annular walking frame;

The elastic strip mould comprises a mould body, wherein a discharging part for discharging the elastic strips is integrally formed on the mould body, and a discharging groove is formed in the discharging part;

The bottom of the die body is fixedly connected with a brake base arranged on the annular travelling chain, a brake groove is formed in the brake base, and in the braking process, a brake mechanism brakes into the brake groove;

The e-shaped elastic strip stress release automatic device further comprises a prepressing mechanism for stamping the elastic strip, and the e-shaped elastic strip stress release automatic device further comprises a locking mechanism for locking the elastic strip before the elastic strip is stamped.

2. The e-bar stress relief robot of claim 1, comprising a table, the endless traveling gantry being fixedly mounted in a top position of the table;

The elastic strip die traveling mechanism comprises an annular traveling chain which is assembled and connected in the annular traveling frame, and a plurality of driving chain wheels which are meshed with the annular traveling chain;

The driving sprocket is assembled and connected with a driving motor.

3. The e-type spring strip stress relief automatic device according to claim 1, wherein the brake mechanism comprises a rotating shaft, two ends of the rotating shaft are rotatably connected with shaft mounting frames, and the shaft mounting frames are fixedly assembled on the annular walking frame;

the rotating shaft is fixedly connected with a plurality of braking tongue plates.

4. The e-spring strip stress relief automatic device according to claim 3, wherein a brake column head is fixedly connected to said brake tongue plate;

the brake post is braked in a brake groove on the brake base.

5. The automatic stress relief device for e-type elastic strip according to claim 4, wherein the brake mechanism further comprises a brake cylinder, a crank seat is fixedly connected to a piston rod of the brake cylinder, a driving handle is hinged to the crank seat, and the driving handle is fixedly assembled on the rotating shaft;

In the braking process, the braking cylinder pushes the crank seat, and the crank seat pushes the rotating shaft to rotate until the braking column head on the braking tongue plate is clamped in the braking groove.

6. The automatic stress relief device for e-spring bars according to claim 2, wherein the pre-pressing mechanism comprises an electric cylinder fixedly assembled at the top of the workbench, and an electric cylinder pressure head is assembled and connected with the electric cylinder;

the pre-pressing mechanism further comprises a stamping die, the stamping die comprises a die frame body, and two symmetrically arranged limiting plates are fixedly connected in the die frame body;

the electric cylinder pressure head is connected with the limit plate in a sliding way at one side;

The material loading mould is assembled and connected between the limiting plates, and when the material grabbing manipulator grabs materials, the elastic strips are discharged in the material loading mould, and the electric cylinder pressure heads are stamped on the elastic strips.

7. The automatic stress relief device for e-shaped spring strips according to claim 6, wherein a bottom mounting foot plate is fixedly assembled at the bottom of the material carrying mold, and the bottom mounting foot plate is fixedly assembled at the bottom of the limiting plate.

8. The automatic stress relief device for e-shaped elastic bars according to claim 7, wherein the material carrying mold is provided with a material discharging through hole;

The bottom fixed mounting of end installation sole is connected with the row material subassembly, the row material subassembly includes row material cylinder, and the row material in-process, the piston rod of row material cylinder is ejected into in the blowing through-hole, ejecting bullet strip upwards.

9. The automatic stress relief device for an e-type spring strip according to claim 6, wherein the locking mechanism comprises a locking rotating shaft, a lock tongue plate is fixedly connected to the locking rotating shaft, and a pressing head for pressing the locking spring strip is fixedly connected to the lock tongue plate;

the two ends of the locking rotating shaft are respectively and rotatably connected with a fixed mounting frame, and the fixed mounting frames are fixedly assembled on the die frame body;

the bottom of the locking rotating shaft is fixedly assembled and connected with a rotary cylinder.

10. The automated e-bar stress relief device of claim 2, wherein a bracket base is mounted to the bottom of the table.