CN216857934U - A hot straightener piercing press for leaf spring quenching line - Google Patents

Abstract

The utility model discloses a hot straightening machine punching machine for a plate spring quenching line, which relates to the technical field of plate spring processing and comprises the following steps: installation under casing, mount, mounting panel and electric telescopic handle, mount fixed connection is in the rear side at installation under casing top, mounting panel fixed connection is at the top of mount front side, electric telescopic handle fixed connection is at the top of mounting panel. According to the plate spring punching device, the problem that deviation is easily generated in plate spring punching due to the fact that most of the existing plate spring punching devices are not provided with accurate positioning structures is solved through the cooperation of the accurate positioning mechanisms and the blanking mechanisms, the effect of quickly and accurately positioning the plate spring assemblies is achieved, meanwhile, the problems that manual material taking is time-consuming and labor-consuming and certain danger is caused due to the fact that most of the existing plate spring punching devices are not provided with automatic blanking structures are solved, and the effect of stably and continuously blanking the plate spring assemblies which are punched is achieved.

Description

A hot straightener piercing press for leaf spring quenching line

Technical Field

The utility model relates to the technical field of plate spring processing, in particular to a hot straightening machine punching machine for a plate spring quenching line.

Background

The steel plate spring is an elastic element which is most widely applied in automobile suspensions, and is an elastic beam which is approximately equal in strength and formed by combining a plurality of alloy spring pieces which are equal in width but unequal in length.

Profiling and punching the spring leaf of the steel plate spring; in the prior art, the pressing and punching are divided into two processes, and usually, a pressing device is used to press a concave part on a spring sheet, and then the spring sheet is transferred to a punching machine, and punching is performed at the center of the concave part. The method has the defects of complex process and low processing efficiency, the workpiece needs to be clamped on the profiling device and the punching machine respectively, positioning needs to be carried out twice, the positioning precision is low, and the final precision of the workpiece is influenced.

The prior patent (publication number: CN205362377U) discloses a leaf spring profiling punching machine, which can be used for placing a spring piece on two torsion plates, performing primary clamping and positioning through a longitudinal positioning device and a transverse positioning device, reserving a micro gap at the moment, starting an air cylinder, and performing final clamping and positioning through the torsion positioning device; after clamping and positioning are finished, starting a first oil cylinder to enable a movable support to descend, closing a profiling upper die at the bottom of the movable support and a pressing box lower die on a machine body base, and profiling a spring piece; then starting a second oil cylinder to enable a punch in the profiling upper die to descend so as to punch the spring piece; after punching, the second oil cylinder drives the punch to return, and meanwhile, the first oil cylinder drives the movable support to return and return materials to complete a work flow.

However, the leaf spring profiling punch designed above has some disadvantages in practical application: the leaf spring punching machine designed as above is not provided with a precise punching structure, since the leaf spring is generally required to be punched at a position of a central point thereof, therefore, if the precise punching structure is not arranged, the punching position can be influenced, and the problem of difficult later assembly is likely to be caused, thereby reducing the punching quality of the plate spring punching machine, and the plate spring punching machine is not provided with a blanking structure, after the plate spring punching machine with the design punches the plate spring, the punched plate spring needs to return to an initial position, then the material is manually taken down, the process of manually taking the material not only wastes time and labor, but also can cause the abnormal operation of the machine due to the error operation of staff, therefore, certain dangers exist, and for this reason, a hot straightening machine punching machine for a plate spring quenching line is designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a punching machine of a hot straightening machine for a plate spring quenching line, which solves the problem that the plate spring punching is easy to generate deviation because most of the existing plate spring punching devices are not provided with an accurate positioning structure, realizes the effect of quickly and accurately positioning a plate spring assembly, simultaneously solves the problems that manual material taking is time-consuming and labor-consuming and has certain danger because most of the existing plate spring punching devices are not provided with an automatic blanking structure, and realizes the effect of stably and continuously blanking the plate spring assembly subjected to hole punching.

In order to solve the technical problem, the utility model provides a hot straightening machine punching machine for a plate spring quenching line, which comprises: installation under casing, mount, mounting panel and electric telescopic handle, mount fixed connection is at the rear side at installation under casing top, mounting panel fixed connection is at the top of mount front side, first electric telescopic handle fixed connection is at the top of mounting panel, just first electric telescopic handle's drive end runs through mounting panel and fixedly connected with punching head, the punching head is located the top of installation under casing, the top of installation under casing is provided with accurate positioning mechanism, the inside of installation under casing is provided with the installation cavity, be provided with unloading mechanism in the installation cavity.

Preferably, the precise positioning mechanism comprises four rotating shafts, two limiting plates, four rotating rollers and two driving motors, the four rotating shafts are respectively and symmetrically connected to the front side of the fixing frame in a rotating manner, the two limiting plates are symmetrically arranged at the top of the installation bottom box, the other end of each rotating shaft is rotatably connected to the rear side of the limiting plate, the four rotating rollers are respectively and fixedly sleeved on the four rotating shafts, the two rotating rollers arranged on the rear side of each limiting plate are positioned on the same vertical line, a gap is reserved between the two rotating rollers, the two driving motors are respectively and fixedly connected to the front sides of the two limiting plates, the driving shaft of each driving motor is respectively in transmission connection with one rotating shaft on each side, displacement sensors are fixedly connected to both sides of the installation plate and positioned above the installation bottom box, put into the clearance of leftmost both sides live-rollers through the leaf spring subassembly that will punch a hole, then open two driving motor simultaneously, make the axis of rotation drive the live-rollers and rotate, make the leaf spring subassembly horizontal migration that needs punch a hole, one of them displacement sensor detects leaf spring subassembly's one end afterwards, make leaf spring subassembly continue to move, detect leaf spring subassembly until another displacement sensor, the position that the head of punching a hole just is located leaf spring subassembly center this moment, can punch a hole, it does not set up accurate location structure because of most to have solved current leaf spring punching device, lead to the leaf spring to punch a hole and produce the problem of deviation easily, quick and accurate effect of fixing a position to leaf spring subassembly has been realized.

Preferably, the blanking mechanism comprises two limiting ports, two threaded screw rods, two nuts, two servo motors, two supporting columns, two supporting plates, two limiting grooves, two rollers and two second electric telescopic rods, the two limiting ports are symmetrically arranged at the top of the installation bottom box and communicated with the installation cavity, the two threaded screw rods are respectively in threaded connection with the two installation cavities, the two nuts are respectively in threaded connection with the two threaded screw rods, two cavities are symmetrically arranged in the installation bottom box, the two servo motors are respectively and fixedly connected in the two cavities, a driving shaft of each servo motor is in transmission connection with one end of each threaded screw rod, the two supporting columns are respectively and fixedly connected at the tops of the two nuts, the supporting columns are in sliding connection with the limiting ports, the two supporting plates are respectively and movably connected at the tops of the two supporting columns in a sleeved manner, two the spacing groove symmetry is seted up in the installation under casing, just spacing groove link up, two with installation cavity and spacing mouth homogeneous phase the gyro wheel is roll connection respectively at two spacing inslots, the outside of gyro wheel is provided with the locating rack, the bottom fixed connection of locating rack and nut, two second electric telescopic handle is fixed connection respectively in one side that two backup pads were carried on the back mutually, just backup pad and fixedly connected with clamp plate are run through to second electric telescopic handle's drive end, the inclined plane has been seted up to one side at installation under casing top, the inclination on inclined plane is 45.

Preferably, the top of inclined plane symmetry fixedly connected with two baffles, the bottom of backup pad is seted up threaded hole, the top of support column is provided with the screw thread, the top screw thread of support column is pegged graft at threaded hole, rotates the backup pad, can make the backup pad screw off from the top of support column, can conveniently change or maintain the backup pad.

Preferably, two support posts are symmetrically and fixedly connected to the top of the bottom box, a support plate is fixedly connected to the top of each support post, the height of each support plate is equal to the lowest position of the gap between the two rotating rollers, and the support plates can be used for relieving the pressure of the plate spring assembly on the rotating rollers, so that the service life of the rotating rollers is prolonged.

Preferably, the top of the installation bottom box is symmetrically and rotatably connected with two limiting wheels, so that the problem that the punched plate spring assembly is deviated in the process of sliding down to the top of the installation bottom box is solved.

Preferably, the front side of installation under casing is provided with the control panel, the equal electric connection of control panel and first electric telescopic handle, driving motor, servo motor and second electric telescopic handle helps personnel to control first electric telescopic handle, driving motor, servo motor and second electric telescopic handle.

Preferably, the four corners of the bottom of the installation bottom box are fixedly connected with supporting legs.

Compared with the related art, the hot straightening machine punching machine for the plate spring quenching line has the following beneficial effects:

1. according to the utility model, the plate spring assembly needing to be punched is placed in the gap between the rotating rollers on the two leftmost sides, then the two driving motors are simultaneously started, the rotating shaft drives the rotating rollers to rotate, so that the plate spring assembly needing to be punched horizontally moves, then one of the displacement sensors detects one end of the plate spring assembly, the plate spring assembly continuously moves until the other displacement sensor detects the plate spring assembly, and at the moment, the punching head is just positioned at the center of the plate spring assembly, so that punching can be carried out.

2. In the utility model, the leaf spring assembly is continuously driven after the punching of the leaf spring assembly is finished until the leaf spring assembly is completely separated from the rotating roller and falls on the top of the installation bottom box, then the second electric telescopic rod is opened, the driving end of the second electric telescopic rod extends to drive the clamping plate to clamp the plate spring assembly, then the servo motor is started to rotate the threaded screw rod, make the nut drive support column and backup pad along the direction horizontal migration of installation cavity, this in-process gyro wheel is followed in second electric telescopic handle and rolls, move the end of installation under casing until the backup pad, loosen leaf spring assembly, leaf spring assembly can slide appointed receipts material position along the inclined plane this moment, current leaf spring punching device has been solved because of mostly not setting up automatic blanking structure, lead to artifical manual getting to waste time and energy and have certain dangerous problem, the effect of unloading is carried out to the leaf spring assembly that the counter-punching was accomplished that has realized stably and last.

Drawings

FIG. 1 is a schematic perspective view of the exterior of a hot straightener punch for a plate spring quench line;

FIG. 2 is a schematic view of the internal structure of a mounting cavity of a hot straightener puncher for a plate spring quenching line;

FIG. 3 is an enlarged view taken at A in FIG. 1;

fig. 4 is an enlarged view at B in fig. 2.

Reference numbers in the figures: 1. installing a bottom box; 2. a fixed mount; 3. mounting a plate; 4. a first electric telescopic rod; 5. a punching head; 6. a rotating shaft; 7. a limiting plate; 8. a rotating roller; 9. a drive motor; 10. a limiting port; 11. a threaded lead screw; 12. a nut; 13. a servo motor; 14. a support column; 15. a support plate; 16. a limiting groove; 17. a roller; 18. a second electric telescopic rod; 19. a clamping plate; 20. an inclined surface; 21. and a displacement sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First embodiment, given in fig. 1 to 4, a hot straightener punch for a plate spring quenching line, comprises: the mounting bottom box comprises a mounting bottom box 1, a fixing frame 2, a mounting plate 3 and a first electric telescopic rod 4, wherein the fixing frame 2 is fixedly connected to the rear side of the top of the mounting bottom box 1, the mounting plate 3 is fixedly connected to the top of the front side of the fixing frame 2, the first electric telescopic rod 4 is fixedly connected to the top of the mounting plate 3, the driving end of the first electric telescopic rod 4 penetrates through the mounting plate 3 and is fixedly connected with a punching head 5, the punching head 5 is located at the top of the mounting bottom box 1, the top of the mounting bottom box 1 is provided with an accurate positioning mechanism, a mounting cavity is arranged inside the mounting bottom box 1, and a blanking mechanism is arranged in the mounting cavity;

the precise positioning mechanism comprises four rotating shafts 6, two limiting plates 7, four rotating rollers 8 and two driving motors 9, wherein the four rotating shafts 6 are respectively and symmetrically connected to the front side of the fixing frame 2 in a rotating manner, the two limiting plates 7 are symmetrically arranged at the top of the installation bottom box 1, the other ends of the rotating shafts 6 are rotatably connected to the rear sides of the limiting plates 7, the four rotating rollers 8 are respectively and fixedly sleeved on the four rotating shafts 6, the two rotating rollers 8 arranged on the rear side of each limiting plate 7 are positioned on the same vertical line, a gap is reserved between the two rotating rollers 8, the two driving motors 9 are respectively and fixedly connected to the front sides of the two limiting plates 7, the driving shaft of each driving motor 9 is respectively in transmission connection with one rotating shaft 6 on each side, the two sides of the installation plate 3 are respectively and fixedly connected with displacement sensors 21, and the displacement sensors 21 are positioned above the installation bottom box 1, firstly, a plate spring component needing punching is placed in a gap between rotating rollers 8 at the two leftmost sides, then two driving motors 9 are simultaneously started to enable a rotating shaft 6 to drive the rotating rollers 8 to rotate, make the leaf spring subassembly horizontal migration that needs punch a hole, one of them displacement sensor 21 detects leaf spring subassembly's one end afterwards, make leaf spring subassembly continue to move, detect leaf spring subassembly until another displacement sensor 21, punch a hole head 5 this moment and lie in the position at leaf spring subassembly center just, open first electric telescopic handle 4 at last, the drive end extension that makes first electric telescopic handle 4 drives 5 vertical downstream of punching a hole head and punch a hole to leaf spring subassembly can, it because of most not setting up accurate location structure to have solved current leaf spring punching device, lead to the leaf spring to punch a hole and produce the problem of deviation easily, quick and accurate effect of fixing a position to leaf spring subassembly has been realized.

In the second embodiment, on the basis of the first embodiment, the blanking mechanism comprises two limiting ports 10, two threaded lead screws 11, two nuts 12, two servo motors 13, two support columns 14, two support plates 15, two limiting grooves 16, two rollers 17 and two second electric telescopic rods 18, wherein the two limiting ports 10 are symmetrically arranged at the top of the installation bottom box 1, the limiting ports 10 are communicated with the installation cavity, the two threaded lead screws 11 are respectively in threaded connection with the two installation cavities, the two nuts 12 are respectively in threaded sleeve connection with the two threaded lead screws 11, two cavities are symmetrically arranged inside the installation bottom box 1, the two servo motors 13 are respectively and fixedly connected with the two cavities, a driving shaft of each servo motor 13 is in transmission connection with one end of each threaded lead screw 11, the two support columns 14 are respectively and fixedly connected with the top of the two nuts 12, and the support columns 14 are in the limiting ports 10 in a sliding connection manner, two supporting plates 15 are respectively movably sleeved at the tops of two supporting columns 14, two limiting grooves 16 are symmetrically arranged in the installation bottom box 1, the limiting grooves 16 are communicated with the installation cavity and the limiting port 10, two rollers 17 are respectively connected in the two limiting grooves 16 in a rolling manner, a positioning frame is arranged on the outer side of each roller 17 and fixedly connected with the bottom of a nut 12, two second electric telescopic rods 18 are respectively and fixedly connected with one sides of the two supporting plates 15 opposite to each other, the driving ends of the second electric telescopic rods 18 penetrate through the supporting plates 15 and are fixedly connected with clamping plates 19, an inclined surface 20 is arranged on one side of the top of the installation bottom box 1, the inclined angle of the inclined surface 20 is 45 degrees, when the plate spring component is punched, the plate spring component is continuously driven until the plate spring component is separated from the rotating roller 8 and falls on the top of the installation bottom box 1, and then the second electric telescopic rods 18 are opened, make the drive end extension of second electric telescopic handle 18 drive clamp plate 19 and press from both sides the leaf spring subassembly tight, open servo motor 13 afterwards, make screw lead screw 11 rotate, make nut 12 drive support column 14 and backup pad 15 along the direction horizontal migration of installation cavity, this in-process gyro wheel 17 is followed in second electric telescopic handle 18 and rolls, move the end of installation under casing 1 until backup pad 15, loosen the leaf spring subassembly, the leaf spring subassembly can slide to appointed receipts material position along inclined plane 20 this moment, solved current leaf spring punching device because of mostly not setting up automatic blanking structure, lead to artifical manual material of getting to waste time and energy and have certain dangerous problem, the effect that stable and continuous leaf spring subassembly that the counterboring was accomplished carries out the unloading has been realized.

In the third embodiment, on the basis of the first embodiment, the two baffle plates are symmetrically and fixedly connected to the top of the inclined surface 20, the bottom of the supporting plate 15 is provided with a threaded hole, the top end of the supporting column 14 is provided with a thread, the top end of the supporting column 14 is inserted into the threaded hole in a threaded manner, the supporting plate 15 is rotated, the supporting plate 15 can be screwed down from the top end of the supporting column 14, and the supporting plate 15 can be conveniently replaced or maintained.

Fourth embodiment, on the basis of first embodiment, two support posts of the symmetry fixedly connected with in the top of installation under casing 1, the top fixedly connected with layer board of support post, the height of layer board equals with the minimum in the clearance between two live rollers 8, can be used to alleviate leaf spring assembly to live roller 8's pressure to help prolonging live roller 8's life.

Fifth, on the basis of the first embodiment, the top of the installation bottom case 1 is symmetrically and rotatably connected with two limiting wheels, so that the problem that the punched plate spring assembly is deviated in the process of sliding on the top of the installation bottom case 1 is solved.

Sixth embodiment, on the basis of first embodiment, the front side of installation under casing 1 is provided with the control panel, and the control panel is all electric connection with first electric telescopic handle 4, driving motor 9, servo motor 13 and second electric telescopic handle 18, helps personnel to control first electric telescopic handle 4, driving motor 9, servo motor 13 and second electric telescopic handle 18.

Seventhly, on the basis of the first embodiment, four corners of the bottom box 1 are fixedly connected with supporting legs.

The working principle is as follows:

when needing to punch a hole to the leaf spring subassembly accurately:

the first step is as follows: firstly, a plate spring assembly needing punching is placed in a gap between rotating rollers 8 on the two leftmost sides;

the second step is that: then, simultaneously starting the two driving motors 9, enabling the rotating shaft 6 to drive the rotating roller 8 to rotate, enabling the plate spring assembly needing punching to move horizontally, and enabling one displacement sensor 21 to detect one end of the plate spring assembly to enable the plate spring assembly to move continuously until the other displacement sensor 21 detects the plate spring assembly, wherein the punching head 5 is just positioned at the center of the plate spring assembly;

the third step: and finally, opening the first electric telescopic rod 4, and enabling the driving end of the first electric telescopic rod 4 to extend to drive the punching head 5 to vertically move downwards to punch a hole on the plate spring assembly.

When the automatic blanking is carried out to the leaf spring subassembly that needs counterpunching hole completion:

the first step is as follows: firstly, the leaf spring assembly continues to be driven after punching is finished until the leaf spring assembly is separated from the rotating roller 8 and falls on the top of the installation bottom box 1, and the leaf spring assembly can slide between two limiting wheels in the process;

the second step: then, the second electric telescopic rod 18 is opened, so that the driving end of the second electric telescopic rod 18 extends to drive the clamping plate 19 to clamp the plate spring assembly;

the third step: then, the servo motor 13 is started, the threaded screw rod 11 is rotated, the nut 12 drives the supporting column 14 and the supporting plate 15 to horizontally move along the direction of the installation cavity, the roller 17 rolls in the second electric telescopic rod 18 in the process until the supporting plate 15 moves to the tail end of the installation bottom box 1, the plate spring assembly is loosened, and at the moment, the plate spring assembly slides to a specified material receiving position along the inclined surface 20.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A hot straightener punch for a leaf spring quench line comprising: installation under casing (1), mount (2), mounting panel (3) and first electric telescopic handle (4), its characterized in that, mount (2) fixed connection is at the rear side at installation under casing (1) top, mounting panel (3) fixed connection is at the top of mount (2) front side, first electric telescopic handle (4) fixed connection is at the top of mounting panel (3), just the drive end of first electric telescopic handle (4) runs through mounting panel (3) and fixedly connected with punching head (5), punching head (5) are located the top of installation under casing (1), the top of installation under casing (1) is provided with accurate positioning mechanism, the inside of installation under casing (1) is provided with the installation cavity, be provided with unloading mechanism in the installation cavity.

2. The hot straightening machine punching machine for the plate spring quenching line according to claim 1, wherein the precise positioning mechanism comprises four rotating shafts (6), two limiting plates (7), four rotating rollers (8) and two driving motors (9), the four rotating shafts (6) are respectively and symmetrically and rotatably connected to the front side of the fixing frame (2), the two limiting plates (7) are symmetrically arranged at the top of the installation bottom box (1), the other end of each rotating shaft (6) is rotatably connected to the rear side of the corresponding limiting plate (7), the four rotating rollers (8) are respectively and fixedly sleeved on the four rotating shafts (6), the two rotating rollers (8) arranged on the rear side of each limiting plate (7) are both positioned on the same vertical line, a gap is reserved between the two rotating rollers (8), and the two driving motors (9) are respectively and fixedly connected to the front sides of the two limiting plates (7), and every side the drive shaft of driving motor (9) is connected with one of them axis of rotation (6) transmission of every side respectively, the equal fixedly connected with displacement sensor (21) in both sides of mounting panel (3), displacement sensor (21) are located the top of installation under casing (1).

3. The hot straightening machine punching machine for the plate spring quenching line according to claim 1, characterized in that the blanking mechanism comprises two limiting ports (10), two threaded screw rods (11), two nuts (12), two servo motors (13), two support columns (14), two support plates (15), two limiting grooves (16), two rollers (17) and two second electric telescopic rods (18), the two limiting ports (10) are symmetrically arranged at the top of the installation bottom box (1), the limiting ports (10) are communicated with the installation cavity, the two threaded screw rods (11) are respectively in threaded connection with the two installation cavities, the two nuts (12) are respectively in threaded connection with the two threaded screw rods (11), two cavities are symmetrically arranged in the installation bottom box (1), the two servo motors (13) are respectively and fixedly connected with the two cavities, just the drive shaft of servo motor (13) is connected, two with the one end transmission of screw lead screw (11) support column (14) fixed connection respectively is at the top of two nuts (12), just support column (14) sliding connection is in spacing mouthful (10), two backup pad (15) activity cup joints respectively at the top of two support columns (14), two spacing groove (16) symmetry is seted up in installation under casing (1), just spacing groove (16) link up with installation cavity and spacing mouthful (10) homogeneous phase, two gyro wheel (17) roll connection respectively is in two spacing grooves (16), the outside of gyro wheel (17) is provided with the locating rack, the bottom fixed connection of locating rack and nut (12), two second electric telescopic handle (18) fixed connection respectively is in one side that two backup pads (15) are carried on the back mutually, just the drive end of second electric telescopic handle (18) runs through backup pad (15) and fixedly connected with pinch-off plate (19) An inclined plane (20) is formed in one side of the top of the installation bottom box (1), and the inclination angle of the inclined plane (20) is 45 degrees.

4. The hot straightening machine punching machine for the plate spring quenching line according to claim 3, wherein two baffle plates are symmetrically and fixedly connected to the top of the inclined surface (20), a threaded hole is formed in the bottom of the supporting plate (15), a thread is arranged at the top end of the supporting column (14), and the top end of the supporting column (14) is inserted into the threaded hole in a threaded manner.

5. The hot straightening machine punching machine for the plate spring quenching line according to claim 2, characterized in that two supporting columns are symmetrically and fixedly connected to the top of the installation bottom box (1), a supporting plate is fixedly connected to the top of the supporting columns, and the height of the supporting plate is equal to the lowest position of the gap between the two rotating rollers (8).

6. The hot straightener punching machine for the plate spring quenching line of claim 1 is characterized in that two limiting wheels are symmetrically and rotatably connected to the top of the installation bottom box (1).

7. The hot straightening machine punching machine for the plate spring quenching line according to claim 3, characterized in that a control board is arranged at the front side of the installation bottom box (1), and the control board is electrically connected with the first electric telescopic rod (4), the driving motor (9), the servo motor (13) and the second electric telescopic rod (18).

8. The hot straightening machine punching machine for the plate spring quenching line according to claim 1, characterized in that four corners of the bottom of the installation bottom box (1) are fixedly connected with supporting legs.

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