CN107598645A - A kind of mechanical feed equipment for Sheet Metal Processing production line - Google Patents

Abstract

The invention discloses an automatic feeding equipment used in a sheet material processing production line, which comprises a frame (1), the two sides of the frame (1) are provided with a lifting device fixing plate (11), and the lifting device fixing plate (11) is provided with elevating device (3), and described elevating device (3) is connected with stocker (2), and one side of described stocker (2) is provided with pushing device (4); The pushing device (4) is arranged on the pushing mechanism fixed plate (13), and the pushing mechanism fixing plate (13) is arranged on the upper end of the frame (1); the pushing mechanism coupling (42) connects There is a screw drive mechanism (43) for pushing; the screw nut of the screw drive mechanism (43) for pushing is fixed with a cylinder bracket (44). The automatic feeding equipment of the present invention can be used in the flow operation of the sheet metal processing production line, provides the function of automatic loading and unloading, has the characteristics of large load capacity, simple and compact structure, and is suitable for loading and carrying.

Description

An automatic feeding equipment for sheet metal processing production line

technical field

The invention belongs to the field of automation equipment, and relates to an automatic feeding equipment that can be used in a plate processing production line.

Background technique

In the current sheet metal processing industry, there is still a wide range of manual feeding production methods in which workers move the sheet to the cutting platform, such as the water jet processing industry. The labor intensity of the workers is high and the production environment is poor, which does not conform to the current trend of industrial automation. . Generally, the feeding end of an automatic sheet metal production line requires an automatic feeding device, which should have the function of storing multiple sheets and sending them out in sequence, that is, the automatic feeding device must have the functions of lifting and sending out in the horizontal direction. Most of the feeding mechanisms of sheet metal automatic production lines have the above functions, but most of them are sucked by vacuum suction cups. For example, the invention patent of "an automatic loading and unloading device for sheet metal processing equipment" with patent No. Plate cantilever type automatic loading and unloading device" invention patent, all use vacuum suction cup to absorb the plate to move in two directions. Some sheet metal processing techniques, such as water jet processing, may turn the entire sheet into a number of scattered sheets, so usually the sheet needs to be clamped for carrying and fixing the tooling plate to facilitate the transportation of the processed sheet. Usually, the mass of the sheet and its tooling plate is large, and the fixture on the tooling plate is difficult to completely fix the sheet. When the vacuum suction cup absorbs the surface of the sheet material, it is easy to cause the sheet to separate from the tooling plate; if the vacuum suction cup absorbs the tooling plate, it will cause the vacuum adsorption module. The large volume has a certain influence on the rigidity of the loading and unloading mechanism, and the structure is not compact. In addition, the suction cup type loading and unloading equipment is usually used in occasions with a small load, and it is difficult to apply to a situation with a large load. Therefore, the suction cup type loading and unloading equipment is not suitable for sheet metal production lines with additional vehicles and heavy loads. So the present invention has very good market competition.

Contents of the invention

The purpose of the present invention is to propose an automatic feeding equipment for sheet metal processing production line, which can have the functions of lifting and sending out in the horizontal direction, has a simple structure, can bear a large load, and can be suitable for adding sheets of vehicles production line. In the present invention, the tooling tray is used as the carrier.

The technical solution adopted in the present invention: an automatic feeding equipment for sheet metal processing production line, comprising a frame (1), the two sides of the frame (1) are provided with lifting device fixing plates (11), the Lifting device fixed plate (11) is provided with lifting device (3), is connected with storage rack (2) on the described lifting device (3), and one side of described material storage rack (2) is provided with pushing device ( 4).

Preferably, the pushing device (4) is arranged on the pushing mechanism fixing plate (13), and the pushing mechanism fixing plate (13) is arranged on the upper end of the frame (1).

Preferably, the pushing device (4) includes a pushing drive motor (41), and the pushing driving motor (41) is connected with a pushing mechanism coupling (42), and the pushing mechanism coupling (42) is connected with a pushing With leading screw transmission mechanism (43); Described pushing is fixed with cylinder support (44) on the screw nut of lead screw transmission mechanism (43); Described cylinder support (44) is fixed with cylinder (45); Described cylinder ( 45) The rear end plate (461) of the spring adjustment mechanism (46) is connected, and the front end plate (462) of the spring adjustment mechanism (46) is connected with the electromagnet (47).

Preferably, the lifting device (3) includes a lifting screw transmission mechanism (31), and the lifting screw transmission mechanism (31) is respectively fixed on the lifting device fixing plates (11) on both sides of the frame (1) The lower end of one of the lifting screw transmission mechanisms (31) is connected with the lifting drive motor (33) through the lifting device coupling (32); the lifting screw transmission mechanisms (31) on both sides are connected through the synchronous belt transmission mechanism ( 34) Transmission connection; linear bearing guide mechanisms (35) are provided on both sides of the lifting screw transmission mechanism (31).

Preferably, the spring adjustment mechanism (46) includes a rear end plate (461) and a front end plate (462); the rear end plate (461) is provided with a through hole; the front end plate (462) is provided with a threaded hole; A guide shaft (463) is arranged between the rear end plate (461) and the front end plate (462); the guide shaft (463) is a stepped shaft structure, and the large shaft diameter shaft section passes through the rear end plate (461) and has a A retaining ring groove, on which there is a shaft retaining ring (464) to prevent the rear end plate (461) from disengaging from the guide shaft (463), and the small shaft diameter shaft section is provided with threads, which form a threaded connection with the threaded hole of the front end plate (462) ; The guide shaft is provided with a spring (465), and its two ends bear against the rear end plate (461) and the front end plate (462) respectively.

Preferably, the storage rack (2) is used to store the tooling tray (5), and its inner side is provided with a bearing rolling device (21) and a limiting rolling device (23) in a layered structure. The rolling device (21) is fixedly connected with the storage rack (2) through an intermediate connecting piece (23), and the position-limiting rolling device (23) is directly fixed on the inside of the storage rack (2).

Compared with the prior art, the beneficial effects of the present invention are: (1) The automatic feeding equipment provided by the present invention, which can be used in the sheet metal processing production line, is equipped with a lifting device and a pushing device, which can realize automatic feeding on demand function, it can replace the manual loading and unloading operation, and liberate people from the heavy loading and unloading work; (2) the present invention uses the storage rack to store the tooling tray, and realizes the overall lifting of the storage rack and the tooling tray through the lead screw, avoiding The shortcoming that the mechanical arm vacuum adsorption method easily causes the sheet material to separate from the carrier tool when absorbing the sheet material of the carrier tool can be applied to the sheet material production line with the carrier tool added; (3) the present invention lifts and lowers through the screw drive, A larger load range can be achieved, and the structure is more compact than the mechanical arm vacuum adsorption method.

Description of drawings

Fig. 1 is a schematic structural view of an automatic feeding device used in a sheet metal processing production line according to the present invention.

Fig. 2 is a schematic diagram of the frame structure of the present invention.

Fig. 3 is the schematic diagram of storage rack of the present invention;

Fig. 4 is a schematic diagram of stacking tooling trays of the storage rack of the present invention;

Fig. 5 is the structural representation of lifting device of the present invention;

Fig. 6 is the schematic diagram of the lifting device sensor of the present invention;

Fig. 7 is the schematic diagram of pushing device of the present invention;

Fig. 8 is a schematic structural view of the spring adjustment mechanism of the present invention.

1. Rack; 11. Lifting device fixing plate; 12. Idler wheel fixing plate; 13. Pushing mechanism fixing plate; 2. Storage rack; 21. Bearing rolling device; 22. Bearing rolling device connector; , Limiting rolling device; 3, Lifting device; 31, Lifting screw transmission mechanism; 32, Lifting device coupling; 33, Lifting drive motor; 34, Synchronous belt transmission mechanism; 35, Linear bearing guide mechanism; 36, Sensor; 4. Pushing device; 41. Pushing drive motor; 42. Coupling of pushing mechanism; 43. Lead screw transmission mechanism for pushing; 44. Cylinder bracket; 45. Cylinder; 46. Spring adjustment mechanism; 461. Rear End plate; 462, front end plate; 463, guide shaft; 464, retaining ring for shaft; 465, spring; 47, electromagnet.

detailed description

The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

As shown in Fig. 1 and Fig. 2, a kind of automatic feeding equipment that is used for sheet material processing production line, comprises frame (1), and described frame (1) both sides are provided with lifting device fixing plate (11), so The lifting device fixing plate (11) is provided with a lifting device (3); the lower part of the frame (1) is provided with an idler fixing plate (12), and the idler fixing plate (12) is opened There is a chute for adjusting the tension, for fixing and adjusting the idler position of the synchronous belt transmission mechanism (34) to tension the synchronous belt; the upper end side of the frame (1) is provided with a pushing mechanism fixing plate ( 13), in this embodiment, the pushing mechanism fixing plate (13) has a threaded hole and has a structure similar to the motor bracket; the lifting device (3) is connected with a storage rack (2), One side of the storage rack (2) is provided with a pushing device (4).

In the specific technical solution of the present invention, as shown in Fig. 3 and Fig. 4, the material storage rack (2) is used for stacking and storing a plurality of tooling trays (5), and there are through holes on both sides, and the inner side is formed of layered structure. The rolling device (21) for bearing and the rolling device (23) for limiting are provided, and the rolling device (21) for bearing is fixedly connected with the storage rack (2) through the connecting piece (22) of the rolling device for bearing , the position-limiting rolling device (23) is directly fixed on the inner side of the material storage rack (2) through a bolt connection. Each tooling tray (5) in the stocker (2) is carried by the bearing rolling device (21) of each layer respectively, and its two sides are limited by the limiting rolling device (23).

In the specific technical solution of the present invention, as shown in Figure 1 and Figure 5, the lifting device (3) includes a lifting screw transmission mechanism (31), and the number of the lifting screw transmission mechanism (31) is two , respectively fixed on the lifting device fixing plates (11) on both sides of the frame (1), and connected with the storage rack (2) by screws respectively; the screw of one of the lifting screw transmission mechanisms (31) The lower end of the bar is connected with the lifting drive motor (33) through the lifting device coupling (32); the lifting screw drive mechanism (31) on both sides is connected through a synchronous belt drive mechanism (34); specifically, the synchronous The two synchronous pulleys of the belt transmission mechanism (34) are installed respectively with the lower ends of the leading screw of the lifting screw transmission mechanism (31) on both sides. The wheel fixing plate (12), the synchronous belt of the synchronous belt transmission mechanism (34) bypasses the synchronous wheel and the idler wheel, and the idler wheel is used for tensioning, and the synchronous belt transmission mechanism (34) is used to realize the lifting wire on both sides Synchronous transmission between the rod transmission mechanisms (31); linear bearing guide mechanisms (35) are provided on both sides of the lifting screw transmission mechanism (31), and the number of the linear bearing guide mechanisms (35) is 4, respectively Fixed on the lifting device fixing plates (11) on both sides, the linear bearings are respectively connected with the two sides of the storage rack (2) by screws, and are used to assist the lifting movement of the storage rack (2) to guide; in specific use , assuming that the tooling tray (5) with the sheets installed has been manually stacked in the storage rack (2) and the uppermost tooling tray (5) in the storage rack (2) is at the push-out height, firstly After the tooling tray (5) on the top of the pushing device is pushed out, the lifting drive motor (33) is started to drive the lifting of the storage rack (2). More specifically, the storage rack (2) Under the auxiliary guidance of the linear bearing guide mechanism (35), the lift screw drive mechanism (31) on both sides is synchronously driven by the lift drive motor (33) through the synchronous belt drive mechanism (34) to realize lifting; (1) sensor (36) is set on and utilizes sensor (36) to detect whether the tooling tray (5) on the top of the material storage rack (2) at this moment reaches the push-out height, as shown in Figure 6; when the material storage rack (2) After all the tooling trays are pushed out, manually stack the tooling trays with installed sheets in the material storage rack (2) and control the lifting device (3) to lower the material storage rack (2) to the uppermost tooling Disc (5) is at push-out height.

In the specific technical solution of the present invention, as shown in Figure 7, the pusher device (4) is arranged on the pusher mechanism fixing plate (13) of the frame (1), including a push drive motor (41), so Said pushing drive motor (41) is fixed on the pushing mechanism fixed plate (13) and is similar to the motor support structure place, connects and pushes one end of the leading screw with the leading screw transmission mechanism (43) by pushing the pushing mechanism shaft coupling (42); The said pushing screw transmission mechanism (43) is fixed on the said pushing mechanism fixing plate (13), arranged along the pushing direction of the tooling plate (5), and the cylinder support (44) is fixed on the screw nut; the cylinder support (44) is a sheet material with a plurality of through holes, on which the cylinder (45) is fixed by bolt connection; the ejection end of the cylinder (45) is connected with the rear end of the spring adjustment mechanism (46) by screws plate (461), and the front end plate (462) of the spring adjustment mechanism (46) is connected with an electromagnet (47). The pushing screw transmission mechanism (43) is used to realize the movement of the tooling disk (5) in the pushing direction, and the cylinder (45) is used to realize the movement of driving the electromagnet (47) close to the tooling disk (5); The initial position of the nut of the screw drive mechanism (43) for pushing is on the extreme position where the screw drive mechanism (411) pushes out the opposite direction along the tooling plate (5). ) The electromagnet (47) indirectly fixed on the nut is just facing the magnetic object on the tooling plate (5) on the push-out height; After the tooling tray (5) at the top of the storage rack (2) is lifted to the push-out height, the cylinder (45) is ejected, and the electromagnet (47) is indirectly pushed through the spring adjustment mechanism (46) to be positioned at the push-out height. The magnetic block on the tooling plate (5) is pasted and the electromagnet (47) is energized to complete the attraction of the tooling plate (5), and then driven by the push drive motor (41) to drive the push screw transmission mechanism (43) Described electromagnet (47) moves along tooling disc (5) release direction, thereby tooling disc (5) is released; Afterwards the cylinder (45) resets and drives the electromagnet (47) to break away from the magnetic block of the tooling disc (5); finally the push drive motor (41) drives the screw nut of the lead screw transmission mechanism (43) to get back to its initial position, and waits for Lifting device (3) promotes next tooling tray (5) to push-out height, constantly repeats above process.

In the specific technical solution of the present invention, as shown in Figure 8, the spring adjustment mechanism (46) includes a rear end plate (461) and a front end plate (462); the rear end plate (461) is provided with a through hole; The front end plate (462) is provided with a threaded hole; the rear end plate (461) and the front end plate (462) are provided with a guide shaft (463); the guide shaft (463) is a stepped shaft structure with a large shaft diameter The shaft section passes through the rear end plate (461) and forms a gap fit with the upper through hole. In addition, the large shaft diameter shaft section is provided with a retaining ring groove, and a shaft retaining ring (464) is arranged on it to prevent the rear end plate (461) from being disengaged from the guide. Shaft (463); the shaft section of the small shaft diameter is provided with threads, which form a threaded connection with the threaded hole of the front end plate (462); the guide shaft is provided with a spring (465), and its two ends respectively withstand the rear end plate (461) and front end plate (462); said spring adjustment mechanism (46) is passed through the spring (465) elongation and contraction between rear end plate (461) and front end plate (462) to rear end plate (461) and front end plate ( 462) distance is adjusted, and there is a certain error between the distance between the electromagnet (47) and the magnetic object on the tooling plate (5) and the stroke of the cylinder, so as to ensure that the electromagnet (47) and the magnetic object on the tooling plate are attracted combine.

Embodiment one

Referring to Figures 1 to 8, an automatic feeding device that can be used in a sheet metal processing production line includes a frame (1), a storage rack (2), a lifting device (3) and a pushing device (4);

As shown in Fig. 1 and Fig. 2, the main body of described frame (1) is spliced by section bar, is fixed with elevating device fixed plate (11), idler fixed plate (12), Pushing mechanism fixed plate (13). The lifting device fixing plate (11) is arranged on both sides of the frame (1), and there are connecting holes corresponding to the lifting device (3) on it; the idler fixing plate (12) is fixed on the frame ( 1) In the lower position in the middle, there is a chute for adjusting the tension on it, which is used to fix and adjust the position of the idler wheel of the synchronous belt transmission mechanism (34) to tension the synchronous belt; in this embodiment, the The pushing mechanism fixed plate (13) is fixed on the lifting device and has a threaded hole and has a structure similar to the motor support.

The storage rack (2) includes a rolling device (21) for loading and a rolling device (23) for limiting, as shown in FIG. 3 . In this embodiment, the material storage rack (2) is welded by steel plates, and a plurality of bolt holes are opened on the side plates. The rolling device (21) for bearing and the rolling device (23) for limiting are fixed on both sides of the storage rack (2) in a layered structure; the rolling device (21) for bearing is connected by the rolling device connector ( 22) It is fixed on both sides of the storage rack (2), and is used to carry the tooling plate (5) equipped with sheet metal; the limiting rolling device (23) is directly fixed to the storage rack (2) by bolts Both sides are used to limit the two sides of the tooling plate (5). In this embodiment, both rolling devices use roller bars. The storage unit is used for stacking and storing sheets and tooling trays, as shown in FIG. 4 .

As shown in Figure 5, the lifting device (3) includes a lifting screw transmission mechanism (31), a lifting device coupling (32), a lifting drive motor (33), a synchronous belt transmission mechanism (34), a linear bearing guide Mechanism (35) and sensor (36). The number of the lifting screw transmission mechanism (31) is 2, which are respectively installed on the lifting device fixing plate (11) on both sides of the frame (1), and the screw nuts of each lifting screw transmission mechanism (31) are respectively It is connected with both sides of the material storage rack (2) by screws. In this embodiment, the lower ends of the lead screws of the two lifting screw transmission mechanisms (31) are connected by a synchronous belt transmission mechanism (32). The lower end of the leading screw of (31), the synchronous belt is tensioned by an idler, and the idler is fixed on the idler fixed plate (12); the lower end of the leading screw of one of the lifting screw transmission mechanisms (31) passes through the lifting device The shaft coupling (32) is connected with the lifting drive motor (33), and the lifting drive motor (33) is fixed on the frame (1) through an intermediate piece; the number of the linear bearing guide mechanisms (35) is 4, They are arranged on both sides of the lifting screw transmission mechanism (31) respectively, and are fixed on the fixing plate (11) of the lifting device through bolt connection; the linear bearing of each linear bearing guide mechanism (35) is respectively connected with the storage on the side by screws. The material rack (2) is connected; the sensor (36) is fixed on the frame (1) by bolts, and is used to detect whether the sheet material reaches the push-out height, as shown in Figure 6.

Pushing device (4), as shown in Figure 7-8, described pushing device (4) is arranged on the fixed plate (13) of pushing mechanism, comprises pushing driving motor (41), pushing mechanism coupling ( 42), push with screw transmission mechanism (43), cylinder support (44), cylinder (45), spring adjustment mechanism (46) and electromagnet (47), as shown in Figure 8. The push drive motor (41) is fixed on the pusher mechanism fixed plate (13) similar to the motor bracket structure, through the pusher mechanism coupling (42) and the push screw transmission mechanism (41). One end of the bar is connected; the pushing screw transmission mechanism (43) is fixed on the pushing mechanism fixing plate (13), arranged along the pushing direction of the tooling plate, and the cylinder support (44) is fixed on the screw nut through bolt connection; The cylinder support (44), the cylinder support (44) is a plate with a plurality of through holes, on which the cylinder (45) is fixed by bolt connection; the cylinder (45) is connected with a spring adjustment mechanism The rear end plate (461) of (46), the front end plate (462) of said spring adjustment mechanism (46) is connected with electromagnet (47) by screw. The spring adjustment mechanism (46) includes a rear end plate (461) and a front end plate (462); the rear end plate (461) is provided with a through hole; the front end plate (462) is provided with a threaded hole; the rear end plate (462) is provided with a threaded hole; There is a guide shaft (463) between the end plate (461) and the front end plate (462); the guide shaft (463) is a stepped shaft structure, and the shaft section with a large shaft diameter passes through the rear end plate (461) and its upper through hole to form a gap In addition, the shaft section with a large shaft diameter is provided with a retaining ring groove, and a shaft retaining ring (464) is arranged on it to prevent the rear end plate (461) from detaching from the guide shaft (463); the shaft section with a small shaft diameter is provided with threads, and The threaded holes of the front end plate (462) form a threaded connection; the guide shaft is provided with a spring (465), and its two ends respectively withstand the rear end plate (461) and the front end plate (462); the spring adjustment mechanism (46) The distance between the rear end plate (461) and the front end plate (462) is adjusted through the extension and contraction of the spring (465) between the rear end plate (461) and the front end plate (462), allowing the electromagnet (47) and There is a certain error between the distance of the magnetic object block on the tooling disk (5) and the cylinder stroke to ensure that the electromagnet (47) is attracted to the magnetic object block on the tooling disk; The initial position of the nut is on the limit position where the lead screw transmission mechanism (411) pushes out the opposite direction along the tooling plate (5). At this time, the electromagnet (47) indirectly fixed on the nut by the spring adjustment mechanism (46) and the cylinder (45) ) is just facing the magnetic block on the tooling disc (5) on the push-out height.

The automatic feeding equipment that can be used in the sheet metal processing production line assumes that the tooling trays (5) that have been installed with the sheets have been manually stacked in the storage rack (2) and that the storage rack (2) is located at the lowest position. The tooling plate (5) above is at the push-out height. When in use, the cylinder (45) is ejected, and the electromagnet (47) is indirectly pushed through the spring adjustment mechanism (46) to contact the tooling plate (5) at the push-out height. The magnetic block is pasted and the electromagnet (47) is energized to complete the attraction of the tooling plate (5), and then the push drive motor (41) drives the push with the screw drive mechanism (43) to drive the electromagnet (47) Move along the pushing direction of the tooling disc (5), thereby pushing out the tooling disc (5); when the pushing screw transmission mechanism (43) completes the stroke, the electromagnet (47) is powered off, and then the cylinder (45) resets to drive The electromagnet (47) breaks away from the magnetic block of the tooling plate (5); finally the push drive motor (41) drives the screw nut of the screw drive mechanism (43) to get back to its initial position, and waits for the lifting device (3) to move down. One tooling tray (5) is lifted to the push-out height; after the last tooling tray (5) is completely sent out of the automatic feeding equipment, the control system controls the lifting screw drive mechanism (31) to lift the storage material by the lowering drive motor (33). Rack (2), more specifically, the storage rack (2) is synchronously driven by the lifting drive motor (33) through the synchronous belt transmission mechanism (34) under the auxiliary guidance of the linear bearing guide mechanism (35) Lifting screw drive mechanism (31) on both sides realizes lifting; In addition, sensor (36) is set on the frame (1) and utilizes sensor (36) to detect whether the tooling tray (5) at the top of storage rack (2) is Reach the push-out height; when the sensor (36) detects that the top tooling tray (5) in the stocker (2) reaches the push-out height, the control system controls the lifting drive motor (33) to stop, and then the pusher The device (4) pushes out the tooling tray (5) as mentioned above and returns to the initial state, and repeats the above process continuously; when all the tooling trays in the material storage rack (2) are pushed out, manually install the tooling tray (5). The tooling trays are stacked in the material storage rack (2) and the lifting device (3) is controlled to lower the material storage rack (2) until the uppermost tooling tray (5) is at the push-out height.

For those skilled in the art, various other corresponding changes and modifications can be made according to the technical solutions and ideas described above, and all these changes and modifications should fall within the protection scope of the claims of the present invention.

Claims (6)

1. An automatic feeding device for a sheet metal processing production line, characterized in that: it comprises a frame (1), and both sides of the frame (1) are provided with lifting device fixing plates (11), and the lifting device The fixed plate (11) is provided with a lifting device (3), the lifting device (3) is connected with a storage rack (2), and one side of the storage rack (2) is provided with a pushing device (4) . 2. A kind of automatic feeding equipment for sheet metal processing production line according to claim 1, characterized in that: said pushing device (4) is arranged on the fixing plate (13) of pushing mechanism, and said pushing The material mechanism fixing plate (13) is located at the upper end of the frame (1). 3. A kind of automatic feeding equipment for sheet metal processing production line according to claim 1, it is characterized in that: described pushing device (4) comprises pushing driving motor (41), and described pushing driving motor (41 ) is connected to the pusher mechanism coupling (42), and the pusher mechanism coupling (42) is connected with a pushing screw transmission mechanism (43); Support (44); said cylinder support (44) is fixed with cylinder (45); said cylinder (45) is connected with the rear end plate (461) of spring adjustment mechanism (46), and said spring adjustment mechanism (46) The front end plate (462) is connected with electromagnet (47). 4. The automatic feeding equipment for sheet metal processing production line according to claim 1, characterized in that: the lifting device (3) includes a lifting screw drive mechanism (31), and the lifting screw drive Mechanisms (31) are respectively fixed on the lifting device fixing plates (11) on both sides of the frame (1), and the lower end of one of the lifting screw drive mechanisms (31) is connected to the lifting drive motor through the lifting device coupling (32) (33) connection; the lifting screw transmission mechanism (31) on both sides is connected through a synchronous belt transmission mechanism (34); the two sides of the lifting screw transmission mechanism (31) are provided with a linear bearing guide mechanism (35) . 5. A kind of automatic feeding equipment for sheet metal processing production line according to claim 3, it is characterized in that: described spring adjustment mechanism (46) comprises rear end plate (461) and front end plate (462); The rear end plate (461) is provided with a through hole; the front end plate (462) is provided with a threaded hole; the rear end plate (461) and the front end plate (462) are provided with a guide shaft (463); the guide The shaft (463) has a stepped shaft structure. The shaft section with a large shaft diameter passes through the rear end plate (461) and has a retaining ring groove, and a shaft retaining ring (464) is arranged on it to prevent the rear end plate (461) from being disengaged from the guide. Shaft (463), the shaft section of the small shaft diameter is provided with threads, and forms a threaded connection with the threaded hole of the front end plate (462); the guide shaft is provided with a spring (465), and its two ends respectively withstand the rear end plate (461) and front end plate (462). 6. The automatic feeding equipment for sheet metal processing production line according to claim 1, characterized in that: the storage rack (2) is used to store the tooling tray (5), and its inner side is in a layered structure The method is provided with a rolling device (21) for bearing and a rolling device (23) for limiting, and the rolling device (21) for bearing is fixedly connected with the storage rack (2) through an intermediate connector (23). The position limiting is directly fixed on the inside of the storage rack (2) with the rolling device (23).