CN215556340U

CN215556340U - Main shaft die-casting material feeding unit

Info

Publication number: CN215556340U
Application number: CN202121300810.0U
Authority: CN
Inventors: 韦刚; 杨小勇; 简定国
Original assignee: Chongqing Haolang Machinery Manufacturing Co ltd
Current assignee: Chongqing Haolang Machinery Manufacturing Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-01-18
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a main shaft die-casting feeding device which comprises a material collecting box (1) and a material placing frame (14), wherein two lifting plates are arranged between the material collecting box (1) and the material placing frame (14); a push rod (11), a first stepping motor (4) and a first clamp (31) are arranged on the material placing frame (1); a mechanical arm is arranged on one side of the material placing frame (14), a second clamping clip (32) is arranged on the mechanical arm, and a feeding belt (6) is arranged between the material placing frame (14) and the mechanical arm. The automatic feeding device is provided with the material collecting box, the first lifting plate and the second lifting plate, so that automatic feeding is facilitated, the first clamping clips and the first stepping motor are arranged, so that materials can be conveniently taken from the material placing frame, the material taking device is moved to a position where the second clamping clips are easy to clamp and take materials, the two second clamping clips are switched in rotation to achieve feeding and taking on a die casting machine, the requirement of automatic feeding and processing is met, and production safety is guaranteed.

Description

Main shaft die-casting material feeding unit

Technical Field

The utility model relates to the field of motorcycle spindle machining, in particular to a spindle die-casting feeding device.

Background

The processing of the engine main shaft of the motorcycle needs die-casting forming, especially the processing of the spline position is die-casting forming once, at present, the manual feeding and feeding are mainly used, on one hand, the number of blanks is large, and the blanks need to be finished manually, which is labor-consuming; in addition, because the processing time of die-casting molding is short, the feeding and discharging frequency is high, the labor intensity of manual feeding and discharging is high, the fatigue of operators is easily caused, and the production safety is directly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a main shaft die-casting feeding device convenient for feeding and processing.

The technical scheme of the utility model is as follows:

a main shaft die-casting feeding device comprises a material collecting box and a material placing frame, wherein a conveying belt with the same width is arranged in the middle of the material collecting box, a plurality of partition plates are arranged on the conveying belt at equal intervals, a baffle is arranged in the material collecting box at a position corresponding to the output direction of the conveying belt, a gap is formed between the lower end of the baffle and the upper end face of the conveying belt, and the output end of the conveying belt extends out of the gap; a feeding table is arranged on the inner wall of one side of the material collecting box corresponding to the output end of the conveying belt, an infrared sensor is arranged on the feeding table, a first lifting plate is arranged between the feeding table and the conveying belt, and a second lifting plate is arranged between the feeding table and the material placing frame;

an inclined plate is arranged at the upper end of the material placing frame, a stop block is arranged at the lower end of the inclined plate, a push rod connected with the output end of a first motor is arranged at one end of the material placing frame, a first clamp is arranged at the other end of the material placing frame, and the corresponding position on the first clamp is connected with the output end of a first stepping motor; a mechanical arm is arranged on one side of the material placing frame, a rotating shaft is arranged on the mechanical arm, a connecting rod is arranged on the rotating shaft, two second clamping clips are symmetrically arranged on the connecting rod, and a feeding belt is arranged between the material placing frame and the mechanical arm; the corresponding positions of the first lifting plate, the second lifting plate, the first clamp and the second clamp, the conveyor belt, the infrared sensor and the mechanical arm are all connected with the PLC.

By adopting the structure, the spindle blank is placed in the material collecting box, the conveyor belt is started, only one spindle blank can be contained between two adjacent partition plates, and the baffle plates block the spindle blank, when the conveyor belt transfers the spindle blank, the situation that the spindle blank blocks the conveyor belt to run does not occur, the spindle blank falls into the position between two adjacent partition plates in sequence along with the action of gravity, is moved out of the gap position formed between the baffle plates and the conveyor belt and moves to the position of the first lifting plate, then the PLC controller starts the first lifting plate and the second lifting plate to sequentially transfer the spindle blank onto the material feeding table and the material placing frame, the material feeding table is provided with the infrared sensor, when the infrared sensor senses that no article exists at the corresponding position on the material feeding table, a signal is transmitted to the PLC controller, the PLC controller starts the first lifting plate to lift and feed the material, and after the first lifting plate descends and moves back, the PLC controller starts the conveyor belt to rotate for a certain distance, namely the distance length between two adjacent partition plates, and a main shaft blank at a corresponding position falls out between the two partition plates and falls onto the upper end face of the first lifting plate to wait for feeding.

When the spindle blank is moved to the material placing frame, the PLC controller starts a first motor to drive a push rod to horizontally push a corresponding spindle blank to a first clamp, the first clamp is opened at the moment, when the pushed spindle blank is pushed to the position, one part of the pushed spindle blank is ejected out of the material placing frame, and the ejected part is positioned in the clamping range of the first clamp, then the PLC controller enables the first motor to drive the push rod to retreat and enables the first clamp to clamp the spindle blank, then the PLC controller starts a first step motor to drive the first clamp to overturn and enable the spindle blank to overturn to a vertical position, then the PLC controller starts a mechanical arm to enable a second clamp at one end of a connecting rod to clamp the spindle blank and drive a rotating shaft to rotate, so that the second clamp at one end of the spindle blank is towards a die casting machine to feed the die casting machine, meanwhile, the first clamp is loosened, then the first step motor is started to rotate, then starting a first motor to push a push rod to push the next spindle blank to a first clamp, clamping the next spindle blank by the first clamp, driving the next spindle blank to turn over to a vertical position by a first stepping motor, at the moment, finishing the processing of the die-casting machine, firstly starting a mechanical arm to enable a second clamp at one end of a connecting rod to clamp the spindle blank on the first clamp, loosening the first clamp again and repeating the related steps, enabling the mechanical arm to drive the connecting rod to move, enabling the second clamp at the other end of the connecting rod to clamp the processed spindle blank and take the material out of the die-casting machine, then rotating in the horizontal direction to feed the unprocessed spindle blank onto the die-casting machine, simultaneously loosening the processed spindle blank, enabling the male spindle blank to fall onto a feeding belt, transferring to a next procedure for collection, and simultaneously returning to a standby position to prepare for clamping the spindle blank on the first clamp, and repeating the steps, the automatic feeding and material taking of the die casting machine are realized, the structure is simple and compact, meanwhile, the interference of processing and conveying is avoided, the requirement of a processing period can be guaranteed, and the production safety is further guaranteed.

In order to facilitate feeding and avoid feeding retardation, as an optimization, a first lifting cylinder connected with a PLC (programmable logic controller) is fixedly arranged on the outer side of the material collecting box, the output end of the first lifting cylinder is connected with the lower end of a first lifting plate, the upper end surface of the first lifting plate is of an inclined plane structure, the plane of the high end of the inclined plane structure is lower than the plane of the upper end surface of the conveying belt, the lower end of the inclined plane structure faces the feeding table, the upper end surface of the feeding table is a transition inclined plane, the lower end of the transition inclined plane faces the material placing frame, the outer side wall of the high end of the first lifting plate is close to the conveying belt, and the outer side wall of the lower end is attached to the outer side wall of the high end of the transition inclined plane.

In order to facilitate feeding and avoid feeding retardation, as an optimization, a second lifting cylinder connected with a PLC controller is fixedly arranged between the feeding table and the material placing frame, the output end of the second lifting cylinder is connected with the lower end of a second lifting plate, the upper end surface of the second lifting plate is an extension inclined plane, the high end of the extension inclined plane is flush with the low end of the transition inclined plane of the feeding table, the low end of the extension inclined plane faces the material placing frame, the outer side wall of the high end of the second lifting plate is attached to the outer side wall of the corresponding end of the material collecting box, and the outer side wall of the low end is attached to the outer side wall of the corresponding end of the material placing frame.

In order to simplify the structure and facilitate the installation, preferably, the first clamp comprises a fixed plate, the first stepping motor is fixedly arranged on a bracket fixedly connected with the material placing frame, a connecting plate is arranged at the output end of the first stepping motor and fixedly connected with the fixed plate, a first air cylinder and a second air cylinder are arranged on the fixed plate, a first fixed rod is arranged at the output end of the first air cylinder, and a first clamping plate is arranged on the first fixed rod; a second fixing rod is arranged at the output end of the second air cylinder, and a second clamping plate is arranged on the second fixing rod; and the first stepping motor, the first air cylinder and the second air cylinder are all connected with a PLC (programmable logic controller).

In order to better clamp and fix, preferably, the first clamping plate and the second clamping plate are both provided with a V-shaped groove, and when the first clamping plate and the second clamping plate are close to each other, the two V-shaped grooves surround to form a through hole which is through in the horizontal direction.

In order to simplify the structure and avoid feeding interference, preferably, a second stepping motor is arranged on the mechanical arm, the output end of the second stepping motor vertically extends downwards, the output end of the second stepping motor is connected with a rotating shaft, a connecting rod is arranged on the rotating shaft, and two second clamps are symmetrically arranged on the connecting rod; the second clamping includes and is connected fixed fagging with the connecting rod be equipped with third cylinder and fourth cylinder on the fagging, the output of third cylinder has set firmly third splint, the output of fourth cylinder has set firmly fourth splint, second step motor, third cylinder and fourth cylinder all are connected with the PLC controller.

In order to facilitate clamping movement, preferably, the third clamping plate and the fourth clamping plate are both provided with a V-shaped groove, and when the third clamping plate and the fourth clamping plate are close to each other, the two V-shaped grooves surround to form a through hole which is through up and down.

Has the advantages that: the automatic feeding device is provided with the material collecting box, the first lifting plate and the second lifting plate, so that automatic feeding is facilitated, the first clamping clips and the first stepping motor are arranged, so that materials can be conveniently taken from the material placing frame, the material taking device is moved to a position where the second clamping clips are easy to clamp and take materials, the two second clamping clips are switched in rotation to achieve feeding and taking on a die casting machine, the requirement of automatic feeding and processing is met, and production safety is guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the mounting structure of the material collecting box and the material placing frame.

Fig. 3 is a use state diagram of the first cardholder.

Fig. 4 is a schematic view of the mounting structure of the second clip.

Detailed Description

The utility model will be further explained with reference to the drawings.

As shown in fig. 1, 2, 3 and 4, the utility model includes a material collecting box 1 and a material placing frame 14, wherein a conveyor belt 11 with the same width is arranged in the middle of the material collecting box 1, a plurality of partition boards 111 are arranged on the conveyor belt 11 at equal intervals, a baffle 112 is arranged in the material collecting box 1 at a position corresponding to the output direction of the conveyor belt 11, the lower end of the baffle 112 and the upper end surface of the conveyor belt 11 form a gap, and the output end of the conveyor belt 11 extends out of the gap.

The inner wall of one side of the material collecting box 1 corresponding to the output end of the conveyor belt 11 is provided with a feeding table 13, the feeding table 13 is provided with an infrared sensor 131, the inner side of the material collecting box 1 is fixedly provided with a first lifting cylinder 151 connected with a PLC (programmable logic controller) (not marked), the output end of the first lifting cylinder 151 is connected with the lower end of a first lifting plate 141, the upper end surface of the first lifting plate 141 is of an inclined plane structure, the plane of the high end of the inclined plane structure is lower than the plane of the upper end surface of the conveyor belt 11, the lower end of the inclined plane structure faces the feeding table 13, the upper end surface of the feeding table 13 is a transition inclined plane, the low end of the transition inclined plane faces the material placing frame 14, the outer side wall of the high end of the first lifting plate 141 is close to the conveyor belt 11, and the outer side wall of the low end is attached to the outer side wall of the high end of the transition inclined plane. A second lifting plate 142 is arranged between the feeding table 13 and the material placing rack 14.

The second lifting cylinder 152 connected with the PLC is fixedly arranged on the outer side of the material collecting box 1, the output end of the second lifting cylinder 152 is connected with the lower end of the second lifting plate 142, the upper end face of the second lifting plate 142 is an extension inclined plane, the high end of the extension inclined plane is flush with the low end of the transition inclined plane of the feeding table 13, the low end of the extension inclined plane faces the material placing frame 14, the outer side wall of the high end of the second lifting plate 142 is attached to the outer side wall of the corresponding end of the material collecting box 1, and the outer side wall of the low end is attached to the outer side wall of the corresponding end of the material placing frame 14.

The upper end of the material placing frame 14 is provided with an inclined plate, the lower end of the inclined plate is provided with a stop block 143, one end of the material placing frame 14 is provided with a push rod 15 connected with the output end of a first motor 21, the other end of the material placing frame is provided with a first clamp 31, the first clamp 31 comprises a fixing plate 311, the first stepping motor 4 is fixedly arranged on a support 12 fixedly connected with the material placing frame 14, the output end of the first stepping motor 4 is provided with a connecting plate 121, the connecting plate 121 is fixedly connected with the fixing plate 311, the fixing plate 311 is provided with a first air cylinder 41 and a second air cylinder 42, the output end of the first air cylinder 41 is provided with a first fixing rod 411, and the first fixing rod 411 is provided with a first clamping plate 412; a second fixing rod 421 is arranged at the output end of the second air cylinder 42, and a second clamping plate 422 is arranged on the second fixing rod 421; the first stepping motor 4, the first air cylinder 41 and the second air cylinder 42 are all connected with a PLC controller.

The first clamping plate 412 and the second clamping plate 422 are both provided with V-shaped grooves, and when the first clamping plate 412 and the second clamping plate 422 are closed to each other, the two V-shaped grooves surround to form a through hole which is through in the horizontal direction.

A mechanical arm is arranged on one side of the material placing rack 14, a second stepping motor 7 is arranged on the mechanical arm, the output end of the second stepping motor 7 vertically extends downwards, the output end of the second stepping motor 7 is connected with a rotating shaft 51, a connecting rod 5 is arranged on the rotating shaft 51, and two second clips 32 are symmetrically arranged on the connecting rod 5; the second clamping 32 includes and is connected fixed fagging 321 with connecting rod 5 be equipped with third cylinder 43 and fourth cylinder 44 on the fagging 321, the output of third cylinder 43 has set firmly third splint 431, the output of fourth cylinder 44 has set firmly fourth splint 441, second step motor 7, third cylinder 43 and fourth cylinder 44 all are connected with the PLC controller. A feeding belt 6 is arranged between the material placing frame 14 and the mechanical arm.

The third clamping plate 431 and the fourth clamping plate 441 are both provided with V-shaped grooves, and when the third clamping plate 431 and the fourth clamping plate 441 are close to each other, the two V-shaped grooves surround to form a through hole which is through up and down.

The conveyor belt 11, the infrared sensor 131 and the mechanical arm are all connected with a PLC controller.

The using method of the utility model is as follows:

as shown in fig. 1 to 4, during processing, a spindle blank (not shown) is placed in the collection box 1, the conveyor belt 11 is started, only one spindle blank can be accommodated between two adjacent partition boards 111, and the stop of the baffle 112 is provided, so that when the conveyor belt 11 transfers the spindle blank, the situation that the spindle blank blocks the operation of the conveyor belt 11 does not occur, the spindle blank falls into the position between two adjacent partition boards 111 in sequence under the action of gravity, is moved out of the gap formed between the baffle 112 and the conveyor belt 11, and moves to the position of the first lifting plate 141.

Along with the movement of the conveyor belt 11, at the discharging position, the partition 111 rotates downward along with the movement of the drive wheel on the conveyor belt 11, the rotating partition moves to an inclined plane position, the main shaft blank moves to the upper end surface of the first lifting plate 141 along with the inclined plane formed by the rotation of the partition 111, the PLC controller starts the first lifting cylinder 151 to drive the first lifting plate 141 to lift, because the upper end surface of the first lifting plate 141 is of an inclined plane structure, the outer side wall of the lower end of the first lifting plate 141 is attached to the outer side wall of the higher end of the transition inclined plane, during the moving process of the first lifting plate 141, the main shaft blank attaches to the outer side wall of the corresponding end of the feeding table 13 without falling off while in the abutting state of the inclined plane structure, when the main shaft blank is transferred to the higher end position of the feeding table 13, the main shaft blank automatically moves to the upper end surface of the feeding table 13, and the upper end surface of the feeding table 13 is of the transition inclined plane, the main shaft blank automatically moves to the lower end position of the feeding table 13, and because the upper end surface of the second lifting plate 142 is an extension inclined surface, the main shaft blank directly moves to the upper end surface of the second lifting plate 142, and because the outer side wall of the lower end of the second lifting plate 142 is attached to the outer side wall of the corresponding end of the material placing frame 14, similarly, the outer side wall of the corresponding end of the material placing frame 14 is attached to the outer side wall of the lower end of the second lifting plate 142 while the main shaft blank is in the abutting state of the extension inclined surface, and the main shaft blank does not fall off, and then the PLC starts the second lifting cylinder 152 to drive the second lifting plate 142 to lift, so that the main shaft blank is placed on the material placing frame 14.

The main shaft blanks are sequentially arranged on the material placing frame 14, because the upper end surface of the material placing frame 14 is an inclined plate surface, the main shaft blanks are sequentially arranged according to the inclination direction, a stop block 143 is arranged at the lower end of the inclined plate, an included angle is formed, and the included angle position is the position for placing the main shaft blanks and the position to be pushed.

The PLC controller starts the first motor 21 on the spindle blank on the material placing rack 14, drives the push rod 15 to push the corresponding spindle blank horizontally to the first clamp 31, at this time, the first clamp 31 is opened, i.e., the first clamping plate 412 and the second clamping plate 422 are separated, the pushed spindle blank is pushed between the first clamping plate 412 and the second clamping plate 422, a part of the spindle blank has emerged out of the stocker 14, the part of the protrusion is located in the range of the first clamp 31, and then the PLC controller makes the first motor 21 drive the push rod 15 to retreat, and the first clamping plate 412 and the second clamping plate 422 are closed, the formed through hole running through in the horizontal direction clamps the outer side of the corresponding position of the spindle blank, and then the PLC controller starts the first stepping motor 4 to drive the first clamping clamp 31 to turn over, so that the spindle blank turns over to the vertical position (as shown in a diagram a and a diagram b in fig. 3).

Then, the PLC controller starts the mechanical arm to make the second clamp 32 at one end of the connecting rod 5 clamp the spindle blank, namely, start the third cylinder 43 and the fourth cylinder 44 at one end of the connecting rod 5 to make the third clamp 431 and the fourth clamp 441 at the corresponding end clamp the spindle blank, at the same time, the first clamp 31 is loosened, then the second stepping motor 7 is started to drive the rotating shaft 51 to rotate, to make the second clamp 32 clamping one end of the spindle blank towards the die casting machine and feed the die casting machine, at the same time, the first stepping motor 4 is started to rotate, the first clamp rotates along with the first clamp, then the first motor 21 is started to push the push rod 15 to push the next spindle blank to the first clamp 31 and is clamped by the first clamp 31, and is driven to turn to the vertical position by the first stepping motor 4, at this time, the die casting machine is finished, the mechanical arm is started to make the second clamp 32 at one end of the connecting rod 5 clamp the spindle blank on the first clamp 31, the first clamp is loosened again and the related steps are repeated, the mechanical arm drives the connecting rod 5 to move, the second clamp 32 at the other end of the connecting rod 5 clamps the processed spindle blank and takes the processed spindle blank out of the die casting machine, then the second stepping motor 7 drives the rotating shaft 51 to rotate, namely, the connecting rod 5 rotates in the horizontal direction and feeds the unprocessed spindle blank to the die casting machine, meanwhile, the second clamp 32 clamping the processed spindle blank is loosened, the processed spindle blank falls on the feeding belt 6 and flows to the next procedure for collection, the mechanical arm returns to the standby position at the same time, the spindle blank on the first clamp 31 is prepared to be clamped, the steps are repeated, automatic feeding and taking of the die casting machine are achieved, the structure is simple and compact, interference of processing and conveying is avoided, the requirement of a processing period can be guaranteed, and production safety is further guaranteed.

It should be noted that, the infrared sensor 131 is arranged on the feeding table 13, when the infrared sensor 131 senses that there is no article at the high position on the feeding table 13, a signal is sent to the PLC controller, the PLC controller starts the first lifting cylinder 151 to drive the first lifting plate 141 to lift and feed, after the first lifting plate 141 descends and moves back, the PLC controller starts the conveyor belt 11 to rotate for a certain distance, that is, the distance between two adjacent partition plates 111, a spindle blank at a corresponding position falls out between two partition plates 111, and falls onto the upper end face of the first lifting plate 141 along the inclined plane of the inclined downward partition plate 111 to wait for feeding, and this is repeated to ensure the continuity of automatic feeding.

In the moving process of the main shaft blank to be transferred, the gap between each part is set preferably to prevent the main shaft blank from falling.

The undescribed parts of the present invention are consistent with the prior art, and are not described herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.

Claims

1. The utility model provides a main shaft die-casting material feeding unit which characterized in that: the conveying device comprises a material collecting box (1) and a material placing frame (14), wherein a conveying belt (11) with the same width is arranged in the middle of the material collecting box (1), a plurality of partition plates (111) are equidistantly arranged on the conveying belt (11), a baffle (112) is arranged in the material collecting box (1) at a position corresponding to the output direction of the conveying belt (11), a notch is formed between the lower end of the baffle (112) and the upper end face of the conveying belt (11), and the output end of the conveying belt (11) extends out of the notch; a feeding table (13) is arranged on the inner wall of the material collecting box (1) corresponding to the output end of the conveyor belt (11), an infrared sensor (131) is arranged on the feeding table (13), a first lifting plate (141) is arranged between the feeding table (13) and the conveyor belt (11), and a second lifting plate (142) is arranged between the feeding table (13) and the material placing frame (14);

an inclined plate is arranged at the upper end of the material placing frame (14), a stop block (143) is arranged at the lower end of the inclined plate, a push rod (15) connected with the output end of a first motor (21) is arranged at one end of the material placing frame (14), a first clamp (31) is arranged at the other end of the material placing frame, and the corresponding position on the first clamp (31) is connected with the output end of a first stepping motor (4); a mechanical arm is arranged on one side of the material placing frame (14), a rotating shaft (51) is arranged on the mechanical arm, a connecting rod (5) is arranged on the rotating shaft (51), two second clamping clips (32) are symmetrically arranged on the connecting rod (5), and a feeding belt (6) is arranged between the material placing frame (14) and the mechanical arm; the first lifting plate (141), the second lifting plate (142), the corresponding positions of the first clamp (31) and the second clamp (32), the conveyor belt (11), the infrared sensor (131) and the mechanical arm are all connected with the PLC.

2. The die-casting feeding device for the main shaft according to claim 1, wherein: the outside of case (1) that gathers materials sets firmly first lift cylinder (151) of being connected with the PLC controller, the output of first lift cylinder (151) is connected with the lower extreme of first lifter plate (141), the up end of first lifter plate (141) is the inclined plane structure, and the eminence of this inclined plane structure holds the plane that the place plane is less than conveyer belt (11) up end place, and the low point end of inclined plane structure is towards pay-off platform (13), the up end of pay-off platform (13) is transition inclined plane, and work or material rest (14) are put towards to the low point end orientation on this transition inclined plane, and conveyer belt (11) are drawn close to the lateral wall of this first lifter plate (141) eminence end, and the lateral wall of low point end is laminated with the lateral wall of transition inclined plane eminence end.

3. The die-casting feeding device for the main shaft according to claim 2, wherein: a second lifting cylinder (152) connected with a PLC controller is fixedly arranged between the feeding table (13) and the material placing frame (14), the output end of the second lifting cylinder (152) is connected with the lower end of the second lifting plate (142), the upper end surface of the second lifting plate (142) is an extension inclined plane, the high end of the extension inclined plane is flush with the low end of the transition inclined plane of the feeding table (13), the low end of the extension inclined plane faces the material placing frame (14), the outer side wall of the high end of the second lifting plate (142) is attached to the outer side wall of the corresponding end of the material collecting box (1), and the outer side wall of the low end is attached to the outer side wall of the corresponding end of the material placing frame (14).

4. The die-casting feeding device for the main shaft according to claim 1, wherein: the first clamp (31) comprises a fixing plate (311), the first stepping motor (4) is fixedly arranged on a support (12) fixedly connected with the material placing frame (14), a connecting plate (121) is arranged at the output end of the first stepping motor (4), the connecting plate (121) is fixedly connected with the fixing plate (311), a first air cylinder (41) and a second air cylinder (42) are arranged on the fixing plate (311), a first fixing rod (411) is arranged at the output end of the first air cylinder (41), and a first clamping plate (412) is arranged on the first fixing rod (411); the output end of the second air cylinder (42) vertically extends downwards, a second fixing rod (421) is arranged at the output end of the second air cylinder (42), and a second clamping plate (422) is arranged on the second fixing rod (421); and the first stepping motor (4), the first air cylinder (41) and the second air cylinder (42) are all connected with a PLC controller.

5. The die-casting feeding device for the main shaft according to claim 4, wherein: the first clamping plate (412) and the second clamping plate (422) are respectively provided with a V-shaped groove, and when the first clamping plate (412) and the second clamping plate (422) are mutually closed, the two V-shaped grooves surround to form a through hole which is communicated in the horizontal direction.

6. The die-casting feeding device for the main shaft according to claim 1, wherein: a second stepping motor (7) is arranged on the mechanical arm, the output end of the second stepping motor (7) vertically extends downwards, the output end of the second stepping motor (7) is connected with a rotating shaft (51), a connecting rod (5) is arranged on the rotating shaft (51), and two second clamping clips (32) are symmetrically arranged on the connecting rod (5); second clamping (32) include and be connected fixed fagging (321) with connecting rod (5) be equipped with third cylinder (43) and fourth cylinder (44) on fagging (321), the output of third cylinder (43) has set firmly third splint (431), the output of fourth cylinder (44) has set firmly fourth splint (441), second step motor (7), third cylinder (43) and fourth cylinder (44) all are connected with the PLC controller.

7. The die-casting feeding device for the main shaft according to claim 6, wherein: the third clamping plate (431) and the fourth clamping plate (441) are both provided with V-shaped grooves, and when the third clamping plate (431) and the fourth clamping plate (441) are close to each other, the two V-shaped grooves surround to form a through hole which is through up and down.