CN217512758U

CN217512758U - Mechanical arm mechanism of computer pressure spring machine

Info

Publication number: CN217512758U
Application number: CN202221578303.8U
Authority: CN
Inventors: 杨承客
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-09-30
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a computer pressure spring machine arm mechanism, include: a reduction box is arranged on an output shaft of the driving motor; the bearing block is fixed on the main wall plate, a bearing wheel is arranged on the bearing block through a first bearing in a rotating mode, the center of the rear end face of the bearing wheel is connected with the output end of the reduction box, and a first protruding shaft which is eccentrically arranged is arranged at the front end of the bearing wheel; the mechanical arm base is arranged on the front end face of the main wall plate in a sliding mode through the guide rail assembly; the lower end of the mechanical arm base is provided with a cutter which is arranged in a detachable mode; a second convex shaft is arranged on the front end surface of the mechanical arm base; and two ends of the transmission arm are respectively hinged with the first convex shaft on the bearing wheel and the second convex shaft arranged on the mechanical arm base. The utility model has simple structure, and can realize the transmission between the driving motor and the mechanical arm base only through the bearing seat, the bearing wheel and the transmission arm; the reduction gearbox is arranged on the driving motor, so that the accuracy degree of transmission is greatly improved, efficient and accurate control is realized, and stable transmission is ensured.

Description

Mechanical arm mechanism of computer pressure spring machine

Technical Field

The utility model relates to a computer pressure spring machine technical field, concretely relates to computer pressure spring machine arm mechanism.

Background

The spring pressing machine is a mechanical device for producing a spring and can be divided into a semi-automatic type, an automatic type, a numerical control type and a full-computerized control type according to the driving mode of the spring pressing machine. The computer pressure spring machine is matched with a modern computer control servo system at high speed and accuracy, and the system is provided with a computer. The program data can be easily set and changed on the keyboard, and the adjustment is very convenient.

The computer pressure spring machine usually comprises a plurality of parts such as a straightening mechanism, a feeding mechanism, a reducing mechanism, a pitch control mechanism, a cutting mechanism and the like, wherein the reducing mechanism refers to a control mechanism of the outer diameter of a spring when the spring is wound, and the spring extends back and forth in a tool rest through an ejector rod so as to change the outer diameter of the spring; the pitch control mechanism is a mechanism for controlling the pitch of the spring, and the pitch cutter stretches back and forth in the cutter frame to change the effective number of turns of the spring; the cutting mechanism is used for executing the action of cutting the steel wire after the spring is wound and formed, which is the last processing action before the spring falls down, and the cutting is mainly completed by a cutter and a core on the base. The traditional computer spring machine has the problems of numerous parts, complex and fussy structure and high production and assembly difficulty.

To this end, chinese patent CN101559463B discloses an intelligent computer numerical control spring, wherein a pitch mechanism includes a pitch servo motor, an upper pitch shaft, a lower pitch shaft and a pitch screw transmission pair, the upper and lower pitch shafts are respectively perpendicular to a front wall plate and are symmetrical with respect to the axis of the pitch screw transmission pair, one end of the upper and lower pitch shafts is fixed on a nut of the pitch screw transmission pair, the other end is respectively provided with a pitch pin mounting hole for fixing and processing the pitch of the spring, the pitch servo motor is fixed on a rear wall plate, an output shaft is connected with a screw in the pitch screw transmission pair, and the upper and lower pitch shafts are opposite to a through hole on the front wall plate and can pass through the through hole. The pitch is adjusted through a servo motor and a pitch lead screw transmission pair.

However, the above solution has the following disadvantages:

the screw transmission pair is adopted for transmission, the problems of poor transmission precision and unstable transmission exist, meanwhile, the motor is directly connected with the ball screw, the torque of the motor is low, a large amount of mechanical inertia can be generated at the moment when the motor receives a computer instruction to start, the motor has an instant pause and cannot work according to the computer instruction in time, and meanwhile, when the computer instruction stops, the mechanical inertia cannot stop at the first time, so that the precision in the working process is unstable.

In view of this, it is urgently needed to improve the mechanical arm device of the pressure spring machine in the prior art so as to improve the assembly convenience degree and the transmission precision of the mechanical arm device of the pressure spring machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the precision is unstable in the complicated, production of current pressure spring machine arm device structure and the equipment degree of difficulty is big, the working process.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:

a computer pressure spring machine arm mechanism includes:

the driving motor is arranged on the back surface of the main wall plate, and a reduction box is arranged on an output shaft of the driving motor;

the bearing block is fixed on the front end face of the main wall plate, a first bearing is arranged on the bearing block, a bearing wheel is arranged on the bearing block, and the center of the rear end face of the bearing wheel is connected with the output end of the reduction gearbox; the center of the rear end face of the bearing wheel is in transmission connection with the first bearing, so that the bearing wheel is rotatably arranged on the bearing seat; the front end surface of the bearing wheel is provided with a first protruding shaft which is eccentrically arranged;

the mechanical arm base is arranged on the front end face of the main wall plate in a sliding mode through the guide rail assembly; the lower end of the mechanical arm base is provided with a cutter which is detachably arranged; a second protruding shaft is arranged on the front end face of the mechanical arm base;

and two ends of the transmission arm are respectively hinged with the first protruding shaft on the bearing wheel and the second protruding shaft arranged on the mechanical arm base.

In the above aspect, preferably, the guide rail assembly includes:

the sliding chute is arranged on the front end face of the main wallboard;

the guide rail is fixedly arranged in the sliding groove;

the sliding block is matched with the guide rail and is arranged on the guide rail in a sliding manner; the front end face of the sliding block is fixedly connected with the rear end face of the mechanical arm base.

In the above aspect, preferably, the transmission arm includes:

the two connecting shaft sleeves are respectively arranged on the bearing wheel and the mechanical arm base and are hinged with the first protruding shaft and the second protruding shaft through a second bearing; the opposite end surfaces of the two connecting shaft sleeves are provided with a connecting rod hole and a notch which are communicated, the notch is arranged along the direction vertical to the axial direction of the connecting rod hole, and the side surface of the connecting shaft sleeve is provided with a screw hole which is vertical and penetrates through the notch;

the connecting rod, its both ends set up respectively the connecting rod is downthehole, the connecting axle sleeve can sliding set up on the connecting rod, along with screw tightening in the screw hole, the lateral wall in connecting rod hole presss from both sides tightly the connecting rod.

In the above scheme, preferably, the lower end of the mechanical arm base is provided with a limiting convex part, and the limiting convex part is provided with a plurality of screw holes arranged side by side;

the cutter comprises a cutter holder and a cutter body which are arranged on the mechanical arm base, the cutter body comprises a cutter, a pitch cutter and a spring pushing pin, and the cutter holder comprises a cutter holder and a spring pushing pin cutter holder.

In the foregoing aspect, preferably, the cutter holder includes:

the upper part of the cutter seat body is provided with a first limiting groove and a first waist-shaped groove, the first limiting groove is matched with the limiting convex part, and the first waist-shaped groove penetrates through the bottom of the first limiting groove; a cutter groove arranged along the length direction of the cutter seat is arranged on the front end surface of the lower part of the cutter seat; the outer side surfaces of the cutter and the pitch cutter are matched with the cutter groove, the upper ends of the cutter and the pitch cutter are arranged in the cutter groove, and the lower ends of the cutter and the pitch cutter penetrate through the cutter groove;

and the cover plate is arranged on the outer side surface of the cutter groove and is used for fixing the cutter body in the cutter groove.

In the above aspect, preferably, the cross sections of the cutting blade and the pitch blade are square.

In the above aspect, preferably, the top spring pin holder includes:

the upper part of the spring pin mounting seat is provided with a second limiting groove and a second waist-shaped groove, the second limiting groove is matched with the limiting convex part, and the second waist-shaped groove penetrates through the bottom of the second limiting groove; a fixed block mounting groove arranged along the length direction of the spring bolt mounting seat is formed in the front end face of the lower part of the spring bolt mounting seat;

the top spring pin fixing block is arranged in the fixing block mounting groove and is fixedly connected with the side wall of the fixing mounting groove; a top spring pin mounting hole is formed in the lower end face of the top spring pin fixing block;

the upper end of the top spring pin body is inserted into the top spring pin mounting hole.

In the above scheme, preferably, the mechanical arm mechanisms are four groups, and include a first mechanical arm mechanism and a second mechanical arm mechanism which are arranged oppositely along the vertical direction, a third mechanical arm mechanism and a fourth mechanical arm mechanism which are arranged obliquely are arranged on one side of the first mechanical arm mechanism and the second mechanical arm mechanism, which is far away from the wire feeding mechanism, and the first mechanical arm mechanism, the second mechanical arm mechanism, the third mechanical arm mechanism and the fourth mechanical arm mechanism are arranged on the main wall plate and distributed in a shape like a letter K.

In the above aspect, preferably, the third mechanical arm mechanism and the fourth mechanical arm mechanism are symmetrically distributed on the main wall panel.

In the above scheme, the reduction gearbox is a planetary reduction gearbox.

Compared with the prior art, the utility model provides a computer pressure spring machine arm mechanism, through setting up the bearing frame, set up bearing wheel and the first bearing of being connected through reducing gear box and driving motor's output on the bearing frame, make the both ends of driving arm articulated with the second protruding axle on the first protruding axle on the bearing wheel and the arm base respectively, first protruding axle is eccentric settings on the bearing wheel, realize that driving motor drives the arm base and slides the setting through guide rail set spare on the main wall board, thereby independently realize the reducing action of cutter respectively, the displacement action and cut off the action. The utility model has simple structure, and can realize the transmission between the driving motor and the mechanical arm base only through the bearing seat, the bearing wheel and the transmission arm; the reduction gearbox is arranged on the driving motor, so that the accuracy degree of transmission is greatly improved, efficient and accurate control is realized, and stable transmission is ensured.

Drawings

Fig. 1 is a perspective view of the mechanical arm mechanism of the computer spring pressing machine of the utility model;

fig. 2 is a schematic structural view of the mechanical arm mechanism of the computer spring press machine of the present invention;

FIG. 3 is a schematic structural view of the main wall panel of the present invention;

fig. 4 is a schematic structural view of the driving arm of the present invention;

fig. 5 is a schematic structural view of the middle cutter of the present invention;

fig. 6 is a schematic structural view of the middle spring-loaded pin of the present invention.

The correspondence between the names and reference numbers of the components in fig. 1 to 6 is as follows:

a main wall plate 1, a driving motor 2, a bearing seat 3, a mechanical arm base 4, a transmission arm 5, a reduction box 6, a guide rail component 7, a cutter 8 and a top spring pin 9,

the bearing wheel 31, the first protruding shaft 32,

a second protruding shaft 41, a limit protruding portion 42, a screw hole 43,

an upper connecting shaft sleeve 51, a lower connecting shaft sleeve 52, a connecting rod 53, a connecting bearing 54, a slot 55, a screw hole 56,

the slide groove 71, the guide rail 72, the slider 73,

a cutter seat body 81, a cutter body 82, a cover plate 83, a first limit groove 84, a first waist-shaped groove 85, a cutter groove 86,

the spring supporting pin comprises a spring supporting pin mounting seat 91, a spring supporting pin fixing block 92, a spring supporting pin body 93, a second limiting groove 94, a second waist-shaped groove 95 and a fixing block mounting groove 96.

Detailed Description

The utility model provides a mechanical arm mechanism of a computer pressure spring machine, which has simple structure and can realize the transmission between a driving motor and a mechanical arm base only through a bearing seat, a bearing wheel and a transmission arm; the reduction gearbox is arranged on the driving motor, so that the accuracy degree of transmission is greatly improved, efficient and accurate control is realized, and stable transmission is ensured. The invention is described in detail below with reference to the drawings and the detailed description.

As shown in fig. 1, fig. 2 and fig. 3, the utility model provides a pressure spring machine mechanical arm mechanism of computer for the cutter on the pressure spring machine of drive computer stretches out, accomplishes the action that the steel wire cut off. The mechanical arm mechanism is arranged on a main wall plate 1 of the computer pressure spring machine and comprises a driving motor 2, a bearing seat 3, a mechanical arm base 4 and a transmission arm 5.

Driving motor 2 sets up on the back of main wallboard 1, still is equipped with reducing gear box 6 on driving motor 2, and reducing gear box 6 is the planet reducing gear box, and fixed the setting is on the back of main wallboard 1, and driving motor 2's output is connected with reducing gear box 6's input for increase driving motor 1's output torque, thereby make its effectual instruction of receiving the computer and giving down, and then realize steady accurate operation.

Bearing frame 3 is fixed on the preceding terminal surface of main wall board 1, is equipped with first bearing in the bearing frame 3. The front end face of the bearing seat 3 is provided with a bearing wheel 31, and the center of the rear end face of the bearing wheel 31 is in transmission connection with the first bearing, so that the bearing wheel 31 is rotatably arranged on the bearing seat 3. The center of the rear end face of the bearing wheel 31 is connected with the output end of the reduction gearbox 6, so that the bearing wheel 31 and the output end of the reduction gearbox 6 have the same rotating speed. The front end surface of the bearing wheel 31 is provided with a first protruding shaft 32, and the first protruding shaft 32 is arranged on one side of the center of the bearing wheel 31.

The mechanical arm base 4 is arranged on the front end face of the main wall plate 1 in a sliding mode through a guide rail assembly 7. The rail assembly 7 includes a slide groove 71, a rail 72, and a slider 73. The slide groove 71 is provided on the front end face of the main wall panel 1. The guide rail 72 is fixedly installed in the slide groove 71. The front end face of the sliding block 73 is fixedly connected with the rear end face of the mechanical arm base 4, and the sliding block 73 is matched with the guide rail 72 and arranged on the guide rail 72 in a sliding mode.

The front end surface of the mechanical arm base 4 is provided with a second protruding shaft 41. The lower extreme of arm base 4 is equipped with the cutter that can dismantle the setting, and the cutter is including installing the blade holder on the arm base and installing the cutter body on the blade holder. The tool holder comprises a cutter holder 8 and a spring-loaded pin holder 9. The lower extreme of arm base 4 is equipped with spacing convex part 42, is equipped with a plurality of screw holes 43 that set up side by side on the spacing convex part 42.

As shown in fig. 5, the cutter holder 8 includes a cutter holder body 81 and a cover plate 83, and the cutter body 82, which is a cutter and a pitch cutter, is mounted on the cutter holder 8. The rear end surface of the upper portion of the cutter holder body 81 is provided with a first limiting groove 84, the first limiting groove 84 is matched with the limiting convex portion 42, and the cutter holder body 81 can be arranged on the arm base 4 through the first limiting groove 84 and the limiting convex portion 42. The cutter holder body 81 is provided with a first waist-shaped groove 85, and the first waist-shaped groove 85 penetrates through the groove bottom of the first limiting groove 84. The front end surface of the lower part of the cutter seat body 81 is provided with a cutter groove 86 arranged along the length direction, the upper end of the cutter body 82 is arranged in the cutter groove 86, and the lower end of the cutter body 82 penetrates through the cutter groove 86. The cover plate 83 is mounted on the outer side surface of the cutter pocket 86 and is fixed to the cutter holder body 81 by screws for fixing the cutter body 82 in the cutter pocket 86. The cross sections of the cutter and the pitch cutter are square, and the shape and the size of the cutter groove 86 are matched with those of the cutter and the pitch cutter, so that the cutter body 82 is prevented from displacing when cutting or distance changing action is carried out, and the quality of a product is prevented from being influenced. The shapes and the sizes of the outer side surfaces of the cutter and the pitch cutter are the same, and the cutter and the pitch cutter can be replaced according to production requirements.

As shown in fig. 6, the sprung pin holder 9 includes a sprung pin mounting seat 91 and a sprung pin fixing block 92, and the sprung pin 93 is mounted on the sprung pin holder 9. A second limiting groove 94 and a second waist-shaped groove 95 are formed in the upper portion of the spring pin mounting seat 91, and the second limiting groove 94 is formed in the rear end face of the spring pin mounting seat 91 and is matched with the limiting convex portion 42. The second waist-shaped groove 95 is disposed on the front end surface of the spring pin mounting seat 91 and penetrates through the groove bottom of the second limiting groove 94. A fixing block mounting groove 96 is formed in the front end surface of the lower portion of the head spring pin mounting seat 91 along the length direction thereof. The spring pin fixing block 92 is disposed in the fixing block mounting groove 96 and is fixedly connected to a sidewall of the fixing mounting groove 96. A spring pin mounting hole is formed in the lower end face of the spring pin fixing block 92, and the upper end of the spring pin body 93 is inserted into the spring pin mounting hole.

As shown in fig. 4, the driving arm 5 includes an upper coupling boss 51, a lower coupling boss 52, and a link 53. The upper connecting shaft sleeve 51 and the lower connecting shaft sleeve 52 are respectively arranged on the bearing wheel 31 and the mechanical arm base 4, and are respectively hinged with the first convex shaft 32 on the bearing wheel 31 and the second convex shaft 41 on the mechanical arm base 4 through a second bearing 54. The opposite end faces of the upper connecting shaft sleeve 51 and the lower connecting shaft sleeve 52 are provided with a connecting rod hole and a notch 55, and the notch 55 is arranged along the axial direction perpendicular to the connecting rod hole and is communicated with the connecting rod hole. Screw holes 56 which are vertical and penetrate through the grooves are arranged on the side surfaces of the upper connecting shaft sleeve 51 and the lower connecting shaft sleeve 52. Both ends of the link 53 are respectively disposed in the upper link hole and the lower link hole for connecting the upper connection boss 51 and the lower connection boss 52. The upper connecting shaft sleeve 51 and the lower connecting shaft sleeve 52 can be arranged on the connecting rod 53 in a sliding mode, and are screwed with screws in the screw holes 56, the side wall of each connecting rod hole clamps the connecting rod 53, and therefore locking of the connecting rod 53 is achieved. The distance between the upper connecting shaft sleeve and the lower connecting shaft sleeve can be adjusted through the slots and the screws arranged in the screw holes.

The mechanical arm mechanisms are four groups and comprise a first mechanical arm mechanism and a second mechanical arm mechanism which are oppositely arranged in the vertical direction, a third mechanical arm mechanism and a fourth mechanical arm mechanism which are obliquely arranged are arranged on one side, away from the wire feeding mechanism, of the first mechanical arm mechanism and the second mechanical arm mechanism, and the first mechanical arm mechanism, the second mechanical arm mechanism, the third mechanical arm mechanism and the fourth mechanical arm mechanism are arranged on the main wall board and distributed in a K shape. The third mechanical arm mechanism and the fourth mechanical arm mechanism are symmetrically distributed on the main wall plate. The first mechanical arm and the second mechanical arm form limit in the vertical direction, and the third mechanical arm and the fourth mechanical arm form limit on the side surface.

The working process of the utility model is as follows:

the driving motor 2 receives a working instruction of a computer, the output end of the driving motor drives the reduction gearbox 6 to rotate, the reduction gearbox 6 drives the bearing wheel 31 to rotate, and the rear end face of the bearing wheel 31 is matched with the first bearing and rotates on the bearing seat 3. The first protruding shaft 32 on the bearing wheel 31 is transmitted to the connecting rod 53 through the upper connecting shaft sleeve 51, and because the first protruding shaft 32 is eccentrically arranged, the rotation can be converted into linear motion through the connecting rod 53 and the second protruding shaft 41, and the mechanical arm base 4 is driven to slide along the guide rail 72.

The upper connecting shaft sleeve 51 and the lower connecting shaft sleeve 52 are connected through a connecting rod 53, the two ends of the connecting rod 53 are in an unlocked state by screwing screws in screw holes 56, the length of the connecting rod 53 extending into the upper connecting rod hole and the lower connecting rod hole can be adjusted, the length of the force arm of the connecting rod 53 is adjusted, after the length is adjusted properly, the screws in the screw holes 56 are screwed, the side wall of the groove 55 is deformed, the connecting rod hole communicated with the groove 55 is matched with the connecting rod 33, the connecting rod 53 is clamped by the side wall of the connecting rod hole, and the length of the connecting rod 53 inserted into the upper connecting rod hole and the length of the lower connecting rod hole are locked.

The cutter 8 and the top spring pin 9 are both limited by the limiting groove on the cutter 8 and the limiting convex part 42 on the mechanical arm base 4, and the cutter 8 and the top spring pin 9 are fixed on the mechanical arm base 4 by the fixing screws penetrating through the waist-shaped groove and matching with the screw holes 43.

When the cutting-off action is needed, the computer simultaneously sends an action command to the driving motors of the four groups of mechanical arm mechanisms, and the driving motors of the four groups of mechanical arm mechanisms act to enable the spring jacking pins 9 to limit the spring steel wires and enable the cutter 8 to cut off the spring steel wires; after the cutting-off action is finished, the computer simultaneously sends a reset instruction to the driving motors of the four groups of mechanical arm mechanisms, and the four groups of mechanical arm mechanisms reset.

Compared with the prior art, the utility model provides a computer pressure spring machine arm mechanism has following advantage:

(1) the motor and mechanical arm structure is simple in structure and convenient to assemble, the transmission arm is respectively hinged with the bearing wheel and the mechanical arm base, the complexity of the motor and mechanical arm structure is greatly simplified, the difficulty of production assembly and later maintenance is greatly reduced, the product debugging efficiency is improved, and the production and maintenance cost is reduced;

(2) the transmission precision is high, the control is accurate, the motor is provided with the reduction box, the output end of the motor is connected with the eccentric wheel through the reduction box, the output torque of the motor is increased through the reduction box, and the output precision of the motor is improved; the mechanical arm base is arranged on the main wall board in a sliding mode through the guide rail assembly, so that the sliding stability of the mechanical arm base is improved; the upper connecting shaft sleeve and the lower connecting shaft sleeve of the connecting arm are hinged with the first convex shaft and the second convex shaft through the connecting bearings, the outer ring of the bearing is tightly held by the connecting shaft sleeves to eliminate the self-gap of the bearing, the precision and the stability of the linear motion of the tool rest sliding block driven by the eccentric wheel are greatly improved, and the stroke of the tool rest sliding block can be adjusted by pulling the connecting rod, so that the tool rest sliding block has more flexibility;

(3) the mechanical arm base is provided with a limiting convex part, the cutting knife and the spring-loaded pin are respectively provided with a first limiting groove and a second limiting groove which are matched with the limiting convex part, and different types of cutting tools can be arranged on the mechanical arm base through the limiting convex part and the limiting grooves in a matched mode, so that the cutting tools can be conveniently replaced according to needs, and the mechanical arm base has good adaptability and universality; the waist-shaped groove is formed in the limiting groove, so that the flexibility and the adaptability of the installation of the cutter and the mechanical arm base are improved;

(4) four group's arm mechanisms are the K font and distribute, and first, second arm mechanism sets up along vertical direction relatively, and third, fourth arm mechanism form spacing on vertical direction at one side symmetric distribution of first, second arm mechanism, and third, fourth arm mechanism forms spacing to the side, has good effect of cutting off.

The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.

Claims

1. The utility model provides a computer pressure spring machine arm mechanism which characterized in that includes:

the mechanical arm base is arranged on the front end face of the main wall plate in a sliding mode through a guide rail assembly; the lower end of the mechanical arm base is provided with a cutter which is detachably arranged; a second protruding shaft is arranged on the front end face of the mechanical arm base;

2. The mechanical arm mechanism of a computer compression spring machine according to claim 1, wherein the guide rail assembly comprises:

the sliding chute is arranged on the front end surface of the main wallboard;

the guide rail is fixedly arranged in the sliding groove;

3. The mechanical arm mechanism of a computer compression spring machine according to claim 1, wherein the transmission arm comprises:

4. The mechanical arm mechanism of the computer compression spring machine according to claim 3, wherein a limiting convex part is arranged at the lower end of the mechanical arm base, and a plurality of screw holes arranged side by side are formed in the limiting convex part;

5. The mechanical arm mechanism of a computer compression spring machine according to claim 4, wherein the cutter holder comprises:

the upper part of the cutter seat body is provided with a first limiting groove and a first waist-shaped groove, the first limiting groove is matched with the limiting convex part, and the first waist-shaped groove penetrates through the bottom of the first limiting groove; a cutter groove arranged along the length direction of the cutter seat is arranged on the front end surface of the lower part of the cutter seat; the outer side surfaces of the cutter and the pitch knife are matched with the cutter groove, the upper ends of the cutter and the pitch knife are arranged in the cutter groove, and the lower ends of the cutter and the pitch knife penetrate through the cutter groove;

6. The mechanical arm mechanism of a computer compression spring machine according to claim 5, wherein the cross sections of the cutting knife and the pitch knife are square.

7. The robotic arm mechanism of a computer compression spring machine according to claim 4, wherein said spring ejection pin holder comprises:

the top spring pin fixing block is arranged in the fixing block mounting groove and is fixedly connected with the side wall of the fixing block mounting groove; a top spring pin mounting hole is formed in the lower end face of the top spring pin fixing block;

the upper end of the top spring pin is inserted into the top spring pin mounting hole.

8. The computer pressure spring machine mechanical arm mechanism according to claim 1, wherein the mechanical arm mechanisms are four groups and comprise a first mechanical arm mechanism and a second mechanical arm mechanism which are oppositely arranged in the vertical direction, a third mechanical arm mechanism and a fourth mechanical arm mechanism which are obliquely arranged are arranged on one side, away from the wire feeding mechanism, of the first mechanical arm mechanism and the second mechanical arm mechanism, and the first mechanical arm mechanism, the second mechanical arm mechanism, the third mechanical arm mechanism and the fourth mechanical arm mechanism are arranged on the main wall plate and distributed in a K shape.

9. The mechanical arm mechanism of a computer compression spring machine according to claim 8, wherein the third mechanical arm mechanism and the fourth mechanical arm mechanism are symmetrically distributed on the main wall plate.

10. The mechanical arm mechanism of a computer pressure spring machine according to claim 1, wherein the reduction gearbox is a planetary reduction gearbox.