CN113751645A

CN113751645A - Precision gear extrusion molding system

Info

Publication number: CN113751645A
Application number: CN202110924893.9A
Authority: CN
Inventors: 宋林
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2021-12-07

Abstract

The invention discloses a precise gear extrusion molding system which comprises a fixed seat, wherein one side of the outer wall of the top of the fixed seat is fixedly connected with a supporting leg, the outer wall of one side of the supporting leg is fixedly connected with a lower die, the outer wall of the top of the lower die is provided with a lower die cavity, one side of the outer wall of the top of the fixed seat is fixedly connected with a supporting seat, the outer wall of one side of the supporting seat is provided with a fixing groove, the inner wall of the fixing groove is connected with a threaded block in a sliding manner, the outer wall of one side of the threaded block is fixedly connected with an upper die, the outer wall of the bottom of the upper die is provided with an upper die cavity, and the inner wall of the top of the upper die cavity and the inner wall of the bottom of the lower die cavity are both provided with discharge openings. The invention can effectively prevent the surface of the gear from being abraded due to larger demoulding force. The influence on the extrusion of the blank due to the adhesion of impurities on the surface of the blank is prevented, so that the deviation on the forming of the precision gear is prevented, and the deviation caused by the deviation of an upper die during moving and the extrusion forming of the gear is prevented.

Description

Precision gear extrusion molding system

Technical Field

The invention relates to the technical field of precision gear machining, in particular to a precision gear extrusion forming system.

Background

The traditional gear production method mainly comprises two types of cutting machining and plastic forming machining, but the existing industrial production still mainly adopts the cutting machining, and the material reduction gear machining method for removing the redundant metal materials has many defects, such as complex machining procedures, more required equipment and low material utilization rate; the cold extrusion method of the gear overcomes the defects, namely the cold extrusion method of putting a metal blank in a cold extrusion die cavity, applying pressure to the blank through a male die fixed on a press machine at room temperature to enable the metal blank to generate plastic deformation to manufacture a part, and forcing the blank to generate plastic deformation during extrusion, wherein the cold extrusion is one of the machining processes of parts without chips or with few chips.

When the existing device is used for extrusion forming of the gear, after the forming is finished, the formed gear needs to be subjected to demoulding treatment, but the gear is inlaid in the die cavity due to the extrusion, so that when the existing device is used for demoulding treatment of the gear, the surface of the gear is abraded due to external force, and the processing of the precision gear is influenced.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a precision gear extrusion molding system.

In order to achieve the purpose, the invention adopts the following technical scheme:

a precise gear extrusion molding system comprises a fixed seat, wherein one side of the outer wall of the top of the fixed seat is fixedly connected with a supporting leg, and the outer wall of one side of the supporting leg is fixedly connected with a lower die, the outer wall of the top of the lower die is provided with a lower die cavity, one side of the outer wall of the top of the fixed seat is fixedly connected with a supporting seat, and the outer wall of one side of the supporting seat is provided with a fixed groove, the inner wall of the fixed groove is connected with a thread block in a sliding way, the outer wall of one side of the thread block is fixedly connected with an upper die, an upper die groove is arranged on the outer wall of the bottom of the upper die, discharge openings are arranged on the inner wall of the top of the upper die groove and the inner wall of the bottom of the lower die groove, the outer wall of the bottom of the lower die is provided with an ejection mechanism, one side of the outer wall of the top of the fixed seat is fixedly connected with a supporting frame, and the outer wall of one side of the support frame is fixedly connected with a fixing frame, and the inner wall of the fixing frame is provided with a transmission mechanism.

Preferably, drive mechanism includes two sprocket and toothed chain, and the meshing between two sprocket and the toothed chain forms to rotate through the bearing between two sprocket and the mount and is connected, and the fixed cover of fixedly connected with second between one side outer wall of toothed chain and the last mould, the spout has been seted up to one side outer wall of mount, and the inner wall sliding connection of spout has the slide, the first fixed cover of fixedly connected with between slide and the toothed chain.

Preferably, one side of the outer wall of the top of the fixing seat is fixedly connected with two fixing rods, a balance plate is rotatably connected between the outer walls of the two opposite sides of the fixing rods through a bearing, a fixing shaft is connected between the balance plate and the sliding plate through a hinge, and an ejector block is fixedly connected to the outer wall of one side of the balance plate.

Preferably, the ejection mechanism comprises a spring and a supporting block, the supporting block is connected with the spring through a bolt, the spring is connected with the lower die through a bolt, an ejector rod is fixedly connected to the outer wall of the top of the supporting block, and one end of the ejector rod is located inside the discharge opening.

Preferably, the threaded hole is opened on the top outer wall of screw thread piece, and the inner wall threaded connection of screw hole has the threaded rod, forms to rotate through the bearing between threaded rod and the fixed slot and is connected, and there is the motor top outer wall of supporting seat through bolted connection, passes through bolted connection between motor and the threaded rod.

Preferably, the constant head tank has all been seted up at the both ends of supporting seat one side outer wall, and the equal sliding connection of inner wall of two constant head tanks has the locating piece, passes through bolted connection between locating piece and the last mould.

Preferably, an air bag is arranged between the balance plate and the fixed seat, the outer wall of one side of the air bag is connected with a guide pipe through a flange, and the guide pipe is J-shaped.

Preferably, the outer wall of one side of the guide pipe is connected with an air faucet through a flange, the air faucet is in a horn shape, and the outer wall of the bottom of the air faucet and the outer wall of the top of the lower die are located on the same horizontal plane.

The invention has the beneficial effects that:

1. through the arranged chain wheel, the toothed chain, the sliding plate, the fixed shaft, the balance plate, the jacking block, the supporting block, the spring and the ejector rod, when the gear is extruded and molded and the gear needs to be demoulded, the threaded rod is driven to rotate by the motor, so that the upper die is far away from the lower die, and when the upper die moves upwards, the second fixed sleeve can drive the toothed chain to ascend, so that the other side of the toothed chain drives the first fixed sleeve to move downwards, the sliding plate drives the balance plate to deviate towards one side, and the other side of the balance plate can tilt, at the moment, the jacking block can gradually approach the distance between the supporting block and the jacking block along with the tilting of the balance plate until the jacking block is contacted with the supporting block, and along with the rising of the position of the upper die, the force of the jacking block on the supporting block is gradually increased, when the acting force of the ejector rod on the gear is greater than the friction force between the gear and the lower die slot, the gear can be jacked from the inner part of the lower die slot along with the rising of the ejector rod, the demoulding treatment is carried out on the gear through the gradual increase of the extrusion pressure of the ejector rod, so that the abrasion of the surface of the gear caused by the large demoulding force can be effectively prevented, and the influence on the processing of the precise gear is further prevented;

2. through the gasbag that sets up, air cock and pipe, when the distance between upper die and the lower mould reduces gradually, the fixed cover of second can drive one side of tooth chain and move down this moment, and the opposite side of tooth chain can drive first fixed cover and move up, thereby make one side of balance plate shift, and one side of balance plate can compress the gasbag when shifting, at this moment, the inside gas of gasbag is erupted through pipe and air cock after compressing, thereby handle the impurity of adhesion on the stock through the air current that erupts, so as to carry out extrusion to the gear, prevent because the impurity adhesion causes the influence at the surface of stock to the extrusion of stock, thereby cause the deviation to the shaping of precision gear, simultaneously, can carry out cooling process to the stock through the air current, so as to improve the shaping effect of gear;

3. through constant head tank and the locating piece that sets up, can fix a position the processing to the moving direction of going up the mould to in the extrusion effect of improvement device to the stock, prevent because last mould takes place the skew when removing, thereby lead to the gear to produce the deviation when extrusion, and then cause the influence to the processing of gear.

Drawings

FIG. 1 is a schematic structural diagram of a precision gear extrusion molding system according to the present invention;

FIG. 2 is a schematic view of a partial structure of a precision gear extrusion molding system according to the present invention;

FIG. 3 is a schematic structural diagram of an ejection mechanism of a precision gear extrusion molding system according to the present invention;

FIG. 4 is a schematic view of a supporting seat structure of a precision gear extrusion molding system according to the present invention;

fig. 5 is a schematic diagram of an air bag structure of a precision gear extrusion molding system according to the present invention.

In the drawings: 1-a fixed seat; 2-a support frame; 3, a sliding plate; 4-a fixing frame; 5-a chute; 6-toothed chain; 7-upper die; 8-a support seat; 9-lower die cavity; 10-lower die; 11-a catheter; 12-support legs; 13-a sprocket; 14-a first fixing sleeve; 15-a second fixation sleeve; 16-a fixed shaft; 17-a balancing plate; 18-a fixation rod; 19-a top block; 20-a spring; 21-a support block; 22-a mandril; 23-a motor; 24-a fixed groove; 25-a threaded rod; 26-a thread block; 27-a positioning groove; 28-positioning blocks; 29-air bag; 30-air tap.

Detailed Description

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-5, a precision gear extrusion molding system comprises a fixed seat 1, wherein one side of the outer wall of the top of the fixed seat 1 is connected with a supporting leg 12 through a bolt, one side of the outer wall of the top of the supporting leg 12 is connected with a lower die 10 through a bolt, the outer wall of the top of the lower die 10 is provided with a lower die cavity 9, one side of the outer wall of the top of the fixed seat 1 is connected with a supporting seat 8 through a bolt, one side of the outer wall of the supporting seat 8 is provided with a fixing groove 24, the inner wall of the fixing groove 24 is connected with a threaded block 26 in a sliding manner, one side of the outer wall of the threaded block 26 is connected with an upper die 7 through a bolt, the outer wall of the bottom of the upper die 7 is provided with an upper die cavity, the inner wall of the top of the upper die cavity and the inner wall of the bottom of the lower die cavity 9 are both provided with discharge openings, the outer wall of the bottom of the lower die 10 is provided with an ejection mechanism, one side of the outer wall of the top of the fixed seat 1 is connected with a supporting frame 2 through a bolt, and the outer wall of one side of the support frame 2 is connected with a fixing frame 4 through a bolt, and the inner wall of the fixing frame 4 is provided with a transmission mechanism.

According to the invention, the transmission mechanism comprises two chain wheels 13 and a toothed chain 6, the two chain wheels 13 are meshed with the toothed chain 6, the two chain wheels 13 are rotatably connected with the fixed frame 4 through bearings, a second fixed sleeve 15 is connected between the outer wall of one side of the toothed chain 6 and the upper die 7 through bolts, a sliding groove 5 is formed in the outer wall of one side of the fixed frame 4, a sliding plate 3 is slidably connected to the inner wall of the sliding groove 5, and a first fixed sleeve 14 is connected between the sliding plate 3 and the toothed chain 6 through bolts.

In the invention, one side of the outer wall of the top of the fixed seat 1 is connected with two fixed rods 18 through bolts, a balance plate 17 is rotatably connected between the outer walls of the opposite sides of the two fixed rods 18 through bearings, a fixed shaft 16 is connected between the balance plate 17 and the sliding plate 3 through a hinge, and the outer wall of one side of the balance plate 17 is connected with a top block 19 through bolts.

In the invention, the ejection mechanism comprises a spring 20 and a supporting block 21, the supporting block 21 is connected with the spring 20 through a bolt, the spring 20 is connected with the lower die 10 through a bolt, the outer wall of the top of the supporting block 21 is connected with an ejector rod 22 through a bolt, and one end of the ejector rod 22 is positioned in the discharge opening.

In the invention, the outer wall of the top of the threaded block 26 is provided with a threaded hole, the inner wall of the threaded hole is in threaded connection with a threaded rod 25, the threaded rod 25 is in rotary connection with the fixed groove 24 through a bearing, the outer wall of the top of the supporting seat 8 is connected with a motor 23 through a bolt, and the motor 23 is connected with the threaded rod 25 through a bolt.

In the invention, positioning grooves 27 are formed in both ends of the outer wall of one side of the supporting seat 8, positioning blocks 28 are connected to the inner walls of the two positioning grooves 27 in a sliding manner, and the positioning blocks 28 are connected with the upper die 7 through bolts.

In the invention, an air bag 29 is arranged between a balance plate 17 and a fixed seat 1, the outer wall of one side of the air bag 29 is connected with a guide pipe 11 through a flange, the shape of the guide pipe 11 is J-shaped, when the distance between an upper die 7 and a lower die 10 is gradually reduced, at the moment, a second fixing sleeve 15 drives one side of a toothed chain 6 to move downwards, the other side of the toothed chain 6 drives a first fixing sleeve 14 to move upwards, so that one side of the balance plate 17 is deviated, one side of the balance plate 17 compresses the air bag 29 when the side is deviated, at the moment, air in the air bag 29 is compressed and then passes through the guide pipe 11, so that impurities adhered to a blank are treated through ejected air flow, the gear is conveniently extruded and formed, the influence on the extrusion of the blank due to the adhesion of the impurities on the surface of the blank is prevented, and the deviation is caused on the forming of a precision gear, meanwhile, the blank can be cooled through air flow, so that the forming effect of the gear is improved.

In the invention, the outer wall of one side of the conduit 11 is connected with the air tap 30 through a flange, the air tap 30 is in a horn shape, the outer wall of the bottom of the air tap 30 and the outer wall of the top of the lower die 10 are located on the same horizontal plane, and the horn-shaped air tap 30 can diffuse the air flow, so as to improve the treatment effect of the air flow on impurities.

The working principle is as follows: when the gear forming machine is used, a blank is placed inside the lower die cavity 9, the motor 23 is started, the motor 23 drives the threaded rod 25 to rotate, so that the threaded block 26 drives the upper die 7 to move downwards, when the upper die 7 is overlapped with the lower die 10, the blank is extruded, so that the gear is formed, when the distance between the upper die 7 and the lower die 10 is gradually reduced, the second fixing sleeve 15 drives one side of the toothed chain 6 to move downwards, the other side of the toothed chain 6 drives the first fixing sleeve 14 to move upwards, so that one side of the balance plate 17 is deviated, one side of the balance plate 17 compresses the air bag 29 when the distance is deviated, at the moment, air inside the air bag 29 is compressed and then is ejected through the guide pipe 11 and the air nozzle 30, so that impurities adhered to the blank are treated through ejected air flow, and the gear is extruded and formed, the influence on the extrusion of the blank due to the adhesion of impurities on the surface of the blank is prevented, so that the deviation is caused on the forming of the precision gear, meanwhile, the blank can be cooled through air flow, so that the forming effect of the gear is improved, when the gear needs to be subjected to demolding after being extruded and formed, the threaded rod 25 is driven to rotate through the motor 23, so that the upper die 7 is far away from the lower die 10, when the upper die 7 moves upwards, the second fixing sleeve 15 drives the toothed chain 6 to ascend, so that the other side of the toothed chain 6 drives the first fixing sleeve 14 to move downwards, the sliding plate 3 drives the balance plate 17 to deviate towards one side, the other side of the balance plate 17 tilts, at the moment, the jacking block 19 gradually approaches to the distance between the supporting block 21 along with the tilting of the balance plate 17 until the jacking block 19 contacts with the supporting block 21 and the position of the upper die 7 rises, ejector pad 19 is to supporting shoe 21 extruded dynamics crescent, when ejector pin 22 is greater than the frictional force between gear and the lower mould groove 9 to the effort of gear, the gear can be along with ejector pin 22's rising and from the inside jack-up of lower mould groove 9 to the completion is to the drawing of patterns of shaping back gear, carry out the drawing of patterns to the gear through the crescent of ejector pin 22 extrusion dynamics, can effectually prevent to cause wearing and tearing because the dynamics of drawing of patterns is great to the surface of gear, thereby cause the influence to the processing of precision gear.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A precise gear extrusion molding system comprises a fixing seat (1), wherein one side of the outer wall of the top of the fixing seat (1) is fixedly connected with a supporting leg (12), the outer wall of one side of the supporting leg (12) is fixedly connected with a lower die (10), the outer wall of the top of the lower die (10) is provided with a lower die groove (9), one side of the outer wall of the top of the fixing seat (1) is fixedly connected with a supporting seat (8), the outer wall of one side of the supporting seat (8) is provided with a fixing groove (24), the inner wall of the fixing groove (24) is slidably connected with a threaded block (26), the outer wall of one side of the threaded block (26) is fixedly connected with an upper die (7), the outer wall of the bottom of the upper die (7) is provided with an upper die groove, the inner wall of the top of the upper die groove and the inner wall of the bottom of the lower die groove (9) are both provided with discharge openings, the precise gear extrusion molding system is characterized in that the outer wall of the bottom of the lower die (10) is provided with an ejection mechanism, one side fixedly connected with support frame (2) of fixing base (1) top outer wall, and one side outer wall fixedly connected with mount (4) of support frame (2), the inner wall of mount (4) is provided with drive mechanism.

2. The extrusion forming system for the precision gear according to claim 1, wherein the transmission mechanism comprises two chain wheels (13) and a toothed chain (6), the two chain wheels (13) are meshed with the toothed chain (6), the two chain wheels (13) are rotatably connected with the fixed frame (4) through bearings, a second fixing sleeve (15) is fixedly connected between the outer wall of one side of the toothed chain (6) and the upper die (7), a sliding groove (5) is formed in the outer wall of one side of the fixed frame (4), a sliding plate (3) is slidably connected to the inner wall of the sliding groove (5), and a first fixing sleeve (14) is fixedly connected between the sliding plate (3) and the toothed chain (6).

3. The precise gear extrusion molding system according to claim 2, wherein two fixing rods (18) are fixedly connected to one side of the outer wall of the top of the fixing seat (1), a balance plate (17) is rotatably connected between the outer walls of the two fixing rods (18) at the opposite side through a bearing, a fixing shaft (16) is connected between the balance plate (17) and the sliding plate (3) through a hinge, and a top block (19) is fixedly connected to the outer wall of one side of the balance plate (17).

4. The precise gear extrusion molding system according to claim 1, wherein the ejection mechanism comprises a spring (20) and a support block (21), the support block (21) is connected with the spring (20) through a bolt, the spring (20) is connected with the lower die (10) through a bolt, a top rod (22) is fixedly connected to the outer wall of the top of the support block (21), and one end of the top rod (22) is located inside the discharge opening.

5. The precise gear extrusion molding system of claim 1, wherein a threaded hole is formed in the top outer wall of the threaded block (26), a threaded rod (25) is connected to the inner wall of the threaded hole in a threaded manner, the threaded rod (25) is rotatably connected with the fixed groove (24) through a bearing, a motor (23) is connected to the top outer wall of the supporting seat (8) through a bolt, and the motor (23) is connected with the threaded rod (25) through a bolt.

6. The precise gear extrusion molding system according to claim 1, wherein positioning grooves (27) are formed at two ends of the outer wall of one side of the supporting seat (8), positioning blocks (28) are connected to the inner walls of the two positioning grooves (27) in a sliding manner, and the positioning blocks (28) are connected with the upper die (7) through bolts.

7. A precision gear extrusion molding system as claimed in claim 3, wherein an air bag (29) is arranged between the balance plate (17) and the fixed seat (1), and a guide pipe (11) is connected to one side outer wall of the air bag (29) through a flange, and the shape of the guide pipe (11) is a J shape.

8. A precision gear extrusion molding system according to claim 7, wherein the air nozzle (30) is connected to one side outer wall of the conduit (11) through a flange, and the air nozzle (30) is in a trumpet shape, and the bottom outer wall of the air nozzle (30) and the top outer wall of the lower mold (10) are located on the same horizontal plane.