CN222327283U - Semi-automatic assembly system suitable for injection part assembly of injection molding machine - Google Patents

Abstract

The utility model relates to the technical field of injection cylinder assembly, and discloses a semi-automatic assembly system suitable for injection part assembly of an injection molding machine, which comprises a workbench, a conveying line body for conveying an injection front plate and an assembly, wherein the assembly comprises a first feeding part, a clamping automatic overturning machine, a screw locking assembly, a second feeding part and a clamping special machine which are sequentially arranged along the conveying direction of the conveying line body, the screw locking assembly moves back and forth between the clamping automatic overturning machine and the clamping special machine and is used for screwing screws, the first feeding part is used for placing a cylinder barrel, a rear cylinder cover and the screws on the injection front plate, the clamping automatic overturning machine can clamp or overturn the injection front plate, the second feeding part is used for placing a piston rod, the front cylinder cover and the screws on the injection front plate, and the clamping special machine can clamp the injection front plate.

Description

Semi-automatic assembly system suitable for injection part assembly of injection molding machine

Technical Field

The utility model relates to the technical field of injection molding oil cylinder assembly, in particular to a semi-automatic assembly system suitable for assembly of injection components of an injection molding machine.

Background

The injection cylinder assembly of the injection molding machine in the prior art is carried out in a tiled mode, the rear cover and the cylinder barrel of the cylinder are manually installed on the injection front plate, then the screw of the rear cylinder cover is screwed, after the assembled semi-finished injection front plate is overturned, the piston rod and the front cylinder cover are manually installed, and then the screw of the front cylinder cover is screwed. The finished part can be conveyed to a subsequent process for other assembly.

The assembly actions such as tightening screws, overturning, carrying and the like involved in the assembly process of the injection cylinder are all completed manually, so that the labor intensity is high, and the quality control difficulty is high.

Disclosure of utility model

Aiming at the defects of high labor intensity and high quality control difficulty of the assembly of the injection cylinder in the prior art, the utility model provides a semi-automatic assembly system suitable for the assembly of injection parts of an injection molding machine.

In order to solve the technical problems, the utility model is solved by the following technical scheme:

a semi-automatic assembly system suitable for injection molding machine injection part assembly, includes the workstation, still includes:

the conveying line body is positioned on the workbench and used for conveying the injection front plate;

The assembly comprises a first feeding part, an automatic clamping turnover machine, a screw locking assembly, a second feeding part and a special clamping machine which are sequentially arranged at intervals along the transmission direction of the conveying line body, wherein the screw locking assembly moves back and forth between the automatic clamping turnover machine and the special clamping machine and is used for screwing screws;

the first feeding part is used for placing the cylinder barrel, the rear cylinder cover and the screws on the injection front plate;

The clamping automatic turnover machine can clamp the injection front plate moving to the clamping automatic turnover machine, and after the screw assembly is locked, the rear cylinder cover, the cylinder barrel and the injection front plate are turned over and the injection front plate is released to the conveying line body;

The second feeding part is used for placing the piston rod, the front cylinder cover and the screw on the injection front plate;

The special clamping machine can clamp the injection front plate moving to the clamping machine, and the screw assembly to be locked locks the front cylinder cover, the piston rod and the injection front plate and then releases the injection front plate to the conveying line body.

By adopting the scheme, a worker places the cylinder barrel, the rear cylinder cover and the screw on the injection front plate to be combined at the first feeding part, the combined injection front plate is conveyed to the clamping automatic overturning machine through the conveying line body, the clamping automatic overturning machine clamps the injection front plate, the screw locking assembly is moved to the upper part of the injection front plate, the screw is screwed down, the rear cylinder cover, the cylinder barrel and the injection front plate are locked, the clamping automatic overturning machine overturns the injection front plate and releases the injection front plate to the conveying line body, the conveying line body conveys the injection front plate to the second feeding part, the worker places the piston rod, the front cylinder cover and the screw on the injection front plate to be combined, the conveying line body conveys the combined injection front plate to the clamping special machine, the clamping special machine clamps the injection front plate, the screw locking assembly is moved to the upper part of the injection front plate, the screw is screwed down, the front cylinder cover, the piston rod and the injection front plate are locked, the clamping special machine releases the injection front plate to the conveying line body, and other assembly is carried out by the conveying line body. The injection front plate is conveyed through the conveying line body, and the clamping, overturning and releasing of the injection front plate and the screwing of the screw are automatically carried out through the assembly, so that the labor intensity is reduced, and meanwhile, the product quality is guaranteed.

Preferably, the automatic clamping turnover machine comprises a fixed frame, a lifting frame arranged on the fixed frame in a lifting manner, a first clamping part arranged on the lifting frame and capable of being mutually close to or far away from the lifting frame, and a turnover structure for driving the injection front plate clamped by the first clamping part to turn over, wherein the lifting of the lifting frame is controlled by a lifting driving piece.

By adopting the scheme, the first clamping parts mutually approach to the injection front plate, after the screw is screwed up by the screw locking assembly, the lifting driving part drives the lifting frame to ascend, the turnover structure drives the injection front plate to turn over, after the injection front plate turns over, the lifting driving part drives the lifting frame to descend to the injection front plate to fall onto the conveying line body, and the first clamping parts mutually depart from the injection front plate to release the injection front plate onto the conveying line body.

Preferably, the first clamping part comprises two first driving arms which are arranged on the lifting frame in a relatively moving way and a first clamping block which is arranged on one side opposite to the two first driving arms, and the two first driving arms can synchronously approach or depart from and are controlled by the first synchronous driving part.

By adopting the scheme, the first synchronous driving part drives the two first driving arms to synchronously approach to drive the two first clamping blocks to mutually approach to clamp the injection front plate, and otherwise, the first synchronous driving part drives the two first driving arms to synchronously depart from each other to drive the two first clamping blocks to separate from the injection front plate.

Preferably, the first synchronous driving part comprises a first gear rotatably arranged between the two first driving arms on the lifting frame and a first rack meshed with the first gear, wherein the first rack is arranged on one side opposite to the two first driving arms in an extending way, and the lifting frame is provided with a first driving piece connected with any one of the first driving arms and driving the first driving arm to move.

By adopting the scheme, the first driving piece drives the first driving arm connected with the first driving piece to move, the first rack on the first driving arm moves along with the first driving piece, the first gear meshed with the first rack is driven to rotate, the other first rack meshed with the other side of the first gear is driven to move reversely, and the first driving arm connected with the first rack is driven to move reversely, so that the two first driving arms are mutually close to or far away from each other.

Preferably, the overturning structure comprises a rotating shaft fixedly connected with the first clamping block and rotationally arranged on the first driving arm and a rotation driving part for driving any rotating shaft to rotate.

By adopting the scheme, the rotation driving part drives any rotating shaft to rotate and drives the first clamping blocks fixedly connected with the rotating shaft to rotate, and as the two first clamping blocks clamp the injection front plate, the rotation of any one first clamping block can drive the rest first clamping blocks and the injection front plate to synchronously rotate, so that the overturning of the injection front plate is realized.

Preferably, the rotation driving part comprises a driving wheel, a driven wheel and a synchronous belt which is tensioned on the driving wheel and the driven wheel, wherein the driving wheel is coaxially fixed on a driving motor, the driving motor is fixed on a first driving arm, and the driven wheel is coaxially fixed on a rotating shaft.

By adopting the scheme, the driving motor drives the driving wheel to rotate, and the synchronous belt drives the driven wheel to rotate, so that the rotating shaft fixedly connected with the driven wheel is driven to rotate.

Preferably, the special holding and clamping machine comprises a bracket, a second clamping part which is arranged on the bracket and can be mutually close to or far away from the bracket, the second clamping part comprises two second driving arms which are arranged on the bracket in a relative movement way and a second clamping block which is arranged on one side opposite to the two second driving arms, the two second driving arms can synchronously close to or far away from the bracket and are controlled by a second synchronous driving part, the second synchronous driving part comprises a second gear which is arranged on the bracket in a rotation way between the two second driving arms and a second rack which is arranged on one side opposite to the two second driving arms and is meshed with the second gear, and a second driving part which is connected with any one second driving arm and drives the second driving part to move is arranged on the bracket.

By adopting the scheme, the second driving piece drives the second driving arm connected with the second driving piece to move, the second rack on the second driving arm moves along with the second driving piece, the second gear meshed with the second rack is driven to rotate, the other second rack meshed with the other side of the second gear is driven to move reversely, and the second driving arm connected with the second rack is driven to move reversely, so that the two second driving arms are mutually close to or far away from each other, namely, the two second clamping blocks are mutually close to or far away from each other to clamp the injection front plate, and the injection front plate is released.

Preferably, the screw locking assembly comprises a robot which reciprocates between the clamping automatic overturning machine and the clamping special machine and a screw locking structure arranged on the robot, and the movement of the robot is controlled by seven shafts of the robot.

By adopting the scheme, the seven shafts of the robot are fixedly installed along the running direction of the conveying line body, and the robot is controlled to reciprocate along the running direction of the conveying line body, so that the screw locking structure is driven to reciprocate between the clamping automatic overturning machine and the clamping special machine.

Preferably, the screw locking structure comprises a fixed seat fixedly arranged on the robot, a movable seat movably arranged on the fixed seat, a driving rod rotatably arranged on the movable seat, a third driving piece fixedly arranged on the movable seat and driving the driving rod to rotate, and a driving part which is arranged at one end of the driving rod, far away from the third driving piece, and can be inserted into a screw top flower groove and drives the screw to synchronously rotate, wherein the movement of the movable seat is controlled by a fourth driving piece.

By adopting the scheme, the movable seat moves the position of the adjustable driving part, so that the driving part can be inserted into the flower groove at the top of the screw for matching, and after the driving part is inserted into the flower groove at the top of the screw, the third driving part drives the driving rod to rotate so as to drive the screw to synchronously rotate, thereby realizing the screwing of the screw.

Preferably, at least one group of the moving seat, the driving rod, the third driving piece and the driving part is arranged on the fixed seat.

By adopting the scheme, the screw can be screwed down by setting a group, when a plurality of groups are arranged, the movable seats can be controlled to move to adjust the distance between the adjacent movable seats, so that the distance accords with the distance between the adjacent screws, and as the driving rod, the third driving piece and the driving part are arranged on each movable seat, a plurality of screws can be screwed down simultaneously, and the assembly time is shortened.

The technical scheme has the remarkable technical effects that the conveying line body realizes automatic conveying of the injection front plate, the clamping, overturning and releasing of the injection front plate are carried out through the clamping automatic overturning machine, the clamping and releasing of the injection front plate are carried out through the clamping special machine, and the screw locking assembly is used for screwing screws. The injection front plate is conveyed through the conveying line body, and the clamping, overturning and releasing of the injection front plate and the screwing of the screw are automatically carried out through the assembly, so that the labor intensity is reduced, and meanwhile, the product quality is guaranteed.

Drawings

FIG. 1 is a schematic diagram of a semi-automatic assembly system suitable for use in assembling injection components of an injection molding machine in accordance with an embodiment;

FIGS. 2 and 3 are isometric views of a clamp automatic tilter in a semi-automatic assembly system adapted for assembly of injection components of an injection molding machine, in accordance with embodiments;

FIGS. 4 and 5 are isometric views of a clamp special machine in a semi-automatic assembly system for assembling injection components of an injection molding machine according to an embodiment;

Fig. 6 is an isometric view of an automatic locking screw module in a semi-automatic assembly system adapted for use in assembling injection components of an injection molding machine in accordance with an embodiment.

The parts indicated by the numerical references in the drawings are named as 1, a workbench, 2, a conveying line body, 3, a first feeding part, 4, a holding automatic turnover machine, 401, a fixed frame, 402, a lifting frame, 403, a lifting driving piece, 404, a first driving arm, 405, a first clamping block, 406, a first gear, 407, a first rack, 408, a first driving piece, 409, a rotating shaft, 410, a driving wheel, 411, a driven wheel, 412, a synchronous belt, 413, a driving motor, 5, a robot, 6, a robot seven-axis, 7, a screw locking structure, 701, a fixed seat, 702, a moving seat, 703, a driving rod, 704, a third driving piece, 705, a driving part, 8, a second feeding part, 9, a holding special machine, 901, a bracket, 902, a second driving arm, 903, a second clamping block, 904, a second gear, 905, a second rack, 906, a second driving piece, 10 and an injection front plate.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings and examples.

Examples

The semi-automatic assembly system suitable for injection part assembly of an injection molding machine, referring to fig. 1 to 6, comprises a workbench 1, a conveying line body 2 for conveying an injection front plate 10 is arranged on the workbench 1, a tooling pallet is arranged on the conveying line body 2 and used for placing the injection front plate 10, and the tooling pallet can be manually rotated, so that assembly convenience is improved.

Still including the equipment assembly, the equipment assembly includes along the automatic upset machine of clamp 4 of first material loading portion 3, armful clamp, lock screw assembly, second material loading portion 8 and armful clamp special plane 9 that transfer chain body 2 transmission direction interval set gradually, lock screw assembly reciprocating motion is in armful clamp between automatic upset machine 4 and armful clamp special plane 9 for screw tightening. The worker places the cylinder barrel, the rear cylinder cover and the screws on the injection front plate 10 at the first feeding part 3 for combination, the combined injection front plate 10 is conveyed to the clamping automatic overturning machine 4 through the conveying line body 2, the clamping automatic overturning machine 4 clamps the injection front plate 10, the screw locking assembly moves to the position above the injection front plate 10, the screws are screwed down, the rear cylinder cover, the cylinder barrel and the injection front plate 10 are locked, the clamping automatic overturning machine 4 overturns the injection front plate 10 and releases the injection front plate 10 on the tooling pallet, the conveying line body 2 conveys the injection front plate 10 to the second feeding part 8, the worker conveys the piston rod, the front cylinder cover and the screws on the injection front plate 10 for combination, the conveying line body 2 conveys the combined injection front plate 10 to the clamping special machine 9, the clamping special machine 9 clamps the injection front plate 10, the screw locking assembly moves to the position above the injection front plate 10, the screws are screwed down, the front, the piston rod and the injection front plate 10 are locked, the clamping special machine 9 releases the injection front plate 10 on the tooling pallet, and the conveying line body 2 conveys the combined injection front plate 10 to the tooling pallet for subsequent assembly for other working procedures. The injection front plate 10 is conveyed through the conveying line body 2, and the clamping, overturning, releasing and screwing of the screw of the injection front plate 10 are automatically carried out through the assembly, so that the labor intensity is reduced, and meanwhile, the product quality is ensured.

Referring to fig. 1, 2 and 3, the automatic clasping and overturning machine 4 comprises a fixing frame 401, a lifting frame 402 is arranged on the fixing frame 401 in a lifting manner, lifting of the lifting frame 402 is controlled by a lifting driving piece 403, and the lifting driving piece 403 is arranged on the fixing frame 401. The lifting frame 402 is further provided with a first clamping part and a turnover structure, wherein the first clamping part and the turnover structure can be mutually close to or far away from each other, and the turnover structure can drive the injection front plate 10 clamped by the first clamping part to turn over. The first clamping parts are mutually close to the injection front plate 10, so that the injection front plate 10 is prevented from twisting when screws are screwed, after the screw locking assembly screws the screws, the lifting driving part 403 drives the lifting frame 402 to ascend, the turnover structure drives the injection front plate 10 to turn over, after the injection front plate 10 turns over, the lifting driving part 403 drives the lifting frame 402 to descend until the injection front plate 10 falls onto the tooling pallet, the first clamping parts are mutually far away from the injection front plate 10, the injection front plate 10 is released onto the tooling pallet, and the tooling pallet is transmitted along with the conveying line body 2.

The first clamping part comprises two first driving arms 404 which are arranged on the lifting frame 402 in a relatively moving way, the two first driving arms 404 can synchronously approach or depart, the operation of the first clamping part is controlled by the first synchronous driving part, and a first clamping block 405 is respectively arranged on the opposite side of the two first driving arms 404. The first synchronous driving part drives the two first driving arms 404 to synchronously approach and drives the two first clamping blocks 405 to mutually approach and clamp the injection front plate 10, otherwise, the first synchronous driving part drives the two first driving arms 404 to synchronously depart and drives the two first clamping blocks 405 to mutually depart and separate from the injection front plate 10.

The first synchronous driving part comprises a first gear 406 rotatably arranged on the lifting frame 402, the first gear 406 is arranged between two first driving arms 404, first racks 407 meshed with the first gears 406 are respectively arranged on opposite sides of the two first driving arms 404 in an extending mode, and the two first racks 407 are respectively positioned on two sides of the first gear 406. The lifting frame 402 is further provided with a first driving member 408 connected to any one of the first driving arms 404 and driving it to move. The first driving member 408 drives the first driving arm 404 connected with the first driving member to move, the first rack 407 on the first driving arm 404 moves along with the first driving arm, drives the first gear 406 meshed with the first rack 407 to rotate, drives the other first rack 407 meshed with the other side of the first gear 406 to move reversely, and drives the first driving arm 404 connected with the first rack 407 to move reversely, namely, the two first driving arms 404 are close to or far away from each other.

The turnover structure comprises a rotating shaft 409 fixedly connected with the first clamping block 405 and rotatably arranged on the first driving arm 404, and a rotation driving part for driving any rotating shaft 409 to rotate. The rotation driving part drives any one of the rotating shafts 409 to rotate so as to drive the first clamping blocks 405 fixedly connected with the rotating shafts 409 to rotate, and as the two first clamping blocks 405 clamp the injection front plate 10, the rotation of any one of the first clamping blocks 405 can drive the rest of the first clamping blocks 405 and the injection front plate 10 to synchronously rotate so as to realize the overturning of the injection front plate 10.

The rotation driving part comprises a driving wheel 410, a driven wheel 411 and a synchronous belt 412 which is tensioned on the driving wheel 410 and the driven wheel 411, wherein the driving wheel 410 is coaxially fixed on a driving motor 413, the driving motor 413 is fixed on a first driving arm 404, and the driven wheel 411 is coaxially fixed on a rotating shaft 409. The driving motor 413 drives the driving wheel 410 to rotate, and drives the driven wheel 411 to rotate through the synchronous belt 412, so as to drive the rotating shaft 409 fixedly connected with the driven wheel 411 to rotate.

Referring to fig. 1, 4 and 5, the special holding and clamping machine 9 includes a bracket 901, and a second clamping part capable of approaching to or separating from each other is provided on the bracket 901. The second clamping parts are mutually close to the injection front plate 10, so that the injection front plate 10 is prevented from twisting when the screw is screwed, and after the screw is screwed by the screw locking assembly, the second clamping parts are mutually far away from the injection front plate 10, the injection front plate 10 is released onto the tooling pallet and is transmitted along with the conveying line body 2.

The second clamping part comprises two second driving arms 902 which are arranged on the bracket 901 in a relatively moving way, the two second driving arms 902 can synchronously approach or depart, the operation of the two second driving arms 902 is controlled by a second synchronous driving part, and second clamping blocks 903 are respectively arranged on the opposite sides of the two second driving arms 902. The second synchronous driving part drives the two second driving arms 902 to synchronously approach to drive the two second clamping blocks 903 to mutually approach to clamp the injection front plate 10, otherwise, the second synchronous driving part drives the two second driving arms 902 to synchronously depart from each other to drive the two second clamping blocks 903 to separate from the injection front plate 10.

The second synchronous driving portion includes a second gear 904 rotatably disposed on the bracket 901, and the second gear 904 is disposed between two second driving arms 902, and second racks 905 engaged with the second gear 904 are disposed on opposite sides of the two second driving arms 902 in an extending manner, and the two second racks 905 are disposed on two sides of the second gear 904. A second driving member 906 connected to any one of the second driving arms 902 and driving it to move is also provided on the bracket 901. The second driving piece 906 drives the second driving arm 902 connected with the second driving piece to move, the second rack 905 on the second driving arm 902 moves along with the second driving piece, the second gear 904 meshed with the second rack 905 is driven to rotate, the other second rack 905 meshed with the other side of the second gear 904 is driven to move reversely, and the second driving arm 902 connected with the second rack 905 is driven to move reversely, namely, the two second driving arms 902 are moved close to or away from each other.

Referring to fig. 1 and 6, the screw locking assembly comprises a robot 5 reciprocally moving between an automatic clamping turnover machine 4 and a special clamping machine 9, wherein the movement of the robot 5 is controlled by a robot seven-shaft 6, and a screw locking structure 7 is arranged at one end of the robot 5 away from the robot seven-shaft 6. Seven 6 fixed mounting of robot along transfer chain body 2 direction of operation, control robot 5 along transfer chain body 2 direction of operation reciprocating motion to drive screw locking structure 7 reciprocating motion is in embracing and presss from both sides automatic upset machine 4 and embracing and press from both sides special plane 9.

The screw locking structure 7 comprises a fixed seat 701 fixedly arranged on the robot 5, a movable seat 702 is movably arranged on the fixed seat 701, and the movement of the movable seat 702 is controlled by a fourth driving piece. The movable seat 702 is rotatably provided with a driving rod 703, the rotation of the driving rod 703 is controlled by a third driving member 704, and the third driving member 704 is fixedly arranged on the movable seat 702. The end of the driving rod 703 remote from the third driving member 704 is provided with a driving member 705, and the driving member 705 is inserted into the recess in the top of the screw and drives the screw to rotate synchronously. The movable seat 702 moves to adjust the position of the driving part 705, so that the driving part 705 can be inserted into the screw top flower groove to be matched, and after the driving part 705 is inserted into the screw top flower groove, the third driving part 704 drives the driving rod 703 to rotate, so that the screw is driven to synchronously rotate, and the screw is screwed.

At least one group of moving seat 702, driving rod 703, third driving member 704 and driving member 705 are disposed on the fixed seat 701. When a plurality of groups are arranged, the moving seats 702 can be controlled to move to adjust the interval between the adjacent moving seats 702, so that the interval is consistent with the interval between the adjacent screws, and as each moving seat 702 is provided with the driving rod 703, the third driving piece 704 and the driving part 705, a plurality of screws can be screwed at the same time, so that the assembly time is shortened, and two groups are arranged in the embodiment.

In this embodiment, the lifting driving member 403, the first driving member 408 and the second driving member 906 may be an air cylinder or an oil cylinder, and the third driving member 704 may be a motor, which are all in the prior art, and are not described herein.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. The semi-automatic assembly system suitable for the assembly of injection parts of an injection molding machine comprises a workbench (1) and is characterized by further comprising:

The conveying line body (2) is positioned on the workbench (1) and is used for conveying the injection front plate (10);

The assembly comprises a first feeding part (3), an automatic clamping turnover machine (4), a screw locking assembly, a second feeding part (8) and a special clamping machine (9) which are sequentially arranged at intervals along the transmission direction of the conveying line body (2), wherein the screw locking assembly moves back and forth between the automatic clamping turnover machine (4) and the special clamping machine (9) and is used for screwing screws;

a first feeding part (3) for placing the cylinder barrel, the rear cylinder cover and the screws on the injection front plate (10);

The clamping automatic turnover machine (4) can clamp the injection front plate (10) moving to the clamping automatic turnover machine, and after the screw assembly is locked, the rear cylinder cover, the cylinder barrel and the injection front plate (10) are turned over and the injection front plate (10) is released to the conveying line body (2);

A second feeding part (8) for placing the piston rod, the front cylinder cover and the screw on the injection front plate (10);

The clamping special machine (9) can clamp the injection front plate (10) moving to the clamping special machine, and the screw assembly to be locked locks the front cylinder cover, the piston rod and the injection front plate (10) and then releases the injection front plate (10) to the conveying line body (2).

2. A semiautomatic assembling system for assembling injection components of an injection molding machine, as set forth in claim 1, characterized in that the holding and clamping automatic turnover machine (4) comprises a fixing frame (401), a lifting frame (402) arranged on the fixing frame (401) in a lifting manner, a first clamping part arranged on the lifting frame (402) and capable of being mutually close to or far away from each other, and a turnover structure for driving the injection front plate (10) clamped by the first clamping part to turn over, wherein the lifting of the lifting frame (402) is controlled by a lifting driving piece (403).

3. A semiautomatic assembling system for assembling injection components of an injection molding machine according to claim 2, wherein the first clamping portion comprises two first driving arms (404) disposed on the lifting frame (402) and a first clamping block (405) disposed on opposite sides of the two first driving arms (404), and the two first driving arms (404) can be synchronously moved closer to or farther from and controlled by the first synchronous driving portion.

4. A semiautomatic assembling system for injection units of injection molding machine according to claim 3, wherein the first synchronous driving part comprises a first gear (406) rotatably disposed between two first driving arms (404) on the lifting frame (402) and a first rack (407) engaged with the first gear (406) and extended on the opposite side of the two first driving arms (404), and a first driving member (408) connected with any one of the first driving arms (404) and driving it to move is disposed on the lifting frame (402).

5. The semiautomatic assembling system for assembling injection components of an injection molding machine according to claim 4, wherein the turnover structure comprises a rotating shaft (409) fixedly connected with the first clamping block (405) and rotatably arranged on the first driving arm (404), and a rotation driving part for driving any one of the rotating shafts (409) to rotate.

6. A semiautomatic assembling system for assembling injection components of an injection molding machine according to claim 5, wherein the rotary driving part comprises a driving wheel (410), a driven wheel (411) and a synchronous belt (412) stretched on both, the driving wheel (410) is coaxially fixed on a driving motor (413), the driving motor (413) is fixed on a first driving arm (404), and the driven wheel (411) is coaxially fixed on a rotating shaft (409).

7. A semiautomatic assembling system for assembling injection components of an injection molding machine, as set forth in claim 6, characterized in that the clamping machine (9) comprises a bracket (901), a second clamping part arranged on the bracket (901) and capable of approaching or separating from each other, the second clamping part comprises two second driving arms (902) arranged on the bracket (901) in a relatively moving way and a second clamping block (903) arranged on one side opposite to the two second driving arms (902), the two second driving arms (902) can synchronously approach or separate from each other and are controlled by a second synchronous driving part, the second synchronous driving part comprises a second gear (904) arranged on the bracket (901) in a rotating way between the two second driving arms (902) and a second rack (905) which is arranged on one side opposite to the two second driving arms (902) and meshed with the second gear (904), and a second driving piece (906) connected with any one second driving arm (902) and driving the second driving piece to move is arranged on the bracket (901).

8. A semi-automatic assembly system for assembling injection components of an injection molding machine according to claim 7, wherein the screw locking assembly comprises a robot (5) which reciprocates between a clamping automatic overturning machine (4) and a clamping special machine (9) and a screw locking structure (7) arranged on the robot (5), and the movement of the robot (5) is controlled by a seven-axis robot (6).

9. A semiautomatic assembling system for assembling injection components of an injection molding machine, as set forth in claim 8, characterized in that the screw locking structure (7) comprises a fixed seat (701) fixedly arranged on the robot (5), a movable seat (702) movably arranged on the fixed seat (701), a driving rod (703) rotatably arranged on the movable seat (702), a third driving member (704) fixedly arranged on the movable seat (702) and driving the driving rod (703) to rotate, and a driving member (705) which is arranged at one end of the driving rod (703) far from the third driving member (704) and can be inserted into a groove at the top of a screw and driving the screw to synchronously rotate, wherein the movement of the movable seat (702) is controlled by a fourth driving member.

10. A semi-automatic assembly system for injection components of an injection molding machine according to claim 9, wherein at least one set of the movable base (702), the driving rod (703), the third driving member (704) and the driving component (705) is provided on the fixed base (701).