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

Abstract

The utility model relates to the technical field of injection molding oil cylinder assembling, and discloses a semi-automatic assembling system suitable for assembling injection molding parts of an injection molding machine, which comprises a workbench, a conveying line body for conveying an injection front plate and an assembling assembly, the assembling assembly comprises a first feeding part, an automatic holding and clamping turnover machine, a screw locking assembly, a second feeding part and a special holding and clamping machine which are sequentially arranged in the conveying direction of the conveying line body, and the screw locking assembly moves between the automatic holding and clamping turnover machine and the special holding and clamping machine in a reciprocating mode and is used for tightening screws; the first feeding part is used for placing a cylinder barrel, a rear cylinder cover and a screw on the injection front plate; the clamping automatic turnover machine can clamp or turn over the injection front plate; the second feeding part is used for placing a piston rod, a front cylinder cover and a screw on the injection front plate; according to the semi-automatic assembling system, the injection front plate is conveyed through the conveying line body, clamping, overturning and releasing of the injection front plate and tightening of screws are automatically conducted through the assembling assembly, the labor intensity is lowered, and meanwhile the product quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection cylinder assembly, in particular to a semi-automatic assembly system suitable for assembling injection parts of an injection molding machine. Background Art

[0002] The existing injection molding machine injection cylinder assembly is performed in a flat-lay mode. The cylinder rear cover and cylinder barrel are manually installed on the injection front plate, and then the rear cylinder cover screws are tightened. After the assembled semi-finished injection front plate is turned over, the piston rod and front cylinder cover are manually installed, and then the front cylinder cover screws are tightened. The finished parts can be transported to the subsequent process for other assembly.

[0003] The assembly actions involved in the injection cylinder assembly process, such as tightening screws, flipping and moving, are all done manually, which is labor-intensive and difficult to control quality. Utility Model Content

[0004] The utility model aims at the shortcomings of the prior art that the injection cylinder assembly has high labor intensity and is difficult to control quality, and provides a semi-automatic assembly system suitable for assembling injection parts of an injection molding machine.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine, comprising a workbench and:

[0007] A conveying line body, located on the workbench and used for conveying the injection front plate;

[0008] The assembly assembly includes a first feeding part, a clamping automatic turning machine, a screw locking assembly, a second feeding part and a clamping special machine which are sequentially arranged at intervals along the transmission direction of the conveyor line body. The screw locking assembly reciprocates between the clamping automatic turning machine and the clamping special machine to tighten the screws.

[0009] The first loading section places the cylinder barrel, rear cylinder cover and screws onto the injection front plate;

[0010] The clamping automatic flipping machine can clamp the injection front plate moved to its location, and after the locking screw assembly locks the rear cylinder cover, cylinder barrel and injection front plate, it flips and releases the injection front plate to the conveyor line body;

[0011] The second loading part places the piston rod, front cylinder cover and screws onto the injection front plate;

[0012] The clamping machine can clamp the injection front plate that has been moved to its location, and release the injection front plate onto the conveyor line body after the locking screw assembly has locked the front cylinder cover, piston rod and injection front plate.

[0013] With the above scheme, workers place the cylinder barrel, rear cylinder head and screws on the injection front plate for assembly in the first loading section, and convey the assembled injection front plate to the automatic clamping and flipping machine through the conveyor line body. The automatic clamping and flipping machine clamps the injection front plate, and the locking screw assembly moves to the top of the injection front plate, tightens the screws, and locks the rear cylinder head, cylinder barrel and injection front plate. Then the automatic clamping and flipping machine flips the injection front plate and releases the injection front plate onto the conveyor line body, and the conveyor line body conveys the injection front plate to the second loading section, and workers place the piston rod, front cylinder head and screws on the injection front plate for assembly. The conveyor line body conveys the assembled injection front plate to the special clamping machine, and the special clamping machine clamps the injection front plate, and the locking screw assembly moves to the top of the injection front plate, tightens the screws, and locks the front cylinder head, piston rod and injection front plate. Then the special clamping machine releases the injection front plate onto the conveyor line body, and the conveyor line body transmits it to the subsequent process for other assembly. The injection front plate is transmitted through the conveyor line, and the injection front plate is automatically clamped, flipped, released and screwed through the assembly assembly, which reduces labor intensity while ensuring product quality.

[0014] Preferably, the clamping automatic flipping machine includes a fixed frame, a lifting frame arranged to be lifted and lowered on the fixed frame, a first clamping part arranged on the lifting frame that can approach or move away from each other, and a flipping structure that drives the injection front plate clamped by the first clamping part to flip, and the lifting and lowering of the lifting frame is controlled by a lifting drive member.

[0015] By adopting the above scheme, the first clamping parts are close to each other to clamp the injection front plate. After the locking screw assembly tightens the screws, the lifting drive drives the lifting frame to rise, and the flipping structure drives the injection front plate to flip. After the injection front plate is flipped, the lifting drive drives the lifting frame to descend until the injection front plate falls onto the conveyor line body, and the first clamping parts move away from each other to detach from the injection front plate, releasing the injection front plate onto the conveyor line body.

[0016] Preferably, the first clamping portion includes two first driving arms arranged on the lifting frame for relative movement and a first clamping block arranged on opposite sides of the two first driving arms. The two first driving arms can move toward or away from each other synchronously and are controlled by the first synchronous driving portion.

[0017] By adopting the above scheme, the first synchronous driving unit drives the two first driving arms to approach synchronously, driving the two first clamping blocks to approach each other and clamp the injection front plate; conversely, the first synchronous driving unit drives the two first driving arms to move away synchronously, driving the two first clamping blocks to move away from each other and disengage from the injection front plate.

[0018] Preferably, the first synchronous driving unit includes a first gear rotatably arranged between the two first driving arms on the lifting frame and a first rack extending on the side opposite to the two first driving arms and meshing with the first gear. A first driving member connected to any one of the first driving arms and driving it to move is provided on the lifting frame.

[0019] By adopting the above scheme, the first driving member drives the first driving arm connected to it to move, and the first rack on the first driving arm moves accordingly, driving the first gear meshing with the first rack to rotate, driving the other first rack meshing with the other side of the first gear to move in the opposite direction, and driving the first driving arm connected to the first rack to move in the opposite direction, thereby realizing that the two first driving arms are approaching or moving away from each other.

[0020] Preferably, the flip structure includes a rotating shaft fixedly connected to the first clamping block and rotatably disposed on the first driving arm, and a rotating driving unit driving any one of the rotating shafts to rotate.

[0021] By adopting the above scheme, the rotating drive unit drives any one of the rotating shafts to rotate, thereby driving the first clamping block fixedly connected to the rotating shaft to rotate. Since the two first clamping blocks clamp the injection front plate, the rotation of any one of the first clamping blocks can drive the remaining first clamping blocks and the injection front plate to rotate synchronously, thereby realizing the flipping of the injection front plate.

[0022] Preferably, the rotating drive unit includes a driving wheel, a driven wheel and a synchronous belt tensioned on the two, the driving wheel is coaxially fixed to a driving motor, the driving motor is fixed to a first driving arm, and the driven wheel is coaxially fixed to the rotating shaft.

[0023] With the above solution, the driving motor drives the driving wheel to rotate, and drives the driven wheel to rotate through the synchronous belt, thereby driving the rotating shaft fixedly connected to the driven wheel to rotate.

[0024] Preferably, the clamping machine includes a bracket, a second clamping part arranged on the bracket that can approach or move away from each other, the second clamping part includes two second driving arms arranged on the bracket for relative movement and a second clamping block arranged on the opposite side of the two second driving arms, the two second driving arms can approach or move away synchronously and are controlled by the second synchronous driving part, the second synchronous driving part includes a second gear rotatably arranged on the bracket between the two second driving arms and a second rack extending on the opposite side of the two second driving arms and meshing with the second gear, and a second driving member connected to any one of the second driving arms and driving it to move is arranged on the bracket.

[0025] By adopting the above scheme, the second driving member drives the second driving arm connected to it to move, and the second rack on the second driving arm moves accordingly, driving the second gear meshing with the second rack to rotate, driving the other second rack meshing with the other side of the second gear to move in the opposite direction, and driving the second driving arm connected to the second rack to move in the opposite direction, so that the two second driving arms are moved closer to or farther away from each other, so that the two second clamps are moved closer to each other to clamp the injection front plate or moved away from each other to release the injection front plate.

[0026] Preferably, the screw locking assembly includes a robot that moves back and forth between the clamping automatic flipping machine and the clamping special machine, and a screw locking structure provided on the robot, and the movement of the robot is controlled by the seven axes of the robot.

[0027] By adopting the above scheme, the seven axes of the robot are fixedly installed along the running direction of the conveyor line, and the robot is controlled to move back and forth along the running direction of the conveyor line, thereby driving the screw locking structure to move back and forth between the automatic clamping flipping machine and the clamping special machine.

[0028] Preferably, the screw locking structure includes a fixed seat fixed on the robot, a movable seat movably arranged on the fixed seat, a driving rod rotatably arranged on the moving seat, a third driving member fixed on the moving seat for driving the driving rod to rotate, and a driving member arranged at an end of the driving rod away from the third driving member, which can be inserted into the top groove of the screw and drive the screw to rotate synchronously. The movement of the moving seat is controlled by a fourth driving member.

[0029] By adopting the above scheme, the movable seat can move and adjust the position of the driving component so that the driving component can be inserted into the flower groove at the top of the screw for cooperation. After the driving component is inserted into the flower groove at the top of the screw, the third driving component drives the driving rod to rotate, driving the screw to rotate synchronously to achieve the tightening of the screw.

[0030] Preferably, at least one group of the movable seat, the driving rod, the third driving member and the driving component is arranged on the fixed seat.

[0031] By adopting the above scheme, only one group is required to tighten the screws. When multiple groups are set, the movement of the movable seat can be controlled to adjust the spacing between adjacent movable seats so that the spacing matches the spacing between adjacent screws. Since each movable seat is provided with a driving rod, a third driving member and a driving component, multiple screws can be tightened at the same time, thereby speeding up the assembly time.

[0032] The utility model has significant technical effects due to the adoption of the above technical solutions: the conveyor line realizes the automatic transmission of the injection front plate, and the clamping automatic flipping machine clamps, flips and releases the injection front plate, the clamping special machine clamps and releases the injection front plate, and the locking screw assembly tightens the screws. The injection front plate is transmitted through the conveyor line, and the clamping, flipping, releasing and screw tightening of the injection front plate are automatically performed through the assembly assembly, which reduces labor intensity while ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of a semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to an embodiment;

[0034] Figure 2 and Figure 3It is an axonometric view of a clamping automatic flipping machine in a semi-automatic assembly system suitable for assembling injection parts of an injection molding machine in an embodiment;

[0035] Figure 4 and Figure 5 It is an axonometric view of a clamping machine in a semi-automatic assembly system suitable for assembling injection parts of an injection molding machine in an embodiment;

[0036] Figure 6 It is an axonometric view of an automatic screw locking module in a semi-automatic assembly system suitable for assembling injection parts of an injection molding machine in an embodiment.

[0037] The parts indicated by the numbers in the above figures are as follows: 1. workbench; 2. conveyor line; 3. first loading part; 4. clamping automatic turning machine; 401. fixed frame; 402. lifting frame; 403. lifting drive member; 404. first driving arm; 405. first clamping block; 406. first gear; 407. first rack; 408. first driving member; 409. rotating shaft; 410. driving wheel; 411. driven wheel; 412. synchronous Belt; 413, driving motor; 5, robot; 6, robot seven-axis; 7, screw locking structure; 701, fixed seat; 702, movable seat; 703, driving rod; 704, third driving member; 705, driving component; 8, second loading part; 9, clamping machine; 901, bracket; 902, second driving arm; 903, second clamping block; 904, second gear; 905, second rack; 906, second driving member; 10, injection front plate. DETAILED DESCRIPTION

[0038] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] Example

[0040] A semi-automatic assembly system suitable for assembling injection parts of injection molding machines, referring to Figures 1 to 6 , including a workbench 1, on which a conveyor line body 2 for transmitting an injection front plate 10 is disposed, and on the conveyor line body 2 a tooling tray is disposed, the tooling tray is used to place the injection front plate 10, and the tooling tray can be manually rotated to improve the convenience of assembly.

[0041] It also includes an assembly assembly, which includes a first feeding section 3, a clamping automatic flipping machine 4, a screw locking assembly, a second feeding section 8, and a clamping special machine 9, which are arranged in sequence along the transmission direction of the conveyor line 2. The screw locking assembly reciprocates between the clamping automatic flipping machine 4 and the clamping special machine 9 to tighten the screws. In the first feeding section 3, the worker places the cylinder barrel, the rear cylinder head, and the screws on the injection front plate 10 for assembly, and transmits the assembled injection front plate 10 to the clamping automatic flipping machine 4 through the conveyor line 2. The clamping automatic flipping machine 4 clamps the injection front plate 10, and the screw locking assembly moves to the top of the injection front plate 10, tightens the screws, and locks the rear cylinder head, the cylinder barrel, and the injection front plate 10. Then the clamping automatic flipping machine 4 flips the injection front plate 10 and releases the injection front plate 10 onto the tooling pallet. The conveyor line 2 injects the injection The front plate 10 is transferred to the second loading section 8, and the worker places the piston rod, the front cylinder cover and the screws on the injection front plate 10 for assembly. The conveyor line body 2 transfers the assembled injection front plate 10 to the clamping machine 9, which clamps the injection front plate 10, and the locking screw assembly moves to the top of the injection front plate 10, tightens the screws, and locks the front cylinder cover, the piston rod and the injection front plate 10. Then the clamping machine 9 releases the injection front plate 10 to the tooling pallet, and the conveyor line body 2 transfers it to the subsequent process for other assembly. The injection front plate 10 is transferred by the conveyor line body 2, and the clamping, flipping, releasing and screw tightening of the injection front plate 10 are automatically performed by the assembly assembly, which reduces labor intensity while ensuring product quality.

[0042] Reference Figure 1 , Figure 2 and Figure 3 The clamping automatic flipping machine 4 includes a fixed frame 401, and a lifting frame 402 is provided on the fixed frame 401 for lifting. The lifting of the lifting frame 402 is controlled by a lifting driving member 403, and the lifting driving member 403 is provided on the fixed frame 401. The lifting frame 402 is also provided with a first clamping part that can move closer to or farther away from each other and a flipping structure, and the flipping structure can drive the injection front plate 10 clamped by the first clamping part to flip. The first clamping parts move closer to each other to clamp the injection front plate 10 to avoid the twisting of the injection front plate 10 when tightening the screws. After the locking screw assembly tightens the screws, the lifting driving member 403 drives the lifting frame 402 to rise, and the flipping structure drives the injection front plate 10 to flip. After the injection front plate 10 flips, the lifting driving member 403 drives the lifting frame 402 to descend until the injection front plate 10 falls onto the tooling tray, and the first clamping parts move away from each other to disengage from the injection front plate 10, and release the injection front plate 10 onto the tooling tray, and are transmitted along the conveyor line body 2.

[0043] The first clamping part includes two first driving arms 404 arranged to move relatively on the lifting frame 402. The two first driving arms 404 can be synchronously moved closer or farther away, and their operation is controlled by the first synchronous driving part. First clamping blocks 405 are respectively arranged on opposite sides of the two first driving arms 404. The first synchronous driving part drives the two first driving arms 404 to move closer synchronously, driving the two first clamping blocks 405 to move closer to each other and clamp the injection front plate 10; conversely, the first synchronous driving part drives the two first driving arms 404 to move away synchronously, driving the two first clamping blocks 405 to move away from each other and detach from the injection front plate 10.

[0044] The first synchronous driving part includes a first gear 406 rotatably arranged on the lifting frame 402, and the first gear 406 is arranged between the two first driving arms 404, and first racks 407 meshing with the first gear 406 are respectively extended and arranged on opposite sides of the two first driving arms 404, and the two first racks 407 are respectively located on both sides of the first gear 406. A first driving member 408 connected to any one of the first driving arms 404 and driving it to move is also arranged on the lifting frame 402. The first driving member 408 drives the first driving arm 404 connected thereto to move, and the first rack 407 on the first driving arm 404 moves accordingly, driving the first gear 406 meshing with the first rack 407 to rotate, driving the other first rack 407 meshing with the other side of the first gear 406 to move in the opposite direction, and driving the first driving arm 404 connected to the first rack 407 to move in the opposite direction, that is, realizing that the two first driving arms 404 are close to or away from each other.

[0045] The flipping structure includes a rotating shaft 409 fixedly connected to the first clamping block 405 and rotatably arranged on the first driving arm 404, and a rotating driving unit driving any one of the rotating shafts 409 to rotate. The rotating driving unit drives any one of the rotating shafts 409 to rotate, driving the first clamping block 405 fixedly connected to the rotating shaft 409 to rotate. Since 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 remaining first clamping blocks 405 and the injection front plate 10 to rotate synchronously, thereby realizing the flipping of the injection front plate 10.

[0046] The rotation driving part includes a driving wheel 410, a driven wheel 411, and a synchronous belt 412 stretched between the two. The driving wheel 410 is coaxially fixed to a driving motor 413, the driving motor 413 is fixed to a first driving arm 404, and the driven wheel 411 is coaxially fixed to 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, thereby driving the rotating shaft 409 fixedly connected to the driven wheel 411 to rotate.

[0047] Reference Figure 1 , Figure 4 and Figure 5The clamping machine 9 includes a bracket 901, and the bracket 901 is provided with a second clamping part that can move closer or farther away from each other. The second clamping parts move closer to each other to clamp the injection front plate 10 to prevent the injection front plate 10 from twisting when tightening the screws. After the locking screw assembly tightens the screws, the second clamping parts move away from each other and detach from the injection front plate 10, releasing the injection front plate 10 onto the tooling tray and being transported along the conveyor line 2.

[0048] The second clamping part includes two second driving arms 902 arranged to move relatively on the bracket 901. The two second driving arms 902 can be synchronously moved closer or farther away, and their operation is controlled by the second synchronous driving part. Second clamping blocks 903 are respectively arranged on opposite sides of the two second driving arms 902. The second synchronous driving part drives the two second driving arms 902 to move closer synchronously, driving the two second clamping blocks 903 to move closer to each other, and clamping the injection front plate 10; conversely, the second synchronous driving part drives the two second driving arms 902 to move away synchronously, driving the two second clamping blocks 903 to move away from each other, and detaching from the injection front plate 10.

[0049] The second synchronous driving part includes a second gear 904 rotatably arranged on the bracket 901, and the second gear 904 is arranged between the two second driving arms 902, and second racks 905 meshing with the second gear 904 are respectively extended and arranged on opposite sides of the two second driving arms 902, and the two second racks 905 are respectively located on both sides of the second gear 904. A second driving member 906 connected to any second driving arm 902 and driving it to move is also arranged on the bracket 901. The second driving member 906 drives the second driving arm 902 connected thereto to move, and the second rack 905 on the second driving arm 902 moves accordingly, driving the second gear 904 meshing with the second rack 905 to rotate, driving the other second rack 905 meshing with the other side of the second gear 904 to move in the opposite direction, and driving the second driving arm 902 connected to the second rack 905 to move in the opposite direction, that is, realizing that the two second driving arms 902 are close to or away from each other.

[0050] Reference Figure 1 and Figure 6 The screw locking assembly includes a robot 5 that reciprocates between the clamping automatic flipping machine 4 and the clamping special machine 9. The movement of the robot 5 is controlled by the robot seventh axis 6. A screw locking structure 7 is provided on one end of the robot 5 away from the robot seventh axis 6. The robot seventh axis 6 is fixedly installed along the running direction of the conveyor line body 2, and controls the robot 5 to reciprocate along the running direction of the conveyor line body 2, thereby driving the screw locking structure 7 to reciprocate between the clamping automatic flipping machine 4 and the clamping special machine 9.

[0051] The screw locking structure 7 includes a fixed seat 701 fixedly arranged on the robot 5, and 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 member. A driving rod 703 is rotatably arranged on the movable seat 702, and 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. A driving component 705 is arranged at one end of the driving rod 703 away from the third driving member 704, and the driving component 705 can be inserted into the flower groove at the top of the screw and drive the screw to rotate synchronously. The movable seat 702 can adjust the position of the driving component 705 by movement, so that the driving component 705 can be inserted into the flower groove at the top of the screw for cooperation. After the driving component 705 is inserted into the flower groove at the top of the screw, the third driving member 704 drives the driving rod 703 to rotate, driving the screw to rotate synchronously, thereby tightening the screw.

[0052] At least one group of the movable seat 702, the driving rod 703, the third driving member 704 and the driving component 705 is provided on the fixed seat 701. One group can be provided to tighten the screws; when multiple groups are provided, the movable seat 702 can be controlled to move to adjust the spacing between adjacent movable seats 702 so that the spacing matches the spacing between adjacent screws. Since each movable seat 702 is provided with a driving rod 703, a third driving member 704 and a driving component 705, multiple screws can be tightened at the same time to speed up the assembly time. In this embodiment, two groups are provided.

[0053] In this embodiment, the lifting drive member 403, the first drive member 408 and the second drive member 906 can be a cylinder or an oil cylinder, and the third drive member 704 can be a motor. The cylinder, the oil cylinder and the motor are all existing technologies and are not described in detail here.

[0054] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine, comprising a workbench (1), characterized in that: Also includes: A conveying line body (2), located on the workbench (1) and used for conveying the injection front plate (10); The assembly assembly comprises a first feeding section (3), an automatic clamping turning machine (4), a screw locking assembly, a second feeding section (8) and a clamping special machine (9) which are arranged in sequence along the transmission direction of the conveyor line (2); the screw locking assembly reciprocates between the automatic clamping turning machine (4) and the clamping special machine (9) to tighten the screws; A first loading section (3) places the cylinder barrel, rear cylinder cover and screws onto the injection front plate (10); The clamping automatic flipping machine (4) can clamp the injection front plate (10) moved to its position, and after the locking screw assembly has locked the rear cylinder cover, the cylinder barrel and the injection front plate (10), flip and release the injection front plate (10) onto the conveying line body (2); The second loading part (8) places the piston rod, the front cylinder cover and the screws onto the injection front plate (10); The clamping machine (9) can clamp the injection front plate (10) moved to its position, and release the injection front plate (10) onto the conveying line body (2) after the locking screw assembly locks the front cylinder cover, the piston rod and the injection front plate (10).

2. A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to claim 1, characterized in that: The clamping automatic flipping machine (4) comprises a fixed frame (401), a lifting frame (402) arranged on the fixed frame (401) for lifting, a first clamping part arranged on the lifting frame (402) that can move closer to or farther away from each other, and a flipping structure that drives the injection front plate (10) clamped by the first clamping part to flip, and the lifting and lowering of the lifting frame (402) is controlled by a lifting drive member (403).

3. A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to claim 2, characterized in that: The first clamping part comprises two first driving arms (404) arranged on the lifting frame (402) for relative movement and a first clamping block (405) arranged on opposite sides of the two first driving arms (404). The two first driving arms (404) can be synchronously moved closer or farther away and are controlled by the first synchronous driving part.

4. A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to claim 3, characterized in that: The first synchronous driving unit includes a first gear (406) rotatably arranged between two first driving arms (404) on the lifting frame (402) and a first rack (407) extending on the opposite side of the two first driving arms (404) and meshing with the first gear (406). A first driving member (408) connected to any one of the first driving arms (404) and driving it to move is arranged on the lifting frame (402).

5. A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to claim 4, characterized in that: The flip structure comprises a rotating shaft (409) fixedly connected to the first clamping block (405) and rotatably arranged on the first driving arm (404), and a rotating driving part driving any one of the rotating shafts (409) to rotate.

6. A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to claim 5, characterized in that: The rotating driving part comprises a driving wheel (410), a driven wheel (411) and a synchronous belt (412) tensioned on the two. 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 semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to 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 moving away from each other, the second clamping part comprises two second driving arms (902) arranged on the bracket (901) for relative movement, and a second clamping block (903) arranged on the opposite side of the two second driving arms (902), the two second driving arms (902) can approach or move away synchronously and are controlled by a second synchronous driving part, the second synchronous driving part comprises a second gear (904) rotatably arranged between the two second driving arms (902) on the bracket (901) and a second rack (905) extending on the opposite side of the two second driving arms (902) and meshing with the second gear (904), and a second driving member (906) connected to any one of the second driving arms (902) and driving it to move is arranged on the bracket (901).

8. A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to claim 7, characterized in that: The screw locking assembly comprises a robot (5) that moves back and forth between an automatic clamping turning machine (4) and a clamping machine (9), and a screw locking structure (7) arranged on the robot (5). The movement of the robot (5) is controlled by the robot's seven axes (6).

9. A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to 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) for driving the driving rod (703) to rotate, and a driving member (705) arranged at one end of the driving rod (703) away from the third driving member (704) and capable of being inserted into a flower groove at the top of the screw and driving the screw to rotate synchronously. The movement of the movable seat (702) is controlled by a fourth driving member.

10. A semi-automatic assembly system suitable for assembling injection parts of an injection molding machine according to claim 9, characterized in that: At least one group of the movable seat (702), the driving rod (703), the third driving member (704) and the driving component (705) is arranged on the fixed seat (701).

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