CN218519056U - Injection molding machine both arms manipulator - Google Patents

Abstract

The utility model discloses an injection molding machine both arms manipulator, including the connection pad, the body frame, the regulating arm, the crossbeam, first mounting bracket, first arm, second arm, the carousel, coupling assembling and spacing groove, the top fixedly connected with body frame of connection pad, the top fixedly connected with motor of body frame inner wall, the output of motor runs through body frame and fixedly connected with lead screw, and the outside threaded connection of lead screw has the regulating arm, and the inside of regulating arm is rotated and is connected with the swing arm, the utility model discloses because the both ends of carousel are provided with first chuck and second chuck respectively, and set up the carousel on first arm and second arm, can adjust the position of first chuck and second chuck according to the user demand, can adapt to different processing demands, are favorable to the flexibility that the improve equipment used, use through spacing groove cooperation first T type piece and second T type piece, can carry out quick dismouting to first arm and second arm to make things convenient for the staff to operate.

Description

Injection molding machine both arms manipulator

Technical Field

The utility model belongs to both arms manipulator field specifically is an injection molding machine both arms manipulator.

Background

The double-arm mechanical arm has very big effect in automatic industrial production, can accelerate work speed, improve work efficiency and reduce advantages such as labour, be the automatic apparatus that is indispensable among the automatic industrial production, but current double-arm mechanical arm is inconvenient when using to be changed the chuck according to the user demand to lead to the flexibility of equipment relatively poor, and the dismouting of mechanical arm is more troublesome on the current equipment, and inconvenient staff operates.

Disclosure of Invention

The utility model aims at providing an injection molding machine both arms manipulator in order to solve above-mentioned problem, solved the problem of mentioning in the background art.

In order to solve the above problem, the utility model provides a technical scheme:

a double-arm manipulator of an injection molding machine comprises a connecting disc, a main frame, an adjusting arm, a cross beam, a first mounting frame, a first mechanical arm, a second mechanical arm, a turntable, a connecting assembly and a limiting groove, the top of the connecting disc is fixedly connected with a main frame, the top of the inner wall of the main frame is fixedly connected with a motor, the output end of the motor penetrates through the main frame and is fixedly connected with a screw rod, the outer part of the screw rod is in threaded connection with an adjusting arm, the inner part of the adjusting arm is rotatably connected with a swing arm, the central shaft of the swing arm penetrates through the adjusting arm and is fixedly connected with a cross beam, a first mounting frame is connected inside the cross beam in a sliding manner, a first T-shaped block is detachably connected inside the first mounting frame, a first mechanical arm is connected in the first T-shaped block in a sliding manner, a second mounting frame is connected in the cross beam in a sliding manner and positioned on one side of the first mounting frame, a second T-shaped block is detachably connected inside the second mounting frame, a second mechanical arm is connected inside the second T-shaped block in a sliding manner, the bottom ends of the first mechanical arm and the second mechanical arm respectively extend to the lower parts of the first mounting rack and the second mounting rack, the outer parts of the first mechanical arm and the second mechanical arm are both rotationally connected with a turntable, one end of the turntable is detachably connected with a first chuck, one end of the turntable, which is far away from the first chuck, is detachably connected with a second chuck, the top of the first mounting frame is fixedly connected with a fourth cylinder, the top of the second mounting frame is fixedly connected with a fifth air cylinder, the bottom ends of the fourth air cylinder and the fifth air cylinder respectively penetrate through the first mounting frame and the second mounting frame and are fixedly connected with a connecting assembly, limiting grooves are formed in the first T-shaped block and the second T-shaped block at equal internal distances, and limiting assemblies are arranged inside the first mounting frame and the second mounting frame.

As a preferred scheme of the utility model, the inside sliding connection of body frame has the montant, the body frame is run through on the top of montant and with regulating arm bottom fixed connection.

As a preferred scheme of the utility model, one side of motor is rotated and is connected with first cylinder, the top of first cylinder is rotated with the bottom of swing arm and is connected.

As a preferred scheme of the utility model, the outside one side fixedly connected with second cylinder that just is close to the motor of crossbeam, the one end of second cylinder run through the crossbeam and with one side fixed connection of first mounting bracket, the outside one side fixedly connected with third cylinder of just keeping away from the motor of crossbeam, one side fixed connection that the crossbeam just kept away from first mounting bracket with the second mounting bracket is run through to the one end of third cylinder.

As a preferred scheme of the utility model, the cross slot has all been seted up to the both sides of crossbeam inner wall, the equal symmetry fixedly connected with slider in outside of first mounting bracket and second mounting bracket, every the one end of slider all extends to inside the cross slot, just slider and cross slot sliding connection.

As a preferred scheme of the utility model, the inside arc wall of having seted up of carousel, the equal fixedly connected with fixed axle in outside of first arm and second arm, two inside the one end of fixed axle all extends to the arc wall that corresponds, two the inside equal threaded connection of carousel has positioning bolt, two positioning bolt's one end runs through the carousel respectively and contacts with the outer wall of first arm and second arm.

As a preferred scheme of the utility model, coupling assembling includes connecting plate, screw rod, picture peg and nut, first mounting bracket and second mounting bracket and fixedly connected with connecting plate, every are run through respectively to the bottom of fourth cylinder and fifth cylinder the equal fixedly connected with screw rod in bottom of connecting plate, two the equal sliding connection in outside of screw rod has the picture peg, two the screw rod is outside and be located the picture peg under equal threaded connection have the nut.

As a preferred scheme of the utility model, the outside of first arm and second arm just is located the fixed box of the equal fixedly connected with in one side of picture peg, two the one end of picture peg extends to inside the fixed box respectively.

As a preferred scheme of the utility model, spacing subassembly includes mounting groove, horizontal pole, spring, through-hole and spacing hook, the mounting groove has all been seted up under first T type piece and second T type piece inside and being located of first mounting bracket and second mounting bracket, the inside equal sliding connection in mounting groove has the horizontal pole, two the equal fixedly connected with spring in one side of mounting groove inner wall, the one end of spring and the one end fixed connection of horizontal pole, the through-hole has all been seted up to first mounting bracket and second mounting bracket inside, the inside equal sliding connection in through-hole has spacing hook, the one end of spacing hook extend to the mounting groove inside and with horizontal pole fixed connection, the one end that the horizontal pole was kept away from to spacing hook extends to respectively in the inside spacing groove of first T type piece and second T type piece.

The utility model has the advantages that: because the both ends of carousel are provided with first chuck and second chuck respectively, and set up the carousel on first arm and second arm, can adjust the position of first chuck and second chuck according to the user demand, can adapt to different processing demands, be favorable to the flexibility that the improve equipment used, use through spacing groove cooperation first T type piece and second T type piece, can carry out quick assembly disassembly to first arm and second arm, thereby make things convenient for the staff to operate.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view illustrating the connection between the second robot arm and the second mounting frame;

FIG. 3 is an enlarged view of the present invention at A in FIG. 1;

fig. 4 is a schematic view illustrating the connection between the first mounting bracket and the first T-shaped block according to the present invention;

figure 5 is an enlarged view of the utility model at B in figure 2;

fig. 6 is a cross-sectional view of a second mounting bracket of the present invention;

fig. 7 is an enlarged view of the present invention at C in fig. 6.

In the figure: 1. a connecting disc; 2. a main frame; 3. a motor; 4. a screw rod; 5. an adjusting arm; 6. a vertical rod; 7. swinging arms; 8. a first cylinder; 9. a cross beam; 10. a first mounting bracket; 11. a second cylinder; 12. a first T-shaped block; 13. a first robot arm; 14. a second mounting bracket; 15. a third cylinder; 16. a second T-shaped block; 17. a second mechanical arm; 18. a transverse groove; 19. a slider; 20. a turntable; 21. a first chuck; 22. a second chuck; 23. an arc-shaped slot; 24. a fixed shaft; 25. positioning a bolt; 26. a fourth cylinder; 27. a fifth cylinder; 28. a fixing box; 29. a connection assembly; 291. a connecting plate; 292. a screw; 293. inserting plates; 294. a nut; 30. a limiting groove; 31. a limiting component; 311. mounting grooves; 312. a cross bar; 313. a spring; 314. a through hole; 315. and a limiting hook.

The specific implementation mode is as follows:

as shown in fig. 1 to 7, the following technical solutions are adopted in the present embodiment:

example (b):

a double-arm manipulator of an injection molding machine comprises a connecting disc 1, a main frame 2, an adjusting arm 5, a cross beam 9, a first mounting frame 10, a first mechanical arm 13, a second mechanical arm 17, a rotary disc 20, a connecting assembly 29 and a limiting groove 30, wherein the main frame 2 is fixedly connected to the top of the connecting disc 1, a motor 3 is fixedly connected to the top of the inner wall of the main frame 2, the output end of the motor 3 penetrates through the main frame 2 and is fixedly connected with a lead screw 4, the adjusting arm 5 is in threaded connection with the outer portion of the lead screw 4, the height of the adjusting arm 5 can be adjusted by matching the lead screw 4 through the motor 3, the height of the cross beam 9 can be changed according to use requirements, the use range of equipment is favorably improved, a swing arm 7 is rotatably connected to the inside of the adjusting arm 5, the central shaft of the swing arm 7 penetrates through the adjusting arm 5 and is fixedly connected with the cross beam 9, the cross beam 9 can be driven to rotate, different use angles are met, the first mounting frame 10 is slidably connected to the inside of the cross beam 9, the inside of the first mounting frame 10 is detachably connected with a first T-shaped block 12, the inside of the first T-shaped block 12 is slidably connected with a first mechanical arm 13, the first mechanical arm 13 can be driven to move inside the cross beam 9, one side of the inside of the cross beam 9, which is positioned on the first mounting frame 10, is slidably connected with a second mounting frame 14, the inside of the second mounting frame 14 is detachably connected with a second T-shaped block 16, the inside of the second T-shaped block 16 is slidably connected with a second mechanical arm 17, the second mechanical arm 17 can be driven to move inside the cross beam 9, so that the first mechanical arm 13 and the second mechanical arm 17 can independently move, different working effects can be realized, the bottom ends of the first mechanical arm 13 and the second mechanical arm 17 respectively extend to the lower parts of the first mounting frame 10 and the second mounting frame 14, the outsides of the first mechanical arm 13 and the second mechanical arm 17 are both rotatably connected with a turntable 20, one end of the rotary disc 20 can be dismantled and be connected with first chuck 21, the one end that first chuck 21 was kept away from to rotary disc 20 can be dismantled and be connected with second chuck 22, can adjust the position of first chuck 21 and second chuck 22 according to the user demand, can adapt to different processing demands, be favorable to the flexibility that the improve equipment used, the top fixedly connected with fourth cylinder 26 of first mounting bracket 10, the top fixedly connected with fifth cylinder 27 of second mounting bracket 14, first mounting bracket 10 and second mounting bracket 14 and fixedly connected with coupling assembling 29 are run through respectively to the bottom of fourth cylinder 26 and fifth cylinder 27, spacing groove 30 has been seted up to the inside impartial distance of first T type piece 12 and second T type piece 16, can use with the cooperation of spacing hook 315, thereby fix first T type piece 12 and second T type piece 16, the inside spacing subassembly mounting bracket 31 that all is provided with of first mounting bracket 10 and second T type piece 14.

Furthermore, the main frame 2 is connected with a vertical rod 6 in a sliding mode, the top end of the vertical rod 6 penetrates through the main frame 2 and is fixedly connected with the bottom of the adjusting arm 5, and the adjusting arm 5 can be limited, so that the adjusting arm is prevented from rotating at the top of the main frame 2 when moving.

Further, one side of motor 3 rotates and is connected with first cylinder 8, and the top of first cylinder 8 rotates with the bottom of swing arm 7 to be connected, through the flexible of first cylinder 8, can cooperate swing arm 7 to drive crossbeam 9 and rotate to satisfy different work demands.

Further, the crossbeam 9 is outside and be close to one side fixedly connected with second cylinder 11 of motor 3, the one end of second cylinder 11 run through crossbeam 9 and with one side fixed connection of first mounting bracket 10, one side fixedly connected with third cylinder 15 of motor 3 is just kept away from to the outside of crossbeam 9, the one end of third cylinder 15 run through crossbeam 9 and with one side fixed connection that first mounting bracket 10 was kept away from to second mounting bracket 14, can drive first mounting bracket 10 and second mounting bracket 14 and independently move in crossbeam 9 is inside, thereby make first arm 13 and second arm 17 realize different work effects.

Further, transverse groove 18 has all been seted up to the both sides of crossbeam 9 inner wall, the equal symmetry fixedly connected with slider 19 in outside of first mounting bracket 10 and second mounting bracket 14, and inside the one end of every slider 19 all extended to transverse groove 18, and slider 19 and transverse groove 18 sliding connection can restrict the position of first mounting bracket 10 and second mounting bracket 14, stability when being favorable to improving the removal.

Further, arc-shaped groove 23 has been seted up to carousel 20 inside, the equal fixedly connected with fixed axle 24 in the outside of first arm 13 and second arm 17, the one end of two fixed axles 24 all extends to inside the corresponding arc-shaped groove 23, the equal threaded connection in two carousel 20 has positioning bolt 25, the one end of two positioning bolt 25 runs through carousel 20 respectively and contacts with the outer wall of first arm 13 and second arm 17, can fix a position carousel 20 through arc-shaped groove 23 cooperation fixed axle 24, thereby make first chuck 21 and second chuck 22 be in parallel state with first arm 13 or second arm 17 all the time.

Further, the connection assembly 29 includes a connection plate 291, a screw 292, an insertion plate 293 and a nut 294, bottom ends of the fourth cylinder 26 and the fifth cylinder 27 respectively penetrate through the first mounting frame 10 and the second mounting frame 14 and are fixedly connected with the connection plate 291, the bottom of each connection plate 291 is fixedly connected with the screw 292, the outside of each of the two screws 292 is slidably connected with the insertion plate 293, the outside of each of the two screws 292 is located under the insertion plate 293 and is connected with the nut 294 through threads, the first mechanical arm 13 and the fourth cylinder 26 as well as the second mechanical arm 17 and the fifth cylinder 27 can be connected with the fixing box 28, and therefore the fourth cylinder 26 and the fifth cylinder 27 can drive the first mechanical arm 13 and the second mechanical arm 17 to independently move up and down.

Further, the exterior of the first mechanical arm 13 and the second mechanical arm 17 and one side of the inserting plate 293 are fixedly connected with a fixing box 28, and one end of each of the two inserting plates 293 extends into the fixing box 28.

Further, the limiting component 31 includes a mounting groove 311, a cross bar 312, a spring 313, a through hole 314, and a limiting hook 315, the mounting groove 311 has all been seted up under first T type piece 12 and second T type piece 16 inside and being located of first mounting bracket 10 and second mounting bracket 14, the equal sliding connection in mounting groove 311 has cross bar 312, the equal fixedly connected with spring 313 in one side of two mounting groove 311 inner walls, the one end of spring 313 and the one end fixed connection of cross bar 312, the through hole 314 has all been seted up inside first mounting bracket 10 and second mounting bracket 14, the equal sliding connection in through hole 314 has limiting hook 315, the one end of limiting hook 315 extends to inside the mounting groove 311 and with cross bar 312 fixed connection, the one end that the cross bar 312 was kept away from to limiting hook 315 extends to the inside limiting groove 30 of first T type piece 12 and second T type piece 16 respectively, can carry out quick assembly disassembly operation to first T type piece 12 and second T type piece 16, thereby realize first arm 13 and second arm 17, thereby make things convenient for the staff to operate.

Specifically, when the dual-arm manipulator is used, a worker firstly installs the connecting disc 1 on a sliding table of a linear module of an injection mold, then selects a proper first chuck 21 or second chuck 22 according to use requirements, rotates the positioning bolt 25 to separate the positioning bolt from the second mechanical arm 17, at this time, rotates the turntable 20 on one side of the second mechanical arm 17, so that the turntable 20 can change the positions of the first chuck 21 and the second chuck 22, in the process, the arc-shaped groove 23 inside the turntable 20 slides outside the fixed shaft 24, the position of the turntable 20 can be limited, after adjustment, the positioning bolt 25 is rotated again, so that the positioning bolt 25 is in contact with the second mechanical arm 17 and fixes the turntable 20, then the turntable 20 outside the first mechanical arm 13 is driven to rotate in the manner, so that the first chuck 21 and the second chuck 22 at the bottom of the first mechanical arm 13 are changed, and the positioning bolt 25 is in contact with the first mechanical arm 13, so that the turntable 20 outside the first mechanical arm 13 is fixed, the lead screw 4 is driven to rotate by the motor 3, at this time, the first chuck 5 and the second chuck 22 at the bottom of the swing arm 2 are driven to change the position of the swing arm 2, so that the swing arm can be driven by the horizontal adjustment cylinder 9, thereby the main arm 9, the main frame 9 can be driven by the adjustment cylinder 9, so as to change the horizontal adjustment cylinder 9, so that the main frame 9 can be driven by the horizontal adjustment cylinder 9 in the main frame 9, thereby, the main frame 9, when the main frame 9, the main frame 9 can be changed, the first and second mounts 10 and 14 drive the slide block 19 to slide in the transverse slot 18 during the movement, so as to limit the positions of the first and second mounts 10 and 14, the fourth cylinder 26 drives the connecting plate 291 to move up and down, the connecting plate 291 drives the insert 293 and the screw 292 to move, the insert 293 cooperates with the fixing box 28 to drive the first robot arm 13 to slide in the first T-block 12, so as to change the height of the first robot arm 13, the first collet 21 or the second collet 22 at the bottom of the first robot arm 13 can clamp the injection mold, the fifth cylinder 27 cooperates with the insert 293 and the fixing box 28 outside the second robot arm 17 to use, the second robot arm 17 can be driven to move up and down inside the second T-block 16, so that the first collet 21 and the second collet 22 at the bottom of the fifth cylinder 27 clamp the mold, so that the first robot arm 13 and the second robot arm 17 cooperate with the first collet 21 and the second collet 22 to complete different clamping operations, when the second robot arm 17 needs to be replaced, the first robot arm 17 and the second robot arm 17 moves out of the inserting bar 293 and the fixing box 28 from the inner portion, so as to push the screw 312 to separate the insert from the fixing box 12, the fixing box 28, the second robot arm 312, and the screw 313, and the second robot arm 17 can move, so as to push the fixing hook 312 to push the fixing box 28 inside the fixing box 28, and the fixing hook 312, and the insert 28, at this time, so as to separate the fixing hook 312, the second robot arm 17, the bar 312, the fixing box 28, the second T-shaped block 16 is inserted into the second mounting frame 14, at this time, the second T-shaped block 16 extrudes the limiting hook 315 at the bottom of the second T-shaped block, at this time, the limiting hook 315 moves in the through hole 314 and drives the cross rod 312 to extrude the spring 313, when the limiting hook 315 moves into the limiting groove 30 in the second T-shaped block 16, the spring 313 pushes the cross rod 312 to reset, so that the limiting hook 315 cooperates with the limiting groove 30 to position the second T-shaped block 16, at this time, the second mechanical arm 17 can be mounted, then, the inserting plate 293 is pulled to slide outside the screw 292, so that one end of the inserting plate 293 is inserted into the fixing box 28 outside the second mechanical arm 17, and the nut 294 is screwed, so that the position of the inserting plate 293 is fixed, at this time, the fifth cylinder 27 and the second mechanical arm 17 can be connected, in the above manner, the inserting plate 293 can be dismounted and mounted by cooperating with the limiting groove 30 in the first T-shaped block 12, and the first mechanical arm 13 is mounted and then, and the fourth mechanical arm 26 is connected together by cooperating with the first mechanical arm 13.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The double-arm manipulator of the injection molding machine is characterized by comprising a connecting disc (1), a main frame (2), an adjusting arm (5), a cross beam (9), a first mounting frame (10), a first mechanical arm (13), a second mechanical arm (17), a turntable (20), a connecting assembly (29) and a limiting groove (30), wherein the main frame (2) is fixedly connected to the top of the connecting disc (1), a motor (3) is fixedly connected to the top of the inner wall of the main frame (2), the output end of the motor (3) penetrates through the main frame (2) and is fixedly connected with a lead screw (4), the adjusting arm (5) is in threaded connection with the outer portion of the lead screw (4), a swing arm (7) is rotatably connected to the inner portion of the adjusting arm (5), a central shaft of the swing arm (7) penetrates through the adjusting arm (5) and is fixedly connected with the cross beam (9), the first mounting frame (10) is in sliding connection with the inner portion of the cross beam (9), a first T-shaped block (12) is detachably connected to the inner portion of the first mounting frame (10), a first T-shaped block (12) is slidably connected to the inner portion of the first T-shaped block (12), a second mounting frame (14) is connected to the inner portion of the second mounting frame (14), the inside sliding connection of second T type piece (16) has second arm (17), the bottom of first arm (13) and second arm (17) extends to first mounting bracket (10) and second mounting bracket (14) below respectively, the outside of first arm (13) and second arm (17) is all rotated and is connected with carousel (20), the one end of carousel (20) can be dismantled and is connected with first chuck (21), the one end that first chuck (21) were kept away from in carousel (20) can be dismantled and is connected with second chuck (22), the top fixedly connected with fourth cylinder (26) of first mounting bracket (10), the top fixedly connected with fifth cylinder (27) of second mounting bracket (14), the bottom of fourth cylinder (26) and fifth cylinder (27) runs through first mounting bracket (10) and second mounting bracket (14) and fixedly connected with coupling assembling (29) respectively, first T type piece (12) and the inside impartial distance of second T type piece (16) have seted up spacing groove (30), first spacing subassembly (10) and second mounting bracket (31) are all provided with spacing subassembly (31).

2. The double-arm manipulator of the injection molding machine as claimed in claim 1, wherein a vertical rod (6) is slidably connected inside the main frame (2), and the top end of the vertical rod (6) penetrates through the main frame (2) and is fixedly connected with the bottom of the adjusting arm (5).

3. The double-arm manipulator of the injection molding machine as claimed in claim 1, wherein a first cylinder (8) is rotatably connected to one side of the motor (3), and the top end of the first cylinder (8) is rotatably connected with the bottom of the swing arm (7).

4. The double-arm manipulator of the injection molding machine according to claim 1, wherein a second cylinder (11) is fixedly connected to one side of the outer portion of the beam (9) close to the motor (3), one end of the second cylinder (11) penetrates through the beam (9) and is fixedly connected to one side of the first mounting frame (10), a third cylinder (15) is fixedly connected to one side of the outer portion of the beam (9) far away from the motor (3), and one end of the third cylinder (15) penetrates through the beam (9) and is fixedly connected to one side of the second mounting frame (14) far away from the first mounting frame (10).

5. The double-arm manipulator of the injection molding machine as claimed in claim 1, wherein transverse grooves (18) are formed in two sides of the inner wall of the cross beam (9), sliding blocks (19) are symmetrically and fixedly connected to the outer portions of the first mounting frame (10) and the second mounting frame (14), one end of each sliding block (19) extends into each transverse groove (18), and each sliding block (19) is connected with each transverse groove (18) in a sliding mode.

6. The double-arm manipulator of the injection molding machine according to claim 1, wherein an arc-shaped groove (23) is formed in the rotary table (20), fixed shafts (24) are fixedly connected to the outer portions of the first mechanical arm (13) and the second mechanical arm (17), one end of each of the two fixed shafts (24) extends into the corresponding arc-shaped groove (23), positioning bolts (25) are connected to the inner portions of the two rotary tables (20) in a threaded manner, and one end of each of the two positioning bolts (25) penetrates through the rotary table (20) and is in contact with the outer walls of the first mechanical arm (13) and the second mechanical arm (17).

7. The double-arm manipulator of the injection molding machine according to claim 1, wherein the connecting assembly (29) comprises connecting plates (291), screws (292), inserting plates (293) and nuts (294), the bottom ends of the fourth cylinder (26) and the fifth cylinder (27) respectively penetrate through the first mounting frame (10) and the second mounting frame (14) and are fixedly connected with the connecting plates (291), the bottom of each connecting plate (291) is fixedly connected with the screw (292), the inserting plates (293) are slidably connected to the outer portions of the two screws (292), and the nuts (294) are threadedly connected to the outer portions of the two screws (292) and located right below the inserting plates (293).

8. The double-arm manipulator of the injection molding machine as claimed in claim 1, wherein a fixed box (28) is fixedly connected to one side of each inserting plate (293) and outside the first mechanical arm (13) and the second mechanical arm (17), and one end of each inserting plate (293) extends into the fixed box (28).

9. The double-arm manipulator of the injection molding machine as claimed in claim 1, wherein the limiting assembly (31) comprises a mounting groove (311), a cross bar (312), a spring (313), a through hole (314) and a limiting hook (315), the mounting groove (311) is formed in the first mounting frame (10) and the second mounting frame (14) and located under the first T-shaped block (12) and the second T-shaped block (16), the cross bar (312) is connected to the inside of the mounting groove (311) in a sliding manner, the spring (313) is fixedly connected to one side of the inner wall of the two mounting grooves (311), one end of the spring (313) is fixedly connected to one end of the cross bar (312), the through hole (314) is formed in the first mounting frame (10) and the second mounting frame (14), the limiting hook (315) is connected to the inside of the mounting groove (311) in a sliding manner, one end of the limiting hook (315) far away from the cross bar (312) extends to the inside of the first T-shaped block (12) and the inside of the second T-shaped block (16), respectively.

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