Mechanical arm rod connecting mechanism

Abstract

The utility model provides a mechanical arm rod connecting mechanism which comprises a mechanical arm connecting arm, a sliding groove formed in the length direction of the mechanical arm connecting arm is formed in one face of the mechanical arm connecting arm, and strip-shaped grooves formed in the length direction of the mechanical arm connecting arm are formed in the two side faces, adjacent to the sliding groove, of the mechanical arm connecting arm. A sliding block is slidably installed in the sliding groove, half-tooth studs are inserted in the two strip-shaped grooves, the ends, away from the sliding block, of the half-tooth studs are sleeved with two limiting rings fixedly connected with the half-tooth studs, a ring is arranged between the two limiting rings, and a hanging rod is fixedly connected to the outer surface of the ring; the end, away from the ring, of the hanging rod is fixedly connected with a hanging ring, and the end, close to the limiting ring, of the half-tooth stud is connected with a mechanical arm connecting arm through an adjusting piece.

Description

Technical Field

[0001] The utility model relates to a mechanical arm rod connection mechanism, belonging to the field of mechanical arms. Background Art

[0002] The manipulator is generally composed of multiple manipulator connecting arms, and the multiple manipulator connecting arms can move through a transmission mechanism. During the disassembly and assembly process of the manipulator connecting arm, it is heavy, so it is necessary to use a lifting equipment to lift the manipulator connecting arm. In order to facilitate the connection between the lifting equipment and the manipulator connecting arm, a lifting ring needs to be installed on the manipulator connecting arm. The lifting ring is generally connected to the manipulator connecting arm by a threaded connection, that is, a screw hole that matches the lifting ring is processed on the manipulator connecting arm, so that the part of the lifting ring with the external thread is threaded into the screw hole to complete the assembly of the lifting ring and the manipulator connecting arm. The position of the screw hole on the manipulator connecting arm is fixed, and the relative position of the lifting ring and the manipulator connecting arm cannot be adjusted according to the on-site environment, which causes inconvenience in lifting the manipulator connecting arm. Therefore, it is necessary to design a manipulator arm rod connection mechanism that can adjust the relative position of the lifting ring and the manipulator connecting arm. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a robot arm rod connection mechanism to solve the problems raised in the above-mentioned background technology. The present invention realizes the adjustment of the relative position of the lifting ring and the robot arm connecting arm.

[0004] The two cams are connected by a plurality of slots, each of which is connected to the other end of the sliding sleeve, and the two cams are connected by a plurality of slots, each of which is connected to the other end of the sliding sleeve.

[0005] Furthermore, the adjusting part includes an ear plate, and an ear plate is provided at the lower position of one side of the half-thread stud close to the limiting ring, the ear plate is connected and fixed to the two limiting rings, one side of the ear plate is in sliding contact with the manipulator connecting arm, a through hole is opened on one side of the ear plate, a screw is inserted in the through hole, both ends of the screw are connected and fixed to the manipulator connecting arm, the screw is arranged along the length direction of the strip groove, and nuts are provided on both sides of the ear plate along the length direction of the screw, and the nuts are threadedly connected to the screw.

[0006] Furthermore, positioning seats are provided at both ends of the screw, and positioning holes are opened on the side of the two positioning seats facing the screw. The ends of the screw are installed in the positioning holes, and connecting plates with holes are connected and fixed on the two parallel side surfaces of the positioning seats. The connecting plates are connected and fixed to the manipulator connecting arm by screws.

[0007] Furthermore, a square head for clamping a wrench is connected and fixed to the middle position of one side of the half-thread stud close to the limiting ring, and the square head and the half-thread stud are an integrally formed structure.

[0008] Furthermore, both ends of the manipulator connecting arm are connected and fixed with a first ring ear for inserting the shaft rod, and a second ring ear is provided on one side of the first ring ear which is arranged concentrically with the first ring ear, and the second ring ear is connected and fixed to the manipulator connecting arm.

[0009] Furthermore, an outer surface of the ring is provided with an insertion hole arranged along the radial direction of the ring, and one end of the suspension rod away from the suspension ring is connected and fixed in the insertion hole.

[0010] Beneficial effects of the utility model:

[0011] 1. Insert the slider into the slide groove, and then make one end of the two half-thread studs pass through the two strip grooves and screw them into the two threaded blind holes on the slider. At this time, under the action of the limit ring, the two half-thread studs, the slider and the robot arm form an assembly relationship, thereby realizing the convenient disassembly and assembly of the lifting ring and the robot arm.

[0012] 2. Adjust the position of the ear plate along the screw. At this time, the half-thread stud slides along the strip groove, and the half-thread stud drives the slider to slide in the slide groove, so that the relative position of the lifting ring and the manipulator connecting arm changes. When the position of the lifting ring meets the required position for lifting, the two nuts on the screw are used to limit the relative position of the screw and the ear plate. At this time, the position of the half-thread stud is restricted, that is, the range of motion of the lifting ring is restricted, so as to realize the adjustment of the relative position of the lifting ring and the manipulator connecting arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a structural diagram of a mechanical arm rod connection mechanism of the utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a schematic diagram of the assembly of the middle ear plate, the limiting ring and the half-thread stud of a mechanical arm rod connection mechanism of the present invention;

[0017] Figure 4 This is a cross-sectional view of a slider in a mechanical arm rod connection mechanism of the present invention;

[0018] Figure 5 This is a schematic diagram of the assembly of the connecting plate and the positioning seat in a mechanical arm rod connection mechanism of the utility model;

[0019] In the figure: 1-manipulator connecting arm, 2-slide, 3-slider, 4-lifting ring, 5-lifting rod, 6-positioning seat, 7-screw, 8-strip groove, 9-ear plate, 10-nut, 11-first ring ear, 12-second ring ear, 13-half-tooth stud, 14-ring, 15-square head, 16-limiting ring, 17-through hole, 18-threaded blind hole, 19-positioning hole, 20-connecting plate. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1 The utility model provides a technical solution: a robot arm rod connection mechanism, including a robot connecting arm 1, both ends of the robot connecting arm 1 are connected and fixed with a first ring ear 11 for inserting a shaft rod, and one side of the first ring ear 11 is provided with a second ring ear 12 arranged concentrically with the first ring ear 11, and the second ring ear 12 is connected and fixed to the robot connecting arm 1. The design of the first ring ear 11 and the second ring ear 12 facilitates the installation of the shaft rod on the robot connecting arm 1.

[0022] See Figure 1-Figure 4, a slide groove 2 is provided on one side of the manipulator connecting arm 1 along the length direction of the manipulator connecting arm 1, and a strip groove 8 is provided on the two sides adjacent to the manipulator connecting arm 1 and the slide groove 2, and a slider 3 is slidably installed in the slide groove 2. A threaded blind hole 18 is provided on the middle position of the two sides of the slider 3 facing the strip groove 8. A half-thread stud 13 is inserted in the two strip grooves 8. One end of the half-thread stud 13 with an external thread is threadedly connected to the threaded blind hole 18. The half-thread stud 13 is at the end away from the slider 3 and is provided with two screws connected and fixed to the half-thread stud 13 The limiting ring 16 is used to insert the slider 3 into the slide groove 2, and then one end of the two half-thread studs 13 passes through the two strip grooves 8 respectively and is screwed into the two threaded blind holes 18 on the slider 3. At this time, under the action of the limiting ring 16, the two half-thread studs 13, the slider 3 and the manipulator connecting arm 1 form an assembly relationship, thereby realizing convenient disassembly and assembly of the lifting ring 4 and the manipulator connecting arm 1. The half-thread stud 13 is connected and fixed with a square head 15 for clamping a wrench in the middle position of one side near the limiting ring 16. The square head 15 and the half-thread stud 13 are an integrally formed structure, so that the wrench is clamped on the square head 15, which is convenient for twisting the half-thread stud 13.

[0023] See Figure 1-Figure 4 , a ring 14 is provided between the two limiting rings 16, and the ring 14 is sleeved on the half-tooth stud 13. The outer surface of the ring 14 is connected and fixed with a suspension rod 5, wherein the outer surface of the ring 14 is provided with a socket arranged along the radial direction of the ring 14, so that the end of the suspension rod 5 away from the suspension ring 4 is connected and fixed in the socket, increasing the connection range of the suspension rod 5 and the ring 14, and the end of the suspension rod 5 away from the ring 14 is connected and fixed with the suspension ring 4. An ear plate 9 is provided at the lower position of one side of the half-tooth stud 13 close to the limiting ring 16. The ear plate 9 is connected and fixed with the two limiting rings 16. One side of the ear plate 9 is in sliding contact with the manipulator connecting arm 1, and a through hole 17 is provided on one side of the ear plate 9. A screw 7 is inserted in the through hole 17, and both ends of the screw 7 are connected to the machine The hand connecting arm 1 is connected and fixed, the screw 7 is arranged along the length direction of the strip groove 8, and the ear plate 9 is provided with nuts 10 on both sides of the length direction of the screw 7. The nut 10 is threadedly connected to the screw 7, and the position of the ear plate 9 is adjusted along the screw 7. At this time, the half-tooth stud 13 slides along the strip groove 8, and the half-tooth stud 13 drives the slider 3 to slide in the slide groove 2, and then the relative position of the lifting ring 4 and the manipulator connecting arm 1 changes. When the position of the lifting ring 4 meets the required position for lifting, the two nuts 10 on the screw 7 are used to limit the relative position of the screw 7 and the ear plate 9. At this time, the position of the half-tooth stud 13 is restricted, that is, the range of motion of the lifting ring 4 is restricted, thereby realizing the adjustment of the relative position of the lifting ring 4 and the manipulator connecting arm 1.

[0024] See Figure 1 and Figure 5, both ends of the screw rod 7 are provided with a positioning seat 6, and the two positioning seats 6 are provided with a positioning hole 19 on the side facing the screw rod 7. The end of the screw rod 7 is installed in the positioning hole 19, and the two parallel side surfaces of the positioning seat 6 are connected and fixed with a connecting plate 20 with a hole. The connecting plate 20 is connected and fixed to the manipulator connecting arm 1 by screws, so that the end of the screw rod 7 is installed in the positioning hole 19, and then the connecting plate 20 is installed on the manipulator connecting arm 1 with screws to complete the assembly of the screw rod 7 and the manipulator connecting arm 1.

[0025] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A robot arm rod connection mechanism, comprising a robot arm connection arm (1), characterized in that: The manipulator connecting arm (1) is provided with a slide groove (2) arranged along the length direction of the manipulator connecting arm (1) on one side, and strip grooves (8) arranged along the length direction of the manipulator connecting arm (1) are provided on two side surfaces adjacent to the slide groove (2). The strip groove (8) is communicated with the slide groove (2), and a slider (3) is slidably installed in the slide groove (2). The slider (3) is provided with a threaded blind hole (18) at the middle position of the two side surfaces facing the strip groove (8), and half-thread studs (13) are inserted in the two strip grooves (8), and the half-thread studs (13) are processed with external threads. One end of the half-thread stud (13) is threadedly connected to the threaded blind hole (18), and the end of the half-thread stud (13) away from the slider (3) is provided with two limiting rings (16) connected and fixed to the half-thread stud (13). A ring (14) is provided between the two limiting rings (16), and the ring (14) is sleeved on the half-thread stud (13). The outer surface of the ring (14) is connected and fixed with a suspension rod (5), and the end of the suspension rod (5) away from the ring (14) is connected and fixed with a suspension ring (4), and the end of the half-thread stud (13) close to the limiting ring (16) is connected to the manipulator connecting arm (1) through an adjusting member.

2. A robotic arm rod connection mechanism according to claim 1, characterized in that: The adjusting member includes an ear plate (9), an ear plate (9) is provided at a lower position of one side of the half-thread stud (13) close to the limiting ring (16), the ear plate (9) is connected and fixed with the two limiting rings (16), one side of the ear plate (9) is in sliding contact with the manipulator connecting arm (1), a through hole (17) is provided on one side of the ear plate (9), a screw rod (7) is inserted into the through hole (17), both ends of the screw rod (7) are connected and fixed with the manipulator connecting arm (1), the screw rod (7) is arranged along the length direction of the strip groove (8), and nuts (10) are provided on both sides of the ear plate (9) along the length direction of the screw rod (7), and the nut (10) is threadedly connected to the screw rod (7).

3. A robotic arm rod connection mechanism according to claim 2, characterized in that: Both ends of the screw (7) are provided with positioning seats (6), and the two positioning seats (6) are provided with positioning holes (19) on the side facing the screw (7). The ends of the screw (7) are installed in the positioning holes (19). The two parallel side surfaces of the positioning seats (6) are connected and fixed with connecting plates (20) with holes, and the connecting plates (20) are connected and fixed to the manipulator connecting arm (1) by screws.

4. The robot arm rod connection mechanism according to claim 1, characterized in that: A square head (15) for clamping a wrench is fixedly connected to the middle of one side of the half-thread stud (13) close to the limiting ring (16), and the square head (15) and the half-thread stud (13) are an integrally formed structure.

5. The robot arm rod connection mechanism according to claim 1, characterized in that: Both ends of the manipulator connecting arm (1) are connected and fixed with a first ring ear (11) for inserting a shaft rod, one side of the first ring ear (11) is provided with a second ring ear (12) arranged concentrically with the first ring ear (11), and the second ring ear (12) is connected and fixed to the manipulator connecting arm (1).

6. The robot arm rod connection mechanism according to claim 1, characterized in that: The outer surface of the ring (14) is provided with a socket arranged along the radial direction of the ring (14), and the end of the suspension rod (5) away from the suspension ring (4) is connected and fixed in the socket.

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