CN212947793U - Three-axis two-stage stretching mechanism for cylindrical coordinate robot - Google Patents

Abstract

The utility model discloses a three-axis two-stage extension mechanism for a cylindrical coordinate robot, which relates to an extension mechanism for a mechanical arm, wherein a servo motor is fixedly arranged on one side of the top of a linking frame, a driving synchronous pulley is fixedly arranged at the driving end of the servo motor, a driven synchronous pulley is rotatably connected in a first sealing plate, two slide rails are symmetrically arranged on two sides of a keel frame, two groups of slide blocks are jointly and slidably connected between the two slide rails on the same side, a driving chain wheel and a driven chain wheel are respectively and fixedly arranged at two ends of the keel frame, a chain is jointly sleeved outside the driving chain wheel and the driven chain wheel, the left and right movement of the mechanical arm is to be completed, the servo motor is required to be controlled to work, the servo motor finally transmits power to the mechanical arm through a series of transmission structures, so that the mechanical arm can, the manufacturing cost is low, the operation requirement on technical personnel is low, the operation is easy to be carried out, and the practicability is high.

Description

Three-axis two-stage stretching mechanism for cylindrical coordinate robot

Technical Field

The utility model relates to a robotic arm's mechanism of stretching out specifically is a mechanism is stretched out to triaxial second grade that cylindrical coordinates robot used.

Background

When the mechanical arm takes and places the workpiece to be detected, the mechanical arm needs to complete the movement of the mechanical arm by means of an external extending mechanism, so that the position of the mechanical arm when the workpiece is taken and placed is adjusted.

However, the extension mechanism used by the existing mechanical arm is not only complex in structure, but also complex in operation steps, and has extremely high requirements on the operation level of technicians, and therefore, the technicians in the field provide a three-axis two-stage extension mechanism for a cylindrical coordinate robot.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a mechanism is stretched out to triaxial second grade that cylindrical coordinates robot used has solved the mechanism that stretches out that present robotic arm used, and structurally not only complicated, operating procedure is comparatively loaded down with trivial details moreover, has the problem of high requirement to technical staff's operation level.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a mechanism is stretched out to triaxial second grade that cylindrical coordinate robot used, includes the mounting substrate that two symmetries set up, its characterized in that, two mounting substrate's the common fixed mounting in bottom has actuating mechanism.

The driving mechanism comprises a linking frame which is fixedly connected with two mounting base plates and has a U-shaped structure, a keel frame is arranged below the linking frame, a first sealing plate and a second sealing plate are respectively and correspondingly fixed at two ends of the keel frame, the keel frame and the linking frame slide relatively, a servo motor is fixedly arranged at one side of the top of the linking frame, a driving synchronous pulley is fixedly arranged at the driving end of the servo motor, a driven synchronous pulley supporting plate is fixedly arranged at one side of the linking frame close to the servo motor, a driven synchronous pulley is arranged on the driven synchronous pulley supporting plate, two sliding rails are symmetrically arranged at two end faces of the keel frame, two groups of sliding blocks are commonly and slidably connected between the two sliding rails at the same side, and a driving chain wheel and a driven chain wheel are respectively and fixedly arranged at two ends of the keel frame, and a chain is sleeved outside the driving chain wheel and the driven chain wheel together.

Preferably, a sliding seat is connected below the driving mechanism in a sliding manner, a mechanical arm is fixedly mounted at the bottom end of the sliding seat, and a workpiece is fixedly arranged on a bearing end face of the mechanical arm.

Preferably, a lead screw penetrates through the driven synchronous pulley, a lead screw nut is fixedly mounted in the first sealing plate, and the lead screw nut is in threaded connection with the lead screw.

Preferably, the top end of the sliding seat is fixedly connected with the sliding blocks of the lower group, and the sliding blocks of the lower group are fixedly connected with the chain.

Preferably, a power transmission structure is formed between the driving synchronous pulley and the driven synchronous pulley through a belt, and the transmission ratio of the driving synchronous pulley to the driven synchronous pulley is 1: 1.

Advantageous effects

The utility model provides a mechanism is stretched out to triaxial second grade that cylindrical coordinates robot used. Compared with the prior art, the method has the following beneficial effects:

a three-shaft two-stage extension mechanism for a cylindrical coordinate robot is provided, which comprises a linking frame, a keel frame is arranged below the linking frame, a first sealing plate and a second sealing plate are respectively and correspondingly fixed at two ends of the keel frame, the keel frame and the linking frame slide relatively, a servo motor is fixedly arranged at one side of the top of the linking frame, a driving synchronous belt wheel is fixedly arranged at the driving end of the servo motor, a driven synchronous belt supporting plate is fixedly arranged at one side of the first sealing plate, a driven synchronous belt wheel is arranged on the driven synchronous belt supporting plate, two slide rails are symmetrically arranged at two end faces at two sides of the keel frame, two groups of slide blocks are jointly connected between the two slide rails at the same side in a sliding manner, a driving chain wheel and a driven chain wheel are respectively and fixedly arranged at two ends of the keel frame, and a chain is jointly sleeved outside the, above-mentioned structure, when in-service use, want to accomplish that robotic arm removes and then gets, put the work piece, need control servo motor work, servo motor passes through a series of transmission structure, finally gives robotic arm with power transmission for robotic arm can remove, simple structure, and not only low in manufacturing cost also is lower to technical staff's operating requirement moreover, easily gets into the hand, and the practicality is high.

Drawings

Fig. 1 is a schematic view of an assembly structure of the present invention;

fig. 2 is a schematic structural view of a first viewing angle of the driving mechanism of the present invention in an exploded state;

fig. 3 is a schematic structural diagram of a second viewing angle of the driving mechanism of the present invention in a disassembled state.

In the figure: 1. a mounting substrate; 2. a drive mechanism; 21. engaging the frame; 22. a first sealing plate; 23. a second sealing plate; 24. a keel frame; 25. a servo motor; 26. a driving synchronous pulley; 27. a driven synchronous pulley; 28. a slider; 29. a drive sprocket; 210. a driven sprocket; 211. a chain; 212. a slide rail; 3. a slide base; 4. a robot arm; 5. and (5) a workpiece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a mechanism is stretched out to triaxial second grade that cylindrical coordinate robot used, includes two mounting substrate 1 that the symmetry set up, and the common fixed mounting in bottom of two mounting substrate 1 has actuating mechanism 2, has slide 3 in actuating mechanism 2's below sliding connection, has robotic arm 4 at the bottom fixed mounting of slide 3, at the fixed work piece 5 that is provided with of the terminal surface that bears of robotic arm 4.

Referring to fig. 2, the driving mechanism 2 includes a joining frame 21 fixedly connected to two mounting substrates 1 and having a "u" shaped structure, a keel frame 24 is disposed below the joining frame 21, a first sealing plate 22 and a second sealing plate 23 are correspondingly fixed at two ends of the keel frame 24, the keel frame 24 and the joining frame 21 slide relative to each other, a servo motor 25 is fixedly installed at one side of the top of the joining frame 21, a driving synchronous pulley 26 is fixedly installed at a driving end of the servo motor 25, a driven synchronous pulley support plate is fixedly installed at one side of the joining frame 21 close to the servo motor 25, a driven synchronous pulley 27 is installed on the driven synchronous pulley support plate, two slide rails 212 are symmetrically installed at two end surfaces of the keel frame 24, two sets of slide blocks 28 are connected between the two slide rails 212 at the same side in a sliding manner, a driving sprocket 29 and a driven sprocket 210 are fixedly installed at two ends of the keel frame 24, the top end of the slide base 3 of the chain 211 is fixedly connected with the slide blocks 28 of the lower group together by sleeving the driving sprocket 29 and the driven sprocket 210 outside, and the slide blocks 28 of the lower group are positioned inside the chain 211 and are fixedly connected with the chain 211.

In this embodiment, a lead screw (not shown in the figure) is connected through the inside of the driven synchronous pulley 27, a lead screw nut (not shown in the figure) is fixedly installed inside the first sealing plate 22, the lead screw nut is connected with the lead screw through a thread, the top end of the chain 211 is fixedly connected with the bottom end face of the linking frame 21, when in actual use, the servo motor 25 drives the driving synchronous pulley 26 to rotate, under the action of a synchronous belt (sleeved outside the driving synchronous pulley 26 and the driven synchronous pulley 27), the driven synchronous pulley 27 rotates, thereby realizing that the driven synchronous pulley 27 drives the lead screw to rotate, the rotation of the lead screw pushes the first sealing plate 22 to move under the action of the thread, thereby driving the keel frame 24 to move, because the top end of the chain 211 is fixedly connected with the linking frame 21, when the keel frame 24 moves, two sprockets all can receive the vertical pulling force to the right that chain 211 upper portion was given for two sprockets carry out clockwise rotation, afterwards, the lower part of chain 211 can the direction motion left, and because chain 211 links together with slider 212, and slider 211 links together with slide 3 again, and then makes slide 3 remove, thereby realized slide 3 and driven the purpose that robotic arm 4 stretched out, robotic arm 4's withdrawal according to the above-mentioned same principle operation can, and then indirect drive robotic arm 4 removes.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 (5)

1. A three-axis two-stage extension mechanism for a cylindrical coordinate robot comprises two symmetrically arranged mounting base plates (1), and is characterized in that the bottom ends of the two mounting base plates (1) are fixedly provided with a driving mechanism (2) together;

the driving mechanism (2) comprises a linking frame (21) which is fixedly connected with two mounting base plates (1) and has a U-shaped structure, a keel frame (24) is arranged below the linking frame (21), a first sealing plate (22) and a second sealing plate (23) are correspondingly fixed at two ends of the keel frame (24) respectively, the keel frame (24) and the linking frame (21) slide relatively, a servo motor (25) is fixedly installed at one side of the top of the linking frame (21), a driving synchronous pulley (26) is fixedly installed at the driving end of the servo motor (25), a driven synchronous pulley supporting plate is fixedly installed at one side of the linking frame (21) close to the servo motor (25), a driven synchronous pulley (27) is installed on the driven synchronous pulley supporting plate, two slide rails (212) are symmetrically installed on two side end faces of the keel frame (24), two sets of sliders (28) are connected between two slide rails (212) on the same side in a sliding mode, a driving chain wheel (29) and a driven chain wheel (210) are fixedly mounted at the two ends of the keel frame (24) respectively, and a chain (211) is sleeved outside the driving chain wheel (29) and the driven chain wheel (210) together.

2. The three-axis two-stage extension mechanism for the cylindrical coordinate robot is characterized in that a sliding seat (3) is connected below the driving mechanism (2) in a sliding manner, a mechanical arm (4) is fixedly installed at the bottom end of the sliding seat (3), and a workpiece (5) is fixedly arranged on the bearing end face of the mechanical arm (4).

3. The three-axis two-stage extending mechanism for the cylindrical coordinate robot as claimed in claim 1, wherein a lead screw penetrates through the driven synchronous pulley (27), a lead screw nut is fixedly mounted inside the first sealing plate (22), and the lead screw nut and the lead screw are connected through threads.

4. The three-axis two-stage extension mechanism for the cylindrical coordinate robot is characterized in that the top end of the sliding seat (3) is fixedly connected with the sliding blocks (28) of the lower group, and the sliding blocks (28) of the lower group are fixedly connected with the chain (211).

5. The three-axis two-stage extending mechanism for the cylindrical coordinate robot is characterized in that a power transmission structure is formed between the driving synchronous pulley (26) and the driven synchronous pulley (27) through a belt, and the transmission ratio of the driving synchronous pulley (26) to the driven synchronous pulley (27) is 1: 1.

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