Protection device for lead screw transmission part of robot

Abstract

The utility model discloses a robot lead screw transmission piece protection device which comprises a fixed seat, a sliding table and a lead screw, side plates are installed on the two sides of the fixed seat, the sliding table is arranged in the fixed seat, a sliding block comprises an outer driving seat and an inner driving seat, a rectangular opening is formed in the middle of the outer driving seat, the inner driving seat is arranged in the rectangular opening, and the lead screw is arranged in the sliding table. A receding space is formed between the inner fixing base and the rectangular opening, a lead screw hole is formed in the inner driving base, a lead screw driving the inner driving base and the outer driving base to move is in threaded connection with the interior of the lead screw hole, and buffering assemblies connected with the inner driving base are installed on the two sides of the outer driving base correspondingly. The buffer device is simple in structure, when the buffer device is impacted by the side face, the outer driving seat can longitudinally move along the positioning column, friction is generated between the outer driving seat and the rubber sleeve in the moving process, the compression spring is extruded, and therefore the buffer effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to robot technical field, concretely relates to a protection device of robot screw rod transmission part. BACKGROUND

[0002] A robot is an automated machine with two or more programmable axes and a degree of autonomy that enables it to move in its environment to perform a predetermined task.

[0003] At present, the robot generally installs screw rod transmission part, moves the robot through the screw rod transmission part, but the present screw rod transmission part lacks the structure of protection, once is subjected to outside, its impact force can be transmitted to the screw rod, easy to cause the bending and deformation of screw rod, and lacks the structure of buffer, cannot carry out buffer protection. SUMMARY

[0004] The utility model wants to solve the technical problem to provide a protection device of robot screw rod transmission part, the slide table has the function of displacement buffer, to play the function of protecting the robot, to solve the problem raised in the above background art.

[0005] The utility model is through following technical scheme to realize: a protection device of robot screw rod transmission part, including fixed seat, slide table and screw rod, both sides of fixed seat install side plate, slide table sets up in fixed seat, sliding block includes outer drive seat and inner drive seat, the middle portion of outer drive seat is equipped with rectangle mouth, inner drive seat sets up in rectangle mouth, and the retreat space is formed between inner fixed seat and rectangle mouth, and the screw rod hole is equipped on inner drive seat, and the screw rod hole is connected with the screw rod that drives inner drive seat and outer drive seat moves with screw thread, both sides of outer drive seat all install the buffer assembly that is connected with inner drive seat.

[0006] As a preferred technical scheme, the buffer assembly all includes positioning column and compression spring, both sides of outer drive seat all are equipped with a plurality of positioning holes, the inside of positioning hole all installs rubber bushing, both sides of inner drive seat are opposite positioning hole all are equipped with screw hole, the one end of positioning column all is inserted into screw hole through rubber bushing, the inside of side plate is opposite positioning column all is equipped with positioning groove transversely, the other end of positioning column all is inserted into positioning groove, and the compression spring all is covered positioning column, and one end of compression spring all is in contact with outer drive seat, and the other end all is in contact with the inside of side plate.

[0007] As a preferred technical scheme, the one end of positioning column in screw hole interior all is equipped with screw, and positioning column all is set up through screw and screw hole screw connection.

[0008] As a preferred technical scheme, one end of side plate all is equipped with operation groove.

[0009] Preferably, the inner wall surface of the rubber sleeve is in damping contact with the outer wall surface of the positioning column.

[0010] Preferably, the diameter of the positioning column matches the width of the positioning groove.

[0011] Preferably, the outer driving seat is provided with a connecting plate.

[0012] Preferably, the upper and lower surfaces of the inner driving seat are in contact with the inner wall surface of the rectangular port.

[0013] Preferably, the sealing bearing is embedded in the two ends of the fixed seat, the screw rod is installed in the inner ring of the sealing bearing, and the motor connected with the screw rod is installed at one end of the fixed seat.

[0014] The utility model discloses the beneficial effect is: the utility model discloses simple structure, when being impacted by the side, the outer driving seat can move along the vertical direction of the positioning column, and the friction with the rubber sleeve is generated in the process of moving, and the compression spring is extruded, thereby play the role of buffering, avoid the bending caused by the direct impact of the screw rod, also increase the safety of the mechanical arm on the outer driving seat. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the structure schematic diagram of the utility model after removing the connecting plate;

[0018] Figure 3 It is the structure schematic diagram of the utility model after removing the side plate;

[0019] Figure 4 It is the structure schematic diagram of the utility model buffer assembly.

[0020] 1, fixed seat, 2, outer fixed seat, 3, inner driving seat, 4, connecting plate, 5, side plate, 6, positioning groove, 7, screw rod, 8, sealing bearing, 9, motor, 10, operation groove, 11, compression spring, 12, positioning column, 13, rubber sleeve. DETAILED DESCRIPTION

[0021] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are intended to explain the present application, and should not be understood as limiting the present application.

[0022] All features disclosed in this specification, or all steps of any methods or processes disclosed in this specification, can be combined in any combination, except where features or steps are mutually exclusive.

[0023] Any feature disclosed in this specification, unless stated otherwise, can be replaced by alternative features or equivalents having the same or a similar effect. That is, unless stated otherwise, each feature is one example only of a number of alternative or similar features.

[0024] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the protective device of the robot screw rod transmission part of the present application comprises a fixed seat 1, a sliding table and a screw rod 7, the two sides of the fixed seat 1 are provided with side plates 5, the sliding table is arranged in the fixed seat 1, the sliding block comprises an outer driving seat 2 and an inner driving seat 3, a rectangular port is arranged in the middle of the outer driving seat 2, the inner driving seat 3 is arranged in the rectangular port, a retreat space is formed between the inner fixed seat 1 and the rectangular port, a screw rod hole is arranged on the inner driving seat 3, a screw rod 7 for moving the inner driving seat 3 and the outer driving seat 2 is threadedly connected in the screw rod hole, and a buffer assembly connected with the inner driving seat 3 is arranged on the two sides of the outer driving seat 2.

[0025] In this embodiment, the buffer assembly comprises a positioning column 12 and a compression spring 11, a plurality of positioning holes are arranged on the two sides of the outer driving seat 2, a rubber sleeve 13 is arranged in each positioning hole, a screw hole is arranged on the two sides of the inner driving seat 3 opposite to the positioning holes, one end of the positioning column 12 is inserted into the screw hole through the rubber sleeve 13, a positioning groove 6 is transversely arranged on the inner side of the side plate 5 opposite to the positioning column 12, the other end of the positioning column 12 is inserted into the positioning groove 6, the compression spring 11 is sleeved on the positioning column 12, one end of the compression spring 11 is arranged in abutment with the outer driving seat 2, and the other end is arranged in abutment with the inner side of the side plate 5.

[0026] In this embodiment, a screw thread is arranged on one end of the positioning column 12 inside the screw hole, and the positioning column 12 is arranged in threaded connection with the screw hole through the screw thread.

[0027] In the embodiment, one end of the side plate 5 is provided with an operation slot 10, when the sliding table moves to the operation slot, the outer side of the positioning column loses the composition from the side plate, at this time, the positioning column can be screwed out of the screw hole and pulled out of the positioning hole, which facilitates the replacement of the compression spring, rubber sleeve and positioning column, so as to ensure the buffering effect.

[0028] In the embodiment, the inner wall surface of the rubber sleeve 13 is in damping contact with the outer wall surface of the positioning column 12.

[0029] In the embodiment, the diameter of the positioning column 12 matches the width of the positioning groove 6, so that the sliding table can only move transversely along the positioning groove, to ensure the stability during movement.

[0030] In the embodiment, the upper and lower surfaces of the inner driving seat 3 are in contact with the inner wall surface of the rectangular port, so that the outer driving seat can only move longitudinally along the surface of the inner driving seat.

[0031] In the embodiment, the outer driving seat 2 is provided with a connecting plate 4, and the mechanical arm can be installed on the connecting plate and driven by the sliding table.

[0032] In the embodiment, the fixed seat 1 is embeddedly provided with a sealing bearing 8 at both ends, the lead screw 7 is installed in the inner ring of the sealing bearing 8 at both ends, and one end of the fixed seat 1 is provided with a motor 9 connected with the lead screw 7.

[0033] In use, the motor can be started, the starting of the motor drives the lead screw, the rotation of the lead screw drives the inner driving seat, and the inner driving seat can synchronously drive the outer driving seat through the positioning column, to realize the displacement of the mechanical arm.

[0034] The mechanical arm of the robot can be installed on the connecting plate, once the mechanical arm is impacted laterally, the starting impact force can act on the outer driving seat through the connecting plate, so that the outer driving seat appears a longitudinal movement along the positioning column, and the movement can rub against the rubber sleeve and compress the compression spring, so as to play a damping buffering role, reduce the probability of damage of the mechanical arm, and avoid the direct action of the impact force on the lead screw through displacement, greatly reduce the bending or damage of the lead screw, to ensure the service life of the robot.

[0035] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A protection device for a robot lead screw drive, characterized by: The utility model relates to a fixed seat (1) includes fixed seat (1) both sides install side plate (5), slide platform sets up in fixed seat (1), sliding block includes outer drive seat (2) and inner drive seat (3), the middle of outer drive seat (2) is equipped with rectangular mouth, inner drive seat (3) sets up in rectangular mouth, and the retreat space is formed between inner fixed seat (1) and rectangular mouth, and inner drive seat (3) is equipped with screw rod hole, and the screw rod hole is threadedly connected with the screw rod (7) of the inner drive seat (3) and outer drive seat (2) moves, and both sides of outer drive seat (2) are all installed with the buffer assembly connected with inner drive seat (3), Buffer assembly all includes locating post (12) and compression spring (11), both sides of outer drive seat (2) are all equipped with a plurality of locating holes, the inside of locating hole all installs rubber bushing (13), both sides of inner drive seat (3) are all equipped with screw hole opposite locating hole, one end of locating post (12) all passes through rubber bushing (13) and inserts into screw hole, the inner side of side plate (5) is opposite locating post (12) all and is equipped with transverse locating groove (6), the other end of locating post (12) all inserts into locating groove (6), and compression spring (11) all are sleeved on locating post (12), one end of compression spring (11) all is in contact with outer drive seat (2) and sets up, and the other end all is in contact with the inner side of side plate (5) and sets up.

2. The robot lead screw drive protection device of claim 1, wherein: The one end of locating post (12) in screw hole is all equipped with screw, and locating post (12) all are arranged through screw and screw hole threadedly.

3. The robotic lead screw drive protection apparatus of claim 1, wherein: One end of side plate (5) is all equipped with operating groove (10).

4. The robotic lead screw drive protection apparatus of claim 1, wherein: The inner wall of rubber bushing (13) all is in damping contact with the outer wall of locating post (12) and sets up.

5. The robotic lead screw drive protection apparatus of claim 1, wherein: The diameter of locating post (12) is matched with the width of locating groove (6).

6. The robotic lead screw drive protection apparatus of claim 1, wherein: The upper and lower surfaces of inner drive seat (3) are in contact with the inner wall of rectangular mouth.

7. The robotic lead screw drive protection apparatus of claim 1, wherein: Connecting plate (4) is installed on outer drive seat (2).

8. The robotic lead screw drive protection apparatus of claim 1, wherein: Both ends of fixed seat (1) are all embeddedly installed with sealed bearing (8), both ends of screw rod (7) are all installed in the inner ring of sealed bearing (8), and one end of fixed seat (1) is installed with motor (9) connected with screw rod (7).

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