An error correction device

Abstract

The application relates to an error correction device, which comprises a mounting base, a mounting block and a connecting block distributed along a first axis direction, the mounting block is rotatably connected to the mounting base around the first axis, the connecting block is connected to the mounting block and can move relative to the mounting block in a first plane perpendicular to the first axis, a first positioning structure is arranged between the connecting block and the mounting block and used for driving the connecting block to move to an initial position relative to the mounting block, and a second positioning structure is arranged between the mounting block and the mounting base and used for driving the mounting block to rotate to an initial position relative to the mounting base. Through the arrangement of the mounting base, the mounting block and the connecting block, the connecting block can rotate relative to the mounting base along the first axis and can move relative to the mounting base in the first plane, so that the error correction function in multiple directions is realized, and the error correction direction range is wide.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automation equipment, and in particular to an error correction device. BACKGROUND

[0002] At present, in the positioning adjustment of molds, the assembly of large-scale integrated circuits and engines, the assembly of valves of automatic transmissions, automatic measurement (inspection), positioning and replacement of instruments, and other assembly and insertion operations, deviation correction devices are needed. When performing assembly and insertion operations, robots and special machines correct errors during assembly from the assembly initial position to the operation position by using correction devices, achieve high-precision positioning, improve operation speed, and shorten production time.

[0003] In related technologies, the deviation correction device commonly used is a spring plus a special elastic rubber structure. The spring plus a special elastic rubber structure realizes flexible connection but has limitations in the adjustment direction, resulting in limitations in the error correction direction. SUMMARY

[0004] Based on the above description, the present application provides an error correction device to solve the problem of limitations in the adjustment direction of the deviation correction device in related technologies, resulting in limitations in the error correction direction.

[0005] The technical solutions of the present application to solve the above technical problems are as follows:

[0006] The present application provides an error correction device, which adopts the following technical solutions:

[0007] An error correction device comprises:

[0008] A mounting seat, a mounting block, and a connecting block are distributed along the first axis direction, the mounting block is rotatably connected to the mounting seat around the first axis, and the connecting block is connected to the mounting block and can move relative to the mounting block in a first plane perpendicular to the first axis;

[0009] A first positioning structure is arranged between the connecting block and the mounting block and is used to drive the connecting block to move relative to the mounting block to an initial position;

[0010] A second positioning structure is arranged between the mounting block and the mounting seat and is used to drive the mounting block to rotate relative to the mounting seat to an initial position.

[0011] On the basis of the above technical solutions, the present application can also be improved as follows.

[0012] Further, the first positioning structure comprises:

[0013] A first positioning groove is arranged on a side of the connecting block close to the mounting block, and gradually decreases in diameter along a direction perpendicular to the first plane and away from the mounting block;

[0014] A first positioning ball is arranged on the mounting block and protrudes into the first positioning groove, and is movable along a direction perpendicular to the first plane and movable to a position with a gap or abutting against a side wall of the first positioning groove;

[0015] A first driving member is arranged on the mounting block and used to drive the first positioning ball to abut against the side wall of the first positioning groove, so as to drive the connecting block to move to an initial position relative to the mounting block by cooperation between the first positioning ball and the first positioning groove.

[0016] Further, the mounting block is fixedly connected with a first intermediate plate and a second intermediate plate between the mounting block and the mounting seat, the first intermediate plate and the second intermediate plate are both perpendicular to the first axis, the second intermediate plate is located between the first intermediate plate and the mounting block, the first intermediate plate and the second intermediate plate are rotationally connected with the mounting seat through a connecting bearing, and the second positioning structure is arranged between the first intermediate plate and the mounting seat.

[0017] Further, the second positioning structure comprises:

[0018] A second positioning groove is arranged on a side of the first intermediate plate close to the mounting seat, the second positioning groove is spaced apart from the first axis in a direction perpendicular to the first axis, and gradually decreases in diameter along a direction perpendicular to the first plane and away from the mounting seat;

[0019] A second positioning ball is arranged on the mounting seat and protrudes into the second positioning groove, and is movable along a direction perpendicular to the first plane and movable to a position with a gap or abutting against a side wall of the second positioning groove;

[0020] A second driving member is arranged on the mounting seat and used to drive the second positioning ball to abut against the side wall of the second positioning groove, so as to drive the mounting block to rotate to an initial position relative to the mounting seat by cooperation between the second positioning ball and the second positioning groove.

[0021] Further, an installation cavity coaxial with the first axis is arranged on the mounting seat, an installation plate perpendicular to the first axis is arranged in the installation cavity, a second installation hole parallel to the first axis is arranged on the installation plate, the second positioning ball is arranged in the second installation hole, and a diameter of the second positioning ball is greater than a thickness of the installation plate;

[0022] The second driving member comprises a second piston arranged in the mounting cavity, the second piston is located on the side of the mounting plate away from the first intermediate plate, the second piston is movable along the first axis direction and can be in contact with the second positioning ball.

[0023] Further, the second piston is sealingly connected with the side wall of the mounting cavity, so as to form a closed space between the second piston and the bottom wall of the mounting cavity away from the first intermediate plate.

[0024] Further, a first mounting hole coaxial with the first axis is arranged on the mounting block, and the first positioning ball is arranged in the first mounting hole.

[0025] The first driving member comprises a first piston coaxial with the first axis, the first piston is located between the mounting block and the mounting seat and is movable along the first axis direction, one end of the first piston is arranged in the first mounting hole and is in contact with the first positioning ball, and the other end of the first piston passes through the second intermediate plate, the first intermediate plate and the mounting plate and is connected with the second piston.

[0026] Further, the first piston passes through the second piston and is movable along the first axis direction relative to the second piston, and the first piston is sealingly connected with the second piston.

[0027] Further, the mounting seat is provided with a gas hole communicating with the closed space.

[0028] Compared with the prior art, the technical scheme of the present application has the following beneficial technical effects:

[0029] 1. By arranging the mounting seat, the mounting block and the connecting block, the mounting block can rotate relative to the mounting seat around the first axis, and the connecting block can move relative to the mounting block in the first plane, that is, the connecting block can rotate relative to the mounting seat around the first axis and can move relative to the mounting seat in the first plane. In actual application, the execution unit connected by the connecting block inserts the component to be assembled along the first axis direction for assembly, the connecting block can rotate relative to the mounting seat around the first axis to correct the rotation error of the insertion direction, and the connecting block can move relative to the mounting seat in the first plane to correct the translation error in the direction perpendicular to the insertion direction, thereby realizing the error correction function in multiple directions, ensuring the assembly precision, and the error correction direction range is wide, and the application range is wide. By arranging the first positioning structure and the second positioning structure, after the assembly of one component is completed, the connecting block can be moved to the initial position relative to the mounting block by the first positioning structure, the mounting block can be rotated to the initial position relative to the mounting seat by the second positioning structure, and the connecting block can be rotated to the initial position relative to the mounting seat, so as to ensure the connection precision of the execution unit connected by the connecting block and the subsequent component.

[0030] 2、The first positioning groove and the first positioning ball in the first positioning structure are coaxial when the connecting block is in the initial position, the first positioning ball moves to leave a gap between the first positioning groove and the first positioning ball, the connecting block can move in the first plane relative to the mounting block, at this time, the error can be corrected by the movement of the connecting block, and the limit distance of the error correction is the gap width between the first positioning ball and the first positioning groove side wall, when the first positioning ball is driven to move to the first positioning groove side wall by the first driving member, due to the change of the diameter of the first positioning groove, the side wall of the first positioning groove is inclined, when the first positioning ball and the first positioning groove side wall abut and continue to move into the first positioning groove, the first positioning ball moves the connecting block until the first positioning ball side abuts the first positioning groove side, at this time, the first positioning groove and the first positioning ball are coaxial and the first positioning ball cannot continue to move; similarly, the cooperation of the second positioning groove and the second positioning ball in the second positioning structure allows the connecting block to rotate relative to the mounting seat, and allows the connecting block to rotate relative to the mounting seat to the initial position, the cooperation of the first positioning structure and the second positioning structure realizes the resetting function of the connecting block;

[0031] 3、The first piston and the second piston form a closed space between the first piston and the second piston and the bottom wall of the mounting cavity of the mounting seat, and a gas hole is formed on the mounting seat and connected with the external ventilation equipment, by ventilating into the closed space, the first piston and the second piston can move along the first axis direction to approach the connecting block, so as to drive the first positioning ball to move into the first positioning groove by the first piston, and drive the second positioning ball to move into the second positioning groove by the second piston, so as to realize the function of the first positioning structure and the second positioning structure to reset the connecting block to the initial position, that is, the connecting block can be reset to the initial position by ventilating into the closed space, which is simple in structure, low in cost and easy to automatically control. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The structure schematic diagram of the error correction device provided by the embodiment of the application is shown in the figure;

[0033] Figure 2 The top view schematic diagram of the error correction device provided by the embodiment of the application is shown in the figure;

[0034] Figure 3 The Figure 2 The sectional view schematic diagram along the A-A line in the figure;

[0035] Figure 4 The Figure 2 The sectional view schematic diagram along the B-B line in the figure;

[0036] Figure 5 The sectional view schematic diagram of the error correction device provided by the embodiment of the application in the ventilation state is shown in the figure.

[0037] The components represented by the reference numerals in the drawings are listed as follows:

[0038] 1, mounting seat; 11, main body; 111, mounting cavity; 12, end cover; 13, mounting plate; 131, second mounting hole; 2, mounting block; 21, first mounting hole; 3, connecting block; 4, connecting structure; 41, first guide rail; 411, first mounting groove; 42, first guide bearing; 43, first limiting groove; 44, second guide rail; 441, second mounting groove; 45, second guide bearing; 46, second limiting groove; 5, first intermediate plate; 6, second intermediate plate; 7, connecting bearing; 8, first positioning structure; 81, first positioning groove; 82, first positioning ball; 83, first piston; 9, second positioning structure; 91, second positioning groove; 92, second positioning ball; 93, second piston; 10, air hole. DETAILED DESCRIPTION

[0039] For the purpose of promoting an understanding of the principles of the application, reference will now be made to the embodiments illustrated in the drawings. There is shown in the drawings, by way of illustration, specific embodiments of the application. However, it should be apparent that the application can be practiced in a variety of forms and not limited to the embodiments described herein. In fact, the application is intended to cover all alternatives, modifications and equivalents.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0041] It is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device described herein is oriented in an orientation other than that shown in the figures, a spatially relative term that would ordinarily encompass the orientation shown in the figures would also encompass the orientation of the device in the new orientation. The devices can be otherwise oriented (for example, rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly.

[0042] It should be noted that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or connected through an intermediate element. "Connected" in the following embodiments, if the circuits, modules, units, etc. connected to each other have transmission of electrical signals or data between each other, should be understood as "electrically connected", "communicatively connected" and the like.

[0043] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It should be understood that the term "comprises / consists of" or "has / has at least" specifies the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0044] Referring to Figures 1-5 As shown in the drawings, the error correction device provided by the embodiments of the present application comprises a mounting seat 1, a mounting block 2, a connecting block 3, a first positioning structure 8 and a second positioning structure 9. The mounting seat 1, the mounting block 2 and the connecting block 3 are arranged in sequence along a first axis direction. The mounting block 2 is rotatably connected to the mounting seat 1 about the first axis. The connecting block 3 is connected to the mounting block 2 and is movable relative to the mounting block 2 in a first plane perpendicular to the first axis. The first positioning structure 8 is arranged between the connecting block 3 and the mounting block 2 and is used to drive the connecting block 3 to move relative to the mounting block 2 to an initial position. The second positioning structure 9 is arranged between the mounting block 2 and the mounting seat 1 and is used to drive the mounting block 2 to rotate relative to the mounting seat 1 to the initial position.

[0045] Referring to Figures 1-4As shown, the connecting block 3 is connected with the mounting block 2 through a connecting structure 4, the connecting structure 4 comprises a first limiting structure and a second limiting structure, the first limiting structure comprises two first guide rails 41, the two first guide rails 41 are distributed on opposite sides of the mounting block 2 and are arranged along a first direction parallel to the first plane, a plurality of first guide bearings 42 are rotatably installed on the first guide rails 41, the axis of the first guide bearings 42 is parallel to the first axis, the plurality of first guide bearings 42 are arranged at intervals along the length direction of the first guide rails 41, a first limiting groove 43 is formed on the side surface of the mounting block 2 close to the first guide rails 41 along the first direction, and the first guide bearings 42 protrude into the first limiting groove 43. The second limiting structure comprises two second guide rails 44, the two second guide rails 44 are fixed with the two first guide rails 41, the two second guide rails 44 are distributed on opposite sides of the connecting block 3 and are arranged along a second direction parallel to the second plane, the second direction is perpendicular to the first direction, a plurality of second guide bearings 45 are rotatably installed on the second guide rails 44, the axis of the second guide bearings 45 is parallel to the first axis, the plurality of second guide bearings 45 are arranged at intervals along the length direction of the second guide rails 44, a second limiting groove 46 is formed on the side surface of the connecting block 3 close to the second guide rails 44 along the second direction, and the second guide bearings 45 protrude into the second limiting groove 46.

[0046] Through the setting of the first limiting structure, the first guide rails 41 can move relative to the mounting block 2 along the first direction, through the setting of the second limiting structure, the connecting block 3 can move relative to the first guide rails 41 along the second direction, and the first guide rails 41 and the second guide rails 44 are fixed, that is, the connecting block 3 can move relative to the mounting block 2 along the second direction, the first direction and the second direction are perpendicular and parallel to the first plane, thereby realizing the function that the connecting block 3 moves relative to the mounting block 2 in the first plane, at the same time, the setting of the first guide bearings 42 and the second guide bearings 45 can reduce the resistance of the connecting block 3 moving relative to the mounting block 2, so that the connecting block 3 is more likely to move, in order to more smoothly correct errors, and the connecting block 3 is limited from being separated from the mounting block 2 through the cooperation of the first guide bearings 42 and the first limiting groove 43 and the cooperation of the second guide bearings 45 and the second limiting groove 46.

[0047] Referring to Figures 3-4As shown, specifically, in the embodiment, the first guide rail 41 is provided with a first mounting groove 411 on the side wall close to the mounting block 2, the plurality of first guide bearings 42 on each first guide rail 41 are located in the first mounting groove 411 on the first guide rail 41, and the first guide bearings 42 are mounted on the first guide rail 41 through the first pin shaft; the second guide rail 44 is provided with a second mounting groove 441 on the side wall close to the connecting block 3, the plurality of second guide bearings 45 on each second guide rail 44 are located in the second mounting groove 441 on the second guide rail 44, and the second guide bearings 45 are mounted on the second guide rail 44 through the second pin shaft. In the embodiment, the first limiting groove 43 on the mounting block 2 and the second limiting groove 46 on the connecting block 3 are both grooves with V-shaped cross sections, the first guide bearings 42 are in contact with the side wall of the first limiting groove 43 in the first limiting groove 43, and the second guide bearings 45 are in contact with the side wall of the second limiting groove 46 in the second limiting groove 46.

[0048] Referring to Figures 3-4 As shown, further, the mounting block 2 is fixedly connected with a first intermediate plate 5 and a second intermediate plate 6 located between the mounting block 2 and the mounting seat 1, the plane of the first intermediate plate 5 and the plane of the second intermediate plate 6 are both perpendicular to the first axis, the second intermediate plate 6 is located between the first intermediate plate 5 and the mounting block 2, and the first intermediate plate 5 and the second intermediate plate 6 are rotatably connected with the mounting seat 1 through a connecting bearing 7.

[0049] Referring to Figures 3-4 As shown, specifically, the first intermediate plate 5 and the second intermediate plate 6 are both circular and coaxial with the first axis, the first intermediate plate 5 and the second intermediate plate 6 are fixed with the mounting block 2 through bolts, and the connecting bearing 7 is arranged between the first intermediate plate 5 and the second intermediate plate 6; the mounting seat 1 comprises a main body part 11 and an end cover 12, the end cover 12 is located between the main body part 11 and the mounting block 2 and is fixed with the main body part 11 through bolts, the end cover 12 is provided with a through hole for the first intermediate plate 5 and the second intermediate plate 6 to pass through, the diameter of the through hole is consistent with the diameter of the first intermediate plate 5 and the second intermediate plate 6, the first intermediate plate 5 passes through the through hole, the second intermediate plate 6 is located in the through hole and the mounting block 2 is in contact with the end cover 12; the end cover 12 is provided with a bearing groove coaxial with the through hole and located on the side of the through hole away from the mounting block 2, the diameter of the bearing groove is greater than the diameter of the through hole, and the connecting bearing 7 is arranged in the bearing groove and the outer diameter of the connecting bearing 7 is consistent with the outer diameter of the bearing groove. The first intermediate plate 5 and the second intermediate plate 6 relatively fix the connecting bearing 7 in the axial direction with the mounting block 2, and through the arrangement of the end cover 12, the through hole and the bearing groove thereon, the bearing is arranged in the bearing groove to realize the rotational connection between the mounting block 2 and the mounting seat 1, and at the same time, the mounting block 2 and the mounting seat 1 are limited to be separated.

[0050] Referring to Figures 3-5As shown, further, the first positioning structure 8 comprises a first positioning groove 81, a first positioning ball 82 and a first driving member. The first positioning groove 81 is arranged on the side of the connecting block 3 close to the mounting block 2, and the diameter of the first positioning groove 81 gradually decreases along the direction perpendicular to the first plane and away from the mounting block 2. The first positioning ball 82 is arranged on the mounting block 2 and protrudes into the first positioning groove 81. The first positioning ball 82 is movable along the direction perpendicular to the first plane, and can be moved to have a gap with the side wall of the first positioning groove 81 or abut against the side wall of the first positioning groove 81. The first driving member is arranged on the mounting block 2 and is used to drive the first positioning ball 82 to abut against the side wall of the first positioning groove 81, so as to drive the connecting block 3 to move relative to the mounting block 2 to the initial position through the cooperation of the first positioning ball 82 and the first positioning groove 81.

[0051] Referring to Figures 3-5 As shown, specifically, in the embodiment, the side of the connecting block 3 close to the mounting block 2 is parallel to the first plane, the first positioning groove 81 is a circular truncated cone-shaped groove, and the first positioning groove 81 is coaxial with the first axis when the connecting block 3 is in the initial position. The first positioning ball 82 is coaxial with the first axis, a first mounting hole 21 coaxial with the first axis is arranged on the mounting block 2, and the first positioning ball 82 is arranged in the first mounting hole 21 and has the same diameter. The first driving member drives the first positioning ball 82 to move in the first mounting hole 21 towards the connecting block 3.

[0052] Referring to Figures 3-5 As shown, further, since the first intermediate plate 5 and the second intermediate plate 6 are arranged between the mounting block 2 and the mounting seat 1, the second positioning structure 9 is arranged between the first intermediate plate 5 and the mounting seat 1. The second positioning structure 9 comprises a second positioning groove 91, a second positioning ball 92 and a second driving member. The second positioning groove 91 is arranged on the side of the first intermediate plate 5 close to the mounting seat 1, the second positioning groove 91 is spaced apart from the first axis in the direction perpendicular to the first axis, and the diameter of the second positioning groove 91 gradually decreases along the direction perpendicular to the first plane and away from the mounting seat 1. The second positioning ball 92 is arranged on the mounting seat 1 and protrudes into the second positioning groove 91. The second positioning ball 92 is movable along the direction perpendicular to the first plane, and can be moved to have a gap with the side wall of the second positioning groove 91 or abut against the side wall of the second positioning groove 91. The second driving member is arranged on the mounting seat 1 and is used to drive the second positioning ball 92 to abut against the side wall of the second positioning groove 91, so as to drive the mounting block 2 to rotate relative to the mounting seat 1 to the initial position through the cooperation of the second positioning ball 92 and the second positioning groove 91.

[0053] Referring to Figures 3-5As shown, further, the main body part 11 of the mounting base 1 is provided with a mounting cavity 111 coaxial with the first axis, the mounting cavity 111 is open at the side close to the end cover 12, and the first intermediate plate 5 is located in the mounting cavity 111; and the mounting base 1 further comprises a mounting plate 13 arranged in the mounting cavity 111, the mounting plate 13 is perpendicular to the first axis, the mounting plate 13 is fixed to the main body part 11 by bolts, and the second positioning ball 92 is arranged on the mounting plate 13; correspondingly, the mounting plate 13 is provided with a second mounting hole 131 for mounting the second positioning ball 92, the second mounting hole 131 is parallel to the first axis, and the diameter of the second positioning ball 92 is greater than the thickness of the mounting plate 13.

[0054] Referring to Figures 3-5 As shown, the first driving member comprises a first piston 83, one end of the first piston 83 is arranged in the first mounting hole 21 and in contact with the first positioning ball 82, and the other end of the first piston 83 extends into the accommodating space through the second intermediate plate 6, the first intermediate plate 5 and the mounting plate 13, the first mounting hole 21 penetrates the mounting block 2, and the first piston 83 is movable along the first axis direction; the second driving member comprises a second piston 93 arranged in the mounting cavity 111, the second piston 93 is located at the side of the mounting plate 13 away from the first intermediate plate 5, the second mounting hole 131 penetrates the mounting plate 13, and the second piston 93 is movable along the first axis direction and can be moved into contact with the second positioning ball 92.

[0055] Referring to Figures 3-5 As shown, in order to drive the first piston 83 to move close to the connecting block 3 and drive the second piston 93 to move close to the mounting plate 13, the first piston 83 is connected with the second piston 93, and the second piston 93 is sealingly connected with the side wall of the mounting cavity 111, so that a sealed space is formed between the second piston 93 and the bottom wall of the mounting cavity 111 away from the first intermediate plate 5; the mounting base 1 is provided with an air hole 10 on the main body part 11 to communicate with the sealed space, and an external air supply device is connected to the air hole 10, so that air is supplied into the sealed space through the air supply device to drive the second piston 93 and the first piston 83 to move, thereby driving the first positioning ball 82 and the second positioning ball 92 to move, and achieving the function of driving the connecting block 3 and the mounting block 2 to reset to the initial position. In the embodiment, the second piston 93 is sealingly connected with the side wall of the mounting cavity 111 by a sealing ring.

[0056] Referring to ​ As shown, further, in the embodiment, the diameter of the first positioning ball 82 is greater than the diameter of the second positioning ball 92, and the second positioning ball 92 is provided in plurality, and the plurality of second positioning balls 92 are arranged in a circumferential direction along the first axis, and correspondingly, the second positioning groove 91 is provided in plurality, and the second positioning groove 91 corresponds to the second positioning ball 92 one by one.

[0057] Referring to ​As shown, further, to make the first piston 83 drive the first positioning ball 82 to move a distance enough to reset the connecting block 3 to the initial position, the first piston 83 is arranged to pass through the second piston 93 and is movable relative to the second piston 93 along the first axis direction, and the first piston 83 is sealingly connected with the second piston 93; specifically, the second piston 93 is provided with a through hole for the first piston 83 to pass through, and the first piston 83 passes through the through hole and is sealingly connected with the side wall of the through hole by a sealing ring, so that when the second piston 93 drives the second positioning ball 92 to move to the maximum distance, the first piston 83 can still move to drive the first positioning ball 82 to move to the maximum distance, so that the connecting block 3 is reset to the initial position.

[0058] The implementation principle of the embodiment is that when no air is supplied into the sealed space, a gap is left between the first positioning ball 82 and the side wall of the first positioning groove 81, and a gap is left between the second positioning ball 92 and the side wall of the second positioning groove 91, the connecting block 3 can move relative to the mounting block 2 in the first plane, and the mounting block 2 can rotate relative to the mounting seat 1 about the first axis, at this time, the translational error in the direction perpendicular to the insertion direction can be corrected by the translation of the connecting block 3 in the first plane, and the rotational error in the insertion direction can be corrected by the rotation of the connecting block 3 about the first axis, so as to realize multi-directional error correction compensation; after completing one assembly, air is supplied into the sealed space between the first piston 83 and the second piston 93 and the bottom wall of the mounting cavity 111 by the air supply device, the first piston 83 is driven to move close to the connecting block 3, and the second piston 93 is driven to move close to the mounting plate 13, so that the first positioning ball 82 moves close to the connecting block 3, and the second positioning ball 92 moves close to the first intermediate plate 5, the first positioning ball 82 and the side wall inclined surface of the first positioning groove 81 cooperate to drive the connecting block 3 to move to the initial position in the first plane, and the second positioning ball 92 and the side wall inclined surface of the second positioning groove 91 cooperate to drive the mounting block 2 to rotate to the initial position about the first axis, so as to reset the connecting block 3 to the initial position, and keep the connecting block 3 in the initial position, so as to ensure the connection accuracy of the execution unit connected by the connecting block 3 and the subsequent component to be assembled, and realize high-precision positioning.

[0059] In the present application, the cooperation of the first guide rail 41, the first guide bearing 42 and the V-shaped first limiting groove 43 on the mounting block 2 realizes the position adjustment of the connecting block 3 in the first direction in the first plane, the cooperation of the second guide rail 44, the second guide bearing 45 and the V-shaped second limiting groove 46 on the connecting block 3 realizes the position adjustment of the connecting block 3 in the second direction in the second plane, the assembly is simple, the problem of assembly of the linear guide rail type error correction device can be solved, the first guide bearing 42 is in contact with the mounting block 2, the second guide bearing 45 is in contact with the connecting block 3, the gap is small, and the radial swing of the connecting block 3 is very small; the whole device has few parts, a wide adjustable range, a simple structure and low cost, and can be widely used in the field of automatic industry.

[0060] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An error correction device, characterized by, The utility model relates to a kind of installation base, including: Mounting seat (1), mounting block (2) and connecting block (3) are distributed along the first axis direction in turn, the mounting block (2) is rotatably connected on the mounting seat (1) around the first axis, the connecting block (3) is connected on the mounting block (2), and it can be moved to the mounting block (2) in the first plane perpendicular to the first axis relative; First positioning structure (8), it is located between the connecting block (3) and the mounting block (2), for driving the connecting block (3) to move to initial position relative to the mounting block (2); Second positioning structure (9), it is located between the mounting block (2) and the mounting seat (1), for driving the mounting block (2) to rotate to initial position relative to the mounting seat (1); The first positioning structure (8) includes: First positioning groove (81), it is located on the side of the connecting block (3) close to the mounting block (2), and the first positioning groove (81) gradually decreases in diameter along the direction perpendicular to the first plane and away from the mounting block (2); First positioning ball (82), it is located on the mounting block (2) and protrudes in the first positioning groove (81), and the first positioning ball (82) can be moved in the direction perpendicular to the first plane, and can be moved to have gap between the first positioning groove (81) side wall or with the first positioning groove (81) side wall resistance; First driving member, it is located on the mounting block (2), for driving the first positioning ball (82) to move to with the first positioning groove (81) side wall resistance, to drive the connecting block (3) to move to initial position relative to the mounting block (2) by the first positioning ball (82) with the first positioning groove (81) cooperation; The mounting block (2) is fixedly connected with the first intermediate plate (5) and the second intermediate plate (6) between the mounting block (2) and the mounting seat (1), the first intermediate plate (5) plane and the second intermediate plate (6) plane are perpendicular to the first axis, the second intermediate plate (6) is located between the first intermediate plate (5) and the mounting block (2), and the first intermediate plate (5) and the second intermediate plate (6) are rotatably connected with the mounting seat (1) by connecting bearing (7), and the second positioning structure (9) is located between the first intermediate plate (5) and the mounting seat (1).

2. The error correction apparatus according to claim 1, characterized by The second positioning structure (9) includes: Second positioning groove (91), it is located on the side of the first intermediate plate (5) close to the mounting seat (1), and the second positioning groove (91) is spaced apart in the direction perpendicular to the first axis with the first axis, and the second positioning groove (91) gradually decreases in diameter along the direction perpendicular to the first plane and away from the mounting seat (1); Second positioning ball (92), it is located on the mounting seat (1) and protrudes in the second positioning groove (91), and the second positioning ball (92) can be moved in the direction perpendicular to the first plane, and can be moved to have gap between the second positioning groove (91) side wall or with the second positioning groove (91) side wall resistance; A second driving member is arranged on the mounting seat (1) and used to drive the second positioning ball (92) to abut against the sidewall of the second positioning groove (91) so as to drive the mounting block (2) to rotate to an initial position relative to the mounting seat (1) through cooperation of the second positioning ball (92) and the second positioning groove (91).

3. The error correction apparatus of claim 2, wherein: The mounting seat (1) is provided with a mounting cavity (111) coaxial with the first axis, and a mounting plate (13) perpendicular to the first axis is arranged in the mounting cavity (111), the mounting plate (13) is provided with a second mounting hole (131) parallel to the first axis, the second positioning ball (92) is arranged in the second mounting hole (131), and the diameter of the second positioning ball (92) is greater than the thickness of the mounting plate (13). The second driving member comprises a second piston (93) arranged in the mounting cavity (111), the second piston (93) is located on the side of the mounting plate (13) away from the first intermediate plate (5), and the second piston (93) is movable along the first axis and can be in contact with the second positioning ball (92).

4. The error correction apparatus according to claim 3, characterized by: The second piston (93) is sealingly connected with the sidewall of the mounting cavity (111), so that a closed space is formed between the second piston (93) and the bottom wall of the mounting cavity (111) away from the first intermediate plate (5).

5. The error correction apparatus of claim 4, wherein: The mounting block (2) is provided with a first mounting hole (21) coaxial with the first axis, and the first positioning ball (82) is arranged in the first mounting hole (21). The first driving member comprises a first piston (83) coaxial with the first axis, the first piston (83) is located between the mounting block (2) and the mounting seat (1) and is movable along the first axis, one end of the first piston (83) is arranged in the first mounting hole (21) and is in contact with the first positioning ball (82), and the other end of the first piston (83) is connected with the second piston (93) after penetrating through the second intermediate plate (6), the first intermediate plate (5) and the mounting plate (13).

6. The error correction apparatus of claim 5, wherein: The first piston (83) penetrates through the second piston (93) and is movable relative to the second piston (93) along the first axis, and the first piston (83) is sealingly connected with the second piston (93).

7. The error correction apparatus of claim 4, wherein: The mounting seat (1) is provided with an air hole (10) communicating with the closed space.

Images