CN113909849B - Device and method for assembling crossed rollers - Google Patents

Abstract

The invention discloses a device and a method for assembling crossed rollers, wherein the device comprises a supporting piece, a first assembling mechanism, a second assembling mechanism and a riveting mechanism, the supporting piece is used for enabling a retaining piece in the crossed rollers to move, and the central axes of two adjacent rollers are kept perpendicular to each other in the moving process, the first assembling mechanism is used for assembling the rollers into first assembling holes in the retaining piece, a first pressing mechanism is used for pressing the rollers assembled in the first assembling holes, the second assembling mechanism is used for assembling the rollers into second assembling holes in the retaining piece, the second pressing mechanism is used for pressing the rollers assembled in the second assembling holes, and the riveting mechanism is used for pressing first limiting parts in the first assembling holes and the second assembling holes towards the rollers so as to limit the rollers between the first limiting parts and the second limiting parts. The invention can realize the assembly of the crossed rollers and improve the assembly efficiency.

Description

Device and method for assembling crossed rollers

Technical Field

The invention relates to the technical field of automatic assembly, in particular to a device for assembling crossed rollers and a method for assembling the crossed rollers by using the device.

Background

In real life, cross rollers are often used, such as in measuring instruments, optical instruments and other linear motions requiring high precision. The crossed roller is a linear motion guide rail with high rigidity, high precision and compact structure, and comprises a retaining piece and a plurality of rollers arranged on the retaining piece, and the axes of two adjacent rollers form a 90-degree included angle. In the assembly process of the crossed roller, semi-automatic or full-automatic assembly is generally adopted. For the semi-automatic or full-automatic assembly mode, the roller posture can be kept relatively stable in the moving process along with the retainer, which is an urgent problem to be solved. Meanwhile, for the roller with smaller diameter, such as the diameter smaller than 2mm, after the roller is assembled on the retaining piece through the feeding mechanism, the roller can be separated from the retaining piece in the resetting process of the feeding mechanism due to light weight, so that the subsequent procedures are influenced, and the assembly efficiency is further reduced.

Disclosure of Invention

An object of the present invention is to provide an apparatus for assembling a cross roller capable of maintaining a stable posture of a roller during movement and improving assembly efficiency, and a method for assembling the cross roller.

In order to achieve the above object, the present invention provides an apparatus for assembling a cross roller, the cross roller including a holder and a plurality of rollers, the holder having a plurality of first and second assembling holes for assembling the rollers and alternately distributed, the first and second assembling holes each having a first and second limiting portion for limiting two ends of the roller, respectively, and axes of two adjacent rollers being perpendicular to each other, the apparatus comprising:

the roller bearing comprises a bearing piece, wherein a guide groove for the movement of a retaining piece is formed in the bearing piece, a positioning groove for enabling the central axes of two adjacent rollers to be perpendicular to each other in the movement process is formed in the guide groove, and the positioning groove comprises a first groove surface and a second groove surface which are perpendicular to each other;

the first assembling mechanism comprises a first feeding mechanism and a first pressing mechanism, the first feeding mechanism is used for assembling the roller into the first assembling hole and enabling the axis of the roller to be perpendicular to the first groove surface, and the first pressing mechanism is used for performing abutting processing on the roller assembled in the first assembling hole;

the second assembling mechanism comprises a second feeding mechanism and a second pressing mechanism, the second feeding mechanism is used for assembling the roller into the second assembling hole and enabling the axis of the roller to be perpendicular to the second groove surface, and the second pressing mechanism is used for performing abutting processing on the roller assembled in the second assembling hole;

the riveting mechanism is arranged at the downstream of the first assembling mechanism and the second assembling mechanism and used for abutting against the first limiting part in the first assembling hole and the second assembling hole to the roller direction so as to limit the roller between the first limiting part and the second limiting part

Preferably, the first feeding mechanism comprises a first feeding part, a first clamping part and a first clamping part, a first material channel for the roller to enter the first assembling hole is formed in the first feeding part, the axis of the first material channel is perpendicular to the first groove surface, and the first clamping part and the second clamping part are used for extending into the first material channel to clamp the roller to the first assembling hole.

Preferably, the second feeding mechanism comprises a second feeding part, a third clamping part and a fourth clamping part, a second material channel for the roller to enter the second assembling hole is formed in the second feeding part, the axis of the second material channel is perpendicular to the second groove surface, and the third clamping part and the fourth clamping part are used for extending into the second material channel to clamp the roller to the second assembling hole.

Preferably, the first pressing mechanism comprises a first pressing piece and a first pressing driving mechanism, the first pressing piece is connected with the first pressing driving mechanism, and the first pressing piece and the first material channel are arranged at an included angle.

Preferably, the second pressing mechanism comprises a second pressing piece and a second pressing driving mechanism, the second pressing piece is connected with the second pressing driving mechanism, and the second pressing piece and the second material channel are arranged at an included angle.

Preferably, the riveting mechanism comprises a first riveting piece and a second riveting piece which are arranged on two sides of the bearing piece, and a supporting piece arranged below the bearing piece, the first riveting piece is used for abutting a first limiting portion in the first assembling hole towards the roller direction, the second riveting piece is used for abutting a first limiting portion in the second assembling hole towards the roller direction, and the supporting piece is used for supporting the retaining piece in the abutting process.

Preferably, the first riveting piece and the second riveting piece are arranged at an included angle with the horizontal plane, and the first riveting piece and the second riveting piece are arranged vertically.

Preferably, the first feeding mechanism further comprises a first dislocation piece, the first dislocation piece is movably arranged on the first feeding piece, and a first containing hole communicated with the first material channel is formed in the first dislocation piece.

Preferably, the second feeding mechanism further comprises a second dislocation piece, the second dislocation piece is movably arranged on the second feeding piece, and a second containing hole communicated with the second material channel is formed in the second dislocation piece.

The invention also discloses a method for assembling a cross roller, the method comprising:

fitting the holder into the guide groove of the support;

the first feeding mechanism assembles the roller into the first assembling hole and enables the axis of the roller to be perpendicular to the first groove surface, the first pressing mechanism performs pressing treatment on the roller assembled in the first assembling hole, meanwhile, the second feeding mechanism assembles the roller into the second assembling hole and enables the axis of the roller to be perpendicular to the second groove surface, and the second pressing mechanism is used for performing pressing treatment on the roller assembled in the second assembling hole;

the riveting mechanism presses the first limiting parts in the first assembling hole and the second assembling hole against the roller direction so as to limit the roller between the first limiting part and the second limiting part.

The invention has the beneficial effects that:

(1) the invention can realize the automatic assembly of the crossed rollers, and in the assembly process, the rollers keep relatively stable posture in the moving process along with the retainer by arranging the corresponding positioning grooves, thereby facilitating the subsequent riveting treatment,

(2) the roller pressing mechanism is used for pressing the roller, so that the roller is kept in the assembling hole in the resetting process of the feeding mechanism, errors in the assembling process are avoided, and the assembling efficiency is improved.

Drawings

FIG. 1 is a perspective view of a cross roller;

FIG. 2 is a perspective view of a cross roller assembly apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic elevational view of the susceptor;

FIG. 4 is a perspective view of a first assembly mechanism;

FIG. 5 is an enlarged view of portion A of FIG. 4;

fig. 6 is a perspective view of the riveting mechanism.

Detailed Description

The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

The invention discloses a device for assembling crossed rollers, which can realize the assembly of the crossed rollers. As shown in fig. 1, the cross roller here includes a holder a and a plurality of rollers b, the holder a is provided with a plurality of first assembly holes c and second assembly holes d which are alternately distributed, and the first assembly holes c and the second assembly holes d are respectively provided with a first limiting part e and a second limiting part f for limiting two end parts of the rollers b; the rollers b are assembled in the first assembly holes c and the second assembly holes d, and the two end parts of the rollers b are limited by the first limiting parts e and the second limiting parts f so as to ensure that the rollers b can be limited in the corresponding assembly holes, and the axes of the two adjacent rollers b are perpendicular to each other.

Referring to fig. 2 and 3, the apparatus for assembling a cross roller according to an embodiment of the present invention includes a support member 10, a first assembling mechanism 20, a second assembling mechanism (not shown), and a riveting mechanism 30. The supporting member 10 is an elongated member, and has a guide groove 11 extending along a length direction thereof, and the guide groove 11 is used for moving the holding member a. Furthermore, a V-shaped positioning groove 12 is further arranged in the guide groove 11, the positioning groove 12 includes a first groove surface 12a and a second groove surface 12b which are vertically intersected, and the positioning groove 12 is used for enabling the axes of the rollers b to form an included angle with the horizontal plane in the moving process of the retainer a, and enabling the axes of two adjacent rollers b to be mutually vertically arranged in the moving process. In practice, during the movement of the rollers b with the holder a, the end of one roller b is in contact with the first grooved surface 12a and the end of the other roller b is in contact with the second grooved surface 12 b.

As shown in fig. 4 and 5, the first assembling mechanism 20 includes a first feeding mechanism and a first pressing mechanism, wherein the first feeding mechanism is configured to assemble the roller b in the first assembling hole c and to arrange the axis of the roller b perpendicular to the first groove surface 12 a; the first pressing mechanism is used for abutting the roller b assembled in the first assembling hole c so as to prevent the roller b from being separated from the first assembling hole c in the resetting process of the first feeding mechanism. In practice, for the roller b with the diameter size of 2mm or less, after being assembled in the first assembly hole c, the first feeding mechanism may separate the roller b from the first assembly hole c during the resetting process due to the small weight, so the above problem can be avoided by providing the first pressing mechanism.

As shown in fig. 4 and 5, the first feeding mechanism includes a first feeding member 21, a first clamping member 22, and a second clamping member 23. The first feeding part 21 is arranged on one side of the supporting part 10, at least one first material channel 21a is arranged on the first feeding part, the axis of the first material channel 21a is perpendicular to the first groove surface 12a, and the first material channel 21a is used for allowing the roller b to enter the first assembling hole c; the first and second clamping members 22 and 23 are adapted to extend into the first throat 21a to clamp the roller b from the first throat 21a into the first fitting hole c and bring the end of the roller b into contact with the first groove surface 12 a.

Further, the first feeding mechanism further includes a first dislocation piece 24, the first dislocation piece 24 is disposed on the first feeding piece 21 and can slide relative to the first feeding piece 21, and the first dislocation piece 24 is provided with at least one first accommodating hole 24a for accommodating the roller b. Each first containing hole 24a corresponds to one first material passage 21 a. In practice, the roller b is assembled in the first receiving hole 24a, and after the first displacement member 24 is moved to the position, the first receiving hole 24a is aligned with the first material passage 21a, so that the roller b in the first receiving hole 24a can enter the first material passage 21 a.

As shown in fig. 4 and 5, the first pressing mechanism includes a first pressing member 25 and a first pressing drive mechanism 26. The first pressing member 25 is connected to the first pressing driving mechanism 26, and the first pressing driving mechanism 26 can drive the first pressing member 25 to press the roller b in the first assembling hole c, so as to prevent the roller b from separating from the first assembling hole c due to the suction force generated in the process of resetting the first clamping member 22 and the second clamping member 23, thereby affecting subsequent assembly.

The structure of the second assembling mechanism is the same as that of the first assembling mechanism, and the second assembling mechanism comprises a second feeding mechanism and a second pressing mechanism, wherein the second feeding mechanism is used for assembling the rollers b in the second assembling holes d and enabling the axes of the rollers b to be perpendicular to the second groove surfaces 12 b; the second pressing mechanism is used for abutting the roller b assembled in the second assembling hole d so as to prevent the roller b from being separated from the first assembling hole c in the resetting process of the second feeding mechanism.

The second feeding mechanism comprises a second feeding part, a third clamping part and a fourth clamping part, the second feeding part is arranged on the other side of the supporting part 10, at least one second material channel is arranged on the second feeding part, the axis of the second material channel is perpendicular to the second groove surface 12b, and the second material channel is used for allowing the roller b to enter a second assembly; the third clamping piece and the fourth clamping piece are used for extending into the second material channel to clamp the roller b from the second material channel to the second assembling hole d and enable the end part of the roller b to be in contact with the second groove surface 12 b.

Furthermore, the second feeding mechanism further comprises a second dislocation piece, the second dislocation piece is arranged on the second feeding piece and can slide relative to the second feeding piece, and at least one second containing hole for containing the roller b is formed in the second dislocation piece. Each second containing hole corresponds to one second material channel. During implementation, the roller b is assembled in the second accommodating hole, and after the second dislocation piece moves to the right position, the second accommodating hole is aligned with the second material channel, so that the roller b in the second accommodating hole can enter the second material channel.

The second pressing mechanism comprises a second pressing piece and a second pressing driving mechanism. The second pressing part is connected with the second pressing driving mechanism, and the second pressing driving mechanism can drive the second pressing part to abut against the roller b in the second assembling hole d so as to prevent the roller b from being separated from the second assembling hole d by suction force generated in the resetting process of the third clamping part and the fourth clamping part and influence on subsequent assembly.

In this embodiment, the first clamping member 22, the second clamping member 23, the first displacement member 24, the third clamping member, the fourth clamping member and the second displacement member are all driven by corresponding driving mechanisms, for example, the first clamping member 22 can be driven by a material pushing driving mechanism, and the driving mechanism is preferably a cylinder. Of course, in other embodiments, a driving mechanism capable of driving to execute the corresponding action may be selected according to actual requirements.

As shown in fig. 6, the riveting mechanism 30 includes a first rivet 31, a second rivet 32, and a support 33. The first riveting piece 31 is arranged on one side of the support piece 10 and is used for pressing the first limiting part e in the first assembling hole c towards the roller b, so that the roller b is positioned in the first assembling hole c under the action of the first limiting part e and the second limiting part f; the second riveting piece 32 is arranged on the other side of the bearing piece 10 and is used for pressing the second limiting part f in the second assembling hole d towards the roller b so as to enable the lower limit of the action of the first limiting part e and the second limiting part f of the roller b to be positioned in the second assembling hole d; the supporting member 33 is disposed below the supporting member 10 and is used for supporting the retaining member a to prevent the retaining member a from being deformed by the first riveting member 31 and the second riveting member 32 during the pressing process.

Further, the first riveting member 31 and the second riveting member 32 are both arranged at an included angle with the horizontal plane, and the first riveting member 31 and the second riveting member 32 are preferably arranged vertically. The included angle between the first riveting piece 31 and the horizontal plane and the included angle between the second riveting piece 32 and the horizontal plane are arranged, so that the first limiting part e in the assembly hole is abutted to enable the first limiting part e to deform towards the roller b, and the roller b is limited in the assembly hole.

In this embodiment, the driving mechanisms of the first riveting member 31 and the second riveting member 32 are driven, for example, the first riveting member 31 can be driven by the first riveting driving mechanism, and the driving mechanism is preferably a cylinder. Of course, in other embodiments, a driving mechanism capable of driving the riveting member to perform a corresponding action may be selected according to actual requirements.

The working principle of the disclosed device for assembling crossed rollers is as follows:

the rollers b are placed in the first receiving holes 24a of the first and second displacements 24 and 11 by a manual or mechanical mechanism, while the retainers a are fitted in the guide grooves 11 of the bearers 10.

After the first dislocation piece 24 is assembled in place, the first containing hole 24a is aligned with the first material channel 21a, and the roller b in the first containing hole 24a can enter the first material channel 21a when the first dislocation piece 24 moves to the preset position under the action of the corresponding driving mechanism. Meanwhile, the second dislocation piece moves to a preset position under the action of the corresponding driving mechanism, the second containing hole is aligned with the second material channel, and the roller b in the second containing hole can enter the second material channel.

The first clamping piece 22 extends into the first material channel 21a under the action of the corresponding driving mechanism, the second clamping piece 23 also extends into the first material channel 21a, and the first clamping piece 22 and the second clamping piece 23 clamp the roller b and clamp the roller b in the first material channel 21a from the first material channel 21a to the first assembly hole c. Meanwhile, the third clamping piece extends into the second material channel under the action of the corresponding driving mechanism, the fourth clamping piece also extends into the second material channel, and the third clamping piece and the fourth clamping piece clamp the roller b and clamp the roller b in the second material channel into the second assembling hole d from the second material channel.

The retainer a drives the roller b to move to the riveting mechanism 30 during the movement. The first riveting piece 31 presses the first limiting part e in the first assembling hole c towards the roller b under the action of the corresponding driving mechanism, so that the lower limit of the roller b under the action of the first limiting part e and the second limiting part f is positioned in the first assembling hole c; the second riveting member 32 presses the second limiting portion f in the second assembling hole d toward the roller b under the action of the corresponding driving mechanism, so that the lower limit of the action of the first limiting portion e and the second limiting portion f of the roller b is located in the second assembling hole d. In the riveting process of the first riveting member 31 and the second riveting member 32, the retainer a is supported to avoid deformation of the retainer a caused by the abutting process of the first riveting member 31 and the second riveting member 32.

The automatic assembling device can realize the automatic assembling of the crossed rollers, and in the assembling process, the corresponding positioning grooves 12 are arranged, so that the posture of the roller b is kept relatively stable in the moving process along with the retaining piece a, the subsequent riveting treatment is convenient, meanwhile, the roller b is pressed by the pressing mechanism, the roller b is kept in the assembling hole in the resetting process of the feeding mechanism, the error in the assembling process is avoided, and the assembling efficiency is improved.

Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.

Claims (10)

1. A device for assembling crossed rollers, the crossed rollers comprise a holder and a plurality of rollers, the holder is provided with a plurality of first assembly holes and second assembly holes which are used for assembling the rollers and are alternately distributed, the first assembly holes and the second assembly holes are internally provided with a first limiting part and a second limiting part which respectively limit two ends of each roller, and the axes of two adjacent rollers are vertically arranged, the device is characterized by comprising:

the roller bearing comprises a bearing piece, wherein a guide groove for the movement of a retaining piece is formed in the bearing piece, a positioning groove for enabling the central axes of two adjacent rollers to be perpendicular to each other in the movement process is formed in the guide groove, and the positioning groove comprises a first groove surface and a second groove surface which are perpendicular to each other;

the first assembling mechanism comprises a first feeding mechanism and a first pressing mechanism, the first feeding mechanism is used for assembling the roller into the first assembling hole and enabling the axis of the roller to be perpendicular to the first groove surface, and the first pressing mechanism is used for performing abutting processing on the roller assembled in the first assembling hole;

the second assembling mechanism comprises a second feeding mechanism and a second pressing mechanism, the second feeding mechanism is used for assembling the roller into the second assembling hole and enabling the axis of the roller to be perpendicular to the second groove surface, and the second pressing mechanism is used for performing abutting processing on the roller assembled in the second assembling hole;

and the riveting mechanism is arranged at the downstream of the first assembling mechanism and the second assembling mechanism and used for abutting against the first limiting part in the first assembling hole and the second assembling hole to the roller direction so as to limit the roller between the first limiting part and the second limiting part.

2. The device of claim 1, wherein the first feeding mechanism comprises a first feeding member, a first clamping member and a first clamping member, the first feeding member is provided with a first material channel for the rollers to enter the first assembly holes, the axis of the first material channel is vertical to the first groove surface, and the first clamping member and the second clamping member are used for extending into the first material channel to clamp the rollers into the first assembly holes.

3. The device of claim 1, wherein the second feeding mechanism comprises a second feeding member, a third clamping member and a fourth clamping member, the second feeding member is provided with a second material channel for the rollers to enter the second assembly holes, the axis of the second material channel is perpendicular to the second groove surface, and the third clamping member and the fourth clamping member are used for extending into the second material channel to clamp the rollers into the second assembly holes.

4. The device of claim 1, wherein the first pressing mechanism comprises a first pressing member and a first pressing driving mechanism, the first pressing member is connected with the first pressing driving mechanism, and the first pressing member and the first material channel are arranged at an included angle.

5. The device of claim 1, wherein the second pressing mechanism comprises a second pressing member and a second pressing driving mechanism, the second pressing member is connected with the second pressing driving mechanism, and the second pressing member and the second material channel are arranged at an included angle.

6. The device of claim 1, wherein the riveting mechanism comprises a first riveting member and a second riveting member which are arranged at two sides of the support member, and a support member which is arranged below the support member, the first riveting member is used for pressing the first limiting part in the first assembling hole towards the roller direction, the second riveting member is used for pressing the first limiting part in the second assembling hole towards the roller direction, and the support member is used for supporting the holding member in the pressing process.

7. The device of claim 6, wherein the first rivet and the second rivet are both disposed at an angle to the horizontal, and the first rivet and the second rivet are disposed vertically.

8. The apparatus according to claim 2, wherein the first feeding mechanism further comprises a first displacement member movably disposed on the first feeding member, and the first displacement member is provided with a first receiving hole capable of communicating with the first channel.

9. The device according to claim 3, wherein the second feeding mechanism further comprises a second dislocation piece, the second dislocation piece is movably arranged on the second feeding piece, and a second containing hole which can be communicated with the second material channel is formed in the second dislocation piece.

10. A method of assembling a cross roller based on the apparatus of any one of claims 1 to 9, the method comprising:

fitting the holder into the guide groove of the support;

the first feeding mechanism assembles the roller into the first assembling hole and enables the axis of the roller to be perpendicular to the first groove surface, the first pressing mechanism performs pressing treatment on the roller assembled in the first assembling hole, meanwhile, the second feeding mechanism assembles the roller into the second assembling hole and enables the axis of the roller to be perpendicular to the second groove surface, and the second pressing mechanism is used for performing pressing treatment on the roller assembled in the second assembling hole;

riveting mechanism supports the pressure with the first spacing portion in first pilot hole and the second pilot hole to the roller direction to spacing the roller between first spacing portion and the spacing portion of second.

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