Hole alignment device

Abstract

The present application relates to the technical field of mechanical assembly, and in particular to an alignment device for holes. The alignment device for holes is used to align the pin holes of a first component and a second component; the alignment device for holes includes a driving mechanism and an auxiliary fitting; the driving mechanism is connected to one end of the auxiliary fitting to drive the auxiliary fitting to reciprocate along a first direction; the first component and the second component are located at the other end of the auxiliary fitting, and the auxiliary fitting and the pin hole to be assembled are substantially on the same axis; the head end of the auxiliary fitting facing the pin hole is tapered, so that the head end of the auxiliary fitting can smoothly enter the pin hole under the drive of the driving mechanism; then the auxiliary fitting continues to move forward until the outer wall of the cylinder of the auxiliary fitting can simultaneously abut against the inner walls of the pin holes of the first component and the second component, thereby conveniently and quickly completing the alignment of the first component and the second component, and enabling the pin to smoothly insert into the pin holes of the first component and the second component.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical assembly, and more particularly to a hole alignment device. Background Art

[0002] At present, when assembling the working devices of large mechanical equipment such as excavators, the structural members need to be connected by pin shafts; before assembling the pin shafts, the pin holes of the structural members to be connected need to be aligned, and the hole alignment accuracy needs to reach the wire level so that the pin shafts can be smoothly inserted into the pin holes of the structural members to be connected; however, at present, the alignment of the pin holes between the structural members is realized manually, and the hole alignment accuracy mainly depends on the experience of the operator. The installation of one pin shaft often requires repeated disassembly of the pin shaft and multiple adjustments of the relative positions between the structural members, which is time-consuming, laborious and inefficient. Summary of the Invention

[0003] The purpose of the present invention is to provide a hole alignment device to solve, to a certain extent, the technical problems of time-consuming, laborious and low efficiency in the prior art of pin shaft equipment.

[0004] The present invention provides a hole alignment device, including a driving mechanism and an auxiliary fitting; the auxiliary fitting extends along a first direction; the auxiliary fitting is adapted to the pin hole to be aligned, and one end of the auxiliary fitting facing the pin hole to be aligned is tapered; the driving mechanism can drive the auxiliary fitting to reciprocate along the first direction so that the auxiliary fitting can extend into or withdraw from the pin hole to be aligned.

[0005] Further, the driving mechanism includes a rotary driving device, a transmission screw rod and a positioning disk; the positioning disk is provided with an internally threaded through hole, and the internally threaded through hole is adapted to the transmission screw rod so that the transmission screw rod is screwed to the positioning disk; one end of the transmission screw rod is connected to the auxiliary fitting, and the other end of the transmission screw rod is connected to the rotary driving device; the rotary driving device can drive the transmission screw rod to rotate.

[0006] Further, the driving mechanism further includes a slide rail; the rotary driving device is slidably connected to the slide rail so that the rotary driving device can reciprocate along the first direction.

[0007] Further, one end of the auxiliary fitting facing the pin hole to be aligned is conical, and one end of the auxiliary fitting away from the pin hole to be aligned is cylindrical.

[0008] Further, an externally threaded connecting portion is formed at one end of the transmission screw rod facing the auxiliary fitting; an internally threaded connecting hole is formed at one end of the auxiliary fitting facing the transmission screw rod, and the internally threaded connecting hole is adapted to the externally threaded connecting portion so that the auxiliary fitting is screwed to the transmission screw rod.

[0009] Further, the rotation driving device is a variable-frequency motor.

[0010] Further, a connection portion is formed at one end of the transmission screw rod away from the auxiliary fitting; the transmission screw rod is connected to the coupling of the rotation driving device through the connection portion.

[0011] Further, the number of the positioning disks is multiple, and the multiple positioning disks are arranged at intervals along the first direction.

[0012] Further, a chromium plating layer is provided on the outer surface of the transmission screw rod.

[0013] Further, the diameter of the column body of the auxiliary fitting is 120 - 250 mm.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The hole alignment device provided by the present invention is used to align the pin holes of the first member and the second member to be connected, so that the pin used to connect the first member and the second member can be smoothly inserted into the pin holes of the first member and the second member; the hole alignment device includes a driving mechanism and an auxiliary fitting, and the auxiliary fitting is adapted to the pin holes of the first member and the second member, so that the auxiliary fitting can just be inserted into the pin holes of the first member and the second member. When the auxiliary fitting is simultaneously inserted into the pin holes of the first member and the second member, the pin holes of the first member and the second member will be aligned. The length direction of the auxiliary fitting extends along the first direction, and one end of the length direction of the auxiliary fitting is connected to the driving mechanism, and the driving mechanism can drive the auxiliary fitting to reciprocate along the first direction; the other end of the length direction of the auxiliary fitting, that is, the head end of the auxiliary fitting, is tapered, so that the head end of the auxiliary fitting has a smaller through diameter. During operation, the first member and the second member are placed on one side close to the head end of the auxiliary fitting, and the pin holes of the first member and the second member are substantially aligned, and the axial directions of the pin holes of the first member and the second member are substantially on the same axis as the axial direction of the auxiliary fitting; the driving mechanism drives the auxiliary fitting to move towards the first member and the second member along the first direction. Since the head end of the auxiliary fitting is tapered, the head end of the auxiliary fitting can smoothly enter the pin holes of the first member and the second member at the end facing the auxiliary fitting; then continue to push the auxiliary fitting forward until the outer wall of the column body of the auxiliary fitting can simultaneously abut against the inner walls of the pin holes of the first member and the second member, so as to conveniently and quickly complete the alignment of the first member and the second member, and the pin used to connect the first member and the second member can be smoothly inserted into the pin holes of the first member and the second member. Description of the Drawings

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Structural schematic diagram of the hole-aligning device provided by an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the hole-aligning device provided by an embodiment of the present invention when aligning the first component and the second component.

[0019] Reference numerals:

[0020] 1 - Auxiliary fitting, 2 - Rotary drive device, 3 - Transmission screw, 4 - Positioning disk, 5 - Slide rail, 6 - First component, 7 - Second component, 8 - Pin hole, 9 - Pin, a - First direction. Specific embodiments

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of them. Usually, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0022] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0023] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of the embodiments of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them.

[0026] For ease of description, spatial relationship terms such as "above", "upper", "below", and "lower" can be used here to describe the relationship between one element and another as shown in the drawings. Such spatial relationship terms are intended to include different orientations of the device during use or operation in addition to the orientation depicted in the drawings.

[0027] The terms used herein are only for describing various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including", and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof that exist, but do not preclude the existence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0028] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings, but include changes in shape that occur during manufacturing.

[0029] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application. Additionally, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0030] Refer to the following Figure 1 and Figure 2 to describe the hole alignment device according to some embodiments of the present application.

[0031] The present application provides a hole alignment device for aligning the pin holes 8 of the first member 6 and the second member 7; as Figure 1 shown, the hole alignment device includes a driving mechanism and an auxiliary fitting 1; the auxiliary fitting 1 and the axis direction of the pin hole 8 both extend along the first direction a, and the auxiliary fitting 1 is located at one end of the pin hole 8 along the first direction a; the auxiliary fitting 1 is adapted to the pin hole 8 so that the auxiliary fitting 1 can extend into the pin hole 8, and one end of the auxiliary fitting 1 facing the pin hole 8 is tapered; the driving mechanism can drive the auxiliary fitting 1 to reciprocate along the first direction a so that the auxiliary fitting 1 can extend into or withdraw from the pin hole 8.

[0032] The hole alignment device provided by the present application is used to align the pin holes 8 of the first member 6 and the second member 7 to be connected, so that the pin 9 used to connect the first member 6 and the second member 7 can be smoothly inserted into the pin holes 8 of the first member 6 and the second member 7. The hole alignment device includes a driving mechanism and an auxiliary fitting 1, and the auxiliary fitting 1 is adapted to the pin holes 8 of the first member 6 and the second member 7 so that the auxiliary fitting 1 can be exactly inserted into the pin holes 8 of the first member 6 and the second member 7. When the auxiliary fitting 1 is inserted into the pin holes 8 of the first member 6 and the second member 7 at the same time, the pin holes 8 of the first member 6 and the second member 7 will be aligned. The length direction of the auxiliary fitting 1 extends along the first direction a, and one end of the length direction of the auxiliary fitting 1 is connected to the driving mechanism, and the driving mechanism can drive the auxiliary fitting 1 to reciprocate along the first direction a; the other end of the length direction of the auxiliary fitting 1, that is, the head end of the auxiliary fitting 1, is tapered so that the head end of the auxiliary fitting 1 has a smaller through diameter.

[0033] During operation, as Figure 2As shown, the first component 6 and the second component 7 to be assembled are placed on one side close to the head end of the auxiliary fitting 1, and the first component 6 and the second component 7 are pre-assembled so that the pin holes 8 of the first component 6 and the pin holes 8 of the second component 7 are roughly aligned, and the axial directions of the pin holes 8 of the first component 6 and the second component 7 and the axial direction of the auxiliary fitting 1 are roughly on the same axis; the driving mechanism drives the auxiliary fitting 1 to move towards the first component 6 and the second component 7 along the first direction a. Since the head end of the auxiliary fitting 1 is tapered, the head end of the auxiliary fitting 1 can smoothly enter the pin holes 8 at the end of the first component 6 and the second component 7 facing the auxiliary fitting 1; then the auxiliary fitting 1 is continuously pushed forward until the outer wall of the cylinder of the auxiliary fitting 1 can simultaneously abut against the inner walls of the pin holes 8 of the first component 6 and the second component 7, and the pin holes 8 of the first component 6 and the second component 7 will be aligned. After the pin holes 8 of the first component 6 and the second component 7 are aligned, the pin 9 for connecting the first component 6 and the second component 7 is inserted into the first component 6 and the second component 7 from the pin holes 8 at the other end of the first component 6 and the second component 7 away from the auxiliary fitting 1. At this time, since the first component 6 and the second component 7 are already aligned, the pin 9 can be smoothly inserted into the pin holes 8 of the first component 6 and the second component 7; after the pin 9 is inserted into the first component 6 and the second component 7 for a certain length, the driving mechanism drives the auxiliary fitting 1 to withdraw from the first component 6 and the second component 7, and then the pin 9 is continuously inserted to complete the assembly of the pin 9 of the first component 6 and the second component 7; thus, through the hole alignment device of the present application, the pin holes 8 of the first component 6 and the second component 7 to be assembled can be conveniently and quickly aligned, so that the pin 9 can be smoothly inserted into the first component 6 and the second component 7, and the assembly of the pin 9 of the first component 6 and the second component 7 is completed.

[0034] In an embodiment of the present application, preferably, as Figure 1 and Figure 2 shown, the driving mechanism includes a rotary driving device 2, a transmission screw 3 and a positioning disk 4; the positioning disk 4 is provided with an internally threaded through hole, and the internally threaded through hole is adapted to the transmission screw 3 so that the transmission screw 3 is screwed to the positioning disk 4; one end of the transmission screw 3 is connected to the auxiliary fitting 1, and the other end of the transmission screw 3 is connected to the rotary driving device 2; the rotary driving device 2 can drive the transmission screw 3 to rotate.

[0035] In this embodiment, the driving mechanism includes a rotary driving device 2, a transmission screw 3, and a positioning disk 4; the positioning disk 4 is fixedly installed, and an internally threaded through hole extending in the axial direction along the first direction a is provided on the positioning disk 4; the length direction of the transmission screw 3 extends along the first direction a, and the transmission screw 3 is adapted to the internally threaded through hole of the positioning disk 4, so that the transmission screw 3 can pass through the positioning disk 4 through the internally threaded through hole and be screwed with the positioning disk 4; when the transmission screw 3 rotates clockwise or counterclockwise around its own axis, since the positioning disk 4 is fixed, the transmission screw 3 will reciprocate along the first direction a.

[0036] The rotary driving device 2 is slidably connected to the slide rail 5, and the length direction of the slide rail 5 extends along the first direction a, so that the rotary driving device 2 can reciprocate along the first direction a; the driving end of the rotary driving device 2 is connected to one end of the transmission screw 3 in the length direction, and the other end of the transmission screw 3 in the length direction is connected to the auxiliary fitting 1. The rotary driving device 2 can drive the transmission screw 3 to rotate clockwise or counterclockwise, so that the transmission screw 3 and the auxiliary fitting 1 reciprocate along the first direction a, so that the auxiliary fitting 1 can be inserted into or withdrawn from the pin hole 8 of the first member 6 and the second member 7; at the same time, with the reciprocating movement of the transmission screw 3, the rotary driving device 2 is also driven by the transmission screw 3 to reciprocate along the first direction a on the slide rail 5 along with the transmission screw 3.

[0037] In this embodiment, preferably, the number of the positioning disks 4 is multiple, and the multiple positioning disks 4 are spaced apart along the first direction a, so that the transmission screw 3 can be stably supported by the positioning disks 4, and the transmission screw 3 can rotate stably and reciprocate along the first direction a.

[0038] In this embodiment, preferably, the rotary driving device 2 is a variable-frequency motor, a motor bracket is provided at the bottom of the variable-frequency motor, and the variable-frequency motor is slidably connected to the slide rail 5 through the motor bracket. One end of the transmission screw 3 facing the variable-frequency motor forms a connecting portion, and the connecting portion of the transmission screw 3 is connected to the output end of the variable-frequency motor through a coupling, so that the variable-frequency motor can drive the transmission screw 3 to rotate, and further the transmission screw 3 can reciprocate along the first direction a.

[0039] In this embodiment, preferably, as Figure 1As shown, one end of the auxiliary fitting 1 is cylindrical, and the through diameter of the cylindrical body is adapted to the pin shaft holes 8 of the first member 6 and the second member 7, so that the cylindrical body of the transmission screw 3 can just be inserted into the pin shaft holes 8 of the first member 6 and the second member 7 to align the first member 6 and the second member 7. One end of the auxiliary fitting 1 facing the first member 6 and the second member 7 is tapered. Preferably, the head end of the auxiliary fitting 1 is conical, so that the head end of the auxiliary fitting 1 has a smaller diameter, so that the head end of the auxiliary fitting 1 can smoothly extend into the pin shaft holes 8 of the first member 6 and the second member 7. And as the auxiliary fitting 1 continues to penetrate, the cylindrical body of the auxiliary fitting 1 can be smoothly inserted into the pin shaft holes 8 of the first member 6 and the second member 7 to align the first member 6 and the second member 7.

[0040] In this embodiment, preferably, as Figure 1 shown, the transmission screw 3 and the auxiliary fitting 1 are detachably connected; one end of the transmission screw 3 facing the auxiliary fitting 1 forms an external thread connection part, and one end of the auxiliary fitting 1 facing the transmission screw 3 forms an internal thread connection hole, and the internal thread connection hole is adapted to the external thread connection part, so that the auxiliary fitting 1 can be screwed with the transmission screw 3, and the auxiliary fitting 1 can be detached from the transmission screw 3; thus, the auxiliary fitting 1 can be replaced according to the size of the pin shaft holes 8 of the first member 6 and the second member 7 to be assembled. Preferably, the diameter of the cylindrical body of the auxiliary fitting 1 is 120-250 mm.

[0041] In this embodiment, preferably, the outer surface of the transmission screw 3 is provided with a chromium plating layer, so as to strengthen the hardness of the transmission screw 3, make the transmission screw 3 have good wear resistance, and improve the service life of the transmission screw 3.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hole alignment device, characterized in that, it is used to align the pin shafts holes of the first component and the second component, and the hole alignment device includes a driving mechanism and an auxiliary fitting; the auxiliary fitting extends along a first direction; the auxiliary fitting is adapted to the pin shaft hole to be aligned, and one end of the auxiliary fitting facing the pin shaft hole to be aligned is tapered, and the outer wall of the cylinder of the auxiliary fitting can be simultaneously abutted against the inner walls of the pin shaft holes of the first component and the second component; the driving mechanism can drive the auxiliary fitting to reciprocate along the first direction so that the auxiliary fitting can extend into or withdraw from the pin shaft hole to be aligned; the driving mechanism includes a rotary driving device, a transmission screw, a positioning disk and a slide rail, and the transmission screw is screwed to the positioning disk; one end of the transmission screw is connected to the auxiliary fitting, and the other end of the transmission screw is connected to the rotary driving device; the rotary driving device can drive the transmission screw to rotate; the rotary driving device is slidably connected to the slide rail so that the rotary driving device can reciprocate along the first direction.

2. The hole alignment device according to claim 1, characterized in that, the positioning disk is provided with an internally threaded through hole which is adapted to the transmission screw.

3. The hole alignment device according to claim 1, characterized in that, one end of the auxiliary fitting facing the pin shaft hole to be aligned is conical, and the other end of the auxiliary fitting away from the pin shaft hole to be aligned is cylindrical.

4. The hole alignment device according to claim 2, characterized in that, an externally threaded connecting portion is formed at one end of the transmission screw facing the auxiliary fitting; an internally threaded connecting hole is formed at one end of the auxiliary fitting facing the transmission screw, and the internally threaded connecting hole is adapted to the externally threaded connecting portion so that the auxiliary fitting is screwed to the transmission screw.

5. The hole alignment device according to claim 2, characterized in that, the rotary driving device is a variable frequency motor.

6. The hole alignment device according to claim 2, characterized in that, a connecting portion is formed at the other end of the transmission screw away from the auxiliary fitting; the transmission screw is connected to the coupling of the rotary driving device through the connecting portion.

7. The hole alignment device according to claim 2, characterized in that, the number of the positioning disks is multiple, and the multiple positioning disks are arranged at intervals along the first direction.

8. The hole alignment device according to claim 2, characterized in that, a chromium plating layer is provided on the outer surface of the transmission screw.

9. The hole alignment device according to claim 1, characterized in that, the diameter of the cylinder body of the auxiliary fitting is 120 - 250 mm.

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