CN204295547U - Centralising device - Google Patents

Abstract

The utility model relates to a centering device, which comprises a first workbench and a second workbench arranged front and back, and also includes a guide rail whose guiding direction extends along the front and rear directions, wherein one workbench is guided and moved on the guide rail, and the other workbench The guide movement is assembled on the guide rail or is fixedly installed. A height adjustment mechanism capable of outputting linear motion in the up and down direction is provided on the first workbench. Positioning structure, the second workbench is provided with a positioning structure for positioning and cooperating with the second workpiece so that the positions of the first workpiece and the second workpiece are consistent in the left and right directions. The utility model solves the problems in the prior art that the left and right positions and the up and down positions of the workpiece are adjusted by means of a sling, which causes a large amount of labor for operators and low adjustment efficiency.

Description

Centering device

technical field

The utility model relates to a centering device.

Background technique

The alignment of two workpieces has always been a difficult problem in the field of assembly. For example, in the field of UHV interrupter, the cylinder of UHV interrupter includes the middle cylinder part and the left cylinder located on the left and right sides of the middle cylinder part. The body part and the right barrel part, these three parts need to be installed together during use. The problem existing in the prior art is: for the UHV circuit breaker, the volume and weight of the three components of the middle cylinder part, the left cylinder part and the right cylinder part are relatively large. When they are together, first fix the middle cylinder part on a workbench, then lift the left cylinder part by lifting equipment, adjust the left cylinder part so that the left cylinder part and the middle cylinder part are aligned, and the centering adjustment needs Adjusting the left and right position and up and down position of the left cylinder part, the process of adjusting the left and right position and up and down position of the left cylinder part through the spreader is very time-consuming, requires a lot of manpower and takes a lot of time to complete the assembly, the assembly efficiency is low, and The assembled product quality is also prone to defects.

Utility model content

The purpose of the utility model is to provide a centering device to solve the problems in the prior art that the left and right positions and the up and down positions of the workpiece are adjusted by the sling, which causes a large amount of labor for the operator and low adjustment efficiency.

In order to solve the above problems, the technical solution of the utility model is:

The centering device includes a first workbench and a second workbench arranged front and back, and also includes a guide rail whose guiding direction extends along the front-to-rear direction, wherein one worktable is guided and moved on the guide rail, and the other workbench is guided and moved on the guide rail. The guide rail is or fixedly installed, and the first workbench is provided with a height adjustment mechanism capable of outputting linear motion in the up and down direction, and the linear motion output end of the height adjustment mechanism is provided with a placement structure for positioning the first workpiece in the left and right direction , the second workbench is provided with a positioning structure for positioning and cooperating with the second workpiece so that the positions of the first workpiece and the second workpiece are consistent in the left and right directions.

The positioning structure includes a positioning pin hole opened on the second workbench and a positioning pin for passing through the second workpiece and the positioning pin hole.

The first workbench is guided and moved on the guide rail, and the second workbench is fixedly arranged on the rear side of the first workbench.

The guide rail includes a left track and a right track arranged at intervals from left to right, the placement structure is located at the center of the left and right tracks, and the positioning structure positions the second workpiece at the center of the left and right tracks .

The height adjustment mechanism includes a screw rod whose axis extends along the left and right directions, and the screw on the screw rod is connected with forward-rotation screw nuts and reverse-rotation screw nuts arranged at left and right intervals, and the placement structure includes a screw nut fixed on the left-hand screw nut. The left bracket and the right bracket fixed on the right-hand screw nut, the upper ends of the left and right brackets have a support portion frictionally fitted with the first workpiece support.

The supporting part includes left and right supporting rollers which are respectively rotatably mounted on the upper ends of the left and right brackets.

The beneficial effects of the utility model are: since one of the worktables is guided and moved on the guide rail extending along the front and rear directions, and the other workbench is fixedly installed or guided and moved on the guide rail, two workbenches are realized through the guide rail. The relative movement between them realizes the relative movement of the first and second workpieces. The guide rail ensures that when the first and second workpieces move relative to each other, the left and right positions of the first and second workpieces will not change, and because the second worktable The positioning structure on the top makes the left and right positions of the second workpiece and the first workpiece the same, and the first workpiece can only be adjusted in the up and down direction when it is adjusted by the height adjustment mechanism, so after the first workpiece is placed on the placement structure, it is There is no need to adjust the left and right positions of the first workpiece, and only need to adjust the height of the first workpiece through the height adjustment mechanism so that the height of the first workpiece and the second workpiece are consistent to achieve centering adjustment. The process of centering adjustment is simple and convenient, and the adjustment Higher efficiency.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model;

Fig. 2 is a left side view of Fig. 1 .

Detailed ways

An embodiment of a centering device is shown in Figures 1 to 2: it includes a first workbench 1, a second workbench 3, and a third workbench 4 arranged front and back, and also includes a guide rail 2 whose guiding direction extends along the front-to-rear direction. A workbench 1 and a third workbench 4 are guided and moved and assembled on the guide rail 2, and the second workbench 7 is fixedly arranged between the first and second workbenches. The guide rail includes left and right rails 2-1 and right Track 2-2, the bottoms of the first and third workbenches are provided with mobile rollers 5 that cooperate with the left and right track guides for rolling. The second workbench 3 is provided with a positioning structure for positioning and cooperating with the second workpiece so that the second workpiece is in the center position of the left and right rails. The positioning structure includes positioning pin holes opened on the second workbench and for wearing Dowels in the second workpiece with dowel holes. The structure of the third workbench is the same as that of the first workbench. Now only the structure of the first workbench 1 will be described in detail. The first workbench is provided with a height adjustment mechanism capable of outputting linear movements in the up and down direction. The straight line of the height adjustment mechanism The action output end is provided with a placement structure for positioning the first workpiece in the left and right directions. The height adjustment mechanism includes a screw rod 9 whose axis extends in the left and right direction. The screw on the rod is connected with forward-rotation screw nuts 15 and reverse-rotation screw nuts 10 arranged at left and right intervals, and the placement structure includes a left bracket 14 fixed on the left-hand screw nut 15 and a right bracket fixed on the right-hand screw nut 10 11. The upper ends of the left and right brackets have a support portion that frictionally fits with the first workpiece support. The support portion includes a left support roller 13 and a right support roller 12 that are respectively rotatably assembled on the upper ends of the left and right supports. The rollers are arranged symmetrically with the centers of the left and right rails, so after the first workpiece is placed on the left and right support rollers, the first workpiece is also at the center of the left and right rails, so that the positioning structure on the second workbench The positions of the first and second workpieces in the left and right directions are consistent.

In the utility model, the left and right rails are taken as a benchmark, the positioning structure on the second workbench locates the second workpiece at the center of the left and right rails, and the placing structure locates the first workpiece at the center of the left and right rails, so that After the first workpiece is placed on the placement structure, since the first worktable can only move in the front-back direction, and the first workpiece can only move in the up-down direction, there is no need to adjust the left-right position of the first workpiece, only need to rotate the screw Make the left and right screw nuts move relatively or opposite to each other, the first workpiece and the left and right support rollers are rolling and frictionally matched, and the height of the first workpiece is adjusted to be consistent with the height of the second workpiece. The whole alignment process is simple and convenient . Taking the cylinder installation of the UHV interrupter as an example, the left cylinder part 6 is placed on the left and right support rollers of the first workbench 1, and the right cylinder part 8 is placed on the left and right sides of the third workbench 4. On the right supporting roller, place the middle cylindrical body part 7 on the second workbench 3, and the positioning structure positions the middle cylindrical body part so that the middle cylindrical body part is in the center position of the left and right rails, so that the left cylindrical body part, The right cylinder part is in the center position of the left and right rails, and only need to adjust the height of the left and right cylinder parts so that the height of the left and right cylinder parts is consistent with the height of the middle cylinder part to complete the centering adjustment; use left-handed, The right-handed nut adjusts the height of the workpiece, mainly because the left-handed and right-handed nuts can easily keep the workpiece in the center.

In other embodiments of the present utility model: when there are only two workpieces to be centered and adjusted, the third workbench may not be provided; the second workbench may also be guided and moved on the guide rail; There is no need to set it up. At this time, the left and right vertical frames can directly slide and frictionally cooperate with the corresponding workpiece; of course, the height adjustment mechanism can also be other mechanisms that can output linear motion, such as drive cylinders, electric push rods, etc., and additional settings are required at this time. A positioning structure that restricts the left and right movement of the first workpiece. The positioning structure can be a positioning pin, which limits the first workpiece to the center of the left and right rails; the first worktable can also be fixed, and the second worktable guides Mobile assembly on the guide rail; the left and right supporting rollers may not limit the first workpiece to the center position of the left and right rails, for example, the position of the left rail, at this time the positioning structure on the second workbench will also be the second The workpiece is positioned on the left track to ensure that the positions of the first and second workpieces are consistent in the left and right directions; the guide rail may not be a double-track structure of the left and right tracks. Single track structure in the center of the bottom of the three workbenches.

Claims (6)

1. The centering device is characterized in that: it includes a first workbench and a second workbench arranged front and back, and also includes a guide rail whose guiding direction extends along the front and back direction, wherein one workbench guides and moves and is assembled on the guide rail, and the other The workbench guides and moves and is assembled on the guide rail or is fixedly installed. The first workbench is provided with a height adjustment mechanism capable of outputting linear motion in the up and down direction. A placement structure for workpiece positioning. The second workbench is provided with a positioning structure for positioning and cooperating with the second workpiece so that the positions of the first workpiece and the second workpiece are consistent in the left and right directions. 2. The centering device according to claim 1, characterized in that: the positioning structure includes a positioning pin hole opened on the second workbench and is used to pass through the second workpiece and the positioning pin hole locating pins. 3. The centering device according to claim 1, characterized in that: the first workbench is guided and moved on the guide rail, and the second workbench is fixedly arranged on the rear side of the first workbench . 4. The centering device according to claim 1, characterized in that: the guide rail includes a left rail and a right rail arranged at intervals from left to right, the placement structure is located at the center of the left and right rails, and the positioning structure Positioning the second workpiece at the center position of the left and right rails. 5. The centering device according to any one of claims 1 to 4, characterized in that: the height adjustment mechanism includes a screw rod whose axis extends in the left and right directions, and the screw on the screw rod is connected with forward rotation screws arranged at left and right intervals. A screw nut and an anti-rotation screw nut, the placement structure includes a left bracket fixed on the left-hand screw nut and a right bracket fixed on the right-hand screw nut, the upper ends of the left and right brackets have the same shape as the first The workpiece supports the support portion of the friction fit. 6 . The centering device according to claim 5 , wherein the supporting portion includes left and right supporting rollers that are respectively rotatably mounted on the upper ends of the left and right brackets. 7 .