Tool for installing split encoder

Abstract

The utility model relates to a tool for installing a split encoder, which can effectively ensure the relative position precision of a rotor code disc assembly and a stator plate assembly through the tight attraction of a magnetic block and the cooperation of a limiting block and a motor base installation reference surface, thereby improving the measurement accuracy of the encoder and the control precision of a motor. Therefore, rapid and accurate installation of the rotor code disc assembly can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tool for installing split encoder, especially to a tool for installing grating split encoder, belongs to encoder installation technical field. BACKGROUND

[0002] Encoder as the most commonly used sensing accessories, is widely used in industrial field, the type of encoder can be divided into integral type (product internal bearing self -bearing shaft system) and split type, compared, split type encoder (grating split encoder) product's advantage lies in small size, its structure is all scattered parts, customer needs to assemble when using. There is a core parameter that needs to be controlled when assembling the encoder, that is, the grating gap (directly affects the signal, signal quality, etc.) from the chip (chip installed on the stator plate assembly) to the grating (grating is located on the rotor disc assembly), therefore, the distance from the grating to the chip surface is usually strictly controlled. The traditional installation method often relies on the experience and manual operation of workers, which not only leads to low installation efficiency, but also is difficult to guarantee the installation precision. The detection method of conventional grating gap is to use a feeler gauge or a mechanical height limiting tool to assist detection, but both methods have some problems, such as the feeler gauge is easy to scratch the surface of the grating, affecting the signal quality, the conventional height limiting tool is inconvenient to operate (the pressing force of the limiting jig is opposite to the lifting force of the grating), etc. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a tool for installing split encoder, which can conveniently install split type encoder and has high installation precision.

[0004] To achieve the above-mentioned purpose, the utility model provides a tool for installing split encoder, which is used for installing split encoder on a motor, the split encoder comprises a rotor disc assembly and a stator plate assembly, the stator plate assembly is fixedly connected with a motor seat body, and the rotor disc assembly is sleeved on a motor shaft.

[0005] The tool for installing split encoder comprises a mounting seat and a limiting block, the upper end of the limiting block is fixed on the mounting seat, a magnetic block for magnetically attracting the rotor disc assembly is arranged in the mounting seat, the bottom end of the limiting block is used for abutting against an installation reference surface on the motor seat body when the split encoder is installed, and the magnetic block is used for attracting the rotor disc assembly.

[0006] Preferably, the magnetic block is a ring-shaped magnet, and the mounting seat has a mounting hole for mounting the magnetic block.

[0007] More preferably, the ring-shaped magnetic block is centered with the rotor disc assembly when the split encoder is installed.

[0008] More preferably, the center of the annular magnet has a through hole for passing through the motor shaft.

[0009] More preferably, the limiting block is a cylindrical shape coaxial with the annular magnet.

[0010] Further, the limiting block is provided with a tool hole.

[0011] Preferably, the bottom of the limiting block is provided with a pin hole, and the motor seat is provided with a positioning pin, and when the split encoder is installed, the pin hole is used in cooperation with the positioning pin.

[0012] Preferably, the bottom of the mounting seat has a centering hole, and the rotor disc assembly has a shaft sleeve for sleeving the motor shaft, and the outer side of the shaft sleeve is a cylindrical surface, and when the split encoder is installed, the centering hole is sleeved on the cylindrical surface outside the shaft sleeve to center the mounting seat with the shaft sleeve.

[0013] Preferably, the limiting block is in the shape of a straight plate, and two limiting blocks are installed on the mounting seat, and the two limiting blocks are installed on the two side edges of the mounting seat respectively, and the two limiting blocks are perpendicular to each other.

[0014] Preferably, the top of the mounting seat is provided with a handle.

[0015] As described above, the utility model relates to a tool for installing a split encoder, which has the following beneficial effects: through the magnetic block tightly sucking the rotor disc assembly and the cooperation of the limiting block and the installation reference surface of the motor seat body, the relative position accuracy of the rotor disc assembly and the stator plate assembly can be effectively ensured, the grating gap can be accurately controlled, the installation error of the grating gap is within a controllable range, the stability and consistency of the grating gap of the split encoder are ensured, and therefore the measurement accuracy of the encoder and the control accuracy of the motor are improved, so that the quick and accurate installation of the rotor disc assembly can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 An exploded view of a tool for installing a split encoder of the utility model is shown in the figure.

[0017] Figure 2 A perspective view of a tool for installing a split encoder of the utility model is shown in the figure.

[0018] Figure 3 A tool structure schematic view for installing a split encoder is shown in the figure, in which the limiting block is in the shape of a cylinder.

[0019] Figure 4 A sectional view of the tool in Figure 3 is shown in the figure.

[0020] ELEMENT NUMBER EXPLANATION

[0021] 1 rotor disc assembly

[0022] 2 stator plate assembly

[0023] 3 motor base

[0024] 4 motor shaft

[0025] 5 mounting seat

[0026] 6 limiting block

[0027] 7 magnetic block

[0028] 8 centering hole

[0029] 9 mounting hole

[0030] 10 through hole

[0031] 11 pin hole

[0032] 12 handle

[0033] 13 shaft sleeve

[0034] 14 screw

[0035] 15 tool hole DETAILED DESCRIPTION

[0036] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0037] It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to understand and read the content disclosed in the specification by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like used in the specification are only for the convenience of clear description, and are not used to limit the implementation range of the present application. The change or adjustment of the relative relationship without substantially changing the technical content is also considered as the implementation scope of the present application.

[0038] As shown in Figures 1 to 4 The present application provides a tool for installing a split encoder, which is used for installing a split encoder on a motor. The split encoder includes a rotor disc assembly 1 and a stator plate assembly 2. The stator plate assembly 2 is fixedly connected with a motor base 3, and the rotor disc assembly 1 is sleeved on a motor shaft 4.

[0039] The tool for installing the split encoder includes a mounting seat 5 and a limiting block 6, the upper end of the limiting block 6 is fixed on the mounting seat 5, the mounting seat 5 is provided with a magnetic block 7 for the magnetic rotor disc assembly 1, when the split encoder is installed, the bottom end of the limiting block 6 is used to abut against the installation reference surface on the motor seat body 3, and the magnetic block 7 is used to attract the rotor disc assembly 1.

[0040] The tool for installing the split encoder of the utility model can effectively guarantee the relative position precision of the rotor disc assembly 1 and the stator plate assembly 2, thereby improving the measurement accuracy of the encoder and the control precision of the motor, and the quick and accurate installation of the rotor disc assembly 1 can be realized.

[0041] The rotor disc assembly 1 of the encoder is provided with a screw 14, the rotor disc assembly 1 is provided with a shaft sleeve 13 for sleeving the motor shaft 4, the inner hole of the shaft sleeve 13 is sleeved on the motor shaft 4 and cooperates with the motor shaft 4, the shaft sleeve 13 is provided with a threaded hole which is perpendicular to the motor shaft 4, the screw 14 is screwed in the threaded hole, and the end of the screw 14 abuts against the motor shaft 4, so that the rotor disc assembly 1 and the motor shaft 4 are fixed together. The screw 14 is generally made of steel material and can be attracted by the magnetic block 7, and other parts made of steel material in the rotor disc assembly 1 can also be attracted by the magnetic block 7. The tool for installing the split encoder of the utility model uses the magnetic block 7 to attract the rotor disc assembly 1, so that the upper end of the shaft sleeve 13 of the rotor disc assembly 1 abuts tightly against the lower surface of the magnetic block 7 or the lower surface of the mounting seat 5, and the distance between the lower surface of the magnetic block 7 or the lower surface of the mounting seat 5 and the lower end of the limiting block 6 is set according to the gap between the rotor disc assembly 1 and the stator plate assembly 2 (the grating gap from the grating to the chip). Therefore, when the encoder is installed, the stator plate assembly 2 is installed on the motor seat body 3, the bottom end of the limiting block 6 abuts against the installation reference surface on the motor seat body 3, the screw 14 for abutting and fixing the shaft sleeve 13 and the motor shaft 4 is pre-installed in the screw hole on the shaft sleeve 13, the magnetic block 7 attracts the rotor disc assembly 1 so that the upper end of the shaft sleeve 13 of the rotor disc assembly 1 abuts against the lower surface of the mounting seat 5 or the magnetic block 7, at this time, the gap between the rotor disc assembly 1 and the stator plate assembly 2 (the grating gap from the grating to the chip) meets the design requirements, and then the screw 14 can be tightened. As a preferred embodiment, the magnetic block 7 is a ring-shaped magnet, when the split encoder is installed, the ring-shaped magnetic block 7 is centered with the rotor disc assembly 1, so that the attraction force of the magnetic block 7 to the rotor disc assembly 1 is relatively uniform, and the rotor disc assembly 1 is not easy to be deflected. The ring-shaped magnet is provided with a through hole 10 in the center for passing through the motor shaft 4, and the motor shaft 4 can pass through the through hole 10 to prevent interference.

[0042] In order to facilitate the installation of the magnetic block 7, the mounting seat 5 is provided with a limiting groove 8, the limiting groove 8 is used to limit the position of the magnetic block 7, and the magnetic block 7 is installed in the limiting groove 8. Figure 1 andFigure 2 As shown, the mounting seat 5 has mounting holes 9 for mounting the magnetic block 7, the magnetic block 7 can be fixed by applying an appropriate amount of strong glue in the mounting holes 9, preventing displacement of the magnetic block 7 during use. In order to prevent the shaft sleeve 13 from shaking, as shown Figure 4 As shown, the mounting seat 5 has a centering hole 8 at the bottom, the rotor disc assembly 1 has a shaft sleeve 13 for sleeving the motor shaft 4, the outer side of the shaft sleeve 13 is a cylindrical surface, when the split encoder is installed, the centering hole 8 is sleeved on the cylindrical surface of the outer side of the shaft sleeve 13, so that the mounting seat 5 is centered with the shaft sleeve 13, thereby ensuring the centering of the tooling with the motor shaft 4 and the rotor disc assembly 1.

[0043] As shown in Figure 1 and Figure 2 The limiting block 6 is in the shape of a straight plate, two limiting blocks 6 are installed on the mounting seat 5, the two limiting blocks 6 are installed on the two side edges of the mounting seat 5 respectively, the two limiting blocks 6 are perpendicular to each other, and the limiting block 6 is fixed on the mounting seat 5 by welding or bolt connection.

[0044] As shown in Figure 3 and Figure 4 The limiting block 6 can also be in the shape of a cylinder coaxial with the ring-shaped magnet, if the limiting block 6 is in the shape of a cylinder coaxial with the ring-shaped magnet, the installation position on the mounting seat 5 is determined, generally the position coinciding with the center axis of the magnetic block 7 is selected. The upper end of the limiting block 6 is fixed on the mounting seat 5 by welding or high-strength bolt connection. When welding, attention should be paid to control the welding temperature and welding time to avoid deformation of the limiting block 6 or the mounting seat 5 due to overheating, affecting the precision of the tooling. After welding, the weld is polished to ensure the surface is smooth. In order to facilitate the use of tools to screw the screw 14 on the rotor disc assembly 1, a tool hole 15 is arranged on the limiting block 6, tools can be inserted from the tool hole 15 to screw the screw 14.

[0045] In order to facilitate operation, a pin hole 11 can be arranged at the bottom of the limiting block 6, a positioning pin is arranged on the motor base, when the split encoder is installed, the pin hole 11 is used for cooperation with the positioning pin, so that the positioning between the tooling and the motor base 3 is accurate and not prone to misalignment affecting the installation operation, a handle 12 is arranged at the top of the mounting seat 5 to facilitate the workers to hold the tooling.

[0046] When the split encoder is installed on the motor using the tooling for installing the split encoder, the following operation steps can be referred to:

[0047] 1) The stator plate assembly 2 is installed on the motor base 3, the screw 14 is pre-installed in the screw hole on the shaft sleeve 13 of the rotor disc assembly 1, and then the shaft sleeve 13 of the rotor disc assembly 1 is sleeved on the motor shaft 4;

[0048] 2) The operator holds the handle 12, moves the tool to above the motor, makes the bottom of the limiting block 6 abut against the installation reference surface on the motor base 3, the magnetic block 7 tightly absorbs the rotor code disc assembly 1, the upper end of the shaft sleeve 13 of the rotor code disc assembly 1 abuts against the lower surface of the installation seat 5 or the magnetic block 7, and the tool is kept stable during the abutting process, so that the rotor code disc assembly 1 is prevented from being displaced due to shaking;

[0049] 3) The relative position between the rotor code disc assembly 1 and the stator plate assembly 2 is checked, the screw 14 pre-installed in the shaft sleeve 13 of the rotor code disc assembly 1 is tightened by using a screwdriver, so that the rotor code disc assembly 1 is fixedly connected with the motor shaft 4;

[0050] 4) The tool is detached from the motor.

[0051] Based on the technical scheme in the above embodiment, the tool for installing the split encoder of the utility model can effectively guarantee the relative position precision of the rotor code disc assembly 1 and the stator plate assembly 2 by tightly absorbing the rotor code disc assembly 1 by the magnetic block 7 and cooperating the limiting block 6 with the installation reference surface of the motor base 3, thereby improving the measurement accuracy of the encoder and the control precision of the motor, so that the quick and accurate installation of the rotor code disc assembly 1 can be realized.

[0052] In summary, the utility model effectively overcomes the various shortcomings in the prior art and has high industrial utilization value.

[0053] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A tool for installing a split encoder, used for installing a split encoder on a motor, the split encoder comprising a rotor disc assembly and a stator plate assembly, the stator plate assembly being fixedly connected with a motor body, and the rotor disc assembly being sleeved on a motor shaft; characterized in that: the tool for installing the split encoder comprises a mounting seat and a limiting block, the upper end of the limiting block being fixed on the mounting seat, and the mounting seat being provided with a magnetic block for magnetically attracting the rotor disc assembly; when the split encoder is installed, the bottom end of the limiting block is used for abutting against an installation reference surface on the motor body, and the magnetic block is used for attracting the rotor disc assembly. The magnetic block is a ring-shaped magnet, and the mounting seat is provided with a mounting hole for mounting the magnetic block.

2. The tooling for mounting a split encoder of claim 1, wherein: When the split encoder is installed, the ring-shaped magnet is used for centering the rotor disc assembly.

3. The tooling for mounting a split encoder of claim 2, wherein: The center of the ring-shaped magnet is provided with a through hole for passing through the motor shaft.

4. The tooling for mounting a split encoder of claim 2, wherein: The limiting block is in the shape of a cylinder coaxial with the ring-shaped magnet.

5. The tooling for mounting a split encoder of claim 2, wherein: The limiting block is provided with a tool hole.

6. The tooling for mounting a split encoder of claim 5, wherein: The bottom of the limiting block is provided with a pin hole, and the motor body is provided with a positioning pin; when the split encoder is installed, the pin hole is used for cooperating with the positioning pin.

7. The tooling for mounting a split encoder of claim 1, wherein: The bottom of the mounting seat is provided with a centering hole, and the rotor disc assembly is provided with a shaft sleeve for sleeving the motor shaft; the outer side of the shaft sleeve is in the shape of a cylinder; when the split encoder is installed, the centering hole is sleeved on the cylindrical surface on the outer side of the shaft sleeve so as to center the mounting seat with the shaft sleeve.

8. The tooling for mounting a split encoder of claim 1, wherein: The limiting block is in the shape of a straight plate, and two limiting blocks are mounted on the mounting seat, the two limiting blocks being mounted on two side edges of the mounting seat respectively and being perpendicular to each other.

9. The tooling for mounting a split encoder of claim 1, wherein: The top of the mounting seat is provided with a handle.

10. The tooling for mounting a split encoder of claim 1, wherein: ​

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