Main shaft runout measuring jig

Abstract

The utility model discloses a main shaft run-out measuring jig, which comprises a bottom plate, a positioning lantern ring group, a supporting assembly and a supporting rod, and is characterized in that the bottom plate is provided with a mounting position of a run-out degree measuring device; the inner ring face of the positioning lantern ring set is suitable for abutting against the main shaft, and the positioning lantern ring set is provided with a positioning ring notch communicating with the outer ring face and the inner ring face of the positioning lantern ring set. The supporting assembly is arranged above the bottom plate and comprises a supporting plate and a fixing piece, the supporting plate comprises a first plate part and a second plate part, the first plate part and the second plate part can move in an opening and closing mode, the first plate part and the second plate part are suitable for clamping a main shaft or a positioning lantern ring set, and the fixing piece is used for connecting and fixing the first plate part and the second plate part; the supporting rod is connected with the supporting plate and the bottom plate; the replaceable positioning lantern ring group is arranged between the first plate part and the second plate part, so that the positioning lantern ring group with a proper specification can be selected according to the main shafts with different diameters under the condition that the supporting plate is not disassembled, and the suitability of the main shaft runout measurement jig to the main shafts with different diameters is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of main shaft measuring fixture, especially to a main shaft runout measuring fixture. BACKGROUND

[0002] The main shaft on the machine tool needs to be measured when the machine tool is used, to ensure that the runout of the main shaft when rotating is within a certain error range, and the conventional measurement method usually needs to install the main shaft into the machine tool and install the runout measuring device (such as a dial gauge) on the machine table to measure the runout of the main shaft when rotating, but this measurement method needs to suspend production of the machine tool, reducing the production efficiency of the machine tool.

[0003] For this, the prior art also proposes to use a measuring fixture, install the main shaft on the support plate of the measuring fixture, and set a runout measuring device below the main shaft, which does not need to occupy the machine tool, but is only suitable for a single specification of main shaft and cannot be adapted to main shafts of multiple specifications. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a main shaft runout measuring fixture, which can change the diameter of the main shaft that can be clamped by the main shaft runout measuring fixture through the positioning ring set, to realize quick adaptation to main shaft runout measurement of different diameters.

[0005] In one aspect, the utility model embodiment provides a main shaft runout measuring fixture, comprising:

[0006] A bottom plate provided with an installation position of a runout measuring device;

[0007] A positioning ring set, the inner ring surface of the positioning ring set is adapted to abut against the main shaft, and the positioning ring set is provided with a positioning ring notch communicating the outer ring surface of the positioning ring set and the inner ring surface;

[0008] A support assembly provided above the bottom plate, the support assembly comprising a support plate and a fixing member, the support plate comprising a first plate part and a second plate part, the first plate part and the second plate part being capable of opening and closing movement, the first plate part and the second plate part being adapted to clamp the main shaft or the positioning ring set, and the fixing member connecting and fixing the first plate part and the second plate part;

[0009] A support rod connecting the support plate and the bottom plate.

[0010] According to some embodiments of the utility model, the support plate is an integral forming plate, the support plate is equipped with a first mounting through hole and a mounting gap, the mounting gap extends from the first mounting through hole to the outer side surface of the support plate, along the two sides of the first mounting through hole pointing to the direction of the mounting gap, the support plate is divided into the first plate part and the second plate part.

[0011] According to some embodiments of the utility model, the first plate part is equipped with a threaded hole, the second plate part is equipped with an avoiding through hole, the threaded hole, the mounting gap and the avoiding through hole are sequentially communicated;

[0012] The fixing part includes a fixed rod, the first end of the fixed rod is equipped with an external thread matched with the threaded hole, the rod body of the fixed rod is equipped with a pressing part, the fixed rod is arranged in the avoiding through hole, and the pressing part is suitable for pressing the second plate part to move to the first plate part.

[0013] According to some embodiments of the utility model, the upper surface of the support plate is recessed to form a first placing groove, the bottom of the first placing groove is communicated with the first mounting through hole, the first placing groove is suitable for placing the positioning ring group, and the diameter of the inner circle surface of the positioning ring group is less than the diameter of the first mounting through hole.

[0014] According to some embodiments of the utility model, the positioning ring group includes a plurality of positioning rings arranged in sequence, the positioning ring is equipped with a ring placing groove, a main shaft mounting through hole and a positioning ring sub gap, the upper surface of the positioning ring is recessed to form the ring placing groove, the bottom of the ring placing groove is communicated with the main shaft mounting through hole, the positioning ring sub gap is communicated with the outer side surface of the positioning ring and the main shaft mounting through hole, and the positioning ring sub gaps of a plurality of positioning rings are communicated to form the positioning ring gap.

[0015] In the plurality of positioning rings arranged in sequence, the next positioning ring is placed in the ring placing groove of the previous positioning ring, and the diameter of the main shaft mounting through hole of the next positioning ring is less than the diameter of the main shaft mounting through hole of the previous positioning ring.

[0016] According to some embodiments of the utility model, the second end of the fixed rod is equipped with a handle part, the handle part extends along the radial direction of the fixed rod, and the handle part and the external thread are located on the two sides of the pressing part.

[0017] According to some embodiments of the utility model, the support plate is slidingly connected to the support rod, and the support plate and the support rod are connected through a limiting mechanism.

[0018] According to some embodiments of the utility model, the support rod is provided with a sliding groove extending in the vertical direction.

[0019] The limiting mechanism comprises a limiting screw, and a screw rod of the limiting screw is threadedly connected with the support plate through the sliding groove.

[0020] According to some embodiments of the utility model, the main shaft runout measuring jig further comprises a driving motor, and the driving motor can be coupled with the main shaft in power to drive the rotation of the rotating shaft in the main shaft.

[0021] The utility model discloses at least has following beneficial effects: through setting up the replaceable positioning sleeve ring group between the first plate part and the second plate part, also can select the positioning sleeve ring group of appropriate specification according to the main shaft of different diameters without disassembling the support plate, greatly improve the adaptability of the main shaft runout measuring jig for the main shaft of different diameters.

[0022] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0024] Figure 1 It is one of structural schematic diagram of the main shaft runout measuring jig of the utility model embodiment;

[0025] Figure 2 It is the second structural schematic diagram of the main shaft runout measuring jig of the utility model embodiment.

[0026] Reference signs:

[0027] 100, bottom plate;

[0028] 200, support assembly;210, support plate;211, first plate part;212, second plate part;213, first mounting through hole;214, mounting notch;215, first placing groove;220, fixing piece;221, fixed rod;222, abutting portion;223, handle portion;

[0029] 30, positioning sleeve ring;31, first positioning sleeve ring;32, second positioning sleeve ring;310, sleeve ring placing groove;320, main shaft mounting through hole;330, positioning ring sub notch;

[0030] 400, support rod;410, sliding groove;

[0031] 510, driving motor;520, electric control box;

[0032] 610, runout measuring device. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0034] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the upper, lower, front, rear, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0035] In the description of the present application, the meaning of "several" is one or more, the meaning of "multiple" is two or more, greater than, less than, more than, etc. are understood as not including the number, "above", "below", "within", etc. are understood as including the number. If there is a description of "first", "second", etc. is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features.

[0036] In the description of the present application, unless otherwise explicitly limited, the words "set", "install", "connect", etc. should be broadly understood, and the skilled person in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0037] Please refer to Figure 1 and Figure 2 The present application provides a main shaft runout measuring jig, which comprises a base plate 100, a positioning sleeve ring set, a support assembly 200 and a support rod. The base plate 100 is provided with a mounting position of a runout measuring device 610. The inner ring surface of the positioning sleeve ring set is adapted to abut against the main shaft, and the positioning sleeve ring set is provided with a positioning ring gap communicating between the outer ring surface and the inner ring surface of the positioning sleeve ring set. The support assembly 200 is arranged above the base plate 100, and comprises a support plate 210 and a fixing member 220. The support plate 210 comprises a first plate part 211 and a second plate part 212, and the first plate part 211 and the second plate part 212 can be moved open and closed. The first plate part 211 and the second plate part 212 are adapted to clamp the main shaft or the positioning sleeve ring set, and the fixing member 220 connects and fixes the first plate part 211 and the second plate part 212. The support rod 400 connects the support plate 210 and the base plate 100.

[0038] In this embodiment, for the convenience of understanding the scheme, reference can be made to the following and the accompanying drawings Figure 1 The positioning ring set is a combined whole of a plurality of positioning rings 30 (such as a combined whole of the first positioning ring 31 and the second positioning ring 32 in FIG. 1), and the positioning ring gap is a combined whole of a plurality of positioning ring gaps 330 of the positioning rings 30; of course, the positioning ring set can also be of an integral structure and need not be split into a plurality of positioning rings 30. Figure 1

[0039] According to the spindle run-out measuring jig in the embodiment of the utility model, the spindle can be directly clamped and fixed by the first plate part 211 and the second plate part 212 (as shown in FIG. 1), or can be installed into the positioning ring set and then clamped and fixed between the first plate part 211 and the second plate part 212 (as shown in FIG. 2), wherein the positioning ring set is moved along the Z axis by a certain height for the convenience of display. Figure 2 Figure 1 Taking the spindle installed into the positioning ring set as an example, when there is a need to measure the run-out of the spindle, the worker inserts the spindle into the positioning ring set, then places the positioning ring set between the first plate part 211 and the second plate part 212, and the first plate part 211 and the second plate part 212 are closed and gradually clamped to the positioning ring set, the positioning ring gap of the positioning ring set is reduced, the inner ring surface of the positioning ring set is gradually clamped to the spindle, the first plate part 211 and the second plate part 212 are fixedly connected by the fixing part 220 after the spindle is clamped, finally the run-out measuring device 610 is placed on the bottom plate 100 and corresponds to the measurement part of the spindle, the shaft of the spindle is rotated and the run-out is measured.

[0040] According to the spindle run-out measuring jig in the embodiment of the utility model, by arranging the replaceable positioning ring set between the first plate part 211 and the second plate part 212, the spindle run-out measuring jig can be adapted to spindles of different diameters without disassembling the support plate 210.

[0041] According to the spindle run-out measuring jig in the embodiment of the utility model, by arranging the replaceable positioning ring set between the first plate part 211 and the second plate part 212, the spindle run-out measuring jig can be adapted to spindles of different diameters without disassembling the support plate 210.

[0042] In this embodiment, the spindle can include a shell, a flange connected to the outside of the shell, and a shaft rotatably connected to the inside of the shell, and the shaft is used to install a tool in a machine tool.

[0043] In this embodiment, the run-out measuring device 610 can be a dial gauge, a spindle vibration deflection instrument, etc.

[0044] In some embodiments, in combination with Figure 1 ​​As shown, the support plate 210 is an integrally formed plate, the support plate 210 is provided with a first mounting through hole 213 and a mounting notch 214, the mounting notch 214 extends from the first mounting through hole 213 to the outer side of the support plate 210, along the two sides of the first mounting through hole 213 pointing to the direction of the mounting notch 214, the support plate 210 is divided into a first plate part 211 and a second plate part 212.

[0045] In this embodiment, since the support plate 210 is an integrally formed plate, one end of the first plate part 211 and the second plate part 212 is always fixed, when the support plate 210 is connected to the support rod 400, the staff does not need to hold the first plate part 211 or the second plate part 212, which improves the convenience of the main shaft installation; the installation of the mounting notch 214 enables the first plate part 211 and the second plate part 212 to open and close to clamp the main shaft or the positioning ring set.

[0046] In other embodiments, the first plate part 211 and the second plate part 212 can also be separately provided.

[0047] In some embodiments, in combination with Figure 1 As shown, the first plate part 211 is provided with a threaded hole (not shown), the second plate part 212 is provided with an avoiding through hole (not shown), the threaded hole, the mounting notch 214 and the avoiding through hole are sequentially communicated; the fixing member 220 includes a fixing rod 221, the first end of the fixing rod 221 is provided with an external thread matched with the threaded hole, the rod body of the fixing rod 221 is provided with a pressing part 222, the fixing rod 221 is arranged in the avoiding through hole, and the pressing part 222 is adapted to press the second plate part 212 to move towards the first plate part 211.

[0048] In this embodiment, the fixing rod 221 passes through the avoiding through hole and the mounting notch 214 into the first plate part 211, the external thread on the fixing rod 221 is threadedly connected with the threaded hole of the first plate part 211, and in the process of threadedly connecting the external thread with the threaded hole, the pressing part 222 gradually presses the second plate part 212 to move towards the first plate part 211 to clamp the main shaft or the positioning ring set. The staff can only realize the opening and closing of the first plate part 211 and the second plate part 212 by rotating the fixing rod 221, which is convenient and efficient.

[0049] In other embodiments, the fixing member 220 can also be in the form of a clip (the first plate part 211 and the second plate part 212 correspond to the clamping position of the clip), a bolt or a magnetic member.

[0050] In some embodiments, in combination with Figure 1 As shown, the upper surface of the support plate 210 is recessed to form a first placing groove 215, the bottom of the first placing groove 215 is communicated with the first mounting through hole 213, the first placing groove 215 is adapted to place the positioning ring set, and the diameter of the inner circle surface of the positioning ring set is smaller than the diameter of the first mounting through hole 213.

[0051] In this embodiment, the positioning ring set can be pre-placed in the first placement slot 215 during installation of the main shaft and the positioning ring set, and during clamping of the main shaft, the worker does not need to hold the positioning ring set by hand, only needs to hold the main shaft by hand, and can realize fixation of the main shaft by operating the fixing member 220, thereby greatly improving the convenience of installation of the main shaft.

[0052] In some embodiments, in combination with Figure 1 As shown, the positioning ring set includes a plurality of positioning rings 30 arranged in sequence, the positioning ring 30 is provided with a ring placement slot 310, a main shaft installation through hole 320 and a positioning ring sub-notch 330, the upper surface of the positioning ring 30 is recessed to form the ring placement slot 310, the bottom of the ring placement slot 310 is communicated with the main shaft installation through hole 320, the positioning ring sub-notch 330 is communicated with the outer side of the positioning ring 30 and the main shaft installation through hole 320, and the positioning ring sub-notches 330 of the plurality of positioning rings 30 are communicated to form a positioning ring notch; among the plurality of positioning rings 30 arranged in sequence, the next positioning ring 30 is placed in the ring placement slot 310 of the previous positioning ring 30, and the diameter of the main shaft installation through hole 320 of the next positioning ring 30 is smaller than that of the previous positioning ring 30.

[0053] In this embodiment, for the convenience of understanding and illustration, the flange (a component for connecting with the machine tool, which can be clamped by the support plate 210 or the positioning ring 30) of the main shaft to be installed has a diameter of 40 mm, 65 mm and 100 mm, the positioning ring 30 includes first positioning rings 31 and second positioning rings 32 with different inner diameters, and the installation of the 100 mm specification main shaft can directly clamp the main shaft between the first plate part 211 and the second plate part 212; when the 65 mm specification main shaft is installed, a positioning ring 30 (i.e. the first positioning ring 31 of the first positioning ring 31) needs to be placed in the first placement slot 215 of the support plate 210, and the main shaft is clamped and fixed by the hole wall of the main shaft installation through hole 320 of the first positioning ring 31; when the 40 mm main shaft is installed, a second positioning ring 30 (i.e. the second positioning ring 32 of the second positioning ring 32) with a smaller size needs to be placed in the ring placement slot 310 of the first positioning ring 31, and the main shaft is clamped in the main shaft installation through hole 320 of the second positioning ring 32. Figure 1 Figure 1

[0054] In this embodiment, through the positioning rings 30 arranged in layers, even in the case that the relative movement distance (the reduction range of the installation gap 214) of the first plate part 211 and the second plate part 212 is limited, it can still be adapted to fixation of a plurality of main shafts with large diameter specification span.

[0055] In this embodiment, as Figure 1 ​​As shown, the positioning collar set includes two positioning collars 30 (a first positioning collar 31 and a second positioning collar 32, respectively), and of course, the number of positioning collars 30 can be adjusted based on the number of main shafts required to be fitted to ensure clamping of all main shafts required to be measured.

[0056] In some embodiments, in combination with Figure 1 As shown, the second end of the fixing rod 221 is provided with a handle portion 223, the handle portion 223 extending along the radial direction of the fixing rod 221, and the handle portion 223 is located on both sides of the pressing portion 222 with external threads. The handle portion 223 is used to increase the torque of the force applied by the staff to the fixing rod 221, thereby reducing the labor intensity.

[0057] In some embodiments, in combination with Figure 1 and Figure 2 As shown, the support plate 210 is slidingly connected to the support rod 400, and the support plate 210 and the support rod 400 are connected through a limiting mechanism (not shown in the figure).

[0058] In this embodiment, the height of the support plate 210 is adjusted to adapt to main shafts of different lengths to ensure that the measurement position of the main shaft corresponds to the probe of the runout measuring device 610. After moving to the required position, the limiting mechanism is used for limiting and fixing.

[0059] In this embodiment, the sliding connection can be in the form of a physical connection, such as a sliding groove, or in the form of a driving module, such as an air cylinder, a lead screw module, a sliding table module, etc.

[0060] In this embodiment, the limiting mechanism can be a support column (supporting the support plate 210), a bolt (locking the support plate 210 and the support rod 400), etc.

[0061] In some embodiments, in combination with Figure 1 As shown, the support rod 400 is provided with a sliding groove 410 extending in the vertical direction; the limiting mechanism includes a limiting screw (not shown in the figure), and the screw rod of the limiting screw is threadedly connected to the support plate 210 through the sliding groove 410. By rotating the limiting screw, the limiting screw and the support plate 210 are matched to clamp the support rod 400, so as to limit and fix the height of the support plate 210, thereby facilitating operation and adjustment.

[0062] In some embodiments, in combination with Figure 2 As shown, the main shaft runout measuring jig further includes a driving motor 510, which can be coupled with the main shaft to drive the rotation of the rotating shaft in the main shaft.

[0063] In this embodiment, during the measurement of the runout of the main shaft, the rotating shaft of the main shaft is driven by the driving motor 510, without the need for manual rotation, thereby reducing the measurement intensity.

[0064] In the embodiment, the main shaft runout measuring jig further comprises an electric control box 520, which is used to provide power supply and control the start and stop of the driving motor 510.

[0065] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A spindle runout measuring jig, used for measuring the runout of a spindle, characterized in that: include: The bottom plate (100) is provided with a mounting position for a runout measuring device (610); A positioning collar assembly, wherein the inner ring surface of the positioning collar assembly is suitable for abutting against the main shaft, and the positioning collar assembly is provided with a positioning ring gap communicating with the outer ring surface and the inner ring surface of the positioning collar assembly; A support assembly (200), the support assembly (200) being arranged above the base plate (100), the support assembly (200) comprising a support plate (210) and a fixing member (220), the support plate (210) comprising a first plate portion (211) and a second plate portion (212), the first plate portion (211) and the second plate portion (212) being capable of opening and closing, the first plate portion (211) and the second plate portion (212) being suitable for clamping the main shaft or the positioning collar assembly, and the fixing member (220) connecting and fixing the first plate portion (211) and the second plate portion (212); A support rod (400) connects the support plate (210) and the bottom plate (100).

2. The spindle runout measuring jig according to claim 1, characterized in that: The support plate (210) is an integrally formed plate. The support plate (210) is provided with a first mounting through hole (213) and a mounting notch (214). The mounting notch (214) extends from the first mounting through hole (213) to the outer side surface of the support plate (210). Along both sides of the first mounting through hole (213) pointing to the mounting notch (214), the support plate (210) is divided into the first plate portion (211) and the second plate portion (212).

3. The spindle runout measuring jig according to claim 2, characterized in that: The first plate portion (211) is provided with a threaded hole, the second plate portion (212) is provided with an avoidance through hole, and the threaded hole, the installation notch (214) and the avoidance through hole are connected in sequence; The fixing member (220) comprises a fixing rod (221), a first end of the fixing rod (221) being provided with an external thread that matches the threaded hole, a rod body of the fixing rod (221) being provided with a pressing portion (222), the fixing rod (221) being passed through the avoidance through hole, and the pressing portion (222) being adapted to press the second plate portion (212) to move toward the first plate portion (211).

4. The spindle runout measuring jig according to claim 2, characterized in that: The upper surface of the support plate (210) is recessed to form a first placement groove (215), the bottom of the first placement groove (215) is connected to the first mounting through hole (213), the first placement groove (215) is suitable for placing the positioning collar group, and the diameter of the inner ring surface of the positioning collar group is smaller than the diameter of the first mounting through hole (213).

5. The spindle runout measuring jig according to claim 4, characterized in that: The positioning collar group includes a plurality of positioning collars (30) nested in sequence, the positioning collars (30) being provided with collar placement grooves (310), spindle mounting through holes (320) and positioning collar sub-notches (330), the upper surface of the positioning collar (30) being recessed to form the collar placement grooves (310), the bottom of the collar placement grooves (310) being connected to the spindle mounting through holes (320), the positioning collar sub-notches (330) being connected to the collar placement grooves (310) and the outer side surfaces of the positioning collar (30) and the spindle mounting through holes (320) and the outer side surfaces of the positioning collar (30), and the positioning collar sub-notches (330) of the plurality of positioning collars (30) being connected to form the positioning collar notches; Among the multiple positioning collars (30) nested in sequence, the next positioning collar (30) is placed in the collar placement groove (310) of the previous positioning collar (30), and the diameter of the spindle mounting through hole (320) of the next positioning collar (30) is smaller than the diameter of the spindle mounting through hole (320) of the previous positioning collar (30).

6. The spindle runout measuring jig according to claim 3, characterized in that: The second end of the fixing rod (221) is provided with a handle portion (223), the handle portion (223) extending radially along the fixing rod (221), and the handle portion (223) and the external thread are located on both sides of the pressing portion (222).

7. The spindle runout measuring jig according to any one of claims 1 to 6, characterized in that: The support plate (210) is slidably connected to the support rod (400), and the support plate (210) and the support rod (400) are connected via a limiting mechanism.

8. The spindle runout measuring jig according to claim 7, characterized in that: The support rod (400) is provided with a sliding groove (410) extending in a vertical direction; The limiting mechanism comprises a limiting screw, the screw rod of which passes through the sliding groove (410) and is threadedly connected to the support plate (210).

9. The spindle runout measuring jig according to any one of claims 1 to 6, characterized in that: The spindle runout measurement jig further comprises a drive motor (510), and the drive motor (510) can be coupled to the spindle power to drive the rotating shaft in the spindle to rotate.

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