CN113654467A

CN113654467A - Grating scale installation device and method

Info

Publication number: CN113654467A
Application number: CN202111011952.XA
Authority: CN
Inventors: 王书华; 杨小军; 王建云; 刘步军
Original assignee: Yokokawa Robot (shenzhen) Ltd; Shanghai Dianji University
Current assignee: Yokokawa Robot (shenzhen) Ltd; Shanghai Dianji University
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2021-11-16
Anticipated expiration: 2041-08-31
Also published as: CN113654467B

Abstract

The application relates to a grating ruler installation device, which comprises a base, a guide rail, a bearing plate and a ruler pasting block, wherein the guide rail is arranged on the base and is used for providing a motion path of an object to be detected; the bearing plate is connected with the base in a sliding way through a guide rail and is used for detachably connecting the grating reading head and the tape measure block; the base supplies to have on the one side surface that grating chi bonded and supplies the connection initiating location that grating chi one end pasted in advance to the tape measure piece is provided with the through-hole that supplies the other end of grating chi to wear out, and the one side surface that tape measure piece and base are close to each other can with the grating chi butt moreover. The application has the effect that the pasting path of the grating ruler is not easy to have errors with the moving path of the grating reading head.

Description

Grating scale installation device and method

Technical Field

The application relates to the field of installation equipment, in particular to a grating ruler installation device and method.

Background

The grating ruler, also called grating ruler displacement sensor, is a measuring feedback device working by the optical principle of grating, wherein the grating ruler is often applied in the closed loop servo system of the numerical control machine tool, and can be used for detecting the linear displacement or the angular displacement, and because the signal output by the grating ruler measurement is digital pulse, the grating ruler has the characteristics of large detection range, high detection precision and fast response speed.

In the related technology, when an object needs to be subjected to linear displacement or angular displacement detection, the object is firstly installed on a support, the support is connected onto a base in a sliding mode, the sliding track of the support is consistent with the preset movement track of the object, a grating reading head is installed on the support, and a grating ruler which is matched with the grating reading head is pasted on the outer surface of the base, so that the grating reading head can read the grating ruler when the support moves, and the purpose of performing linear displacement or angular displacement detection on the object is achieved.

In view of the above-mentioned related technologies, there is a defect that when the motion trajectory of the object is too long, an error exists between the grating scale pasting path and the motion path of the grating reading head by manually pasting the grating scale, so that the grating reading head cannot easily read the grating scale, and further a signal loss easily occurs.

Disclosure of Invention

In order to enable the pasting path of the grating ruler and the movement path of the grating reading head to be difficult to have errors, the application provides a grating ruler installation device and a method.

The application provides a grating ruler installation device and a method, which adopt the following technical scheme:

in a first aspect, the present application provides a grating ruler installation apparatus, which adopts the following technical scheme:

a grating ruler installation device comprises a base, a guide rail, a bearing plate and a ruler pasting block, wherein the guide rail is arranged on the base and is used for providing a motion path of an object to be detected; the bearing plate is connected with the base in a sliding mode through the guide rail and detachably connected with the grating reading head and the tape measure block; the base supplies to have on the one side surface that grating chi bonded and supplies the connection initiating location that grating chi one end pasted in advance, and the subsides chi piece is provided with the through-hole that supplies the other end of grating chi to wear out, and a side surface that subsides chi piece and base are close to each other can with grating chi butt moreover.

By adopting the technical scheme, when the grating ruler is required to be pasted, the ruler block is firstly installed on the bearing platform plate, one end of the grating ruler is pasted on the connection starting position in advance, the other end of the grating ruler penetrates out of the through hole on the ruler block, then the bearing platform plate can move along the length extension direction of the guide rail, in the process, the grating ruler is gradually pasted on the preset pasting path because the mutually close surface of the ruler block and the base can be abutted against the grating ruler, after the bearing platform plate reaches the designated position, the grating ruler pasted on the base and the non-pasted grating ruler are only needed to be separated, thereby completing the pasting work of the grating ruler, when the object is detected, the ruler block is firstly detached, then the grating reading head is installed on the bearing platform plate at the position connected with the ruler block, then the bearing platform plate can move to measure the linear displacement or angular displacement of the detected object, compared with a mode of manually pasting the grating ruler, the design mode has the advantages that the movement tracks of the ruler pasting block and the grating reading head are consistent, so that errors are not easy to exist in the pasting path of the grating ruler and the movement path of the grating reading head, the grating ruler cannot be easily read by the grating reading head, and the situation of signal loss is not easy to occur.

Preferably, an avoiding surface is arranged on the inner wall of the through hole close to one end connected with the starting position, and the avoiding surface can apply component force towards the direction connected with the starting position to the grating ruler.

Through adopting above-mentioned technical scheme, because of pasting the chi piece and moving to keeping away from and connecting the initiating terminal direction, grating chi can be close to the inner wall butt of being connected initiating terminal one end with the through-hole, the event dodges the setting of face, make grating chi and pasting the chi piece be close to the part of base side surface and be close to the contained angle of being connected between initiating terminal one end inner wall for grating chi and through-hole and change into the obtuse angle by the right angle, so paste the chi piece and be keeping away from the in-process of being connected initiating terminal direction motion, the through-hole is close to the inner wall of being connected initiating terminal one end and hinders the grating chi and can weaken, thereby make pasting of grating chi can be more smooth.

Preferably, a limiting through groove for the grating ruler to pass through is formed in the surface of one side of the ruler pasting block, and the limiting through groove is communicated with the through hole.

By adopting the technical scheme, due to the arrangement of the limiting through groove, when the tape sticking block moves, the deviation of the grating ruler vertical to the moving direction of the tape sticking block can be limited, so that the pasting path of the grating ruler can be more consistent with the moving path of the tape sticking block, and the error between the pasting path of the grating ruler and the moving path of the grating reading head can be further reduced.

Preferably, the grating ruler further comprises a first connecting frame arranged on the bearing plate and a grinding part arranged on the first connecting frame, wherein the grinding part comprises a moving guide rail, a spindle motor, a machining tool and a guide rail clamp, the moving guide rail is fixedly connected to the first connecting frame, and the length direction of the moving guide rail is parallel to the concave-convex direction of the surface, which is pasted by the grating ruler, of the base; the spindle motor is connected with the first connecting frame in a sliding mode through a moving guide rail, and an output shaft of the spindle motor is connected with a machining tool so as to grind and flatten the surface of one side, provided with the grating ruler, of the base; the guide rail clamp is arranged on the motion guide rail and used for limiting the sliding of the spindle motor.

By adopting the technical scheme, before the grating ruler is adhered, the first connecting frame is firstly enabled to move along the extension direction of the length of the guide rail through the bearing plate, in the process, the processing cutter is kept in contact with the surface of the base, which is adhered with the grating ruler, and the motion path of the spindle motor is detected by the detection tool, the concave-convex degree of the surface of the base on the side for adhering the grating ruler can be calculated, then the sliding of the spindle motor along the motion guide rail is limited by the guide rail clamp, then the spindle motor is started to enable the processing cutter to rotate, finally the first connecting frame is enabled to move through the bearing plate again, therefore, in the process, the processing cutter can polish the surface of one side of the base, which is adhered with the grating ruler, therefore, the grating ruler can be pasted on the base more smoothly, and the subsequent situation that the signal is lost is more difficult to occur in the detection process.

Preferably, one side surface of the base, on which the grating ruler is adhered, is positioned on the side surface of the base; the bearing platform plate is provided with a T-shaped second connecting frame, the second connecting frame comprises a first connecting end and two second connecting ends, the first connecting end is positioned at the upper side and fixedly connected with the bearing platform plate, and the two second connecting ends are positioned at the lower side and provided with first connecting holes; the tape measure block is arranged on the two second connecting ends, a second connecting hole communicated with the first connecting hole is formed in the tape measure block, and a connecting piece for fixing the tape measure block and the second connecting frame is arranged at the first connecting hole and the second connecting hole.

Through adopting above-mentioned technical scheme, on the one hand, the grating chi bonds on the side surface of base, can make the grating chi when bonding, the one end that the grating chi was worn out from the tape measure piece is to keeping away from the direction level extension of base, then be difficult for appearing the grating chi condition that does not contact the base at the bonding part because of the gravity of grating chi self, thereby can promote the smoothness nature that the grating chi pasted, on the other hand, the second link through being T shape has provided tape measure piece and the connection structure that the grating read head is connected at the cushion cap board, and also utilized the structure of T shape more effectively, make the tape measure piece can be more firm and install on the cushion cap board more succinctly.

Preferably, the connecting piece comprises at least two connecting plates, at least two supporting strips, at least two push rods and at least two baffle blocks, the connecting plates are arranged in the second connecting holes in a penetrating mode, the connecting plates are connected to the surfaces, close to the second connecting holes, of the second connecting ends in a sliding mode, and the connecting plates can move towards the direction of the center line far away from the first connecting holes; the support bar is arranged at one end of the connecting plate far away from the first connecting hole and can be abutted against a separation block formed on the surface of one side of the tape measure block far away from the second connecting end; the push rod is arranged on the inner sides of the first connecting holes and the connecting plates in a sliding mode, the push rod comprises a driving part and a connecting part, the driving part is abutted to the inner sides of the connecting plates, and the driving part is provided with a guide surface which enables the connecting plates to move in the direction away from the center line of the first connecting holes; the separation stop block is fixedly connected to one end, far away from the driving portion, of the connecting portion, and when the separation stop block abuts against the upper surface of the second connecting end, the driving portion enables the outer side of the connecting plate to abut against the inner wall of the second connecting hole.

By adopting the technical scheme, when the tape measure block is arranged on the second connecting frame, the tape measure block is abutted against the lower surface of the second connecting end firstly, the connecting plates are positioned in the inner ring of the second connecting hole, then the push rod extends into the inner sides of the connecting plates from the first connecting hole, in the process, the guide surface on the driving part can enable the connecting plates to move towards the direction far away from the central line of the first connecting hole, when the outer wall of the connecting plate is abutted against the inner wall of the second connecting hole, the support bar and the side surface of the tape measure block far away from the second connecting end form the separation and abutment, and simultaneously the separation and abutment block is also abutted against the upper surface of the second connecting end, so that the tape measure block is fixed on the second connecting frame, compared with the connecting mode of matching through bolts and nuts, the design mode can be realized by only holding the tape measure block and pushing the push rod, thereby being convenient for mounting and dismounting the tape measure block or the grating read head on the second connecting frame, thereby contributing to saving the adjustment time between the preparation work and the detection work.

Preferably, a plurality of limiting bulges capable of elastically deforming are uniformly distributed on the outer wall of the connecting plate, and the inner wall of the second connecting hole is provided with a clamping groove for embedding the limiting bulges.

Through adopting above-mentioned technical scheme, because of the spacing bellied setting that can take place elastic deformation, then when the outer wall of connecting plate and the inner wall butt of second connecting hole, spacing arch just can be embedded into in the inlay card groove to spacing arch is the state of compressed, thereby just makes connecting plate and second connecting hole butt ground inseparabler, helps promoting the stability of being connected between subsides chi piece and the second link.

Preferably, a sliding groove with a T-shaped section is arranged at the joint of the second connecting end and the connecting plate, a sliding block matched with the sliding groove is arranged at the joint of the connecting plate and the second connecting plate, and the connecting plate is in sliding connection with the second connecting end through the matching of the sliding block and the sliding groove; be provided with first spring in the spout, first spring one end and the inner wall fixed connection of spout, the other end and slider fixed connection to first spring is used for making the connecting plate to the direction removal that is close to first connecting hole central line.

Through adopting above-mentioned technical scheme, on the one hand, under the cooperation of spout and slider, make the connecting plate when moving to keeping away from first connecting hole central line direction, the movement track of connecting plate can be more accurate, thereby make the drive division of push rod when the top moves the connecting plate and remove, the motion of push rod can be more smooth, on the other hand, because of the setting of first spring, then when the push rod is taken out from the inboard of connecting plate, first spring alright be used in the connecting plate with the elastic force of self, so that a plurality of connecting plates move to the central line direction that is close to first connecting hole, compare in the push rod take out the back need the artifical mode of withholding the support bar, this kind of design, make the tape measure piece can more easily follow the second connecting end and dismantle, help promoting work efficiency.

Preferably, the connecting part is sleeved with a second spring, one end of the second spring is fixedly connected with the upper surface of the second connecting end, the other end of the second spring is fixedly connected with the blocking block, and the second spring is used for enabling the driving part to be separated from the inner side of the connecting plate; the upper surface of the second connecting end is provided with a U-shaped rod, two ends of the U-shaped rod are respectively hinged with the upper surface of the second connecting end, and the bent inner side of the U-shaped rod is abutted against the separating and blocking block to limit the reset sliding of the push rod; one end of the separation stop block, which is close to the bent inner side of the U-shaped rod, comprises two arc-shaped abutting surfaces and two planar separation stop surfaces, and the curvature centers of the two abutting surfaces and the two U-shaped rods are hinged on the same straight line; the blocking surface is positioned between the two abutting surfaces, and the direction of the force applied to the blocking surface by the bent inner side of the U-shaped rod is parallel to the axial direction of the push rod.

By adopting the scheme, when the push rod is required to extend into the inner side of the connecting plate, the separating stop block can be properly pressed firstly, so that one end of the abutting surface, which is far away from the separating stop surface, is abutted against the bent inner side of the U-shaped rod, then the U-shaped rod can be pulled off, so that the bent inner side of the U-shaped rod gradually moves towards the separating stop surface, in the process, the bent inner side of the U-shaped rod can apply pressing force which is parallel to the length direction of the push rod to the separating stop block through the abutting surface, then when the bent inner side of the U-shaped rod moves to the position of the separating stop surface, the separating stop block can slightly move upwards to enable the separating stop surface to be abutted against the bent inner side of the U-shaped rod, so that the aim of locking the push rod and the separating stop block is fulfilled, when the push rod is required to be unlocked, only the U-shaped rod needs to slightly swing to enable the bent inner side of the U-shaped rod to be abutted against the abutting surface, then the second spring can apply the elastic force of the separating stop block, then separate the dog accessible butt and exert the power of keeping away from the dog face direction to the U-shaped pole, the U-shaped pole alright fall to the upper surface of second link on self gravity and the effect of separating the dog at last to just reach the purpose of quick unblock.

In a second aspect, the present application provides a grating ruler installation method, which adopts the following technical scheme:

a grating ruler installation method comprises the following steps:

s1: mounting the tape-out block on a bearing plate;

s2: one end of the grating ruler is pasted on the connection start position, and the other end of the grating ruler penetrates through the through hole in the ruler pasting block;

s3: moving the bearing plate along the length extension direction of the guide rail;

s4: and when the bearing plate moves to the tail end of the length extension direction of the guide rail, separating the grating ruler which is already adhered to the base from the grating ruler which is not adhered.

Through adopting above-mentioned technical scheme, the error between the motion path of subsides chi piece and grating read head can reduce, makes the error between the motion path of the subsides route of grating chi and grating read head also can reduce to when carrying out detection achievement, the grating read head is difficult for not reading the grating chi, and then is difficult for appearing the condition that the signal lost.

In summary, the present application includes at least one of the following beneficial technical effects:

1. compared with a mode of manually pasting the grating ruler, the design mode has the advantages that the movement tracks of the ruler block and the grating reading head are realized through the guide rail, and the movement tracks of the ruler block and the grating reading head are basically consistent, so that errors are not easy to exist in the pasting path of the grating ruler and the movement path of the grating reading head, the grating ruler is not easy to read by the grating reading head, and the signal loss is not easy to occur;

2. through the arrangement of the avoiding surface, an included angle between the grating ruler and the inner wall of the through hole at the end close to the connection start position relative to the grating ruler and the inner wall of the through hole at the end close to the connection start position is changed into an obtuse angle from a right angle, so that the end close to the connection start position of the through hole is not easy to block the grating ruler in the process of moving away from the connection start position of the ruler block, and the grating ruler can be more smoothly pasted;

3. through the arrangement of the limiting through grooves, when the tape sticking block moves, the deviation of the grating ruler vertical to the moving direction of the tape sticking block can be limited, so that the pasting path of the grating ruler can be more consistent with the moving path of the tape sticking block, and the error between the pasting path of the grating ruler and the moving path of the grating reading head can be further reduced.

Drawings

Fig. 1 is a schematic structural view of a grating ruler installation device in the embodiment 1 of the present application when polishing processing is performed.

Fig. 2 is a schematic structural diagram of the grating scale mounting device in embodiment 1 of the present application when a grating scale is attached.

Fig. 3 is a schematic structural diagram showing a specific structure of a tape measure block in embodiment 1 of the present application.

Fig. 4 is a sectional structural view of a connector in embodiment 2 of the present application.

Fig. 5 is an enlarged view at a in fig. 4.

Description of reference numerals: 1. a base; 11. a grating scale; 12. connecting a start bit; 2. a guide rail; 3. a bearing plate; 31. a tape sticking block; 311. a through hole; 312. an avoidance surface; 313. a limiting through groove; 314. a second connection hole; 315. a clamping groove; 316. a chute; 317. a first spring; 32. a grating read head; 4. a first connecting frame; 5. polishing the workpiece; 51. a moving guide rail; 52. a spindle motor; 53. processing a cutter; 54. a rail clamp; 6. a second link frame; 61. a first connection end; 62. a second connection end; 621. a first connection hole; 7. a connecting member; 71. a connecting plate; 711. a limiting bulge; 712. a slider; 72. a supporting strip; 73. a push rod; 731. a drive section; 732. a connecting portion; 733. a guide surface; 74. a separating block; 741. an abutting surface; 742. a barrier surface; 8. a second spring; 9. a U-shaped rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses grating chi installation device.

Embodiment 1, referring to fig. 1, a grating ruler installation apparatus includes a base 1, two guide rails 2, two bearing plates 3, and two first connecting frames 4, where the two guide rails 2 are parallel to each other and are arranged on the base 1 at intervals; the bearing plate 3 is connected to the base 1 by the guide rail 2 in a sliding manner, in the embodiment, the object to be detected is placed on the bearing plate 3 and moves along the length extending direction of the guide rail 2 through the bearing plate 3, so that the purpose of changing the linear displacement of the object to be detected is achieved, and in other embodiments, the guide rail 2 can also be an arc-shaped guide rail so as to achieve the purpose of changing the angular displacement of the object to be detected.

Referring to fig. 1 and 2, when the guide rail 2 is linear or arc-shaped, the installation manner of the grating ruler 11 is consistent, so that the following description only takes the guide rail 2 as a linear guide rail as an example, in this embodiment, the surface of the base 1 to which the grating ruler 11 is adhered is located on the side surface of the base 1, and the adhering position of the grating ruler 11 is close to one of the guide rails 2, and since the surface of the base 1 to which the grating ruler 11 is adhered is uneven after the base 1 is actually produced, the surface of the base 1 to which the grating ruler 11 is adhered needs to be polished before the grating ruler 11 is adhered.

Referring to fig. 1 and 2, a first connecting frame 4 is detachably connected to a bearing plate 3, and the first connecting frame 4 is provided with a polishing member 5, specifically, the polishing member 5 includes a moving guide rail 51, a spindle motor 52, a processing tool 53 and a guide rail clamp 54, the moving guide rail 51 is connected to the first connecting frame 4, and the length direction of the moving guide rail 51 is perpendicular to the length direction of the guide rail 2 and is also perpendicular to one side surface of the base 1 to which the grating ruler 11 is adhered; the spindle motor 52 is connected to the moving guide 51 through a slider so as to be slidably connected to the first link 4, and the sliding direction of the spindle motor 52 is parallel to the longitudinal direction of the moving guide 51, and a rotary machining tool 53 is coaxially and fixedly connected to an output shaft of the spindle motor 52.

Referring to fig. 1 and 2, the guide rail clamp 54 is mounted on the moving guide rail 51 and located on the side of the joint of the spindle motor 52 and the moving guide rail 51 away from the base 1, and before the grating scale 11 is mounted, the first connecting frame 4 is moved along the guide rail 2 by the support plate 3, and in this process, the machining tool 53 is kept in contact with the surface of the base 1 on the side to which the grating scale 11 is attached, and the moving path of the spindle motor 52 is detected by an external tool, so that the degree of unevenness of the surface of the base 1 on the side to which the grating scale 11 is attached can be calculated, and after the detection is completed, the first connecting frame 4 is reset to the starting position of the guide rail 2, and the spindle motor 52 is moved to a designated position on the moving guide rail 51, and then the position of the spindle motor 52 is limited by the guide rail clamp 54, and then the spindle motor 52 is started to rotate the machining tool 53, finally, the first connecting frame 4 is moved through the bearing plate 3, so that the processing tool 53 polishes the base 1, the subsequent grating ruler 11 can be smoothly adhered to the base 1, and the first connecting frame 4 can be detached from the bearing plate 3 after polishing.

Referring to fig. 2 and 3, in the present embodiment, a second connection frame 6 having a T-shape is fixedly connected to the support plate 3, and a tape block 31 or a grating reading head 32 is connected to the second connection frame 6, and the tape block 31 and the grating reading head 32 are connected to the second connection frame 6 in the same manner, so that the tape block 31 will be described as an example in the following, the second connection frame 6 includes a first connection end 61 and two second connection ends 62, wherein the first connection end 61 is located at an upper side and fixedly connected to the support plate 3, and the two second connection ends 62 are located at a lower side and fixedly connected to the tape block 31 by bolts, so that the upper grating reading head 32 can be removed and replaced after the tape block 31 is used.

Referring to fig. 2 and 3, in this embodiment, the through hole 311 for the grating ruler 11 to pass through is integrally formed in the tape applying block 31, and the surface of the side, which is close to the base 1, of the tape applying block 31 abuts against the grating ruler 11, and the base 1 is provided with the connection start bit 12 for one end of the grating ruler 11 to be pre-pasted, when pasting work of the grating ruler 11 is to be performed, the connection start bit 12 for one end of the grating ruler 11 is pasted first, and the other end of the grating ruler 11 passes through the through hole 311 and is wound on the winding disc, then the tape applying block 31 is moved along the guide rail 2 by the support plate 3, in this process, the grating ruler 11 on the side, which is far from the base 1, of the through hole 311 gradually passes through the through hole 311 and enters between the surfaces of the side, which is close to the base 1, the tape applying block 31 presses the grating ruler 11 to paste the grating ruler 11 on the base 1, and then when the support plate 3 moves to the end point of the guide rail 2, the grating scale 11 already adhered on the base 1 can be separated from the grating scale 11 not adhered, thereby completing the adhering work of the grating scale 11.

Referring to fig. 2 and 3, in the present embodiment, after the grating scale 11 is attached, the scale block 31 can be detached from the second connecting frame 6, and then the grating reading head 32 is installed to perform the detection operation, and since the grating reading head 32 and the scale block 31 both move along the guide rail 2, the error between the attachment path of the grating scale 11 and the movement path of the grating reading head 32 is reduced, so that the grating reading head 32 cannot easily read the grating scale 11, and the signal loss is not likely to occur.

Referring to fig. 2 and fig. 3, in this embodiment, an avoiding surface 312 is disposed on an inner wall of the through hole 311 near one end of the connection start bit 12, wherein a distance from the avoiding surface 312 near one end of the base 1 is closer to one end of the base 1, when the grating scale 11 abuts against the avoiding surface 312, the avoiding surface 312 can apply a component force to the grating scale 11 in a direction toward the connection start bit 12, so that in a moving process of the scale block 31, an included angle between a portion of a side surface of the grating scale 11 and the scale block 31 near the base 1 and an inner wall of one end of the through hole 311 near the connection start bit 12 is changed from a right angle to an obtuse angle with respect to the grating scale 11, so that an obstruction of the inner wall of one end of the through hole 311 near the connection start bit 12 to the grating scale 11 is weakened, and the grating scale 11 can be more smoothly pasted on the base 1.

Referring to fig. 2 and 3, in the present embodiment, a limiting through groove 313 is formed on a surface of the tape measure block 31 on a side close to the base 1, and one end of the limiting through groove 313 in a communication direction is communicated with the through hole 311, so that when the tape measure block 31 moves, a deviation of the linear scale 11 perpendicular to a movement direction of the tape measure block 31 is limited by the limiting through groove 313, so that a pasting path of the linear scale 11 can be more consistent with a movement path of the tape measure block 31, and an error between the pasting path of the linear scale 11 and a movement path of the grating reading head 32 can be further reduced.

The implementation principle of the installation device of the grating ruler 11 in the embodiment of the application is as follows: through the mode that the tape-out block 31 and the grating reading head 32 both move along the guide rail 2, the error between the pasting path of the grating scale 11 and the moving path of the tape-out block 31 is reduced, so the error between the pasting path of the grating scale 11 and the moving path of the grating reading head 32 is also reduced, and the grating reading head 32 is not easy to read the grating scale 11 during detection, so that the situation of signal loss is not easy to occur.

Embodiment 2, referring to fig. 4 and 5, the difference from embodiment 1 lies in that two second connecting ends 62 are provided with first connecting holes 621, the tape measure block 31 is provided with second connecting holes 314 coaxially communicated with the first connecting holes 621, and the first connecting holes 621 and the second connecting holes 314 are provided with connecting pieces 7 for fixing the tape measure block 31 and the second connecting frame 6, specifically, the connecting pieces 7 comprise two connecting plates 71, a supporting bar 72, a push rod 73 and a separation block 74, the connecting plates 71 are tile-shaped, and the connecting plates 71 are inserted into the inner ring of the second connecting holes 314, in this embodiment, the inner wall of the first connecting holes 621 near one end of the second connecting holes 314 is provided with sliding grooves 316 with T-shaped cross sections, one end of the connecting plates 71 near the first connecting holes 621 is fixedly connected with a sliding block 712 adapted to the sliding grooves 316, and the sliding block 712 is slidably arranged in the sliding grooves 316, the purpose of slidably coupling the coupling plate 71 with the second coupling end 62 is achieved, and the sliding direction of the coupling plate 71 is parallel to the diameter direction of the first coupling hole 621.

Referring to fig. 4 and 5, the supporting bar 72 is fixedly connected to the end of the connecting plate 71 away from the first connecting hole 621, and when the outer wall of the connecting plate 71 abuts against the inner wall of the second connecting hole 314, the supporting bar 72 will form a blocking abutment with the surface of the tape measure block 31 away from the second connecting end 62, so as to fix the tape measure block 31 on the second connecting end 62; the push rod 73 includes a driving part 731 and a connecting part 732, the driving part 731 is substantially semi-ellipsoid-shaped, and the end of the driving part 731 with larger cross-sectional area is connected to the connecting part 732, so that the portion of the outer wall of the driving part 731 with spherical shape forms a guiding surface 733 for guiding the connecting plate 71 away from the center line of the first connecting hole 621; the connecting portion 732 is cylindrical and is coaxially and fixedly connected to an end of the connecting portion 732 away from the driving portion 731 with the stopper 74, so that when the connecting plate 71 is located in the inner ring of the second connecting hole 314, the push rod 73 can penetrate into the first connecting hole 621 and the inner side of the connecting plate 71, in the process, the guide surface 733 can make the connecting plate 71 gradually move in the direction away from the center line of the first connecting hole 621, and finally, the purpose of fixing the tape measure block 31 at the second connecting end 62 can be achieved only by abutting the outer wall of the connecting plate 71 against the inner wall of the second connecting hole 314.

Referring to fig. 4 and 5, in order to further enable the connection between the connection plate 71 and the inner wall of the second connection hole 314 to be more tight, a plurality of rubber-made limiting protrusions 711 are uniformly and fixedly connected to the outer wall of the connection plate 71, and an embedding groove 315 for the limiting protrusions 711 to be embedded into is formed in the inner wall of the second connection hole 314, so that when the outer wall of the connection plate 71 abuts against the inner wall of the second connection hole 314, the limiting protrusions 711 can be embedded into the embedding groove 315, and the limiting protrusions 711 can be in a compressed state at this time, so that the connection plate 71 and the inner wall of the second connection hole 314 are in expansion connection, and further, the connection stability between the tape sticking block 31 and the second connection frame 6 is improved.

Referring to fig. 4 and 5, in the present embodiment, a first spring 317 is further disposed in the sliding slot 316, one end of the first spring 317 is fixedly connected to the sliding block 712, the other end of the first spring 317 is fixedly connected to the inner wall of the sliding slot 316, and the first spring 317 has a tendency of moving the connecting plate 71 toward the center line direction of the first connecting hole 621; the connecting portion 732 is coaxially sleeved with a second spring 8, wherein one end of the second spring 8 is fixedly connected to the upper surface of the second connecting end 62, the other end of the second spring 8 is fixedly connected to a side surface of the separation block 74 close to the second connecting end 62, and the second spring 8 has a tendency to make the driving portion 731 on the push rod 73 separate from the inner side of the connecting plate 71, so when the tape measure block 31 is to be detached from the second connecting frame 6, the restriction of the separation block 74 towards the upper surface direction of the second connecting end 62 can be removed, the second spring 8 can make the separation block 74 move upward as a whole, so that the driving portion 731 of the push rod 73 separates from the inner side of the connecting plate 71, and at the same time, the second spring 8 can make the connecting plate 71 move towards the direction of the center line of the first connecting hole 621, so as to achieve the purpose of quick detachment.

Referring to fig. 4 and 5, a U-shaped rod 9 is disposed on the upper surface of the second connecting end 62, two ends of the opening of the U-shaped rod 9 are respectively hinged to the second connecting end 62, and the blocking piece 74 can be located inside the bend of the U-shaped rod 9, in this embodiment, in order to match with the U-shaped rod 9, one end of the blocking piece 74 away from the connecting portion 732 includes an abutting surface 741 in a spherical shape and a blocking surface 742 in a planar shape, wherein the abutting surface 741 is provided with two abutting surfaces, and the curvature center of the abutting surface 741 is on the same straight line with the two hinges of the U-shaped rod 9; the blocking surface 742 is located between the two abutment surfaces 741, so that when the bent inner side of the U-shaped bar 9 abuts against the blocking surface 742, the return sliding of the push rod 73 is restricted, and the tape measure block 31 is stably fixed to the second connecting frame 6.

Referring to fig. 4 and 5, when the limit of the push rod 73 is to be released, the U-shaped rod 9 is only slightly swung to make the bent inner side of the U-shaped rod 9 abut against the abutting surface 741, then the second spring 8 can apply its own elastic force to the blocking piece 74, then the blocking piece 74 can apply a force to the U-shaped rod 9 through the abutting surface 741 in a direction away from the blocking surface 742, and finally the U-shaped rod 9 can fall onto the upper surface of the second connecting end 62 under its own weight and the effect of the blocking piece 74, so as to achieve the purpose of quick unlocking.

The following method for installing the grating ruler comprises the following steps:

s1: mounting the first connecting frame 4 on the bearing plate 3;

s2: mounting a grinding member 5 on the first connecting frame 4;

s3: sliding the bearing plate 3 along the guide rail 2, and keeping the processing cutter 53 in contact with the base 1 so as to calculate the concave-convex degree of the surface of the base 1 on the side where the grating ruler 11 is adhered;

s4: according to the concave-convex degree of the surface of one side of the grating ruler 11 supplied to the base 1, the spindle motor 52 is moved to the appointed position of the motion guide rail 51, and the sliding of the spindle motor 52 is locked through the guide rail clamp 54;

s5: starting the spindle motor 52 to rotate the machining tool 53;

s6: sliding the bearing plate 3 along the guide rail 2;

s7: after polishing is finished, the first connecting frame 4 is detached from the bearing plate 3;

s8: mounting the second connecting frame 6 on the bearing plate 3, and mounting the tape measure block 31 on the second connecting frame 6;

s9: one end of the grating ruler 11 is pasted on the connection start position 12, and the other end penetrates through the through hole 311 on the ruler pasting block 31 and is wound on a winding disc;

s10: sliding the bearing plate 3 along the guide rail 2;

s11: when the bearing plate 3 moves to the tail end of the length extension direction of the guide rail 2, the grating ruler 11 which is already adhered on the base 1 is separated from the grating ruler 11 which is not adhered.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A grating ruler installation device is characterized in that: the device comprises a base (1), a guide rail (2), a bearing plate (3) and a tape measure block (31), wherein the guide rail (2) is arranged on the base (1), and the guide rail (2) is used for providing a motion path of an object to be detected; the bearing plate (3) is connected with the base (1) in a sliding mode through the guide rail (2), and the bearing plate (3) is detachably connected with the grating reading head (32) and the tape measure block (31); the utility model discloses a grating ruler, including base (1), one side surface that base (1) supplied grating ruler (11) to bond has connection initiating position (12) that supplies grating ruler (11) one end to paste in advance, and tape measure piece (31) are provided with through-hole (311) that the other end that supplies grating ruler (11) worn out, and tape measure piece (31) and base (1) one side surface that is close to each other can with grating ruler (11) butt moreover.

2. The grating scale mounting apparatus according to claim 1, wherein: an avoiding surface (312) is arranged on the inner wall of one end, close to the connection starting position (12), of the through hole (311), and the avoiding surface (312) can apply component force to the grating ruler (11) in the direction towards the connection starting position (12).

3. The grating scale (11) mounting device according to claim 1, wherein: and a limiting through groove (313) for the grating ruler (11) to pass through is arranged on the surface of one side of the tape-out block (31), and the limiting through groove (313) is communicated with the through hole (311).

4. The grating scale mounting apparatus according to claim 1, wherein: the polishing device is characterized by further comprising a first connecting frame (4) arranged on the bearing plate (3) and a polishing piece (5) arranged on the first connecting frame (4), wherein the polishing piece (5) comprises a moving guide rail (51), a spindle motor (52), a processing cutter (53) and a guide rail clamp (54), the moving guide rail (51) is fixedly connected to the first connecting frame (4), and the length direction of the moving guide rail (51) is parallel to the concave-convex direction of the surface, for the grating ruler (11) to adhere, of the base (1); the spindle motor (52) is in sliding connection with the first connecting frame (4) through a moving guide rail (51), and an output shaft of the spindle motor (52) is connected with a machining tool (53) so as to grind and flatten the surface of one side of the grating ruler (11) of the base (1); the rail clamp (54) is disposed on the moving rail (51) and limits the sliding of the spindle motor (52).

5. The grating scale mounting apparatus according to claim 1, wherein: the side surface of the base (1) to which the grating ruler (11) is adhered is positioned on the side surface of the base (1); the bearing plate (3) is provided with a T-shaped second connecting frame (6), the second connecting frame (6) comprises a first connecting end (61) and two second connecting ends (62), the first connecting end (61) is positioned at the upper side and fixedly connected with the bearing plate (3), and the two second connecting ends (62) are positioned at the lower side and provided with first connecting holes (621); the tape measure block (31) is arranged on the two second connecting ends (62), a second connecting hole (314) communicated with the first connecting hole (621) is formed in the tape measure block (31), and a connecting piece (7) for fixing the tape measure block (31) and the second connecting frame (6) is arranged at the first connecting hole (621) and the second connecting hole (314).

6. The grating scale mounting apparatus according to claim 5, wherein: the connecting piece (7) comprises at least two connecting plates (71), at least two supporting strips (72), at least two push rods (73) and at least two separating blocks (74), the connecting plates (71) are arranged in the second connecting holes (314) in a penetrating mode, the connecting plates (71) are connected to the surfaces, close to the second connecting holes (314), of the second connecting ends (62) in a sliding mode, and the connecting plates (71) can move towards the direction of the center line far away from the first connecting holes (621); the supporting strip (72) is arranged at one end, far away from the first connecting hole (621), of the connecting plate (71), and the supporting strip (72) can be abutted against a baffle formed on one side surface, far away from the second connecting end (62), of the tape measure block (31); the push rod (73) is arranged on the inner sides of the first connecting hole (621) and the plurality of connecting plates (71) in a sliding mode, the push rod (73) comprises a driving part (731) and a connecting part (732) which are in contact with the inner sides of the connecting plates (71), and the driving part (731) is provided with a guide surface (733) which enables the connecting plates (71) to move in the direction away from the center line of the first connecting hole (621); the separation stopper (74) is fixedly connected to one end of the connecting part (732) far away from the driving part (731), and when the separation stopper (74) is abutted to the upper surface of the second connecting end (62), the driving part (731) enables the outer side of the connecting plate (71) to be abutted to the inner wall of the second connecting hole (314).

7. The grating scale mounting apparatus according to claim 6, wherein: a plurality of limiting bulges (711) capable of elastically deforming are uniformly distributed on the outer wall of the connecting plate (71), and clamping and embedding grooves (315) for embedding the limiting bulges (711) are formed in the inner wall of the second connecting hole (314).

8. The grating scale mounting apparatus according to claim 6, wherein: a sliding groove (316) with a T-shaped section is formed in the joint of the second connecting end (62) and the connecting plate (71), a sliding block (712) matched with the sliding groove (316) is arranged in the joint of the connecting plate (71) and the second connecting plate (71), and the connecting plate (71) is in sliding connection with the second connecting end (62) through the matching of the sliding block (712) and the sliding groove (316); a first spring (317) is arranged in the sliding groove (316), one end of the first spring (317) is fixedly connected with the inner wall of the sliding groove (316), the other end of the first spring (317) is fixedly connected with the sliding block (712), and the first spring (317) is used for enabling the connecting plate (71) to move towards the direction close to the center line of the first connecting hole (621).

9. The grating scale mounting apparatus according to claim 6, wherein: the connecting part (732) is sleeved with a second spring (8), one end of the second spring (8) is fixedly connected with the upper surface of the second connecting end (62), the other end of the second spring (8) is fixedly connected with the spacing stop block (74), and the second spring (8) is used for enabling the driving part (731) to be separated from the inner side of the connecting plate (71); a U-shaped rod (9) is arranged on the upper surface of the second connecting end (62), two ends of the U-shaped rod (9) are hinged to the upper surface of the second connecting end (62), and the bent inner side of the U-shaped rod (9) is abutted to a separation stop block (74) to limit the reset sliding of the push rod (73); one end, close to the bending inner side of the U-shaped rod (9), of the blocking piece (74) comprises an arc-shaped abutting surface (741) and a plane-shaped blocking surface (742), the number of the abutting surfaces (741) is two, and the curvature center of the abutting surface (741) and the two hinges of the U-shaped rod (9) are located on the same straight line; the blocking surface (742) is positioned between the two abutting surfaces (741), and the direction of the force exerted by the bent inner side of the U-shaped rod (9) on the blocking surface (742) is parallel to the axial direction of the push rod (73).

10. A grating scale mounting method, based on the grating scale mounting device of any one of claims 1-9, characterized by comprising the following steps:

s1: mounting the tape block (31) on the bearing plate (3);

s2: one end of the grating ruler (11) is pasted on the connection start position (12), and the other end penetrates through the through hole (311) on the ruler block (31);

s3: the bearing plate (3) moves along the length extension direction of the guide rail (2);

s4: when the bearing plate (3) moves to the tail end of the length extension direction of the guide rail (2), the grating ruler (11) which is already adhered on the base (1) is separated from the grating ruler (11) which is not adhered.