Arcuate grating ruler mounting and pressing device

Abstract

A circular arc grating ruler mounting and clamping device relates to the field of circular arc grating ruler mounting fixtures, used to mount the grating ruler to a reserved position on the rotating shaft base of a rotating device. The device includes a mounting device and a clamping device. The mounting device includes a mounting base, a snap-fit ​​assembly, and a protective shell. The protective shell accommodates the grating ruler. One of the mounting bases is connected to a snap-fit ​​assembly for snapping the protective shell. The clamping device includes a fixed seat, an adjusting seat, a clamping block, and a locking assembly. The locking assembly locks the adjusting seat onto the fixed seat. The clamping block clamps the head end of the grating ruler connected to the reserved position. The adjusting seat clamps the tail end of the grating ruler connected to the reserved position. This invention provides a circular arc grating ruler mounting and clamping device to solve the technical problems of easy deformation and twisting of the grating ruler during installation and the complex operation of clamping the grating ruler using tape wrapping in the prior art.

Description

Technical Field

[0001] This invention relates to the field of mounting fixtures for arc grating rulers, and more specifically, to a mounting and clamping device for arc grating rulers. Background Technology

[0002] As a high-precision measuring tool, the linear encoder / reading head is widely used in rotating mechanisms. Due to the limited installation space in rotating mechanisms, a compact, adhesive-bonded circular arc linear encoder is often chosen.

[0003] The existing adhesive-bonded circular arc grating ruler has the following disadvantages during installation: 1. In the prior art, the grating ruler installation tool can ensure that the grating ruler is tangent to the rotating shaft base of the rotating mechanism. However, the grating ruler is prone to deformation and twisting during the installation process.

[0004] 2. In the prior art, after the grating ruler is glued together, tape (such as polyester fixing tape) is usually wrapped around the surface of the grating ruler to press it firmly, and the grating ruler is left to bond firmly (for example, the glue curing time is 24 hours); however, the operation of pressing the grating ruler by wrapping tape is relatively complicated. Summary of the Invention

[0005] The purpose of this invention is to provide a circular arc grating ruler installation and clamping device, which to a certain extent solves the technical problems in the prior art where the grating ruler is prone to deformation and twisting during installation, and the operation of clamping the grating ruler by wrapping with tape is relatively complicated.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A circular arc grating ruler mounting and clamping device is used to mount the grating ruler on a reserved position on the rotating shaft base of a rotating device, including a mounting device and a clamping device. The mounting device includes a mounting base, a snap-fit ​​assembly, and a protective shell; the mounting base is used to support and connect the grating ruler, and there is at least one mounting base; the protective shell is used to accommodate the grating ruler; one of the mounting bases is connected to the snap-fit ​​assembly; the snap-fit ​​assembly is used to snap the protective shell and to ensure that the height of the grating ruler inside the protective shell is the same as the height of the reserved ruler position; The clamping device includes a fixed base, an adjusting base, a clamping block, and a locking assembly; the fixed base is fixedly connected to the rotating shaft base, the adjusting base is rotatably connected to the fixed base, and the locking assembly connects the fixed base and the adjusting base to lock the adjusting base onto the fixed base; the clamping block is fixedly connected to the fixed base and is used to clamp the first end of the grating ruler connected within the reserved size; the adjusting base is used to clamp the last end of the grating ruler connected within the reserved size.

[0007] In any of the above technical solutions, optionally, the fixing seat includes a fixing arc portion and a fixing protrusion portion; the fixing arc portion is used to be fixedly connected to the rotating shaft base, the fixing protrusion portion is fixedly connected to the fixing arc portion, and there is a fixing part through groove between the fixing protrusion portion and the rotating shaft base to accommodate the grating ruler, the fixing part through groove extends along the circumferential direction of the fixing arc portion and is open at both ends; The adjustment seat includes an adjustment arc portion and an adjustment protrusion portion; the adjustment arc portion is rotatably connected to the fixed arc portion, the adjustment protrusion portion is fixedly connected to the adjustment arc portion, and there is an adjustment slot between the adjustment protrusion portion and the rotating shaft base to accommodate the grating ruler; the adjustment slot extends along the circumferential direction of the adjustment arc portion and is open at both ends; the adjustment protrusion portion is used to press and connect the grating ruler. The clamping block is fixedly connected to the fixed protrusion, and there is a clamping block through groove between the clamping block and the rotating shaft base to accommodate the grating ruler. The clamping block through groove extends along the circumferential direction of the fixed arc and is open at both ends.

[0008] In any of the above technical solutions, optionally, the arc grating ruler mounting and clamping device further includes a fastening screw; the adjusting arc portion has an adjusting groove; the adjusting groove is arc-shaped and extends along the circumferential direction of the adjusting arc portion; the fastening screw passes through the adjusting groove and is fixedly connected to the fixed arc portion; when the adjusting arc portion rotates along the fixed arc portion, the fastening screw is at different positions in the adjusting groove. The number of fastening screws shall not be less than two.

[0009] In any of the above technical solutions, optionally, the adjusting protrusion has a locking groove; the locking groove opens upwards; The locking assembly includes a locking rod and a spherical bearing; one end of the spherical bearing is fixed to the top of the fixed protrusion, and the other end is connected to the locking rod; the locking rod can rotate around the spherical bearing so that a portion of the locking rod is engaged in the locking groove.

[0010] In any of the above technical solutions, optionally, the locking rod includes a first rod portion, a second rod portion, and a connecting nut arranged coaxially; the connecting nut connects the end of the first rod portion and the end of the second rod portion; the connecting nut is rotatable to adjust the distance between the end of the first rod portion and the end of the second rod portion; The end of the first rod that is away from the connecting nut extends out of the locking groove, and the end of the second rod that is away from the connecting nut is fixedly connected to the spherical bearing.

[0011] In any of the above technical solutions, optionally, the fixing seat includes a positioning locking groove; the positioning locking groove is disposed on the fixing arc portion, the positioning locking groove extends along the circumferential direction of the fixing arc portion and is open at both ends, the positioning locking groove is open on the outer peripheral wall of the fixing arc portion; the positioning locking groove is used to lock the rotating shaft base.

[0012] In any of the above technical solutions, optionally, the snap-fit ​​component is used to make the output grating ruler tangent to the rotating shaft base; The snap-fit ​​assembly includes a fixing block, an adjusting block, and an adjusting bolt; the fixing block is fixedly connected to the top of the mounting base, and the adjusting block is located at the top of the mounting base; the adjusting bolt is rotatably connected to the fixing block, and one end of the adjusting bolt passes through the fixing block and is screwed to the adjusting block; the fixing block, the adjusting block, the adjusting bolt, and the top of the mounting base form a cavity to accommodate the protective shell; The adjusting bolt is used to rotate to change the distance between the adjusting block and the fixed block, so as to clamp the protective shell; The number of adjusting bolts shall not be less than two.

[0013] Optionally, in any of the above technical solutions, the mounting device further includes a separation structure for separating the grating ruler and the backing paper, the separation structure being connected to the top of the mounting base.

[0014] Optionally, in any of the above technical solutions, the mounting device further includes a guide structure for guiding the protective shell; the guide structure is connected to the top of the mounting base; Along the extending direction of the protective shell, the guide structure and the separation structure are located on both sides of the snap-fit ​​assembly, and the separation structure is located between the snap-fit ​​assembly and the clamping device.

[0015] In any of the above technical solutions, optionally, the guide structure includes a pair of guide posts; in the pair of guide posts, the protective shell passes through the gap between the two guide posts, and the two guide posts are arranged sequentially along the extension direction of the protective shell; The separation structure includes a pair of separation columns; in the pair of separation columns, the protective shell passes through the gap between the two separation columns; the protective shell is provided with an output port for the back paper to be output, and the output port is located on the side of the separation column away from the pressing device.

[0016] The main beneficial effects of this invention are: The present invention provides an arc-shaped grating ruler mounting and clamping device, comprising a mounting device and a clamping device. By placing the grating ruler inside the protective housing, deformation and twisting of the grating ruler during installation can be effectively prevented. Through the snap-fit ​​assembly, the height of the grating ruler inside the protective housing can be made the same as the reserved height on the rotating shaft base, facilitating the fixing of the grating ruler to the reserved position on the rotating shaft base. A fixing seat is fixedly connected to the rotating shaft base, and an adjusting seat is rotatably connected to the fixing seat, allowing the clamping block fixedly connected to the fixing seat to press the head end of the grating ruler into the reserved position on the rotating shaft base. The rotating shaft base is moved so that the grating ruler is connected in the reserved size position of the rotating shaft base. The position of the adjusting seat is adjusted and the tail end of the grating ruler is pressed into the reserved size position of the rotating shaft base. Then, the locking assembly is connected to the fixed seat and the adjusting seat to lock the adjusting seat onto the fixed seat, thereby fixing the head and tail ends of the grating ruler in the reserved size position of the rotating shaft base. That is, the arc grating ruler mounting and clamping device clamps the head and tail ends of the grating ruler by pressing the clamping block and the adjusting seat, which can replace the operation of clamping the grating ruler by wrapping tape. Its operation is simpler, more efficient, has a higher yield, and is more economical.

[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the arc grating ruler mounting and clamping device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the pressing device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the installation device provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the snap-fit ​​assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the grating ruler at the starting position provided in an embodiment of the present invention; Figure 6 A schematic diagram of the grating ruler at the termination position provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the rotating device provided in an embodiment of the present invention; Figure 8 for Figure 7 A cross-sectional view of the rotating device shown.

[0020] Icons: 10-Mounting device; 11-Mounting base; 12-Guide structure; 13-Separation structure; 14-Snap-fit ​​assembly; 141-Fixing block; 142-Adjusting block; 143-Adjusting bolt; 16-Protective shell; 20-Pressure device; 21-Fixing seat; 211-Fixing arc; 212-Fixing protrusion; 213-Positioning snap-fit ​​groove; 22-Adjusting seat; 221-Adjusting arc; 222-Adjusting protrusion; 223-Adjusting groove; 224-Locking groove; 23-Pressure block; 24-Locking assembly; 241-Locking rod; 242-Spherical bearing; 25-Fasting screw; 30-Rotating device; 31-Rotating shaft base; 32-Rotating shell; 33-Rotating shaft; 34-Bearing; 35-Bearing upper cover; 36-Bearing lower cover; 40-Raster ruler; 41-Backing paper. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] This embodiment provides a circular arc grating ruler mounting and clamping device; please refer to... Figures 1-8 , Figure 1 This is a schematic diagram of the arc-shaped grating ruler mounting and clamping device provided in this embodiment. Figure 5 This is a schematic diagram of the grating ruler at its starting position. Figure 6 This is a schematic diagram of the grating ruler at the termination position; where, Figure 2 This is a schematic diagram of the clamping device. Figure 3 This is a schematic diagram of the installation device. Figure 4 This is a schematic diagram of the snap-fit ​​assembly. Figure 7 This is a schematic diagram of the rotating device. Figure 8 for Figure 7 A cross-sectional view of the rotating device shown.

[0029] See Figures 1-8 As shown, the arc grating ruler mounting and clamping device provided in this embodiment is used to mount the grating ruler 40 on the reserved position on the rotating shaft base 31 of the rotating device 30.

[0030] The circular arc grating ruler mounting and clamping device includes a mounting device 10 and a clamping device 20.

[0031] The mounting device 10 includes a mounting base 11, a snap-fit ​​assembly 14, and a protective shell 16; the mounting base 11 is used to support the connecting grating ruler 40 and there is at least one; optionally, there are multiple mounting bases 11.

[0032] The protective shell 16 is used to house the grating ruler 40; by housing the grating ruler 40 with the protective shell 16, deformation and twisting of the grating ruler 40 can be effectively prevented during installation.

[0033] One of the mounting bases 11 is connected to a snap-fit ​​assembly 14; the snap-fit ​​assembly 14 is used to snap the protective shell 16 and to make the height of the grating ruler 40 inside the protective shell 16 the same as the height of the reserved ruler position, so as to fix the grating ruler 40 on the reserved ruler position of the rotating shaft base 31.

[0034] The clamping device 20 includes a fixed base 21, an adjusting base 22, a clamping block 23, and a locking assembly 24. The fixed base 21 is fixedly connected to the rotating shaft base 31, the adjusting base 22 is rotatably connected to the fixed base 21, and the locking assembly 24 connects the fixed base 21 and the adjusting base 22 to lock the adjusting base 22 onto the fixed base 21. The clamping block 23 is fixedly connected to the fixed base 21 and is used to clamp the head end of the grating ruler 40 connected to the reserved size position in the rotating shaft base 31. The adjusting base 22 is used to clamp the tail end of the grating ruler 40 connected to the reserved size position in the rotating shaft base 31. In the prior art, after the grating ruler is glued together, tape (such as polyester fixing tape) is usually wrapped around the surface of the grating ruler to press it firmly, and wait for the grating ruler to be firmly bonded. The pressing device 20 of this embodiment presses the first and second ends of the grating ruler 40 by pressing the pressing block 23 and the adjusting seat 22, which can replace the operation of pressing the grating ruler 40 by wrapping tape. Its operation is simpler and more efficient.

[0035] The arc-shaped grating ruler mounting and clamping device described in this embodiment includes a mounting device 10 and a clamping device 20. By placing the grating ruler 40 inside the protective shell 16, deformation and twisting of the grating ruler 40 during installation can be effectively prevented. Through the snap-fit ​​component 14, the height of the grating ruler 40 inside the protective shell 16 can be made the same as the reserved height of the ruler position on the rotating shaft base 31, which facilitates fixing the grating ruler 40 to the reserved position on the rotating shaft base 31. The fixing seat 21 is fixedly connected to the rotating shaft base 31, and the adjusting seat 22 is rotatably connected to the fixing seat 21, so that the clamping block 23 fixedly connected to the fixing seat 21 can press the head end of the grating ruler 40 to the reserved position on the rotating shaft base 31. Inside, rotate the rotating shaft base 31 to connect the grating ruler 40 to the reserved size position of the rotating shaft base 31, adjust the position of the adjusting seat 22 and press the tail end of the grating ruler 40 into the reserved size position of the rotating shaft base 31, then connect the locking assembly 24 to the fixing seat 21 and the adjusting seat 22 to lock the adjusting seat 22 onto the fixing seat 21, thereby fixing the head and tail ends of the grating ruler 40 into the reserved size position of the rotating shaft base 31; that is, the arc grating ruler mounting and pressing device presses the head and tail ends of the grating ruler 40 through the pressing block 23 and the adjusting seat 22, which can replace the operation of pressing the grating ruler 40 by wrapping tape. Its operation is simpler, more efficient, has a higher yield and is more economical.

[0036] To ensure the measurement accuracy of the grating ruler, during the bonding process, the grating ruler must extend straight out and be tangent to the rotating shaft base 31 of the rotating device 30. For grating rulers with backing paper, the backing paper 41 can also be peeled off to ensure bonding and measurement accuracy, resulting in a high yield and good bonding consistency. The arc-shaped grating ruler mounting and clamping device described in this embodiment can ensure the bonding accuracy and measurement accuracy of the grating ruler.

[0037] In some embodiments, such as Figure 7 and Figure 8 As shown, the rotating device 30 includes a shaft base 31, a rotating housing 32, a rotating shaft 33, and a bearing 34; the bearing 34 is, for example, a crossed roller bearing or other bearing. Optionally, the rotating device 30 also includes a bearing upper cover 35 and a bearing lower cover 36; the bearing 34 is mounted on the rotating shaft 33, with the inner ring of the bearing 34 tightly fitted to the boss of the rotating shaft 33; the bearing lower cover 36 is mounted on the rotating shaft 33 to fix the inner ring of the bearing 34; the assembled rotating shaft 33 is installed into the rotating housing 32, with the outer ring of the bearing 34 tightly fitted to the boss of the rotating housing 32; the bearing upper cover 35 is mounted on the rotating housing 32, fixing the outer ring of the bearing 34; at this point, the rotating shaft 33 should rotate freely without any jamming; then, the shaft base 31 is mounted on the rotating shaft 33.

[0038] See Figure 1 and Figure 2 As shown, in an optional embodiment, the fixing base 21 includes a fixing arc portion 211 and a fixing protrusion 212. The fixing arc portion 211 is fixedly connected to the rotating shaft base 31, for example, by screws. The fixing protrusion 212 is fixedly connected to the fixing arc portion 211, for example, by integral molding or by welding, or by other methods. A fixing through groove for accommodating the grating ruler 40 is provided between the fixing protrusion 212 and the rotating shaft base 31. The fixing through groove extends along the circumferential direction of the fixing arc portion 211 and is open at both ends. In this embodiment, the fixing through groove can be provided on the rotating shaft base 31, or on the fixing protrusion 212, or part of the fixing through groove can be provided on the rotating shaft base 31 and the other part on the fixing protrusion 212.

[0039] See Figure 1 and Figure 2As shown, in an optional embodiment, the adjustment seat 22 includes an adjustment arc portion 221 and an adjustment protrusion 222. The adjustment arc portion 221 is rotatably connected to the fixed arc portion 211, and the adjustment protrusion 222 is fixedly connected to the adjustment arc portion 221. The adjustment protrusion 222 and the rotating shaft base 31 have an adjustment slot for accommodating the grating ruler 40. The adjustment slot extends along the circumferential direction of the adjustment arc portion 221 and is open at both ends. The adjustment protrusion 222 is used to press and connect the grating ruler 40. For example, the adjustment protrusion 222 presses against the tail end of the grating ruler 40. In this embodiment, the adjustment slot can be provided on the rotating shaft base 31, or the adjustment slot can be provided on the adjustment protrusion 222, or a portion of the adjustment slot can be provided on the rotating shaft base 31 and another portion on the adjustment protrusion 222.

[0040] Optionally, the clamping block 23 is fixedly connected to the fixed protrusion 212, and a clamping block through groove for accommodating the grating ruler 40 is provided between the clamping block 23 and the rotating shaft base 31. The clamping block through groove extends along the circumferential direction of the fixed arc portion 211 and is open at both ends. In this embodiment, the clamping block through groove can be provided on the rotating shaft base 31, or the clamping block through groove can be provided on the clamping block 23, or a portion of the clamping block through groove can be provided on the rotating shaft base 31 and another portion can be provided on the clamping block 23.

[0041] See Figure 2 As shown, in the optional embodiment, the arc grating ruler mounting and clamping device further includes a fastening screw 25; the adjusting arc portion 221 has an adjusting groove 223; the adjusting groove 223 is arc-shaped and extends along the circumferential direction of the adjusting arc portion 221; the fastening screw 25 passes through the adjusting groove 223 and is fixedly connected to the fixed arc portion 211; when the adjusting seat 22 rotates along the fixed seat 21, that is, when the adjusting arc portion 221 rotates along the fixed arc portion 211, the fastening screw 25 is in different positions of the adjusting groove 223.

[0042] Optionally, the number of fastening screws 25 is not less than two. Using at least two fastening screws 25 makes the adjustment seat 22 rotate more smoothly along the fixed seat 21.

[0043] See Figure 2As shown, in an optional embodiment, the adjusting protrusion 222 has a locking groove 224; the locking groove 224 opens upwards; the locking assembly 24 includes a locking rod 241 and a spherical bearing 242; one end of the spherical bearing 242 is fixed to the top of the fixed protrusion 212, and the other end of the spherical bearing 242 is connected to the locking rod 241; the locking rod 241 can rotate around the spherical bearing 242 so that part of the locking rod 241 is engaged in the locking groove 224, thereby locking the adjusting seat 22 onto the fixed seat 21. In this embodiment, the spherical bearing 242 includes an outer ring and an inner ring, the outer ring having an inner spherical surface and the inner ring having an outer spherical surface; the outer ring is fixed to the rotating shaft base 31, and the inner ring is connected to the locking rod 241, or the inner ring is fixed to the rotating shaft base 31, and the outer ring is connected to the locking rod 241.

[0044] In this embodiment, the arc grating ruler mounting and clamping device can install the fixed seat 21 on the rotating shaft base 31 and the adjusting seat 22 on the fixed seat 21. The adjusting seat 22 and the fixed seat 21 can rotate relative to each other. At this time, the fastening screw 25 can be left untightened. The position of the adjusting seat 22 needs to be adjusted later. The spherical bearing 242 is installed on the fixed protrusion 212 of the fixed seat 21. The locking rod 241 can be placed freely without being inserted into the locking groove 224. After the position of the adjusting seat 22 is adjusted, the locking rod 241 is then inserted into the locking groove 224 for locking and positioning.

[0045] In this embodiment, the length of the locking rod 241 can be fixed or adjustable. For example, see... Figure 2 As shown, the locking rod 241 includes a first rod portion, a second rod portion, and a connecting nut arranged coaxially; the connecting nut connects the ends of the first rod portion and the second rod portion; the connecting nut is rotatable to adjust the distance between the ends of the first rod portion and the second rod portion; the end of the first rod portion away from the connecting nut extends out of the locking groove 224, and the end of the second rod portion away from the connecting nut is fixedly connected to the spherical bearing 242.

[0046] See Figure 2 As shown, in an optional embodiment, the fixing base 21 includes a positioning slot 213; the positioning slot 213 is disposed on the fixing arc portion 211, extends along the circumferential direction of the fixing arc portion 211 and is open at both ends, and has an opening on the outer peripheral wall of the fixing arc portion 211; the positioning slot 213 is used to engage the rotating shaft base 31. The positioning slot 213 facilitates the quick engagement of the fixing base 21 onto the rotating shaft base 31, thereby facilitating the quick installation of the arc grating ruler mounting and clamping device onto the rotating device 30.

[0047] See Figures 1-6As shown, in the optional embodiment, the snap-fit ​​component 14 is used to make the output grating ruler 40 tangent to the rotating shaft base 31; that is, the grating ruler 40 output by the snap-fit ​​component 14 is at the same height and tangent to the reserved ruler position on the rotating shaft base 31, so as to quickly and accurately attach the grating ruler 40 to the rotating device 30.

[0048] Optionally, such as Figure 4 As shown, the snap-fit ​​assembly 14 includes a fixing block 141, an adjusting block 142, and an adjusting bolt 143. The fixing block 141 is fixedly connected to the top of the mounting base 11, and the adjusting block 142 is located on the top of the mounting base 11. The adjusting bolt 143 is rotatably connected to the fixing block 141, and one end of the adjusting bolt 143 passes through the fixing block 141 and is screwed to the adjusting block 142. The fixing block 141, the adjusting block 142, the adjusting bolt 143, and the top of the mounting base 11 form a cavity for accommodating the protective shell 16. The adjusting bolt 143 is used to rotate to change the distance between the adjusting block 142 and the fixing block 141 to clamp the protective shell 16. By adjusting the bolt 143, the distance between the adjusting block 142 and the fixing block 141 is changed to clamp the protective shell 16, ensuring that the grating ruler 40 output by the snap-fit ​​assembly 14 is tangent to and at the same height as the rotating shaft base 31.

[0049] Optionally, there may be at least two adjusting bolts 143 to make the movement of adjusting block 142 more stable.

[0050] The arc-shaped grating ruler mounting and clamping device described in this embodiment can also use a grating ruler 40 with adhesive backing, that is, a backing paper 41 is attached to the back of the grating ruler 40, and the backing paper 41 can be separated from the grating ruler 40 through a separation structure. For example, as Figure 3 , Figure 5 and Figure 6 As shown, the mounting device 10 also includes a separation structure 13 for separating the grating ruler 40 and the backing paper 41, the separation structure 13 being connected to the top of the mounting base 11.

[0051] Optionally, the mounting device 10 also includes a guide structure 12 for guiding the protective housing 16; the guide structure 12 is connected to the top of the mounting base 11; by guiding the protective housing 16 through the guide structure 12, the deformation and twisting of the grating ruler 40 during the installation process can be effectively reduced.

[0052] Optionally, along the extending direction of the protective shell 16, the guide structure 12 and the separation structure 13 are located on both sides of the snap-fit ​​assembly 14, and the separation structure 13 is located between the snap-fit ​​assembly 14 and the clamping device 20. By positioning the separation structure 13 between the snap-fit ​​assembly 14 and the clamping device 20, the grating ruler 40, after being separated by the separation structure 13, can be quickly pasted onto the reserved position on the rotating shaft base 31 of the rotating device 30, reducing the probability of dust and other objects falling onto the adhesive backing of the grating ruler 40.

[0053] See Figure 1 and Figure 3 As shown, in an optional embodiment, the guide structure 12 includes a pair of guide posts. The protective shell 16 passes through the gap between the two guide posts, and the two guide posts are arranged sequentially along the extension direction of the protective shell 16. Guiding the protective shell 16 with the paired guide posts results in a simple structure and excellent clamping and guiding effect. The sequential arrangement of the two guide posts along the extension direction of the protective shell 16 provides continuous and gentle guiding constraint, ensuring guiding accuracy while effectively improving the stability and service life of the protective shell 16.

[0054] Alternatively, the guide post can be a pin, screw, or other object.

[0055] See Figure 1 and Figure 3 As shown, in an optional embodiment, the separation structure 13 includes a pair of separation columns; the protective shell 16 passes through the gap between the two separation columns; the protective shell 16 is provided with an output port for the backing paper 41 to be output, and the output port is located on the side of the separation column away from the pressing device 20. Through the pair of separation columns and the output port of the protective shell 16, the grating ruler 40 and the backing paper 41 are effectively separated with a relatively simple structure.

[0056] Alternatively, the separating element may be a pin, screw, or other object.

[0057] This embodiment provides a circular arc grating ruler mounting and clamping device. After the separating column separates the grating ruler 40 from the backing paper 41, one end of the grating ruler 40 is glued to the starting position of the reserved ruler position on the rotating shaft base 31, such as... Figure 5 As shown; the clamping block 23 is installed on the fixed base 21, and the clamping block 23 presses the first end of the grating ruler 40 in the initial position. The rotating shaft 33 of the rotating device 30 is slowly rotated to smoothly adhere the grating ruler 40 to the rotating shaft base 31. The position of the fixed base 21 is adjusted so that it presses the tail end of the grating ruler 40. The locking assembly 24 is used to lock the adjusting seat 22 on the fixed base 21, so that the grating ruler 40 is pasted on the reserved size position of the rotating device 30.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A circular arc grating ruler mounting and clamping device for mounting the grating ruler (40) on a reserved position on the rotating shaft base (31) of a rotating device (30), characterized in that, Includes an installation device (10) and a clamping device (20); The mounting device (10) includes a mounting base (11), a snap-fit ​​assembly (14), and a protective shell (16); the mounting base (11) is used to support and connect the grating ruler (40), and there is at least one such base; the protective shell (16) is used to accommodate the grating ruler (40); one of the mounting bases (11) is connected to the snap-fit ​​assembly (14); the snap-fit ​​assembly (14) is used to snap the protective shell (16) and to ensure that the height of the grating ruler (40) inside the protective shell (16) is the same as the height of the reserved ruler position; The clamping device (20) includes a fixed seat (21), an adjusting seat (22), a clamping block (23), and a locking assembly (24); the fixed seat (21) is fixedly connected to the rotating shaft base (31), the adjusting seat (22) is rotatably connected to the fixed seat (21), and the locking assembly (24) connects the fixed seat (21) and the adjusting seat (22) to lock the adjusting seat (22) to the fixed seat (21); the clamping block (23) is fixedly connected to the fixed seat (21), and the clamping block (23) is used to clamp the head end of the grating ruler (40) connected in the reserved size position; the adjusting seat (22) is used to clamp the tail end of the grating ruler (40) connected in the reserved size position.

2. The arc-shaped grating ruler mounting and clamping device according to claim 1, characterized in that, The fixing base (21) includes a fixing arc portion (211) and a fixing protrusion portion (212); the fixing arc portion (211) is used to be fixedly connected to the rotating shaft base (31), the fixing protrusion portion (212) is fixedly connected to the fixing arc portion (211), and there is a fixing part through groove between the fixing protrusion portion (212) and the rotating shaft base (31) to accommodate the grating ruler (40), the fixing part through groove extends along the circumferential direction of the fixing arc portion (211) and is open at both ends; The adjustment seat (22) includes an adjustment arc (221) and an adjustment protrusion (222); the adjustment arc (221) is rotatably connected to the fixed arc (211), the adjustment protrusion (222) is fixedly connected to the adjustment arc (221), and there is an adjustment slot between the adjustment protrusion (222) and the rotating shaft base (31) to accommodate the grating ruler (40). The adjustment slot extends along the circumferential direction of the adjustment arc (221) and is open at both ends. The adjustment protrusion (222) is used to press and connect the grating ruler (40). The clamping block (23) is fixedly connected to the fixed protrusion (212), and there is a clamping block through groove between the clamping block (23) and the rotating shaft base (31) to accommodate the grating ruler (40). The clamping block through groove extends along the circumferential direction of the fixed arc (211) and is open at both ends.

3. The arc-shaped grating ruler mounting and clamping device according to claim 2, characterized in that, It also includes a fastening screw (25); the adjusting arc (221) has an adjusting groove (223); the adjusting groove (223) is arc-shaped and extends along the circumferential direction of the adjusting arc (221); the fastening screw (25) passes through the adjusting groove (223) and is fixedly connected to the fixing arc (211); when the adjusting arc (221) rotates along the fixing arc (211), the fastening screw (25) is at different positions in the adjusting groove (223); The number of the fastening screws (25) is not less than two.

4. The arc-shaped grating ruler mounting and clamping device according to claim 2, characterized in that, The adjusting protrusion (222) has a locking groove (224); the locking groove (224) opens upwards; The locking assembly (24) includes a locking rod (241) and a spherical bearing (242); one end of the spherical bearing (242) is fixed to the top of the fixed protrusion (212), and the other end is connected to the locking rod (241); the locking rod (241) can rotate around the spherical bearing (242) so that part of the locking rod (241) is engaged in the locking groove (224).

5. The arc-shaped grating ruler mounting and clamping device according to claim 4, characterized in that, The locking rod (241) includes a first rod portion, a second rod portion, and a connecting nut arranged coaxially; the connecting nut connects the end of the first rod portion and the end of the second rod portion; the connecting nut is rotatable to adjust the distance between the end of the first rod portion and the end of the second rod portion; The end of the first rod portion facing away from the connecting nut extends out of the locking groove (224), and the end of the second rod portion facing away from the connecting nut is fixedly connected to the spherical bearing (242).

6. The arc-shaped grating ruler mounting and clamping device according to claim 2, characterized in that, The fixed base (21) includes a positioning slot (213); the positioning slot (213) is disposed on the fixed arc portion (211), the positioning slot (213) extends along the circumferential direction of the fixed arc portion (211) and is open at both ends, the positioning slot (213) is open on the outer peripheral wall of the fixed arc portion (211); the positioning slot (213) is used to engage the rotating shaft base (31).

7. The arc-shaped grating ruler mounting and clamping device according to claim 1, characterized in that, The snap-fit ​​assembly (14) is used to make the output grating ruler (40) tangent to the rotating shaft base (31); The snap-fit ​​assembly (14) includes a fixing block (141), an adjusting block (142), and an adjusting bolt (143); the fixing block (141) is fixedly connected to the top of the mounting base (11), and the adjusting block (142) is located at the top of the mounting base (11); the adjusting bolt (143) is rotatably connected to the fixing block (141), and one end of the adjusting bolt (143) passes through the fixing block (141) and is screwed to the adjusting block (142); the fixing block (141), the adjusting block (142), the adjusting bolt (143), and the top of the mounting base (11) form a cavity to accommodate the protective shell (16); The adjusting bolt (143) is used to rotate to change the distance between the adjusting block (142) and the fixed block (141) to clamp the protective shell (16). The number of adjusting bolts (143) shall not be less than two.

8. The arc-shaped grating ruler mounting and clamping device according to claim 1, characterized in that, The mounting device (10) further includes a separation structure (13) for separating the grating ruler (40) and the backing paper (41), the separation structure (13) being connected to the top of the mounting base (11).

9. The arc-shaped grating ruler mounting and clamping device according to claim 8, characterized in that, The mounting device (10) further includes a guide structure (12) for guiding the protective shell (16); the guide structure (12) is connected to the top of the mounting base (11); Along the extension direction of the protective shell (16), the guide structure (12) and the separation structure (13) are located on both sides of the snap-fit ​​assembly (14), and the separation structure (13) is located between the snap-fit ​​assembly (14) and the clamping device (20).

10. The arc-shaped grating ruler mounting and clamping device according to claim 9, characterized in that, The guide structure (12) includes a pair of guide posts; in the pair of guide posts, the protective shell (16) passes through the gap between the two guide posts, and the two guide posts are arranged sequentially along the extension direction of the protective shell (16). The separation structure (13) includes a pair of separation columns; in the pair of separation columns, the protective shell (16) passes through the gap between the two separation columns; the protective shell (16) is provided with an output port for the back paper (41) to be output, and the output port is located on the side of the separation column away from the pressing device (20).

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