Guide mechanism and position detection system for mounting an encoder strip

Abstract

The utility model discloses a kind of guide rail mechanism and position detection system for installing coding band, the guide rail mechanism includes guide rail body and adhesive tape, guide rail body extends along first direction, fixed mounting cavity is opened on guide rail body, fixed mounting cavity extends along first direction, and locking surface for clamping limiting adhesive tape is formed on the cavity wall of fixed mounting cavity, coding band is set in fixed mounting cavity, adhesive tape can be loaded into fixed mounting cavity, and be limited in fixed mounting cavity by locking surface, to make adhesive tape elastically abut between coding band and the cavity wall of fixed mounting cavity, to coding band is fixed on guide rail body, therefore, coding band is laid on guide rail mechanism in any position, adhesive tape can be stably fixed on guide rail body and fixed to coding band, to increase the stability of coding band after installation, to ensure the reading accuracy of reading head device.

Description

Technical Field

[0001] This utility model relates to the field of position detection technology, and in particular to a guide rail mechanism and position detection system for installing coded tape. Background Technology

[0002] In many fields such as modern industrial automation, logistics warehousing, and precision instrument manufacturing, accurate position detection and ranging technology is crucial, serving as a key link to ensure the efficient and accurate operation of equipment. Position detection devices can provide real-time feedback on the position information of target objects, providing a basis for system control and adjustment, thereby ensuring the precise connection and coordinated operation of various processes.

[0003] Encoded tapes, as an important position detection element, are widely used in various scenarios requiring position detection and ranging due to their advantages such as simple structure, high reliability, and relatively low cost. Encoded tapes are typically used in conjunction with reader devices. By reading specific encoded information on the coded tape, the reader device can accurately determine its position relative to the tape, thereby achieving position detection and ranging functions.

[0004] Typically, installers need to manually lay and position the coding tape along specific locations on the guide rail mechanism. However, the stability of the installed coding tape is insufficient, which in turn affects the reading accuracy of the reader. Utility Model Content

[0005] The purpose of this invention is to propose a guide rail mechanism and a position detection system for installing coding tape, aiming to solve the problem of insufficient stability of existing coding tapes after being laid on the guide rail mechanism.

[0006] In a first aspect, this utility model provides a guide rail mechanism for installing an coded tape. The guide rail mechanism includes a guide rail body and an adhesive strip. The guide rail body extends along a first direction and has a fixed mounting cavity. The fixed mounting cavity extends along the first direction, and a locking surface for engaging and limiting the adhesive strip is formed on the cavity wall of the fixed mounting cavity. The coded tape is disposed in the fixed mounting cavity. The adhesive strip extends along the first direction and can be inserted into the fixed mounting cavity. The adhesive strip is restricted within the fixed mounting cavity by the locking surface, so that the adhesive strip elastically abuts against the coded tape and the cavity wall of the fixed mounting cavity, thereby fixing the coded tape to the guide rail body.

[0007] In one embodiment, a guide surface is also formed on the cavity wall of the fixed mounting cavity. The distance between the guide surface and the coding strip gradually decreases from the opening of the fixed mounting cavity to the inside of the fixed mounting cavity, and is used to guide the adhesive strip into the fixed mounting cavity.

[0008] In one embodiment, the fixed mounting cavity includes the opening, a bottom end for positioning the coding tape, and a straight surface and a bent surface extending from the bottom end to the opening;

[0009] The coding strip is affixed to the flat surface, and both the locking surface and the guiding surface are disposed on the bent surface. The locking surface is located between the guiding surface and the bottom end.

[0010] In one embodiment, the guide rail body is further provided with a guide support cavity, which extends along the first direction;

[0011] The guide rail mechanism further includes several support assemblies, which are respectively housed in the guide support cavity and used to support the guide rail body.

[0012] In one embodiment, the support assembly includes a support base and a guide connecting base. The guide connecting base is disposed on the support base and slidably disposed within the guide support cavity, and is capable of sliding relative to the guide rail body along the first direction.

[0013] In one embodiment, the guide support cavity includes a guide sliding cavity and a guide limiting cavity disposed adjacent to the guide sliding cavity, wherein both the guide sliding cavity and the guide limiting cavity extend along the first direction;

[0014] The guide connector includes a connecting body, a guide block and a connecting block disposed on the connecting body, and a rolling element disposed on the connecting block. The connecting block is disposed in the guide sliding cavity, and the rolling element can contact and roll with the cavity wall of the guide sliding cavity. The guide block is slidably disposed in the guide limiting cavity, and the guide limiting cavity is used to restrict the guide block from sliding along the first direction.

[0015] In one embodiment, the guide rail body includes a plurality of guide rail components, all of which extend along the first direction and are arranged end-to-end in sequence.

[0016] The guide rail mechanism also includes several connecting components, which are used to detachably connect two adjacent guide rail components to assemble the guide rail body.

[0017] In one embodiment, the guide rail body is further provided with a first connecting cavity and a second connecting cavity, both of which extend along the first direction;

[0018] The connecting assembly includes a first connecting strip, a second connecting strip, and a plurality of connecting members. The two ends of the first connecting strip are respectively housed in the first connecting cavities of two adjacent guide rail components. The plurality of connecting members pass through the first connecting strip and abut against the cavity wall of the first connecting cavity. The two ends of the second connecting strip are respectively housed in the second connecting cavities of two adjacent guide rail components. The plurality of connecting members pass through the second connecting strip and abut against the cavity wall of the second connecting cavity, so as to detachably connect the two adjacent guide rail components.

[0019] Secondly, this utility model also provides a position detection system, which includes an encoding strip, a reader device, and a guide rail mechanism for mounting the encoding strip according to any of the above embodiments;

[0020] The encoding strip is disposed on the guide rail mechanism, and the reading head device is slidably disposed on the guide rail mechanism and is used to read the position information of the encoding strip.

[0021] In one embodiment, the position detection system further includes a traction mechanism disposed at the end of the coded tape and used to traction and compensate for the length of the coded tape; and / or,

[0022] The reading head device includes a reading head body, a guiding mechanism, and a cleaning mechanism. The guiding mechanism is disposed on the reading head body and is slidably disposed on the guide rail mechanism. The guide rail body is also provided with a guiding sliding groove, which is used to cooperate with the guiding mechanism to support the reading head device to slide on the guide rail mechanism.

[0023] The present invention has the following beneficial effects:

[0024] The guide rail mechanism for installing the coded tape of this utility model has the coded tape disposed in the fixed mounting cavity. The adhesive strip extends along a first direction and can be inserted into the fixed mounting cavity. The adhesive strip is restricted within the fixed mounting cavity by a locking surface, so that the adhesive strip elastically abuts against the cavity wall of the fixed mounting cavity to fix the coded tape to the guide rail body. Therefore, at any position where the coded tape is laid on the guide rail mechanism, the adhesive strip can firmly abut against the guide rail body to fix the coded tape, thereby increasing the stability of the coded tape after installation and ensuring the reading accuracy of the reading head device.

[0025] When the aforementioned guide rail mechanism is applied to a position detection system, the adhesive strips can firmly abut against the guide rail body to fix the coding tape, thereby increasing the stability of the coding tape after installation, thus ensuring the reading accuracy of the reading head device, and thus increasing the position checking accuracy and reliability of the position detection system. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] in:

[0028] Figure 1 This is a schematic diagram of a position detection system in one embodiment.

[0029] Figure 2 for Figure 1 Partial schematic diagram of the position detection system shown Figure 1 .

[0030] Figure 3 for Figure 1 Partial schematic diagram of the position detection system shown Figure 2 .

[0031] Figure 4 for Figure 1 The diagram shows a guide rail component in the position detection system.

[0032] Figure 5 for Figure 4 Enlarged schematic diagram of section A in the middle.

[0033] Figure 6 for Figure 1 The diagram shows a support assembly in the position detection system.

[0034] Figure 7 for Figure 1 The diagram shows the read head body, guide mechanism, and cleaning mechanism in the position detection system.

[0035] Figure 8 for Figure 7 The exploded view shows the read head body, guiding mechanism, and cleaning mechanism.

[0036] Figure 9 for Figure 8 The exploded view of the cleaning facility shown.

[0037] Figure 10 for Figure 8 A schematic diagram of the guide mechanism shown.

[0038] Figure 11 for Figure 10 Exploded view of the guide mechanism shown.

[0039] Figure 12 for Figure 1 The diagram shows a schematic of the traction mechanism in the position detection system.

[0040] Figure 13 for Figure 12 The exploded view of the traction mechanism shown.

[0041] Attached image number: 10, Encoding strip;

[0042] 100. Guide rail mechanism; 110. Guide rail body; 111. Fixed mounting cavity; 1111. Locking surface; 1112. Guide surface; 1113. Opening; 1114. Bottom end; 1115. Flat surface; 1116. Bending surface; 112. Guide support cavity; 1121. Guide sliding cavity; 1122. Guide limiting cavity; 113. Guide rail component; 114. First connecting cavity; 115. Second connecting cavity; 116. Heating cavity 120. Adhesive strip; 130. Support assembly; 131. Support base; 132. Guide connecting seat; 1321. Connecting body; 1322. Guide block; 1323. Connecting block; 1324. Rolling element; 140. Guide sliding groove; 141. Top wall; 142. Bottom wall; 143. Side wall; 150. Heating assembly; 160. Connecting assembly; 161. First connecting strip; 162. Second connecting strip; 163. Connector;

[0043] 200. Traction mechanism; 210. Fixing seat; 220. Traction rod; 230. Compensation component; 231. Elastic element; 232. Adjusting component; 240. Traction head assembly; 241. Traction head body; 2411. Assembly slot; 242. Track mounting component; 243. Mounting hole; 250. Fixing component;

[0044] 300, Reader head body; 400, Guide mechanism; 410, First side wheel module; 420, Second side wheel module; 401, Sliding frame; 402, First pulley; 403, Second pulley; 500, Cleaning mechanism; 510, Mounting frame; 520, Dust removal brush assembly; 521, First brush body; 522, Second brush body. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0047] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0048] Encoded tape is a thin steel strip with perforations, which allow optical signals to propagate. It is typically used in conjunction with a reader for long-distance automatic position detection. The coded tape is fixedly installed at the location where the measurement distance needs to be determined, i.e., laid along the entire measurement path. The reader slides on the coded tape; different positions of the reader result in different signal codes received. These different signal codes can be decoded into different absolute positions, thus achieving position detection. Therefore, the installation accuracy of the coded tape directly affects the accuracy of signal propagation and determines the accuracy of position detection in the position checking system.

[0049] Please see Figures 1 to 13 This utility model discloses a guide rail mechanism 100 for mounting coded tape. One embodiment of the guide rail mechanism 100 includes a guide rail body 110 and an adhesive strip 120. The guide rail body 110 extends along a first direction and has a fixed mounting cavity 111. The fixed mounting cavity 111 extends along the first direction, and a locking surface 1111 for engaging and limiting the adhesive strip 120 is formed on the cavity wall of the fixed mounting cavity 111. The coded tape 10 is disposed within the fixed mounting cavity 111, and the adhesive strip 120 extends along the first direction and can be inserted into the fixed mounting cavity 111. The 20 is restricted within the fixed mounting cavity 111 by the locking surface 1111, so that the adhesive strip 120 elastically abuts against the cavity wall of the fixed mounting cavity 111, thereby fixing the coded tape 10 onto the guide rail body 110. Therefore, at any position where the coded tape 10 is laid on the guide rail mechanism 100, the adhesive strip 120 can firmly abut against the guide rail body 110 and fix it, thereby increasing the stability of the coded tape 10 after installation and ensuring the reading accuracy of the reading head device.

[0050] In one embodiment, please refer to Figures 1 to 6 A guide surface 1112 is also formed on the cavity wall of the fixed mounting cavity 111. The distance between the guide surface 1112 and the coding strip 10 gradually decreases from the opening 1113 of the fixed mounting cavity 111 to the inside of the fixed mounting cavity 111, and is used to guide the rubber strip 120 into the fixed mounting cavity 111.

[0051] Understandably, the guide surface 1112 is shaped like an inclined plane or an arc, gradually approaching the coding tape 10. Its inclination or curvature can be rationally designed according to the material, size, and ease of installation requirements of the adhesive strip 120. When installing the adhesive strip 120, it enters through the opening 1113 of the fixed mounting cavity 111. As the depth of entry increases, the guide surface 1112 gradually applies an inward guiding force to the adhesive strip 120, allowing it to be smoothly and accurately inserted into the fixed mounting cavity 111.

[0052] Therefore, by setting the guide surface 1112, the difficulty of installing the adhesive strip 120 can be greatly reduced, the installation efficiency can be improved, and the situation of damage to the adhesive strip 120 or improper installation due to improper installation can be reduced. This ensures the tight fit between the adhesive strip 120 and the fixed mounting cavity 111, thereby improving the stability and reliability of the coding tape 10 installed on the guide rail mechanism 100.

[0053] In one embodiment, please refer to Figures 1 to 6 The fixed mounting cavity 111 includes an opening 1113, a bottom end 1114 for positioning the coding tape 10, and a straight surface 1115 and a bent surface 1116 extending from the bottom end 1114 to the opening 1113; wherein, the coding tape 10 is attached to the straight surface 1115, the locking surface 1111 and the guiding surface 1112 are both disposed on the bent surface 1116, and the locking surface 1111 is located between the guiding surface 1112 and the bottom end 1114.

[0054] Understandably, the flat surface 1115 is a smooth plane, the size of which is adapted to the width of the coding tape 10 to ensure that the coding tape 10 can be flatly attached to it. The bent surface 1116 has a certain bending angle, and the guide surface 1112 and the locking surface 1111 are reasonably distributed on the bent surface 1116. The guide surface 1112 is responsible for guiding the adhesive strip 120 into place, and the locking surface 1111 locks the coding tape 10 into the fixed mounting cavity 111 by cooperating with the adhesive strip 120 and the flat surface 1115.

[0055] Therefore, this structural design allows the coding tape 10 to be stably installed in the fixed mounting cavity 111. The flat surface 1115 ensures the flatness of the coding tape 10, which is beneficial to improving the stability and reliability of the installation of the coding tape 10. The guide surface 1112 and the locking surface 1111 on the bent surface 1116 cooperate with each other to realize the smooth installation of the adhesive strip 120 and the reliable locking of the coding tape 10.

[0056] Specifically, the locking surface 1111 may be provided with a certain protrusion or recess structure to enhance the locking effect, and the bottom end 1114 is V-shaped to facilitate the positioning of the coding band 10.

[0057] In one embodiment, please refer to Figures 1 to 6 The guide rail body 110 is also provided with a guide support cavity 112, which extends along the first direction; the guide rail mechanism 100 also includes a number of support assemblies 130, which are respectively housed in the guide support cavity 112 and are used to support the guide rail body 110.

[0058] Understandably, the shape of the guide support cavity 112 can be designed according to the structure of the support assembly 130, and is generally elongated with a smooth inner wall to reduce the friction of the support assembly 130 during sliding. Several support assemblies 130 are evenly distributed at different positions on the guide rail body 110, and the size and shape of each support assembly 130 match the guide support cavity 112, so that it can be stably accommodated in the guide support cavity 112.

[0059] Therefore, the guide support cavity 112 provides space for the installation and sliding of the support assembly 130. The support assembly 130 effectively supports the guide rail body 110, ensuring the stability and straightness of the guide rail body 110. At the same time, the support assembly 130 can slide in the first direction within the guide support cavity 112, allowing the guide rail mechanism 100 to adjust the position of the support assembly 130 according to actual needs, thus improving the flexibility and adaptability of the guide rail mechanism 100.

[0060] In one embodiment, please refer to Figures 1 to 6 The support assembly 130 includes a support base 131 and a guide connecting base 132. The guide connecting base 132 is disposed on the support base 131 and is slidably disposed in the guide support cavity 112, and can slide relative to the guide rail body 110 in a first direction.

[0061] Understandably, the support base 131 is a structure with a certain strength and rigidity, used to bear the weight of the guide rail body 110 and external loads. The guide connecting seat 132 is fixed to the support base 131 by welding, bolting or other means. Its shape is adapted to the guide support cavity 112 and its surface is smooth to ensure smooth sliding.

[0062] Therefore, the structural design of this support assembly 130 enables the support base 131 and the guide connecting seat 132 to work together. The support base 131 provides stable support force, and the guide connecting seat 132 achieves a sliding connection with the guide rail body 110. The sliding function of the guide connecting seat 132 within the guide support cavity 112 allows the support assembly 130 to be adjusted in position as needed, thereby facilitating the installation, debugging, and maintenance of the guide rail body 110 and improving the ease of use and reliability of the guide rail mechanism 100.

[0063] Specifically, by installing several support seats 131 on different mounting planes, the guide rail mechanism 100 can be installed horizontally, vertically, or suspended.

[0064] Furthermore, in this embodiment, the guide support cavity 112 includes a guide sliding cavity 1121 and a guide limiting cavity 1122 disposed adjacent to the guide sliding cavity 1121. Both the guide sliding cavity 1121 and the guide limiting cavity 1122 extend along the first direction. The guide connecting seat 132 includes a connecting body 1321, a guide block 1322 and a connecting block 1323 disposed on the connecting body 1321, and a rolling element 1324 disposed on the connecting block 1323. The connecting block 1323 is disposed in the guide sliding cavity 1121, and the rolling element 1324 can contact and roll with the cavity wall of the guide sliding cavity 1121. The guide block 1322 is slidably disposed in the guide limiting cavity 1122, and the guide limiting cavity 1122 is used to restrict the guide block 1322 from sliding along the first direction.

[0065] It is understood that the cross-sectional shapes of the guide sliding cavity 1121 and the guide limiting cavity 1122 can be designed according to actual needs. For example, the guide sliding cavity 1121 can be a rectangular cavity, and the guide limiting cavity 1122 can be a trapezoidal cavity, a semi-circular cavity, or other shapes with limiting functions. The connecting body 1321 is the main structure of the support assembly 130, and the guide block 1322 and the connecting block 1323 are respectively adapted to the guide limiting cavity 1122 and the guide sliding cavity 1121.

[0066] Furthermore, the rolling element 1324 can be a ball, roller, etc., and is mounted on the connecting block 1323 via a bearing or other structure, allowing it to roll smoothly on the cavity wall of the guide sliding cavity 1121. When the guide block 1322 slides within the guide limiting cavity 1122, the side wall 143 of the guide limiting cavity 1122 will restrict the guide block 1322, preventing it from deviating from the first direction.

[0067] Therefore, the coordinated design of the guide sliding cavity 1121 and the guide limiting cavity 1122, as well as the reasonable arrangement of the guide block 1322, the connecting block 1323, and the rolling element 1324 on the guide connecting seat 132, makes the sliding of the support assembly 130 within the guide support cavity 112 more stable and precise. The use of the rolling element 1324 greatly reduces sliding friction and improves the smoothness of sliding; the limiting effect of the guide limiting cavity 1122 on the guide block 1322 ensures that the support assembly 130 can only slide along the first direction, avoiding problems such as deformation of the guide rail body 110 or inaccurate installation caused by sliding deviation, and improving the operating accuracy and stability of the guide rail mechanism 100.

[0068] In one embodiment, please refer to Figures 1 to 6 The guide rail body 110 includes a plurality of guide rail components 113, which extend along a first direction and are arranged end to end in sequence. The guide rail mechanism 100 also includes a plurality of connecting components 160, which are used to detachably connect two adjacent guide rail components 113 to assemble the guide rail body 110.

[0069] Understandably, the length, shape, and material of several guide rail components 113 can be selected according to actual usage requirements, and their mating end faces are precision machined to ensure flatness and accuracy of the mating. The number of connecting components 160 matches the number of guide rail components 113, and the structure and dimensions of each connecting component 160 can meet the connection requirements of two adjacent guide rail components 113. The connecting components 160 can adopt various detachable connection methods such as bolt connection and snap-fit ​​connection.

[0070] Therefore, the guide rail body 110 is designed to be assembled from several guide rail components 113, and detachably connected via a connecting assembly 160, greatly improving the flexibility and scalability of the guide rail mechanism 100. In practical applications, an appropriate number of guide rail components 113 can be selected for assembly as needed, facilitating transportation, installation, and maintenance. Furthermore, when a guide rail component 113 is damaged, it can be replaced individually, reducing maintenance costs and difficulty, and extending the service life of the guide rail mechanism 100.

[0071] Specifically, the length of a single guide rail component 113 is between 2 and 3 meters. Therefore, the splicing of several guide rail components 113 will result in a relatively long extension length of the guide rail body 110. When the external ambient temperature changes significantly, the length of the guide rail body 110 will change. Since the guide connecting seat 132 is slidably disposed in the guide support cavity 112 and can slide relative to the guide rail body 110 along the first direction, it can adapt to the length change of the guide rail body 110. That is, the guide rail body 110 can move relative to the support assembly 130 and maintain the stable support effect of the support assembly 130, without affecting the stability and reliability of the support connection between the support assembly 130 and the guide rail body 110.

[0072] Furthermore, in this embodiment, the guide rail body 110 also has a first connecting cavity 114 and a second connecting cavity 115, both of which extend along a first direction; the connecting assembly 160 includes a first connecting strip 161, a second connecting strip 162, and a plurality of connecting members 163. The two ends of the first connecting strip 161 are respectively housed in the first connecting cavity 114 of two adjacent guide rail members 113, and the plurality of connecting members 163 penetrate the first connecting strip 161 and abut against the cavity wall of the first connecting cavity 114. The two ends of the second connecting strip 162 are respectively housed in the second connecting cavity 115 of two adjacent guide rail members 113, and the plurality of connecting members 163 penetrate the second connecting strip 162 and abut against the cavity wall of the second connecting cavity 115, so as to detachably connect the two adjacent guide rail members 113.

[0073] It is understood that the shapes and dimensions of the first connecting cavity 114 and the second connecting cavity 115 are adapted to the first connecting strip 161 and the second connecting strip 162, respectively. Their inner walls may be provided with positioning structures, such as positioning grooves or positioning protrusions, to ensure accurate installation of the connecting strips. The materials of the first connecting strip 161 and the second connecting strip 162 have a certain strength and toughness, capable of withstanding the tensile and shear forces between two adjacent guide rail components 113. The connecting component 163 can be a bolt, screw, etc., achieving a reliable connection through a tight fit with the connecting strip and the cavity wall.

[0074] Therefore, the structural design of this connecting component 160 makes the connection between two adjacent guide rail components 113 more robust and stable. The first connecting strip 161 and the second connecting strip 162 are respectively housed in the first connecting cavity 114 and the second connecting cavity 115, and abut against the cavity wall through the connecting member 163, increasing the contact area and friction of the connection part and improving the reliability of the connection. At the same time, the detachable connection method facilitates the installation, disassembly, and replacement of the guide rail component 113, improving the maintenance efficiency and convenience of the guide rail mechanism 100.

[0075] In one embodiment, when assembling the guide rail mechanism 100, the support components 130 are first arranged at intervals along the laying path of the guide rail mechanism 100, that is, several support components 130 are sequentially installed on the ground or wall. Then, the guide rail components 113 are installed on the support components 130. After that, the connecting components 160 are used to connect two adjacent guide rail components 113. Finally, the coding tape 10 is installed on the guide rail body 110.

[0076] In one embodiment, please refer to Figures 1 to 6The guide rail mechanism 100 also includes a heating component 150, and the guide rail body 110 is further provided with a heating cavity 116 extending along a first direction. The heating component 150 is housed within the heating cavity 116 and is used to heat the guide rail body 110. It is understood that since the heating component 150 is installed on the guide rail body 110 and used to heat it, the temperature of the guide rail body 110 increases after heating, which can be used for de-icing and snow melting in winter, eliminating the need for manual de-icing and snow melting, ensuring the normal operation of the guide rail mechanism. Furthermore, the heating component can also keep the temperature of the guide rail body within a suitable range in low-temperature environments, alleviating the problem of metal material shrinkage and deformation due to low temperatures, ensuring the installation accuracy of the coding tape 10, effectively solving the adverse effects of low-temperature environments on the position detection system, and ensuring the stable operation of the position detection system at low temperatures.

[0077] In one embodiment, the guide rail body 110 is further provided with a heating cavity 116 adjacent to the fixed mounting cavity 111. The heating cavity 116 extends along a first direction, and the heating component 150 is housed in the heating cavity 116.

[0078] Understandably, this arrangement ensures that the heating component 150 can effectively heat the fixed mounting cavity 111 and the coding strip 10 inside it, while avoiding direct thermal damage to the coding strip 10 due to excessive proximity. This adjacent arrangement of heating cavities 116 allows heat to be applied to the fixed mounting cavity 111 at intervals, greatly improving heat transfer efficiency.

[0079] In this embodiment, the heating component 150 is an electric heating band, which includes a heating resistance wire and an insulating layer covering the heating resistance wire. It is understood that the heating resistance wire can be made of a high-resistivity alloy material, possessing good heating performance and stability, and capable of generating sufficient heat at a relatively low voltage. The insulating layer is made of a high-temperature resistant material with excellent insulation properties, such as polyimide, and it tightly covers the heating resistance wire, effectively preventing current leakage and ensuring the safe use of the electric heating band.

[0080] Furthermore, the electric heating band also includes a protective sleeve covering the insulation layer. The protective sleeve can be made of high-strength, wear-resistant materials, such as rubber or silicone, and it tightly wraps around the insulation layer, providing additional protection for the electric heating band. The protective sleeve can resist external friction, impact, and chemical corrosion, preventing damage to the electric heating band during use and extending its service life.

[0081] Specifically, the electric heating belt also includes a shielding layer, which is placed between the insulation layer and the protective sleeve and is used to eliminate current interference; the shielding layer is a metal mesh made of metal wires.

[0082] Please see Figures 1 to 13 This utility model embodiment also discloses a position detection system, which includes an encoding strip 10, a reading head device, and a guide rail mechanism 100 of any of the above embodiments; the encoding strip 10 is disposed on the guide rail mechanism 100, the reading head device is slidably disposed on the guide rail mechanism 100, and is used to read the position information of the encoding strip 10.

[0083] Understandably, since the adhesive strips 120 can firmly abut against the coding tape 10 and fix it on the guide rail body 110, the stability of the coding tape 10 after installation is increased, thereby ensuring the reading accuracy of the reading head device, and thus increasing the position checking accuracy and reliability of the position detection system.

[0084] In one embodiment, please refer to Figure 12 and Figure 13 The position detection system also includes a traction mechanism 200, which is located at the end of the coded belt 10 and is used to compensate for the length of the coded belt 10. The traction mechanism 200 includes a fixed base 210, a traction rod 220, and a compensation component 230. The traction rod 220 passes through the fixed base 210, and one end of the traction rod 220 is used to connect to the coded belt 10, while the other end is provided with the compensation component 230. The compensation component 230 is used to change the position of the traction rod 220 relative to the fixed base 210, thereby compensating for the length of the coded belt 10.

[0085] It is understandable that when the ambient temperature changes significantly, the length of the coding tape 10 will change due to thermal expansion and contraction. At this time, the traction mechanism 200 compensates for the length of the coding tape 10, which can maintain the tension of the coding tape 10 and prevent it from being broken or damaged, thereby ensuring the reading accuracy and stability of the reading head device.

[0086] In one embodiment, please refer to Figure 12 and Figure 13 The compensation component 230 includes an elastic element 231 and an adjusting element 232 for adjusting the magnitude of the elastic force applied by the elastic element 231 to the traction rod 220. The elastic element 231 elastically connects the traction rod 220 and the fixed seat 210.

[0087] It is understood that the elastic element 231 can be a component made of a material with elastic deformation capability, such as a metal spring or a rubber elastomer, with its two ends connected to the traction rod 220 and the fixed seat 210 respectively, generating an elastic force between the traction rod 220 and the fixed seat 210. The adjusting element 232 can take various forms and can be a structure that can change the preload or working length of the elastic element 231, such as an adjusting nut or adjusting bolt. By cooperating with the traction rod 220 or the fixed seat 210, the magnitude of the elastic force of the elastic element 231 can be adjusted.

[0088] Therefore, this compensation component 230 structure can flexibly adjust the magnitude of the elastic force applied by the elastic element 231 to the traction rod 220 according to actual working requirements. When the traction rod 220 is subjected to external forces of different magnitudes, the elastic element 231 can absorb and buffer these forces through its own elastic deformation, ensuring the stability and accuracy of the movement of the traction rod 220. The setting of the adjusting element 232 allows the elastic force to be adjusted in a timely manner according to the actual situation during equipment operation, so as to adapt to different working environments and load changes, thereby improving the adaptability and reliability of the traction mechanism 200.

[0089] With this configuration, when the length of the coding tape 10 changes, the traction mechanism 200 compensates for the length of the coding tape 10, maintaining the taut state of the coding tape 10 and preventing it from being broken or damaged, thereby ensuring the reading accuracy and stability of the reading head device.

[0090] Furthermore, in this embodiment, the elastic element 231 is a spring, the adjusting element 232 is an adjusting nut, the adjusting nut is threadedly connected to the traction rod 220, the spring is sleeved on the traction rod 220 and elastically abuts against the fixed seat 210 and the adjusting nut; by adjusting the position of the adjusting nut on the traction rod 220, the magnitude of the elastic force applied by the spring to the traction rod 220 can be adjusted.

[0091] Understandably, the spring is generally a cylindrical helical spring, and its wire diameter, number of turns, and material can be selected according to the required elastic force and deformation range. The adjusting nut is a component with internal threads, and its outer diameter and thread specifications match the external threads on the traction rod 220. By rotating the adjusting nut, it can be moved axially on the traction rod 220. The spring is sleeved on the traction rod 220, with one end in contact with the fixed seat 210 and the other end in contact with the adjusting nut. When the adjusting nut moves, it changes the spring compression, thereby changing the elastic force applied by the spring to the traction rod 220.

[0092] Therefore, using a spring as the elastic element 231 has advantages such as simple structure, low cost, and a large elastic deformation range. The setting of the adjusting nut makes it convenient and quick to adjust the elastic force of the spring; it can be achieved simply by rotating the adjusting nut. This structure can precisely control the elastic force of the spring on the traction rod 220, ensuring that the traction rod 220 receives a suitable elastic force during movement, improving the motion accuracy and stability of the traction mechanism 200, and also facilitating the debugging and maintenance of the equipment.

[0093] With this setup, the compensating tension of the spring can be adjusted by adjusting the nut. When the tension needs to be increased, the adjusting nut is turned toward the fixed seat 210, the spring is compressed, and the compensating tension increases. When the tension needs to be decreased, the adjusting nut is turned away from the fixed seat 210, the spring is released and stretched, and the compensating tension decreases.

[0094] Specifically, the fixing base 210 is L-shaped, with triangular reinforcing plates on both sides. The entire fixing base 210 is integrally formed, and the traction rod 220 is vertically mounted on the long side of the L-shaped fixing base 210. The reinforcing plates enhance the stability of the fixing base 210. Furthermore, multiple adjusting nuts can be provided to enhance the stability of the screw connection.

[0095] Understandably, the two ends of the traction rod 220 are threaded, and the middle part is a smooth rod. The mounting base 210 is provided with a mounting hole 243, which is a through hole for the traction rod 220 to pass through, so that the traction rod 220 is clearance-fitted with the mounting hole 243 and slidably connected with the mounting base 210.

[0096] In another embodiment, the compensation component 230 may also be an electric mechanism connected to the traction rod 220 and used to change the position of the traction rod 220 relative to the fixed seat 210. The electric mechanism may be a motor-driven lead screw and nut pair, a gear and rack mechanism, etc.

[0097] Furthermore, the electric mechanism can also be equipped with sensors and a control system to monitor the position and movement of the pull rod 220 in real time and automatically adjust the position of the pull rod 220 according to a preset program.

[0098] In one embodiment, please refer to Figure 12 and Figure 13 The traction mechanism 200 also includes a traction head assembly 240, which includes a traction head body 241 and a plurality of code tape mounting members 242. The traction head body 241 is disposed at the end of the traction rod 220. The traction head body 241 is provided with an assembly groove 2411 and a plurality of mounting holes 243 communicating with the assembly groove 2411. The code tape 10 can be inserted into the assembly groove 2411. The plurality of code tape mounting members 242 are respectively provided with a plurality of mounting holes 243 and pass through the code tape 10 to install the code tape 10 on the traction head body 241. The assembly groove 2411 extends along a first direction, and the plurality of mounting holes 243 all extend along a second direction. The first direction and the second direction are arranged at an angle.

[0099] It is understandable that the shape of the traction head body 241 can be designed according to actual needs, generally in a block or column shape. The size and shape of the assembly groove 2411 are adapted to the size of the coding strip 10 to ensure that the coding strip 10 can be accurately and stably installed in it. The number and distribution of the mounting holes 243 are determined according to the structure and installation requirements of the coding strip 10. The coding strip mounting component 242 can be a bolt, pin, etc., and its diameter and length match the mounting holes 243 and the thickness of the coding strip 10. The included angle between the first direction and the second direction can be adjusted according to specific design and installation requirements. Preferably, the first direction and the second direction are set perpendicularly. Of course, the first direction and the second direction can also be set at other included angles such as 70 degrees and 85 degrees.

[0100] Therefore, the structural design of the traction head assembly 240 allows the coding tape 10 to be easily and quickly installed on the traction head body 241. The mounting slot 2411 provides space for positioning and installation of the coding tape 10, ensuring the relative positional accuracy between the coding tape 10 and the traction head body 241. The arrangement of several mounting holes 243 and the coding tape mounting piece 242 further enhances the connection between the coding tape 10 and the traction head body 241, preventing the coding tape 10 from falling off or loosening during movement.

[0101] Specifically, the assembly slot 2411 is a narrow slit, and is set from the end away from the compensation component 230 toward the connection between the traction head assembly 240 and the traction rod 220.

[0102] Furthermore, in this embodiment, the traction mechanism 200 also includes a fixing component 250, which includes a fixing nut. The end of the traction rod 220 is threadedly connected to the end of the traction head body 241, and the fixing nut is threadedly connected to the traction rod 220 and abuts against the end of the traction head body 241 to prevent the traction rod 220 from rotating relative to the traction head body 241.

[0103] Understandably, the end of the traction rod 220 is provided with an external thread, and the end of the traction head body 241 is provided with a matching internal thread. The traction rod 220 and the traction head body 241 are initially fixed through the threaded connection. The internal thread of the fixing nut is adapted to the external thread of the traction rod 220. After the traction rod 220 and the traction head body 241 are connected, the fixing nut is screwed into the traction rod 220, so that it is in tight contact with the end of the traction head body 241, thereby preventing the traction rod 220 from rotating relative to the traction head body 241.

[0104] Therefore, the fixing component 250 effectively prevents the traction rod 220 from rotating relative to the traction head body 241, ensuring the stability and reliability of the connection between the traction rod 220 and the traction head body 241. During the operation of the traction mechanism 200, the traction rod 220 is subjected to forces and torques in various directions. Without the constraint of the fixing component 250, the traction rod 220 may rotate relative to the traction head body 241, causing a change in the installation position of the coding tape 10 and affecting the accuracy of code reading. The tightening action of the fixing nut ensures that the traction rod 220 and the traction head body 241 always maintain a relatively fixed positional relationship, improving the operating accuracy and stability of the traction mechanism 200, and also facilitating the installation and debugging of the equipment.

[0105] Understandably, the end of the traction rod 220 passes through the end threaded hole of the traction head body 241 and extends into the mounting groove 2411 to abut against the end of the coding tape 10, so as to stably install the coding tape 10 in the mounting groove 2411.

[0106] Specifically, two traction mechanisms 200 are provided, one at each end of the coding belt 10. The two traction mechanisms 200 have essentially the same structure and function, and are symmetrically installed at both ends of the coding belt 10. They work together to traction and position the coding belt 10. The installation position and spacing of the two traction mechanisms 200 can be adjusted according to the length of the coding belt 10 and working requirements to ensure that the coding belt 10 remains flat and stable during movement.

[0107] Therefore, by setting traction mechanisms 200 at both ends of the coding tape 10, bidirectional traction and control of the coding tape 10 can be achieved. This structure ensures that the coding tape 10 is subjected to uniform tension during movement, avoiding problems such as slackness, twisting, or deviation of the coding tape 10, and improving the movement accuracy and code reading accuracy of the coding tape 10.

[0108] By setting up the dual traction mechanism 200, when the length of the coding tape 10 changes due to changes in the external temperature environment, the tension at both ends of the coding tape 10 can be adjusted to compensate for the changes. This solves the problem that when the temperature environment changes, the length of the traction mechanism 200 changes, resulting in situations where the two ends are not pulled tight enough or are pulled too tight.

[0109] In one embodiment, please refer to Figures 7 to 11 The reading head device includes a reading head body 300, a guide mechanism 400, and a cleaning mechanism 500. The guide mechanism 400 is disposed on the reading head body 300 and is slidably disposed on the guide rail mechanism 100. The guide rail body 110 is also provided with a guide sliding groove 140, which is used to cooperate with the guide mechanism 400 to support the reading head device to slide on the guide rail mechanism 100.

[0110] In one embodiment, please refer to Figures 7 to 11 The guiding mechanism 400 includes a sliding frame 401, and a first pulley 402 and a second pulley 403 disposed on the sliding frame 401. The rotation axis of the first pulley 402 and the rotation axis of the second pulley 403 are set at an angle. The guide rail mechanism 100 is provided with a guide sliding groove 140, and the first pulley 402 and the second pulley 403 are respectively used to slide in contact with the groove wall of the guide sliding groove 140. It can be understood that by achieving contact sliding in two directions through the first pulley 402 and the second pulley 403, the sliding frame 401 can be supported and guided from different directions. This effectively restricts the degree of freedom of the sliding frame 401 on the guide rail mechanism 100, avoids its left-right swaying and front-back offset during the sliding process, and allows the position decoder and the reading head device to slide smoothly and steadily along the guide rail mechanism 100, providing a reliable guarantee for the stable operation of the reading head device.

[0111] In one embodiment, please refer to Figures 7 to 11 The guide mechanism 400 includes a first side wheel module 410 and a second side wheel module 420 arranged opposite to each other. Both the first side wheel module 410 and the second side wheel module 420 include a sliding frame 401, and a first pulley 402 and a second pulley 403 arranged on the sliding frame 401. Two guide sliding grooves 140 are provided and symmetrically arranged on both sides of the guide rail mechanism 100. The first side wheel module 410 and the second side wheel module 420 are respectively housed in each guide sliding groove 140 on both sides of the guide rail mechanism 100.

[0112] It is understandable that the first side wheel module 410 and the second side wheel module 420 have the same structure and are arranged symmetrically. The sliding frame 401 serves as the load-bearing base, and its shape and size are designed according to the structure of the guide rail mechanism 100 and the guide sliding groove 140 to ensure stable installation in the corresponding position. The first pulley 402 and the second pulley 403 are both rotatably mounted on the sliding frame 401 via a rotating shaft. Their materials are generally selected to be wear-resistant and high-strength to adapt to the working environment of long-term sliding friction.

[0113] Therefore, this symmetrically arranged guide mechanism 400 structure ensures that the guiding force is evenly distributed on both sides of the guide rail mechanism 100, which can effectively guarantee the stability and straightness of the equipment during movement and reduce errors caused by offset or shaking.

[0114] In one embodiment, please refer to Figures 7 to 11The rotation axis of the first pulley 402 is perpendicular to the rotation axis of the second pulley 403. The guide sliding groove 140 includes a top wall 141 and a bottom wall 142 disposed opposite to each other, and a side wall 143 connecting the top wall 141 and the bottom wall 142. The first pulley 402 is used to slide in connection with the top wall 141 and the bottom wall 142 of the guide sliding groove 140, and the second pulley 403 is used to slide in connection with the side wall 143 of the guide sliding groove 140.

[0115] Understandably, the rotation axes of the first pulley 402 and the second pulley 403 are perpendicular. This structural design allows the pulleys to contact the guide sliding groove 140 from different directions, achieving constraint and guidance of the equipment in multiple directions. The wheel surface of the first pulley 402 is parallel to the top wall 141 and bottom wall 142 of the guide sliding groove 140, and slides in close contact with the top wall 141 and bottom wall 142 during movement; the wheel surface of the second pulley 403 is parallel to the side wall 143 of the guide sliding groove 140, and slides in contact with the side wall 143. The top wall 141, bottom wall 142, and side wall 143 of the guide sliding groove 140 are all precision machined to ensure surface flatness and dimensional accuracy, ensuring smooth sliding of the pulleys.

[0116] Therefore, by sliding the first pulley 402 to the top wall 141 and the bottom wall 142, and sliding the second pulley 403 to the side wall 143, the equipment can be guided simultaneously in the vertical and horizontal directions, which greatly improves the accuracy and stability of the guidance.

[0117] In one embodiment, multiple first pulleys 402 and second pulleys 403 are provided, and they are all distributed at intervals along the extension direction of the guide rail mechanism 100.

[0118] It is understood that multiple first pulleys 402 and multiple second pulleys 403 are arranged at intervals in the extension direction of the guide rail mechanism 100, and the number of pulleys can be adjusted according to actual needs to adapt to guide rail mechanisms 100 of different lengths and loads.

[0119] Therefore, the spacing of multiple pulleys can increase the contact points between the guide mechanism 400 and the guide sliding groove 140, disperse the pressure and friction generated during the movement of the equipment, reduce the wear of individual pulleys, and extend the service life of the pulleys.

[0120] At the same time, this distribution method can more evenly bear the weight of the equipment and external forces, improve the stability and accuracy of the guidance, make the equipment more stable during movement, reduce vibration and noise, and improve the overall performance and operating quality of the equipment.

[0121] Furthermore, in this embodiment, each second pulley 403 is disposed between at least two first pulleys 402. This can be understood as follows: when there are two first pulleys 402, each second pulley 403 is disposed between the two first pulleys 402; when there are three first pulleys 402, each second pulley 403 has two first pulleys 402 on one side and one first pulley 402 on the other side. The second pulleys 403 and the first pulleys 402 maintain a certain distance to avoid mutual interference, while simultaneously working together to complete the guiding task.

[0122] This layout can better disperse the horizontal and vertical forces generated during equipment movement, reduce guidance deviations caused by uneven force distribution, and improve guidance accuracy and reliability.

[0123] Of course, in other embodiments, each first pulley 402 may also be arranged intersectingly with each second pulley 403, that is, a first pulley 402 and a second pulley 403 are alternately distributed in sequence. This intersecting arrangement can also make the distribution of pulleys in the extension direction of the guide rail mechanism 100 more uniform, and can guide the equipment from multiple angles and directions.

[0124] In one embodiment, please refer to Figure 8 and Figure 9 The cleaning mechanism 500 includes a mounting bracket 510 for mounting and connecting with the reader body 300, and a dust removal brush assembly 520 for cleaning the coding tape 10. The coding tape 10 extends along a first direction, and the reader body 300 is capable of reciprocating relative to the coding tape 10 along the straight line of the first direction. Two sets of dust removal brush assemblies 520 are provided and are respectively provided at both ends of the reader body 300 along the first direction.

[0125] It is understandable that, since the read head body 300 and the encoding tape 10 are separate structures, in actual operation, the encoding tape 10 is exposed to the working environment. Considering that foreign objects, large dust particles, etc. may adhere to the encoder tape, or even the location of the tape hole, the foreign objects attached to it can easily interfere with the reading of the read head body 300 signal.

[0126] In this embodiment, two sets of dust removal brush assemblies 520 are respectively located at both ends of the read head body 300 along the first direction. During actual operation, when the read head body 300 reciprocates along the encoding strip 10, regardless of its direction of movement, the corresponding dust removal brush assembly 520 can promptly clean the encoding strip 10 near the start and end positions of the movement. For example, when the read head body 300 moves from one end to the other, the dust removal brush assembly 520 near the starting end first performs a preliminary cleaning of the encoding strip 10, removing larger dust particles from the surface; while when the read head body 300 moves in the opposite direction, the dust removal brush assembly 520 at the other end cleans the encoding strip 10 again, further ensuring the cleanliness of the encoding strip 10.

[0127] Therefore, this setup enables bidirectional cleaning of the encoding tape 10 during its movement, effectively preventing some areas from being missed due to the reciprocating motion of the read head body 300. This greatly improves the cleaning effect of the encoding tape 10, thereby ensuring the accuracy and stability of the read head body 300 in reading the information from the encoding tape 10, and preventing foreign objects attached to the tape from interfering with the reading of the encoder read head signal.

[0128] In one embodiment, please refer to Figure 8 and Figure 9 The dust removal brush assembly 520 includes a first brush body 521 and a second brush body 522 disposed opposite to each other, the first brush body 521 and the second brush body 522 enclosing a cleaning gap for cleaning the coding strip 10.

[0129] Understandably, the coding strip 10 typically has a certain width and thickness. The first brush body 521 and the second brush body 522 clamp and clean the coding strip 10 from both sides, ensuring complete coverage of its surface. For example, the first brush body 521 can clean one side edge and part of the middle area of ​​the coding strip 10, while the second brush body 522 cleans the other side edge and the remaining middle area. The two work together to ensure that the coding strip 10 is effectively cleaned along its entire width.

[0130] In one embodiment, please refer to Figure 8 and Figure 9 The dust removal brush assembly 520 also includes several brush body fixing components, which pass through the first brush body 521 and the second brush body 522 respectively, and are detachably connected to the mounting bracket 510 to fix the first brush body 521 and the second brush body 522 on the mounting bracket 510.

[0131] Understandably, the method of using several brush body fixing components to pass through the first brush body 521 and the second brush body 522 respectively and detachably connect to the mounting bracket 510 provides high flexibility and practicality. In practical applications, different usage environments may have different cleaning requirements, or the brush bodies may wear out and need to be replaced after a period of use. This detachable connection design allows operators to easily and quickly install, remove, and replace the first brush body 521 and the second brush body 522. This detachable connection structure greatly improves the convenience of maintenance and reduces maintenance costs and time.

[0132] In one embodiment, please refer to Figure 8 and Figure 9 The dust removal brush assembly 520 also includes several gaskets, which are disposed between the mounting frame 510 and the first brush body 521. The brush body fixing member passes through the mounting frame 510 and the several gaskets and is detachably connected to the first brush body 521. Several gaskets are disposed between the mounting frame 510 and the second brush body 522. The brush body fixing member passes through the mounting frame 510 and the several gaskets and is detachably connected to the second brush body 522 to adjust the size of the cleaning gap formed by the first brush body 521 and the second brush body 522.

[0133] Understandably, by placing shims between the mounting bracket 510 and the first brush body 521 and the second brush body 522, and using a through-connection with a brush body fixing component, precise adjustment of the cleaning gap is achieved. In actual operation, due to manufacturing tolerances of the coding tape 10, wear variations during use, or different requirements for cleaning force, the cleaning gap may need to be adjusted. Operators can adjust the cleaning gap by increasing or decreasing the number of shims to change the distance between the brush body and the mounting bracket 510. For example, when it is necessary to increase the cleaning gap to accommodate a thicker coding tape 10 or to reduce the cleaning force, the number of shims can be reduced; conversely, when it is necessary to decrease the cleaning gap to enhance the cleaning effect, the number of shims can be increased.

[0134] In one embodiment, the read head body 300 moves bidirectionally left and right on the encoding tape 10. One side of the read head body 300 has a light-emitting diode. The light beam is transmitted through the code tape hole on the encoding tape 10 to the photosensitive element on the other side of the read head body 300. That is, the read head body 300 calculates the absolute position information by reading the information of the code tape hole on the encoding tape 10.

[0135] Since the collimation of the beam has a great impact on the performance of the photoelectric encoder, which is the combination of the light-emitting diode and the photosensitive element, the size and light transmission characteristics of the code tape 10 hole directly affect the measurement value. In actual work, the code tape 10 is exposed to the working environment. Considering that foreign objects, large dust particles, etc. may adhere to the code tape 10, or even the location of the code tape hole, a cleaning structure can effectively remove foreign objects and dust from the code tape.

[0136] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A guide rail mechanism for mounting coded tape, characterized in that, The guide rail mechanism includes a guide rail body and a rubber strip. The guide rail body extends along a first direction and has a fixed mounting cavity. The fixed mounting cavity extends along the first direction, and a locking surface for engaging and limiting the rubber strip is formed on the cavity wall of the fixed mounting cavity. The coding strip is disposed in the fixed mounting cavity. The rubber strip extends along the first direction and can be inserted into the fixed mounting cavity. The rubber strip is restricted in the fixed mounting cavity by the locking surface, so that the rubber strip elastically abuts against the coding strip and the cavity wall of the fixed mounting cavity, thereby fixing the coding strip to the guide rail body.

2. The guide rail mechanism for mounting the coding tape according to claim 1, characterized in that, A guide surface is also formed on the cavity wall of the fixed mounting cavity. The distance between the guide surface and the coding strip gradually decreases from the opening of the fixed mounting cavity to the inside of the fixed mounting cavity, and is used to guide the adhesive strip into the fixed mounting cavity.

3. The guide rail mechanism for mounting the coded tape according to claim 2, characterized in that, The fixed mounting cavity includes the opening, a bottom end for positioning the coding tape, and a straight surface and a bent surface extending from the bottom end to the opening; The coding strip is affixed to the flat surface, and both the locking surface and the guiding surface are disposed on the bent surface. The locking surface is located between the guiding surface and the bottom end.

4. The guide rail mechanism for mounting the coded tape according to claim 1, characterized in that, The guide rail body is also provided with a guide support cavity, which extends along the first direction; The guide rail mechanism further includes several support assemblies, which are respectively housed in the guide support cavity and used to support the guide rail body.

5. The guide rail mechanism for mounting the coded tape according to claim 4, characterized in that, The support assembly includes a support base and a guide connecting base. The guide connecting base is disposed on the support base and is slidably disposed within the guide support cavity, and can slide relative to the guide rail body along the first direction.

6. The guide rail mechanism for mounting the coded tape according to claim 5, characterized in that, The guide support cavity includes a guide sliding cavity and a guide limiting cavity disposed adjacent to the guide sliding cavity, both of which extend along the first direction; The guide connector includes a connecting body, a guide block and a connecting block disposed on the connecting body, and a rolling element disposed on the connecting block. The connecting block is disposed in the guide sliding cavity, and the rolling element can contact and roll with the cavity wall of the guide sliding cavity. The guide block is slidably disposed in the guide limiting cavity, and the guide limiting cavity is used to restrict the guide block from sliding along the first direction.

7. The guide rail mechanism for mounting the coded tape according to claim 1, characterized in that, The guide rail body includes a plurality of guide rail components, all of which extend along the first direction and are arranged end to end in sequence. The guide rail mechanism also includes several connecting components, which are used to detachably connect two adjacent guide rail components to assemble the guide rail body.

8. The guide rail mechanism for mounting the coded tape according to claim 7, characterized in that, The guide rail body is also provided with a first connecting cavity and a second connecting cavity, both of which extend along the first direction; The connecting assembly includes a first connecting strip, a second connecting strip, and a plurality of connecting members. The two ends of the first connecting strip are respectively housed in the first connecting cavities of two adjacent guide rail components. The plurality of connecting members pass through the first connecting strip and abut against the cavity wall of the first connecting cavity. The two ends of the second connecting strip are respectively housed in the second connecting cavities of two adjacent guide rail components. The plurality of connecting members pass through the second connecting strip and abut against the cavity wall of the second connecting cavity, so as to detachably connect the two adjacent guide rail components.

9. A position detection system, characterized in that, The position detection system includes an encoding tape, a reader, and a guide rail mechanism for mounting the encoding tape as described in any one of claims 1 to 8; The encoding strip is disposed on the guide rail mechanism, and the reading head device is slidably disposed on the guide rail mechanism and is used to read the position information of the encoding strip.

10. The position detection system according to claim 9, characterized in that, The position detection system further includes a traction mechanism disposed at the end of the coded tape and used to traction and compensate for the length of the coded tape; and / or, The reading head device includes a reading head body, a guiding mechanism, and a cleaning mechanism. The guiding mechanism is disposed on the reading head body and is slidably disposed on the guide rail mechanism. The guide rail body is also provided with a guiding sliding groove, which is used to cooperate with the guiding mechanism to support the reading head device to slide on the guide rail mechanism.

Images