Annular guide rail and adjusting method thereof
By setting multiple rollers on the moving body of the annular guide rail and designing appropriate structures in the main body of the guide rail, such as overlapping overlap and beveled surfaces, combined with adjustable transmission mechanism and adjustment components, the wear and stability of the annular guide rail is solved. The lack of flexibility and adaptability has achieved higher mobility stability and adaptability.
Patent Information
- Application Number
- CN202411939343.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-02-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing annular guide rails have shortcomings in terms of mobile body wear, stability and track adaptability, and it is difficult to solve these problems at the same time.
A ring guide rail is designed, and its moving body is provided with multiple rollers. The guide rail body includes a linear guide groove and an arc guide groove. The movement space and stability are improved through overlapping overlap and beveled surface design, and through adjustable transmission Mechanisms and adjustment components improve adaptability.
The multi-roller design reduces wear, improves the stability and adaptability of the moving body, ensures the continuity of the guide rail and reduces friction interference, and improves the overall performance of the annular guide rail.
Smart Images
Figure CN119429550A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of guide rails, and in particular to an annular guide rail and an adjustment method thereof. Background Art
[0002] The application of circular guide rails in the circular movement of objects is mainly reflected in its closed-loop transmission characteristics. It is mainly composed of linear guide rails, circular arc guide rails, and transmission mechanisms to form a closed circular track system. Its working principle mainly relies on precise mechanical structure and drive system. The transmission mechanism enables the moving body to move circularly on the circular guide rail, thereby realizing continuous, efficient and automatic movement of objects.
[0003] Annular guide rails are divided into rolling annular guide rails and sliding annular guide rails. Among them, rolling annular guide rails are equipped with roller sliders or ball sliders through tracks. The straight part and the arc part of this track must be closely connected, the track accuracy requirements and the installation surface accuracy requirements are relatively high, the comprehensive application cost is high, and the adaptability is poor; while sliding annular guide rails are generally arranged by arranging sliders on the inner and outer sides of the annular guide rail to clamp the wing edge of the annular guide rail for sliding, but there is a problem of slider wear. Slider wear is not only prone to dust pollution and failure, but also leads to poor stability of the moving body. Generally, grease needs to be added regularly on the inside and outside of the guide rail. However, the grease is easy to fall off and cause clean pollution. Therefore, it is difficult for the current annular guide rails to simultaneously and well solve the problems of moving body wear, stability and track adaptability, and there is still room for improvement. Summary of the invention
[0004] In order to improve the track adaptability while reducing the wear of the moving body in the annular guide rail and improving the stability of the moving body, the present application provides a circulating track system and an adjustment method thereof.
[0005] The present application provides a circular guide rail and an adjustment method thereof using the following technical solutions: A circular guide rail comprises a guide rail body, a moving body sliding along the extension direction of the guide rail body and a transmission mechanism for driving the moving body to move in a circular motion in the guide rail body; the moving body is provided with a plurality of rollers, and the plurality of rollers are arranged in the guide rail body and distributed side by side along the moving direction of the moving body; the guide rail body comprises two sections of linear guide grooves and two circular arc guide grooves, the two circular arc guide grooves are respectively connected to the two ends of the linear guide groove to form an annular closed track, the outer side of the end portion of the outer linear groove wall of the linear guide groove is overlapped with the inner side of the outer circular arc groove wall of the circular arc guide groove in an overlapping manner, and the inner side of the end portion of the outer linear groove wall of the linear guide groove is provided with a chamfered surface, and the chamfered surface is inclined toward the inner side of the outer circular arc groove wall of the circular arc guide groove.
[0006] By adopting the above technical solution, the moving body is provided with multiple rollers, so that multiple fulcrums can be provided for the moving body inside the guide rail body, which is beneficial to improving the moving stability of the moving body inside the guide rail body, and can reduce wear by moving inside the guide rail in the form of rolling; then, the inner side of the outer arc groove wall of the circular arc guide groove and the inner side of the outer linear groove wall of the linear guide groove are butted against each other in an overlapping overlapping manner, so that the width of the circular arc guide groove is greater than the width of the linear guide groove, so that the multiple rollers of the moving body have a larger movement space when moving into the circular arc guide groove, and the moving body is subjected to When the running trajectory is constrained by the transmission mechanism and there is a deviation from the annular guide rail, the larger movement space of the arc guide groove can improve the adaptability of the annular guide rail; in addition, by arranging a beveled surface on the inner side of the end of the outer arc groove wall of the linear guide groove, the inner side of the outer linear groove wall of the linear guide groove and the inner side of the outer arc groove wall of the arc guide groove complete the connection transition, and the roller of the moving body is in line contact when passing through the beveled surface, so that the influence of the connection position can be ignored, which is beneficial to improving the moving stability of the moving body and reducing friction, and is beneficial to reducing the friction interference of the inner wall of the guide rail body while ensuring the continuity of the guide rail.
[0007] Preferably, the transmission mechanism includes two transmission shafts, sprockets coaxially sleeved on the transmission shafts, chains sleeved between the two sprockets, and a driving member for driving one of the transmission shafts to rotate, the movable body is connected to the chain, and the two transmission shafts are respectively fixedly connected to the outer arc groove walls of two circular arc guide grooves, and the outer arc groove walls of the circular arc guide grooves can be positionally adjusted along the length direction of the outer linear groove walls of the linear guide grooves.
[0008] By adopting the above technical scheme, the transmission mechanism composed of the sprocket chain has the characteristics of long transmission distance, high load-bearing capacity and strong adaptability. The transmission shafts of the two sprockets are fixedly connected to the outer arc groove walls of the two arc guide grooves respectively. When the chain works for a long time and the elongation increases, the distance between the two transmission shafts can be increased by adjusting the distance between the outer arc groove walls of the two arc guide grooves, so as to achieve the purpose of chain tensioning, which is beneficial to improving the adaptability of the annular guide rail.
[0009] Preferably, the outer arc groove wall and the inner arc groove wall of the arc guide groove are detachable structures, and the inner arc groove wall of the arc guide groove is fixed and smoothly connected with the inner linear groove wall of the linear guide groove.
[0010] By adopting the above technical scheme, the outer arc groove wall and the inner arc groove wall of the arc guide groove are detached, and the inner arc groove wall and the inner straight groove wall are fixed. When the center distance of the two arc guide grooves is adjusted, a smooth connection state is still maintained, which is conducive to the stable movement of multiple rollers of the moving body in the guide rail body. In addition, during the actual use and operation of the moving body, when the roller moves into the arc guide groove, the moving body also just moves to the sprocket. Due to the meshing of the chain and the sprocket, the chain node trajectory is limited to a certain concentric circle of the sprocket, and the roller is connected together through the moving body and the chain. At this time, the moving trajectory of the roller changes, and the running space required by the roller is slightly larger than the groove space of the standard annular guide rail body based on the sprocket. By adjusting the position of the outer arc groove wall to change the spacing between the inner arc groove wall and the outer arc groove wall, the internal space of the arc guide groove can be expanded, which is conducive to reducing the interference between the roller and the outer arc groove wall and improving the smoothness of the multiple rollers of the moving body when performing the reversing action in the arc guide groove.
[0011] Preferably, an adjustment component is provided between the outer circular arc groove wall of the circular arc guide groove and the outer linear groove wall of the linear guide groove, and the adjustment component is used to adjust the position of the outer circular arc groove wall along the length direction of the outer linear wall.
[0012] By adopting the above technical solution, the adjustment component is used to adjust the position between the outer arc groove wall and the outer straight groove wall of the straight guide groove, which is beneficial to improving the adjustment efficiency of the guide rail body.
[0013] Preferably, the adjustment assembly includes a guide seat arranged on the outside of the outer straight groove wall, a locking plate arranged on the outside of the outer arc groove, a guide rod passing through the guide seat along the length direction of the outer straight groove wall, and a spring sleeved on the outer circumference of the guide rod, a top piece is arranged on the outer circumferential surface of the guide rod, and the spring is arranged between the guide seat and the top piece to pre-tighten the outer arc wall.
[0014] By adopting the above technical solution, when the chain tends to loosen as the elongation increases, the preload force of the spring acts on the guide rod and the guide seat through the top piece, so that the guide rod can slide and drive the locking plate to adjust the position of the outer arc wall, thereby achieving the purpose of automatic tensioning.
[0015] Preferably, the top piece is specifically a nut, and the nut is threadedly connected to the outer peripheral surface of the guide rod.
[0016] By adopting the above technical solution, the distance between the top piece and the guide seat is changed by rotating the nut, thereby adjusting the tightness of the spring, which is conducive to adjusting the preload force of the spring acting on the outer arc groove wall according to usage conditions.
[0017] Preferably, the annular guide rail also includes a positioning frame, and the guide rail bodies are two in total and symmetrically distributed on both sides of the positioning frame, and the plurality of rollers are disposed at both ends of the moving body and roll in the two guide rail bodies respectively, and the opposite sides of the two guide rail bodies are slidably connected with a sliding seat, the end of the transmission shaft is rotatably connected to the sliding seat, and the outer arc groove wall is fixedly connected to the sliding seat.
[0018] By adopting the above-mentioned technical solution, the two guide rail bodies can improve the moving stability of the moving body by sliding the sliding seat to the opposite side of the guide rail body. At the same time, the sliding seat also serves as a connecting component between the transmission shaft and the outer arc groove wall, which is beneficial to the synchronous and stable movement of the transmission shaft and the outer arc groove wall.
[0019] A method for adjusting a ring guide rail comprises the following steps: When installing the annular guide rail, adjust the outer arc groove wall positions of the two arc guide grooves in the direction of approaching each other to reduce the center distance of the outer arc groove walls of the two arc guide grooves, then put the chain on the two sprockets, and then adjust the outer arc groove wall positions of the two arc guide grooves in the direction of moving away from each other to tighten the chain; When the annular guide rail is in operation, the driving member drives the moving body to operate along the extension direction of the guide rail body; When the chain becomes loose, the outer arc groove walls of the two arc guide grooves are adjusted away from each other to tighten the chain.
[0020] By adopting the above technical solution, when the chain works for a long time and the elongation increases, the distance between the two transmission shafts can be increased by adjusting the distance between the outer arc groove walls of the two arc guide grooves, so as to achieve the purpose of chain tensioning, which is beneficial to improving the adaptability of the annular guide rail.
[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. By arranging multiple rollers on the moving body, multiple points of force can be provided for the moving body inside the guide rail body, which is conducive to improving the moving stability of the moving body inside the guide rail body, and the moving body inside the guide rail in the form of rolling can reduce wear; 2. The inner side of the outer arc groove wall of the arc guide groove and the inner side of the outer linear groove wall of the linear guide groove are butted against each other by overlapping and overlapping, so that the width of the arc guide groove is greater than that of the linear guide groove. Therefore, when the multi-roller of the moving body moves into the arc guide groove, it has a larger movement space. When the moving body is constrained by the transmission mechanism and the running trajectory deviates from the annular guide rail, the larger movement space of the arc guide groove can improve the adaptability of the annular guide rail. 3. By arranging a chamfered surface on the inner side of the end of the outer arc groove wall of the linear guide groove, the inner side of the outer linear groove wall of the linear guide groove and the inner side of the outer arc groove wall of the arc guide groove are connected and transitioned, and the roller of the moving body is in line contact when passing through the chamfered surface, so that the influence of the connection position can be ignored, which is beneficial to improving the moving stability of the moving body and reducing friction, and is beneficial to reducing the friction interference of the inner wall of the guide rail body while ensuring the continuity of the guide rail; 4. By fixing the transmission shafts of the two sprockets to the outer arc groove walls of the two arc guide grooves respectively, when the chain works for a long time and the elongation increases, the distance between the outer arc groove walls of the two arc guide grooves can be adjusted to increase the distance between the two transmission shafts, so as to achieve the purpose of tensioning the chain, which is beneficial to improving the adaptability of the annular guide rail; 5. An adjustment component is arranged between the outer arc groove wall of the arc guide groove and the outer linear groove wall of the linear guide groove. The adjustment component is composed of a guide seat at the outer linear groove wall, a locking plate at the outer arc groove, a guide rod passing through the guide seat, and a spring for providing a preload. The preload of the spring acts on the guide rod and the guide seat through the top piece, so that the guide rod can slide and drive the locking plate to adjust the position of the outer arc wall, thereby achieving the purpose of automatic tensioning. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall structure of a ring guide rail in Example 1 of the present application.
[0023] Figure 2 yes Figure 1 A magnified schematic diagram of center A.
[0024] Figure 3 It is a structural schematic diagram of an adjustment component of a ring guide rail in Example 2 of the present application.
[0025] Figure 4 yes Figure 3 A magnified schematic diagram of point B in the middle.
[0026] Explanation of the accompanying drawings: 1. Guide rail body; 2. Positioning frame; 3. Transmission mechanism; 31. Transmission shaft; 32. Sprocket; 33. Driving member; 34. Chain; 4. Moving body; 5. Linear guide groove; 51. Inner linear groove wall; 52. Outer linear groove wall; 6. Arc guide groove; 61. Inner arc groove wall; 62. Outer arc groove wall; 7. Sliding seat; 8. Roller; 9. Adjustment assembly; 91. Guide seat; 92. Spring; 93. Top member; 94. Guide rod; 95. Locking plate. DETAILED DESCRIPTION
[0027] The following is combined with Figure 1-4 This application is described in further detail.
[0028] Example 1 The present application embodiment discloses a circular guide rail, referring to Figure 1 and Figure 2 , including a positioning frame 2, a guide rail body 1 supported and installed on both sides of the positioning frame 2, a moving body 4 sliding along the extension direction of the guide rail body 1, and a transmission mechanism 3 for driving the moving body 4 to circulate in the guide rail body 1. Among them, the length direction of the guide rail body 1 is longitudinal, and the length direction of the moving body 4 is transverse. A plurality of rollers 8 are respectively installed at both ends of the moving body 4, and the plurality of rollers 8 are disposed inside the two guide rail bodies 1 and distributed side by side along the moving direction of the moving body 4. The number of rollers 8 at each end of the moving body 4 is 2 or more, so that multiple points of force can be provided for the moving body 4 inside the guide rail body 1, which is conducive to improving the moving stability of the moving body 4 in the guide rail body 1, and moving inside the guide rail in the form of rolling can reduce wear. In this embodiment, the number of rollers 8 at each end of the moving body 4 is 2.
[0029] In this embodiment, the guide rail body 1 includes two sections of linear guide grooves 5 and two arc guide grooves 6, and the two arc guide grooves 6 are respectively connected at both ends of the linear guide groove 5 to form a circular closed track. Among them, the outer side of the end of the outer linear groove wall 52 of the linear guide groove 5 is overlapped with the inner side of the outer arc groove wall 62 of the arc guide groove 6 by overlapping. In the embodiment of the present application, the overlapping part of the outer linear groove wall 52 of the linear guide groove 5 and the outer arc groove wall 62 of the arc guide groove 6 is directly locked by screws. By adopting the overlapping overlap method to connect the inner side of the outer arc groove wall 62 of the arc guide groove 6 and the inner side of the outer linear groove wall 52 of the linear guide groove 5, the width of the arc guide groove 6 is greater than the width of the linear guide groove 5, so that the multi-roller 8 of the moving body 4 has a larger movement space when moving into the arc guide groove 6. When the moving body 4 is constrained by the transmission mechanism 3 and the running trajectory deviates from the circular guide rail, the larger movement space of the arc guide groove 6 can improve the adaptability of the circular guide rail.
[0030] In addition, a chamfer is provided on the inner side of the end of the outer linear groove wall 52 of the linear guide groove 5, and the chamfer is inclined toward the inner side of the outer circular groove wall 62 of the circular guide groove 6, so as to complete the connection transition between the outer linear groove wall 52 of the linear guide groove 5 and the outer circular groove wall 62 of the circular guide groove 6. The roller 8 of the moving body 4 is in line contact when passing through the chamfer, so the influence of the connection position can be ignored, which is beneficial to improve the moving stability of the moving body 4 and reduce friction, and is beneficial to reduce the friction interference of the inner wall of the guide rail body 1 while ensuring the continuity of the guide rail.
[0031] In this embodiment, the transmission mechanism 3 includes two transmission shafts 31, a sprocket 32 coaxially sleeved on the transmission shaft 31, a chain 34 sleeved between the two sprockets 32, and a driving member 33 for driving one of the transmission shafts 31 to rotate, and the moving body 4 is fixedly connected to the chain 34. The two transmission shafts 31 correspond to the outer arc groove walls 62 of the arc guide groove 6 at both ends of each guide rail body 1. The two guide rail bodies 1 are slidably connected to the sliding seats 7 on the opposite sides, and each guide rail body 1 is arranged at both ends of a sliding seat 7. The two ends of the transmission shaft 31 are rotatably connected to the sliding seats 7 at the two guide rail bodies 1, respectively. In addition, the outer arc groove wall 62 of the arc guide groove 6 is fixedly connected to the sliding seat 7, so that the transmission shaft 31 and the outer arc groove wall 62 of the corresponding arc guide groove 6 can move synchronously, wherein the center of the outer arc groove wall 62 coincides with the axis of the corresponding transmission shaft 31. In this embodiment, the driving member 33 adopts a motor and a synchronous belt mechanism, which links the motor output shaft and one of the driven shafts, wherein the driving member 33 is installed and fixed between two relative sliding seats 7, so that the driving member 33 can move synchronously with the transmission shaft 31.
[0032] In this embodiment, the outer arc groove wall 62 of the arc guide groove 6 can be adjusted in position along the length direction of the outer linear groove wall 52 of the linear guide groove 5. When the chain 34 tends to loosen as the elongation increases, the chain 34 is tightened by increasing the center distance between the two outer arc groove walls 62.
[0033] In this embodiment, the outer arc groove wall 62 and the inner arc groove wall 61 of the arc guide groove 6 are detachable structures, and the inner arc groove wall 61 of the arc guide groove 6 is fixed and smoothly connected with the inner straight groove wall 51 of the straight guide groove 5. When the center distance between the two arc guide grooves 6 is adjusted, the inner straight groove wall 51 and the inner arc groove wall 61 still maintain a smoothly connected state, which is beneficial to the stable movement of multiple rollers 8 of the moving body 4 in the guide rail body 1.
[0034] The present application discloses a method for adjusting a circular guide rail, comprising the following steps: When installing the annular guide rail, the two sliding seats 7 at each guide rail body 1 are synchronously moved in the direction of approaching each other to adjust the position of the outer arc groove walls 62 of the two arc guide grooves 6 to reduce the center distance of the outer arc groove walls 62 of the two arc guide grooves 6 to reduce the distance between the two transmission shafts 31, and then the chain 34 is sleeved on the sprockets 32 of the two transmission shafts 31, and then the two sliding seats 7 at each guide rail body 1 are adjusted in the direction of moving away from each other to adjust the position of the outer arc groove walls 62 of the two arc guide grooves 6, and finally the chain 34 is tightened, and then the overlapping position of the outer arc groove wall 62 and the outer straight groove wall 52 is locked with screws.
[0035] When the annular guide rail is running, the motor of the driving member 33 is started to drive one of the transmission shafts 31 to rotate, and then under the linkage of the chain 34, the two transmission shafts 31 and the sprocket 32 start to operate, and the chain 34 drives the moving body 4 to operate along the extension direction of the guide rail main body 1. When the multiple rollers 8 of the moving body 4 move into the circular arc guide groove 6, the circular arc guide groove 6 provides it with a larger movement space. When the rollers 8 of the moving body 4 pass through the beveled surface, they are in line contact, so that the influence of the connection position can be ignored, which is beneficial to improving the movement stability of the moving body 4 and reducing friction, and is beneficial to reducing the friction interference of the inner wall of the guide rail main body 1 while ensuring the continuity of the guide rail.
[0036] When the chain 34 becomes loose, the operation is stopped, and then the positions of the outer arc groove walls 62 of the two arc guide grooves 6 are adjusted away from each other to tighten the chain 34, and then the driving member 33 is started to allow the moving body 4 to continue to operate under the guidance of the annular guide rail.
[0037] The difference between Example 2 and Example 1 is that: Reference Figure 3 and Figure 4 In Embodiment 2, an adjustment component 9 is installed between the outer arc groove wall 62 of the arc guide groove 6 and the outer linear groove wall 52 of the linear guide groove 5. A plurality of adjustment components 9 are provided to act on the connection position of each linear guide groove 5 and the arc guide groove 6. The adjustment component 9 is used to adjust the position of the outer arc groove wall 62 along the length direction of the outer linear wall. In other embodiments, the adjustment component 9 can be installed at one end of the guide rail body 1, that is, the arc guide groove 6 at one end is an adjustable structure, and the arc guide groove 6 and the linear guide groove 5 at the other end are locked and fixed.
[0038] The adjustment assembly 9 includes a guide seat 91 disposed on the outer side of the outer linear groove wall 52, a locking plate 95 fixed on the outer side of the outer arc groove, a guide rod 94 penetrating the guide seat 91 along the length direction of the outer linear groove wall 52, and a spring 92 sleeved on the outer periphery of the guide rod 94. A top piece 93 is installed on the outer periphery of the guide rod 94. The spring 92 is disposed between the guide seat 91 and the top piece 93 to pre-tighten the outer arc wall. The top piece 93 is specifically a nut, which is threadedly connected to the outer periphery of the guide rod 94.
[0039] The difference between the adjustment method of the annular guide rail in Example 2 and that in Example 1 is that: When the chain 34 becomes loose due to the increase in elongation, the preload force of the spring 92 acts on the guide rod 94 and the guide seat 91 through the top piece 93, so that the guide rod 94 can slide and drive the locking plate 95 to move to adjust the position of the outer arc wall, and at the same time, the distance between the two transmission shafts 31 increases accordingly, thereby achieving the purpose of automatic tensioning of the chain 34. The distance between the top piece 93 and the guide seat 91 is changed by regularly turning the nut, thereby adjusting the tightness of the spring 92, and adjusting the preload force of the spring 92 on the outer arc groove wall 62 according to the operating conditions. The difference between Example 3 and Example 2 is that: In Example 3, the adjustment component 9 is different from the adjustment component 9 of Example 2 in structure and working mode. Specifically, the adjustment component 9 of Example 3 includes a controller, a strain gauge installed and fixed on the chain 34, a cylinder installed on the outside of the outer linear groove wall 52, and a fixed block installed on the outer end of the outer arc groove wall 62. The extension and retraction direction of the cylinder is consistent with the length direction of the linear guide groove 5, and the controller is wirelessly connected to the strain gauge and the cylinder.
[0040] The difference between the adjustment method of the annular guide rail in Example 3 and that in Example 2 is that: When installing the chain 34, the controller controls the cylinder to contract to reduce the center distance of the outer arc groove wall 62, and the distance between the sprockets 32 on the two transmission shafts 31 is reduced. Then the staff puts the chain 34 on the two sprockets 32, and then the controller controls the cylinder to extend to increase the center distance of the outer arc groove wall 62 and tension the chain 34. When the chain 34 is in a tensioned state, the strain gauge detects that the strain value of the chain 34 reaches the normal working threshold, and the cylinder stops extending.
[0041] When the transmission mechanism 3 operates normally, it is maintained within the normal working threshold range. The strain gauge transmits the strain data to the controller. The controller converts the strain into a working signal through the signal processing unit and transmits it to the cylinder, so that the cylinder maintains the status quo.
[0042] When the strain gauge detects that the strain value of the chain 34 is lower than the normal working threshold, the strain gauge transmits the strain data to the controller. The controller converts the strain into a working signal through a signal processing unit and transmits it to the cylinder. After receiving the working signal, the cylinder begins to extend to increase the center distance of the outer arc groove wall 62 until the strain value reaches the normal working threshold and the cylinder stops extending.
[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A circular guide rail, characterized in that: The invention comprises a guide rail body (1), a moving body (4) sliding along the extending direction of the guide rail body (1), and a transmission mechanism (3) for driving the moving body (4) to circulate in the guide rail body (1); the moving body (4) is provided with a plurality of rollers (8), which are arranged in the guide rail body (1) and are arranged side by side along the moving direction of the moving body (4); the guide rail body (1) comprises two sections of linear guide grooves (5) and two circular arc guide grooves (6), the two circular arc guide grooves (6) are respectively connected to the two ends of the linear guide groove (5) to form an annular closed track, the outer side of the end of the outer linear groove wall (52) of the linear guide groove (5) is overlapped with the inner side of the outer circular arc groove wall (62) of the circular arc guide groove (6), and the inner side of the end of the outer linear groove wall (52) of the linear guide groove (5) is provided with a chamfered surface, which is inclined toward the inner side of the outer circular arc groove wall (62) of the circular arc guide groove (6).
2. The annular guide rail according to claim 1, characterized in that: The transmission mechanism (3) comprises two transmission shafts (31), sprockets (32) coaxially sleeved on the transmission shafts (31), a chain (34) sleeved between the two sprockets (32), and a driving member (33) for driving one of the transmission shafts (31) to rotate; the moving body (4) is connected to the chain (34); the two transmission shafts (31) are respectively fixedly connected to outer circular arc groove walls (62) of two circular arc guide grooves (6); and the outer circular arc groove walls (62) of the circular arc guide grooves (6) can be adjusted in position along the length direction of the outer linear groove walls (52) of the linear guide groove (5).
3. The annular guide rail according to claim 2, characterized in that: The outer arc groove wall (62) and the inner arc groove wall (61) of the arc guide groove (6) are detachable structures, and the inner arc groove wall (61) of the arc guide groove (6) is fixed and smoothly connected with the inner linear groove wall (51) of the linear guide groove (5).
4. The annular guide rail according to claim 2, characterized in that: An adjustment component (9) is provided between the outer circular arc groove wall (62) of the circular arc guide groove (6) and the outer linear groove wall (52) of the linear guide groove (5), and the adjustment component (9) is used to adjust the position of the outer circular arc groove wall (62) along the length direction of the outer linear wall.
5. The annular guide rail according to claim 4, characterized in that: The adjustment assembly (9) comprises a guide seat (91) arranged on the outside of the outer linear groove wall (52), a locking plate (95) arranged on the outside of the outer arc groove, a guide rod (94) penetrating the guide seat (91) along the length direction of the outer linear groove wall (52), and a spring (92) sleeved on the outer periphery of the guide rod (94); a top piece (93) is arranged on the outer periphery of the guide rod (94); and the spring (92) is arranged between the guide seat (91) and the top piece (93) to pre-tighten the outer arc wall.
6. The annular guide rail according to claim 5, characterized in that: The top member (93) is specifically a nut, and the nut is threadedly connected to the outer peripheral surface of the guide rod (94).
7. The annular guide rail according to claim 2, characterized in that: The annular guide rail also includes a positioning frame (2), the guide rail bodies (1) are two in total and symmetrically distributed on both sides of the positioning frame (2), a plurality of rollers (8) are disposed at both ends of the moving body (4) and respectively roll in the two guide rail bodies (1), the two guide rail bodies (1) are slidably connected to a sliding seat (7) on opposite sides, the end of the transmission shaft (31) is rotatably connected to the sliding seat (7), and the outer arc groove wall (62) is fixedly connected to the sliding seat (7).
8. A method for adjusting an annular guide rail according to any one of claims 2 to 7, characterized in that: The following steps are involved: When installing the annular guide rail, the positions of the outer arc groove walls (62) of the two arc guide grooves (6) are adjusted in a direction toward each other so as to reduce the center distance of the outer arc groove walls (62) of the two arc guide grooves (6), and then the chain (34) is sleeved on the two sprocket wheels (32), and then the positions of the outer arc groove walls (62) of the two arc guide grooves (6) are adjusted in a direction away from each other so as to tighten the chain (34); When the annular guide rail is in operation, the driving member (33) drives the moving body (4) to operate along the extension direction of the guide rail body (1); When the chain (34) becomes loose, the positions of the outer arc groove walls (62) of the two arc guide grooves (6) are adjusted in directions away from each other to tighten the chain (34).