A linear module slide structure

Abstract

The present invention discloses a linear module slide structure in the technical field of linear module transmission structure, comprising: a base and a slide table. Guide optical axes are provided on both the left and right sides of the base. Two guide wheel assemblies are provided on the lower side of the slide table, and the guide wheel assemblies include a plurality of guide groove wheels arranged in a front-to-back manner. The guide groove wheels are rotatably connected to the slide table, and the guide groove wheels of the two guide wheel assemblies are respectively in rolling contact with the guide optical axes on the left and right sides. A plurality of adjustment screws are arranged along the front-to-back arrangement of the side panels, wherein a part of the adjustment screws are threadedly inserted through the side panels and contact with the guide optical axis, and the remaining adjustment screws are movably inserted through the side panels and are threadedly connected with the guide optical axis. In the linear module slide structure of the present invention, the base provides a guide reference for the slide table through the guide optical axis, and the slide table realizes positioning and sliding guidance through the guide groove wheels and the guide optical axis, the friction between the slide table and the base is small, and the guide optical axis can realize straightness adjustment through the adjustment screws.

Description

Technical Field

[0001] The present invention relates to the technical field of linear module transmission structures, and in particular to a linear module slide structure. Background Art

[0002] Linear modules are also called linear modules, rectangular coordinate robots, linear slides, etc. Linear modules are widely used in various equipment and have made indispensable contributions to the development of automation equipment manufacturing. In the design, application and production of linear modules, product operation accuracy is a very important factor. In addition to the overall design of the product meeting the theoretical use accuracy, it is also necessary to take into account reliability, economy and convenience.

[0003] In traditional linear modules, the slide table and the slide rail are connected by linear guides to achieve high-precision sliding, so the running accuracy of the slide table depends largely on the accuracy of the linear guide rail itself. However, it is easy to form cumulative tolerances or errors between the slide table and the slide rail during the assembly process, which directly affects the assembly accuracy of the sliding linear module. The assembly requirements are very high, and repeated debugging and assembly are often required, which seriously affects the use efficiency of the linear module.

[0004] In addition, as in the utility model patent CN221921860U and the invention application CN118757510A, the slide and base of some linear modules are slidably matched through a slide groove structure between the two, but this structure has high requirements on the processing accuracy of the shape and size of the slide groove, and the production cost is relatively high; and there is relative sliding friction between the slide and the base, and the friction force is relatively large, which has a certain impact on the service life of the slide, drive response, etc.

[0005] In view of this, in some linear modules of the prior art, the slide and the base are slidably mounted through an optical axis and a sliding roller that cooperates with the optical axis. The optical axis guides and the rolling friction between the slide and the base is achieved through the sliding roller, which greatly reduces the friction during the use of the linear module and avoids the problems of reduced accuracy and increased noise in the slide as time goes by. However, this structure has very high requirements on the processing accuracy of the optical axis and its mounting structure. The straightness error of the optical axis is difficult to ensure by the processing accuracy of its mounting position, especially in some linear modules with longer strokes, the optical axis is easy to deform, resulting in reduced accuracy of the slide. Summary of the invention

[0006] The purpose of the present invention is to provide a linear module slide structure to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0007] The technical solutions adopted to solve the above technical problems are: A linear module slide structure, comprising: a base and a sliding table disposed on the upper side of the base. The base has two side plates arranged at intervals left and right. Both of the two side plates are provided with guide optical axes extending forward and backward. The lower side of the sliding table is provided with two guide wheel assemblies, and both of the two guide wheel assemblies are disposed between the guide optical axes of the left and right side plates; The guide wheel assembly includes a plurality of guide groove wheels arranged in a front-back arrangement. The guide groove wheels are rotatably connected to the sliding table. The guide groove wheels of the two guide wheel assemblies are respectively in rolling abutment with the guide optical axes on the left and right sides. The guide groove wheel has a guide groove extending circumferentially around its own rotation axis, and the guide optical axis has a guide portion embedded in the guide groove; A plurality of adjusting screws are arranged on the side plate in the front-back direction. A part of the adjusting screws are threadedly inserted through the side plate and abutted against the guide optical axis, and the remaining adjusting screws are movably inserted through the side plate and threadedly connected to the guide optical axis.

[0008] The linear module slide structure provided by the present invention has at least the following beneficial effects: The guide groove wheel and the guide optical axis can achieve the positioning between the sliding table and the base through the mutual embedding of the guide portion and the guide groove therebetween. The two guide optical axes arranged left and right can provide a positioning reference for the left and right sides of the sliding table. When the sliding table slides forward and backward relative to the base, the guide groove wheel rotates, so that rolling friction is realized between the sliding table and the base, the friction force is small, thereby reducing sliding wear and making the start-stop response of the sliding table rapid. The adjusting screw can be connected to the guide optical axis in two different ways. When the adjusting screw is screwed, the guide optical axis can be finely adjusted under the action of screw drive, so as to ensure the straightness error range of the guide optical axis in the length direction. In the linear module slide structure of the present invention, the base provides a guiding reference for the sliding table through the guide optical axis, the sliding table realizes positioning and sliding guiding through the guide groove wheel and the guide optical axis, and the friction force between the sliding table and the base is small. The straightness of the guide optical axis can be adjusted through the adjusting screw, greatly reducing the installation difficulty and the requirement for machining accuracy of the guide optical axis, and having higher applicability.

[0009] As a further improvement of the above technical solution, the cross section of the base is in a "U" shape. The opposite sides of the two side plates are provided with card slots, and the guide optical axes are respectively embedded in the card slots, and the guide portions are exposed outside the card slots.

[0010] As a further improvement of the above technical solution, each of the left and right sides of the base is provided with a guide optical axis. The two guide wheel assemblies correspond to the guide optical axes one by one, and the guide groove wheels of the two guide wheel assemblies are arranged错开前后设置。

[0011] As a further improvement of the above technical solution, the rotation axis of the guide groove wheel is arranged to be inclined with respect to the up-down direction, so that the guide groove wheel is arranged obliquely above the guide light axis.

[0012] As a further improvement of the above technical solution, in each of the guide wheel assemblies, at least two of the guide groove wheels are arranged obliquely, and the rotation axes of at least two of the guide groove wheels extend in the up-down direction.

[0013] As a further improvement of the above technical solution, the guide wheel assembly also includes a guide wheel shaft, the guide groove wheel is rotatably arranged at the lower end of the guide wheel shaft, and the upper end of the guide wheel shaft is adjustably connected to the sliding platform.

[0014] As a further improvement of the above technical solution, the sliding platform is provided with a strip-shaped adjustment hole, the strip-shaped adjustment hole extends along the radial direction of the guide groove wheel, and the end of the guide wheel shaft is adjustably embedded in the strip-shaped adjustment hole.

[0015] As a further improvement of the above technical solution, the sliding table is also provided with a strip mounting hole, the positions of the strip mounting hole and the strip adjustment hole are matched, the strip mounting hole is provided with a fastening screw, and the fastening screw passes through the strip mounting hole and is threadedly connected to the guide wheel shaft.

[0016] As a further improvement of the above technical solution, a limiting surface is provided at the end of the strip-shaped adjustment hole, a limiting portion corresponding to the limiting surface is provided at the end of the guide wheel shaft, the sliding table is removably provided with a pressure block, the pressure block has a clamping inclined surface, and the upper end of the guide wheel shaft is provided with a positioning inclined surface abutting against the clamping inclined surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments; Figure 1 This is a front view of an embodiment of the linear module slide structure provided by the present invention; Figure 2 This is a front cross-sectional view of an embodiment of the linear module slide structure provided by the present invention; Figure 3 This is a top cross-sectional view of an embodiment of the linear module slide structure provided by the present invention; Figure 4 This is a front cross-sectional view of an embodiment of the linear module slide structure provided by the present invention; Figure 5 This is a front cross-sectional view of an embodiment of the linear module slide structure provided by the present invention; Figure 6 This is a front cross-sectional view of an embodiment of the linear module slide structure provided by the present invention; Figure 7 yes Figure 6 A partial enlarged view of area A.

[0018] In the figure: 100-base, 110-guide optical axis, 111-guide part, 112-positioning part, 113-adjusting end face, 114-upper optical axis, 115-lower optical axis, 120-bottom plate, 130-side plate, 131-slot, 140-adjusting screw, 141-thrust screw, 142-tension screw, 200-sliding table, 210-sliding table body, 211-bar-shaped adjustment hole, 212-bar-shaped mounting hole, 220-pressing block, 221-pressing inclined surface, 300-guide wheel assembly, 310-guide groove wheel, 311-guide groove, 312-flat groove wheel, 313-bevel groove wheel, 320-guide wheel shaft, 321-limiting part, 322-positioning inclined surface. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood as not including the number, and above, below, within, etc. are understood as including the number.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] Reference Figures 1 to 7 The linear module slide structure of the present invention is implemented as follows: like Figure 1As shown, a linear module slide structure includes: a base 100 and a slide table 200. The slide table 200 is arranged on the upper side of the base 100. The base 100 has a sliding space extending forward and backward. Two guide wheel assemblies 300 are arranged on the lower side of the slide table 200. Both of the two guide wheel assemblies 300 are arranged in the sliding space. The two guide wheel assemblies 300 are connected to the base 100 for sliding forward and backward, so that the slide table 200 can slide forward and backward relative to the base 100.

[0024] The left and right sides of the sliding space are both provided with guide light shafts 110. The guide light shafts 110 are fixedly connected to the base 100. The two guide wheel assemblies 300 are arranged between the guide light shafts 110 arranged on the left and right sides.

[0025] The guide wheel assembly 300 includes a plurality of guide groove wheels 310. The guide groove wheels 310 are arranged in a front-to-back arrangement. The guide groove wheels 310 are rotatably connected to the slide table 200. The guide groove wheels 310 of the two guide wheel assemblies 300 are respectively in rolling contact with the guide optical axis 110 on the left and right sides.

[0026] The outer circumference of the guide groove wheel 310 is provided with a guide groove 311 . The guide groove 311 extends circumferentially around the rotation axis of the guide groove wheel 310 . The guide optical axis 110 has a guide portion 111 embedded in the guide groove 311 .

[0027] In actual use, the guide groove wheel 310 and the guide optical axis 110 are mutually embedded through the guide portion 111 and the guide groove 311 therebetween to achieve positioning between the sliding table 200 and the base 100. The two guide optical axes 110 arranged on the left and right can provide positioning references for the left and right sides of the sliding table 200. When the sliding table 200 slides back and forth relative to the base 100, the guide groove wheel 310 rotates to achieve rolling friction between the sliding table 200 and the base 100, and the friction force is small, thereby reducing sliding wear and making the start and stop response of the sliding table 200 fast. In the linear module slide structure of the present invention, the base 100 provides a guide reference for the sliding table 200 through the guide optical axis 110, and the sliding table 200 achieves positioning and sliding guidance through the guide groove wheel 310 and the guide optical axis 110, and the friction force between the sliding table 200 and the base 100 is small.

[0028] Reference Figure 2, in some embodiments, the cross-section of the base 100 is in a "U" shape, and the base 100 includes a bottom plate 120 and side plates 130. Side plates 130 are provided on both the left and right sides of the bottom plate 120. The sliding space is provided between the two side plates 130. The cross-section of the base 100 specifically refers to the cross-section obtained when the base 100 is intersected by a plane perpendicular to the length direction of the base 100. On the opposite sides of the two side plates 130, clamping grooves 131 are provided, and the guiding optical axes 110 are respectively embedded in the clamping grooves 131.

[0029] The base 100 of the above embodiment is an integrally formed part, and the bottom plate 120 and the side plates 130 are integrally formed. In actual use, end plates are provided at both the front and rear ends of the base 100. The end plates are fixedly connected to the front and rear ends of the base 100, defining the front and rear ends of the sliding space. In some other embodiments, the base 100 may be a split structure, and the sliding space is formed by fixing the bottom plate 120 and the two side plates 130 to each other.

[0030] For a linear module, the length dimension of the base 100 is relatively large, and the length dimensions of the guiding optical axes 110 and the clamping grooves 131 are also relatively large. Therefore, the guiding optical axes 110 and the clamping grooves 131 are in clearance fit rather than interference fit or transition fit. Otherwise, the assembly resistance between the clamping grooves 131 and the guiding optical axes 110 is too large, and the assembly difficulty is high. In this embodiment, to ensure the straightness tolerance of the front and rear sliding of the sliding table 200, the base 100 is provided with a plurality of adjusting screws 140 for adjusting the straightness of the guiding optical axes 110.

[0031] As Figure 3 shown, specifically, the adjusting screws 140 are arranged in the front and rear directions on the side plates 130. Some of the adjusting screws 140 are threadedly inserted through the side plates 130 and abutted against the guiding optical axes 110, and some of the adjusting screws 140 are movably inserted through the side plates 130 and threadedly connected to the guiding optical axes 110. The above two types of adjusting screws 140 are respectively a thrust screw 141 and a tension screw 142.

[0032] The adjustment screws 140 on the two side panels 130 are arranged opposite to each other in the left-right direction. When the thrust screw 141 is rotated, the thrust screw 141 moves inward relative to the side panel 130 under the action of the thread transmission, thereby tightening the guide light axis 110 inward and adjusting it in the direction close to the other side panel 130. When the tension screw 142 is rotated, the guide light axis 110 is pulled outward by the thread transmission to achieve adjustment in the direction away from the other side panel 130. It is worth noting that the inner and outer directions mentioned here specifically refer to the side where the two side panels 130 face each other as the inner side, and the side where the two side panels 130 face away from each other as the outer side. In actual use, the thrust screw 141 and the tension screw 142 are arranged in sequence in the front-to-back direction, and the straightness error of the guide light axis 110 is adjusted by the mutual cooperation of the thrust screw 141 and the tension screw 142.

[0033] Further, the guide light axis 110 is provided with a plurality of adjustment end faces 113. The adjustment end faces 113 are perpendicular to the radial direction of the guide light axis 110. The plurality of adjustment end faces 113 are arranged in the front-to-back direction and correspond to the adjustment screws 140 one by one. The end of the thrust screw 141 abuts against the corresponding adjustment end face 113, and the adjustment end face 113 corresponding to the tension screw 142 is provided with a screw hole threadedly connected to the tension screw 142.

[0034] The cross-sections of the guide groove 311 and the guide portion 111 are both circular. In some embodiments, the guide light axis 110 is cylindrical, and the clamping groove 131 is a cylindrical through groove that runs through the front and back. The clamping groove 131 is open toward one side of the sliding space, and the portion of the guide light axis 110 exposed in the clamping groove 131 is the guide portion 111. The guide groove 311 is an arc groove, and the arc profile diameter of the cross-section of the guide groove 311 is consistent with the outer diameter of the guide light axis 110, so that the guide portion 111 can be embedded in the guide groove 311.

[0035] like Figure 4 As shown, in some other embodiments, the guide light axis 110 further includes a positioning portion 112 embedded in the card slot 131. The lower end of the positioning portion 112 is in a planar shape extending forward and backward. The card slot 131 has a groove bottom corresponding to the lower end of the positioning portion 112. The lower end of the positioning portion 112 fits with the groove bottom of the card slot 131 to ensure the error of the guide light axis 110 in the up and down directions, thereby controlling the up and down jump error when the sliding table 200 slides forward and backward. When the guide light axis 110 is adjusted by the adjusting screw 140, the lower end of the positioning portion 112 can always fit with the groove bottom of the card slot 131. The guide portion 111 and the adjusting screw 140 are respectively arranged on the left and right sides of the positioning portion 112.

[0036] In actual use, the width of the base 100 is limited, and there is a situation where the outer diameter of the guide groove wheel 310 is larger than 1 / 2 of the width of the sliding space. In order to avoid interference between the left and right guide wheel assemblies 300, in some embodiments, the guide groove wheels 310 of the left and right guide wheel assemblies 300 are staggered front and back, so that the two guide wheel assemblies 300 can maintain a small distance.

[0037] It is worth noting that, among the two guide wheel assemblies 300, at least one of the guide wheel assemblies 300 has more than two guide groove wheels 310. That is, the sum of the guide groove wheels 310 of the two guide wheel assemblies 300 is at least three. At least three guide groove wheels 310 are respectively connected to the two guide optical axes 110 in a rolling manner to achieve sliding guidance. In a further embodiment, in order to make the force of the sliding platform 200 more uniform, the number of guide groove wheels 310 of each guide wheel assembly 300 is an even number. The guide groove wheels 310 are arranged in pairs along the front and back.

[0038] In some embodiments, the rotation axis of the guide groove wheel 310 extends in the up-down direction. The guide groove wheel 310 and the guide optical axis 110 are arranged in a left-right manner. In this embodiment, the positioning accuracy of the guide groove wheel 310 in the left-right direction is high, but the contact between the guide groove wheel 310 and the guide optical axis 110 in the up-down direction is small, so the load capacity is weak.

[0039] like Figure 5 As shown, in a further embodiment, the rotation axis of the guide groove wheel 310 is inclined with respect to the up-down direction, so that the guide groove wheel 310 is inclinedly arranged at the upper part of the sliding space. Figure 5 The guide groove wheels 310 of the two guide wheel assemblies 300 are arranged symmetrically and tilted, and the load of the slide table 200 can be divided into a force component in the up-down direction and a force component in the left-right direction. The two guide wheel assemblies 300 can offset the force components in the left-right direction. The contact between the guide groove wheels 310 arranged tilted and the guide optical axis 110 is increased, thereby enhancing the load capacity in the up-down direction.

[0040] The guide groove wheel 310 extending in the vertical direction with the rotation axis is a flat groove wheel 312, and the guide groove wheel 310 arranged at an angle is an inclined groove wheel 313. In some other embodiments, each of the guide wheel assemblies 300 includes at least two inclined groove wheels 313 and at least two flat groove wheels 312. The inclined groove wheels 313 arranged in pairs improve the load bearing capacity between the guide groove wheel 310 and the guide light axis 110, and the flat groove wheels 312 arranged in pairs can ensure the positioning accuracy in the left and right directions, and at the same time can reduce the runout error of the sliding table 200, and prevent the inclined groove wheel 313 from being released from contact with the guide light axis 110 and disengaging.

[0041] To facilitate the assembly of the sliding platform 200 and the base 100 , in some embodiments, the guide groove wheel 310 is adjustably disposed on the sliding platform 200 .

[0042] Specifically, Figure 6 and Figure 7 As shown, the slide 200 includes a slide body 210 and a pressing block 220, and the guide wheel assembly 300 includes a guide wheel shaft 320. The guide wheel shaft 320 is arranged in a one-to-one correspondence with the guide groove wheel 310. The guide groove wheel 310 is rotatably arranged at the lower end of the guide wheel shaft 320, and the upper end of the guide wheel shaft 320 is adjustably connected to the slide body 210 to achieve the connection between the guide groove wheel 310 and the slide body 210. The guide groove wheel 310 is rotatably installed on the lower end of the guide wheel shaft 320 through a high-precision bearing, and the upper end of the guide wheel shaft 320 is adjustable to the slide body 210, so as to change the position of the guide groove wheel 310. During the installation process, the guide groove wheel 310 can avoid the guide optical axis 110, which is convenient for assembly.

[0043] The slide body 210 of this embodiment is provided with a strip-shaped adjustment hole 211, which extends in the radial direction of the guide groove wheel 310, and the upper end of the guide wheel shaft 320 is adjustably embedded in the strip-shaped adjustment hole 211. The upper end of the guide wheel shaft 320 is guided by the strip-shaped adjustment hole 211, so that the guide groove wheel 310 can be adjusted in position in the radial direction.

[0044] The slide body 210 is also provided with a strip mounting hole 212. A fastening screw is provided in the strip mounting hole 212, and the fastening screw passes through the strip mounting hole 212 and is threadedly connected to the guide wheel shaft 320. The strip mounting hole 212 and the strip adjustment hole 211 are matched in position so that the fastening screw can lock the guide wheel shaft 320. In actual use, the head of the fastening screw is arranged in the strip mounting hole 212, and the fastening screw passes through the slide body 210 and is threadedly connected to the end of the guide wheel shaft 320 arranged in the strip adjustment hole 211, so that the end of the guide wheel shaft 320 is locked in the strip adjustment hole 211, thereby achieving the fixation of the guide wheel assembly 300 and the slide body 210.

[0045] Furthermore, in order to improve the positioning accuracy of the guide wheel shaft 320 and the guide groove wheel 310 when they are locked and fixed, a limiting surface is provided at the end of the strip-shaped adjustment hole 211, and a limiting portion 321 corresponding to the limiting surface is provided at the end of the guide wheel shaft 320. The pressing block 220 is detachably arranged on the slide body 210. The pressing block 220 has a pressing inclined surface 221, and a positioning inclined surface 322 abutting against the pressing inclined surface 221 is provided at the end of the guide wheel shaft 320.

[0046] The lower end of the guide wheel shaft 320 is cylindrical, and the guide groove wheel 310 is rotatably sleeved on the lower end of the guide wheel shaft 320. The upper end of the guide wheel shaft 320 is block-shaped, and the limit portion 321 and the positioning inclined surface 322 are respectively arranged on the left and right sides of the upper end of the guide wheel shaft 320. The slide body 210 is provided with a mounting groove for the pressure block 220 to be embedded. The pressure block 220 is locked with the slide body 210 by screws to achieve a detachable connection.

[0047] In actual use, when the pressing block 220 is fixedly installed on the slide body 210, the guide wheel shaft 320 can be pressed by the cooperation of the pressing inclined surface 221 and the positioning inclined surface 322, so that the limiting portion 321 of the guide wheel shaft 320 can be pressed against the limiting surface, thereby ensuring the positioning accuracy of the guide wheel shaft 320.

[0048] exist Figure 6 In the embodiment shown, the slide body 210 is in the shape of a rectangular plate, the strip-shaped mounting hole 212 and the strip-shaped adjustment hole 211 are matched in position, and the strip-shaped mounting hole 212 and the strip-shaped adjustment hole 211 are respectively arranged at the upper and lower sides of the slide body 210. The end of the guide wheel shaft 320 is embedded in the strip-shaped adjustment hole 211, so the pressing block 220 needs to be arranged at the lower side of the slide body 210 so that the pressing inclined surface 221 can press against the positioning inclined surface 322.

[0049] In some other embodiments, the strip-shaped adjustment hole 211 is provided on the upper side of the slide body 210, and an avoidance space is provided on the lower side of the strip-shaped adjustment hole 211. The upper end of the guide wheel shaft 320 is embedded in the strip-shaped adjustment hole 211, and the middle part of the guide wheel shaft 320 is penetrated in the avoidance space, so that the guide groove wheel 310 is provided on the lower side of the slide body 210. The strip-shaped mounting holes 212 are arranged in parallel beside the strip-shaped adjustment holes 211, and the guide wheel shaft 320 has a mounting portion arranged in the strip-shaped mounting holes 212, and the mounting portion is locked and fixed to the slide body 210 in the strip-shaped mounting holes 212 by screws and nuts. The strip-shaped adjustment hole 211 is provided on the upper side of the slide body 210, so that the pressure block 220 can also be provided on the upper side of the slide body 210, thereby facilitating adjustment and locking, and the maintenance and disassembly of the slide 200 is more convenient.

[0050] Based on the above-mentioned multiple embodiments, the linear module slide structure of the present invention includes but is not limited to the following multiple specific implementations. Specific implementation method one: The cross section of the guide light axis 110 is circular, and the guide light axis 110 is in the shape of a long cylindrical strip. There are two guide light axes 110, and the two guide light axes 110 are respectively arranged on the left and right sides of the base 100. The clamping groove 131 is arranged on the side of the side plate 130 close to the sliding space. The cross section of the clamping groove 131 is circular, and the cross-sectional radius of the clamping groove 131 is greater than the distance between its center and the inner edge of the side plate 130, so that one side of the guide light axis 110 is embedded in the clamping groove 131, and the other side is exposed in the clamping groove 131, and the side embedded in the clamping groove 131 is larger than the side exposed in the clamping groove 131, so as to prevent the guide light axis 110 from falling off from the clamping groove 131 in the radial direction. The part of the guide light axis 110 exposed outside the clamping groove 131 is the guide part 111. The guide groove 311 of the guide groove wheel 310 rolls against the guide part 111. The guide wheel shaft 320 is fixedly mounted on the sliding platform 200 or is integrally formed with the sliding platform 200 .

[0052] like Figure 1 As shown, in the linear module slide structure of the first embodiment, the processing difficulty of the guide optical axis 110 and the base 100 is relatively low, and the production cost of the linear module is low. During the assembly process, the guide grooves 311 of the guide groove wheels 310 on the left and right sides are first matched with the two guide optical axes 110 respectively, so that the guide groove wheels 310 and the sliding space are aligned front and back, and then the guide groove wheels 310 installed on the lower side of the sliding table 200 are inserted into the sliding space through the front end or rear end of the base 100 to realize the sliding assembly of the sliding table 200 and the base 100. Specific implementation method 2: Two guide light axes 110 are respectively arranged on the left and right sides of the base 100. The two guide light axes 110 on the same side are arranged in a high and low arrangement. The two guide light axes 110 arranged in a high and low arrangement on the same side are respectively an upper light axis 114 and a lower light axis 115, and the central axis of the upper light axis 114 is higher than the central axis of the lower light axis 115. The guide wheel assembly 300 includes two flat groove wheels 312 and two inclined groove wheels 313. The guide grooves 311 of the two flat groove wheels 312 are both in rolling contact with the upper light axis 114. The guide grooves 311 of the two inclined groove wheels 313 are both in rolling contact with the lower light axis 115.

[0054] like Figure 5 and Figure 6 As shown, in the linear module slide structure of the second specific embodiment, two guide light axes 110 are respectively provided on the left and right sides of the base 100. The flat groove wheel 312 and the bevel groove wheel 313 in the guide wheel assembly 300 can correspond to the two guide light axes 110 arranged at different heights, so that the flat groove wheel 312 and the bevel groove wheel 313 are staggered with each other in the height direction, reducing the requirements for the vertical dimension of the sliding space and avoiding the situation where the thickness specification of the linear module is large.

[0055] Based on the linear module slide structure of the second specific implementation, the present invention provides a third specific implementation: Each of the inclined groove wheels 313 or the flat groove wheels 312 is rotatably mounted on one of the guide wheel shafts 320 in a one-to-one correspondence. In the two guide wheel assemblies 300 arranged in the left and right, the guide wheel shafts 320 on which the inclined groove wheels 313 are mounted are both fixedly connected to the slide body 210. In one of the guide wheel assemblies 300, the guide wheel shaft 320 on which the flat groove wheels 312 are mounted is fixedly connected to the slide body 210, and in the other guide wheel assembly 300, the guide wheel shaft 320 on which the flat groove wheels 312 are mounted is adjustably connected to the slide body 210 in the left and right directions.

[0056] In the linear module slide structure of the third embodiment, in the two guide wheel assemblies 300 on the left and right sides, the flat groove wheel 312 is in rolling contact with the upper optical axis 114, and the bevel groove wheel 313 is in rolling contact with the lower optical axis 115. The flat groove wheel 312 and the bevel groove wheel 313 of one of the guide wheel assemblies 300 are both fixedly connected to the slide body 210, thereby avoiding unnecessary installation errors of the guide wheel assembly 300 during assembly. The bevel groove wheel 313 of the other guide wheel assembly 300 is fixedly connected to the slide body 210, and the flat groove wheel 312 is adjustably connected to the slide body 210 in the left and right directions.

[0057] Specifically, refer to Figure 6and Figure 7 The guide wheel shaft 320 arranged on the right side is fixedly connected to the slide body 210, and the guide wheel shaft 320 arranged on the left side and equipped with a flat groove wheel 312 is adjustably connected to the slide body 210.

[0058] During the assembly process of the sliding table 200 and the base 100: first, loosen the screws connecting the pressing block 220 and the fastening screws in the strip-shaped mounting hole 212, so that the pressing inclined surface 221 of the pressing block 220 is separated from the positioning inclined surface 322 of the guide wheel shaft 320, and the upper end of the guide wheel shaft 320 can slide to the right along the strip-shaped adjustment hole 211, so that the flat groove wheel 312 arranged on the left side can avoid to the right. Then, the sliding table 200 is placed from top to bottom on the upper side of the base 100. During the placement process, the right side of the sliding table 200 is tilted downward so that the right guide wheel assembly 300 can be positioned first, and the right inclined groove wheel 313 and the flat groove wheel 312 are respectively abutted against the lower optical axis 115 and the upper optical axis 114 on the right side. Then, the left side of the sliding platform 200 is turned downward, so that the inclined groove wheel 313 arranged on the left side is in contact with the lower optical axis 115 arranged on the left side. After that, the screws connected to the pressing block 220 and the fastening screws in the strip mounting hole 212 are tightened alternately. When the screws connected to the pressing block 220 are tightened, the pressing block 220 is locked upward to press the positioning inclined surface 322 through the pressing inclined surface 221, so that the upper end of the guide wheel shaft 320 moves to the left, so that the limiting portion 321 is pressed against the limiting surface at the end of the strip adjustment hole 211. At this time, the flat groove wheel 312 arranged on the left side is in contact with the upper optical axis 114 on the left side, realizing the positioning and anti-jumping clamping in the left and right directions, and then the guide wheel shaft 320 is locked and fixed by the fastening screws to complete the sliding assembly of the sliding platform 200 and the base 100.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described, a person skilled in the art may make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of the present invention. These changes, modifications, equivalent variations or substitutions are all included in the scope defined by the claims of this application. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A linear module slide structure, comprising: A base and a sliding table disposed on the upper side of the base, characterized in that: the base has two side plates arranged at intervals left and right, and both of the two side plates are provided with guiding optical axes extending forward and backward, and the lower side of the sliding table is provided with two guide wheel assemblies, and both of the two guide wheel assemblies are disposed between the guiding optical axes of the left and right side plates; The guide wheel assembly includes a plurality of guiding grooved pulleys arranged in a front-back row, the guiding grooved pulleys are rotatably connected to the sliding table, and the guiding grooved pulleys of the two guide wheel assemblies are respectively in rolling contact with the guiding optical axes on the left and right sides; the guiding grooved pulley has a guiding groove extending circumferentially around its own rotation axis, and the guiding optical axis has a guiding portion embedded in the guiding groove; A plurality of adjusting screws are arranged on the side plate in a front-back arrangement, and a part of the adjusting screws are threadedly inserted through the side plate and abutted against the guiding optical axis, and the remaining adjusting screws are movably inserted through the side plate and threadedly connected to the guiding optical axis.

2. The linear module slide structure according to claim 1, characterized in that: The cross section of the base is in a "U" shape, and clamping grooves are provided on the opposite sides of the two side plates, and the guiding optical axes are respectively embedded in the clamping grooves in a one-to-one correspondence, and the guiding portions are exposed outside the clamping grooves.

3. The linear module slide structure according to claim 1, characterized in that: One guiding optical axis is provided on each of the left and right sides of the base, the two guide wheel assemblies correspond to the guiding optical axes one by one, and the guiding grooved pulleys of the two guide wheel assemblies are arranged in a front-back stagger.

4. The linear module slide structure according to claim 1, characterized in that: The rotation axis of the guiding grooved pulley is inclined with respect to the up-down direction, so that the guiding grooved pulley is disposed obliquely above the guiding optical axis.

5. The linear module slide structure according to claim 4, characterized in that: In each guide wheel assembly, at least two of the guiding grooved pulleys are inclined, and the rotation axes of at least two of the guiding grooved pulleys extend in the up-down direction.

6. The linear module slide structure according to claim 1, characterized in that: The guide wheel assembly further includes a guide wheel shaft member, the guiding grooved pulley is rotatably disposed at the lower end of the guide wheel shaft member, and the upper end of the guide wheel shaft member is adjustably connected to the sliding table.

7. The linear module slide structure according to claim 6, characterized in that: The sliding table is provided with a strip-shaped adjusting hole, the strip-shaped adjusting hole extends along the radial direction of the guiding grooved pulley, and the end of the guide wheel shaft member is adjustably embedded in the strip-shaped adjusting hole.

8. The linear module slide structure according to claim 7, characterized in that: The sliding table is further provided with a strip-shaped mounting hole, the strip-shaped mounting hole and the strip-shaped adjusting hole are in a matching position, and the strip-shaped mounting hole is provided with a fastening screw, and the fastening screw passes through the strip-shaped mounting hole and is threadedly connected to the guide wheel shaft member.

9. The linear module slide structure according to claim 7, characterized in that: A limiting surface is provided at the end of the strip-shaped adjusting hole, a limiting portion corresponding to the limiting surface is provided at the end of the guide wheel shaft member, a pressing block is detachably arranged on the sliding table, the pressing block has a pressing inclined surface, and a positioning inclined surface abutted against the pressing inclined surface is provided at the upper end of the guide wheel shaft member.

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