A linear module slide structure

Abstract

The present invention discloses a linear module slide structure in the technical field of linear module transmission structures, comprising: a base and a sliding 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 sliding table, and each guide wheel assembly includes a plurality of guide groove wheels arranged in the front and back. The guide groove wheels are rotatably connected to the sliding 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 adjusting screws are arranged along the front and back of the side plate, and 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. 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 guidance with the guide optical axis through the guide groove wheels, the friction between the sliding table and the base is small, and the straightness of the guide optical axis can be adjusted through the adjusting screws.

Description

Technical Field

[0001] The present invention relates to the technical field of linear module drive structures, and particularly to a linear module slide table structure. Background Art

[0002] A linear module is also known as a linear module, a Cartesian robot, a linear slide table, etc. Linear modules are widely used in various devices and have made an indispensable contribution to the development of automated equipment manufacturing. In the design, application, and production of linear modules, the running accuracy of the product is a very important factor. Among them, in addition to the overall design of the product meeting the theoretical use accuracy, reliability, economy, and convenience also need to be considered.

[0003] In traditional linear modules, high-precision sliding fitting between the slide table and the slide rail is achieved through linear guide rails. Therefore, the running accuracy of the slide table largely depends on the accuracy of the linear guide rails themselves. However, cumulative tolerances or errors are easily formed during the assembly process of the slide table and the slide rail, directly affecting the assembly accuracy of the sliding linear module, with high assembly requirements, often requiring repeated debugging and assembly, seriously affecting the use efficiency of the linear module.

[0004] In addition, as in the utility model patent CN221921860U and the invention application CN118757510A, there are some linear module slide tables and bases that achieve sliding fitting through the chute structure between the two. However, this structure has high processing accuracy requirements for the shape and size of the chute, resulting in high production costs; and there is relative sliding friction between the slide table and the base, with relatively large frictional force, which has a certain impact on the service life, drive response, etc. of the sliding table.

[0005] In view of this, in some linear modules of the prior art, the slide table and the base are slidably fitted through a light shaft and a sliding roller that cooperates with the light shaft. The light shaft is used for guiding and rolling friction is achieved between the slide table and the base through the sliding roller, greatly reducing the frictional force during the use of the linear module and avoiding problems such as easy accuracy decline and increased noise of the chute over time. However, this structure has very high processing accuracy requirements for the light shaft and its installation structure. It is difficult to ensure the straightness error of the light shaft through the processing accuracy of its installation position. Especially in some linear modules with longer strokes, the light shaft is prone to deformation, resulting in a reduction in the accuracy of the slide table. Summary of the Invention

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

[0007] The technical solution adopted to solve the above technical problems:

[0008] A linear module slide structure, comprising: a base and a sliding table provided 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 arranged between the guide optical axes of the left and right side plates;

[0009] The guide wheel assembly includes a plurality of guide groove wheels arranged in the front and rear. 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 contact 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;

[0010] A plurality of adjusting screws are arranged on the side plate in the front and rear arrangement. 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.

[0011] 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 realize the positioning between the sliding table and the base through the mutual embedding of the guide portion and the guide groove between the two. 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 and 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 guidance 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.

[0012] 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 clamping grooves, and the guide optical axes are respectively embedded in the clamping grooves, and the guide portions are exposed outside the clamping grooves.

[0013] 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, and the two guide wheel assemblies correspond to the guide optical axes one by one. The guide groove wheels of the two guide wheel assemblies are arranged staggeredly in the front and rear.

[0014] As a further improvement of the above technical solution, the rotation axis of the guide sheave is inclined with respect to the vertical direction, so that the guide sheave is disposed obliquely above the guide optical axis.

[0015] As a further improvement of the above technical solution, in each of the guide wheel assemblies, at least two of the guide sheaves are inclined, and the rotation axes of at least two of the guide sheaves extend in the vertical direction.

[0016] As a further improvement of the above technical solution, the guide wheel assembly further includes a guide wheel shaft member, the guide sheave 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.

[0017] As a further improvement of the above technical solution, the sliding table is provided with a strip-shaped adjustment hole extending in the radial direction of the guide sheave, and the end of the guide wheel shaft member is adjustably embedded in the strip-shaped adjustment hole.

[0018] As a further improvement of the above technical solution, the sliding table is further provided with a strip-shaped mounting hole, the strip-shaped mounting hole and the strip-shaped adjustment hole are adapted in position, 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.

[0019] 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 member, the sliding table is detachably provided with a pressing block, 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. Description of the Drawings

[0020] The present invention will be further described below with reference to the drawings and embodiments;

[0021] Figure 1 is a front view of an embodiment of the linear module sliding table structure provided by the present invention;

[0022] Figure 2 is a front cross-sectional view of an embodiment of the linear module sliding table structure provided by the present invention;

[0023] Figure 3 is a bottom cross-sectional view of an embodiment of the linear module sliding table structure provided by the present invention;

[0024] Figure 4 is a front cross-sectional view of an embodiment of the linear module sliding table structure provided by the present invention;

[0025] Figure 5 is a front cross-sectional view of an embodiment of the linear module sliding table structure provided by the present invention;

[0026] Figure 6 is a front cross-sectional view of a linear module slide structure provided by the present invention in one embodiment;

[0027] Figure 7 is Figure 6 a partial enlarged view of area A in

[0028] In the figure: 100 - base, 110 - guiding optical axis, 111 - guiding part, 112 - positioning part, 113 - adjusting end face, 114 - upper optical axis, 115 - lower optical axis, 120 - bottom plate, 130 - side plate, 131 - clamping groove, 140 - adjusting screw, 141 - thrust screw, 142 - tension screw, 200 - sliding table, 210 - slide body, 211 - strip-shaped adjusting hole, 212 - strip-shaped mounting hole, 220 - pressing block, 221 - pressing inclined surface, 300 - guide wheel assembly, 310 - guiding groove wheel, 311 - guiding groove, 312 - flat groove wheel, 313 - inclined groove wheel, 320 - guide wheel shaft part, 321 - limiting part, 322 - positioning inclined surface. Detailed implementation manners

[0029] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that for orientation descriptions, such as up, down, front, back, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

[0031] In the description of the present invention, if there are descriptions with words such as "several", its meaning is one or more, and the meaning of multiple is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number.

[0032] In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0033] Referring to Figures 1 to 7 , the following embodiments are made for the linear module slide structure of the present invention:

[0034] As Figure 1As shown in the figure, a linear module slide structure includes: a base 100 and a slide table 200. The slide table 200 is disposed on the upper side of the base 100. The base 100 has a sliding space extending front and rear. Two guide wheel assemblies 300 are provided on the lower side of the slide table 200. Both of the two guide wheel assemblies 300 are disposed in the sliding space. The two guide wheel assemblies 300 are slidably connected to the base 100 in the front and rear directions, so that the slide table 200 can slide relative to the base 100 in the front and rear directions.

[0035] Guide optical axes 110 are provided on both the left and right sides of the sliding space. The guide optical axes 110 are fixedly connected to the base 100. The two guide wheel assemblies 300 are disposed between the guide optical axes 110 arranged left and right.

[0036] The guide wheel assembly 300 includes a plurality of guide groove wheels 310. The guide groove wheels 310 are arranged in the front and rear directions. 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 axes 110 on the left and right sides.

[0037] A guide groove 311 is provided on the outer periphery of the guide groove wheel 310. The guide groove 311 extends circumferentially around the rotation axis of the guide groove wheel 310 itself. The guide optical axis 110 has a guide portion 111 embedded in the guide groove 311.

[0038] 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 realize the positioning between the slide table 200 and the base 100. The two guide optical axes 110 arranged left and right can provide a positioning reference for the left and right sides of the slide table 200. When the slide table 200 slides relative to the base 100 in the front and rear directions, the guide groove wheel 310 rotates, so that rolling friction is realized between the slide table 200 and the base 100, the friction force is small, thereby reducing sliding wear and enabling the slide table 200 to start and stop quickly. In the linear module slide structure of the present invention, the base 100 provides a guiding reference for the slide table 200 through the guide optical axis 110, the slide table 200 realizes positioning and sliding guidance through the guide groove wheel 310 and the guide optical axis 110, and the friction force between the slide table 200 and the base 100 is small.

[0039] Refer to 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, card slots 131 are provided, and the guiding optical axes 110 are respectively embedded in the card slots 131.

[0040] 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 the mutual fixation of the bottom plate 120 and the two side plates 130.

[0041] For the linear module, the length dimension of the base 100 is relatively large, and the length dimensions of the guiding optical axes 110 and the card slots 131 are also relatively large. Therefore, the guiding optical axes 110 and the card slots 131 adopt a clearance fit rather than an interference fit or a transition fit. Otherwise, the assembly resistance between the card slots 131 and the guiding optical axes 110 is too large, and the assembly difficulty is high. In this embodiment, in order 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.

[0042] 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 abut against the guiding optical axes 110, and some of the adjusting screws 140 are movably inserted through the side plates 130 and are 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.

[0043] The adjusting screws 140 on the two side plates 130 are arranged facing each other in the left - right direction. When the thrust screw 141 is rotated, under the action of screw drive, the thrust screw 141 moves inwards relative to the side plate 130, thereby tightly pressing the guiding optical axis 110 inwards and adjusting it towards the direction close to the other side plate 130. When the pulling screw 142 is rotated, the guiding optical axis 110 is pulled outwards through screw drive, realizing the adjustment in the direction away from the other side plate 130. It should be noted that the inner and outer directions mentioned here specifically refer to that the side where the two side plates 130 face each other is the inner side, and the side where the two side plates 130 face away from each other is the outer side. In actual use, the thrust screw 141 and the pulling screw 142 are arranged at intervals in the front - back direction, and the straightness error of the guiding optical axis 110 is adjusted through the mutual cooperation of the thrust screw 141 and the pulling screw 142.

[0044] Furthermore, a plurality of adjusting end faces 113 are provided on the guiding optical axis 110. The adjusting end faces 113 are perpendicular to the radial direction of the guiding optical axis 110. The plurality of adjusting end faces 113 are arranged in the front - back direction and respectively correspond to the adjusting screws 140 one by one. The end of the thrust screw 141 abuts against the corresponding adjusting end face 113, and a screw hole for threadedly connecting with the pulling screw 142 is provided on the adjusting end face 113 corresponding to the pulling screw 142.

[0045] The cross - sections of the guiding groove 311 and the guiding portion 111 are both circular. In some embodiments, the guiding optical axis 110 is in the shape of a cylinder, and the card slot 131 is a cylindrical through - slot that penetrates in the front - back direction. The side of the card slot 131 facing the sliding space is open, and the part of the guiding optical axis 110 exposed outside the card slot 131 is the guiding portion 111. The guiding groove 311 is an arc groove, and the diameter of the arc contour of the cross - section of the guiding groove 311 is the same as the outer diameter of the guiding optical axis 110, so that the guiding portion 111 can be embedded in the guiding groove 311.

[0046] As Figure 4 shown, in some other embodiments, the guiding optical axis 110 further includes a positioning portion 112 embedded in the card slot 131. The lower end of the positioning portion 112 is in the shape of a plane extending in the front - back direction. The card slot 131 has a slot bottom corresponding to the lower end of the positioning portion 112. The lower end of the positioning portion 112 fits with the slot bottom of the card slot 131 to ensure the error of the guiding optical axis 110 in the up - down direction, thereby controlling the up - down jumping error when the sliding table 200 slides back and forth. When the guiding optical axis 110 is adjusted by the adjusting screw 140, the lower end of the positioning portion 112 can always fit with the slot bottom of the card slot 131. The guiding portion 111 and the adjusting screw 140 are respectively arranged on the left and right sides of the positioning portion 112.

[0047] During actual use, there are limitations on the width dimension of the base 100, and there is a situation where the outer diameter of the guide groove wheel 310 is greater than half of the width of the sliding space. To avoid interference and obstruction between the left and right guide wheel assemblies 300, in some embodiments, in the left and right guide wheel assemblies 300, the guide groove wheels 310 are arranged staggeredly front and back, so that the two guide wheel assemblies 300 can maintain a relatively small spacing.

[0048] It is worth noting that among the two guide wheel assemblies 300, the number of guide groove wheels 310 of at least one guide wheel assembly 300 is more than two. That is, the sum of the numbers 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 in rolling connection with the two guide optical axes 110 to achieve sliding guidance. In a further embodiment, to make the force on the sliding table 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 front and back.

[0049] In some embodiments, the rotation axis of the guide groove wheel 310 extends in the up and down direction. The guide groove wheel 310 and the guide optical axis 110 are arranged left and right. In this embodiment, the positioning accuracy of the guide groove wheel 310 in the left and right direction is relatively high, but the contact between the guide groove wheel 310 and the guide optical axis 110 in the up and down direction is small, so the load capacity is weak.

[0050] As Figure 5 shown, in a further embodiment, the rotation axis of the guide groove wheel 310 is inclined with respect to the up and down direction, so that the guide groove wheel 310 is inclined and arranged at the upper part of the sliding space. Refer to the attached Figure 5 , the guide groove wheels 310 of the two guide wheel assemblies 300 are symmetrically inclined left and right, and the load of the sliding table 200 can be divided into a component force in the up and down direction and a component force in the left and right direction. The two guide wheel assemblies 300 can cancel out the component forces in the left and right directions with each other. The contact between the inclined guide groove wheel 310 and the guide optical axis 110 increases, thereby enhancing the load capacity in the up and down direction.

[0051] The guiding sheave 310 with a rotation axis extending in the vertical direction is a flat sheave 312, and the guiding sheave 310 arranged obliquely is an inclined sheave 313. In some other embodiments, each of the guide wheel assemblies 300 includes at least two of the inclined sheaves 313 and at least two of the flat sheaves 312. The load-bearing capacity between the guiding sheave 310 and the guiding optical axis 110 is improved by the paired inclined sheaves 313, and the paired flat sheaves 312 can ensure the positioning accuracy in the left-right direction, and at the same time can reduce the jumping error of the sliding table 200, preventing the inclined sheave 313 from being disengaged from the guiding optical axis 110.

[0052] For the convenience of assembling the sliding table 200 and the base 100, in some embodiments, the guiding sheave 310 is adjustably arranged on the sliding table 200.

[0053] Specifically, as Figure 6 and Figure 7 shown, the sliding table 200 includes a slide body 210 and a pressing block 220, and the guide wheel assembly 300 includes a guide wheel shaft member 320. The guide wheel shaft members 320 are arranged in one-to-one correspondence with the guiding sheaves 310. The guiding sheave 310 is rotatably arranged at the lower end of the guide wheel shaft member 320, and the upper end of the guide wheel shaft member 320 is adjustably connected to the slide body 210 to realize the connection between the guiding sheave 310 and the slide body 210. The guiding sheave 310 is rotatably mounted at the lower end of the guide wheel shaft member 320 through a high-precision bearing. By the adjustable connection between the upper end of the guide wheel shaft member 320 and the slide body 210, the position of the guiding sheave 310 is changed. During the installation process, the guiding sheave 310 can avoid the guiding optical axis 110, which is convenient for assembly.

[0054] In the slide body 210 of this embodiment, a strip-shaped adjustment hole 211 is provided, and the strip-shaped adjustment hole 211 extends along the radial direction of the guiding sheave 310. The upper end of the guide wheel shaft member 320 is adjustably embedded in the strip-shaped adjustment hole 211. The upper end of the guide wheel shaft member 320 is guided by the strip-shaped adjustment hole 211, so that the guiding sheave 310 can be adjusted in position along the radial direction.

[0055] The slide body 210 is further provided with a strip-shaped mounting hole 212. A fastening screw is arranged in the strip-shaped mounting hole 212. The fastening screw passes through the strip-shaped mounting hole 212 and is threadedly connected to the guide wheel shaft member 320. The strip-shaped mounting hole 212 and the strip-shaped adjusting hole 211 are adapted in position so that the fastening screw can lock the guide wheel shaft member 320. During actual use, the head of the fastening screw is arranged in the strip-shaped mounting hole 212. The fastening screw passes through the slide body 210 and is threadedly connected to the end of the guide wheel shaft member 320 arranged in the strip-shaped adjusting hole 211, thereby locking the end of the guide wheel shaft member 320 in the strip-shaped adjusting hole 211 and realizing the fixation of the guide wheel assembly 300 and the slide body 210.

[0056] Further, to improve the positioning accuracy of the guide wheel shaft member 320 and the guide groove wheel 310 during locking and fixation, a limiting surface is provided at the end of the strip-shaped adjusting hole 211, and a limiting portion 321 corresponding to the limiting surface is provided at the end of the guide wheel shaft member 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 abutted against the pressing inclined surface 221 is provided at the end of the guide wheel shaft member 320.

[0057] The lower end of the guide wheel shaft member 320 is in a cylindrical shape, and the guide groove wheel 310 is rotatably sleeved on the lower end of the guide wheel shaft member 320. The upper end of the guide wheel shaft member 320 is in a block shape, and the limiting 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 member 320. The slide body 210 is provided with a mounting groove for the pressing block 220 to be embedded. The pressing block 220 is detachably connected to the slide body 210 by being locked with the slide body 210 through a screw.

[0058] During actual use, when the pressing block 220 is fixedly installed on the slide body 210, the guide wheel shaft member 320 can be pressed through 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 member 320 can abut against the limiting surface, thereby ensuring the positioning accuracy of the guide wheel shaft member 320.

[0059] In Figure 6 In the shown embodiment, the slide body 210 is in a rectangular plate shape. The strip-shaped mounting hole 212 and the strip-shaped adjusting hole 211 are adapted in position, and the strip-shaped mounting hole 212 and the strip-shaped adjusting hole 211 are respectively arranged on the upper and lower sides of the slide body 210. The end of the guide wheel shaft member 320 is embedded in the strip-shaped adjusting hole 211. Therefore, the pressing block 220 needs to be arranged on the lower side of the slide body 210 so that the pressing inclined surface 221 can abut against the positioning inclined surface 322.

[0060] 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 below 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 passes through 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 side by side beside the strip-shaped adjustment hole 211. The guide wheel shaft 320 has a mounting portion arranged in the strip-shaped mounting hole 212, and the mounting portion is locked and fixed to the slide body 210 in the strip-shaped mounting hole 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 pressing block 220 can also be arranged on the upper side of the slide body 210, thus facilitating adjustment and locking, and the maintenance, disassembly and assembly of the sliding table 200 are more convenient.

[0061] Based on the above-mentioned multiple embodiments, the linear module slide structure of the present invention includes but is not limited to the following specific implementation manners. Specific implementation manner 1:

[0063] The cross-section of the guide optical axis 110 is circular, and the guide optical axis 110 is in the shape of a long strip cylinder. The number of the guide optical axes 110 is two, and the two guide optical axes 110 are respectively arranged on the left and right sides of the base 100. The card slot 131 is arranged on one side of the side plate 130 close to the sliding space. The cross-section of the card slot 131 is circular, and the cross-section radius of the card slot 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 optical axis 110 is embedded in the card slot 131, and the other side is exposed outside the card slot 131, and the side embedded in the card slot 131 is larger in volume than the side exposed outside the card slot 131, so as to prevent the guide optical axis 110 from falling off radially from the card slot 131. The part of the guide optical axis 110 exposed outside the card slot 131 is the guide portion 111. The guide groove 311 of the guide groove wheel 310 rolls against the guide portion 111. The guide wheel shaft 320 is fixedly installed on the sliding table 200 or integrally formed with the sliding table 200.

[0064] As Figure 1 shown, in the linear module slide structure of the specific implementation manner 1, the processing difficulties of the guide optical axis 110 and the base 100 are both low, and the production cost of the linear module is low. During the assembly process, first align the guide grooves 311 of the guide groove wheels 310 on the left and right sides 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 snapped into the sliding space through the front end or the rear end of the base 100 to realize the sliding assembly of the sliding table 200 and the base 100. Specific Embodiment 2:

[0066] On each of the left and right sides of the base 100, there are provided two of the guiding optical axes 110. The two guiding optical axes 110 on the same side are arranged at different heights. Taking the two guiding optical axes 110 arranged at different heights on the same side as the upper optical axis 114 and the lower optical axis 115 respectively, the central axis of the upper optical axis 114 is higher than the central axis of the lower optical axis 115. The guide wheel assembly 300 includes two of the flat groove wheels 312 and two of the inclined groove wheels 313. The guiding grooves 311 of the two flat groove wheels 312 are all in rolling abutment with the upper optical axis 114. The guiding grooves 311 of the two inclined groove wheels 313 are all in rolling abutment with the lower optical axis 115.

[0067] As Figure 5 and Figure 6 shown, in the linear module slide structure of Specific Embodiment 2, on each of the left and right sides of the base 100, there are provided two of the guiding optical axes 110. The flat groove wheels 312 and the inclined groove wheels 313 in the guide wheel assembly 300 can respectively correspond to the two guiding optical axes 110 arranged at different heights, so that the flat groove wheels 312 and the inclined groove wheels 313 are staggered from each other in the height direction, reducing the dimensional requirements for the up and down directions of the sliding space and avoiding the situation where the thickness specification of the linear module is relatively large.

[0068] Based on the linear module slide structure of Specific Embodiment 2, the present invention provides Specific Embodiment 3:

[0069] Each of the inclined groove wheels 313 or the flat groove wheels 312 is rotatably mounted on one of the guide wheel shaft members 320. Among the two guide wheel assemblies 300 arranged left and right, the guide wheel shaft members 320 on which the inclined groove wheels 313 are mounted are all fixedly connected to the slide body 210. In one of the guide wheel assemblies 300, the guide wheel shaft member 320 on which the flat groove wheel 312 is mounted is fixedly connected to the slide body 210, and in the other guide wheel assembly 300, the guide wheel shaft member 320 on which the flat groove wheel 312 is mounted is adjustably connected to the slide body 210 in the left - right direction.

[0070] In the linear module slide structure of Specific Embodiment 3, among the two guide wheel assemblies 300 on the left and right sides, the flat groove wheels 312 are in rolling abutment with the upper optical axis 114, and the inclined groove wheels 313 are in rolling abutment with the lower optical axis 115. The flat groove wheels 312 and the inclined groove wheels 313 of one of the guide wheel assemblies 300 are all fixedly connected to the slide body 210, thus avoiding unnecessary installation errors during the assembly process of this guide wheel assembly 300. The inclined groove wheels 313 of the other guide wheel assembly 300 are fixedly connected to the slide body 210, and the flat groove wheels 312 are adjustably connected to the slide body 210 in the left - right direction.

[0071] Specifically, referring to Figure 6 and Figure 7 , the guide wheel shaft members 320 provided on the right side are fixedly connected to the slide body 210, and the guide wheel shaft members 320 provided on the left side and equipped with flat groove wheels 312 are adjustably connected to the slide body 210.

[0072] 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 holes 212, so that the pressing inclined surface 221 of the pressing block 220 disengages from the positioning inclined surface 322 of the guide wheel shaft member 320, and the upper end of the guide wheel shaft member 320 can slide to the right along the strip-shaped adjustment hole 211 to enable the flat groove wheel 312 provided on the left side to avoid to the right. Then, place the sliding table 200 from top to bottom on the upper side of the base 100. During the placement process, tilt the right side of the sliding table 200 downward so that the guide wheel assembly 300 on the right side can be positioned first, and the inclined groove wheel 313 and the flat groove wheel 312 on the right side are respectively abutted against the lower optical axis 115 and the upper optical axis 114 on the right side. Then, turn the left side of the sliding table 200 downward so that the inclined groove wheel 313 provided on the left side abuts against the lower optical axis 115 provided on the left side. After that, alternately tighten the screws connecting the pressing block 220 and the fastening screws in the strip-shaped mounting holes 212. When tightening the screws connecting the pressing block 220, the pressing block 220 locks upward to press the positioning inclined surface 322 through the pressing inclined surface 221, prompting the upper end of the guide wheel shaft member 320 to move to the left, so that the limiting portion 321 abuts against the limiting surface at the end of the strip-shaped adjustment hole 211. At this time, the flat groove wheel 312 provided on the left side abuts against the upper optical axis 114 on the left side to achieve positioning and anti-jump clamping in the left-right direction, and then lock and fix the guide wheel shaft member 320 through the fastening screws to complete the sliding assembly of the sliding table 200 and the base 100.

[0073] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0074] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can still 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 within 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 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 the front and rear. 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 contact 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; The guide wheel assembly further includes a guide wheel shaft member. The guide groove wheel 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; The sliding table is provided with a strip-shaped adjustment hole, and the strip-shaped adjustment hole extends along the radial direction of the guide groove wheel. The end of the guide wheel shaft member is adjustably embedded in the strip-shaped adjustment hole; A limiting surface is provided at the end of the strip-shaped adjustment hole, and a limiting portion corresponding to the limiting surface is provided at the end of the guide wheel shaft member. The sliding table is detachably provided with a pressing block, 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; A plurality of adjustment screws are arranged in the front and rear of the side plate. A part of the adjustment screws are threadedly inserted through the side plate and abutted against the guide optical axis, and the rest of the adjustment screws are movably inserted through the side plate and threadedly connected to the guide 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. Card slots are provided on the side of the two side plates facing each other, and the guide optical axes are respectively embedded in the card slots, and the guide portions are exposed outside the card slots.

3. The linear module slide structure according to claim 1, characterized in that: One guide optical axis is provided on each of the left and right sides of the base. 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 staggeredly in the front and rear.

4. The linear module slide structure according to claim 1, characterized in that: The rotation axis of the guide groove wheel is inclined with respect to the up and down direction, so that the guide groove wheel is disposed obliquely above the guide 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 guide groove wheels are inclined, and the rotation axes of at least two of the guide groove wheels extend in the up and down direction.

6. The linear module slide structure according to claim 1, characterized in that: The sliding table is further provided with a strip-shaped mounting hole, the strip-shaped mounting hole and the strip-shaped adjustment hole are adapted in 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.

Images