WO2020206746A1

WO2020206746A1 - Novel guide slider

Info

Publication number: WO2020206746A1
Application number: PCT/CN2019/084076
Authority: WO
Inventors: 吴跃新; 朱建文
Original assignee: 上海博信机器人科技有限公司
Priority date: 2019-04-09
Filing date: 2019-04-24
Publication date: 2020-10-15
Also published as: CN110107592A

Abstract

A guide slider, comprising: a slider body (1), eccentric shaft sleeves (2), rollers (3), positioning screws (4), and a pressing plate (6). The three rollers (3) are eccentrically mounted in the slider body (1) by means of the eccentric shaft sleeves (2), and the eccentric shaft sleeves (2) are fixed in eccentric shaft sleeve mounting holes (11, 12, 13) at an angle by means of the positioning screws (4), thereby completing adjustment of gaps between the rollers (3) and a guide rail (5).

Description

A new sliding block for guiding

Technical field

The invention relates to the technical field of mobile guiding equipment, in particular to a new type of sliding block for guiding.

Background technique

The slider is a component that carries objects sliding on a specific track. It is usually widely used in mobile fields such as ground rails, truss robots, cranes, shipping docks, etc. The use of sliders reduces the intensity of manual labor and realizes objects on specific routes through power. Automated handling improves production and transportation efficiency. The slider moves along the guide rail, and the load is fixed to the slider through the slider body. The load moves through the slider guided by the guide rail and is finally loaded on the guide rail. The slider is installed on the guide rail to realize load transfer. In the prior art, the slider is composed of concentric rollers, eccentric rollers, lock nuts, etc.; from the aspects of load operating speed, shape and structure, weight, machining accuracy and operation stability requirements, and slider service life, it is different depending on the specific use conditions. The gap between the required guide rail and the roller is difficult to quantify, and the positions and quantities of the required concentric and eccentric rollers are different, which brings trouble to the production and after-sales maintenance and management; secondly, the lock nut has a small space and it is inconvenient to install or replace the roller.

Summary of the invention

The novel guiding slider involved in the present invention solves one or more technical problems mentioned above by improving the structure.

A new type of sliding block for guiding, including: block body 1, eccentric bushing 2, roller 3, positioning screw 4, pressure plate 6,

The bottom plate surface of the slider body 1 is machined with a guide rail sliding groove 14, the guide rail 5 is placed in the guide rail sliding groove 14 of the slider body 1, and the plate surface of the slider body 1 is machined with a first eccentric bushing mounting hole 11 and a second eccentric The shaft sleeve installation hole 12 and the third eccentric shaft sleeve installation hole 13, wherein the first eccentric shaft sleeve installation hole 11 and the second eccentric shaft sleeve installation hole 12 are respectively located on both sides of the guide rail slide groove 14 and the two eccentric shaft sleeves The direction of the center axis of the mounting hole is perpendicular to the guide movement plane, the third eccentric bushing mounting hole 13 is located on one side of the guide rail slide groove 14, the direction of the center axis of the third eccentric bushing mounting hole 13 is parallel to the guide movement plane and the eccentric shaft The center axis of the sleeve mounting hole is located above the guide rail 5. The first eccentric sleeve mounting hole 11, the second eccentric sleeve mounting hole 12, and the third eccentric sleeve mounting hole 13 are respectively mounted with a first eccentric sleeve 21 and a second eccentric sleeve. The eccentric bushing 22, the third eccentric bushing 23 and each eccentric bushing are composed of an eccentric bushing body with an extension collar on the upper end surface and an eccentric shaft integrally structured with the eccentric bushing body. Correspondingly, the eccentric bushing is installed The end of the mounting hole is provided with a stepped recess for placing the clamp ring, the lower end of the eccentric shaft is machined with a threaded blind hole, the upper part of the first eccentric shaft sleeve 21, the second eccentric shaft sleeve 22, and the third eccentric shaft sleeve 23 A pressing plate 6 is placed on the end surface. The pressing plate 6 is screwed to the surface of the slider body 1 to press the upper plate surface of the eccentric bushing; the eccentricity of the first eccentric bushing 21, the second eccentric bushing 22, and the third eccentric bushing 23 A first roller 31, a second roller 32, and a third roller 33 are respectively sleeved on the shaft. A circular baffle is installed on the lower end of each roller. The hexagon socket screw passes through the center of the circular baffle, the center of the roller, and the eccentric shaft. The threaded blind hole on the lower end makes the circular baffle abut against the inner circle of the roller and does not touch the outer circle of the roller, and fix the roller on the eccentric shaft in a rolling manner to avoid shaking of the roller during rolling; The outer circles of the second roller 32 and the third roller 33 are respectively located on three faces of the guide rail 5;

Among them, one or more arc-shaped or circular positioning threaded holes 7 are machined on the outer peripheral surface of the first eccentric shaft sleeve 21, the second eccentric shaft sleeve 22, and the third eccentric shaft sleeve 23. An eccentric bushing mounting hole 11, a second eccentric bushing mounting hole 12, and a third eccentric bushing mounting hole 13 have an arc-shaped or circular positioning threaded hole 7 on the lower plate surface of the stepped recess where the collar is placed. Positioning threaded holes 8, positioning screws 4 pass through the arc-shaped or circular positioning threaded holes 7, and positioning threaded holes 8 to position and fix the eccentric bushing in the mounting hole of the eccentric bushing. Use the positioning screw 4 to fix the eccentric bushing The different arc-shaped or circular positioning threaded holes 7 and the different positioning threaded holes 8 in the eccentric bushing mounting hole are installed in alignment to adjust the gap between the corresponding roller surface and the guide rail surface to achieve a reliable quantification of the gap.

The novel guiding slider body of the present invention can uniformly use the slider body as a standard part to be suitable for various situations, reduce the variety of the slider body, and facilitate production and after-sales management. Install all three rollers eccentrically. When adjusting the gap between the rollers and the guide rail surface, you can fix the distance between the guide rail and the roller on one side first, and then adjust the distance between the guide rail and the roller on the other side using this as a reference plane; you can also adjust the gap at the same time The distance between the rollers on both sides of the guide rail and the guide rail surface improves the flexibility of gap adjustment.

Preferably, in the new guide slider, the outer circle diameter of the first roller 31 is smaller than the first eccentric shaft sleeve mounting hole 11, the outer circle diameter of the second roller 32 is smaller than the second eccentric shaft sleeve mounting hole 12, and the third roller 33 The diameter of the outer circle is smaller than the third eccentric sleeve mounting hole 13. The gap between the roller and the guide rail surface is adjusted by the rotation of the eccentric shaft sleeve. The pressing plate 6 on the end face of the eccentric shaft sleeve ensures that the position of the roller after the gap adjustment is fixed. The setting of the pressure plate 6 moves the locking position of the roller outward. Easy to replace.

Preferably, in the new guide slider, more than two unloading screw holes are machined on the plate surface of the slider body 1, and unloading screws 9 are installed in the unloading screw holes, and the unloading screws can be rotated against the load roller. The rail surface on the same side.

When the load roller needs to be replaced, first remove the pressure plate 6 corresponding to the roller to be replaced, and then rotate the unloading screw 9 forward until the bottom end abuts against the surface of the guide rail to bear the load of the load roller. After removing the set screw 4, Take out the eccentric bushing and load roller and replace the load roller. The load roller is difficult to unload under the load. The unloading screw 9 can bear the load of the load roller, which is convenient for disassembly and assembly of the load roller.

Preferably, in the new guide slider, the first roller 31 and the second roller 32 are not located at symmetrical positions on both sides of the guide rail 5, but are placed in a staggered manner on both sides of the guide rail 5 back and forth.

There needs to be a certain gap between the rollers and the guide rail surface. The first roller 31 and the second roller 32 on both sides of the guide rail 5 are placed in a staggered manner to avoid violent vibration during the operation of the sliding block guided by the guide rail and ensure operation The steady.

Preferably, in the new guide slider, the upper plate surfaces of the first eccentric bushing 21, the second eccentric bushing 22, and the third eccentric bushing 23 protrude from the surface of the slider body 1, preferably, convex The surface of the slider body 1 is 0.3mm～1.2mm. The convex upper end of the eccentric shaft sleeve makes the pressing plate 6 tightly abut against the upper end surface of the eccentric shaft sleeve, which improves the installation firmness of the eccentric shaft sleeve and the roller.

Preferably, the new guide sliding block is additionally provided with a lubricating component, and the lubricating component is mainly used for lubricating the roller, reducing the wear caused by friction of the component, and prolonging the service life of the component.

Preferably, the new guide slider, the lubrication mechanism is a manual lubrication assembly, the manual lubrication assembly includes a funnel-type oil nozzle at an eccentric position among the first eccentric bushing 21, the second eccentric bushing 22, and the third eccentric bushing 23 Mounting hole 10, funnel nozzle 11, first annular oil groove 12 on the cylindrical surface of the lower end of each eccentric sleeve, first oil hole 121 located in the first annular oil groove 12 and communicating with the funnel nozzle mounting hole 10, eccentric shaft cylinder The second annular oil groove 13 on the surface, the second oil hole 131 located in the second annular oil groove 13 and communicating with the funnel nozzle mounting hole 10.

The operator adds lubricating oil to the funnel nozzle 11. The lubricating oil passes through the first oil hole 121 and the first annular oil groove 12 for three eccentric shaft sleeves. The lubricating oil passes through the second oil hole 131 and the second annular oil groove 13 for oily lubrication. Three rollers are oily lubricated.

Preferably, the new guide slider, the lubrication mechanism is an automatic lubrication component, and the automatic lubrication component includes the inner wall of the first eccentric shaft sleeve installation hole 11, the second eccentric shaft sleeve installation hole 12, and the third eccentric shaft sleeve installation hole 13. The connected automatic oil inlet 14, the first annular oil groove 12 on the cylindrical surface of the lower end of each eccentric bushing, the first oil hole 121 located in the first annular oil groove 12 and communicating with the funnel nozzle mounting hole 10, and the cylindrical surface of the eccentric shaft The second annular oil groove 13, the second oil hole 131 located in the second annular oil groove 13 and communicating with the funnel nozzle mounting hole 10, the first oil hole 121 communicates with the second oil hole 131; the automatic oil inlet 14 is in the first An eccentric shaft sleeve installation hole 11, a second eccentric shaft sleeve installation hole 12, and a third eccentric shaft sleeve installation hole 13 have three automatic oil inlet holes 14 on the inner wall of the eccentric shaft sleeve installation hole near the middle. The oil hole 14 communicates with the outer plate surface of the slider body 1 and is connected with the oil pipe. The other two automatic oil inlet holes 14 are respectively communicated with the automatic oil inlet holes 14 on the inner walls of the remaining two eccentric shaft sleeve mounting holes. It is at the same height as the first annular oil groove 12 and the second annular oil groove 13.

The lubricating oil is passed into the automatic oil inlet hole 14 connected by the oil pipe through the automatic equipment, and the flow direction of the lubricating oil is in the first annular oil groove 12, the first oil hole 121, the second oil hole 131, and the second annular oil groove 13.

Preferably, in the new guide slider, the slider body 1 is equipped with two or more sets of first eccentric sleeve 21, second eccentric sleeve 22, and third eccentric sleeve with rollers along the length direction of the guide rail 5. The shaft sleeve 23, and the arc-shaped or circular positioning threaded holes 7 on each eccentric shaft sleeve and the eccentric shaft sleeve positioning threaded holes 8 correspond to different quantitative gaps.

Multiple sets of quantified gap component settings further improve the versatility of the slider.

Description of the drawings:

The specific implementation is further described below in conjunction with the drawings, in which:

Figures 1 and 2 are schematic diagrams of the overall structure of the new guiding slider involved in the present invention;

Figure 2 is a schematic diagram of the exploded structure of the new guiding slider involved in the present invention;

Figures 3a and 3b are schematic views of the structure of the slider body in the new guide slider according to the present invention;

Figures 4 and 5 are partial structural diagrams of the new guiding slider involved in the present invention;

Fig. 6 is a schematic diagram of the assembly structure of the eccentric bushing and the roller in the new guide slider according to the present invention;

Fig. 7 is a schematic view of the structure of the first, second or third eccentric bushing in the novel guide slider according to the present invention;

Fig. 8 is a segmentation diagram of Fig. 7;

Figure 9 is a schematic diagram of the mechanism of adjusting the distance between the roller and the guide rail surface in the new guide slider involved in the invention, wherein 9a is a schematic diagram of the slider, 9b is a schematic diagram of the eccentric bushing, and 9c, 9d, 9e, and 9f are Schematic diagram of quantified clearance during rotation of eccentric bushing.

The corresponding structure of the number is as follows:

The slider body 1, the first eccentric bushing mounting hole 11, the second eccentric bushing mounting hole 12, the third eccentric bushing mounting hole 13, the guide rail sliding groove 14, the eccentric bushing 2, the first eccentric bushing 21, the first Two eccentric bushing 22, third eccentric bushing 23, roller 3, first roller 31, second roller 32, third roller 33, positioning screw 4, guide rail 5, pressing plate 6, arc or circular positioning threaded hole 7 , Positioning threaded hole 8, unloading screw 9, funnel nozzle mounting hole 10, funnel nozzle 11, first annular oil groove 12, first oil hole 121, second annular oil groove 13, second oil hole 131, automatic oil inlet hole 14,

detailed description

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Specific implementation case 1:

A new type of guide slider, including: slider body 1, eccentric bushing 2, roller 3, positioning screw 4, pressing plate 6, the bottom surface of the slider body 1 is machined with a guide rail slide groove 14, and the guide rail 5 is placed on the slider In the guide rail slide groove 14 of the body 1, the plate surface of the slider body 1 is machined with a first eccentric shaft sleeve mounting hole 11, a second eccentric shaft sleeve mounting hole 12, and a third eccentric shaft sleeve mounting hole 13, wherein the first eccentric shaft The sleeve installation hole 11 and the second eccentric shaft sleeve installation hole 12 are respectively located on both sides of the guide rail slide groove 14 and the central axis direction of the two eccentric shaft sleeve installation holes is perpendicular to the guide movement plane, the third eccentric shaft sleeve installation hole 13 Located on one side of the guide rail slide groove 14, the direction of the center axis of the third eccentric bushing mounting hole 13 is parallel to the guide movement plane and the center axis of the eccentric bushing mounting hole is located above the guide rail 5. The first eccentric bushing mounting hole 11, A first eccentric shaft sleeve 21, a second eccentric shaft sleeve 22, and a third eccentric shaft sleeve 23 are installed in the second eccentric shaft sleeve installation hole 12 and the third eccentric shaft sleeve installation hole 13, respectively. An eccentric bushing body with an extension collar and an eccentric shaft integrated with the eccentric bushing body are formed. Correspondingly, the end of the eccentric bushing mounting hole is provided with a stepped recess for placing the clamp ring. The lower end surface is machined with threaded blind holes. The upper end surfaces of the first eccentric bushing 21, the second eccentric bushing 22, and the third eccentric bushing 23 are all placed with a pressing plate 6, which is screwed to the slider body 1 to make it eccentric The upper plate surface of the sleeve is pressed; the eccentric shafts of the first eccentric sleeve 21, the second eccentric sleeve 22, and the third eccentric sleeve 23 are respectively sleeved with a first roller 31, a second roller 32, and a third roller 33 , A circular baffle is installed on the lower end of each roller. The hexagon socket screw passes through the center of the circular baffle, the center of the roller, and the threaded blind hole on the lower end of the eccentric shaft, so that the circular baffle abuts against the inner circle of the roller and does not touch. The outer circle of the roller is rotatably fixed on the eccentric shaft to avoid shaking of the roller during rolling; the outer circles of the first roller 31, the second roller 32, and the third roller 33 are respectively located on the three faces of the guide rail 5;

Among them, the outer circle diameter of the first roller 31 is smaller than the first eccentric shaft sleeve mounting hole 11, the outer circle diameter of the second roller 32 is smaller than the second eccentric shaft sleeve mounting hole 12, and the outer circle diameter of the third roller 33 is smaller than the third eccentric shaft. Set of mounting holes 13.

Further, two unloading screw holes are machined on the board surface of the slider body 1 and unloading screws 9 are installed in the unloading screw holes. The unloading screws can be rotated against the rail surface on the same side as the load roller.

Further, the first roller 31 and the second roller 32 are not located at symmetrical positions on both sides of the guide rail 5, but are placed in a staggered manner on both sides of the guide rail 5 back and forth.

Further, the upper plate surfaces of the first eccentric bushing 21, the second eccentric bushing 22, and the third eccentric bushing 23 protrude from the surface of the slider body 1, wherein the upper plate surface of the slider body 1 protrudes by 0.3 mm. Or 0.6mm.

Further, a manual lubrication assembly is added. The manual lubrication assembly includes a funnel-type nozzle installation hole 10, a funnel-type nozzle 11, and a funnel-type nozzle 11 at eccentric positions of the first eccentric shaft sleeve 21, the second eccentric shaft sleeve 22, and the third eccentric shaft sleeve 23. The first annular oil groove 12 on the cylindrical surface of the lower end of each eccentric shaft sleeve, the first oil hole 121 located in the first annular oil groove 12 and communicating with the funnel nozzle mounting hole 10, the second annular oil groove 13 on the cylindrical surface of the eccentric shaft, A second oil hole 131 in the second annular oil groove 13 and communicated with the funnel nozzle installation hole 10.

The new guiding slider involved in the present invention has the following advantages: convenient to replace the roller; the slider, eccentric shaft sleeve, and roller as a unified standard part have high versatility, reduce the variety of parts, and facilitate the production and after-sales maintenance management; improve the roller and guide rail Reliable quantification of gap adjustment.

Specific implementation case 2:

A new type of guide slider, including: slider body 1, eccentric bushing 2, roller 3, positioning screw 4, pressing plate 6, the bottom surface of the slider body 1 is machined with a guide rail slide groove 14, and the guide rail 5 is placed on the slider In the guide rail slide groove 14 of the body 1, the plate surface of the slider body 1 is machined with a first eccentric shaft sleeve mounting hole 11, a second eccentric shaft sleeve mounting hole 12, and a third eccentric shaft sleeve mounting hole 13, wherein the first eccentric shaft The sleeve installation hole 11 and the second eccentric shaft sleeve installation hole 12 are respectively located on both sides of the guide rail slide groove 14 and the central axis direction of the two eccentric shaft sleeve installation holes is perpendicular to the guide movement plane, the third eccentric shaft sleeve installation hole 13 Located on one side of the guide rail slide groove 14, the direction of the center axis of the third eccentric bushing mounting hole 13 is parallel to the guide movement plane and the center axis of the eccentric bushing mounting hole is located above the guide rail 5. The first eccentric bushing mounting hole 11, A first eccentric shaft sleeve 21, a second eccentric shaft sleeve 22, and a third eccentric shaft sleeve 23 are installed in the second eccentric shaft sleeve installation hole 12 and the third eccentric shaft sleeve installation hole 13, respectively. An eccentric bushing body with an extension collar and an eccentric shaft integrated with the eccentric bushing body are formed. Correspondingly, the end of the eccentric bushing mounting hole is provided with a stepped recess for placing the clamp ring. The lower end surface is machined with threaded blind holes. The upper end surfaces of the first eccentric bushing 21, the second eccentric bushing 22, and the third eccentric bushing 23 are all placed with a pressing plate 6, which is screwed to the slider body 1 to make it eccentric The upper plate surface of the sleeve is pressed; the eccentric shafts of the first eccentric sleeve 21, the second eccentric sleeve 22, and the third eccentric sleeve 23 are respectively sleeved with a first roller 31, a second roller 32, and a third roller 33 , A circular baffle is installed on the lower end of each roller. The hexagon socket screw passes through the center of the circular baffle, the center of the roller, and the threaded blind hole on the lower end of the eccentric shaft, so that the circular baffle abuts against the inner circle of the roller and does not touch. The outer circle of the roller is rotatably fixed on the eccentric shaft to avoid shaking of the roller during rolling; the outer circles of the first roller 31, the second roller 32, and the third roller 33 are respectively located on the three faces of the guide rail 5; Among them, one or more arc-shaped or circular positioning threaded holes 7 are machined on the outer peripheral surface of the first eccentric shaft sleeve 21, the second eccentric shaft sleeve 22, and the third eccentric shaft sleeve 23. An eccentric bushing mounting hole 11, a second eccentric bushing mounting hole 12, and a third eccentric bushing mounting hole 13 have an arc-shaped or circular positioning threaded hole 7 on the lower plate surface of the stepped recess where the collar is placed. Positioning threaded holes 8, positioning screws 4 pass through the arc-shaped or circular positioning threaded holes 7, and positioning threaded holes 8 to position and fix the eccentric bushing in the mounting hole of the eccentric bushing. Use the positioning screw 4 to fix the eccentric bushing The different arc-shaped or circular positioning threaded holes 7 and the different positioning threaded holes 8 in the eccentric bushing mounting hole are installed in alignment to adjust the gap between the corresponding roller surface and the guide rail surface to achieve a reliable quantification of the gap.

Among them, the outer circle diameter of the first roller 31 is smaller than the first eccentric shaft sleeve mounting hole 11, the outer circle diameter of the second roller 32 is smaller than the second eccentric shaft sleeve mounting hole 12, and the outer circle diameter of the third roller 33 is smaller than the third eccentric shaft. With the mounting holes 13, the first roller 31 and the second roller 32 are not located at the symmetrical positions on both sides of the guide rail 5, but are placed in a staggered manner on both sides of the guide rail 5.

Further, the upper plate surfaces of the first eccentric bushing 21, the second eccentric bushing 22, and the third eccentric bushing 23 protrude from the surface of the slider body 1, and optionally, protrude from the surface of the slider body 1. 0.9 or 1.1mm.

Further, an automatic lubrication assembly is added. The automatic lubrication assembly includes an automatic oil inlet 14 communicating with the inner wall of the first eccentric shaft sleeve installation hole 11, the second eccentric shaft sleeve installation hole 12, and the third eccentric shaft sleeve installation hole 13. The first annular oil groove 12 on the cylindrical surface of the lower end of the eccentric bushing, the first oil hole 121 located in the first annular oil groove 12 and communicating with the funnel nozzle mounting hole 10, the second annular oil groove 13 on the cylindrical surface of the eccentric shaft, and the The second oil hole 131 in the two annular oil grooves 13 and communicated with the funnel-type oil nozzle mounting hole 10, the first oil hole 121 communicates with the second oil hole 131; the automatic oil hole 14 is in the first eccentric bushing mounting hole 11, the second oil hole The inner wall of the two eccentric shaft sleeve installation holes 12 and the third eccentric shaft sleeve installation hole 13 near the middle is machined with three automatic oil inlet holes 14, one of which is connected to the slider body 1. The outer plate surface is connected and connected with the oil pipe. The other two automatic oil inlet holes 14 are respectively connected with the automatic oil inlet holes 14 on the inner walls of the remaining two eccentric bushing mounting holes. The automatic oil inlet holes 14 are connected to the first annular oil groove 12 and the second The annular oil groove 13 is at the same height.

Optionally, add one or three sets of rollers, the slider body 1 is equipped with two sets of first eccentric bushing 21, second eccentric bushing 22, and third eccentric bushing 23 with rollers along the length of the guide rail 5. , And the arc-shaped or circular positioning threaded holes 7 on each eccentric shaft sleeve and the eccentric shaft sleeve positioning threaded holes 8 correspond to different quantitative gaps.

The principle of gap adjustment is as follows:

1. Figure 9a is a simplified diagram of the slider:

The radius of the slider's rotating surface is R, and the positioning threaded holes 8 are uniformly and symmetrically machined on the circumference of the rotating surface. The angle between the positioning threaded holes 8 and the center of rotation is A, and the corresponding chord length is B;

B=2Rsin(A/2)≥4f ₁ R ₁ --------------①

f ₁ -------Safety factor, based on experience hard materials (steel, cast iron, etc.) take 1---1.2, soft materials (aluminum, copper, etc.) take 1.5--2.0

R ₁ ------The radius of the positioning threaded hole 8, which is given before the structure design, in mm

2. As shown in Figure 9b, it is a simplified diagram of the eccentric shaft sleeve;

The eccentricity of the eccentric shaft and the eccentric shaft sleeve is e, the radius of the rotating surface is R, and the arc or circular positioning threaded holes 7 are uniformly machined on the circumference of the rotating surface, and the angle between the arc or circular positioning threaded holes 7 and the center of rotation d, the corresponding chord length is b. Note: the positioning point D6 and the roller are on the same central plane; the roller is rigidly connected to the eccentric bushing. When the eccentric bushing rotates at the center of the rotation surface, the roller is centered on the rotation surface of the eccentric bushing Is the center of rotation, e is the radius of rotation, and the eccentric shaft sleeve moves rigidly together. When the eccentric shaft sleeve rotates from the positioning point D6 to the point DA (corresponding to the angle a), the corresponding roller center moves from point M to point N, and the roller The vertical distance between the center and the reference P is C,

Sin(0.5d)=0.5b/R-------------------------------------②

b≥4f ₁ R ₂ ----------------------------------③

c=esina------------------------------------------④

f ₁ -------Safety factor, based on experience for hard materials (steel, cast iron, etc.) to be 1---1.2, and soft materials (aluminum, copper, etc.) to be 1.5--2.0;

R ₂ ------The radius of the positioning screw, which is given before the structural design, in mm;

b-------The angle between the positioning hole and the center of rotation corresponds to the chord length, in mm;

R-------radius of rotation surface, given before structural design, unit mm;

In the actual design, the circle of the positioning hole will be concentric with the circle of the rotating surface, but not on the same circle, but R1, R2 must be on the concentric circle; R1, R2 can be pin holes (in this case, internal thread cylindrical pins are used); It is also possible that R1 uses a threaded hole (in this case, the positioning pin becomes a hexagon socket head screw), and at this time R2 uses a countersunk screw hole that matches this hexagon socket head screw, or vice versa (R1 is a hexagon socket head screw) Screw countersunk hole, R2 is threaded hole).

3. Gap adjustment mechanism

The position of the slider body of the guide rail is fixed, the rotating surface of the eccentric sleeve matches (contacts) with the rotating selection surface of the slider body, the roller and the eccentric sleeve are integrated, and the rotating surface of the eccentric sleeve rotates in one direction within the rotating surface of the slider body, resulting in the roller and the guide rail The gap of the contact surface changes (0-e);

Position 1: As shown in Figure 9c, the positioning point D6 of the eccentric bushing coincides with the positioning point D1 of the slider body, and the gap between the guide rail surface and the roller is 0;

Position 2: As shown in Figure 9d, the positioning point 7 of the eccentric bushing coincides with the positioning point 2 of the slider body, and the clearance between the guide rail surface and the roller is c=esin(d-A);

Position 3: As shown in Figure 9e, the positioning point D8 of the eccentric bushing coincides with the positioning point D3 of the slider body. At this time, the gap between the guide rail surface and the roller is c=esin (2d-2A);

Position 4: As shown in Figure 9f, the positioning point D9 of the eccentric shaft sleeve coincides with the positioning point D5 of the slider body. At this time, the gap between the guide rail surface and the roller is c=esin(2A-d);

In the same way, the gaps between the guide rail surface and the rollers corresponding to the positioning points of the other eccentric bushings coincide with the positioning points of the slider body are the same as the above calculation method.

The above-mentioned embodiments only express several implementation modes of the present invention. The description is more specific and detailed, but it should not be understood as a limitation on the scope of the present invention. It should be pointed out that the present invention is for common technologies in the field. As far as personnel are concerned, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

A new type of guide slider, including: slider body, eccentric bushing, roller, positioning screw, pressing plate, the bottom surface of the slider body is machined with guide rail slide grooves, the guide rail is placed in the guide rail slide groove of the slider body, The board surface of the block body is processed with a first eccentric shaft sleeve installation hole, a second eccentric shaft sleeve installation hole, and a third eccentric shaft sleeve installation hole. The first eccentric shaft sleeve installation hole and the second eccentric shaft sleeve installation hole are respectively located on the guide rail On both sides of the sliding groove and the direction of the central axis of the two eccentric bushing mounting holes is perpendicular to the guide movement plane, the third eccentric bushing mounting hole is located on one side of the guide rail sliding groove, the third eccentric bushing mounting hole is The direction is parallel to the guide movement plane and the central axis of the eccentric bushing mounting hole is located above the guide rail. The first eccentric bushing mounting hole, the second eccentric bushing mounting hole, and the third eccentric bushing mounting hole are respectively mounted with a first eccentric The shaft sleeve, the second eccentric shaft sleeve, and the third eccentric shaft sleeve, and each eccentric shaft sleeve is composed of an eccentric shaft sleeve body with an extension collar on the upper end surface, and an eccentric shaft integrated with the eccentric shaft sleeve body. Correspondingly, install The end of the eccentric shaft sleeve mounting hole is provided with a stepped recess for placing the clamp ring, the lower end of the eccentric shaft is machined with threaded blind holes, and the upper part of the first eccentric shaft sleeve, the second eccentric shaft sleeve and the third eccentric shaft sleeve A pressure plate is placed on the end surface, and the pressure plate is screwed to the slider body plate surface to press the upper plate surface of the eccentric shaft sleeve; the eccentric shafts of the first eccentric shaft sleeve, the second eccentric shaft sleeve and the third eccentric shaft sleeve are respectively sleeved The first roller, the second roller, and the third roller are equipped with a circular baffle on the lower end of each roller. The hexagon socket screw passes through the center of the circular baffle, the center of the roller, and the threaded blind hole on the lower end of the eccentric shaft to make it round The baffle rests against the inner circle of the roller and does not touch the outer circle of the roller, and the roller is fixed on the eccentric shaft in a rolling manner to avoid shaking of the roller during rolling; the outer circles of the first roller, the second roller and the third roller are respectively Located on three sides of the guide rail;

Among them, one or more arc-shaped or circular positioning threaded holes are machined on the outer peripheral surface of the first eccentric shaft sleeve, the second eccentric shaft sleeve, and the third eccentric shaft sleeve extension collar. Correspondingly, the first eccentric shaft sleeve The lower plate surface of the stepped recess where the collar is placed in the sleeve mounting hole, the second eccentric shaft sleeve mounting hole, and the third eccentric shaft sleeve mounting hole is machined with positioning threaded holes corresponding to the arc or circular positioning threaded holes, The positioning screw passes through the arc or circular positioning threaded hole and positioning threaded hole to position and fix the eccentric shaft sleeve in the eccentric shaft sleeve mounting hole. The positioning screw is used to connect the different arc or circular positioning threaded holes in the eccentric shaft sleeve with Different positioning threaded holes in the mounting hole of the eccentric shaft sleeve are installed to adjust the gap between the corresponding roller surface and the guide rail surface to achieve a reliable quantification of the gap.
The new guide slider according to claim 1, wherein the outer circle diameter of the first roller is smaller than the first eccentric shaft sleeve installation hole, the second roller outer circle diameter is smaller than the second eccentric shaft sleeve installation hole, and the third roller The diameter of the outer circle is smaller than the third eccentric sleeve mounting hole.
The new guide slider according to claim 1, characterized in that more than two unloading screw holes are processed on the plate surface of the slider body, and unloading screws are installed in the unloading screw holes, and the unloading screws can be rotated against The rail surface on the same side as the load roller.
The new guide slider according to claim 1, wherein the first roller and the second roller are arranged in a staggered manner on both sides of the guide rail.
The new guide slider according to claim 1, wherein the upper plate surface of the first eccentric shaft sleeve, the second eccentric shaft sleeve, and the third eccentric shaft sleeve protrudes from the surface of the slider body, wherein the convex The board surface of the slider body is 0.3mm～1.2mm.
The new guide slider according to claim 1, characterized in that: a lubricating component is added, and the lubricating component is mainly used for lubricating the roller and the eccentric shaft sleeve.
The new guide slider according to claim 6, characterized in that: the lubrication mechanism is a manual lubrication assembly, and the manual lubrication assembly includes a funnel at an eccentric position among the first eccentric bushing, the second eccentric bushing, and the third eccentric bushing Type nozzle mounting hole, funnel type nozzle, first annular oil groove on the cylindrical surface of the lower end of each eccentric bushing, first oil hole located in the first annular oil groove and connected with the funnel type nozzle mounting hole, and second oil hole on the cylindrical surface of the eccentric shaft An annular oil groove and a second oil hole located in the second annular oil groove and communicating with the funnel-type oil nozzle installation hole.
The new guide slider according to claim 6, characterized in that: the lubrication mechanism is an automatic lubrication component, and the automatic lubrication component includes a first eccentric shaft sleeve mounting hole, a second eccentric shaft sleeve mounting hole, and a third eccentric shaft sleeve mounting hole. The automatic oil inlet hole connected to the inner wall of the hole, the first annular oil groove on the cylindrical surface of the lower end of each eccentric bushing, the first oil hole located in the first annular oil groove and connected with the funnel-type nozzle mounting hole, and the second cylindrical surface of the eccentric shaft The annular oil groove, the second oil hole located in the second annular oil groove and connected with the funnel-type oil nozzle installation hole, the first oil hole is connected with the second oil hole; the automatic oil inlet hole is in the first eccentric bushing installation hole and the second eccentric The inner wall of the bushing mounting hole and the third eccentric bushing mounting hole near the middle of the eccentric bushing mounting hole is machined with three automatic oil inlet holes, one of which is connected to the outer surface of the slider body and is connected to the oil pipe The other two automatic oil inlet holes are respectively connected with the automatic oil inlet holes on the inner walls of the remaining two eccentric shaft sleeve mounting holes, and the automatic oil inlet holes are at the same height as the first annular oil groove and the second annular oil groove.
The new guide slider according to claims 1-8, characterized in that: the slider body is equipped with two or more sets of first eccentric sleeves and second eccentric sleeves with rollers along the length of the guide rail. , The third eccentric shaft sleeve, and the arc or circular positioning threaded holes on each eccentric shaft sleeve and the eccentric shaft sleeve positioning threaded holes correspond to different quantitative gaps.