CN211841992U - Embedded guide rail linear sliding table with four-row arc-shaped grooves - Google Patents
Embedded guide rail linear sliding table with four-row arc-shaped grooves Download PDFInfo
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- CN211841992U CN211841992U CN201922335779.3U CN201922335779U CN211841992U CN 211841992 U CN211841992 U CN 211841992U CN 201922335779 U CN201922335779 U CN 201922335779U CN 211841992 U CN211841992 U CN 211841992U
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Abstract
The utility model discloses an embedded guide rail straight line slip table of four rows of arc-shaped slot, including aluminium alloy base and slide, slide slidable mounting adopts the aluminum alloy material of high strength in the aluminium alloy base, two square notches have all been seted up with the both sides of slide on the both sides inner wall of aluminium alloy base, and the equal interval of square notch and the slide both sides of aluminium alloy base both sides is equal, and both sides structure symmetry sets up, and fixed mounting has embedded guide rail in the square notch. The utility model discloses the circular arc formula slot has reduced the differential slippage of steel ball by a wide margin, and when increaseing the steel ball pre-compaction, rolling resistance ratio two brother formula structures will obviously reduce, have promoted the precision, have prolonged the life of rolling element, are particularly suitable for the application scenario of heavy load, high accuracy.
Description
Technical Field
The utility model relates to an accurate sharp transmission technical field especially relates to an embedded guide rail straight line slip table of four-row arc formula slot.
Background
The electric sliding table is also called as a single-shaft manipulator, a linear module and a linear actuator. The linear actuator is driven by a servo or a stepping motor and is an indispensable motion execution unit in automatic equipment. The linear sliding table is used as a basic part for guiding the transmission component and is a core component part of the electric sliding table and other linear transmission components.
The linear guide part of the existing electric sliding table mainly has two technical schemes, the first scheme is to adopt a standard guide rail as a precise guide structure of the electric sliding table, and the second scheme is to respectively process a Golde steel ball rolling groove on the inner side of an aluminum base and make relative movement through the steel ball and the groove on the sliding seat. The first mode is limited by the size of a standard component, so that the appearance size of the electric sliding table is large, and the application of the electric sliding table in occasions with miniaturization and light weight is not facilitated. The second mode adopts and installs on the aluminium base with the mode of guide rail embedding or adopt the all steel material, and the structure volume has obvious improvement. However, the embedded electric sliding table mostly adopts a two-column Golde type structure at present, and has the defects of insufficient rigidity, high requirement on the installation surface and the like in the occasion of large load.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides an embedded guide rail straight line slip table of four-row arc-shaped slot.
The utility model provides an embedded guide rail linear sliding table with four rows of arc-shaped grooves, which comprises an aluminum profile base and a sliding seat, wherein the sliding seat is slidably arranged in the aluminum profile base, the sliding seat is made of high-strength aluminum alloy, two square notches are respectively arranged on the inner walls of the two sides of the aluminum profile base and the two sides of the sliding seat, the square notches of the two sides of the aluminum profile base and the square notches of the two sides of the sliding seat are equally spaced, the structures of the two sides are symmetrically arranged, the embedded guide rail is fixedly arranged in the square notches, the hardness of the embedded guide rail is in the range of HRC 58-62, arc-shaped steel ball rolling grooves are respectively processed on the four embedded guide rails on the aluminum profile base and the four embedded guide rails on the sliding seat, the arc-shaped steel ball rolling grooves on the aluminum profile base and the arc-shaped steel ball rolling grooves on the sliding seat are correspondingly arranged, steel ball backflow, the groove and the backflow hole are guided and connected through the steel ball return device between the steel ball rolling grooves at two ends of the sliding seat and the steel ball backflow hole, the steel ball return device is arranged at two ends of the sliding seat and is installed between the corresponding steel ball rolling grooves and the corresponding steel ball backflow hole, the aluminum profile base and the sliding seat are respectively filled with the first steel ball sequence and the second steel ball sequence between the two corresponding steel ball rolling grooves at the same side, the first steel ball sequence and the second steel ball sequence are matched with the steel ball return device, the return device and the backflow hole at two ends of the sliding seat form four-row circular rolling steel ball sequences, the sliding seat is relatively moved with the aluminum profile base through the steel balls on the base guide rail grooves, and precise, stable and smooth embedded guide rail linear motion sliding tables are realized.
Preferably, the aluminum profile base is obtained through a metal extrusion process and has a certain section shape.
Preferably, the section of the aluminum profile base is designed to be of a U-shaped structure, and the embedded guide rail is embedded into a square notch of the aluminum profile base through an embedded process.
Preferably, the embedded guide rail is made of steel materials with high hardness and high wear resistance obtained through a cold drawing process.
Preferably, the cross-sectional shape of the arc-shaped steel ball rolling groove adopts a four-row arc-shaped groove structure.
Preferably, the shapes of the guide rails on the two side surfaces of the sliding seat and the arc-shaped steel ball rolling grooves are symmetrically distributed at the same height and correspond to the positions of the arc-shaped steel ball rolling grooves on the aluminum profile base.
Preferably, the ball screw nut mounting hole has been seted up on one side of slide, installs the ball screw nut in the ball screw nut mounting hole, and the ball screw is installed through the rolling steel ball to the ball screw nut, and outside the both ends of ball screw all extended to ball screw nut mounting hole, the one end of ball screw extended to outside the aluminium alloy base, and rotated and installed the bearing, and the aluminium alloy base is close to the one end fixed mounting of bearing has the rear end plate, and bearing fixed mounting is on the rear end plate.
Preferably, the ball is kept away from outside the one end of bearing extends the aluminium alloy base, and the aluminium alloy base is kept away from the one end fixed mounting of rear end plate and is had preceding support, and the one end that the bearing was kept away from to the ball runs through preceding support, and fixed mounting has the shaft coupling, and the output shaft of the one end fixedly connected with servo motor of ball is kept away from to the shaft coupling, and servo motor passes through support fixed mounting in the front on the support.
Preferably, install track and lower track in the aluminium alloy base, and go up the track and install respectively with lower track in aluminium alloy base is with two square notches of one side, the steel band is installed to the top side of aluminium alloy base.
The utility model discloses in, an embedded guide rail straight line slip table of four rows of circular arc formula slots, compared with prior art, the beneficial effect of this application is:
firstly, a four-row arc groove embedded guide rail structure is used and designed into an outer rail to bear force, so that the load capacity and rigidity of the steel ball bearing device are higher than those of two rows of steel balls;
secondly, the contact angles of the steel balls in each row are arranged at 45 degrees, all the sliding seats can bear force, and the same rated load is provided in all the directions;
thirdly, the process of embedding the guide rail in the U-shaped aluminum alloy material is adopted, so that the rigidity of the base is ensured, and the weight of the body is reduced;
fourthly, the arc-shaped groove greatly reduces the differential slippage of the steel balls, the rolling resistance is obviously reduced compared with a two-column Golde type structure when the prepressing of the steel balls is increased, the precision is improved, the service life of the rolling body is prolonged, and the steel ball rolling device is particularly suitable for application occasions with large load and high precision.
Drawings
Fig. 1 is a structural diagram of an embedded electric sliding table of a four-row arc groove guide rail.
Fig. 2 is a sectional view of a four-row arc groove guide rail structure.
FIG. 3 is a diagram showing the contact angle structure of four rows of arc-shaped groove guides.
FIG. 4 is a diagram showing a comparison of two-column Goldcell type groove guide structures.
Fig. 5 is a schematic diagram of rolling of a steel ball.
In the figure: 1 aluminum profile base, 2 slide, 3 embedded guide rails, 4 return devices, 5 ball screws, 6 front supports, 7 couplers, 8 servo motors, 9 bearings, 10 rear end plates, 11 steel belts, 12 upper rails, 13 first steel balls, 14 second steel balls and 15 lower rails.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-5, an embedded guide rail linear sliding table with four rows of arc grooves comprises an aluminum profile base 1 and a sliding seat 2, wherein the sliding seat 2 is slidably installed in the aluminum profile base 1 and is made of high-strength aluminum alloy, two square notches are respectively formed in the inner walls of the two sides of the aluminum profile base 1 and the two sides of the sliding seat 2, the square notches of the two sides of the aluminum profile base 1 and the square notches of the two sides of the sliding seat 2 are equally spaced, the structures of the two sides are symmetrically arranged, an embedded guide rail 3 is fixedly installed in each square notch, arc steel ball rolling grooves are respectively processed on the four embedded guide rails 3 on the aluminum profile base 1 and the four embedded guide rails 3 on the sliding seat 2, the arc steel ball rolling grooves on the aluminum profile base 1 and the arc steel ball rolling grooves on the sliding seat 2 are correspondingly arranged, and steel ball backflow holes are formed in the sliding seat 2 and at, the two ends of the sliding seat 2 are respectively provided with a steel ball return device 4, the steel ball return devices 4 are arranged between the corresponding steel ball rolling grooves and the corresponding steel ball return holes, a first steel ball sequence 13 and a second steel ball sequence 14 are respectively arranged between the aluminum profile base 1 and the two corresponding steel ball rolling grooves on the same side of the sliding seat 2, and the first steel ball sequence 13 and the second steel ball sequence 14 are matched with the steel ball return devices 4.
The utility model discloses in, aluminium alloy base 1 obtains to have certain cross sectional shape to make through metal extrusion process.
The utility model discloses in, aluminium alloy base 1's cross-section design is U type structure, and embedded type guide rail 3 is installed in aluminium alloy base 1's square groove through embedded technology embedding.
The utility model discloses in, embedded guide rail 3 acquires the steel that has high rigidity, high wear resistance through cold drawing technology and makes.
The utility model discloses in, the cross-sectional shape of arc-shaped steel ball roll slot adopts four rows of arc-shaped slot structures.
The utility model discloses in, the equal altitude distribution of guide rail shape and circular arc formula steel ball rolling slot of two sides of slide 2 to symmetry, and correspond with circular arc formula steel ball rolling slot position on the aluminium alloy base 1.
In the utility model, a ball screw nut mounting hole is arranged on one side of a slide seat 2, a ball screw nut is arranged in the ball screw nut mounting hole, the ball screw nut is provided with a ball screw 5 through a rolling steel ball, both ends of the ball screw 5 extend out of the ball screw nut mounting hole, one end of the ball screw 5 extends out of an aluminum profile base 1, and a bearing 9 is rotatably arranged, one end of the aluminum profile base 1 close to the bearing 9 is fixedly provided with a rear end plate 10, the bearing 9 is fixedly arranged on the rear end plate 10, one end of the ball screw 5 far away from the bearing 9 extends out of the aluminum profile base 1, one end of the aluminum profile base 1 far away from the rear end plate 10 is fixedly provided with a front support 6, one end of the ball screw 5 far away from the bearing 9 penetrates through the front support 6, a coupler 7 is fixedly arranged, one end of the coupler 7, a servo motor 8 is fixedly arranged on a front support 6 through a bracket, an upper rail 12 and a lower rail 15 are arranged in an aluminum profile base 1, the upper rail 12 and the lower rail 15 are respectively arranged in two square notches on the same side of the aluminum profile base 1, a steel belt 11 is arranged on the top side of the aluminum profile base 1, the contact surfaces of two guide rail grooves on the same side of the aluminum profile base 1 and steel balls are two surfaces close to the outer side, the contact surfaces of the two guide rail grooves on a sliding seat 2 and the steel balls are two surfaces close to the inner side, the contact surface of the same steel ball forms an angle of 180 degrees, the connecting line of the center of the contact surface and the connecting line of the contact surface of the steel balls on the other groove form an angle of 90 degrees, two rolling way grooves are respectively arranged on the two sides of the aluminum profile base 1, four rows of steel balls simultaneously roll circularly during movement, the 4 acting directions (radial direction, anti-radial direction and, in the rail circulation rolling system, when the steel ball rotates for one revolution, the steel ball slides while rolling, and differential slip is formed, and the differential slip amount is the difference between the circumference of the inside contact diameter (pi d1) and the circumference of the outside contact diameter (pi d 2). Namely: if the difference is large, the friction coefficient and the friction resistance are increased sharply, the radius of curvature of the rolling surface of the four-row circular arc steel ball is 52% of the radius of the steel ball, and the radius of curvature of the two-row Goldd type grooves is 55% -60% of the diameter of the steel ball, so that the friction resistance is obviously smaller than that of the two-row Goldd type when the four-row circular arc type increases the prepressing force.
Example two
Referring to fig. 1-5, an embedded guide rail linear sliding table with four rows of arc grooves comprises an aluminum profile base 1 and a sliding seat 2, wherein the sliding seat 2 is slidably installed in the aluminum profile base 1 and is made of high-strength aluminum alloy, two square notches are respectively formed in the inner walls of the two sides of the aluminum profile base 1 and the two sides of the sliding seat 2, the square notches of the two sides of the aluminum profile base 1 and the square notches of the two sides of the sliding seat 2 are equally spaced, the structures of the two sides are symmetrically arranged, an embedded guide rail 3 is fixedly installed in each square notch, the hardness of each embedded guide rail 3 is in the range of HRC 58-62, arc steel ball rolling grooves are respectively formed in the four embedded guide rails 3 on the aluminum profile base 1 and the four embedded guide rails 3 on the sliding seat 2, and the arc steel ball rolling grooves on the aluminum profile base 1 and the arc steel ball, a steel ball return hole is arranged on the slide seat 2 and at the position corresponding to the steel ball rolling groove on the slide seat 2, guiding and connecting the grooves and the steel ball return holes between the steel ball rolling grooves and the steel ball return holes at the two ends of the sliding seat 2 through steel ball return devices, arranging the steel ball return devices 4 at the two ends of the sliding seat 2, installing the steel ball return devices 4 between the corresponding steel ball rolling grooves and the steel ball return holes, respectively installing a first steel ball sequence 13 and a second steel ball sequence 14 between the aluminum profile base 1 and the two corresponding steel ball rolling grooves at the same side of the sliding seat 2, and adapting the first steel ball sequence 13 and the second steel ball sequence 14 with the steel ball return devices 4, the steel ball sequences rolling in a four-row circulating mode are formed through the return devices and the return holes at the two ends of the sliding seat, the sliding seat and the aluminum profile base move relatively through the steel balls on the base guide rail grooves, and the precise, stable and smooth embedded guide rail linear motion sliding table is achieved.
The utility model discloses in, aluminium alloy base 1 obtains to have certain cross sectional shape to make through metal extrusion process.
The utility model discloses in, aluminium alloy base 1's cross-section design is U type structure, and embedded type guide rail 3 is installed in aluminium alloy base 1's square groove through embedded technology embedding.
The utility model discloses in, embedded guide rail 3 acquires the steel that has high rigidity, high wear resistance through cold drawing technology and makes.
The utility model discloses in, the cross-sectional shape of arc-shaped steel ball roll slot adopts four rows of arc-shaped slot structures.
The utility model discloses in, the equal altitude distribution of guide rail shape and circular arc formula steel ball rolling slot of two sides of slide 2 to symmetry, and correspond with circular arc formula steel ball rolling slot position on the aluminium alloy base 1.
The utility model discloses in, ball nut mounting hole has been seted up on one side of slide 2, install ball nut in the ball nut mounting hole, ball 5 is installed through the rolling steel ball to ball nut, ball 5's both ends all extend to outside the ball nut mounting hole, ball 5's one end extends to outside the aluminium alloy base 1, and rotate and install bearing 9, aluminium alloy base 1 is close to the one end fixed mounting of bearing 9 has rear end plate 10, and bearing 9 fixed mounting is on rear end plate 10.
The utility model discloses in, outside ball 5 kept away from the one end of bearing 9 extended aluminium alloy base 1, aluminium alloy base 1 kept away from the one end fixed mounting of rear end plate 10 had preceding support 6, and ball 5 kept away from the one end of bearing 9 and runs through preceding support 6, and fixed mounting has shaft coupling 7, and ball 5's one end fixedly connected with servo motor 8's output shaft is kept away from to shaft coupling 7, and servo motor 8 passes through support fixed mounting in the front on support 6.
The utility model discloses in, install track 12 and lower track 15 in the aluminium alloy base 1, and go up track 12 and lower track 15 and install respectively in two square notches with one side in aluminium alloy base 1, steel band 11 is installed to aluminium alloy base 1's top side.
The utility model discloses: the contact surfaces of two guide rail grooves on the same side of the aluminum profile base 1 and the steel ball are two surfaces close to the outer side, the contact surfaces of two guide rail grooves on the sliding seat 2 and the steel ball are two surfaces close to the inner side, the contact surface of the same steel ball forms an angle of 180 degrees, the connecting line of the center of the contact surface and the connecting line of the contact surface of the steel ball on the other groove form an angle of 90 degrees, two raceway grooves are respectively arranged on two sides of the aluminum profile base 1, when in movement, four rows of steel balls roll circularly at the same time, 4 acting directions (radial direction, anti-radial direction and lateral direction) on the sliding seat have the same rated load, each steel ball row is configured according to a contact angle of 45 degrees, the sliding seat can bear the load no matter what posture, in the guide rail circulation rolling system, when the steel ball rotates for one circle, the steel ball slides while rolling, and differential slip is formed, and the differential slip amount is the difference between the circumference of the inner contact diameter (pi d1) and the circumference of the outer contact diameter (pi d 2). Namely: if the difference is large, the friction coefficient and the friction resistance are increased sharply, the radius of curvature of the rolling surface of the four-row circular arc steel ball is 52% of the radius of the steel ball, and the radius of curvature of the two-row Goldd type grooves is 55% -60% of the diameter of the steel ball, so that the friction resistance is obviously smaller than that of the two-row Goldd type when the four-row circular arc type increases the prepressing force.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. The embedded guide rail linear sliding table with the four rows of arc-shaped grooves comprises an aluminum profile base (1) and a sliding seat (2), and is characterized in that the sliding seat (2) is slidably installed in the aluminum profile base (1) and made of high-strength aluminum alloy, two square notches are formed in the inner walls of the two sides of the aluminum profile base (1) and the two sides of the sliding seat (2), the square notches in the two sides of the aluminum profile base (1) and the square notches in the two sides of the sliding seat (2) are equal in interval and symmetrically arranged in structure, embedded guide rails (3) are fixedly installed in the notches, arc-shaped steel ball rolling square grooves are machined in four embedded guide rails (3) on the aluminum profile base (1) and four embedded guide rails (3) on the sliding seat (2), and arc-shaped steel ball rolling square grooves on the aluminum profile base (1) and arc-shaped steel ball rolling grooves on the sliding seat (2) are arranged correspondingly, the steel ball backflow hole is formed in the position, corresponding to the steel ball rolling groove, on the sliding seat (2), the two ends of the sliding seat (2) are respectively provided with a steel ball backflow device (4), the steel ball backflow device (4) is installed between the corresponding steel ball rolling groove and the steel ball backflow hole, a first steel ball sequence (13) and a second steel ball sequence (14) are respectively installed between the two corresponding steel ball rolling grooves on the same side of the aluminum profile base (1) and the sliding seat (2), and the first steel ball sequence (13) and the second steel ball sequence (14) are matched with the steel ball backflow device (4.
2. The embedded guide rail linear sliding table with the four rows of arc-shaped grooves as claimed in claim 1, wherein the aluminum profile base (1) is made of a certain cross-sectional shape obtained through a metal extrusion process.
3. The embedded guide rail linear sliding table with the four rows of arc grooves as claimed in claim 1, wherein the section of the aluminum profile base (1) is designed to be a U-shaped structure, and the embedded guide rail (3) is embedded and installed in a square notch of the aluminum profile base (1) through an embedding process.
4. The linear sliding table with embedded guide rails and four rows of arc grooves as claimed in claim 1, wherein the embedded guide rail (3) is made of steel with high hardness and high wear resistance obtained by a cold drawing process.
5. The linear sliding table with the embedded guide rails and four rows of arc-shaped grooves according to claim 1, wherein the cross-sectional shape of the arc-shaped steel ball rolling groove is of a four-row arc-shaped groove structure.
6. The linear sliding table with the embedded guide rails and four rows of arc-shaped grooves according to claim 1, wherein the guide rail shapes on the two side surfaces of the sliding seat (2) and the arc-shaped steel ball rolling grooves are symmetrically distributed at the same height and correspond to the arc-shaped steel ball rolling grooves on the aluminum profile base (1).
7. The embedded guide rail linear sliding table with the four rows of arc-shaped grooves according to claim 1, characterized in that a ball screw nut mounting hole is formed in one side of the sliding seat (2), a ball screw nut is mounted in the ball screw nut mounting hole, a ball screw (5) is mounted on the ball screw nut through a rolling steel ball, two ends of the ball screw (5) extend out of the ball screw nut mounting hole, one end of the ball screw (5) extends out of the aluminum profile base (1), a bearing (9) is mounted in a rotating mode, a rear end plate (10) is fixedly mounted at one end, close to the bearing (9), of the aluminum profile base (1), and the bearing (9) is fixedly mounted on the rear end plate (10).
8. The embedded guide rail linear sliding table with the four rows of arc-shaped grooves according to claim 7 is characterized in that one end of the ball screw (5) far away from the bearing (9) extends out of the aluminum profile base (1), one end of the aluminum profile base (1) far away from the rear end plate (10) is fixedly provided with a front support (6), one end of the ball screw (5) far away from the bearing (9) penetrates through the front support (6), the aluminum profile base is fixedly provided with a coupler (7), one end of the coupler (7) far away from the ball screw (5) is fixedly connected with an output shaft of a servo motor (8), and the servo motor (8) is fixedly arranged on the front support (6) through a support.
9. The embedded guide rail linear sliding table with the four rows of arc-shaped grooves according to claim 1 is characterized in that an upper rail (12) and a lower rail (15) are installed in the aluminum profile base (1), the upper rail (12) and the lower rail (15) are respectively installed in two square notches on the same side of the aluminum profile base (1), and a steel belt (11) is installed on the top side of the aluminum profile base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922335779.3U CN211841992U (en) | 2019-12-24 | 2019-12-24 | Embedded guide rail linear sliding table with four-row arc-shaped grooves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922335779.3U CN211841992U (en) | 2019-12-24 | 2019-12-24 | Embedded guide rail linear sliding table with four-row arc-shaped grooves |
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| CN211841992U true CN211841992U (en) | 2020-11-03 |
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| CN201922335779.3U Active CN211841992U (en) | 2019-12-24 | 2019-12-24 | Embedded guide rail linear sliding table with four-row arc-shaped grooves |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861077A (en) * | 2019-12-24 | 2020-03-06 | 深圳银光机器人技术有限公司 | Embedded guide rail linear sliding table with four-row arc-shaped grooves |
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- 2019-12-24 CN CN201922335779.3U patent/CN211841992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861077A (en) * | 2019-12-24 | 2020-03-06 | 深圳银光机器人技术有限公司 | Embedded guide rail linear sliding table with four-row arc-shaped grooves |
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