Recirculating ball linear moving platform

Abstract

The utility model discloses a circulating ball linear moving platform which comprises a driver, a coupler and a ball moving platform. The ball moving platform comprises a base with two guide walls, a sliding table part, a ball screw, a lead screw nut matched with the ball screw, a circulating ball, an inductor installed on the base and an induction piece installed on the sliding table part. The lead screw nut is connected with the sliding table, and the inductor is matched with the induction piece. The first part ball groove and the second part ball groove are matched to form the second complete ball groove, one ball steering groove of the two sealing covers, the first complete ball groove and the second complete ball groove form the circulating ball groove, and the circulating ball is arranged in the circulating ball groove, so that the sliding table part can quickly, stably and accurately move on the base; and actual application requirements can be fully met.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile platform technical field especially relates to a circulating ball linear mobile platform. BACKGROUND

[0002] Linear mobile platform is mostly adopt the cooperation mode of guide rail and sliding block, and the friction of this mode is big, which is not conducive to the fast and accurate movement of the mobile platform to the position. The existing linear mobile platform mostly installs the sensor on the outside, which leads to the extra space occupation of the product and is not conducive to the miniaturization of the product.

[0003] Therefore, the prior art has defects and needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that: provide a circulating ball linear mobile platform, can be fast and stable and accurate when moving, optimize product structure, realize product miniaturization.

[0005] The utility model discloses a technical scheme as follows: provide a circulating ball linear mobile platform, include: driver, coupling, ball mobile platform, the ball mobile platform includes: the base that contains two guide walls, sliding table part, ball screw, the screw nut that cooperates with ball screw, circulating ball, install the inductor on the base, install the inductive sheet on the sliding table part, the screw nut is connected with the sliding table, the inductor cooperates with the inductive sheet, the guide wall is provided with first part ball groove, the both ends of coupling are connected with the output end of driver, ball screw respectively, the sliding table part includes: the sliding table body that contains two cooperation parts, installs the cover on the both ends of sliding table body, the cover is provided with two ball turning grooves, the cooperation part is provided with second part ball groove, first complete ball groove, first part ball groove cooperates with second part ball groove and forms second complete ball groove, one ball turning groove of two covers, first complete ball groove, second complete ball groove form circulating ball groove, the circulating ball is arranged in circulating ball groove. Preferably, first part ball groove and second part ball groove all adopt half ball groove, that is, convenient processing, also convenient first part ball groove and second part ball groove cooperate.

[0006] The driver operates to drive the shaft coupling to rotate, thereby driving the ball screw to rotate, and then driving the screw nut to reciprocate, so as to realize the reciprocating movement of the sliding table part. The inductor is used to induct the inductive sheet, so as to know the position to which the sliding table part moves. The first part ball groove cooperates with the second part ball groove to form a second complete ball groove, one ball turning groove of the two coverings cooperates with the first complete ball groove and the second complete ball groove to form a circulating ball groove, and the circulating ball is arranged in the circulating ball groove, so that the sliding table part moves quickly, stably and accurately on the base, and the actual application requirements can be fully met.

[0007] Further, the cover is provided with a communication groove, and the communication groove communicates the two ball turning grooves. The communication groove is used to realize the consistency of the air pressure of the two ball turning grooves.

[0008] Further, the cover is further provided with an air hole, and the air hole communicates with the communication groove. The air hole is used to fill lubricating oil, and can also make the air pressure in the ball turning groove consistent with the atmospheric pressure.

[0009] Further, the circulating ball straight line moving platform further comprises a connecting frame connected with the base and the driver, and the shaft coupling passes through the connecting frame.

[0010] Further, the circulating ball straight line moving platform further comprises a mounting plate and a winding frame mounted on the connecting frame. The base is provided with a wire hole and a first mounting groove, and the wire hole communicates with the first mounting groove. The mounting plate is mounted at the first mounting groove, the inductor is mounted on the mounting plate, and the inductor is arranged between the two guide walls. The winding frame is used to provide winding for the cable connected with the inductor, so as to avoid the cable disorder. At the same time, the two guide walls can provide installation space for the ball screw and the inductor, so that the inductor does not need to be installed on the outside, which greatly facilitates

[0011] Further, the circulating ball straight line moving platform further comprises a bearing, the connecting frame is connected with the outer ring of the bearing, and the ball screw is connected with the inner ring of the bearing. The bearing can provide support for the ball screw, and does not affect the rotation of the ball screw.

[0012] Further, the sliding table part is provided with a second mounting groove, and the inductive sheet is mounted at the second mounting groove.

[0013] Further, the driver is a servo motor.

[0014] Adopting the above scheme, the utility model provides a kind of circulating ball linear moving platform, and one ball turning groove of two the cover is formed into circulating ball groove with first complete ball groove, second complete ball groove, the circulating ball is set in the circulating ball groove, realize the quick and stable accurate movement of sliding table part on base, can fully satisfy practical application demand. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 It is Figure 1 Exploded view of embodiment;

[0017] Figure 3 It is structural exploded view of base, mounting plate, inductor;

[0018] Figure 4 It is the explosion diagram of sliding table part. DETAILED DESCRIPTION

[0019] The utility model is specifically explained in detail as follows in connection with the drawings and specific embodiment.

[0020] Please refer to Figures 1-4The embodiment provides a circulating ball straight line moving platform, which comprises a driver 10, a shaft coupling 11 and a ball moving platform; the ball moving platform comprises a base 13 provided with two guide walls 12, a sliding table part, a ball screw 14, a screw nut 15 matched with the ball screw 14, circulating balls 16, an inductor 17 mounted on the base 13 and an inductive sheet 18 mounted on the sliding table part; the screw nut 15 is connected with the sliding table part, the inductor 17 is matched with the inductive sheet 18, the guide wall 12 is provided with a first partial ball groove 19, and the two ends of the shaft coupling 11 are respectively connected with the output end of the driver 10 and the ball screw 14; the sliding table part comprises a sliding table body 21 provided with two matching parts 20 and two end covers 22 mounted on the two ends of the sliding table body 21; the end cover 22 is provided with two ball turning grooves 23, the matching part 20 is provided with a second partial ball groove 24 and a first complete ball groove 25; the first partial ball groove 19 and the second partial ball groove 24 are matched into a second complete ball groove, one ball turning groove 23 of the two end covers 22 and the first complete ball groove 25 and the second complete ball groove form a circulating ball groove, and the circulating balls 16 are arranged in the circulating ball groove. Preferably, the first partial ball groove 19 and the second partial ball groove 24 are half ball grooves, which are convenient for processing and matching. In the embodiment, the driver 10 is a servo motor, and the inductor 17 is a U-shaped photoelectric sensor.

[0021] The driver 10 drives the shaft coupling 11 to rotate, thereby driving the ball screw 14 to rotate, and then driving the screw nut 15 to reciprocate, so that the sliding table part reciprocates. The inductor 17 is used for sensing the inductive sheet 18, so as to know the position of the sliding table part. The first partial ball groove 19 and the second partial ball groove 24 are matched into a second complete ball groove, one ball turning groove 23 of the two end covers 22 and the first complete ball groove 25 and the second complete ball groove form a circulating ball groove, and the circulating balls 16 are arranged in the circulating ball groove, so that the sliding table part moves on the base 13 quickly, stably and accurately, and the actual application requirements can be fully met.

[0022] In the embodiment, the end cover 22 is provided with a communication groove 26, and the communication groove 26 communicates the two ball turning grooves 23. The communication groove 26 is used for realizing the same air pressure of the two ball turning grooves 23.

[0023] In the embodiment, the end cover 22 is further provided with an air hole 27, and the air hole 27 communicates with the communication groove 26. The air hole 27 is used for filling lubricating oil, and also can make the air pressure in the ball turning groove 23 consistent with the atmospheric pressure.

[0024] In the embodiment, the circulating ball linear moving platform further comprises a connecting frame 28 connected to the base 13 and the driver 10, and the shaft coupling 11 passes through the connecting frame 28.

[0025] In the embodiment, the circulating ball linear moving platform further comprises a mounting plate 29, a wire reel 30 mounted on the connecting frame 28, the base 13 is provided with a wire hole 31 and a first mounting groove 33, the wire hole 31 is communicated with the first mounting groove 33, the mounting plate 29 is mounted at the first mounting groove 33, the inductor 17 is mounted on the mounting plate 29, and the inductor 17 is arranged between the two guide walls 12. The wire reel 30 is used for winding a wire connected to the inductor 17, so as to avoid the wire from being messy. Meanwhile, the two guide walls 12 can provide mounting space for the ball screw 14 and the inductor 17, so that the inductor 17 does not need to be mounted on the outside, which greatly facilitates the installation and maintenance of the inductor 17.

[0026] In the embodiment, the circulating ball linear moving platform further comprises a bearing 32, the connecting frame 28 is connected to an outer ring of the bearing 32, and the ball screw 14 is connected to an inner ring of the bearing 32. The bearing 32 can support the ball screw 14 without affecting the rotation of the ball screw 14.

[0027] In the embodiment, the slide table part is provided with a second mounting groove 34, and the inductive sheet 18 is mounted at the second mounting groove 34.

[0028] In summary, the circulating ball linear moving platform is provided, the first part ball groove and the second part ball groove are matched to form a second complete ball groove, one ball turning groove of the two sealing covers, the first complete ball groove and the second complete ball groove form a circulating ball groove, the circulating ball is arranged in the circulating ball groove, the slide table part is quickly, stably and accurately moved on the base, and actual application requirements can be fully met.

[0029] The above is only a preferred embodiment of the utility model, and is not used for limiting the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A circular ball linear motion platform, characterized in that, The utility model provides a drive, coupling, ball moving platform, the ball moving platform includes: the base containing two guide walls, slide table part, ball screw, the nut of screw rod matched with ball screw, circulating ball, the inductor installed on the base, the inductive sheet installed on the slide table part, the nut of screw rod is connected with the slide table, the inductor is matched with the inductive sheet, the first part ball groove is provided to the guide wall, the both ends of coupling are connected with the output of drive, ball screw respectively, the slide table part includes: the slide table body containing two cooperation parts, the cover is installed on the both ends of slide table body, the cover is provided with two ball turning groove, the cooperation part is provided with second part ball groove, first complete ball groove, first part ball groove and second part ball groove form second complete ball groove, one ball turning groove of two covers and first complete ball groove, second complete ball groove form circulating ball groove, the circulating ball is arranged in circulating ball groove.

2. The recirculating ball linear motion platform of claim 1, wherein, The cover is provided with a communication groove, and the communication groove communicates the two ball turning grooves.

3. The recirculating ball linear motion platform of claim 2, wherein, The cover is further provided with an air hole, and the air hole communicates with the communication groove.

4. The recirculating ball linear motion platform of claim 1, wherein, Further comprising: A connecting frame connected to the base and the drive, and the coupling passes through the connecting frame.

5. The recirculating ball linear motion platform of claim 4, wherein, Further comprising: A mounting plate and a winding frame mounted on the connecting frame, the base is provided with a wire hole and a first mounting slot, and the wire hole communicates with the first mounting slot; the mounting plate is mounted at the first mounting slot, the inductor is mounted on the mounting plate, and the inductor is arranged between the two guide walls.

6. The recirculating ball linear motion platform of claim 4, wherein, Further comprising: A bearing, the connecting frame is connected to the outer ring of the bearing, and the ball screw is connected to the inner ring of the bearing.

7. The recirculating ball linear motion platform of claim 1, wherein, The slide table part is provided with a second mounting slot, and the inductive sheet is mounted at the second mounting slot.

8. The recirculating ball linear motion platform of claim 1, wherein, The drive is a servo motor.

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