Slide device for any continuous curve guideway transmission

Abstract

The present invention discloses a sliding device for transmission of any continuous curved guide rail, wherein: a guide rail and a rack are installed on a frame, and a guide wheel group is installed on a slide, wherein the guide wheel group includes two guide wheels, and the two guide wheels are clamped on both sides of the guide rail. The slide is also installed with a transverse sliding pair, and a gear slide is installed on the transverse sliding pair, and a driving gear is installed on the gear slide. A bearing is sleeved on the upper part of the driving gear, and a floating swing arm is installed on the outer edge of the bearing. A guide wheel is installed on the floating swing arm, and the lower parts of the guide wheel and the driving gear are clamped on both sides of the rack, and the driving gear is meshed with the rack. The present invention adds a transverse sliding pair, and the driving gear and the guide wheel are installed on the transverse sliding pair, so that a transverse float is generated between the driving gear and the slide, which solves the motion interference between the driving gear and the curved rack at the turning point of the curved guide rail. The driving gear and the rack are meshed with each other to improve the driving accuracy.

Description

Technical Field

[0001] The invention relates to a slide table, in particular to a slide device used for transmission of any continuous curved guide rail. Background Art

[0002] At present, most of the curved guides on the market are a combination of linear guides and circular guides. Figure 1 It is a structural schematic diagram of a curved guide rail in the prior art, such as Figure 1 As shown, the layout is a closed rectangle, serpentine, L-shaped or U-shaped, etc. Its driving device basically uses flexible or intermittent driving mechanisms such as belts, chains, and levers to drive the curved guide rail transmission device. Although these driving methods enable the track slide to pass smoothly at the corner, this method has elasticity or impact in the field of high positioning accuracy control due to its own structural limitations, resulting in transmission speed fluctuations and delays, causing the system transmission accuracy to be lost, and it is impossible to meet the high-precision positioning or system position real-time control requirements.

[0003] In the process of linear transmission, if the sliding device needs to achieve high-precision positioning requirements, basically the short-distance transmission mechanism uses a ball screw, and the long-distance transmission mechanism uses a gear rack to drive. Among them, the conventionally configured gear rack sliding device will cause the gear and rack to disengage or interfere when passing through the turning point of the curved guide rail, causing the two to be unable to engage normally in the sliding device. This solution analyzes the specific reasons why the gear rack cannot engage normally at the turning point of the curved guide rail, and configures a horizontally floating gear rack drive mechanism on the drive device, thereby realizing a slide that travels on any continuous curved guide rail. The drive gear rack on it can engage normally, and can be positioned with high precision and real-time control through the control system.

[0004] Figure 2 This is a schematic diagram of the structure of the interference of the rack guide rail at the turning point in the prior art, see Figure 2 In the existing slide process, when the slide 1 runs to the curve guide, the gear rack will interfere and cannot pass. This makes engineers reluctant to use gear racks to slide the device on the curve guide. After experiments, it is found that the driving gear G is laterally offset relative to the curve rack at the turn, causing interference or disengagement between the two, resulting in their inability to mesh and transmit normally.

[0005] Therefore, the present invention is dedicated to providing a sliding device with a layout of continuous curved guide rail transmission, which can be used for various material conveying, automated equipment walking drive, etc., especially for use in situations where high positioning precision drive control is required, such as robot walking rails, and other equipment with high precision transmission. Summary of the invention

[0006] The above object of the present invention is achieved through the following technical solutions:

[0007] A sliding device for transmission of any continuous curved guide rail, wherein a frame is equipped with: a guide rail and a rack; and also includes a slide, the slide is equipped with: a guide wheel group, the guide wheel group includes two guide wheels, the two guide wheels are clamped on both sides of the guide rail, the slide is also equipped with a transverse sliding pair, a gear slide is installed on the transverse sliding pair, a driving gear is installed on the gear slide, a bearing is sleeved on the upper part of the driving gear, a floating swing arm is installed on the outer edge of the bearing, a guide wheel is installed on the floating swing arm, the guide wheel and the lower part of the driving gear are clamped on both sides of the rack, and the driving gear is meshed with the rack.

[0008] As described above, the sliding device for transmission on any continuous curved guide rail, wherein the guide wheel, the guide wheel and the driving gear are all installed on a side of the slide table facing the frame.

[0009] As described above, in the sliding device for transmission on any continuous curved guide rail, a roller is further installed on the side of the slide facing the frame, and the roller abuts against the upper surface of the frame.

[0010] As described above, the sliding device for transmission of any continuous curved guide rail, wherein a driving source is installed on the gear slide, the output shaft of the driving source passes through the gear slide, a clamping mechanism is installed in the driving gear, and the clamping mechanism is fixed to the output shaft.

[0011] The sliding device for transmission on any continuous curved guide rail as described above, wherein the transverse sliding pair comprises: a sliding block installed on the guide rail, and the gear slide plate installed on the sliding block.

[0012] As described above, the sliding device for transmission on any continuous curved guide rail is provided with an arc-shaped through hole at a position corresponding to the guide wheel on the gear slide, and the rotating shaft of the guide wheel is placed in the arc-shaped through hole.

[0013] As described above, the sliding device for transmission on any continuous curved guide rail, wherein there are two groups of guide wheel groups.

[0014] As described above, the sliding device for transmission on any continuous curved guide rail, wherein the guide wheel set is mounted on the slide via a guide wheel set seat.

[0015] In summary, due to the adoption of the above technical solution, the present invention adds a transverse sliding pair, installs the driving gear and the guide wheel on the transverse sliding pair, and generates transverse floating between the driving gear and the slide, which solves the motion interference between the driving gear and the curved rack at the turning point of the curved guide rail. In addition, the mutually meshing transmission mode of the driving gear and the rack improves the driving accuracy and solves the problem of free driving of the slide on any continuous curved guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a curved guide rail in the prior art;

[0017] Figure 2 It is a schematic diagram of the structure of the interference of the rack guide rail at the turning point in the prior art;

[0018] Figure 3 It is a schematic cross-sectional view of the structure of the sliding device used for transmission on any continuous curved guide rail of the present invention;

[0019] Figure 4 It is a bottom view schematic diagram of the structure of the sliding device used for transmission on any continuous curved guide rail of the present invention;

[0020] Figure 5 The present invention is a schematic bottom view of the structure of a sliding device for transmission on any continuous curved guide rail, which passes through a turning point. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0022] Figure 3 It is a schematic cross-sectional view of the structure of the sliding device used for any continuous curved guide rail transmission of the present invention. Figure 4 It is a bottom view schematic diagram of the structure of the sliding device for transmission of any continuous curved guide rail of the present invention, Figure 5 This is a schematic diagram of the structure of the sliding device for any continuous curved guide rail transmission of the present invention passing through a bend, see Figures 3 to 5 A sliding device for transmission of any continuous curved guide rail, wherein a frame 4 is installed with: a guide rail 5 and a rack 8; it also includes a slide 1, the slide 1 is installed with: 3 groups of guide wheels, the 3 groups of guide wheels include two guide wheels 3, the two guide wheels 3 are clamped on both sides of the guide rail 5, the slide 1 is also installed with a transverse sliding pair 15, a gear slide 13 is installed on the transverse sliding pair 15, a driving gear 11 is installed on the gear slide 13, a bearing 9 is sleeved on the upper part of the driving gear 11, a floating swing arm 12 is installed on the outer edge of the bearing 9, a guide wheel 7 is installed on the floating swing arm 12, the guide wheel 7 and the lower part of the driving gear 11 are clamped on both sides of the rack 8, and the driving gear 11 is meshed with the rack 8.

[0023] The present invention adds a transverse sliding pair 15, a floating swing arm 12, a guide wheel 7 and a gear slide plate 13 between the slide 1 and the driving gear 11. During the driving process of the slide 1, the guide wheel 7 and the floating swing arm 12 can freely rotate around the axis of the driving gear 11. Under the action of the floating swing arm 12, the driving gear 11, the guide wheel 7 and the curved rack 8 constitute three rolling pairs and one sliding pair, so that the driving gear 11 will always mesh and roll along the curved rack 8, and will not get stuck or detach from the curved rack 8. In addition, the added transverse sliding pair 15 will allow the gear slide plate 13 to freely move laterally with the driving gear 11 relative to the slide 1 during operation, thereby compensating for the relative offset between the driving gear 11 and the curved rack 8 at the turning point, so that the two are always in a normal meshing state during operation.

[0024] Specifically, the rack 8 and the guide rail 5 can be formed by splicing a plurality of straight line segments and a plurality of circular arc segments, and the guide rail 5 can be a curved guide rail. The user can set the required running path according to the needs.

[0025] In the specific implementation of the present invention, the driving gear 11 can be placed on the side of the rack 8 away from the guide rail 5. For example, the driving gear 11 is placed between the rack 8 and the guide rail 5 and meshes with the rack 8, and the guide wheel 7 is arranged outside the rack 8.

[0026] Furthermore, the guide wheel 3 , the guide wheel 7 , and the driving gear 11 are all installed on the side of the slide 1 facing the frame 4 .

[0027] Furthermore, a roller 6 is installed on the side of the slide 1 facing the frame 4 , and the roller 6 abuts against the upper surface of the frame 4 .

[0028] Specifically, the plurality of supporting wheels 6 may be replaced by another load-bearing rail that is parallel to, concentric with, or equidistant from the guide rail 5 .

[0029] Furthermore, a driving source 14 is installed on the gear slide plate 13 , and an output shaft of the driving source 14 passes through the gear slide plate 13 . A clamping mechanism 10 is installed in the driving gear 11 , and the clamping mechanism 10 is fixed to the output shaft.

[0030] Furthermore, the transverse sliding pair 15 includes: a sliding block is installed on the guide rail 5, and the gear slide plate 13 is installed on the sliding block.

[0031] Specifically, the lateral sliding pair 15 can be replaced by any motion pair that can enable the driving gear 11 to achieve a free lateral floating function, including but not limited to linear slide rails, curved guide rails 5 and various non-standard designed non-powered linear motion mechanisms.

[0032] Furthermore, an arc-shaped through hole is opened on the gear slide plate 13 at a position corresponding to the guide wheel 7, and the rotating shaft of the guide wheel 7 is placed in the arc-shaped through hole.

[0033] Furthermore, there are two groups of guide wheels 3.

[0034] Furthermore, the guide wheel group 3 is installed on the slide 1 through the guide wheel group seat 2.

[0035] In the present invention, the guide wheel 7 can be designed as a cylinder that cannot rotate around its own axis, so that a high pair is formed between the guide wheel 7 and the curved rack 8 for contact.

[0036] The specific workflow of the present invention may be:

[0037] (1) When the driving source 14 is powered on, the driving gear 11 rotates;

[0038] (2) When the driving gear 11 rotates, the driving gear 11 will roll along the curved rack 8 under the constraints of the floating swing arm 12, the guide wheel 7 and the curved rack 8;

[0039] (3) The movement of the driving gear 11 drives the slide 1 to slide along the curved guide rail 5 through the driving source 14 housing, the gear slide plate 13 and the lateral sliding pair 15 connected thereto, thereby driving the slide 1 to move.

[0040] Advantages of the present invention:

[0041] 1. Solved the problem of interference between the gear and rack at the turning point when the gear and rack drive any continuous curve guide rail.

[0042] 2. Abandoning the traditional flexible driving solutions such as belts, chains, and levers, the slide is driven by high-precision gears and racks, so that high-precision positioning can be achieved at any position of any continuous curve guide rail.

[0043] 3. The driving gear is in a free floating state, which completely avoids interference at the track turning. The free floating state configuration makes it unnecessary for the rack to be parallel or concentric with the turning section of the guide rail at the turning point, which greatly reduces the processing deformation, positioning accuracy and installation difficulty of the turning section on the rack and guide rail, thereby reducing the manufacturing cost of the equipment.

[0044] 4. A single guide rail and supporting roller are configured, which reduces the load-bearing requirements of the guide rail. Of course, by reasonably arranging multiple supporting rollers, the gravity of the load can be borne by multiple supporting rollers, and the guide rail only plays a guiding role, thereby reducing the running wear of the guide rail.

[0045] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work or software programming. Therefore, any technical solution that can be obtained by a person skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A sliding device for arbitrary continuous curved guide rail transmission, characterized in that: The frame is equipped with: a guide rail and a rack; it also includes a slide, on which is installed: a guide wheel group, the guide wheel group includes two guide wheels, the two guide wheels are clamped on both sides of the guide rail, the slide is also equipped with a transverse sliding pair, a gear slide is installed on the transverse sliding pair, a driving gear is installed on the gear slide, a bearing is sleeved on the upper part of the driving gear, a floating swing arm is installed on the outer edge of the bearing, a guide wheel is installed on the floating swing arm, the guide wheel and the lower part of the driving gear are clamped on both sides of the rack, and the driving gear is meshed with the rack; The guide wheel, the guide wheel and the driving gear are all installed on the side of the slide facing the frame; the side of the slide facing the frame is also installed with a supporting roller, and the supporting roller is against the upper surface of the frame; a driving source is installed on the gear slide, and the output shaft of the driving source passes through the gear slide, and a clamping mechanism is installed in the driving gear, and the clamping mechanism is fixed to the output shaft; the transverse sliding pair includes a guide rail and a slider installed on the guide rail, and the gear slide is installed on the slider; An arc-shaped through hole is provided on the gear slide plate at a position corresponding to the guide wheel, and the rotating shaft of the guide wheel is placed in the arc-shaped through hole.

2. The sliding device for arbitrary continuous curve guide rail transmission according to claim 1, characterized in that: There are two guide wheel groups.

3. The sliding device for arbitrary continuous curve guide rail transmission according to claim 1, characterized in that: The guide wheel assembly is installed on the slide via a guide wheel assembly seat.

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