Dual-power-driven variable-pitch module

Abstract

The invention discloses a dual-power-driven variable-pitch module. The dual-power-driven variable-pitch module comprises a machine base. The sliding base sets are movably arranged on the machine base, the number of the sliding base sets is at least two, and each sliding base set comprises sliding bases which are symmetrically arranged; the first driving device is used for driving the sliding seat groups to transversely move, so that the distance between the sliding seat groups is changed; the first driving device is used for driving the sliding seats in the sliding seat sets to move horizontally, the second driving device is used for driving the sliding seats in the sliding seat sets to move horizontally, and therefore the distance between the sliding seats is changed. And then the distance between the two sliding blocks in the sliding block set is driven to be adjusted through the second driving device, and the using range of the dual-power-driven variable-pitch module is widened by controlling the variable pitch between the sliding base set and the sliding bases through the dual-driving device.

Description

Technical Field

[0001] The present invention relates to the technical field of variable pitch modules, and particularly to a dual-power driven variable pitch module. Background Art

[0002] Modular design is an important trend in modern industrial design, aiming to improve design efficiency, product quality, while reducing costs and risks. As a key technology in modular design, the variable pitch module has high flexibility and intelligence, and precisely adjusts the distance change between workstations through positioning. Most of the existing variable pitch modules on the market adopt cam variable pitch modules, which drive the camshaft to rotate through a driving motor, and a guide groove is arranged on the camshaft to change the distance between the carriage groups carried thereon.

[0003] However, the above technology still has defects. Most of the carriage groups carried on the cam variable pitch module are composed of two carriages, and the distance between the carriages in the same group cannot be moved and changed, so it is not applicable to products of various sizes.

[0004] For the above reasons, it is necessary to improve the existing technology. Summary of the Invention

[0005] I. Technical Problems to be Solved

[0006] In view of the above defects existing in the prior art, the present invention particularly provides a dual-power driven variable pitch module to solve the problems mentioned in the above background art.

[0007] II. Technical Solutions

[0008] To solve the above technical problems, the present invention provides a dual-power driven variable pitch module, including a machine base;

[0009] A carriage group, the carriage group is movably arranged on the machine base, and at least two groups are provided. The carriage group includes symmetrically arranged carriages;

[0010] A first driving device, the first driving device is used to drive the carriage group to move horizontally, so as to change the distance between the carriage groups;

[0011] A second driving device, the second driving device is used to drive the carriages in the carriage group to move horizontally, so as to change the distance between the carriages.

[0012] In the above technical solution, the second driving device includes a second driving motor disposed on one side of the machine base, a spline shaft disposed in the inner cavity of the machine base, and a spline nut sleeved on the spline shaft. The spline nut is circumferentially locked. Both ends of the spline shaft are rotatably supported on both sides of the machine base, and one end is connected to the second driving motor through a second transmission device. First guiding grooves are symmetrically arranged at both ends of the spline nut, and first guiding blocks connected to the first guiding grooves are convexly provided at the bottom end of the sliding seat.

[0013] In the above technical solution, a plurality of first limiting grooves are concavely provided on the spline shaft, and limiting convex portions used in cooperation with the first limiting grooves are arranged in the spline nut.

[0014] In the above technical solution, a second limiting groove is arranged at the central position of the spline nut. The first driving device includes a first driving motor disposed on one side of the machine base and a roller horizontally disposed on one side of the spline shaft. Both ends of the roller are rotatably supported on both sides of the machine base, and one end is connected to the first driving motor through a first transmission device. Second guiding grooves corresponding to the number of the sliding seat groups are arranged at intervals on the roller. A third transmission device is arranged in the inner cavity of the machine base, and the third transmission device is respectively connected to the second guiding grooves and the second limiting groove.

[0015] In the above technical solution, the third transmission device includes a first guide rail. A plurality of first sliders corresponding to the number of the second guiding grooves are movably arranged on the first guide rail. Second guiding blocks used in cooperation with the second guiding grooves are convexly provided on the first sliders. A fixing portion extends upward from one side of the first slider, and a limiting block used in cooperation with the second limiting groove is arranged on the fixing portion.

[0016] In the above technical solution, the first transmission device includes a first transmission wheel disposed at one end of the first driving motor, a second transmission wheel disposed at one end of the roller, and a first transmission belt connecting the first transmission wheel and the second transmission wheel.

[0017] In the above technical solution, the second transmission device includes a third transmission wheel disposed at one end of the second driving motor, a fourth transmission wheel disposed at one end of the spline shaft, and a second transmission belt connecting the third transmission wheel and the fourth transmission wheel.

[0018] In the above technical solution, two second guide rails are symmetrically arranged on both sides of the top of the machine base. Second sliders used in cooperation with the second guide rails are arranged at the bottom end of the sliding seat.

[0019] In the above technical solution, a supporting portion is arranged in the machine base, and the spline shaft is sleeved at the top end of the supporting portion.

[0020] III. Beneficial Effects

[0021] Compared with the prior art, the present invention has the following beneficial effects: The present invention drives the sliding seat group to move horizontally through the first driving device to realize the adjustment of the distance between the sliding seat groups, and then drives the adjustment of the distance between the two sliding blocks between the sliding block groups through the second driving device. By adopting the double driving devices to respectively control the variable distance between the sliding seat group and the sliding seats, the use range of the double-power driving variable distance module is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0023] Figure 2 It is a top view structural schematic diagram of the present invention.

[0024] Figure 3 It is a left view structural schematic diagram of the present invention.

[0025] Figure 4 It is a right view structural schematic diagram of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the sliding seat of the present invention.

[0027] Figure 6 It is a sectional structural schematic diagram of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the spline nut of the present invention.

[0029] In the figure: 1 is the machine base, 11 is the first guide rail, 12 is the first slider, 13 is the second guide rail, 14 is the second slider, 15 is the support part, 16 is the third transmission device, 120 is the second guide block, 121 is the fixing part, 122 is the limiting block, 2 is the sliding seat group, 20 is the sliding seat, 200 is the first guide block, 3 is the first driving device, 30 is the first driving motor, 31 is the roller, 32 is the first transmission device, 310 is the second guide groove, 320 is the first transmission wheel, 321 is the second transmission wheel, 322 is the first transmission belt, 4 is the second driving device, 40 is the second driving motor, 41 is the spline shaft, 42 is the spline nut, 43 is the second transmission device, 410 is the first limiting groove, 420 is the first guide groove, 421 is the limiting convex part, 422 is the second limiting groove, 430 is the third transmission wheel, 431 is the fourth transmission wheel, 432 is the second transmission belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0031] Please refer to Figure 1-7, the present invention provides a double - power - driven variable - pitch module, including a machine base 1;

[0032] A slide - seat group 2, the slide - seat group 2 is movably arranged on the machine base 1, and there are at least two groups. The slide - seat group 2 includes symmetrically arranged slide seats 20;

[0033] A first driving device 3, the first driving device 3 is used to drive the slide - seat group 2 to move horizontally, so as to change the distance between the slide - seat groups 2;

[0034] A second driving device 4, the second driving device 4 is used to drive the slide seats 20 in the slide - seat group 2 to move horizontally, so as to change the distance between the slide seats 20.

[0035] In the above structure, the first driving device drives each slide - seat group carried on the double - power - driven variable - pitch module to move horizontally, so as to adjust and change the distance between the slide - seat groups, realizing the variable pitch of the slide - seat group by the first driving device. Then, the second driving motor drives the change of the distance between the two slide seats in each slide - seat group, so as to realize the variable pitch between the slide seats in each slide - seat group by the second driving device. By the variable pitch between the slide - seat groups and the variable pitch between the slide seats, the distance between the slide seats can be adjusted more precisely, so that the double - power - driven variable - pitch module can adapt to products of more sizes and increase its scope of use.

[0036] Specifically, the second driving device 4 includes a second driving motor 40 arranged on one side of the machine base 1, a spline shaft 41 arranged in the inner cavity of the machine base 1, and a spline nut 42 sleeved on the spline shaft 41. The spline nut 42 is circumferentially locked. The two ends of the spline shaft 41 are rotatably supported on both sides of the machine base 1, and one end is connected to the second driving motor 40 through a second transmission device 43. Two first guiding grooves 420 are symmetrically arranged at both ends of the spline nut 42. A first guiding block 200 is convexly provided at the bottom end of the slide seat 20 and is connected to the first guiding groove 420. First guiding blocks connected to the first guiding grooves at both ends are respectively arranged at the bottom parts of the two slide seats in the same group. The second driving motor uses the second transmission device to transmit the force of its own rotation to the spline shaft, so that the spline shaft rotates. The rotation of the spline shaft drives the spline nut sleeved on it to rotate synchronously. The first guiding grooves symmetrically arranged at both ends of the spline nut rotate, thus playing a guiding role for the connected first guiding blocks. The first guiding blocks move along the positions of the first guiding grooves, thereby driving the change of the distance between the two slide seats.

[0037] Specifically, a plurality of first limiting grooves 410 are concavely provided on the spline shaft 41, and limiting convex portions 421 which are matched with the first limiting grooves 410 are arranged in the spline nut 42. The cooperation of the first limiting grooves and the limiting convex portions enables the spline nut sleeved on the spline shaft to move axially along the spline shaft, but the circumferential movement is locked, and it can only be rotated synchronously while the spline shaft rotates.

[0038] Specifically, a second limiting groove 422 is arranged at the central position of the spline nut 42. The first driving device 3 includes a first driving motor 30 arranged on one side of the machine base 1 and a roller 31 horizontally arranged on one side of the spline shaft 41. Both ends of the roller 31 are rotatably supported on both sides of the machine base 1, and one end is connected to the first driving motor 30 through a first transmission device 32. Second guiding grooves 310 corresponding to the number of the sliding seat groups 2 are arranged at intervals on the roller 31. A third transmission device 16 is arranged in the inner cavity of the machine base 1. The third transmission device 16 is respectively connected to the second guiding grooves 310 and the second limiting groove 422. When the first driving motor rotates, the rotational force is transmitted to the roller through the first transmission device, and the roller rotates synchronously. The second guiding grooves arranged on the roller rotate accordingly, and the third transmission device connected to the second guiding grooves moves synchronously. The third transmission device is simultaneously connected to the second limiting groove, so that it drives the spline nut to move axially along the spline shaft, and the sliding seat groups arranged on the spline nut move synchronously, thereby changing the distance between the sliding seat groups.

[0039] Specifically, the third transmission device 16 includes a first guide rail 11. A plurality of first sliders 12 corresponding to the number of the second guiding grooves 310 are movably arranged on the first guide rail 11. Second guiding blocks 120 which are matched with the second guiding grooves 310 are convexly arranged on the first sliders 12. A fixing portion 121 extends upward from one side of the first slider 12. A limiting block 122 which is matched with the second limiting groove 422 is arranged on the fixing portion 121. The design of using the guide rail and the slider as the third transmission device adopts rolling friction, which greatly reduces the frictional resistance, reduces the movement resistance, and improves the movement efficiency.

[0040] Specifically, the first transmission device 32 includes a first transmission wheel 320 arranged at one end of the first driving motor 30, a second transmission wheel 321 arranged at one end of the roller 31, and a first transmission belt 322 connecting the first transmission wheel 320 and the second transmission wheel 321. Using the transmission wheel and the transmission belt as the transmission device, the overall structure is simple, the cost is low, and at the same time, the synchronous transmission accuracy is high.

[0041] Specifically, the second transmission device 43 includes a third transmission wheel 430 disposed at one end of the second drive motor 40, a fourth transmission wheel 431 disposed at one end of the spline shaft 41, and a second transmission belt 432 connecting the third transmission wheel 430 and the fourth transmission wheel 431. Using transmission wheels and transmission belts as the overall structure of the transmission device is simple in structure and low in cost, and at the same time, the synchronous transmission accuracy is high.

[0042] Specifically, two second guide rails 13 are symmetrically arranged on both sides of the top of the machine base 1, and second sliders 14 that cooperate with the second guide rails 13 are arranged at the bottom end of the sliding seat 20. The cooperation of the second guide rails and the second sliders can not only guide the sliding seat but also reduce the friction when the sliding seat moves.

[0043] Specifically, a support portion 15 is arranged in the machine base 1, and the spline shaft 41 is sleeved at the top end of the support portion 15. The support portion supports the center position of the spline shaft, which can reduce the gravity exerted downward on the spline shaft by the products arranged thereon, and prevent the spline shaft from breaking or deforming due to excessive weight.

[0044] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A dual-power drive variable pitch module, characterized in that, Comprising: A machine base (1); A slide base group (2), the slide base group (2) is movably arranged on the machine base (1), and at least two groups are provided. The slide base group (2) includes symmetrically arranged slide bases (20); A first driving device (3), the first driving device (3) is used to drive the slide base group (2) to move horizontally, so as to change the distance between the slide base groups (2); A second driving device (4), the second driving device (4) is used to drive the slide bases (20) in the slide base group (2) to move horizontally, so as to change the distance between the slide bases (20).

2. A double-power-driven variable-spacing module according to claim 1, characterized in that: The second driving device (4) includes a second driving motor (40) arranged on one side of the machine base (1), a spline shaft (41) arranged in the inner cavity of the machine base (1), and a spline nut (42) sleeved on the spline shaft (41). The spline nut (42) is circumferentially locked. Both ends of the spline shaft (41) are rotatably supported on both sides of the machine base (1), and one end is connected to the second driving motor (40) through a second transmission device (43). First guide grooves (420) are symmetrically arranged at both ends of the spline nut (42), and first guide blocks (200) connected to the first guide grooves (420) are convexly provided at the bottom ends of the slide bases (20).

3. A double-power-driven variable-spacing module according to claim 2, characterized in that: A plurality of first limiting grooves (410) are recessed on the spline shaft (41), and limiting convex portions (421) matched with the first limiting grooves (410) are arranged in the spline nut (42).

4. A double-power-driven variable-spacing module according to claim 3, characterized in that: A second limiting groove (422) is arranged at the central position of the spline nut (42). The first driving device (3) includes a first driving motor (30) arranged on one side of the machine base (1) and a roller (31) horizontally arranged on one side of the spline shaft (41). Both ends of the roller (31) are rotatably supported on both sides of the machine base (1), and one end is connected to the first driving motor (30) through a first transmission device (32). Second guide grooves (310) corresponding to the number of the slide base groups (2) are arranged at intervals on the roller (31). A third transmission device (16) is arranged in the inner cavity of the machine base (1), and the third transmission device (16) is respectively connected to the second guide grooves (310) and the second limiting groove (422).

5. A double-power-driven variable-spacing module according to claim 4, characterized in that: The third transmission device (16) includes a first guide rail (11), on which a first slider (12) corresponding to the number of the second guide grooves (310) is movably arranged. A second guide block (120) that cooperates with the second guide groove (310) protrudes from the first slider (12). A fixing portion (121) extends upward from one side of the first slider (12), and a limiting block (122) that cooperates with the second limiting groove (422) is arranged on the fixing portion (121).

6. The dual-power drive variable pitch module according to claim 4, wherein: The first transmission device (32) includes a first transmission wheel (320) arranged at one end of the first drive motor (30), a second transmission wheel (321) arranged at one end of the roller (31), and a first transmission belt (322) connecting the first transmission wheel (320) and the second transmission wheel (321).

7. The dual-power drive variable pitch module according to claim 2, wherein: The second transmission device (43) includes a third transmission wheel (430) arranged at one end of the second drive motor (40), a fourth transmission wheel (431) arranged at one end of the spline shaft (41), and a second transmission belt (432) connecting the third transmission wheel (430) and the fourth transmission wheel (431).

8. The dual-power drive variable pitch module according to claim 1, wherein: Two second guide rails (13) are symmetrically arranged on both sides of the top of the machine base (1), and a second slider (14) that cooperates with the second guide rail (13) is arranged at the bottom end of the sliding seat (20).

9. The dual-power drive variable pitch module according to claim 2, wherein: A support portion (15) is arranged in the machine base (1), and the spline shaft (41) is sleeved at the top end of the support portion (15).

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