Double-cam variable-pitch module

Abstract

The invention discloses a double-cam variable-pitch module which comprises a machine base provided with a channel. The first rotating roller is arranged in the inner cavity of the machine base, a guide groove is formed in the first rotating roller, and a first transmission device is arranged at one end of the first rotating roller; the second rotating roller is arranged on the side edge of the first rotating roller, the guide groove in the second rotating roller and the guide groove in the first rotating roller are arranged in a staggered mode, and a second transmission device is arranged at one end of the second rotating roller; the sliding seats are arranged above the machine base, the number of the sliding seats corresponds to that of the guide grooves, and guide blocks are arranged at the bottoms of the sliding seats; the driving device is arranged on one side of the machine base and connected with the first rotating roller through a transmission piece, the two rotating rollers are horizontally arranged, staggered guide grooves are machined in the two rotating rollers, stations are increased for the variable-pitch module, it is ensured that excessive guide grooves do not need to be additionally formed in one rotating roller, the working efficiency is improved, and the working efficiency is improved. Therefore, the situation that the walls between the guide grooves machined in the rotating roller are too thin or the adjacent guide grooves intersect is caused.

Description

Technical Field

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

[0002] Modular design is an important trend in modern industrial design, which aims to improve design efficiency and product quality while reducing costs and risks. As a key technology in modular design, variable pitch module is highly flexible and intelligent.

[0003] Most of the variable pitch modules currently on the market are cam variable pitch modules, which are mainly equal-pitch mechanisms realized by the rotation of the camshaft. They are a type of mechanism that changes the distance of the slide carried on the roller by machining a spiral guide groove on the roller. Therefore, when the number of slides increases, the number of guide grooves on the roller also increases. Too many guide grooves will cause the walls between adjacent guide grooves to be too thin, and even the guide grooves will intersect.

[0004] Based on the above reasons, it is necessary to improve the existing technology. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] The present invention is aimed at the above defects existing in the prior art, and specifically proposes a dual cam variable pitch module to solve the problems raised in the above background technology.

[0007] 2. Technical Solution

[0008] In order to solve the above technical problems, the present invention provides a dual-cam variable pitch module, comprising a base, wherein the base is provided with a channel communicating with its internal cavity;

[0009] A first rotating roller, the first rotating roller is arranged in the inner cavity of the machine base, and the two sides are rotatably supported at the two ends of the machine base, the first rotating roller is provided with a plurality of guide grooves, and a first transmission device is provided at one end of the first rotating roller;

[0010] A second rotating roller, the second rotating roller is horizontally arranged at the side of the first rotating roller, and the two sides of the second rotating roller are rotatably supported at the two ends of the machine base, the guide groove on the second rotating roller is staggered with the guide groove on the first rotating roller, and a second transmission device used in conjunction with the first transmission device is arranged on one end of the second rotating roller;

[0011] A slide seat, the slide seat is movably arranged above the machine base, the number of the slide seats corresponds to the number of the guide grooves, and a guide block is arranged at the bottom of the slide seat, and the guide block passes through the channel and cooperates with the guide groove;

[0012] A driving device is arranged on one side of the machine base and connected to the first rotating roller through a transmission member.

[0013] In the above technical solution, a plurality of guide rails are arranged on the top of the machine base, and a sliding block for use in conjunction with the guide rails is fixedly arranged on the bottom of the slide seat.

[0014] In the above technical solution, a plurality of position sensors are arranged at intervals on the side of the machine base, and a sensing strip used in conjunction with the position sensor is fixedly arranged on one side of the slide seat at the sidemost side.

[0015] In the above technical solution, the first transmission device includes a first gear and a second gear mounted on the first roller, and the second transmission device includes a third gear and a fourth gear mounted on the second roller. The first gear and the third gear can change their positions left and right until the two gears are meshed, and the second gear and the fourth gear can change their positions left and right until the two gears are meshed. The first gear and the second gear are fixed by screws, and the third gear and the fourth gear are fixed by screws.

[0016] In the above technical solution, the transmission member is a first synchronous pulley sleeved on one end of the first roller, a second synchronous pulley sleeved on one end of the driving device, and a synchronous belt for connecting the transmission.

[0017] In the above technical solution, a plurality of fixing blocks are fixedly arranged at the bottom of the inner cavity of the base, the fixing blocks are clamped between the first rotating roller and the second rotating roller, and the two sides thereof are respectively provided with accommodating grooves for fitting the first rotating roller and the second rotating roller.

[0018] In the above technical solution, the driving device is a driving motor.

[0019] 3. Beneficial Effects

[0020] Compared with the prior art, the present invention has the following beneficial effects: the present invention has two horizontally arranged rollers, and by processing staggered guide grooves on the two rollers, the variable pitch module can increase the workstation, while ensuring that there is no need to add excessive guide grooves on one roller, which would cause the walls between the guide grooves processed on the rollers to be too thin or adjacent guide grooves to intersect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a partial structural schematic diagram of the bottom of the present invention.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0024] Figure 4 It is a partial structural schematic diagram of the present invention.

[0025] In the figure: 1 is a machine base, 10 is a channel, 100 is a guide groove, 11 is a guide rail, 12 is a position sensor, 13 is a fixed block, 14 is a receiving groove, 2 is a first roller, 21 is a first transmission device, 210 is a first gear, 211 is a second gear, 3 is a second roller, 31 is a second transmission device, 310 is a third gear, 311 is a fourth gear, 4 is a slide seat, 40 is a guide block, 41 is a slider, 42 is a sensor strip, 5 is a driving device, 50 is a transmission member, 500 is a first synchronous pulley, 501 is a second synchronous pulley, and 502 is a synchronous belt. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] See also Figure 1-4 The present invention provides a dual-cam variable pitch module, comprising a base 1, wherein the base 1 is provided with a channel 10 communicating with an internal cavity thereof;

[0028] A first rotating roller 2, wherein the first rotating roller 2 is arranged in the inner cavity of the machine base 1, and both sides are rotatably supported at two ends of the machine base 1, a plurality of guide grooves 100 are arranged on the first rotating roller 2, and a first transmission device 21 is arranged on one end of the first rotating roller 2;

[0029] A second rotating roller 3, the second rotating roller 3 is horizontally arranged at the side of the first rotating roller 2, and the two sides of the second rotating roller 3 are rotatably supported at the two ends of the machine base 1, the guide groove 100 on the second rotating roller 2 is staggered with the guide groove 100 on the first rotating roller 2, and a second transmission device 31 used in conjunction with the first transmission device 21 is arranged on one end of the second rotating roller 2;

[0030] A slide 4, wherein the slide 4 is movably arranged above the machine base 1, the number of the slides 4 corresponds to the number of the guide grooves 100, and a guide block 40 is arranged at the bottom thereof, and the guide block 40 passes through the channel 10 and cooperates with the guide groove 100;

[0031] The driving device 5 is arranged at one side of the machine base 1 and is connected to the first rotating roller 2 through a transmission member 50 .

[0032] In the above structure, a first rotating roller and a horizontally arranged second rotating roller are arranged on the pitch variable module, and the guide grooves between the two rotating rollers are arranged in a staggered manner, so that the slide seat can be provided with staggered guide blocks to respectively cooperate with the guide grooves on the rotating rollers on both sides. The number of slide seats of the pitch variable module is doubled without increasing the number of guide grooves on the rotating rollers, thereby increasing the working efficiency of the overall pitch variable module. At the same time, it can prevent the occurrence of a situation in which the walls between the guide grooves are too thin or the guide grooves intersect due to adding guide grooves on a single rotating roller.

[0033] Specifically, a plurality of guide rails 11 are arranged on the top of the machine base 1, and a slider 41 is fixedly arranged on the bottom of the slide seat 4 for use with the guide rails 11. The cooperation between the guide rails and the slider can play a guiding role, and the cooperation between the two has the advantages of high precision and high stability.

[0034] Specifically, a plurality of position sensors 12 are arranged at intervals on the side of the base 1, and a sensing strip 42 for use with the position sensor 12 is fixedly arranged on one side of the slide 4 at the sidemost side. The cooperation between the position sensor and the sensing strip enables the position of the slide at the sidemost side to be recorded by the position sensor. When the variable pitch module is shut down and restarted due to sudden problems such as power failure, the slide can be returned to its initial position through the cooperation between the position sensor and the sensing strip.

[0035] Specifically, the first transmission device 21 includes a first gear 210 and a second gear 211 sleeved on the first roller 2, and the second transmission device 31 includes a third gear 310 and a fourth gear 311 sleeved on the second roller 3. The first gear 210 and the third gear 310 can change their positions left and right until the two gears are meshed, and the second gear 211 and the fourth gear 311 can change their positions left and right until the two gears are meshed. The first gear 210 and the second gear 211 are fixed by screws, and the third gear 310 and the fourth gear 311 are fixed by screws. The first transmission device is divided into a first gear and a second gear sleeved on the first roller, and the second transmission device is divided into a third gear and a fourth gear sleeved on the second roller. At the same time, the four gears can be adjusted left and right. When installing the transmission device, the user can move the first gear and the third gear to make the two gears mesh with each other, adjust the positions of the second gear and the fourth gear to make the two mesh, and then fix the first gear with the second gear, and the third gear with the fourth gear respectively by screws, so that the first transmission device and the second transmission device are fully meshed to prevent the transmission efficiency from being reduced due to the gap.

[0036] Specifically, the transmission member 50 is a first synchronous pulley 500 mounted on one end of the first roller 2, a second synchronous pulley 501 mounted on one end of the driving device 5, and a synchronous belt 502 for connecting the transmission. Using synchronous pulleys and synchronous belts as transmission members has the advantages of accurate and stable transmission, high efficiency and energy saving.

[0037] Specifically, a plurality of fixing blocks 13 are fixedly provided at the bottom of the inner cavity of the machine base 1, and the fixing block 13 is clamped between the first roller 2 and the second roller 3, and recessed receiving grooves 14 for fitting the first roller 2 and the second roller 3 are respectively provided on both sides thereof. Guide grooves are provided on the rollers, so that the rollers themselves are relatively fragile and cannot bear their own weight. The recessed receiving grooves on both sides of the fixing block are used to support the first roller and the second roller to help the two rollers share their own downward gravity, and at the same time, the positions of the first roller and the second roller can be effectively fixed, thereby achieving the effect of limiting and fixing.

[0038] Specifically, the driving device 5 is a driving motor. Using a driving motor as a driving device has the advantages of high efficiency and energy saving, high reliability, and small space occupation.

[0039] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A dual cam variable pitch module, characterized in that: include: A machine base (1), wherein the machine base (1) is provided with a channel (10) communicating with an internal cavity thereof; A first rotating roller (2), the first rotating roller (2) being arranged in the inner cavity of the machine base (1), and being rotatably supported on both sides at the two ends of the machine base (1), the first rotating roller (2) being provided with a plurality of guide grooves (100), and a first transmission device (21) being provided at one end of the first rotating roller (2); a second rotating roller (3), the second rotating roller (3) being horizontally arranged on the side of the first rotating roller (2), and having two sides thereof being rotatably supported at two ends of the machine base (1), the guide groove (100) on the second rotating roller (2) being staggered with the guide groove (100) on the first rotating roller (2), and a second transmission device (31) for use in conjunction with the first transmission device (21) being arranged on one end of the second rotating roller (2); A slide seat (4), the slide seat (4) being movably arranged above the machine base (1), the number of the slide seats (4) corresponding to the number of the guide grooves (100), and a guide block (40) being arranged at the bottom thereof, the guide block (40) passing through the channel (10) and being used in cooperation with the guide groove (100); A driving device (5), wherein the driving device (5) is arranged on one side of the machine base (1) and is connected to the first rotating roller (2) via a transmission member (50).

2. A dual cam variable pitch module as claimed in claim 1, characterized in that: A plurality of guide rails (11) are arranged on the top of the machine base (1), and a sliding block (41) for use with the guide rails (11) is fixedly arranged on the bottom of the slide seat (4).

3. A dual cam variable pitch module as claimed in claim 1, characterized in that: A plurality of position sensors (12) are arranged at intervals on the side of the machine base (1), and a sensing strip (42) for use with the position sensor (12) is fixedly arranged on one side of the slide base (4) at the sidemost side.

4. A dual cam variable pitch module as claimed in claim 1, characterized in that: The first transmission device (21) comprises a first gear (210) and a second gear (211) sleeved on the first rotating roller (2); the second transmission device (31) comprises a third gear (310) and a fourth gear (311) sleeved on the second rotating roller (3); the first gear (210) and the third gear (310) can be changed in position leftward and rightward until the two gears are meshed; the second gear (211) and the fourth gear (311) can be changed in position leftward and rightward until the two gears are meshed; the first gear (210) and the second gear (211) are fixed by screws; and the third gear (310) and the fourth gear (311) are fixed by screws.

5. A dual cam variable pitch module as claimed in claim 1, characterized in that: The transmission member (50) comprises a first synchronous pulley (500) sleeved on one end of the first rotating roller (2), a second synchronous pulley (501) sleeved on one end of the driving device (5), and a synchronous belt (502) for connecting the transmission.

6. A dual cam variable pitch module as claimed in claim 1, characterized in that: A plurality of fixing blocks (13) are fixedly arranged at the bottom of the inner cavity of the machine base (1); the fixing blocks (13) are clamped between the first rotating roller (2) and the second rotating roller (3), and receiving grooves (14) for fitting the first rotating roller (2) and the second rotating roller (3) are respectively provided on both sides thereof.

7. A dual cam variable pitch module as claimed in claim 1, characterized in that: The driving device (5) is a driving motor.

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