Cam roller turntable mechanism with adjustable transmission clearance

Abstract

The utility model discloses a cam roller rotary table mechanism with an adjustable transmission gap, and particularly relates to the technical field of rotary tables, the cam roller rotary table mechanism comprises a fixed box, two gear assemblies are arranged at the top of the fixed box, each gear assembly comprises a gear and a connecting seat, the top ends of the two connecting seats are fixedly connected with the two gears respectively, and the two connecting seats are arranged on the fixed box. A moving assembly is arranged in the fixed box and comprises a first motor, a lead screw, a sliding rod, two sliding blocks, a fixed seat and a first stand column, the first motor is fixedly installed on one side in the fixed box, the end of an output shaft of the first motor is fixedly connected with the lead screw, and one end of the lead screw is movably connected with the fixed box through a bearing. The first motor works to drive the lead screw to rotate, so that one gear is driven to move horizontally, the distance between the two gears is adjusted according to requirements, operation is easy, the distance between the two gears can be finely adjusted according to the friction degree of the two gears, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of turntables, and more specifically, the utility model relates to a cam roller turntable mechanism with adjustable transmission clearance. Background Art

[0002] A cam roller turntable mechanism is a mechanical device that realizes intermittent motion by pushing the roller to move through the cam contour, and is widely used in machining centers that require high precision and high efficiency. Most traditional cam turntables use a single worm and single worm gear transmission method to achieve power transmission. However, when using this transmission method, after long-term use, due to inevitable wear between the two.

[0003] After retrieval, the Chinese patent with the publication number CN218017079U discloses a hobbing horizontal cam turntable mechanism. Through the cooperation of a housing, a motor, a transmission mechanism, a turntable, a rotating shaft, a worm gear and a worm, through the meshing of the worm and the worm gear, and the directions of the thread grooves on the two worms are opposite, the two worms mesh with the worm gear, so that the worm gear rotates in the same direction. The rotation of the worm gear drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the cooperation of the limiting groove, the movable rod, the positioning groove and the positioning block to drive the turntable to rotate. This cam turntable mechanism realizes the simultaneous action of the two worms on the worm gear. Even when one worm is damaged, the other worm can still drive the rotating shaft to rotate through the meshing action with the worm gear, greatly improving the power transmission accuracy and transmission stability.

[0004] When the above turntable mechanism is in use, the two turntable bodies are meshed with each other through two gears. During the installation process of the two turntable bodies, it is inconvenient to finely adjust the clearance between the two gears according to the friction degree of the gears. Through fine adjustment, the clearance between the teeth can be kept in the optimal state at all times, and the use effect is poor. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cam roller turntable mechanism with adjustable transmission clearance, aiming to solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical solution: a cam roller turntable mechanism with adjustable transmission clearance, which includes a fixed box. Two gear assemblies are provided on the top of the fixed box. Each of the two gear assemblies includes a gear and a connecting seat. The tops of the two connecting seats are respectively fixedly connected to the two gears. A moving component is arranged inside the fixed box. The moving component includes a first motor, a lead screw, a slide bar, two sliders, a fixed seat and a first column. The first motor is fixedly installed on one side inside the fixed box, and the end of the output shaft of the first motor is fixedly connected to the lead screw. One end of the lead screw is movably connected to the fixed box through a bearing. Both ends of the slide bar are fixedly connected to the fixed box. The two sliders are respectively movably sleeved on the lead screw and the slide bar, and the opposite sides of the two sliders are both fixedly connected to the fixed seat. The bottom end of the first column is movably connected to the fixed seat through a bearing.

[0007] Furthermore, four locking bolts are provided on each of the two connecting seats, and one of the connecting seats is fixed to the first column through four of the locking bolts.

[0008] Furthermore, a rotating component is arranged inside the fixed box. The rotating component includes a second motor, a rotating shaft, a worm, a worm gear and a second column.

[0009] Furthermore, the second motor is fixedly installed on one side inside the fixed box, and the end of the output shaft of the second motor is fixedly connected to the rotating shaft. One end of the rotating shaft is movably connected to the fixed box through a bearing. The worm is fixedly sleeved on the rotating shaft. The worm gear meshes with the worm, and the top end of the worm gear is fixedly connected to the second column.

[0010] Furthermore, the second column is movably connected to the top end of the fixed box through a bearing, and the second column is fixed to the other connecting seat through another four locking bolts.

[0011] It can be seen that in the above technical solution, the two connecting seats are respectively fixedly installed on the tops of the first column and the second column through multiple locking bolts, and similarly, the two connecting seats can be disassembled.

[0012] Furthermore, gaskets are movably arranged on the tops of the second column and the first column, and the tops of the two gaskets are respectively in contact with the two connecting seats.

[0013] It can be seen that in the above technical solution, the stability between the two connecting seats and the first column and the second column can be improved.

[0014] Furthermore, side plates are fixedly connected to the front and rear edge positions on both sides of the fixed box.

[0015] It can be seen that in the above technical solution, it is convenient to fix the fixed box.

[0016] Technical effects and advantages of the present utility model:

[0017] 1. When the first motor works, it drives the lead screw to rotate. The lead screw can drive the fixed seat to move horizontally, thereby driving the first column to move horizontally, and then driving one of the gears to move horizontally. The distance between the two gears can be adjusted according to requirements. The operation is simple, and the distance between the two gears can be finely adjusted according to the friction degree between them, and the use effect is good;

[0018] 2. When the second motor works, it drives the rotating shaft to rotate, thereby driving the worm to rotate. Since the worm meshes with the worm wheel, the worm can drive the worm wheel to rotate, thereby driving the second column to rotate, and then driving one of the gears to rotate. At the same time, the cooperation between the worm and the worm wheel can lock the second column. The structure is simple and the use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover.

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a top view of the overall structure of the present utility model;

[0022] Figure 3 is a schematic diagram of the assembled structure of the cross-section of the fixed box and the rotating assembly of the present utility model;

[0023] Figure 4 is a schematic diagram of the assembled structure of the rotating assembly and the gasket of the present utility model;

[0024] Figure 5 is a schematic diagram of the assembled structure of the moving assembly and the gasket of the present utility model;

[0025] Figure 6 is a schematic diagram of the assembled structure of the gear assembly and the gasket of the present utility model.

[0026] In the figure: 1, fixed box; 2, gear assembly; 3, moving assembly; 4, rotating assembly; 5, side plate; 6, gasket; 201, gear; 202, connecting seat; 203, locking bolt; 301, first motor; 302, lead screw; 303, slide bar; 304, slider; 305, fixed seat; 306, first column; 401, second motor; 402, rotating shaft; 403, worm; 404, worm gear; 405, second column. Detailed implementation mode

[0027] The following specific embodiments illustrate the implementation mode of the present invention. Those skilled in this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope protected by the present invention.

[0028] Refer to the attached instruction manual Figure 1-6 As shown in the figure, a cam roller turntable mechanism with adjustable transmission clearance in this embodiment includes a fixed box 1. There are two gear assemblies 2 arranged on the top of the fixed box 1. Both gear assemblies 2 include a gear 201 and a connecting seat 202. The tops of the two connecting seats 202 are respectively fixedly connected to the two gears 201. A moving assembly 3 is arranged inside the fixed box 1. The moving assembly 3 includes a first motor 301, a lead screw 302, a slide bar 303, two sliders 304, a fixed seat 305 and a first column 306. The first motor 301 is fixedly installed on one side inside the fixed box 1, and the end of the output shaft of the first motor 301 is fixedly connected to the lead screw 302. One end of the lead screw 302 is movably connected to the fixed box 1 through a bearing. Both ends of the slide bar 303 are fixedly connected to the fixed box 1. The two sliders 304 are respectively movably sleeved on the lead screw 302 and the slide bar 303, and the opposite sides of the two sliders 304 are both fixedly connected to the fixed seat 305. The bottom end of the first column 306 is movably connected to the fixed seat 305 through a bearing.

[0029] Furthermore, four locking bolts 203 are arranged on both connecting seats 202, and one of the connecting seats 202 is fixed to the first column 306 through four of the locking bolts 203.

[0030] Furthermore, a rotating assembly 4 is arranged inside the fixing box 1. The rotating assembly 4 includes a second motor 401, a rotating shaft 402, a worm 403, a worm gear 404 and a second upright post 405. The second motor 401 is fixedly installed on one side inside the fixing box 1, and the end of the output shaft of the second motor 401 is fixedly connected to the rotating shaft 402. One end of the rotating shaft 402 is movably connected to the fixing box 1 through a bearing. The worm 403 is fixedly sleeved on the rotating shaft 402. The worm gear 404 meshes with the worm 403, and the top of the worm gear 404 is fixedly connected to the second upright post 405. The second upright post 405 is movably connected to the top of the fixing box 1 through a bearing, and the second upright post 405 is fixed to another connecting seat 202 through another four locking bolts 203. Gaskets 6 are movably arranged at the tops of the second upright post 405 and the first upright post 306, and the tops of the two gaskets 6 are respectively in contact with the two connecting seats 202.

[0031] Among them, when the second motor 401 is started, the second motor 401 works to drive the rotating shaft 402 to rotate, thereby driving the worm 403 to rotate. Since the worm 403 meshes with the worm gear 404, the worm 403 can drive the worm gear 404 to rotate, thereby driving the second upright post 405 to rotate, and further driving one of the gears 201 to rotate. At the same time, the worm 403 and the worm gear 404 cooperate to lock the second upright post 405. The structure is simple and convenient to use.

[0032] Furthermore, side plates 5 are fixedly connected to the front and rear edge positions on both sides of the fixing box 1 to facilitate the fixing of the fixing box 1.

[0033] The usage method of this embodiment is as follows:

[0034] When in use, the staff starts the first motor 301. The first motor 301 works to drive the lead screw 302 to rotate. Since one of the sliders 304 is threadedly connected to the lead screw 302 and the other slider 304 cooperates with the slide bar 303 to restrict the rotation of the fixing seat 305, the lead screw 302 can drive the fixing seat 305 to move horizontally, thereby driving the first upright post 306 to move horizontally, and further driving one of the gears 201 to move horizontally. Adjust the distance between the two gears 201 according to the requirements. The operation is simple, and the distance between the two gears can be finely adjusted according to the friction degree of the two gears. The use effect is good. The two connecting seats 202 are respectively fixedly installed on the tops of the first upright post 306 and the second upright post 405 through a plurality of locking bolts 203. Similarly, the two connecting seats 202 are disassembled. The two gaskets 6 can improve the stability between the two connecting seats 202 and the first upright post 306 and the second upright post 405. Finally, the turntable component is installed on the gear 201.

[0035] It should be noted that the first motor 301 is internally provided with an electromagnetic locking structure. The content not described in detail in the specification belongs to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art, and will not be described here either.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cam roller turntable mechanism with adjustable transmission clearance, comprising a fixed box (1), and two gear assemblies (2) are arranged on the top of the fixed box (1), characterized in that: Each of the two gear assemblies (2) includes a gear (201) and a connecting seat (202). The tops of the two connecting seats (202) are respectively fixedly connected to the two gears (201). A moving assembly (3) is provided inside the fixed box (1). The moving assembly (3) includes a first motor (301), a lead screw (302), a slide bar (303), two sliders (304), a fixed seat (305) and a first column (306). The first motor (301) is fixedly installed on one side inside the fixed box (1), and the end of the output shaft of the first motor (301) is fixedly connected to the lead screw (302). One end of the lead screw (302) is movably connected to the fixed box (1) through a bearing. Both ends of the slide bar (303) are fixedly connected to the fixed box (1). The two sliders (304) are respectively movably sleeved on the lead screw (302) and the slide bar (303), and the opposite sides of the two sliders (304) are both fixedly connected to the fixed seat (305). The bottom end of the first column (306) is movably connected to the fixed seat (305) through a bearing.

2. The cam roller turntable mechanism with adjustable transmission clearance according to claim 1, wherein: Four locking bolts (203) are provided on each of the two connecting seats (202), and one of the connecting seats (202) is fixed to the first column (306) through four of the locking bolts (203).

3. The cam roller turntable mechanism with adjustable transmission clearance according to claim 1, wherein: A rotating assembly (4) is provided inside the fixed box (1). The rotating assembly (4) includes a second motor (401), a rotating shaft (402), a worm (403), a worm gear (404) and a second column (405).

4. The cam roller turntable mechanism with adjustable transmission clearance according to claim 3, characterized in that: The second motor (401) is fixedly installed on one side inside the fixed box (1), and the end of the output shaft of the second motor (401) is fixedly connected to the rotating shaft (402). One end of the rotating shaft (402) is movably connected to the fixed box (1) through a bearing. The worm (403) is fixedly sleeved on the rotating shaft (402). The worm gear (404) meshes with the worm (403), and the top of the worm gear (404) is fixedly connected to the second column (405).

5. The cam roller turntable mechanism with adjustable transmission clearance according to claim 3, characterized in that: The second column (405) is movably connected to the top of the fixed box (1) through a bearing, and the second column (405) is fixed to the other connecting seat (202) through another four locking bolts (203).

6. The cam roller turntable mechanism with adjustable transmission clearance according to claim 3, wherein: Gaskets (6) are movably provided at the tops of the second column (405) and the first column (306), and the tops of the two gaskets (6) are respectively in contact with the two connecting seats (202).

7. The cam roller turntable mechanism with adjustable transmission clearance according to claim 1, characterized in that: Side plates (5) are fixedly connected to the front and rear edge positions on both sides of the fixed box (1).

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