Cam type roller turntable structure capable of dissipating heat

Abstract

The utility model discloses a cam type radiating roller turntable structure, which particularly relates to the technical field of worm transmission and comprises a shell, and a radiating mechanism is arranged on the outer side of the shell. The heat dissipation mechanism comprises a sleeve, one side of the sleeve is fixedly connected with the outer side of the shell, the outer side of the sleeve is fixedly connected with a plurality of clamping blocks, one side of each clamping block is fixedly connected with an air inlet fan, the outer side of the sleeve is fixedly connected with two clamping blocks, the bottoms of the clamping blocks are fixedly connected with arc-shaped clamping plates, and the inner walls of the arc-shaped clamping plates are fixedly connected with two filter screens. And one side of the shell is fixedly connected with two limiting blocks. According to the utility model, the heat dissipation mechanism is arranged to maintain a good ventilation environment in the housing, and the heat in the housing is further absorbed through the water cooling pipe, so that the temperature in the housing can be further controlled, and the temperature in the housing is prevented from being too high; and the efficiency and accuracy of meshing transmission among the driving gear, the transmission gear, the driven gear, the driving cam shaft and the roller bearing are kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to worm drive technical field, more specifically, the utility model relates to a cam type heat dissipation roller rotary table structure. BACKGROUND

[0002] Rotary table is also called rotary table, which is a machine tool with a rotatable table surface used to clamp workpieces and achieve rotation and indexing positioning, referred to as rotary table or fourth axis. Rotary table can be divided into worm gear drive rotary table and cam roller rotary table according to different rotation methods. Cam roller rotary table can eliminate the transmission gap inside the rotary table, improve the accuracy of workpieces and the stability of rotary motion during machining, and has the characteristics of low friction, no gap and high rigidity, so it is widely used in milling machines, drilling machines and other machining centers.

[0003] The existing cam roller rotary table usually includes a box body, a rotary table, a transmission mechanism and a driving motor. The rotary table is installed on the box body through a horizontal output shaft. The cam shaft of the transmission assembly is arranged below the output shaft and is perpendicular to the axis of the rotary table and is in rolling connection with the rollers on the output shaft. The driving motor is arranged at one end of the cam shaft and is fixed on one side of the box body. However, since the driving motor is arranged on the side of the box body, the rotary table needs to occupy a large installation space when installed in the machine tool, which cannot meet the installation requirements of compact machine tools.

[0004] Through the search, the patent with the application number CN202220154690.6 discloses an upper motor type cam roller rotary table. The utility model realizes the driving of the rotary table by arranging the driving motor above the box body and through a gear set, reduces the volume of the rotary table, makes the structure more compact, further reduces the required installation space, and meets the installation requirements of compact machine tools.

[0005] However, the above rotary table structure has the problem that during the long-term use of the rotary table, heat accumulates between the rollers in the rotary table and the driving cam shaft. After a long period of heat accumulation, the connection between the driving cam shaft and the rollers may not be tight enough. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cam type heat dissipation roller rotary table structure to solve the problems raised in the above background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] The utility model relates to a cam type heat dissipation roller turntable structure, including the shell, the shell outside is provided with heat dissipation mechanism, the heat dissipation mechanism includes sleeve, one side of sleeve is fixedly connected with the shell outside, a plurality of clamping blocks are fixedly connected on the sleeve outside, the clamping block one side is fixedly connected with the air inlet fan, the sleeve outside is fixedly connected with two clamping blocks, the clamping block bottom is fixedly connected with the arc clamping plate, and the arc clamping plate inner wall is fixedly connected with two filter screens, the shell one side is fixedly connected with two limit blocks, the limit block inner wall is slidably connected with the filter plate, the water cooling pipe is fixedly installed in the shell inside, the water cooling tank is arranged at the bottom of shell, and the water cooling tank output and input are all fixedly connected with water cooling pipe, and the water cooling tank one side is installed with the exhaust fan.

[0009] By adopting the above technical scheme, the inside of the shell can be ventilated and cooled, the accumulation of a large amount of heat in the inside of the shell is avoided, the working temperature of the roller bearing and the driving cam shaft is reduced, the surface quality of the roller bearing and the driving cam shaft is protected, and the service life is prolonged.

[0010] As a further description of the above technical scheme, the inside of the shell is fixedly connected with a positioning plate, the inside of the shell is provided with a motor, the output end of the motor is fixedly connected with a driving gear, the top of the driving gear is engaged with a transmission gear, the top of the transmission gear is engaged with a driven gear, one side of the driven gear is fixedly connected with a driving cam shaft, the bottom of the shell is fixedly connected with a positioning ring, the outside of the positioning ring is movably connected with a transmission shaft, and the transmission shaft is provided with a roller bearing.

[0011] By adopting the above technical scheme, the transmission shaft can rotate more precisely in the inside of the shell through the meshing transmission of the driving cam shaft and the roller bearing.

[0012] As a further description of the above technical scheme, the top of the transmission shaft is provided with a turntable transmission mechanism, the turntable transmission mechanism includes a transmission disc, the bottom of the transmission disc is fixedly connected with the top of the transmission shaft, a plurality of fixed columns are fixedly connected in the transmission disc, the top of the fixed column is threadedly connected with a connecting block, and the upper surface of the transmission disc is movably connected with a turntable.

[0013] By adopting the above technical scheme, different sizes of turntables can be replaced conveniently, and the application range of the turntable is improved.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. By setting the heat dissipation mechanism, compared with the prior art, the good ventilation environment inside the shell is maintained, and the heat inside the shell is further absorbed by the water cooling pipe, so that the temperature inside the shell can be further controlled, the efficiency and accuracy of meshing transmission between the driving gear, the transmission gear, the driven gear, the driving cam shaft and the roller bearing are avoided.

[0016] 2. By setting the rotating disc transmission mechanism, compared with the prior art, different diameter rotating discs can be replaced, the rotating table can be fixed with rotating discs of different sizes, the use range of the rotating table is expanded, and the applicability of the rotating table is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model.

[0018] Figure 2 It is the front side structure schematic diagram of the utility model.

[0019] Figure 3 It is the rear side structure schematic diagram of the utility model.

[0020] Figure 4 It is the transmission disc connection place local schematic diagram of the utility model.

[0021] Figure 5 It is the sleeve connection place local schematic diagram of the utility model.

[0022] Figure 6 It is the arc-shaped clamping plate connection place local schematic diagram of the utility model.

[0023] The figure mark is: 1, shell, 2, sleeve, 3, clamping block, 4, air inlet fan, 5, clamping block, 6, arc-shaped clamping plate, 7, filter screen, 8, limiting block, 9, filter plate, 10, water cooling pipe, 11, water cooling box, 12, air outlet fan, 13, positioning plate, 14, motor, 15, driving gear, 16, transmission gear, 17, driven gear, 18, driving cam shaft, 19, positioning ring, 20, transmission shaft, 21, roller bearing, 22, transmission disc, 23, fixed column, 24, connecting block, 25, rotating disc. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0025] The embodiment of the application discloses a cam type heat-dissipating roller turntable structure, which comprises an outer shell 1, and a heat-dissipating mechanism is arranged outside the outer shell 1; the heat-dissipating mechanism comprises a sleeve 2, one side of the sleeve 2 is fixedly connected with the outer side of the outer shell 1, a plurality of clamping blocks 3 are fixedly connected with the outer side of the sleeve 2, one side of the clamping block 3 is fixedly connected with an air inlet fan 4, two clamping blocks 5 are fixedly connected with the outer side of the sleeve 2, an arc-shaped clamping plate 6 is fixedly connected with the inner wall of the arc-shaped clamping plate 6, and two filter screens 7 are fixedly connected with the inner wall of the arc-shaped clamping plate 6; two limiting blocks 8 are fixedly connected with one side of the outer shell 1, a filter plate 9 is slidably connected with the inner wall of the limiting block 8, a water-cooling pipe 10 is fixedly installed in the outer shell 1, a water-cooling box 11 is arranged at the bottom of the outer shell 1, the output end and the input end of the water-cooling box 11 are fixedly connected with the water-cooling pipe 10, and an air outlet fan 12 is installed at one side of the water-cooling box 11; the air inlet fan 4 ventilates the inside of the outer shell 1, and then the heat in the inside of the outer shell 1 is absorbed by the water-cooling pipe 10 and the water-cooling box 11, so that the inside of the outer shell 1 is kept at a proper temperature, the friction coefficient between a driving cam shaft 18 and a roller bearing 21 is kept at a low level, and therefore the transmission efficiency and the working efficiency of the turntable are improved.

[0026] Referring to Figure 1 As shown in the figure, the inside of the outer shell 1 is fixedly connected with a positioning plate 13, a motor 14 is installed in the inside of the outer shell 1, the output end of the motor 14 is fixedly connected with a driving gear 15, the top of the driving gear 15 is engaged with a transmission gear 16, the top of the transmission gear 16 is engaged with a driven gear 17, one side of the driven gear 17 is fixedly connected with the driving cam shaft 18, the bottom of the outer shell 1 is fixedly connected with a positioning ring 19, the outer side of the positioning ring 19 is movably connected with a transmission shaft 20, the outer side of the transmission shaft 20 is installed with the roller bearing 21, the motor 14 drives the driving cam shaft 18 and the roller bearing 21 to threadedly drive through the engagement transmission of the driving gear 15, the transmission gear 16 and the driven gear 17, so that the roller bearing 21 can drive the transmission shaft 20 to stably rotate in the inside of the outer shell 1.

[0027] Referring to Figure 4 As shown in the figure, the top of the transmission shaft 20 is provided with a turntable transmission mechanism, the turntable transmission mechanism comprises a transmission disc 22, the bottom of the transmission disc 22 is fixedly connected with the top of the transmission shaft 20, a plurality of fixed columns 23 are fixedly connected with the inside of the transmission disc 22, the top of the fixed column 23 is threadedly connected with a connecting block 24, a turntable 25 is movably connected with the upper surface of the transmission disc 22, and the turntable 25 can be taken off from above the transmission disc 22 by screwing the plurality of connecting blocks 24, so that the turntable 25 is convenient to replace.

[0028] The utility model discloses a working principle: when installing the cam rotor rotary table, first, the mounting plate of the outer shell 1 outside is fixed with screw in the lathe inside, then starts motor 14 and drives driving gear 15 to rotate, and driving gear 15 is engaged to transmission gear 16 drive, and transmission gear 16 rotates, and then transmission gear 16 is engaged to driven gear 17 drive, and driven gear 17 drives driving cam shaft 18 to rotate in the process of rotating, and driving cam shaft 18 is screwed to the transmission of the roller bearing 21 outside transmission shaft 20 in the process of rotating, and makes the roller bearing 21 drive transmission shaft 20 rotate on the positioning ring 19 in the outer shell 1, then transmission shaft 20 drives transmission disc 22 to rotate on the outside of the outer shell 1, before the rotary table is used, can first unscrew a plurality of connecting blocks 24 from the top of fixed column 23, and the size of rotating disc 25 is replaced, so that transmission disc 22 can drive rotating disc 25 of different sizes to rotate, then after long time use, the air inlet fan 4 blows the inside of the outer shell 1, and the heat generated between driving gear 15, transmission gear 16, driven gear 17, driving cam shaft 18 and roller bearing 21 in the inside of the outer shell 1 is blown to the other side of the outer shell 1, and water cooling tank 11 absorbs the heat in the inside of the outer shell 1 through water cooling pipe 10, so that the temperature in the inside of the outer shell 1 is reduced, finally, filter screen 7 and filter plate 9 can be pulled out from the inside of sleeve 2 and two limit blocks 8 respectively, which is convenient for cleaning filter screen 7 and filter plate 9, so that filter screen 7 and filter plate 9 maintain good ventilation.

[0029] The contents not described in detail in the specification all belong to the prior art known to those skilled in the art, and the model parameters of various electric appliances are not specifically limited, and conventional equipment can be used, in the technical scheme, the electric appliance control elements not mentioned belong to the prior art, so they are not shown in the drawings, and will not be described here.

[0030] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, so: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A cam type heat-dissipatable roller turntable structure comprising a housing (1), characterized in that: The shell (1) is provided with a heat dissipation mechanism outside; The heat dissipation mechanism comprises a sleeve (2), one side of the sleeve (2) is fixedly connected with the outside of the shell (1), a plurality of clamping blocks (3) are fixedly connected with the outside of the sleeve (2), one side of the clamping block (3) is fixedly connected with an air inlet fan (4), two clamping blocks (5) are fixedly connected with the outside of the sleeve (2), the bottom of the clamping block (5) is fixedly connected with an arc-shaped clamping plate (6), and the inner wall of the arc-shaped clamping plate (6) is fixedly connected with two filter screens (7). One side of the shell (1) is fixedly connected with two limiting blocks (8), the inner wall of the limiting block (8) is slidably connected with a filter plate (9), the inside of the shell (1) is fixedly installed with a water cooling pipe (10), the bottom of the shell (1) is provided with a water cooling box (11), and the output end and the input end of the water cooling box (11) are fixedly connected with the water cooling pipe (10).

2. The cam-type heat-dissipatable roller turntable structure according to claim 1, characterized in that: The inside of the shell (1) is fixedly connected with a positioning plate (13), and the inside of the shell (1) is installed with a motor (14).

3. The cam-type heat-dissipatable roller turntable structure according to claim 2, characterized in that: The output end of the motor (14) is fixedly connected with a driving gear (15), and the top of the driving gear (15) is engaged with a transmission gear (16).

4. The cam-type heat-dissipatable roller turntable structure according to claim 3, characterized in that: The top of the transmission gear (16) is engaged with a driven gear (17), and one side of the driven gear (17) is fixedly connected with a driving cam shaft (18).

5. The cam-type heat-dissipatable roller turntable structure according to claim 1, characterized in that: The bottom of the shell (1) is fixedly connected with a positioning ring (19), the outside of the positioning ring (19) is movably connected with a transmission shaft (20), and the outside of the transmission shaft (20) is installed with a roller bearing (21).

6. The cam-type heat-dissipatable roller turntable structure according to claim 5, characterized in that: The top of the transmission shaft (20) is provided with a turntable transmission mechanism, the turntable transmission mechanism comprises a transmission disc (22), the bottom of the transmission disc (22) is fixedly connected with the top of the transmission shaft (20), and the inside of the transmission disc (22) is fixedly connected with a plurality of fixed columns (23).

7. The cam-type heat-dissipatable roller turntable structure according to claim 6, characterized in that: The top of the fixed column (23) is threadedly connected with a connecting block (24), and the upper surface of the transmission disc (22) is movably connected with a turntable (25).

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