Power transmission mechanism of machine tool machining center

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a machine tool machining center power transmission mechanism which comprises a workbench and a transmission belt, the right end of the front side of the workbench is fixedly connected with a motor, the output end of the motor penetrates through the workbench and is fixedly connected with a first rotating shaft, and the left side of the bottom of the workbench is fixedly connected with a second rotating shaft. First rotating wheels are fixedly connected to the outer walls of the first rotating shaft and the second rotating shaft correspondingly, vertical plates are fixedly connected to the front side and the rear side of the bottom of the workbench correspondingly, grooves are formed in the two ends of the adjacent sides of the two vertical plates correspondingly, and first telescopic rods are fixedly connected to the bottoms of the inner sides of the multiple grooves correspondingly; and one end of each first telescopic rod is fixedly connected with a first moving block. In long-time use, if the tension of the transmission belt is insufficient, the distance between the first rotating wheel and the second rotating wheel is increased to improve the tension of the transmission belt, vibration is reduced by adjusting the tension of the transmission belt, and the stability of power transmission is improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to the power transmission mechanism of machine tool machining centers. Background Technology

[0002] A machine tool is a machine that processes metal blanks into machine parts. It is widely used in the machinery manufacturing industry. Machine tools use various cutting tools and precise movements to perform turning, milling and drilling on workpieces. They can process raw materials into parts with specific shapes, dimensional accuracy and surface quality according to predetermined design requirements. The use of machine tools greatly improves production efficiency and the processing quality of parts. During the use of machine tools, a power transmission mechanism is required to drive the machine parts to move.

[0003] The power transmission mechanism is one of the core components of a machine tool, transmitting power from the motor. Its main function is to ensure stable and efficient power transmission, drive machine parts to move, and enable precise cutting motion during machining. According to machining requirements, the speed and torque output by the motor are appropriately converted and distributed. Existing technology uses multiple gears to transmit power and move the machining table for convenient machining. However, in existing transmission mechanisms, the impact generated when the driving and driven gears engage and disengage during transmission, and the difference in speed and acceleration of the gear teeth at the moment of contact, result in vibration, causing wear on the gears and affecting the stability of power transmission. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a power transmission mechanism for machine tool machining centers, aiming to improve the problem that the power transmission mechanism of existing machine tool machining centers is prone to vibration during use, thus affecting the stability of power transmission.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a power transmission mechanism for a machine tool machining center, including a worktable and a transmission belt. A motor is fixedly connected to the front right end of the worktable. The output end of the motor passes through the worktable and is fixedly connected to a rotating shaft. A second rotating shaft is fixedly connected to the bottom left side of the worktable. A first rotating wheel is fixedly connected to the outer wall of both the first and second rotating shafts. Vertical plates are fixedly connected to the front and rear sides of the bottom of the worktable. Grooves are provided at both ends of adjacent sides of the two vertical plates. A telescopic rod is fixedly connected to the bottom of the inner side of each of the grooves. Each of the multiple telescopic rods has a movable block fixedly connected to one end, and a corresponding rotating shaft is rotatably connected to one side of each of the multiple movable blocks. Two rotating wheels are fixedly connected to the outer walls of the two rotating shafts. The multiple rotating wheels are respectively connected to the corresponding rotating wheels via a transmission belt. A sliding groove is provided on the top of the worktable, and a sliding block is slidably connected inside the sliding groove. The bottom of the sliding block is fixedly connected to the top of the transmission belt, and a cutting table is fixedly connected to the top of the sliding block. An installation mechanism is provided on the top of the worktable for installing blades.

[0006] As a further description of the above technical solution:

[0007] The installation mechanism includes a bracket, the bottom of which is fixedly connected to the top of the workbench. A telescopic rod II is fixedly connected to the bottom of the bracket, and a connecting block is fixedly connected to one end of the telescopic rod II. Connecting grooves are provided on the front and rear sides of the bottom of the connecting block. Fixed blocks are slidably connected to the inner sides of the two connecting grooves. Moving grooves are provided on the left and right sides of the two fixed blocks. Moving blocks II are slidably connected to the interior of the multiple moving grooves. Springs are provided on the outer sides of the two moving blocks II. Limit bolts are rotatably connected to the opposite sides of the two fixed blocks. One end of each limit bolt passes through the moving groove and is rotatably connected to a pressing block. The same clamping block is fixedly connected to the bottom of the two fixed blocks. A cutting blade is rotatably connected to the bottom of the clamping block.

[0008] As a further description of the above technical solution:

[0009] The workbench is fixedly connected to four corners at the top, and the bottom of each of the multiple support legs is fixedly connected to the same base plate.

[0010] As a further description of the above technical solution:

[0011] Support feet are fixedly connected to the four corners of the bottom of the base plate, and rubber pads are fixedly connected to the bottom of each of the support feet.

[0012] As a further description of the above technical solution:

[0013] Triangular plates are fixedly connected to both the left and right sides of the bracket, and the bottoms of the multiple triangular plates are fixedly connected to the top of the workbench.

[0014] As a further description of the above technical solution:

[0015] A switch is fixedly connected to the front left end of the workbench, and the switch is electrically connected to the motor, telescopic rod one, and telescopic rod two, respectively.

[0016] As a further description of the above technical solution:

[0017] Each of the multiple grooves has a sliding groove on its left and right sides, and each of the multiple movable blocks has a slider fixedly connected to its left and right sides. Each of the sliders is slidably connected to the interior of the corresponding sliding groove.

[0018] As a further description of the above technical solution:

[0019] The workbench has limit grooves on its top front and back sides, and the sliding block has limit blocks fixedly connected to its bottom front and back sides.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the motor is started by turning on the switch, which drives the first rotating shaft and the first rotating wheel to rotate, so that the cutting table can move to facilitate cutting. During long-term use, if the tension of the transmission belt is insufficient, multiple telescopic rods are activated to drive the third rotating shaft and the second rotating wheel to move downward, increasing the distance between the first rotating wheel and the second rotating wheel to improve the tension of the transmission belt. By adjusting the tension of the transmission belt, vibration is reduced and the stability of power transmission is increased.

[0022] 2. In this utility model, after the fixing block is inserted into the connecting groove, the limiting bolt is rotated, and the pressing block moves in the moving groove to press the moving block two, causing it to move outward to press the spring, thereby fixing the fixing block in the connecting groove. When disassembling, the limiting bolt is rotated to release the pressing block, the spring releases the pressure and rebounds, and the limiting of the fixing block is released, so that the blade can be disassembled. This fixing and disassembly method realizes the convenient installation and disassembly of the blade. Attached Figure Description

[0023] Figure 1 This is a perspective view of the power transmission mechanism of the machine tool machining center proposed in this utility model;

[0024] Figure 2 This is a structural cross-sectional view of the power transmission mechanism of the machine tool machining center proposed in this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0026] Figure 4This is a structurally exploded view of the mounting mechanism of the power transmission mechanism in the machine tool machining center proposed in this utility model;

[0027] Figure 5 This is a cross-sectional view of the fixed block structure of the power transmission mechanism of the machine tool machining center proposed in this utility model.

[0028] Legend:

[0029] 1. Workbench; 2. Mounting mechanism; 201. Bracket; 202. Telescopic rod II; 203. Connecting block; 204. Connecting groove; 205. Fixing block; 206. Moving groove; 207. Moving block II; 208. Spring; 209. Limiting bolt; 210. Pressing block; 211. Clamping block; 212. Cutting blade; 3. Motor; 4. Rotating shaft I; 5. Rotating shaft II; 6. Rotating wheel I; 7. Vertical plate; 8. Groove; 9. Telescopic rod I; 10. Moving block I; 11. Rotating shaft III; 12. Rotating wheel II; 13. Transmission belt; 14. Sliding groove; 15. Sliding block; 16. Cutting table; 17. Support leg; 18. Base plate; 19. Support foot; 20. Rubber pad; 21. Triangle plate; 22. Switch; 23. Sliding groove; 24. Slider; 25. Limiting groove; 26. Limiting block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a power transmission mechanism for a machine tool machining center, including a worktable 1 and a transmission belt 13. The worktable 1 serves as the basic support for the entire mechanism, providing mounting positions for other components. A motor 3 is fixedly connected to the front right end of the worktable 1. The motor 3 is the power source, providing power for subsequent transmission and driving other components. The output end of the motor 3 passes through the worktable 1 and is fixedly connected to a rotating shaft 4. The rotating shaft 4 can rotate under the drive of the motor 3, transmitting the power of the motor 3. A rotating shaft 5 is fixedly connected to the bottom left side of the worktable 1. The rotating shaft 5 supports and cooperates with other components to achieve stable transmission. The outer walls of the rotating shaft 4 and the rotating shaft 5 are both fixedly connected. There is a rotating wheel 6, which rotates with the rotating shaft 4 and the rotating shaft 5, driving the transmission belt 13 to move. Vertical plates 7 are fixedly connected to the front and rear sides of the bottom of the worktable 1. The vertical plates 7 serve to fix and support other components. Grooves 8 are provided at both ends of adjacent sides of the two vertical plates 7, providing space for other components to accommodate and move. Telescopic rods 9 are fixedly connected to the bottom inner sides of multiple grooves 8. The telescopic rods 9 extend and retract, adjusting the position of moving blocks 10. Moving blocks 10 are fixedly connected to one end of each telescopic rod 9, moving under the action of the telescopic rods 9 and changing their position. Corresponding rotating shafts 1 are rotatably connected to one side of each moving block 10. 1. The rotating shaft 3 11 can change position as the moving block 10 moves, and serves as the support and rotation center of the rotating wheel 2 12. The outer walls of both rotating shafts 3 11 are fixedly connected to the rotating wheel 2 12. The rotating wheel 2 12 cooperates with the rotating wheel 1 6 and the transmission belt 13 to realize transmission. The top of the worktable 1 is provided with a sliding groove 14, which provides a sliding path for the sliding block 15. The sliding block 15 is slidably connected inside the sliding groove 14, and the sliding block 15 can slide in the sliding groove 14. The bottom of the sliding block 15 is fixedly connected to the top of the transmission belt 13, so that the sliding block 15 can move with the movement of the transmission belt 13. The top of the sliding block 15 is fixedly connected to the cutting table 16, which drives the cutting. The table 16 moves to change the cutting position. The top of the workbench 1 is equipped with a mounting mechanism 2, which is used to install other parts or tools. The left and right sides of the multiple grooves 8 are provided with sliding grooves 23, which provide sliding tracks for the sliders 24. The left and right sides of the multiple moving blocks 10 are fixedly connected to the sliders 24, which slide in the sliding grooves 23 to ensure the stability of the moving blocks 10. The top front and rear sides of the workbench 1 are provided with limit grooves 25, which are used to restrict the movement of the limit blocks 26. The bottom front and rear sides of the sliding block 15 are fixedly connected to the limit blocks 26, which move in the limit grooves 25 to ensure the smoothness of the movement of the sliding block 15.

[0032] Reference Figure 4 and Figure 5The installation mechanism 2 includes a bracket 201, which provides a basic support structure for the entire mechanism, allowing the installation mechanism 2 to be stably placed on the workbench 1. The bottom of the bracket 201 is fixedly connected to the top of the workbench 1, ensuring a firm connection between the installation mechanism 2 and the workbench 1 and guaranteeing stability during operation. A telescopic rod 202 is fixedly connected to the bottom of the bracket 201. The telescopic rod 202 can extend and retract to change its length, used to adjust the height of the connecting block 203. A connecting block 203 is fixedly connected to one end of the telescopic rod 202, and the connecting block 203 can extend and retract with the rod. The telescopic movement of rod 202 serves as a connecting carrier for subsequent components. Connecting slots 204 are provided on both the front and rear sides of the bottom of connecting block 203. These slots provide sliding and installation space for fixing block 205, allowing it to move within them. Fixing blocks 205 are slidably connected to the inner sides of both connecting slots 204, allowing them to slide and adjust their position to suit different installation requirements. Moving slots 206 are provided on the left and right sides of both fixing blocks 205, providing space for moving block 207. A sliding track restricts the movement direction of the second movable block 207. Multiple movable slots 206 each have a movable block 207 slidably connected inside, allowing the second movable block 207 to slide within the slots and change its position. Springs 208 are provided on the outer sides of each of the two movable blocks 207, providing elasticity and applying an outward force to the second movable block 207. Limit bolts 209 are rotatably connected to the opposite sides of the two fixed blocks 205. These limit bolts 209 can be rotated to compress or loosen other components, adjusting the position of the fixed blocks 205. In the current state, one end of each of the two limiting bolts 209 passes through the moving groove 206 and is rotatably connected to the pressing block 210. When the limiting bolts 209 are rotated, the pressing block 210 moves accordingly, pressing or releasing the moving block 207. The bottom of each of the two fixed blocks 205 is fixedly connected to the same clamping block 211, which connects the two fixed blocks 205 together to form a stable structure. The bottom of the clamping block 211 is rotatably connected to the cutting blade 212, which can rotate at the bottom of the clamping block 211 to facilitate adjustment of the cutting angle during processing.

[0033] Reference Figure 1Each of the four corners of the top of the workbench 1 is fixedly connected to a support leg 17, which supports the workbench 1, raises its height, and positions it in a suitable working position. The bottoms of multiple support legs 17 are all fixedly connected to the same base plate 18, which connects the multiple support legs 17 together, enhancing the stability of the overall structure. Each of the four corners of the bottom of the base plate 18 is fixedly connected to a support foot 19, which further stabilizes the bottom structure of the entire device and distributes pressure. Each of the multiple support feet 19 is fixedly connected to a rubber pad 20, which increases the friction between the support foot 19 and the ground, preventing the device from slipping. The sliding mechanism also serves as a buffer. Triangular plates 21 are fixedly connected to both the left and right sides of the support 201. The triangular plates 21 enhance the connection between the support 201 and the workbench 1, making the support 201 more stable. The bottoms of multiple triangular plates 21 are fixedly connected to the top of the workbench 1 to ensure that the triangular plates 21 can effectively play a reinforcing role. A switch 22 is fixedly connected to the front left end of the workbench 1. The switch 22 is used to control the start and stop of the motor 3 for convenient operation. The switch 22 is electrically connected to the motor 3, the first telescopic rod 9 and the second telescopic rod 202 respectively to realize the conduction and disconnection of the circuit, thereby controlling the running state of the motor 3.

[0034] Working principle: When using the power transmission mechanism of the machine tool machining center, first turn on switch 22 to start motor 3 and drive shaft 4 to rotate. At this time, wheel 6 on the outer wall of shaft 4 rotates, and shaft 5 and wheel 6 on its outer wall rotate accordingly. At this time, transmission belt 13 drives wheel 12 and shaft 11 to rotate. At the same time, the top of transmission belt 13 drives sliding block 15 to move left and right inside sliding groove 14, so that cutting table 16 can move on top of worktable 1 for easy cutting. At the same time, if the transmission belt 13 is not stretched enough during long-term use, multiple telescopic rods 9 are activated to move downward, driving moving block 10 to move downward. At the same time, shaft 11 drives wheel 12 to move downward. By moving downward, the distance between wheel 6 and wheel 12 is increased, thereby increasing the tension of transmission belt 13 and increasing the stability of power transmission.

[0035] When the blade needs to be installed, the fixing block 205 is aligned with the connecting groove 204 and inserted. At this time, when the limiting bolt 209 is rotated, the pressing block 210 moves towards the moving block 207 in the moving groove 206, thereby pressing the moving block 207. This causes the moving block 207 to move outward and press the spring 208, thus fixing the fixing block 205 in the connecting groove 204. When disassembling, simply rotate the limiting bolt 209 to release the pressure on the pressing block 210. At this time, the spring 208 releases pressure and rebounds, releasing the limiting of the fixing block 205, thereby disassembling the blade.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power transmission mechanism for a machine tool machining center, comprising a worktable (1) and a transmission belt (13), characterized in that: A motor (3) is fixedly connected to the front right end of the workbench (1). The output end of the motor (3) passes through the workbench (1) and is fixedly connected to a rotating shaft (4). A rotating shaft (5) is fixedly connected to the bottom left side of the workbench (1). A rotating wheel (6) is fixedly connected to the outer wall of both the rotating shaft (4) and the rotating shaft (5). Vertical plates (7) are fixedly connected to the front and rear sides of the bottom of the workbench (1). Grooves (8) are opened at both ends of the adjacent side of the two vertical plates (7). Telescopic rods (9) are fixedly connected to the bottom of the inner side of the multiple grooves (8). A moving block (10) is fixedly connected to one end of the multiple telescopic rods (9). One side of each of the three rotating shafts (11) is rotatably connected to a corresponding rotating shaft (11). The outer walls of the two rotating shafts (11) are fixedly connected to the rotating wheels (12). Multiple rotating wheels (6) are respectively connected to the corresponding rotating wheels (12) via a transmission belt (13). A sliding groove (14) is provided on the top of the workbench (1). A sliding block (15) is slidably connected inside the sliding groove (14). The bottom of the sliding block (15) is fixedly connected to the top of the transmission belt (13). A cutting table (16) is fixedly connected to the top of the sliding block (15). An installation mechanism (2) is provided on the top of the workbench (1). The installation mechanism (2) is used to install the blade.

2. The power transmission mechanism of the machine tool machining center according to claim 1, characterized in that: The installation mechanism (2) includes a bracket (201), the bottom of which is fixedly connected to the top of the workbench (1). A telescopic rod (202) is fixedly connected to the bottom of the bracket (201). A connecting block (203) is fixedly connected to one end of the telescopic rod (202). Connecting grooves (204) are provided on the front and rear sides of the bottom of the connecting block (203). Fixing blocks (205) are slidably connected to the inner sides of the two connecting grooves (204). Moving grooves (206) are provided on the left and right sides of the two fixing blocks (205). Multiple The movable slot (206) is slidably connected to the interior of each movable block (207). Springs (208) are provided on the outer sides of each of the two movable blocks (207). Limiting bolts (209) are rotatably connected to the opposite sides of each of the two fixed blocks (205). One end of each of the two limiting bolts (209) passes through the movable slot (206) and is rotatably connected to a pressing block (210). The bottom of each of the two fixed blocks (205) is fixedly connected to the same clamping block (211). A cutting blade (212) is rotatably connected to the bottom of the clamping block (211).

3. The power transmission mechanism of the machine tool machining center according to claim 1, characterized in that: The workbench (1) is fixedly connected to four corners at the top, and the bottom of each of the multiple support legs (17) is fixedly connected to the same base plate (18).

4. The power transmission mechanism of the machine tool machining center according to claim 3, characterized in that: Support feet (19) are fixedly connected to the four corners of the bottom of the base plate (18), and rubber pads (20) are fixedly connected to the bottom of each of the support feet (19).

5. The power transmission mechanism of the machine tool machining center according to claim 2, characterized in that: Triangular plates (21) are fixedly connected to both the left and right sides of the bracket (201), and the bottoms of the multiple triangular plates (21) are fixedly connected to the top of the workbench (1).

6. The power transmission mechanism of the machine tool machining center according to claim 1, characterized in that: A switch (22) is fixedly connected to the front left end of the workbench (1). The switch (22) is electrically connected to the motor (3), the first telescopic rod (9), and the second telescopic rod (202).

7. The power transmission mechanism of the machine tool machining center according to claim 1, characterized in that: Each of the multiple grooves (8) has a sliding groove (23) on its left and right sides, and each of the multiple movable blocks (10) has a slider (24) fixedly connected to its left and right sides. Each of the multiple sliders (24) is slidably connected to the interior of the corresponding sliding groove (23).

8. The power transmission mechanism of the machine tool machining center according to claim 1, characterized in that: The workbench (1) has limit grooves (25) on the front and back sides of the top, and the sliding block (15) has limit blocks (26) fixedly connected to the front and back sides of the bottom.

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