Adjustable motor mounting device for numerical control machine tool

Abstract

The utility model relates to machine tool equipment technical field especially, more particularly to adjustable motor mounting device for numerical control machine tool, including bed saddle, gearbox, drive motor, transmission belt and motor support mechanism, the upper portion of bed saddle is provided with gearbox, and the transmission wheel of gearbox is connected with the output wheel on drive motor through transmission belt, and drive motor sets up on the motor support mechanism in the inside of bed saddle, the motor support mechanism includes support base, sliding table, screw rod, first connecting rod and rotation handle, and one end of support base is rotatably connected with the first bearing block in bed saddle through pin shaft, and the other end of support base is movably connected with the first fixed lug on sliding table through first connecting rod, sliding table is connected with the slide strip and screw rod on bed saddle through the slide groove and screw hole of bottom respectively, the utility model is used to solve the problem that the existing numerical control machine tool motor drive system transmission belt is easy to slacken and leads to power transmission instability, and the traditional adjustment mode is complicated.

Description

Technical Field

[0001] This utility model relates to the field of machine tool equipment technology, and in particular to an adjustable motor mounting device for CNC machine tools. Background Technology

[0002] In the operating system of CNC machine tools, the motor is the core power source, and the stability of its power transmission directly affects the machining accuracy and operating efficiency of the equipment. Currently, CNC machine tools generally adopt a transmission mode in which the motor is connected to the gearbox through a transmission belt, and then the gearbox transmits the power to the drive shaft. This mode is widely used in the industry due to its simple structure and low cost.

[0003] However, in long-term actual operation, this transmission mode has revealed significant technical defects. Under continuous tension and friction, the transmission belt will gradually undergo elastic deformation and wear, resulting in belt slack. Belt slack directly causes slippage, making it impossible for the power output of the motor to be transmitted to the subsequent transmission components efficiently and stably. This not only causes power loss and reduced transmission efficiency, but may also lead to problems such as dimensional deviations and poor surface quality of the processed workpiece due to unstable power transmission, seriously affecting the machining accuracy of CNC machine tools.

[0004] To address the aforementioned issues, existing technologies typically require operators to adjust the tension of the drive belt. However, traditional adjustment methods necessitate disassembling the motor mounting structure and re-tensioning the belt by altering the relative positions of the motor and gearbox. This process requires specialized tools and multiple adjustments to ensure proper belt tension, making it cumbersome and time-consuming. Therefore, an adjustable motor support structure was designed to solve the problems of unstable power transmission caused by easily loosened drive belts in existing CNC machine tool motor transmission systems, as well as the cumbersome nature of traditional adjustment methods. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model provides an adjustable motor mounting device for CNC machine tools, which solves the problems of unstable power transmission caused by easy loosening of transmission belts in existing CNC machine tool motor transmission systems and the cumbersome traditional adjustment methods.

[0006] The technical implementation scheme of this utility model is as follows:

[0007] An adjustable motor mounting device for a CNC machine tool includes a saddle, a gearbox, a drive motor, a transmission belt, and a motor support mechanism. The gearbox is mounted on the upper part of the saddle, and its transmission wheel is connected to the output wheel of the drive motor via a transmission belt. The drive motor is mounted on the motor support mechanism inside the saddle. The motor support mechanism includes a support base, a sliding table, a screw, a first connecting rod, and a rotating handle. One end of the support base is rotatably connected to a first bearing seat inside the saddle via a pin, and the other end of the support base is movably connected to a first fixed lug on the sliding table via the first connecting rod. The sliding table is connected to a slide bar and a screw on the saddle via a bottom groove and a screw hole, respectively. A rotating handle is provided at one end of the screw.

[0008] Optionally, the screw is disposed inside the saddle via a second bearing seat; the other end of the first connecting rod is movably connected to a second fixing lug at the bottom of the support base.

[0009] Optionally, it also includes a pre-tensioning mechanism, which includes a third bearing seat, a second bearing seat, a second connecting rod, a third connecting rod, an auxiliary wheel, a fourth connecting rod, and a fifth connecting rod. The third bearing seat and the second bearing seat are both located at one end of the saddle, and the second connecting rod is movably mounted on the upper part of the third bearing seat. One end of the second connecting rod is connected to the auxiliary wheel through the third connecting rod, and the auxiliary wheel is connected to the transmission belt.

[0010] Optionally, a first pressure spring is provided on the outer wall of the third connecting rod to form a first elastic structure; the fourth connecting rod is movably disposed on the second bearing seat, and the fourth connecting rod is movably connected to the third fixing lug on one side of the second connecting rod through a fifth connecting rod, and a second pressure spring is provided on the outer wall of the fifth connecting rod to form a second elastic structure.

[0011] Optionally, the saddle has a rectangular opening inside, and the motor support mechanism is located inside the rectangular opening.

[0012] This utility model has the following advantages:

[0013] 1. This utility model provides a motor support mechanism on the saddle, which can tighten the transmission belt connecting the drive motor and the gearbox by adjusting the installation angle of the entire drive motor. Moreover, the adjustment can be completed simply by turning the screw, without the need for traditional disassembly and installation. This not only improves convenience but also has a simple structure and is easy to operate.

[0014] 2. In order to improve the pretension of the transmission belt, this utility model designs a pretensioning mechanism, which can use the elastic force generated by the second connecting rod and the fourth connecting rod to press the auxiliary wheel on the third connecting rod tightly against one side of the transmission belt, preventing the transmission belt from loosening and disengaging from the transmission groove of the transmission wheel during rotation, thus playing a stabilizing role. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is the front view of the present invention.

[0017] Figure 3 This is a schematic diagram of the pre-tightening mechanism of this utility model.

[0018] Figure 4 This is a schematic diagram of the motor support mechanism of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the support base of this utility model.

[0020] The meanings of the reference numerals in the figure are as follows: 1-Saddle, 2-Gearbox, 3-Transmission wheel, 4-Preload mechanism, 401-Third bearing seat, 402-Second bearing seat, 403-Second connecting rod, 405-Third connecting rod, 406-Auxiliary wheel, 407-Fourth connecting rod, 408-Fifth connecting rod, 409-First pressure spring, 5-Transmission belt, 6-Output wheel, 7-Drive motor, 8-Motor support mechanism, 801-Support base, 802-Pin, 803-First connecting rod, 804-Sliding table, 805-Screw, 806-Slide bar, 807-Rotating handle, 9-Rectangular opening. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0022] like Figures 1-5As shown, an adjustable motor mounting device for a CNC machine tool includes a saddle 1, a gearbox 2, a drive motor 7, a transmission belt 5, and a motor support mechanism 8. The gearbox 2 is mounted on the upper part of the saddle 1, and the transmission wheel 3 of the gearbox 2 is connected to the output wheel 6 on the drive motor 7 via the transmission belt 5. The drive motor 7 is mounted on the motor support mechanism 8 inside the saddle 1. The motor support mechanism 8 includes a support base 801, a sliding table 804, a screw 805, a first connecting rod 803, and a rotating handle 807. One end of the support base 801 is open to... The pin 802 is rotatably connected to the first bearing seat inside the saddle 1. The other end of the support base 801 is movably connected to the first fixed lug 808 on the sliding table 804 via the first connecting rod 803. The sliding table 804 is connected to the slide bar 806 and the screw 805 on the saddle 1 via the bottom groove and screw hole, respectively. One end of the screw 805 is provided with a rotating handle 807. The screw 805 is set inside the saddle 1 via the second bearing seat. The other end of the first connecting rod 803 is movably connected to the second fixed lug at the bottom of the support base 801.

[0023] It should be noted that during long-term use of CNC machine tools, the transmission spindle is generally connected to the drive motor 7 via a transmission belt to transmit power. However, the transmission belt 5 may loosen during long-term use, resulting in a decrease in kinetic energy transmission efficiency. This usually requires the operator to disassemble and adjust it, but the process is quite cumbersome. Therefore, a motor support mechanism 8 is added to the original motor support part of the saddle 1 for adjusting the angle of the transmission motor 7. This allows the transmission belt 5 to be tightened by adjusting the angle when it becomes loose.

[0024] It should be further explained that the support base 801 is rotatably connected to the first bearing seat inside the saddle 1 via a pin at one end, and the other end of the support base 801 is movably connected to the first fixed lug 808 on the sliding table 804 via the first connecting rod 803. Therefore, the support base 801 is rotated by driving the sliding table 804 to achieve angle adjustment. For easy adjustment, the entire sliding table 804 is connected to the slide bar 806 and the screw 805 on the saddle 1 via the slide groove and screw hole at the bottom, respectively. The sliding table 804 is moved by rotating the screw 805, thus improving the convenience of the equipment.

[0025] like Figures 1-4As shown, it also includes a pre-tensioning mechanism 4, which includes a third bearing seat 401, a second bearing seat 402, a second connecting rod 403, a third connecting rod 405, an auxiliary wheel 406, a fourth connecting rod 407, and a fifth connecting rod 408. The third bearing seat 401 and the second bearing seat 402 are both located at one end of the saddle 1, and the second connecting rod 403 is movably mounted on the upper part of the third bearing seat 401. One end of the second connecting rod 403 is connected to the auxiliary wheel 406 through the third connecting rod 405. The auxiliary wheel 406 is connected to the transmission belt 5. A first pressure spring 409 is provided on the outer wall of the third connecting rod 405 to form a first elastic structure. The fourth connecting rod 407 is movably mounted on the second bearing seat 402, and the fourth connecting rod 407 is movably connected to the third fixed lug on one side of the second connecting rod 403 through the fifth connecting rod 408. A second pressure spring is provided on the outer wall of the fifth connecting rod 408 to form a second elastic structure.

[0026] It should be noted that, in order to prevent the transmission belt 5 from coming off the connecting groove of the transmission wheel 3 due to loosening, a pre-tensioning mechanism 4 is designed. The entire third bearing seat 401 is movably mounted on the saddle 1, and a second connecting rod 403 is installed inside the through hole of the third bearing seat 401. One end of the second connecting rod 403 is connected to the auxiliary wheel 406 through the third connecting rod 405. A first pressure spring is installed on the outer wall of the third connecting rod 405 to form a first elastic structure, which can fix the auxiliary wheel 406 to the back of the transmission belt 5. In order to improve stability, a fourth connecting rod 407 is movably mounted on the second bearing seat 402, and a fifth connecting rod 408 is installed inside the fourth connecting rod 407. The fifth connecting rod 408 is movably connected to one side of the second connecting rod 403 to play a stabilizing role. In order to achieve an elastic connection, a second pressure spring is installed on the outer wall of the fifth connecting rod 408 to form a second elastic structure. This structure can keep the auxiliary wheel 406 always attached to the back of the transmission belt 5, which plays a role in preventing it from coming off.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An adjustable motor mounting device for a CNC machine tool, comprising a saddle (1), a gearbox (2), a drive motor (7), a transmission belt (5), and a motor support mechanism (8), characterized in that, The upper part of the saddle (1) is provided with a gearbox (2), and the transmission wheel (3) of the gearbox (2) is connected to the output wheel (6) on the drive motor (7) through the transmission belt (5). The drive motor (7) is located on the motor support mechanism (8) inside the saddle (1). The motor support mechanism (8) includes a support base (801), a sliding table (804), a screw (805), a first connecting rod (803), and a rotating handle (807). One end of the support base (801) is rotatably connected to the first bearing seat in the saddle (1) through a pin (802), and the other end of the support base (801) is movably connected to the first fixed ear (808) on the sliding table (804) through the first connecting rod (803). The sliding table (804) is connected to the slide bar (806) and screw (805) on the saddle (1) through the slide groove and screw hole at the bottom, respectively. One end of the screw (805) is provided with a rotating handle (807).

2. The adjustable motor mounting device for CNC machine tools according to claim 1, characterized in that, The screw (805) is mounted inside the saddle (1) via a second bearing seat; The other end of the first connecting rod (803) is movably connected to the second fixing ear at the bottom of the support base (801).

3. The adjustable motor mounting device for CNC machine tools according to claim 2, characterized in that, It also includes a pre-tensioning mechanism (4), which includes a third bearing seat (401), a second bearing seat (402), a second connecting rod (403), a third connecting rod (405), an auxiliary wheel (406), a fourth connecting rod (407), and a fifth connecting rod (408). The third bearing seat (401) and the second bearing seat (402) are both located at one end of the saddle (1), and the second connecting rod (403) is movably arranged on the upper part of the third bearing seat (401). One end of the second connecting rod (403) is connected to the auxiliary wheel (406) through the third connecting rod (405), and the auxiliary wheel (406) is connected to the transmission belt (5).

4. An adjustable motor mounting device for CNC machine tools according to claim 3, characterized in that, A first pressure spring (409) is provided on the outer wall of the third connecting rod (405) to form a first elastic structure; The fourth connecting rod (407) is movably mounted on the second bearing seat (402), and the fourth connecting rod (407) is movably connected to the third fixing lug on one side of the second connecting rod (403) through the fifth connecting rod (408). A second pressure spring is provided on the outer wall of the fifth connecting rod (408) to form a second elastic structure.

5. An adjustable motor mounting device for CNC machine tools according to claim 1, characterized in that, The saddle (1) has a rectangular opening (9) inside, and the motor support mechanism (8) is located inside the rectangular opening (9).

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