Mute electric sliding table

Abstract

The utility model relates to the technical field of precision mechanical equipment, in particular to a mute electric sliding table which comprises a base, a transverse sliding seat, a longitudinal sliding seat, a containing groove body used for containing a workpiece, a transverse driving assembly and a longitudinal driving assembly. The base is provided with a transverse guide rod used for allowing the transverse sliding seat to slide, the transverse sliding seat is installed on the transverse guide rod in a sliding mode, the transverse sliding seat is provided with a longitudinal guide rod used for allowing the longitudinal sliding seat to slide, and the longitudinal sliding seat is installed on the longitudinal guide rod in a sliding mode. The containing groove body is integrally connected to the upper portion of the longitudinal sliding base. The transverse sliding seat is provided with a first damping assembly used for being matched with the transverse driving assembly, and the longitudinal sliding seat is provided with a second damping assembly used for being matched with the longitudinal driving assembly. The electric sliding table has the effect of solving the problem that the noise of the electric sliding table is large.

Description

Technical Field

[0001] This application relates to the technical field of precision mechanical equipment, and particularly to a silent electric slide table. Background Art

[0002] In precision automation equipment, a slide table can place workpieces to be processed and drive the workpieces to perform precise linear motion through its own motion mechanism, so as to realize the processing or detection of the workpieces. The technology of a precision automatic slide table driven by a stepper motor, as one of the core components in the field of industrial automation, its performance is directly related to the accuracy and stability of the overall equipment. The design of the slide table highly depends on the high-precision cooperation between the guide rod and the lead screw to achieve micron-level positioning accuracy. Among them, not only is it required that the gap between the guide rod and the lead screw is extremely small to eliminate backlash, but also it must meet extremely high coaxiality standards to ensure smooth and precise power transmission. When the stepper motor drives the lead screw to rotate, due to high-speed and frequent starts, stops and reversals as well as mechanical resonance phenomena, relatively large noise is often generated, which affects the working environment and the comfort of the operator.

[0003] In the related art, rubber shock pads are mostly used as preliminary shock absorption measures. Although they can absorb some vibrations to a certain extent, when the slider encounters large machining deviations or sudden impacts, their shock absorption effect becomes inadequate, making it difficult to effectively isolate vibrations and noise, thereby affecting the stability and service life of the slide table.

[0004] In view of the above related art, it is necessary to provide an electric slide table that can weaken the influence of noise. Utility Model Content

[0005] In order to improve the problem of relatively large noise of the electric slide table, this application provides a silent electric slide table.

[0006] The silent electric slide table provided by this application adopts the following technical solutions:

[0007] A silent electric slide table includes a base, a transverse sliding seat, a longitudinal sliding seat, a placement groove body for placing workpieces, a transverse driving component for cooperating with the transverse sliding seat, and a longitudinal driving component for cooperating with the longitudinal sliding seat, and the driving directions of the transverse driving component and the longitudinal driving component are perpendicular to each other;

[0008] A transverse guide rod for the transverse sliding seat to slide is installed on the base, the transverse sliding seat is slidably installed on the transverse guide rod, a longitudinal guide rod for the longitudinal sliding seat to slide is installed on the transverse sliding seat, the longitudinal sliding seat is slidably installed on the longitudinal guide rod, and the placement groove body is integrally connected above the longitudinal sliding seat;

[0009] The transverse sliding seat is provided with a first shock absorption component for cooperating with the transverse drive component, and the longitudinal sliding seat is provided with a second shock absorption component for cooperating with the longitudinal drive component.

[0010] By adopting the above technical solution, the silent electric sliding table can achieve precise positioning and silent sliding of the workpiece in multiple directions. Specifically, the design of the base, the transverse sliding seat, the longitudinal sliding seat and the drive component ensures the stable operation of the sliding table in the transverse and longitudinal directions; the application of the first shock absorption component and the second shock absorption component can effectively absorb the vibration generated by the machining deviation of the parts and reduce the noise during the operation of the system; the installation structure and fixing method of the linear bearing improve the straightness and parallelism between the slider and the guide rod, further enhancing the stability and reliability of the system.

[0011] Furthermore, two through holes are symmetrically formed on both sides of the transverse sliding seat and both sides of the longitudinal sliding seat along the moving direction, and linear bearing assemblies are arranged in the through holes. The transverse sliding seat is slidably connected to the transverse guide rod through the linear bearing assemblies, and the longitudinal sliding seat is slidably connected to the longitudinal guide rod through the linear bearing assemblies.

[0012] By adopting the above technical solution, two through holes are symmetrically formed on both sides of the transverse sliding seat and both sides of the longitudinal sliding seat along the moving direction, and linear bearing assemblies are arranged in the through holes, so that the transverse sliding seat is slidably connected to the transverse guide rod through the linear bearing assemblies, and the longitudinal sliding seat is slidably connected to the longitudinal guide rod through the linear bearing assemblies, improving the straightness and sliding smoothness of the sliding table, effectively reducing the vibration and noise during the operation of the sliding table.

[0013] Furthermore, the linear bearing assembly includes an elastic spacer sleeved on the outer wall of the transverse guide rod / longitudinal guide rod and at least two linear bearings. The two linear bearings symmetrically abut against both ends of the elastic spacer, and the transverse sliding seat / longitudinal sliding seat is provided with a fixing member for fixing the linear bearings.

[0014] By adopting the above technical solution, the linear bearing assembly includes an elastic spacer sleeved on the outer wall of the transverse guide rod or longitudinal guide rod and at least two linear bearings. The two linear bearings symmetrically abut against both ends of the elastic spacer, and the transverse sliding seat or longitudinal sliding seat is provided with a fixing member for fixing the linear bearings, so that the linear bearings can be evenly stressed during the operation of the sliding table, effectively reducing the skew phenomenon during sliding, improving the smoothness and precision of the sliding table operation, and at the same time simplifying the installation process of the sliding table and reducing the assembly difficulty.

[0015] Furthermore, the transverse sliding seat and the longitudinal sliding seat are respectively provided with installation blind holes at both ends for inserting the fixing members, and the installation blind holes are located at positions adjacent to the through holes.

[0016] By adopting the above technical solution, the transverse sliding seat and the longitudinal sliding seat are respectively provided with mounting blind holes for inserting fixing parts at both ends, and the mounting blind holes are located at adjacent positions of the through holes, so that the linear bearing assembly can be stably mounted on the transverse sliding seat and the longitudinal sliding seat, improving the stability during the operation of the slide table and reducing the vibration and noise caused by processing deviation.

[0017] Furthermore, U-shaped grooves for the two ends of the transverse guide rod to be snapped into are symmetrically provided on both sides of the base. Two fixing screws are symmetrically penetrated through the transverse guide rod at positions close to both ends, and the positions of the fixing screws correspond to the U-shaped grooves up and down.

[0018] By adopting the above technical solution, the U-shaped grooves enable the two ends of the transverse guide rod to be accurately snapped in, ensuring the coaxiality and parallelism between the transverse guide rod and the transverse sliding seat, thereby improving the smoothness and precision of the slide table operation. The setting of the fixing screws enables the transverse guide rod to be reliably fixed in the U-shaped grooves, avoiding position deviation caused by processing or installation errors, and further enhancing the stability and reliability of the slide table structure.

[0019] Furthermore, the transverse driving assembly includes a driving motor mounted on the base, a lead screw provided on the driving motor, and a high-precision nut provided at one end of the lead screw away from the driving motor and threadedly engaged with the lead screw. The transverse mounting seat is provided with a mounting plate on the lower side, and the mounting plate is provided with a through hole for the lead screw to pass through;

[0020] The first shock-absorbing assembly is mounted on the side of the mounting plate away from the driving motor.

[0021] By adopting the above technical solution, the driving motor in the transverse driving assembly cooperates with the high-precision nut through the lead screw to achieve the precise movement of the transverse sliding seat. The through hole on the mounting plate ensures the smooth penetration of the lead screw and reduces the friction during the sliding process. The first shock-absorbing assembly is mounted on the side of the mounting plate away from the driving motor, effectively reducing the noise and vibration generated during the operation of the motor, and improving the stability and service life of the entire slide table.

[0022] Furthermore, the first shock-absorbing assembly includes a first-stage shock-absorbing column, a second-stage shock-absorbing column, a shock-absorbing column pressing plate and a connecting piece. One end of the first-stage shock-absorbing column vertically passes through and is fixedly connected to the mounting plate. The end of the first-stage shock-absorbing column away from the mounting plate abuts against the high-precision nut. One end of the second-stage shock-absorbing column passes through the high-precision nut and is fixedly connected to the end of the first-stage shock-absorbing column. The shock-absorbing column pressing plate is fixedly connected to the end of the second-stage shock-absorbing column away from the connection with the first-stage shock-absorbing column through the connecting piece;

[0023] The shock-absorbing column pressing plate is provided with a sliding through-hole for the high-precision nut to pass through and slide, and the shock-absorbing column pressing plate is fixedly connected to the mounting plate.

[0024] By adopting the above technical solution, the shock-absorbing column structure in the first shock-absorbing assembly can effectively absorb the vibration and impact caused by processing deviation during the sliding process of the lateral sliding seat. The primary shock-absorbing column is fixedly connected to the mounting plate and abuts against the high-precision nut, which can effectively offset the deviation caused by the non-parallelism between the motor lead screw and the guide rod; the secondary shock-absorbing column is connected to the primary shock-absorbing column, further enhancing the shock-absorbing effect and reducing the noise generated during the operation of the high-precision nut. The shock-absorbing column pressing plate is fixed by a connecting piece and is provided with a sliding through-hole, enabling the high-precision nut to slide within the first sliding through-hole, improving the smoothness and quiet performance of the slider operation.

[0025] Furthermore, a flexible shock-absorbing composite sheet is provided on the side of the driving motor close to the lead screw.

[0026] By adopting the above technical solution, a flexible shock-absorbing composite sheet is provided on the side of the driving motor close to the lead screw, which can effectively reduce the vibration and noise during the operation of the motor, improving the smoothness and quiet performance of the slide table operation. The soft shock-absorbing pad in the flexible shock-absorbing composite sheet can play a good buffering role when the motor is subjected to external impact or vibration, preventing the vibration from being directly transmitted to the slide table structure, thereby prolonging the service life of the entire slide table system.

[0027] Furthermore, the flexible shock-absorbing composite sheet includes two rigid connecting plates for fixedly connecting to the driving motor, a soft shock-absorbing pad is fixedly connected between the two rigid connecting plates, and both the rigid connecting plates and the soft shock-absorbing pad are provided with circular holes for the lead screw to pass through.

[0028] By adopting the above technical solution, the combination of the two rigid connecting plates and the soft shock-absorbing pad in the flexible shock-absorbing composite sheet can effectively absorb the vibration generated during the operation of the driving motor, prevent the vibration from being transmitted to the lead screw, thereby reducing the noise and vibration during the operation of the slide table, and improving the stability and service life of the slide table. The soft shock-absorbing pad has good strength and toughness, can withstand the pushing and pulling force of the motor while avoiding self-damage, ensuring the normal operation of the slide table.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. By setting the first shock-absorbing assembly and the second shock-absorbing assembly, it is possible to effectively isolate the vibration generated during the operation of the slide table due to processing deviation or sudden impact, improving the stability and service life of the slide table;

[0031] 2. The installation structure of the linear bearing assembly combined with the elastic spacer ensures that the sliding seat can maintain high precision and low friction during the sliding process, further improving the movement smoothness and positioning accuracy of the sliding table.

[0032] 3. The flexible shock-absorbing combination piece effectively reduces the noise generated by the stepping motor during the driving process, improves the working environment, and enhances the comfort of the operator. Brief Description of the Drawings

[0033] Figure 1 It is a schematic diagram of the overall structure of a silent electric sliding table according to an embodiment of the present application.

[0034] Figure 2 It is an exploded schematic diagram of the structure of a silent electric sliding table according to an embodiment of the present application.

[0035] Figure 3 It is an exploded schematic diagram of the structure of the longitudinal sliding seat, longitudinal guide rod and linear bearing assembly in an embodiment of the present application.

[0036] Figure 4 It is an exploded schematic diagram of the structure of the base, transverse drive assembly, transverse sliding seat and first shock-absorbing assembly in an embodiment of the present application.

[0037] Figure 5 It is a schematic diagram of the overall structure of the flexible shock-absorbing combination piece in an embodiment of the present application.

[0038] Description of the Reference Numerals: 1, base; 11, transverse guide rod; 12, U-shaped groove; 13, fixing screw; 2, transverse sliding seat; 21, longitudinal guide rod; 22, through hole; 23, linear bearing assembly; 231, elastic spacer; 232, linear bearing; 24, fixing member; 241, mounting blind hole; 25, mounting plate; 251, through hole; 3, longitudinal sliding seat; 4, placement groove body; 5, transverse drive assembly; 51, drive motor; 52, lead screw; 53, high-precision nut; 54, first shock-absorbing assembly; 541, primary shock-absorbing column; 542, secondary shock-absorbing column; 543, shock-absorbing column pressing plate; 544, connecting member; 6, longitudinal drive assembly; 61, second shock-absorbing assembly; 7, flexible shock-absorbing combination piece; 71, rigid connecting plate; 72, soft shock-absorbing pad, 721, round hole. Detailed Embodiments

[0039] In order to make the purpose, technical solutions and advantages of the present application clearer, the following Figures 1-5 are described in further detail in conjunction with the attached

[0040] embodiments. Figure 1 and Figure 2, the silent electric sliding table includes a base 1, a transverse sliding seat 2, a longitudinal sliding seat 3, a placement groove body 4 for placing workpieces, a transverse driving assembly 5 for cooperating with the transverse sliding seat 2, and a longitudinal driving assembly 6 for cooperating with the longitudinal sliding seat 3. The driving directions of the transverse driving assembly 5 and the longitudinal driving assembly 6 are perpendicular to each other. The transverse sliding seat 2 slides above the base 1, the longitudinal sliding seat 3 slides above the transverse sliding seat 2, and the placement groove body 4 is integrally connected above the longitudinal sliding seat 3. A transverse guide rod 11 for the transverse sliding seat 2 to slide is installed on the base 1, and a longitudinal guide rod 21 for the longitudinal sliding seat 3 to slide is installed on the transverse sliding seat 2.

[0041] U-shaped grooves 12 are symmetrically provided on both sides of the base 1 and the transverse sliding seat 2 respectively. The two ends of the transverse guide rod 11 are clamped into the U-shaped grooves 12 on the base 1, and the longitudinal guide rod 21 is clamped into the U-shaped groove 12 of the transverse sliding seat 2. Two fixing screws 13 are symmetrically and perpendicularly penetrated near both ends of the transverse guide rod 11 / longitudinal guide rod 21, and the positions of the fixing screws 13 correspond to the U-shaped grooves 12 up and down.

[0042] Refer to Figure 2 and Figure 3 , two through holes 22 are symmetrically opened on both sides of the transverse sliding seat 2 and both sides of the longitudinal sliding seat 3 respectively along the moving direction. A linear bearing assembly 23 for cooperating with the corresponding guide rod is provided in each through hole 22. The transverse sliding seat 2 is slidably connected to the transverse guide rod 11 through the linear bearing assembly 23, and the longitudinal sliding seat 3 is slidably connected to the longitudinal guide rod 21 through the linear bearing assembly 23.

[0043] Refer to Figure 3 , the linear bearing assembly 23 includes an elastic spacer 231 and two linear bearings 232. The inner diameter of each linear bearing 232 matches the diameter of the transverse guide rod 11 or the longitudinal guide rod 21. The elastic spacer 231 is used to separate the two linear bearings 232 and provide a certain shock-absorbing effect through its elastic characteristics. The elastic spacer 231 in this embodiment is preferably made of spring steel material to improve the shock-absorbing effect for the linear bearings 232 at both ends.

[0044] The transverse sliding seat 2 and the longitudinal sliding seat 3 are respectively provided with fixing members 24 for fixing the linear bearing assembly 23 in the through holes 22. The transverse sliding seat 2 and the longitudinal sliding seat 3 are respectively provided with mounting blind holes 241 at both ends for the fixing members 24 to be inserted. The mounting blind holes 241 are located at adjacent positions of the through holes 22. The fixing member 24 is inserted into the mounting blind hole 241 of the transverse sliding seat 2 and fixedly connected to the transverse sliding seat 2. The end position of the fixing member 24 abuts against the end of the linear bearing 232, so that the linear bearing 232 can be firmly installed in the through hole 22 of the transverse sliding seat 2. The installation method of the linear bearing assembly 23 on the longitudinal sliding seat 3 is the same as that of the linear bearing assembly 23 on the transverse sliding seat 2.

[0045] Refer to Figure 2 and Figure 4 Figure 2 and Figure 4 , the lateral drive assembly 5 includes a drive motor 51 mounted on the base 1, a lead screw 52 provided on the drive motor 51, and a high-precision nut 53 provided at one end of the lead screw 52 away from the drive motor 51 and threadedly engaged with the lead screw 52. The lateral mounting base is provided with a mounting plate 25 on the lower side, and the mounting plate 25 is provided with a through hole 251 for the lead screw 52 to pass through. The lateral sliding seat 2 is provided with a first shock absorption assembly 54 for cooperating with the lateral drive assembly 5, and the first shock absorption assembly is mounted on the side of the mounting plate 25 away from the drive motor 51.

[0046] The first shock absorption assembly 54 includes a primary shock absorption column 541, a secondary shock absorption column 542, a shock absorption column pressing plate 543 and a connecting member 544. In this embodiment, the number of the primary shock absorption columns 541 and the secondary shock absorption columns 542 is preferably three. One end of the primary shock absorption column 541 vertically passes through and is fixedly connected to the mounting plate 25, and the end of the primary shock absorption column 541 away from the mounting plate 25 abuts against the high-precision nut 53. One end of the secondary shock absorption column 542 passes through the high-precision nut 53 and is fixedly connected to the end of the primary shock absorption column 541. The shock absorption column pressing plate 543 is fixedly connected to the end of the secondary shock absorption column 542 away from the connection with the primary shock absorption column 541 through the connecting member 544. The shock absorption column pressing plate 543 is provided with a sliding through hole 22 for the high-precision nut 53 to pass through and slide, and the shock absorption column pressing plate 543 is fixedly connected to the mounting plate 25.

[0047] The longitudinal drive assembly 6 is arranged in the same way as the lateral drive assembly 5. The drive motor 51 in the longitudinal drive assembly 6 is mounted on the lateral sliding seat 2, and a second shock absorption assembly 61 cooperating with the drive motor 51 is mounted below the longitudinal sliding seat 3. The second shock absorption assembly 61 is arranged in the same way as the first shock absorption assembly. In this embodiment, both the primary shock absorption column 541 and the secondary shock absorption column 542 are made of flexible materials such as rubber or polyurethane, which can absorb a large amount of vibration.

[0048] Refer to Figure 4 and Figure 5 Figure 4 and Figure 5 , on the side of the drive motor 51 close to the lead screw 52 and on the side of the longitudinal drive motor 51 close to the longitudinal lead screw 52, two groups of flexible shock absorption composite sheets 7 are respectively provided. The flexible shock absorption composite sheet 7 includes two rigid connecting plates 71 for fixedly connecting with the drive motor 51, and a soft shock absorption pad 72 is fixedly connected between the two rigid connecting plates 71. The rigid connecting plates 71 and the soft shock absorption pad 72 are both provided with circular holes 721 for the lead screw 52 to pass through.

[0049] The implementation principle of a silent electric slide table in an embodiment of this application is as follows: The silent slide table enables the placement groove body 4 to drive the workpiece to be processed to move horizontally and vertically through the horizontal sliding seat 2 and the vertical sliding seat 3. Both the horizontal sliding seat 2 and the vertical sliding seat 3 can be slidably connected to the corresponding guide rods through linear bearing assemblies 23. By accurately installing the linear bearings 232, elastic spacer rings 231, and fixing parts 24, the assembly accuracy is improved, thereby ensuring the smoothness of sliding.

[0050] The horizontal drive assembly 5 provides a power source for the horizontal sliding seat 2, and the vertical drive assembly 6 provides a power source for the vertical sliding seat 3. The horizontal drive assembly 5 and the vertical drive assembly 6 are respectively shock-absorbed through the first shock-absorbing assembly and the second shock-absorbing assembly 61, thereby achieving a silent effect. The first / second shock-absorbing assembly 61 forms a double-layer shock-absorbing mechanism through the design of the primary shock-absorbing column 541, the secondary shock-absorbing column 542, and the shock-absorbing column pressing plate 543, effectively isolating vibration and noise and ensuring the stable operation of the slide table.

[0051] The flexible shock-absorbing composite sheet 7 can be used to reduce the vibration noise of the drive motor 51 and the vertical drive motor 51.

[0052] The above are all preferred embodiments of this application. Without limiting the protection scope of this application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A silent electric slide, characterized in that: The invention comprises a base (1), a transverse sliding seat (2), a longitudinal sliding seat (3), a placement trough (4) for placing workpieces, a transverse driving component (5) for cooperating with the transverse sliding seat (2), and a longitudinal driving component (6) for cooperating with the longitudinal sliding seat (3), wherein the driving directions of the transverse driving component (5) and the longitudinal driving component (6) are perpendicular to each other; The base (1) is provided with a transverse guide rod (11) for sliding the transverse sliding seat (2), the transverse sliding seat (2) is slidably mounted on the transverse guide rod (11), the transverse sliding seat (2) is provided with a longitudinal guide rod (21) for sliding the longitudinal sliding seat (3), the longitudinal sliding seat (3) is slidably mounted on the longitudinal guide rod (21), and the placement trough (4) is integrally connected to the top of the longitudinal sliding seat (3); The transverse sliding seat (2) is provided with a first shock absorbing assembly (54) for cooperating with the transverse driving assembly (5), and the longitudinal sliding seat (3) is provided with a second shock absorbing assembly (61) for cooperating with the longitudinal driving assembly (6).

2. A silent electric slide according to claim 1, characterized in that: Two through holes (22) are symmetrically provided on both sides of the transverse sliding seat (2) and on both sides of the longitudinal sliding seat (3) along the moving direction, and a linear bearing assembly (23) is provided in the through hole (22). The transverse sliding seat (2) is slidingly connected to the transverse guide rod (11) through the linear bearing assembly (23), and the longitudinal sliding seat (3) is slidingly connected to the longitudinal guide rod (21) through the linear bearing assembly (23).

3. A silent electric slide according to claim 2, characterized in that: The linear bearing assembly (23) comprises an elastic spacer (231) sleeved on the outer wall of the transverse guide rod (11) / the longitudinal guide rod (21) and at least two linear bearings (232), the two linear bearings (232) are symmetrically abutted against the two ends of the elastic spacer (231), and the transverse sliding seat (2) / the longitudinal sliding seat (3) is provided with a fixing part (24) for fixing the linear bearings (232).

4. A silent electric slide according to claim 3, characterized in that: The transverse sliding seat (2) and the longitudinal sliding seat (3) are respectively provided with mounting blind holes (241) at both ends for the fixing member (24) to be inserted, and the mounting blind holes (241) are located at positions adjacent to the through holes (22).

5. The silent electric slide according to claim 1, characterized in that: U-shaped grooves (12) for the two ends of the transverse guide rod (11) to be inserted are symmetrically provided on both sides of the base (1), and two fixing screws (13) are symmetrically passed through the transverse guide rod (11) at positions close to the two ends, and the positions of the fixing screws (13) correspond to the upper and lower positions of the U-shaped grooves (12).

6. The silent electric slide according to claim 1, characterized in that: The transverse drive assembly (5) comprises a drive motor (51) mounted on the base (1), a screw rod (52) arranged on the drive motor (51), and a high-precision nut (53) arranged at one end of the screw rod (52) away from the drive motor (51) and threadedly matched with the screw rod (52), and the transverse mounting seat is provided with a mounting plate (25) at the lower side, and the mounting plate (25) is provided with a through hole (251) for the screw rod (52) to pass through; The first shock absorbing assembly is mounted on a side of the mounting plate (25) away from the driving motor (51).

7. The silent electric slide according to claim 6, characterized in that: The first shock absorbing assembly (54) comprises a primary shock absorbing column (541), a secondary shock absorbing column (542), a shock absorbing column pressure plate (543) and a connecting piece (544); one end of the primary shock absorbing column (541) vertically passes through and is fixedly connected to the mounting plate (25); one end of the primary shock absorbing column (541) away from the mounting plate (25) abuts against the high-precision nut (53); one end of the secondary shock absorbing column (542) passes through the high-precision nut (53) and is fixedly connected to the end of the primary shock absorbing column (541); and the shock absorbing column pressure plate (543) is fixedly connected to one end of the secondary shock absorbing column (542) away from the connection with the primary shock absorbing column (541) through the connecting piece (544); The shock-absorbing column pressing plate (543) is provided with a sliding through hole (22) for the high-precision nut (53) to pass through and slide, and the shock-absorbing column pressing plate (543) is fixedly connected to the mounting plate (25).

8. The silent electric slide according to claim 6, characterized in that: The driving motor (51) is provided with a flexible shock-absorbing composite sheet (7) on one side close to the screw rod (52).

9. The silent electric slide according to claim 8, characterized in that: The flexible shock-absorbing composite sheet (7) comprises two rigid connection plates (71) for fixedly connecting to the drive motor (51), a flexible shock-absorbing pad (72) being fixedly connected between the two rigid connection plates (71), and both the rigid connection plate (71) and the flexible shock-absorbing pad (72) have a circular hole (721) for the screw rod (52) to pass through.

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