Integrated electric cylinder with guide rod structure
By designing an integrated guide rod structure in the electric cylinder, using a servo motor to drive the ball screw assembly and the piston transmission assembly, combined with the guide assembly, the problems of insufficient anti-deflection accuracy and anti-torsion torque of the traditional electric cylinder are solved, and high accuracy is achieved and efficient motion control, suitable for multi-point positioning and acceleration and deceleration applications.
Patent Information
- Application Number
- CN202323392345.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-12
AI Technical Summary
Traditional electric cylinders have shortcomings in anti-deflection accuracy and anti-torsion torque, and cannot effectively ensure high accuracy, and external guide devices are usually required.
Design an integrated electric cylinder with a guide rod structure, and drives the ball screw assembly and the piston transmission assembly through a servo motor, combining the linear bearings and guide rods in the guide assembly to realize the support motion guidance of the mounting panel, so that the piston rod can withstand it. Large torsion resistance torque ensures anti-deflection accuracy and does not require additional external guide devices.
It realizes that the anti-deflection accuracy and torsional torque resistance of the electric cylinder are improved without adding external guide devices, and the working efficiency and positioning accuracy are improved. It is suitable for areas of high-precision and multi-point positioning requirements.
Smart Images
Figure CN222169516U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electric cylinders, in particular to an integrated electric cylinder with a guide rod structure. Background Art
[0002] The electric cylinder is a modular product that integrates the servo motor and the lead screw. It converts the rotational motion of the servo motor into linear motion. At the same time, it converts the best advantages of the servo motor - precise speed control, precise rotation speed control, and precise torque control - into precise speed control, precise position control, and precise thrust control, realizing a new revolutionary product in the high-precision linear motion series.
[0003] However, the traditional electric cylinder cannot guarantee good anti-deflection accuracy, and the rod cannot withstand a large anti-torsion torque; an external guide device needs to be added.
[0004] In summary, in order to solve the deficiencies in the prior art, it is necessary to design an electric cylinder with a simple integrated structure and a guide rod structure. Utility Model Content
[0005] The utility model provides an integrated electric cylinder with a guide rod structure to solve the problems of the prior art.
[0006] The purpose of the utility model can be achieved through the following technical solutions: An integrated electric cylinder with a guide rod structure includes: a cylinder body, a servo motor, a ball screw assembly, a piston transmission assembly, a guide assembly and a mounting panel, a channel one is provided in the middle of the cylinder body, and channel two are symmetrically provided on both sides of the channel one, the ball screw assembly and the piston transmission assembly are arranged in channel one, the servo motor is arranged on the outside of the cylinder body and connected to the ball screw assembly, one end of the piston transmission assembly is transmission-connected to the ball screw assembly, the piston rod in the piston transmission assembly extends out of channel one and is connected to the mounting panel, the guide assembly is arranged in channel two, the guide assembly includes a linear bearing and a guide rod, the guide rod is arranged inside the linear bearing, and the guide rod extends out of channel two and is connected to the mounting panel.
[0007] A further improvement is that a guide sleeve is provided at the front end of the piston rod, a retaining spring is provided inside the left end face of the channel, the piston transmission assembly includes a piston, one end of the piston rod is arranged inside the piston, a wear-resistant ring is provided outside the piston, and a magnetic ring is provided outside the piston and located inside the wear-resistant ring.
[0008] As a further improvement, the right side of the ball screw assembly is connected to the servo motor via a coupling, a bearing seat is provided between the ball screw assembly and the coupling, an angular contact ball bearing is provided on the end face of the bearing seat, and the screw in the ball screw assembly is connected to the angular contact ball bearing.
[0009] As a further improvement, an anti-collision pad is provided on the end face of the angular contact ball bearing.
[0010] As a further improvement, a second anti-collision pad is provided on the left end surface of the cylinder body, and a second retaining spring is provided inside the left end surface of the second channel.
[0011] As a further improvement, a motor seat is provided on one side of the cylinder body, and the servo motor is installed on one side of the motor seat.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The ball screw assembly is driven by a servo motor to move, which in turn drives the piston transmission assembly to move, and then drives the mounting panel to reciprocate. The linear bearings and guide rods in the guide assembly cooperate on both sides of the mounting panel to support and guide the movement of the mounting panel, so that the piston rod can withstand a large anti-torsion torque and ensure good anti-deflection accuracy without the need to add external guide devices. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the utility model
[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model
[0016] In the figure, 1-cylinder body, 11-channel one, 12-channel two, 2-servo motor, 21-motor seat, 3-ball screw assembly, 31-coupling, 32-bearing seat, 33-angular contact ball bearing, 34-screw, 35-anti-collision pad one, 36-anti-collision pad two, 37-circlip two, 4-piston transmission assembly, 41-piston rod, 42-guide sleeve, 43-circlip one, 44-piston, 45-wear-resistant ring, 46-magnetic ring, 5-guide assembly, 51-linear bearing, 52-guide rod, 6-mounting panel. DETAILED DESCRIPTION
[0017] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] The following is combined with the embodiments and attached Figures 1-2 , the technical solution of the utility model is further elaborated.
[0020] Example 1
[0021] An integrated electric cylinder with a guide rod structure comprises: a cylinder body 1, a servo motor 2, a ball screw assembly 3, a piston transmission assembly 4, a guide assembly 5 and a mounting panel 6, wherein a channel 11 is provided in the middle portion of the cylinder body 1, and channels 12 are symmetrically provided on both sides of the channel 11, the ball screw assembly 3 and the piston transmission assembly 4 are arranged in the channel 11, the servo motor 2 is arranged on the outside of the cylinder body 1 and connected to the ball screw assembly 3, one end of the piston transmission assembly 4 is transmission-connected to the ball screw assembly 3, a piston rod 41 in the piston transmission assembly 4 extends out of the channel 11 and is connected to the mounting panel 6, the guide assembly 5 is arranged in the channel 2 12, the guide assembly 5 comprises a linear bearing 51 and a guide rod 52, the guide rod 52 is arranged in the linear bearing 51, and the guide rod 52 extends out of the channel 2 12 and is connected to the mounting panel 6.
[0022] like Figure 1-2 As shown, the working principle of the utility model is: the servo motor 2 drives the ball screw assembly 3 to move, which in turn drives the piston transmission assembly 4 to move, and then drives the mounting panel 6 to reciprocate. The linear bearings 51 and the guide rods 52 in the guide assembly 5 cooperate on both sides of the mounting panel 6 to support and guide the movement of the mounting panel 6, so that the piston rod can withstand a larger anti-torsion torque, ensuring better anti-deflection accuracy, and there is no need to add an external guide device.
[0023] The electric steel cylinder body continues to use the three-axis cylinder body; it is mainly used in workstations that prevent rod deflection and in situations where positioning requirements are high; the combination of servo motors and ball screws can make up for the shortcomings of existing electric cylinders, and has a great improvement in the corresponding speed, work efficiency, positioning accuracy, multi-point positioning, and acceleration and deceleration settings, and can be applied to a wider range of fields.
[0024] As a further preferred embodiment, a guide sleeve 42 is provided at the front end of the piston rod 41, a retaining spring 43 is provided inside the left end surface of the channel 11, the piston transmission assembly 4 includes a piston 44, one end of the piston rod 41 is arranged inside the piston 44, a wear-resistant ring 45 is provided outside the piston 44, and a magnetic ring 46 located inside the wear-resistant ring 45 is provided outside the piston.
[0025] As a further preferred embodiment, the right side of the ball screw assembly 3 is connected to the servo motor 2 through a coupling 31, a bearing seat 32 is provided between the ball screw assembly 3 and the coupling 31, an angular contact ball bearing 33 is provided on the end face of the bearing seat 32, and a screw 34 in the ball screw assembly 3 is connected to the angular contact ball bearing 33.
[0026] As a further preferred embodiment, the end surface of the angular contact ball bearing 33 is provided with an anti-collision pad 35, and the anti-collision pad 35 can increase the internal service life and reduce the noise between the piston and the angular contact ball bearing 33.
[0027] As a further preferred embodiment, the left end face of the cylinder body 1 is provided with an anti-collision pad 2 36 , and the left end face of the channel 2 12 is provided with a retaining spring 2 37 . The anti-collision pad 2 36 can reduce the noise between the installation panel and the cylinder body.
[0028] As a further preferred embodiment, a motor seat 21 is provided on one side of the cylinder body 1 , and the servo motor 2 is installed on one side of the motor seat 21 .
[0029] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. An integrated electric cylinder with a guide rod structure, characterized in that: include: A cylinder body, a servo motor, a ball screw assembly, a piston transmission assembly, a guide assembly and an installation panel, wherein a channel one is provided in the middle of the cylinder body, and channel two are symmetrically provided on both sides of the channel one, the ball screw assembly and the piston transmission assembly are arranged in channel one, the servo motor is arranged on the outside of the cylinder body and connected to the ball screw assembly, one end of the piston transmission assembly is transmission-connected to the ball screw assembly, the piston rod in the piston transmission assembly extends out of channel one and is connected to the installation panel, the guide assembly is arranged in channel two, the guide assembly includes a linear bearing and a guide rod, the guide rod is arranged inside the linear bearing, and the guide rod extends out of channel two and is connected to the installation panel.
2. The integrated electric cylinder with a guide rod structure according to claim 1, characterized in that: A guide sleeve is provided at the front end of the piston rod, a retaining spring is provided inside the left end face of the channel, the piston transmission assembly includes a piston, one end of the piston rod is arranged inside the piston, a wear-resistant ring is provided outside the piston, and a magnetic ring is provided outside the piston and located inside the wear-resistant ring.
3. The integrated electric cylinder with a guide rod structure according to claim 1, characterized in that: The right side of the ball screw assembly is connected to the servo motor through a coupling, a bearing seat is provided between the ball screw assembly and the coupling, an angular contact ball bearing is provided on the end face of the bearing seat, and the screw in the ball screw assembly is connected to the angular contact ball bearing.
4. The integrated electric cylinder with a guide rod structure according to claim 3, characterized in that: The end surface of the angular contact ball bearing is provided with an anti-collision pad 1.
5. The integrated electric cylinder with a guide rod structure according to claim 1, characterized in that: A second anti-collision pad is arranged on the left end surface of the cylinder body, and a second retaining spring is arranged inside the left end surface of the second channel.
6. The integrated electric cylinder with a guide rod structure according to claim 1, characterized in that: A motor seat is provided on one side of the cylinder body, and the servo motor is installed on one side of the motor seat.