Semi-closed sliding table electric cylinder

Abstract

The utility model discloses a semi-closed sliding table electric cylinder. The semi-closed sliding table electric cylinder comprises a cylinder body assembly, a transmission assembly, a driver and a lead screw module. The cylinder body assembly comprises a cylinder body, a sliding table, a first sliding rail and a second sliding rail, an open type assembling groove is formed in the cylinder body, and first mounting grooves are oppositely formed in the two sides of the open type assembling groove; the first sliding rail is embedded in the first mounting groove, and a first sliding groove is formed in the first sliding rail; the first sliding groove is formed by grinding after the first sliding rail and the cylinder body are connected into a whole. Second mounting grooves are oppositely formed in the two sides of the sliding table, the second sliding rails are embedded in the second mounting grooves, and second sliding grooves are formed in the second sliding rails; the second sliding groove is formed by grinding after the second sliding rail and the sliding table are connected into a whole. The second sliding rail and the first sliding rail are in sliding connection through balls. According to the utility model, the straightness and flatness of the sliding table and the sliding rail on the cylinder body are consistent, so that the sliding table moves more stably and smoothly, and the precision and performance of the electric cylinder are improved.

Description

Technical Field

[0001] This utility model relates to the field of electric cylinder technology, and in particular to a semi-enclosed slide table electric cylinder. Background Technology

[0002] A slide table electric cylinder is a precision actuator that converts the rotary motion of a servo motor / stepper motor into linear motion. It is widely used in automation equipment, machine tools, robots and other fields.

[0003] In existing technology, the slide table and the slide rails on the cylinder body of the electric cylinder are clamped and processed on different machining equipment, and then the slide rails are manually assembled onto the cylinder body and the slide table. However, the separate processing of the slide rails on the slide table and the cylinder body leads to the accumulation of tolerances, and the assembly process relies on manual labor, which is inefficient and inconsistent. This results in differences in the straightness and flatness of the slide rails on the slide table and the cylinder body, thus affecting the performance and accuracy of the electric cylinder.

[0004] Therefore, in order to solve the above problems, it is necessary to develop a semi-enclosed slide table electric cylinder. Unprocessed slide rails are embedded into the slide table and cylinder body respectively. Then, the slide table and cylinder body are ground by grinding equipment to ensure that the straightness and flatness of the slide rails on the slide table and cylinder body are consistent, so that the slide table moves more smoothly and steadily, and the accuracy and performance of the electric cylinder are improved. Utility Model Content

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A semi-enclosed slide electric cylinder, characterized in that it includes a cylinder body assembly, a transmission assembly, a driver, and a lead screw module;

[0007] The cylinder assembly includes a cylinder, a slide, a first slide rail and a second slide rail. An open assembly slot is provided inside the cylinder, extending from one end to the other. First mounting slots are provided on opposite sides of the open assembly slot.

[0008] The first slide rail is provided in a one-to-one correspondence with the first mounting groove, the first slide rail is embedded in the first mounting groove, and the first slide rail is provided with a first slide groove;

[0009] The first slide groove is formed by connecting the first slide rail and the cylinder body into one piece and then grinding it.

[0010] The slide is slidably disposed in an open assembly slot, and second mounting slots are provided on both sides of the slide, with the second mounting slots corresponding one-to-one with the first mounting slots.

[0011] The second slide rail is provided in a one-to-one correspondence with the second mounting groove, the second slide rail is embedded in the second mounting groove, and the second slide rail is provided with a second slide groove;

[0012] The second slide groove is formed by connecting the second slide rail and the slide table into one piece and then grinding it into shape;

[0013] A plurality of balls are provided between the second slide rail and the first slide rail, and the balls are rotatably disposed between the first slide groove and the second slide groove;

[0014] The slide can move axially relative to the cylinder body via a first slide rail, ball bearings, and a second slide rail.

[0015] Preferably, a reflux device and a reversing device are respectively provided at both ends of the slide table.

[0016] Preferably, the surfaces of the reflux device and the reverser away from the slide table are respectively provided with reinforcing plates.

[0017] Preferably, the cylinder assembly further includes a front end cap and a rear end cap respectively connected to both ends of the cylinder;

[0018] The lead screw module includes a lead screw and a nut threadedly connected to the lead screw. The lead screw is rotatably mounted in an open assembly slot in the cylinder body. One end of the lead screw is rotatably connected to the front end cover, and the other end passes through the rear end cover and is connected to the drive end of the driver through a transmission assembly. The nut and the slide are not rotatably connected to each other.

[0019] Preferably, bearings are provided between the lead screw and the front end cover, and between the lead screw and the rear end cover, and the bearings are fixedly connected to the front end cover or the rear end cover.

[0020] Preferably, the bearing on the front end cover is a deep groove ball bearing, and the bearing on the rear end cover is a radial ball bearing.

[0021] Preferably, the transmission assembly includes a transmission housing and a coupling, the driver is connected to the rear end cover through the transmission housing, and the drive end of the driver is connected to the lead screw through the coupling.

[0022] Preferably, the cylinder assembly further includes an upper cover located above the open mounting slot of the cylinder, with the two ends of the upper cover connected to the front cover and the rear cover respectively, and the two sides of the upper cover and the cylinder forming a clearance opening.

[0023] The connection end between the slide and the outside extends from the clearance port to the outside of the cylinder body.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This invention embeds unprocessed slide rails into the slide table and cylinder body respectively, and then grinds the slide rails embedded in the slide table and cylinder body using grinding equipment. Compared with the existing technology that directly assembles the processed slide rails onto the cylinder body and slide table, this invention ensures that the straightness and flatness of the slide rails on the slide table and cylinder body are consistent, making the slide table move more smoothly and steadily, thereby improving the precision and performance of the electric cylinder. Attached Figure Description

[0026] Figure 1 This is a top view of the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the middle AA section;

[0028] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the middle BB section;

[0029] The components include: cylinder block assembly 1, transmission assembly 2, driver 3, lead screw module 4, return valve 5, reverser 6, reinforcing plate 7, bearing 8, cylinder block 11, slide table 12, first slide rail 13, second slide rail 14, front end cover 15, rear end cover 16, top cover 17, transmission housing 21, coupling 22, lead screw 41, nut 42, open assembly slot 110, second mounting slot 12a, first slide groove 13a, second slide groove 14a, and first mounting slot 110a. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0034] like Figure 1-3 As shown, a semi-enclosed slide table 12 electric cylinder includes a cylinder body assembly 1, a transmission assembly 2, a driver 3, and a lead screw module 4;

[0035] The cylinder assembly 1 includes a cylinder 11, a slide table 12, a first slide rail 13 and a second slide rail 14. An open assembly groove 110 extending from one end to the other is provided inside the cylinder 11. First mounting grooves 110a are provided on opposite sides of the open assembly groove 110.

[0036] The first slide rail 13 is provided in a one-to-one correspondence with the first mounting groove 110a. The first slide rail 13 is embedded in the first mounting groove 110a, and the first slide rail 13 is provided with a first slide groove 13a.

[0037] The first slide groove 13a is formed by connecting the first slide rail 13 and the cylinder body 11 into one piece and then forming it by grinding.

[0038] The slide table 12 is slidably disposed in the open assembly slot 110. The two sides of the slide table 12 are provided with second mounting slots 12a, which are respectively provided with the first mounting slots 110a.

[0039] The second slide rail 14 is provided in a one-to-one correspondence with the second mounting groove 12a. The second slide rail 14 is embedded in the second mounting groove 12a, and the second slide rail 14 is provided with a second slide groove 14a.

[0040] The second slide groove 14a is formed by connecting the second slide rail 14 and the slide table 12 into one piece and then forming it by grinding.

[0041] A plurality of balls (not shown in the figure) are provided between the second slide rail 14 and the first slide rail 13, and the balls are rotatably disposed between the first slide groove 13a and the second slide groove 14a;

[0042] The slide table 12 can move axially relative to the cylinder 11 via the first slide rail 13, ball bearings, and the second slide rail 14.

[0043] In this embodiment, the above structure embeds the unprocessed slide rails into the slide table 12 and the cylinder 11 respectively. Then, the slide table 12 and the cylinder 11 are ground by grinding equipment to process the embedded slide rails. Compared with the existing technology that directly assembles the processed slide rails onto the cylinder 11 and the slide table 12, this ensures that the straightness and flatness of the slide rails on the slide table 12 and the cylinder 11 are consistent, making the slide table 12 move more smoothly and steadily, thereby improving the accuracy and performance of the electric cylinder.

[0044] In this embodiment, after being embedded, the first slide rail 13 is fixedly connected to the cylinder body 11, and the second slide rail 14 is fixedly connected to the slide table 12.

[0045] Furthermore, such as Figure 1-3 As shown, in order to prevent the balls from dislodging from the second slide rail 14 and to ensure that the balls return smoothly during the movement, maintaining the continuity and stability of the transmission, a return device 5 and a reverser 6 are respectively provided at both ends of the slide table 12.

[0046] Furthermore, such as Figure 1-3 As shown, in order to prevent damage to the reflux 5 and the reverser 6 during the transmission process, the reflux 5 and the reverser 6 are respectively provided with reinforcing plates 7 on the end surfaces away from the slide table 12.

[0047] Furthermore, such as Figure 1-3 As shown, the cylinder assembly 1 also includes a front end cap 15 and a rear end cap 16 that are respectively connected to both ends of the cylinder 11;

[0048] The lead screw module 4 includes a lead screw 41 and a nut 42 threadedly connected to the lead screw 41. The lead screw 41 is rotatably disposed in the open assembly slot 110 of the cylinder body 11. One end of the lead screw 41 is rotatably connected to the front end cover 15, and the other end passes through the rear end cover 16 and is connected to the drive end of the driver 3 through the transmission assembly 2. The nut 42 and the slide table 12 are not rotatably connected to each other.

[0049] In this embodiment, the driver 3 drives the lead screw 41 to rotate through the transmission assembly 2. The rotation of the lead screw 41 causes the slide 12 to move linearly relative to the cylinder 11, thereby driving the slide 12.

[0050] Furthermore, in order to improve the coaxiality and stability of the lead screw 41 rotation, bearings 8 are respectively provided between the lead screw 41 and the front end cover 15, and between the lead screw 41 and the rear end cover 16, and the bearings 8 are fixedly connected to the front end cover 15 or the rear end cover 16.

[0051] Furthermore, such as Figure 1-3 As shown, in order to improve the radial load capacity of the lead screw 41 and ensure the smooth and stable movement of the slide table 12, the bearing 8 on the front end cover 15 is a deep groove ball bearing 8, and the bearing 8 on the rear end cover 16 is a radial ball bearing 8.

[0052] Furthermore, such as Figure 1-3 As shown, the transmission assembly 2 includes a transmission housing 21 and a coupling 22. The driver 3 is connected to the rear end cover 16 through the transmission housing 21, and the driving end of the driver 3 is connected to the lead screw 41 through the coupling 22.

[0053] Furthermore, such as Figure 1-3 As shown, in order to protect the internal structure of the cylinder body 11 while ensuring the smooth and unobstructed movement of the slide 12, the cylinder body assembly 1 also includes an upper cover 17 located above the open assembly slot 110 of the cylinder body 11. The two ends of the upper cover 17 are respectively connected to the front cover 15 and the rear cover 16, and the two sides of the upper cover 17 and the cylinder body 11 form a clearance opening.

[0054] The connection end of the slide 12 to the outside extends from the clearance port to the outside of the cylinder 11.

[0055] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A semi-enclosed slide cylinder, characterized by Cylinder assembly, transmission assembly, driver and screw module are included. The cylinder assembly includes a cylinder, a sliding table, a first sliding rail and a second sliding rail. The first sliding rail is correspondingly arranged in the first mounting slot. The first sliding groove is formed by the first sliding rail and the cylinder and then is processed by grinding. The sliding table is slidably arranged in the open assembly slot. The second sliding rail is correspondingly arranged in the second mounting slot. The second sliding groove is formed by the second sliding rail and the sliding table and then is processed by grinding. The second sliding rail and the first sliding rail are provided with a plurality of balls. The sliding table is axially movable relative to the cylinder through the first sliding rail, the balls and the second sliding rail.

2. A semi-enclosed linear motor as claimed in claim 1, wherein, The sliding table is provided with a refluxer and a reverser at both ends.

3. A semi-enclosed linear motor as claimed in claim 2, wherein, The refluxer and the reverser are provided with reinforcing plates at the surfaces away from the sliding table.

4. A semi-enclosed linear motor as claimed in claim 1, wherein, The cylinder assembly further includes a front end cover and a rear end cover connected to both ends of the cylinder. The screw module includes a screw and a nut threadedly connected to the screw.

5. A semi-enclosed linear motor as claimed in claim 4, wherein, The screw is rotatably arranged in the open assembly slot of the cylinder.

6. A semi-enclosed linear motor as claimed in claim 5, wherein, The screw is rotatably connected to the front end cover at one end and is rotatably connected to the driving end of the driver through the transmission assembly and the rear end cover at the other end.

7. A semi-enclosed linear motor as claimed in claim 4, wherein, The nut is non-rotatably connected to the sliding table.

8. A semi-enclosed linear motor as claimed in claim 4, wherein, The screw and the front end cover, and the screw and the rear end cover are respectively provided with bearings fixedly connected to the front end cover or the rear end cover. The bearing on the front end cover is a deep groove ball bearing, and the bearing on the rear end cover is a radial ball bearing. The transmission assembly includes a transmission housing and a shaft coupling. The driver is connected to the rear end cover through the transmission housing. The driving end of the driver is connected to the screw through the shaft coupling. The cylinder assembly further includes an upper cover above the open assembly slot of the cylinder. The upper cover is connected to the front end cover and the rear end cover at both ends. The sliding table and the external connection end extend from the avoiding opening to the outside of the cylinder.

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