Ball screw with segmentally combined connection

Abstract

This utility model relates to the field of ball screws, and more particularly to a segmented, modularly connectable ball screw, comprising a frame assembly, a first assembly connected to the frame assembly, and a second assembly connected to the first assembly. This utility model improves the reliable self-locking function of the ball screw after modular connection by utilizing the cooperation between a spring-loaded support block on the second screw and a groove on the first screw. Once connected, it effectively prevents relative movement between the first and second screws, ensuring the stability of the overall structure after modular assembly. A guide groove ensures the accuracy of the support block's movement. When disassembly of the ball screw is required, only appropriate external force needs to be applied to overcome the spring force, allowing the latch and support block to be pushed out of the second slot and the first groove, thereby unlocking the ball screw. The first spring makes the reset and locking processes spontaneous, greatly simplifying operation and improving overall efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of ball screws, and more particularly to a ball screw that can be segmented and combined. Background Technology

[0002] In the field of modern industrial automation, ball screws, as key linear motion actuators, are widely used in CNC machine tools, precision measuring equipment and other fields. Segmented ball screws decompose the original long ball screw into multiple independent short segments. These short segments are combined together through specific connectors to achieve a longer transmission length and bring many technical advantages.

[0003] Currently, most segmented ball screws have relatively simple connection structures, resulting in low accuracy after connection and a significant decrease in the stability of the overall transmission. Furthermore, the installation and alignment of some structures are complex, reducing the overall assembly efficiency. Utility Model Content

[0004] In order to overcome the problems of decreased overall transmission stability and low overall assembly efficiency caused by the existing structure.

[0005] The technical solution of this utility model is: a segmented and combinable ball screw, including a frame assembly, a first assembly connected to the frame assembly, and a second assembly connected to the first assembly. The frame assembly includes a slide connected to the first assembly, a first lead screw connected to the slide, and a second lead screw connected to the first lead screw; The first assembly includes a protruding shaft connected to a first lead screw and a first connector connected to the first lead screw; The second assembly includes a recess formed on the second lead screw and a second connector connected to the second lead screw.

[0006] Preferably, the frame assembly further includes studs connected to the second lead screw, wherein there are two studs symmetrically distributed on the outer surface of the second lead screw, and the length of the studs is less than the minor diameter of the second lead screw.

[0007] Preferably, the first assembly further includes a plurality of protrusions connected to the protruding shaft, the protrusions being circumferentially distributed on the outer side of the end of the protruding shaft, and the second connector being connected to the right end of the second lead screw via a stud.

[0008] Preferably, the first assembly further includes a latch connected to the second lead screw, a first spring connected to the latch, and a groove formed on the protruding shaft. One end of the first spring is fixedly connected to the second lead screw, and the other end of the first spring is fixedly connected to the right side of the latch. A step is provided on the left side of the latch.

[0009] Preferably, the second assembly further includes a guide groove formed on the recess and a first slot formed on the recess, wherein there are several guide grooves and they are circumferentially distributed on the side of the recess.

[0010] Preferably, the second assembly further includes a second spring connected to the recess, a support block connected to the second spring, and a second slot formed on the second lead screw. The end face of the second slot is provided with a step, and the support block is slidably connected to the inside of the recess.

[0011] The beneficial effects of this utility model are: 1. This utility model improves stability and reliability through segmented combination and internal locking structure. The cooperation between the support block loaded by the second spring on the second lead screw and the groove on the first lead screw improves the reliable self-locking function of the ball screw after combination. After connection, rotating the second support block will automatically lock into the groove, effectively preventing relative movement between the first and second lead screws and ensuring the stability of the overall structure after segmented combination. At the same time, the sliding of the support block under the guidance of the guide groove, combined with the preset force provided by the spring, makes the unlocking process simple and controllable. Smooth movement release can be achieved by overcoming the elastic force. 2. This utility model ensures the accuracy of the support block's movement through the guide groove, while the second slot serves as the interface for locking and unlocking. When the ball screw needs to be disassembled, only an appropriate external force needs to be applied to overcome the spring force, which will push the latch and support block out of the second slot and the first groove, thereby unlocking the ball screw. The first spring makes the reset and locking process spontaneous, greatly simplifying the operation and improving the overall efficiency and safety. Attached Figure Description

[0012] Figure 1 The diagram shown is a three-dimensional structural schematic of the ball screw of this utility model. Figure 2 The diagram shown is a three-dimensional structural schematic of the frame component of this utility model. Figure 3 The diagram shown is a three-dimensional structural schematic of the slide block of this utility model; Figure 4 The diagram shown is a three-dimensional structural schematic of the second assembly of this utility model; Figure 5 The diagram shown is a three-dimensional structural schematic of the first assembly of this utility model.

[0013] Explanation of reference numerals in the attached drawings: 1. Frame assembly; 2. First assembly; 3. Second assembly; 101. Slide; 102. First lead screw; 103. Second lead screw; 104. Stud; 201. Protrusion; 202. Protruding shaft; 203. First connector; 204. Tongue; 205. First spring; 206. Groove; 301. Second connector; 302. Guide groove; 303. Recess; 304. Second spring; 305. Support block; 306. First slot; 307. Second slot. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] A segmented, modular ball screw, according to Figures 1-5 As shown, a segmented and combinable ball screw includes a frame assembly 1, a first combi assembly 2 connected to the frame assembly 1, and a second combi assembly 3 connected to the first combi assembly 2. The frame assembly 1 includes a slide 101 connected to the first assembly 2, a first lead screw 102 connected to the slide 101, and a second lead screw 103 connected to the first lead screw 102. The first assembly 2 includes a protruding shaft 202 connected to the first lead screw 102 and a first connector 203 connected to the first lead screw 102. The second assembly 3 includes a recess 303 formed on the second lead screw 103 and a second connector 301 connected to the second lead screw 103.

[0016] according to Figure 2 The frame assembly 1 also includes studs 104 connected to the second lead screw 103. There are two studs 104 symmetrically distributed on the outer surface of the second lead screw 103. The length of the studs 104 is less than the minor diameter of the second lead screw 103.

[0017] It should be noted that the stud 104 can prevent the first lead screw 102 and the third lead screw 103, as well as the first connector 203 and the second connector 301 respectively, from relative displacement during rotation after installation, which would affect the stability of the overall structure. The stud 104 can be embedded in the second lead screw 103 to improve the sliding stability of the slide block 101.

[0018] according to Figure 3 and Figure 5 The first assembly 2 also includes a protrusion 201 connected to the protruding shaft 202. There are several protrusions 201 and they are circumferentially distributed on the outer side of the end of the protruding shaft 202. The second connector 301 is connected to the right end of the second lead screw 103 by a stud 104.

[0019] according to Figure 3 and Figure 5 The first assembly 2 also includes a latch 204 connected to the second lead screw 103, a first spring 205 connected to the latch 204, and a groove 206 formed on the protruding shaft 202. One end of the first spring 205 is fixedly connected to the second lead screw 103, and the other end of the first spring 205 is fixedly connected to the right side of the latch 204. A step is provided on the left side of the latch 204.

[0020] It should be noted that when the first lead screw 102 and the second lead screw 103 are connected, the first spring 205 will pull the latch 204, causing it to engage with the groove 206 on the protruding shaft 202, thereby locking it. When the step is rotated in the opposite direction for disassembly, the latch 204 can be pressed inward, making it easier to insert and remove.

[0021] according to Figure 3 and Figure 4 The second assembly 3 also includes a guide groove 302 formed on the recess 303 and a first slot 306 formed on the recess 303. The guide groove 302 has several grooves and is circumferentially distributed on the side of the recess 303.

[0022] according to Figure 3 and Figure 4 The second assembly 3 also includes a second spring 304 connected to the recess 303, a support block 305 connected to the second spring 304, and a second slot 307 opened on the second lead screw 103. The end face of the second slot 307 is provided with a step, and the support block 305 is slidably connected to the inside of the recess 303.

[0023] It should be noted that when the first lead screw 102 is connected to the second lead screw 103, rotating the first lead screw 102 can be locked by the protrusion 201 and the first slot 306, which plays an auxiliary locking role. After the protrusion 201 and the first slot 306 are connected, the second spring 304 can provide a reverse force to the protruding shaft 202 to improve stability.

[0024] 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. A ball screw of segmentally combinable connection, characterized by: It includes a frame component (1), a first assembly component (2) connected to the frame component (1), and a second assembly component (3) connected to the first assembly component (2). The frame assembly (1) includes a slide (101) connected to the first assembly (2), a first lead screw (102) connected to the slide (101), and a second lead screw (103) connected to the first lead screw (102). The first assembly (2) includes a protruding shaft (202) connected to the first lead screw (102) and a first connector (203) connected to the first lead screw (102). The second assembly (3) includes a recess (303) formed on the second lead screw (103) and a second connector (301) connected to the second lead screw (103).

2. The segmented, modularly connectable ball screw according to claim 1, characterized in that: The frame assembly (1) also includes studs (104) connected to the second lead screw (103). There are two studs (104) symmetrically distributed on the outer surface of the second lead screw (103). The length of the studs (104) is less than the minor diameter of the second lead screw (103).

3. The segmented, modularly connected ball screw according to claim 1, characterized in that: The first assembly (2) also includes a protrusion (201) connected to the protruding shaft (202), the protrusion (201) being a plurality of such protrusions and circumferentially distributed on the outer side of the end of the protruding shaft (202), and the second connector (301) being connected to the right end of the second lead screw (103) by a stud (104).

4. The segmented and combinable ball screw according to claim 1, characterized in that: The first assembly (2) further includes a latch (204) connected to the second lead screw (103), a first spring (205) connected to the latch (204), and a groove (206) formed on the protruding shaft (202). One end of the first spring (205) is fixedly connected to the second lead screw (103), and the other end of the first spring (205) is fixedly connected to the right side of the latch (204). A step is provided on the left side of the latch (204).

5. A segmented, modularly connectable ball screw according to claim 1, characterized in that: The second assembly (3) further includes a guide groove (302) formed on the recess (303) and a first slot (306) formed on the recess (303), wherein there are several guide grooves (302) and they are circumferentially distributed on the side of the recess (303).

6. The segmented, modularly connectable ball screw according to claim 1, characterized in that: The second assembly (3) further includes a second spring (304) connected to the recess (303), a support block (305) connected to the second spring (304), and a second slot (307) opened on the second lead screw (103). The end face of the second slot (307) is provided with a step, and the support block (305) is slidably connected to the inside of the recess (303).

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