Ball screw detection platform
By introducing protective and maintenance components into the ball screw testing platform, the problem of ball screws being susceptible to foreign matter contamination has been solved, achieving the effects of preventing wear, extending service life, and improving maintenance efficiency.
Patent Information
- Application Number
- CN202423320200.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-31
AI Technical Summary
When exposed, ball screws are susceptible to contamination by foreign objects, which can lead to wear on the screw surface, reduce accuracy and service life, and may even render them unusable.
A ball screw testing platform was designed, comprising a protective component and a maintenance component. The protective component prevents foreign objects from entering through a corrugated outer square tube and a magnetic surface layer, while the maintenance component achieves uniform oil coverage and reduces frictional loss through a hollow oil storage compartment and a one-way solenoid valve.
It effectively prevents foreign objects from entering, reduces the risk of failure, extends the service life of the lead screw, improves the efficiency of equipment maintenance and repair, and enhances the flexibility and functional expandability of equipment use.
Smart Images

Figure CN223897021U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing platform technology, specifically a ball screw testing platform. Background Technology
[0002] A ball screw testing platform is a specialized device used for performance testing, accuracy measurement, and quality assessment of ball screws. It typically includes a drive unit (such as a motor) to rotate the ball screw, as well as corresponding sensors, measuring instruments, and other components. It can detect various parameters of the ball screw, such as stroke accuracy, positioning accuracy, repeatability accuracy, axial clearance, and radial runout, thereby ensuring that the ball screw meets the high precision and high reliability requirements when used in CNC machine tools, automated equipment, industrial robots, and other mechanical devices.
[0003] The existing technology, authorized by publication number CN202690934U, is entitled "A Ball Screw," which includes a screw shaft, a nut, a reversing device, and two scrapers. Multiple balls are arranged sequentially between the grooves in the nut and the screw shaft. The two scrapers are made of polyethylene and are respectively located in the two ports of the nut. Furthermore, the scrapers made of polyethylene have advantages such as wear resistance, oil resistance, and non-deformation, extending the product's service life. This utility model is widely applicable to machine tools such as EDM machines, fine-hole machines, lathes, milling machines, machining centers, carton equipment, general-purpose machinery, and special-purpose machinery.
[0004] One type of ball screw in the above-mentioned device is widely used. However, when the ball screw is exposed during use, foreign objects are prone to fall onto it. During the relative movement between the screw and the nut, these foreign objects can get stuck between them, constantly rubbing against the screw surface and the balls like sandpaper. This causes scratches and wear on the screw threads, balls, and raceway surfaces of the nut, reducing the screw's accuracy and service life. Long-term accumulation may even lead to the screw becoming unusable. Utility Model Content
[0005] The technical problem solved by this utility model is that when the ball screw is in an exposed state, foreign objects are easy to fall onto the screw. During the relative movement between the screw and the nut, they will get stuck between them, constantly rubbing the screw surface and the balls like sandpaper. This causes scratches and wear on the screw threads, balls, and nut raceway surfaces, reducing the screw's accuracy and service life. Long-term accumulation may even lead to the screw being scrapped.
[0006] To solve the above-mentioned technical problems, this utility model provides a ball screw testing platform, including a screw assembly, a protective component on the outside of the screw assembly, and a maintenance component on the inside of the protective component;
[0007] The lead screw assembly includes two corresponding side support frames at the front and rear. The lead screw body is installed in the middle between the two side support frames. A pair of side limiting crossbars are installed on both sides between the two side support frames. The two side limiting crossbars are located on the left and right sides of the lead screw body, respectively. A displacement platform block is sleeved on the outer end of the lead screw body. A ball bearing sleeve is fixedly connected to the rear end of the displacement platform block.
[0008] The protective component includes corrugated outer square tubes installed on the front and rear sides of the displacement platform block. Both ends of the corrugated outer square tubes are fixedly connected to connecting follower blocks, and both ends of the connecting follower blocks are provided with multiple adapter holes.
[0009] The maintenance component includes an upper storage slot located above the central adapter hole, with a hollow oil storage compartment at the inner end of the upper storage slot, and a one-way solenoid valve fixedly connected to the lower end of the hollow oil storage compartment.
[0010] Preferably, a drive motor is fixedly connected to the rear end of the side support frame located at the rear, and the output end of the ball sleeve shaft is connected to the lead screw body.
[0011] Preferably, a through-hole is provided between the upper storage slot and the matching hole directly below it, and the inner end of the upper storage slot is filled with a certain amount of maintenance oil.
[0012] Preferably, multiple adapter holes are respectively fitted with the corresponding side limiting crossbar and lead screw body, and the ends of the two connecting follower blocks that are close to each other are fixedly connected with magnetic surface layers.
[0013] Preferably, electromagnetic connecting blocks are fixedly connected to both the front and rear ends and the upper and lower sides of the displacement platform block, and the electromagnetic connecting blocks are magnetically connected to the magnetic suction surface layer.
[0014] Preferably, the one-way solenoid valve extends into the corresponding through-hole, and the one-way solenoid valve cooperates with the lead screw body.
[0015] Preferably, the upper end of the displacement platform block is provided with mounting holes, which are located at the upper center of the displacement platform block.
[0016] Compared with related technologies, this utility model has the following beneficial effects:
[0017] 1. In this utility model, when the lead screw assembly is running, the corrugated outer square tube can effectively shield the side limit crossbar and the lead screw body, preventing foreign objects from entering and reducing the risk of failure. It is magnetically connected to the electromagnetic connecting block on the displacement platform block through the magnetic suction surface layer. The operator controls the on and off of the electromagnetic connecting block. When energized, it achieves a tight and stable cover. When de-energized, it can be flexibly opened, which facilitates the inspection, maintenance and cleaning of the lead screw body and improves the efficiency of equipment maintenance and repair.
[0018] 2. In this utility model, the hollow oil storage compartment above the magnetic surface layer can be opened by energizing the one-way solenoid valve according to the control terminal command during the maintenance of the lead screw body. Under the action of gravity and pressure difference, the maintenance oil is precisely guided to the surface of the lead screw body through the one-way solenoid valve and the connecting through-hole. With the help of the back and forth movement of the corrugated outer square tube, the oil can be fully and evenly covered on the lead screw body, effectively reducing the friction loss during operation and extending the service life of the lead screw.
[0019] 3. The mounting holes provided above the displacement platform block in this utility model allow users to easily add various types of platform plates according to different testing tasks and application scenarios, enhancing the flexibility and functional expandability of the equipment and enabling it to be widely adapted to various industrial testing and scientific research experimental needs.
[0020] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the lead screw assembly of this utility model from the axial side.
[0023] Figure 2 For the present utility model Figure 1 Axial view of the middle protective component;
[0024] Figure 3 For the present utility model Figure 1 A magnified schematic diagram of a partial truncated section of the lead screw body;
[0025] Figure 4 For the present utility model Figure 1 Enlarged structural diagram of a corrugated outer square tube;
[0026] Figure 5 For the present utility model Figure 4 Schematic diagram of the structure of the intermediate maintenance component.
[0027] Numbering on the map:
[0028] 1. Lead screw assembly; 100. Side support frame; 101. Drive motor; 102. Displacement platform block; 103. Side limit crossbar; 104. Lead screw body; 105. Mounting hole; 106. Ball bearing sleeve; 2. Protective assembly; 200. Corrugated outer square tube; 201. Connecting follower block; 202. Adaptor hole; 203. Magnetic surface layer; 204. Electromagnetic connection block; 3. Maintenance assembly; 300. Through-hole; 301. Upper storage slot; 302. Hollow inner oil storage compartment; 304. One-way solenoid valve. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figure 1-5 A ball screw testing platform includes an assembly component 1, an auxiliary component 2 is provided at the upper end of the assembly component 1, an improved component 3 is provided at the lower end of the auxiliary component 2, and a linkage component 4 is provided at the left end of the improved component 3.
[0031] The assembly component 1 includes multiple assembled wall panels 102, and the inner end of the assembled wall panel 102 is provided with a steel cage 100.
[0032] Auxiliary component 2 includes a drive box 200, the output end of which is connected to a vibrating tube 202; Improved component 3 includes a top collar 303, which is fitted on the upper side of the outer end of the vibrating tube 202. Connecting vertical pieces 302 are symmetrically fixedly connected to the lower end of the top collar 303 on both the front and rear sides. The lower ends of the two connecting vertical pieces 302 are fixedly connected to a bottom hollow sleeve 300, which is located on the lower side of the outer end of the vibrating tube 202. Sharp-angled insertion rods 301 are symmetrically arranged on the left and right sides of the lower end of the bottom hollow sleeve 300.
[0033] A drive motor 101 is fixedly connected to the rear end of a side support frame 100 located on the rear side. The output end of the ball sleeve cylinder 106 is connected to the lead screw body 104. A through-hole 300 is provided between the upper storage slot 301 and the matching hole 202 directly below it. The inner end of the upper storage slot 301 is filled with a number of maintenance oils. The multiple matching holes 202 are respectively fitted with the corresponding side limit crossbar 103 and lead screw body 104.
[0034] Two connecting follower blocks 201 are fixedly connected to magnetic surface layers 203 at their close ends. Electromagnetic connecting blocks 204 are fixedly connected to the front and rear ends and the upper and lower sides of the displacement platform block 102. The electromagnetic connecting blocks 204 are magnetically connected to the magnetic surface layers 203. The one-way solenoid valve 304 passes through the corresponding through-hole 300. The one-way solenoid valve 304 cooperates with the lead screw body 104.
[0035] Please refer to 1-4. Through the magnetic attraction layers 203 on both sides of the corrugated outer square tube 200, operators can flexibly control the on / off state of the electromagnetic connecting block 204 according to actual needs. When the electromagnetic connecting block 204 is energized, the corrugated outer square tube 200 can tightly and securely cover the relevant parts of the lead screw assembly. When it is necessary to inspect, maintain, or clean the surface of the lead screw body 104, simply operate the control terminal to de-energize the electromagnetic connecting block 204. This conveniently and flexibly opens and closes the corrugated outer square tube 200, improving the efficiency of equipment maintenance and repair.
[0036] The upper end of the displacement platform block 102 is provided with a mounting hole 105, which is located in the upper middle part of the displacement platform block 102.
[0037] Please refer to 3. Through the above-mentioned mounting holes 105, users can conveniently and quickly install various types of platform boards on the displacement platform block 102 according to different detection task requirements and diverse application scenarios.
[0038] The specific implementation process of this utility model is as follows: In this solution, when the lead screw assembly 1 is open and in operation, the corrugated outer square tube 200 can comprehensively and properly shield the area where the side limiting crossbar 103 and the crucial lead screw body 104 are located in the lead screw assembly 1, reducing the risk of malfunctions caused by foreign object intrusion. On the magnetic suction surface layer 203 on the front and rear sides of the corrugated outer square tube 200, the operator can flexibly control the on / off state of the electromagnetic connecting block 204 according to actual needs. When the electromagnetic connecting block 204 is energized, the corrugated outer square tube 200 can tightly and firmly cover the relevant parts of the lead screw assembly. When it is necessary to inspect, maintain, or clean the surface of the lead screw body 104, it is only necessary to operate on the control terminal to de-energize the electromagnetic connecting block 204. At this time, the covering state of the corrugated outer square tube 200 can be easily and flexibly opened, improving the work efficiency of equipment maintenance and repair. In addition, a mounting hole 105 is provided above the displacement platform block 102. Users can easily and quickly install various types of platform plates on the displacement platform block 102 according to different detection task requirements and diverse application scenarios. At the same time, the hollow oil storage chamber 302 of the maintenance component 3 is set above the magnetic suction surface layer 203. When maintenance work is required on the lead screw body 104, a command is issued from the control terminal to energize and open the one-way solenoid valve 304. At this time, the maintenance oil in the hollow oil storage chamber 302 will flow down evenly and stably through the one-way solenoid valve 304 under the combined action of gravity and pressure difference. The oil will be accurately guided to the surface area of the lead screw body 104 along the connecting through-hole 300. Furthermore, since the corrugated outer square tube 200 moves back and forth during the operation of the equipment, the maintenance oil can achieve a comprehensive and uniform coverage on the lead screw body 104 along the movement trajectory of the corrugated outer square tube 200, which can effectively reduce the frictional wear of the lead screw body 104 during operation and extend its service life.
[0039] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A ball screw testing platform, comprising a screw assembly (1), characterized in that, A protective component (2) is provided on the outside of the lead screw assembly (1), and a maintenance component (3) is provided on the inside of the protective component (2); The lead screw assembly (1) includes two corresponding side support frames (100) at the front and rear. A lead screw body (104) is installed in the middle between the two side support frames (100). A pair of side limiting crossbars (103) are installed on both sides between the two side support frames (100). The two side limiting crossbars (103) are located on the left and right sides of the lead screw body (104) respectively. A displacement platform block (102) is sleeved on the outer end of the lead screw body (104). A ball bearing sleeve (106) is fixedly connected to the rear end of the displacement platform block (102). The protective component (2) includes a corrugated outer square tube (200) disposed on the front and rear sides of the displacement platform block (102). Both ends of the corrugated outer square tube (200) are fixedly connected to a connecting follower block (201). Both ends of the connecting follower block (201) are provided with multiple adapter holes (202). The maintenance component (3) includes an upper storage slot (301) opened above the central adapter hole (202), the inner end of the upper storage slot (301) is provided with an oil storage inner block hollow chamber (302), and the lower end of the oil storage inner block hollow chamber (302) is fixedly connected with a one-way solenoid valve (304).
2. The ball screw testing platform according to claim 1, characterized in that: The rear end of the side support frame (100) located at the rear is fixedly connected to a drive motor (101), and the output end of the ball sleeve cylinder (106) is connected to the lead screw body (104).
3. The ball screw testing platform according to claim 1, characterized in that: A through-hole (300) is provided between the upper storage slot (301) and the matching hole (202) directly below it, and the inner end of the upper storage slot (301) is filled with a certain amount of maintenance oil.
4. The ball screw testing platform according to claim 1, characterized in that: The multiple adapter holes (202) are respectively fitted with the corresponding side limiting crossbars (103) and lead screw bodies (104), and the two connecting follower blocks (201) are fixedly connected to a magnetic surface layer (203) at their close ends.
5. The ball screw testing platform according to claim 4, characterized in that: Electromagnetic connecting blocks (204) are fixedly connected to both the front and rear ends and the upper and lower sides of the displacement platform block (102), and the electromagnetic connecting blocks (204) are magnetically connected to the magnetic suction surface layer (203).
6. The ball screw testing platform according to claim 3, characterized in that: The one-way solenoid valve (304) extends into the corresponding through-hole (300), and the one-way solenoid valve (304) cooperates with the lead screw body (104).
7. The ball screw testing platform according to claim 1, characterized in that: The upper end of the displacement platform block (102) is provided with a mounting hole (105), which is located in the upper middle part of the displacement platform block (102).
Citation Information
Patent Citations
Ball screw
CN202690934U