End plug type large-lead miniature ball screw assembly

Abstract

The utility model discloses an end plug type large-lead miniature ball screw pair, which relates to the technical field of ball screw pairs and comprises a lead screw and an air blowing component. A ball returning device is installed on the surface of the lead screw, an air injection assembly is installed on the front side of the ball returning device, a connecting assembly is installed at the upper end of the air injection assembly, and two corresponding air guide assemblies are installed at the left end and the right end of the connecting assembly; the air blowing assembly comprises connecting blocks, air guide holes, inclined pipes and air inlet pipes, the two corresponding connecting blocks are fixed to the left side and the right side of the bead returning device, the two corresponding air guide holes are formed in the left side and the right side of the interior of each connecting block, the inclined pipes are fixed to the lower ends of the interiors of the air guide holes, and the air inlet pipes are fixed to the upper ends of the interiors of the air guide holes; and a cleaning assembly is installed in the middle of the connecting block, the two air guide assemblies are connected with the left air inlet pipe and the right air inlet pipe correspondingly, the lead screw can be cleaned during moving, and oil dirt can be prevented from adhering to the scraper blade.

Description

Technical Field

[0001] This utility model relates to the field of ball screw pair technology, specifically to end-plug type large lead micro ball screw pair. Background Technology

[0002] End-plug type large lead miniature ball screw pair is a specially designed ball screw with high speed, low noise, high load capacity and high reliability. It is widely used in many fields. It can convert rotary motion into linear motion or vice versa. Therefore, the ball screw pair is both a transmission component and a component that converts linear motion into rotary motion. Ball screw pairs are often used in CNC production workshops. Because the working environment of CNC production workshops is relatively harsh, a lot of dust can easily adhere to the screw during the operation of the ball screw pair. The dust enters the ball return device and affects the normal use of the ball screw pair.

[0003] In related technologies, existing methods for dust prevention in ball screw assemblies typically involve scraping dust and debris from the inner wall of the screw thread grooves using scrapers or brushes. However, since the outer surface of the screw contains lubricating oil, it forms grease when in contact with dust. When scraped off with a scraper, the grease tends to adhere to the scraper, which over time affects the normal dust prevention effect of the ball screw assembly. To address this, we propose an end-plug type large-lead micro ball screw assembly. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an end-plug type large lead micro ball screw pair that can clean the screw during movement and prevent oil stains from sticking to the scraper, thus effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plug-type large lead micro ball screw pair, including a screw and an air blowing assembly;

[0006] Lead screw: A ball return device is installed on the surface, an air injection component is installed on the front side of the ball return device, a connecting component is installed on the upper end of the air injection component, and two corresponding air guide components are installed on the left and right ends of the connecting component.

[0007] Air blowing assembly: includes connecting blocks, air guide holes, inclined tubes and air inlet tubes. Two corresponding connecting blocks are fixed on the left and right sides of the bead returner. Two corresponding air guide holes are opened on the left and right sides inside the connecting blocks. An inclined tube is fixed to the lower end of the air guide hole, and an air inlet tube is fixed to the upper end of the air guide hole. A cleaning assembly is installed in the middle of the connecting block. The two air guide assemblies are respectively connected to the four air inlet tubes on the left and right. The front and rear sides of the two scrapers are cleaned by setting two connecting blocks.

[0008] Furthermore, the cleaning assembly includes a fixing frame, an electric telescopic rod, and a scraper. An opening is provided in the middle of the connecting block, and a scraper is slidably connected inside the opening. The lower side of the scraper is located in the threaded groove of the lead screw. A fixing frame is fixed to the upper side of the connecting block, and an electric telescopic rod is installed on the upper side of the fixing frame. The telescopic arm of the electric telescopic rod is fixed to the upper side of the scraper. The input end of the electric telescopic rod is electrically connected to the output end of an external control switch group. The lead screw is cleaned by setting up the cleaning assembly.

[0009] Furthermore, the air guiding assembly includes a connecting pipe and a fixing pipe. A connecting pipe is provided on the upper side of the connecting block. The two ends of the connecting pipe are respectively fixed inside the two adjacent air intake pipes. An opening is provided on the circumferential surface of the connecting pipe. A fixing pipe is fixed inside the opening. Compressed air is injected into the interior of the four air intake pipes by setting the air guiding assembly.

[0010] Furthermore, the connecting assembly includes a connecting hose and a one-way valve. The two fixed pipes are connected by the connecting hose, and two corresponding one-way valves are installed on the circumferential surface of the connecting hose. Compressed air is injected into the interior of the two fixed pipes by setting the connecting assembly.

[0011] Furthermore, the air injection assembly includes an air pump and an air outlet pipe. An air pump is installed on the front side of the bead return device. An air outlet pipe is fixed inside the air outlet of the air pump. The upper end of the air outlet pipe is fixed on the circumferential surface of the connecting hose. The air outlet pipe is located between two one-way valves and is connected to the connecting hose. The input end of the air pump is electrically connected to the output end of an external control switch group. Compressed air is injected into the interior of the connecting hose by setting the air injection assembly.

[0012] Furthermore, two corresponding support frames are fixed on the front side of the ball return device, and a support tube is fixed on the upper side of the support frame. The two support tubes are sleeved on the circumferential surface of the connecting hose, and the connecting hose is supported by the two support tubes.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This end-plug type large lead micro ball screw pair has the following advantages:

[0014] 1. By setting up a cleaning component, two scrapers will move along the thread groove of the lead screw as the ball returner moves along the lead screw. During this movement, the dust inside the thread groove of the lead screw can be cleaned. After cleaning, the oil stains caused by dust in the thread groove of the lead screw can be prevented from affecting the movement of the ball returner.

[0015] 2. By setting up an air injection component, after the two scrapers clean the thread grooves of the lead screw, the two electric telescopic rods are controlled to retract. The retraction of the two electric telescopic rods causes the two scrapers to move downwards. At this time, the two connecting blocks will clean the front and rear sides of the two scrapers. After cleaning, the air pump is started to inject compressed air into the interior of the two connecting pipes through the air outlet pipe. The air entering the two connecting pipes is blown into the interior of the four air guide holes, and then sprayed through the four oblique pipes onto the oil stains adhering to the front and rear sides of the two connecting blocks. In this way, the two connecting blocks can be cleaned, which facilitates the subsequent cleaning of the two scrapers, making it extremely convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model.

[0019] In the diagram: 1 lead screw, 2 ball return device, 3 air blowing assembly, 31 connecting block, 32 air guide hole, 33 oblique tube, 34 air inlet pipe, 4 cleaning assembly, 41 fixing frame, 42 electric telescopic rod, 43 scraper, 5 air guiding assembly, 51 connecting pipe, 52 fixing pipe, 6 connecting assembly, 61 connecting hose, 62 one-way valve, 7 air injection assembly, 71 air pump, 72 air outlet pipe, 8 support frame, 9 support pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0021] Please see Figure 1-3 This embodiment provides a technical solution: a plug-type large lead micro ball screw pair, including a screw 1 and an air blowing assembly 3;

[0022] Lead screw 1: A ball return device 2 is mounted on its surface. An air injection component 7 is mounted on the front side of the ball return device 2. A connecting component 6 is mounted on the upper end of the air injection component 7. Two corresponding air guide components 5 are mounted on the left and right ends of the connecting component 6. The air guide component 5 includes a connecting pipe 51 and a fixing pipe 52. A connecting pipe 51 is provided on the upper side of the connecting block 31. The two ends of the connecting pipe 51 are respectively fixed inside the two adjacent air inlet pipes 34. An opening is opened on the circumferential surface of the connecting pipe 51, and a fixing pipe 52 is fixed inside the opening. The connecting component 6 includes a connecting hose 61 and a one-way valve 62. The two fixing pipes 52 are connected through the connecting hose 61. Two corresponding air guide components 52 are mounted on the circumferential surface of the connecting hose 61. The corresponding one-way valve 62, the air injection assembly 7 includes an air pump 71 and an air outlet pipe 72, the air pump 71 is installed on the front side of the return bead 2, the air outlet pipe 72 is fixed inside the air outlet hole of the air pump 71, the upper end of the air outlet pipe 72 is fixed on the circumferential surface of the connecting hose 61, the air outlet pipe 72 is located between the two one-way valves 62, the air outlet pipe 72 is connected to the connecting hose 61, the input end of the air pump 71 is electrically connected to the output end of the external control switch group, the compressed air is injected into the interior of the connecting hose 61 by setting the air injection assembly 7, the compressed air is injected into the interior of the two fixed pipes 52 by setting the connecting assembly 6, and the compressed air is injected into the interior of the four air inlet pipes 34 by setting the air guide assembly 5;

[0023] Air blowing assembly 3: includes connecting block 31, air guide hole 32, inclined tube 33, and air inlet tube 34. Two corresponding connecting blocks 31 are fixed on the left and right sides of the bead returner 2. Two corresponding air guide holes 32 are opened on the left and right sides inside the connecting block 31. An inclined tube 33 is fixed to the lower end of the air guide hole 32, and an air inlet tube 34 is fixed to the upper end of the air guide hole 32. A cleaning assembly 4 is installed in the middle of the connecting block 31. Two air guide assemblies 5 are respectively connected to the four left and right air inlet tubes 34. The cleaning assembly 4 includes a fixing frame 41, an electric telescopic rod 42, and a scraper. The plate 43 and the connecting block 31 have an opening in the middle. A scraper 43 is slidably connected inside the opening. The lower side of the scraper 43 is located in the threaded groove of the lead screw 1. A fixing frame 41 is fixed on the upper side of the connecting block 31. An electric telescopic rod 42 is installed on the upper side of the fixing frame 41. The telescopic arm of the electric telescopic rod 42 is fixed on the upper side of the scraper 43. The input end of the electric telescopic rod 42 is electrically connected to the output end of an external control switch group. The lead screw 1 is cleaned by setting the cleaning component 4, and the front and rear sides of the two scrapers 41 are cleaned by setting the two connecting blocks 31.

[0024] Among them: two corresponding support frames 8 are fixed on the front side of the ball return device 2, and support tubes 9 are fixed on the upper side of the support frame 8. The two support tubes 9 are sleeved on the circumferential surface of the connecting hose 61, and the connecting hose 61 is supported by the two support tubes 9.

[0025] The working principle of the end-plug type large-lead miniature ball screw pair provided by this utility model is as follows: During the movement of the ball return device 2 along the screw 1, two scrapers 43 move along the thread groove of the screw 2. During this movement, dust inside the thread groove of the screw 2 is cleaned. After cleaning, oil stains caused by dust in the thread groove of the screw 2 are prevented from affecting the movement of the ball return device 2. After the two scrapers 43 have cleaned the thread groove of the screw 2, the two electric telescopic rods 42 are retracted. The retraction of the two electric telescopic rods 42 causes the two… The scraper 43 moves downward, at which point the two connecting blocks 31 clean the front and rear sides of the two scrapers 43. After cleaning, the air pump 71 is started to inject compressed air into the interior of the two connecting pipes 51 through the air outlet pipe 72. The gas entering the interior of the two connecting pipes 51 is blown into the interior of the four air guide holes 32, and then sprayed onto the oil stains adhering to the front and rear sides of the two connecting blocks 31 through the four inclined pipes 33. In this way, the two connecting blocks 31 can be cleaned, which is convenient for cleaning the two scrapers 43 later.

[0026] It is worth noting that the external control switch group disclosed in the above embodiments is equipped with buttons corresponding one-to-one with the electric telescopic rod 42 and the air pump 71. The electric telescopic rod 42 can be a TGC-A high-thrust electric telescopic rod, and the air pump 71 can be a 12V small air pump.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, 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 plug-type large-lead miniature ball screw pair, characterized in that: Includes a lead screw (1) and an air blowing assembly (3); Lead screw (1): A ball return device (2) is installed on the surface. An air injection component (7) is installed on the front side of the ball return device (2). A connecting component (6) is installed on the upper end of the air injection component (7). Two corresponding air guide components (5) are installed on the left and right ends of the connecting component (6). Air blowing assembly (3): includes connecting block (31), air guide hole (32), inclined tube (33) and air inlet pipe (34). Two corresponding connecting blocks (31) are fixed on the left and right sides of the bead returner (2). Two corresponding air guide holes (32) are opened on the left and right sides inside the connecting block (31). An inclined tube (33) is fixed at the lower end inside the air guide hole (32). An air inlet pipe (34) is fixed at the upper end inside the air guide hole (32). A cleaning assembly (4) is installed in the middle of the connecting block (31). Two air guide assemblies (5) are respectively connected to the four air inlet pipes (34) on the left and right.

2. The end-plug type large-lead miniature ball screw pair according to claim 1, characterized in that: The cleaning assembly (4) includes a fixing frame (41), an electric telescopic rod (42), and a scraper (43). The connecting block (31) has an opening in the middle, and the scraper (43) is slidably connected inside the opening. The lower side of the scraper (43) is located in the threaded groove of the lead screw (1). The fixing frame (41) is fixed on the upper side of the connecting block (31), and the electric telescopic rod (42) is installed on the upper side of the fixing frame (41). The telescopic arm of the electric telescopic rod (42) is fixed on the upper side of the scraper (43), and the input end of the electric telescopic rod (42) is electrically connected to the output end of an external control switch group.

3. The end-plug type large-lead miniature ball screw pair according to claim 1, characterized in that: The air guiding assembly (5) includes a connecting pipe (51) and a fixing pipe (52). The connecting pipe (51) is provided on the upper side of the connecting block (31). The two ends of the connecting pipe (51) are respectively fixed inside the two adjacent air inlet pipes (34). An opening is provided on the circumferential surface of the connecting pipe (51), and the fixing pipe (52) is fixed inside the opening.

4. The end-plug type large-lead miniature ball screw pair according to claim 3, characterized in that: The connection assembly (6) includes a connecting hose (61) and a one-way valve (62). Two fixed pipes (52) are connected through the connecting hose (61), and two corresponding one-way valves (62) are installed on the circumferential surface of the connecting hose (61).

5. The end-plug type large-lead miniature ball screw pair according to claim 4, characterized in that: The air injection assembly (7) includes an air pump (71) and an air outlet pipe (72). The air pump (71) is installed on the front side of the bead returner (2). The air outlet pipe (72) is fixed inside the air outlet hole of the air pump (71). The upper end of the air outlet pipe (72) is fixed on the circumferential surface of the connecting hose (61). The air outlet pipe (72) is located between two one-way valves (62). The air outlet pipe (72) is connected to the connecting hose (61). The input end of the air pump (71) is electrically connected to the output end of an external control switch group.

6. The end-plug type large-lead miniature ball screw pair according to claim 4, characterized in that: The front side of the bead returner (2) is fixed with two corresponding support frames (8), and the upper side of the support frame (8) is fixed with a support tube (9). The two support tubes (9) are sleeved on the circumferential surface of the connecting hose (61).

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