Lead screw sliding rail mechanism

Abstract

The utility model relates to the field of lead screw sliding rail transmission, and discloses a lead screw sliding rail mechanism which comprises a base, a supporting plate is fixedly connected to the top of the base, a lead screw is rotationally connected to the middle of the supporting plate, a servo motor is fixedly connected to the outer side of the supporting plate, one end of the lead screw is fixedly connected to the output end of the servo motor, and the other end of the lead screw is fixedly connected to the output end of the servo motor. A threaded block is in threaded connection with the periphery of the lead screw, a movable plate is fixedly connected to the top of the threaded block, a containing box is installed at the top of the movable plate, a limiting assembly is installed between the movable plate and the base, a filtering assembly is installed in the middle of the base, and a centrifugal pump is fixedly connected to the inner bottom of the base. According to the utility model, firstly, the centrifugal pump is driven to input lubricating oil in the base into the oil conveying pipe, and the lubricating oil is sprayed on the lead screw through the spray head, so that the threaded block is smoother in the moving process, the abrasion between the lead screw and the threaded block is reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of screw rod slide rail transmission, especially a screw rod slide rail mechanism. BACKGROUND

[0002] In the laboratory, production line or other environments requiring high-precision liquid sampling, it is usually necessary to use a conveying mechanism to deliver stored liquid to a designated location for rapid sampling in order to facilitate detection of liquid purity and quality, thereby ensuring the accuracy of production or experiments, and for this reason, the use of screw slide rails is becoming more and more frequent.

[0003] When the existing screw rod slide rail transmission is used for sampling, the sample bottle is usually placed in a storage container on the sliding block, and the screw rod is driven by a motor, so that the sliding block on the outer periphery of the screw rod can drive the sample bottle to move to a designated position, so that the sampling device can extend the dropper into the sample bottle for specified sampling detection. However, in actual practice, as the sliding block moves for a long time, wear will occur between the sliding block and the screw rod, thereby affecting the stability of the sample during movement. Therefore, a screw rod slide rail mechanism is proposed to solve the above problems. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a screw rod slide rail mechanism, which aims to improve the problem that the screw rod and the sliding block are prone to wear and affect stability in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A screw rod slide rail mechanism, comprising a base, a support plate fixedly connected to the top of the base, a screw rod rotatably connected to the middle of the support plate, a servo motor fixedly connected to the outer side of the support plate, one end of the screw rod fixedly connected to the output end of the servo motor, a threaded block threadedly connected to the outer periphery of the screw rod, an activity plate fixedly connected to the top of the threaded block, a placing box mounted on the top of the activity plate, a limiting assembly installed between the activity plate and the base, a filtering assembly installed in the middle of the base, a centrifugal pump fixedly connected to the inner bottom of the base, an oil delivery pipe fixedly connected to the middle of the base, the output end of the centrifugal pump connected to the oil delivery pipe, and a spray head installed on the outer side of the oil delivery pipe.

[0007] The filtering assembly comprises a drainage groove, which is formed in the middle of the base, and a filter screen fixedly connected to the middle of the drainage groove.

[0008] Further description of the above technical scheme:

[0009] The left and right sides of the threaded block are fixedly connected with slide rods, the other ends of the slide rods are fixedly connected with stop blocks, the outer periphery of the slide rod is provided with an elastic assembly, the top of the movable plate is slidably connected with a clamping plate, and the placing box is clamped in the middle part of the clamping plate.

[0010] As a further description of the above technical solution:

[0011] The limiting assembly comprises a clamping block, the clamping block is fixedly connected to the bottom of the movable plate, a limiting groove is formed in the middle part of the clamping block, a limiting block is fixedly connected to the top of the base, and the limiting block is slidably connected to the middle part of the limiting groove.

[0012] As a further description of the above technical solution:

[0013] The elastic assembly comprises a compression spring, the compression spring is sleeved on the outer periphery of the slide rod, a sliding block is slidably connected to the outer periphery of the slide rod, a connecting rod is fixedly connected to the outer side of the sliding block, and the other end of the connecting rod is fixedly connected to the bottom of the clamping plate.

[0014] As a further description of the above technical solution:

[0015] The outer side of the clamping plate is fixedly connected with a pull rod.

[0016] As a further description of the above technical solution:

[0017] The lead screw is located directly above the drainage groove.

[0018] As a further description of the above technical solution:

[0019] The drainage groove is a trapezoidal shape with a wide upper part and a narrow lower part.

[0020] As a further description of the above technical solution:

[0021] The outer side of the base is provided with a plurality of trigger sensors.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1、in the utility model, first drive centrifugal pump and input lubricating oil in the inside of base in oil pipe, and lubricating oil is sprayed on lead screw through spray head, so that threaded block is more smooth in moving process, reduce the abrasion between lead screw and threaded block, improve the service life.

[0024] 2. In the utility model, first pull the clamping plate to drive the connecting rod, the connecting rod drives the sliding block to slide on the outer periphery of the sliding rod and extrude the compression spring, so that the placing box can be quickly taken out from the top of the movable plate, after the clamping plate is loosened, the clamping plate will reset under the push of the compression spring, so that the placing box can be quickly fixed on the top of the movable plate, and then the placing box can be quickly installed and disassembled for cleaning and disinfection, and the accuracy in the sampling process is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional schematic view of a lead screw sliding rail mechanism is provided for the utility model;

[0026] Figure 2 A structure schematic view of a lead screw of a lead screw sliding rail mechanism is provided for the utility model;

[0027] Figure 3 A structure schematic view of a filter screen of a lead screw sliding rail mechanism is provided for the utility model;

[0028] Figure 4 A structure schematic view of a clamping block of a lead screw sliding rail mechanism is provided for the utility model;

[0029] Figure 5 A structure schematic view of a compression spring of a lead screw sliding rail mechanism is provided for the utility model.

[0030] LEGEND:

[0031] 1, base; 2, support plate; 3, servo motor; 4, lead screw; 5, limiting block; 6, clamping block; 7, threaded block; 8, movable plate; 9, clamping plate; 10, oil delivery pipe; 11, spray head; 12, filter screen; 13, trigger sensor; 14, centrifugal pump; 15, placing box; 16, limiting groove; 17, pull rod; 18, connecting rod; 19, sliding rod; 20, sliding block; 21, compression spring; 22, blocking block; 23, drainage groove. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] REFERENCE Figure 1 AND Figure 2The utility model provides an embodiment: a screw slide rail mechanism, the top fixed connection of base 1 has support plate 2, the middle part rotationally connected with lead screw 4 has in support plate 2, the outside fixed connection of support plate 2 has servo motor 3, the output end of servo motor 3 is fixedly connected in one end of lead screw 4, the periphery of lead screw 4 is connected with threaded block 7, the top fixed connection of threaded block 7 has movable plate 8, the top installation of movable plate 8 has placing box 15, and the limit component between movable plate 8 and base 1 is installed, and the limit component includes clamping block 6, and clamping block 6 is fixedly connected at the bottom of movable plate 8, and the middle part of clamping block 6 is equipped with limit slot 16, and the top fixed connection of base 1 has limit block 5, and limit block 5 is slidingly connected in the middle part of limit slot 16. First drive servo motor 3 to drive lead screw 4 to rotate in the middle part of support plate 2, so that the threaded block 7 of the periphery of lead screw 4 can drive movable plate 8 to slide on the top of base 1, while movable plate 8 moves and will drive clamping block 6 to move, and under the action of limit slot 16 and limit block 5, clamping block 6 can prevent movable plate 8 from rotating with threaded block 7, so that movable plate 8 can move smoothly.

[0034] Referring to Figures 1-3 The middle part of base 1 is provided with a filtering assembly, the filtering assembly comprises a drainage groove 23, the drainage groove 23 is arranged in the middle part of the base 1, the middle part of the drainage groove 23 is fixedly connected with a filter screen 12, the inner bottom of the base 1 is fixedly connected with a centrifugal pump 14, the middle part of the base 1 is fixedly connected with an oil delivery pipe 10, the output end of the centrifugal pump 14 is connected with the oil delivery pipe 10, the outer side of the oil delivery pipe 10 is provided with a spray head 11, the lead screw 4 is located directly above the drainage groove 23, the drainage groove 23 is a trapezoidal shape with a wide upper part and a narrow lower part, and a plurality of trigger sensors 13 are installed on the outer side of the base 1. While moving, the threaded block 7 drives the centrifugal pump 14 to input the lubricating oil in the base 1 into the oil delivery pipe 10, and sprays the lubricating oil on the lead screw 4 through the spray head 11, so that the threaded block 7 can smear the lubricating oil on the periphery of the lead screw 4 to form a lubricating film when moving, thereby reducing the wear between the lead screw 4 and the threaded block 7, prolonging the service life of the lead screw 4 and the threaded block 7, and making the movable plate 8 move more stably. After the lubricating oil is sprayed on the lead screw 4, it will drip into the drainage groove 23, and the dripping lubricating oil can be collected through the action of the trapezoidal drainage groove 23, so that the lubricating oil can be recycled. Under the action of the filter screen 12, the dripping lubricating oil can be filtered, dust and impurities are prevented from falling into the inside of the base 1, thereby ensuring the quality of the lubricating oil. After the sample bottle moves to the specified uncapping position and sampling position under the action of the trigger sensor 13, the servo motor 3 can stop rotating, so that the sample bottle can be stopped at the specified position.

[0035] Referring to Figure 4 And Figure 5The left and right sides of the threaded block 7 are fixedly connected with slide rods 19, the other ends of the slide rods 19 are fixedly connected with stop blocks 22, the outer periphery of the slide rod 19 is provided with an elastic assembly, the top of the movable plate 8 is slidably connected with a clamping plate 9, the placing box 15 is clamped in the middle of the clamping plate 9, the elastic assembly comprises compression springs 21, the compression springs 21 are sleeved on the outer periphery of the slide rod 19, the outer periphery of the slide rod 19 is slidably connected with slide blocks 20, the outer side of the slide block 20 is fixedly connected with connecting rods 18, the other end of the connecting rod 18 is fixedly connected to the bottom of the clamping plate 9, and the outer side of the clamping plate 9 is fixedly connected with pull rods 17. By pulling the two pull rods 17 to move reversely, the two clamping plates 9 are separated left and right, the placing box 15 is taken out from the middle of the clamping plate 9, and meanwhile the clamping plate 9 moves to drive the connecting rod 18 to move, the connecting rod 18 moves to drive the slide block 20 to slide on the outer periphery of the slide rod 19 and press the compression spring 21. After the pull rod 17 is loosened, the clamping plate 9 is reset under the pushing of the compression spring 21, so that the placing box 15 can be quickly clamped and fixed by the two clamping plates 9, and the placing box 15 can be quickly installed and dismounted for cleaning and disinfection, the accuracy in the sampling process is ensured, and the placing box 15 is prevented from being polluted by sample spillover.

[0036] Working principle: first, drive the servo motor 3 to drive the lead screw 4 to rotate in the middle of the support plate 2, so that the threaded block 7 on the outer periphery of the lead screw 4 can drive the movable plate 8 to slide on the top of the base 1, at the same time, drive the centrifugal pump 14 to input the lubricating oil in the base 1 into the oil delivery pipe 10, and spray the lubricating oil on the lead screw 4 through the nozzle 11, so that the threaded block 7 moves more smoothly in the moving process, reduces the wear between the lead screw 4 and the threaded block 7, and prolongs the service life.

[0037] Pulling the two clamping plates 9 to move reversely, the placing box 15 is taken out from the middle of the clamping plate 9, and meanwhile the clamping plate 9 moves to drive the connecting rod 18 to move, the connecting rod 18 drives the slide block 20 to slide on the outer periphery of the slide rod 19 and press the compression spring 21, after the clamping plate 9 is loosened, the clamping plate 9 is reset under the pushing of the compression spring 21, so as to quickly fix the placing box 15 on the top of the movable plate 8, and the placing box 15 can be quickly installed and dismounted for cleaning and disinfection, and the accuracy in the sampling process is ensured.

[0038] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A lead screw guide mechanism, comprising a base (1), characterized in that: A support plate (2) is fixedly connected to the top of the base (1). A lead screw (4) is rotatably connected to the middle of the support plate (2). A servo motor (3) is fixedly connected to the outer side of the support plate (2). One end of the lead screw (4) is fixedly connected to the output end of the servo motor (3). A threaded block (7) is threadedly connected to the outer circumference of the lead screw (4). A movable plate (8) is fixedly connected to the top of the threaded block (7). A placement box (15) is installed on the top of the movable plate (8). A limit component is installed between the movable plate (8) and the base (1). A filter component is installed in the middle of the base (1). A centrifugal pump (14) is fixedly connected to the inner bottom of the base (1). An oil delivery pipe (10) is fixedly connected to the middle of the base (1). The output end of the centrifugal pump (14) is connected to the oil delivery pipe (10). A nozzle (11) is installed on the outer side of the oil delivery pipe (10). The filter assembly includes a flow channel (23), which is located in the middle of the base (1), and a filter screen (12) is fixedly connected to the middle of the flow channel (23).

2. The lead screw and slide rail mechanism according to claim 1, characterized in that: The threaded block (7) is fixedly connected to slide rods (19) on both sides. The other end of the slide rod (19) is fixedly connected to a stop block (22). An elastic component is installed on the outer periphery of the slide rod (19). A clamping plate (9) is slidably connected to the top of the movable plate (8). The placement box (15) is snapped into the middle of the clamping plate (9).

3. The lead screw and slide rail mechanism according to claim 1, characterized in that: The limiting component includes a locking block (6), which is fixedly connected to the bottom of the movable plate (8). A limiting groove (16) is opened in the middle of the locking block (6). A limiting block (5) is fixedly connected to the top of the base (1). The limiting block (5) is slidably connected to the middle of the limiting groove (16).

4. The lead screw and slide rail mechanism according to claim 2, characterized in that: The elastic component includes a compression spring (21), which is sleeved on the outer periphery of the slide rod (19). A slider (20) is slidably connected to the outer periphery of the slide rod (19). A connecting rod (18) is fixedly connected to the outer side of the slider (20). The other end of the connecting rod (18) is fixedly connected to the bottom of the clamping plate (9).

5. The lead screw guide mechanism according to claim 2, characterized in that: A pull rod (17) is fixedly connected to the outside of the clamp (9).

6. The lead screw and slide rail mechanism according to claim 1, characterized in that: The lead screw (4) is located directly above the flow channel (23).

7. The lead screw guide mechanism according to claim 1, characterized in that: The drainage channel (23) is a trapezoid with a wider top and a narrower bottom.

8. The lead screw guide mechanism according to claim 1, characterized in that: Multiple trigger sensors (13) are mounted on the outside of the base (1).

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