Lead screw running-in machine

Abstract

The utility model relates to the technical field of lead screw detection, in particular to a lead screw running-in machine. Comprising a platform, a first motor is arranged at the bottom of the platform, a bidirectional lead screw is arranged at the output end of the first motor, lead screw sleeves are in threaded connection with the two ends of the bidirectional lead screw correspondingly, limiting sliding blocks are arranged at the tops of the two lead screw sleeves correspondingly, and a first right-angle plate and a second right-angle plate are arranged at the tops of the two limiting sliding blocks correspondingly; an output shaft of the second motor penetrates through the first right-angle plate, the second right-angle plate is connected with a rotating rod through a second bearing, the output shaft of the second motor and one end of the rotating rod are each provided with a fixing base, the two fixing bases are each provided with a plurality of clamping assemblies, a to-be-detected lead screw and a detection nut are arranged between the two fixing bases, and the fixing bases are connected with the to-be-detected lead screw through the clamping assemblies. A U-shaped plate is arranged on the platform, telescopic rods are arranged on the two side walls of the U-shaped plate, and clamping pressing blocks are arranged on movable shafts of the telescopic rods. The lead screw running-in machine provided by the utility model can be suitable for detecting lead screws and nuts of different specifications, and has strong applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rod detection, in particular to a screw rod running-in machine. Background Art

[0002] The screw is the most commonly used transmission element in tool machinery and precision machinery. Its main function is to convert rotational motion into linear motion, or to convert torque into axial repetitive force. It also has the characteristics of high precision, reversibility and high efficiency.

[0003] Most screw rods are used together with nuts. Therefore, in order to ensure the smoothness of the screw rod and the nut before installation and use, it is necessary to detect whether the parameters of the screw rod and the nut meet the requirements during operation. The screw rod and the nut must be run-in for a period of time. At present, fixed mounting holes are mostly used to clamp the screw rod and the nut during the running-in process of the screw rod and the nut. However, the specifications of the screw rod and the nut are various, and only the screw rod and the nut that meet the specifications of the mounting hole can be clamped, which makes it impossible to meet the screw rods and nuts of other different specifications, which has great limitations. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and provides a screw running-in machine which can be used to detect screws and nuts of different specifications and has strong applicability.

[0005] The technical solution provided by the utility model is: a screw running machine, comprising a platform, a first motor is fixedly connected to the bottom of the platform, a bidirectional screw is provided at the output end of the first motor, both ends of the bidirectional screw are threadedly connected with screw sleeves, the tops of the two screw sleeves are fixedly connected with limit sliders that pass through the platform, the tops of the two limit sliders are respectively fixedly connected with a first right-angle plate and a second right-angle plate, the first right-angle plate is fixedly connected with a second motor, the output shaft of the second motor passes through the first right-angle plate and the output shaft of the second motor is connected to the first right-angle plate through a bearing 1, the second right-angle plate is rotatably connected with a rotating rod through a bearing 2, the output shaft of the second motor and one end of the rotating rod are fixedly connected to a fixed seat, a plurality of clamping assemblies are provided on the two fixed seats, a screw to be tested and a detection nut are provided between the two fixed seats, and the fixed seat is connected to the screw to be tested through a clamping assembly, a U-shaped plate is slidably connected to the platform, telescopic rods are provided on both side walls of the U-shaped plate, and the movable shafts of the two telescopic rods are fixedly connected with clamping blocks.

[0006] As a further improvement of the present invention, a plurality of columns are fixedly connected to the bottom of the platform and support blocks are fixedly connected to the bottom ends of the columns. The number of the columns is four and they are distributed in a rectangular shape.

[0007] As a further improvement of the utility model, the bidirectional screw is rotatably connected to one end away from the first motor and is provided with a bearing seat fixedly connected to the platform.

[0008] As a further improvement of the utility model, a limiting sliding groove for the limiting sliding block to pass through and slide is provided on the platform.

[0009] As a further improvement of the utility model, the clamping assembly includes a screw rod penetrating through the side wall of the fixing seat, one end of the screw rod is fixedly connected to a knob, and one end of the screw rod away from the knob is rotatably connected to a clamping block.

[0010] As a further improvement of the utility model, the screw is threadedly connected to the fixing seat and a thread groove for the screw to pass through is provided on the fixing seat, and the screw is rotatably connected to the clamping block via a bearing three.

[0011] As a further improvement of the utility model, two guide slide blocks are fixedly connected to the bottom of the U-shaped plate, and the platform is provided with guide slide grooves for the guide slide blocks to slide.

[0012] As a further improvement of the utility model, the surface of the clamping block and the surface of the clamping pressure block are both provided with a plurality of anti-sliding blocks.

[0013] The advantages of the utility model compared with the prior art are: the utility model can adjust the distance between the two fixing seats by driving the first motor, and clamp and fix the screw rod to be tested by the clamping assembly, so screw rods to be tested of different lengths and thicknesses can be tested, and can meet the needs of screw rods to be tested of different specifications, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a screw running machine of the utility model;

[0015] Figure 2 This is a schematic diagram of a screw running machine of the utility model from another perspective;

[0016] Figure 3 It is a partial cross-sectional view of a screw running-in machine of the utility model;

[0017] Figure 4 The utility model is a screw running machine Figure 3 Schematic diagram of the middle section A;

[0018] Figure 5 This is a partial structural diagram of a screw running machine of the utility model. Figure 1 ;

[0019] Figure 6 This is a partial structural diagram of a screw running machine of the utility model. Figure 2 .

[0020] As shown in the figure: 1. Platform; 2. First motor; 3. Bidirectional lead screw; 4. Lead screw sleeve; 5. Limit slider; 6. First right-angle plate; 7. Second right-angle plate; 8. Second motor; 8.1. Output shaft; 9. Bearing 1; 10. Bearing 2; 11. Rotating rod; 12. Fixed seat; 13. Clamping assembly; 13.1. Screw; 13.2. Knob; 13.3. Clamping block; 13.4. Bearing 3; 14. Lead screw to be tested; 15. Detection nut; 16. U-shaped plate; 17. Telescopic rod; 18. Clamping pressure block; 19. Column; 20. Bearing seat; 21. Limiting slide; 22. Guide slider; 23. Guide slide; 24. Support block. DETAILED DESCRIPTION

[0021] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may change accordingly according to their different locations and different usage states; therefore, these or other directional terms should not be interpreted as restrictive terms.

[0022] The singular forms "a", "said" and "the" used in this specification are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and implementation methods. It should be understood that the implementation methods described herein are only used to explain this application and are not used to limit this application.

[0024] The utility model provides the following Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6The screw running machine shown in the figure comprises a platform 1, a first motor 2 is fixedly connected to the bottom of the platform 1, a bidirectional screw 3 is arranged at the output end of the first motor 2, screw sleeves 4 are threadedly connected to both ends of the bidirectional screw 3, and the tops of the two screw sleeves 4 are fixedly connected to limit sliders 5 that pass through the platform 1, and the tops of the two limit sliders 5 are respectively fixedly connected to the first right-angle plate 6 and the second right-angle plate 7, and the first right-angle plate 6 is fixedly connected to the second motor 8, and the output shaft 8.1 of the second motor 8 passes through the first right-angle plate 6 and the output shaft 8.1 of the second motor 8 is connected to the first right-angle plate 6. The second right-angle plate 7 is connected through bearing one 9, and is rotatably connected to a rotating rod 11 through bearing two 10. The output shaft 8.1 of the second motor 8 and one end of the rotating rod 11 are fixedly connected to a fixed seat 12. A plurality of clamping assemblies 13 are provided on the two fixed seats 12. A screw rod 14 to be tested and a detection nut 15 are provided between the two fixed seats 12, and the fixed seat 12 is connected to the screw rod 14 to be tested through the clamping assembly 13. A U-shaped plate 16 is slidably connected to the platform 1, and telescopic rods 17 are provided on both side walls of the U-shaped plate 16. The movable axes of the two telescopic rods 17 are fixedly connected to clamping blocks 18.

[0025] like Figure 1 and Figure 2 As shown, in the utility model, a plurality of columns 19 are fixedly connected to the bottom of the platform 1 and a support block 24 is fixedly connected to the bottom end of the column 19. The number of the columns 19 is four and they are distributed in a rectangular shape, thereby improving the stability of the platform 1.

[0026] like Figure 2 and Figure 3 As shown, in the utility model, the end of the bidirectional screw rod 3 away from the first motor 2 is rotatably connected to a bearing seat 20 fixedly connected to the platform 1, thereby improving the rotation stability of the bidirectional screw rod 3.

[0027] like Figure 1 As shown, a limiting groove 21 is provided on the platform 1 of the utility model for the limiting slider 5 to pass through and slide. The cooperation between the limiting slider 5 and the limiting groove 21 plays a role of limiting guide, and when the bidirectional screw 3 rotates, the screw sleeve 4 will slide.

[0028] like Figure 4 and Figure 5 As shown, the clamping assembly 13 in the utility model includes a screw 13.1 passing through the side wall of the fixed seat 12, one end of the screw 13.1 is fixedly connected to a knob 13.2, and the end of the screw 13.1 away from the knob 13.2 is rotatably connected to a clamping block 13.3, the screw 13.1 is threadedly connected to the fixed seat 12 and the fixed seat 12 is provided with a thread groove for the screw 13.1 to pass through, the screw 13.1 is rotatably connected to the clamping block 13.3 through a bearing three 13.4, and the clamping assembly 13 can clamp and fix the screw rods 14 to be tested of different thicknesses, and has strong applicability.

[0029] like Figure 1 and Figure 3 As shown, in the present invention, two guide slide blocks 22 are fixedly connected to the bottom of the U-shaped plate 16, and a guide slot 23 for the guide slide blocks 22 to slide is provided on the platform 1, which plays a role of limiting and guiding the U-shaped plate 16, so that the U-shaped plate 16 can slide stably.

[0030] like Figure 5 and Figure 6 As shown, in the present invention, the surface of the clamping block 13.3 and the surface of the clamping pressure block 18 are both provided with a plurality of anti-sliding blocks, which respectively improve the stability of clamping the test screw rod 14 and the test nut 15.

[0031] Working principle: When the utility model is implemented, the first motor 2 is controlled to start, driving the bidirectional screw 3 to rotate. Due to the mutual cooperation between the limit slider 5 and the limit slot 21, a limit guide function is played. When the bidirectional screw 3 rotates, the two screw sleeves 4 will slide toward or away from each other, thereby driving the first right-angle plate 6 and the second right-angle plate 7 to move closer to or farther away from each other through the limit slider 5. Therefore, the distance between the two fixed seats 12 can be adjusted, which is suitable for the use of the screw 14 to be measured with different lengths. Then, the two ends of the screw 14 to be measured are respectively installed in the two fixed seats 12, and the control knob 13.2 is rotated to drive the screw 13.1 to rotate. Since the screw 13.1 is threadedly connected to the fixed seat 12 and the screw 13.1 is connected to the fixed seat 12 through the bearing three 13.4 is rotationally connected with the clamping block 13.3, so when the screw rod 13.1 rotates, it slides to one side, thereby driving the clamping block 13.3 to move to clamp and fix the screw rod 14 to be tested, and then the U-shaped plate 16 is controlled to slide to the detection nut 15, and then the movable axis of the telescopic rod 17 is controlled to extend so that the clamping pressure block 18 clamps the detection nut 15. When the screw rod 14 to be tested is tested, the second motor 8 is controlled to start, and the output shaft 8.1 of the second motor 8 drives the fixed seat 12 to rotate, thereby driving the screw rod 14 to be tested to rotate. Since the clamping pressure block 18 limits the detection nut 15, when the screw rod 14 to be tested rotates, the detection nut 15 will slide to one side, thereby realizing the detection of the screw rod 14 to be tested, which is highly practical.

[0032] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design a structure and implementation method similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A screw running machine, comprising a platform (1), characterized in that: The bottom of the platform (1) is fixedly connected to a first motor (2), the output end of the first motor (2) is provided with a bidirectional screw (3), both ends of the bidirectional screw (3) are threadedly connected to screw sleeves (4), the tops of the two screw sleeves (4) are fixedly connected to limit sliders (5) that pass through the platform (1), the tops of the two limit sliders (5) are respectively fixedly connected to a first right-angle plate (6) and a second right-angle plate (7), the first right-angle plate (6) is fixedly connected to a second motor (8), the output shaft (8.1) of the second motor (8) passes through the first right-angle plate (6), and the output shaft (8.1) of the second motor (8) is connected to the first right-angle plate (6) via a bearing 1 (9), The second right-angle plate (7) is rotatably connected to a rotating rod (11) via a second bearing (10); the output shaft (8.1) of the second motor (8) and one end of the rotating rod (11) are both fixedly connected to a fixed seat (12); a plurality of clamping assemblies (13) are provided on the two fixed seats (12); a screw rod (14) to be tested and a detection nut (15) are provided between the two fixed seats (12); and the fixed seat (12) is connected to the screw rod (14) to be tested via the clamping assembly (13); a U-shaped plate (16) is slidably connected to the platform (1); telescopic rods (17) are provided on both side walls of the U-shaped plate (16); and the movable axes of the two telescopic rods (17) are fixedly connected to clamping blocks (18).

2. A screw running machine according to claim 1, characterized in that: A plurality of columns (19) are fixedly connected to the bottom of the platform (1), and a support block (24) is fixedly connected to the bottom end of the column (19); the number of the columns (19) is four and they are distributed in a rectangular shape.

3. The screw running-in machine according to claim 1, characterized in that: The bidirectional screw rod (3) is rotatably connected to one end away from the first motor (2) and is fixedly connected to a bearing seat (20) connected to the platform (1).

4. The screw running-in machine according to claim 1, characterized in that: The platform (1) is provided with a limiting sliding groove (21) for the limiting sliding block (5) to pass through and slide.

5. The screw running-in machine according to claim 1, characterized in that: The clamping assembly (13) comprises a screw rod (13.1) penetrating through the side wall of the fixing seat (12); one end of the screw rod (13.1) is fixedly connected to a knob (13.2); and one end of the screw rod (13.1) away from the knob (13.2) is rotatably connected to a clamping block (13.3).

6. A screw running-in machine according to claim 5, characterized in that: The screw rod (13.1) is threadedly connected to the fixing seat (12), and the fixing seat (12) is provided with a thread groove for the screw rod (13.1) to pass through. The screw rod (13.1) is rotatably connected to the clamping block (13.3) via a bearing three (13.4).

7. The screw running-in machine according to claim 1, characterized in that: Two guide slide blocks (22) are fixedly connected to the bottom of the U-shaped plate (16), and a guide slide groove (23) for the guide slide blocks (22) to slide is provided on the platform (1).

8. The screw running-in machine according to claim 5, characterized in that: The surface of the clamping block (13.3) and the surface of the clamping pressure block (18) are both provided with a plurality of anti-sliding blocks.

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