Long lead screw pitch accumulative error detection device

Abstract

The utility model relates to the field of lead screw pitch detection, and discloses a long lead screw pitch accumulative error detection device which comprises a detection table, the bottom of the detection table is fixedly connected with a supporting assembly, the bottom of the supporting assembly is fixedly connected with a bottom plate, and the top of the bottom plate is fixedly connected with a vertical cabinet. An electricity control box is fixedly connected to the right side of the top of the bottom plate, a display assembly is fixedly connected to the front side of the detection table, a marble base is fixedly connected to the top of the detection table, a variable frequency motor is fixedly connected to the left side of the top of the marble base, and a three-jaw chuck is fixedly connected to the driving end of the variable frequency motor; a long lead screw body is arranged on the right side of the three-jaw chuck, a detection head is fixedly connected to the bottom of the sliding block, and a limiting block is fixedly connected to the left side of the top of the marble base. According to the utility model, the limiting block is matched with the rolling rod to support and push the long lead screw body, so that the accumulated error and torsion of the precise transmission long lead screw can be accurately and efficiently detected.

Description

Technical Field

[0001] The utility model relates to the field of lead screw pitch detection, in particular to a device for detecting cumulative error of a long lead screw pitch. Background Art

[0002] As a common precision transmission component, lead screws are widely used in aerospace, medical, intelligent machinery, CNC machine tools, photovoltaics and other fields. They are used to achieve high-precision linear motion and positioning, so their accuracy and reliability are extremely high. However, there is a problem of cumulative pitch error in the use of lead screws, which may lead to adverse effects such as reduced system accuracy, unstable motion and increased wear of components. The cumulative pitch error refers to the gradual accumulation of small errors in the lead screw during processing, installation or operation during rotational transmission, which ultimately affects the precision and stability of the system.

[0003] After searching, the long lead screw pitch cumulative error detection device with announcement number CN202836540U includes a light rod, a static contact and a supporting device, the static contact is suspended on the left side of the light rod, the supporting device is suspended in the middle of the light rod, the long lead screw pitch cumulative error detection device also includes a moving contact detection device, and the moving contact detection device is arranged on the right side of the light rod. The utility model has the beneficial effects of high reliability and high efficiency in detecting the long lead screw pitch cumulative error.

[0004] The above patent mentioned that "it includes a light rod, a static contact and a supporting device, the static contact is suspended on the left side of the light rod, the supporting device is suspended in the middle of the light rod, the long lead screw pitch cumulative error detection device also includes a moving contact detection device, and the moving contact detection device is arranged on the right side of the light rod. The utility model has the beneficial effects of high reliability and high efficiency in detecting the long lead screw pitch cumulative error". However, in the specific use process, the long lead screw cannot be detected quickly and accurately. Therefore, in view of the above problems, a long lead screw pitch cumulative error detection device is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a long lead screw pitch cumulative error detection device, aiming to improve the problems in the prior art that the long lead screw cannot be detected quickly and accurately and cannot be supported and limited during detection.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a long lead screw pitch cumulative error detection device, comprising a detection platform, the bottom of the detection platform is fixedly connected to a support assembly, the bottom of the support assembly is fixedly connected to a bottom plate, the top of the bottom plate is fixedly connected to a cabinet, the top right side of the bottom plate is fixedly connected to an electrical control box, the front side of the detection platform is fixedly connected to a display assembly, the top of the detection platform is fixedly connected to a marble base, the top left side of the marble base is fixedly connected to a frequency conversion motor, the driving end of the frequency conversion motor is fixedly connected to a three-jaw chuck, a long lead screw body is arranged on the right side of the three-jaw chuck, the top of the marble base is fixedly connected to a guide rail, the front side of the guide rail is provided with a slider, the bottom of the slider is fixedly connected to a detection head, the top of the marble base is fixedly connected to an optical ruler, the top left side of the marble base is fixedly connected to a limit block, and the top of the limit block is rotatably connected to two rolling rods.

[0007] Furthermore, the support assembly includes four support rods, and the tops of the four support rods are fixedly connected to the four corners of the bottom of the detection platform.

[0008] Furthermore, the display assembly includes a display screen and a test screen, the rear side of the display screen is fixedly connected to the front side of the test bench, and the rear side of the test screen is fixedly connected to the front side of the test bench.

[0009] Furthermore, a mounting plate is fixedly connected to the top right side of the marble base, a placement groove is provided inside the mounting plate, sliding rods are slidably connected to the front and rear sides of the mounting plate, a spring is sleeved on the outside of the sliding rods, clamping blocks are fixedly connected to the adjacent sides of the two sliding rods, limiting rods are fixedly connected to the distant sides of the two clamping blocks, top plates are fixedly connected to the distant sides of the two sliding rods, a cylinder is fixedly connected to the outside of the guide rail, a connecting rod is fixedly connected to the driving end of the cylinder, and a connecting block is fixedly connected to the bottom of the connecting rod.

[0010] Furthermore, the top of the rolling rod contacts the bottom of the lead screw body, and the outside of the lead screw body contacts the bottom of the detection head.

[0011] Furthermore, one side of the spring is fixedly connected to the outside of the clamping block, and the other side of the spring is fixedly connected to the inside of the mounting plate.

[0012] Furthermore, the outer portion of the limiting rod is slidably connected to the inner portion of the mounting plate, and the bottom portion of the clamping block is slidably connected to the inner portion of the mounting plate.

[0013] Furthermore, the four bottom corners of the bottom plate are fixedly connected with support columns, and the bottoms of the support columns are fixedly connected with protective pads.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, by using the testing platform, support rod, bottom plate, control box, marble base, frequency conversion motor, three-jaw chuck, lead screw body, slider, limit block, rolling rod and other structures in coordination, the lead screw body can be supported and pushed by the limit block and the rolling rod, and the accumulated error of the precision transmission lead screw, as well as the gap and torque after assembly can be accurately and efficiently detected.

[0016] 2. In the utility model, by using the installation plate, placement groove, slide rod, spring, clamp block, limit rod, top plate and other structures in coordination, the clamp block and the spring can support and limit the long lead screw body during detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a long lead screw pitch cumulative error detection device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the clamping block structure of a long lead screw pitch cumulative error detection device proposed by the utility model;

[0019] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 1 Enlarged view of point B in the middle.

[0021] Legend:

[0022] 1. Test table; 2. Support rod; 3. Bottom plate; 4. Cabinet; 5. Electric control box; 6. Display screen; 7. Test screen; 8. Marble base; 9. Frequency conversion motor; 10. Three-jaw chuck; 11. Lead screw body; 12. Guide rail; 13. Slider; 14. Test head; 15. Optical ruler; 16. Limit block; 17. Rolling rod; 18. Mounting plate; 19. Placement slot; 20. Sliding rod; 21. Spring; 22. Clamp block; 23. Limit rod; 24. Top plate; 25. Cylinder; 26. Connecting rod; 27. Connecting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1As shown, an embodiment of the utility model is provided: a long lead screw pitch cumulative error detection device, including a detection table 1, the detection table 1 is used to support and fix the device, the bottom of the detection table 1 is fixedly connected with a support assembly, the support assembly includes four support rods 2, the support rods 2 are used to push the detection table 1, the tops of the four support rods 2 are fixedly connected to the four corners of the bottom of the detection table 1, the bottom of the support assembly is fixedly connected with a bottom plate 3, the bottom plate 3 is used to cooperate with the support rods 2 to push the detection table 1, the top of the bottom plate 3 is fixedly connected with a cabinet 4, the cabinet 4 is used to store the test device, the top right side of the bottom plate 3 is fixedly connected with an electric control box 5, the electric control box 5 is composed of a transformer, a frequency conversion server, a switch, and an integrated circuit;

[0025] The front side of the testing platform 1 is fixedly connected to a display assembly, and the display assembly includes a display screen 6 and a test screen 7. The display screen 6 and the test screen 7 are used to observe the test results. The rear side of the display screen 6 is fixedly connected to the front side of the testing platform 1, and the rear side of the test screen 7 is fixedly connected to the front side of the testing platform 1. The top of the testing platform 1 is fixedly connected to a marble base 8, and the marble base 8 is used to fix a variable frequency motor 9. The left side of the top of the marble base 8 is fixedly connected to a variable frequency motor 9, and the variable frequency motor 9 is used to drive a three-jaw chuck 10 to limit and fix the long screw body 11. The driving end of the variable frequency motor 9 is fixedly connected to the three-jaw chuck 10, and the three-jaw chuck 10 is used to clamp the long screw body 11.

[0026] Reference Figure 4 As shown, a long lead screw body 11 is arranged on the right side of the three-jaw chuck 10, and a guide rail 12 is fixedly connected to the top of the marble base 8, and the guide rail 12 is used to allow a slider 13 to slide. A slider 13 is arranged on the front side of the guide rail 12, and the slider 13 is used to fix a detection head 14. The bottom of the slider 13 is fixedly connected to a detection head 14, and the detection head 14 is used to detect the pitch of the long lead screw body 11.

[0027] Reference Figure 1 and Figure 3 As shown, an optical ruler 15 is fixedly connected to the top of the marble base 8, and the optical ruler 15 is used to measure the length or displacement. A limit block 16 is fixedly connected to the left side of the top of the marble base 8, and the limit block 16 is used to limit the rolling rod 17. The top of the limit block 16 is rotatably connected to two rolling rods 17, and the rolling rods 17 are used to push the long lead screw body 11. The top of the rolling rod 17 contacts the bottom of the long lead screw body 11, and the outside of the long lead screw body 11 contacts the bottom of the detection head 14.

[0028] Reference Figure 2 and Figure 4As shown, a mounting plate 18 is fixedly connected to the top right side of the marble base 8, and the mounting plate 18 is used to open a placement groove 19. A placement groove 19 is opened inside the mounting plate 18, and the placement groove 19 is used to place the long lead screw body 11. Slide rods 20 are slidably connected to the front and rear sides of the mounting plate 18, and the slide rod 20 is used to prevent the spring 21 from deforming. A spring 21 is sleeved on the outside of the slide rod 20, and the spring 21 is used to push the clamping block 22. One side of the spring 21 is fixedly connected to the outside of the clamping block 22, and the other side of the spring 21 is fixedly connected to the inside of the mounting plate 18. The adjacent sides of the two slide rods 20 are fixedly connected to the clamping block 22, and the distant sides of the two clamping blocks 22 are fixedly connected to the limit rod 23. The limiting rod 23 is used to limit the clamping block 22. The outside of the limiting rod 23 is slidably connected to the inside of the mounting plate 18. The bottom of the clamping block 22 is slidably connected to the inside of the mounting plate 18. The far sides of the two sliding rods 20 are fixedly connected with top plates 24. The outside of the guide rail 12 is fixedly connected with a cylinder 25. The cylinder 25 is used to connect and operate the connecting rod 26. The driving end of the cylinder 25 is fixedly connected with a connecting rod 26. The connecting rod 26 is used to connect the connecting block 27. The bottom of the connecting rod 26 is fixedly connected with a connecting block 27. The top plate 24 is used to prevent the sliding rod 20 from sliding out of the inside of the mounting plate 18. The bottom four corners of the bottom of the bottom plate 3 are fixedly connected with support columns, and the bottom of the support columns are fixedly connected with protective pads.

[0029] Working principle: When the staff performs error detection on the lead screw body 11, they first turn on the power switch of the equipment, and then check whether the display of the display screen 6 and the test screen 7 is normal, and then pass the lead screw body 11 through the placement slot 19 and the bottom of the clamping block 22, and then clamp one side of the lead screw body 11 through the three-jaw chuck 10 on the top of the frequency conversion motor 9, and then limit the lead screw body 11 through the limit block 16 and the rolling rod 17 on the top, open the computer control program, press the run key, and then use the guide rail 12 to cooperate with the slider 13 and the detection head 14 to detect the cumulative pitch error of the lead screw body 11, and then when detecting the lead screw body 11, the spring 21 cooperates with the slide bar 20 through the clamping block 22 to limit the two sides of the lead screw body 11, so that the lead screw body 11 can be limited during detection to prevent the lead screw body 11 from falling off and deviating, etc., and finally observe the final data on the display screen 6, as well as the error between the actual value and the standard value.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting cumulative pitch errors of a lead screw, comprising a detection platform (1), characterized in that: The bottom of the test bench (1) is fixedly connected to a support assembly, the bottom of the support assembly is fixedly connected to a bottom plate (3), the top of the bottom plate (3) is fixedly connected to a cabinet (4), the top right side of the bottom plate (3) is fixedly connected to an electric control box (5), the front side of the test bench (1) is fixedly connected to a display assembly, the top of the test bench (1) is fixedly connected to a marble base (8), the top left side of the marble base (8) is fixedly connected to a variable frequency motor (9), and the driving end of the variable frequency motor (9) is fixedly connected to a three-jaw chuck (10), a long lead screw body (11) is arranged on the right side of the three-jaw chuck (10), a guide rail (12) is fixedly connected to the top of the marble base (8), a slider (13) is arranged on the front side of the guide rail (12), a detection head (14) is fixedly connected to the bottom of the slider (13), an optical ruler (15) is fixedly connected to the top of the marble base (8), a limit block (16) is fixedly connected to the left side of the top of the marble base (8), and the top of the limit block (16) is rotatably connected to two rolling rods (17).

2. A device for detecting cumulative error of lead screw pitch according to claim 1, characterized in that: The support assembly comprises four support rods (2), the tops of the four support rods (2) being fixedly connected to the four corners of the bottom of the detection platform (1).

3. A device for detecting cumulative error of lead screw pitch according to claim 1, characterized in that: The display assembly comprises a display screen (6) and a test screen (7), the rear side of the display screen (6) being fixedly connected to the front side of the test bench (1), and the rear side of the test screen (7) being fixedly connected to the front side of the test bench (1).

4. A device for detecting cumulative error of lead screw pitch according to claim 1, characterized in that: The top right side of the marble base (8) is fixedly connected with a mounting plate (18), a placement groove (19) is provided inside the mounting plate (18), the front and rear sides of the mounting plate (18) are slidably connected with slide bars (20), the outer side of the slide bars (20) is sleeved with a spring (21), the adjacent sides of the two slide bars (20) are fixedly connected with a clamping block (22), the distant sides of the two clamping blocks (22) are fixedly connected with a limit rod (23), the distant sides of the two slide bars (20) are fixedly connected with a top plate (24), the outer side of the guide rail (12) is fixedly connected with a cylinder (25), the driving end of the cylinder (25) is fixedly connected with a connecting rod (26), and the bottom of the connecting rod (26) is fixedly connected with a connecting block (27).

5. A device for detecting cumulative error of lead screw pitch according to claim 1, characterized in that: The top of the rolling rod (17) contacts the bottom of the long lead screw body (11), and the outside of the long lead screw body (11) contacts the bottom of the detection head (14).

6. A device for detecting cumulative error of lead screw pitch according to claim 4, characterized in that: One side of the spring (21) is fixedly connected to the outside of the clamping block (22), and the other side of the spring (21) is fixedly connected to the inside of the mounting plate (18).

7. A device for detecting cumulative error of lead screw pitch according to claim 4, characterized in that: The outside of the limiting rod (23) is slidably connected to the inside of the mounting plate (18), and the bottom of the clamping block (22) is slidably connected to the inside of the mounting plate (18).

8. A device for detecting cumulative error of lead screw pitch according to claim 1, characterized in that: The four corners of the bottom of the bottom plate (3) are fixedly connected to support columns, and the bottoms of the support columns are fixedly connected to protective pads.

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