Ball screw detection equipment

Abstract

The utility model relates to the technical field of detection equipment, in particular to ball screw detection equipment which comprises a platform, a control screen, a fixing assembly and a detection assembly, the control screen, the fixing assembly and the detection assembly are all connected to the platform, and the control screen controls the fixing assembly and the detection assembly through a program; the fixing assembly comprises a linear guide rail A, a tailstock fixing plate, a center tailstock, a hollow motor base and a hollow motor, the linear guide rail A is fixedly connected to the upper end of the platform, the tailstock fixing plate is slidably connected to the linear guide rail A, and the center tailstock is fixedly connected to the upper end of the tailstock fixing plate. The detection assembly can move in the X direction and the Y direction, the position of the shaft end of the ball screw is determined through the edge finder measuring head, the roughness sensor is used for measuring the roughness of the machined shaft end, the control screen can set a roughness preset value and display a measured value, and a lathe machining tool is prompted to be replaced according to the measured value. And the machining roughness of the numerical control lathe is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a ball screw detection equipment. Background Art

[0002] At present, ball screws have a large number of applications in the machinery manufacturing industry. As a mechanical transmission part, high-precision ball screws have a very wide range of applications, especially in situations where high precision, high speed and heavy load are required. High-precision ball screws are widely used in machine tools, aerospace, medical equipment, automated production lines, robots and other fields. With the continuous development of manufacturing, aerospace, medical and other fields, the application fields of high-precision ball screws will continue to expand and deepen. At present, the processing technology of ball screws is to cut the finished ball screw blank according to the required length, and then anneal the size of the required machining shaft end, and then reduce the surface hardness before machining the shaft end. The shaft end is usually machined on a lathe. The roughness of the machined shaft end surface will be affected by the different lathe performance and tool wear. Usually, the roughness requirement of the ball screw shaft end is Ra0.8~1.6μm. If the shaft end roughness is greater than Ra1.6μm, the friction coefficient will increase, the wear and energy consumption of the bearing on the shaft end single-axis robot fixed seat will also increase, and the vibration of the shaft surface will also increase.

[0003] At present, when processing the shaft end of the ball screw, a lathe is used for processing. Generally, a CNC lathe with good performance can process the roughness of about Ra0.8~1.6μm, and an ordinary lathe can generally reach about Ra1.6~3.2μm. At the same time, the roughness after processing varies according to the degree of wear of the turning tool. The higher the degree of wear of the tool, the greater the processing roughness. According to the mechanical industry standard of the People's Republic of China "JBT3162-2011-Ball Screw Screw Shaft End Type Size", the surface roughness value of the journal position varies according to the accuracy level of the ball screw, ranging from Ra0.4-1.6μm, so it is necessary to test the ball screw after processing to ensure the roughness of the shaft end after processing. The usual method to reduce the roughness is grinding or lathe reprocessing, both of which affect the outer diameter. Usually, the processing is directly carried out according to the specified size. If the roughness is too large at this time, a grinder or re-lathe processing is required, which will cause the finished product size to be smaller than the specified size, resulting in unqualified finished products. If a grinding machine processing allowance is reserved during processing, the working hours will be increased and the production efficiency will be affected. In addition, a chuck jaw is usually used to fix the ball screw at present, but the ball path position and the shaft end of the ball screw need to be carefully protected. If the clamping force is too large when the chuck jaw is used for fixing, it will damage the surface and produce clamping marks. If the clamping force is too small, the ball screw cannot be effectively fixed.

[0004] Therefore, a ball screw detection device is needed to solve the above technical problems. Utility Model Content

[0005] The utility model is to overcome the deficiencies in the prior art and provide a ball screw detection device. The detection component in the utility model can move along the X and Y directions, determine the position of the ball screw shaft end through the edge finder probe, use the roughness sensor to measure the roughness of the processed shaft end, the control screen can set the roughness preset value, display the measured value, and prompt to replace the lathe processing tool according to the measured value to ensure the roughness of the CNC lathe processing. If the required roughness requirement is high, or the detected roughness does not meet the standard, a polishing wheel can be used for polishing.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a ball screw detection device, including a platform, a control screen, a fixed component and a detection component, wherein the control screen, the fixed component and the detection component are all connected to the platform, and the control screen controls the fixed component and the detection component through a program;

[0007] The fixed assembly includes a linear guide rail A, a tailstock fixing plate, a top tailstock, a hollow motor seat and a hollow motor. The linear guide rail A is fixedly connected to the upper end of the platform, the tailstock fixing plate is slidably connected to the linear guide rail A, the top tailstock is fixedly connected to the upper end of the tailstock fixing plate, the hollow motor seat is fixedly connected to the platform, the hollow motor is fixedly connected to the hollow motor seat, and a chuck clamp is drivingly connected to the output end of the hollow motor;

[0008] The detection assembly includes a linear guide rail B, a ball screw nut seat, a single-axis robot fixed seat, a single-axis robot, a motor fixed plate, a synchronous pulley and a polishing wheel. The linear guide rail B is fixedly connected to the platform, the single-axis robot fixed seat is slidably connected to the linear guide rail B, the ball screw nut seat is fixedly connected to the bottom of the single-axis robot fixed seat, the single-axis robot is fixedly connected to the single-axis robot fixed seat, and the motor fixed plate is fixedly connected to the single-axis robot;

[0009] The motor fixing plate is fixedly connected with a driving motor, a spindle seat and a motor bracket, the spindle seat is installed with a spindle, a bearing and a bearing locking nut, the polishing wheel is connected to the spindle, and two synchronous pulleys are provided, which are respectively installed on the spindle and the driving motor, and a synchronous belt is installed on the synchronous pulley;

[0010] Two groups of direct drive motors are installed on the motor bracket, one group of direct drive motors is connected to an edge finder probe bracket, and the edge finder probe is installed on the edge finder probe bracket, and the other group of direct drive motors is connected to a roughness sensor bracket, and the roughness sensor is installed on the roughness sensor bracket.

[0011] Furthermore, the chuck jaws are composed of a flexible chuck, a tapered body, a buckle sleeve, an axial positioning flange, a guide sleeve, a fixed wedge, a flange, a spring sleeve, a base plate, a spring and a top screw. The buckle sleeve is used to fix the flexible chuck, and the spring sleeve is used to push the buckle sleeve, the guide sleeve and the spring sleeve to keep the flexible chuck in a normally closed state.

[0012] Furthermore, the top screw is used to control the fixed wedge to replace the flexible chuck, and the flexible chuck is a polyurethane chuck or a rubber chuck.

[0013] Furthermore, the linear guide rail A is installed with a guide rail clamp A, and the linear guide rail B is installed with a guide rail clamp B.

[0014] Furthermore, a polishing wheel guard fixing plate is connected to the spindle seat, a polishing wheel guard is fixedly connected to the polishing wheel guard fixing plate, and a polishing wheel chuck is connected to the spindle, and the polishing wheel chuck is used to fix the polishing wheel.

[0015] Furthermore, a synchronous belt shield is installed outside the synchronous belt pulley.

[0016] Furthermore, buffer limit frames are provided at both left and right ends of the linear guide rail A, and the buffer limit frames and the platform are fixedly connected to each other.

[0017] The advantages of the utility model are: the utility model provides a ball screw detection device, which has the following technical effects:

[0018] 1. The detection component in the utility model can be moved in the X and Y directions, the position of the ball screw shaft end is determined by the edge finder probe, and the roughness of the machining shaft end is measured using the roughness sensor. The control screen can set a roughness preset value and display the measured value. According to the measured value, it prompts to replace the lathe machining tool to ensure the roughness of the CNC lathe machining. If the required roughness requirement is high, or the detected roughness does not meet the standard, a polishing wheel can be used for polishing.

[0019] 2. The utility model can automatically detect the roughness of the ball screw machining shaft end. The fixing component drives the lengthened flexible chuck jaw to rotate through the hollow motor. The lengthened flexible chuck jaw and the top tailstock fix the ball screw. The clamping surface of the flexible chuck is a flexible material and can be embedded in the ball path of the ball screw without damaging the ball path surface. The lengthened structure can increase the clamping area, increase the friction, and reduce the circular runout caused by the flexible material. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the exploded structure of the fixed component in the utility model;

[0023] Figure 3 It is a schematic cross-sectional structure diagram of the chuck frame claws in the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the chuck frame claw in the utility model in a clamped state;

[0025] Figure 5 It is a schematic diagram of the structure of the chuck frame claw in the utility model in the loosened state;

[0026] Figure 6 It is a schematic diagram of the explosion structure of the detection component in the utility model;

[0027] in:

[0028] 1. Platform; 2. Control panel; 3. Fixed components;

[0029] 301. Linear guide rail A; 302. Buffer limit frame; 303. Guide rail clamp A;

[0030] 304, tailstock fixing plate; 305, top tailstock; 306, hollow motor seat;

[0031] 307, hollow motor; 308, chuck jaws; 3081, flexible chuck;

[0032] 3082, tapered body; 3083, buckle pull sleeve; 3084, axial positioning flange;

[0033] 3085, guide sleeve; 3086, fixed wedge; 3087, flange;

[0034] 3088, spring pull sleeve; 3089, bottom plate; 30810, spring;

[0035] 30811, top screw; 4, detection component; 401, linear guide B;

[0036] 402, ball screw nut seat; 403, single-axis robot fixed seat; 404, single-axis robot;

[0037] 405, motor fixing plate; 406, driving motor; 407, spindle seat;

[0038] 408, spindle; 409, bearing; 410, bearing locking nut;

[0039] 411. synchronous pulley; 412. synchronous belt; 413. synchronous belt guard;

[0040] 414, polishing wheel; 415, polishing wheel guard; 416, polishing wheel guard fixing plate;

[0041] 417. Polishing wheel chuck; 418. Edge finder probe; 419. Edge finder probe bracket;

[0042] 420. direct drive motor; 421. motor bracket; 422. roughness sensor;

[0043] 423. Roughness sensor bracket; 424. Guide rail clamp B. DETAILED DESCRIPTION

[0044] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0045] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] Embodiment 1:

[0047] Figure 1 It is a three-dimensional structural schematic diagram of the utility model. Figure 2 This is a schematic diagram of the exploded structure of the fixed component in the utility model. Figure 3 This is a schematic cross-sectional view of the chuck frame claws in the utility model. Figure 4 This is a schematic diagram of the structure of the chuck frame claws in the utility model in a clamped state. Figure 5 This is a schematic diagram of the structure of the chuck frame claw in the utility model when it is in a loosened state. Figure 6 FIG. 1 is a schematic diagram of the explosion structure of the detection component in the utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A ball screw detection device shown includes a platform 1, a control panel 2, a fixing component 3 and a detection component 4, wherein the control panel 2, the fixing component 3 and the detection component 4 are all connected to the platform 1, and the control panel 2 controls the fixing component 3 and the detection component 4 through a program;

[0048] The fixing assembly 3 in the present invention comprises a linear guide rail A301, a tailstock fixing plate 304, a top tailstock 305, a hollow motor seat 306 and a hollow motor 307, wherein the linear guide rail A301 is fixedly connected to the upper end of the platform 1, the tailstock fixing plate 304 is slidably connected to the linear guide rail A301, the top tailstock 305 is fixedly connected to the upper end of the tailstock fixing plate 304, the hollow motor seat 306 is fixedly connected to the platform 1, the hollow motor 307 is fixedly connected to the hollow motor seat 306, and a chuck jaw 308 is drivingly connected to the output end of the hollow motor 307, and the hollow motor 307 is used to drive the chuck frame jaw to rotate. The chuck jaw 308 in the present invention is composed of a flexible chuck 3081, a taper body 3082, a buckle pull sleeve 3083, an axial positioning flange 3084, a guide sleeve 3085, a fixed wedge block 3086, a method The flexible chuck 3081 is composed of a blue plate 3087, a spring pull sleeve 3088, a bottom plate 3089, a spring 30810 and a top screw 30811. The buckle pull sleeve 3083 is used to fix the flexible chuck 3081. The spring pull sleeve 3088 is used to push the buckle pull sleeve 3083, the guide sleeve 3085 and the spring pull sleeve 3088 to keep the flexible chuck 3081 in a normally closed state. The top screw 3081 is used to control the fixed wedge block 3086 to replace the flexible chuck 3081. The material of the flexible chuck 3081 includes but is not limited to rubber or polyurethane. Specifically, in the present embodiment, the material of the flexible chuck 3081 can be rubber. The flexible chuck 3081 can be replaced according to different specifications of detection parts. The flexible chuck 3081 can be embedded in the ballway of the ball screw without damaging the surface of the ballway. The lengthened structure can increase the clamping area and reduce the circular runout caused by the flexible material.

[0049] The detection component 4 in the present invention includes a linear guide rail B401, a ball screw nut seat 402, a single-axis robot fixed seat 403, a single-axis robot 404, a motor fixed plate 405, a synchronous pulley 411 and a polishing wheel 414. The linear guide rail B401 is fixedly connected to the platform 1, the single-axis robot fixed seat 403 is slidably connected to the linear guide rail B, the ball screw nut seat 402 is fixedly connected to the bottom of the single-axis robot fixed seat 403, the single-axis robot 404 is fixedly connected to the single-axis robot fixed seat 403, and the motor fixed plate 405 is fixedly connected to the single-axis robot 404. The utility model can control the overall detection component 4 to move along the X and Y directions through the single-axis robot 404.

[0050] The utility model has a driving motor 406, a spindle seat 407 and a motor bracket 421 fixedly connected to a motor fixing plate 405, a spindle 408, a bearing 409 and a bearing locking nut 410 installed on the spindle seat 407, the polishing wheel 414 is connected to the spindle 408, two synchronous pulleys 411 are provided, which are respectively installed on the spindle 408 and the driving motor 406, a synchronous belt shield 413 is installed outside the synchronous pulley 411, and a synchronous belt 412 is installed on the synchronous pulley 411; two groups of direct drive motors 420 are installed on the motor bracket 421, one of the groups of direct drive motors 420 is connected to an edge finder probe bracket 419, and the edge finder probe bracket 419 is connected to the edge finder probe bracket 419. An edge finder probe 418 is installed on the top, a roughness sensor bracket 423 is connected to another set of direct drive motors 420, and a roughness sensor 422 is installed on the roughness sensor bracket 423. The direct drive motor 420 has high precision and high response speed, and can fine-tune the position angle of the edge finder probe bracket 419 equipped with the edge finder probe 418 and the roughness sensor bracket 423 equipped with the roughness sensor 422. The detection component 4 moves along the X and Y directions, and the extension and retraction of the edge finder probe 418 and the roughness sensor 422, and the start and stop of the polishing wheel 414 are all controlled by the control screen 2. At the same time, the preset value, measurement value and other requirements of the roughness sensor 422 are displayed on the control screen 2. If the required roughness requirement is high, or the detected roughness does not meet the standard, it can be polished by replacing the lathe tool or using the polishing wheel 414.

[0051] The utility model has a guide rail clamp A303 installed on the linear guide A301, and the position of the top tailstock 305 can be fixed by the guide rail clamp A303. The linear guide B401 is installed with a guide rail clamp B424, and the position of the single-axis robot fixed seat 403 can be fixed by the guide rail clamp B424. The utility model has a polishing wheel guard fixing plate 416 connected to the spindle seat 407, and a polishing wheel guard 415 is fixedly connected to the polishing wheel guard fixing plate 416. A polishing wheel chuck 417 is connected to the spindle 408, and the polishing wheel chuck 417 is used to fix the polishing wheel 414. The utility model has buffer limit frames 302 at both left and right ends of the linear guide A301. The buffer limit frame 302 and the platform 1 are fixedly connected to each other, and the fixed component 3 can be buffered and limited by the buffer limit frame 302.

[0052] Working principle: The utility model is a detection device applied to the processed end of the ball screw shaft. When in use, the hollow motor 307 can be used to drive the extended flexible chuck jaw 308 to rotate, and the extended flexible chuck jaw 308 and the top tailstock 305 fix the ball screw. The processed ball screw is clamped and fixed by the extended flexible chuck jaw 308, and the tail end is tightened and fixed by the top tailstock 305. The hollow motor 307 that fixes the extended flexible chuck jaw 308 drives the ball screw to rotate at a uniform speed. The hollow motor 307 is fixed on the plane through the motor seat. On table 1, the top tailstock 305 can be moved by the linear guide A301 structure to match the length of the ball screw and positioned using the guide clamp A303; the extended flexible chuck jaws 308 can be replaced to match the outer diameter of the ball screw. The utility model locates the shaft end position by the edge finder probe 418, and the roughness sensor 422 performs roughness detection on the shaft end processing position. The shaft end roughness is detected by the preset roughness. If the detected roughness does not reach the preset roughness, the shaft end can be polished by the polishing wheel 414 to improve the finish.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A ball screw detection device, comprising a platform (1), a control panel (2), a fixing component (3) and a detection component (4), wherein the control panel (2), the fixing component (3) and the detection component (4) are all connected to the platform (1), and the control panel (2) controls the fixing component (3) and the detection component (4) through a program; It is characterized in that The fixing assembly (3) comprises a linear guide rail A (301), a tailstock fixing plate (304), a top tailstock (305), a hollow motor seat (306) and a hollow motor (307); the linear guide rail A (301) is fixedly connected to the upper end of the platform (1); the tailstock fixing plate (304) is slidably connected to the linear guide rail A (301); the top tailstock (305) is fixedly connected to the upper end of the tailstock fixing plate (304); the hollow motor seat (306) is fixedly connected to the platform (1); the hollow motor (307) is fixedly connected to the hollow motor seat (306); and a chuck jaw (308) is drivingly connected to the output end of the hollow motor (307); The detection assembly (4) comprises a linear guide rail B (401), a ball screw nut seat (402), a single-axis robot fixed seat (403), a single-axis robot (404), a motor fixed plate (405), a synchronous pulley (411) and a polishing wheel (414); the linear guide rail B (401) is fixedly connected to the platform (1); the single-axis robot fixed seat (403) is slidably connected to the linear guide rail B (401); the ball screw nut seat (402) is fixedly connected to the bottom of the single-axis robot fixed seat (403); the single-axis robot (404) is fixedly connected to the single-axis robot fixed seat (403); and the motor fixed plate (405) is fixedly connected to the single-axis robot (404); The motor fixing plate (405) is fixedly connected with a driving motor (406), a main shaft seat (407) and a motor bracket (421); a main shaft (408), a bearing (409) and a bearing locking nut (410) are installed on the main shaft seat (407); the polishing wheel (414) is connected to the main shaft (408); two synchronous pulleys (411) are provided, which are respectively installed on the main shaft (408) and the driving motor (406); and a synchronous belt (412) is installed on the synchronous pulley (411); Two groups of direct drive motors (420) are installed on the motor bracket (421), one group of direct drive motors (420) is connected to an edge finder probe bracket (419), an edge finder probe (418) is installed on the edge finder probe bracket (419), and the other group of direct drive motors (420) is connected to a roughness sensor bracket (423), and a roughness sensor (422) is installed on the roughness sensor bracket (423).

2. A ball screw detection device according to claim 1, characterized in that: The chuck jaw (308) is composed of a flexible chuck (3081), a tapered body (3082), a buckle pull sleeve (3083), an axial positioning flange (3084), a guide sleeve (3085), a fixed wedge (3086), a flange (3087), a spring pull sleeve (3088), a base plate (3089), a spring (30810) and a top screw (30811). The buckle pull sleeve (3083) is used to fix the flexible chuck (3081), and the spring pull sleeve (3088) is used to push the buckle pull sleeve (3083), the guide sleeve (3085) and the spring pull sleeve (3088) to keep the flexible chuck (3081) in a normally closed state.

3. A ball screw detection device according to claim 2, characterized in that: The top screw (30811) is used to control the fixed wedge block (3086) to replace the flexible chuck (3081), and the flexible chuck (3081) is a polyurethane chuck or a rubber chuck.

4. A ball screw detection device according to claim 1, characterized in that: A guide rail clamp A (303) is installed on the linear guide rail A (301), and a guide rail clamp B (424) is installed on the linear guide rail B (401).

5. A ball screw detection device according to claim 1, characterized in that: The spindle seat (407) is connected to a polishing wheel guard fixing plate (416), a polishing wheel guard (415) is fixedly connected to the polishing wheel guard fixing plate (416), and a polishing wheel chuck (417) is connected to the spindle (408), and the polishing wheel chuck (417) is used to fix the polishing wheel (414).

6. A ball screw detection device according to claim 1, characterized in that: A synchronous belt shield (413) is installed outside the synchronous belt wheel (411).

7. A ball screw detection device according to claim 1, characterized in that: Buffer limit frames (302) are provided at both left and right ends of the linear guide rail A (301), and the buffer limit frame (302) and the platform (1) are fixedly connected to each other.

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