Quick replacement device for contourgraph

Abstract

The utility model discloses a rapid replacement device of a contourgraph, and relates to the technical field of contourgraphs. Comprising a measuring rod and a measuring rod fixing piece, one end of the measuring rod is provided with a measuring needle, the other end is provided with a plain end, one end of the measuring rod fixing piece is internally provided with a locking positioning device, and the other end is provided with a fan-shaped block used for installing a contourgraph sensor; the locking and positioning device comprises an upper pressing block and a lower pressing block arranged at the bottom of the upper pressing block, and a plurality of springs are arranged at the bottom of the lower pressing block. The elastic force of the spring abuts against the lower pressing block, so that the lower pressing block abuts against the flat opening and locks the position of the rear-end connecting piece, positioning and locking of the measuring rod are achieved, during replacement, only the upper pressing block needs to be pressed downwards to abut against the lower pressing block to be disengaged from abutting against the flat opening, the operation mode is simple and rapid, dismounting is convenient, the positioning precision is high, and the replacement efficiency is high. And the working efficiency of operators is greatly improved, and wide application prospects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of profilometers, and specifically relates to a quick replacement device for a profilometer. Background Art

[0002] With the continuous development of the measurement and detection industry, there are various profilometers on the market. The working principle of a contact profilometer is that a stylus contacts the surface of the object to be measured, and a sensor at one end collects data. The trajectory of the stylus moving on the object to be measured is collected by the sensor and converted into an electrical signal, which is then processed and calculated by a computer. It can be seen that the stylus component is an extremely important component in profile measurement.

[0003] In current contact profilometers, due to different measured products, the frequency of replacing the measuring rod is high. However, the process of replacing the measuring rod in most profilometers is relatively cumbersome and will affect the calibration data, greatly slowing down the work efficiency of the measurement personnel. Content of the Utility Model

[0004] The utility model provides a quick replacement device for a profilometer to solve the problems in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A quick replacement device for a profilometer, including a measuring rod and a measuring rod fixing member. One end of the measuring rod is provided with a stylus, and the other end is provided with a flat opening. Inside one end of the measuring rod fixing member is provided with a locking and positioning device, and the other end is provided with a sector block for installing a profilometer sensor;

[0006] The locking and positioning device includes an upper pressing block and a lower pressing block arranged at the bottom of the upper pressing block. A plurality of springs are arranged at the bottom of the lower pressing block. The end of the measuring rod with the flat opening extends into the inside of the upper pressing block, and the flat opening abuts against the top of the lower pressing block.

[0007] Further, the measuring rod includes a carbon fiber tube, a front end connecting member, and a rear end connecting member. The carbon fiber tube is a hollow structure, and the front end connecting member and the rear end connecting member are respectively adhered to the inside of both ends of the carbon fiber tube by glue.

[0008] Further, a positioning hole is opened inside the end of the front end connecting member away from the carbon fiber tube. The top of the stylus is fixed inside the positioning hole, and the bottom of the stylus is in a horseshoe shape.

[0009] Further, the flat opening is arranged at the bottom of the end of the rear end connecting member away from the carbon fiber tube.

[0010] Further, the upper pressing block is integrally square, and a notch for sleeving the rear end connecting member and the flat opening is arranged at the bottom of the upper pressing block, and the notch is U-shaped.

[0011] Furthermore, one end of the measuring rod fixing piece extends upward to form a boss, the locking and positioning device is arranged inside the boss, a circular groove 1 is arranged at the inner bottom of the boss, and the bottom end of the spring extends to the inside of the circular groove 1.

[0012] Furthermore, the lower clamping block is square in shape as a whole, and a second circular groove which is sleeved with the top of the spring is provided at the bottom of the lower clamping block.

[0013] Furthermore, a fixing hole which is sleeved with the rear end connecting piece and the flat mouth is provided on one side of the boss.

[0014] Furthermore, mounting holes are provided on both sides of the boss, and positioning pins are fixedly provided inside the mounting holes, and the positioning pins are cylindrical.

[0015] Furthermore, a slide groove is provided at the middle and upper parts of both sides of the upper clamping block, and the opposite ends of the two positioning pins extend to the inside of the two slide grooves respectively, and the slide groove is a waist-shaped groove.

[0016] Compared with the prior art, the utility model provides a quick replacement device for a profiler, which has the following beneficial effects:

[0017] The quick-changing device of the contour meter realizes the positioning and locking of the measuring rod by making the elastic force of the spring press against the lower clamping block so that the lower clamping block presses against the flat mouth and locks the position of the rear end connecting piece. When replacing, it is only necessary to press the upper clamping block downward to press against the lower clamping block to disengage the clamping block from the flat mouth. The operation method is simple and fast, and it is easy to disassemble and has high positioning accuracy, which greatly improves the working efficiency of the operators and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is the structural explosion diagram of the utility model;

[0020] Figure 3 This is an exploded view of the locking and positioning device structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the lower pressing block of the utility model;

[0022] Figure 5 It is a cross-sectional view of the boss structure of the utility model.

[0023] In the figure: 1. Measuring rod; 11. Carbon fiber tube; 12. Front-end connecting piece; 13. Rear-end connecting piece; 14. Probe; 15. Flat end; 16. Positioning hole; 2. Measuring rod fixing piece; 21. Sector block; 22. Boss; 23. First circular groove; 24. Locking and positioning device; 241. Upper pressing block; 242. Lower pressing block; 243. Spring; 244. Notch; 245. Second circular groove; 246. Slide groove; 25. Fixing hole; 26. Mounting hole; 27. Positioning pin. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-4 , the present invention discloses a quick replacement device for a profiler, including a measuring rod 1 and a measuring rod fixing piece 2. One end of the measuring rod 1 is provided with a probe 14, and the other end is provided with a flat end 15. The inside of one end of the measuring rod fixing piece 2 is provided with a locking and positioning device 24, and the other end is provided with a sector block 21 for installing a profiler sensor.

[0026] The locking and positioning device 24 includes an upper pressing block 241 and a lower pressing block 242 arranged at the bottom of the upper pressing block 241. A plurality of springs 243 are arranged at the bottom of the lower pressing block 242. One end of the measuring rod 1 with the flat end 15 extends into the inside of the upper pressing block 241, and the flat end 15 abuts against the top of the lower pressing block 242. By pressing the upper pressing block 241 to make the lower pressing block 242 descend, the lower pressing block 242 compresses the spring 243 and disengages from the abutment against the flat end 15, and the user can pull out the measuring rod 1 for replacement. The measuring rod 1 is locked and positioned by the elastic force of the spring 243, and the replacement operation is more convenient.

[0027] Specifically, the measuring rod 1 includes a carbon fiber tube 11, a front-end connecting piece 12 and a rear-end connecting piece 13. The carbon fiber tube 11 is a hollow structure, and the front-end connecting piece 12 and the rear-end connecting piece 13 are respectively adhered to the inside of both ends of the carbon fiber tube 11 by glue.

[0028] Specifically, a positioning hole 16 is opened inside one end of the front-end connecting piece 12 away from the carbon fiber tube 11. The top of the probe 14 is fixed inside the positioning hole 16, and the bottom of the probe 14 is in a horseshoe shape. The positioning hole 16 is used for installing the probe 14.

[0029] Specifically, the flat mouth 15 is arranged at the bottom of one end of the rear end connecting member 13 away from the carbon fiber tube 11. The upper clamping block 241 is square as a whole. The bottom of the upper clamping block 241 is provided with a notch 244 which is socketed with the rear end connecting member 13 and the flat mouth 15. The notch 244 is U-shaped, and the notch 244 is socketed with the rear end connecting member 13. The notch 244 is relatively high. When the upper clamping block 241 is pressed down, the notch 244 will not interfere with the rear end connecting member 13, and it is more convenient to use.

[0030] Specifically, one end of the measuring rod fixing part 2 extends upward to form a boss 22, and the locking and positioning device 24 is arranged inside the boss 22. A circular groove 23 is provided at the inner bottom of the boss 22, and the bottom end of the spring 243 extends to the inside of the circular groove 23. The lower clamping block 242 is square as a whole, and a circular groove 245 is provided at the bottom of the lower clamping block 242, which is sleeved with the top of the spring 243. The circular groove 23 cooperates with the circular groove 245 to limit the two ends of the spring 243, thereby ensuring the stability of the spring 243.

[0031] Specifically, a fixing hole 25 which is sleeved with the rear end connecting piece 13 and the flat opening 15 is provided on one side of the boss 22 , and the rear end connecting piece 13 penetrates into the boss 22 and the notch 244 through the fixing hole 25 .

[0032] Specifically, both sides of the boss 22 are provided with mounting holes 26, and the interior of the mounting holes 26 is fixedly provided with positioning pins 27, and the positioning pins 27 are cylindrical. The middle and upper parts of both sides of the upper pressing block 241 are provided with slide grooves 246, and the opposite ends of the two positioning pins 27 extend to the interior of the two slide grooves 246, respectively. The slide grooves 246 are waist-shaped grooves, see Figure 5 The positioning pin 27 is provided to limit the rising height of the upper clamping block 241 without affecting the pressing operation of the upper clamping block 241. When the user presses down the upper clamping block 241, the upper clamping block 241 descends and contacts the lower clamping block 242, so that the lower clamping block 242 is separated from the contact with the flat mouth 15 and the rear end connecting piece 13. The carbon fiber tube 11 can be pulled out to pull the rear end connecting piece 13 out of the groove 244 and the inside of the boss 22 for replacement.

[0033] To sum up, the quick replacement device of the contour meter realizes the positioning and locking of the measuring rod 1 by making the elastic force of the spring 243 contact the lower clamping block 242, so that the lower clamping block 242 presses against the flat mouth 15 and locks the position of the rear end connecting piece 13. When replacing, it is only necessary to press the upper clamping block 241 downward to contact the lower clamping block 242 to disengage from the flat mouth 15. The operation method is simple and fast, and it is easy to disassemble and has high positioning accuracy, which greatly improves the work efficiency of the operators and has broad application prospects.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-change device for a profilometer, comprising a measuring rod (1) and a measuring rod fixing member (2), characterized in that: One end of the measuring rod (1) is provided with a measuring needle (14), and the other end is provided with a flat mouth (15); one end of the measuring rod fixing member (2) is provided with a locking positioning device inside, and the other end is provided with a sector block (21) for mounting a profilometer sensor; The locking and positioning device comprises an upper pressing block (241) and a lower pressing block (242) arranged at the bottom of the upper pressing block (241), a plurality of springs (243) are arranged at the bottom of the lower pressing block (242), and one end of the measuring rod (1) provided with a flat mouth (15) extends to the interior of the upper pressing block (241), and the flat mouth (15) is in conflict with the top of the lower pressing block (242).

2. A quick-change device for a profilometer according to claim 1, characterized in that: The measuring rod (1) comprises a carbon fiber tube (11), a front end connecting piece (12) and a rear end connecting piece (13); the carbon fiber tube (11) is a hollow structure; the front end connecting piece (12) and the rear end connecting piece (13) are respectively glued to the inside of both ends of the carbon fiber tube (11) by glue.

3. A quick-change device for a profilometer according to claim 2, characterized in that: A positioning hole (16) is provided inside one end of the front end connecting piece (12) away from the carbon fiber tube (11), the top of the measuring needle (14) is fixed inside the positioning hole (16), and the bottom of the measuring needle (14) is horseshoe-shaped.

4. The quick-change device for a profilometer according to claim 1, characterized in that: The flat opening (15) is arranged at the bottom of one end of the rear end connecting piece (13) away from the carbon fiber tube (11).

5. The quick-change device for a profilometer according to claim 1, characterized in that: The upper pressing block (241) is square in shape as a whole, and a notch (244) is provided at the bottom of the upper pressing block (241) for sleeve connection with the rear end connecting piece (13) and the flat mouth (15), and the notch (244) is U-shaped.

6. The quick-change device for a profilometer according to claim 1, characterized in that: One end of the measuring rod fixing member (2) extends upward to form a boss (22), the locking and positioning device is arranged inside the boss (22), the inner bottom of the boss (22) is provided with a circular groove (23), and the bottom end of the spring (243) extends to the inside of the circular groove (23).

7. The quick-change device for a profilometer according to claim 1, characterized in that: The lower pressing block (242) is square in shape as a whole, and a second circular groove (245) is provided at the bottom of the lower pressing block (242) and is sleeved with the top end of the spring (243).

8. The quick-change device for a profilometer according to claim 6, characterized in that: A fixing hole (25) which is sleeved with the rear end connecting piece (13) and the flat opening (15) is provided on one side of the boss (22).

9. The quick-change device for a profilometer according to claim 6, characterized in that: Both sides of the boss (22) are provided with mounting holes (26), and a positioning pin (27) is fixedly provided inside the mounting hole (26), and the positioning pin (27) is cylindrical.

10. The quick-change device for a profilometer according to claim 9, characterized in that: Slide grooves (246) are provided at the middle and upper parts of both sides of the upper pressing block (241), and the opposite ends of the two positioning pins (27) extend to the inside of the two slide grooves (246) respectively, and the slide grooves (246) are waist-shaped.

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