CN205561811U - Rod roundness detection device - Google Patents

Abstract

The utility model discloses a rod roundness detection device, ring including the level setting, the rigid coupling has the support that the vertical direction in three edge set up on the ring ring body, three support distributes in the different position departments of ring, the top of every support is equipped with pressure digital display ware, the guide pin bushing one end that pressure digital display ware connection level set up, the inside spring that is equipped with of guide pin bushing, the one end of spring is connected on the response port of pressure digital display ware, the other end of spring is connected with the point contact spheroid, the point contact spheroid is located the other end port department of guide pin bushing, three point contact spheroid all assembles in same position department. The problem of the detection efficiency that exists of current detection device low, the error is big is solved.

Description

A bar roundness detection device

technical field

The utility model belongs to the technical field of bar roundness detection and relates to a bar roundness detection device.

Background technique

At present, most of the roundness detection methods for bars on the market are to measure the roundness of the longitudinal section of the bar through a caliper. However, the detection efficiency of this method is low, so many factories use marble inspection. Platform, the bar is rolled on the inspection platform for many times, so as to judge whether its roundness is qualified. This method is to observe the roundness of the bar with the naked eye, and the detection accuracy is low and the error is large. Based on the problems existing in the above two detection methods, it is necessary to design a bar roundness detection device with high detection efficiency and small error.

Utility model content

The purpose of the utility model is to provide a bar roundness detection device, which solves the problems of low detection efficiency and large error existing in the existing detection device.

The technical scheme adopted by the utility model is that a bar roundness detection device includes a circular ring arranged horizontally, and three supports arranged vertically are fixed on the ring body, and the three supports are distributed on the At different positions of each bracket, a pressure digital display is provided on the top of each bracket, and the pressure digital display is connected to one end of the horizontally arranged guide sleeve. A spring is provided inside the guide sleeve, and one end of the spring is connected to the sensing port of the pressure digital display. The other end of the spring is connected to a point-contact sphere, which is located at the port at the other end of the guide sleeve, and the three point-contact spheres all converge at the same position.

The utility model is also characterized in that,

Two of the three supports are arranged at an included angle of 120°, and the three point contact spheres are also arranged at an included angle of 120° between the two.

The bracket is a height-adjustable rod structure.

The bracket includes a vertically arranged sleeve with a closed bottom surface. A vertically arranged support rod is sleeved inside the sleeve. The pressure digital display is located on the top of the support rod. Pin shafts are respectively sleeved in each of the round holes, and each pin shaft is connected to the round holes by thread fit.

The beneficial effect of the utility model is that the device is designed with three detection positions in a triangular distribution, and the three detection positions are distributed at an angle of 120° between each other. After putting the rod into the position to be detected, the rotating rod The roundness of the bar is determined by observing the counts of the spring pressure gauges at the three detection positions, which greatly saves the time used to detect the bar, and the accuracy will not decrease while shortening the time, greatly The production cost is saved. The device has wide application, compact structure, simple disassembly and assembly, and is not easy to be damaged.

Description of drawings

Fig. 1 is a schematic structural view of a bar roundness detection device of the present invention;

FIG. 2 is a top view of FIG. 1 .

In the figure, 1. Sample to be tested, 2. Point contact ball, 3. Spring, 4. Control button, 5. Display, 6. Ring, 7. Rod, 8. Pressure digital display, 9. Guide Cover, 10. sleeve, 11. bearing pin.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model is a bar roundness detection device, the structure is shown in Figure 1 and 2, including a circular ring 6 arranged horizontally. Distributed at different positions of the ring 6, the top of each bracket is provided with a pressure digital display 8, and the pressure digital display 8 is connected to one end of the horizontally arranged guide sleeve 9, and the inside of the guide sleeve 9 is provided with a spring 3, and the spring 3 One end is connected to the sensing port of the pressure digital display 8, the other end of the spring 3 is connected to the point contact sphere 2, the point contact sphere 2 is located at the other end port of the guide sleeve 9, and the three point contact spheres 2 all converge at the same position .

Two of the three supports are arranged at an included angle of 120°, and the three point contact spheres 2 are also arranged at an included angle of 120° between each two.

The bracket is a height-adjustable rod structure.

The support includes a vertically arranged sleeve 10 with a closed bottom surface. A vertically arranged pole 7 is sleeved inside the sleeve 10. The pressure digital display 8 is located on the top of the pole 7 and is symmetrical along the two sides of the mouth of the sleeve 10. A round hole is provided, and pin shafts 11 are respectively sleeved in the two round holes, and each pin shaft 11 is connected to the round hole by thread fit.

The method of using a bar roundness detection device of the utility model is as follows: put the sample 1 to be tested between the three point contact spheres 2, place the sample 1 to be tested in the vertical direction, and the three points contact the sphere 2 Contact the sample 1 to be tested at three different positions of the sample 1 to be tested, and perform zero adjustment through the control button 4 on the pressure digital display 8. At this time, the three springs 3, the point contact sphere 2 and the sphere to be tested The force suffered by the sample 1 is the same value, and the sample 1 to be tested is rotated along a circle, and the display screen 5 on each pressure digital display 8 will display a pressure value, and the value on a circle of the sample 1 to be tested can be Record the changes, judge whether the roundness of the bar meets the requirements through the recorded vertical, and complete the detection of the roundness of the bar. If you want to test the roundness at different heights of the test sample 1, you can adjust it through the pin shaft The relative height of the support rod 7, when it is necessary to detect the roundness of the higher part of the sample 1 to be tested, the support rod 7 can be raised from the sleeve 10, and when adjusted to a suitable height, the pin shaft 11 can be used from the The opposite sides of the sleeve 10 support the support rod 7, and the pin shaft 11 passes through the circular hole and is pushed on the outer wall of the support rod 7 and is screwed tightly; when it is necessary to detect the roundness of the lower part of the sample 1 to be tested, Loosen the pin shaft 11, put more part of the pole 7 into the sleeve 10, the height of the pole 7 becomes lower, that is, the position of the point contact with the sphere 2 also becomes lower correspondingly, and then through the pin shaft 11 respectively from the sleeve 10 Support the pole 7 on the opposite sides of the pole, the pin shaft 11 passes through the circular hole on the outer wall of the pole 7 and tightens it by thread, and the sleeve 10 and the pole 7 are adjusted in height by the pin shaft 11.

A total of 100 titanium alloy rods with a diameter of Φ50mm+5-5 were tested using an artificial marble inspection platform. The results showed that there were 17 rods with discrepancies in roundness. The device measured and found that 25 pieces had discrepancies in roundness, from 17% unqualified rate to 25% unqualified rate, which can be found out very quickly, which improves the detection efficiency of defective products.

The utility model is characterized in that a bar roundness detection device is suitable for bar roundness detection under various working conditions, and has low manufacturing cost, compact structure, simple disassembly and assembly, not easy to be damaged, and has a wide range of uses.

Claims (4)

1. a bar circularity detection device, it is characterised in that: include horizontally disposed annulus (6), circle Being connected with three supports vertically arranged on ring (6) ring body, three described supports are distributed in circle The various location of ring (6), the top of each support is provided with pressure device for digit-displaying (8), pressure device for digit-displaying (8) connecting horizontally disposed guide pin bushing (9) one end, guide pin bushing (9) is internal is provided with spring (3), spring (3) one end is connected in the sensor port of pressure device for digit-displaying (8), and the other end of spring (3) is even Being connected to point cantact spheroid (2), point cantact spheroid (2) is positioned at the other end port of guide pin bushing (9), and three Individual described point cantact spheroid (2) all converges at same orientation.

A kind of bar circularity detection device the most according to claim 1, it is characterised in that: three institutes Stating support to arrange in 120 ° of angles between any two, three described point cantact spheroids (2) are also the most two-by-two Between arrange in 120 ° of angles.

A kind of bar circularity detection device the most according to claim 1, it is characterised in that: described Frame is adjustable for height bar structure.

A kind of bar circularity detection device the most according to claim 3, it is characterised in that: described Frame includes being vertically arranged and bottom surface is closed sleeve (10), is socketed with in sleeve (10) and is vertically arranged Pole (7), described pressure device for digit-displaying (8) is positioned at the top of pole (7), along the cylinder of sleeve (10) Mouth lateral symmetry offers circular hole, is respectively sleeved on bearing pin (11), each bearing pin in two described circular holes (11) it is connected by threaded engagement with between described circular hole.