CN111678395A - A hole measuring device - Google Patents

Abstract

The invention discloses a hole position measuring device, which comprises a guide column, a measuring head, a zero alignment ring, a front end fixing ring, a middle fixing ring and a rear end fixing ring. The lower end of the fixing ring is in contact with the front end fixing ring, and the middle fixing ring is installed on the front fixing ring. The measuring rod of the assembly is in contact with the top of the guide column, and the zero ring is fitted on the front end fixing ring and the measuring head. The form of the measuring assembly can be set as an external dial indicator or a built-in sensor, which can be used for accurate and rapid measurement of the hole. Location.

Description

A hole measuring device

technical field

The invention belongs to the technical field of hole position measurement, in particular to a hole position measurement device.

Background technique

The detection of holes is a very common detection data in the industrial production process. There are three main detection methods:

Caliper detection method: The inspection personnel use calipers to measure the hole position. This detection method has high labor intensity and low detection efficiency.

Altimeter detection method: The inspector uses the altimeter to measure the hole position. This detection method has high labor intensity and low detection efficiency.

Three-coordinate detection method: The inspector uses three-coordinates to measure the hole position. The investment cost of three-coordinate equipment is relatively large, and this detection method occupies three-coordinates for too long, which will cause other products to be inspected.

With the development of technology, a variety of special control detection tools have also appeared.

During the actual use, the inventor found that these existing technologies have at least the following technical problems:

1. The existing mainstream detection is still vernier caliper, manual positioning, manual data reading, large human influence factors, difficult positioning, and there will be certain errors.

2. It is difficult for the existing detection tools to accurately and systematically measure the specific data of the hole position offset. Basically, it can only be used to judge whether the hole position is offset, the direction of the offset, etc. There is no way to measure the hole position. Bits are digitized for precise records.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned shortcomings, the inventor of the present invention has continuously reformed and innovated through long-term exploration attempts and repeated experiments and efforts, and proposed a hole position measuring device, which can be used to accurately and quickly measure the hole position.

The technical scheme adopted in the present invention for achieving the above object is:

A hole position measurement device, comprising a guide column, a probe, a zeroing ring, a front-end fixing ring, an intermediate fixing ring, a rear-end fixing ring and a measuring assembly, the measuring assembly includes a measuring rod and a dial indicator, and the dial indicator measures The head is in contact with the end of the measuring rod, and the middle part of the guide column is provided with a disc; The disc in the middle is located inside the middle fixing ring, the rear fixing ring is installed on the middle fixing ring, and the measuring assembly is arranged around the side of the rear fixing ring. ring and probe.

According to a hole position measuring device of the present invention, a further preferred technical solution is: the guide column is cylindrical, the diameter of the lower end of the guide column is reduced to form a step, a disc is arranged in the middle, and the diameter of the upper end is increased to form a column head , the column head is located in the center of the rear end fixing ring, and the circumference of the column head is in contact with the measuring rod.

According to a hole position measuring device according to the present invention, a further preferred technical solution is: the diameter of the lower end of the guide column is reduced to form a step, a spring A is placed on the step, and the top of the measuring head has a cylindrical depression, which guides the The lower end of the column is installed with a spring A and then placed in the cylindrical recessed space of the probe. There is a transverse through hole on the upper part of the probe, and a cylindrical pin A is arranged in the through hole. The cylindrical pin A passes through the lower end of the guide column and fixes the probe on the guide column. superior.

According to the hole position measuring device of the present invention, a further preferred technical solution is: steel ball fixing rings are arranged at both ends of the disc in the middle of the guide column, and the steel ball fixing rings are located inside the middle fixing ring and have a diameter equal to that of the middle fixing ring. The inner diameter of the steel ball fixing ring is equal, the position of the steel ball fixing ring after installation is in the two ends of the middle fixing ring, the steel ball control is evenly distributed on the steel ball fixing ring, the steel ball is placed in the steel ball hole, and the highest point of the steel ball is two sides of the middle fixing ring. The end faces are flush.

According to a hole position measuring device according to the present invention, a further preferred technical solution is: the front end fixing ring is a second-order disc, the smaller step is in contact with the probe, and the zero ring is sleeved on the smaller step On the probe, arrange six magnet steel mounting holes around the smaller one on the larger step, place the copper sleeve in the magnet steel mounting hole, and place the magnet steel in the copper sleeve. The steps are of the same height, the two ends are flush after installation, the lower end of the magnetic steel is flush with the lower end of the larger step, and the upper end is located in the middle of the copper sleeve.

According to a hole position measuring device of the present invention, a further preferred technical solution is: four arc-shaped grooves are evenly distributed on the circumference of the upper end face of the rear-end fixing ring, and screws are arranged in the arc-shaped grooves, and the front end of the screw is fixed The fixing ring, the middle fixing ring and the rear end fixing ring are connected together, and four holes are evenly distributed around the middle of the side surface of the rear end fixing ring, and the measuring components are arranged in the holes.

According to a hole position measuring device according to the present invention, a further preferred technical solution is that: the measuring assembly further comprises a plug sleeve and a guide sleeve, and the plug sleeve is installed in two adjacent holes on the rear end fixing ring , the measuring rod is installed in the plug sleeve, the plug sleeve nut is set on the outside of the plug sleeve, the guide sleeve is set in the other two adjacent holes on the rear end fixing ring, the measuring rod is installed in the guide sleeve, and the locking nut is set on the outside of the guide sleeve, A locking sleeve is arranged at the connection between the guide sleeve and the locking nut. The locking sleeve is located in the hollow interior of the guide sleeve and the locking nut. The guide sleeve, the locking nut and the locking sleeve work together to install and fix the dial indicator. The upper part of the fixing ring is provided with a cover plate.

According to a hole position measuring device according to the present invention, a further preferred technical solution is that: the measuring rod is provided with a disc at the contact position with the column head; set.

According to a hole position measuring device according to the present invention, a further preferred technical solution is: a cylindrical pin B is arranged between the front end fixing ring, the middle fixing ring and the rear end fixing ring, and the number of the cylindrical pins B is two and Symmetrical arrangement.

According to the hole position measuring device of the present invention, a further preferred technical solution is that: a distance sensor and a signal sending device are arranged at the rear end of the probe, and the signal sending device is connected to the upper computer.

Compared with the prior art, the technical solution of the present invention has the following advantages/beneficial effects:

1. The device itself is provided with a zero-setting ring, and the initial zero-setting operation is very convenient. It only needs to install the zero-setting ring once to realize the zero-setting operation by using the front-end fixing ring. No hand support is required.

2. It is designed to use two measurement methods of external dial indicator and built-in sensor to meet more use environments. The external dial indicator can adapt to long-term work without external energy or battery replacement. The built-in sensor is convenient to measure data, and the results can be sent directly. to the host computer.

3. The precise position data of the hole position can be obtained through the dial indicator, etc., and the offset of the hole position can be recorded quickly and accurately, digitally and systematically.

4. Adopting mechanical structure design, less device failure and easy maintenance.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a plan view of the present invention.

Figure 3 is a side view of the present invention.

FIG. 4 is a cross-sectional view of the present invention.

Fig. 5 is an oblique sectional view of the present invention.

The marks in the figure are: 1. Guide column 2. Probe 3. Spring A4. Cylindrical pin A5. Zero ring 6. Front end fixing ring 7. Middle fixing ring 8. Back end fixing ring 9. Cover plate 10. Steel ball Fixing ring 11. Copper sleeve 12. Magnetic steel 13. Steel ball 14. Measuring rod 15. Spring B16. Plug sleeve 17. Plug sleeve nut 18. Guide sleeve 19. Lock nut 20. Lock sleeve 21. Cylindrical pin B22. Dial indicator.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of 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. Thus, the detailed descriptions of embodiments of the invention provided below are not intended to limit the scope of the invention as claimed, but are merely representative of selected embodiments of the invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Example 1:

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, and Fig. 5, a hole position measuring device includes a guide column 1, a measuring head 2, a zero alignment ring 5, a front end fixing ring 6, an intermediate fixing ring 7, and a rear end fixing ring 8 and a measuring assembly, the measuring assembly includes a measuring rod and a dial indicator, the dial indicator probe is in contact with the end of the measuring rod, the middle of the guide column 1 is provided with a disc; the lower end of the guide column 1 is installed with a probe 2 , the upper end face of the probe 2 is in contact with the lower end face of the front end fixing ring 6, the middle fixing ring 7 is installed on the front end fixing ring 6, the disc in the middle of the guide column 1 is located inside the middle fixing ring 7, and the rear end fixing ring is installed on the middle fixing ring 7. Ring 8, a measuring assembly is arranged around the side of the rear end fixing ring 8, the measuring rod 14 of the measuring assembly is in contact with the top of the guide column 1, and the zero ring 5 is sleeved on the front end fixing ring 6 and the measuring head 2.

The guide column 1 is cylindrical, the diameter of the lower end of the guide column 1 is reduced to form a step, a disc is arranged in the middle, and the diameter of the upper end is increased to form a column head. , the number of measuring rods 14 in this embodiment is four, that is, two sets of measuring components are provided. Of course, the number of measurement components can be set according to the actual detection requirements, and can also be set to a multiple of 2, such as 6, 8, and so on.

The diameter of the lower end of the guide column 1 is reduced to form a step. A spring A3 is placed on the step. The top of the probe 2 has a cylindrical depression. There is a transverse through hole in the upper part of the probe 2, and a cylindrical pin A4 is arranged in the through hole. The cylindrical pin A4 passes through the lower end of the guide column 1 to fix the probe 2 on the guide column 1.

The middle fixing ring 7 is a simple thicker ring. The two ends of the disc in the middle of the guide column 1 are provided with steel ball fixing rings 10. On the guide column 1, the steel ball fixing ring 10 is located inside the middle fixing ring 7 and its diameter is equal to the inner diameter of the middle fixing ring 7. After the steel ball fixing ring 10 is installed, it is located in the two ends of the middle fixing ring 7, and is fixed on the steel ball. The steel ball 13 is evenly distributed on the ring 10, and the steel ball 13 is placed in the hole of the steel ball 13. The highest point of the steel ball 13 is flush with the two ends of the middle fixing ring 7, and the steel ball 13 can also be slightly higher than the two ends of the middle fixing ring 7. , but it is required that there is no gap between the middle fixing ring 7 and the front fixing ring 6 and the rear fixing ring 8 after they are installed in place. The function of the steel ball 13 is to facilitate the circular motion of the guide column 1, and other similar reasonable structures can also replace the above design.

The front end fixing ring 6 is a second-order disc, the smaller step is in contact with the probe 2, the zero ring 5 is sleeved on the smaller step, and the zero ring 5 is sleeved on the probe 2, on the larger step. Six magnet steel 12 mounting holes are arranged around the smaller steps, a copper sleeve 11 is placed in the magnet steel 12 mounting holes, and a magnet steel 12 is placed in the copper sleeve 11. The copper sleeve 11 is the same height as the larger step of the front fixing ring 6 , after the installation is in place, the two ends are flush, the lower end of the magnetic steel 12 is flush with the lower end of the larger step, and the upper end is located in the middle of the copper sleeve 11.

The function of the copper sleeve 11 is to limit the magnetic lines of force of the magnetic steel 12, so that the magnetic steel 12 has magnetism only at the open ends of the copper sleeve 11. Since the upper end only reaches the middle position of the copper sleeve 11, the magnetic force is small, and the lower end has strong magnetic force, which can be Suction the zero ring 5 on the front fixing ring 6 without using your hands to fix and support the zero ring 5. The zeroing ring 5 is matched with the smaller step of the front end fixing ring 6 when in use. The outer diameter of the smaller step is equal to the inner diameter of the zeroing ring 5. The smaller step realizes the positioning of the zeroing ring 5, and the zeroing ring 5 The diameter of the opening on the bottom end face of the probe is equal to the outer diameter of the probe 22, so as to limit the probe and realize the zero operation.

Four arc-shaped grooves are evenly distributed on the circumference of the upper end surface of the rear-end fixing ring 8, and screws are arranged in the arc-shaped grooves. Four holes are evenly distributed around the middle of the side surface of the fixing ring 8, and the measuring components are arranged in the holes.

The measuring assembly has two forms. The first form is that the blocking sleeve structure and the guiding sleeve structure cooperate to form a set of measuring assemblies. The rear end fixing ring 8 of this embodiment is provided with four mounting holes, that is, two sets of measuring assemblies are provided. The measuring assembly also includes a plug sleeve 16 and a guide sleeve 18, the plug sleeve is installed in two adjacent holes on the rear end fixing ring, the measuring rod 14 is arranged in the plug sleeve 16, and the plug sleeve nut 17 is arranged on the outside of the plug sleeve 16, A guide sleeve 18 is arranged in the other two adjacent holes on the rear end fixing ring, the measuring rod 14 is arranged in the guide sleeve 18, a locking nut 19 is arranged on the outer side of the guide sleeve 18, and a connection between the guide sleeve 18 and the locking nut 19 is arranged. There is a locking sleeve 20, the locking sleeve 20 is located in the hollow interior of the guide sleeve 18 and the locking nut 19, the guide sleeve 18, the locking nut 19, and the locking sleeve 20 work together to install and fix the dial indicator 22, and fix the ring at the rear end. 8. A cover plate 9 is arranged on the upper part, and the cover plate 9 plays a sealing role to prevent dust from entering and affecting the accuracy and lubrication effect. This method does not require external power supply or built-in built-in battery, and the use time is long, and the mechanical structure ensures the reliability during use. Of course, the position of the plugging sleeve can also be set to opposite holes for installation, but it will cause the overall hole position measuring device to be very long and occupy a large space.

A cylindrical pin B21 is arranged between the front end fixing ring 6, the middle fixing ring 7 and the rear end fixing ring 8. The number of the cylindrical pins B21 is two and they are arranged symmetrically. 7. The positioning function of the rear end fixing ring 8.

The measuring rod 14 is provided with a disc at the contact position with the column head. The other end of the measuring rod 14 is installed in the plug sleeve 16 or the guide sleeve 18 after the spring B15 is installed. The disc can facilitate the slight movement of the guide column 1 in any direction. It affects the movement of the measuring rod 14 to realize the reading of data.

Example 2:

This embodiment is based on the first embodiment, and the measurement assembly is improved to form the second form of the measurement assembly. The specific design is to use a distance sensor to realize electronization, and the measurement assembly cancels the dial indicator 22 and related percentages. Meter installation components, such as guide sleeve 18, locking nut 19, locking sleeve 20, and a distance sensor and a signal sending device are added at the rear end of the probe 2. The design of this measuring component can directly obtain the measurement results and send the results to The upper computer can achieve faster measurement, and eliminate the errors, mistakes and other unfavorable factors caused by the manual data reading process.

How to use: Fix the hole position measurement device on the bracket, so that the hole position measurement device can only move vertically up and down, while ensuring that the hole position measurement device and the hole position to be measured are on the same vertical line, remove the zero ring, so that the measurement The head can be moved to any position, and the height of the hole position measuring device can be lowered to make the probe coincide with the position of the hole to be detected. The offset is transmitted to the measuring rod through the guide column, and the measuring rod is in contact with the dial indicator or the sensor. Offset data is accurately measured and can be systematically recorded. When stopping use, install the zero ring to ensure that the zero ring is adsorbed on the front end fixing ring to prevent the probe from shaking and receiving impact and other conditions that affect the accuracy.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The above are only the preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limitations of the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For those skilled in the art, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (10)

1. A hole position measuring device is characterized in that, comprising a guide column, a measuring head, a zero ring, a front end fixing ring, a middle fixing ring, a rear end fixing ring and a measuring assembly, and the measuring assembly includes a measuring rod and a centrifuge. The measuring head of the dial indicator is in contact with the end of the measuring rod, and the middle part of the guide column is provided with a disc; The middle fixing ring, the disk in the middle of the guide column is located inside the middle fixing ring, the rear fixing ring is installed on the middle fixing ring, and the measuring assembly is arranged around the side of the rear fixing ring. The zero ring is fitted on the front end fixing ring and the probe. 2 . The hole position measuring device according to claim 1 , wherein the guide column is cylindrical, the diameter of the lower end of the guide column is reduced to form a step, a disc is arranged in the middle, and the diameter of the upper end is increased to form a column head, The column head is located at the center of the rear end fixing ring, and the circumference of the column head is in contact with the measuring rod. 3. A hole position measuring device according to claim 2, wherein the diameter of the lower end of the guide column is reduced to form a step, a spring A is placed on the step, the top of the measuring head has a cylindrical depression, and the guide column has a cylindrical depression. After installing the spring A at the lower end, it is placed in the cylindrical concave space of the probe. There is a transverse through hole in the upper part of the probe, and a cylindrical pin A is arranged in the through hole. The cylindrical pin A passes through the lower end of the guide column and fixes the probe on the guide column. . 4. A hole position measuring device according to any one of claims 1-3, characterized in that, steel ball fixing rings are arranged at both ends of the disc in the middle of the guide column, and the steel ball fixing rings are located inside the middle fixing ring and have a diameter of It is equal to the inner diameter of the middle fixing ring. After the steel ball fixing ring is installed, it is located in the two ends of the middle fixing ring. The steel ball control is evenly distributed on the steel ball fixing ring, and the steel ball is placed in the steel ball hole. Both ends of the middle fixing ring are flush. 5 . The hole position measuring device according to claim 1 , wherein the front end fixing ring is a second-order disc, the smaller step is in contact with the probe, and the zero ring is set on the smaller step and the probe. 6 . On the probe, arrange six magnet steel mounting holes around the smaller one on the larger step, place the copper sleeve in the magnet steel mounting hole, place the magnet steel in the copper sleeve, the copper sleeve and the larger step of the front fixing ring The height is equal, the two ends are flush after installation, the lower end of the magnetic steel is flush with the lower end of the larger step, and the upper end is located in the middle of the copper sleeve. 6 . The hole position measuring device according to claim 1 , wherein four arc-shaped grooves are evenly distributed on the circumference of the upper end face of the rear-end fixing ring, and screws are arranged in the arc-shaped grooves, and the screws fix the front end. 7 . The ring, the middle fixing ring and the rear fixing ring are connected together, and four holes are evenly distributed around the middle of the side surface of the rear fixing ring, and the measuring components are arranged in the holes. 7 . The hole position measuring device according to claim 6 , wherein the measuring assembly further comprises a plug sleeve and a guide sleeve, and the plug sleeve is installed in two adjacent holes on the rear end fixing ring, 8 . The measuring rod is arranged in the plug sleeve, the plug sleeve nut is arranged on the outer side of the plug sleeve, the other two adjacent holes on the rear end fixing ring are arranged with a guide sleeve, the measuring rod is arranged in the guide sleeve, and the locking nut is arranged on the outside of the guide sleeve, and the There is a locking sleeve at the connection between the guide sleeve and the locking nut. The locking sleeve is located in the hollow interior of the guide sleeve and the locking nut. The guide sleeve, the locking nut and the locking sleeve work together to install and fix the dial indicator and fix it at the rear end The upper part of the ring is provided with a cover plate. 8 . The hole position measuring device according to claim 1 , wherein cylindrical pins B are arranged between the front end fixing ring, the middle fixing ring and the rear end fixing ring, and the number of the cylindrical pins B is two and the number of the cylindrical pins B is two. Symmetrical arrangement. 9. A hole position measuring device according to claim 2, characterized in that, the measuring rod is provided with a disc at the contact position with the column head, and the other end of the measuring rod is installed on the plug sleeve or the guide sleeve after the spring B is installed. middle. 10 . The hole position measuring device according to claim 1 , wherein a distance sensor and a signal sending device are arranged at the rear end of the probe, and the signal sending device is connected to the upper computer. 11 .

Images