CN218469702U

CN218469702U - Mechanism for detecting hole position based on elastic floating pin

Info

Publication number: CN218469702U
Application number: CN202222167775.0U
Authority: CN
Inventors: 程浩
Original assignee: Shanghai Roc Automotive Equipment Technology Co ltd
Current assignee: Shanghai Roc Automotive Equipment Technology Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2023-02-10
Anticipated expiration: 2032-08-17

Abstract

A mechanism for detecting hole position degree based on an elastic floating pin comprises an adjusting base, a telescopic cylinder, a fixed base and floating equipment, wherein a bearing seat is installed at the upper part of the fixed base; telescopic cylinder installs in the upper end of adjusting the base, and floating equipment is including installing detection round pin, spring, connecting cylinder together, and the one end of connecting cylinder and telescopic cylinder's piston rod are installed together. This novel buffer gear who has formation such as spring detects the round pin and has the allowance of floating, consequently can prevent that part detection position department contact from detecting the round pin moment too big, causing the damage that detects the round pin. Based on the above, so the utility model discloses good application prospect has.

Description

Mechanism for detecting hole position based on elastic floating pin

Technical Field

The utility model relates to a check out test set technical field, especially a mechanism based on elastic floating round pin detection hole site degree of putting.

Background

In the industrial production field, in order to ensure the quality of a produced product, detection equipment is adopted to detect the position degree of a hole (such as a hole of a vehicle gearbox) of a component, so that the situation that the whole equipment cannot be normally assembled and operated due to the position deviation of the hole is prevented. During detection, equipment including a mechanical arm, an electric conveying mechanism and the like conveys the detection mechanism to a detection station with a fixed position, and then the detection mechanism detects parts and hole positions which are placed at fixed positions and in fixed directions on the detection station (or the displacement of the parts to be detected is detected, and the detection mechanism is fixed).

In the prior art, the device for detecting the opening position degree of the component mainly has the following two types, the first type is a detection mechanism which is based on a bidirectional sliding table and is matched with a displacement sensor at the same time, and the device has the defects of large structural appearance, complex design and high cost. The other is a detection mechanism based on laser vision, which has the disadvantages of complex structure, high use cost and the like due to the need of a laser monitor and a corresponding data processing system. Meanwhile, in the application of the two detection mechanisms, the problems of long debugging period, high debugging difficulty and large quantity of tests for verifying the stability exist, so that the effective application of the two detection mechanisms is restricted. Based on the above, it is necessary to provide a mechanism for detecting the position degree of the hole, which has a simple and compact structure and is convenient to use.

SUMMERY OF THE UTILITY MODEL

Because the structure limits, there is as the background in order to overcome the equipment of current detection hole site degree of putting the drawback, the utility model provides a simple structure is compact, with low costs, convenient to use, detects the part trompil position through the detection round pin of fixed direction in the detection, and owing to have the surplus mechanism of floating, can prevent to detect a mechanism based on elastic floating round pin detection hole site degree of putting of contact detection round pin moment is too big to cause the damage.

The utility model provides a technical scheme that its technical problem adopted is:

a mechanism for detecting the position degree of a hole based on an elastic floating pin comprises an adjusting base, a telescopic cylinder and a fixed base, and is characterized by further comprising a floating device, wherein a bearing seat is installed at the upper part of the fixed base; the telescopic cylinder is installed at the upper end of the adjusting base, the floating equipment comprises a detection pin, a spring and a connecting cylinder, one end of the connecting cylinder is installed with a piston rod of the telescopic cylinder, and the spring is located in one end of the connecting cylinder; the connecting cylinder is annularly distributed with a plurality of screw holes, each screw hole is screwed with one limiting column, a plurality of guide grooves are annularly distributed at one end of the detection pin, one end of the detection pin is positioned in the connecting cylinder, and the limiting columns are positioned in the inner part of the connecting cylinder and positioned in the guide grooves respectively.

Further, the outer diameter of one end of the detection pin is smaller than the inner diameter of the connecting cylinder.

Furthermore, the outer diameter of the limiting column is smaller than the width of the guide groove, the length of the guide groove is larger than the outer diameter of the limiting column, and the outer diameter of the spring is smaller than the outer diameter of one end of the detection pin.

Further, the other end of the detection pin is tapered.

The utility model has the advantages that: the utility model discloses simple structure is compact, with low costs, detect convenient to use, and PLC control telescopic cylinder promotes to detect the round pin forward motion in the detection, detects the round pin contact and is detected the part, if detect the round pin front end behind the automatic shutdown motion and be located the downthehole of part this moment, the trompil position of representing the part so is correct, otherwise the position is incorrect. Because this novel buffer gear who has formation such as spring, the detection round pin has the allowance of floating, consequently can prevent that part detection position department contact detection round pin moment is too big, cause the damage of detection round pin (have certain speed in the telescopic cylinder control detection round pin motion, detection round pin contact detection point is rigid contact, consequently does not have and causes the detection round pin to damage easily when spring buffering). Based on the above, so the utility model discloses good application prospect has.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic view of the overall cross-sectional structure and the local enlarged structure of the present invention.

Detailed Description

As shown in fig. 1, 2, and 3, a mechanism for detecting a position degree of a hole based on an elastic floating pin includes an adjusting base 1, a telescopic cylinder 2, and a fixing base 3, wherein one end of two electromagnetic valves (not shown in the drawings) of two air inlets and outlets of the telescopic cylinder 2 is respectively connected with an exhaust pipe (not shown in the drawings) of an air compressor (not shown in the drawings) through a hose, power signal input ends of the two electromagnetic valves are respectively connected with a signal power output end of a PLC (not shown in the drawings) through a wire, the PLC stops outputting a signal power to the electromagnetic valves when air pressure in the telescopic cylinder 2 is too high, so as to prevent a piston rod of the telescopic cylinder from not moving forward to a dead point and contacting with an object or moving forward to a cylinder dead point and being damaged due to too high air pressure, the mechanism further includes a floating device, a bearing seat 4 is installed on the middle of the adjusting base 3 through a screw nut, a shaft lever (not shown in the drawings) is tightly sleeved in a bearing inner ring of the bearing 4, an upper end of the shaft lever is welded on the middle of the lower end of the adjusting base 1 (the adjusting base can rotate a certain angle along the bearing), a screw hole is respectively installed around the adjusting base 1, a screw rod is installed on the fixing base 5, and a front end of a manipulator fixed screw mechanism is tightly screwed into a front arm of the fixing base 5, or four fixed on the fixing base, and four fixed arm, and a front arm mechanism is installed around the fixing base 1; the telescopic cylinder 2 is transversely distributed, the lower end of a cylinder body of the telescopic cylinder is installed at the upper end of the adjusting base 1 through a screw nut, the floating equipment comprises a detection pin 6, a spring 7 and a connecting cylinder 8, the middle part of the left end of the connecting cylinder 8 is installed with the left end of a piston rod of the telescopic cylinder 3 through threads, and the spring 7 is located in the left end of the connecting cylinder and at the right end of the piston rod; three staggered internal thread openings are distributed on the left end and the right end of the middle of the connecting cylinder 8 in an annular mode, a limiting column 9 is screwed into each opening, three staggered rectangular guide grooves 81 are distributed on the left end and the right end of the detection pin 6 in an annular mode and transversely arranged, the left end of the detection pin 6 is located in the connecting cylinder 8, and the inner parts of the connecting cylinder, where the six limiting columns 9 are located, are located in the six guide grooves 81 respectively.

As shown in fig. 1, 2 and 3, the outer diameter of the left end of the detection pin 6 is 0.3 mm smaller than the inner diameter of the connecting cylinder 8. The outer diameter of the position, located inside the connecting cylinder, of the limiting column 9 is smaller than the width of the guide groove 81 by 0.2 mm, the length of the guide groove 81 is larger than the outer diameter of the limiting column 9 by 1 cm, and the outer diameter of the spring 7 is smaller than the outer diameter of the left end of the detection pin 6. The other end of the detection pin 6 is tapered.

As shown in fig. 1, 2 and 3, before the novel detection device is used, the positions of the detection pins 6 and the like are adjusted according to the hole position correspondence of the batch detection parts as required, so that the right ends of the subsequent detection pins 6 in the detection can directly enter corresponding holes of the parts to be detected at fixed positions of detection stations (a plurality of detection parts are respectively placed in the detection stations through other equipment, and the positions of the detected hole positions are consistent); before adjustment, the four fixing screw rods 5 are loosened by using a wrench and the like, and then the fixing screw rods 5 are screwed after the adjusting base 1 and the detecting pin 6 are rotated to adjust the angle positions in place. During detection, the PLC controls a piston rod of the telescopic cylinder 2 to push the detection pin 6 to move forwards, the detection pin 6 contacts a detected component, after the automatic stop movement (or manual control), if the front end of the detection pin is located in a hole of the component at the moment, the position of the opening of the component is correct, otherwise, the position is incorrect (for example, other positions without the opening of the component are contacted; when the air pressure in the telescopic cylinder 2 is too high, the PLC stops outputting a signal power supply to the electromagnetic valve, the detection pin does not move any more, and the piston rod of the telescopic cylinder is prevented from not moving forwards to a dead point and contacting with an object, or is prevented from moving forwards to the dead point and being damaged due to overhigh air pressure in a cylinder barrel). Because this novel buffer gear who has formation such as spring 7, it has the allowance of floating to detect round pin 6, can compress spring 7 rearward movement behind the contact element of detection round pin 6, then, follow-up telescopic cylinder's piston rod stop motion (detection round pin moves along six spacing posts 9 through six guide ways 81, spacing post 8 is to the fore-and-aft movement direction of detection round pin 6), consequently can prevent that part detection position department contact detection round pin moment is too big, cause the damage of detection round pin (telescopic cylinder control has certain speed in the detection round pin motion, it is the rigid contact to detect round pin contact check point, consequently do not cause the detection round pin to damage easily when having the spring buffering, the detection round pin just fully contacts with the part through the spring buffering, consequently, the spring has absorbed partial rigid effort, has played the guard action to examining detection round pin 6. After the detection is finished, the PLC controls the piston rod of the telescopic cylinder 2 to push the detection pin 6 to move backwards to a proper position and then stop, so that preparation is provided for next detection. It should be noted that, in this is novel, PLC control solenoid valve, and then both ends in the compressed gas of air compressor machine output gets into telescopic cylinder's the cylinder, control telescopic cylinder's working method, be current very mature industrial control technique, this embodiment no longer does to describe repeatedly above-mentioned concrete principle.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but rather can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A mechanism for detecting the position degree of a hole based on an elastic floating pin comprises an adjusting base, a telescopic cylinder and a fixed base, and is characterized by further comprising a floating device, wherein a bearing seat is installed at the upper part of the fixed base; the telescopic cylinder is installed at the upper end of the adjusting base, the floating equipment comprises a detection pin, a spring and a connecting cylinder, one end of the connecting cylinder is installed with a piston rod of the telescopic cylinder, and the spring is located in one end of the connecting cylinder; the connecting cylinder is annularly distributed with a plurality of screw holes, each screw hole is screwed with one limiting column, a plurality of guide grooves are annularly distributed at one end of the detection pin, one end of the detection pin is positioned in the connecting cylinder, and the limiting columns are positioned at the inner part of the connecting cylinder and are respectively positioned in the guide grooves.

2. The mechanism for detecting the position degree of the hole based on the elastic floating pin as claimed in claim 1, wherein an outer diameter of one end of the detection pin is smaller than an inner diameter of the connecting cylinder.

3. The mechanism for detecting the position degree of the hole based on the elastic floating pin as claimed in claim 1, wherein the outer diameter of the limiting column is smaller than the width of the guide groove, the length of the guide groove is larger than the outer diameter of the limiting column, and the outer diameter of the spring is smaller than the outer diameter of one end of the detection pin.

4. The mechanism for detecting the position degree of the hole based on the elastic floating pin as claimed in claim 1, wherein the other end of the detecting pin is tapered.