Mechanism for automatically measuring relative depth

Abstract

The invention relates to a mechanism for automatically measuring relative depth, and belongs to the technical field of automatic measurement. The device comprises a mounting table board (1), an explosion-proof servo motor (2), an explosion-proof pull rod type sensor (3), an explosion-proof signal exchanger (4), a base plane (6), a measuring plane (7), a measuring plane floating reset spring (8), a base plane floating reset spring (10), a coupler (11) and a measuring mounting guide shaft (12). The beneficial effects of the invention are that through the synchronous floating of the measurement surface and the base surface, the problem that the measurement result is influenced by the positioning error generated by repositioning after replacement of various products can be effectively solved, the synchronous floating of the measurement surface and the reference can be realized, the automatic alignment of the measured end surface can be realized, and the measurement precision is improved. Therefore, the relative depth between the reference and the measuring surface is not changed due to the position movement of the product in the carrying process, so that the measuring precision is not influenced, and the automatic measurement of the relative depth is completed.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic measurement, and in particular relates to a mechanism for automatically measuring relative depth. Background Art

[0002] In the existing automatic measurement field, the mechanism for measuring relative depth usually adopts linear sensors to locate at fixed positions for data collection or manual measurement. When only linear sensors are used for measurement of workstations where multiple products need to be replaced, there is a problem of poor data accuracy during the measurement process due to linear errors and positioning errors of linear sensors or excessive space requirements. Traditional manual measurement is slow, difficult to operate, and difficult to record and transmit data. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The technical problem to be solved by the present invention is how to provide a mechanism for automatically measuring relative depth, so as to solve the problem that the positioning error of multi-product measurement existing in the currently used measuring mechanism is large, resulting in large deviation of the measuring result.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes a mechanism for automatically measuring relative depth, comprising: a mounting table 1, an explosion-proof servo motor 2, an explosion-proof pull-rod sensor 3, an explosion-proof signal exchanger 4, a base surface 6, a measuring surface 7, a measuring surface floating reset spring 8, a base surface floating reset spring 10, a coupling 11, and a measuring installation guide shaft 12;

[0007] The installation table 1 is used as the installation base of the entire mechanism. The explosion-proof servo motor 2 is fixed on the right end of the installation table 1. The explosion-proof servo motor 2 is connected to the explosion-proof pull-rod sensor 3 through a coupling 11. An explosion-proof signal exchanger 4 is provided above the coupling 11.

[0008] The left end of the explosion-proof pull-rod sensor 3 is connected to a measuring surface floating reset spring 8, the left end of the measuring surface floating reset spring 8 is provided with a measuring rod, and the left end surface of the measuring rod is set as a measuring surface 7;

[0009] A base surface 6 is provided in the middle of the measuring rod, and the right end of the base surface 6 is connected to two measuring installation guide shafts 12. Two base surface floating reset springs 10 are provided at the right ends of the two measuring installation guide shafts 12. The two base surface floating reset springs 10 are respectively arranged on the upper and lower sides of the explosion-proof pull rod sensor 3;

[0010] The explosion-proof servo motor 2 provides power to determine the detection position of products of different sizes, and drives the measuring rod to make the measuring surface 7 contact with the measured surface first. The measuring surface floating reset spring 8 contracts to drive the explosion-proof pull rod sensor 3 to compress the detection head, and continues to move until the base surface 6 fits with the measured end surface, and automatically finds the measured end surface. The base surface floating reset spring 10 provides feedback, and the measuring surface 7 and the base surface 6 form a stable relative depth. The signal exchanger 4 transmits the data to the data acquisition system, and the deviation value of the actual size is determined by comparison. After the measurement is completed, the explosion-proof servo motor 2 is reset, and the base surface 6 and the measuring surface 7 return to their initial positions through the measuring surface floating reset spring 8 and the base surface floating reset spring 10.

[0011] Wherein, the installation table 1 is also provided with a slide rail 5 and a lead screw;

[0012] The bottom of the explosion-proof pull-rod sensor 3 is fixed in the slide rail 5, and the explosion-proof pull-rod sensor 3 is supported by the slide rail 5;

[0013] During measurement, the bottom explosion-proof servo motor 2 is connected to the screw rod through the coupling 11, and cooperates with the slide rail 5 to adjust the position of the measuring base surface 6. By giving the size of the corresponding product, the explosion-proof servo feed amount is set. The measuring surface 7 is moved forward to stick to the measured surface, and the measuring rod is compressed by continuing to move forward. When the measured end surface contacts the base surface 6, it continues to move forward, and then the floating base surface 6 and the measuring surface 7 move synchronously to form a stable relative value.

[0014] In the measurement process, the base surface 6 moves only when it contacts and compresses the measured end surface of the measured product.

[0015] Wherein, an explosion-proof proximity switch 9 is provided on the installation table 1, and the explosion-proof proximity switch 9 is arranged parallel to the slide rail 5;

[0016] The explosion-proof proximity switch 9 is used to provide an electrical limit point for the explosion-proof servo motor 2. The explosion-proof proximity switch 9 is provided with three switches on the motion path. The front end and the end are electrical limit safety points, and the middle one is the original position of the servo motor.

[0017] Wherein, the installation table 1 is also provided with a fully enclosed metal drag chain 13;

[0018] The fully enclosed metal drag chain 13 is used to manipulate the back and forth movement of the cables.

[0019] (III) Beneficial effects

[0020] The present invention proposes a mechanism for automatically measuring relative depth, which has the following beneficial effects: through the synchronous floating of the measuring surface and the base surface, it can effectively solve the problem that the positioning error caused by re-positioning of various products after replacement affects the measurement results. The measuring surface and the reference are floated synchronously, and the measured end face can be automatically found, so that the relative depth between the reference and the measuring surface will not change due to the position movement of the product during the transportation process, thereby not affecting the measurement accuracy, thereby completing the automatic relative depth measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a top view of the mechanism of the present invention;

[0022] Figure 2 It is a side view of the mechanism of the present invention;

[0023] Figure 3 It is a schematic diagram of the measurement of the mechanism of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0025] The present embodiment is a mechanism for automatically measuring relative depth, comprising: a mounting table 1, an explosion-proof servo motor 2, an explosion-proof pull-rod sensor 3, an explosion-proof signal exchanger 4, a base surface 6, a measuring surface 7, a measuring surface floating reset spring 8, a base surface floating reset spring 10, a coupling 11, and a measuring mounting guide shaft 12;

[0026] The installation table 1 is used as the installation base of the entire mechanism. The explosion-proof servo motor 2 is fixed on the right end of the installation table 1. The explosion-proof servo motor 2 is connected to the explosion-proof pull-rod sensor 3 through a coupling 11. An explosion-proof signal exchanger 4 is provided above the coupling 11.

[0027] The left end of the explosion-proof pull-rod sensor 3 is connected to a measuring surface floating reset spring 8, the left end of the measuring surface floating reset spring 8 is provided with a measuring rod, and the left end surface of the measuring rod is set as a measuring surface 7;

[0028] A base surface 6 is provided in the middle of the measuring rod, and the right end of the base surface 6 is connected to two measuring installation guide shafts 12. Two base surface floating reset springs 10 are provided at the right ends of the two measuring installation guide shafts 12. The two base surface floating reset springs 10 are respectively arranged on the upper and lower sides of the explosion-proof pull rod sensor 3;

[0029] The explosion-proof servo motor 2 provides power to determine the detection position of products of different sizes, and drives the measuring rod to make the measuring surface 7 contact with the measured surface first. The measuring surface floating reset spring 8 contracts to drive the explosion-proof pull rod sensor 3 to compress the detection head, and continues to move until the base surface 6 fits with the measured end surface, and automatically finds the measured end surface. The base surface floating reset spring 10 provides feedback, and the measuring surface 7 and the base surface 6 form a stable relative depth. The signal exchanger 4 transmits the data to the data acquisition system, and the deviation value of the actual size is determined by comparison. After the measurement is completed, the explosion-proof servo motor 2 is reset, and the base surface 6 and the measuring surface 7 return to their initial positions through the measuring surface floating reset spring 8 and the base surface floating reset spring 10.

[0030] Wherein, the installation table 1 is also provided with a slide rail 5 and a lead screw;

[0031] The bottom of the explosion-proof pull-rod sensor 3 is fixed in the slide rail 5, and the explosion-proof pull-rod sensor 3 is supported by the slide rail 5;

[0032] During measurement, the bottom explosion-proof servo motor 2 is connected to the screw rod through the coupling 11, and cooperates with the slide rail 5 to adjust the position of the measuring base surface 6. By giving the size of the corresponding product, the explosion-proof servo feed amount is set. The measuring surface 7 is moved forward to stick to the measured surface, and the measuring rod is compressed by continuing to move forward. When the measured end surface contacts the base surface 6, it continues to move forward, and then the floating base surface 6 and the measuring surface 7 move synchronously to form a stable relative value.

[0033] In the measurement process, the base surface 6 moves only when it contacts and compresses the measured end surface of the measured product.

[0034] Wherein, an explosion-proof proximity switch 9 is provided on the installation table 1, and the explosion-proof proximity switch 9 is arranged parallel to the slide rail 5;

[0035] The explosion-proof proximity switch 9 is used to provide an electrical limit point for the explosion-proof servo motor 2. The explosion-proof proximity switch 9 is provided with three switches on the motion path. The front end and the end are electrical limit safety points, and the middle one is the original position of the servo motor.

[0036] Wherein, the installation table 1 is also provided with a fully enclosed metal drag chain 13;

[0037] The fully enclosed metal drag chain 13 is used to manipulate the back and forth movement of the cables.

[0038] The guide rail 5 ensures the linear motion of the entire mechanism, and the weight of the entire measuring mechanism is pressed on the slide rail, which provides support, reduces friction, and lowers the resistance to movement. The high-precision positioning function of the slide rail can ensure that the measuring mechanism can accurately reach the predetermined position every time, thereby improving the reliability and stability of the measuring process.

[0039] The measuring assembly is fed toward the product to be measured, and the 6-base surface datum A first contacts the end face of the product to be measured. Datum A is rigidly connected to the displacement sensor to ensure that the measuring depth is the end face datum;

[0040] 2. When the measuring component is feeding toward the measured product, the measuring surface datum B contacts the medicine surface, and the datum B is rigidly connected to the telescopic rod of the displacement sensor. The difference between the moving distance of the datum B and the preset zero position of the sensor is the measuring depth.

[0041] The explosion-proof implementation form of the present invention is:

[0042] 1. For depth measurement sensors, intrinsically safe displacement sensors can be used. The electric sparks and thermal effects generated by intrinsically safe sensors under normal operation and specified fault conditions cannot ignite the specified explosive mixture.

[0043] 2. Use fireproof and explosion-proof cables for power lines, and properly route and secure them to prevent them from being damaged by external forces or sparks.

[0044] 3. The motor of the motion mechanism should be explosion-proof, and the motor housing and junction box should meet the explosion-proof requirements. The speed and torque of the motor should be reasonably selected according to the actual needs of the measuring mechanism.

[0045] 4. The connection and transmission between moving parts adopt couplings, reducers and other components to ensure the smoothness and reliability of movement. At the same time, the moving parts are well lubricated and protected to prevent sparks from friction.

[0046] 5. The measuring head is made of copper to avoid sparks after collision with the surface of the measured part.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A mechanism for automatically measuring relative depth, characterized in that: include: Installation table (1), explosion-proof servo motor (2), explosion-proof pull rod sensor (3), explosion-proof signal exchanger (4), base surface (6), measuring surface (7), measuring surface floating return spring (8), base surface floating return spring (10), coupling (11), measuring installation guide shaft (12); The mounting table (1) serves as the mounting base of the entire mechanism. The explosion-proof servo motor (2) is fixed on the right end of the mounting table (1). The explosion-proof servo motor (2) is connected to an explosion-proof pull-rod sensor (3) via a coupling (11). An explosion-proof signal exchanger (4) is provided above the coupling (11); The left end of the explosion-proof pull-rod sensor (3) is connected to a measuring surface floating reset spring (8), the left end of the measuring surface floating reset spring (8) is provided with a measuring rod, and the left end surface of the measuring rod is set as a measuring surface (7); A base surface (6) is provided in the middle of the measuring rod, the right end of the base surface (6) is connected to two measuring installation guide shafts (12), two base surface floating reset springs (10) are provided at the right ends of the two measuring installation guide shafts (12), and the two base surface floating reset springs (10) are respectively arranged on the upper and lower sides of the explosion-proof pull rod sensor (3); The explosion-proof servo motor (2) provides power to determine the detection position of products of different sizes, and drives the measuring rod to make the measuring surface (7) contact the measured surface first. The measuring surface floating reset spring (8) is contracted to drive the explosion-proof pull rod type sensor (3) detection head to be compressed, and continues to move until the base surface (6) fits the measured end surface, and automatically finds the measured end surface. The measuring surface (7) and the base surface (6) form a stable relative depth through the feedback of the base surface floating reset spring (10). The signal exchanger (4) then transmits the data to the data acquisition system, and the deviation value of the actual size is determined by comparison. After the measurement is completed, the explosion-proof servo motor (2) is reset, and the base surface (6) and the measuring surface (7) return to the initial position through the measuring surface floating reset spring (8) and the base surface floating reset spring (10).

2. The mechanism for automatically measuring relative depth according to claim 1, characterized in that: The installation table (1) is also provided with a slide rail (5) and a lead screw; The bottom of the explosion-proof pull-rod sensor (3) is fixed in the slide rail (5), and the explosion-proof pull-rod sensor (3) is supported by the slide rail (5); During measurement, the bottom explosion-proof servo motor (2) is connected to the screw rod through the coupling (11), and cooperates with the slide rail (5) to adjust the position of the measuring base surface (6). By giving the size of the corresponding product, the explosion-proof servo feed amount is set, and the measuring surface (7) is moved forward to make it stick to the measured surface, and the measuring rod is compressed by continuing to move forward. When the measured end surface and the base surface (6) are in contact, the measuring rod continues to move forward, and then the floating base surface (6) and the measuring surface (7) move synchronously to form a stable relative value.

3. The mechanism for automatically measuring relative depth according to claim 1, characterized in that: During the measurement process, movement will only occur when the base surface (6) contacts the measured end surface of the measured product and is compressed.

4. The mechanism for automatically measuring relative depth according to claim 1, characterized in that: An explosion-proof proximity switch (9) is provided on the installation table (1), and the explosion-proof proximity switch (9) is arranged parallel to the slide rail (5); An explosion-proof proximity switch (9) is used to provide an electrical limit point for the explosion-proof servo motor (2). The explosion-proof proximity switch (9) is provided with three switches on the motion path, wherein the front end and the end are electrical limit safety points, and the middle one is the original position of the servo motor.

5. The mechanism for automatically measuring relative depth according to claim 1, characterized in that: The installation table (1) is also provided with a fully enclosed metal drag chain (13); The fully enclosed metal drag chain (13) is used to manipulate the back and forth movement of the cable.

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