Non-contact height measuring device and dicing machine

Abstract

The present invention relates to the technical field of workshop equipment, and discloses a non-contact height measurement device and a dicing machine, comprising: a height measurement transmitting unit for transmitting a height measurement signal; a height measurement receiving unit for receiving a height measurement signal; the height measurement transmitting unit comprises: a first sealed box, a first shielding component and a transmitting component; the height measurement receiving unit comprises: a second sealed box, a second shielding component and a receiving component. When the device is not working, the first shielding component and the second shielding component are respectively used to shield the transmitting hole and the receiving hole, so that the transmitting component and the receiving component are in a closed environment, avoiding the transmitting component and the receiving component from being contaminated by water mist and residue generated during the dicing process. Therefore, when the device is working, there is no need to clean and dry the transmitting component and the receiving component in advance, which is conducive to simplifying the non-contact height measurement operation and saving water resources.

Description

Technical Field

[0001] The present invention relates to the technical field of workshop equipment, and in particular to a non-contact height measuring device and a dicing machine. Background Art

[0002] Since non-contact height measurement devices are often used in some component processing environments, the environment is full of material residues, etc., and the material residues and water mist in the environment often adhere to the detection surface of the non-contact height measurement device. In order to ensure the accuracy of the height measurement of the device, the non-contact height measurement device needs to be cleaned with water and blown dry before use before height measurement.

[0003] A known non-contact height measuring device includes a horizontal push mechanism mounting block and a non-contact height measuring component respectively mounted on a dicing machine mounting plate. A horizontal push mechanism is mounted on the horizontal push mechanism mounting block. The power output end of the horizontal push mechanism is connected to a protective cover with a side opening. The protective cover can be horizontally pushed relative to the dicing machine mounting plate to realize the opening and closing of the protective cover. However, there is relative movement between the side of the non-contact height measuring mounting plate and the protective cover, and a gap is inevitably present between the two. The water mist and cutting residues generated during the dicing process will contaminate the sensor detection surface through the gap. In order to ensure the normal operation of the sensor, the sensor detection surface needs to be cleaned with water flow before each height measurement, and then its surface is dried with air flow, which makes the non-contact height measurement operation cumbersome and causes additional waste of water resources during each non-contact height measurement process. Summary of the Invention

[0004] The purpose of the present invention is to provide a non-contact height measuring device and a dicing machine to simplify the non-contact height measuring operation and help save water resources.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A non-contact height measuring device, comprising:

[0007] Altimeter transmitting unit, used for transmitting altitude measurement signal;

[0008] an altitude measurement receiving unit, configured to receive the altitude measurement signal;

[0009] The height measurement transmitting unit includes: a first sealed box, a transmitting assembly and a first shielding assembly arranged inside the first sealed box; the first sealed box is provided with a transmitting hole for the height measurement signal to pass through; the first shielding assembly is used to shield the transmitting hole after the height measurement is completed;

[0010] The height measurement receiving unit includes: a second sealed box and a receiving assembly and a second shielding assembly arranged inside the second sealed box; the second sealed box is provided with a receiving hole for the height measurement signal to pass through; the second shielding assembly is used to shield the receiving hole after the height measurement is completed;

[0011] A height measurement area is provided between the height measurement transmitting unit and the height measurement receiving unit for placing the object to be measured.

[0012] In one embodiment, the first shielding assembly includes: a first driving device, a first shielding block, and a first elastic reset device; the first sealed box is provided with a first guide groove, the first shielding block is disposed in the guide groove, the first driving device is configured to contact one end of the first shielding block, and the other end of the first shielding block is fixedly connected to the first sealed box via the first elastic reset device;

[0013] The second shielding assembly includes: a second driving device, a second shielding block and a second elastic reset device. A second guide groove is provided in the second sealed box, and the second shielding block is provided in the second guide groove. The second driving device is used to contact one end of the second shielding block, and the other end of the second shielding block is fixedly connected to the second sealed box through the second elastic reset device.

[0014] In one embodiment, the first elastic reset device and the second elastic reset device are springs.

[0015] In one embodiment, the first driving device is a first cylinder, and the second driving device is a second cylinder.

[0016] In one embodiment, a first signal channel is provided on the first blocking block, and a second signal channel is provided on the second blocking block.

[0017] In one embodiment, the altimeter transmitter unit further includes a first jet assembly, the first jet assembly including a first gas source, a first gas valve, and a first gas pipe, the first gas source is connected to the first gas valve, and the first gas valve is connected to the first sealed box via the first gas pipe;

[0018] The height measurement receiving unit also includes a second jet assembly, which includes a second gas source, a second gas valve and a second gas pipe. The second gas source is connected to the second gas valve, and the second gas valve is connected to the second sealed box through the second gas pipe.

[0019] In one embodiment, the transmitting component is a transmitting end of a through-beam sensor, and the receiving component is a receiving end of the through-beam sensor.

[0020] In one embodiment, the transmitting end of the through-beam sensor is connected to the sensor amplifier via an optical fiber, and a PU air tube is sheathed on the outside of the optical fiber.

[0021] In one embodiment, the transmitting end of the through-beam sensor includes a sensor detection surface of the transmitting end and a transmitting end body; a first chamber and a second chamber are provided inside the first sealed box, the first chamber and the second chamber are separated by a partition, the sensor detection surface of the transmitting end is provided in the first chamber, the first jet assembly is connected to the first chamber; and the transmitting end body is provided in the second chamber;

[0022] The receiving end of the through-beam sensor includes a sensor detection surface and a receiving end body; a third chamber and a fourth chamber are arranged inside the second sealed box, and the third chamber and the fourth chamber are separated by a partition, the sensor detection surface of the receiving end is arranged in the third chamber, and the second jet assembly is connected to the third chamber; the receiving end body is arranged in the fourth chamber.

[0023] The present invention also provides a dicing machine, comprising the non-contact height measuring device mentioned above.

[0024] According to the records of the above scheme, the present invention discloses the following technical effects:

[0025] The present invention provides a first sealed box and a second sealed box, opens a transmitting hole on the first sealed box, and opens a receiving hole on the second sealed box for the height measurement signal to pass through. When the device is not working, the first shielding component and the second shielding component are respectively used to shield the transmitting hole and the receiving hole, so that the transmitting component and the receiving component are in a closed environment, avoiding the transmitting component and the receiving component from being contaminated by water mist and residue generated during the workpiece processing process. Therefore, when the device is working, there is no need to clean and dry the transmitting component and the receiving component in advance, which is conducive to simplifying the non-contact height measurement operation and saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of a non-contact height measurement device provided in an embodiment of this specification;

[0028] Figure 2 A cross-sectional view of a first shielding assembly provided in an embodiment of this specification;

[0029] Figure 3 A schematic diagram of the structure of the first jetting assembly provided in the embodiment of this specification;

[0030] Figure 4 Provided for the embodiments of this specification Figure 3 Middle A is a partial enlarged view;

[0031] Among them, 1-first closed box, 11-launching assembly connector, 12-first jet assembly, 121-first jet cavity, 122-first air guide groove, 13-first shielding assembly connector, 131-first cylinder, 132-first push rod, 133-first shielding block, 134-first guide groove, 135-first elastic reset device, 2-second closed box, 21-receiving assembly connector, 22-second jet assembly, 23-second shielding assembly connector, 24-receiving hole, 3-altitude measurement area, 4-altitude measurement detection hole. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figures 1 to 4As shown, the embodiment of this specification discloses a non-contact height measurement device, including: a height measurement transmitting unit for transmitting a height measurement signal; a height measurement receiving unit for receiving a height measurement signal; the height measurement transmitting unit includes: a first sealed box 1 and a transmitting component and a first shielding component arranged inside the first sealed box 1; a transmitting hole is opened on the first sealed box 1 for the height measurement signal to pass through; the first shielding component is used to shield the transmitting hole after the height measurement is completed, so that the transmitting component is in a closed environment; the height measurement receiving unit includes: a second sealed box 2 and a receiving component and a second shielding component arranged inside the second sealed box 2; a receiving hole 24 is opened on the second sealed box 2 for the height measurement signal to pass through; the second shielding component is used to shield the receiving hole 24 after the height measurement is completed, so that the receiving component is in a closed environment; a height measurement area 3 is provided between the height measurement transmitting unit and the height measurement receiving unit for placing the object to be measured. Among them, the first sealed box 1 and the second sealed box 2 both include a box body, a box cover and a sealing ring, and the box body and the box cover are connected by a sealing ring. During use, when the device is not working, the first shielding component and the second shielding component are respectively used to shield the transmitting hole and the receiving hole 24, so that the transmitting component and the receiving component are in a closed environment to prevent the transmitting component and the receiving component from being contaminated by water mist and residues generated during the workpiece processing. Therefore, when the device is working, there is no need to clean and dry the transmitting component and the receiving component in advance. Therefore, such a setting is conducive to simplifying the non-contact height measurement operation and saving water resources.

[0034] like Figure 2As shown, the first shielding assembly includes: a first driving device, a first shielding block 133, and a first elastic reset device 135. A first guide slot 134 is provided in the first sealed box 1, and the first shielding block 133 is disposed in the first guide slot 134. The first guide slot 134 is used to define the movement path of the first shielding block 133, so that the movement path of the first shielding block 133 is consistent with the movement path of the first driving device. The first driving device is used to contact one end of the first shielding block 133, and the other end of the first shielding block 133 is fixedly connected to the first sealed box 1 via the first elastic reset device 135. The first driving device is used to push the first shielding block 133 along the first guide slot 134 toward the first elastic reset device 135, thereby exposing the launch aperture. When the first driving device is not extended, the first shielding block 133 blocks the launch aperture. The function of the first elastic reset device 135 is: when the first driving device retracts, the first elastic reset device 135 drives the first blocking block 133 to return to its initial position, that is, the first blocking block 133 is in the position of blocking the launch hole; at the same time, the setting of the first elastic reset device 135 can also play the role of buffering the first driving device. The second shielding assembly includes: a second driving device, a second blocking block and a second elastic reset device. A second guide groove is provided in the second sealed box 2. The second blocking block is provided in the second guide groove. The second driving device is used to contact one end of the second blocking block. The other end of the second blocking block is fixedly connected to the second sealed box 2 through the second elastic reset device; the second driving device is used to push the second blocking block to move along the second guide groove toward the direction of the second elastic reset device, so that the receiving hole 24 is exposed. The second shielding assembly has the same structural composition as the first shielding assembly, and the functions performed by the corresponding components are also the same, which will not be repeated here.

[0035] In the embodiment of this specification, the first elastic reset device 135 and the second elastic reset device are both springs, and other devices with elastic reset function can also be selected according to actual needs.

[0036] In the embodiment of this specification, the first driving device is the first cylinder 131, and the second driving device is the second cylinder. A hydraulic cylinder, a linear motor, etc. can be selected according to actual needs. The first shielding component and the second shielding component are connected to the compressed air through the first shielding component joint 13 and the second shielding component joint 23 respectively.

[0037] A first signal channel is provided on the first blocking block 133, and a second signal channel is provided on the second blocking block. The first signal channel and the second signal channel can be provided in the form of notches. Taking the first cylinder 131 as an example, when the first push rod 132 of the first cylinder 131 is extended, the first signal channel is connected to the launch hole. Alternatively, when the first push rod 132 of the first cylinder 131 is extended, the first blocking block 133 blocks the launch hole, and when the first push rod 132 of the first cylinder 131 is retracted, the first signal channel is connected to the launch hole, thereby controlling whether the first signal channel and the launch hole are connected.

[0038] like Figure 3 and Figure 4 As shown, the height measurement transmitting unit also includes a first jet assembly 12, which includes a first gas source, a first gas valve and a first gas pipeline. The first gas source is connected to the first gas valve, and the first gas valve is connected to the first closed box 1 through the first gas pipeline. The gas in the first gas source is input into the first closed box 1, so that the interior of the first closed box 1 is in a positive pressure state, thereby preventing the transmitting assembly from being exposed to water mist and cutting residues. The first gas source can be a compressed gas source on site, and the first gas source is turned on and off by the first gas valve. For example, the first gas valve is used to cut off the compressed gas after the equipment is shut down. Body source; the height measurement receiving unit also includes a second jet component 22, the second jet component 22 includes a second gas source, a second gas valve and a second gas pipe, the second gas source is connected to the second gas valve, the second gas valve is connected to the second closed box 2 through the second gas pipe, and the gas in the second gas source is input into the second closed box 2, so that the interior of the second closed box 2 is in a positive pressure state, avoiding the receiving component from being exposed to water mist and cutting residues. The second gas source can be a compressed gas source, and the second gas source is turned on and off by the second gas valve. For example, the second gas valve is used to cut off the compressed gas source after the equipment is shut down. Therefore, when the transmitting hole and the receiving hole 24 are exposed and the height measurement is performed, the transmitting hole will spray gas to the outside of the first closed box 1, and the receiving hole 24 will spray gas to the outside of the second closed box 2 to blow away the residue and water mist. This arrangement can not only prevent the residue and water mist diffused in the environment from entering the first closed box 1 and the second closed box 2 through the transmitting hole and the receiving hole 24 to contaminate the transmitting component and the receiving component, but also prevent the residue and water mist from affecting the height measurement signal. That is, the ejected gas jet will push the water mist on the detection beam path away, eliminating the influence of the scattering caused by the water mist on the height measurement signal, which is beneficial to improving the accuracy of the height measurement. The first jet assembly 12 also includes a first jet cavity 121 and a first air guide groove 122 (such as Figure 4(As shown), taking the jetting process of the first jet assembly 12 as an example, specifically, gas enters the first jet cavity 121 through the connector of the first jet assembly 12, passes through the first gas guide groove 122 and the first signal channel on the first blocking block 133, and is ultimately ejected from the emission hole. The first gas guide groove 122 and the height detection hole 4 are both provided on the first sealed box 1. The end of the height detection hole 4 closest to the first signal channel is connected to the first signal channel. The height detection hole 4 is used to detect the passage of a light beam. After passing through the height detection hole and the first signal channel, the detection light beam is emitted from the emission hole. The end of the height detection hole 4 away from the first signal channel is sealed by the sensor detection surface of the emission end to prevent gas from being ejected from the end of the height detection hole 4 away from the first signal channel, thereby reducing gas consumption.

[0039] In the embodiments of this specification, the transmitting component is the transmitting end of the through-beam sensor, and the receiving component is the receiving end of the through-beam sensor.

[0040] The transmitting end of the through-beam sensor is connected to the sensor amplifier via an optical fiber. The optical fiber exits through the transmitting assembly connector 11 and is sheathed with a PU air tube. This helps prevent damage to the optical fiber caused by excessive bending and also protects the device from water mist. Similarly, the optical fiber at the receiving end of the through-beam sensor exits through the receiving assembly connector 21 and is sheathed with a PU air tube, which also helps protect the device from water mist.

[0041] The transmitting end of the through-beam sensor includes a sensor detection surface of the transmitting end and a transmitting end body; a first chamber and a second chamber are provided inside the first sealed box 1, the first chamber and the second chamber are separated by a partition, the first air guide groove 122 and the height detection hole 4 are both provided on the partition between the first chamber and the second chamber, the sensor detection surface of the transmitting end is provided in the first chamber, and the first air injection assembly 12 is connected to the first chamber to provide a positive pressure environment for the first chamber; the transmitting end body is provided in the second chamber;

[0042] The receiving end of the through-beam sensor includes a sensor detection surface and a receiving end body. A third chamber and a fourth chamber are provided within the second sealed box 2, which are separated by a partition. The sensor detection surface of the receiving end is provided in the third chamber, and the second jet assembly 22 is connected to the third chamber to provide a positive pressure environment for the third chamber. The receiving end body is provided in the fourth chamber. By configuring the first sealed box 1 as the first chamber and the second chamber, and configuring the second sealed box 2 as the third chamber and the fourth chamber, and only inflating the first and third chambers, the space required for inflation is reduced compared to inflating the entire first sealed box 1 and the second sealed box 2, which helps to reduce the amount of inflation and lower costs.

[0043] The present invention also provides a dicing machine, comprising the non-contact height measuring device mentioned above.

[0044] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0045] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A non-contact height measuring device, characterized in that: include: Altimeter transmitting unit, used for transmitting altitude measurement signal; an altitude measurement receiving unit, configured to receive the altitude measurement signal; The height measurement transmitting unit includes: a first sealed box, a transmitting assembly and a first shielding assembly arranged inside the first sealed box; the first sealed box is provided with a transmitting hole for the height measurement signal to pass through; the first shielding assembly is used to shield the transmitting hole after the height measurement is completed; The height measurement receiving unit includes: a second sealed box and a receiving assembly and a second shielding assembly arranged inside the second sealed box; the second sealed box is provided with a receiving hole for the height measurement signal to pass through; the second shielding assembly is used to shield the receiving hole after the height measurement is completed; A height measurement area is provided between the height measurement transmitting unit and the height measurement receiving unit for placing the object to be measured; When the emitting hole and the receiving hole are exposed and height measurement is performed, the emitting hole will spray gas outside the first sealed box, and the receiving hole will spray gas outside the second sealed box to blow away residue and water mist.

2. The non-contact height measuring device according to claim 1, characterized in that: The first shielding assembly includes: a first driving device, a first shielding block and a first elastic reset device. A first guide groove is provided in the first sealed box, and the first shielding block is disposed in the first guide groove. The first driving device is configured to contact one end of the first shielding block, and the other end of the first shielding block is fixedly connected to the first sealed box via the first elastic reset device. The second shielding assembly includes: a second driving device, a second shielding block and a second elastic reset device. A second guide groove is provided in the second sealed box, and the second shielding block is provided in the second guide groove. The second driving device is used to contact one end of the second shielding block, and the other end of the second shielding block is fixedly connected to the second sealed box through the second elastic reset device.

3. The non-contact height measuring device according to claim 2, characterized in that: The first elastic reset device and the second elastic reset device are both springs.

4. The non-contact height measuring device according to claim 2, characterized in that: The first driving device is a first cylinder, and the second driving device is a second cylinder.

5. The non-contact height measuring device according to claim 2, characterized in that: The first shielding block is provided with a first signal channel; the second shielding block is provided with a second signal channel.

6. The non-contact height measuring device according to claim 1, characterized in that: The altimeter transmitter unit further includes a first jet assembly, which includes a first gas source, a first gas valve, and a first gas pipe. The first gas source is connected to the first gas valve, and the first gas valve is connected to the first sealed box through the first gas pipe. The height measurement receiving unit also includes a second jet assembly, which includes a second gas source, a second gas valve and a second gas pipe. The second gas source is connected to the second gas valve, and the second gas valve is connected to the second sealed box through the second gas pipe.

7. The non-contact height measuring device according to claim 6, characterized in that: The transmitting component is a transmitting end of the through-beam sensor, and the receiving component is a receiving end of the through-beam sensor.

8. The non-contact height measuring device according to claim 7, characterized in that: The transmitting end of the through-beam sensor is connected to the sensor amplifier via an optical fiber, and a PU air tube is sheathed outside the optical fiber.

9. The non-contact height measuring device according to claim 7, characterized in that: The transmitting end of the through-beam sensor includes a sensor detection surface of the transmitting end and a transmitting end body; a first chamber and a second chamber are provided inside the first sealed box, the first chamber and the second chamber are separated by a partition, the sensor detection surface of the transmitting end is provided in the first chamber, and the first jet assembly is connected to the first chamber; the transmitting end body is provided in the second chamber; The receiving end of the through-beam sensor includes a sensor detection surface and a receiving end body; a third chamber and a fourth chamber are arranged inside the second sealed box, and the third chamber and the fourth chamber are separated by a partition, the sensor detection surface of the receiving end is arranged in the third chamber, and the second jet assembly is connected to the third chamber; the receiving end body is arranged in the fourth chamber.

10. A dicing machine, characterized in that: The non-contact height measuring device comprises the non-contact height measuring device according to any one of claims 1 to 9.

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