Pipe cap structure of laser sensor and laser sensor thereof

Abstract

The utility model discloses a pipe cap structure of a laser sensor and the laser sensor thereof. The pipe cap structure comprises a pipe cap, a supporting plate and a lens, the supporting plate is arranged in the pipe cap, an opening is formed in the top face of the pipe cap, one end of the supporting plate is connected with the inner wall of the pipe cap, a containing groove is formed between the supporting plate and the top face of the pipe cap, and the lens flows into the containing groove in a semi-molten state. After the lens flows into the containing groove to be condensed, the lens, the pipe cap and the supporting plate are fixed into a whole. According to the utility model, the lens flows into the accommodating groove formed by the pipe cap and the supporting plate in a semi-molten state, so that the lens can be combined and fixed with the pipe cap and the supporting plate into a whole after being condensed, the combination of the lens, the pipe cap and the supporting plate is firmer, the stability of lens installation is effectively improved, and the problem of lens loosening is avoided; and the detection accuracy during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a tube cap structure of a laser sensor and the laser sensor thereof. Background Art

[0002] Laser sensor is a new type of measuring instrument, which has advantages including non-contact long-distance measurement, fast speed, high accuracy, large range, strong resistance to light and electrical interference, etc. It is based on the characteristics of laser beams and can usually provide high-precision and non-contact measurement, suitable for various application fields. The cap part of the laser sensor is an important part of the laser sensor. The general structure is that the top surface of the cap is provided with an opening, and a filter is provided in the cap corresponding to the opening. The filter and the cap form an embedded space, and the lens is embedded in the embedded space.

[0003] However, the above combination method must use a filter as a base, which has low bonding firmness and the problem of lens loosening, affecting the accuracy of detection. In addition, the filter set in the above manner is prone to shaking or displacement during use, further affecting the accuracy of detection. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a tube cap structure of a laser sensor and the laser sensor thereof.

[0005] The technical solution adopted by the utility model to solve its technical problems is: constructing a tube cap structure of a laser sensor, including a tube cap, a support plate and a lens; the support plate is arranged inside the tube cap, the top surface of the tube cap is provided with an opening, one end of the support plate is connected to the inner wall of the tube cap, a receiving groove is formed between the support plate and the top surface of the tube cap, the lens flows into the receiving groove in a semi-molten state, and the lens is fixed to the tube cap and the support plate as a whole after flowing into the receiving groove and condensing.

[0006] Preferably, at least one first positioning hole is provided on the top surface of the tube cap, and the support plate is provided with a support positioning protrusion corresponding to the first positioning hole.

[0007] Preferably, at least one second positioning hole is provided on the top surface of the tube cap, and the second positioning hole is correspondingly arranged at the top of the accommodating groove, and the lens partially enters the second positioning hole when flowing into the accommodating groove in a semi-molten state.

[0008] Preferably, the tube cap structure further includes a filter, the filter is arranged inside the tube cap, the filter is embedded in the receiving groove, and the lens is arranged above the filter.

[0009] Preferably, the filter is made of glass material or silica gel material.

[0010] Preferably, the lens is made of silicone material.

[0011] Preferably, the tube cap is made of metal material.

[0012] A laser sensor, wherein the laser sensor applies the tube cap structure of any one of the laser sensors mentioned above, and the laser sensor comprises a shell, a processing circuit, a laser emitter and the tube cap structure; the tube cap structure is arranged on the top of the laser sensor, the processing circuit and the laser emitter are arranged inside the shell, the laser emitter is arranged on a side close to the tube cap structure, the processing circuit is arranged on a side of the laser emitter away from the tube cap structure, and the processing circuit is connected to the laser emitter.

[0013] The implementation of the utility model has the following beneficial effects: the utility model allows the lens to flow into the receiving groove formed by the tube cap and the support plate in a semi-molten state, so that the lens can be fixed to the tube cap and the support plate as a whole after condensation, and the combination of the three is more firm, which effectively improves the stability of the lens installation, avoids the problem of the lens loosening, and improves the accuracy of detection during use.

[0014] The utility model can further limit the filter by setting a first positioning hole corresponding to the support plate on the tube cap and a supporting positioning protrusion that engages with the first positioning hole through the setting of the support plate, thereby avoiding radial movement or shaking of the filter and improving the accuracy of detection.

[0015] The utility model can also provide a second positioning hole on the tube cap so that the filter can further enter the second positioning hole when flowing into the accommodating groove in a semi-molten state. After cooling and forming, the filter can be further limited by the second positioning hole to further avoid radial movement or shaking of the filter and improve the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 It is a schematic cross-sectional view of the structure of the first embodiment of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of the structure of the second embodiment of the present utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the structure of the third embodiment of the present invention. Figure 1 ;

[0020] Figure 4 This is a schematic cross-sectional view of the structure of the third embodiment of the present invention. Figure 2 ;

[0021] Figure 5 This is a cross-sectional schematic diagram of the structure of the first embodiment of the utility model with a filter added;

[0022] Figure 6 This is a cross-sectional schematic diagram of the structure of the second embodiment of the present utility model with a filter added;

[0023] Figure 7 This is a cross-sectional view of the structure of the third embodiment of the present invention with a filter added. Figure 1 ;

[0024] Figure 8 This is a cross-sectional view of the structure of the third embodiment of the present invention with a filter added. Figure 2 .

[0025] Explanation of the reference numerals: 1 - tube cap; 2 - support plate; 3 - lens; 4 - receiving groove; 5 - first positioning hole; 6 - second positioning hole; 21 - support positioning protrusion; 7 - filter. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in specific directions, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0028] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0029] Embodiment 1:

[0030] See also Figure 1 The utility model shows a tube cap structure of a laser sensor, including a tube cap 1, a support plate 2 and a lens 3; the support plate 2 is arranged inside the tube cap 1, the top surface of the tube cap 1 is provided with an opening, one end of the support plate 2 is connected to the inner wall of the tube cap 1, and a receiving groove 4 is formed between the support plate 2 and the top surface of the tube cap 1, and the lens 3 flows into the receiving groove 4 in a semi-molten state. After the lens 3 flows into the receiving groove 4 and condenses, it is fixed to the tube cap 1 and the support plate 2 as a whole.

[0031] In this embodiment, the support plate 2 is used to form a receiving groove 4 inside the tube cap 1; the tube cap 1 is an important component of the machine tool sensor, which is used to stably transmit the optical signal; the lens 3 is generally a convex mirror, and the lens 3 plays a key role in the laser sensor in focusing the light beam, reducing loss, controlling the direction, improving the measurement accuracy and optimizing the sensor performance; in this embodiment, the lens 3 is in a semi-molten state during production, so it will flow into the receiving groove 4, and after condensation, the lens 3 is fixed into a whole with the tube cap 1 and the support plate 2, making the combination of the three more firm.

[0032] In this embodiment, the support plate 2 and the inner wall of the pipe cap 1 may be fixed by screws or buckles, or may be fixed by welding.

[0033] Embodiment 2:

[0034] This embodiment is based on the first embodiment, and further improves the structure of the pipe cap 1, as shown in the attached Figure 2 As shown, at least one first positioning hole 5 is provided on the top surface of the pipe cap 1 , and a supporting positioning protrusion 21 is provided on the support plate 2 corresponding to the first positioning hole 5 .

[0035] In this embodiment, the first positioning hole 5 can cooperate with the corresponding position of the support plate 2, thereby pre-fixing the tube cap 1 and the support plate 2, improving the stability of the support plate 2, and limiting the filter by supporting the positioning protrusion 21.

[0036] Embodiment three:

[0037] This embodiment is based on the first or second embodiment, and further improves the structure of the pipe cap 1. Figure 3-4 As shown, at least one second positioning hole 6 is provided on the top surface of the tube cap 1 , and the second positioning hole 6 is correspondingly arranged at the top of the accommodating groove 4 , and the lens 3 partially enters the second positioning hole 6 when flowing into the accommodating groove 4 in a semi-molten state.

[0038] In this embodiment, the second positioning hole 6 is provided so that when the lens 3 is fused, a portion of the lens 3 is embedded in the second positioning hole 6, thereby achieving better positioning.

[0039] Embodiment 4:

[0040] This embodiment is based on any one of the above embodiments 1 to 3, and further improves the structure, and sets the following Figure 5-8 As shown, the tube cap structure further includes a filter 7 , which is disposed inside the tube cap 1 , embedded in the receiving groove 4 , and a lens 3 is disposed above the filter 7 .

[0041] Furthermore, during assembly, a filter 7 is added to the support plate 2. The filter 7 can be pre-fixed with the support plate 2 before the lens 3 is integrated, which makes assembly more convenient.

[0042] In the above embodiment, the filter 7 is made of glass material or silica gel material.

[0043] In the above embodiment, the lens 3 is made of silicone material.

[0044] In the above embodiment, the pipe cap 1 is made of metal material.

[0045] Embodiment five:

[0046] This embodiment provides a laser sensor, wherein the laser sensor applies the tube cap structure of any one of the laser sensors in the above-mentioned embodiments 1 to 4, and the laser sensor includes a shell, a processing circuit, a laser emitter and a tube cap structure; the tube cap structure is arranged on the top of the laser sensor, the processing circuit and the laser emitter are arranged inside the shell, the laser emitter is arranged on a side close to the tube cap structure, the processing circuit is arranged on a side of the laser emitter away from the tube cap structure, and the processing circuit is connected to the laser emitter.

[0047] The processing circuit includes a signal processing circuit, a power supply circuit, a processing chip, etc. In the present application, the processing circuit can adopt the existing technology, which is not described in detail here. In addition, the laser transmitter can also adopt the existing technology, and its specific structure and principle are not described in detail here.

[0048] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A tube cap structure of a laser sensor, characterized in that: It includes a tube cap, a support plate and a lens; the support plate is arranged inside the tube cap, the top surface of the tube cap is provided with an opening, one end of the support plate is connected to the inner wall of the tube cap, a receiving groove is formed between the support plate and the top surface of the tube cap, the lens flows into the receiving groove in a semi-molten state, and the lens is fixed to the tube cap and the support plate as a whole after flowing into the receiving groove and condensing.

2. The cap structure of a laser sensor according to claim 1, characterized in that: The top surface of the tube cap is provided with at least one first positioning hole, and the support plate is provided with a support positioning protrusion corresponding to the first positioning hole.

3. The cap structure of a laser sensor according to claim 1, characterized in that: The top surface of the tube cap is provided with at least one second positioning hole, and the second positioning hole is correspondingly arranged at the top of the containing groove. When the lens flows into the containing groove in a semi-molten state, part of the lens enters the second positioning hole.

4. The cap structure of a laser sensor according to claim 1, characterized in that: The tube cap structure also includes a filter, which is arranged inside the tube cap and embedded in the receiving groove. The lens is arranged above the filter.

5. The cap structure of a laser sensor according to claim 4, characterized in that: The filter is made of glass material or silica gel material.

6. The cap structure of a laser sensor according to claim 1, characterized in that: The lens is made of silicone material.

7. The cap structure of a laser sensor according to claim 1, characterized in that: The pipe cap is made of metal material.

8. A laser sensor, characterized in that: The laser sensor applies the tube cap structure of the laser sensor described in any one of claims 1 to 7 above, and the laser sensor includes a shell, a processing circuit, a laser emitter and the tube cap structure; the tube cap structure is arranged on the top of the laser sensor, the processing circuit and the laser emitter are arranged inside the shell, the laser emitter is arranged on a side close to the tube cap structure, the processing circuit is arranged on a side of the laser emitter away from the tube cap structure, and the processing circuit is connected to the laser emitter.

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