Miniature cable communication measuring head

Abstract

The utility model discloses a miniature cable communication measuring head, which belongs to the technical field of numerical control machine tool edge searching alignment tools and comprises a measuring needle, the bottom of the measuring needle is in threaded connection with a measuring needle seat, three insulating layers are adhered to the measuring needle seat, positioning blocks are adhered to the three insulating layers, and the three insulating layers and the three positioning blocks are arranged in a circumferential array. According to the utility model, the measuring head, the positioning block, the central ball and the measuring head handle are arranged, the tile-shaped positioning block and the central ball are arranged in the measuring head, so that the measuring head is easy to process and stable in performance, and the measuring head handle can be replaced according to various working conditions, so that the applicability of the measuring head is improved; due to the fact that the measuring head and the control circuit structure are designed in a separated mode, the fault rate is reduced, convenience is provided for later maintenance, and due to the fact that rubber is arranged outside the measuring head, the liquid protection level of the measuring head is improved, and meanwhile impact of cutting liquid on the measuring head is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of edge finding and alignment tools for numerical control machine tools, and particularly relates to a micro cable communication probe head. Background Art

[0002] Micro numerical control engraving machines are widely used in the fields of jewelry engraving and denture engraving. Their alignment work requires a dedicated measuring and aligning tool.

[0003] The cable communication probe head has the characteristics of reliable signal transmission, easy installation, simple use, and low price. Considering the working conditions of the numerical control engraving machine, it is most practical to select a cable communication probe head. Due to the limited space of the micro numerical control machine tool itself and the extremely small spindle stroke, only a micro probe head has practical use. Therefore, a micro cable communication probe head is needed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a micro cable communication probe head to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A micro cable communication probe head includes a probe needle. The bottom of the probe needle is threadedly connected with a probe needle seat. Three insulating layers are adhered to the probe needle seat. Three positioning blocks are adhered to the three insulating layers. The three insulating layers and the three positioning blocks are arranged in a circumferential array. Two positioning balls are lapped on each of the three positioning blocks. The six positioning balls are divided into three groups, and the three groups of positioning balls are installed at the bottom of the upper unit seat in a circumferential array. The bottom of the probe needle seat is lapped with a center ball. The center ball is connected to the top of a spring seat. The bottom of the spring seat is connected to the main body through a spring. A wiring board is connected inside the main body. The wiring board is connected to a controller through a wire. The wiring board is connected to the positioning block. The main body is externally threadedly connected with an outer sealing cover. An internal pressure ring is threadedly connected inside the outer sealing cover. The internal pressure ring laps on the upper unit seat. The bottom of the upper unit seat laps on the main body. An internal sealing cover laps on the internal pressure ring. An upper cover laps on the internal sealing cover. The upper cover laps inside the outer sealing cover. The internal sealing cover is sleeved outside the probe needle seat. The outer sealing cover is sleeved outside the probe needle seat.

[0006] As a preferred implementation manner, the positioning block is made of a conductive material.

[0007] As a preferred implementation manner, the shape of the positioning block is set as a tile shape, a semi-circular shape or a triangular shape.

[0008] As a preferred implementation manner, the wiring board is sleeved outside the spring.

[0009] As a preferred implementation manner, the controller is connected to the numerical control machine tool.

[0010] As a preferred embodiment, the main body is lapped with the probe shank through a sealing plug, and the probe shank is connected to the main body by a plurality of screws.

[0011] As a preferred embodiment, the probe is provided with rubber outside.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, by providing a probe, a positioning block, a center ball and a probe shank, since the probe is provided with a tile-shaped positioning block and a center ball inside, it is not only easy to process, but also has stable performance. Since the probe shank can be replaced, the probe can replace the probe shank according to various working conditions, improving the applicability of the probe. Since the probe and the control circuit structure are designed separately, it not only reduces the failure rate, but also provides convenience for later maintenance. Since the probe is provided with rubber outside, while improving the liquid protection level of the probe, it effectively reduces the impact of the cutting fluid on the probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a front three-dimensional sectional structural schematic diagram of the present utility model;

[0016] Figure 3 is a side three-dimensional sectional structural schematic diagram of the present utility model;

[0017] Figure 4 is a front structural schematic diagram of the positioning block of the present utility model;

[0018] Figure 5 is a top structural schematic diagram of the positioning block of the present utility model;

[0019] Figure 6 is a structural schematic diagram of the control circuit of the present utility model.

[0020] In the figure: 1, probe needle; 2, probe needle seat; 3, positioning ball; 4, positioning block; 5, wiring board; 6, spring; 7, spring seat; 8, center ball; 9, upper unit seat; 10, upper cover; 11, outer sealing cover; 12, main body; 13, sealing plug; 14, probe shank; 15, wire; 16, controller; 17, insulating layer; 18, retaining ring; 19, inner sealing cover; 20, screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following further describes the present utility model in conjunction with embodiments.

[0022] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Under the premise of the concept of the present utility model, simple improvements to the method of the present utility model all belong to the scope protected by the present utility model.

[0023] Please refer to Figures 1-6 , the present utility model provides a micro cable communication probe head, which includes a probe pin 1. The bottom of the probe pin 1 is threadedly connected with a probe pin seat 2. Three insulating layers 17 are bonded on the probe pin seat 2. A positioning block 4 is bonded on the three insulating layers 17. The three insulating layers 17 and the three positioning blocks 4 are arranged in a circumferential array. Two positioning balls 3 are lapped on each of the three positioning blocks 4. The six positioning balls 3 are divided into three groups, and the three groups of positioning balls 3 are installed at the bottom of the unit upper seat 9 in a circumferential array. The bottom of the probe pin seat 2 is lapped with a center ball 8. The center ball 8 is connected to the top of a spring seat 7. The bottom of the spring seat 7 is connected to a main body 12 through a spring 6. A wiring board 5 is connected inside the main body 12. The wiring board 5 is connected to the controller 16 through a wire 15. The wiring board 5 is connected to the positioning block 4. The main body 12 is externally threadedly connected with an outer sealing cover 11. By setting the outer sealing cover 11, since the end face of the outer sealing cover 11 is made into a large protrusion, only the part of the probe pin 1 for measurement is exposed on the large protrusion of the end face of the outer sealing cover 11;

[0024] An inner pressing ring 18 is internally threadedly connected to the outer sealing cover 11. A unit upper seat 9 is lapped inside the inner pressing ring 18. The bottom of the unit upper seat 9 is lapped with the main body 12. An inner sealing cover 19 is lapped on the inner pressing ring 18. An upper cover 10 is lapped on the inner sealing cover 19. The upper cover 10 is lapped inside the outer sealing cover 11. The inner sealing cover 19 is sleeved outside the probe pin seat 2. The outer sealing cover 11 is sleeved outside the probe pin seat 2. By setting the outer sealing cover 11, the inner pressing ring 18, the main body 12 and the upper cover 10, the connection seams between the outer sealing cover 11 and the inner pressing ring 18 and between the upper cover 10 and the inner pressing ring 18 are completely wrapped;

[0025] The positioning block 4 is made of a conductive material. The shape of the positioning block 4 is set as a tile shape, a semicircle shape or a triangle shape. The wiring board 5 is sleeved outside the spring 6. The controller 16 is connected to a numerical control machine tool. The main body 12 is lapped with a probe head handle 14 through a sealing plug 13. The probe head handle 14 is connected to the main body 12 through a plurality of screws 20. By setting the sealing plug 13, the sealing plug 13 can seal the gap between the probe head handle 14 and the main body 12;

[0026] There is rubber outside the probe head. By setting the probe head, since there is rubber outside the probe head, while improving the liquid protection level of the probe head, the impact of cutting fluid on the probe head is effectively reduced.

[0027] Working principle and usage process of the present utility model: When the probe needs to be used, when the probe contacts an external object, the probe drives the probe seat 2 to move downward under the action of an external force. The downward-moving probe seat 2 drives the positioning block 4 to move downward. The downward-moving positioning block 4 reduces its acting force on the positioning ball 3. The electrical signals detected by the cooperation between the positioning block 4 and the positioning ball 3 are transmitted to the controller 16 through the wire 15, and then the controller 16 accesses the processed signal to the numerical control machine tool.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A miniature cable communication probe, comprising a probe (1), characterized in that: The bottom of the measuring needle (1) is threadedly connected to a measuring needle seat (2); three insulating layers (17) are bonded to the measuring needle seat (2); positioning blocks (4) are bonded to the three insulating layers (17); the three insulating layers (17) and the three positioning blocks (4) are arranged in a circular array; two positioning balls (3) are overlapped on the three positioning blocks (4); the six positioning balls (3) are divided into three groups, and the three groups of positioning balls (3) are installed in a circular array on the bottom of the unit upper seat (9); a center ball (8) is overlapped on the bottom of the measuring needle seat (2); the center ball (8) is connected to the top of the spring seat (7); the bottom of the spring seat (7) is connected to the main body (12) through a spring (6); a wiring board ( 5), the wiring board (5) is connected to the controller (16) through a wire (15), the wiring board (5) is connected to the positioning block (4), the main body (12) is externally threadedly connected to an outer sealing cover (11), the outer sealing cover (11) is internally threadedly connected to a pressure ring (18), a unit upper seat (9) is overlapped in the pressure ring (18), the bottom of the unit upper seat (9) is overlapped with the main body (12), an inner sealing cover (19) is overlapped on the pressure ring (18), an upper cover (10) is overlapped on the inner sealing cover (19), the upper cover (10) is overlapped in the outer sealing cover (11), the inner sealing cover (19) is sleeved on the outside of the measuring needle seat (2), and the outer sealing cover (11) is sleeved on the outside of the measuring needle seat (2).

2. A miniature cable communication probe according to claim 1, characterized in that: The positioning block (4) is made of a conductive material.

3. A miniature cable communication probe according to claim 1, characterized in that: The shape of the positioning block (4) is set to be tile-shaped, semicircular or triangular.

4. A miniature cable communication probe according to claim 1, characterized in that: The wiring board (5) is sleeved outside the spring (6).

5. The miniature cable communication probe according to claim 1, characterized in that: The controller (16) is connected to the numerically controlled machine tool.

6. A miniature cable communication probe according to claim 1, characterized in that: The main body (12) is overlapped with the probe handle (14) via a sealing plug (13), and the probe handle (14) is connected to the main body (12) via a plurality of screws (20).

7. A miniature cable communication probe according to claim 1, characterized in that: The measuring head is provided with rubber outside.

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