阅读说明：本技术 一种新型导线通讯机床测头 (Novel wire communication machine tool measuring head ) 是由 孙柏春 刘洋 徐信波 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种新型导线通讯机床测头,包括单元总成和柄部总成,单元总成是用于测头的精密复位及触发机构,单元总成包括测针、运动中心座、定位圆球、定位球座、外壳、接线板,单元总成中心探出的测针通过螺纹连接在运动中心座上,运动中心座径向间隔120度向外延展出三只柱销,三只柱销通过弹簧将其压在成对的三组定位圆球上,柱销通过绝缘套安装在运动中心座上,定位圆球通过绝缘垫粘接固定在定位球座上,弹簧安装在固定在外壳内的绝缘吊篮中,三只柱销和定位圆球通过弹性触点A导通在接线板上,形成三个开关串联的开关组,开关组的两端连接到所述单元总成的尾部中心触点和围绕中心触点的环形触点上；本发明提高了产品刚性、减少了密封环节,更方便接线和装配。(The invention discloses a novel wire communication machine tool measuring head, which comprises a unit assembly and a handle assembly, wherein the unit assembly is a precise resetting and triggering mechanism for the measuring head, the unit assembly comprises a measuring needle, a motion center seat, positioning balls, a positioning ball seat, a shell and a wiring board, the measuring needle extending out of the center of the unit assembly is connected on the motion center seat through threads, the motion center seat radially extends out by 120 degrees and outwards forms three pins, the three pins press the three groups of positioning balls in pair through springs, the pins are arranged on the motion center seat through insulating sleeves, the positioning balls are adhered and fixed on the positioning ball seat through insulating pads, the springs are arranged in an insulating hanging basket fixed in the shell, three pins and the positioning ball are conducted on the wiring board through the elastic contact A to form a switch group with three switches connected in series, and two ends of the switch group are connected to a tail central contact of the unit assembly and an annular contact surrounding the central contact; the invention improves the product rigidity, reduces the sealing links and is more convenient for wiring and assembling.)

1. A novel wire communication machine tool measuring head comprises a unit assembly and a handle assembly, and is characterized in that the unit assembly is a precise resetting and triggering mechanism for the measuring head, the unit assembly comprises a measuring needle (1), a motion center seat (2), positioning round balls (5), positioning ball seats (8), a shell (9) and a wiring board (11), the measuring needle (1) extending out of the center of the unit assembly is connected to the motion center seat (2) through threads, the motion center seat (2) radially extends out three pin pins (3) at intervals of 120 degrees, the three pin pins (3) are pressed on three paired positioning round balls (5) through springs (4), the pin pins (3) are installed on the motion center seat (2) through insulating sleeves (6), and the positioning round balls (5) are adhered and fixed on the positioning ball seats (8) through insulating pads (7), the spring (4) is arranged in an insulating hanging basket (10) fixed in the shell (9), three pins (3) and a positioning ball (5) are conducted on a wiring board (11) through elastic contacts A (21) to form a switch group with three switches connected in series, and two ends of the switch group are connected to a tail central contact (12) of the unit assembly and an annular contact (13) surrounding the central contact (12).

2. A novel wire communication machine tool measuring head according to claim 1, characterized in that the unit assembly housing (9) is provided with an external thread A (14) at the end, the unit assembly is provided with two layers of lower rubber sealing cover (15) and upper rubber sealing cover (16) which are provided with wrinkles at the front end, the central holes of the lower rubber sealing cover (15) and the upper rubber sealing cover (16) are sleeved on the outer circle of the movement center seat (2), the outer edge of the lower rubber sealing cover (15) is pressed on the positioning ball seat (8) through a first pressing ring (17), the first pressing ring (17) is connected with the housing (9) of the unit assembly through a thread, a sealing ring A (19) is arranged between the first pressing ring (17) and the housing (9) of the unit assembly, and the outer edge of the upper rubber sealing cover (16) is pressed on the first pressing ring (17) through a second pressing ring (18), and the second pressing ring (18) is in threaded connection with the outer shell (9) of the unit assembly, and a sealing ring B (20) is arranged between the second pressing ring (18) and the outer shell (9) of the unit assembly.

3. A novel wire communication machine tool probe according to claim 1 wherein said shank assembly comprises a fixed portion (22), an LED (23), a circuit board assembly (25), an adapter (27) and a shank assembly housing (31); the tail part of the handle assembly shell (31) is provided with a fixing part (22) for connection, the handle assembly is provided with an LED (23) for indicating the state of the measuring head, the handle assembly is provided with a waterproof joint (24) for connecting and fixing a cable, and the waterproof joint (24) is connected to the tail part or the side surface of the handle assembly shell (31).

4. A novel wire communication machine tool measuring head according to claim 1, wherein a circuit board assembly (25) for processing and outputting signals is installed in the handle assembly housing (31), the circuit board assembly (25) is made into a T-shaped structure, two elastic contacts B (26) are welded on the circuit board assembly (25) corresponding to the central contact (12) at the tail of the unit assembly and the annular contact (13) surrounding the central contact, the front end of the handle assembly housing (31) is connected with the adapter (27) through a thread, an internal thread (28) corresponding to the external thread a (14) at the tail of the unit assembly is processed in the center of the adapter (27), a locking ring (29) is installed at the front end of the handle assembly housing (31) through an external thread to compress the adapter (27), and the thread direction of the external thread B (30) at the front end of the assembly housing is screwed with the internal thread (28) of the connection adapter, The tail external threads A (14) of the unit assembly are opposite.

5. A new wire communication machine tool probe according to claim 1, characterized in that the pin (3) is mounted on the motion center base (2) by interference or adhesion through the insulating sleeve (6).

6. A new wire communication machine tool probe according to claim 1, characterized in that said insulating pad (7) is in the shape of a ring, a hemisphere, a partial strip or other point-like distribution.

7. A novel wire communications machine tool probe according to claim 2 wherein the fixing portion (22) is shaped as a shank, flange or screw.

Technical Field

The invention relates to the field of numerical control machine tools, in particular to a novel wire communication machine tool measuring head.

Background

The application of the numerical control machine tool greatly improves the machining efficiency, and has the advantages of high speed, high precision, automatic machining, direct reduction of product cost caused by high yield and improvement of product competitiveness. Along with the popularization and development of numerical control machine tools, higher requirements are put forward on the protection, stability and safety of measuring heads. Therefore, the wire communication machine tool measuring head is designed, and due to some unique designs, the manufacturing manufacturability is fully considered, and meanwhile, the requirements on the measuring head are met.

Disclosure of Invention

The invention aims to provide a novel wire communication machine tool measuring head to solve the technical problem.

In order to achieve the purpose, the invention adopts the following technical scheme:

a novel wire communication machine tool measuring head comprises a unit assembly and a handle assembly, wherein the unit assembly is a precise resetting and triggering mechanism for the measuring head, the unit assembly comprises a measuring pin, a motion center seat, a positioning ball seat, a shell and a wiring board, the measuring needle extending out of the center of the unit assembly is connected to a motion center seat through threads, the motion center seat radially extends three pins outwards at intervals of 120 degrees, the three pins press the three pins on the three groups of paired positioning balls through springs, the pin is arranged on the motion center seat through an insulating sleeve, the positioning ball is bonded and fixed on the positioning ball seat through an insulating pad, the spring is arranged in an insulating hanging basket fixed in the shell, three pins and the positioning ball are conducted on the wiring board through an elastic contact A to form a switch group with three switches connected in series, and two ends of the switch group are connected to a tail central contact of the unit assembly and an annular contact surrounding the central contact;

the processing of unit assembly shell afterbody can have external screw thread A, two-layer rubber seal cover and last rubber seal cover under having the fold of unit assembly front end installation, the centre bore cover of lower rubber seal cover and last rubber seal cover is in motion center seat excircle on, the rubber seal cover outer fringe compresses tightly on the location ball seat through clamping ring one down, clamping ring one with the shell of unit assembly passes through threaded connection, clamping ring one with install sealing washer A between the shell of unit assembly, it compresses tightly on clamping ring one through clamping ring two to go up the rubber seal cover outer fringe, clamping ring two with the shell of unit assembly passes through threaded connection, clamping ring two with installation sealing washer B between the shell of unit assembly.

The handle assembly comprises a fixed part, an LED, a circuit board assembly and an adapter handle assembly shell; the tail part of the handle assembly shell is provided with a fixed part for connection, the handle assembly is provided with an LED (23) for indicating the state of a measuring head, the handle assembly is provided with a waterproof joint for connecting and fixing a cable, the waterproof joint is connected with the tail part or the side surface of the handle assembly shell, a circuit board assembly for processing and outputting signals is arranged in the handle assembly shell, the circuit board assembly is manufactured into a T-shaped structure, the circuit board assembly is welded with two elastic contacts B corresponding to a central contact of the tail part of the unit assembly and an annular contact surrounding the central contact, the front end of the handle assembly shell is connected with a switching seat through threads, the center of the switching seat is provided with an internal thread corresponding to an external thread A at the tail part of the unit assembly, and the front end of the handle assembly shell is provided with a locking ring through the external thread to tightly press the switching seat, the thread turning direction of the external thread B at the front end of the assembly shell is opposite to the internal thread of the connecting adapter and the external thread A at the tail part of the unit assembly.

The pin is arranged on the motion center seat in an interference or bonding mode through an insulating sleeve.

The shape of the insulating pad is annular, hemispherical, partially long-strip-shaped or other shapes distributed in a point shape.

The fixing portion is shaped as a straight shank, flange or thread.

Compared with the prior art, the invention has the following advantages: 1. the tail of the unit assembly shell is provided with threads for connecting the handle assembly, and the connecting threads and the unit assembly shell are of an integral structure, so that the product rigidity is improved, and the sealing links are reduced.

2. The double-layer sealing cover and related parts are combined to form two independent sealing planes, and the structure is simple and reliable.

3. Install insulating pad additional between location ball and the location ball seat, this insulating pad be independent part, have considerable thickness, be different from traditional whole insulating material and make location ball seat and the metal location ball seat through surface treatment, accomplished insulating nature and rigid compromise.

The circuit board assembly with the T-shaped structure makes full use of space and is more convenient to wire and assemble.

5. After the reverse thread locking ring is installed in the handle part assembly, other parts can be effectively prevented from loosening when the measuring head unit assembly is disassembled and assembled.

6. The tail part of the handle assembly shell is directly processed with parts for connection, such as a straight handle and a flange, so that the product is more stable and reliable to mount.

Drawings

FIG. 1 is a schematic diagram of a cell assembly structure.

FIG. 2 is a schematic view of a handle assembly construction.

Fig. 3 is a schematic diagram of the trigger mechanism.

In the figure: 1. the measuring pin comprises a measuring pin body, 2, a motion center seat, 3, a pin, 4, a spring, 5, a positioning ball, 6, an insulating sleeve, 7, an insulating pad, 8, a positioning ball seat, 9, a shell, 10, an insulating basket, 11, a wiring board, 12, a center contact, 13, an annular contact, 14, external threads A, 15, a lower rubber sealing cover 16, an upper rubber sealing cover, 17, a pressing ring I, 18, a pressing ring II, 19, a sealing ring A, 20, a sealing ring B, 21, an elastic contact A, 22, a fixing part, 23, an LED, 24, a waterproof joint, 25, a circuit board assembly, 26, an elastic contact B, 27, a switching seat, 28, internal threads, 29, a locking ring, 30, external threads B, 31 and a handle assembly shell.

Detailed Description

The invention is explained in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1-3, a novel wire communication machine tool measuring head comprises a unit assembly and a handle assembly, and is characterized in that the unit assembly is a precise resetting and triggering mechanism for the measuring head, the unit assembly comprises a measuring pin 1, a motion center seat 2, a positioning ball 5, a positioning ball seat 8, a housing 9 and a wiring board 11, the measuring pin 1 extending out of the center of the unit assembly is connected to the motion center seat 2 through threads, the motion center seat 2 radially extends three pins 3 outwards at intervals of 120 degrees, the three pins 3 are pressed on three paired groups (6) of positioning balls 5 through springs 4, and the pins 3 are installed on the motion center seat 2 through an insulating sleeve 6 in an interference or bonding manner. The positioning ball 5 is fixedly bonded on a positioning ball seat 8 through an insulating pad 7, the spring 4 is arranged in an insulating basket 10 fixed in a shell 9, three pins 3 and the positioning ball 5 are conducted on a wiring board 11 through an elastic contact A21 to form a switch group with three switches connected in series, and two ends of the switch group are connected to a tail central contact 12 of the unit assembly and an annular contact 13 surrounding the central contact 12;

the tail of the unit assembly outer shell 9 is processed to be provided with external threads A14, two layers of lower rubber sealing covers 15 and upper rubber sealing covers 16 with folds are arranged at the front end of the unit assembly, central holes of the lower rubber sealing covers 15 and the upper rubber sealing covers 16 are sleeved on the excircle of the movement central seat 2, the outer edges of the lower rubber sealing covers 15 are tightly pressed on the positioning ball seat 8 through a first pressing ring 17, the first pressing ring 17 is in threaded connection with the unit assembly outer shell 9, a sealing ring A19 is arranged between the first pressing ring 17 and the unit assembly outer shell 9, the outer edges of the upper rubber sealing covers 16 are tightly pressed on the first pressing ring 17 through a second pressing ring 18, the second pressing ring 18 is in threaded connection with the unit assembly outer shell 9, and a sealing ring B20 is arranged between the second pressing ring 18 and the unit assembly outer shell 9.

The handle assembly comprises a fixed portion 22, an LED23, a circuit board assembly 25, an adapter 27 handle assembly housing 31; the tail part of the handle assembly shell 31 is provided with a fixing part 22 for connection, the handle assembly is provided with an LED23 for indicating the state of a measuring head, the handle assembly is provided with a waterproof joint 24 for connecting and fixing a cable, the waterproof joint 24 is connected with the tail part or the side surface of the handle assembly shell 31, a circuit board assembly 25 for processing and outputting signals is installed in the handle assembly shell 31, the circuit board assembly 25 is manufactured into a T-shaped structure, the circuit board assembly 25 is welded with two elastic contacts B26 corresponding to the central contact 12 of the tail part of the unit assembly and the annular contact 13 surrounding the central contact, the front end of the handle assembly shell 31 is connected with an adapter 27 through threads, the center of the adapter 27 is provided with an internal thread 28 corresponding to the external thread A14 of the tail part of the unit assembly, and the front end of the handle assembly shell 31 is provided with a locking ring 29 through the external thread to tightly press the adapter 27, the thread direction of the external thread B30 at the front end of the assembly shell is opposite to the internal thread 28 of the connecting adapter and the external thread A14 at the tail part of the unit assembly. The shape of the insulating pad 7 is annular, hemispherical, partially long-strip-shaped or point-shaped. The fixing portion 22 is shaped as a straight shank, a flange or a screw thread.

The tail of the unit assembly shell is provided with threads for connecting the handle assembly, and the connecting threads and the unit assembly shell are of an integral structure, so that the product rigidity is improved, and the sealing links are reduced.

The double-layer sealing cover and related parts are combined to form two independent sealing planes, and the structure is simple and reliable. Install insulating pad additional between location ball and the location ball seat, this insulating pad be independent part, have considerable thickness, be different from traditional whole insulating material and make location ball seat and the metal location ball seat through surface treatment, accomplished insulating nature and rigid compromise. The circuit board assembly with the T-shaped structure makes full use of space and is more convenient to wire and assemble. After the reverse thread locking ring is installed in the handle part assembly, other parts can be effectively prevented from loosening when the measuring head unit assembly is disassembled and assembled. The tail part of the handle assembly shell is directly processed with parts for connection, such as a straight handle and a flange, so that the product is more stable and reliable to mount.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.