CN214893175U

CN214893175U - Horn bracket copper contact height measurement gauge

Info

Publication number: CN214893175U
Application number: CN202120722839.1U
Authority: CN
Inventors: 周传明; 朱迅; 张世锋
Original assignee: Ante Metal Forming Shanghai Co Ltd
Current assignee: Ante Metal Forming Shanghai Co Ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-11-26
Anticipated expiration: 2031-04-09

Abstract

The utility model discloses a loudspeaker support copper contact height measurement examines utensil, include: the device comprises a bottom plate, a cylinder, a connecting plate, a pressing block, a spring and a displacement sensor; the air cylinder is positioned above the bottom plate, the connecting plate is connected to the air cylinder, and the air cylinder drives the connecting plate to move up and down; the pressing block is arranged below the connecting plate, the spring is arranged between the pressing block and the connecting plate, and the pressing block is connected with the connecting plate through the spring; the displacement sensors are arranged on the connecting plate, and the number of the displacement sensors is consistent with that of the copper contacts. In this way, the utility model discloses simple structure, it is with low costs, drive displacement sensor through cylinder drive connecting plate and move down to contacting the copper contact, measure the height of a plurality of copper contacts on the same horn bracket, require lowly to operating personnel's technical ability, application scope is extensive.

Description

Horn bracket copper contact height measurement gauge

Technical Field

The utility model relates to a height measurement technical field especially relates to a horn bracket copper contact height measurement examines utensil.

Background

The horn support copper contact is the key part that the connecting circuit plays the role of switching when pressing and ringing the horn, and the horn support usually has 3-4 copper contacts, distributes at the support periphery to guarantee that when pressing the horn support optional position in the steering wheel, all there is the contact can the switch-on circuit, make loudspeaker all can be pressed and rung. When the copper contact is too high, the copper contact and the circuit are easy to be short-circuited, so that the loudspeaker is mistakenly sounded, and normal driving is influenced; the copper contact is too low, so that the copper contact cannot be connected with a circuit when the bracket is pressed, the loudspeaker does not sound, and the driving safety is seriously influenced. And to achieve a good horn ringing effect, the height dimension of the copper contact on the bracket needs to be kept within a small fluctuation range, namely, the tolerance band of the height dimension of the copper contact is small. Therefore, the height of each copper contact on the bracket needs to be strictly controlled, the height of the copper contact on each bracket needs to be completely detected during production, parts with unqualified copper contact heights are eliminated, and the unqualified parts cannot flow into an assembly line to cause unnecessary loss. There is a need for a method that can quickly and efficiently fully detect the height of the horn support copper contacts.

The existing horn bracket contact height detection mainly uses methods such as height gauge measurement, three-coordinate measurement and the like. Height gauge measurement: the horn bracket parts are placed on a smooth marble platform, then the height of each contact is measured by a height gauge, and then whether the parts are qualified or not is judged. Go-no-go gauge examines utensil and measures: the horn support part is fixed on a checking fixture, and then a pass-stop gauge is used for checking the clearance between each copper contact and the checking fixture respectively to indirectly judge whether the part is qualified. Measuring three coordinates; the horn bracket parts are fixed on a three-coordinate measuring machine for automatic point taking measurement.

Although the above methods can effectively measure the height of the contact, none of them can well meet the actual production requirements.

Height gauge measurement: the requirement on operators is high, the operators need to be skilled to operate the height gauges, each copper contact needs to be detected respectively, the measuring speed is low, and the efficiency is not high; and the on-line detection of production cannot be realized by using a marble platform.

Go-no-go gauge examines utensil and measures: without actual measurement values, the specific size state of the copper contact cannot be known, and the copper contact height is easy to be misjudged by using a go-no go gauge when approaching the limit size, and the contact is easy to scratch/scratch when the go-no go gauge passes.

Three-coordinate measurement: the detection equipment is expensive, has high detection precision, low detection speed and high use cost, and is only suitable for first and last pieces and random inspection.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a horn bracket copper contact height measurement examines utensil, can measure the height of a plurality of copper contacts on the same horn bracket, and is low to operating personnel's technical requirement, and application scope is extensive.

In order to achieve the above object, the technical solution of the present invention is:

the utility model provides a utensil is examined in high measurement of loudspeaker support copper contact, includes: the device comprises a bottom plate, a cylinder, a connecting plate, a pressing block, a spring and a displacement sensor; the air cylinder is positioned above the bottom plate, the connecting plate is connected to the air cylinder, and the air cylinder drives the connecting plate to move up and down; the pressing block is arranged below the connecting plate, the spring is arranged between the pressing block and the connecting plate, and the pressing block is connected with the connecting plate through the spring; the displacement sensors are arranged on the connecting plate, and the number of the displacement sensors is consistent with that of the copper contacts.

Preferably, the device also comprises a support frame, wherein the support frame is arranged on the bottom plate, and the air cylinder is arranged on the support frame.

Preferably, the side wall of the support frame is provided with a slide rail, the connecting plate is connected with the support frame through the slide rail, and the connecting plate is connected with the support frame in a sliding manner.

Preferably, the limiting assembly comprises an upper limiting block and a lower limiting block, the upper limiting block is arranged on the connecting plate, the lower limiting block is arranged on the bottom plate, and the upper limiting block and the lower limiting block are located on the same vertical line.

Preferably, the marking device further comprises a marking assembly, the marking assembly is arranged on the connecting plate and comprises a marking cylinder and a marking pen, and the marking pen is connected to the marking cylinder.

Preferably, the connecting plate further comprises cylinder buffers, the cylinder buffers are symmetrically arranged on two sides of the cylinder, and the cylinder buffers are connected with the connecting plate.

Preferably, the bottom plate is provided with positioning blocks which are distributed in a triangular shape.

Preferably, the device further comprises a proximity switch, and the proximity switch is arranged on the bottom plate.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:

the utility model provides a horn bracket copper contact height measurement examines utensil, simple structure, it is with low costs, drive displacement sensor through cylinder drive connecting plate and move down to contacting the copper contact, measure the height of a plurality of copper contacts on the same horn bracket, require lowly to operating personnel's skill, application scope is extensive.

Drawings

Fig. 1 is the utility model relates to a horn bracket copper contact height measurement examines structural schematic diagram.

Description of reference numerals: the device comprises a bottom plate 1, a cylinder 2, a connecting plate 3, a pressing block 4, a spring 5, a displacement sensor 6, a support frame 7, a sliding rail 71, an upper limiting block 801, a lower limiting block 802, a marking cylinder 901, a marking pen 902, a cylinder buffer 10, a positioning block 11 and a proximity switch 12.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the drawings, the height measurement gauge for the copper contact of the horn bracket comprises: bottom plate 1, cylinder 2, connecting plate 3, compact heap 4, spring 5 and displacement sensor 6. The cylinder 2 is located the top of bottom plate 1, and for providing firm support basis for cylinder 2, this measurement is examined utensil and is still included support frame 7, and support frame 7 sets up on bottom plate 1, and cylinder 2 sets up on support frame 7.

Connecting plate 3 is connected on cylinder 2, and cylinder 2 drive connecting plate 3 reciprocates. In order to improve the stability in the process that the connecting plate 3 moves up and down, the side wall of the support frame 7 is provided with a sliding rail 71, the connecting plate 3 is connected with the support frame 7 through the sliding rail 71, and the connecting plate 3 is connected with the support frame 7 in a sliding manner. Through the setting of slide rail 71, play the guide effect in the in-process that connecting plate 3 reciprocated to improve the stability of connecting plate 3 in the removal process.

In order to better drive the connecting plate 3 through the air cylinder 2, the measuring and checking fixture further comprises air cylinder buffers 10, the air cylinder buffers 10 are symmetrically arranged on two sides of the air cylinder 2, and the air cylinder buffers 10 are connected with the connecting plate 3. The cylinder buffer 10 can assist the cylinder 2, so that the measurement precision can be effectively ensured.

The bottom plate 1 is provided with positioning blocks 11, and the positioning blocks 11 are distributed in a triangular shape. The workpiece is placed on the bottom plate 1 and positioned between the positioning blocks 11, and the workpiece is positioned in the horizontal direction through the positioning blocks 11. The compact heap 4 sets up in the below of connecting plate 3, and spring 5 sets up between compact heap 4 and connecting plate 3, and compact heap 4 passes through spring 5 and is connected with connecting plate 3. After the connecting plate 3 moves downwards, the pressing block 4 is in contact with a product, and the workpiece is positioned in the vertical direction through the pressing block 4.

The workpiece is placed on the bottom plate 1, and the air cylinder 2 judges whether to drive the connecting plate 3 to move downwards according to whether the workpiece is on the bottom plate 1. The measuring and checking fixture can further comprise a proximity switch 12, wherein the proximity switch 12 is arranged on the bottom plate 1, and whether a workpiece to be detected exists on the bottom plate 1 or not is judged through the proximity switch 12.

The measuring and checking fixture further comprises a limiting assembly, wherein the limiting assembly comprises an upper limiting block 801 and a lower limiting block 802, the upper limiting block 801 is arranged on the connecting plate 3, the lower limiting block 802 is arranged on the bottom plate 1, and the upper limiting block 801 and the lower limiting block 802 are located on the same vertical line. When the upper limit block 801 moves downwards along with the connecting plate 3 to be abutted to the lower limit block 802, the pressing block 4 presses the workpiece, and the spring 5 is in a compressed state. The arrangement of the limiting assembly can effectively avoid the damage to the workpiece and the displacement sensor 6 caused by the overlarge downward movement stroke of the cylinder 2.

The displacement sensors 6 are arranged on the connecting plate 3, the number of the displacement sensors 6 is consistent with that of the copper contacts, the displacement sensors 6 are located above the copper contacts, and one displacement sensor 6 measures the height of one copper contact.

When the height measured by the displacement sensor 6 exceeds a preset standard value range, namely unqualified workpieces appear, the unqualified workpieces can be marked, so that an operator or a subsequent process can visually and clearly distinguish the unqualified workpieces. Therefore, the measuring and checking fixture further comprises a marking assembly, the marking assembly is arranged on the connecting plate 3 and comprises a marking cylinder 901 and a marking pen 902, and the marking pen 902 is connected to the marking cylinder 901. The marking pen 902 moves up and down under the driving of the marking cylinder 901, and when an unqualified workpiece appears, the marking pen 902 moves down to mark a point on the workpiece.

In the actual measurement process, after the proximity switch 12 senses that the workpiece to be measured is placed on the bottom plate 1, the air cylinder 2 drives the connecting plate 3 to move downwards, and the connecting plate 3 vertically moves downwards under the guidance of the sliding rails 71 on the two sides until the upper limiting block 801 is contacted with the lower limiting block 802 and then stops moving downwards. At the moment, the spring 5 is in a compressed state, and the workpiece is pressed and fixed by the pressing block 4 through the counterforce of the spring 5. Meanwhile, the displacement sensors 6 are in contact with copper contacts on the horn bracket and generate displacement, and the displacement value of each displacement sensor 6 is the height value of the copper contact. And comparing the displacement value measured by the displacement sensor 6 with a preset standard value range, and when the displacement value exceeds the standard value range, marking the workpiece as a defective product, wherein the marking pen 902 is driven by the marking cylinder 901 to move downwards to mark the workpiece as a spot and mark the workpiece as the defective product.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a utensil is examined in high measurement of loudspeaker support copper contact which characterized in that includes: the device comprises a bottom plate, a cylinder, a connecting plate, a pressing block, a spring and a displacement sensor; the air cylinder is positioned above the bottom plate, the connecting plate is connected to the air cylinder, and the air cylinder drives the connecting plate to move up and down; the pressing block is arranged below the connecting plate, the spring is arranged between the pressing block and the connecting plate, and the pressing block is connected with the connecting plate through the spring; the displacement sensors are arranged on the connecting plate, and the number of the displacement sensors is consistent with that of the copper contacts.

2. The horn bracket copper contact height measurement gauge according to claim 1, wherein: the support frame is arranged on the bottom plate, and the air cylinder is arranged on the support frame.

3. The horn bracket copper contact height measurement gauge according to claim 2, wherein: the side wall of the support frame is provided with a slide rail, the connecting plate is connected with the support frame through the slide rail, and the connecting plate is connected with the support frame in a sliding mode.

4. The horn bracket copper contact height measurement gauge according to claim 1, wherein: the upper limiting block and the lower limiting block are arranged on the connecting plate, and the upper limiting block and the lower limiting block are located on the same vertical line.

5. The horn bracket copper contact height measurement gauge according to claim 1, wherein: still include the mark subassembly, the mark subassembly sets up on the connecting plate, the mark subassembly includes mark cylinder and marker pen, marker pen connects on the mark cylinder.

6. The horn bracket copper contact height measurement gauge according to claim 1, wherein: the connecting plate is characterized by further comprising cylinder buffers, wherein the cylinder buffers are symmetrically arranged on two sides of the cylinder, and the cylinder buffers are connected with the connecting plate.

7. The horn bracket copper contact height measurement gauge according to claim 1, wherein: the bottom plate is provided with positioning blocks which are distributed in a triangular shape.

8. The horn bracket copper contact height measurement gauge according to claim 1, wherein: the device also comprises a proximity switch, and the proximity switch is arranged on the bottom plate.