CN211681685U

CN211681685U - Measuring clamp of computer keyboard support

Info

Publication number: CN211681685U
Application number: CN201922282506.7U
Authority: CN
Inventors: 黄宏臻
Original assignee: GOOD VISION PRECISION INSTRUMENT CO LTD
Current assignee: GOOD VISION PRECISION INSTRUMENT CO LTD
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-10-16
Anticipated expiration: 2029-12-18

Abstract

The utility model provides a pair of measuring fixture of computer keyboard support, including test seat, magnetism clamp plate, the test seat is including carrying the thing board, it is equipped with a plurality of guide pillar through-holes to carry terminal surface under the thing board, test seat middle part is equipped with cam elevating assembly, cam elevating assembly includes first cam, second cam, connecting rod, fixes backing plate, magnet post of connecting rod upper end, first cam with second cam structure is the same, all be equipped with on first cam, the second cam with the arc wall, sliding connection has the locating piece in the arc wall, locating piece one end is fixed carry thing flange reason, be equipped with the second test area on the magnetism clamp plate, be equipped with a plurality of second test holes that link up from top to bottom on the second test area. The utility model discloses a measuring clamp for centre gripping fixed keyboard support makes it have better roughness, improves measurement accuracy.

Description

Measuring clamp of computer keyboard support

Technical Field

The utility model relates to a measuring fixture's technical field, concretely relates to measuring fixture of computer keyboard support.

Background

The keyboard support 7 is one of the important parts in the keyboard, and as shown in fig. 1-2, the keyboard support 7 has a plurality of feet 71 inside, and the keyboard support 7 is usually required to be placed in a laser detector to measure whether all the feet 71 are qualified in size. However, since the keyboard support 7 is thin, if the keyboard support 7 is directly placed on the measurement table of the laser detector, the flatness of the keyboard support 7 is poor, which brings great difficulty to the measurement, and therefore, a fixture is required for fixing the keyboard support 7, and ensuring that the keyboard support 7 has high flatness.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a computer keyboard support's measurement anchor clamps for centre gripping fixed keyboard support makes it have better roughness, improves measurement accuracy.

In order to achieve the above object, the present invention provides the following technical solutions:

a measuring clamp of a computer keyboard support comprises a test seat and a magnetic press plate positioned right above the test seat, wherein the test seat comprises a carrying plate, the upper end surface of the carrying plate is provided with a first test area, the first test area is provided with a plurality of first test holes, the lower end surface of the carrying plate is provided with a plurality of guide post through holes, the middle part of the test seat is provided with a cam lifting assembly, the cam lifting assembly comprises a first cam and a second cam which are positioned at the front end and the rear end of the test seat, a connecting rod connected between the first cam and the second cam, a base plate fixed at the upper end of the connecting rod and a plurality of magnet posts fixed at the upper end of the base plate and matched with the guide post through holes, the first cam and the second cam have the same structure, the first cam and the second cam are both provided with arc-shaped grooves, and positioning blocks are connected in the arc-shaped grooves, one end of the positioning block is fixed to the edge of the carrying plate, a second testing area is arranged on the magnetic pressing plate, and a plurality of second testing holes which are communicated up and down are formed in the second testing area.

Specifically, a hand crank is further fixed on the outer side face of the first cam and is rotatably connected with the connecting rod.

Specifically, the lower end of the object carrying plate is further connected with a plurality of guide shafts, and shaft sleeves matched with the guide shafts are fixed on the base plate.

Specifically, n positioning columns are arranged on the edge of the first testing area, n is an integer greater than or equal to 4, and n-2 positioning round holes and 2 positioning waist holes corresponding to the positioning columns are arranged on the edge of the second testing area.

Specifically, the test seat is still including fixing carry the guard plate of thing board front and back both ends downside, be equipped with the confession on the guard plate the bar hole that the connecting rod reciprocated.

Specifically, the shape of the arc-shaped groove is the same as the edge profile shape of the first cam and the second cam.

The utility model has the advantages that:

first, the utility model discloses a measuring clamp of computer keyboard support, through the cooperation of magnetic pressure plate and test seat, can the centre gripping fixed keyboard support, make it have better roughness, improve measurement accuracy;

secondly, a cam lifting assembly with a magnet column is added, and the magnetic pressing plate can have larger downward pressure by utilizing the magnetic adsorption effect of the magnet column and the magnetic pressing plate after the cam lifting assembly is lifted, so that the keyboard support is further pressed, and the smoothness of the keyboard support is ensured; after descending, the magnetic column is separated from the magnetic pressing plate by utilizing the suction force of the backing plate and the supporting force of the carrying plate, and the product and the magnetic pressing plate are protected from deformation and damage.

Drawings

Fig. 1 is a schematic structural diagram of a keyboard support.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a first three-dimensional structure diagram of the measuring fixture of the computer keyboard stand of the present invention.

Fig. 4 is a first cross-sectional view of the measuring fixture of the computer keyboard stand of the present invention.

Fig. 5 is an enlarged view of a portion B in fig. 4.

Fig. 6 is a second three-dimensional structure diagram of the measuring fixture of the computer keyboard stand of the present invention.

Fig. 7 is a second sectional view of the measuring clamp of the computer keyboard stand according to the present invention.

Fig. 8 is a rear view of the measuring clamp of the computer keyboard stand of the present invention.

Fig. 9 is a schematic structural view of the middle cam lifting assembly of the present invention.

Fig. 10 is a top view of the present invention.

Fig. 11 is a bottom view of the middle loading board of the present invention.

Fig. 12 is a top view of the magnetic pressing plate of the present invention.

The reference signs are: the test seat 1, the object carrying plate 11, the first test hole 111, the guide post through hole 112, the positioning post 113, the protection plate 12, the magnetic pressing plate 2, the second test hole 21, the positioning round hole 22, the positioning waist hole 23, the cam lifting assembly 3, the first cam 31, the arc-shaped groove 311, the second cam 32, the connecting rod 33, the backing plate 34, the magnet post 35, the positioning block 4, the crank 5, the guide shaft 61, the shaft sleeve 62, the keyboard support 7 and the support leg 71.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

Referring to FIGS. 1-12:

a measuring clamp of a computer keyboard support comprises a testing base 1 and a magnetic pressing plate 2 positioned right above the testing base 1, wherein the testing base 1 comprises a carrying plate 11, a first testing area is arranged on the upper end surface of the carrying plate 11, a plurality of first testing holes 111 are arranged on the first testing area, a plurality of guide post through holes 112 are arranged on the lower end surface of the carrying plate 11, a cam lifting assembly 3 is arranged in the middle of the testing base 1, the cam lifting assembly 3 comprises a first cam 31 and a second cam 32 which are positioned at the front end and the rear end of the testing base 1, a connecting rod 33 connected between the first cam 31 and the second cam 32, a backing plate 34 fixed at the upper end of the connecting rod 33 and a plurality of magnet posts 35 fixed at the upper end of the backing plate 34 and matched with the guide post through holes 112, the first cam 31 and the second cam 32 have the same structure, the first cam 31 and the second cam 32 are both provided with an arc-shaped groove, one end of the positioning block 4 is fixed at the edge of the carrying plate 11, in order to enable laser emitted by the upper end laser detector to pass through the magnetic pressing plate 2, a second testing area is arranged on the magnetic pressing plate 2, a plurality of second testing holes 21 which are through up and down are formed in the second testing area, the first cam 31 and the second cam 32 rotate clockwise, the magnet column 35 moves downwards, the first cam 31 and the second cam 32 rotate anticlockwise, and the magnet column 35 moves upwards.

Preferably, in order to facilitate the user to rotate the first cam 31, the outer side surface of the first cam 31 is further fixed with a hand crank 5, and the hand crank 5 is rotatably connected with the connecting rod 33.

Preferably, in order to ensure that the object carrying plate 11 does not deviate in the lifting process, the lower end of the object carrying plate 11 is further connected with a plurality of guide shafts 61, and a shaft sleeve 62 matched with the guide shafts 61 is fixed on the backing plate 34.

Preferably, n positioning columns 113 are arranged at the edge of the first test area, n is an integer greater than or equal to 4, n-2

positioning round holes

22 and 2 positioning waist holes 23 corresponding to the positioning columns 113 are arranged at the edge of the second test area, the position of the magnetic press plate 2 can be limited by the matching of the positioning columns 113 with the positioning round holes 22 and the positioning waist holes 23, generally, in order to make the positioning columns 113 more easily inserted into the positioning round holes 22, the diameter of the positioning columns 113 is designed to be slightly smaller than the aperture of the positioning round holes 22, the magnetic press plate 2 can be prevented from rotating but still can horizontally translate through a plurality of positioning round holes 22 distributed at the edge of the first test area, at this time, the functions of the 2 positioning waist holes 23 are increased, one positioning waist hole 23 can prevent the magnetic press plate 2 from moving back and forth, the other positioning waist hole 23 can prevent the magnetic press plate 2 from moving left and right, so that the magnetic press plate 2 can be, since the positioning posts 113 are located at the edge of the first testing area, the position of the keyboard support 7 is also limited, and the keyboard support 7 is prevented from being deviated.

Preferably, since the magnet columns 35 inside the test socket 1 have magnetism and a small amount of magnetic substances such as iron powder are usually contained in a production workshop, in order to prevent the magnetic substances from being adsorbed by the magnet columns 35 and affecting the normal operation of the jig, the test socket 1 further includes a protection plate 12 fixed on the lower side of the front and rear ends of the loading plate 11, and the protection plate 12 is provided with a strip-shaped hole for the connecting rod 33 to move up and down.

Preferably, the shape of the arc-shaped slot 311 is the same as the edge profile shape of the first cam 31 and the second cam 32.

The measurement operation is as follows:

placing keyboard support 7 in first test area, make stabilizer blade 71 on keyboard support 7 be located corresponding first test hole 111, push down magnetic pressure plate 2, make reference column 113 insert in corresponding location round hole 22 and location waist hole 23, the position of magnetic pressure plate 2 and keyboard support 7 has been fixed, then anticlockwise rotation crank 5, it drives magnet post 35 and shifts up to carry thing board 11, because magnet post 35 and magnetic pressure plate 2 all have magnetism, consequently magnetic pressure plate 2 receives magnet post 35 magnetic force influence to press from both sides keyboard support 7 tighter, the roughness of keyboard support 7 has been guaranteed, place whole measuring jig in laser measuring instrument at last and carry out laser scanning measurement to all stabilizer blades 71, after the measurement is accomplished, clockwise rotation crank 5, shift up magnetic pressure plate 2, take out keyboard support 7 can.

The above embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The measuring clamp of the computer keyboard support is characterized by comprising a test seat (1) and a magnetic pressing plate (2) located right above the test seat (1), wherein the test seat (1) comprises an object carrying plate (11), a first test area is arranged on the upper end face of the object carrying plate (11), a plurality of first test holes (111) are formed in the first test area, a plurality of guide post through holes (112) are formed in the lower end face of the object carrying plate (11), a cam lifting assembly (3) is arranged in the middle of the test seat (1), the cam lifting assembly (3) comprises a first cam (31) and a second cam (32) which are located at the front end and the rear end of the test seat (1), a connecting rod (33) connected between the first cam (31) and the second cam (32), a backing plate (34) fixed at the upper end of the connecting rod (33), and a plurality of columns (35) fixed at the upper end of the backing plate (34) and matched with the guide post through holes (112) The first cam (31) and the second cam (32) are identical in structure, the first cam (31) and the second cam (32) are provided with arc-shaped grooves (311), positioning blocks (4) are slidably connected in the arc-shaped grooves (311), one ends of the positioning blocks (4) are fixed to the edges of the object carrying plate (11), a second testing area is arranged on the magnetic pressing plate (2), and a plurality of second testing holes (21) which are vertically communicated are formed in the second testing area.

2. The measuring clamp of the computer keyboard bracket as claimed in claim 1, wherein a hand crank (5) is further fixed on the outer side surface of the first cam (31), and the hand crank (5) is rotatably connected with the connecting rod (33).

3. The measuring clamp of the computer keyboard support according to claim 1, wherein the lower end of the carrying plate (11) is further connected with a plurality of guide shafts (61), and a shaft sleeve (62) matched with the guide shafts (61) is fixed on the backing plate (34).

4. The measuring fixture of the computer keyboard support according to claim 1, wherein n positioning posts (113) are disposed on the edge of the first testing area, n is an integer greater than or equal to 4, and n-2 positioning round holes (22) and 2 positioning waist holes (23) corresponding to the positioning posts (113) are disposed on the edge of the second testing area.

5. The measuring clamp of the computer keyboard support according to claim 1, wherein the test base (1) further comprises a protection plate (12) fixed on the lower side of the front end and the rear end of the loading plate (11), and the protection plate (12) is provided with a strip-shaped hole for the connecting rod (33) to move up and down.

6. The measuring clamp of the computer keyboard support according to claim 1, wherein the arc-shaped slot (311) has the same shape as the edge profile of the first cam (31) and the second cam (32).