CN210670829U

CN210670829U - SMT printing jig

Info

Publication number: CN210670829U
Application number: CN201921339745.5U
Authority: CN
Inventors: 郑荣刚; 刘延锋; 潘可
Original assignee: Xuchang Yuteng Electronic Technology Co Ltd
Current assignee: Xuchang Yuteng Electronic Technology Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-06-02
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a SMT printing jig, comprising a base plate, the bottom plate upside is equipped with the standing groove, riser of bottom plate upside four corners difference fixed connection, wherein two the first guide arm of fixed connection between the riser, another two fixed connection second guide arm between the riser, first guide arm and second guide arm parallel arrangement, the first slider of sliding connection on the first guide arm, the sliding connection second slider on the second guide arm, be equipped with clamping device between first slider and the second slider. The utility model discloses a two splint press from both sides tight electronic component, remove the sliding plate, under the relative motion of first spring and second spring, can adjust electronic component's position, the removal of the first slider of cooperation and second slider, correspond the position of placing electronic component on the circuit board, and position adjustment is convenient, and the electronic component of being convenient for aims at the welding point, improves welding quality.

Description

SMT printing jig

Technical Field

The utility model relates to a circuit board printing jig technical field especially relates to SMT printing jig.

Background

When a printed circuit board is processed, the printed circuit board is usually placed on a carrier, solder paste is printed on a position of the printed circuit board where an electronic element needs to be welded, the electronic element is placed on a corresponding position on the printed circuit board, and finally the printed circuit board with the electronic element is welded by a welding machine, so that the solder paste is melted and adhered to pins of the electronic element and pads of the printed circuit board at a high temperature, and an electric connection fixing effect is achieved.

In the prior art, for example, a printed circuit board positioning jig with a patent application number of 201820233787.X comprises a jig tray and a gland; the middle part of the jig tray is provided with a placing groove for placing a printed circuit board, the periphery of the placing groove is provided with a plurality of pressing buckles for pressing the printed circuit board in the placing groove, the bottom of the placing groove is provided with a window which is communicated with the placing groove, and the window is used for contacting pins to be welded of components in the printed circuit board with soldering tin; the gland is arranged right above the jig tray, a pressing device is arranged at the bottom of the gland, and the pressing device is used for pressing the printed circuit board in the placing groove.

When the jig is used, the position of the electronic element cannot be adjusted, and the electronic element is not aligned with the welding point, so that poor welding can be caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the SMT printing jig who proposes to solve the problem that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the SMT printing jig comprises a bottom plate, wherein a placing groove is formed in the upper side of the bottom plate, four corners of the upper side of the bottom plate are respectively fixedly connected with a vertical plate, a first guide rod is fixedly connected between the two vertical plates, a second guide rod is fixedly connected between the other two vertical plates, the first guide rod and the second guide rod are arranged in parallel, the first guide rod is connected with a first sliding block in a sliding mode, the second guide rod is connected with a second sliding block in a sliding mode, and a clamping device is arranged between the first sliding block and the second sliding block;

clamping device includes two parallel arrangement's guiding axle, two guiding axle fixed connection is between first slider and second slider, two splint of sliding connection on the guiding axle, two form between the splint and press from both sides tight passageway, every splint are equipped with two first slide opening, two the guiding axle passes in by the first slide opening that corresponds, two first springs of fixed connection between the splint that are close to first slider and the first slider, every the guiding axle passes in by the first spring that corresponds, two second springs of fixed connection between the splint that are close to the second slider and the second slider, every the guiding axle passes in by the second spring that corresponds.

Preferably, a sliding plate is fixedly connected to the upper side of the clamping plate close to the second sliding block, the bottom of the sliding plate is fixedly connected to a third sliding block, a sliding groove is formed in the upper side of the second sliding block, and the third sliding block is slidably connected to the sliding groove.

Preferably, the cross-section of the third slider is of an inverted T shape, the sliding groove is matched with the third slider, an avoiding groove is formed in the bottom of the sliding groove, a threaded hole is formed in the middle of the third slider, a threaded hole is connected with a screw rod in a threaded manner, the lower end of the screw rod extends into the avoiding groove, and the upper end of the screw rod penetrates through an avoiding hole in the sliding plate and is fixedly connected with the cross rod at the end.

Preferably, one end of the upper side of the sliding plate, which is far away from the second sliding block, is fixedly connected with the stop block.

Preferably, second slider middle part is equipped with locking device, locking device includes the block rubber, block rubber upside fixed connection pull rod, second slider bottom is equipped with the recess, fixed connection supporting spring between block rubber and the recess tank bottom, the pull rod passes in by supporting spring, second slider upside is equipped with the second slide opening of intercommunication recess, the pull rod passes and rather than sliding connection in by the second slide opening, pull rod outer lane fixed connection fixture block, second slide opening inner wall is equipped with the draw-in groove, fixture block and draw-in groove looks adaptation.

Preferably, the upper end of the pull rod is provided with a boss.

Preferably, one side of the placing groove is of an open structure, and the other side, opposite to the placing groove, of the placing groove is provided with an open groove.

The utility model has the advantages that: the utility model provides a SMT printing jig, pull the sliding plate through the dog and outwards remove, two splint synchronous motion, along with the sliding plate further removes, keep away from the splint stop displacement of sliding plate, and another splint continue to remove, the interval just pulls open between two splint like this, a for put into electronic component, after pressing from both sides tight electronic component, the sliding plate moves back, under the relative motion of first spring and second spring, can adjust electronic component's position, the removal of first slider of cooperation and second slider, place corresponding position on the circuit board with electronic component correspondence, position adjustment is convenient, the electronic component of being convenient for aims at the welding point, improve welding quality.

Drawings

Fig. 1 is a schematic diagram of the basic structure of the present invention;

FIG. 2 is an enlarged view of a portion E of FIG. 1;

fig. 3 is a front view of the present invention;

fig. 4 is a partial enlarged view of fig. 3 at F;

3 fig. 3 5 3 is 3 a 3 sectional 3 view 3 a 3- 3 a 3 in 3 fig. 3 4 3. 3

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in FIGS. 1-5, the SMT printing apparatus provided by the present invention comprises a bottom plate 11, a placement groove 12 is disposed on the upper side of the bottom plate 11, one side of the placement groove 12 is open, an open slot 9 is disposed on the opposite side of the placement groove 12 for facilitating pushing a circuit board from one side and pushing the circuit board out through the open slot 9 after welding, four corners of the upper side of the bottom plate 11 are respectively and fixedly connected with a vertical plate 13, wherein a first guide bar 14 is fixedly connected between two vertical plates 13, a second guide bar 15 is fixedly connected between the other two vertical plates 13, the first guide bar 14 is parallel to the second guide bar 15, the first guide bar 14 is slidably connected with a first slider 2, the second guide bar 15 is slidably connected with a second slider 3, a clamping device 4 is disposed between the first slider 2 and the second slider 3, the clamping device 4 comprises two guide shafts 41 disposed in parallel, the two guide shafts 41 are fixedly connected between the first slider 2 and the second slider, the guide shaft 41 is slidably connected with two clamping plates 42, a clamping channel is formed between the two clamping plates 42, the clamping channel is used for placing electronic components after being opened, each clamping plate 42 is provided with two first sliding holes, the two guide shafts 41 penetrate through the corresponding first sliding holes, the clamping plates 42 can slide along the guide shafts 41, two first springs 43 are fixedly connected between the clamping plates 42 close to the first sliding blocks 2 and the first sliding blocks 2, each guide shaft 41 penetrates through the corresponding first springs 43, two second springs 44 are fixedly connected between the clamping plates 42 close to the second sliding blocks 3 and the second sliding blocks 3, each guide shaft 41 penetrates through the corresponding second springs 44, a sliding plate 45 is fixedly connected to the upper side of the clamping plate 42 close to the second sliding blocks 3, the bottom of the sliding plate 45 is fixedly connected with a third sliding block 46, a sliding groove 47 is arranged on the upper side of the second sliding blocks 3, the third sliding block 46 is slidably connected in the sliding groove 47, the section of the third sliding block 46 is inverted T-shaped, the sliding groove 47 is matched with the third sliding block 46, an avoiding groove 48 is arranged at the bottom of the sliding groove 47, a threaded hole is arranged in the middle of the third sliding block 46, a screw 49 is connected with the threaded hole in the threaded hole, the lower end of the screw 49 extends into the avoiding groove 48, the upper end of the screw 49 penetrates through the avoiding hole in the sliding plate 45 and is fixedly connected with the cross rod 5 at the end, a stop block 6 is fixedly connected with one end of the upper side of the sliding plate 45 far away from the second sliding block 3, after the screw 49 is unscrewed during clamping, the third sliding block 46 can slide in the sliding groove 47, the sliding plate 45 is pulled by the stop block 6 to move outwards, the two clamping plates 42 synchronously move, the clamping plate 42 far away from the sliding plate 45 stops moving along with the further movement of the sliding plate 45, while the other clamping plate 42 continues moving, so that the distance between the two clamping plates 42 is pulled for placing electronic components, after clamping the electronic components, can adjust electronic component's position, the removal of the first slider 2 of cooperation and second slider 3 is corresponding the position of placing electronic component on the circuit board, and position adjustment is convenient to after the adjustment is accomplished, rotatory screw rod 49 makes screw rod 49 extrusion contact dodge the inslot 48, thereby the electronic component of being convenient for aims at the welding point, avoids the welding position skew, influences welding quality.

A locking device 7 is arranged in the middle of the second slider 3, the locking device 7 comprises a rubber block 71, a pull rod 72 is fixedly connected with the upper side of the rubber block 71, a boss 8 is arranged at the upper end of the pull rod 72, a groove 73 is arranged at the bottom of the second slider 3, a supporting spring 74 is fixedly connected between the rubber block 71 and the bottom of the groove 73, the pull rod 72 penetrates through the supporting spring 74, a second sliding hole communicated with the groove 73 is arranged at the upper side of the second slider 3, the pull rod 72 penetrates through the second sliding hole and is in sliding connection with the second sliding hole, a clamping block 75 is fixedly connected with the outer ring of the pull rod 72, a clamping groove 76 is arranged on the inner wall of the second sliding hole, the clamping block 75 is matched with the clamping groove 76, the clamping block 75 is lapped at the upper side of the second slider 3, the rubber block 71 is separated from the surface of the circuit board to be pressed, after the electronic element moves to a proper position, the corresponding rubber block 71 falls down and is pressed against the upper side of the circuit board.

When the electronic component placing device is used, after the screw 49 is unscrewed, the third sliding block 46 can slide in the sliding groove 47, the sliding plate 45 is pulled by the stop block 6 to move outwards, the two clamping plates 42 move synchronously, the clamping plate 42 far away from the sliding plate 45 stops moving along with the further movement of the sliding plate 45, the other clamping plate 42 continues moving, therefore, the distance between the two clamping plates 42 is pulled open for placing an electronic component, after the electronic component is clamped, the sliding plate 45 moves backwards, the position of the electronic component can be adjusted under the relative movement of the first spring 43 and the second spring 44, the electronic component is correspondingly placed at the corresponding position on the circuit board by matching with the movement of the first sliding block 2 and the second sliding block 3, the position adjustment is convenient, the electronic component can be conveniently aligned with a welding point, and the welding quality is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

SMT printing jig, including bottom plate (11), bottom plate (11) upside is equipped with standing groove (12), its characterized in that: four corners of the upper side of the bottom plate (11) are respectively fixedly connected with a vertical plate (13), a first guide rod (14) is fixedly connected between the two vertical plates (13), a second guide rod (15) is fixedly connected between the other two vertical plates (13), the first guide rod (14) and the second guide rod (15) are arranged in parallel, the first guide rod (14) is connected with a first sliding block (2) in a sliding manner, the second guide rod (15) is connected with a second sliding block (3) in a sliding manner, and a clamping device (4) is arranged between the first sliding block (2) and the second sliding block (3);

the clamping device (4) comprises two guide shafts (41) which are arranged in parallel, the two guide shafts (41) are fixedly connected between the first sliding block (2) and the second sliding block (3), two splint (42) of sliding connection on guiding axle (41), two form between splint (42) and press from both sides tight passageway, every splint (42) are equipped with two first slide holes, two guiding axle (41) are passed in the first slide hole that corresponds, are close to two first spring (43) of fixed connection between splint (42) and the first slider (2) of first slider (2), every guiding axle (41) are passed in by corresponding first spring (43), are close to two second spring (44) of fixed connection between splint (42) and the second slider (3) of second slider (3), every guiding axle (41) are passed in by corresponding second spring (44).
2. An SMT printing jig according to claim 1, wherein: a sliding plate (45) is fixedly connected to the upper side of the clamping plate (42) close to the second sliding block (3), the bottom of the sliding plate (45) is fixedly connected with a third sliding block (46), a sliding groove (47) is formed in the upper side of the second sliding block (3), and the third sliding block (46) is slidably connected into the sliding groove (47).
3. An SMT printing jig according to claim 2, wherein: the cross-section of third slider (46) is the type of falling T, spout (47) and third slider (46) looks adaptation, spout (47) tank bottom is equipped with dodges groove (48), third slider (46) middle part is equipped with the screw hole, screw hole female connection screw rod (49), screw rod (49) lower extreme stretches into and dodges in groove (48), screw rod (49) upper end is passed and is dodged the hole on sliding plate (45) and at end fixed connection horizontal pole (5).
4. An SMT printing jig according to claim 3, wherein: one end of the upper side of the sliding plate (45) far away from the second sliding block (3) is fixedly connected with a stop block (6).
5. An SMT printing jig according to any one of claims 1-4, wherein: second slider (3) middle part is equipped with locking device (7), locking device (7) include block rubber (71), block rubber (71) upside fixed connection pull rod (72), second slider (3) bottom is equipped with recess (73), fixed connection supporting spring (74) between block rubber (71) and recess (73) tank bottom, pull rod (72) are passed in by supporting spring (74), second slider (3) upside is equipped with the second slide opening that communicates recess (73), pull rod (72) are passed and rather than sliding connection by the second slide opening in, pull rod (72) outer lane fixed connection fixture block (75), second slide opening inner wall is equipped with draw-in groove (76), fixture block (75) and draw-in groove (76) looks adaptation.
6. An SMT printing jig according to claim 5, wherein: and a boss (8) is arranged at the upper end of the pull rod (72).
7. An SMT printing jig according to any one of claims 1-4, wherein: one side of the placing groove (12) is of an open structure, and the other side, opposite to the placing groove (12), is provided with an open groove (9).