CN215898132U

CN215898132U - Clamping tool for SMT paster processing

Info

Publication number: CN215898132U
Application number: CN202122211126.1U
Authority: CN
Inventors: 高茜
Original assignee: Sichuan Huacan Electronic Co ltd
Current assignee: Sichuan Huacan Electronic Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-22
Anticipated expiration: 2031-09-13

Abstract

The application provides a centre gripping frock is used in processing of SMT paster belongs to centre gripping frock technical field. This centre gripping frock is used in SMT paster processing, including fixed subassembly and centre gripping subassembly. Fixed subassembly includes bottom plate, riser and roof, the centre gripping subassembly includes first lead screw, second lead screw, first pivot, second pivot, inserted bar and clamp splice, the second pivot with first pivot passes through the bearing and rotates the connection, the one end of first lead screw rotate run through in the riser and with first pivot meshing transmission, the one end of second lead screw rotate run through in the riser and with second pivot meshing transmission, slider slidable mounting in the spout, the bottom fixedly connected with slide of clamp splice. The device can clamp and fix four sides of PCB plates with different length-width ratios, solves the problem that the traditional clamp can only clamp two sides when used for clamping the PCB plates with different length-width ratios, and improves the application range.

Description

Clamping tool for SMT paster processing

Technical Field

The application relates to a centre gripping frock field particularly, relates to a centre gripping frock is used in SMT paster processing.

Background

SMT is a surface mounting technology, which is a circuit mounting and connecting technology that surface mounting components without pins or short leads are mounted on the surface of a printed circuit board or other substrates and are welded and assembled by methods such as reflow soldering or dip soldering, when a PCB is subjected to surface mounting processing, a clamping tool is required to fix the PCB to prevent the PCB from shaking in the surface mounting process to cause surface mounting errors, most of the PCB are rectangular and square, when the conventional clamping device clamps the PCB with different length-width ratios, because the length and the width of the PCB are different, the side walls of the PCB with different length-width ratios cannot be clamped by automatic adjustment, so that only two sides of the PCB with different length-width ratios can be clamped to influence the fixing effect, and further the PCB shaking is easy to occur in the surface mounting process to influence the surface mounting effect, causing a cold joint phenomenon.

SUMMERY OF THE UTILITY MODEL

In order to compensate for above not enough, this application provides a centre gripping frock is used in SMT paster processing, aims at improving the problem that centre gripping is fixed can not be carried out to the PCB panel four sides lateral wall that length-width ratio is different for the centre gripping frock for the SMT paster.

The embodiment of the application provides a centre gripping frock is used in SMT paster processing, including fixed subassembly and centre gripping subassembly.

The fixed subassembly includes bottom plate, riser and roof, the riser install in the bottom plate surface, the roof install in the riser surface.

The clamping assembly comprises a first screw rod, a second screw rod, a first rotating shaft, a second rotating shaft, an inserting rod and a clamping block, the first screw rod and the second screw rod are rotatably arranged on the vertical plate, one end of the first rotating shaft rotatably penetrates through the bottom surface of the bottom plate, the second rotating shaft is rotatably arranged on the bottom surface of the top plate, the second rotating shaft is rotatably connected with the first rotating shaft through a bearing, one end of the first screw rod rotatably penetrates through the vertical plate and is in meshing transmission with the first rotating shaft, one end of the second screw rod rotatably penetrates through the vertical plate and is in meshing transmission with the second rotating shaft, a chute communicated with the first rotating shaft and the second rotating shaft is formed in the first rotating shaft and the second rotating shaft, the inserting rod is slidably inserted in the first rotating shaft and the second rotating shaft, the outer wall of the inserting rod is fixedly connected with a sliding block, and the sliding block is slidably arranged in the chute, the bottom of the clamping block is fixedly connected with a sliding seat, and the sliding seat penetrates through the top plate in a sliding mode and is sleeved on the first screw rod and the second screw rod in a sliding mode.

In the implementation process, through the arrangement of the insertion rod, the first rotating shaft, the second rotating shaft, the first screw rod and the second screw rod, the insertion rod is rotated to drive the first rotating shaft and the second rotating shaft to rotate, the first rotating shaft and the second rotating shaft are driven to rotate when rotating, the clamping blocks are driven to move inwards through the sliding seat to clamp the side wall of the PCB, when the clamping blocks on two sides are in contact with the PCB and the other two clamping blocks are not in contact with the side wall of the PCB, the insertion rod is pulled down, the insertion rod is rotated again, the insertion rod drives the first screw rod to rotate to drive the clamping blocks on two sides to move inwards to clamp and fix the periphery of the PCB, and through the arrangement, the device can clamp and fix four sides of the PCB with different length-width ratios, and solves the problem that the traditional clamp can only clamp two sides when clamping the PCB with different length-width ratios, the application range is improved.

In a specific embodiment, a through groove is formed in the surface of the top plate, and the sliding seat penetrates through the through groove in a sliding manner and is sleeved on the first lead screw and the second lead screw in a threaded manner.

In the implementation process, the through groove is arranged, so that the sliding seat can move conveniently, and the sliding seat can drive the clamping block to move conveniently.

In a specific embodiment, a first gear is keyed on the outer wall of the first rotating shaft, a second gear is fixedly connected to one end of the first screw rod, and the first gear and the second gear are meshed with each other.

In the implementation process, the first screw rod is conveniently driven to rotate by the first rotating shaft through the arrangement of the first gear and the second gear.

In a specific embodiment, a third gear is keyed on the outer wall of the second rotating shaft, a fourth gear is fixedly connected to one end of the second screw rod, and the fourth gear and the third gear are meshed with each other.

In the implementation process, the second screw rod is conveniently driven to rotate by the second rotating shaft through the arrangement of the third gear and the fourth gear.

In a specific embodiment, the surface of the clamping block is provided with an elastic layer which is fixedly connected with the surface of the clamping block.

In the implementation process, the elastic layer is arranged, so that the protection effect is achieved, and the clamping block is prevented from being worn when the SMT board is clamped.

In a specific implementation scheme, a limiting rod is installed on one side of the vertical plate, and the sliding seat is sleeved on the outer wall of the limiting rod in a sliding mode.

In the implementation process, the limiting rod is arranged, so that the movement of the sliding seat is limited, and the movement of the sliding seat is more stable.

In a specific implementation scheme, the clamping assembly further comprises a vacuum pump, the vacuum pump is installed on the bottom surface of the top plate, the output end of the vacuum pump is fixedly communicated with a vacuum chuck, and the vacuum chuck is arranged in the center of the surface of the top plate.

In the implementation process, the fixing effect on the SMT board is further improved by arranging the vacuum pump and the vacuum chuck.

In a specific embodiment, a rotating handle is fixedly connected to one end of the insertion rod.

In the implementation process, the insertion rod is convenient to rotate through the rotating handle by the aid of the rotating handle, and the purposes of saving time and labor are achieved.

In a specific embodiment, the bottom surface of the bottom plate is fixedly connected with support legs, and the support legs are arranged at four corners of the bottom plate.

In the implementation process, the supporting legs are arranged to support and keep the bottom plate stable.

In a specific embodiment, the bottom of the clamping block is fixedly connected with a limiting block, a limiting groove is formed in the surface of the top plate, and the limiting block is slidably mounted in the limiting groove.

In the implementation process, the limiting blocks and the limiting grooves are arranged, so that the motion of the clamping blocks is limited, and the motion of the clamping blocks is more stable.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural view of a clamping tool for SMT patch processing according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of the clamping tool for SMT patch processing according to the embodiment of the present disclosure from another view angle;

FIG. 3 is a schematic diagram of a bottom plate structure provided in an embodiment of the present application;

FIG. 4 is a schematic view of a top plate structure provided in an embodiment of the present application;

fig. 5 is a schematic structural view of a first rotating shaft and a second rotating shaft according to an embodiment of the present disclosure;

FIG. 6 is an enlarged view of the location A in FIG. 1 according to an embodiment of the present disclosure;

FIG. 7 is an enlarged view of the location B in FIG. 2 according to an embodiment of the present disclosure;

fig. 8 is an enlarged view of a position C in fig. 3 according to an embodiment of the present disclosure.

In the figure: 100-a stationary component; 110-a base plate; 111-legs; 120-a riser; 121-a limiting rod; 130-a top plate; 131-through grooves; 132-a limiting groove; 200-a clamping assembly; 210-a first lead screw; 211-a second gear; 220-a second screw rod; 221-fourth gear; 230-a first shaft; 231-a bearing; 232-chute; 233-a first gear; 240-a second shaft; 241-a third gear; 250-inserting rod; 251-a slider; 252-rotating handle; 260-a clamping block; 261-a slide seat; 262-an elastic layer; 263-a limiting block; 270-a vacuum pump; 271-vacuum chuck.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present application provides a clamping tool for SMT patch processing, including a fixing assembly 100 and a clamping assembly 200.

Referring to fig. 1, 2, 3, 4, 6, 7, and 8, the fixing assembly 100 includes a bottom plate 110, a vertical plate 120, and a top plate 130, the bottom surface of the bottom plate 110 is fixedly connected with legs 111, the legs 111 are disposed at four corners of the bottom plate 110, when specifically disposed, the legs 111 are disposed to support and keep the bottom plate 110 stable, the vertical plate 120 is mounted on the surface of the bottom plate 110, the top plate 130 is mounted on the surface of the vertical plate 120, a through groove 131 is disposed on the surface of the top plate 130, the sliding base 261 slidably penetrates through the through groove 131 and is threadedly sleeved on the first lead screw 210 and the second lead screw 220, in this embodiment, the through groove 131 is disposed to facilitate movement of the sliding base 261, and further, the sliding base 261 drives the clamping block 260 to move.

Referring to fig. 1 to 8, the clamping assembly 200 includes a first screw rod 210, a second screw rod 220, a first rotating shaft 230, a second rotating shaft 240, an inserting rod 250 and a clamping block 260, wherein the first screw rod 210 and the second screw rod 220 are both rotatably mounted on the vertical plate 120, one end of the first rotating shaft 230 rotatably penetrates through the bottom surface of the bottom plate 110, the second rotating shaft 240 is rotatably mounted on the bottom surface of the top plate 130, the second rotating shaft 240 is rotatably connected with the first rotating shaft 230 through a bearing 231, one end of the first screw rod 210 rotatably penetrates through the vertical plate 120 and is in meshing transmission with the first rotating shaft 230, a first gear 233 is in key connection with an outer wall of the first rotating shaft 230, one end of the first screw rod 210 is fixedly connected with a second gear 211, the first gear 233 and the second gear 211 are in mutual meshing transmission, in this embodiment, through the arrangement of the first gear 233 and the second gear 211, it is convenient for the first rotating shaft 230 to drive the first screw rod 210 to rotate, one end of the second screw rod 220 rotatably penetrates through the vertical plate 120 and is in meshing transmission with the second rotating shaft 240, the outer wall key of the second rotating shaft 240 is connected with a third gear 241, one end of the second screw rod 220 is fixedly connected with a fourth gear 221, the fourth gear 221 and the third gear 241 are in mutual meshing, it should be noted that the second rotating shaft 240 is convenient for the second screw rod 220 to drive the second screw rod 220 to rotate through the arrangement of the third gear 241 and the fourth gear 221. A chute 232 is formed in the first rotating shaft 230 and the second rotating shaft 240 and is communicated with each other.

In the application, the insert rod 250 is slidably inserted into the first rotating shaft 230 and the second rotating shaft 240, the outer wall of the insert rod 250 is fixedly connected with a sliding block 251, the sliding block 251 is slidably mounted in the sliding groove 232, one end of the insert rod 250 is fixedly connected with a rotating handle 252, when the insert rod 250 is specifically set, the insert rod 250 is conveniently rotated by the rotating handle 252 through the setting of the rotating handle 252, so that the purposes of saving time and labor are achieved, the bottom of the clamping block 260 is fixedly connected with a sliding seat 261, the sliding seat 261 slidably penetrates through the top plate 130 and is slidably sleeved on the first screw rod 210 and the second screw rod 220, one side of the vertical plate 120 is provided with a limiting rod 121, the sliding seat 261 is slidably sleeved on the outer wall of the limiting rod 121, in the application, the sliding seat 261 is limited through the setting of the limiting rod 121, so that the movement of the sliding seat 261 is more stable, the surface of the clamping block 260 is provided with an elastic layer 262, the elastic layer 262 is fixedly connected to the surface of the clamping block 260, it should be noted that, by the arrangement of the elastic layer 262, a protective effect is achieved, abrasion of the clamping block 260 when clamping an SMT board is prevented, the bottom of the clamping block 260 is fixedly connected with a limit block 263, the surface of the top plate 130 is provided with a limit groove 132, the limit block 263 is slidably mounted in the limit groove 132, when the clamping block is specifically arranged, the movement of the clamping block 260 is limited by the arrangement of the limit block 263 and the limit groove 132, so that the movement of the clamping block 260 is more stable, the clamping assembly 200 further comprises a vacuum pump 270, the vacuum pump 270 is mounted on the bottom surface of the top plate 130, an output end of the vacuum pump 270 is fixedly communicated with a vacuum suction cup 271, and the vacuum suction cup 271 is arranged at the center of the surface of the top plate 130, in this application, through the setting of vacuum pump 270 and vacuum chuck 271, further improve the fixed effect to the SMT board.

This SMT paster processing is with theory of operation of centre gripping frock: when the PCB clamping device is used, when a PCB with different length-width ratios is required to be clamped, one end of the PCB with longer length is placed between the clamping blocks 260 above the second screw rod 220, the inserting rod 250 is pushed upwards, the inserting rod 250 rotates to drive the first rotating shaft 230 and the second rotating shaft 240 to rotate at the same time, the first rotating shaft 230 and the second rotating shaft 240 rotate to drive the second gear 211 and the fourth gear 221 to rotate through the first gear 233 and the third gear 241 respectively, the second gear 211 and the fourth gear 221 rotate to drive the first screw rod 210 and the second screw rod 220 to rotate, the first screw rod 210 and the second screw rod 220 rotate to drive the sliding seat 261 to drive the clamping blocks 260 to move, when the clamping blocks 260 above the second screw rod 220 are in contact with the side wall of the longer end of the PCB and are tightened, the rotating handle 252 is pulled to drive the inserting rod 250 to move downwards, the rotating handle 252 is rotated again to drive the first rotating shaft 230 to rotate through the inserting rod 250 and the sliding block 251, the first rotating shaft 230 rotates to drive the first screw rod 210 to rotate, so that the clamping block 260 above the first screw rod 210 continues to move, and the other two side walls of the PCB board are clamped and fixed, that is, four sides of the PCB board with different length-width ratios are clamped and fixed.

It should be noted that the specific model specification of the vacuum pump 270 needs to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the vacuum pump 270 and its principle will be clear to the skilled person and will not be described in detail here.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. Clamping tool for SMT paster processing, which is characterized by comprising

A fixing assembly (100), the fixing assembly (100) comprising a bottom plate (110), a vertical plate (120) and a top plate (130), the vertical plate (120) being mounted on the surface of the bottom plate (110), the top plate (130) being mounted on the surface of the vertical plate (120);

the clamping assembly (200) comprises a first screw rod (210), a second screw rod (220), a first rotating shaft (230), a second rotating shaft (240), an inserting rod (250) and a clamping block (260), wherein the first screw rod (210) and the second screw rod (220) are rotatably installed on the vertical plate (120), one end of the first rotating shaft (230) is rotatably penetrated through the bottom surface of the bottom plate (110), the second rotating shaft (240) is rotatably installed on the bottom surface of the top plate (130), the second rotating shaft (240) is rotatably connected with the first rotating shaft (230) through a bearing (231), one end of the first screw rod (210) is rotatably penetrated through the vertical plate (120) and is in meshing transmission with the first rotating shaft (230), one end of the second screw rod (220) is rotatably penetrated through the vertical plate (120) and is in meshing transmission with the second rotating shaft (240), the sliding groove (232) communicated with each other is formed in the first rotating shaft (230) and the second rotating shaft (240), the inserting rod (250) is inserted into the first rotating shaft (230) and the second rotating shaft (240) in a sliding mode, a sliding block (251) is fixedly connected to the outer wall of the inserting rod (250), the sliding block (251) is installed in the sliding groove (232) in a sliding mode, a sliding seat (261) is fixedly connected to the bottom of the clamping block (260), and the sliding seat (261) penetrates through the top plate (130) in a sliding mode and is sleeved on the first screw rod (210) and the second screw rod (220) in a sliding mode.

2. The clamping tool for SMT patch processing according to claim 1, wherein a through slot (131) is formed in a surface of the top plate (130), and the slide base (261) slidably penetrates through the through slot (131) and is in threaded sleeve connection with the first lead screw (210) and the second lead screw (220).

3. An SMT patch processing clamping tool according to claim 1, wherein a first gear (233) is keyed to an outer wall of the first rotating shaft (230), a second gear (211) is fixedly connected to one end of the first lead screw (210), and the first gear (233) and the second gear (211) are meshed with each other.

4. An SMT patch clamping tool according to claim 1, wherein a third gear (241) is keyed to an outer wall of the second shaft (240), a fourth gear (221) is fixedly connected to one end of the second lead screw (220), and the fourth gear (221) and the third gear (241) are meshed with each other.

5. A clamping fixture for SMT patch processing according to claim 1, wherein an elastic layer (262) is disposed on the surface of the clamping block (260), and the elastic layer (262) is fixedly connected to the surface of the clamping block (260).

6. The clamping tool for SMT patch processing according to claim 1, wherein a limiting rod (121) is mounted on one side of the riser (120), and the sliding base (261) is slidably sleeved on an outer wall of the limiting rod (121).

7. A clamping tool for SMT patch processing according to claim 1, wherein said clamping assembly (200) further comprises a vacuum pump (270), said vacuum pump (270) is installed on the bottom surface of said top plate (130), the output end of said vacuum pump (270) is fixedly communicated with a vacuum suction cup (271), and said vacuum suction cup (271) is disposed at the center of the surface of said top plate (130).

8. An SMT patch clamping tool according to claim 1, wherein a rotating handle (252) is fixedly connected to one end of the inserting rod (250).

9. An SMT patch processing clamping tool according to claim 1, wherein the bottom surface of the bottom plate (110) is fixedly connected with legs (111), and the legs (111) are arranged at four corners of the bottom plate (110).

10. The clamping tool for SMT patch processing according to claim 1, wherein a limiting block (263) is fixedly connected to the bottom of the clamping block (260), a limiting groove (132) is formed in the surface of the top plate (130), and the limiting block (263) is slidably mounted in the limiting groove (132).