CN211804274U

CN211804274U - Clamp and wave soldering device

Info

Publication number: CN211804274U
Application number: CN201922040476.9U
Authority: CN
Inventors: 韦军
Original assignee: Dongfeng Electric Drive Systems Co Ltd
Current assignee: Dongfeng Electric Drive Systems Co Ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-10-30
Anticipated expiration: 2029-11-23

Abstract

The embodiment of the utility model provides a pair of anchor clamps and wave-soldering device, at anchor clamps body both sides limit, the cardboard has been inlayed between the plane slide that is close to anchor clamps advancing end position and the anchor clamps body, constitutes special-shaped slide assembly. When the clamp is processed, the special-shaped sliding plate assembly on the two side edges of the clamp for loading workpieces is placed in the equipment guide rail, when the clamp reaches a welding area and the stopper falls down from the top, the thickness of the head clamping plate is larger than the gap between the end face of the stopper and the equipment rail after the stopper falls down, so that the thickness of the head of the sliding plate is reduced after the thickness of the head of the sliding plate is worn, the clamp can follow the equipment rail under the driving and inertia effects of the equipment chain, and tiny displacement continues to occur between the end face of the stopper and the equipment rail to generate an original positioning coordinate error, so that the problem of processing quality is solved, and the condition that the clamp is clamped between the stopper and the rail to cause equipment action error halt and alarm can be avoided.

Description

Clamp and wave soldering device

Technical Field

The embodiment of the utility model provides a relate to the welding technology field, especially relate to an anchor clamps and wave-soldering device.

Background

In the course of the development of modern electronic welding technology, two historical changes have been experienced: the first time is the transition from through-hole soldering technology to surface mount soldering technology; the second time we are undergoing a transition from the leaded to the lead-free soldering technique. The evolution of the welding technique brings directly two results: firstly, through hole components needing to be welded on the circuit board are fewer and fewer; and secondly, the welding difficulty of through hole components (especially large heat capacity or fine pitch components) is getting bigger and bigger, and the through hole components are especially products with lead-free and high reliability requirements. Looking again at the new challenges currently faced by the global electronics assembly industry: global competition forces manufacturers to market products in a shorter time to meet the ever changing demands of customers; seasonal changes of product requirements require flexible production and manufacturing concepts; global competition forces manufacturers to reduce operating costs on the premise of improving quality; lead-free production has been the trend. The above challenges are naturally reflected in the choice of production methods and equipment, which is also the main reason why selective wave soldering (hereinafter referred to as selective soldering) has been developed faster in recent years than other soldering methods; of course, the advent of the lead-free era is another important factor for its development.

The welding mainly adopts several welding techniques such as manual welding, wave soldering, selective welding and the like, and the characteristics of the welding techniques are different; manual welding is still widely adopted up to now due to the advantages of long history, low cost, high flexibility and the like. However, in some applications where reliability is required and soldering difficulty is high, the following reasons are quite restrictive: 1. the temperature of the soldering bit is difficult to control accurately; 2. the quality of welding spots is often influenced by the knowledge, skill and emotion of an operator and is difficult to control; 3. the cost advantage of labor over machine equipment is gradually lost. Wave soldering is a process of realizing welding point welding by enabling the welding surface of a plug-in board to be directly contacted with high-temperature liquid tin to achieve the purpose of welding, wherein the high-temperature liquid tin keeps an inclined surface, and the liquid tin forms a wave-like phenomenon by a special device, and the wave soldering penetrates through a solder wave through a certain specific angle and a certain immersion depth to realize welding point welding.

At present, when selective wave soldering equipment is used for soldering, an X-axis clamp is limited by an automatic falling stopper. According to the processing characteristics and the technical requirements of the processing technology of the equipment, the traditional clamp structure and material are generally made of high-temperature-resistant lightweight synthetic stone, and the structural shape of the end face of the clamp is generally a T-shaped two-side-wing plane sliding plate type. When the clamp is used for welding, the stopper cannot effectively block the clamp or the clamp is clamped between the guide rail and the stopper, so that equipment is stopped and the welding quality is caused.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an anchor clamps and wave-soldering device for there is head wearing and tearing, the equipment stopper height that falls down to have abnormal conditions such as variation when solving among the prior art mass production anchor clamps slide, the stopper can not effectively block or anchor clamps card between guide rail and stopper when causing the welding, leads to equipment to shut down and influences the problem of welding quality.

In a first aspect, an embodiment of the present invention provides a fixture, which includes a fixture body, wherein a plurality of positioning slots for storing workpieces, and a rotary pressing block and a rotary pressing plate for pressing the workpieces are formed in the middle of the fixture body; the clamp is characterized in that clamping plates are embedded between the parallel sliding plates at the two side edges of the clamp body, which are close to the inlet end of the clamp body, and the clamp body.

Preferably, the clamp further comprises a first clamp support and a second clamp support, the first clamp support and the second clamp support are fixed on the clamp body base plate, and the first clamp support and the second clamp support are used for separating workpieces, installing a clamping mechanism and fastening the clamp body base plate so as to enhance the rigidity strength of the clamp body base plate.

Preferably, the first clamp supports are arranged on two sides of a bottom plate of the clamp body, clamping plates are arranged on the clamp body below the first clamp supports, and the clamping plates are symmetrically arranged on the clamp body.

Preferably, the clamping plate is a rectangular body, the wide edge of the clamping plate is aligned with the end edge of the clamp body, and the long edge of the clamping plate is aligned with the side edge of the clamp body.

Preferably, the clamping plate is made of aluminum alloy materials, the plane sliding plates on the two sides of the clamp body slide on the equipment chain and the track along the X direction, the thickness of the plane sliding plates on the two sides is 2mm, and the thickness of the clamping plate is 3.5 mm.

Preferably, the clamp body is made of high-temperature-resistant synthetic stone materials and is formed by numerical control machining according to a PCBA workpiece appearance numerical model.

Preferably, the clamp further comprises a bottom screw, wherein the bottom screw penetrates through the clamp body and fixes the first clamping plate and the second clamping plate on the first clamp support.

In a second aspect, an embodiment of the present invention provides a wave soldering apparatus, including as the utility model discloses the anchor clamps in the embodiment of the first aspect.

The embodiment of the utility model provides a pair of anchor clamps, on anchor clamps body both sides limit, be close to anchor clamps and advanced between the plane slide at end position and the anchor clamps body and inlayed the cardboard, constitute special-shaped slide assembly. When the clamp is processed, the special-shaped sliding plate assembly on the two side edges of the clamp for loading workpieces is placed in the equipment guide rail, when the clamp reaches a welding area and the stopper falls down from the top, the thickness of the head clamping plate is larger than the gap between the end face of the stopper and the equipment rail after the stopper falls down, so that the thickness of the head of the sliding plate is reduced after the thickness of the head of the sliding plate is worn, the clamp can follow the equipment rail under the driving and inertia effects of the equipment chain, and tiny displacement continues to occur between the end face of the stopper and the equipment rail to generate an original positioning coordinate error, so that the problem of processing quality is solved, and the condition that the clamp is clamped between the stopper and the rail to cause equipment action error halt and alarm can be avoided. The utility model discloses a cardboard part is different from anchor clamps body synthetic stone material, adopts alloy wear-resistant material, reducible mill time. Meanwhile, the light weight requirement of the whole clamp is not influenced. The utility model discloses the cardboard adopts screw and anchor clamps body to fold and presss from both sides the fastening, can conveniently change the cardboard, can make the cardboard firm stable again to reduce the waste of anchor clamps. The embodiment of the utility model provides a characteristics are, anchor clamps structure has had the dead function with X axial motion is spacing of anti-sticking in equipment machining, can replace traditional anchor clamps. The embodiment of the utility model provides a mainly used ECOSELECT2 selective wave soldering equipment's of ERSA anchor clamps.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a clamp according to an embodiment of the present invention;

fig. 2 is a schematic side view of a clamp according to an embodiment of the present invention;

fig. 3 is a schematic structural view of another side of a clamp according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a card board structure according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The terms "first" and "second" in the embodiments of the present application 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 at least one such feature. In the description of the present application, the terms "comprise" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a system, product or apparatus that comprises a list of elements or components is not limited to only those elements or components but may alternatively include other elements or components not expressly listed or inherent to such product or apparatus. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Therefore, the embodiment of the utility model provides a clamp, solve when welding in batches production the clamp have the head wear, the equipment stopper falls down the height have the variation grade abnormal condition, cause the welding time stopper can not effectively block or the clamp is blocked between guide rail and stopper, lead to equipment to shut down and produce the welding quality problem; the following description and description will proceed with reference being made to various embodiments.

Fig. 1 to 4 show a clamp according to an embodiment of the present invention, which includes a clamp body 3, wherein a plurality of positioning slots for storing workpieces, a rotary pressing block 7 for pressing the workpieces, and a rotary pressing plate 6 are formed in the middle of the clamp body 3; clamping plates are embedded between the parallel sliding plates at the two side edges of the clamp body 3, which are close to the inlet end part of the clamp body 3, and the clamp body 3.

In this embodiment, the clamp compresses tightly work piece mechanism, cardboard spare part and constitutes, wherein, the clamp body 3, rotary pressing plate 6 and rotary pressing block 7 constitute and compress tightly work piece mechanism, and the clamp body 3 is the clamp body 3 that is formed by the equipment of machining part for each spare part of installation and fixed clamp, and its clamp body 3 adopts high temperature resistant synthetic stone material according to PCBA work piece appearance digifax, by numerical control machine-shaping, simple structure. The fixture body 3 is provided with a positioning groove for loading workpieces, and the workpieces are placed in the positioning groove. First cardboard 1 and second cardboard 5 in the anchor clamps are by aluminium alloy material machine-shaping, install on 3 bottom plates of anchor clamps body, and 3 symmetrical both sides of anchor clamps body respectively set up first cardboard 1 and second cardboard 5.

The embodiment of the utility model provides a have simple structure practicality, characteristics with low costs. The utility model discloses mainly be applied to processing automotive electronics PCBA part on the ECOSELECT2 selectivity wave soldering equipment of the ERSA of import, also can be applied to the welding technology field of other selectivity welding equipment.

On the basis of the above embodiment, the clamp further comprises a first clamp support 2 and a second clamp support 4, the first clamp support 2 and the second clamp support 4 are fixed on the bottom plate of the clamp body 3, and the first clamp support 2 and the second clamp support 4 are used for separating workpieces, installing a clamping mechanism, and fastening the bottom plate of the clamp body 3 to enhance the rigidity strength of the bottom plate of the clamp body 3.

In the present embodiment, the first and second jig supports 2 and 4 are fixed to the bottom plate of the jig body 3, and are used for partitioning the workpiece, installing the clamping mechanism, and reinforcing the rigidity of the bottom plate of the jig body 3. The clamp body 3 is provided with a forming groove for loading a workpiece, the workpiece is placed in the forming groove, the first clamp support 2 and the clamp body 3 are provided with a rotatable rotary pressing plate 6 and a rotatable rotary pressing block 7 mechanism, and the workpiece can be fixed. First cardboard 1 and second cardboard 5 in the anchor clamps are by aluminium alloy material machine-shaping, install on 3 bottom plates of anchor clamps bodies, and the first anchor clamps in both sides support 2 below, and anchor clamps symmetry both sides set up first cardboard 1 and second cardboard 5.

On the basis of the embodiment, the first clamp supports are arranged on two sides of the bottom plate of the clamp body 3, clamping plates are arranged on the clamp body 3 below the first clamp supports, and the clamping plates are symmetrically arranged on the clamp body 3.

On the basis of the above embodiment, the clamping plate is a rectangular body, the wide side of the clamping plate is aligned with the end edge of the clamp body 3, and the long side of the clamping plate is aligned with the side edge of the clamp body 3.

On the basis of the embodiment, the clamping plate is made of an aluminum alloy material, the plane sliding plates on the two sides of the clamp body 3 slide on the equipment chain and the track along the X direction, the thickness of the plane sliding plates on the sides is 2mm, and the thickness of the clamping plate is 3.5 mm.

The plane slide on 3 both sides limits of anchor clamps body slides the operation along the X direction on equipment chain and track, and side plane slide thickness 2mm, first cardboard 1 and 5 thickness of second cardboard are 3.5mm, therefore anchor clamps tip and stop that the piece contact surface height can reach 5.5 mm. The thickness of the clamping plate is 3.5mm, so that the change range of the gap between the lower edge of the stopper and the equipment rail surface after the stopper falls down due to various reasons can be compensated. During welding, the anchor clamps move along X to, and the stopper that first cardboard 1, second cardboard 5 and equipment dropped down on the both sides limit on the anchor clamps bump, because first cardboard 1 and second cardboard 5 support 2 pressfittings under the 8 first anchor clamps of bottom screw on the anchor clamps support, stabilize in the plane slide surface on 3 both sides limits of anchor clamps body. The fixture has the functions of anti-jamming and X axial movement limiting in equipment processing, and has the characteristics of wear resistance, high temperature resistance, convenient replacement and low cost.

On the basis of the above embodiment, the clamp further comprises a bottom screw 8, and the bottom screw 8 penetrates through the clamp body 3 and fixes the first clamping plate 1 and the second clamping plate 5 on the first clamp support 2.

An embodiment of the utility model provides a wave soldering device, include like embodiment above anchor clamps.

The embodiment of the utility model provides a pair of anchor clamps and wave-soldering device, at anchor clamps body both sides limit, the cardboard has been inlayed between the plane slide that is close to anchor clamps advancing end position and the anchor clamps body, constitutes special-shaped slide assembly. When the clamp is processed, the special-shaped sliding plate assembly on the two side edges of the clamp for loading workpieces is placed in the equipment guide rail, when the clamp reaches a welding area and the stopper falls down from the top, the thickness of the head clamping plate is larger than the gap between the end face of the stopper and the equipment rail after the stopper falls down, so that the thickness of the head of the sliding plate is reduced after the thickness of the head of the sliding plate is worn, the clamp can follow the equipment rail under the driving and inertia effects of the equipment chain, and tiny displacement continues to occur between the end face of the stopper and the equipment rail to generate an original positioning coordinate error, so that the problem of processing quality is solved, and the condition that the clamp is clamped between the stopper and the rail to cause equipment action error halt and alarm can be avoided. The utility model discloses a cardboard part is different from anchor clamps body synthetic stone material, adopts alloy wear-resistant material, reducible mill time. Meanwhile, the light weight requirement of the whole clamp is not influenced. The utility model discloses the cardboard adopts screw and anchor clamps body to fold and presss from both sides the fastening, can conveniently change the cardboard, can make the cardboard firm stable again to reduce the waste of anchor clamps. The embodiment of the utility model provides a characteristics are, anchor clamps structure has had the dead function with X axial motion is spacing of anti-sticking in equipment machining, can replace traditional anchor clamps. The embodiment of the utility model provides a mainly used ECOSELECT2 selective wave soldering equipment's of ERSA anchor clamps.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The clamp is characterized by comprising a clamp body, wherein the middle part of the clamp body is provided with a plurality of positioning grooves for storing workpieces, a rotary pressing block for pressing the workpieces and a rotary pressing plate; the clamp is characterized in that clamping plates are embedded between the parallel sliding plates at the two side edges of the clamp body, which are close to the inlet end of the clamp body, and the clamp body.

2. The fixture of claim 1, further comprising a first fixture support and a second fixture support, the first fixture support and the second fixture support secured to the fixture body base plate, the first fixture support and the second fixture support for spacing the workpiece, mounting the clamping mechanism, and tightening the fixture body base plate to increase the stiffness of the fixture body base plate.

3. The clamp according to claim 2, wherein the first clamp supports are arranged on two sides of a bottom plate of the clamp body, clamping plates are arranged on the clamp body below the first clamp supports, and the clamping plates are symmetrically arranged on the clamp body; the symmetrical both sides of anchor clamps body respectively set up first cardboard and second cardboard.

4. A clip as set forth in claim 3 in which the catch plate is a rectangular body with the broad sides of the catch plate aligned with the end edges of the clip body and the long sides of the catch plate aligned with the side edges of the clip body.

5. The clamp according to claim 3, wherein the clamping plate is made of aluminum alloy, the planar sliding plates on the two sides of the clamp body slide on the equipment chain and the track along the X direction, the thickness of the planar sliding plates on the side is 2mm, and the thickness of the clamping plate is 3.5 mm.

6. The fixture of claim 1, wherein the fixture body is made of a high temperature resistant synthetic stone material and is formed by numerical control machining according to a PCBA workpiece outline numerical model.

7. The clamp of claim 3, further comprising a bottom screw extending through the clamp body and securing the first and second clamping plates to the first clamp support.

8. A wave soldering apparatus comprising a fixture as claimed in any one of claims 1 to 7.