CN204097589U - buckle clamp - Google Patents

Abstract

The utility model is suitable for a circuit board production facility technical field provides a belt buckle anchor clamps for the tight electroplating of clamp when circuit board production, it is articulated through the axle bed subassembly including the middle part, and can be to closing tight punch holder and lower plate of clamp, the punch holder with be provided with the elastic component between the lower plate, the punch holder with but the same rigidity of lower plate one end is provided with the last electrically conductive nail and the lower electrically conductive nail of coincide butt joint, and the position that the other end is the same is provided with and is used for keeping the punch holder with the lower plate is in the hasp subassembly of open state. The utility model provides a belt buckle clamp, which has simple manufacture and low cost; the device can be kept permanently open, is convenient to deplate and clean, and can deplate thoroughly and clean; and the conductive nail has good strength, is not easy to deform and accurate in alignment, ensures the electroplating quality and meets the requirement of the market on the quality of the plated plate.

Description

buckle clamp

technical field

The utility model belongs to the technical field of circuit board production equipment, in particular to a buckle clamp used for clamping electroplating during circuit board production.

Background technique

In the field of PCB board production equipment, such as the production of HDI (high-density interconnect) boards, hole filling, blind holes, copper pillars and other surface plating DVCP (dual-track vertical continuous plating equipment) and VCP (vertical continuous plating equipment) equipment, need A jig is used to hold the circuit board for plating.

Existing clamps are generally assembled by upper and lower splints, shaft seats and springs. Conductive nails are arranged on the ends of the upper and lower splints. Through the action of springs, the conductive nails are clamped under the support of the shaft seats, so that a certain amount can be clamped. The weight of the board will not fall, and generally a clamp has two conductive nails, and each conductive nail is divided into two independent support rods. When the clamp is opened, the splint can only be separated by external force; When the external force disappears, the clamp will automatically close the clamp under the action of the spring, and the two conductive nails will close. At the same time, due to the separation of the two independent support rods, the strength of the conductive nail is not enough, and it is easy to deform it during the electroplating process or the collision during the manual storage operation.

In addition, in the PCB industry, due to electroplating, the conductive nails are often coated with copper on the fixture. In order to ensure that the next electroplating will not affect the electroplating effect, it is necessary to remove the copper on the conductive nails (commonly known as "deplating"). The traditional method Generally, when the fixture is closed, the copper on the conductive nails is chemically removed through liquid medicine, but only the place where the liquid medicine is in contact is removed, because the conductive nails are closed, and the planes of the two conductive nails are in close contact with each other. In some places, there will be residual copper that cannot be removed. At the same time, when cleaning the potion, the potion for cleaning and deplating will not be washed cleanly, which will affect the quality of the plated plate in the next electroplating. Therefore, deplating in the closed state will not completely remove copper from the fixture, and because the fixture is in circular motion, it is too troublesome to make a special device to open the fixture to remove copper, and the cost will increase. Therefore, the traditional fixture can no longer meet the requirements. Production needs of high-quality plated plates.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a buckle clamp, which is simple to manufacture and low in cost; it can be permanently opened, convenient for stripping and cleaning, and stripping is thorough and clean; Good strength, not easy to deform, accurate alignment, ensure the quality of electroplating, and meet the requirements for the quality of plated plates.

The utility model is achieved in the following way: a buckle clamp, including an upper clamping plate and a lower clamping plate whose middle part is hinged through a shaft seat assembly and can be clamped together, and an elastic member is arranged between the upper clamping plate and the lower clamping plate One end of the upper splint and the lower splint are fixedly provided with upper conductive nails and lower conductive nails that can be stacked and docked at the same position, and the same position at the other end is used to keep the upper splint and the lower splint in tension. The latch assembly in the open state.

Specifically, the lock assembly includes a rotatable hook and a hook for fixing the hook, the hook is rotatably connected to the upper splint through a shaft sleeve, and the hook is fixedly connected on the lower splint.

Specifically, the rotating shaft kit includes a shaft sleeve fixedly arranged on the upper splint and a rotating shaft passing through the shaft sleeve, and one end of the hook is provided with a mounting hole through which the rotating shaft passes. The rotating shaft passes through the installation hole and the shaft sleeve in turn, and the two ends are fixed and limited by the snap ring, and the other end of the hook is provided with a locking part for hooking and accommodating the hanging fastener.

Preferably, the hook is in a "U" shape, its open end is sheathed on the rotating shaft, and the other end is provided with the locking part.

Specifically, the lock part is a notch opened on the hook, and a guide slope is provided on the lock part.

Specifically, the shaft seat assembly includes an upper shaft seat fixed on the upper clamping plate and a lower shaft seat fixed on the lower clamping plate. ear, the lower shaft seat is inserted in the receiving groove, the connecting ear and the lower shaft seat are provided with shaft holes, and a pin shaft is pierced in the shaft hole, and the two pin shafts The end is connected with a limit ring.

Specifically, the upper and lower splints are provided with a positioning piece for fixing and limiting the elastic member, the positioning piece is a convex positioning post or a concave positioning blind hole, and the elastic piece is sleeved on the The positioning post is mounted on or inserted into the positioning blind hole.

Preferably, the elastic member is a spring.

Specifically, the same end of the upper splint and the lower splint extend in the same direction to form a mounting portion, the mounting portion is a plate structure, and the upper conductive nail and the lower conductive nail are respectively arranged on the mounting portion. department.

Specifically, the upper splint and the lower splint are provided with an insulating sleeve at one end of the upper conductive nail and the lower conductive nail, and the upper conductive nail and the lower conductive nail are exposed on the Insulated jacket.

The utility model provides a buckle clamp, the upper and lower splints are hinged through the shaft seat assembly, the shaft seat assembly has a large hinged matching surface, and the limit stability is good, ensuring the upper and lower conductive nails arranged on the upper and lower splints Accuracy of position when stacking and docking. At the same time, the set lock assembly can keep the upper and lower splints in an open state, which is stable and reliable, so that the upper and lower conductive nails can be completely deplated and the potion can be cleaned, ensuring the conductivity of the upper and lower conductive nails and ensuring It guarantees the quality of plate plating and meets the needs of the market for the quality of plate plating.

Description of drawings

Fig. 1 is the schematic diagram that the buckle clamp provided by the embodiment of the present invention is in an open state;

Fig. 2 is an overall exploded schematic view of the buckle clamp provided by the embodiment of the present invention;

Fig. 3 is a schematic diagram of the buckle clamp provided by the embodiment of the present invention in a clamped state;

Fig. 4 is an overall perspective view of the hook in the buckle fixture provided by the embodiment of the present invention;

Fig. 5 is a schematic cross-sectional view of the buckle clamp provided by the embodiment of the present invention along the axis of the pin shaft;

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1 to 3, a buckle fixture 1 provided by the embodiment of the present invention is used for clamping electroplating during circuit board production. The upper clamping plate 121 and the lower clamping plate 122 , and the elastic member 13 is arranged between the upper clamping plate 121 and the lower clamping plate 122 . In this way, the upper clamping plate 121 and the lower clamping plate 122 can take the shaft seat assembly 11 as a fulcrum, and are clamped or opened under the drive of the elastic member 13, so as to realize the corresponding use function when electroplating the plate. In this embodiment, the upper clamping plate 121 and the lower clamping plate 122 are always kept in a state of clamping together under the force of the elastic member 13, so as to clamp the plating plate to be electroplated. And upper splint 121 and lower splint 122 end same position are fixedly provided with upper conductive nail 141 and lower conductive nail 142 that can be stacked butt joint, and are provided with two pairs, by upper conductive nail 141 and lower conductive nail 142, thereby can pair Clamped plated plates undergo electroplating. Moreover, the hinged fitting surface of the shaft seat assembly 11 is large, which ensures the accuracy of the overlapping position of the upper conductive nail 141 and the lower conductive nail 142 .

Specifically, as shown in FIGS. 1 to 3, in the actual electroplating process, the upper conductive nail 141 and the lower conductive nail 142 are often covered with copper, and the effect of the next electroplating will be reduced after the copper is applied. In order to ensure the quality of electroplating , it is necessary to perform deplating treatment on the upper conductive nail 141 and the lower conductive nail 142 to remove the attached copper. When deplating the upper conductive nail 141 and the lower conductive nail 142 with water, in order to completely deplate and clean the liquid medicine after deplating, it is necessary to separate the upper conductive nail 141 and the lower conductive nail 142, but the normal state The lower upper clamping plate 121 and the lower clamping plate 122 are clamped together. In order to realize this function, in the present embodiment, a set for holding the upper clamping plate 121 and the lower clamping plate 122 is provided at the same position at the other end of the upper clamping plate 121 and the lower clamping plate 122. 122 is the locking assembly 15 in the open state. When deplating is required, the locking assembly 15 can keep the upper splint 121 and the lower splint 122 in a permanently opened state, thereby ensuring the thoroughness of the stripping and the potion after stripping. Cleanliness. The locking assembly is easy to use and simple to manufacture, and can keep the entire fixture in an open state stably, overcoming the high manufacturing cost, complicated operation, and the need for additional opening devices or artificially keeping the fixture open for traditional fixtures. Low plating efficiency and other issues.

The belt buckle fixture 1 provided by the utility model has a large hinged fitting surface of the shaft seat assembly 11, which can play the function of limit swing, and can effectively prevent the eccentric dislocation of the upper conductive nail 141 and the lower conductive nail 142 when they are stacked and docked, ensuring The accuracy of the alignment of the upper conductive nail 141 and the lower conductive nail 142 during overlapping and docking. At the same time, the setting of the locking assembly 15 can keep the upper splint 121 and the lower splint 122 in a permanently opened state, so that the chemical solution can be cleaned thoroughly after deplating and deplating, so that the upper conductive nail 141 and the lower conductive nail 142 can be maintained Reliable electrical conductivity ensures the quality of plate plating and meets the market's high-quality requirements for plate plating.

Specifically, as shown in FIGS. 1 to 3 , the locking component 15 may be a hook structure for buckle positioning, or a bolt structure, which is used to lock and position the opening width of the upper splint 121 and the lower splint 122 . In this embodiment, the lock assembly 15 includes a rotatable hook 151 and a hook 152 for hanging and fixing the hook 151. The hook 151 is rotatably connected to the upper splint 121 through the rotating shaft kit 16, and the hook 152 is fixed. Connected to the lower splint 122 . Through such setting, when it is necessary to make the upper clamping plate 121 and the lower clamping plate 122 no longer fit and clamp, first compress the elastic member 13 under the action of external force to separate the upper clamping plate 121 and the lower clamping plate 122, then turn the hook 151 to The hook 151 is hooked on the hook 152, so that the opened upper splint 121 and the lower splint 122 are locked and positioned, so that they are always kept open without any additional operations. Perform deplating treatment. The hook 152 is fixedly welded on the bottom surface of the lower splint 122, and the two ends stretch out from the two sides of the lower splint 122, so that the hook 151 is buckled, and the hook 151 that is rotatably connected with the upper splint 121 can be respectively arranged on two sides of the upper splint 121. The two single components on the side can also be an integral component, and the specific setting method can be selected according to the actual design requirements, and, under the condition of not compressing the elastic part 13, the hook 151 will not buckle the hook part 152, High reliability in use. The locking assembly 15 is simple in structure, easy to operate, and has good locking and positioning stability, which provides a guarantee for the deplating treatment of the upper conductive nail 141 and the lower conductive nail 142 .

Specifically, as shown in FIGS. 1 to 4 , the shaft assembly 16 that rotatably connects the hook 151 to the upper splint 121 can be: firstly, a fixed shaft is set on the upper splint 121 , and a fixed shaft that can accommodate the fixed shaft is set on the hook 151 . Then set the hook 151 on the two ends of the rotating shaft, so that the hook 151 can rotate; it is also possible to set the fixed shaft on the hook 151, and set accommodating holes on both sides of the upper splint 121 that can accommodate the fixed shaft , snap the fixed shaft into the accommodating hole, and enable the hook 151 to rotate. In this embodiment, the rotating shaft kit 16 includes a shaft sleeve 161 fixedly arranged on the upper splint 121 and a rotating shaft 162 pierced in the shaft sleeve 161. One end of the hook 151 is provided with a mounting hole 1511 through which the rotating shaft 162 passes. The rotating shaft 162 passes through the installation hole 1511 and the bushing 161 sequentially, and the two ends are fixed and limited by the snap ring 163 . During actual assembly, first align the mounting hole 1511 on the hook 151 with the hole on the shaft sleeve 161, then insert the rotating shaft 162 from one side, and finally buckle the snap ring 163 on both ends of the rotating shaft 162 for Prevent the hook 151 from falling off from the rotating shaft 162 . Through such setting, the rotating shaft 162 can rotate flexibly in the shaft sleeve 161, thereby driving the hook 151 to rotate, so that the locking part 1512 of the hook 151 is hooked on the hook 152 or released from the hook 152, realizing It realizes the opening or closing of the entire fixture. By adopting the cooperation of the axle sleeve 161 and the rotating shaft 162 to guide the rotation of the hook 151, because the contact area between the axle sleeve 161 and the rotating shaft 162 is large, it is ensured that the rotating shaft 162 will not shake when rotating, thereby ensuring that the hook 151 can be accurately aligned with the hook. Fastener 152 realizes hanging buckle.

Preferably, as shown in FIG. 1 to FIG. 4 , the hook 151 is in a "U" shape, its open end is sleeved on the rotating shaft 162 , and the other end is provided with a locking portion 1512 . The hook 151 is set in a U-shape to become an integral member, and then its open end is connected to the rotating shaft 162, while the other end is used to realize the buckle with the buckle 152. In this arrangement, the buckle is stable and reliable, and will not Loosening ensures the reliability of keeping the upper splint 121 and the lower splint 122 in an open state.

Specifically, as shown in FIG. 1 to FIG. 4 , the locking portion 1512 that is hooked with the hooking member 152 can be set into a hook shape, and in this embodiment, the locking portion 1512 is a gap opened on the hook 151 , through the notch to hang and accommodate the buckle 152 , and the locking portion 1512 is provided with a guide slope 1513 , so that the hook 151 and the buckle 152 can be hooked. In practical applications, since the entire fixture is installed vertically on the electroplating flybar, when an external force presses the elastic member 13, the hook 151 moves forward, and when the elastic member 13 is compressed to a certain distance, the movable hook 151 will Falling down under the action of the guide slope 1513, and under the guidance of the guide slope 1513, it just buckles the corresponding hanging fastener 152 installed on the lower splint 122. When the external force is removed, the upper splint 121 is opened outwards under the action of the elastic member 13, and at the same time Hook 151 also retreats thereupon, and after retreating to a certain distance, the breach on the hook 151 just in time buckles the hanging fastener 152 on the lower splint 122, and is hooked tightly under the effect of elastic member 13 elastic force simultaneously, is difficult for throwing off. At this time, the upper conductive nail 141 on the upper clamping plate 121 and the lower conductive nail 142 on the lower clamping plate 122 cannot be reset, and keep a small distance without contact, so that the clamp forms a permanent open state. When the upper conductive nail 141 and the lower conductive nail 142 need to be reset and closed, the elastic member 13 needs to be compressed again, and after the gap on the hook 151 breaks away from the buckle 152, an external force is applied to push the hook 151 upward, and then it can be removed. At this time, the tripping state should be kept until the external force of the compression elastic member 13 is cancelled, and the hook 151 moves together with the upper splint 121. When the upper conductive nail 141 and the lower conductive nail 142 are fully contacted and reset, the applied external force is released. Thereupon the hook 151 has not enough length to buckle the fastener 152, and now the clamp is in a closed state.

Specifically, as shown in FIGS. 1 to 5 , the axle seat assembly 11 includes an upper axle seat 111 fixedly arranged on an upper clamping plate 121 and a lower axle seat 112 fixedly arranged on a lower clamping plate 122. The upper axle seat 111 includes two oppositely arranged A connecting ear 1111 with a receiving groove 1112 is formed, and the lower shaft seat 112 is inserted in the receiving groove 1112, and a shaft hole 113 is opened on the connecting ear 1111 and the lower shaft seat 112, and a pin shaft 114 is pierced in the shaft hole 113, and the pin Both ends of the shaft 114 are connected with a limiting ring 115 . Through such arrangement, the pin shaft 114 realizes the hinge between the upper shaft seat 111 and the lower shaft seat 112 , and under the limit action of the limit ring 115 , the reliability of the hinge is ensured. The width of the receiving groove 1112 formed by the two connecting ears 1111 is slightly larger than the thickness of the lower shaft seat 112, so that when the lower shaft seat 112 is inserted into the receiving groove 1112, each contact surface can stick to each other, and the function of limiting the swing is played. , so that when the clamp is opened or clamped, the movement route will not be offset, thereby ensuring that the upper conductive nail 141 and the lower conductive nail 142 will not be eccentric when they are stacked and docked, and the docking is accurate. Of course, it can be understood that the number of receiving grooves 1112 on the upper shaft seat 111 is not limited to one, but can be set in multiples according to specific usage requirements, and the number of the lower shaft seat 112 can also be set to be the same as the number of receiving grooves 1112 .

Specifically, as shown in FIGS. 1 to 3 , in order to ensure the reliability of the elastic member 13 driving the upper clamping plate 121 and the lower clamping plate 122 to open or clamp, the upper clamping plate 121 and the lower clamping plate 122 are provided with stoppers for fixing. The positioning piece 17 of the elastic piece 13 is a convex positioning column or a concave positioning blind hole, and the elastic piece 13 is sleeved on the positioning column or inserted in the positioning blind hole. In this way, under the action of the positioning column or the positioning blind hole, the function of fixing and limiting the position of the elastic member 13 can be achieved, effectively preventing the elastic member 13 from moving, and ensuring that the upper splint 121 and the lower splint 122 are driven to open or clamp Movement reliability. In this embodiment, however, the positioning member 17 is set as a positioning column.

Preferably, the elastic member 13 is a spring. The spring is a standard part, easy to purchase, low in cost and long in service life. Of course, it can be understood that the elastic member 13 can also be made of rubber or silicone material, which can also satisfy the function of driving the upper clamping plate 121 and the lower clamping plate 122 to open or clamp.

Specifically, as shown in Figures 1 to 3, the same ends of the upper splint 121 and the lower splint 122 extend in the same direction to form a mounting portion 18, the mounting portion 18 is a plate structure, and the upper conductive nail 141 and the lower conductive nail 142 are respectively Set on the mounting part 18. Such setting increases the area supporting the upper conductive nail 141 and the lower conductive nail 142 , so that the strength of the upper conductive nail 141 and the lower conductive nail 142 is better without deformation. At the same time, the upper conductive nail 141 and the lower conductive nail 142 are arranged on the mounting part 18 of the plate structure, so that the upper and lower conductive nails can be accurately aligned, and the height of the conductive nails in the left and right directions can be kept consistent and on the same plane superior. In addition, the end of the installation part 18 is provided with an inner notch 181, thereby facilitating the deformation of the entire installation part 18, to ensure that when the plated plate is clamped, the upper conductive nail 141 and the lower conductive nail 142 can be completely in contact with the plated plate, Ensure the reliability of conduction. In this embodiment, there are two pairs of upper conductive nails 141 and lower conductive nails 142 , and the two upper conductive nails 141 and the two lower conductive nails 142 are located on two sides of the inner notch 181 .

Specifically, as shown in Figure 1, the upper splint 121 and the lower splint 122 are provided with an insulating sleeve 19 at one end of the upper conductive nail 141 and the lower conductive nail 142, and the upper conductive nail 141 and the lower conductive nail 142 are exposed to the insulation. Set 19 outside. Arranging in this way not only ensures the safety of electroplating, but also the setting of insulating cover 19 also avoids that the liquid medicine will cause damage to the upper splint 121 and the lower splint 122 when the conductive nail 141 and the lower conductive nail 142 are provided with Corrosion, which protects the fixture.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modification, equivalent replacement or improvement made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. a bracelet fixture, it is characterized in that, comprise middle part by axle bed member hinges, and can the train wheel bridge of involutory clamping and lower plate, elastic component is provided with between described train wheel bridge and described lower plate, the position that described train wheel bridge is identical with described lower plate one end is fixedly installed the upper conductive nail of foldable docking and lower conductive nail, and the position that the other end is identical is provided with the latch components for keeping described train wheel bridge and described lower plate to be in open configuration.

2. bracelet fixture as claimed in claim 1, it is characterized in that, described latch components comprises rotating hook and for buckling fixing hanging fastener for described hook, described hook is rotationally connected with on described train wheel bridge by rotary shaft external member, and described hanging fastener is fixedly connected on described lower plate.

3. bracelet fixture as claimed in claim 2, it is characterized in that, described rotary shaft external member comprises the axle sleeve be fixedly installed on described train wheel bridge and the rotating shaft be located in described axle sleeve, one end of described hook offers the open holes passed for described rotating shaft, described rotating shaft is successively through described open holes and axle sleeve, and two ends are fixed spacing by snap ring, the other end of described hook offers the latch part holding described hanging fastener for hook.

4. bracelet fixture as claimed in claim 3, is characterized in that, described hook is in " U " shape, and its opening end is set in described rotating shaft, and the other end is provided with described latch part.

5. bracelet fixture as claimed in claim 3, it is characterized in that, described latch part is be opened in the breach on described hook, and described latch part is provided with guiding surface.

6. as the bracelet fixture in claim 1 to 5 as described in any one, it is characterized in that, described axle bed assembly comprises the upper axle bed be fixedly installed on described train wheel bridge and the lower axle bed be fixedly installed on described lower plate, described upper axle bed comprises two and is oppositely arranged the engaging lug being formed with holding tank, described lower axle bed is inserted in described holding tank, described engaging lug and described lower axle bed all offer axis hole, and be equipped with bearing pin in described axis hole, the two ends of described bearing pin are connected with spacing ring.

7. bracelet fixture as claimed in claim 1, it is characterized in that, described upper and lower clamping plate are provided with the positioning element for fixing spacing described elastic component, described positioning element is the locating dowel of projection or recessed Blind locating holes, and described elastic component is sheathed in described locating dowel or is inserted in described Blind locating holes.

8. the bracelet fixture as described in claim 1 or 7, is characterized in that, described elastic component is spring.

9. as the bracelet fixture in claim 1 to 5 as described in any one, it is characterized in that, one end that described train wheel bridge is identical with described lower plate has extended to form installation portion respectively in the same way, described installation portion is plank frame, and described upper conductive nail and described lower conductive nail are arranged on described installation portion respectively.

10. bracelet fixture as claimed in claim 9, it is characterized in that, one end that described train wheel bridge and described lower plate are provided with described upper conductive nail and described lower conductive nail is all arranged with insulation covering, and described upper conductive nail and described lower conductive nail are all exposed to outside described insulation covering.