CN101386119A - A circuit board holder - Google Patents

Abstract

The invention discloses a circuit board clamp body, which comprises a left jaw, a right jaw, a left fixing plate, a right fixing plate, a connecting rod and a connecting plate, and the left fixing plate and the right fixing plate are connected through the connecting rod and the connecting plate , the connecting plate is located in the middle of the two connecting rods, the left jaw is sleeved on the connecting rod, the right jaw is fixed to the fixed plate, and the left jaw and the right jaw are opened and closed through a spring mechanism and a traction mechanism; Features a stand with vibrating wheels. The advantages of the present invention are: free adjustment of circuit boards of different sizes can be realized, and the application range is wide; the clamping and dismounting are flexible and convenient by adopting spring elastic force; the frame is formed by combination, and the structure is simple; Cooperating with the rotation to realize the vibration of the clamp body, the required power is small and the efficiency is high.

Description

A circuit board holder

technical field

The invention relates to the technical field of non-destructive dismantling of discarded circuit boards, in particular to a clamping body used for mounting and removing circuit boards.

Background technique

Printed circuit board (Printed Curcuit Board, referred to as PCB, or Printed wiring Board, referred to as PWB) is an important part of electronic information products, household appliances, etc. my country is a big country in the production of circuit boards in the world, and tens of thousands of tons of waste circuit boards are produced in the annual production process; with the continuous upgrading of electronic and electrical products, a large number of electronic and electrical products have been eliminated, and printed circuit boards, one of its key components, have also followed is deprecated. From the perspective of the total amount of discarded circuit boards, it is about 70 million tons per year. On the one hand, waste circuit boards are an important source of recycled copper, aluminum and various precious metals. On the other hand, most of the components on waste circuit boards are in good condition, and their service life is far from over, so they can be reused. Therefore, from Recycling and reusing materials from waste circuit boards is an important development direction in the future. However, because waste circuit boards contain some toxic and harmful substances, if the recycling method is unreasonable, waste printed circuit boards will also cause huge pressure on society and the environment. Therefore, it is necessary to develop efficient, reliable and environmentally friendly waste circuit board resource recycling And reuse technology and equipment, reducing the technical difficulty in the separation of components of waste circuit boards and subsequent processing, reducing the cost of subsequent processing, and improving the efficiency of separation have important economic and social benefits. In order to reduce the technical difficulty of separating the components of waste circuit boards and ensure the non-destructive disassembly of components as much as possible, it is very necessary to quickly separate the components of the entire board from the PCB substrate of the circuit board before the printed circuit board is shredded.

Chinese invention patent CN1590032A proposes an electronic component carrier for removing electronic components on a circuit board, including a clamper fixed on a fixed frame for clamping the circuit board on the fixed frame for reflow When the temperature in the furnace is higher than the predetermined temperature, an impactor is used to shake off the electronic components on the circuit board, and the carrier is used to carry the electronic components shaken off from the circuit board. Its disadvantages are: due to its material characteristics (the base material is mainly made of epoxy resin, glass fiber, etc. through a composite process, it becomes softer at the melting temperature of the solder, and cannot provide uniform resilience for all parts of the circuit board. .In order to obtain sufficient resilience, the impactor bracket must push the circuit board very high, and the size of the inserted components is very limited; and it is also necessary to manually adjust the clamping mechanism to realize the clamping of circuit boards of different sizes .

Contents of the invention

In order to improve the dismantling efficiency of discarded circuit boards and improve the non-destructive rate of components after dismantling, the present invention provides a circuit board clamping body. The clamp is specifically used in conjunction with non-destructive dismantling equipment for circuit boards, which can realize the combination of manual semi-automatic clamping and fully automatic separation of circuit boards, and realize assembly line production operations.

The invention provides a circuit board clamp body, which comprises a left jaw, a right jaw, a left fixing plate, a right fixing plate, a connecting rod and a connecting plate, and the left and right fixing plates are connected through the connecting rod and the connecting plate. The connecting plate is located in the middle of the two connecting rods, a bracket is connected under the connecting plate, and a vibrating wheel is arranged at the free end of the bracket. The length of the bracket makes the vibration wheel at the free end of the bracket contact with the eccentric wheel in the vibration unit, so that the rotation of the eccentric wheel can drive the vibration wheel to rotate and drive the clamp body to move up and down, so as to realize the vibration of the clamp body during the rotation process effect.

The vibration unit is located under the circuit board clamp body. The vibrating unit includes a vibrating shaft, an eccentric wheel and a vibrating motor. The eccentric wheel is fixed on the vibrating shaft and cooperates with the vibrating wheel at the free end of the clamp body support, and the vibrating motor controls the vibrating frequency.

The right jaw is fixed on the right fixing plate, and the left jaw is sleeved on two connecting rods and can slide freely along the connecting rods. The inner walls of the left jaw and the right jaw are provided with curved surface grooves, the grooves are used to install and fix the circuit board, and the opening and closing between the left jaw and the right jaw are realized by a spring mechanism and a traction mechanism.

The spring mechanism is an extension spring fixed between the left and right jaws or a compression spring fixed between the left jaw and the left fixing plate.

The traction mechanism is a stay rope fixed on the outside of the left jaw, or a rack and pinion mechanism fixed on the outside of the left jaw.

The two ends of the left and right fixing plates are provided with through holes, and the polished rod bolts pass through the through holes and are fixedly connected with the transmission chain, realizing the connection between the clamp body and the transmission chain, and at the same time limiting the maximum vibration amplitude of the clamp body.

The diameter of the through hole is larger than that of the polished rod bolt.

The advantages of the present invention are:

1. The jaws on the clamp body can slide freely on the connecting rod, which can realize free adjustment when clamping circuit boards of different sizes, and has a wide range of applications;

2. The clamp body clamps the circuit board through the spring force, which is flexible and convenient for loading and unloading;

3. Through the rotation of the vibrating wheel on the bracket below the clip body and the eccentric wheel in the vibration unit, the clip body vibrates the circuit board. The power required for the vibration is small and the efficiency is high.

Description of drawings

Fig. 1 is a schematic diagram of the tension spring clamping structure of the circuit board clamp of the present invention;

Fig. 2 is a structural schematic diagram of the vibration unit of the present invention;

Fig. 3 is a schematic diagram of the clamping structure of the circuit board clamping body of the present invention;

Fig. 4 is a structural schematic diagram of the delivery unit of the present invention;

Detailed ways

The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

The present invention provides a circuit board clamp body 1, as shown in Figure 1, comprising a left jaw 102, a right jaw 101, a left fixing plate 103, a right fixing plate 104, a connecting rod 105 and a connecting plate 106, and a left fixing plate 103 It is connected with the right fixed plate 104 by two connecting rods 105 and a connecting plate 106, and the connecting plate 106 is located in the middle of the two connecting rods 105, and two supports 108 are connected under the two ends of the connecting plate 106, each support 108 free ends are provided with a vibration wheel 109. The length of the bracket 108 is just enough to make the vibrating wheel 109 at the free end of the bracket 108 contact and cooperate with the eccentric wheel 202 in the vibrating unit 2, as shown in Fig. Moving up and down, the vibrating effect on the clamp body 1 is realized during the rotation of the vibrating wheel 109 .

The vibration unit 2 is located below the circuit board holder body 1 , as shown in FIG. 2 , the vibration unit 2 is mainly composed of a vibration shaft 201 , an eccentric wheel 202 and a vibration motor 203 . Two eccentric wheels 202 are respectively fixed on the vibrating shaft 201, and their mutual positions are matched with the vibrating wheels 109 at the free ends of the two brackets 108 on the clamp body 1. When installing, the eccentric wheels 202 are in contact with the vibrating wheels 109, and the vibrating motor 203 controls the vibration frequency.

The right jaw 101 is fixed on the right fixing plate 104 , and the left jaw 102 is sleeved on two connecting rods 105 , and can slide freely along the connecting rods 105 . The inner walls of the left jaw 102 and the right jaw 101 are provided with curved grooves 107, the grooves 107 are used to install and fix circuit boards, and the left jaw 102 and the right jaw 101 are opened and closed by a spring mechanism and a traction mechanism.

Described spring mechanism is the extension spring 110 that is fixed between left and right jaws, and as Fig. 1, left jaw 102 slides along connecting rod 105 under the pulling force of extension spring, approaches to right jaw 101, will be installed in groove The circuit board in 107 is clamped and fixed.

Described spring mechanism also can be stage clip 114, and as shown in Figure 3, stage clip 114 is fixed between left fixed plate 103 and left jaw 102, and left jaw 102 is along connecting rod 105 under the pressure effect of stage clip 114. Slide to approach the right jaw 101, clamp and fix the circuit board installed in the groove 107.

The traction mechanism is a stay rope 111 fixed on the outside of the left jaw 102 , or a rack and pinion mechanism fixed on the outside of the left jaw 102 .

When the traction mechanism is a stay cord 111 fixed on the outside of the left jaw 102, as shown in Figures 1 and 3, a stay cord 111 is fixed on the outside of the left jaw 102, and the stay cord 111 is passed through the left fixing plate 103. The wire groove 112 is manually controlled by the pull cord 111 to make the left jaw 102 slide along the connecting rod 105, and realizes the opening and closing between the left and right jaws together with the spring structure.

The two ends of left and right fixed plate 103,104 are provided with through hole 113, as shown in Figure 1 and Figure 3, polished rod bolt passes through hole 113 and is fixedly connected with transmission chain 301, has realized clamp body 1 and transmission chain 301. The connection between them also limits the maximum vibration amplitude of clamp body 1.

The diameter of the through hole 113 is larger than the diameter of the polished rod bolt.

The transmission chain 301, the transmission wheel 302 and the transmission motor 303 together form the delivery unit 3, as shown in Figure 4, the transmission wheel 302 and the transmission chain 301 are engaged and connected, and the transmission wheel 302 is fixed on the ground by the sprocket support seat 304, At the same time, one of the transmission wheels 302 is connected with a transmission motor 303, and the transmission motor 303 is used to drive the transmission wheel 302 to rotate, and then the transmission chain 301 is driven accordingly.

Claims (9)

1, a kind of circuit board clipping body, it is characterized in that: comprise left jaw, right jaw, left fixed head, right fixed head, connecting rod and connecting plate, be connected with connecting plate by connecting rod between described left fixed head, the right fixed head, described connecting plate is positioned in the middle of two connecting rods, left side jaw is socketed on the connecting rod, right jaw and right fixed head are fixed, and left jaw and right jaw are realized folding by spring mechanism and haulage gear; The connecting plate below is provided with the support of band vibrations wheel.

2, according to the described a kind of circuit board clipping body of claim 1, it is characterized in that: described spring mechanism is meant the extension spring that is arranged between the jaw of the left and right sides.

3, according to the described a kind of circuit board clipping body of claim 1, it is characterized in that: described spring mechanism is meant the stage clip that is arranged between left jaw and the left side fixed head.

4, according to the described a kind of circuit board clipping body of claim 1, it is characterized in that: described haulage gear is meant the stay cord that is fixed on the jaw outside, a clamp body left side.

5, according to claim 1 or 4 described a kind of circuit board clipping bodies, it is characterized in that: clamp body left side fixed head is provided with the unwrapping wire groove, and described stay cord is by the unwrapping wire groove.

6, according to claims 1 described a kind of circuit board clipping body, it is characterized in that: described haulage gear is meant the pinion and rack that is fixed on the jaw outside, a clamp body left side.

7, according to the described a kind of circuit board clipping body of claim 1, it is characterized in that: left jaw and right jaw inwall are equipped with groove.

8, according to the described a kind of circuit board clipping body of claim 1, it is characterized in that: the two ends of fixed head are provided with through hole, and the polished rod bolt passes clamp body fixed head through hole and driving chain is fixed.

9, described according to Claim 8 a kind of circuit board clipping body, it is characterized in that: the diameter of through hole is greater than the diameter of polished rod bolt.

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