CN-224233124-U - Terminal clamping device and pin inserting machine

CN224233124UCN 224233124 UCN224233124 UCN 224233124UCN-224233124-U

Abstract

The utility model provides a terminal clamping device which comprises a clamping part, a mounting part and a vacuum generating system, wherein the clamping part comprises a terminal accommodating cavity for accommodating and clamping a terminal, the mounting part is used for connecting the clamping part and the vacuum generating system, the vacuum generating system is used for generating vacuum negative pressure to adsorb the terminal, the shape of the terminal accommodating cavity is matched with the shape of the root of the terminal, and the width of the terminal accommodating cavity is slightly larger than the width of the root of the adsorbed terminal. The utility model also provides a pin inserting machine comprising the terminal clamping device. The utility model adopts a vacuum adsorption mode to clamp the terminal to replace the traditional mode of clamping the terminal by adopting an elastic mechanism, so as to solve the problems of cleanliness and needle dropping and needle missing.

Inventors

ZHANG RUILI
Zhao Fangya
Gu Liangdong
GU YUEHUA

Assignees

上海海拉电子有限公司

Dates

Publication Date: 20260512
Application Date: 20250523

Claims (7)

1. A terminal clamping device is characterized by comprising a clamping part, an installation part and a vacuum generating system; the clamping part comprises a terminal accommodating cavity for accommodating and clamping the terminal; The mounting part is used for connecting the clamping part and the vacuum generating system; the vacuum generating system is used for generating vacuum negative pressure and adsorbing the terminals; the shape of the terminal accommodating cavity is matched with the shape of the root of the terminal; the width of the terminal accommodating cavity is slightly larger than the width of the absorbed terminal root.
2. The terminal clamping device according to claim 1, wherein the vacuum generating system comprises: a vacuum generator and a vacuum pressure monitor; The vacuum pressure monitor is used for monitoring the negative pressure value of the vacuum; the pressure monitor is connected with the vacuum generator through an air pipe; the installation part is connected with the vacuum generator through an air pipe.
3. The terminal holding device according to claim 1, wherein a single-side gap a is provided between one side of the terminal accommodating chamber and the terminal to be sucked, wherein a has a value in the range of 0.07mm to 0.13mm.
4. A terminal clamping device according to claim 3, wherein a = 0.1mm.
5. The terminal clamping device according to claim 2, wherein a threshold value is set on the vacuum pressure monitor, and an alarm is triggered when the value of the negative pressure monitored by the vacuum pressure monitor is lower than the threshold value.
6. The terminal holding device according to claim 1, wherein the holding portion is made of steel, one end of the holding portion is for holding the terminal, and the other end of the holding portion is inserted into a corresponding hole of the mounting portion and fixed with a fixing member.
7. A pin machine comprising a terminal clamping device as claimed in any one of claims 1 to 6.

Description

Terminal clamping device and pin inserting machine Technical Field The present utility model relates to a terminal clamping device, and more particularly, to a terminal clamping device in a solderless terminal pin machine. Background In the existing pin inserting machine, whether a split chuck or an integrated chuck is adopted, all terminal clamping modes are clamped by elasticity. The pin machine works in a time sequence that the clamping head clamps the terminal, then cuts the terminal connecting material belt to separate the terminal from the material belt, and finally clamps the pin with the terminal downwards. Because the clip is relatively large, it tends to clip the top of the terminal when it is initially held, otherwise the clip will interfere with cutting, and the terminal force surface will be on the lower shoulder when the pin is inserted down, thus causing slippage/friction in the clip during insertion. The friction process often generates metal scraps, and as the cleanliness of products is higher and higher in the current automobile electronic industry, the falling scraps are light and influence the cleanliness requirement of the products, and the falling scraps are heavy and are likely to cause short circuit of the products and influence the quality and the functions of the products. In addition, because the terminals tend to be thin, with a maximum dimension of 0.8mm, the means of elastic clamping tend not to provide a signal to the device as to whether it is clamped. Therefore, when the pins are inserted, if the pin is dropped, the pin is less, and the like, the equipment cannot identify, so that defective products cannot be found in time, and even the defective products possibly flow to the client. Disclosure of utility model In order to overcome the technical defects, the utility model aims to provide a terminal clamping device, which is characterized by comprising a clamping part, a mounting part and a vacuum generating system; the clamping part comprises a terminal accommodating cavity for accommodating and clamping the terminal; The mounting part is used for connecting the clamping part and the vacuum generating system; the vacuum generating system is used for generating vacuum negative pressure and adsorbing the terminals; the shape of the terminal accommodating cavity is matched with the shape of the root of the terminal; the width of the terminal accommodating cavity is slightly larger than the width of the absorbed terminal root. Further, the vacuum generating system includes: a vacuum generator and a vacuum pressure monitor; The vacuum pressure monitor is used for monitoring the negative pressure value of the vacuum; the pressure monitor is connected with the vacuum generator through an air pipe; the installation part is connected with the vacuum generator through an air pipe. Further, a unilateral gap a is arranged between one side of the terminal accommodating cavity and the adsorbed terminal, wherein the value range of a is 0.07mm-0.13mm. Further, a=0.1 mm. Further, a threshold value is set on the vacuum pressure monitor, and when the negative pressure value monitored by the vacuum pressure monitor is lower than the threshold value, an alarm is triggered. Further, the clamping portion is made of steel, one end of the clamping portion is used for clamping the terminal, and the other end of the clamping portion is inserted into a corresponding hole of the mounting portion and fixed by the fixing piece. The application also discloses a pin inserting machine, which comprises the terminal clamping device. Compared with the prior art, the application has the following advantages: (1) Non-contact adsorption The size of the opening of the vacuum tube is slightly larger than that of the terminal, so that mechanical friction of traditional elastic clamping is avoided, and generation of metal scraps is eliminated from the root. (2) Airflow debris management The vacuum airflow actively adsorbs residual scraps (such as cutting residues) to prevent the scraps from falling to the PCBA board, so that the requirements of high cleanliness of automobile electronics and the like are met. (3) Signal detection and quality monitoring And identifying the vacuum signal difference, namely judging that the needle dropping/needle missing is performed in real time by forming a significant vacuum degree difference between the terminal adsorption state and the non-adsorption state, and preventing defective products from flowing into the next working procedure or the client. Drawings FIG. 1 is a schematic diagram of a prior art pin process; FIG. 2 is a schematic view of a terminal clamping device according to an embodiment of the present disclosure; FIG. 3 is a schematic view of a process of clamping a terminal by the terminal clamping device disclosed by the application; Reference numerals: 1. The device comprises a clamping part, a mounting part, a vacuum generating system, a vacuum pressure monitor and a v