CN114079215A

CN114079215A - Press-contact mechanism for working device

Info

Publication number: CN114079215A
Application number: CN202010849070.XA
Authority: CN
Inventors: 李子玮; 李思宏
Original assignee: Hongjin Precision Co ltd
Current assignee: Hongjin Precision Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2022-02-22

Abstract

The invention provides a crimping mechanism of an operation device, which comprises a crimping unit and a limiting unit, wherein a driving source is arranged between a first moving part and a second moving part of the crimping unit to drive the first moving part and the second moving part to move reversely along an operation axis, an operation piece is assembled at the bottom of the first moving part and is used for crimping an electronic element, the limiting unit is assembled with at least one limiting piece on an actuating tool, the actuating tool is driven by the second moving part of the crimping unit to move synchronously, and after the limiting piece is limited by bearing, the operation piece can be prevented from moving reversely along the operation axis, so that the operation piece is indeed crimped with the electronic element to execute preset operation.

Description

Press-contact mechanism for working device

Technical Field

The present invention relates to a pressing mechanism which can ensure that an operating member is pressed and connected with an electronic element, so as to improve the operating quality and save the cost.

Background

In the present day, the number of contacts of an electronic device is increasing to several tens of contacts, and correspondingly, the test socket of the test apparatus must be configured with the same number of probes to electrically contact the contacts of the electronic device; because the inside of the probe has the spring, in order to make the contact of the electronic element and the probe of the test seat electrically contact, the test device utilizes a lower press to press the electronic element with a preset lower pressure, so that the electronic element compresses the spring of the probe, but the over-time and the under-time of the lower press can influence the test quality, for example, when the test seat has tens of probes, the lower press must press the electronic element with a larger lower pressure to ensure that tens of contacts of the electronic element are actually contacted with tens of probes of the test seat, thereby avoiding the electronic element from being judged as a defective product by mistake.

Referring to fig. 1, the testing apparatus is configured with a circuit board 12 and a testing base 13 electrically connected to a machine 11, and the testing base 13 is configured with tens of probes 131 for supporting and testing an electronic component 14; a pressing device 16 driven by the moving arm 15 to move is disposed above the testing seat 13, a diaphragm 161, an air chamber 162 and a lower pressing tool 163 are disposed inside the pressing device 16, after the air supplying device (not shown) injects air into the air chamber 162, the diaphragm 161 protrudes and deforms downward, and pushes the lower pressing tool 163 to move downward in the Z direction to press and connect the electronic component 14, so that the electronic component 14 performs the testing operation in the testing seat 13; however, when the springs (not shown) of the tens of probes 131 of the test socket 13 are compressed, the tens of probes 131 generate a large reaction force on the electronic component 14, and the large reaction force pushes the whole set of the crimper 16 to perform a reverse Z-direction displacement through the electronic component 14, so that the crimper 16 cannot crimp the electronic component 14 with a predetermined pressing force, and thus some contacts of the electronic component 14 cannot actually contact the probes 131 of the test socket 13, thereby affecting the test quality of the electronic component.

Disclosure of Invention

The invention aims to: provided is a crimping mechanism for a working device, which solves the above technical problems in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that:

a crimping mechanism of a working device, comprising:

a pressure welding unit: the electronic device comprises a first moving part, a second moving part, a driving source and an operating part, wherein the first moving part and the second moving part are oppositely arranged along an operating axis;

a limiting unit: the pressing device comprises an actuating tool and a limiting part, wherein the actuating tool is assembled on the second moving part of the pressing unit to drive the second moving part to perform reverse displacement along the operation axis, and the limiting part is arranged on the actuating tool to limit the reverse displacement of the operation part along the operation axis when the limiting part is limited in bearing and blocking.

The crimping mechanism of the operation device, wherein the first moving part of the crimping unit is provided with an accommodating space along the operation axis to accommodate the second moving part, the driving source comprises an air chamber and an air channel, the air chamber is formed between the inner bottom surfaces of the accommodating space of the second moving part and the first moving part, and the air channel is arranged on the first moving part or the second moving part to input air into the air chamber.

In the pressing connection mechanism of the operation device, the actuating device of the limiting unit is provided with at least one first member to be assembled on the second movable member, and the first member is used for assembling the limiting part.

The pressing mechanism of the working device, wherein the actuating device of the limiting unit includes a first member, a second member and a third member, the first member is assembled on the second movable member, the second member is assembled on the first member, the third member is assembled on the second member, and the third member is used for assembling the limiting part.

The first moving member of the crimping unit is provided with a nesting block with a guide hole, and the second member is arranged in the guide hole in a penetrating manner.

The crimping mechanism of the operating device further comprises an adjusting unit for finely adjusting the operating piece, the adjusting unit comprises a first adjusting piece, a second adjusting piece and a connecting piece, the first adjusting piece is provided with a first floating connection portion, the second adjusting piece is provided with a second floating connection portion, the second floating connection portion is matched with the first floating connection portion, and the connecting piece is connected with the second adjusting piece and the actuating tool or the second moving part.

The crimping mechanism of the operating device further comprises a resetting unit, wherein the resetting unit is provided with a cover plate on the first adjusting piece, and a first elastic piece is arranged between the cover plate and the actuating tool or the second moving piece.

The crimping mechanism of the operating device further comprises a resetting unit, and at least one second elastic piece is arranged between the actuating tool and the first movable piece of the resetting unit.

The crimping mechanism of the operation device further comprises at least one blocking part, and the blocking part is arranged on the operation device, the bedplate or the frame and used for blocking the limiting part of the limiting unit.

The crimping mechanism of the operation device further comprises at least one blocking part, and the blocking part is assembled on the operation device, the bedplate or the rack and used for blocking the limiting part of the limiting unit.

The present invention provides a pressing mechanism of an operating device, including a pressing unit and a limiting unit, wherein the pressing unit is provided with a driving source between a first moving member and a second moving member to drive the first moving member and the second moving member to move along an operating axis in a reverse direction, the bottom of the first moving member is provided with an operating member for pressing an electronic element, the limiting unit is provided with at least one limiting member on an actuating member, the actuating member is driven by the second moving member of the pressing unit to move synchronously, and after the limiting member is limited by the limiting member, the first moving member which is relatively arranged can be limited by the second moving member to prevent the operating member from retracting and moving along the operating axis, so that the operating member can surely press the electronic element to execute preset operation, and further improve the operating quality.

The second advantage of the present invention is to provide a pressing mechanism of an operating device, wherein the pressing unit drives the first moving member and the second moving member to move in opposite directions along the operating axis by a driving source, so that the first moving member and the second moving member respectively drive the operating member and the limiting unit to move in opposite directions, thereby effectively reducing driving components and facilitating assembly, which is not only beneficial to space allocation, but also saves cost.

The third advantage of the present invention is to provide a pressing mechanism of an operating device, further comprising an adjusting unit, wherein the first adjusting member and the second adjusting member of the adjusting unit are provided with a first floating connection portion and a second floating connection portion which are mutually matched, the second adjusting member is connected with the actuating tool or the second moving member by a connecting member, the actuating tool or the second moving member drives the second adjusting member to perform a floating displacement (such as an X direction, a Y direction or a horizontal angle theta) through the connecting member to release the latch, so that the first moving member can drive the operating member to perform the floating displacement, and further, the position of the operating member is finely adjusted, so that the operating member can be accurately pressed on the electronic element, and further, the use efficiency is improved.

Drawings

Fig. 1 is a schematic view showing a test socket and a crimper of a conventional working apparatus.

Fig. 2 is a sectional view of the first embodiment of the crimping mechanism of the invention.

Figure 3 is a side view of a first embodiment of the crimping mechanism of the present invention.

Fig. 4 is a schematic view of the first embodiment of the crimping mechanism of the present invention applied to a testing apparatus.

FIG. 5 is a schematic view (one) of the use of the crimping mechanism of the present invention.

Fig. 6 is a schematic view (ii) showing the use of the crimping mechanism of the present invention.

Fig. 7 is a schematic diagram (iii) of the use of the crimping mechanism of the present invention.

FIG. 8 is a schematic view of a second embodiment of the crimping mechanism of the present invention.

Description of reference numerals: [ Prior Art ] A machine table 11; a circuit board 12; a test seat 13; a probe 131; an electronic component 14; a moving arm 15; a crimper 16; a membrane 161; an air chamber 162; a hold-down fixture 163; the first movable member 21; a first surface 211; an accommodating space 212; a mounting surface 213; a nesting block 214; a guide hole 215; a gas chamber 216; an air duct 217; an extension 218; a relief portion 219; a second movable member 22; a second surface 221; a connection face 222; a working member 23; a pressing part 231; a stop surface 232; a first positioning member 233; a second circuit board 234; a second probe 235; an actuator 24; a first member 241; a second member 242; the third member 243; a stopper 25; a first adjuster 26; the first floating portion 261; a receiving groove 262; a bottom plate 263; a first via 264; a second adjuster 27; a second floating portion 271; a second through hole 272; a connecting member 28; the first elastic member 29; a cover plate 30; the second elastic member 31; a column 32; a catch block 33; an operating axis L; a frame 40; a testing device 50; a first circuit board 51; a test socket 52; a first probe 521; a bearing surface 522; a second positioning member 523; a catch member 524; a platen 60; and an electronic component 70.

Detailed Description

To further understand the present invention, a preferred embodiment is shown in the drawings, and the following detailed description is given:

referring to fig. 2 and fig. 3, the pressing mechanism of the present invention includes a pressing unit and a limiting unit, and further includes an adjusting unit and a resetting unit according to the operation requirement.

The compression unit includes a first movable member 21, a second movable member 22, a driving source and an operating member 23, the first movable member 21 may be a cylinder body or a panel, and is displaced along an operating axis L, and a receiving space 212 is concavely provided on a first surface 211 along the operating axis L, and one surface opposite to the first surface 211 is used as an assembly surface 213, in this embodiment, the first movable member 21 is a cylinder body, and a fitting block 214 is provided on a side of the first movable member 21, and the fitting block 214 is provided with a guide hole 215.

The second movable member 22 and the first movable member 21 are disposed relatively along the operation axis L, the second movable member 22 can move reversely along the operation axis L, further, the second movable member 22 can be a panel, a piston or a diaphragm, in this embodiment, the second movable member 22 is a piston and can be movably assembled in the accommodating space 212 of the first movable member 21, an air chamber 216 is formed between the second surface 221 of the second movable member 22 and the inner bottom surface of the accommodating space 212, and in addition, one surface of the second movable member 22 opposite to the second surface 221 is used as the connection surface 222.

The driving source is used for driving the first movable member 21 and the second movable member 22 to move in opposite directions, and further, the driving source may be an airbag, a piezoelectric element, or an air chamber and an air duct, as long as the driving source can drive the first movable member 21 and the second movable member 22 to move in opposite directions, which is not limited to this embodiment. For example, the driving source is an airbag, and the driving source can be directly assembled and connected to the first surface 211 of the first movable element 21 and the second surface 221 of the second movable element 22, so as to drive the first movable element 21 and the second movable element 22 to move in opposite directions when the airbag is inflated and expanded, and the accommodating space 212 and the air chamber 216 of the first movable element 21 can be omitted; for example, the driving source includes an air chamber disposed between an inner bottom surface of the accommodating space 212 of the first movable member 21 and the second surface 221 of the second movable member 22, and an air passage disposed in the first movable member 21 or the second movable member 22, and the air passage inputs air into the air chamber to drive the first movable member 21 and the second movable member 22 to move in opposite directions. In the present embodiment, the driving source includes an air chamber 216 and a ventilation channel 217, the air chamber 216 is located between the inner bottom surface of the accommodating space 212 of the first movable member 21 and the second surface 221 of the second movable member 22, the ventilation channel 217 is located in the first movable member 21, one end of the ventilation channel 216 is connected to the first movable member 21, and the other end of the ventilation channel is connected to an air supply device (not shown) and an air pressure detector, so as to input air into the air chamber 216.

The operating element 23 is mounted on the first movable element 21 to perform a predetermined operation on the electronic device, and further, the operating element 23 may be a pressing tool, a testing tool, a hot pressing tool, or a printing tool; for example, the working member 23 is a lower pressing tool to perform a pressing operation on the electronic component; for example, the working device 23 is a testing tool and is equipped with a testing module (including circuit board and probe) to perform testing operation on the electronic device; the working member 23 is, for example, a hot press, and is equipped with a heating member to perform a hot pressing operation on the electronic component. In this embodiment, the operating member 23 is a pressing member, which is mounted on the mounting surface 213 of the first moving member 21, and is provided with at least one pressing portion 231 for performing a pressing operation on the electronic device, and the pressing portion 231 is configured with a temperature controller (not shown) according to an operation requirement, wherein the temperature controller may be a cooling chip or a heating element. The working member 23 is provided with a blocking surface 232 and a first positioning member 233 on the periphery of the pressing portion 231, the blocking surface 232 is higher than the pressing portion 231, and the first positioning member 233 serving as a positioning pin is protruded from the blocking surface 232.

The limiting unit comprises an actuating tool 24 and a limiting part 25, wherein the actuating tool 24 is assembled on the second movable part 22 of the crimping unit so as to drive the second movable part 22 to perform reverse displacement along the operation axis L; furthermore, the actuator 24 includes at least one first member 241 assembled to the second movable member 22 in a locking or straddling manner, which allows the second movable member 22 to drive the first member 241 to move synchronously; in the present embodiment, the actuator 24 includes a first member 241, a second member 242, and a third member 243, and further, the first member 241, the second member 242, and the third member 243 may be integrally formed or respectively independent members; in the present embodiment, the first member 241, the second member 242, and the third member 243 of the actuator 24 are independent members, the first member 241 is a panel and horizontally disposed and locked on the connection surface 222 of the second movable element 22, the second member 242 is a guide rod disposed in the Z-axis direction, one end of the guide rod is assembled to the first member 241, the other end of the guide rod penetrates through the guide hole 215 of the first movable element 21 to allow the first movable element 21 to stably move along the second member 242, and the third member 243 is a frame disposed in the Y-direction and assembled to the other end of the second movable element 242, so that the second movable element 22 can drive the first member 241, the second member 242, and the third member 243 to synchronously and reversely move.

The limiting piece 25 is arranged on the actuating tool 24, so that when the limiting piece 25 is limited in bearing, the first movable piece 21 which is relatively arranged can be limited by the second movable piece 22 to prevent the operating piece 23 from retracting and moving; furthermore, the position limiting member 25 and the actuating member 24 can be integrally formed or can be independent components, and the position limiting member 25 can be disposed on the actuating member 24 in the X direction or the Z direction; for example, the limiting element 25 may be a panel and is disposed on the third member 243 of the actuator 24 in the X direction; for example, the stopper 25 may be an L-shaped member and disposed on the first member 241 or the third member 243 of the actuator 24 in the Z direction, and when the stopper 25 is disposed on the first member 241, the third member 243 of the actuator 24 may be omitted.

The adjusting unit comprises a first adjusting member 26, a second adjusting member 27 and a connecting member 28, and further comprises a first elastic member 29 and a cover plate 30, the first adjusting member 26 is provided with a first floating part 261, the second adjusting member 27 is provided with a second floating part 271, the second floating part 271 is matched with the first floating part 261, further, the first floating part 261 and the first adjusting member 26 can be integrally formed or respectively independent elements, for example, the first adjusting member 26 can be integrally formed as a first floating part 261 of an arc convex block; for example, the first adjuster 26 may be fitted with a panel having a first floating portion 261 that is a bead; the second floating portion 271 and the second adjusting member 27 may be integrally formed or may be separate components; in addition, the second floating connection portion 271 and the first floating connection portion 261 can be in an arc shape or a V shape which are matched with each other, and the shape of the second floating connection portion is that the first adjusting member 26 and the second adjusting member 27 can be matched and clamped with each other only when the second adjusting member 27 is not floated, and the shape is not limited. The connecting member 28 connects the second adjusting member 27 and the actuating member 24 or the second movable member 22, and the actuating member 24 or the second movable member 22 drives the second adjusting member 27 to perform a floating displacement (such as an X direction, a Y direction or a horizontal angle Θ) through the connecting member 28 to release the latch, so that the first movable member 21 can drive the working member 23 to perform the floating displacement, thereby finely adjusting the position of the working member 23, and precisely pressing the working member 23 against the electronic component.

In this embodiment, the first adjusting element 26 is a panel and is fixed to the frame 40, and has a suitable distance with the first member 241 of the actuator 24, the first adjusting element 26 is provided with a receiving groove 262 at a position corresponding to the second movable element 22, a bottom plate 263 of the receiving groove 262 is provided with a first through hole 264 for passing through the second adjusting element 27, and the bottom plate 263 of the first adjusting element 26 is provided with a plurality of first floating portions 261 which are arc bumps. The second adjusting member 27 is a panel, and is located in the containing groove 262 of the first adjusting member 26, and has a suitable moving distance with the containing groove 262, the second adjusting member 27 is provided with a second floating portion 271 in an arc groove at a position corresponding to the first floating portion 261 of the first adjusting member 26, and in an unactivated state, the second adjusting member 27 makes the second floating portion 271 fit and clamp the first floating portion 261 of the first adjusting member 26 by its own weight or the weight of the first member 241 or the second moving member 22. The connecting member 28 is a bolt and is locked to the second adjusting member 27 and the first member 241, and the connecting member 28 can be driven by the first member 241 to move along the operation axis L to drive the second floating connection portion 271 of the second adjusting member 27 to separate from the first floating connection portion 261 or move along the first floating connection portion 261 to release the latch, so that the second moving member 22 drives the first moving member 21 and the operation member 23 to move in a floating manner (such as in the X direction, the Y direction or the horizontal angle Θ), thereby finely adjusting the swinging position or the swinging angle of the operation member 23.

The return unit is provided with a first elastic element 29 between the first adjusting element 26 and the actuator 24 or the second movable element 22 to drive the actuator 24 to return. In this embodiment, the second adjusting member 27 is provided with a second through hole 272 for passing through the first elastic member 29, one end of the first elastic member 29 abuts against the first member 241 of the actuating device 24, and the other end abuts against a cover plate 30 locked to the first adjusting member 26, so as to drive the actuating device 24 to reset.

The resetting unit is additionally provided with at least one second elastic element 31 between the actuating device 24 and the first movable piece 21 so as to drive the first movable piece 21 to reset; in this embodiment, the returning unit is provided with an extending portion 218 between two opposite fitting blocks 214 of the first movable member 21, the extending portion 218 is provided with a recess yielding portion 219, the returning unit is provided with an upright post 32 at a position corresponding to the yielding portion 219 of the third member 243 of the actuator 24, the upright post 32 is sleeved with the second elastic member 31 and the abutting block 33, one surface of the abutting block 33 abuts against the extending portion 218 of the first movable member 21 to support the first movable member 21, and the other surface of the abutting block 33 abuts against the second elastic member 31.

Referring to fig. 4, the pressing mechanism of the present invention is applied to an operating device, the operating device is provided with at least one operating device, in this embodiment, the operating device is a testing device 50, the testing device 50 is configured with an operating device as a tester on a platen 60 (such as a drawer plate), the tester includes a first circuit board 51 and a testing seat 52 with a first probe 521, the testing seat 52 uses a top surface as a bearing surface 522 for bearing against a bearing surface 232 of an operating element 23, the testing seat 52 is provided with a second positioning member 523 as a positioning hole at a position corresponding to a first positioning member 233 of the operating element 23, and the testing seat 52 is used for bearing and testing an electronic element 70.

In the test sequence, after the limit piece 25 of the crimping mechanism is limited in bearing and blocking, the second movable piece 22 and the first movable piece 21 can be limited, and the design of the blocking limit piece 25 can be determined according to the operation requirement, and at least one blocking part is arranged on the test base 52, the bedplate 60 or the machine frame 40 and at a position corresponding to the limit piece 25; for example, when the limiting member 25 is disposed in the X direction, a blocking member, which is a blocking piece, may be disposed at a position of the test socket 52 or the platen 60 corresponding to the limiting member 25; for example, when the limiting member 25 is disposed in the Z direction, a stopping member as a stopping groove may be disposed at a position of the machine frame 40 corresponding to the limiting member 25, and the above-mentioned exemplary designs can stop the limiting member 25, but are not limited to the embodiment.

In the embodiment, the testing base 52 is provided with a stopping member 524, which is configured in the X direction and is a blocking piece, at a position corresponding to the position-limiting member 25, the stopping member 524 and the testing base 52 may be integrally formed or may be separate elements, and the actuator 24 may be in an unactuated state, so that the position-limiting member 25 and the stopping member 524 have a proper distance therebetween.

Referring to fig. 5, 6, and 7, the air duct 217 of the crimping unit inputs air into the air chamber 216 of the first movable member 21, and since the first movable member 21 and the second movable member 22 can move, the air in the air chamber 216 pushes the first movable member 21 and the second movable member 22 to move reversely along the operation axis L, so that the first movable member 21 drives the operation member 23 to move downward in the Z direction synchronously, if the first positioning member 233 of the operation member 23 and the second positioning member 523 of the test base 52 have a slight difference, the first positioning member 233 of the operation member 23 cannot be smoothly inserted into the second positioning member 523 of the test base 52, and will abut against the abutment surface 522 of the test base 52.

The working element 23 is stopped by the stop surface 522 of the test seat 52, the gas in the gas chamber 216 cannot push the working element 23 to continuously move downwards, because the gas is continuously input into the gas chamber 216, the gas can push the second movable element 22 to reversely move upwards along the working axis L in the Z direction, the second movable element 22 pushes the actuator 24 and the connecting element 28 to synchronously move upwards in the Z direction, the actuator 24 pushes the first elastic element 29 with the first member 241, the connecting element 28 drives the second adjusting element 27 to float upwards in the Z direction, so as to release the clamping between the second floating part 271 of the second adjusting element 27 and the first floating part 261 of the first adjusting element 26, the second movable element 22 can utilize the second floating part 271 of the second adjusting element 27 to float and move along the first floating part 261 of the first adjusting element 26 in the X direction, so as to drive the first movable element 21 and the working element 23 to move in the X direction, so as to finely adjust the position of the working element 23, the first positioning member 233 of the work implement 23 is aligned with the second positioning member 523 of the test socket 52.

However, when the actuator 24 moves upward in the Z direction, the third member 243 drives the limiting member 25 to move synchronously, so that the limiting member 25 abuts against the stopping member 524 of the testing base 52 to limit the actuator 24, and since the actuator 24 is connected to the second movable member 22 and also limits the second movable member 22 synchronously, under the condition that the air chamber 216 maintains a predetermined air pressure, the air in the air chamber 216 pushes the first movable member 21 to move downward in the Z direction along the operation axis L, and the first movable member 21 drives the operating member 23 to move downward synchronously, so that the first positioning member 233 of the operating member 23 is inserted into the second positioning member 523 of the testing base 52, and the first movable member 21 bears the downward pushing force of the air chamber 216, thereby effectively preventing the first movable member 21 and the operating member 23 from moving reversely along the operation axis L, not only enabling the pressing portion 231 of the operating member 23 to smoothly press the electronic component 70, but also enabling the operating member 23 to reliably press the electronic component 70 with the predetermined pressing force, thereby improving the testing quality.

Therefore, the crimping mechanism of the present invention utilizes a single driving source of the crimping unit to drive the first movable member 21 and the second movable member 22 to perform reverse displacement, and utilizes the second movable member 22 to perform reverse displacement to drive the actuating device 24 and the limiting member 25 to perform synchronous displacement, so as to limit the first movable member 21 and the operating member 23 after the limiting member 25 is stopped, thereby ensuring that the operating member 23 is indeed crimped with the electronic component, and saving the cost and facilitating the space configuration of the device; when the second movable member 22 moves in the opposite direction, the adjustment unit can be used to finely adjust the position of the working member 23, so that the working member 23 can be accurately pressed against the electronic device, thereby improving the performance.

Referring to fig. 8, a second embodiment of the pressing mechanism of the present invention has a substantially same or similar structure as the first embodiment, and the difference between the second embodiment and the first embodiment is that a testing module is assembled on the pressing portion 231 of the working element 23, the testing module includes a second circuit board 234 and a plurality of second probes 235 for testing an electronic component with double-sided contacts, and the pressing unit is matched with the adjusting unit to finely adjust the position of the working element 23, so that the working element 23 is pressed against the electronic component with a preset pressing force, and the second probes 235 can be precisely aligned to the contacts of the electronic component, thereby improving the testing quality.

Claims

1. A crimping mechanism of a working device, comprising:

2. The crimping mechanism of a working device according to claim 1, wherein the first movable member of the crimping unit has an accommodation space along the working axis for accommodating the second movable member, the driving source includes an air chamber and an air duct, the air chamber is formed between the second movable member and an inner bottom surface of the accommodation space of the first movable member, and the air duct is disposed in the first movable member or the second movable member for inputting air into the air chamber.

3. The crimping mechanism of a working device according to claim 1, wherein the actuator of the positioning unit is provided with at least a first member for mounting the positioning member to the second movable member.

4. The crimping mechanism of a working device according to claim 1, wherein the actuator of the positioning unit includes a first member, a second member, and a third member, the first member is mounted to the second movable member, the second member is mounted to the first member, the third member is mounted to the second member, and the third member is provided for mounting the positioning member.

5. The crimping mechanism of a working device according to claim 4, wherein the first movable member of the crimping unit is provided with a fitting block having a guide hole through which the second member is inserted.

6. The crimping mechanism of a working device according to any one of claims 1 to 5, further comprising an adjusting unit for fine-tuning the working member, wherein the adjusting unit comprises a first adjusting member, a second adjusting member and a connecting member, the first adjusting member is provided with a first floating portion, the second adjusting member is provided with a second floating portion, the second floating portion is mutually matched with the first floating portion, and the connecting member connects the second adjusting member with the actuating tool or the second moving member.

7. The crimping mechanism of a working device according to claim 6, further comprising a restoring unit, wherein the restoring unit is provided with a cover plate on the first adjusting member, and a first elastic member is disposed between the cover plate and the actuating member or the second movable member.

8. The crimping mechanism of a working device according to claim 6, further comprising a return unit, wherein the return unit is configured with at least one second elastic member between the actuator and the first movable member.

9. The crimping mechanism of claim 6, further comprising at least one detent member disposed on the working device, the platen or the frame for detent the position-limiting member of the position-limiting unit.

10. The crimping mechanism of a working device according to claim 1, further comprising at least one detent member, the detent member being mounted to the working device, the platen, or the frame for detent the position-limiting member of the position-limiting unit.