CN111993339B

CN111993339B - Pin crimping device

Info

Publication number: CN111993339B
Application number: CN202010856173.9A
Authority: CN
Inventors: 刘坤
Original assignee: Suzhou HYC Technology Co Ltd
Current assignee: Suzhou HYC Technology Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2024-07-23
Anticipated expiration: 2040-08-24
Also published as: CN111993339A

Abstract

The invention relates to a pin crimping device, comprising: the positioning mechanism comprises a pressing plate, and the pressing plate is provided with a through hole; a floating crimp mechanism provided on the platen, the floating crimp mechanism including a floating member configured to be floatable relative to the platen in a direction perpendicular to the platen, the floating member having a pin hole corresponding to the through hole position; the pressing mechanism comprises a grabbing unit capable of moving along the direction perpendicular to the pressing plate. When the pin pressing device is used, the pin is firstly placed into the pin hole of the floating piece and then is pressed down, and the problem that the press-connection hole and the pin cannot be positioned accurately in the disposable press-connection equipment can be avoided because the pin hole and the press-connection hole on the workpiece are in an alignment state; the pin hole is provided in the float member, and when the pin is continuously pressed, the float member is also moved downward, and the projecting height of the float member with respect to the workpiece is reduced, so that the pin can be pressed into the workpiece more.

Description

Pin crimping device

Technical Field

The invention relates to the field of pin crimping, in particular to a pin crimping device.

Background

In the electronics industry, it is common to connect two components to be crimped together with a pin, the assembly crimping of which is an important process.

Some pin crimping mechanisms in the prior art adopt a manual crimping mode, so that crimping consistency is poor, working efficiency is low, and quality of products cannot be guaranteed. Other pin crimping structures in the prior art adopt clamping jaws to cooperate with a carrying mechanism to carry out one-time crimping operation, but crimping holes and pins cannot be completely and accurately positioned, so that poor crimping is caused, damage is caused to products, and meanwhile, in the long-time crimping force application process, different degrees of damage are caused to crimping equipment; if the positioning crimping is performed in cooperation with a vision camera, the cost is excessively high. In other pin crimping structures, two crimping operations are adopted, a guide piece is fixed near a crimping area, the compression structure is guided, and then a pin is pressed into a product. The disadvantage of this approach is that: when the pins are required to be pressed into the products more and the products are required to be leaked less, the thickness of the guide piece is required to be smaller than the leakage distance of the pins, but the guide piece cannot play a guide role, the pins are easy to skew after being put into the guide piece, and the products cannot be pressed into the guide piece.

Disclosure of Invention

Accordingly, it is necessary to provide a pin crimping device which has no guiding function for a guide, is easy to skew after the pin is put in, and cannot press in a product.

A pin crimping apparatus comprising: the positioning mechanism comprises a pressing plate, and the pressing plate is provided with a through hole; a floating crimp mechanism provided on the platen, the floating crimp mechanism including a floating member configured to be floatable relative to the platen in a direction perpendicular to the platen, the floating member having a pin hole corresponding to the through hole position; the pressing mechanism comprises a grabbing unit capable of moving along the direction perpendicular to the pressing plate.

When the pin crimping device is used, the pin is firstly placed in the pin hole of the floating piece and then is pressed down, and because the pin hole and the crimping hole on the workpiece are in an alignment state, the problem that the crimping hole and the pin cannot be completely positioned and accurately in the disposable crimping equipment can be avoided, the product is effectively protected from being damaged, the cost is low, and the use is convenient and reliable. In addition, the pin hole is arranged on the floating piece, the floating piece has a longer guiding distance to the pin before the pin is pressed, so that the pin is prevented from being inclined, and when the pin is continuously pressed, the floating piece moves downwards, the protruding height of the floating piece relative to the workpiece is reduced, and therefore the pin can be pressed into the workpiece more, and the requirement that the distance of the pin leaking out of the workpiece is smaller can be met. In addition, the automatic compaction is carried out by adopting the compaction mechanism and the floating compression joint mechanism, and compared with the fact that consistency cannot be ensured by manual operation, the automatic compression joint mechanism can improve compression joint consistency, is high in working efficiency and ensures product quality.

In one embodiment, the positioning mechanism further comprises a lifting driving unit for driving the pressing plate to lift.

In one embodiment, the floating press-connection mechanism further comprises a positioning plate fixed on the pressing plate, a channel is formed in the positioning plate, and the floating piece is arranged on the positioning plate and the pin hole corresponds to the channel in position.

In one embodiment, the floating crimp mechanism further comprises a guide structure disposed between the float and the locating plate, and a reset member disposed between the float and the locating plate, the reset member configured to provide a driving force to move the float away from the locating plate.

In one embodiment, the floating member comprises an embedded portion with the pin hole and a limiting portion connected with the embedded portion, the embedded portion is inserted into the channel, and the guiding structure and the resetting member are both arranged between the limiting portion and the positioning plate.

In one embodiment, the embedded portion includes a first connecting arm, a second connecting arm, and a nail hole portion connecting one end of the first connecting arm and one end of the second connecting arm, wherein the first connecting arm and the second connecting arm are opposite and are arranged at intervals, the other end of the first connecting arm and/or the other end of the second connecting arm is provided with the limiting portion, and the nail hole is formed in the nail hole portion.

In one embodiment, a groove is formed in a surface of the nail hole portion, which is close to the limiting portion, and the pin hole is formed in the bottom wall of the groove.

In one embodiment, the pressing mechanism comprises a three-dimensional moving platform, the three-dimensional moving platform comprises an X-axis module, a Y-axis module and a Z-axis module, wherein the Y-axis module is arranged on the X-axis module and can move along the X direction, the Z-axis module is arranged on the Y-axis module and can move along the Y direction, the grabbing unit is arranged on the Z-axis module and can move along the Z direction, and the Z direction is consistent with the direction perpendicular to the pressing plate.

In one embodiment, the pin crimping device further comprises a loading and unloading mechanism located below the pressing plate.

In one embodiment, the feeding and discharging mechanism comprises a feeding and discharging substrate, two side limiting plates and an upper limiting block, wherein the two side limiting plates and the upper limiting block are arranged on the feeding and discharging substrate, and the feeding and discharging substrate, the side limiting plates and the upper limiting block enclose a workpiece limiting cavity with an inserting port.

In one embodiment, the pin crimping device further comprises a pin cartridge clip mechanism located on one side of the loading and unloading mechanism, the pin cartridge clip mechanism comprising a pin storage plate provided with a plurality of pin storage holes.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a pin crimping apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a positioning mechanism in the pin crimping apparatus shown in fig. 1.

Fig. 3 is a schematic structural view of a floating crimping mechanism in the pin crimping apparatus shown in fig. 1.

FIG. 4 is a schematic view of a float member of the floating crimp mechanism of FIG. 3.

Fig. 5 is a schematic structural view of a pressing mechanism in the pin crimping apparatus shown in fig. 1.

Fig. 6 is a schematic view of a structure when the gripping unit in the pin crimping apparatus shown in fig. 5 grips a pin.

Fig. 7 is a schematic structural view of the pin press-fitting device shown in fig. 1 when the workpiece is pre-positioned by the feeding and discharging mechanism.

Fig. 8 is a schematic view of the pin cartridge clip mechanism in the pin crimping apparatus shown in fig. 1.

The corresponding numbers of the relevant elements in the figures are as follows:

100. A pin crimping device; 10. a positioning mechanism; 110. a pressing plate; 111. a lower surface; 112. an upper surface; 113. a concave surface; 120. a through hole; 130. a lifting driving unit; 131. a cylinder; 1311. a cylinder connecting block; 132. a guide post; 133. a synchronizing plate; 134. a linear bearing; 20. a floating crimping mechanism; 210. a floating member; 211. an embedding part; 2111. a first connecting arm; 2112. a second connecting arm; 2113. a nail hole portion; 2114. a groove; 212. a limit part; 220. a pin hole; 230. a positioning plate; 231. a channel; 240. a guide structure; 241. a guide shaft; 242. an oilless bushing; 243. a limit seat; 250. a reset member; 30. a compressing mechanism; 310. a grabbing unit; 311. a finger cylinder; 312. v-shaped clamping jaw; 320. an X-axis module; 321. an X-axis rail; 330. a Y-axis module; 331. a Y-axis mounting plate; 332. a Y-axis rail; 333. an adapter plate; 340. a Z-axis module; 341. a Z-axis mounting plate; 342. a Z-axis slider; 343. a Z-axis connecting plate; 344. a clamping jaw fixing plate; 350. a support frame; 40. a bottom plate; 50. a loading and unloading mechanism; 510. feeding and discharging a substrate; 520. a side limiting plate; 530. an upper limiting block; 60. a pin cartridge clip mechanism; 610. a pin storage plate; 611. a pin storage hole; 620. a support structure; 621. a fixed flange; 622. supporting the positioning column; 200. a pin; 300. a workpiece.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1, 6 and 7, an embodiment of the present invention provides a pin crimping apparatus 100 for pressing a pin 200 into a workpiece 300 to be assembled.

As shown in fig. 1, the pin crimping apparatus 100 includes a positioning mechanism 10, a floating crimping mechanism 20 provided on the positioning mechanism 10, and a pressing mechanism 30, wherein the positioning mechanism 10 is used for fixing a workpiece 300 to be crimped thereunder, and the pressing mechanism 30 can grasp the pin 200 to be placed in the floating crimping mechanism 20 and press the pin 200 into the workpiece 300 to be assembled under the guidance of the floating crimping mechanism 20. As shown in fig. 1, the pin crimping apparatus 100 further includes a base plate 40, and the positioning mechanism 10, the pressing mechanism 30, etc. are mounted on the base plate 40 for convenience of handling, mounting, and operation.

As shown in fig. 2, the positioning mechanism 10 includes a pressing plate 110, where the pressing plate 110 is used to press a workpiece 300 located below the pressing plate 110, and a through hole 120 through which the pin 200 can pass is formed in the pressing plate 110. When the positioning mechanism 10 is specifically arranged, the positioning mechanism further comprises a lifting driving unit 130 for driving the pressing plate 110 to lift, wherein the lifting driving unit 130 can drive the pressing plate 110 to lift or descend, and when the pressing plate 110 lifts, the space below the pressing plate 110 is increased, so that the workpiece 300 can be placed conveniently; after the workpiece 300 is placed in place, the lifting driving unit 130 drives the pressing plate 110 to descend to fix the workpiece 300. The type of the elevation driving unit 130 is not limited, and may be a cylinder system as described in fig. 2 or a motor system. Specifically, as shown in fig. 2, the elevation driving unit 130 is a cylinder system including two cylinders 131, four guide posts 132, and two synchronizing plates 133, wherein the two cylinders 131 are respectively disposed at opposite sides of the through-hole 120 of the pressing plate 110 and connected to the lower surface 111 of the pressing plate 110 through a cylinder connection block 1311, and the cylinders 131 are fixed to the bottom plate 40. Two sides of each cylinder 131 are respectively provided with a guide post 132. One end of the guide post 132 is fixedly connected to the lower surface 111 of the pressing plate 110, and the other end of the guide post 132 is fixed to a synchronizing plate 133, while the guide post 132 is slidably engaged with a linear bearing 134 fixed to the bottom plate 40. Both synchronization plates 133 are located on a side of the bottom plate 40 facing away from the platen 110 for abutting the bottom plate 40 to limit the platen 110 when the platen 110 moves upward. By providing linear bearings 134 to mate with guide posts 132, platen 110 can be precisely positioned and guided. Two guide posts 132 are slidably engaged with the bottom plate 40 on both sides of the pressing plate 110, and the two guide posts 132 are connected by a synchronization plate 133, so that the two guide posts 132 slide up and down synchronously. The lifting driving unit 130 simultaneously drives the pressing plate 110 to lift from both sides by using two cylinders 131, and the pressing plate 110 operates smoothly and can more reliably press the workpiece 300. In addition, a loading and unloading mechanism 50 fixed on the bottom plate 40 is further disposed below the pressing plate 110, and the loading and unloading mechanism 50 is used for receiving the workpiece 300 and pre-positioning the workpiece 300. When the pin crimping apparatus 100 is used, the workpiece 300 can be placed into the loading and unloading mechanism 50 for pre-positioning.

The floating crimp mechanism 20 is disposed on the press plate 110, and referring to fig. 2, 3 and 4 in combination, the floating crimp mechanism 20 includes a floating member 210, the floating member 210 being configured to be floatable relative to the press plate 110 in a direction perpendicular to the press plate 110, the floating member 210 having a pin hole 220 corresponding to a position of the through hole 120. After the pin 200 is placed in the pin hole 220, when the pressing mechanism 30 presses the pin 200 from above, the pin 200 drives the float 210 to move together, so that the float 210 continuously guides the pin 200. In an embodiment of the present invention, a direction perpendicular to the platen 110 refers to a direction away from or toward the upper surface 112 of the platen 110.

In particular, referring to fig. 1 and 2 in combination, the floating crimping mechanism 20 may include a plurality of floating members 210 that are in one-to-one correspondence with a plurality of crimping holes (not shown) on the workpiece 300. The platen 110 is provided with a rectangular through hole 120, and the through hole 120 is sized to allow the passage of pins 200 on all of the float 210. When the number of the floating members 210 is plural, plural through holes 120 having positions and a number corresponding to the floating members 210 one by one and having a smaller size may be provided in the platen 110.

The pressing mechanism 30 includes a grasping unit 310 capable of moving in a direction perpendicular to the pressing plate 110. The grasping unit 310 is configured to be movable in a direction perpendicular to the platen 110 so as to press the pins 200. When specifically setting up, hold-down mechanism 30 includes three-dimensional moving platform, and three-dimensional moving platform includes X axle module 320, Y axle module 330, Z axle module 340, and wherein Y axle module 330 sets up in X axle module 320 and can follow X direction motion, and Z axle module 340 sets up in Y axle module 330 and can follow Y direction motion, snatchs the unit 310 and sets up in Z axle module 340 and can follow Z direction motion, and Z direction is unanimous with the direction of perpendicular to clamp plate 110. By the above means, the grasping unit 310 can move in three directions X, Y, Z, can grasp the pin 200 conveniently, and then place the pin 200 into any one of the target pin holes 220.

The specific structure of the three-dimensional moving platform is not limited, and the X, Y, Z direction movement of the grabbing unit 310 can be realized. As shown in fig. 5, in one embodiment, the three-dimensional moving platform further includes a support frame 350, wherein the X-axis module 320 is disposed on top of the support frame 350, and the X-axis module 320 includes a pair of X-axis rails 321 disposed in parallel. The Y-axis module 330 includes a Y-axis mounting plate 331 and a Y-axis rail 332 fixed on the Y-axis mounting plate 331, wherein two ends of the Y-axis mounting plate 331 are slidably connected to the X-axis rail 321 through an adapter plate 333. The Z-axis module 340 includes a Z-axis mounting plate 341 slidably connected to the Y-axis rail 332, a Z-axis slider 342 provided to the Z-axis mounting plate 341, a Z-axis connection plate 343 connected to the Z-axis slider 342, and a jaw fixing plate 344 connected to the Z-axis connection plate 343, the jaw fixing plate 344 being connected to the grasping unit 310.

The grabbing unit 310 is used for grabbing the pin 200. As shown in fig. 6, in one embodiment, the gripping unit 310 includes a finger cylinder 311, a V-shaped jaw 312 driven by the finger cylinder 311, wherein the finger cylinder 311 is connected to a jaw fixing plate 344 of a Z-axis module 340 in a three-dimensional moving platform. The finger cylinder 311 may actuate the V-shaped jaws 312 to close or open to grip the pin 200 or release the pin 200. It is to be understood that the type of the grasping unit 310 is not limited to the above-described finger cylinder 311.

The pin crimping apparatus 100 operates as follows: the workpiece 300 is placed under the platen 110, and the workpiece 300 is pressed by the platen 110. Then, the gripping unit 310 grips the pin 200 and then ascends after being placed in the pin hole 220, the gripping unit 310 descends again to press the pin 200, and the floating member 210 moves together with the pin 200 to continuously guide the pin 200 in the continuous pressing process. After the pin 200 is pressed into the workpiece 300, the gripping unit 310 is raised and the float 210 is reset. Repeating the above-described operation, a plurality of pins 200 may be pressed into the workpiece 300.

When the pin crimping device 100 is used, the pin 200 is firstly placed in the pin hole 220 of the floating piece 210 and then the pin 200 is pressed down, and because the pin hole 220 and the crimping hole on the workpiece 300 are in an alignment state, the problem that the crimping hole and the pin 200 cannot be completely positioned accurately in the disposable crimping equipment can be avoided, the product is effectively protected from being damaged, the cost is low, and the use is convenient and reliable. In addition, the pin hole 220 is formed in the floating member 210, and before the pin 200 is pressed, the floating member 210 has a longer guiding distance with respect to the pin 200, so that the pin 200 can be prevented from being skewed, and when the pin 200 is continuously pressed, the floating member 210 moves downward, and the protruding height of the floating member 210 with respect to the workpiece 300 is reduced, so that the pin 200 can be more pressed into the workpiece 300, i.e., the requirement that the pin 200 leaks out of the workpiece 300 by a smaller distance can be satisfied. In addition, the compressing mechanism 30 and the floating compression mechanism 20 are adopted for automatic compression, and compared with the fact that consistency cannot be ensured by manual operation, the compression consistency can be improved, the working efficiency is high, and the product quality is ensured.

As shown in connection with fig. 1, 6 and 7, in order to facilitate the installation of the floating crimp mechanism 20, in some embodiments, the floating crimp mechanism 20 further includes a positioning plate 230 disposed on the pressing plate 110, a channel 231 is formed on the positioning plate 230, and the floating member 210 is disposed on the positioning plate 230 and the pin hole 220 corresponds to the channel 231.

Specifically, the upper surface 112 of the platen 110 forms a concave surface 113 around the through hole 120. The positioning plate 230 is disposed on the concave surface 113, and has a plurality of channels 231 thereon, and a floating member 210 is disposed in each channel 231. The positioning plate 230 is placed on the concave 113, so that the stacking thickness of the positioning plate 230 and the pressing plate 110 is smaller, and when the floating member 210 moves downwards, the floating member is closer to the workpiece 300, so that the pin 200 can be pressed into the workpiece 300 more, and the requirement that the distance between the pin 200 and the workpiece 300 is smaller can be met.

In the pin crimping apparatus 100 described above, the floating member 210 is assembled on the positioning plate 230 in advance to form the floating crimping mechanism 20, and then the positioning plate 230 is connected to the pressing plate 110. In the above manner, on one hand, the floating compression joint mechanism 20 is arranged on the pressing plate 110 conveniently, and the floating compression joint mechanism 20 is replaced conveniently; on the other hand, after the positioning plate 230 is connected to the pressing plate 110, the position in the XY plane of the pin hole 220 is determined, so that the accuracy of alignment of the pin hole 220 with the press-fit hole on the workpiece 300 is advantageously ensured.

Further, in order to more precisely position the positioning plate 230 on the platen 110, in some embodiments, one of the positioning plate 230 and the platen 110 is provided with a positioning pin (not shown), and the other is provided with a guide sleeve (not shown) that cooperates with the positioning pin. When the positioning plate 230 is connected to the pressing plate 110, the guide sleeve and the positioning pin cooperate with each other to realize accurate positioning of the positioning plate 230, thereby ensuring the position accuracy of the pin hole 220. In a specific arrangement, the positioning plate 230 is rectangular plate-shaped, and a positioning pin may be disposed at a diagonal position of the lower surface 111 of the positioning plate 230, and two guide sleeves are disposed on the upper surface 112 of the pressing plate 110 correspondingly.

To prevent the pin 200 from skewing and to enable the float 210 to quickly reset upward when the float 210 moves downward, as shown in connection with fig. 3 and 4, in some embodiments, the floating crimp mechanism 20 further includes a guide structure 240, a reset member 250, wherein the guide structure 240 is disposed between the float 210 and the positioning plate 230, the reset member 250 is configured to provide a driving force to move the float 210 away from the positioning plate 230, and the pin hole 220 is disposed in the float 210.

In particular, the guide structure 240 is located between the upper surface of the positioning plate 230 and the float 210. The guiding structure 240 includes a guiding shaft 241, an oilless bushing 242, and a limiting seat 243. Wherein the oilless bushing 242 is fixed in the positioning plate 230; the guide shaft 241 is in sliding fit with the oilless bushing 242, one end of the guide shaft 241 is fixedly connected with the floating piece 210, and the other end of the guide shaft 241 is connected with the limiting seat 243; the limiting seat 243 is located at one side of the lower surface of the positioning plate 230 and can be abutted against the positioning plate 230; the return member 250 is a spring fitted over the guide shaft 241 and both ends thereof are respectively abutted against the floating member 210 and the oilless bushing 242. When the floating member 210 moves downward, the floating member 210 compresses the reset member 250, and the floating member 210 drives the guide shaft 241 and the limiting seat 243 to move downward together. When the floating member 210 is reset upwards, the limiting seat 243 is propped against the positioning plate 230 after moving upwards, so that the guide shaft 241 can be prevented from flying away from the positioning plate 230 under the action of the resetting member 250. It will be appreciated that the restoring member 250 may be other components capable of providing restoring force, such as a rubber spring pad, a torsion spring, and the mounting position is not limited to being sleeved on the guide shaft 241.

In the pin crimping device 100, the floating member 210 moves along the guide structure 240 in the process of pressing down, so that the floating member 210 is prevented from being skewed, and then the pin 200 is prevented from being skewed, so that the pin 200 can be accurately pressed into the crimping hole in the workpiece 300.

Further, in order to enable the pin 200 to be more pressed into the workpiece 300, the requirement that the distance of the pin 200 leaking out of the workpiece 300 is small is met to the greatest extent. As shown in fig. 4, in some embodiments, the floating member 210 includes an insertion portion 211 having a pin hole 220, a limiting portion 212 connected to the insertion portion 211, the insertion portion 211 is inserted into the channel 231, and the guide structure 240 and the reset member 250 are disposed between the limiting portion 212 and the positioning plate 230. The insertion portion 211 is inserted into the passage 231 on the positioning plate 230, and the floating member 210 can be moved downward closer to the workpiece 300, and is not affected at all by the overlapped thickness of the positioning plate 230 and the pressing plate 110, thereby achieving a guiding effect and having less influence on the depth of pressing the pin 200 into the workpiece 300.

As shown in fig. 4, in a specific embodiment, the embedded portion 211 has a substantially U shape, and includes a first connecting arm 2111, a second connecting arm 2112, and a nail hole portion 2113 connecting one end of the first connecting arm 2111 and one end of the second connecting arm 2112, where the nail hole 220 is disposed at the nail hole portion 2113. The other end of the first connecting arm 2111 and the other end of the second connecting arm 2112 are respectively provided with the limiting portion 212, so that the left and right sides of the embedded portion 211 are respectively provided with the guiding structure 240, and the floating member 210 moves downward more stably. In other embodiments, only one limit portion 212 may be provided. The embedded portion 211 is not limited to a U-shape, which is not limited in the embodiment of the present invention.

In the pin crimping apparatus 100, since the nail hole portion 2113 is provided at the most distal end of the first and second connecting arms 2111 and 2112 away from the stopper 212, the nail hole portion 2113 is located at the position closest to the workpiece 300 on the insertion portion 211, and thus the proximity between the nail hole portion 2113 and the workpiece 300 is better when the float 210 moves downward than when the nail hole portion 2113 is provided at other positions of the insertion portion 211, and the effect on the depth of pressing the pin 200 into the workpiece 300 is less.

Further, a groove 2114 is provided in a surface, i.e., an upper surface, of the nail hole portion 2113 near the stopper portion 212, and a pin hole 220 is provided in a bottom wall of the groove 2114. Specifically, the upper surface of the nail hole portion 2113 is provided with a circular groove 2114, and the center of the bottom wall of the groove 2114 is provided with a pin hole 220 penetrating the nail hole portion 2113. The contour shape of the groove 2114 is not limited to a circle, but may be a square, a triangle, an irregular shape, or the like.

The pin hole portion 2113 is provided with a groove 2114, and the pin hole 220 is provided in the groove 2114, so that the thickness of the pin hole portion 2113 at the pin hole 220 can be reduced, so that the pin 200 can be closer to the workpiece 300 when the float 210 moves downward, thereby facilitating the pin 200 to be pressed into the workpiece 300 to a deeper depth.

Further, in some embodiments, the area of the grooves 2114 is smaller than the area of the upper surface 112 of the pin hole portion 2113, i.e., the thickness of the pin hole portion 2113 is only partially reduced, thereby also securing the strength of the pin 200 portion.

To better place the workpiece 300 to be crimped in the crimping zone below the platen 110, the pin crimping apparatus 100 further includes a loading and unloading mechanism 50 located below the platen 110, as shown in fig. 1. The loading and unloading mechanism 50 is used for receiving the workpiece 300 and pre-positioning the workpiece 300. By using the loading and unloading mechanism 50, an operator can accurately place the workpiece 300 in the crimping zone, so that the position accuracy can be ensured, and the crimping holes on the workpiece 300 are aligned with the pin holes 220 on the floating crimping mechanism 20 one by one; further, by using the loading and unloading mechanism 50, even when a plurality of workpieces 300 are placed by different persons, the positional consistency can be improved.

In a specific embodiment, as shown in fig. 8, the loading and unloading mechanism 50 includes an loading and unloading substrate 510, two side limiting plates 520 and an upper limiting block 530 disposed on the loading and unloading bottom plate 40, and the loading and unloading substrate 510, the side limiting plates 520 and the upper limiting block 530 enclose a workpiece limiting cavity with an insertion opening. The upper and lower substrates 510 form the bottom wall of the workpiece limiting cavity, the two side limiting plates 520 form the left and right side walls of the workpiece limiting cavity, and the upper limiting block 530 forms the front side wall of the workpiece limiting cavity in front of the insertion direction of the workpiece 300. When the workpiece 300 is placed below the pressing plate 110, the workpiece 300 is only required to be pushed into the workpiece limiting cavity from the insertion port, the bottom of the workpiece 300 is limited by the upper and lower material base plates 510, the left and right sides of the workpiece 300 are respectively limited by the two side limiting plates 520, and the front end of the workpiece 300 is limited by the upper limiting block 530, so that the workpiece 300 is pre-positioned. After that, the pin 200 is pressed into the workpiece 300 by pressing the workpiece 300 with the pressing plate 110.

In addition to the above embodiment, in order to achieve continuous crimping operation and improve automation, as shown in fig. 1, the pin crimping apparatus 100 further includes a pin clip mechanism 60, where the pin clip mechanism 60 is located at one side of the loading and unloading mechanism 50. The pin magazine mechanism 60 is used to store a plurality of pins 200 for multiple gripping by the gripping unit 310.

As shown in fig. 8, in particular, the pin cartridge 60 includes a pin storage plate 610 and a support structure 620 supporting the pin storage plate 610, the pin storage plate 610 being provided with a plurality of pin storage holes 611. The support structure 620 includes a fixing flange 621, and a support positioning column 622, where the fixing flange 621 is used to fix to the bottom plate 40 of the pin crimping apparatus 100 or other support foundation, and two ends of the support positioning column 622 are fixedly connected to the fixing flange 621 and the pin storage plate 610, respectively, and the upper surface of the pin storage plate 610 is provided with a plurality of pin storage holes 611 arranged in an array.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A pin crimping apparatus, comprising:

The positioning mechanism comprises a pressing plate, wherein the pressing plate is provided with a through hole, and the positioning mechanism further comprises a lifting driving unit for driving the pressing plate to lift;

A floating crimp mechanism provided on the platen, the floating crimp mechanism including a floating member configured to be floatable relative to the platen in a direction perpendicular to the platen, the floating member having a pin hole corresponding to the through hole position; the floating crimping mechanism further comprises a positioning plate fixed on the pressing plate, a channel is formed in the positioning plate, and the floating piece is arranged on the positioning plate and corresponds to the position of the channel in position; the floating crimping mechanism further comprises a guide structure and a reset piece, wherein the guide structure is arranged between the floating piece and the positioning plate, the reset piece is arranged between the floating piece and the positioning plate, and the reset piece is configured to provide a driving force for enabling the floating piece to be far away from the positioning plate; the floating piece comprises an embedded part with the pin hole and a limiting part connected with the embedded part, the embedded part is inserted into the channel, and the guide structure and the resetting piece are both arranged between the limiting part and the positioning plate;

the pressing mechanism comprises a grabbing unit capable of moving along the direction perpendicular to the pressing plate.

2. The pin crimping device according to claim 1, wherein the embedded portion includes a first connecting arm, a second connecting arm, and a pin hole portion connecting one end of the first connecting arm and one end of the second connecting arm, which are disposed opposite and at a distance, the other end of the first connecting arm and/or the other end of the second connecting arm is provided with the limit portion, and the pin hole is provided in the pin hole portion.

3. The pin crimping apparatus as claimed in claim 2, wherein the upper surface of the pin hole portion near the stopper portion is provided with a groove, and the bottom wall of the groove is provided with the pin hole.

4. The pin crimping apparatus of claim 1, wherein the lift drive unit is a cylinder system.

5. The pin crimping apparatus of claim 1, wherein the lift drive unit is a motor system.

6. The pin crimping apparatus as claimed in claim 1, wherein one of the positioning plate and the pressing plate is provided with a positioning pin, and the other of the positioning plate and the pressing plate is provided with a guide sleeve engaged with the positioning pin.

7. The pin crimping device of claim 1, wherein the hold-down mechanism comprises a three-dimensional moving platform comprising an X-axis module, a Y-axis module, and a Z-axis module, wherein the Y-axis module is disposed in the X-axis module and is movable in an X-direction, the Z-axis module is disposed in the Y-axis module and is movable in a Y-direction, the grasping unit is disposed in the Z-axis module and is movable in a Z-direction, and the Z-direction is consistent with the direction perpendicular to the platen.

8. The pin crimping device of claim 1, further comprising a loading and unloading mechanism located below the platen.

9. The pin crimping device of claim 8, wherein the loading and unloading mechanism comprises an loading and unloading substrate, two side limiting plates and an upper limiting block, wherein the two side limiting plates and the upper limiting block are arranged on the loading and unloading substrate, and the loading and unloading substrate, the side limiting plates and the upper limiting block enclose a workpiece limiting cavity with an insertion port.

10. The pin crimping apparatus of claim 8, further comprising a pin cartridge mechanism located on one side of the loading and unloading mechanism, the pin cartridge mechanism comprising a pin storage plate provided with a plurality of pin storage holes.