WO2018120497A1

WO2018120497A1 - Pick-up pen for manual assembly

Info

Publication number: WO2018120497A1
Application number: PCT/CN2017/080022
Authority: WO
Inventors: 吴东标; 张亮; 方丽
Original assignee: 华为技术有限公司
Priority date: 2016-12-27
Filing date: 2017-04-11
Publication date: 2018-07-05
Also published as: CN110049847B; CN110049847A

Abstract

A pick-up pen (100) for manual assembly, used to assemble an electric terminal device. The pick-up pen comprises a first pressing rod (15), a second pressing rod (20), and an elastic member (25). The second pressing rod (20) is provided with a tip portion (21). The second pressing rod (20) is slidably connected to the first pressing rod (15) and elastically presses against the elastic member (25). The pen further comprises a pen barrel (10) and an elastic stopper member (30). The pen barrel (10) accommodates the first pressing rod (15). The elastic stopper member (30) elastically holds and locks the first pressing rod (15). Upon an applied pressure, the tip portion (21) drives the second pressing rod (20) to slide with respect to the first pressing rod (15) and compress the elastic member (25), and after the second pressing rod (20) compresses the elastic member (25), the elastic stopper member (30) is driven to move to unlock the first pressing rod (15), enabling the first pressing rod (15) to move.

Description

Tooling pen

Technical field

The present application relates to the field of assembly manufacturing technology, and in particular, to a tool suction pen.

Background technique

Mobile terminals such as mobile phones have many small parts such as earpieces. Many of these small parts need to be assembled manually when assembled. For example, when the earpieces are assembled and fixed, they are generally assembled by using metal bars and then assembled into the casing of the mobile phone. The manual assembly force required during the assembly process should not be too small (unstable attachment of the earpiece), and the assembly pressure is too large to exceed the maximum bearing pressure of the earpiece, which may cause the earpiece to be crushed. The existing metal rods cannot control the assembly strength during manual installation, and often there are problems such as damage or falling of the earpiece due to excessive or too small assembly force.

Summary of the invention

The embodiment of the invention provides a tool suction pen, which solves the technical problem that the existing terminal small parts are poorly assembled due to the manual assembly strength problem.

The tool suction pen includes: a first pressure bar, a second pressure bar and an elastic member, the second pressure bar is provided with a pen head, and the second pressure bar is slidably coupled to the first pressure bar and Said elastic member elastically resists;

a pen holder and an elastic limiting member, the pen holder housing the first pressing rod, the elastic limiting member elastically locking the first pressing rod; the writing head is under pressure to push the second pressing rod relative to the first A pressing rod slides and compresses the elastic member, and the second pressing rod compresses the elastic member to push the elastic limiting member to move to unlock the first pressing rod to realize the first pressing rod movement. The elastic member and the second pressing rod are sequentially received in the first pressing rod along the axial direction of the first pressing rod, and the first pressing rod is axially slidably mounted along the pen holder. Inside the pen holder.

The tool suction pen further includes an auxiliary spring, and the auxiliary spring is received in the pen holder to elastically resist the first pressing bar. The auxiliary spring further prevents the manual reaction from being too slow and raises the tip of the pen too late to provide a cushioning force for the pressure of the nib.

Wherein, a guiding rod is disposed between the first pressing rod and the auxiliary spring, and when the first pressing rod moves, the guiding rod is pushed to compress the auxiliary spring. The guiding rod can ensure that the first pressing rod slides along the straight line, avoiding the deviation of the elastic member during compression.

Wherein, the sum of the elastic force of the auxiliary spring and the elastic member is the maximum pressure that the electric device can withstand, and it can be ensured that the electric device is not damaged when both the auxiliary spring and the elastic member are compressed.

Wherein, the elastic force of the elastic member is the pressure required when the electrical device is assembled. It is possible to ensure that the elastic member is compressed without damage to the electrical device when there is no auxiliary spring.

Wherein, the cylinder wall of the pen holder is provided with a guiding groove along the axial direction, and the guiding rod is slidably disposed in the guiding groove and slides along the axial direction of the pen holder.

Wherein, an end of the pen holder away from the pen tip is provided with an adjustment button, and the adjustment button elastically resists the auxiliary spring. The adjustment button adjusts the auxiliary spring to twist back.

Wherein, the end of the second pressing rod away from the first pressing rod is provided with a connecting portion, and the writing head is detachably connected to the connecting portion. Easy to replace pens of different sizes.

Wherein, the first pressing rod is axially provided with a cavity penetrating the end portion, the second pressing rod and the elastic member are received in the cavity, the pen head exposing the first pressing bar, the elastic member The opposite ends respectively abut the second pressing rod and the end wall of the cavity.

The pen holder is provided with a receiving cavity, and the elastic limiting member comprises an elastic end. The elastic limiting member is disposed on the pen holder and penetrates the receiving cavity, the elastic end and the first pressing bar Hold. The elastic limiting member can be detached when the first pressing lever is unlocked to remind the manual to stop pressing.

The cavity includes a first end wall and a second end wall opposite to the first end wall, and one end of the second pressing rod away from the pen head is a holding end, and the first end wall and the card are held The end is clamped, and one end of the elastic member away from the second pressing rod is fixed to the second end wall. The second pressure bar is prevented from being disengaged from the first pressure bar.

Wherein, the end of the pen holder remote from the pen tip is connected with a fixing seat, and the adjusting key is axially slidably mounted on the fixing seat along the pen holder for facilitating the use of the adjusting button.

Wherein, the outer portion of the pen holder is provided with a decorative sleeve to cover the guiding groove and improve the comfort of the hand.

The tool suction pen described in the present application uses an elastic member to buffer the pressure of the pen head against the first pressing rod and the second pressing rod, thereby buffering the pressure of the writing head against the device, and simultaneously setting the elastic limiting member to cooperate with the first pressing rod can The role of reminders.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic view showing the structure of a tool suction pen according to an embodiment of the present invention.

2 is a schematic cross-sectional view of the tooling pen shown in FIG. 1.

Fig. 3 is a schematic view showing the state of movement of the tool suction pen shown in Fig. 2.

4 is a schematic view showing the structure of a tool suction pen including an auxiliary spring according to an embodiment of the present invention.

Figure 5 is a cross-sectional view of the tooling pen of Figure 4;

6 and 7 are schematic views showing the movement state of the tool suction pen shown in Fig. 4.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

The embodiment of the invention provides a tool suction pen for assisting manual attachment to a small component of a mobile terminal such as a mobile phone, such as a sticker of a mobile phone handset housing. It is required that the top of the earpiece has a magnetic surface, and the tool tip is pen tip. For the metal parts, the magnetic force on the earpiece can generate suction to grasp the earpiece, that is, it can be fixed by the magnetic attraction and the tool suction pen, and the adhesive force of the glue attached to the earpiece is greater than the attraction between the tool suction pen and the earpiece. force.

Referring to FIG. 1 and FIG. 2 , the tool suction pen 100 of the present application includes a pen holder 10 , a first pressing rod 15 , a second pressing rod 20 , an elastic member 25 , and an elastic limiting member 30 . The second pressing rod 20 is provided with a pen head 21, and the second pressing rod 20 is slidably coupled to the first pressing rod 15 and elastically resists the elastic member 25;

The first pressing rod 15 is received in the pen holder 10 , and the elastic limiting member 30 elastically locks the first pressing rod 15 . The pen tip 21 is under pressure to push the second pressure bar 20 in the first pressure bar 15 and oppositely when the component such as the earpiece is mounted The first pressing rod 15 slides and compresses the elastic member 25, and the second pressing rod 20 compresses the elastic member 25 to push the elastic limiting member 30 to move to unlock the first pressing rod 15 to realize The first pressure bar 15 moves. When the elastic limiting member 30 and the first pressing rod 15 are unlocked, the artificial sensing will stop and continue to press the tool suction pen.

Specifically, the pen holder 10 is a hollow rod body, and includes a receiving cavity 101, a first port 102 communicating with the receiving cavity 101, and a second port 103 disposed opposite to the first port 102. The first pressing rod 15 is slid from the second port 103 and is received in the receiving cavity 101 of the pen holder 10 and protrudes from the first port 102. A fixing seat 104 is mounted on the second port 103. In this embodiment, the fixing base 104 is a bolt, and the fixing base 104 includes a rod body 105 and a tip 106 connected to an end of the rod body 105. The rod body 105 is screwed to the second port 103. Further, a spacer 107 is sandwiched between the end 106 and the second port 103 for increasing the contact area between the fixing base 104 and the surface of the pen holder 10 to prevent the surface of the pen holder 10 from being worn out; The spacer 107 has elasticity and at the same time acts as a lock. The fixing base 104 may also be a rubber plug body. A cylinder 11 is protruded from an outer circumferential surface of the pen holder 10 , and the cylinder 11 penetrates the receiving cavity 101 for receiving the elastic limiting member 30 .

The first pressing rod 15 is a hollow cylinder, and includes a cavity 151 and an open end 152 penetrating the cavity 151 . The cavity 151 extends through the end of the first pressure bar 15 along the axis and forms the open end 152. The cavity 151 has a T-shaped cross section, and includes a first end wall 153 and a second end wall 154 opposite to the first end wall 153, and the first end wall 15 is located in the cavity 151 away from the open end 152. The second pressing rod 20 is limited, and the open end 152 is located at a narrow end of the cavity 151. The first pressing rod 15 is slidably mounted in the receiving cavity 101 of the pen holder 10 from the first port 102, and a portion having an open end 152 is extended from the pen holder 10. In this embodiment, an end of the first pressing rod 15 opposite to the open end 152 is also provided with an opening, and the opening is located at one end of the cross-sectional width of the cavity 151. The opening is closed by a package block seal 155 (the package block 155 can be considered to belong to a portion of the second end wall).

As shown in FIG. 2 , in the embodiment, the elastic limiting member 30 is a round-headed plunger, and includes a housing 301 and an elastic end 302 that is received and retractable relative to the housing. The elastic limiting member 30 fixes the The elastic end 302 of the cylinder 105 extends into the receiving cavity 152 to engage the first pressing rod 15. Further, the outer peripheral wall of the first pressing rod 15 is provided with a card slot corresponding to the elastic end 302. 156 (Figure 2 and Figure 3). It can be understood that the elastic end of the elastic limiting member 30 can be directly disposed on the outer rear surface of the first pressing rod 15, and then the inner wall of the receiving cavity 151 is provided with a structure, such as a card slot.

The second pressing rod 20 is a round rod body and is mounted in the cavity 151 of the first pressing rod 15 like a piston. Specifically, one end of the second pressing rod 20 is the writing head 21, and the writing head 21 is detachably mounted on the second pressing rod 20. The other end opposite to the pen tip 21 is a catching end 22 having an outer diameter greater than the outer diameter of the second strut 20 . One end of the second pressing rod 20 mounting the pen head 21 is inserted into the cavity 151 from the opening 153 of the first pressing rod 15 and protrudes from the open end 152; the first end wall 153 and the card The holding end 22 is latched to prevent the second pressing rod 20 from being detached from the first pressing rod 15. In this embodiment, the elastic member 25 is a coil spring. The elastic member 25 is received in the cavity, and one end is abutted against the holding end 22, and the elastic member 25 is abutted away from the end of the second pressing rod 20. On the package block 155.

Further, the end of the second pressing rod 20 away from the first pressing rod 15 is provided with a connecting portion 23, and the writing head 25 is detachably connected to the connecting portion 23. In this embodiment, the connecting portion 23 of the second pressing rod 20 for mounting the pen head 21 is an internal thread disposed at an end of the second pressing rod 20, and the pen head 21 passes through a connecting post having an external thread. The internal thread of the second pressure bar 20 is connected. The internal thread may be directly disposed in the hole of the end of the second pressing rod 20, or may be a bolt fixed to the end of the second pressing rod 20. The pen tip 21 can be resized according to the actual needs of the earpiece.

Referring to FIG. 2 and FIG. 3 , the elastic member 25 and the second pressing rod 20 are sequentially received in the cavity 151 of the first pressing rod 15 along the axial direction of the first pressing rod 15 . The first end wall 15 is engaged with the holding end 22, and the two ends of the elastic member 25 abut the second end wall (the packing block 155) and the holding end 22 of the second pressing rod 20, and the elastic member is at The first pressing rod 15 is axially slidably mounted in the receiving cavity 151 of the pen holder 10 along the pen holder 10, and the first pressing rod 15 is provided with an open end and a fixing of the pen holder 10. The seats 104 are spaced apart. The latching groove 156 of the first pressing rod 15 is engaged with the elastic end 302 of the elastic limiting member 30 and is restricted to the pen holder. Pressing the earpiece to the terminal housing in the writing head 2 causes the adhesive to fix it, and the second pressing rod 20 is slid into the first pressing rod 15 by pressing, and the elastic member 15 is compressed when elastic When the length of the piece 15 is compressed to 5 mm, that is, when the second pressing rod 20 slides 5 mm into the first pressing rod 15, the elastic member 25 is subjected to a pressure of about 6 N, and the earpiece of the terminal housing is pressed when this state is reached. The sealing adhesive can be activated effectively, which ensures the reliability of the attachment of the earpiece on the terminal housing. Pressing down again requires significant pressure, and the human hand feels the resistance lag to stop pressing down and complete the assembly.

Lifting the pen 21, the elastic member 25 restores the elastic force to return the second pressing rod 20 to the original position, the first pressing rod 15 receives the elastic force of the elastic member 25 to cause sliding, and the elastic end 302 moves to the position of the slot 156 to eject. It is again engaged with the card slot 156. It can be understood that the first pressing rod 15 can also be manually pushed back to the card slot 156 to be engaged with the elastic end 302. The tooling pen of the present application has elasticity to buffer the pressure, and the elastic limiting member 30 and the first pressing bar 15 are unlocked to remind the manual to stop pressing in time, thereby avoiding the earpiece due to excessive or too small assembly force. Bad problems such as damage or falling.

Referring to FIG. 4 and FIG. 5 again, in the embodiment, the tool suction pen 100 further includes an auxiliary spring 35, and the auxiliary spring 35 is received in the pen holder 10 to elastically resist the first pressure bar. 15. In this embodiment, the auxiliary spring 35 can directly abut the first pressing rod 15 and the inside of the pen holder 10. Under normal circumstances, when the elastic limiting member 30 is detached from the first pressing rod 15, and the operator has obvious hand sensing, the pressing is stopped. However, since the reaction time of the person is not stopped in time, the first pressure bar 15 continues to be subjected to pressure to move into the pen holder 10. Referring to FIG. 6 and FIG. 7, due to the presence of the auxiliary spring 35, the manual requires a large pressure. In order to compress the spring, the human hand must be able to perceive the pressure, and then stop pressing the pen tip in time to avoid continuing to press the second to damage the earpiece. The auxiliary spring 35 achieves a buffering effect. This is the strength of the elastic parts, the auxiliary spring, all the force sensing distance is greater than the average response time setting, to ensure that within a certain stroke, all the force superposition is not greater than the maximum bearing capacity of the earpiece (that is, the bearing pressure of the elastic member and the auxiliary spring) Do not exceed the maximum pressure of the earpiece)

Further, an end of the pen holder 10 away from the pen tip 21 is provided with an adjustment button 16 , and the adjustment button 16 is in abutment with the auxiliary spring bar 35 . Specifically, the auxiliary spring 35 is a coil spring. The fixing base 104 further includes a through hole penetrating the rod body 105 and the end 106. The adjusting key 16 is a round rod having a T-shaped cross section, and includes a resisting end 161. The adjusting button 16 is axially slid along the pen holder 10 and is mounted on the fixing base 104 through the through hole 107. The abutting end 161 is located in the receiving cavity 101 to resist the auxiliary spring bomb 35. One end is held by the end of the rod 105 of the fixing base 104; when the auxiliary spring 35 is twisted by external pressure, the auxiliary spring 35 is adjusted back to the normal state by pressing the adjusting key 16 multiple times. As shown in Figure 7.

Further, a guiding rod 18 is disposed on one end of the first pressing rod 15 toward the auxiliary spring 35, and the first pressing rod 15 moves and displaces according to the guiding rod 18 to compress and compress the auxiliary spring 35. Specifically, a position of the first pressing rod 15 adjacent to the second end wall 154 is provided with a through hole 158 extending through the first pressing rod 15 perpendicular to the axial direction of the first pressing rod 15, and the guiding rod 18 is received in The through hole 158 and one end expose the through hole 158. Of course, the guide bar 18 is also It may be formed by a vertical axial extension of the second end wall 154 of the first pressure bar 15 directly. A guiding groove 109 is disposed on the wall of the barrel of the pen holder 10 in the axial direction, and an end portion of the guiding rod 18 exposing the through hole 158 is slidably disposed in the guiding groove 109 and can slide along the axial direction of the pen holder 10 That is, sliding in the receiving cavity 101. Specifically, the guiding rod 18 has a strip shape, one end is slidably disposed on the guiding groove 109, and the other end is in contact with the packing block 155 of the first pressing rod 15; one end of the auxiliary spring 35 is connected with the first pressing rod 15 One end is connected to the adjustment key 16. When the first pressing rod 15 slides and compresses the auxiliary spring 35 in the receiving cavity 101, the guiding rod 18 slides in the guiding groove 109 to guide the first pressing rod 15 The offset of the first pressing rod 15 is prevented from being displaced due to the elastic force of the auxiliary spring 35. Further, the outer periphery of the pen holder 10 is further provided with a decorative cover 12. The decorative cover 12 is made of a rubber material, and is sleeved on the outer circumference of the pen holder 10 to shield the guiding groove 109, thereby maintaining the appearance integrity of the suction pen and increasing the aesthetic appearance. Moreover, the decorative cover 12 is relatively soft and comfortable to hold.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. These improvements and retouchings are also considered as The scope of protection of the invention.

Claims

A tooling pen for assembling a terminal electrical device, comprising:

a first pressing rod, a second pressing rod and an elastic member, the second pressing rod is provided with a writing head, and the second pressing rod is slidably coupled to the first pressing rod and elastically resists the elastic member;

a pen holder and an elastic limiting member, the pen holder receiving the first pressing rod, the elastic limiting member elastically locking the first pressing rod;

The pen tip is pressed to push the second pressing bar to slide relative to the first pressing bar and compress the elastic member, and the second pressing bar compresses the elastic member to push the elastic limiting member to move to unlock the The first pressing rod realizes the first pressing rod movement.
The tooling pen according to claim 1, wherein the tool suction pen further comprises an auxiliary spring, and the auxiliary spring is received in the pen holder to elastically abut the first pressing bar.
The tooling pen according to claim 2, wherein one end of the first pressing bar against the auxiliary spring is provided with a guiding rod, and the first pressing rod moves along the guiding rod sliding path Pushing the auxiliary spring.
A tooling pen according to claim 3, wherein the sum of the elastic forces of the auxiliary spring and the elastic member is such that the electrical device can withstand the maximum pressure.
A tooling pen according to any one of claims 1 to 4, wherein the elastic force of the elastic member is a pressure required for assembly of the electric device.
The tooling pen according to claim 3, wherein the cylinder wall of the pen holder is provided with a guiding groove along the axial direction, and the guiding rod is slidably disposed in the guiding groove and along the pen shaft Sliding in.
The tooling pen according to claim 3 or 6, wherein an end of the pen holder away from the pen tip is provided with an adjustment key, and the adjustment key elastically abuts against the auxiliary spring.
The tooling pen according to any one of claims 1 to 7, wherein the second pressing bar is provided with a connecting portion away from the end of the first pressing bar, and the pen head is detachably connected to the connecting Ministry.
The tooling pen according to any one of claims 1 to 7, wherein the elastic member and the second pressing bar are sequentially received in the first pressing bar along the axial direction of the first pressing bar. The first pressing rod is axially slidably mounted in the pen holder along the pen holder.
The tooling pen according to claim 9, wherein the first pressing rod is axially provided with a cavity penetrating the end portion, and the second pressing rod and the elastic member are received in the cavity, The pen tip exposes the first pressing bar, and the opposite ends of the elastic member respectively abut the second pressing bar and the cavity end wall.
The tooling pen according to claim 9 or 10, wherein the pen holder is provided with a receiving cavity, and the elastic limiting member comprises an elastic end, and the elastic limiting member is disposed on the pen holder and penetrates the pen The receiving cavity, the elastic end is engaged with the first pressing bar.
A tooling pen according to any one of claims 1 to 9, wherein the cavity comprises a first end wall and a second end wall opposite the first end wall, the second pressing bar being away from the pen tip One end is a holding end, the first end wall is engaged with the holding end, and one end of the elastic member away from the second pressing rod is fixed to the second end wall.
The tooling pen according to claim 7, wherein a fixing seat is connected to an end of the pen holder remote from the pen tip, and the adjusting key is slidably mounted on the fixing seat along the pen holder.
The tooling pen according to any one of claims 1 to 13, wherein the pen holder is externally provided with a decorative cover.