CN217669006U - Pin discharging clamp - Google Patents

Abstract

The utility model discloses a loose pin blowing anchor clamps, include: a through outer sleeve; the transfer sleeve is nested in the outer sleeve, the upper part of the transfer sleeve is provided with a hopper-shaped material storage space which is opened upwards, and the lower part of the transfer sleeve is provided with a guide pipe communicated with the material storage space; a loose pin; wherein: a first limiting structure is arranged in the outer sleeve; when the locking nut moves upwards, the elastic clamping block is extruded by the first limiting structure and the locking nut, and the hole in the elastic clamping block is reduced to clamp a workpiece; the lower part of the movable pin props against the position where the bottom of the material storage space is communicated with the guide pipe to realize plugging; and materials are injected into the material storage space, the movable pin is lifted to release the blockage, and the materials in the material storage space can enter the guide pipe and are discharged into a workpiece. Has the advantages of convenient operation, simple structure and the like.

Description

Pin discharging clamp

Technical Field

The utility model belongs to the device field of injecting the material into in to the work piece specifically is a loose pin blowing anchor clamps.

Background

In most processes of machining and testing a workpiece, the workpiece needs to be held by a jig. Because the structures of various workpieces are different, the clamp is required to be matched with the workpieces.

Fig. 1 shows a workpiece 1 which is hollow in its interior, is provided at its upper end with an opening 2 leading to its interior and is to be filled with material. The existing emptying devices are mainly used for solid or liquid materials. Emptying devices for gases usually have a very complicated structure. The added material is gas or liquid at normal temperature, but is vaporized in the high temperature processing environment of hundreds of degrees in the discharging process.

For the liquid material to be injected into the workpiece as described above, in order to avoid that the liquid is easily evaporated during discharging and escapes, so that the liquid material cannot be effectively injected into the workpiece. Therefore, a novel discharging clamp is needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect among the above-mentioned prior art, the utility model aims at providing a loose pin blowing anchor clamps, its break-make that adopts movable loose pin control channel/pipeline prevents the material after the gasification to escape, and adopt elastomeric element to realize the centre gripping, realize centre gripping blowing integration, in order to simplify external equipment's complexity.

The utility model provides a technical scheme that its technical problem adopted is:

a pin blanking clamp, comprising:

a through outer sleeve;

an elastic clamping block which is at least partially or integrally nested in the outer sleeve and is provided with a hole,

the transfer sleeve is nested in the outer sleeve and can be relatively fixed with the outer sleeve, wherein the upper part of the transfer sleeve is provided with a hopper-shaped material storage space with an upward opening, and the lower part of the transfer sleeve is a conduit communicated with the material storage space;

a loose pin that can be lifted up or lowered down; wherein:

a first limiting structure is arranged in the outer sleeve;

when the locking nut moves towards the direction close to the first limiting structure, the elastic clamping block is extruded by the first limiting structure and the locking nut, so that the elastic clamping block can extend along the radial direction to generate elastic deformation, and the hole on the elastic clamping block is reduced to clamp a workpiece;

the lower part of the movable pin is abutted against the position where the bottom of the material storage space is communicated with the guide pipe to realize plugging;

and materials are injected into the material storage space, the movable pin is lifted to release the blockage, and the materials in the material storage space can enter the guide pipe and are discharged into a workpiece.

Compared with the prior art, the beneficial effects of the utility model mainly include:

the elastic clamping blocks are used for clamping the workpiece, the workpiece is not easy to scratch, and lossless clamping is realized. The fastening is realized by means of the thread fit between the outer sleeve and the locking nut, the clamping operation is very convenient, and the operation steps only comprise inserting a workpiece and rotating the locking nut. In addition, the deformation degree and the clamping degree of the elastic clamping block can be adjusted by controlling the engineering of the locking nut moving along the axial direction of the outer sleeve, and the clamping degree is easier to control by controlling the rotating angle (the number of turns) of the locking nut. The clamping device can also adapt to workpieces with different specifications in a certain range by utilizing elastic deformation, so that the clamping device has certain flexibility and adaptability.

When the material is prepared to be discharged, firstly, the material is injected and kept in the material storage space, after the material is completely discharged, the movable pin is lifted to remove the blockage, so that the material is quickly discharged downwards into the guide pipe, and then the movable pin is discharged to be blocked again. Thus, the control of the material injection process is realized through a simple structure.

Use the blowing anchor clamps, it is more convenient for install on corresponding charging equipment, can realize centre gripping and reinforced.

Optionally, the loose pin emptying clamp further comprises a horizontal pushing bearing, the middle of the horizontal pushing bearing is penetrated to allow the workpiece to pass through, wherein the horizontal pushing bearing is coupled between the locking nut and the elastic clamping block to allow the transmission of the force of the locking nut against the elastic clamping block, and simultaneously can block the transmission of the torque between the locking nut and the elastic clamping block.

Optionally, the loose pin emptying clamp further comprises a bearing cushion block, the middle of the bearing cushion block is through to allow the workpiece to pass through, wherein one side end face of the bearing cushion block can be abutted against the elastic clamping block, and the other side end of the elastic clamping block can be abutted against one end of the horizontal push bearing.

Optionally, the bearing pad is provided with a tail, wherein:

the tail part is nested in the middle of the horizontal push bearing; or the tail part penetrates through the through holes in the middle of the horizontal pushing bearing and the cover plate in sequence and is nested in the through holes;

one end of the bearing cushion block, which is opposite to the elastic clamping block, is at least partially nested in the outer sleeve.

Optionally, a notch is arranged on the side wall of the middle part of the movable pin, and the notch is communicated to an opening on the upper end surface of the movable pin, wherein after being injected from the opening, the material flows out of the notch and is left in the material storage space.

Optionally, the lower side wall of the notch is a downwardly extending inclined wall;

at least part of the movable pin is made of magnetic materials and can be attracted by an external magnetic attraction device to be lifted upwards.

Optionally, the upper end of the outer sleeve is provided with a pressing sleeve, wherein:

the middle part of the pressing sleeve is provided with a hole;

the upper part of the movable pin can be nested in the hole on the pressing sleeve and further can abut against the inner wall of the hole, and the lower part of the movable pin can be kept to block the lower part of the material storage space.

Drawings

FIG. 1 is a schematic cross-sectional view of a workpiece.

Fig. 2 is an exploded view of an embodiment of a clamp.

FIG. 3 is a cross-sectional view of the outer sleeve according to the embodiment.

FIG. 4 is a sectional assembly view showing a holding structure of the jig according to the embodiment.

Fig. 5 is a sectional assembly view of the discharging device according to an embodiment.

Figure 6 is a schematic cross-sectional view of the collection sleeve of figure 5.

Fig. 7 is an exploded view of a discharging device according to another embodiment.

Fig. 8 is a schematic sectional exploded view of the transfer sleeve and the loose pin in the embodiment.

FIG. 9 is a schematic sectional view of the embodiment of the present invention showing the lower side of the material storage space in the transfer sleeve.

FIG. 10 is a schematic sectional view showing the assembly of the movable pin, the transfer sleeve, the outer sleeve and the capping mechanism in the embodiment.

Fig. 11 is a schematic front view of the capping mechanism in the embodiment.

FIG. 12 is a cross-sectional view of a multi-function clip in one embodiment.

Description of the figure numbers:

1. workpiece, 2. Opening.

10. The structure of the pipe comprises an outer sleeve, 101, a first sleeve part, 102, a second sleeve part, 103, a third sleeve part, 104, a fourth sleeve part, 11, threads, 12, a first connecting plate, 13, a second connecting plate, 14, a feeding air pipe, 15, a first air pipe and 16, a second air pipe.

20. Elastic clamping block, 21, through hole in the middle of elastic clamping block.

30. The horizontal push bearing, 31 the bearing cushion block, 32 the through hole in the middle of the bearing cushion block.

40. The locking nut, 41, a cover plate, 42, a through hole on the cover plate, 43 and a handle.

50. Aggregate casing, 51, first channel, 52, second channel, 53, third channel.

60. A transfer sleeve 61, a material storage space 62 and a conduit 62.

70. The loose pin, 71, the notch, 72, the opening on the end face of the loose pin.

80. The sealing mechanism comprises a sealing mechanism body, 81, a pressing sleeve, 82, a pressing cover, 83, a first sealing ring, 84, a second sealing ring, 85, a pressing rod and 86, and a spring.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Referring to fig. 2, the clip of the present embodiment mainly includes a hollow outer tube 10, an elastic clamping block 20, and a lock nut 40. Preferably, a horizontal thrust bearing 30 is also provided in the clamp.

Referring to fig. 3, the lower end of the outer casing 10 is a first casing part 101 with an inner diameter D1; on the upper side of the first sleeve part 101 is a second sleeve part 102 connected thereto, the inner diameter of which is D2. The internal diameter D1 of first sleeve portion 101 is greater than the internal diameter D2 of second sleeve portion 101, and then constitutes spacing step in the position that both inner walls link to each other, when offsetting with other subassemblies, can restrict this other subassemblies and move up.

The upper portion of the elastic clamping block 20 or the whole elastic clamping block is sleeved in the first sleeve pipe portion 101, and a through hole 21 is formed in the middle of the elastic clamping block 20.

The outer side of the first sleeve part 101 is provided with threads, the locking nut 40 is provided with internal threads, the locking nut and the internal threads are connected in a thread fit mode, and the position of the locking nut 40 in the axial direction of the first sleeve part 101 can be adjusted.

The lower end of the lock nut 40 is connected with a cover plate 41, and the middle part of the cover plate 41 is provided with a through hole 42. The horizontal push bearing 30 is disposed between the cover plate 41 and the elastic clamping block 20.

When the elastic clamping block is used, the horizontal pushing bearing 30 is clamped between the cover plate 41 and the elastic clamping block 20, the locking nut 40 is rotated to move upwards or downwards along the axial direction of the first sleeve part 101, and then the elastic clamping block 20 is squeezed or loosened along the axial direction. The flat push bearing 30 functions to block the transmission of torque from the lock nut 40 to the resilient clamp block 20.

The middle part of the horizontal push bearing 30 is through up and down. When loading the workpiece 1, the end provided with the opening 2 is passed through the through hole 42 of the cover plate 41, the middle part of the horizontal push bearing 30 and the through hole 21 of the elastic clamping block 20 in sequence. Subsequently, the locking nut 40 is rotated to move upwards, so as to press the elastic clamping block 20 to be compressed and deformed, and at this time, under the limiting action of the limiting step between the first sleeve part 101 and the second sleeve part 102, the elastic clamping block 20 is forced to be pressed and deformed inwards along the radial direction under the condition that the elastic clamping block is pressed upwards, so as to clamp the upper part of the workpiece 1, thereby realizing clamping.

When the workpiece 1 is unloaded, the lock nut 40 is rotated to move downward in the clamped state, and the elastic clamp blocks 20 are restored and further released outward from the upper portion of the workpiece 1, so that the workpiece can be removed.

In other embodiments, a bearing pad 31 is further disposed in the clamp, and is padded on the lower side of the elastic clamping block 20 between the elastic clamping block 20 and the horizontal pushing bearing 30.

Preferably, the outer diameter of the tail portion of the bearing pad 31 is smaller, and substantially matches or slightly smaller than the inner diameter of the through hole 42 of the cover plate 41.

When assembled, as shown in fig. 4, the tail of the bearing spacer 31 passes through the horizontal push bearing 30 and can extend into the through hole 42 of the cover plate 41, and the tail of the bearing spacer 31 and the through hole 42 of the cover plate 41 can slide relatively, so that the coaxial assembly can be maintained, the rotation process is stable and reliable, and the horizontal push bearing 30 is prevented from moving along the radial direction.

Preferably, in this example, the length of the first sleeve portion 101 is longer than the height of the elastic clamping block 20, so that when the two are assembled together, the elastic clamping block 20 is wholly nested in the first sleeve portion 101, and the head portion of the bearing pad 31 at least partially extends into the first sleeve portion 101. The width of the head of the bearing pad 31 matches or is slightly smaller than the inner diameter of the first sleeve part 101, and the two parts can be matched in a relative sliding manner.

Preferably, in a state that the elastic clamping block 20 does not clamp the workpiece 1, the bearing pad 31 or the horizontal pushing bearing 30 on the lower side of the elastic clamping block also keeps in contact with the elastic clamping block 20 or slightly bears the force, so that the elastic clamping block 20 is prevented from being loosened due to excessive downward movement, the clamping operation is facilitated again, and the stability is improved.

Further, for the convenience of operation, a handle 43 is fixedly connected to the lock nut 40.

Referring to fig. 2, the emptying device of the present embodiment includes the outer sleeve 10 and the aggregate sleeve 50. The lower part of the outer sleeve 10 is connected with a clamping mechanism which can be composed of the elastic clamping block 20, the horizontal pushing bearing 30, the locking nut 40 and the optional bearing cushion block 31, and can be further deformed on the basis of the clamping mechanism, or other structures in the prior art. The present embodiment does not specifically limit the structure of the chucking mechanism.

As an alternative way: the upper part of the outer sleeve 10 may be closed; it is also possible to provide an open structure at the upper part of the outer sleeve 10, and further add a cover mechanism 80 to close the opening.

As shown in fig. 3, a third casing pipe portion 103 is connected to an upper side of the second casing pipe portion 102 of the outer casing 10. The inner diameter of the third sleeve pipe part 103 is D3, wherein the inner diameter D2 of the second sleeve pipe part 102 is larger than the inner diameter D3 of the third sleeve pipe part 103, so that a limiting step is formed at the position where the inner walls of the third sleeve pipe part and the second sleeve pipe part are connected, and when the limiting step abuts against other components, the other components can be limited to move upwards.

Referring to fig. 5, the aggregate casing 50 is disposed within the second casing portion 102 of the outer casing 10, and the outer diameter of the aggregate casing 50 substantially matches or is interstitially joinable with the inner diameter of the second casing portion 102. The aggregate casing 50 may be threaded upwardly from the lower portion of the outer casing 10 to nest into the second casing portion 102.

As shown in connection with fig. 6, the aggregate casing 50 is hollow in the middle to form a channel, wherein: from the middle of the upper end surface of the aggregate casing 50 to the middle of the lower end surface thereof, a first channel 51 of an inverted cone shape and a second channel 52 of a cone shape are provided in communication with each other. Optionally, a third channel 53 is also provided.

As shown, the first channel 51 in the upper portion of the collection sleeve 50 is relatively large in size, and preferably has an open edge that abuts against the lower edge of the third sleeve portion 103 of the collection sleeve 50 to receive the material passing downwardly from the third sleeve portion 103. Or, alternatively, in other embodiments, the opening width of the upper side of the first channel 51 is larger than the inner diameter at the lower edge of the third sleeve part 103, and can also receive the material passing downwards from the third sleeve part 103.

The second passage 52 in the collection sleeve 50 is relatively small in size and its inclined conical surface is adapted to fit the upper opening of the workpiece 1 so that material entering the first passage 51 passes through the second passage 52 into the workpiece 1.

As shown in fig. 2, a first vent pipe 15, a second vent pipe 16 and a feed gas pipe 14 are further connected to the outer tube 10 and connected to the inner space of the outer tube 10.

The number of the vent pipes can be increased or decreased according to needs, and the vent pipes are mainly used for introducing gas or sucking gas or vacuumizing the workpiece 1.

The gas inlet pipe 14 is used for connecting a gas material source and injecting gas materials into the workpiece 1.

The opening at the upper end of the workpiece 1 is attached to the inner wall of the second channel 52 of the aggregate casing 50 for contact sealing, and the upper end surface of the aggregate casing 50 abuts against the step at the joint of the second casing part 102 and the third casing part 103 for contact sealing.

By combining the jigs and the emptying devices of the above embodiments, and sharing one outer sleeve 10, a jig with an emptying function can be obtained.

Further, in the aspect of the emptying function, the elastic clamping block 20 is arranged at the lower part of the outer sleeve 10. The elastic clamping block 20 is tightly attached to the inner wall of the outer sleeve 10, including but not limited to the position where the elastic clamping block is connected to the first sleeve part 101 and the second sleeve part 101, so as to perform a further sealing function. The elastic clamping blocks 20 are clamped with the workpiece 1 and also play a role in further sealing. Therefore, the sealing effect of the end, communicated to the workpiece 1, of the material inlet channel is improved.

In the above embodiments, the material of the elastic clamping block 20 can be selected according to the use environment. And under the high-temperature working condition of hundreds of degrees centigrade, the high-temperature resistant rubber is preferably selected.

As shown in fig. 7, in order to facilitate the charging of liquid or solid materials in other application fields, the discharging device of the embodiment includes the outer sleeve 10, the intermediate sleeve 60, and the movable pin 70. Preferably, the upper portion of the outer sleeve 10 is further provided with a capping mechanism 80.

The lower part of the outer sleeve 10 is connected with a clamping mechanism which can be composed of the elastic clamping block 20, the horizontal pushing bearing 30, the locking nut 40 and the optional bearing cushion block 31, and can be further deformed on the basis of the clamping mechanism, or other structures in the prior art. The present embodiment does not specifically limit the structure of the chucking mechanism.

As shown in fig. 8, the transfer sleeve 60 has a larger upper size and forms a hopper-shaped material storage space 61; the lower portion of the transfer sleeve 60 is small in size and forms an elongated conduit 62, and the stock space 61 communicates downwardly to the conduit 62.

The loose pin 70 can move downward in the direction indicated by the arrow B in the drawing or upward in the direction indicated by the arrow a in the drawing. Referring to fig. 9, when charging, the pin 70 drops into the stock space 61 at the upper part of the transfer sleeve 60 and blocks the lower side of the stock space 61, cutting off the communication between the stock space 61 and the conduit 62 at the lower side thereof. At this time, the material may be injected into the material storage space 61. Subsequently, the movable pin 70 is lifted upwards, the blocking of the lower side of the material storage space 61 is released, and the material can flow down into the conduit 62 quickly and can be injected into the workpiece 1 through other passages communicated with the conduit.

Preferably, a notch 71 is formed on a side wall of a central portion of the loose pin 70, and the notch 71 is connected to an opening 72 formed on an upper end surface of the loose pin 70. After the material is injected from the opening 72, the material flows out from the notch 71 and is retained in the material storage space 61.

In some embodiments, the conduit 62 is aligned with, or butted against, the opening 2 of the workpiece 1, or the conduit 62 extends into the opening 2.

In other applications, where several hundred degrees celsius are used, the conduit 62 may not be in direct fluid communication with the opening 2, but may instead be diffused into the workpiece 1 by vaporization.

It is further preferred that the lower side wall of the notch 72 is a downwardly extending inclined wall 73 to facilitate the flow of the material out completely and prevent the accumulation of the material in the loose pin 70.

The loose pin 70 may be moved up and down in various ways. For example, a pull cord (not shown) may be connected, which in turn is coupled to a drive device to drive the movement of the loose pin 70.

Alternatively, the loose pin 70 is preferably made of a magnetic material, such as a metal or alloy of a magnet, iron, or the like. The movable pin 70 is attracted by magnetic attraction and then moved upward, or the magnetic attraction is released and then moved downward. Preferably, an electromagnet (not shown) may be provided on an external device or apparatus, which is located relatively close to the upper space of the movable pin 70.

As described above, the movable pin 70 may be entirely made of a magnetic material, or a part thereof may be made of a magnetic material, and preferably, at least an upper portion of the movable pin 70 is made of a magnetic material.

Preferably, the capping mechanism 80 mainly includes a pressing sleeve 81 and a pressing cover 82.

Referring to fig. 10, the outer side of the upper end of the outer sleeve 10 is provided with a first connecting plate 12. The middle portion of the pressing sleeve 81 is also hollow, and is communicated with the inside of the outer sleeve 10. The pressing sleeve 81 and the first connecting plate 12 are fixed together by screws, and a first sealing ring 83 is arranged between the pressing sleeve and the first connecting plate to enable the pressing sleeve and the first connecting plate to be connected in a sealing mode.

Preferably, the inner diameter of the press sleeve 81 is slightly larger than the width of the loose pin 70 to allow at least the upper portion of the loose pin 70 to penetrate into the press sleeve 81. The upper end of the loose pin 70 can also abut against the inner wall of the pressing sleeve 81, so that the blocking failure of the loose pin 70 on the lower side of the material storage space 61 is prevented.

The transit sleeve 60 is sleeved in the outer sleeve 10.

A fourth casing pipe portion 104 is connected to an upper side of the third casing pipe portion 103 of the outer casing 10. The inner diameter of the fourth sleeve part 104 is D4, wherein the inner diameter D4 of the fourth sleeve part 104 is larger than the inner diameter D3 of the third sleeve part 103, and a limit step is formed at the position where the inner walls of the fourth sleeve part and the third sleeve part are connected. Thus, the first connection plate 12 is connected to the outer side of the upper end of the fourth sleeve portion 104.

Preferably, the upper portion of the transfer sleeve 60 is larger and nests within the fourth sleeve portion 104 of the outer sleeve 10; the lower portion of the transfer sleeve 60 is smaller and fits inside the third sleeve portion 103 of the outer sleeve 10. And the limit step at the joint of the fourth sleeve part 104 and the third sleeve part 103 can be abutted against the lower end surface of the upper part of the transfer sleeve 60, so as to support the transfer sleeve 60.

The pressing cover 82 can cover the pressing sleeve 81 to close the upper opening. Further, the open upper outer edge of the pressing sleeve 81 is provided with a second sealing ring 84, and when the pressing cover 82 is closed, the second sealing ring 84 is clamped between the second sealing ring and the pressing cover.

Further, the capping mechanism 80 is further provided with a pressing rod 85, and the middle part of the pressing rod 85 is rotatably coupled to the pressing sleeve 81. One end of the pressing rod 85 is connected with the pressing cover 82, and can also be rotatably connected with the pressing cover 82, and the pressing cover 82 can be opened or closed by operating the other end of the pressing rod 85.

Referring to fig. 11, further, a spring 86 is provided on the capping mechanism 80. In this embodiment, there are 2 springs 86 respectively located at the front side and the rear side of the pressing sleeve 81, wherein one end of the spring 86 is fixed with the pressing cover 82, the other end of the spring 86 is fixed with the pressing sleeve 81, and when the pressing cover 82 is closed, the spring 86 is in a stretching state, and the restoring force generated by the spring is applied to the pressing cover 82, so that the pressing cover 82 is pressed against the pressing sleeve 81 and is kept tightly closed.

The above embodiments can also be combined with each other to form a multifunctional clamp.

Referring to fig. 12, the multifunctional clip of the present embodiment includes at least two structures as follows:

the clamping structure mainly comprises the outer sleeve 10, the elastic clamping block 20, the horizontal pushing bearing 30 and the locking nut 40;

the discharging structure mainly comprises the outer sleeve 10 and the aggregate sleeve 50;

the other discharging structure mainly comprises the outer sleeve 10, the transfer sleeve 60 and the loose pin 70; and (c) a second step of,

the capping mechanism 80. In addition, other components further arranged in the above embodiments can be added.

As shown in the figure, the workpiece 1 penetrates the elastic clamp block 20 from below and is clamped by it. The top of the workpiece 1 may further extend into the collection sleeve 50 and abut against the inner wall of the collection sleeve 50 to receive the material.

In the above embodiment, the elastic clamping block 20 can be used for clamping the workpiece 1, so that the workpiece 1 is not easily scratched, and lossless clamping is realized.

The fastening is achieved by means of the threaded fit between the outer sleeve 10 and the lock nut 40, the clamping operation is very convenient, and the operation steps only include inserting or removing the workpiece 1 and rotating the lock nut 40. When the workpiece 1 is loaded, the locking nut 40 is rotated to move upwards, and the rotating angle corresponds to the distance of the upward movement, so that the deformation degree of the elastic clamping block 20 can be influenced, and the clamping degree can be adjusted. When the workpiece 1 is unloaded, the workpiece 1 can be taken down by rotating the lock nut 40 to move down.

Obviously, it is easy to control the angle (number of turns) of rotation of the lock nut, and the elastic clamping blocks 20 have a certain cushioning effect to prevent the application of excessive pre-tightening force. Utilize the work piece that elastic deformation centre gripping can also adapt to different specifications in certain extent, consequently have certain flexibility and adaptability.

The first channel 51 of the aggregate casing 50 facilitates the accumulation of material for injection into the workpiece 1. The workpiece 1 can be fully contacted and sealed with the second channel 52 only by being tightly propped upwards, and the operation is simple and convenient. In addition, the inner wall of the funnel-shaped second channel 52 can also be adapted to work pieces 1 of different specifications within a certain range, thereby having certain flexibility and adaptability.

When the material is prepared to be discharged, firstly, the material is injected and kept in the material storage space 61, after the material is completely discharged, the movable pin 70 is lifted to remove the blockage, so that the material is quickly discharged downwards into the guide pipe 62, and then the movable pin 70 is released to be blocked again. Thus, the control of the material injection process is realized through a simple structure.

The embodiments of the present invention are only used for illustration, and do not limit the scope of the claims, and other substantially equivalent alternatives that may be conceived by those skilled in the art are within the scope of the present invention.

Claims (10)

1. A pin baiting clamp, comprising:

a through outer sleeve pipe is arranged on the outer sleeve pipe,

an elastic clamping block which is at least partially or integrally nested in the outer sleeve and is provided with a hole,

a transfer sleeve nested in the outer sleeve and capable of being relatively fixed with the outer sleeve, wherein the upper part of the transfer sleeve is provided with a hopper-shaped material storage space with an upward opening, the lower part of the transfer sleeve is a conduit communicated with the material storage space,

a loose pin that can be lifted up or lowered down, wherein:

a first limiting structure is arranged in the outer sleeve;

when the locking nut moves towards the direction close to the first limiting structure, the elastic clamping block is extruded by the first limiting structure and the locking nut, so that the elastic clamping block can be stretched along the radial direction to generate elastic deformation, and the hole on the elastic clamping block is reduced to clamp a workpiece;

the lower part of the movable pin is abutted against the position where the bottom of the material storage space is communicated with the guide pipe to realize plugging;

and materials are injected into the material storage space, the movable pin is lifted to release the blockage, and the materials in the material storage space can enter the guide pipe and can be discharged into a workpiece.

2. The loose pin emptying clamp of claim 1, further comprising a flat push bearing, the middle of the flat push bearing is penetrated to allow the workpiece to pass through, wherein the flat push bearing is coupled between the lock nut and the elastic clamping block to allow the transmission of force of the lock nut against the elastic clamping block and simultaneously block the transmission of torque between the lock nut and the elastic clamping block.

3. The loose pin emptying clamp as claimed in claim 2, wherein a cover plate is connected to one end of the locking nut, and a through hole is formed in the cover plate to allow the workpiece to pass through;

one end of the horizontal pushing bearing can be propped against the cover plate.

4. The movable pin discharging clamp according to claim 3, further comprising a bearing pad, wherein the middle of the bearing pad is through to allow the workpiece to pass through, wherein one side end surface of the bearing pad is capable of abutting against the elastic clamping block, and the other side end of the elastic clamping block is capable of abutting against one end of the flat push bearing.

5. The loose pin emptying clamp according to claim 4, wherein the bearing cushion block is provided with a tail, wherein:

the tail part is nested in the middle of the horizontal pushing bearing; or the tail part penetrates through the through holes in the middle of the horizontal pushing bearing and the cover plate in sequence and is nested in the through holes;

one end of the bearing cushion block, which is propped against the elastic clamping block, is at least partially nested in the outer sleeve.

6. The movable pin emptying clamp as claimed in claim 1, wherein a notch is formed in the side wall of the middle part of the movable pin and is communicated with an opening on the upper end surface of the movable pin, and after the materials are injected from the opening, the materials flow out of the notch and are left in the material storage space.

7. The loose pin emptying clamp according to claim 1, wherein the lower side wall of the notch is a downward extending inclined wall;

at least part of the movable pin is made of magnetic material and can be attracted by an external magnetic attraction device to be lifted upwards.

8. The loose pin emptying clamp according to claim 7, wherein the upper part of the outer sleeve is provided with a cover mechanism which can be opened or closed.

9. The loose pin emptying clamp according to claim 1, wherein the upper end of the outer sleeve is provided with a pressing sleeve, wherein:

the middle part of the pressing sleeve is provided with a hole;

the upper part of the movable pin can be nested in the hole on the pressing sleeve and further can abut against the inner wall of the hole, and the lower part of the movable pin can be kept to block the lower part of the material storage space.

10. The loose pin emptying clamp according to claim 9, wherein a sealing ring is arranged between the pressing sleeve and the outer sleeve.

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