TWI537199B - Pneumatic clamping seat - Google Patents

Description

Pneumatic clamp

The invention relates to a clamping seat, in particular to a pneumatic clamping seat, which utilizes a pneumatic method to control the opening and closing of the clamping seat, so as to facilitate rapid replacement of the inflation shaft and improve the efficiency of the overall winding.

Press, the clamping device is mostly used for mounting on both ends of the inflation shaft, which can be used to remove or clamp the expansion shaft to prevent the expansion shaft from falling off. Therefore, the operation of the shaft expansion is completed. At this time, the clamping device can be released from the clamping state, and the inflation shaft can be replaced, and the next winding operation can be continued.

Please refer to the applicant's previous application for the Republic of China Patent Bulletin No. M443093, "The air-spinning retracting shaft drive positioning clamp with safety structure", which provides a pneumatic expansion retracting shaft drive positioning clamp with a safety structure, which includes There is a driving shaft 10, one end of which is coupled to a power source 90, a locking seat 20 and a bearing seat 30 are disposed thereon, and the other end of the driving shaft 10 is provided with a swellable volume. The accommodating slot 11 is disposed at one end of the shaft 91. The driving shaft 10 is disposed at the opposite side of the locking base 20 with at least one elastic key 41. The elastic key 41 is elastically protruded from the surface of the driving shaft 10 for The driving shaft 10 and the locking base 20 are engaged with each other, and a safety bolt 45 is correspondingly disposed at the locking seat 20, and one end of the safety bolt 45 can resist the surface of the elastic key 41; thereby, when the user presses The safety pin 45 can retract the elastic key 41 to the surface of the drive shaft 10, so that the drive shaft 10 and the lock base 20 can be movably separated, so that the lock base 20 can slide forward and backward along the drive shaft 10, One end of the inflation coil retracting shaft 91 is taken out or placed in the self-accommodating groove 11 to prevent the inflation from retracting the shaft 91. The accommodating groove 11 is accidentally taken out.

A positioning groove 22 is recessed in the direction of the bearing block 30 relative to the bearing housing 30, and a positioning block 32 is disposed on one side of the bearing housing 30 with respect to the positioning groove 22, and the positioning groove 22 and the positioning block are disposed. When 32 is opposite, the lock seat 20 is displaced in the direction of the conventional bearing housing 30 to form a second safety device.

The above-mentioned prior application technology is still insufficient for practicality and usability, and has the following two missing points, one of which is manual operation, and needs to be placed on both ends of the inflation coil retracting shaft 91. The seat can be taken out by pressing the safety bolt 45 of the locking seat 20, respectively. If the distance between the two ends is too long, the operator will reciprocate between the two ends, and the synchronization cannot be performed. Not only causes inconvenience to the operator, but also slows down the speed of the collection and affects the overall efficiency. On the other hand, when the prior art is installed on other more complicated retracting machines, it is not only a single inflation. When the operator wants to take out the work, the safety bolt 45 needs to be pressed a plurality of times, which is easy to cause injury to the operator's finger; according to the above-mentioned lack, the previously applied technology still has room for improvement.

In view of the above disadvantages, the present invention provides a pneumatic chuck safety structure, which utilizes a pneumatic method to control the opening and closing of the clamp seat, and can synchronously replace the two ends of the air expansion shaft to improve the efficiency of the overall winding.

The present invention provides a pneumatic clamp for mounting on an inflatable shaft, comprising: a rotating shaft body, one end of which is provided with a receiving portion, and the other end is provided with a driving portion, and the receiving portion is provided One end of the inflatable shaft is disposed; a movable seat is pivotally disposed on the outer side of the accommodating portion, and a sliding air chamber communicating with the air passage is spaced apart, and is slidable along the axial direction of the rotating shaft body; At least one elastic member for moving the movable seat normal to the inflation shaft to form a locking position; and an inflation means for changing the size of the sliding air chamber, and interlocking the movable seat relative to the inflation axis The direction of movement forms a disengagement position; thereby, the relative movement of the movable seat is controlled by the inflation means to facilitate rapid replacement of the inflation shaft and improve the efficiency of the winding.

According to the above, the present invention achieves one of the effects, wherein the inflation means includes an air passage disposed inside the rotating shaft body, and the air passage communicates with the slip chamber, and controls the movable seat relative to the inflation by means of air pressure. The shaft generates a clamping position and a disengagement position, and the technique of the prior application does not need to manually press the two ends of the inflation shaft, and the synchronous processing can be performed to save the time between the two ends of the operator. Speed up the volume of collection and improve overall efficiency.

By the above, the present invention achieves the second effect, wherein the operator does not need to directly operate the movable seat with the finger, and when the removal operation is to be performed, only the high pressure gas is injected into the airway, compared with the previous application. Technology can improve the ease of operation and reduce the occupational injuries caused by manual operation.

For the convenience of the description, the central idea expressed by the present invention in the column of the above summary of the invention is expressed by the specific embodiments. The various items in the embodiments are set forth in proportion to the description and not in the

1 is a schematic view of the present invention, FIG. 2 is an exploded perspective view of the present invention, FIG. 3 is a side view of the present invention, and FIG. 4 is a 4-4 cross-hatching arrow of FIG. The profile indicated by the direction. The pneumatic clamp of the present invention is mounted on an inflation shaft 10, which includes:

A rotating shaft body 20 is provided with a receiving portion 21 at one end and a driving portion 22 at the other end. The receiving portion 21 is slidably disposed at one end of the inflatable shaft 10 and can be coupled to the rotating shaft via the driving portion 22. The body 20 is synchronously driven to rotate the inflation shaft 10, wherein one side of the accommodating portion 21 is provided with at least one groove 21a, and a periphery of the accommodating portion 21 is provided with a first card portion 21b, and one end of the accommodating portion 21 is A U-shape, and one end of the inflation shaft 10 can be inserted or removed from the U-shaped notch.

A fixing block 30 has a locking portion 31 and a substantially U-shaped top portion 32, and the locking portion 31 just fills the notch of the receiving portion 21 to form a ring shape, and the fixing block 30 can be made. Located between the accommodating portion 21 and the inflation shaft 10.

A movable seat 40 is pivotally disposed on the outer side of the accommodating portion 21, and the movable seat 40 is slidably moved along the axial direction of the rotating shaft body 20, and is spaced apart from the movable seat 40 by the accommodating portion 21 An annular slip chamber 41, and the movable seat 40 is radially provided with a through hole 42 for a screw member 43 to pass through the through hole 42 and lock the locking portion 31 to the center of the movable seat 40, and The fixing block 30 is located between the accommodating portion 21 and the inflation shaft 10, wherein a side of the movable seat 40 is provided with a limiting portion 44, which can serve as a positioning function. Further, the periphery of one end of the movable seat 40 extends inwardly. The second card portion 45 is provided with an O-ring 41a on one side of the first card portion 21b and the second card portion 45, that is, the O-ring 41a is provided at each end of the sliding air chamber 41. The interior of the slip chamber 41 has an airtight effect.

At least one elastic member 50 is disposed on the recess 21a and located between the fixing block 30 and the receiving portion 21 and abuts against the fixing block 30. In this embodiment, the elastic member 50 and the concave portion The groove 21a can be two sets, and can be correspondingly disposed at two ends of the U-shaped top portion 32. The elastic member 50 can normally move the movable seat 40 toward the inflation shaft 10 and reduce the volume of the sliding air chamber 41. A locking position is formed to ensure that one end of the inflation shaft 10 is located between the accommodating portion 21 and the movable seat 40 and cannot be taken out.

An inflating means for changing the size of the sliding plenum 41, and moving the movable seat 40 in a direction away from the inflation shaft 10 to form a disengagement position. In the embodiment, the inflating means comprises a rotating shaft body The inner air passage 23 is 20, and the air passage 23 rotates the inside of the shaft body 20 in a straight manner, and branches to the side of the accommodating portion 21, wherein the air passage 23 can communicate with the slip chamber 41, when a high pressure gas When injected through the air passage 23, the slip chamber 41 communicating with the air passage 23 can be simultaneously filled. Since the O-ring 41a is provided at each end of the slip chamber 41, the high pressure gas can be injected into the slip chamber 41. An airtight effect is generated to move the movable seat 40 away from the inflation shaft 10, and a disengagement position is formed against the abutting portion 61 to expose the notch of the 21U-shaped portion for operation. The air shaft 23 is taken out or nested in the inflatable shaft 10, and the air passage 23 of the inflation means can also be disposed on the movable seat 40, and the air passage 23 can communicate with the sliding air chamber 41 to achieve the same effect (not shown). ).

A bearing block 60 is pivotally disposed on the rotating shaft body 20, and a locking portion 61 is disposed on a periphery of the pivoting portion of the bearing housing 60, and at least a bearing 62 is disposed between the bearing housing 60 and the rotating shaft body 20, The rotating shaft body 20 can be smoothly rotated in the bearing housing 60, and the rotating shaft body 20 can be pre-positioned by the bearing housing 60. In addition, a locking portion 61a is provided on the periphery of the locking portion 61 for receiving In the limiting portion 44 of the movable seat 40, the notch of the accommodating portion 21 can be directed upward. Based on the safety design, it can be used to prevent the user from inadvertently releasing the inflation when the notch of the accommodating portion 21 is directed downward. The securing relationship between the shaft 10 and the accommodating portion 21 causes the swellable shaft 10 to fall off (as shown in FIG. 3), whereby the safety design of the engaging portion 61a and the limiting portion 44 improves the overall safety.

The above is an overview of the structure and shape of the present invention, and the combination of the present invention and the principle of efficacy that can be achieved are as follows:

Referring to FIG. 5, FIG. 5 is a cross-sectional view showing the disengaged position of the present invention. In the present invention, the driving unit 22 can be connected to a power source, and the driving unit 22 can be driven by the power source to synchronously drive the air-expansion shaft 10. Rotation, and when the operator wants to take out the expansion shaft 10, the power source must first be stopped, so that the rotating shaft body 20 can be stopped, the high pressure gas can be injected through the air passage 23, due to the air passage 23 and The slip chambers 41 are in communication with each other, and the slip chambers 41 are circumferentially surrounded by the side of the accommodating portion 21 in a symmetrical manner. At this time, the high pressure gas is filled in the slip chamber 41 and is matched with the O type. The airtight effect formed by the ring 41a causes the pressure of the conveying gas to expand to be greater than the restoring elastic force of the elastic member 50, so that the movable seat 40 can move in the direction away from the inflation shaft 10 in the axial direction of the rotating shaft body 20, and at the same time change the slip. The air venting chamber 41 is sized and abuts against the card abutting portion 61 to form a disengagement position. Thus, the two ends of the inflation shaft 10 can be simultaneously processed by the air pressure, and at the same time, one end of the inflation shaft 10 is exposed. Placed at the notch of the 21U type, operate The air shaft 10 can be removed quickly and directly, to accelerate the speed of take-up of the next stage, to enhance the efficiency of the overall retractor.

Referring to FIG. 4 and FIG. 5, FIG. 4 is a cross-sectional view showing a state in which the fastening position of the present invention is implemented, and FIG. 5 is a schematic view showing an operation state of the present invention. When the operator wants to perform the setting operation of the inflation shaft 10, the connection can be continued. In the above operation, the movable seat 40 is positioned in the disengaged position by air pressure, and the engaging portion is accommodated in the limiting portion, so that the notch of the receiving portion 21U is exposed above the HSI, and the operator is available. The inflation shaft 10 to be replaced is directly inserted into the accommodating portion 21 from above. At this time, after the confirmation is completed, the injection of the high pressure gas can be stopped, and when the air passage 23 and the slip chamber 41 lose the supply of the air pressure, the elastic member The resilience of the elastic force of 50 will automatically abut against the fixed block 30, and the movable seat 40 will normally move toward the inflation shaft 10, and finally the first card portion 21b and the second card portion 45 are offset from each other to form a locking position. At the same time, one end of the inflation shaft 10 is fastened between the accommodating portion 21 and the movable seat 40 so as to be unable to be taken out, so that one end of the inflation shaft 10 can be positioned in the accommodating portion 21 and powered by the power source. Driving the driving portion 22 to synchronously drive the inflation shaft 10 to rotate, so that The convenience of the operator to remove or replace the inflation shaft 10 is improved.

In summary, the pneumatic clamp of the present invention controls the movable seat 40 to be locked and disengaged relative to the inflation shaft 10 by means of air pressure, and is not required to be manually compared to the prior application. The action of pressing the two ends of the inflation shaft 10 can reduce the occupational injury caused by manual operation due to manual operation, and can also be processed synchronously, saving the operator from reciprocating between the two ends and speeding up the winding speed. Improve the overall efficiency and improve the convenience of the overall clamping operation.

While the invention has been described in terms of a preferred embodiment, the various embodiments may The above embodiments are merely illustrative of the invention and are not intended to limit the scope of the invention. All modifications or changes made without departing from the spirit of the invention are within the scope of the invention.

10‧‧‧Inflatable shaft
20‧‧‧Rotating shaft
21‧‧‧ 容部
22‧‧‧ Drive Department
23‧‧‧ Airway
21a‧‧‧ Groove
21b‧‧‧First Card Department
30‧‧‧Fixed blocks
31‧‧‧Locking
32‧‧‧ arrive at the top
40‧‧‧ activity seat
41‧‧‧Slip chamber
42‧‧‧Perforation
43‧‧‧ screw
44‧‧‧Limited
45‧‧‧Second Card Department
41a‧‧‧O-ring
50‧‧‧Flexible parts
60‧‧‧ bearing housing
61‧‧‧Cards
61a‧‧‧With the Ministry
62‧‧‧ bearing

Fig. 1 is a schematic view showing the appearance of the present invention. Fig. 2 is an exploded perspective view of the present invention. Fig. 3 is a side view showing the present invention. Fig. 4 is a cross-sectional view taken along the line 4-4 of Fig. 3 and the direction of the arrow. Fig. 5 is a cross-sectional view showing an embodiment of the disengaged position of the present invention. Fig. 6 is a cross-sectional view showing an implementation state of a fastening position of the present invention. Fig. 7 is a schematic view showing the state after inflation of the present invention.

20‧‧‧Rotating shaft

21‧‧‧ 容部

22‧‧‧ Drive Department

21a‧‧‧ Groove

30‧‧‧Fixed blocks

31‧‧‧Locking

32‧‧‧ arrive at the top

40‧‧‧ activity seat

41a‧‧‧O-ring

42‧‧‧Perforation

43‧‧‧ screw

44‧‧‧Limited

50‧‧‧Flexible parts

60‧‧‧ bearing housing

61‧‧‧Cards

61a‧‧‧With the Ministry

62‧‧‧ bearing

Claims (10)

The utility model relates to a pneumatic clamping seat, which is arranged to be mounted on an inflatable shaft, which comprises: a rotating shaft body, one end of which is provided with a receiving portion, and the other end is provided with a driving portion, and the receiving portion is provided for clamping One end of the inflation shaft; a movable seat disposed on the outer side of the accommodating portion, and slidable along the axial direction of the rotating shaft body, and spaced apart from the movable seat at the accommodating portion a sliding air chamber; at least one elastic member for moving the movable seat normal toward the inflation shaft to form a locking position; and an inflation means for changing the size of the sliding air chamber, and interlocking The movable seat is moved away from the inflation axis to form a disengaged position. The pneumatic chuck according to claim 1, wherein the inflating means comprises an air passage disposed inside the rotating shaft body, and the air passage communicates with the sliding air chamber to allow a high pressure gas to be injected from the air passage. And connected to the slip chamber. The pneumatic clamp of claim 2, wherein the air passage is disposed in a straight manner inside the rotating shaft body, and branches to the side of the receiving portion, when the high pressure gas fills the air passage and When the air chamber is slipped, the movable seat can be brought into a disengaged position with respect to the inflation shaft. The pneumatic clamp according to claim 1, further comprising a fixing block that is locked at a center of the movable seat and located between the receiving portion and the inflation shaft, and the elastic The component is disposed between the fixing block and the receiving portion. The pneumatic clamp according to claim 4, wherein the fixing block has a U-shaped top portion for abutting against one end of the elastic member. The pneumatic holder according to claim 1, wherein one side of the receiving portion is provided with at least one groove for receiving the elastic member. The pneumatic clamp according to claim 1, wherein one end of the receiving portion has a U shape. The pneumatic chuck of claim 1 , wherein a first card portion is disposed on a periphery of the receiving portion, and a second card portion extends from a periphery of one end of the movable seat, and the first card portion is An O-ring is disposed on one side of the second card portion. The pneumatic clamp according to claim 1, further comprising a bearing seat pivotally disposed on the rotating shaft body and having a locking portion at a periphery of the pivoting portion of the bearing seat, when in the disengaged position , the effect of the event seat can be reached. The pneumatic clamp according to claim 1, wherein a side of the movable seat is provided with a limiting portion, and an engaging portion that can be accommodated in the limiting portion is disposed corresponding to the periphery of the engaging portion.