Material box clamping arm

Abstract

The utility model discloses a material box clamping arm which comprises a first worm gear, a second worm gear, a frame body, a worm, a first clamping arm and a second clamping arm, the first worm gear and the second worm gear are rotationally arranged on the frame body, the first clamping arm is arranged on the first worm gear, and the second clamping arm is arranged on the second worm gear. The worm is provided with a first rotating tooth face and a second rotating tooth face, the first rotating tooth face is matched with the first worm wheel, the second rotating tooth face is matched with the second worm wheel, the rotating direction of the first rotating tooth face is opposite to that of the second rotating tooth face, and the first clamping arm and the second clamping arm are each provided with a clamping air bag. The clamping arm has the following beneficial effects that flexible clamping of objects is achieved, and mechanical damage to clamped materials can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of clamping equipment, in particular to a material box clamping arm. Background Art

[0002] The clamping arm is a commonly used clamping device. The structure of the commonly used clamping arm is shown in the patent publication document CN217072368U. The clamping arm with this structure is a rigid clamping when clamping an object, and the rigid clamping process may cause certain damage to the clamped object. Utility Model Content

[0003] In view of the above problems, the utility model provides a material box clamping arm.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A material box clamping arm comprises a first worm gear, a second worm gear, a frame, a worm, a first clamping arm and a second clamping arm, the first worm gear and the second worm gear are rotatably arranged on the frame, the first clamping arm is arranged on the first worm gear, the second clamping arm is arranged on the second worm gear, the worm is provided with a first spiral tooth surface and a second spiral tooth surface, the first spiral tooth surface cooperates with the first worm gear, the second spiral tooth surface cooperates with the second worm gear, the rotation directions of the first spiral tooth surface and the second spiral tooth surface are opposite, and the first clamping arm and the second clamping arm are both provided with clamping airbags.

[0006] In this clamping arm, the first worm gear and the second worm gear are rotatably installed on the frame, and the worm is provided with a first spiral tooth surface and a second spiral tooth surface, the first spiral tooth surface cooperates with the first worm gear, and the second spiral tooth surface cooperates with the second worm gear, and the rotation directions of the first spiral tooth surface and the second spiral tooth surface are opposite, and the first clamping arm is arranged on the first worm gear, and the second clamping arm is arranged on the second worm gear, so when the worm rotates, it can drive the first clamping arm and the second clamping arm to move closer to each other or away from each other, and at the same time, since clamping airbags are provided on the first clamping arm and the second clamping arm, the first clamping arm and the second clamping arm contact with the clamped object through the clamping airbags, so that the first clamping arm and the second clamping arm realize flexible clamping of the object, and the flexible clamping can avoid mechanical damage to the clamped material.

[0007] In summary, the clamping arm has clamping airbags on the first clamping arm and the second clamping arm, and the clamping airbags are in contact with the clamped object, which achieves flexible clamping of the object and avoids mechanical damage to the clamped material.

[0008] Optionally, it also includes an adjustment tooth bar and an adjustment shaft, wherein the adjustment tooth bar is arranged on the frame, and the adjustment shaft is detachably arranged on the adjustment tooth bar through an adjustment nut, and there are two adjustment shafts, which are in a parallel state, and the first worm gear and the second worm gear are respectively rotatably arranged on an adjustment shaft.

[0009] Specifically, the adjustment shaft is installed on the adjustment tooth bar through the adjustment nut. By turning the adjustment nut, the position of the adjustment shaft on the adjustment tooth bar can be changed, thereby changing the position of the adjustment shaft on the frame body, so that the relative distance between the two adjustment shafts can be adjusted, so that the relative distance between the first worm gear and the second worm gear can be adjusted, thereby adjusting the relative distance between the first clamping arm and the second clamping arm. Therefore, this clamping arm can adjust the distance between the first clamping arm and the second clamping arm according to the size of the clamped object.

[0010] Optionally, a slide groove is provided on the frame, and the adjustment shaft is located in the slide groove.

[0011] There are two specific slide grooves, and each adjustment shaft is located in a slide groove. When the adjustment nut is turned, the adjustment shaft moves in the slide groove, and the movement range of the adjustment shaft is the width of the slide groove, which can specifically limit the adjustment of the first worm gear and the second worm gear.

[0012] Optionally, a rotary bearing is provided between the first worm gear and the adjusting shaft, and a rotary bearing is provided between the second worm gear and the adjusting shaft.

[0013] The function of setting the rotating bearing is to ensure that the first worm gear and the second worm gear rotate more smoothly.

[0014] Optionally, a circular arc waist hole is formed on the first clamp arm, and a circular arc waist hole is formed on the second clamp arm. The first clamp arm is installed on the first worm gear via a fastening screw, and the second clamp arm is installed on the second worm gear via a fastening screw, and the fastening screw is located in the circular arc waist hole.

[0015] In the above structure, an arc waist hole is provided on the first clamp arm, and an arc waist hole is provided on the second clamp arm. The first clamp arm is installed on the first worm gear through a fastening screw, and the second clamp arm is installed on the second worm gear through a fastening screw. The fastening screw is located in the arc waist hole. Since the fastening screw is located in the arc waist hole, when the fastening screw is loosened, the first clamp arm can rotate relative to the first worm gear, and the second clamp arm can rotate relative to the second worm gear. When the fastening screw is tightened again, the first clamp arm can be fixed relative to the first worm gear, and the second clamp arm can be fixed relative to the second worm gear.

[0016] Optionally, a coupling and a motor are also included, and the shaft of the motor is connected to the worm through the coupling.

[0017] The function of the motor is to drive the worm to rotate.

[0018] Optionally, a support bearing is further included, wherein the support bearing is arranged on the frame, and the worm and the support bearing are rotatably matched together.

[0019] Optionally, the clamping airbag is connected to an exhaust pipe, and the exhaust pipe is connected to an air pressure switch.

[0020] Optionally, the first clamping arm and the second clamping arm are consistent in shape and size.

[0021] The beneficial effects of the utility model are as follows: by arranging clamping airbags on the first clamping arm and the second clamping arm, the clamping airbags are in contact with the clamped object, thereby achieving flexible clamping of the object and avoiding mechanical damage to the clamped material; the distance between the first clamping arm and the second clamping arm can be adjusted according to the size of the clamped object. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the material box clamping arm;

[0023] Figure 2 It is a schematic diagram of the matching relationship between the worm, the first worm wheel and the second worm wheel;

[0024] Figure 3 It is a schematic diagram of the matching relationship between the first worm wheel and the worm.

[0025] The reference numerals in the figure are: 1. clamping airbag; 2. exhaust pipe; 3. air pressure switch; 41. first clamping arm; 42. second clamping arm; 421. arc waist hole; 5. fastening screw; 6. adjusting tooth bar; 7. frame; 701. slide groove; 8. worm; 801. first rotating tooth surface; 802. second rotating tooth surface; 9. support bearing; 10. coupling; 11. motor; 12. adjustment shaft; 131. first worm gear; 132. second worm gear; 14. adjustment nut; 15. rotating bearing. DETAILED DESCRIPTION

[0026] The utility model is described in detail below in conjunction with the accompanying drawings.

[0027] As attached Figure 1 , Attachment Figure 2 And attached Figure 3As shown, a material box clamping arm includes a first worm gear 131, a second worm gear 132, a frame 7, a worm 8, a first clamping arm 41 and a second clamping arm 42. The first worm gear 131 and the second worm gear 132 are rotatably arranged on the frame 7, the first clamping arm is arranged on the first worm gear 131, and the second clamping arm 42 is arranged on the second worm gear 132. The worm 8 is provided with a first rotating tooth surface 801 and a second rotating tooth surface 802, the first rotating tooth surface 801 is matched with the first worm gear 131, and the second rotating tooth surface 802 is matched with the second worm gear 132, the rotation directions of the first rotating tooth surface 801 and the second rotating tooth surface 802 are opposite, and the first clamping arm 41 and the second clamping arm 42 are both provided with a clamping airbag 1.

[0028] In this clamping arm, the first worm gear 131 and the second worm gear 132 are rotatably mounted on the frame 7, and the worm 8 is provided with a first spiral tooth surface 801 and a second spiral tooth surface 802, the first spiral tooth surface 801 cooperates with the first worm gear 131, and the second spiral tooth surface 802 cooperates with the second worm gear 132, the rotation direction of the first spiral tooth surface 801 and the second spiral tooth surface 802 are opposite, and the first clamping arm is arranged on the first worm gear 131, and the second clamping arm 42 is arranged on the second worm gear 132, so when the worm 8 rotates, it can drive the first clamping arm 41 and the second clamping arm 42 to move closer to each other or away from each other. At the same time, since the first clamping arm 41 and the second clamping arm 42 are both provided with a clamping airbag 1, the first clamping arm 41 and the second clamping arm 42 contact the clamped object through the clamping airbag 1, so that the first clamping arm 41 and the second clamping arm 42 realize flexible clamping of the object, and the flexible clamping can avoid mechanical damage to the clamped material.

[0029] Attached Figure 1 The directions of the two arc double arrows are the rotation directions of the first clamping arm 41 and the second clamping arm 42 .

[0030] In summary, the clamping arm is provided with a clamping airbag 1 on the first clamping arm 41 and the second clamping arm 42, and the clamping airbag 1 contacts the clamped object, which realizes flexible clamping of the object and can avoid mechanical damage to the clamped material.

[0031] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, it also includes an adjusting tooth bar 6 and an adjusting shaft 12. The adjusting tooth bar 6 is set on the frame 7. The adjusting shaft 12 is detachably set on the adjusting tooth bar 6 through an adjusting nut 14. There are two adjusting shafts 12, and the two adjusting shafts 12 are in a parallel state. The first worm gear 131 and the second worm gear 132 are respectively rotatably set on one adjusting shaft 12.

[0032] Specifically, the adjustment shaft 12 is installed on the adjustment tooth bar through the adjustment nut 14. By screwing the adjustment nut 14, the position of the adjustment shaft 12 on the adjustment tooth bar 6 can be changed, thereby changing the position of the adjustment shaft 12 on the frame 7, so that the relative distance between the two adjustment shafts 12 can be adjusted, so that the relative distance between the first worm gear 131 and the second worm gear 132 can be adjusted, thereby adjusting the relative distance between the first clamp arm 41 and the second clamp arm 42.

[0033] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, a slide groove 701 is provided on the frame 7 , and the adjustment shaft 12 is located in the slide groove 701 .

[0034] There are two specific slide grooves 701, and each adjustment shaft 12 is located in one slide groove 701. When the adjustment nut 14 is turned, the adjustment shaft 12 moves in the slide groove 701, and the movement range of the adjustment shaft 12 is the width of the slide groove 701, which can specifically limit the adjustment of the first worm gear 131 and the second worm gear 132. Therefore, in this clamping arm, the distance between the first clamping arm 41 and the second clamping arm 42 can be adjusted by turning the adjustment nut 14.

[0035] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, a rotary bearing 15 is provided between the first worm gear 131 and the adjusting shaft 12 , and a rotary bearing 15 is provided between the second worm gear 132 and the adjusting shaft 12 .

[0036] The function of providing the rotating bearing 15 is to ensure that the first worm gear 131 and the second worm gear 132 rotate more smoothly.

[0037] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, a circular waist hole 421 is opened on the first clamp arm 41, and a circular waist hole 421 is opened on the second clamp arm 42. The first clamp arm 41 is installed on the first worm gear 131 through the fastening screw 5, and the second clamp arm 42 is installed on the second worm gear 132 through the fastening screw 5. The fastening screw 5 is located in the circular waist hole 421.

[0038] In the above structure, the first clamp arm 41 is provided with an arc waist hole 421, and the second clamp arm 42 is provided with an arc waist hole 421. The first clamp arm 41 is installed on the first worm gear 131 through the fastening screw 5, and the second clamp arm 42 is installed on the second worm gear 132 through the fastening screw 5. The fastening screw 5 is located in the arc waist hole 421. Since the fastening screw 5 is located in the arc waist hole 421, when the fastening screw 5 is loosened, the first clamp arm 41 can rotate relative to the first worm gear 131, and the second clamp arm 42 can rotate relative to the second worm gear 132. When the fastening screw 5 is tightened again, the first clamp arm 41 can be fixed relative to the first worm gear 131, and the second clamp arm 42 can be fixed relative to the second worm gear 132. Therefore, this type of clamping arm can adjust the installation of the first clamp arm 41 and the second clamp arm 42 by screwing the fastening screw 5. When the first worm gear 131 rotates a certain angle, the first clamping arm 41 and the first worm gear 131 can be fixed; when the second worm gear 132 rotates a certain angle, the second clamping arm 42 and the second worm gear 132 can be fixed.

[0039] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, it also includes a coupling 10 and a motor 11 , and the shaft of the motor 11 is connected to the worm 8 through the coupling 10 .

[0040] The function of the motor 11 is to drive the worm 8 to rotate.

[0041] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, it also includes a support bearing 9, which is arranged on the frame 7, and the worm 8 and the support bearing 9 are rotatably matched together.

[0042] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, the clamping airbag 1 is connected to an exhaust pipe 2, and the exhaust pipe 2 is connected to an air pressure switch 3.

[0043] The air pressure switch 3 and the exhaust pipe 2 function to inflate and deflate the clamping airbag 1 .

[0044] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, the first clamping arm 41 and the second clamping arm 42 are consistent in shape and size.

[0045] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A material box clamping arm, characterized in that: The invention comprises a first worm gear, a second worm gear, a frame, a worm, a first clamp arm and a second clamp arm, wherein the first worm gear and the second worm gear are rotatably arranged on the frame, the first clamp arm is arranged on the first worm gear, the second clamp arm is arranged on the second worm gear, the worm is provided with a first spiral tooth surface and a second spiral tooth surface, the first spiral tooth surface cooperates with the first worm gear, the second spiral tooth surface cooperates with the second worm gear, the rotation directions of the first spiral tooth surface and the second spiral tooth surface are opposite, and the first clamp arm and the second clamp arm are both provided with clamping airbags.

2. The material box clamping arm according to claim 1, characterized in that: It also includes an adjusting tooth bar and an adjusting shaft, wherein the adjusting tooth bar is arranged on the frame, and the adjusting shaft is detachably arranged on the adjusting tooth bar through an adjusting nut. There are two adjusting shafts, and the two adjusting shafts are in a parallel state. The first worm gear and the second worm gear are respectively rotatably arranged on one adjusting shaft.

3. The material box clamping arm according to claim 2, characterized in that: The frame is provided with a slide groove, and the adjustment shaft is located in the slide groove.

4. The material box clamping arm according to claim 2, characterized in that: A rotary bearing is arranged between the first worm gear and the adjusting shaft, and a rotary bearing is arranged between the second worm gear and the adjusting shaft.

5. The material box clamping arm according to claim 1, characterized in that: The first clamp arm is provided with an arc waist hole, the second clamp arm is provided with an arc waist hole, the first clamp arm is installed on the first worm gear through a fastening screw, the second clamp arm is installed on the second worm gear through a fastening screw, and the fastening screw is located in the arc waist hole.

6. The material box clamping arm according to claim 1, characterized in that: It also includes a coupling and a motor, and the shaft of the motor is connected to the worm through the coupling.

7. The material box clamping arm according to claim 1, characterized in that: It also includes a support bearing, which is arranged on the frame body, and the worm and the support bearing are rotatably matched together.

8. The material box clamping arm according to claim 1, characterized in that: The clamping airbag is connected with an exhaust pipe, and the exhaust pipe is connected with an air pressure switch.

9. The material box clamping arm according to claim 1, characterized in that: The first clamping arm and the second clamping arm are consistent in shape and size.

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