CN113732758B

CN113732758B - Special clamping and fixing device for metal cutting milling machine

Info

Publication number: CN113732758B
Application number: CN202111102520.XA
Authority: CN
Inventors: 赵宏刚; 陈创亮
Original assignee: Songrun Intelligent Technology Chongqing Co ltd
Current assignee: Songrun Intelligent Technology Chongqing Co ltd
Priority date: 2021-09-20
Filing date: 2021-09-20
Publication date: 2022-08-16
Anticipated expiration: 2041-09-20
Also published as: CN113732758A

Abstract

The invention discloses a special clamping and fixing device for a metal cutting milling machine, and relates to the technical field of clamps.A first clamping component is arranged on a first rack in a sliding manner; two sides of the second rack are movably provided with a second clamping assembly, and a third clamping assembly is slidably arranged on the second rack; a second screw rod is rotatably mounted on the second rack, the second screw rod is connected with a third clamping assembly through a screw pair, one end of the second screw rod is slidably provided with a sleeve, one end of the sleeve is provided with a spline groove, the second rack is also rotatably provided with a first screw rod, the first screw rod is provided with an inclined plane sliding seat in threaded fit, the inclined plane sliding seat is slidably connected with the second rack, one end of the first screw rod is slidably provided with a spline cylinder, the spline cylinder is matched with the spline groove in the sleeve, and the third clamping assembly is provided with an elastic shifting piece for shifting the spline cylinder; the workpiece clamping device can quickly clamp workpieces, limits the displacement of the clamping assembly and ensures that the workpieces are not damaged in the workpiece clamping process.

Description

Special clamping and fixing device for metal cutting milling machine

Technical Field

The invention relates to the technical field of clamps, in particular to a special clamping and fixing device for a metal cutting milling machine.

Background

The metal is a substance with the properties of luster, high ductility, easy electric conduction, heat conduction and the like, most metal elements on the earth exist in nature in a combined state, because the chemical properties of most metals are more active, only a few metals such as gold, silver and the like exist in a free state, the metals widely exist in nature, are very commonly applied in life, are substances which are very important and most applied in modern industry, can be subjected to various processing on the surface of the metal in the production process, and need to be fixed by using a clamping and fixing device in the processing process. At present, a clamping device on a metal cutting milling machine does not limit displacement, the workpiece is damaged due to overlarge clamping force, the surface of the workpiece with different surfaces does not have a fine adjustment function, and the clamping is inconvenient.

Patent publication No. CN211103599U discloses a clamping fixing device for metal surfacing, can be suitable for the metal material of equidimension not, drives one of them pivot and clamp splice rotation through the electromagnetic braking motor and can make metal material rotate, and then can process the different faces of metal material, has improved this clamping fixing device's practicality. However, this application does not address the technical problem relating to the definition of the displacement of the clamping device.

Disclosure of Invention

Aiming at the technical problems, the invention provides the special clamping and fixing device for the metal cutting milling machine, which can be used for quickly clamping the workpiece, limiting the displacement of the clamping component and ensuring that the workpiece cannot be damaged in the clamping process.

The technical scheme adopted by the invention is as follows: a clamping and fixing device special for a metal cutting milling machine comprises a first rack, wherein a handle is movably arranged on the first rack, and a first clamping assembly is slidably arranged on the first rack; the clamping device comprises a rack II, clamping components II are movably arranged on two sides of the rack II, a supporting plate is fixedly arranged on the rack II, and a clamping component III is arranged on the rack II in a sliding manner; fixedly connected with contact cam on the handle, handle one end is provided with the screw thread, the one end contact of contact cam and splint one, rotatory installation has lead screw two on the frame two, and lead screw two is connected with clamping component three with the screw pair, and the one end of lead screw two slides and is provided with the sleeve, and telescopic one end is provided with the spline groove, and frame two is gone up still to rotate and is provided with lead screw one, and lead screw one is gone up to be provided with the inclined plane slide with screw-thread fit, inclined plane slide and two sliding connection of frame, the one end of lead screw one is slided and is provided with a spline section of thick bamboo, and a spline section of thick bamboo has the fit relation with the spline groove on the sleeve, clamping component three is last to be provided with the elasticity plectrum that is used for stirring a spline section of thick bamboo, the activity is provided with the ejector pin on the clamping component two, and the one end and the inclined plane slide contact of ejector pin.

Furthermore, the handle is connected with the first rack through threads, a handle ratchet wheel is further arranged on the handle, and a pawl mechanism used for limiting the rotation of the handle is arranged on the first rack.

Further, the pawl mechanism comprises a pawl, the pawl is rotatably mounted on the first rack, a spring is arranged between the pawl and the first rack, a release rod is slidably mounted on the first rack, and one end of the release rod is movably connected with the pawl; the work piece is located the backup pad, rotates the handle, and the handle removes simultaneously for a contact cam is to a splint one end effect, makes a splint motion and carries out the centre gripping to the work piece, and when rotating the handle, the handle ratchet forms the contact with the pawl, and the pawl makes the handle can only carry out one-way rotation, when needs are relieved one-way restriction, drags and removes the pole, makes the pawl no longer contact with the handle ratchet.

Furthermore, the first clamping assembly comprises a first clamping plate, the first clamping plate is slidably mounted on the first rack, and a first clamping plate spring is arranged between the first clamping plate and the first rack.

Further, centre gripping subassembly two includes splint slide two, and two slidable mounting of splint slide are in frame two, and the one end slidable mounting of splint slide two has splint two, is provided with two springs of splint between splint two and the splint slide two, and the activity is provided with the connecting rod on the other end of splint slide two, and the connecting rod is rotatory to be installed in frame two, the one end of connecting rod with ejector pin swing joint, ejector pin and two sliding connection of frame are provided with the ejector pin spring between ejector pin and the frame two.

Furthermore, the third clamping assembly comprises a third clamping plate sliding seat, the third clamping plate sliding seat is slidably mounted on the second frame, the third clamping plate sliding seat is connected with the second lead screw in a screw pair mode, a third clamping plate is slidably mounted on the third clamping plate sliding seat, and a third clamping plate spring is arranged between the third clamping plate and the third clamping plate sliding seat.

Further, a sleeve spring for providing elasticity is arranged between the sleeve and one end of the screw rod, and a spline cylinder spring for providing elasticity is arranged between the spline cylinder and one end of the screw rod; the driving motor drives the screw rod II to rotate, so that the clamping plate sliding seat III moves, the clamping plate III clamps the workpiece, when the clamping plate III contacts the workpiece, under the condition that the workpiece has different appearances, under the action of the clamping plate III spring, the clamping plate III can stretch and adapt to adjustment, when the screw rod II rotates, the spline cylinder and the spline groove on the sleeve are in a fit relation, so that the spline cylinder and the screw rod I rotate together, the inclined plane sliding seat slides, the inclined plane sliding seat acts on the ejector rod, the connecting rod moves, and the clamping plate sliding seat II moves and clamps the workpiece by the clamping plate II; when the inclined plane sliding seat moves, the abutting rod moves, one end of the abutting rod moves to the sleeve and acts on the sleeve, so that the sleeve moves and is gradually separated from the spline cylinder, when the sleeve is not matched with the spline cylinder, the spline cylinder and the first lead screw do not rotate, the inclined plane sliding seat stops moving, and clamping is finished; it should be noted that, the one end and the three fixed connection of splint of elasticity plectrum, the other end of elasticity plectrum is the expansion end, when three centre gripping work pieces of splint, a spline section of thick bamboo has been crossed to the expansion end of elasticity plectrum, when three initial position were got back to splint, the elasticity plectrum was stirred a spline section of thick bamboo for a spline section of thick bamboo cooperates with the sleeve once more, spline section of thick bamboo and lead screw one at this moment follow two rotations of lead screw, when the sleeve was kept away from to the conflict pole, the sleeve got back to initial position under the sleeve spring action.

Furthermore, a driving assembly is fixedly arranged on the second rack and drives the second screw rod.

In carrying out the invention:

the work piece is located the backup pad, rotates the handle, and the handle removes simultaneously for a contact cam is to a splint one end effect, makes a splint motion and carries out the centre gripping to the work piece, and when rotating the handle, the handle ratchet forms the contact with the pawl, and the pawl makes the handle can only carry out one-way rotation, when needs are relieved one-way restriction, drags and removes the pole, makes the pawl no longer contact with the handle ratchet.

Two rotations of driving motor drive lead screw, make three movements of splint slide, splint three carry out the centre gripping to the work piece, when three contacts the work piece of splint, to under the condition that the work piece appearance is different, under the effect of three springs of splint, splint three can stretch out and draw back the adaptation adjustment, when two rotations of lead screw, the spline groove on spline section of thick bamboo and the sleeve is the cooperation relation this moment, so spline section of thick bamboo and lead screw rotate together, make the inclined plane slide, the inclined plane slide is to the ejector pin effect, make the connecting rod motion, and then make two movements of splint slide and make two pairs of work pieces of splint carry out the centre gripping.

When the inclined plane sliding seat moves, the abutting rod moves, one end of the abutting rod moves to the sleeve and acts on the sleeve, so that the sleeve moves and is gradually separated from the spline cylinder, when the sleeve is not matched with the spline cylinder, the spline cylinder and the screw rod do not rotate any more, the inclined plane sliding seat stops moving, and clamping is completed; it should be noted that, the one end and the three fixed connection of splint of elasticity plectrum, the other end of elasticity plectrum is the expansion end, when three centre gripping work pieces of splint, a spline section of thick bamboo has been crossed to the expansion end of elasticity plectrum, when three initial position were got back to splint, the elasticity plectrum was stirred a spline section of thick bamboo for a spline section of thick bamboo cooperates with the sleeve once more, spline section of thick bamboo and lead screw one at this moment follow two rotations of lead screw, when the sleeve was kept away from to the conflict pole, the sleeve got back to initial position under the sleeve spring action.

Compared with the prior art, the invention has the beneficial effects that: (1) when the third clamping plate contacts with the workpiece, under the condition of different appearances of the workpiece, the third clamping plate can be adjusted in a telescopic and adaptive manner under the action of the third clamping plate spring; (2) when the inclined plane sliding seat moves, the abutting rod moves, one end of the abutting rod moves to the sleeve and acts on the sleeve, so that the sleeve moves and is gradually separated from the spline cylinder; (3) according to the invention, the displacement of the clamping assembly is limited, so that the workpiece is prevented from being damaged in the clamping process.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is an enlarged view of a second and a third clamping assemblies according to the present invention.

Fig. 3 is a schematic view of the handle structure of the present invention.

FIG. 4 is a schematic view of a second enlarged partial structure of the screw rod of the present invention.

FIG. 5 is a partially enlarged view of the bevel slider according to the present invention.

101-a handle; 102-a first rack; 103-splint one; 104-a clamping plate spring I; 105-a contact cam; 106-handle ratchet; 107-pawl; 108-release lever; 109-threads; 110-a drive belt; 111-pulley one; 112-pulley two; 113-a drive motor; 114-rack two; 115-splint sliding seat III; 116-splint three; 117-support plate; 118-Splint trispring; 119-splint two; 120-Splint two spring; 121-a second splint sliding seat; 122-a connecting rod; 123-a bevel slider; 124-a touch bar; 125-screw rod I; 126-a top rod; 127-a ram spring; 128-screw mandrel two; 129-a sleeve spring; 130-a sleeve; 131-spline cylinder; 132-splined barrel spring; 133-elastic pick.

Detailed Description

The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.

Example (b): as shown in fig. 1, 2, 3, 4 and 5, the special clamping and fixing device for the metal cutting milling machine comprises a first frame 102, wherein a handle 101 is movably arranged on the first frame 102, a contact cam 105 is fixedly connected to the handle 101, a thread 109 is arranged at one end of the handle 101, the handle 101 is connected with the first frame 102 through the thread 109, a handle ratchet 106 is further arranged on the handle 101, and a pawl mechanism for limiting the rotation of the handle 101 is arranged on the first frame 102; the pawl mechanism comprises a pawl 107, the pawl 107 is rotatably mounted on the first rack 102, a spring is arranged between the pawl 107 and the first rack 102, a release rod 108 is slidably mounted on the first rack 102, and one end of the release rod 108 is movably connected with the pawl 107.

A first clamping assembly is arranged on the first rack 102 in a sliding mode, the first clamping assembly comprises a first clamping plate 103, the first clamping plate 103 is arranged on the first rack 102 in a sliding mode, a first clamping plate spring 104 is arranged between the first clamping plate 103 and the first rack 102, and a contact cam 105 is in contact with one end of the first clamping plate 103; the two sides of the second rack 114 are movably provided with a second clamping assembly, the second clamping assembly comprises a second clamping plate sliding seat 121, the second clamping plate sliding seat 121 is slidably mounted on the second rack 114, one end of the second clamping plate sliding seat 121 is slidably mounted with a second clamping plate 119, a second clamping plate spring 120 is arranged between the second clamping plate 119 and the second clamping plate sliding seat 121, the other end of the second clamping plate sliding seat 121 is movably provided with a connecting rod 122, the connecting rod 122 is rotatably mounted on the second rack 114, one end of the connecting rod 122 is movably connected with a push rod 126, the push rod 126 is slidably connected with the second rack 114, and a push rod spring 127 is arranged between the push rod 126 and the second rack 114.

A support plate 117 is fixedly arranged on the second rack 114, a third clamping assembly is arranged on the second rack 114 in a sliding manner and comprises a third clamping plate sliding seat 115, the third clamping plate sliding seat 115 is arranged on the second rack 114 in a sliding manner, the third clamping plate sliding seat 115 is connected with the second screw rod 128 in a screw pair manner, a third clamping plate 116 is arranged on the third clamping plate sliding seat 115 in a sliding manner, and a third clamping plate spring 118 is arranged between the third clamping plate 116 and the third clamping plate sliding seat 115; the second screw rod 128 is rotatably mounted on the second rack 114, the second screw rod 128 is connected with the third clamping assembly through a screw pair, one end of the second screw rod 128 is slidably provided with a sleeve 130, one end of the sleeve 130 is provided with a spline groove, the second rack 114 is further rotatably provided with a first screw rod 125, the first screw rod 125 is provided with an inclined plane sliding seat 123 in threaded fit, the inclined plane sliding seat 123 is slidably connected with the second rack 114, one end of the first screw rod 125 is slidably provided with a spline cylinder 131, and the spline cylinder 131 is in fit with the spline groove in the sleeve 130.

An elastic shifting sheet 133 for shifting the spline cylinder 131 is movably arranged on the third clamping assembly, a push rod 126 is movably arranged on the second clamping assembly, and one end of the push rod 126 is in contact with the inclined plane sliding seat 123; a sleeve spring 129 for providing elastic force is arranged between the sleeve 130 and one end of the second screw rod 128, and a spline cylinder spring 132 for providing elastic force is arranged between the spline cylinder 131 and one end of the first screw rod 125; the second frame 114 is fixedly provided with a driving assembly, the driving assembly drives the second screw rod 128, the driving assembly comprises a driving motor 113, a second belt wheel 112, a first belt wheel 111 and a transmission belt 110, one end of the first belt wheel 111 is fixedly connected with one end of the second screw rod 128, the driving motor 113 is fixedly installed on the second frame 114, the second belt wheel 112 is fixedly installed on an output shaft of the driving motor 113, and the second belt wheel 112 is connected with the first belt wheel 111 through the transmission belt 110.

In carrying out the invention:

the workpiece is positioned on the supporting plate 117, the handle 101 is rotated, the handle 101 moves, meanwhile, the contact cam 105 acts on one end of the first clamping plate 103, the first clamping plate 103 moves and clamps the workpiece, the handle ratchet wheel 106 is in contact with the pawl 107 while the handle 101 is rotated, the pawl 107 enables the handle 101 to rotate in one direction only, and when one-way limitation needs to be relieved, the release rod 108 is dragged, so that the pawl 107 is not in contact with the handle ratchet wheel 106 any more.

The driving motor 113 drives the second screw rod 128 to rotate, the third clamping plate sliding seat 115 moves, the third clamping plate 116 clamps the workpiece, when the third clamping plate 116 contacts the workpiece, under the condition that the appearance of the workpiece is different, under the action of the third clamping plate spring 118, the third clamping plate 116 can stretch and retract to adapt to adjustment, when the second screw rod 128 rotates, the spline grooves on the spline cylinder 131 and the sleeve 130 are in a matching relation, then the spline cylinder 131 and the first screw rod 125 rotate together, the inclined plane sliding seat 123 slides, the inclined plane sliding seat 123 acts on the ejector rod 126, the connecting rod 122 moves, and then the second clamping plate 121 moves and the second clamping plate 119 clamps the workpiece.

When the inclined plane sliding seat 123 moves, the interference rod 124 moves, one end of the interference rod 124 moves to the sleeve 130 and acts on the sleeve 130, so that the sleeve 130 moves and is gradually separated from the spline cylinder 131, when the sleeve 130 is not matched with the spline cylinder 131, the spline cylinder 131 and the first lead screw 125 do not rotate any more, the inclined plane sliding seat 123 stops moving, clamping is completed, the displacement of the clamping assembly is limited, and a workpiece can be prevented from being damaged in the clamping process; it should be noted that one end of the elastic shifting piece 133 is fixedly connected with the third clamping plate 116, the other end of the elastic shifting piece 133 is a movable end, when the third clamping plate 116 clamps a workpiece, the movable end of the elastic shifting piece 133 goes over the spline cylinder 131, when the third clamping plate 116 returns to the initial position, the elastic shifting piece 133 shifts the spline cylinder 131, so that the spline cylinder 131 is again matched with the sleeve 130, at this time, the spline cylinder 131 and the first lead screw 125 rotate along with the second lead screw 128, and when the abutting rod 124 is far away from the sleeve 130, the sleeve 130 returns to the initial position under the action of the sleeve spring 129.

The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and fall within the scope of the present invention.

Claims

1. A special clamping and fixing device for a metal cutting milling machine comprises a first rack, wherein a handle is movably arranged on the first rack, a first clamping assembly is arranged on the first rack in a sliding manner, and the first clamping assembly comprises a first clamping plate which is arranged on the first rack in a sliding manner; still include frame two, the both sides activity of frame two is provided with centre gripping subassembly two, and the fixed backup pad that is provided with on the frame two slides and is provided with centre gripping subassembly three, its characterized in that on the frame two:

the clamping assembly I is driven to rotate by the contact cam; a second screw rod is rotatably mounted on the second rack, the second screw rod is connected with a third clamping assembly through a screw pair, one end of the second screw rod is slidably provided with a sleeve, one end of the sleeve is provided with a spline groove, a first screw rod is also rotatably arranged on the second rack, an inclined surface sliding seat is arranged on the first screw rod in a threaded fit manner, a touch rod is fixedly arranged on the inclined surface sliding seat, the inclined surface sliding seat is slidably connected with the second rack, one end of the first screw rod is slidably provided with a spline cylinder, the spline cylinder is matched with the spline groove on the sleeve, an elastic shifting sheet for shifting the spline cylinder is arranged on the third clamping assembly, the second clamping assembly comprises a push rod which is slidably mounted on the second rack, and one end of the push rod is in contact with the inclined surface sliding seat; when a workpiece is clamped, the spline cylinder is matched with the spline grooves on the sleeve, the spline cylinder and the screw rod synchronously rotate through the rotation of the screw rod II, so that the inclined plane sliding seat slides, and the inclined plane sliding seat extrudes and pushes the ejector rod to drive the clamping assembly to clamp the two pairs of workpieces; when the inclined plane sliding seat moves, the sleeve is pushed and extruded through one end of the contact rod, so that the sleeve moves and is separated from the spline cylinder; when the workpiece is not clamped any more, the elastic shifting piece moves along with the clamping assembly III, and when the elastic shifting piece shifts the spline cylinder, the spline cylinder moves and is matched with the sleeve;

the clamping assembly II comprises a clamping plate sliding seat II, the clamping plate sliding seat II is slidably mounted on the rack II, a clamping plate II is slidably mounted at one end of the clamping plate sliding seat II, a clamping plate II spring is arranged between the clamping plate II and the clamping plate sliding seat II, a connecting rod is movably arranged at the other end of the clamping plate sliding seat II, the connecting rod is rotatably mounted on the rack II, one end of the connecting rod is movably connected with the ejector rod, and an ejector rod spring is arranged between the ejector rod and the rack II;

the clamping assembly III comprises a clamp plate slide seat III, the clamp plate slide seat III is slidably mounted on the frame II, the clamp plate slide seat III is connected with the screw pair II, a clamp plate III is slidably mounted on the clamp plate slide seat III, and a clamp plate III spring is arranged between the clamp plate III and the clamp plate slide seat III.

2. The special clamping and fixing device for the metal cutting milling machine according to claim 1, wherein: the handle is connected with the first rack through threads, a handle ratchet wheel is further arranged on the handle, and a pawl mechanism used for limiting the rotation of the handle is arranged on the first rack.

3. The special clamping and fixing device for the metal cutting milling machine according to claim 2, characterized in that: the pawl mechanism comprises a pawl, the pawl is rotatably mounted on the first rack, a spring is arranged between the pawl and the first rack, a release rod is slidably mounted on the first rack, and one end of the release rod is movably connected with the pawl.

4. The special clamping and fixing device for the metal cutting milling machine according to claim 1, wherein: and a first clamping plate spring is arranged between the first clamping plate and the first rack.

5. The special clamping and fixing device for the metal cutting milling machine according to claim 1, characterized in that: a sleeve spring for providing elasticity is arranged between the sleeve and one end of the second screw rod, and a spline cylinder spring for providing elasticity is arranged between the spline cylinder and one end of the first screw rod.

6. The special clamping and fixing device for the metal cutting milling machine according to claim 1, wherein: and a driving assembly is fixedly arranged on the second rack and drives the second screw rod.