WO2022217565A1

WO2022217565A1 - Double-clamping device for fine welding of chains and double-head inclined nail welding machine

Info

Publication number: WO2022217565A1
Application number: PCT/CN2021/087668
Authority: WO
Inventors: 徐征; 葛银灿; 汪伟丰
Original assignee: 德清集通实业有限公司
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-10-20

Abstract

A double-clamping device for fine welding of chains and a double-head inclined stud welding machine. The double-clamping device for fine welding of chains comprises: a conveying track provided on a machine base and used for conveying chains; clamping mounts disposed on two sides of the conveying track, the clamping mounts being mounted on the machine base; hinged link levers provided on the clamping mounts; clamping parts provided on the hinged link levers, the clamping parts being used for clamping chains under the drive of the hinged link levers; and drive mechanisms for driving the hinged link levers to rotate on the clamping mounts by means of connecting portions. The double-clamping device is suitable for an automatic chain stud welding machine, can clamp conveyed chains to facilitate welding, and can achieve both firm clamping and accurate position, thereby ensuring chain welding effect and realizing fast and accurate stud feeding, thus improving production efficiency.

Description

Double clamping device and double head inclined nail welding machine for tough chains

technical field

The invention relates to the technical field of chain equipment, in particular to a double-clamping device and a double-head inclined nail welding machine used for a delicate chain.

Background technique

Anti-skid chains are car safety products specially designed for driving safety. The special rough surface of anti-skid chains is used to increase the friction with the road surface. Usually in snow and muddy road conditions, it can protect tires and prevent The tire slips to ensure the normal driving of the vehicle, especially on the snowy road in winter, which can effectively ensure the smooth driving and safe driving of the vehicle. The existing large automobile snow chains generally use welding to weld the cleats to the chain. At this time, the chain needs to be clamped to prevent the chain from loosening and affecting the welding effect. The Chinese invention patent with the patent number of CN201110136523.5 and the application date of 2011-08-31 discloses an automatic welding device for anchor chain rungs. It includes active guide wheel, passive guide wheel, transfer table, bracket, clamping mechanism, welding robot. The active guide wheel and the passive guide wheel are respectively located at the two ends of the transmission table. The active guide wheel drives the anchor chain to move on the transmission table. The transmission table is provided with an opening at a certain distance for the robot welding work position. Each welding station has a welding clamping mechanism, the clamping machine 3 and the clamping mechanism are composed of a clamping mechanism support, a clamping body and a clamping driver, and the clamping body has a fixed clamping head and a sliding clamping The head is formed, and the sliding clamping head can slide on the clamping body along the track, the base of the clamping driver is fixed on the fixed clamping part, the movable sliding rod of the clamping driver is connected with the sliding clamping head, and the clamping driver is The clamping and releasing actions are completed alternately under the driving of the jig, but it takes up a lot of space and the clamping force is not enough.

SUMMARY OF THE INVENTION

The technical purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a double clamping device and a double-head inclined nail welding machine for chains, which solves the problems in the prior art and is suitable for automatic chain The welding nail machine can clamp the sent chain to facilitate welding, with good clamping firmness, accurate position, and small footprint, which ensures the welding effect of the chain.

The above-mentioned technical purpose of the present invention is achieved through the following technical solutions: a double-clamping device for a chain, including:

The conveying guide rail on the machine base is used to convey the chain;

Clamping mounts arranged on both sides of the conveying guide rail, the clamping mounts are mounted on the machine base;

an articulated link provided on the clamping mount;

a clamping part provided on the hinged link, the clamping part is used to clamp the chain under the drive of the hinged link;

The drive mechanism drives the hinged link to rotate on the clamping mounting seat through the connecting portion.

As a further preferred technical solution of the present invention, the connecting portion includes a connecting arm fixedly connected with the hinge link and an end shaft provided at the end of the connecting arm for hinged connection with the driving mechanism.

As a further preferred technical solution of the present invention, the connecting portion includes a gear fixedly connected with the hinge link and a rack meshed with the gear, and the rack is fixedly connected with the driving mechanism.

As a further preferred technical solution of the present invention, the clamping portion includes a fixed mounting plate fixedly connected with the hinge link and a clamping head fixed on the fixed mounting plate.

As a further preferred technical solution of the present invention, the driving mechanism includes an air cylinder or an oil cylinder or a linear motor.

Double head inclined welding nail machine, including double head inclined welding nail device, vibrating hopper, drag chain mechanism for dragging the chain; also including double clamping device for clamping the chain and connecting with the vibrating hopper Nail device.

As a further preferred technical solution of the present invention, the nail-up device includes a nail-up support, a material storage mechanism provided on the nail-up support, a discharge mechanism, a material receiving mechanism cooperating with the material storage mechanism, and all The sliding block connected by the material receiving mechanism and the conveying mechanism for driving the sliding block to slide.

As a further preferred technical solution of the present invention, the material storage mechanism includes a material storage block fixed on the upper nail bracket, a material receiving hole provided on the material storage block, and a material communicating with the material receiving hole. Nail channel.

As a further preferred technical solution of the present invention, the discharge mechanism includes a discharge installation bracket, a discharge cylinder fixed on the discharge support, and a side connected to the material nail channel on the storage block. The lateral passage and the discharging head connected with the discharging cylinder are arranged in the lateral passage.

As a further preferred technical solution of the present invention, the material receiving mechanism includes a material receiving block fixedly connected with the sliding block, a material receiving hole provided on the material receiving block, and a bottom communicating hole communicating with the material receiving hole Air holes; the bottom surface of the welding head is provided with a welding adsorption hole and a through hole communicating with the welding adsorption hole.

As a further preferred technical solution of the present invention, the conveying mechanism includes a vertical mounting plate, and a conveying cylinder fixed on the vertical mounting plate and connected to the sliding block.

To sum up, the present invention has the following beneficial effects:

The invention is suitable for the automatic chain nail welding machine, which can clamp the sent chain to facilitate welding, has good clamping firmness and accurate position, ensures the welding effect of the chain, and has fast nailing speed and accurate position. Improved production efficiency.

Description of drawings

Fig. 1 is the schematic diagram of the double clamping device of the present invention on the nail welding machine;

2 is a schematic structural diagram of Embodiment 1 of the double clamping device of the present invention;

3 is a schematic structural diagram of the inner side plate in Embodiment 1 of the double clamping device of the present invention;

4 is a schematic structural diagram of the outer side plate in Embodiment 1 of the double clamping device of the present invention;

5 is a schematic diagram of the connection between the fixed mounting plate and the clamping head in Embodiment 1 of the double clamping device of the present invention;

6 is another structural schematic diagram of the clamping card plate in Embodiment 1 of the double clamping device of the present invention;

Fig. 7 is the outline drawing of the double-head inclined nail welding machine of the present invention;

Fig. 8 is the structure diagram of the double-head inclined nail welding machine of the present invention;

9 is a schematic structural diagram of the nailing device of the present invention;

Fig. 10 is the structural representation of the material storage block in the present invention;

Figure 11 is a schematic structural diagram of a receiving block in the present invention;

12 is a schematic structural diagram of an upper block in the present invention;

Figure 13 is a schematic three-dimensional structure diagram of the nailing device in the present invention;

Figure 14 is a schematic structural diagram of the drag chain mechanism in the present invention;

Fig. 15 is the structural schematic diagram of the drag chain pin in the present invention;

Fig. 16 is the structural representation of the ball plunger sleeve in the present invention;

17 is a schematic structural diagram of Embodiment 2 of the double clamping device of the present invention;

Detailed ways

The present invention will be further described below with reference to the accompanying drawings.

Embodiment 1: As shown in Fig. 1-16, a double clamping device used for the chain's delicate and tough, including the base 1, the conveying guide rail 7 arranged on the machine base 1, for the chain to be conveyed;

Clamping mounts 2 arranged on both sides of the conveying guide rail 7, the clamping mounts 2 are mounted on the machine base 1;

The hinged connecting rod 3 arranged on the clamping mount 2;

a clamping part 4 arranged on the hinged link 3, the clamping part 4 is used to clamp the chain under the drive of the hinged link 3;

The drive mechanism 6 drives the hinged link 4 to rotate on the clamping mounting base 2 through the connecting portion 5 .

The applicant found that, in the existing welding, manual operation is used, and welding is performed after aligning the welding stud and the chain. This method is not only not accurate enough, but also has certain potential safety hazards. Therefore, the application The technical solution of the present application has been developed by the inventors to perform automatic clamping, which is suitable for double-headed nail welding machines. A conveying track is set on the machine base 1, and the clamping mounts are arranged along both sides of the conveying track on the machine base 1. It is used to clamp the chain, wherein the two clamping mounts are preferably screwed and fixed on the machine base, the machine base is provided with a hinge hole, the hinge link is hinged in it, and the ends protrude, and the clamping The parts are fixedly connected, and the driving mechanism drives the hinged connecting rod to rotate through the connecting rod part, and then drives the clamping head to realize the clamping of the chain. The driving mechanism is used as a power source to provide the force required for clamping. The driving mechanism 6 includes an air cylinder or an oil cylinder or a linear motor, preferably an air cylinder, because the presence of a powerful arm can achieve a larger clamping force with a smaller action. force.

In this embodiment, the link portion 5 includes a connecting arm 501 fixedly connected with the hinge link 3 and an end shaft 502 provided at the end of the connecting arm 501 for hinged connection with the driving mechanism 6 , The connecting arm acts as a lever and can rotate with a relatively small force under the driving of the driving mechanism, thereby achieving a better clamping effect.

In this embodiment, the clamping portion 4 includes a fixed mounting plate 401 fixedly connected to the hinge link 3 and a clamping head 402 fixed on the fixed mounting plate 401 , the fixed mounting plate and the hinge link The connection is fixed, and the clamping head is used to clamp the chain to prevent it from loosening and affecting the welding effect of the welding stud.

Further, the fixed mounting plate 401 includes an outer plate 4011 sleeved on the hinged link 3, and the outer plate 4011 is fixed on the inner plate 4012, and the installation holes 4013 provided on the inner measuring plate 4012, The deformation groove 4014 communicated with the installation hole 4013 and the clamping plates 4015 located on both sides of the deformation groove 4014 and screwed to fix the hinge link 3 in the installation hole 4013; the clamping head 402 It is fixed on the outer plate 4011, the outer plate is set on the hinge link through the set, and the inner plate is fixedly connected to the outer plate through screws, located on the inner side of the outer plate, the deformation groove is connected with the installation hole, and penetrates through the inner plate. The surface of the measuring plate has a long slot, so that two clamping plates are formed on both sides of the plate. After the two clamping plates are fixed and connected by screws, the deformation groove is deformed, which in turn deforms the mounting hole and connects the hinged connection. One of the advantages of rod clamping is that it is easy to install, and more importantly, it is easy to adjust the position of the clamping head. The angle of the clamping head can be adjusted according to actual needs to adapt to better clamping chains.

The function of the clamping head is to clamp the chain. In this embodiment, the clamping head 402 includes a clamping connecting plate 4021 and a clamping card plate 4022 connected to the clamping connecting plate 4021. The clamping plate 4022 is a rectangular plate, and the rectangular plate and the clamping connecting plate 4021 form a right-angle opening space, and the right-angle opening space is used to clamp the chain and clamp the clamping plate.

Further, see Fig. 6; in order to achieve a better clamping effect, the clamping head can also adopt such a structure, the clamping card plate 4022 is "Y"-shaped, that is, the clamping card plate includes a long clamping plate and a In the short clamping plate, the length of the long clamping plate is greater than the length of the short clamping plate, and the two form a clamping space, and the clamping effect is relatively good.

Double head inclined welding nail machine, including double head inclined welding nail device 9, vibrating hopper 10, drag chain mechanism 11 for dragging the chain; also including double clamping device for clamping the chain and the vibration Hopper connected nailing device 8.

The nail-up device includes a nail-up bracket 81 , a material storage mechanism 82 provided on the upper nail bracket 81 , a material discharge mechanism 83 , a material receiving mechanism 84 cooperating with the material storage mechanism 82 , and the material receiving mechanism 84 The connected sliding block 85 , the conveying mechanism 86 for driving the sliding block 85 to slide, and the guiding mechanism 87 matched with the sliding block 85 . The applicant found that the existing nailing method is manual nailing, which is not only inaccurate in position, low in welding efficiency, but also has potential safety hazards. For this reason, the applicant has developed the technical solution of the present application. The nailing bracket is connected to the machine base, The storage mechanism is connected with the vibrating hopper to receive and store the welding studs conveyed from the vibrating hopper. , The guiding mechanism cooperates to send the welding studs to be welded to the welding position, with fast speed, good safety performance and accurate position.

In this embodiment, the material storage mechanism 82 includes a material storage block 8201 fixed on the upper nail bracket 81 , a material receiving hole 8202 provided on the material storage block 8201 , and the material receiving hole 8202 The material nail channel 8203 in communication, the material receiving hole is preferably a circular structure, the material nail channel and the material receiving hole are connected, the material nail channel is a circular hole, and the welding nails entering from the material receiving hole enter the material receiving hole, and the material is stored. The block and the upper nail bracket 81 are fixed in a known manner such as screwing or welding to achieve a fixed connection, and the material receiving hole can be communicated with the vibrating hopper through the material channel.

In this embodiment, the discharging mechanism 83 includes a discharging mounting bracket 8301, a discharging cylinder 8302 fixed on the discharging bracket 301, a discharging cylinder 8302 arranged on the discharging block 8201 and the discharging nail channel 8203 The communicating side channel 8303 and the discharging head 8304 arranged in the side channel 8303 and connected to the discharging cylinder 8302, the discharging mounting bracket and the storage block are fixedly connected, and are on the side wall of the storage block. , then there is a lateral channel that communicates with the material nail channel, so that the feeding head can pass through. The feeding head is driven by the feeding cylinder and is located in the material nail channel in the initial position, which can disassemble the upper material nail channel. The rest of the welding studs are blocked, and when the material needs to be discharged, it leaves the feeding nail channel driven by the feeding cylinder, so that the welding nails in the feeding nail channel descend, enter the feeding mechanism, and are transported away to It is welded with the chain, and then the discharge head enters the material nail channel to block the remaining welding nails. The structure of the discharge head can adopt the structure of this embodiment, including the connection head connected to the discharge cylinder and the blocking head. They are all cylindrical. The advantage of this is that there is no need to set up a mechanism to prevent the rotation of the discharge head, and the installation is convenient. Of course, the connecting head and the blocking head can also be rectangular or polygonal structures. At this time, the side channel needs to be The shape of the connecting head is changed from a circular shape to a structure corresponding to the shape of the connecting head to prevent its rotation from affecting the discharge. At the same time, the end of the blocking head is rounded.

In this embodiment, the material receiving mechanism 84 includes a material receiving block 8401 fixedly connected with the sliding block 85 , a material receiving hole 8402 provided on the material receiving block 8401 and communicating with the material receiving hole 8402 The bottom vent hole 8403. The material receiving hole is connected with the material nail channel through the pipeline 88. The material receiving mechanism is located below the discharging mechanism to facilitate the material receiving and the discharging mechanism. Under the action of negative pressure, this not only facilitates the entry of welding studs, but also facilitates the fixing of welding studs in the material receiving hole, which is beneficial to transportation and welding. In order to ensure that there is no empty feeding of welding studs, we have set up A sensor to sense whether a welding stud is located in the receiving hole; further, in order to better convey the welding stud and facilitate welding, an upper block 8404 is fixed above the receiving block, and the upper block is provided with a through hole , and communicates with the material nail channel. At the same time, there is an opening 8405 at the lower end of the upper block, and an arc guide 8406 is arranged on the side wall of the opening. The radius of the arc guide is equal to the radius of the material receiving hole, which can be guided , in this way, when the welding stud is located in the material receiving hole, it is partially leaked, which is convenient for subsequent process operations; the upper block and the material receiving block are in contact rather than fixedly connected together. In this embodiment, in order to facilitate adjustment, the upper The block is connected to the plate on the upper nail bracket, and is screwed by a single screw, which can easily adjust the angle.

In this embodiment, the conveying mechanism is used for conveying welding studs, and the conveying mechanism 86 includes a vertical mounting plate 8601, a conveying cylinder 8602 fixed on the vertical mounting plate 8601 and connected to the sliding block 85, The conveying cylinder is fixedly connected to the vertical mounting plate, and the piston rod of the conveying cylinder is connected with the sliding block 85. When the conveying mechanism is conveying, it is guided by the guiding mechanism to ensure the stability of conveying.

In this embodiment, the guide mechanism 87 includes a sliding guide 8701 fixedly connected to the sliding block 85 and a sliding slot 8702 provided on the vertical mounting plate 8601 and matched with the sliding guide 8701. The card slot is arranged on the vertical mounting plate 8601, the sliding block and the sliding guide rail are integrally formed or assembled separately, and the sliding card slot is a "T"-shaped groove or a dovetail groove. Of course, a side plate can also be arranged on the vertical mounting plate, and the sliding card slot can also be arranged on the side plate. The slot structure is used to realize the function of guide pair. In this embodiment, the slider slot is arranged laterally, which can improve the utilization rate of space.

The drag chain mechanism 11 includes drag chain guide rails 1101, a stepping motor mounting frame 1102, a stepping motor 1103 arranged on the stepping motor mounting frame 1102, and a stepping motor 1103 provided on the stepping motor mounting frame 1102 by the The stepping motor sliding block 1104 driven by the stepping motor 1103, the intermediate fixing block 1105 fixedly connected with the stepping motor sliding block 1104, and the end rotating block 1106 hinged with the intermediate fixing block 1105 are fixed on the end The drag chain pin 1107 and the linear driving part 1108 on the rotating block 1106, the two ends of the linear driving part 1108 are hinged with the end rotating block 1106 and the stepping motor sliding block 1104 respectively; the stepping motor mounting frame is fixed on the welding On the installation table of the nailing machine, the stepping motor is connected with the screw rod through the coupling, the nut on the screw rod is connected with the sliding block of the stepping motor, the sliding block of the stepping motor slides on the mounting frame of the stepping motor, and the linear driving part adopts the cylinder , the stepper motor drives the stepper motor slide block to slide through the screw rod, thereby making the drag chain pin 1107 move, and the linear drive part drives the end rotating block to rotate, thereby realizing the drag chain pin pulling out and inserting into the chain.

Further, because the drag chain pin 1107 is often inserted, pulled and dragged with the connecting rod, it is very easy to be damaged, which affects the working efficiency of the entire equipment. Therefore, in this embodiment, the drag chain pin includes the installation section 11071, The force-bearing section 11072 connected to the installation section 11071 and the tapered guide section 11073 connected to the force-bearing section 11072 are sleeved with a wear-resistant ring 11074 on the force-bearing section 11072, and the force-bearing section 11072 is provided with a wear-resistant ring 11074. There are multiple rows of radial holes 11075, and the number of radial holes in each row is 6. Ball plunger sleeves 11076 are provided in the radial holes for transition fit. In the radial hole, steel balls 11077 are arranged in the ball head plunger sleeve, and the inside is filled with grease. The end of the ball head plunger sleeve is provided with a sealing plug 11078, and the connecting column at the end of the sealing plug is provided with a seal After the assembly is completed, the steel ball is in contact with the inner surface of the wear-resistant ring. At the same time, there is an external thread under the installation section, and a limit sleeve 11079 is screwed on the external thread to limit the axial position of the wear-resistant sleeve. There is a gap of 0.1-0.2mm between the limit sleeve and the wear-resistant sleeve, so that when in contact with the chain, first of all, the wear-resistant sleeve can be rotated, which can prevent a certain position from constantly contacting the chain. The contact of the ball makes it possible to perform a small amount of axial movement. Moreover, because of the action of grease, the contact between the steel ball and the wear sleeve can be lubricated, and the contact between the steel ball and the wear sleeve is not rigid. In this way, the service life of the whole drag chain pin is improved, and the working efficiency of the whole equipment is improved.

Example 2, see FIG. 17, in this embodiment, the connecting part 5 includes a gear 503 fixedly connected with the hinge link 3 and a rack 504 meshing with the gear 503, the rack (504) ) and the drive mechanism 6 are fixedly connected, and the structure of the gear and rack matching can also be used to realize the swing of the hinged link, and the rest are the same as in Embodiment 1.

In addition, the connecting part and the driving mechanism 6 can also adopt an integrated gear motor structure to drive the hinged link to swing.

Claims

Double clamping device for tough chains, characterized by:

The conveying guide rail (7) arranged on the machine base (1) is used for conveying the chain;

Clamping mounts (2) provided on both sides of the conveying guide rail (7), the clamping mounts (2) are mounted on the machine base (1);

a hinged connecting rod (3) arranged on the clamping mounting seat (2);

a clamping part (4) provided on the hinged link (3), the clamping part (4) is used to clamp the chain under the drive of the hinged link (3);

The drive mechanism (6) drives the hinged link (4) to rotate on the clamping mounting seat (2) through the connecting portion (5).
The double-clamping device for a lean chain according to claim 1, characterized in that: the connecting part (5) comprises a connecting arm (501) fixedly connected with the hinge link (3), and a connecting arm (501) provided at the The end of the connecting arm (501) is used to hinge with the end shaft (502) of the driving mechanism (6).
The double-clamping device for a lean chain according to claim 1, characterized in that: the connecting part (5) comprises a gear (503) fixedly connected with the hinge link (3) and a gear (503) fixedly connected with the gear (503) a meshing rack (504), the rack (504) and the driving mechanism (6) are fixedly connected.
The double-clamping device for a lean chain according to claim 1, 2 or 3, characterized in that: the clamping part (4) comprises a fixed mounting plate (4) fixedly connected with the hinge link (3). 401) and a clamping head (402) fixed on the fixed mounting plate (401).
The double-clamping device for a lean chain according to claim 1, 2 or 3, characterized in that: the driving mechanism (6) comprises an air cylinder or an oil cylinder or a linear motor. The double-head inclined nail welding machine includes a double-head inclined welding nail device, a vibrating hopper, and a drag chain mechanism for dragging the chain; it is characterized in that it also includes the double clamping device according to any one of claims 1-5. and a nailing device (8) connected with the vibrating hopper.
The double-head inclined nail welding machine according to claim 5, characterized in that: the nailing device (8) comprises a nailing support (81) and a material storage mechanism (81) provided on the nailing support (81). 82), a feeding mechanism (83), a feeding mechanism (84) cooperating with the feeding mechanism (82), a sliding block (85) connected with the feeding mechanism (84), and a sliding block (85) for driving the feeding mechanism (84) The conveying mechanism (86) in which the sliding block (85) slides.
The double-head inclined nail welding machine according to claim 6, wherein the material storage mechanism (82) comprises a material storage block (8201) fixed on the upper nail bracket (81), The material receiving hole (8202) on the material storage block (8201) and the material nail channel (8203) communicated with the material receiving hole (8202).
The double-head inclined nail welding machine according to claim 6, wherein the discharging mechanism (83) comprises a discharging mounting bracket (8301) and a discharging cylinder fixed on the discharging bracket (8301). (8302), a side channel (8303) provided on the material storage block (8201) and communicated with the material nail channel (8203), and a side channel (8303) provided in the side channel (8303) and the discharging cylinder (8302) connected discharge head (8304).
The double-head inclined nail welding machine according to claim 6, characterized in that: the material receiving mechanism (84) comprises a material receiving block (8401) fixedly connected with the sliding block (85), A material receiving hole (8402) on the material block (8401) and a bottom ventilation hole (8403) communicated with the material receiving hole (8402); the bottom surface of the welding head (4) is provided with a welding adsorption hole (401) and A through hole (402) communicated with the welding adsorption hole (401).
The double-head inclined nail welding machine according to claim 6, characterized in that: the conveying mechanism (86) comprises a vertical mounting plate (8601), fixed on the vertical mounting plate (8601) and the sliding Transfer cylinder (8602) to which block (85) is attached.