Double-row pneumatic clamp

Abstract

The double-row pneumatic clamp comprises clamping arms, equal-height cushion blocks, a connecting plate, an opening and closing driving unit and an electromagnetic valve set, the two clamping arms are arranged at the bottoms of the two ends of the connecting plate in a sliding mode, each clamping arm comprises an installation rod and a plurality of sets of clamping jaw assemblies, and the equal-height cushion blocks are arranged between one clamping arm and the connecting plate; the opening and closing driving unit is connected with the two clamping arms and stretches out and draws back to drive the two clamping arms to be close to or away from each other. The equal-height cushion blocks are additionally arranged, so that the two clamping arms are arranged in a height difference mode, the bottoms of the two rows of clamped wire reels form a certain angle, and therefore the device is matched with a feeding port of a special welding wire machine. The opening and closing driving unit is used for opening and closing the two clamping arms; the connecting plate is mainly used for fixing the clamp and external host equipment. According to the double-row pneumatic clamp, one-time discharging can be effectively achieved after two rows of wire reels are grabbed, and the carrying rhythm efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding wire production equipment technical field, concretely relates to a double row pneumatic clamp. BACKGROUND

[0002] In the welding wire automatic production line, the plastic welding wire disc needs to be carried from a large storage area to a single welding wire production machine. The current method is to use a clamping clamp (for example, a welding wire disc clamping clamp disclosed in application No. 202020668521.5) to grab one row of welding wire discs at a time, or to grab two rows of welding wire discs and then transfer them to the welding wire production machine. However, due to the compact layout of the welding wire machine and the inclined arrangement of the feeding port, the two rows of grabbed welding wire discs cannot be placed in the welding wire machine at the same time, and can only be placed in the welding wire production machine one row at a time, resulting in low carrying efficiency.

[0003] Therefore, there is a need for an improved technical solution to solve the above technical problems. SUMMARY

[0004] The utility model aims at providing a double row pneumatic clamp to solve the problem of not being able to place the two rows of grabbed welding wire discs at once in the above background, thereby improving the efficiency of the carrying rhythm.

[0005] To achieve the above-mentioned purpose, the utility model provides a double row pneumatic clamp, which comprises a clamping arm, an equal-height pad, a connecting plate, an opening and closing driving unit and an electromagnetic valve group. The number of clamping arms is two, and the two clamping arms are parallel to each other and slidingly installed at the bottom of both ends of the connecting plate. The clamping arm comprises an installation rod and a plurality of groups of clamping jaw assemblies arranged on the installation rod. The clamping jaw assembly comprises a clamping jaw cylinder, which is arranged at the bottom of the installation rod through a cylinder connecting plate and a fixed plate. The bottom of the clamping jaw cylinder is connected with two clamping jaws. The equal-height pad is arranged between one of the clamping arms and the connecting plate. The opening and closing driving unit is fixedly arranged at the bottom of the connecting plate and connected with the two clamping arms respectively. The electromagnetic valve group comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve. The first electromagnetic valve and the second electromagnetic valve are connected with the clamping jaw assemblies in the two clamping arms respectively. The third electromagnetic valve is connected with the opening and closing driving unit. The third electromagnetic valve is used to control the opening and closing driving unit to drive the two clamping arms to move closer to or away from each other.

[0006] Further, the two clamping arms are arranged with a height difference, and the clamping jaw assemblies in the two clamping arms are arranged in a staggered manner along the length direction of the installation rod.

[0007] Further, the height difference between the two clamping arms is determined by the height of the equal-height pad, and the height of the equal-height pad is 45-60 cm.

[0008] Further, the opening and closing driving unit is a double-end cylinder, one end of the double-end cylinder is provided with a first piston rod, the other end of the double-end cylinder is provided with a second piston rod, and the first piston rod and the second piston rod are fixedly connected with the two clamping arms respectively.

[0009] Further, the bottom of the connecting plate is provided with a linear guide rail, the top of the equal-height cushion block and the top of the other clamping arm are respectively provided with a guide rail sliding seat matched with the linear guide rail, and sliding grooves are arranged on the guide rail sliding seats.

[0010] Further, the two sides of the transverse section of the linear guide rail are respectively provided with guide grooves, and the two sides of the transverse section of the sliding groove are respectively provided with guide protrusions matched with the guide grooves.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model discloses a double-row pneumatic clamp, including clamping arm, equal-height cushion block, connecting plate, opening and closing driving unit and solenoid valve group, single clamping arm can arrange multiple sets of jaw assemblies according to actual demand, and multiple jaw assemblies on every clamping arm are controlled by same solenoid valve to guarantee the synchronism of clamping action, and the length of mounting rod can change according to the number of jaw assemblies, the jaw assemblies in two clamping arms are arranged in the length direction of mounting rod by dislocation, and two rows of welding wire discs are overlapped each other when folding, so that interference is avoided, and the equal-height cushion block is added to make two clamping arms be arranged in height difference, and then make the bottom of two rows of welding wire discs be at a certain angle, so as to be adapted to the feeding port of welding wire special machine, and the opening and closing driving unit is used for the opening and closing of two clamping arms, and the connecting plate is mainly used for fixing the clamp and external host equipment.

[0013] In addition to the objects, features, and advantages described above, the utility model has other objects, features and advantages. The utility model will be further described in detail below with reference to the drawings. DRAWINGS

[0014] The drawings constituting a part of this application are used to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0015] Fig. 1 It is a three-dimensional structure schematic view of an angle of the double-row pneumatic clamp in the utility model;

[0016] Fig. 2is another angle of the double-row pneumatic clamp of the utility model three-dimensional structure schematic view;

[0017] Fig. 3 is the left view structure schematic view of the double-row pneumatic clamp of the utility model;

[0018] Fig. 4 is the front view structure schematic view of the double-row pneumatic clamp of the utility model;

[0019] Wherein, 1 - clamping arm;1.1 - mounting rod;1.2 - clamping jaw assembly;1.2a - clamping jaw cylinder;1.2b - cylinder connecting plate;1.2c - fixed plate;1.2d - clamping jaw;2 - equal height pad;3 - connecting plate;4 - opening and closing drive unit;5 - electromagnetic valve group;6 - linear guide rail;6.1 - guide groove;7 - guide rail slide;7.1 - sliding groove;7.1a - guide lug. Specific embodiments

[0020] The specific embodiments of the utility model are described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0021] Please see Figs. 1 to 4 The embodiment provides a double-row pneumatic clamp, including clamping arm 1, equal height pad 2, connecting plate 3, opening and closing drive unit 4 and electromagnetic valve group 5, and specific structure is as follows:

[0022] The number of clamping arms 1 is two, the two clamping arms 1 are parallel to each other and are slidingly installed at the bottom of both ends of the connecting plate 3, the clamping arm 1 comprises an installation rod 1.1 and a plurality of groups of clamping jaw assemblies 1.2, the installation rod is mainly used to install the clamping jaw assembly, and the length thereof can be changed according to the number of clamping jaw assemblies; the number of clamping jaw assemblies on a single clamping arm can be arranged according to actual needs; the plurality of groups of clamping jaw assemblies 1.2 are arranged at intervals on the installation rod 1.1. The clamping jaw assembly 1.2 comprises a clamping jaw cylinder 1.2a, the clamping jaw cylinder 1.2a is arranged at the bottom of the installation rod 1.1 through a cylinder connecting plate 1.2b and a fixing plate 1.2c, the bottom of the clamping jaw cylinder 1.2a is connected with two clamping jaws 1.2d, which are used to clamp the wire reel; a rubber block is arranged on the inner plane of each clamping jaw 1.2d. An equal-height pad 2 is fixedly arranged between one of the clamping arms 1 and the connecting plate 3; an opening and closing driving unit 4 is fixedly arranged at the bottom of the connecting plate 3, the opening and closing driving unit 4 is a double-headed cylinder, one end of the double-headed cylinder is provided with a first piston rod, the other end of the double-headed cylinder is provided with a second piston rod, and the first piston rod and the second piston rod are fixedly connected with the two clamping arms 1 respectively (it needs to be explained that for the clamping arm provided with the equal-height pad 2, the first piston rod is fixedly connected with the equal-height pad 2 on the clamping arm); an electromagnetic valve group 5 comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, the first electromagnetic valve and the second electromagnetic valve are connected with the clamping jaw assemblies 1.2 in the two clamping arms 1 respectively, a plurality of clamping jaw assemblies in each row are controlled by one electromagnetic valve, so as to ensure the synchronism of the clamping action; the third electromagnetic valve is connected with the opening and closing driving unit 4, and is used to control the opening and closing driving unit 4 to stretch and retract, so as to drive the two clamping arms 1 to move close to or away from each other. In the structure, in addition to the double-headed cylinder, the opening and closing driving unit 4 can also adopt an electric structure, and the same purpose of the application can also be achieved.

[0023] In a specific embodiment, the two clamping arms 1 are arranged with a height difference, and the clamping jaw assemblies 1.2 in the two clamping arms 1 are arranged in a staggered manner along the length direction of the installation rod 1.1. Specifically, the height difference between the two clamping arms 1 is determined by the height of the equal-height pad 2, and the height of the equal-height pad 2 is 45-60 cm. In the structure, the clamping jaw assemblies in the two clamping arms are arranged in a staggered manner along the length direction of the installation rod, which facilitates the two rows of wire reels clamped to be staggered with each other when being folded, so as to avoid interference; the equal-height pad is additionally arranged between one of the clamping arms and the connecting plate, so that the two clamping arms are arranged with a height difference, and then the bottom of the two rows of wire reels clamped forms a certain angle, so as to be adapted to the inlet of the wire special machine; and then the 2 rows of wire reels clamped can be discharged once, so as to improve the efficiency of the conveying rhythm.

[0024] In a specific embodiment, the bottom of the connecting plate 3 is provided with a linear guide rail 6 for guiding the telescopic movement; the top of the equal-height cushion block 2 and the top of the other clamping arm 1 are respectively provided with a guide rail sliding seat 7 matched with the linear guide rail 6, and the guide rail sliding seat 7 is provided with a sliding groove 7.1. Preferably, the linear guide rail 6 is provided with a guide groove 6.1 on both sides of the transverse section, and the sliding groove 7.1 is provided with a guide block 7.1a matched with the guide groove on both sides of the transverse section.

[0025] When the double-row pneumatic clamp takes materials from the large storage area (for example, a plastic welding wire coil), the clamping jaws 1.2d of the clamping jaw assembly 1.2 are opened, the opening and closing driving unit 4 is extended to make the two rows of clamping jaws 1.2d in an open state; under the driving of an external host (usually a truss manipulator or a multi-axis manipulator), the two rows of clamping jaws successively clamp the welding wire coil to reach the inlet of the welding wire special machine, ensuring that the side provided with the equal-height cushion block 2 is in front, the opening and closing driving unit 4 is retracted to make the clamped welding wire coil just contact the inclined surface of the inlet after being closed, and at the same time, the first electromagnetic valve and the second electromagnetic valve are opened, so that the two rows of clamping jaws are opened, thereby completing the unloading.

[0026] The preferred embodiments of the utility model are described above, but the utility model is not limited to the above, and various modifications and changes can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A dual-row pneumatic clamp, characterized in that, The system includes a clamping arm (1), a leveling block (2), a connecting plate (3), an opening and closing drive unit (4), and a solenoid valve assembly (5). There are two clamping arms (1), which are parallel to each other and slidably mounted on the bottom ends of the connecting plate (3). Each clamping arm (1) includes a mounting rod (1.1) and several sets of gripper assemblies (1.2) spaced apart on the mounting rod (1.1). Each gripper assembly (1.2) includes a gripper cylinder (1.2a), which is mounted on the bottom of the mounting rod (1.1) via a cylinder connecting plate (1.2b) and a fixing plate (1.2c). The bottom of the gripper cylinder (1.2a) is connected to... There are two grippers (1.2d); the equal height pad (2) is disposed between one of the gripping arms (1) and the connecting plate (3); the opening and closing drive unit (4) is fixedly disposed at the bottom of the connecting plate (3) and is respectively connected to the two gripping arms (1); the solenoid valve group (5) includes a first solenoid valve, a second solenoid valve and a third solenoid valve, the first solenoid valve and the second solenoid valve are respectively connected to the gripper assembly (1.2) in the two gripping arms (1), the third solenoid valve is connected to the opening and closing drive unit (4), and the third solenoid valve is used to control the opening and closing drive unit (4) to extend and retract to drive the two gripping arms (1) to move closer or further away from each other.

2. The dual-row pneumatic clamp according to claim 1, characterized in that, The two clamping arms (1) are arranged with a height difference, and the gripper assemblies (1.2) in the two clamping arms (1) are staggered along the length direction of the mounting rod (1.1).

3. A dual-row pneumatic clamp according to claim 2, characterized in that, The height difference between the two clamping arms (1) is determined by the height of the equal-height pad (2), which is 45-60cm high.

4. A dual-row pneumatic clamp according to claim 1, characterized in that, The opening and closing drive unit (4) is a double-headed cylinder. One end of the double-headed cylinder is provided with a first piston rod, and the other end of the double-headed cylinder is provided with a second piston rod. The first piston rod and the second piston rod are respectively fixedly connected to the two clamping arms (1).

5. A dual-row pneumatic clamp according to claim 1, characterized in that, The bottom of the connecting plate (3) is provided with a linear guide rail (6); the top of the equal height pad (2) and the top of the other clamping arm (1) are respectively provided with guide rail slides (7) that cooperate with the linear guide rail (6), and the guide rail slides (7) are provided with sliding grooves (7.1).

6. A dual-row pneumatic clamp according to claim 5, characterized in that, The linear guide (6) has guide grooves (6.1) on both sides of its transverse cross section, and the sliding groove (7.1) has guide protrusions (7.1a) on both sides of its transverse cross section that are adapted to the guide grooves.

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