A kind of clamping tool for laser cutting workpiece

Abstract

The utility model discloses a laser cutting workpiece clamping tool, comprising side brackets installed at the left and right sides of a workbench of a laser cutting machine, a front bracket installed between the front ends of the side brackets on both sides, and a rear bracket installed at the rear ends of the side brackets on both sides, a longitudinal pushing device is installed through the side brackets on both sides, a transverse pushing device is installed through the rear bracket, and also includes a controller connecting the longitudinal pushing device and the transverse pushing device; the device can realize automatic pushing, automatic clamping and automatic centering.

Description

Technical Field

[0001] The utility model relates to a clamping tool for a laser cutting workpiece. Background Art

[0002] Laser cutting of plates by laser cutting machine is a relatively fast processing method. The laser cutting machine has a workbench with a large area. Therefore, when installing the processed plates, it is extremely laborious to push the workpiece manually, and there are certain safety hazards. At the same time, when pushing manually, the centering ability of the plate is poor, which affects the cutting process.

[0003] Based on the above problems, we designed a laser cutting workpiece clamping tool that can realize automatic pushing, automatic clamping and automatic alignment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a laser cutting workpiece clamping tool which can realize automatic pushing, automatic clamping and automatic centering.

[0005] The utility model is realized by the following technical solutions:

[0006] A laser cutting workpiece clamping tool comprises side brackets installed on the left and right sides of a workbench of a laser cutting machine, a front bracket installed between the front ends of the side brackets on both sides, and a rear bracket installed at the rear ends of the side brackets on both sides, a longitudinal pushing device is installed through the side brackets on both sides, a transverse pushing device is installed through the rear bracket, and also includes a controller connecting the longitudinal pushing device and the transverse pushing device.

[0007] Preferably, the longitudinal pushing device includes a sliding rod, a screw rod and a push plate, the sliding rod and the screw rod are respectively arranged on the outer sides of the side brackets on both sides, bearings are installed on the outer sides of the side brackets, the sliding rod and the screw rod are both rotatably supported by the bearings, a servo motor is installed at one end of the screw rod, the servo motor is fixed to the side bracket, the push plate has a sliding tube that cooperates with the sliding rod, and a first threaded tube that cooperates with the screw rod, and the servo motor is connected to the controller.

[0008] Preferably, a movable plate is provided on the rear end face of the push plate, and a guide rod is provided on the plate surface of the movable plate. The guide rod passes through the push plate forward and cooperates with a limit nut. A spring is sleeved on the guide rod, and the spring acts between the movable plate and the push plate. A limit switch is installed on the end of the push plate facing the movable plate, and the limit switch is connected to the controller. When the movable plate pushes the processed plate to slide inward to the limit position, the spring is compressed as the push plate continues to move until the movable plate presses the limit switch. At this time, the limit switch controls the servo motor to stop working through the controller.

[0009] Preferably, a plurality of pulley seats are arranged on the end surface of the movable plate away from the push plate, and pulleys are matched with the pulley seats to push the workpiece being processed.

[0010] Preferably, a transverse groove is provided on the end face of the rear bracket, and the transverse pushing device includes a hood, which is fixed to the rear ends of the rear brackets on both sides, and a first screw is transversely provided in the hood, and a first bearing is cooperated between the first screw and the hood, and the first screw corresponds to the transverse groove, and the first screw has two sections of threaded parts with opposite rotation directions, and a threaded tube is cooperated through the threaded parts, and when the first screw rotates, the two threaded tubes are displaced in opposite directions, and a push plate is provided on the outer wall of the threaded tube, and the push plate fits into the transverse groove and extends forward after passing through the transverse groove. A first servo motor is installed on one side of the hood, and the output end of the first servo motor is connected to one end of the first screw; the first servo motor is connected to the controller, and when the limit switch controls the servo motor to stop through the controller, the controller controls the first servo motor to operate.

[0011] The beneficial effects of the utility model are:

[0012] Advantage 1: This device can realize automatic pushing and automatic clamping of the processed plate.

[0013] Advantage 2: This device can align the center line of the plate being processed with the center line of the workbench, making the laser cutting machine's alignment faster and improving the cutting efficiency.

[0014] Advantage three: the device automatically pushes the data, making the operation more labor-saving.

[0015] Advantage four: This device can be directly modified and upgraded for existing laser cutting machines, and the modification cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the installation of the utility model;

[0018] Figure 2 is a top view of the device;

[0019] Figure 3 This is the enlarged view of point A;

[0020] Figure 4 is the front view of the rear bracket;

[0021] Figure 5 is a top view of the first screw;

[0022] Figure 6 A three-dimensional diagram of a push plate. DETAILED DESCRIPTION

[0023] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0024] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0025] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, in the description of the present invention, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "set", "socket", "connect", "penetrate", "plug in" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1 and Figure 2A laser cutting workpiece clamping tool is shown, comprising side brackets 3 installed on the left and right sides of the workbench 2 of the laser cutting machine 1, and a front bracket 4 installed between the front ends of the side brackets 3 on both sides, and a rear bracket 5 installed at the rear end brackets of the side brackets 3 on both sides, a longitudinal pushing device 6 is installed through the side brackets 3 on both sides, a transverse pushing device 7 is installed through the rear bracket 5, and also includes a controller (not shown) connecting the longitudinal pushing device 6 and the transverse pushing device 7.

[0029] First, the longitudinal pushing device 6 is reset forward. After resetting, the plate workpiece to be laser cut is placed on the workbench 2, and then the plate workpiece is pushed backward to the limit position by the longitudinal pushing device 6, and then the plate workpiece is pushed to the center line position of the workbench 2 by the transverse pushing device 7.

[0030] Once the push is complete, processing can begin.

[0031] See also Figure 2 and Figure 3 As shown, the longitudinal pushing device 6 includes a sliding rod 61, a screw rod 62 and a pushing plate 63. The sliding rod 61 and the screw rod 62 are respectively arranged on the outer sides of the side brackets 3 on both sides. Bearings 31 are installed on the outer sides of the side brackets 3. The sliding rod 61 and the screw rod 62 are both rotatably supported by the bearings 31. A servo motor 64 is installed at one end of the screw rod 62, and the servo motor 64 is fixed to the side bracket 3. The pushing plate 63 has a sliding tube 65 that cooperates with the sliding rod 61, and a first threaded tube 66 that cooperates with the screw rod 62. The servo motor 64 is connected to the controller.

[0032] In the above technical solution, the forward and backward movement of the push plate 63 is controlled by the forward and reverse rotation of the servo motor 64 to complete the automatic pushing of the processed plate.

[0033] See also Figure 2 and Figure 3 As shown, a movable plate 611 is provided on the rear end face of the push plate 63, and a guide rod 612 is provided on the plate surface of the movable plate 611. The guide rod 612 penetrates the push plate 63 forward and cooperates with a limit nut 613. A spring 614 is sleeved on the guide rod 612. The spring 614 acts between the movable plate 611 and the push plate 63. A limit switch 615 is installed on the end of the push plate 63 facing the movable plate 611. The limit switch 615 is connected to the controller. When the movable plate 611 pushes the processed plate to slide inward to the limit position, as the push plate 63 continues to move, the spring 614 is compressed until the movable plate 611 presses the limit switch 615. At this time, the limit switch 615 controls the servo motor 64 to stop working through the controller.

[0034] In the above technical solution, after the plate is pushed to slide backward to the limit position, automatic stopping can be achieved by compressing the spring 614 and pressing the limit switch 615, eliminating the need for manual stopping and making the operation more convenient.

[0035] When the movable plate presses the limit switch 615 , the spring 614 still has a compression margin.

[0036] See also Figure 3 As shown, a plurality of pulley seats 661 are provided on the end surface of the movable plate 611 away from the push plate 63 , and a pulley 662 is matched with the pulley seat 661 , and the workpiece being processed is pushed by the pulley 662 .

[0037] The above technical solution is mainly to reduce the resistance of the plate workpiece during lateral displacement.

[0038] See also Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a transverse groove 51 is arranged on the end surface of the rear bracket 5, and the height of the transverse groove 51 is slightly higher than the height of the workbench 2. When the processed plate is pushed backward, it can be avoided to be pushed into the transverse groove 51. The transverse pushing device 7 includes a machine cover 71, and the machine cover 71 is fixed to the rear ends of the rear brackets 5 on both sides. A first screw rod 72 is transversely arranged in the machine cover 71, and a first bearing (not shown) is matched between the first screw rod 72 and the machine cover 71. The first screw rod 72 corresponds to the transverse groove 51. The first screw rod 72 has two sections of threaded parts 73 with opposite rotation directions, and a threaded tube 74 is matched through the threaded part 73. When the first screw rod 72 rotates The two threaded tubes 74 are displaced in opposite directions, and a push plate 75 is provided on the outer wall of the threaded tube 74. The push plate 75 fits the transverse groove 51 and extends forward after passing through the transverse groove 51. The bottom of the end of the push plate 75 that passes through the transverse groove 51 protrudes downward to the table surface close to the workbench 2 to ensure that the push plate 75 can smoothly contact the processed plate workpiece. A first servo motor 76 is installed on one side of the hood 71, and the output end of the first servo motor 76 is connected to one end of the first screw rod 72; the first servo motor 76 is connected to the controller, and when the limit switch controls the servo motor to stop through the controller, the controller controls the first servo motor to operate.

[0039] In the above technical solution, the two push plates 75 are displaced toward the center line of the workbench 2, so that the plate that has been pushed back is aligned toward the middle position of the workbench, which facilitates the processing operation.

[0040] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A laser cutting workpiece clamping tool, characterized in that: It includes side brackets installed on the left and right sides of the workbench of the laser cutting machine, a front bracket installed between the front ends of the side brackets on both sides, and a rear bracket installed at the rear ends of the side brackets on both sides. A longitudinal pushing device is installed through the side brackets on both sides, and a transverse pushing device is installed through the rear bracket. It also includes a controller connecting the longitudinal pushing device and the transverse pushing device.

2. The laser cutting workpiece clamping tool according to claim 1 is characterized in that: The longitudinal pushing device includes a sliding rod, a screw rod and a pushing plate. The sliding rod and the screw rod are respectively arranged on the outer sides of the side brackets on both sides. Bearings are installed on the outer sides of the side brackets. The sliding rod and the screw rod are both rotatably supported by the bearings. A servo motor is installed at one end of the screw rod, and the servo motor is fixed to the side bracket. The pushing plate has a sliding tube that cooperates with the sliding rod, and a first threaded tube that cooperates with the screw rod. The servo motor is connected to the controller.

3. The laser cutting workpiece clamping tool according to claim 2, characterized in that: A movable plate is arranged on the rear end face of the push plate, and a guide rod is arranged on the plate surface of the movable plate. The guide rod passes through the push plate forward and cooperates with a limit nut. A spring is sleeved on the guide rod, and the spring acts between the movable plate and the push plate. A limit switch is installed on the end of the push plate facing the movable plate, and the limit switch is connected to the controller.

4. The laser cutting workpiece clamping tool according to claim 3 is characterized in that: A plurality of pulley seats are arranged on the end surface of the movable plate away from the push plate, and pulleys are matched through the pulley seats.

5. The laser cutting workpiece clamping tool according to claim 4 is characterized in that: A transverse groove is arranged on the end surface of the rear bracket, and the transverse pushing device includes a hood, which is fixed to the rear ends of the rear brackets on both sides. A first screw is arranged transversely in the hood, and a first bearing is matched between the first screw and the hood. The first screw corresponds to the transverse groove, and the first screw has two threaded parts with opposite rotation directions, and a threaded tube is matched through the threaded part. When the first screw rotates, the two threaded tubes are displaced in opposite directions. A push plate is arranged on the outer wall of the threaded tube, and the push plate fits into the transverse groove and extends forward after passing through the transverse groove. A first servo motor is installed on one side of the hood, and the output end of the first servo motor is connected to one end of the first screw; the first servo motor is connected to the controller.

Images