CNC automatic clamping device

Abstract

According to the CNC automatic clamping device, a sliding assembly, a first air cylinder, a clamping arm, a plurality of clamping jaws, a clamping jaw installation base, a nut, a first elastic piece, a second elastic piece, a pressing block and a feeding assembly are arranged in a matched mode, one end of a workpiece to be machined is inserted into the bottoms of the clamping jaws, and the first air cylinder is started to drive the clamping arm to move in the direction away from a supporting plate; at the moment, the first elastic piece enables the end, close to the workpiece, of the clamping jaw to press the workpiece in the deformation recovery process, then an external cutter is adopted for cutting the workpiece, the whole clamping process is automatically completed, the clamping efficiency is improved, and meanwhile the risk that operators are injured is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a CNC automatic clamping device. Background Art

[0002] In the CNC machining process, the clamping of the workpiece is crucial. Traditional clamps are mostly manually operated, requiring operators to manually adjust the clamping size according to the size and shape of the workpiece. After the adjustment is completed, the workpiece is placed in the clamp and clamped before processing, resulting in low efficiency in the processing of the workpiece. In addition, manual operation also has safety hazards and is prone to cause injuries to operators. Utility Model Content

[0003] Based on this, it is necessary to provide a CNC automatic clamping device, which can realize automatic and safe clamping of workpieces.

[0004] A CNC automatic clamping device, comprising a clamp base, a sliding assembly, a clamping assembly, and a feeding assembly;

[0005] The sliding assembly and the feeding assembly are respectively installed at two ends of the clamp base, and the clamping assembly is installed on the sliding assembly, and the sliding assembly drives the clamping assembly to approach or move away from the feeding assembly;

[0006] The clamping assembly includes a support seat, two first cylinders, a clamping arm, a plurality of clamping jaws, a clamping jaw mounting seat, a nut, a first elastic member, a second elastic member, and a pressure block. The support seat is mounted on the sliding assembly, the two first cylinders are axially symmetrically arranged at the two ends of the support seat and are located on one side of the support seat, the clamping jaw mounting seat is installed on the other side of the support seat, one end of the clamping jaw is accommodated in the clamping jaw mounting seat, and the other end is fixedly connected to one end of the first elastic member, the other end of the first elastic member is fixedly connected to the support seat, the two ends of the clamping arm are respectively fixedly mounted on the telescopic rods of the two first cylinders, the second elastic member is penetrated through the clamping arm and the two ends are respectively fixedly connected to the nut and the pressure block, so that the pressure block abuts against one end of the clamping jaw close to the first elastic member.

[0007] In one embodiment, the sliding assembly includes a second cylinder, two slide rails, and two sliders. The two slide rails are axially symmetrically arranged on the clamp base, and the two sliders are slidably arranged on the two slide rails. The two ends of the support seat are respectively fixedly installed on the two sliders. The second cylinder is fixedly installed on the clamp base and the telescopic rod is fixedly connected to the support seat.

[0008] In one embodiment, the loading assembly includes a support frame, a third cylinder and a pushing block, the support frame has a pushing block accommodating hole, the third cylinder is fixedly mounted on the support frame, the pushing block is fixedly mounted on the telescopic rod of the third cylinder and is driven by the third cylinder to move in the pushing block accommodating hole in a vertical direction.

[0009] In one of the embodiments, the CNC automatic clamping device further includes a material receiving box, which is installed on the clamp base and is located between the clamping assembly and the feeding assembly.

[0010] In one of the embodiments, the CNC automatic clamping device further includes a plurality of air blow pipes, which are installed at the bottom of the plurality of clamps and are used to blow the cut workpieces into a material receiving box.

[0011] In one embodiment, the number and positions of the air blowing tubes are matched with the number of positions of the clamping jaws.

[0012] In one embodiment, the bottom of the clamp has a notch for accommodating the air blowing tube.

[0013] In one embodiment, the nut and the first elastic member are matched in number and position.

[0014] The above-mentioned CNC automatic clamping device, through the coordinated arrangement of the sliding assembly, the first cylinder, the clamping arm, a plurality of clamping jaws, the clamping jaw mounting seat, the nut, the first elastic member, the second elastic member, the pressure block, and the feeding assembly, inserts one end of the processed workpiece into the bottom of the clamping jaw, starts the first cylinder to drive the clamping arm to move away from the support plate, at this time, the first elastic member causes the clamping jaw to approach one end of the workpiece and press the workpiece in the process of recovering the deformation, and then uses an external cutter to cut the workpiece, and the entire clamping process is automatically completed, which improves the clamping efficiency and also avoids the risk of injury to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the assembly structure of a CNC automatic clamping device according to an embodiment of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of one side structure of a clamping assembly of a CNC automatic clamping device according to an embodiment of the utility model;

[0017] Figure 3 for Figure 1 A schematic structural diagram of the other side of the clamping assembly of a CNC automatic clamping device according to an embodiment of the utility model;

[0018] Figure 4 for Figure 1A schematic diagram of the assembly structure of the clamping jaws, nuts, first elastic member, second elastic member and pressing block of a CNC automatic clamping device according to an embodiment of the utility model;

[0019] Figure 5 for Figure 1 A schematic diagram of the assembly structure of a sliding assembly of a CNC automatic clamping device according to an embodiment of the utility model;

[0020] Figure 6 for Figure 1 A schematic diagram of the assembly structure of a feeding assembly of a CNC automatic clamping device according to an embodiment of the utility model;

[0021] Figure 7 for Figure 1 A schematic structural diagram of an air blowing pipe of a CNC automatic clamping device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is said to be "directly" connected to another element, there is no intermediate element.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] like Figure 1 As shown, a CNC automatic clamping device includes a clamp base 1, a sliding assembly 2, a clamping assembly 3, and a feeding assembly 4;

[0026] The sliding component 2 and the loading component 4 are respectively installed at two ends of the clamp base 1, and the clamping component 3 is installed on the sliding component 2, and the sliding component 2 drives the clamping component 3 to approach or move away from the loading component 4;

[0027] like Figure 2 , Figure 3 , Figure 4 As shown, the clamping assembly 3 includes a support seat 31, two first cylinders 32, a clamping arm 33, a plurality of clamping claws 34, a clamping claw mounting seat 35, a nut 36, a first elastic member 37, a second elastic member 38, and a pressure block 39. The support seat 31 is installed on the sliding assembly 2. The two first cylinders 32 are axially symmetrically arranged at the two ends of the support seat 31 and are located on one side of the support seat 31. The clamping claw mounting seat 35 is installed on the other side of the support seat 31. One end of the clamping claw 34 is accommodated in the clamping claw mounting seat 35, and the other end is fixedly connected to one end of the first elastic member 37. The other end of the first elastic member 37 is fixedly connected to the support seat 31. The two ends of the clamping arm 33 are respectively fixedly installed on the telescopic rods of the two first cylinders 32. The second elastic member 38 is penetrated on the clamping arm 33 and the two ends are respectively fixedly connected to the nut 36 and the pressure block 39, so that the pressure block 39 abuts against one end of the clamping claw 34 close to the first elastic member 37.

[0028] The loading assembly 4 is used to place the workpiece to be processed. The first elastic member 37 and the second elastic member 38 can be springs. The number and position of the nut 36 and the first elastic member 37 are adapted, and the first elastic member 37 is in a compressed state due to the extrusion of the pressure block 39. When the workpiece needs to be clamped, the workpiece to be processed is first placed on the loading assembly 4, and the sliding assembly 2 is started to push the clamping assembly 3 to move toward the loading assembly 4, so that the part of the workpiece to be processed that needs to be cut is placed in the gap between the clamping jaw mounting seat 35 and the head 342 of the clamping jaw 34, and the two first cylinders 32 are started to push the clamping arm 33 to move away from the support seat 31. At this time, the pressure block 39 and the tail 343 of the clamping jaw 34 are gradually separated, and the first elastic member 37 restores the deformation to push the tail 343 of the clamping jaw 34 to lift up, so that the head 342 of the clamping jaw 34 is pressed down, and the clamping band is processed under the joint force of the head 342 of the clamping jaw 34 and the clamping jaw mounting seat 35. The part of the workpiece to be cut is clamped, and then the external cutting is used to complete the cutting of the workpiece.

[0029] It can be understood that the two ends of the second elastic member 38 are fixedly connected to the nut 36 and the pressing block 39 respectively, and can play a certain elastic buffering role.

[0030] In this way, the CNC automatic clamping device, through the coordinated arrangement of the sliding component 2, the first cylinder 32, the clamping arm 33, a plurality of clamping jaws 34, the clamping jaw mounting seat 35, the nut 36, the first elastic member 37, the second elastic member 38, the pressure block 39, and the feeding component 4, inserts one end of the workpiece to be processed into the bottom of the clamping jaw 34, starts the first cylinder 32 to drive the clamping arm 33 to move away from the support plate, and at this time, the first elastic member 37 makes the clamping jaw 34 close to one end of the workpiece to press the workpiece in the process of restoring the deformation, and then uses an external cutter to cut the workpiece, and the entire clamping process is automatically completed, which improves the clamping efficiency and avoids the risk of injury to the operator.

[0031] like Figure 5 As shown, in one embodiment, the sliding assembly 2 includes a second cylinder 21, two slide rails 22, and two sliders 23. The two slide rails 22 are axially symmetrically arranged on the clamp base 1. The two sliders 23 are slidably arranged on the two slide rails 22. The two ends of the support seat 31 are respectively fixedly installed on the two sliders 23. The second cylinder 21 is fixedly installed on the clamp base 1 and the telescopic rod is fixedly connected to the support seat 31.

[0032] When the sliding assembly 2 needs to be started, the second cylinder 21 is started. The second cylinder 21 controls the telescopic rod to extend and retract, pulling the support seat 31 to slide on the slide rail 22 through the slider 23, driving the clamping assembly 3 to approach or move away from the loading assembly 4, and can quickly and automatically complete the loading of the workpiece to be processed.

[0033] like Figure 6 As shown, in one embodiment, the loading assembly 4 includes a support frame 41, a third cylinder 42 and a pushing block 43, the support frame 41 has a pushing block accommodating hole 411, the third cylinder 42 is fixedly installed on the support frame 41, the pushing block 43 is fixedly installed on the telescopic rod of the third cylinder 42 and is driven by the third cylinder 42 to move in the pushing block accommodating hole 411 in a vertical direction.

[0034] In this way, when loading the workpiece, the workpiece to be processed can be placed on the support frame 41 first, and it is determined whether the height of the workpiece and the gap between the clamping jaw mounting seat 35 and the head 342 of the clamping jaw 34 are on the same horizontal plane. If the height of the workpiece is lower than the height of the gap between the clamping jaw mounting seat 35 and the head 342 of the clamping jaw 34, the third cylinder 42 is started, and the third cylinder 42 pushes the workpiece to be processed in the direction away from the support frame 41 through the push block 43, so that the workpiece and the gap between the clamping jaw mounting seat 35 and the head 342 of the clamping jaw 34 are on the same horizontal plane, so that when the clamping assembly 3 is close, the part of the workpiece to be cut is inserted into the gap between the clamping jaw mounting seat 35 and the head 342 of the clamping jaw 34. Through the coordinated arrangement of the third cylinder 42 and the push block 43, the placement height of the workpiece can be effectively controlled, making the application range of the device wider.

[0035] Furthermore, the pushing block 43 is a magnet, and when the workpiece is made of an iron material, the workpiece can be adsorbed to prevent it from falling off during the movement or processing of the workpiece.

[0036] In one embodiment, the CNC automatic clamping device also includes a material receiving box 5, which is installed on the clamp base 1 and is located between the clamping assembly 3 and the feeding assembly 4; the CNC automatic clamping device also includes a plurality of air blow pipes 6, which are installed at the bottom of the plurality of clamps 34 and are used to blow the cut products into the material receiving box 5; the number and position of the air blow pipes 6 are adapted to the number of positions of the clamps 34.

[0037] like Figure 7 As shown, the air blowing pipe 6 includes a main pipe 61 and a branch pipe 62, the main pipe is used to connect with an external air pump, and the branch pipe 62 is respectively installed at the bottom of the clamping jaw 34, and the receiving box 5 is used to receive the cut workpiece. When the external cutter cuts the workpiece, after the cutting is completed, the cut part is usually slightly connected to the original workpiece as a whole. At this time, the air pump is started, and the air blown into the air pump enters from the main pipe 61 and blows out from the branch pipe 62, respectively, blowing the cut part of the workpiece off from the whole workpiece, so that the cut workpiece falls into the receiving box 5, and the whole process is automatically completed.

[0038] In one embodiment, the bottom of the clamping jaw 34 has a notch 341 for accommodating the blowing tube 6 .

[0039] Thus, in order to facilitate the placement of the branch pipe 62 of the air blowing pipe 6, a notch 341 is provided at the bottom of the clamping jaw 34, so that the installation position of the branch pipe 62 is more accurate, and the blowing off of the workpiece is also convenient.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A CNC automatic clamping device, characterized in that: It includes a fixture base, a sliding assembly, a clamping assembly, and a feeding assembly; The sliding assembly and the feeding assembly are respectively installed at two ends of the clamp base, and the clamping assembly is installed on the sliding assembly, and the sliding assembly drives the clamping assembly to approach or move away from the feeding assembly; The clamping assembly includes a support seat, two first cylinders, a clamping arm, a plurality of clamping jaws, a clamping jaw mounting seat, a nut, a first elastic member, a second elastic member, and a pressure block. The support seat is mounted on the sliding assembly, the two first cylinders are axially symmetrically arranged at the two ends of the support seat and are located on one side of the support seat, the clamping jaw mounting seat is installed on the other side of the support seat, one end of the clamping jaw is accommodated in the clamping jaw mounting seat, and the other end is fixedly connected to one end of the first elastic member, the other end of the first elastic member is fixedly connected to the support seat, the two ends of the clamping arm are respectively fixedly mounted on the telescopic rods of the two first cylinders, the second elastic member is penetrated through the clamping arm and the two ends are respectively fixedly connected to the nut and the pressure block, so that the pressure block abuts against one end of the clamping jaw close to the first elastic member.

2. A CNC automatic clamping device according to claim 1, characterized in that: The sliding assembly includes a second cylinder, two slide rails, and two sliders. The two slide rails are axially symmetrically arranged on the clamp base. The two sliders are slidably arranged on the two slide rails. The two ends of the support seat are respectively fixedly installed on the two sliders. The second cylinder is fixedly installed on the clamp base and the telescopic rod is fixedly connected to the support seat.

3. A CNC automatic clamping device according to claim 1, characterized in that: The loading assembly includes a support frame, a third cylinder and a pushing block. The support frame is provided with a pushing block accommodating hole. The third cylinder is fixedly mounted on the support frame. The pushing block is fixedly mounted on the telescopic rod of the third cylinder and is driven by the third cylinder to move in the pushing block accommodating hole in a vertical direction.

4. A CNC automatic clamping device according to claim 1, characterized in that: The CNC automatic clamping device also includes a material receiving box, which is installed on the clamp base and is located between the clamping assembly and the feeding assembly.

5. The CNC automatic clamping device according to claim 1, characterized in that: The CNC automatic clamping device also includes a plurality of air blowing pipes, which are installed at the bottom of the plurality of clamping jaws and are used to blow the cut workpieces into the material receiving box.

6. A CNC automatic clamping device according to claim 5, characterized in that: The number and positions of the air blowing tubes are adapted to the number of positions of the clamping jaws.

7. A CNC automatic clamping device according to claim 6, characterized in that: The bottom of the clamping jaw is provided with a notch for accommodating the air blowing tube.

8. The CNC automatic clamping device according to claim 1, characterized in that: The nuts and the first elastic member are matched in number and position.

Images