Built-in automatic replacement assembly for CNC machining center

Abstract

The utility model provides a built-in automatic replacement assembly for a CNC machining center, and belongs to the technical field of machines. The problem of poor stability in the prior art is solved. The built-in automatic replacement assembly for the CNC machining center comprises a clamping mechanism and a built-in tray of a workpiece, the built-in tray of the workpiece is fixedly connected to the upper portion of a clamp, the clamping mechanism is connected to a rack and can clamp a cutter on the built-in tray of the workpiece, and the clamping mechanism can convey the clamped cutter to the clamp. The built-in automatic replacement assembly for the CNC machining center is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to an in-machine automatic replacement component for a CNC machining center. Background Art

[0002] CNC (Computer Numerical Control) machining center is a highly automated multifunctional processing equipment that integrates computer control, precision machining and automation technology, and can perform efficient and high-precision cutting on a variety of materials such as metal, plastic, and wood.

[0003] CNC machining centers play a core role in modern manufacturing, especially in the mass production of precision parts and the processing of complex three-dimensional parts.

[0004] In order to meet the above requirements, the CNC machining center has a variety of tools, and you can choose the corresponding tool according to the actual processing situation.

[0005] In existing industrial production, tool replacement is mainly done manually, which is labor-intensive and has low tool-changing efficiency.

[0006] In order to solve the above problems, people have designed a robot with a high degree of automation, in which the tool replacement is completely operated by the robot. However, the cost of a fully automated robot is too high. Summary of the Invention

[0007] The purpose of the utility model is to solve the above problems in the prior art and provide an automatic in-machine replacement component for a CNC machining center that can improve operating efficiency and has high stability.

[0008] The purpose of this utility model can be achieved through the following technical solutions:

[0009] A tool changing assembly for a CNC machining center, the CNC machining center including a frame, the frame being connected to a fixture, characterized in that the tool changing assembly includes a clamping mechanism and an in-machine tray for a workpiece, the in-machine tray for the workpiece being fixedly connected to the upper portion of the fixture, the clamping mechanism being connected to the frame and capable of clamping the tool at the in-machine tray of the workpiece, and the clamping mechanism being capable of transporting the clamped tool to the fixture.

[0010] In the above-mentioned in-machine automatic replacement assembly for a CNC machining center, the frame is provided with a movable spindle, and the above-mentioned clamping mechanism is connected to the spindle.

[0011] In the above-mentioned automatic in-machine replacement component for CNC machining centers, the clamping mechanism includes a connecting seat, a driving member, claw one and claw two. The upper part of the connecting seat is fixedly connected to the main shaft, the driving member is fixedly connected to the side of the connecting seat, and the claw one and claw two are both connected to the driving member. The driving member can drive claw one and claw two to move closer or farther away from each other.

[0012] In the above-mentioned automatic in-machine replacement component for CNC machining centers, the driving part is a finger cylinder, the inner end of the above-mentioned claw one and the inner end of the above-mentioned claw two are both connected to the finger cylinder, and a clamping part for clamping the tool is formed between the outer end of the above-mentioned claw one and the outer end of the above-mentioned claw two.

[0013] In the above-mentioned automatic in-machine replacement component for the CNC machining center, the connecting seat includes plate body one and plate body two, the above-mentioned plate body one is arranged horizontally, the outer end of the above-mentioned plate body one is fixedly connected to the main shaft, the above-mentioned plate body two is arranged vertically and the upper end of the above-mentioned plate body two is fixedly connected to the inner end of the above-mentioned plate body one, the above-mentioned driving member is fixedly connected to the side of the above-mentioned plate body two, and the connection between the above-mentioned plate body one and the plate body two has reinforcing ribs.

[0014] In the above-mentioned in-machine automatic replacement component for a CNC machining center, the outer side of one outer end of the clamping jaw has a smoothly transitioned introduction portion, and the inner side of one outer end of the clamping jaw has a concave clamping recess.

[0015] In the above-mentioned in-machine automatic replacement component for CNC machining center, the in-machine tray of the workpiece includes a long plate-shaped base plate with a protruding stop edge and a tool head seat, and a gap for the claw to be embedded between the stop edge and the tool head seat.

[0016] In the above-mentioned in-machine automatic replacement assembly for a CNC machining center, the retaining edge and the tool head seat are an integrated structure with the base plate, and the retaining edge is arranged parallel to the tool head seat.

[0017] In the above-mentioned in-machine automatic replacement assembly for a CNC machining center, the tool head seat has a plurality of recessed positioning notches along its length.

[0018] In the above-mentioned in-machine automatic replacement assembly for a CNC machining center, the above-mentioned retaining edge and the tool head seat form a storage unit. There are several storage units, and the storage units are evenly distributed along the width direction of the substrate.

[0019] Compared with the existing technology, the in-machine automatic replacement component for CNC machining centers has an in-machine tray for storing workpieces for cutting tools fixedly connected to the upper part of the fixture. Therefore, the in-machine tray for workpieces does not take up too much space and is also convenient for the clamping mechanism to enter and clamp the cutting tools.

[0020] After the clamped tool is sent into the fixture, the corresponding tool can be quickly replaced at the fixture. Once the tool is clamped in the fixture, cutting operations can be performed. It has relatively high stability and the tool replacement is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the automatic replacement component in the CNC machining center.

[0022] Figure 2 This is a three-dimensional structural diagram of a clamping mechanism used in automatic in-machine component replacement in a CNC machining center.

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of a tool tray in an automatic in-machine changing assembly for a CNC machining center.

[0024] In the figure, 1, frame; 2, fixture; 3, main shaft; 4, connecting seat; 4a, plate body 1; 4b, plate body 2; 4c, reinforcing rib; 5, driving member; 6, claw 1; 6a, guide part; 6b, clamping recess; 7, claw 2; 8, base plate; 8a, stop edge; 8b, tool head seat; 8b1, positioning recess. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] like Figure 1As shown, the CNC machining center includes a frame 1, and a clamp 2 is connected to the frame 1.

[0029] like Figure 1 and Figure 2 and Figure 3 As shown, the in-machine automatic replacement component for the CNC machining center includes a clamping mechanism and an in-machine pallet for the workpiece. The in-machine pallet for the workpiece is fixedly connected to the upper part of the fixture. The clamping mechanism is connected to the frame 1 and the clamping mechanism can clamp the tool at the in-machine pallet of the workpiece. The clamping mechanism can transport the clamped tool to the fixture.

[0030] This tool changing assembly creatively connects the workpiece's in-machine pallet to the upper part of the fixture 2, which effectively reduces the space occupied by the workpiece's in-machine pallet. The fixture also provides sufficient space for the workpiece's in-machine pallet to be connected, so its structure is relatively compact.

[0031] The frame 1 is provided with a movable main shaft 3 , and the clamping mechanism is connected to the main shaft 3 .

[0032] After the spindle 3 moves, it can drive the clamping mechanism to move stably between the in-machine tray of the workpiece and the fixture 2.

[0033] The clamping mechanism includes a connecting seat 4, a driving member 5, a clamping claw 1 6 and a clamping claw 2 7. The upper part of the connecting seat 4 is fixedly connected to the main shaft, the driving member 5 is fixedly connected to the side of the connecting seat, the clamping claw 1 6 and the clamping claw 2 7 are both connected to the driving member 5, and the driving member 5 can drive the clamping claw 1 6 and the clamping claw 2 7 to move closer to or away from each other.

[0034] After the driving member 5 is actuated, it can drive the clamping claw 1 6 and the clamping claw 2 7 to move toward or away from each other, thereby clamping or releasing the tool.

[0035] The driving member 5 is a finger cylinder, the inner ends of the above-mentioned claw 1 6 and the inner ends of the above-mentioned claw 2 7 are both connected to the finger cylinder, and a clamping part for clamping the tool is formed between the outer ends of the above-mentioned claw 1 6 and the outer ends of the above-mentioned claw 2 7.

[0036] The finger cylinder can stably drive the clamping claw 1 6 and the clamping claw 2 7 to move relative to each other.

[0037] The connecting seat includes plate body 1 4a and plate body 2 4b. The plate body 1 4a is horizontally arranged, and the outer end of the plate body 1 4a is fixedly connected to the main shaft 3. The plate body 2 4b is vertically arranged and the upper end of the plate body 2 4b is fixedly connected to the inner end of the plate body 1 4a. The driving member 5 is fixedly connected to the side of the plate body 2 4b. The connection between the plate body 1 4a and the plate body 2 4b is provided with a reinforcing rib 4c.

[0038] Such a structure can keep the driving member 5 as far away from the main shaft 3 as possible, and the driving member 5 will not be affected by the main shaft 3 during operation, thereby improving its stability.

[0039] The driving member 5 is located at the side of the plate 2 4b away from the plate 1 4a.

[0040] The outer side of the outer end of the clamping claw 6 is provided with a smoothly transitioned introduction portion 6a, and the inner side of the outer end of the clamping claw 6 is provided with a concave clamping recess 6b.

[0041] The outer side of the outer end of the second clamping jaw 7 also has a smoothly transitioned introduction portion, and the inner side of the outer end of the second clamping jaw also has a concave clamping notch. And the clamping notch of the first clamping jaw is directly opposite to the clamping notch of the second clamping jaw.

[0042] When the clamping jaw 1 6 and the clamping jaw 2 7 are brought closer to each other, both sides of the tool are positioned between the two clamping recesses 6b. Such a structure can stably clamp the tool at the clamping portion.

[0043] The in-machine tray of the workpiece includes a long plate-shaped base plate 8, on which a protruding stop edge 8a and a tool head seat 8b are provided. A gap is provided between the stop edge 8a and the tool head seat 8b for the clamping claws to be embedded.

[0044] The retaining edge 8a and the cutter head seat 8b are an integral structure with the base plate, and the retaining edge 8a and the cutter head seat 8b are arranged in parallel.

[0045] The cutter head seat 8b has a plurality of recessed positioning notches 8b1 along its length.

[0046] Each positioning recess 8b1 on the cutter head seat 8b can position a tool, and the tool portion extends out of the cutter head seat 8b, and the extended tool rests on the retaining edge 8a. Such a structure can not only stably position the tool on the cutter head seat 8b, but also has sufficient clearance between the cutter head seat 8b and the retaining edge 8a for the clamping mechanism to be embedded, thereby ensuring that the clamping mechanism can stably clamp the tool.

[0047] The retaining edge 8 a and the tool head seat 8 b form a storage unit. There are a plurality of storage units, and the plurality of storage units are evenly distributed along the width direction of the base plate 8 .

[0048] The provision of multiple storage units enables more tools to be stored on the workpiece's in-machine pallet.

[0049] In the initial state, jaw 1 and jaw 2 are far away from each other. After the main shaft drives the clamping mechanism to move to the inner tray of the workpiece, the driving member makes jaw 1 and jaw 2 move closer to each other.

[0050] During this process, the guide portion on the first clamping jaw and the guide portion on the second clamping jaw can stably embed the first clamping jaw and the second clamping jaw in the gap between the cutter head seat and the retaining edge. At the same time, the tool is tightly pressed between the clamping recess of the first clamping jaw and the clamping recess of the second clamping jaw.

[0051] It can be seen that the clamping mechanism can not only be smoothly embedded in the workpiece's inner tray, but also stably clamp the tool.

[0052] After the spindle drives the clamping mechanism to move to the fixture, the fixture positions and connects the tool, and then the clamping mechanism is released. After release, the clamping mechanism returns to its initial position, facilitating the next tool change operation.

[0053] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments fall within the scope of protection claimed by the present invention.

Claims

1. An automatic in-machine replacement component for a CNC machining center, the CNC machining center comprising a frame (1), a fixture (2) connected to the frame (1), characterized in that: The in-machine automatic replacement component for a CNC machining center comprises a clamping mechanism and an in-machine tray for a workpiece, wherein the in-machine tray for the workpiece is fixedly connected to the upper portion of a fixture (2), the clamping mechanism is connected to a machine frame (1), and the clamping mechanism can clamp a tool at the in-machine tray for the workpiece, and the clamping mechanism can transport the clamped tool to the fixture (2).

2. The automatic in-machine replacement assembly for a CNC machining center according to claim 1, characterized in that: The frame (1) is provided with a movable main shaft (3), and the clamping mechanism is connected to the main shaft (3).

3. The automatic in-machine replacement assembly for a CNC machining center according to claim 2, characterized in that: The clamping mechanism includes a connecting seat (4), a driving member (5), a clamping claw 1 (6) and a clamping claw 2 (7). The upper portion of the connecting seat (4) is fixedly connected to the main shaft (3), the driving member (5) is fixedly connected to the side of the connecting seat (4), the clamping claw 1 (6) and the clamping claw 2 (7) are both connected to the driving member (5), and the driving member (5) can drive the clamping claw 1 (6) and the clamping claw 2 (7) to move toward or away from each other.

4. The automatic in-machine replacement assembly for a CNC machining center according to claim 3, characterized in that: The driving member (5) is a finger cylinder, the inner end of the clamping claw (6) and the inner end of the clamping claw (7) are both connected to the finger cylinder, and a clamping portion for clamping a tool is formed between the outer end of the clamping claw (6) and the outer end of the clamping claw (7).

5. The automatic in-machine replacement assembly for a CNC machining center according to claim 4, characterized in that: The connecting seat (4) includes a plate body 1 (4a) and a plate body 2 (4b), wherein the plate body 1 (4a) is arranged horizontally, and the outer end of the plate body 1 (4a) is fixedly connected to the main shaft (3), and the plate body 2 (4b) is arranged vertically and the upper end of the plate body 2 (4b) is fixedly connected to the inner end of the plate body 1 (4a), and the driving member (5) is fixedly connected to the side of the plate body 2 (4b), and the connection between the plate body 1 (4a) and the plate body 2 (4b) has a reinforcing rib (4c).

6. The automatic in-machine replacement assembly for a CNC machining center according to claim 5, characterized in that: The outer side of the outer end of the clamping claw 1 (6) is provided with a smoothly transitioned introduction portion (6a), and the inner side of the outer end of the clamping claw 1 (6) is provided with a concave clamping notch (6b).

7. The automatic in-machine replacement assembly for a CNC machining center according to claim 6, characterized in that: The workpiece in-machine tray comprises a long plate-shaped base plate (8), the base plate (8) having a protruding stop edge (8a) and a tool head seat (8b), and a gap for the claw to be embedded between the stop edge (8a) and the tool head seat (8b).

8. The automatic in-machine replacement assembly for a CNC machining center according to claim 7, characterized in that: The retaining edge (8a) and the cutter head seat (8b) are an integrated structure with the base plate (8), and the retaining edge (8a) and the cutter head seat (8b) are arranged in parallel.

9. The automatic in-machine replacement assembly for a CNC machining center according to claim 8, characterized in that: The cutter head seat (8b) is provided with a plurality of recessed positioning notches (8b1) along its length direction.

10. The automatic in-machine replacement assembly for a CNC machining center according to claim 9, characterized in that: The retaining edge (8a) and the tool head seat (8b) form a storage unit. The number of the storage units is several, and the storage units are evenly distributed along the width direction of the base plate (8).

Images