A quick-change clamp suitable for CNC automatic feeding and discharging

Abstract

This utility model proposes a quick-change fixture suitable for automatic loading and unloading in CNC machining, comprising: a clamping component, which includes a mounting base connected to the output end of the machining spindle and a clamping execution unit disposed at the end of the mounting base; a gas distribution component, fixed to the radial side of the machining spindle housing, which includes a support frame connected to the machining spindle housing and an air passage interface component disposed at the bottom of the support frame, the air passage interface component having at least one main input air passage, the inlet end of the main input air passage being connected to an external air source, and the outlet end being opened on the bottom surface of the air passage interface component; and an air passage transfer component, which is disposed on the radial side of the mounting base via a lateral bracket, the air passage transfer component having a main air supply channel inside, the main air supply channel passing through the lateral bracket and communicating with the clamping drive component. Through the above method, the loading and unloading time of a single product is shortened, effectively improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of CNC equipment technology, and in particular to a quick-change fixture suitable for automatic loading and unloading of CNC equipment. Background Technology

[0002] In traditional CNC automated machining, workpiece loading and unloading rely on manual operation. Operators need to take out the workpieces from the tray one by one and move them to the machine table. After the workpieces are processed, they are taken out one by one and sent to the subsequent workpiece cleaning equipment. This process is repeated many times, making the whole process cumbersome and the work efficiency low. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a quick-change fixture with a simple structure that effectively improves work efficiency and is suitable for automatic loading and unloading in CNC machining.

[0004] The main contents of this utility model include: a clamping component, which includes a mounting base connected to the output end of the machining spindle and a clamping execution unit disposed at the end of the mounting base. The clamping execution unit includes an openable and closeable jaw and a pneumatic drive component for driving the jaw.

[0005] A gas distribution component is fixed to the radial side of the machining spindle housing. It includes a support frame connected to the machining spindle housing and an air passage interface component located at the bottom of the support frame. The air passage interface component is provided with at least one main input air passage. The inlet end of the main input air passage is connected to an external air source, and the outlet end is located on the bottom surface of the air passage interface component.

[0006] An air transfer component is mounted on the radial side of the mounting base via a lateral support. The air transfer component has a main air supply channel inside, which is connected to the pneumatic drive component.

[0007] The machining spindle drives the clamping member to move axially, so that the upper end face of the air passage transfer member is in contact with or separated from the bottom face of the air passage interface member; when in contact, the outlet end of the main input air passage is connected to the input end of the main supply air channel to supply air to the pneumatic drive member.

[0008] Preferably, the air transfer component has an auxiliary air supply channel independent of the main air supply channel, and the output end of the auxiliary air supply channel is located on the bottom surface of the air transfer component and is equipped with a universal nozzle.

[0009] Preferably, the input end of the auxiliary air supply is located on the upper surface of the air passage transfer component, and the air passage interface has a branch air passage independent of the main input air passage. The inlet end of the branch air passage is connected to an external air source, and the outlet end is located on the bottom surface of the air passage interface. When connected, the outlet end of the branch air passage is connected to the input end of the auxiliary air supply channel of Susonghu.

[0010] Preferably, the outlet end of the main input air path and the outlet end of the branch air path are provided with a recessed annular groove, and a sealing ring is provided in the recessed annular groove.

[0011] Preferably, both the input end of the main air supply channel and the input end of the auxiliary air supply channel are provided with a recessed annular groove, and a sealing ring is provided in the recessed annular groove.

[0012] Preferably, a positioning unit is provided between the mating surfaces of the air passage interface component and the air passage transfer component, which includes: a positioning post provided on one mating surface; and a positioning hole provided on the other mating surface for insertion and engagement with the positioning post.

[0013] Preferably, a buffer spring is sleeved on the outer periphery of the positioning post.

[0014] Preferably, the pneumatic drive component is connected to the mounting base via a detachable fastener.

[0015] Preferably, the mounting base is a tool holder, used to adapt to CNC machining spindles and milling cutter magazines.

[0016] The beneficial effects of this utility model are as follows: By driving the fixture axially through the CNC spindle, the air circuit interface component and the air circuit transfer component can be accurately and quickly connected and separated. When connected, the main air circuit is automatically connected, and when separated, it is automatically disconnected, eliminating the need for manual insertion and removal of air pipes; the fixture is directly compatible with the CNC machining spindle and the milling cutter magazine, realizing automatic and rapid switching between the fixture and the tool during the machining process; it replaces the manual loading and unloading operation mode, significantly shortening the loading and unloading time of a single product and effectively improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a preferred embodiment;

[0018] Figure 2 This is a side view of a preferred embodiment.

[0019] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0020] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of BB;

[0021] Figure label:

[0022] 1. Clamping component; 11. Mounting base; 12. Clamping actuator; 121. Gripper; 122. Pneumatic drive component;

[0023] 2. Gas distribution components; 21. Support frame; 22. Gas connection components; 221. Main input gas path; 222. Branch gas path; 223. Sealing ring;

[0024] 3. Gas transfer components; 31. Main air supply channel; 32. Auxiliary air supply channel; 33. Universal nozzle; 34. Piping;

[0025] 4. Lateral support. Detailed Implementation

[0026] The technical solution protected by this utility model will be described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, this application proposes a quick-change fixture suitable for CNC loading and unloading, which includes a clamping component 1, a gas distribution component 2, and a gas transfer component 3. This quick-change fixture can be adapted to a CNC machining spindle for automated loading and unloading of products, replacing the traditional manual loading and unloading of materials one by one, effectively improving work efficiency and speeding up the processing cycle.

[0028] like Figure 1 As shown, the clamping component 1 includes a mounting base 11 connected to the output end of the machining spindle and a clamping execution unit 12 disposed at the end of the mounting base 11. The clamping execution unit 12 includes an openable gripper 121 and a pneumatic drive 122 for driving the gripper 121. When ventilated, the pneumatic drive 122 can drive the gripper to perform the product clamping action. In a specific embodiment, the pneumatic drive 122 is a cylinder.

[0029] Furthermore, the clamping actuator 12 is connected to the mounting base 11 via detachable fasteners, allowing for adaptive adjustments to the clamping actuator 12 based on the shape of the product being clamped, thereby expanding the applicability of the clamp and improving application flexibility. Preferably, the detachable fasteners can be screws, bolts, nuts, or other similar components.

[0030] Furthermore, in a specific embodiment, the mounting base 11 is a tool holder, used to adapt to the CNC machining spindle and the milling cutter magazine, so as to perform the switching action between the quick-change fixture and the tool.

[0031] like Figure 1-3As shown, the gas distribution component 2 is fixed to the radial side of the machining spindle housing. It includes a support frame 21 connected to the machining spindle housing and an air passage interface 22 located at the bottom of the support frame 21. The air passage interface 22 is provided with at least one main input air passage 221. The inlet end of the main input air passage 221 is connected to an external air source, and the outlet end is located on the bottom surface of the air passage interface 22.

[0032] like Figure 1-3 As shown, the gas transfer component 3 is mounted on the radial side of the mounting base 11 via a lateral support 4, positioning it below the gas distribution component 2. The gas transfer component 3 has a main gas supply channel 31 internally, which communicates with the pneumatic drive component 122. The input end of the main gas supply channel 31 is located on the upper surface of the gas transfer component 3, and its output end is connected to the pneumatic drive component 122 via a pipe 34. In a specific embodiment, the output end of the main gas supply channel 31 may be located on the side surface or bottom surface of the gas transfer component 3.

[0033] Specifically, the machining spindle drives the clamping component 1 to move axially, so that the upper end face of the air passage transfer component 3 is in contact with or separated from the bottom face of the air passage interface component 22. When in the docking state, the outlet end of the main input air passage 221 is connected to the input end of the main air supply channel 31. An external air source supplies air to the main input air passage 221. The airflow reaches the pneumatic drive component 122 after passing through the main air supply channel 31, so as to drive the pneumatic drive component 122.

[0034] like Figure 1-4 As shown, the air transfer component 3 further includes an auxiliary air supply channel 32 independent of the main air supply channel 31. The output end of the auxiliary air supply channel 32 is located on the bottom surface of the air transfer component 3 and is equipped with a universal nozzle 33. By supplying air into the auxiliary air supply channel 32, the airflow is sprayed out through the universal nozzle 33 to clean and blow away the product while it is being picked up or placed.

[0035] like Figure 1-4 As shown, in one embodiment, the air path interface 22 has a branch air path 222 independent of the main input air path 221. The inlet end of the branch air path 222 is connected to an external air source, and the outlet end is located on the bottom surface of the air path interface 22. Correspondingly, the input end of the auxiliary air supply channel 32 is located on the upper surface of the air path transfer component 3. When the air path interface 22 and the air path transfer component 3 are in a docked state, the outlet end of the branch air path 222 is connected to the input end of the auxiliary air supply channel 32, the external air source supplies air, and the airflow flows through the auxiliary air supply channel 32 and is ejected through the universal nozzle 33.

[0036] like Figure 1-4 As shown, preferably, both the outlet end of the main input air passage 221 and the outlet end of the branch air passage 222 are provided with a recessed annular groove, and a sealing ring 223 is provided in the recessed annular groove to improve the airtightness of the connection.

[0037] In another embodiment, both the input end of the main air supply channel 31 and the input end of the auxiliary air supply channel 32 are provided with a recessed annular groove, and a sealing ring 223 is provided in the recessed annular groove to improve the sealing performance of the connection.

[0038] like Figure 1-4 As shown, a positioning unit 224 is provided between the mating surfaces of the air passage interface component 22 and the air passage transfer component 3. The positioning unit 224 includes a positioning post on one mating surface and a positioning hole on the other mating surface for insertion and engagement with the positioning post. Specifically, the machining spindle drives the air passage transfer component 3 towards the air passage interface component 22, and the positioning post is correspondingly inserted into the positioning hole to ensure the mating accuracy of the two components. Preferably, a buffer spring is fitted around the outer periphery of the positioning post to provide mating buffer force and prevent excessive collision force from damaging the components.

[0039] Working principle:

[0040] The operator pre-places the full material tray at the material release position, which is within the movable range of the machining spindle.

[0041] The machining spindle assembles a quick-change fixture from the tool magazine and moves the quick-change fixture closer to the gas distribution component 2, so that the gas interface component 22 and the gas transfer component 3 are in a docking state.

[0042] The machining spindle descends to above the material tray, and the pneumatic drive unit 122, after being ventilated, drives the gripper 121 to grab the product on the material tray.

[0043] The machining spindle drives the quick-change fixture and the clamped product to move above the machining station. The machining spindle then descends as a whole, the jaws open, and the product falls onto the machining station.

[0044] The machining spindle drives the clamping component 1 to move away from the gas distribution component 2, the gas interface component 22 separates from the gas transfer component 3, the machining spindle drives the quick change fixture to be inserted into the tool magazine, after the machining spindle is separated from the quick change fixture, the machining tool is replaced and installed, and the product continues to be processed.

[0045] This application allows for quick-change fixtures to be adapted to CNC systems, requiring only manual loading and unloading of the material trays, while the quick-change fixtures handle the loading and unloading of individual products, effectively improving work efficiency.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quick-change fixture suitable for CNC automatic loading and unloading, characterized in that, Mainly includes: The clamping member (1) includes a mounting base (11) connected to the output end of the machining spindle and a clamping execution unit (12) disposed at the end of the mounting base (11). The clamping execution unit (12) includes an openable gripper (121) and a pneumatic drive (122) for driving the gripper (121). Gas distribution component (2) is fixed to the radial side of the machining spindle housing. It includes a support frame (21) connected to the machining spindle housing and an air passage interface (22) provided at the bottom of the support frame (21). The air passage interface (22) is provided with at least one main input air passage (221). The air inlet end of the main input air passage (221) is connected to an external air source, and the air outlet end is opened on the bottom surface of the air passage interface (22). The air transfer component (3) is provided on the radial side of the mounting base (11) via a lateral bracket (4). The air transfer component (3) has a main air supply channel (31) inside, which is connected to the pneumatic drive component (122). The machining spindle drives the clamping member (1) to move axially, so that the upper end face of the air passage transfer member (3) is in contact with or separated from the bottom face of the air passage interface member (22); when in contact, the outlet end of the main input air passage (221) is connected to the input end of the main air supply channel (31) to supply air to the pneumatic drive member (122).

2. The quick-change fixture for CNC automatic loading and unloading as described in claim 1, characterized in that, The gas transfer component (3) is provided with an auxiliary gas supply channel (32) independent of the main gas supply channel (31). The output end of the auxiliary gas supply channel (32) is located on the bottom surface of the gas transfer component (3) and is equipped with a universal nozzle (33).

3. The quick-change fixture for CNC automatic loading and unloading as described in claim 2, characterized in that, The input end of the auxiliary air supply channel (32) is located on the upper surface of the air transfer component (3). The air interface component (22) is provided with a branch air path (222) independent of the main input air path (221). The inlet end of the branch air path (222) is connected to an external air source, and the outlet end is located on the bottom surface of the air interface component (22). When connected, the outlet end of the branch air path (222) is connected to the input end of the auxiliary air supply channel (32).

4. The quick-change fixture for CNC automatic loading and unloading as described in claim 3, characterized in that, The outlet end of the main input air passage (221) and the outlet end of the branch air passage (222) are provided with a sinking ring groove, and a sealing ring (223) is provided in the sinking ring groove.

5. The quick-change fixture for CNC automatic loading and unloading as described in claim 3, characterized in that, The input end of the main gas supply channel (31) and the input end of the auxiliary gas supply channel (32) are both provided with a sinking ring groove, and a sealing ring (223) is provided in the sinking ring groove.

6. The quick-change fixture for CNC automatic loading and unloading as described in claim 1, characterized in that, A positioning unit is provided between the mating surfaces of the air passage interface component (22) and the air passage transfer component (3), which includes: a positioning post on one mating surface; and a positioning hole on the other mating surface for insertion and engagement with the positioning post.

7. The quick-change fixture for CNC automatic loading and unloading as described in claim 6, characterized in that, A buffer spring is fitted around the outer periphery of the positioning post.

8. The quick-change fixture for CNC automatic loading and unloading as described in claim 1, characterized in that, The pneumatic drive unit (122) is connected to the mounting base (11) via a detachable fastener.

9. The quick-change fixture for CNC automatic loading and unloading according to any one of claims 1-8, characterized in that, The mounting base (11) is a tool holder used to adapt to CNC machining spindles and milling cutter magazines.

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