Adaptive clamping fixture and clamping method for a numerically controlled machine tool

Abstract

The utility model relates to a kind of adaptive clamping fixture and clamping method for numerical control machine tool, and limit mechanism is installed with equidistant arrangement clamping mechanism on the rotating end, and limit mechanism is installed with adjusting mechanism on fixed end, the drive end of adjusting mechanism is connected with the adjusting end of clamping mechanism, the angle of clamping end of clamping mechanism is adjusted by adjusting mechanism, so that clamping mechanism can clamp different shape materials, rotating ring is equidistantly arranged in support base, and rotating ring is connected by bearing between, and rotating ring close to support base is rotatably connected with the inner wall of support base;A kind of adaptive clamping fixture and clamping method for numerical control machine tool, the position of clamping end of clamping mechanism is adjusted, different shape materials are clamped, the position of clamping end is adjusted by staff, and it is not necessary to spend long time to replace fixture.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for CNC machine tools, and in particular to an adaptive clamping fixture and clamping method for CNC machine tools. Background Technology

[0002] As is well known, CNC machine tools require clamps to hold materials during processing. Due to the different shapes of the materials being processed, different clamps are needed to fix them. Since the shapes of the materials are not fixed, the clamping tools need to be changed according to the different materials being processed. The equipment must be stopped before disassembly can be performed, which is inconvenient for the replacement work and requires a long installation and disassembly time. Therefore, we propose an adaptive clamping fixture and clamping method for CNC machine tools. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this invention discloses an adaptive clamping fixture and clamping method for CNC machine tools. This invention adjusts the position of the clamping end of the clamping mechanism to clamp materials of different shapes, making it convenient for operators to adjust the position of the clamping end without spending a long time changing the fixture.

[0004] To achieve the aforementioned objective, the present invention employs the following technical solution: An adaptive clamping fixture for CNC machine tools includes a limiting mechanism, on the rotating end of the limiting mechanism are clamping mechanisms arranged at equal intervals, and on the fixed end of the limiting mechanism are an adjusting mechanism. The driving end of the adjusting mechanism is connected to the adjusting end of the clamping mechanism. The angle of the clamping end of the clamping mechanism is adjusted by the adjusting mechanism, so that the clamping mechanism can clamp materials of different shapes.

[0005] The limiting mechanism includes a support base, a bearing, and rotating rings. Rotating rings are arranged at equal intervals inside the support base and are connected to each other by bearings. The rotating rings closest to the support base are rotatably connected to the inner wall of the support base.

[0006] The position of the central axis of the support base coincides with the position of the central axis of the rotating ring.

[0007] The support base has a rotating groove on the side near the clamping mechanism.

[0008] The clamping mechanism includes a positioning frame, a screw, a bevel gear, a rotating block, and a threaded connecting block. The positioning frame is located on the rotating ring and is fixedly connected. A screw is rotatably connected inside the positioning frame. One end of the screw passes through the positioning frame and is connected to the bevel gear. A threaded connecting block is threaded onto the screw. A rotating block is fixedly connected to the positioning frame and is located in the rotating groove and is rotatably connected.

[0009] The number of positioning frames is four, and each of the four positioning frames is equipped with a connecting block. The positioning frames are connected to the rotating rings through the connecting blocks, and different positioning frames are connected to different rotating rings.

[0010] The bottom end of the threaded connecting block is connected to the clamping plate via a rotating shaft, and the inner side of the clamping plate is provided with an anti-slip pad.

[0011] The adjustment mechanism includes a limiting plate, a servo motor, a motor bevel gear, a fixed rod, and a connecting plate. The fixed rod is equidistantly arranged on the support base and fixedly connected, and the limiting plate is fixedly connected to the fixed rod. The limiting plate is provided with equidistantly arranged sliding grooves, and the connecting plate is slidably connected in the sliding grooves. The connecting plate is connected to the rotating ring, and the top of the connecting plate is threaded with a nut. The servo motor is fixedly connected to the limiting plate, and the servo motor is connected to the bevel gear through the motor bevel gear.

[0012] The position of the central axis of the slide groove coincides with the position of the central axis of the support base, and the thickness of the connecting plate of different slide grooves is different.

[0013] An adaptive clamping fixture method for CNC machine tools includes the following steps: S1. The operator moves the position of the clamping end on the clamping mechanism according to the shape of the material to be clamped; S2. After moving, align the clamping ends of the clamping mechanism with the edges of the material. S3. By adjusting the mechanism, the clamping end of the clamping mechanism is driven to work and clamp the material.

[0014] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: The present invention discloses an adaptive clamping fixture and clamping method for CNC machine tools. By adjusting the position of the clamping end of the clamping mechanism, materials of different shapes can be clamped. This makes it convenient for operators to adjust the position of the clamping end without spending a long time changing the fixture. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the present invention; 1. Limiting mechanism; 101. Support base; 102. Bearing; 103. Rotating ring; 2. Clamping mechanism; 201. Positioning frame; 202. Screw; 203. Bevel gear; 204. Rotating block; 205. Threaded connecting block; 206. Clamping plate; 3. Adjusting mechanism; 301. Limiting plate; 302. Servo motor; 303. Motor bevel gear; 304. Connecting plate. Detailed Implementation

[0016] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0017] Combined with appendix Figures 1-3 An adaptive clamping fixture for CNC machine tools includes a limiting mechanism 1. A clamping mechanism 2 is installed on the rotating end of the limiting mechanism 1 at equal intervals, and an adjusting mechanism 3 is installed on the fixed end of the limiting mechanism 1. The driving end of the adjusting mechanism 3 is connected to the adjusting end of the clamping mechanism 2. The angle of the clamping end of the clamping mechanism 2 is adjusted by the adjusting mechanism 3, so that the clamping mechanism 2 can clamp materials of different shapes.

[0018] The limiting mechanism 1 includes a support base 101, a bearing 102 and a rotating ring 103. The rotating rings 103 are arranged at equal intervals inside the support base 101 and are connected to each other through the bearing 102. The rotating rings 103 close to the support base 101 are rotatably connected to the inner wall of the support base 101.

[0019] The position of the central axis of the support base 101 coincides with the position of the central axis of the rotating ring 103.

[0020] The support base 101 has a rotating groove on the side near the clamping mechanism 2.

[0021] The clamping mechanism 2 includes a positioning frame 201, a screw 202, a bevel gear 203, a rotating block 204, and a threaded connecting block 205. The positioning frame 201 is located on the rotating ring 103 and is fixedly connected. The screw 202 is rotatably connected inside the positioning frame 201. One end of the screw 202 passes through the positioning frame 201 and is connected to the bevel gear 203. The threaded connecting block 205 is threadedly connected to the screw 202. The rotating block 204 is fixedly connected to the positioning frame 201 and is located in the rotating groove and is rotatably connected.

[0022] There are four positioning frames 201, and each of the four positioning frames 201 is equipped with a connecting block. The positioning frames 201 are connected to the rotating ring 103 through the connecting blocks, and different positioning frames 201 are connected to different rotating rings 103.

[0023] The bottom end of the threaded connecting block 205 is connected to the clamping plate 206 via a rotating shaft, and the inner side of the clamping plate 206 is provided with an anti-slip pad.

[0024] The adjustment mechanism 3 includes a limiting plate 301, a servo motor 302, a motor bevel gear 303, a fixing rod, and a connecting plate 304. The fixing rod is equidistantly arranged on the support base 101 and fixedly connected, and the limiting plate 301 is fixedly connected to the fixing rod. The limiting plate 301 is provided with equidistantly arranged sliding grooves, which are arranged along the center line of the circle. The connecting plate 304 is slidably connected in the sliding grooves. The connecting plate 304 is connected to the rotating ring 103, and a nut is threaded to the top of the connecting plate 304. The servo motor 302 is fixedly connected to the limiting plate 301, and the servo motor 302 is connected to the bevel gear 203 through the motor bevel gear 303.

[0025] The position of the central axis of the slide groove coincides with the position of the central axis of the support base 101, and the thickness of the connecting plate 304 in different slide grooves is different. The connecting plate 304 in the long slide groove is thicker, the connecting plate 304 in the short slide groove is thinner, and so on in the middle.

[0026] An adaptive clamping fixture method for CNC machine tools includes the following steps: S1. The operator moves the position of the clamping end on the clamping mechanism 2 according to the shape of the material to be clamped; S2. After moving, the clamping end of the clamping mechanism 2 will be aligned with each edge of the material; S3. By adjusting mechanism 3, the clamping end of clamping mechanism 2 is driven to work and clamp the material.

[0027] The adaptive clamping fixture for CNC machine tools described above allows the operator to adjust the clamping mechanism 2 according to the shape of the material to be processed. Rotating the nut on the connecting plate 304 disengages the nut from the limiting plate 301, and the connecting plate 304 moves via the nut. During this movement, the connecting plate 304 drives the rotating ring 103, which is fixed to the positioning frame 201, to rotate, adjusting the position of the positioning frame 201 so that the clamping plate 206 on the positioning frame 201 aligns with the edge of the material to be processed. The servo motor 302 drives the bevel gear 203 to rotate via the motor bevel gear 303, which in turn drives the screw 202 to rotate. The screw 202 then drives the clamping plate 206 to move simultaneously inward or outward, thus clamping the material to be processed.

[0028] The parts of this invention not described in detail are prior art. Although the invention has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of the invention. However, those skilled in the art should understand that various changes in form and detail can be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the invention.

Claims

1. An adaptive clamping fixture for CNC machine tools, comprising a limiting mechanism, characterized in that: The limiting mechanism has a clamping mechanism installed on its rotating end, and an adjusting mechanism installed on its fixed end. The driving end of the adjusting mechanism is connected to the adjusting end of the clamping mechanism. The angle of the clamping end of the clamping mechanism is adjusted by the adjusting mechanism, so that the clamping mechanism can clamp materials of different shapes.

2. The adaptive clamping fixture for CNC machine tools according to claim 1, characterized in that: The limiting mechanism includes a support base, a bearing, and rotating rings. Rotating rings are arranged at equal intervals inside the support base and are connected to each other by bearings. The rotating rings closest to the support base are rotatably connected to the inner wall of the support base.

3. The adaptive clamping fixture for CNC machine tools according to claim 2, characterized in that: The position of the central axis of the support base coincides with the position of the central axis of the rotating ring.

4. The adaptive clamping fixture for CNC machine tools according to claim 2, characterized in that: The support base has a rotating groove on the side near the clamping mechanism.

5. The adaptive clamping fixture for CNC machine tools according to claim 1, characterized in that: The clamping mechanism includes a positioning frame, a screw, a bevel gear, a rotating block, and a threaded connecting block. The positioning frame is located on the rotating ring and is fixedly connected. A screw is rotatably connected inside the positioning frame. One end of the screw passes through the positioning frame and is connected to the bevel gear. A threaded connecting block is threaded onto the screw. A rotating block is fixedly connected to the positioning frame and is located in the rotating groove and is rotatably connected.

6. The adaptive clamping fixture for CNC machine tools according to claim 5, characterized in that: The number of positioning frames is four, and each of the four positioning frames is equipped with a connecting block. The positioning frames are connected to the rotating rings through the connecting blocks, and different positioning frames are connected to different rotating rings.

7. The adaptive clamping fixture for CNC machine tools according to claim 5, characterized in that: The bottom end of the threaded connecting block is connected to the clamping plate via a rotating shaft, and the inner side of the clamping plate is provided with an anti-slip pad.

8. The adaptive clamping fixture for CNC machine tools according to claim 1, characterized in that: The adjustment mechanism includes a limiting plate, a servo motor, a motor bevel gear, a fixed rod, and a connecting plate. The fixed rod is equidistantly arranged on the support base and fixedly connected, and the limiting plate is fixedly connected to the fixed rod. The limiting plate is provided with equidistantly arranged sliding grooves, and the connecting plate is slidably connected in the sliding grooves. The connecting plate is connected to the rotating ring, and the top of the connecting plate is threaded with a nut. The servo motor is fixedly connected to the limiting plate, and the servo motor is connected to the bevel gear through the motor bevel gear.

9. An adaptive clamping fixture for CNC machine tools according to claim 8, characterized in that: The position of the central axis of the slide groove coincides with the position of the central axis of the support base, and the thickness of the connecting plate of different slide grooves is different.

10. A method for using an adaptive clamping fixture for CNC machine tools, comprising the following steps: S1. The operator moves the position of the clamping end on the clamping mechanism according to the shape of the material to be clamped; S2. After moving, align the clamping ends of the clamping mechanism with the edges of the material. S3. By adjusting the mechanism, the clamping end of the clamping mechanism is driven to work and clamp the material.

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