A numerical control lathe clamp spring

Abstract

The application discloses a numerical control lathe clamp spring, which comprises a clamp spring sleeve, a clamping part fixedly connected to the front section of the clamp spring sleeve, and an arc hole for accommodating a rod part arranged in the middle of the clamping part; the clamping part is provided with an elastic contraction groove, and the elastic contraction groove symmetrically divides the clamping part into two upper and lower clamping parts. When the two upper and lower clamping parts are clamped by a bolt, the two upper and lower clamping parts are elastically retracted into the elastic contraction groove to radially clamp the outer circle of the rod part, thereby providing radial displacement limiting; since the arc holes of the two upper and lower clamping parts are arranged in the vertical direction, the arc hole of the lower clamping part temporarily holds up the rod part of the bolt during bolt dismounting, thereby solving the problem that the three clamping claws are not arranged in the vertical direction, and the three clamping claws are not temporarily held up during bolt dismounting, and are thus prone to falling.

Description

Technical Field

[0001] This utility model relates to a CNC lathe retaining spring, belonging to the field of lathe clamping technology. Background Technology

[0002] When machining the rotating body of the bolt shank on a lathe, due to the significant difference in outer diameter between the head 81 and the shank 82 of the bolt 8, see... Figure 5 As shown. When using a three-jaw chuck to clamp and fasten the outer circle of a cylinder, although the ends of the jaws 9 can be machined into arcs to contact and clamp with the arc of the outer circle of the shank 12 of the bolt 1, as... Figure 4 As shown. However, after the bolts are processed, they need to be disassembled from between the three jaws. After processing a certain number of bolts, the arc shape at the ends of the three jaws will be deformed, and the circumferential array of the three jaws will not be vertical. There is no temporary support when the bolts are disassembled and installed, which makes the bolts easy to fall off. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a CNC lathe retaining ring.

[0004] This utility model is achieved through the following technical solution.

[0005] This utility model provides a retaining circlip for a CNC lathe, including a retaining circlip sleeve; A clamping part is fixedly connected to the front section of the snap ring sleeve, and an arc hole for accommodating the rod is provided in the middle of the clamping part; the clamping part is provided with an elastic contraction groove, which symmetrically divides the clamping part into upper and lower halves.

[0006] The retaining sleeve is integrally and fixedly connected to the clamping part.

[0007] The rear end of the snap ring sleeve is provided with a threaded fixing position for threaded engagement and fixed connection with a CNC lathe.

[0008] The threaded fixing position is integrally fixedly connected to the snap ring sleeve.

[0009] A head clearance groove is provided between the upper and lower clamping parts for the head to slide and be pushed in.

[0010] The clamping part is provided with a relief platform on the side. The relief platform is recessed from the clamping part toward the snap ring sleeve, and the relief platform forms a recessed platform structure on the side of the clamping part.

[0011] The clamping part at the clearance platform is provided with a U-shaped groove larger than the size of the rod, and the head rests against the clearance platform and aligns with the head clearance groove.

[0012] The clamping portions on both sides of the U-shaped groove are chamfered.

[0013] The beneficial effects of this utility model are as follows: when the bolt is clamped in the upper and lower clamping parts, the upper and lower clamping parts elastically shrink inward towards the elastic contraction groove to radially clamp the outer circle of the rod, providing radial displacement limit; since the arc hole of the upper and lower clamping parts is in the vertical direction, when the bolt is disassembled or installed, the arc hole of the lower clamping part provides temporary support for the bolt rod, which solves the problem that the bolt is easy to fall off because the three claws are not distributed in a vertical circumferential array and there is no temporary support when the bolt is disassembled or installed. Attached Figure Description

[0014] Figure 1 This is the front view of this utility model; Figure 2 Therefore Figure 1 The left view is based on this. Figure 3 This is a front view of the utility model when it is installed with bolts; Figure 4 It is a diagram showing the installation layout of the bolts and the three clamps; Figure 5 This is the front view of the bolt; In the diagram: 1-Spring sleeve; 2-Allowing platform; 3-Elastic contraction groove; 4-Clamping part; 41-Arc hole; 5-U-groove; 6-Threaded fixing position; 7-Head clearance groove; 8-Bolt; 81-Head; 82-Rod; 9-Claw. Detailed Implementation

[0015] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0016] like Figures 1 to 3 As shown.

[0017] This application discloses a CNC lathe retaining circlip, specifically a clamping fixture used when turning bolt shank blanks on a CNC lathe, comprising: The rear end has a snap ring sleeve 1 with a threaded fixing position 6. The threaded fixing position 6 is integrally fixedly connected with the snap ring sleeve 1. The threaded fixing position 6 is used to make a threaded engagement and fixed connection with the CNC lathe.

[0018] The front end of the retaining sleeve 1 is integrally fixedly connected to a clamping part 4, and the clamping part 4 has an arc hole 41 in the middle for accommodating the rod part 82. The clamping part 4 is provided with an elastic contraction groove 3, which symmetrically divides the clamping part 4 into upper and lower halves. The upper and lower halves of the clamping part 4 are radially clamped to the outer circle of the rod part 82 by the retaining sleeve 1 as the force point and the elastic contraction groove 3. A head relief groove 7 is provided between the upper and lower halves of the clamping part 4 for the head 81 to slide into. When the upper and lower halves of the clamping part 4 radially clamp the outer circle of the rod part 82, the upper and lower halves of the clamping part 4 will not axially press the head 81 at the head relief groove 7.

[0019] The clamping part 4 is provided with a relief platform 2 on its side. The relief platform 2 is recessed from the clamping part 4 toward the snap ring sleeve 1. The relief platform 2 forms a recessed platform structure on the side of the clamping part 4. The clamping part 4 at the relief platform 2 is provided with a U-shaped groove 5 that is larger than the size of the rod 82. The head 81 is aligned with the head relief groove 7 based on the relief platform 2. The rod 82 is aligned with the U-shaped groove 5 and guided by it, so that the bolt 8 can quickly slide into or out of the clamping part 4.

[0020] When the bolt 8 is clamped in the upper and lower clamping parts 4, the upper and lower clamping parts 4 elastically shrink inward towards the elastic contraction groove 3 to radially clamp the outer circle of the rod 82, providing radial displacement limit; since the arc hole 41 of the upper and lower clamping parts 4 is in the vertical direction, when the bolt 8 is disassembled and installed, the arc hole 41 of the lower clamping part 4 provides temporary support for the rod 82 of the bolt 8, which solves the problem that the bolt is easy to fall off because the three claws are not in the vertical direction and there is no temporary support when disassembling and installing.

[0021] The clamping portions 4 on both sides of the U-shaped groove 5 are chamfered to prevent sharp points from interfering with the clamping.

[0022] A specific operating method for using the aforementioned CNC lathe retaining ring is as follows: The threaded fixing position 6 of the retaining ring is screwed and fixedly connected to the CNC equipment thread. The robot arm grabs the bolt 8 and moves it to the clearance table 2. The head 81 is aligned with the head clearance groove 7 based on the clearance table 2. The rod 82 is aligned with the U-shaped groove 5 and guided by it, so that the bolt 8 quickly slides into the arc hole 41 in the middle of the upper and lower clamping parts 4 for temporary support, so as to achieve non-interference assembly between the bolt 8 and the clamping parts 4. The upper and lower clamping parts 4 are subjected to pressure towards the center by the tightening device of the CNC lathe. The upper and lower clamping parts 4 elastically shrink in the elastic contraction groove 3. The upper and lower clamping parts 4 radially clamp the outer circle of the rod 82. At this time, the upper and lower clamping parts 4 will not axially press the head 81 at the head clearance groove 7 to avoid deformation of the head 81.

Claims

1. A CNC lathe retaining ring, characterized in that, Including the snap ring sleeve (1); The clamping part (4) is fixedly connected to the front section of the snap ring sleeve (1). The clamping part (4) has an arc hole (41) in the middle to accommodate the rod part (82). The clamping part (4) is provided with an elastic shrinkage groove (3), which symmetrically divides the clamping part (4) into upper and lower halves.

2. The CNC lathe retaining ring as described in claim 1, characterized in that: The retaining sleeve (1) is integrally and fixedly connected to the clamping part (4).

3. The CNC lathe retaining ring as described in claim 1, characterized in that: The rear end of the snap ring sleeve (1) is provided with a threaded fixing position (6) for threaded engagement and fixed connection with a CNC lathe.

4. The CNC lathe retaining ring as described in claim 3, characterized in that: The threaded fixing position (6) is integrally fixedly connected with the snap ring sleeve (1).

5. The CNC lathe retaining ring as described in claim 1, characterized in that: A head clearance groove (7) is provided between the upper and lower two clamping parts (4) for the head (81) to slide and push in.

6. The CNC lathe retaining ring as described in claim 5, characterized in that: The clamping part (4) is provided with a relief platform (2) on the side. The relief platform (2) is recessed from the clamping part (4) toward the snap ring sleeve (1). The relief platform (2) forms a recessed platform structure on the side of the clamping part (4).

7. The CNC lathe retaining ring as described in claim 6, characterized in that: The clamping part (4) at the clearance platform (2) is provided with a U-shaped groove (5) larger than the size of the rod (82), and the head (81) is aligned with the head clearance groove (7) based on the clearance platform (2).

8. The CNC lathe retaining ring as described in claim 7, characterized in that: The clamping parts (4) on both sides of the U-shaped groove (5) are chamfered.

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