Numerical control vertical lathe high position fixture

Abstract

This utility model relates to the field of CNC vertical lathe high-position clamping technology, and particularly to a CNC vertical lathe high-position clamping fixture, including a clamping base; it also includes trapezoidal clamping blocks, a mounting head, a limiting clamping groove, a replacement clamping head, a limiting clamping rod, side plates, a connecting plate, and a functional cover. The functional cover is located at the center of the top of the clamping base, and three trapezoidal clamping blocks are evenly spaced on the top of the clamping base. In this utility model, the bolts connecting the limiting clamping rod, side plates, and connecting plates to the mounting head are removed using a screwdriver and wrench. Then, the old replacement clamping head is lifted upwards, causing the limiting clamping rod to disengage from the limiting clamping groove. After removing the old replacement clamping head, a replacement clamping head that matches the workpiece curvature is placed on the top of the mounting head. Then, the replacement clamping head is pushed downwards until the limiting clamping rod is engaged in the limiting clamping groove. The two side plates are located on both sides of the mounting head. Finally, the limiting clamping rod, side plates, and connecting plates are fixed to the mounting head with bolts, realizing the function of replacing the curved surface of the clamping plate.

Description

Technical Field

[0001] This utility model relates to the field of CNC vertical lathe high-position clamping technology, and in particular to CNC vertical lathe high-position clamping. Background Technology

[0002] In the field of machining, CNC vertical lathes are a very common type of mechanical equipment, often used for machining workpieces. During the machining process of a CNC vertical lathe, the workpiece needs to be placed on a fixture base to ensure its machining accuracy. The fixture can adjust the clamping range according to the size of the workpiece, but it cannot adjust the curvature of the clamping plate according to the curvature of the workpiece.

[0003] Common CNC vertical lathe high-position clamps only include the function of fixing the workpiece. They can fix the workpiece, but they lack the function of changing the curvature of the clamping plate. They cannot guarantee that the curvature of the clamping plate can be adapted to the curvature of the workpiece. This can easily lead to the problem that the clamping range can be adjusted according to the size of the workpiece, but the curvature of the clamping plate cannot be adjusted according to the curvature of the workpiece, which affects the stability of the workpiece when it is fixed.

[0004] Therefore, although the above-mentioned high-position clamping fixture for CNC vertical lathes can adapt to the workpiece size by adjusting the clamping range, it lacks the function of replacing the clamping plate or dynamically adjusting the curvature of the clamping plate, which leads to a mismatch between the clamping surface and the workpiece curvature, local stress concentration on the contact surface, and affects the clamping stability. A new type of high-position clamping fixture for CNC vertical lathes can be designed. Utility Model Content

[0005] To overcome the common problem of high-position clamps for CNC vertical lathes lacking the function of interchangeable clamping plate surfaces, which cannot guarantee that the curvature of the clamping plate can be adapted to the curvature of the workpiece, the clamp can adjust the clamping range according to the size of the workpiece, but cannot adjust the curvature of the clamping plate according to the curvature of the workpiece, thus affecting the stability of the workpiece when it is fixed.

[0006] The technical solution of this utility model is as follows: a high-position clamp for CNC vertical lathes, including a clamp base; it also includes trapezoidal clamp blocks, mounting heads, limit clamp slots, replacement clamp heads, limit clamp rods, side plates, connecting plates, and functional covers. A functional cover is provided at the center of the top of the clamp base. Three trapezoidal clamp blocks are equally spaced on the top of the clamp base. A mounting head is provided on the top of each trapezoidal clamp block. A limit clamp slot is provided in the middle of the top of the mounting head near the functional cover. A replacement clamp head is provided on the side of the mounting head near the functional cover. A limit clamp rod is provided in the middle of the top of the replacement clamp head near the limit clamp slot. Two side plates are symmetrically provided at both ends of the replacement clamp head near the mounting head. A connecting plate is provided on the top of the side plates near the mounting head.

[0007] Preferably, the bolts connecting the limit lever, side plate, and connecting plate to the mounting head are removed using a screwdriver and wrench. Then, the old replacement clamp is lifted upwards, causing the limit lever to disengage from the limit slot. After removing the old replacement clamp, a replacement clamp adapted to the workpiece curvature is placed on top of the mounting head. The replacement clamp is then pushed downwards until the limit lever engages with the limit slot, with the two side plates positioned on either side of the mounting head. Finally, the limit lever, side plate, and connecting plate are secured to the mounting head with bolts. This achieves the function of interchangeable clamp surface curvature, solving the problem of common CNC vertical lathe high-position clamps that only include workpiece fixing functionality. While they can fix the workpiece, they lack the function of interchangeable clamp surface curvature, making it impossible to guarantee that the curvature of the clamp can match the curvature of the workpiece. This can lead to situations where the clamp can adjust the clamping range according to the workpiece size, but cannot adjust the curvature of the clamp according to the workpiece curvature, affecting the stability of the workpiece during fixing.

[0008] Preferably, the limiting rod is inserted into the limiting groove, and the limiting rod is fixed to the mounting head by bolts.

[0009] Preferably, the side plate is fixed to the mounting head by bolts, and the connecting plate is fixed to the mounting head by bolts.

[0010] Preferably, the top of the clamp holder is provided with six T-shaped grooves at equal intervals, and the bottom of the trapezoidal clamp block is provided with a T-shaped slider.

[0011] Preferably, the T-shaped slider is inserted into the interior of the T-shaped groove, and a drive screw is provided inside the T-shaped groove on the side near the functional cover. The drive screw is threadedly connected to the T-shaped slider.

[0012] Preferably, a bottom cylinder is provided at the center of the bottom of the clamp holder, and an installation ring is provided at the bottom of the bottom cylinder.

[0013] Preferably, the clamp seat, the base cylinder, and the mounting ring are welded together as one piece, and the top of the mounting ring has several fixing holes that are evenly spaced through it.

[0014] The beneficial effects of this utility model are:

[0015] 1. After the operator uses special tools to release the bolts connecting the limit lever, side plate, and connecting plate to the mounting head, the old chuck assembly is vertically lifted to disengage the guide groove from the limit lever. A new chuck assembly matching the workpiece curvature is selected, and its positioning reference surface is aligned with the top of the mounting head. An axial load is applied to press the assembly down along the sliding track until the limit lever and the anti-loosening groove of the new chuck form a self-locking engagement. At the same time, the double-sided positioning guard plates and the mounting head form a symmetrical distribution structure. Finally, the combination of the limit lever, side plate, and connecting plate is secured to the mounting head with high-strength bolts at three points. This modular quick-change system achieves rapid adaptation and stable locking of clamping surfaces with different curvatures through the synergistic effect of the guide groove and the split frame. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the high-position clamp for the CNC vertical lathe of this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the structure of the high-position clamping fixture holder for a CNC vertical lathe according to this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the trapezoidal clamping block structure of the high-position clamping fixture for CNC vertical lathes of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the structure of the high-position clamp mounting head for a CNC vertical lathe according to this utility model.

[0020] Figure 5 The diagram shown is a schematic diagram of the replacement clamp head structure of the high-position clamp of the CNC vertical lathe of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Clamping seat; 2. Trapezoidal clamping block; 3. Mounting head; 4. Limiting slot; 5. Replacement clamping head; 6. Limiting rod; 7. Side plate; 8. Connecting plate; 9. T-shaped slide groove; 10. Drive screw; 11. T-shaped slider; 12. Bottom cylinder; 13. Mounting ring; 14. Fixing hole; 15. Functional cover. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a high-position clamp for a CNC vertical lathe, including a clamp base 1; it also includes trapezoidal clamping blocks 2, mounting heads 3, limiting grooves 4, replacement clamping heads 5, limiting rods 6, side plates 7, connecting plates 8, and a functional cover 15. The functional cover 15 is located at the center of the top of the clamp base 1. Three trapezoidal clamping blocks 2 are evenly spaced on the top of the clamp base 1. Mounting heads 3 are located on the top of the trapezoidal clamping blocks 2. A limiting groove 4 is formed in the middle of the top of the mounting head 3 near the functional cover 15. A replacement clamping head 5 is located on the side of the mounting head 3 near the functional cover 15. A limiting rod 6 is located in the middle of the top of the replacement clamping head 5 near the limiting groove 4. Two side plates 7 are symmetrically arranged at both ends of the replacement clamping head 5 near the mounting head 3. A connecting plate 8 is located on the top of the side plate 7 near the mounting head 3. The bolts connecting the limiting rod 6, side plates 7, and connecting plates 8 to the mounting head 3 are removed using a screwdriver and wrench. The old replacement clamp 5 is then lifted upwards, causing the limiting clamp 6 to disengage from the limiting groove 4. After removing the old replacement clamp 5, a replacement clamp 5 that matches the workpiece curvature is placed on top of the mounting head 3. The replacement clamp 5 is then pushed downwards until the limiting clamp 6 is engaged in the limiting groove 4, with the two side plates 7 positioned on either side of the mounting head 3. Finally, the limiting clamp 6, side plates 7, and connecting plate 8 are fixed to the mounting head 3 with bolts. This achieves the function of interchangeable clamping plate surfaces, solving the problem of common CNC vertical lathe high-position clamps that only include the function of fixing the workpiece. While they can fix the workpiece, they lack the function of interchangeable clamping plate surfaces, making it impossible to ensure that the curvature of the clamping plate matches the curvature of the workpiece. This can lead to situations where the clamp can adjust the clamping range according to the size of the workpiece, but cannot adjust the curvature of the clamping plate according to the curvature of the workpiece, affecting the stability of the workpiece during fixing.

[0024] Please see Figures 2-5 In this embodiment, the T-shaped slider 11 is inserted into the interior of the T-shaped groove 9. A drive screw 10 is provided on the side of the T-shaped groove 9 near the functional cover 15. The drive screw 10 is threadedly connected to the T-shaped slider 11. A bottom cylinder 12 is provided at the center of the bottom of the clamping seat 1. An installation ring 13 is provided at the bottom of the bottom cylinder 12. The clamping seat 1, the bottom cylinder 12 and the installation ring 13 are welded together. Several fixing holes 14 are provided at equal intervals on the top of the installation ring 13. The workpiece is placed in the middle of the three replacement clamps 5. Then, the drive screw 10 is driven to rotate by the motor inside the clamping seat 1. The drive screw 10 drives the T-shaped slider 11 to slide towards the workpiece inside the T-shaped groove 9. The T-shaped slider 11 drives the trapezoidal clamp 2 to move towards the workpiece. The trapezoidal clamp 2 drives the replacement clamp 5 to move towards the workpiece through the installation head 3 until the workpiece is clamped by the cooperation of the three replacement clamps 5.

[0025] Please see Figures 1-5In this embodiment, the limiting rod 6 is inserted into the limiting groove 4. The limiting rod 6 is fixed to the mounting head 3 by bolts. The side plate 7 is fixed to the mounting head 3 by bolts. The connecting plate 8 is fixed to the mounting head 3 by bolts. The top of the clamping seat 1 is provided with six T-shaped sliding grooves 9 at equal intervals. The bottom of the trapezoidal clamping block 2 is provided with a T-shaped slider 11. The bolts connecting the limiting rod 6, side plate 7 and connecting plate 8 to the mounting head 3 are removed by screwdriver and wrench. Then the old replacement clamping head 5 is lifted upwards, thereby causing the limiting rod 6 to disengage from the limiting groove 4. After removing the replacement clamp 5, place the replacement clamp 5, which matches the workpiece curvature, on top of the mounting head 3. Then push the replacement clamp 5 downwards until the limiting clamp 6 is engaged in the limiting clamp groove 4, and the two side plates 7 are located on both sides of the mounting head 3. Finally, fix the limiting clamp 6, side plates 7, and connecting plate 8 to the mounting head 3 with bolts. This realizes the function of replacing the curved surface of the clamping plate, preventing the problem that the clamp can adjust the clamping range according to the size of the workpiece, but cannot adjust the curvature of the clamping plate according to the curvature of the workpiece, thus affecting the stability of the workpiece when it is fixed.

[0026] During operation, the workpiece is placed between the three replacement clamps 5. Then, the motor inside the clamping seat 1 drives the drive screw 10 to rotate. The drive screw 10 drives the T-shaped slider 11 to slide towards the workpiece within the T-shaped groove 9. The T-shaped slider 11 moves the trapezoidal clamp 2 towards the workpiece. The trapezoidal clamp 2, through the mounting head 3, moves the replacement clamps 5 towards the workpiece until the workpiece is clamped by the cooperation of the three replacement clamps 5. When changing the workpiece, the limit clamp 6, side plate 7, and connecting... Remove the bolts connecting the plate 8 to the mounting head 3, then lift the old replacement clip 5 upwards, so that the limiting clip 6 disengages from the inside of the limiting clip groove 4. After removing the old replacement clip 5, place the replacement clip 5 that matches the workpiece curvature on the top of the mounting head 3, and then push the replacement clip 5 downwards until the limiting clip 6 is inserted into the inside of the limiting clip groove 4. The two side plates 7 are located on both sides of the mounting head 3. Finally, fix the limiting clip 6, side plates 7 and connecting plate 8 to the mounting head 3 with bolts, thus realizing the function of replacing the curved surface of the clamping plate.

[0027] Following the steps described above, use a screwdriver and wrench to remove the bolts connecting the limiting rod 6, side plates 7, and connecting plate 8 to the mounting head 3. Then, lift the old replacement clamp 5 upwards, causing the limiting rod 6 to disengage from the limiting groove 4. After removing the old replacement clamp 5, place the replacement clamp 5, which matches the workpiece's curvature, on top of the mounting head 3. Then, push the replacement clamp 5 downwards until the limiting rod 6 engages with the limiting groove 4, with the two side plates 7 positioned on either side of the mounting head 3. Finally, secure the bolts... By fixing the limit lever 6, side plate 7, and connecting plate 8 to the mounting head 3, the function of interchangeable clamping plate surfaces is realized. This solves the problem that common CNC vertical lathe high-position clamps only include the function of fixing the workpiece. While they can fix the workpiece, they lack the function of interchangeable clamping plate surfaces. This makes it impossible to ensure that the curvature of the clamping plate can match the curvature of the workpiece. As a result, the clamping range can be adjusted according to the size of the workpiece, but the curvature of the clamping plate cannot be adjusted according to the curvature of the workpiece, which affects the stability of the workpiece during fixing.

Claims

1. A high-position clamping fixture for a CNC vertical lathe, comprising a clamping base (1); characterized in that: It also includes trapezoidal card blocks (2), mounting heads (3), limiting card slots (4), replacement card heads (5), limiting card rods (6), side plates (7), connecting plates (8) and functional covers (15). The functional cover (15) is provided at the center of the top of the card holder (1). Three trapezoidal card blocks (2) are provided at equal intervals on the top of the card holder (1). The mounting head (3) is provided on the top of the trapezoidal card blocks (2). The limiting card slot (4) is opened in the middle of the top of the mounting head (3) near the functional cover (15). The replacement card head (5) is provided on the side of the mounting head (3) near the functional cover (15). The limiting card rod (6) is provided in the middle of the top of the replacement card head (5) near the limiting card slot (4). Two side plates (7) are symmetrically provided at both ends of the side plate (5) near the mounting head (3). The connecting plate (8) is provided on the top of the side plate (7) near the mounting head (3).

2. The high-position clamp for CNC vertical lathes according to claim 1, characterized in that: The limiting rod (6) is inserted into the limiting groove (4), and the limiting rod (6) is fixed to the mounting head (3) by bolts.

3. The high-position clamp for CNC vertical lathes according to claim 1, characterized in that: The side plate (7) is fixed to the mounting head (3) by bolts, and the connecting plate (8) is fixed to the mounting head (3) by bolts.

4. The high-position clamp for CNC vertical lathes according to claim 1, characterized in that: The top of the clamp holder (1) is provided with six T-shaped grooves (9) at equal intervals, and the bottom of the trapezoidal clamp block (2) is provided with a T-shaped slider (11).

5. The high-position clamp for CNC vertical lathes according to claim 4, characterized in that: The T-shaped slider (11) is inserted into the interior of the T-shaped groove (9). A drive screw (10) is provided on the side of the T-shaped groove (9) near the function cover (15). The drive screw (10) is threadedly connected to the T-shaped slider (11).

6. The high-position clamp for CNC vertical lathes according to claim 1, characterized in that: A bottom cylinder (12) is provided at the center of the bottom of the clamp holder (1), and an installation ring (13) is provided at the bottom of the bottom cylinder (12).

7. The high-position clamp for CNC vertical lathes according to claim 6, characterized in that: The clamp seat (1), the bottom cylinder (12) and the mounting ring (13) are welded together as one unit. The top of the mounting ring (13) has several fixing holes (14) that are equally spaced through it.

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