Large-diameter tool clamping device

Abstract

The large-diameter tool clamping device structurally comprises a disc-shaped workpiece, an auxiliary supporting block, a reinforcing supporting mechanism, an index plate, a working platform and a three-jaw chuck, the disc-shaped workpiece is installed above the three-jaw chuck, the auxiliary supporting block is installed at the lower end of the disc-shaped workpiece, the reinforcing supporting mechanism is installed on the upper surface of the index plate, and the working platform is installed on the index plate. The three-jaw chuck is fixedly connected to the upper portion of the index plate, the index plate is installed on the upper surface of the working platform, the three-jaw chuck comprises a chuck body and clamping jaws, the clamping jaws are installed on the upper surface of the chuck body, the clamping jaws are matched with the auxiliary supporting blocks to fix the disc-shaped workpiece, and the suspended part of the disc-shaped workpiece is supported in a targeted mode. And the disc-shaped workpiece can be effectively fixed during installation, machining errors caused by installation gaps during machining are avoided, the stability of the disc-shaped workpiece in the machining process is greatly improved, and the machining precision of the disc-shaped workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the field of tool clamping, in particular to a large-diameter tool clamping device. Background Art

[0002] EVA / PE soles refer to soles made of EVA / PE materials. EVA / PE soles have high resilience and tensile strength, high toughness, good shockproof and cushioning performance, excellent heat preservation and low temperature performance. In production, they often use more efficient dual-color temperature panel lights as extrusion equipment. Dual-color temperature panel lights are developed on the basis of single-screw extruders. Due to their good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, they have been widely used in the molding and processing of extruded products.

[0003] In view of the current tooling clamping device, corresponding solutions have been formulated for the following existing problems:

[0004] At present, the clamping device is not suitable for large-diameter disc-shaped workpieces. When facing the clamping work of large-diameter disc-shaped workpieces, it is easy to be unable to clamp effectively because the diameter of the disc-shaped workpiece is too large. The suspended part of the disc-shaped workpiece has no support, which may easily lead to the situation that the processing accuracy cannot be achieved during processing, which greatly affects the processing quality of the final product. Utility Model Content

[0005] The main purpose of the utility model is to overcome the deficiencies of the prior art and provide a large-diameter tooling clamping device.

[0006] The utility model adopts the following technical scheme to achieve: a large-diameter tool clamping device, whose structure includes a disc-shaped workpiece, an auxiliary support block, a reinforced support mechanism, a dividing plate, a working platform, and a three-jaw chuck. The disc-shaped workpiece is installed above the three-jaw chuck, the auxiliary support block is installed at the lower end of the disc-shaped workpiece, the reinforced support mechanism is installed on the upper surface of the dividing plate, the three-jaw chuck is fixedly connected above the dividing plate, and the dividing plate is installed on the upper surface of the working platform. The three-jaw chuck includes a chuck and claws, and the claws are installed on the upper surface of the chuck. The claws cooperate with the auxiliary support block to fix the disc-shaped workpiece.

[0007] Furthermore, the auxiliary support block includes a locking block, a fixing bolt, and a horizontal support sleeve. The horizontal support sleeve is installed on the upper surface of the claw, the locking block is installed on the upper end of the horizontal support sleeve, and the fixing bolts are symmetrically installed on both sides of the locking block.

[0008] Furthermore, the reinforced support mechanism includes a locking nut, a pressure block, a threaded rod, a sliding support platform, a guide slider, a support column, a fixing screw, a limiting pressure plate, and a lifting nut. The threaded rod is fixedly connected to the upper end of the sliding support platform, the pressure block is installed above the sliding support platform, the locking nut is installed on the upper surface of the pressure block, the guide slider is fixed to the lower end of the sliding support platform, the fixing screws are symmetrically distributed on the upper surface of the limiting pressure plate, and the limiting pressure plate is installed on the upper surface of the left step of the sliding support platform.

[0009] Furthermore, the upper surface of the horizontal support sleeve is kept flush with the upper surface of the claw step.

[0010] Furthermore, the diameter of the inner arc surface of the horizontal support sleeve is the same as the diameter of the arc surface of the side surface of the claw.

[0011] Furthermore, the upper end of the support column is in the shape of a flat frustum, and the flat frustum is in direct contact with the lower surface of the disc-shaped workpiece.

[0012] Furthermore, the auxiliary support blocks are provided in three groups, and the auxiliary support blocks are all installed together with the upper end of the claw.

[0013] Furthermore, the reinforcing support mechanism is provided with three groups, and the reinforcing support mechanisms are all installed in the slide groove provided on the upper surface of the dividing plate.

[0014] Beneficial Effects

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is provided with an auxiliary support block and a reinforced support mechanism which can cooperate with a three-jaw chuck to clamp a large-diameter disc-shaped workpiece, specifically support the suspended part of the disc-shaped workpiece, and can effectively fix the installation of the disc-shaped workpiece, avoiding processing errors due to installation gaps during processing, greatly improving the stability of the disc-shaped workpiece during processing, and improving the processing accuracy of the disc-shaped workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the auxiliary support block of the utility model.

[0019] Figure 3 It is a schematic diagram of the internal structure of the strengthening support mechanism of the utility model.

[0020] In the figure: disc-shaped workpiece 1, auxiliary support block 2, reinforced support mechanism 3, dividing plate 4, working platform 5, three-jaw chuck 6, chuck 61, claw 62, locking block 21, fixing bolt 22, horizontal support sleeve 23, locking nut 31, pressure block 32, threaded rod 33, sliding support platform 34, guide slider 35, support column 36, fixing screw 37, limit pressure plate 38, lifting nut 39. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3The utility model provides a technical solution for a large-diameter tool clamping device: its structure includes a disc-shaped workpiece 1, an auxiliary support block 2, a reinforced support mechanism 3, a dividing plate 4, a working platform 5, and a three-jaw chuck 6. The disc-shaped workpiece 1 is installed above the three-jaw chuck 6, the auxiliary support block 2 is installed at the lower end of the disc-shaped workpiece 1, the reinforced support mechanism 3 is installed on the upper surface of the dividing plate 4, the three-jaw chuck 6 is fixedly connected above the dividing plate 4, and the dividing plate 4 is installed on the upper surface of the working platform 5. The three-jaw chuck 6 includes a chuck 61 and a claw 62, and the claw 62 is installed on the upper surface of the chuck 61. The claw 62 cooperates with the auxiliary support block 2 to fix the disc-shaped workpiece 1. The auxiliary support The block 2 includes a locking block 21, a fixing bolt 22, and a horizontal support sleeve 23. The horizontal support sleeve 23 is installed on the upper surface of the claw 62. The convex arc surface of the lower end of the horizontal support sleeve 23 is in contact with the concave arc surface step of the claw 62. The locking block 21 is installed on the upper end of the horizontal support sleeve 23. The fixing bolts 22 are symmetrically installed on both sides of the locking block 21. The locking block 21 is fixed to the upper end of the horizontal support sleeve 23 by the fixing bolts 22. The fixing bolts 22 and the upper end of the horizontal support sleeve 23 can be fixed together by threaded cooperation. The reinforcing support mechanism 3 includes a locking nut 31, a pressure block 32, a threaded rod 33, a sliding support platform 34, a guide slider 35, a support column 36, a fixing bolt The screw pin 37, the limit pressure plate 38, the lifting nut 39, the threaded rod 33 is fixedly connected to the upper end of the sliding support platform 34, the pressure block 32 is installed above the sliding support platform 34, the pressure block 32 is provided with a waist hole, the pressure block 32 can move freely on the support column 36 through the waist hole, the locking nut 31 is installed on the upper surface of the pressure block 32, the locking nut 31 and the threaded rod 33 are threaded together, the locking nut 31 can change the working height of the pressure block 32, the locking nut 31 rotates clockwise to push the pressure block 32 downward, so that the pressure block 32 can press the disc-shaped workpiece 1 downward, the guide slider 35 is fixedly connected to the lower end of the sliding support platform 34, the fixed The screws 37 are symmetrically distributed on the upper surface of the limiting pressure plate 38. The limiting pressure plate 38 is installed on the upper surface of the step on the left side of the sliding support platform 34. The limiting pressure plate 38 is fixed on the top of the lifting nut 39 by the fixing screws 37. The upper surface of the horizontal support sleeve 23 is flush with the upper surface of the step of the claw 62. Extension platforms are provided on both sides of the horizontal support sleeve 23 for the installation of the disc-shaped workpiece 1. When the disc-shaped workpiece 1 is installed, the lower surface of the disc-shaped workpiece 1 can be in contact with the upper surface of the step of the claw 62 and the plane provided by the horizontal support sleeve 23, so as to improve the installation stability of the disc-shaped workpiece 1. The diameter of the inner arc surface of the horizontal support sleeve 23 is the same as the diameter of the side arc surface of the claw 62. As shown in the attached figure Figure 2As shown, when the horizontal support sleeve 23 is installed, the arc surface that it contacts perpendicularly with the plane of the claw 62 is in contact with each other, and the lower surface of the end of the horizontal support sleeve 23 can be in contact with the upper surface of the step of the claw 62. Under the action of the locking block 21 and the horizontal support sleeve 23 being locked to each other by the fixing bolt 22, the horizontal support sleeve 23 will keep the horizontal support sleeve 23 and the claw 62 vertically installed through two arc contact surfaces. The horizontal support sleeve 23 can cooperate with the step of the claw 62 through the internal step provided, and realize the function of automatic alignment when locked, so that the upper surface of the horizontal support sleeve 23 and the upper surface of the claw 62 are kept flush. The upper end of the support column 36 is a flat frustum, and the flat frustum is in direct contact with the lower surface of the disc-shaped workpiece 1. The support column 36 and the lifting nut 39 are threaded together, as shown in the attached Figure 3 As shown, the lifting nut 39 can adjust the working height of the support column 36, so that the support column 36 can play the role of supporting the disc-shaped workpiece 1, supporting the suspended part of the disc-shaped workpiece 1, and preventing the suspended part of the disc-shaped workpiece 1 from being deformed during processing, affecting the processing effect. The auxiliary support block 2 is provided with three groups, and the auxiliary support blocks 2 are all installed together with the upper end of the clamping claw 62. The auxiliary support block 2 can move with the clamping claw 62, and its extended plane can strengthen the supporting effect of the clamping claw 62. The reinforced support mechanism 3 is provided with three groups. The reinforced support mechanism 3 is installed in the slide groove provided on the upper surface of the dividing plate 4. The reinforced support mechanism 3 can slide in the slide groove provided on the upper surface of the dividing plate 4 through the guide slider 35. The slide groove provided on the upper surface of the dividing plate 4 has a distribution angle of 180°, which can be flexibly adjusted according to the diameter of the disc-shaped workpiece 1, as shown in the attached Figure 2 As shown, the reinforcing support mechanism 3 can effectively support the suspended part of the disc-shaped workpiece 1. By adjusting the reinforcing support mechanism 3 to move to the suspended part of the disc-shaped workpiece 1, the upper surface of the support column 36 is adjusted to a height flush with the lower surface of the disc-shaped workpiece 1. The disc-shaped workpiece 1 is supported from below by the support column 36. The pressing block 32 can press the suspended part of the disc-shaped workpiece 1 toward the support column 36 so that it can come into contact with the support column 36 and be supported. While the suspended part of the disc-shaped workpiece 1 is supported, it can also prevent the disc-shaped workpiece 1 from having an installation gap during the cooperation process with the clamping claw 62, so that the suspended part of the disc-shaped workpiece 1 can be effectively supported, thereby improving the processing strength of the disc-shaped workpiece 1.

[0023] The working principle of the large diameter tooling clamping device of the utility model is as follows:

[0024] When the large diameter tooling clamping device is used, the auxiliary support block is preferentially installed on the upper end of the clamping claw, the horizontal support sleeve is kept in a position horizontal with the upper surface of the clamping claw, and is placed vertically on the step at the upper end of the clamping claw, so that the inner arc surface of the horizontal support sleeve can be completely in contact with the arc surface at the clamping claw step, so that the lower surface of the tail end of the horizontal support sleeve is completely in contact with the upper surface of the clamping claw step, and then the locking block and the horizontal support sleeve are fixed together by the fixing bolt. After the fixing is completed, the side surface of the horizontal support sleeve will be parallel to the side surface of the clamping claw, the plane of the horizontal support sleeve will be parallel to the plane of the clamping claw, and the step surface extended by the horizontal support sleeve will be flush with the step surface of the clamping claw. Then adjust the position of the reinforced support mechanism, and move the reinforced support mechanism to the required position through the slide groove on the upper surface of the dividing plate according to the diameter range required for clamping the disc-shaped workpiece. At this time, the operator fixes the support column, and moves the upper surface of the support column to a height flush with the working plane of the clamping claw step by rotating the lifting nut, and then puts the disc-shaped workpiece horizontally into the opening on the clamping claw step, as shown in the attached figure Figure 3 As shown, the lower surface of the disc-shaped workpiece is brought into contact with the upper surface of the claw step, the upper surface of the auxiliary support block and the upper surface of the support column, and the disc-shaped workpiece is initially clamped by the three-jaw chuck. When the disc-shaped workpiece is restricted from moving, the pressing block is swung to a suitable pressing position according to the pressing requirements, and the pressing block is pressed downward by rotating the locking nut. In the process of the pressing block pressing the disc-shaped workpiece downward, the installation gap between the disc-shaped workpiece and the claw step, the auxiliary support block and the support column will be completely eliminated, so that the suspended part of the disc-shaped workpiece can be effectively supported.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A large-diameter tooling clamping device, comprising a disc-shaped workpiece (1), an auxiliary support block (2), a reinforcing support mechanism (3), a dividing plate (4), a working platform (5), and a three-jaw chuck (6), characterized in that: The disc-shaped workpiece (1) is mounted above a three-jaw chuck (6), the auxiliary support block (2) is mounted at the lower end of the disc-shaped workpiece (1), the reinforcing support mechanism (3) is mounted on the upper surface of a dividing plate (4), the three-jaw chuck (6) is fixedly connected to the upper surface of the dividing plate (4), the dividing plate (4) is mounted on the upper surface of a working platform (5), the three-jaw chuck (6) comprises a chuck (61) and a clamping jaw (62), the clamping jaw (62) is mounted on the upper surface of the chuck (61), and the clamping jaw (62) cooperates with the auxiliary support block (2) to fix the disc-shaped workpiece (1).

2. A large diameter tooling clamping device according to claim 1, characterized in that: The auxiliary support block (2) comprises a locking block (21), a fixing bolt (22), and a horizontal support sleeve (23); the horizontal support sleeve (23) is mounted on the upper surface of the claw (62); the locking block (21) is mounted on the upper end of the horizontal support sleeve (23); and the fixing bolt (22) is symmetrically mounted on both sides of the locking block (21).

3. A large diameter tooling clamping device according to claim 1, characterized in that: The reinforcing support mechanism (3) comprises a locking nut (31), a pressure block (32), a threaded rod (33), a sliding support platform (34), a guide slider (35), a support column (36), a fixing screw (37), a limiting pressure plate (38), and a lifting nut (39), wherein the threaded rod (33) is fixedly connected to the upper end of the sliding support platform (34), the pressure block (32) is installed above the sliding support platform (34), the locking nut (31) is installed on the upper surface of the pressure block (32), the guide slider (35) is fixedly connected to the lower end of the sliding support platform (34), the fixing screws (37) are symmetrically distributed on the upper surface of the limiting pressure plate (38), and the limiting pressure plate (38) is installed on the upper surface of the left step of the sliding support platform (34).

4. A large diameter tooling clamping device according to claim 2, characterized in that: The upper surface of the horizontal support sleeve (23) is kept flush with the upper surface of the step of the claw (62).

5. A large diameter tooling clamping device according to claim 2, characterized in that: The diameter of the inner arc surface of the horizontal support sleeve (23) is the same as the diameter of the side arc surface of the claw (62).

6. A large diameter tooling clamping device according to claim 3, characterized in that: The upper end of the support column (36) is in the shape of a flat frustum, and the flat frustum is in direct contact with the lower surface of the disc-shaped workpiece (1).

7. A large diameter tooling clamping device according to claim 1, characterized in that: The auxiliary support blocks (2) are provided in three groups, and the auxiliary support blocks (2) are all mounted together with the upper ends of the claws (62).

8. The large diameter tooling clamping device according to claim 1, characterized in that: The reinforcing support mechanisms (3) are provided in three groups, and the reinforcing support mechanisms (3) are all installed in a slide groove provided on the upper surface of the dividing plate (4).

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