Square hole front clamp groove clamp jaw
By using independently controlled chuck design and transmission components, the problem of the narrow applicability of traditional chucks is solved, enabling high-precision clamping of square tubes with different aspect ratios, thus improving processing efficiency and equipment durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI KANDINI PRECISION TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional four-jaw synchronous linkage structures are difficult to adapt to square tubes with different aspect ratios, resulting in reduced clamping accuracy, inability to achieve uniform contact pressure, and impact on processing accuracy and efficiency.
The device employs an independently controlled chuck design, using a combination of cylinders, ring plates, internal gear rings, and gears to achieve independent movement of opposing sliders. Combined with a geared motor and helical gear transmission, it can clamp square tubes with different aspect ratios. Friction is reduced by using needle roller bearings, and the durability of the equipment is improved by using a stainless steel protective plate.
The chuck's applicability and clamping accuracy have been improved, enhancing the equipment's convenience and durability, and increasing processing accuracy and efficiency.
Smart Images
Figure CN224309646U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chuck technology, specifically a square hole front chuck with bevel. Background Technology
[0002] In the beveling process of square tubes, the square hole front clamping jaws are the core components for stable workpiece clamping, and their performance directly affects machining accuracy and production efficiency. With the increasing demand for square tube components in the industrial manufacturing sector, square tube specifications are showing a trend of diversification. In particular, square tubes with different aspect ratios place higher demands on the adaptability and clamping accuracy of the jaws.
[0003] However, the traditional four-jaw synchronous linkage mechanism ensures that the jaws move the same distance in all four directions during expansion or contraction. This makes it difficult to achieve precise clamping when dealing with square tubes with significant differences in aspect ratio. Furthermore, the traditional four-jaw synchronous linkage structure cannot be adjusted to accommodate square tubes with varying aspect ratios. Because the extension and retraction distance of each jaw cannot be independently controlled, it is difficult to create uniform and sufficient contact pressure between the jaws and the tube wall, resulting in reduced positioning accuracy of the square tube within the jaws. To address these issues, the inventors propose a square-hole front-jawed jaw to solve these problems. Utility Model Content
[0004] In order to solve the problems of poor flexibility and limited applicability of traditional chucks, the purpose of this utility model is to provide a square hole front chuck bevel chuck.
[0005] To solve the above technical problems, this utility model adopts the following technical solution: a square-hole front-mounted beveled jaw, including a base, a mounting plate at the top of the base, centrally symmetrically distributed support columns fixedly connected to the top edge of the mounting plate, a top plate fixedly connected between the tops of the support columns, four centrally symmetrically distributed linear slide rails fixedly connected to the top of the top plate, sliders slidably engaging at the top of each linear slide rail, jaws fixedly connected to the top of each slider, the jaws being divided into a group, two sets of transmission components provided between the top plate and the mounting plate, the transmission components being used to drive the opposing jaws to move relative to each other, a protective plate fixedly connected between the edges of the base and the top plate, the protective plate being made of stainless steel, and the hollow dimension of the product being designed as a square hole.
[0006] Preferably, the transmission assembly includes an annular plate, two annular plates sliding relative to each other, an internal gear ring provided on the inner side of the annular plate, a gear one rotatably connected to the mounting plate and the top plate near the slider, the gear one meshing with the corresponding internal gear ring, a gear two fixedly connected to one coaxial end of the gear, the diameter of the gear two being larger than the diameter of the gear one, a rack provided on one side of the slider, the gear two meshing with the rack, and four cylinders centrally symmetrically distributed fixedly mounted on the top of the mounting plate, the piston rods of two cylinders rotatably connected to the corresponding annular plate.
[0007] Preferably, a slewing bearing is fixedly installed inside the base, the inner ring of the slewing bearing is rotatably connected to the mounting plate, a helical gear ring is fixedly connected to the outer side of the inner side of the slewing bearing, a helical gear is fixedly installed on the side of the base near the helical gear ring, a reduction motor is fixedly connected to the drive end of the helical gear, and the reduction motor meshes with the helical gear ring.
[0008] Preferably, a centrally symmetrically distributed support rod is fixedly connected to the top of the mounting plate near the support column, and a support plate is fixedly connected between the top ends of the support rods. A centrally symmetrically distributed needle roller bearing is rotatably connected to the top edge of the support plate, and both annular plates are limited and fixed between the inner sides of the needle roller bearings.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] 1. Through the cooperation between the cylinder, the ring plate, the internal gear ring, gear one and gear two, the two opposing sliders and the chuck are driven to move horizontally along the top of the linear slide rail towards or away from the center of the equipment. Since the two opposing sliders work independently, they can clamp square tubes with different aspect ratios, which further improves the processing range of the chuck. At the same time, there is no need to manually change the chuck position, which further improves the convenience of using the equipment.
[0011] 2. By setting the diameter of gear two to be larger than that of gear one, the required stroke of the cylinder is reduced while the chuck can clamp a larger range. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the internal structure of the chuck claw of this utility model.
[0015] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0016] Figure 4 This is a partial structural diagram of the present invention.
[0017] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle
[0018] In the diagram: 1. Base; 2. Mounting plate; 3. Support column; 4. Top plate; 5. Linear slide rail; 6. Slider; 7. Claw; 8. Transmission assembly; 81. Annular plate; 82. Internal gear ring; 83. Gear 1; 84. Gear 2; 85. Rack; 86. Cylinder; 9. Slewing bearing; 10. Helical gear ring; 11. Helical gear; 12. Gearbox; 13. Support rod; 14. Support plate; 15. Needle roller bearing; 16. Protective plate. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example: Figure 1-5 As shown, this utility model provides a square hole front bevel clamping claw, including a base 1, a mounting plate 2 at the top of the base 1, a centrally symmetrically distributed support column 3 fixedly connected to the top edge of the mounting plate 2, a top plate 4 fixedly connected between the tops of the support column 3, four centrally symmetrically distributed linear slide rails 5 fixedly connected to the top of the top plate 4, a slider 6 slidably engaged at the top of each linear slide rail 5, a clamping claw 7 fixedly connected to the top of each slider 6, the opposing clamping claws 7 being divided into a group, and two sets of transmission components 8 being provided between the top plate 4 and the mounting plate 2, the transmission components 8 being used to drive the opposing clamping claws 7 to move relative to each other.
[0021] The transmission assembly 8 includes annular plates 81, which slide relative to each other. An internal gear ring 82 is provided on the inner side of the annular plates 81. Gear 1 83 is rotatably connected to the mounting plate 2 and the top plate 4 on the side near the slider 6. Gear 1 83 meshes with the corresponding internal gear ring 82. Gear 2 84 is fixedly connected to one end of the coaxial gear 1 83. A rack 85 is provided on one side of the slider 6. Gear 2 84 meshes with the rack 85. Four cylinders 86 are fixedly installed on the top of the mounting plate 2 in a centrally symmetrical arrangement. The piston rods of two cylinders 86 are rotatably connected to the corresponding annular plates 81.
[0022] By adopting the above technical solution, the extension and retraction of the piston rods of the two corresponding cylinders 86 pushes the annular plate 81 connected to the piston rods of the cylinders 86 to rotate. The internal gear ring 82 meshes with gear 1 83, which in turn drives gear 1 83 and gear 2 84 to rotate. Gear 2 84 meshes with rack 85, which in turn drives the two opposing sliders 6 to move horizontally along the top of the linear slide rail 5 towards or away from the center of the equipment. Since the two opposing sliders 6 work independently, the clamping operation of square tubes with different aspect ratios can be realized.
[0023] A slewing bearing 9 is fixedly installed inside the base 1. The inner ring of the slewing bearing 9 is rotatably connected to the mounting plate 2. A helical gear ring 10 is fixedly connected to the outer side of the inner side of the slewing bearing 9. A helical gear 11 is fixedly installed on the side of the base 1 close to the helical gear ring 10. A reduction motor 12 is fixedly connected to the drive end of the helical gear 11. The reduction motor 12 is meshed with the helical gear ring 10.
[0024] By adopting the above technical solution, the helical gear 11 drives the reduction motor 12 to rotate. The reduction motor 12 meshes with the helical gear ring 10, and at the same time drives the inner ring of the slewing bearing 9 to rotate, thereby driving the components on the mounting plate 2 to rotate, and then driving the square tube to rotate.
[0025] The top of the mounting plate 2 is fixedly connected to the side of the support column 3 with centrally symmetrically distributed support rods 13. The top ends of the support rods 13 are fixedly connected to the support plate 14. The top edge of the support plate 14 is rotatably connected to the needle roller bearings 15 that are centrally symmetrically distributed. Both annular plates 81 are limited and fixed between the inner sides of the needle roller bearings 15.
[0026] By adopting the above technical solution, the needle roller bearing 15 is set on the periphery of the annular plate 81, which facilitates the fixing of the annular plate 81 and the rotation of the annular plate 81, thereby reducing friction.
[0027] A protective plate 16 is fixedly connected between the edge of the base 1 and the top plate 4. The protective plate 16 is made of stainless steel.
[0028] By adopting the above technical solution and setting the protective plate 16, it is convenient to carry out dust prevention treatment inside the equipment. At the same time, the protective plate 16 is made of stainless steel metal material, which is more economical, durable and aesthetically pleasing.
[0029] The diameter of gear 2, 84, is larger than the diameter of gear 1, 83.
[0030] By adopting the above technical solution, and by setting the diameter of gear 2 84 to be larger than the diameter of gear 1 83, the required stroke of cylinder 86 is reduced while the chuck 7 can clamp a larger range.
[0031] The hollow part of the product is designed as a square hole.
[0032] By adopting the above technical solution, the hollow part of the product is designed as a square hole, which further improves the applicability of the equipment.
[0033] Working principle: When processing the workpiece tube, the extension and retraction of the piston rods of the two corresponding cylinders 86 pushes the annular plate 81 connected to the piston rods of the cylinders 86 to rotate. The internal gear ring 82 meshes with gear 1 83, which in turn drives gear 1 83 to rotate with gear 2 84. Gear 2 84 meshes with rack 85, which in turn drives the two opposing sliders 6 and chuck 7 to move horizontally along the top of the linear slide rail 5 towards or away from the center of the equipment. Since the two opposing sliders 6 work independently, they can clamp square tubes with different aspect ratios.
[0034] Furthermore, a needle roller bearing 15 is provided on the periphery of the annular plate 81 to facilitate the fixing of the annular plate 81 and to facilitate the rotation of the annular plate 81, thereby reducing friction.
[0035] When the workpiece tube needs to be flipped, the helical gear 11 drives the reduction motor 12 to rotate. The reduction motor 12 meshes with the helical gear ring 10, which in turn drives the inner ring of the slewing bearing 9 to rotate, thereby driving the components on the mounting plate 2 to rotate, and in turn driving the square tube to rotate.
[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A square-hole front-mounted beveled jaw, comprising a base (1), characterized in that: The top of the base (1) is provided with a mounting plate (2). The top edge of the mounting plate (2) is fixedly connected with centrally symmetrically distributed support columns (3). The tops of the support columns (3) are fixedly connected with a top plate (4). The top of the top plate (4) is fixedly connected with four sets of centrally symmetrically distributed linear slide rails (5). The top of each linear slide rail (5) is slidably engaged with a slider (6). The top of each slider (6) is fixedly connected with a claw (7). Opposite claws (7) are divided into a group. Two sets of transmission components (8) are provided between the top plate (4) and the mounting plate (2). The transmission components (8) are used to drive the opposite claws (7) to move relative to each other.
2. The square hole front bevel clamping claw as described in claim 1, characterized in that, The transmission assembly (8) includes an annular plate (81), two annular plates (81) slide relative to each other, an internal gear ring (82) is provided on the inner side of the annular plate (81), a gear 1 (83) is rotatably connected to the mounting plate (2) and the top plate (4) near the slider (6), the gear 1 (83) meshes with the corresponding internal gear ring (82), a gear 2 (84) is fixedly connected to one end of the gear 1 (83) on the same axis, a rack (85) is provided on one side of the slider (6), the gear 2 (84) meshes with the rack (85), and four cylinders (86) are fixedly installed on the top of the mounting plate (2) in a centrally symmetrical distribution, the piston rods of two cylinders (86) are rotatably connected to the corresponding annular plate (81).
3. The square hole front bevel clamping claw as described in claim 1, characterized in that, A slewing bearing (9) is fixedly installed inside the base (1). The inner ring of the slewing bearing (9) is rotatably connected to the mounting plate (2). A helical gear ring (10) is fixedly connected to the outer side of the inner side of the slewing bearing (9). A helical gear (11) is fixedly installed on the side of the base (1) near the helical gear ring (10). A gear reduction motor (12) is fixedly connected to the drive end of the helical gear (11). The gear reduction motor (12) meshes with the helical gear ring (10).
4. A square-hole front-end bevel clamping claw as described in claim 2, characterized in that, The top of the mounting plate (2) is fixedly connected to a centrally symmetrically distributed support rod (13) on the side near the support column (3). The top ends of the support rod (13) are fixedly connected to a support plate (14). The top edge of the support plate (14) is rotatably connected to a centrally symmetrically distributed needle roller bearing (15). The two annular plates (81) are both limited and fixed between the inner sides of the needle roller bearing (15).
5. A square-hole front-end bevel clamping claw as described in claim 1, characterized in that, A protective plate (16) is fixedly connected between the edge of the base (1) and the top plate (4), and the protective plate (16) is made of stainless steel.
6. A square-hole front-end bevel clamping claw as described in claim 2, characterized in that, The diameter of gear two (84) is greater than the diameter of gear one (83).
7. A square-hole front-end bevel clamping claw as described in claim 1, characterized in that, The hollow part of the product is designed as a square hole.