Four-jaw chuck with heat dissipation structure

Abstract

The four-jaw chuck with the heat dissipation structure comprises a base, four sets of sliding grooves are formed in the side face of the upper portion of the base, a fixing base is fixed to the middle of the upper end of the base, rotating rods are rotationally connected to the periphery of the fixing base through bearings, and the other ends of the rotating rods extend to the outer side of the fixing base and are sleeved with threaded sleeves. The threaded sleeve is located in the sliding groove, the side face of the threaded sleeve is in threaded connection with a clamping jaw, the clamping jaw is slidably connected into the sliding groove, the interior of the rotating rod is connected with an adjusting rod through threads, and a connecting ring is fixed to the end, away from the fixing base, of the interior of the threaded sleeve and slidably connected into the adjusting rod. A first conical tooth is fixed to the end of a rotating rod in the fixing base, a driving motor is fixed to the middle in the base, and the first conical tooth is meshed with a second conical tooth, so that adjustment is convenient, the device can be suitable for irregular workpieces, and meanwhile, heat dissipation of a chuck is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of chuck equipment, in particular to a four-claw chuck with a heat dissipation structure. Background Art

[0002] A chuck is a mechanical device used to clamp a workpiece on a machine tool. It is a machine tool accessory that uses the radial movement of the movable jaws evenly distributed on the chuck body to clamp and position the workpiece. A chuck generally consists of three parts: a chuck body, movable jaws, and a jaw drive mechanism. The chuck body has a minimum diameter of 65 mm and a maximum diameter of 1500 mm. There is a through hole in the center to allow the workpiece or bar to pass through. The back has a cylindrical or short conical structure that is connected to the end of the machine tool spindle directly or through a flange. Chucks are usually installed on lathes, external cylindrical grinders, and internal cylindrical grinders. They can also be used in conjunction with various indexing devices for milling machines and drilling machines.

[0003] In a traditional four-jaw chuck, the jaws move synchronously and the same distance. When clamping a square or oval workpiece, a gasket needs to be added for adjustment, which results in only two jaws receiving a large force when clamping the workpiece, while the other two jaws are clamped in vain, which is prone to vibration and low operating efficiency. Therefore, a four-jaw chuck with a heat dissipation structure is proposed. Utility Model Content

[0004] The utility model aims to provide a four-jaw chuck with a heat dissipation structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a four-jaw chuck with a heat dissipation structure, comprising a base, four groups of sliding grooves are opened on the side surface of the upper part of the base, a fixed seat is fixed in the middle of the upper end of the base, and a rotating rod is rotatably connected to the fixed seat through bearings around the fixed seat, and the other end of the rotating rod extends to the outside of the fixed seat and is sleeved with a threaded sleeve, the threaded sleeve is located in the sliding groove, and the side surface of the threaded sleeve is threadedly connected with a clamping jaw, and the clamping jaw is slidably connected in the sliding groove, and an adjusting rod is threadedly connected inside the rotating rod, and a connecting ring is fixed at one end of the threaded sleeve away from the fixed seat, and the connecting ring is slidably connected in the adjusting rod, and a first conical tooth is fixed on the end of the rotating rod inside the fixed seat, and a driving motor is fixed in the middle part of the base, and the upper output shaft of the driving motor extends into the fixed seat and is fixed with a second conical tooth, and the first conical tooth and the second conical tooth are meshed with each other.

[0006] As a further preferred embodiment of the present technical solution, a groove is provided in the bottom of the base, the drive motor is fixed in the groove, a cooling fan is fixed in the base below the groove, the cooling fan is fixed on a base plate, and the base plate is fixed to the base by bolts.

[0007] As a further preferred embodiment of the present technical solution, an air inlet hole is provided at the lower end of the bottom plate, and an air vent is provided at the bottom of the groove, and the air vent extends to the upper side of the fixing seat.

[0008] As a further preferred embodiment of the present technical solution, the cross-section of the clamping jaw in a side view is stepped, a semicircular groove is provided at the bottom of the clamping jaw, and a thread matching the threaded sleeve is machined inside the semicircular groove.

[0009] As a further preferred embodiment of the present technical solution, the rotating rod, threaded sleeve, adjusting rod and clamping claw are each provided with four groups, and are respectively located in four groups of sliding grooves. The sides of the four groups of rotating rods are welded and fixed with clamping strips, and the insides of the four groups of threaded sleeves are symmetrically provided with clamping slots, and the clamping strips are slidably connected in the clamping slots.

[0010] As a further preferred embodiment of the present technical solution, the interior of the rotating rod is processed with an internal thread, the exterior of the adjusting rod is processed with an external thread, and the cross-section of the adjusting rod is convex in a side view.

[0011] As a further preferred embodiment of the present technical solution, an annular groove is provided at the end of the adjusting rod, a connecting ring is slidably connected in the annular groove, a fixing bolt is threadedly connected to the outer side of the adjusting rod, the fixing bolt passes through the adjusting rod and is screwed into the connecting ring, and a square groove is provided in the middle of the adjusting rod.

[0012] The utility model provides a four-jaw chuck with a heat dissipation structure, which has the following beneficial effects:

[0013] (1) The utility model can synchronously rotate four groups of rotating rods by means of a driving motor arranged inside the base and cooperating with the first conical teeth and the second conical teeth. At the same time, due to the arrangement of the clamping strip and the clamping groove, the rotation of the rotating rod can drive the threaded sleeve to rotate, and then the rotation of the threaded sleeve can drive the four groups of clamping jaws to move, so that square or cylindrical workpieces can be stably clamped. The adjusting rod connected to the internal thread of the rotating rod can extend from the inside of the rotating rod when the adjusting rod is rotated. At the same time, since the connecting ring is slidably connected to the end of the adjusting rod, the adjusting rod will drive the threaded sleeve to move outward on the rotating rod when it is extended, so that the position of the corresponding clamping jaw can be adjusted, so that the movement amount of different clamping jaws can be adjusted, so that irregular workpieces can be clamped.

[0014] (2) The utility model can drive air flow during operation by means of the cooling fan, air vents and air inlet holes disposed inside the base, thereby dissipating heat inside the chuck and reducing the impact of long-term high temperature on the chuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the rotating rod, the threaded sleeve and the adjusting rod of the utility model;

[0018] Figure 4 It is a side view structural schematic diagram of the rotating rod, the threaded sleeve and the adjusting rod of the utility model;

[0019] Figure 5 It is a schematic diagram of the internal structure of the rotating rod, the threaded sleeve and the adjusting rod of the utility model;

[0020] In the figure: 1. base; 2. clamping claw; 3. fixing seat; 4. slide groove; 5. threaded sleeve; 6. adjusting rod; 7. first conical tooth; 8. second conical tooth; 9. driving motor; 10. cooling fan; 11. bottom plate; 12. rotating rod; 13. clamping strip; 14. square groove; 15. connecting ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1-Figure 5 As shown, in the present embodiment, a four-jaw chuck with a heat dissipation structure comprises a base 1, four groups of slide grooves 4 are opened on the upper side of the base 1, a fixed seat 3 is fixed in the middle of the upper end of the base 1, and a rotating rod 12 is rotatably connected to the fixed seat 3 through bearings around the fixed seat 3, and the other end of the rotating rod 12 extends to the outside of the fixed seat 3 and is sleeved with a threaded sleeve 5, the threaded sleeve 5 is located in the slide groove 4, and a clamping jaw 2 is threadedly connected to the side of the threaded sleeve 5, and the clamping jaw 2 is slidably connected to the slide groove 4, and an adjusting rod 6 is threadedly connected to the inside of the rotating rod 12, and a connecting ring 15 is fixed at one end of the threaded sleeve 5 away from the fixed seat 3, and the connecting ring 15 is slidably connected to the adjusting rod 6, and a first conical tooth 7 is fixed to the end of the rotating rod 12 inside the fixed seat 3, and a driving motor 9 is fixed in the middle of the base 1, and the upper output shaft of the driving motor 9 extends to the fixed seat 3 and is fixed with a second conical tooth 8, and the first conical tooth 7 and the second conical tooth 8 are meshed.

[0023] like Figure 1 and Figure 2As shown, a groove is provided at the bottom of the base 1, and the drive motor 9 is fixed in the groove. A cooling fan 10 is fixed in the base 1 at the lower side of the groove. The cooling fan 10 is fixed on a bottom plate 11, and the bottom plate 11 is fixed to the base 1 by bolts. The groove facilitates the installation of the cooling fan 10 and the drive motor 9. An air inlet is provided at the lower end of the bottom plate 11, and an air vent is provided at the bottom of the groove. The air vent extends to the upper side of the fixing seat 3, which facilitates the cooling fan 10 to drive the air flow, thereby improving the heat dissipation efficiency inside the chuck.

[0024] like Figure 4 and Figure 5 As shown, the cross-section of the jaw 2 when viewed from the side is stepped, a semicircular groove is provided at the bottom of the jaw 2, and a thread matching the threaded sleeve 5 is processed inside the semicircular groove, so that when the threaded sleeve 5 rotates, the jaw 2 can be driven to move. There are four groups of rotating rods 12, threaded sleeves 5, adjusting rods 6 and jaws 2, and they are respectively located in four groups of slide grooves 4. The sides of the four groups of rotating rods 12 are welded and fixed with clamping strips 13, and the insides of the four groups of threaded sleeves 5 are symmetrically provided with clamping grooves, and the clamping strips 13 are slidably connected in the clamping grooves. The inside of the rotating rod 12 is processed with internal threads, and the outside of the adjusting rod 6 is processed with external threads. Through the internal and external threads, the adjusting rod 6 can be telescopically moved in the rotating rod 12 when it is rotated, and the cross-section of the adjusting rod 6 when viewed from the side is convex.

[0025] like Figure 3-Figure 5 As shown, an annular groove is provided at the end of the adjusting rod 6, through which the adjusting rod 6 can be rotated conveniently, thereby facilitating the extension and retraction of the adjusting rod 6. A connecting ring 15 is slidably connected in the annular groove, through which the threaded sleeve 5 can be driven to move on the rotating rod 12 when the adjusting rod 6 moves. A fixing bolt is threadedly connected to the outside of the adjusting rod 6, and the fixing bolt passes through the adjusting rod 6 and is screwed into the connecting ring 15, so that the adjusting rod 6 can be fixed conveniently after adjustment. A square groove 14 is provided in the middle of the adjusting rod 6, through which personnel can rotate the adjusting rod 6 through an instrument.

[0026] The utility model provides a four-jaw chuck with a heat dissipation structure, and the specific working principle is as follows: when in normal use, the equipment is powered on, the driving motor 9 drives the second conical teeth 8 to rotate, the rotation of the second conical teeth 8 drives the first conical teeth 7 to rotate, and then drives the four groups of rotating rods 12 to rotate, and when the rotating rods 12 rotate, due to the cooperation of the clamping strip 13 and the clamping groove, the threaded sleeve 5 is driven to rotate, and the rotation of the threaded sleeve 5 drives the clamping jaws 2 to move along the slide groove 4, so that the four groups of clamping jaws 2 move inward synchronously to clamp the workpiece. When clamping an irregular workpiece, the personnel will adjust the The fixing bolt on the rod 6 is unscrewed, and then the adjusting rod 6 is rotated by inserting the tool into the direction groove on the adjusting rod 6. The adjusting rod 6 rotates and extends outward. Through the action of the connecting ring 15, the adjusting rod 6 drives the threaded sleeve 5 to move outward, thereby adjusting the position of the clamping jaws 2, so that the four groups of clamping jaws 2 can directly clamp the workpiece when they shrink inward synchronously. After the position of the four groups of clamping jaws 2 is adjusted, the fixing bolts are used to lock the adjusting rod 6 and the connecting ring 15. When the equipment is in use, the cooling fan 10 can be operated to drive air flow to achieve heat dissipation for the quick chuck.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A four-jaw chuck with a heat dissipation structure, comprising a base (1), Features: Four groups of slide grooves (4) are provided on the upper side of the base (1); a fixed seat (3) is fixed in the middle of the upper end of the base (1); a rotating rod (12) is rotatably connected to the fixed seat (3) via bearings on all sides; the other end of the rotating rod (12) extends to the outside of the fixed seat (3) and is sleeved with a threaded sleeve (5); the threaded sleeve (5) is located in the slide groove (4); a clamping jaw (2) is threadedly connected to the side of the threaded sleeve (5); the clamping jaw (2) is slidably connected to the slide groove (4); the inside of the rotating rod (12) is threaded An adjusting rod (6) is connected, a connecting ring (15) is fixed at one end of the threaded sleeve (5) away from the fixing seat (3), the connecting ring (15) is slidably connected to the adjusting rod (6), a first conical tooth (7) is fixed to the end of the rotating rod (12) inside the fixing seat (3), a driving motor (9) is fixed to the middle part of the base (1), an upper output shaft of the driving motor (9) extends into the fixing seat (3) and is fixed with a second conical tooth (8), the first conical tooth (7) and the second conical tooth (8) are meshed.

2. A four-jaw chuck with a heat dissipation structure according to claim 1, Features: The base (1) has a groove at the bottom thereof, the drive motor (9) is fixed in the groove, a cooling fan (10) is fixed in the base (1) below the groove, the cooling fan (10) is fixed on a bottom plate (11), and the bottom plate (11) is fixed to the base (1) by bolts.

3. A four-jaw chuck with a heat dissipation structure according to claim 2, Features: An air inlet hole is provided at the lower end of the bottom plate (11), and an air vent is provided at the bottom of the groove, and the air vent extends to the upper side of the fixing seat (3).

4. A four-jaw chuck with a heat dissipation structure according to claim 1, Features: The cross section of the clamping jaw (2) is stepped when viewed from the side, and a semicircular groove is provided at the bottom of the clamping jaw (2), wherein a thread matching the threaded sleeve (5) is processed inside the semicircular groove.

5. A four-jaw chuck with a heat dissipation structure according to claim 1, Features: The rotating rod (12), the threaded sleeve (5), the adjusting rod (6) and the clamping claw (2) are each provided in four groups and are respectively located in four groups of slide grooves (4). The sides of the four groups of rotating rods (12) are all welded and fixed with clamping strips (13). The insides of the four groups of threaded sleeves (5) are all symmetrically provided with clamping grooves, and the clamping strips (13) are slidably connected in the clamping grooves.

6. A four-jaw chuck with a heat dissipation structure according to claim 1, Features: The rotating rod (12) is internally processed with an internal thread, the adjusting rod (6) is externally processed with an external thread, and the cross section of the adjusting rod (6) is convex in side view.

7. A four-jaw chuck with a heat dissipation structure according to claim 6, Features: An annular groove is formed at the end of the adjusting rod (6), a connecting ring (15) is slidably connected in the annular groove, a fixing bolt is threadedly connected to the outer side of the adjusting rod (6), the fixing bolt passes through the adjusting rod (6) and is screwed into the connecting ring (15), and a square groove (14) is formed in the middle of the adjusting rod (6).

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