CN209737131U - A clamping device for machine tool replacement - Google Patents

Abstract

The utility model discloses a clamping device which is convenient for machine tools to change tools, which comprises a base, a lower base block, an upper base block, a tool setting adjustment assembly and a fast clamping assembly. The four corners of the base are provided with installation holes, and the middle part of the upper surface of the base is fixed. The lower base block is connected, the outer surface of the third rotating shaft is provided with external threads, and the third rotating shaft is connected with the upper base block through thread rotation, and the bottom of the third rotating shaft is hemispherical, and the outer surface of the fourth rotating shaft is provided with external threads, And the No. 4 rotating shaft and the upper base block are connected by thread rotation, and the bottom of the No. 3 rotating shaft is hemispherical, the lower gear and the worm are worm drive, and there is a metal ring at the connection between the inner hexagonal shaft and the lower base block, which can be quickly clamped The assembly makes the clamping and replacement of the tool very convenient. The tool can be clamped or loosened immediately only through the power switch, and the tool with the same or similar thickness of the handle can be directly replaced, which greatly improves its practicality. Unique, easy and convenient to use, no laborious operation, fast and practical clamp replacement.

Description

A clamping device for machine tool replacement

technical field

The utility model relates to the technical field of machine tool fixtures, in particular to a clamping device for machine tool replacement.

Background technique

A machine tool refers to a machine that manufactures a machine, also known as a machine tool or a tool machine, and is customarily referred to as a machine tool. Generally divided into metal cutting machine tools, forging machine tools and woodworking machine tools. There are many ways to process mechanical parts in modern machinery manufacturing: in addition to cutting, there are also casting, forging, welding, stamping, extrusion, etc. The final machining is done by cutting on the machine tool. Machine tools play an important role in the modernization of the national economy.

Although the existing machine tool clamping devices can complete the task of clamping tool processing, there are still some shortcomings. First of all, most of the clamping devices of machine tool tools are extremely inconvenient when changing tools and require great effort It takes time to unscrew the fixing bolts to take out the tool. When reinstalling the tool, it is even more difficult to tighten the bolt to prevent the tool from being clamped tightly. However, this is time-consuming and laborious, and it is very inconvenient when changing the tool. When the tool needs to be aligned with the center of the workpiece shaft to facilitate processing, traditional machine tools usually use thin shims under the tool to adjust the height of the tool when the tool is centered, but because there are many different tools, it is very troublesome to use. Many shims need to be prepared for adjustment in turn, and the shims themselves have a certain thickness, so that it is difficult to obtain an ideal thickness during adjustment to align the center. Therefore, the utility model proposes a clamping device for machine tool replacement. to solve the above problems.

Utility model content

The purpose of this utility model is to provide a clamping device that is convenient for machine tools to change tools, so as to solve the problem that the clamping device proposed in the background technology is inconvenient when changing tools, and it takes a lot of effort and time to take out the tools, and it takes a lot of effort to reinstall. Tightening the bolts is time-consuming and laborious, and it is very inconvenient to replace. The tool needs to be aligned with the center of the workpiece shaft. Traditionally, thin shims are used to pad under the tool to adjust the height of the tool. Because there are many different tools, it is troublesome to use and requires many shims to be adjusted in sequence. And the gasket itself also has a thickness, which makes it difficult to obtain an ideal thickness to align the center when adjusting.

In order to achieve the above purpose, the utility model provides the following technical solutions: a clamping device for machine tools to facilitate tool replacement, including a base, a lower base block, an upper base block, a tool setting adjustment assembly and a quick clamping assembly, the four corners of the base are A mounting hole is provided, and the middle part of the upper surface of the base is fixedly connected with a lower base block, and the upper ends of the four sides of the lower base block are equipped with a knife adjustment assembly, and an upper base block is fixedly connected above the lower base block, and the upper base block The middle part of the block is equipped with an internal rotating shaft mechanism, and the four sides and lower ends of the upper base block are provided with quick clamping components, and a tool handle is provided under the quick clamping components.

Preferably, the tool setting adjustment assembly also includes a pressure bearing plate, a connecting block, a threaded sleeve, a No. 1 rotating shaft, a fixed ring, a No. 1 sprocket wheel, a No. 1 chain, a No. 2 sprocket wheel, a No. 2 rotating shaft, a lower gear, The worm, the inner hexagon shaft, the connecting block is fixedly connected under the pressure bearing plate, the threaded sleeve is fixedly connected under the connecting block, the threaded sleeve is rotatably connected with a No. 1 rotating shaft, and the outer surface of the No. 1 rotating shaft is rotatably connected with The fixed ring, the No. 1 chain wheel is fixedly connected with a No. 1 sprocket below the No. 1 rotating shaft, and the No. 1 chain wheel is rotatably connected with a No. 1 chain, and the No. 1 chain is rotatably connected with a No. The second rotating shaft, the lower gear is fixedly connected to the lower part of the second rotating shaft, the lower gear is rotatably connected to a worm, and one end of the worm is fixedly connected to an inner hexagonal rotating shaft.

Preferably, the quick clamping assembly also includes an outer hexagon, a No. 3 rotating shaft, a No. 3 sprocket wheel, a No. 2 chain, a No. 4 sprocket wheel, a No. 4 rotating shaft, an upper pressure shell block, a No. Iron, expansion rod, No. 2 tension spring, lower pressure block, lower electromagnet, fixed teeth, No. 3 rotating shaft is fixedly connected below the outer hexagon, and No. 3 chain wheel is fixedly connected above the outer surface of the No. 3 rotating shaft. The No. 3 chain wheel is rotatably connected to the No. 2 chain, the No. 2 chain is rotatably connected to the No. 4 chain wheel, and the No. 4 chain wheel is fixedly connected to the No. 4 rotating shaft, and an upper shell block is arranged below the No. 4 rotating shaft. Both ends above the upper pressing block are provided with No. 1 tension springs, an upper electromagnet is installed below the upper pressing block, and telescopic rods are arranged at both ends below the upper pressing block. A No. 2 tension spring is arranged on the surface, and a lower pressing block is fixedly connected to the bottom of the telescopic rod, and a lower electromagnet is installed above the lower pressing block, and fixed teeth are arranged below the lower pressing block.

Preferably, external threads are provided under the outer surface of the No. 3 rotating shaft, and the No. 3 rotating shaft is rotatably connected to the upper base block through threads, and the bottom of the No. 3 rotating shaft is hemispherical, and external threads are provided under the outer surface of the No. 4 rotating shaft. , and the fourth rotating shaft is connected with the upper base block through thread rotation, and the bottom of the third rotating shaft is hemispherical.

Preferably, the four sides of the pressure bearing plate are provided with downward side plates, external threads are provided above the outer surface of the No. 1 rotating shaft, and the No. 1 rotating shaft and the threaded sleeve are rotatably connected by threads, and a limit cover is provided above the No. 1 rotating shaft , the outer surface of the second rotating shaft is provided with an external thread, and the second rotating shaft is connected to the threaded sleeve through thread rotation, and a limit cover is arranged above the second rotating shaft.

Preferably, the lower gear and the worm are driven by a worm, and a metal ring is provided at the connection between the inner hexagon shaft and the lower base.

Compared with the prior art, the beneficial effects of the utility model are:

1. The use of quick clamping components makes it very convenient to change the clamping of the tool. The tool can be clamped or loosened immediately only through the power switch, and the tool with the same or similar thickness of the tool handle can be directly replaced. Greatly improved its practicability, easy and convenient to use, no laborious operation, fast and practical clamp replacement.

2. Using the tool setting adjustment component, the tool can be quickly and conveniently aligned to the center, and there is no step, which belongs to stepless adjustment. It has high operability and is better than the old-fashioned gasket. At the same time, it adopts the worm drive with self-locking function, which is stable, reliable and flexible. convenient.

3. The four sides of the pressure-bearing plate are equipped with downward side plates, and a limit cover is provided above the No. 1 rotating shaft, and a limit cover is provided above the No. 2 rotating shaft. The lower side plate prevents impurities from entering the interior, so that the components can run stably. The cover prevents it from reaching out of stroke and causing it to fall off.

4. Use the lower gear and the worm as the worm drive, and a metal ring is provided at the connection between the inner hexagonal shaft and the lower base block, so that the adjustment has a self-locking function and enhances its stability and reliability. The metal ring reduces its friction with the outside, so that Easy to turn when adjusting.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;

Fig. 2 is a structural schematic diagram of the quick clamping assembly of the utility model;

Fig. 3 is a structural schematic diagram of the knife setting adjustment assembly of the present invention.

In the figure: 1 base, 2 mounting hole, 3 lower base block, 4 tool setting adjustment assembly, 41 pressure bearing plate, 42 connecting block, 43 threaded sleeve, 44 No. 1 rotating shaft, 45 fixed ring, 46 No. 1 chain wheel, 47 No. 1 chain, 48 No. 2 chain wheel, 49 No. 2 rotating shaft, 410 Lower gear, 411 Worm, 412 Inner hexagonal shaft, 5 Upper base block, 6 Internal shaft mechanism, 7 Quick clamping assembly, 71 Outer hexagon, 72 No. 3 Shaft, 73 No. 3 chain wheel, 74 No. 2 chain, 75 No. 4 chain wheel, 76 No. 4 rotating shaft, 77 upper pressure shell block, 78 No. 1 tension spring, 79 upper electromagnet, 710 telescopic rod, 711 No. 2 pull Tight spring, 712 lower pressing block, 713 lower electromagnet, 714 fixed teeth, 8 handles.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1 to 3, the utility model provides a technical solution: a clamping device for machine tool replacement, including base 1, lower base block 3, upper base block 5, tool setting adjustment assembly 4 and quick clamping Component 7, the four corners of the base 1 are provided with mounting holes 2, the middle part of the upper surface of the base 1 is fixedly connected with the lower base block 3, the upper ends of the four sides of the lower base block 3 are equipped with a knife adjustment assembly 4, and the upper part of the lower base block 3 is fixedly connected with an upper The base block 5 and the middle part of the upper base block 5 are equipped with an internal rotating shaft mechanism 6, and the lower ends of the four sides of the upper base block 5 are provided with a quick clamping assembly 7, and a knife handle 8 is provided below the quick clamping assembly 7.

Further, the tool setting adjustment assembly 4 also includes a pressure bearing plate 41, a connecting block 42, a threaded sleeve 43, a No. 1 rotating shaft 44, a fixed ring 45, a No. 1 sprocket wheel 46, a No. 1 chain 47, a No. 2 sprocket wheel 48, No. 2 rotating shaft 49, lower gear 410, worm screw 411, inner hexagon rotating shaft 412, a connection block 42 is fixedly connected to the bottom of the pressure bearing plate 41, a threaded sleeve 43 is fixedly connected to the bottom of the connection block 42, and the threaded sleeve 43 is rotatably connected to a No. 1 rotating shaft 44, The bottom of the No. 1 rotating shaft 44 outer surface is rotatably connected with a fixed ring 45, and the bottom of the No. 1 rotating shaft 44 is fixedly connected with a No. 1 sprocket wheel 46. The No. 1 chain wheel 46 is rotatably connected with a No. 1 chain 47, and the No. 1 chain 47 is rotatably connected with a No. 2 sprocket wheel. 48, the second chain wheel 48 is fixedly connected with the second rotating shaft 49, the lower gear 410 is fixedly connected under the second rotating shaft 49, the lower gear 410 is connected with the worm 411 in rotation, and one end of the worm 411 is fixedly connected with the inner hexagonal rotating shaft 412. The adjustment component enables the tool to be aligned to the center quickly and conveniently, and there is no step, which belongs to stepless adjustment, which has high operability and is better than the old-fashioned gasket. At the same time, the worm drive with self-locking function is adopted, which is stable, reliable, flexible and convenient.

Further, the quick clamping assembly 7 also includes an outer hexagon 71, a third rotating shaft 72, a third sprocket wheel 73, a second chain 74, a fourth sprocket wheel 75, a fourth rotating shaft 76, an upper pressing shell block 77, a No. Tension spring 78, upper electromagnet 79, telescopic rod 710, No. two tension spring 711, lower pressing block 712, lower electromagnet 713, fixed teeth 714, the outer hexagon 71 below is fixedly connected with No. 3 rotating shaft 72, No. 3 rotating shaft 72 The top of the outer surface is fixedly connected with No. 3 chain wheel 73, and No. 3 chain wheel 73 is rotatably connected with No. 2 chain 74, and No. 2 chain 74 is rotatably connected with No. 4 chain wheel 75, and No. 4 chain wheel 75 is fixedly connected with No. 4 rotating shaft 76. No. 4 rotating shaft 76 belows are provided with upper pressing shell block 77, and the upper two ends of last pressing shell block 77 are all provided with No. 1 tension spring 78, and upper electromagnet 79 is installed below upper pressing shell block 77, and the upper pressing shell block 77 below two telescopic rods 710 are arranged on the outer surface of the telescopic rods 710, and the outer surface of the telescopic rods 710 is provided with a No. 2 tension spring 711; There is a fixed tooth 714 at the bottom, and the clamping and replacement of the tool is very convenient by using the quick clamping component. The tool can be clamped or released immediately only through the power switch, and the tool with the same or similar thickness of the tool handle can be directly Replacing the clamp greatly improves its practicability. It is easy and convenient to use without laborious operation, and the clamp replacement is fast and practical.

Further, the outer surface of the third rotating shaft 72 is provided with external threads, and the third rotating shaft 72 is connected to the upper base block 5 through threads, and the bottom of the third rotating shaft 72 is hemispherical, and the outer surface of the fourth rotating shaft 76 is provided with an external thread. thread, and the fourth rotating shaft 76 is connected with the upper base block 5 through thread rotation, and the bottom of the third rotating shaft 72 is hemispherical.

Further, the four sides of the pressure bearing plate 41 are provided with downward side plates, and the outer surface of the first rotating shaft 44 is provided with external threads, and the first rotating shaft 44 is connected to the threaded sleeve 43 through thread rotation, and the top of the first rotating shaft 44 is provided with a limit position. Cover, the outer surface of the second rotating shaft 49 is provided with external threads, and the second rotating shaft 49 and the threaded sleeve 43 are connected by thread rotation, and the upper part of the second rotating shaft 49 is provided with a limit cover, which prevents impurities from entering the lower side plate, so that the assembly can Stable operation, and the limit cover prevents it from reaching out of the stroke and causing it to fall off.

Further, the lower gear 410 and the worm 411 are driven by worms, and a metal ring is provided at the connection between the inner hexagonal shaft 412 and the lower base block 3, so that the adjustment has a self-locking function, which enhances its stability and reliability, and the metal ring reduces its contact with the outside. The friction makes it easy to turn when adjusting.

Working principle: When fast clamping is required, first put the tool handle 8 under the corresponding quick clamping assembly 7, then rotate the outer hexagon 71 through an external tool, and then pass the outer hexagon 71 through the third rotating shaft 72 and the corresponding chain wheel, No. 3 chain wheel 73, No. 4 chain wheel 75 and No. 2 chain 74 make No. 3 rotating shaft 72 and No. 4 rotating shaft 76 rotate synchronously, and realize synchronous descending by its threaded connection with upper base block 5 again, so that push above shell pressing block 77 and the lower pressing block 712 mainly descend to make it close to the handle of a knife 8, and when the lower pressing block 712 is close to the handle of a knife 8, the rotation of the outer hexagon 71 is stopped, and the upper electromagnet 79 and the lower electromagnet 713 are energized, and Make the magnetic fields repel each other, so that the lower pressing block 712 obtains a downward force through the energized repulsion of the upper electromagnet 79 and the lower electromagnet 713, and then the fixed tooth 714 firmly presses the handle 8 to complete the clamping of the tool , disconnect the upper electromagnet 79 and the lower electromagnet 713 current, you can easily take out the handle 8, so that the replacement of the tool holder is more convenient, the tool holder 8 with the same thickness and similar thickness can directly replace the clamping tool, and The tool with a large difference in the thickness of the tool handle 8 needs to be adjusted by the outer hexagon 71 and then clamped by the electromagnet. The outer hexagon 71 itself only needs to be adjusted for a larger distance without pressure load and no need to twist hard. The adjustment is convenient and easy ; When the tool is put in place and the center tool needs to be set, the tool handle 8 is conveniently the pressure plate 41, and the tool setting adjustment assembly 4 completes the centering of the tool by adjusting the height of the pressure plate 41. First, the tool needs to be inserted into the center Rotate in the hexagonal rotating shaft 412, then drive the worm screw 411 by the inner hexagonal rotating shaft 412, then the lower gear 410 is rotated by the worm screw 411, then the lower gear 410 makes the second rotating shaft 49 rotate, and the second rotating shaft 49 passes through the second chain wheel 48, a The No. chain 47 and the No. 1 chain wheel 46 make the No. 1 rotating shaft 44 synchronously rotate, and the rotation of the No. 1 rotating shaft 44 and the No. 2 rotating shaft 49 is converted into the up and down movement of the threaded sleeve 43 through the threaded connection of the threaded sleeve 43, and finally passes through the connecting block 42. The up and down movement of the threaded sleeve 43 is transmitted to the pressure bearing plate 41 to complete the height adjustment of the pressure bearing plate 41, so that the tool can be quickly and conveniently aligned to the center, and there is no step, which belongs to the stepless adjustment, and the operability is large, which is better than the old one. Gaskets, while using worm drive with self-locking function, stable, reliable, flexible and convenient.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a clamping device convenient to lathe is changed cutter, includes base (1), lower base block (3), goes up base block (5), tool setting adjusting part (4) and quick centre gripping subassembly (7), its characterized in that: base (1) four corners all is equipped with mounting hole (2), base block (3) under base (1) upper surface middle part fixedly connected with, base block (3) four sides upper end all is equipped with tool setting adjusting part (4) down, base block (3) top fixedly connected with goes up base block (5) down, it has inside pivot mechanism (6) to go up base block (5) mid-mounting, it all is equipped with quick centre gripping subassembly (7) to go up base block (5) four sides lower extreme, quick centre gripping subassembly (7) below is equipped with handle of a knife (8).

2. A clamping device for facilitating tool change of a machine tool according to claim 1, wherein: the tool setting adjusting assembly (4) further comprises a bearing plate (41), a connecting block (42), a threaded sleeve (43), a first rotating shaft (44), a fixing ring (45), a first chain wheel (46), a first chain (47), a second chain wheel (48), a second rotating shaft (49), a lower gear (410), a worm (411) and an inner hexagonal rotating shaft (412), the connecting block (42) is fixedly connected below the bearing plate (41), the threaded sleeve (43) is fixedly connected below the connecting block (42), the first rotating shaft (44) is rotatably connected with the threaded sleeve (43), the fixing ring (45) is rotatably connected below the outer surface of the first rotating shaft (44), the first chain wheel (46) is fixedly connected below the first rotating shaft (44), the first chain wheel (46) is rotatably connected with the first chain (47), and the second chain wheel (48) is rotatably connected with the first chain (47), no. two chain wheel (48) fixedly connected with pivot (49) No. two, No. two pivot (49) below fixedly connected with lower gear (410), lower gear (410) rotate and are connected with worm (411), hexagonal pivot (412) in worm (411) one end fixedly connected with.

3. A clamping device for facilitating tool change of a machine tool according to claim 1, wherein: the rapid clamping assembly (7) further comprises an outer hexagonal (71), a third rotating shaft (72), a third chain wheel (73), a second chain (74), a fourth chain wheel (75), a fourth rotating shaft (76), an upper shell pressing block (77), a first tensioning spring (78), an upper electromagnet (79), a telescopic rod (710), a second tensioning spring (711), a lower pressing block (712), a lower electromagnet (713) and a fixed tooth (714), wherein the lower part of the outer hexagonal (71) is fixedly connected with the third rotating shaft (72), the upper part of the outer surface of the third rotating shaft (72) is fixedly connected with the third chain wheel (73), the third chain wheel (73) is rotatably connected with the second chain (74), the second chain (74) is rotatably connected with the fourth chain wheel (75), the fourth chain wheel (75) is fixedly connected with the fourth rotating shaft (76), the lower part of the fourth rotating shaft (76) is provided with the upper shell pressing block (77), go up pressure shell piece (77) top both ends and all be equipped with straining spring (78) No. one, go up electromagnet (79) are installed to last pressure shell piece (77) below, go up pressure shell piece (77) below both ends and all be equipped with telescopic link (710), telescopic link (710) surface is equipped with straining spring (711) No. two, briquetting (712) under telescopic link (710) below fixedly connected with, lower electro-magnet (713) are installed to briquetting (712) top down, briquetting (712) below is equipped with fixed tooth (714) down.

4. a clamping device for facilitating tool change of a machine tool according to claim 3, wherein: no. three pivot (72) surface below is equipped with the external screw thread, and No. three pivot (72) and last base block (5) pass through the screw thread rotation and be connected, and No. three pivot (72) bottom is hemispherical, No. four pivot (76) surface below is equipped with the external screw thread, and No. four pivot (76) and last base block (5) pass through the screw thread rotation and be connected, and No. three pivot (72) bottom is hemispherical.

5. A clamping device for facilitating tool change of a machine tool according to claim 2, wherein: bearing plate (41) four sides all are equipped with the downside board, pivot (44) surface top is equipped with the external screw thread, and pivot (44) and thread bush (43) pass through the screw thread and rotate and be connected, and pivot (44) top is equipped with spacing lid, No. two pivot (49) surface top is equipped with the external screw thread, and No. two pivot (49) and thread bush (43) pass through the screw thread and rotate and be connected, and No. two pivot (49) top is equipped with spacing lid.

6. A clamping device for facilitating tool change of a machine tool according to claim 2, wherein: the lower gear (410) and the worm (411) are in worm transmission, and a metal ring is arranged at the joint of the inner hexagonal rotating shaft (412) and the lower base block (3).