CN215942199U

CN215942199U - Numerical control processing special fixture

Info

Publication number: CN215942199U
Application number: CN202122340030.5U
Authority: CN
Inventors: 耿靖洋
Original assignee: Hangzhou Jialing Technology Co ltd
Current assignee: Hangzhou Jialing Technology Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-04
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a special numerical control machining clamp, which belongs to the field of mechanical clamps and comprises a base, wherein a workbench is arranged on the base, a damping cavity is arranged in the workbench, a bearing plate is arranged in the damping cavity, a fixing plate is inserted at the top of the workbench, a cross shaft is inserted in the fixing plate, a rotating block is arranged at one end of the cross shaft, a clamping block is arranged at the other end of the cross shaft, a limiting groove is formed in the workbench, a limiting block is inserted in the limiting groove, a supporting block is arranged on the workbench, fixing blocks are arranged on the side walls of two ends of the supporting block, a rotating shaft is inserted in the fixing blocks, and a rotating ring is arranged on the rotating shaft. Through adjusting supporting shoe and cross axle, be convenient for press from both sides tightly to not unidimensional, increased real practicality, through carrying out the shock attenuation to the workstation, improved the precision of processing, increased the practicality of device.

Description

Numerical control processing special fixture

Technical Field

The utility model relates to the field of mechanical clamps, in particular to a special clamp for numerical control machining.

Background

Numerical control machining refers to a process method for machining parts on a numerical control machine tool, and the process rules of numerical control machine machining and traditional machine tool machining are consistent on the whole, but are obviously changed. The machining method uses digital information to control the displacement of parts and tools. The method is an effective way for solving the problems of variable part varieties, small batch, complex shape, high precision and the like and realizing efficient and automatic processing. The numerical control machining refers to machining performed by a control system sending instructions to enable a cutter to make various motions according with requirements, and representing technical requirements such as the shape and the size of a workpiece in the form of numbers and letters and machining process requirements. It generally refers to the process of machining parts on a numerically controlled machine tool.

Patent CN202010844913.7 discloses a numerical control machining center special fixture, includes: a fixing plate; the clamping assembly is arranged at the bottom of the fixed plate and comprises two vertical clamping plates which are arranged oppositely, one end of each clamping plate is connected with the fixed plate in a sliding mode through a guide structure, the two clamping plates can move oppositely along the guide structure, and a plurality of clamping parts are uniformly distributed on one opposite sides of the two clamping plates and comprise fixed seats which are fixed with the clamping plates; one side of the fixed seat, which is far away from the clamping plate, is connected with a contact part, and a multi-stage buffer structure is arranged between the contact part and the fixed seat; the fixed plate bottom still is provided with a plurality of telescoping devices, and the flexible end of telescoping device is connected with the one side that deviates from mutually of two grip blocks. The device has the advantages of simple structure and convenient operation, can meet the clamping requirements of workpieces with different shapes on the premise of ensuring stable clamping, avoids clamping injuries on the surfaces of the workpieces, and is worthy of popularization.

Some of the above-mentioned utility model have the disadvantages: 1. the above design does not facilitate clamping of similar parts of varying sizes and improvements are needed. 2. In the design, the vibration of the workbench influences the processing precision of the part in the processing process, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a special clamp for numerical control machining, aiming at facilitating clamping different sizes by adjusting a supporting block and a cross shaft, increasing the real practicability, improving the machining precision by damping a workbench and increasing the practicability of the device.

The specific technical scheme provided by the utility model is as follows:

the utility model provides a special numerical control machining clamp which comprises a base, wherein a workbench is installed on the base, a damping cavity is installed inside the workbench, a bearing plate is installed inside the damping cavity, a fixing plate is inserted into the top of the workbench, a cross shaft is inserted into the fixing plate, a rotating block is installed at one end of the cross shaft, a clamping block is installed at the other end of the cross shaft, a limiting groove is formed in the workbench, a limiting block is inserted into the limiting groove, a supporting block is installed on the workbench, fixing blocks are installed on the side walls of two ends of the supporting block, a rotating shaft is inserted into the fixing blocks, and a rotating ring is installed on the rotating shaft.

Optionally, the shock pad is installed at the bearing plate top, the attenuator is installed to the bearing plate bottom, attenuator internally mounted has compression spring.

Optionally, an installation groove is formed in the workbench, and a fixing plate is movably connected to the horizontal surface in the installation groove.

Optionally, a thread groove B is formed in the fixing plate, multiple groups of thread grooves B are formed in the fixing plate, threads are carved on the outer wall of the cross shaft, and the threads carved on the outer wall of the cross shaft are matched with the thread grooves B.

Optionally, a discharge groove is formed in the supporting block.

Optionally, thread groove A has all been seted up to fixed block and stopper inside, the pivot outer wall is carved with the screw thread, the screw thread and the thread groove A adaptation that the pivot outer wall was carved with.

The utility model has the following beneficial effects:

1. the embodiment of the utility model provides a special clamp for numerical control machining, when in use, a support block is arranged on a workbench, a limit block is inserted into a limit groove, the limit block is arranged at two sides of the support block, a rotating ring is adjusted to drive a rotating shaft, the rotating shaft vertically moves downwards in a thread groove A, the rotating shaft penetrates through a fixed block and then is inserted into the limit block, the support block is fixed through the rotating shaft and the limit block, after the support block is fixed, a part is arranged on the support block, the rotating block is adjusted to drive a cross shaft, the cross shaft horizontally slides in a thread groove B, the rotating shaft drives a clamping block, the clamping block clamps the part, when the sizes of the parts are different, different support blocks are replaced to match the part to be machined, then the cross shaft is adjusted to be inserted into a thread groove B formed in a fixed plate, and the clamping of different sizes is facilitated through the adjustment of the support block and the cross shaft, the real practicability is increased.

2. The embodiment of the utility model provides a special clamp for numerical control machining, when parts are machined, vibration generated by machining is transmitted into a damping cavity, a damping pad arranged on a bearing plate is stressed, the damping pad is high in resilience and tensile strength and strong in toughness and has good damping performance, the vibration transmitted by a workbench is buffered, the bearing plate transmits force to a damper when stressed, a compression spring is arranged in the damper and is a spiral spring bearing pressure, the compression spring is generally a metal wire wound at equal pitch and has a fixed wire diameter, the compression spring supplies resisting force to external load pressure by utilizing a plurality of open coils and pushes back to resist the external pressure, the damper at the bottom of the compression spring provides supporting force for the compression spring, the machining precision is improved by damping the workbench, and the practicability of the device is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a front view of a special fixture for CNC machining according to an embodiment of the present invention;

FIG. 2 is a side view of a special fixture for CNC machining according to an embodiment of the present invention;

fig. 3 is a schematic view of an expanded structure inside the sub-tank in fig. 1 of the numerical control machining special fixture according to the embodiment of the utility model.

In the figure: 1. a master box; 2. a sub-box; 3. a pull rod; 4. a universal wheel; 5. anti-collision bags; 6. connecting blocks; 7. a limiting block; 8. a limiting groove; 9. a chute A; 10. a base; 11. a storage box; 12. a telescopic box; 13. a chute B; 14. a lifting block; 15. a side plate; 16. a support plate; 17. a separation plate; 18. folding the plate A; 19. folding the board B; 20. a groove; 21. a cavity; 22. a support rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A numerical control machining exclusive jig according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1, 2 and 3, the special numerical control machining fixture provided by the embodiment of the utility model comprises a base 1, wherein a workbench 2 is installed on the base 1, a damping cavity 3 is installed inside the workbench 2, a bearing plate 19 is installed inside the damping cavity 3, a fixing plate 5 is inserted into the top of the workbench 2, a cross shaft 7 is inserted into the fixing plate 5, a rotating block 6 is installed at one end of the cross shaft 7, a clamping block 8 is installed at the other end of the cross shaft 7, a limiting groove 9 is formed in the workbench 2, a limiting block 15 is inserted into the limiting groove 9, a supporting block 10 is installed on the workbench 2, fixed blocks 13 are installed on the side walls of two ends of the supporting block 10, a rotating shaft 16 is inserted into the fixed blocks 13, and a rotating ring 14 is installed on the rotating shaft 16.

Referring to fig. 1 and 3, when a part is machined, vibration generated by machining is transmitted into a damping cavity 3, a damping pad 18 mounted on a bearing plate 19 is stressed, the damping pad 18 has high resilience and tensile strength and high toughness, and has good damping performance, the vibration transmitted by a workbench 2 is buffered, the bearing plate 19 transmits force to a damper 20 when stressed, a compression spring 21 is mounted in the damper 20, the compression spring 21 is a spiral spring 21 bearing inward pressure, the compression spring 21 is generally a metal wire wound at equal pitch and has a fixed wire diameter, the compression spring 21 supplies resisting force to external load pressure by using a plurality of open coils and pushes back to resist the external pressure, and the damper 20 at the bottom of the compression spring 21 provides supporting force for the compression spring 21.

Referring to fig. 1, when maintenance of fixing plate 5 is required, fixing plate 5 is pulled and fixing plate 5 is drawn out from mounting groove 4, and maintenance of fixing plate 5 is performed.

Referring to fig. 1 and 2, the rotating block 6 is adjusted, the rotating block 6 drives the transverse shaft 7, the transverse shaft 7 horizontally moves in the thread groove B17, the rotating shaft 16 drives the clamping block 8, and the clamping block 8 clamps the part.

Referring to fig. 1, after the parts are machined on the supporting block 10, impurities generated from the parts slide into the discharge chute 11, so that the parts can be cleaned conveniently.

Referring to fig. 1, the rotating ring 14 is adjusted, the rotating ring 14 drives the rotating shaft 16, the rotating shaft 16 vertically moves downwards in the thread groove a12, the rotating shaft 16 penetrates through the fixing block 13 and then is inserted into the limiting block 15, and the supporting block 10 is fixed through the rotating shaft 16 and the limiting block 15.

The embodiment of the utility model provides a special numerical control machining clamp, when in use, a supporting block 10 is arranged on a workbench 2, a limiting block 15 is inserted into a limiting groove 9, the limiting block 15 is arranged on two sides of the supporting block 10, a rotating ring 14 is adjusted, the rotating ring 14 drives a rotating shaft 16, the rotating shaft 16 vertically moves downwards in a thread groove A12, the rotating shaft 16 penetrates through a fixing block 13 and then is inserted into the limiting block 15, the supporting block 10 is fixed through the rotating shaft 16 and the limiting block 15, after the supporting block 10 is fixed, a part is arranged on the supporting block 10, a rotating block 6 is adjusted, the rotating block 6 drives a transverse shaft 7, the transverse shaft 7 smoothly moves in a thread groove B17, the rotating shaft 16 drives a clamping block 8, the clamping block 8 clamps parts, when the sizes of the parts are different, the supporting block 10 is replaced to be matched with the part to be machined, the transverse shaft 7 is adjusted, the transverse shaft 7 is inserted into a thread groove B17 formed in a fixing plate 5, the supporting block 10 and the cross shaft 7 are adjusted to facilitate clamping different sizes, when parts are machined, vibration generated by machining is transmitted into the damping cavity 3, the damping pad 18 mounted on the bearing plate 19 is stressed, the damping pad 18 has high resilience and tensile strength and high toughness and has good damping performance, vibration transmitted by the workbench 2 is buffered, the bearing plate 19 transmits force to the damper 20 when stressed, the damper 20 is internally provided with the compression spring 21, the compression spring 21 is a spiral spring 21 bearing pressure, the compression spring 21 is generally a metal wire which is wound at equal pitch and has a fixed wire diameter, the compression spring 21 supplies resisting force to external load pressure by utilizing a plurality of open coils and pushes back to resist the external pressure, the damper 20 at the bottom of the compression spring 21 provides supporting force for the compression spring 21, and the machining precision is improved by damping the workbench 2, the practicability of the device is increased.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the utility model. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. The numerical control machining special fixture comprises a base (1) and is characterized in that a workbench (2) is mounted on the base (1), a damping cavity (3) is mounted inside the workbench (2), a bearing plate (19) is mounted inside the damping cavity (3), a fixing plate (5) is inserted into the top of the workbench (2), a transverse shaft (7) is inserted into the fixing plate (5), a rotating block (6) is mounted at one end of the transverse shaft (7), a clamping block (8) is mounted at the other end of the transverse shaft (7), a limiting groove (9) is formed in the workbench (2), a limiting block (15) is inserted into the limiting groove (9), a supporting block (10) is mounted on the workbench (2), fixed blocks (13) are mounted on the side walls of the two ends of the supporting block (10), and a rotating shaft (16) is inserted into the fixed blocks (13), and a rotating ring (14) is arranged on the rotating shaft (16).

2. The special clamp for numerical control machining according to claim 1, wherein a shock absorption pad (18) is installed at the top of the bearing plate (19), a damper (20) is installed at the bottom of the bearing plate (19), and a compression spring (21) is installed inside the damper (20).

3. The special clamp for numerical control machining according to claim 1, wherein an installation groove (4) is formed in the workbench (2), and a fixing plate (5) is connected to the inside of the installation groove (4) in a horizontal sliding manner.

4. The special clamp for numerical control machining according to claim 1, characterized in that a thread groove B (17) is formed in the fixing plate (5) and the thread grooves B (17) are provided with a plurality of groups, the outer wall of the transverse shaft (7) is carved with threads, and the threads carved on the outer wall of the transverse shaft (7) are matched with the thread groove B (17).

5. The clamp special for numerical control machining according to claim 1, wherein a discharge groove (11) is formed in the supporting block (10).

6. The special numerical control machining clamp according to claim 1, wherein thread grooves A (12) are formed in the fixing block (13) and the limiting block (15), threads are formed in the outer wall of the rotating shaft (16), and the threads formed in the outer wall of the rotating shaft (16) are matched with the thread grooves A (12).