CN221516875U

CN221516875U - Clamping fixture for CNC (computer numerical control) machining

Info

Publication number: CN221516875U
Application number: CN202322732898.9U
Authority: CN
Inventors: 甄磊
Original assignee: Gaomi Rongda Machinery Co ltd
Current assignee: Gaomi Rongda Machinery Co ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-08-13
Anticipated expiration: 2033-10-12

Abstract

The utility model discloses a clamping fixture for CNC (computer numerical control) processing, which relates to the technical field of fixtures and comprises a main body, wherein a clamping assembly and a positioning assembly are arranged on the surface of the main body, the clamping assembly is positioned on one side of the positioning assembly and comprises a bearing block arranged on the surface of the main body, a positioning block is fixedly and slidingly connected on the surface of the bearing block, and an annular array of sliding grooves are formed in the positioning block. According to the clamping fixture for CNC machining, the circular workpiece can be firmly clamped by the clamping assembly, the surface of the rubber block has certain viscosity, so that the rubber block can be adhered to the surface of the workpiece, when the rubber block contacts with the workpiece, the adhesion effect can increase the contact force between objects, further the friction force is increased, and the phenomenon that the workpiece can be overturned during clamping can be prevented due to the fact that the rubber block has the characteristic of elastic deformation, so that the problem that the precision can be reduced is further solved.

Description

Clamping fixture for CNC (computer numerical control) machining

Technical Field

The utility model relates to the technical field of clamps, in particular to a clamping clamp for CNC machining.

Background

CNC refers to numerical control machine tools, CNC machining refers to a method for automated machining by means of a machine tool controlled by a computer program, and during CNC machining, clamping fixtures play a vital role in fixing and clamping workpieces so as to ensure stability, accuracy and safety of the workpieces during machining.

CNC needs to be to its centre gripping to the in-process of processing to the work piece, and the work piece shape that needs to process is various, and wherein, partial current anchor clamps are when the work piece centre gripping to the cylinder shape, because its surface does not have sufficient gripping power, make cylindric work piece produce rotatory or unstable condition easily, will lead to the machining precision decline, probably still can lead to anchor clamps and cutter to receive the damage.

Disclosure of utility model

The present utility model has been made in view of the problem that the above-described conventional jig may cause instability and thus decrease machining accuracy when clamping a cylindrical workpiece.

Therefore, the utility model aims to provide a clamping fixture for CNC machining, which aims to: the problem of current anchor clamps when the work piece centre gripping to the cylinder shape, probably can lead to its unstability and cause the machining precision to drop is solved.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a CNC adds clamping anchor clamps for processing, it includes the main part, the surface mounting of main part has clamping component and locating component, clamping component is located one side of locating component, clamping component is including installing the carrier block at the main part surface, the fixed surface sliding connection of carrier block has the locating piece, annular array's spout has been seted up to the inside of locating piece, the inside of spout is equipped with the moving part, the driving piece is installed at the top of locating piece.

As an improved scheme, the moving part comprises a clamping plate movably connected to the surface of the bearing block, a sliding block is movably sleeved on the surface of the clamping plate, a sliding shaft is fixedly connected to the surface of the sliding block and fixed to the inside of the sliding groove, the clamping part is mounted at the other end of the clamping plate, and the sliding groove can prevent the clamping plate from being clamped.

As an improved scheme, the clamping piece is including installing the grip block in grip block one end, the internally mounted of grip block has the rubber block, spread groove and recess have been seted up to the inside of grip block, the both sides at the spread groove are seted up to the recess, the grip block is located the inside of spread groove, and rather than the adaptation, the recess is located the surface of locating piece, and rather than the adaptation, the surface mounting of grip block has the gim peg, the grip block is connected through the gim peg with the gim peg, and the gim peg can make things convenient for the installation and the dismantlement of grip block, makes things convenient for the workman to carry out timely change thereof, and the rubber block can increase the frictional force with cylindrical work piece, prevents its skew.

As an improved scheme, the driving piece is including fixing the fixed block on the carrier block surface, the inside of fixed block is equipped with the bolt, the surface of bolt and the one end threaded connection who keeps away from the fixed block have the nut, the nut is located the top of locating piece, and carries out swing joint with it, and the nut carries out swing joint with the locating piece, can prevent that the bolt from blocking.

As an improvement, the positioning assembly comprises an adjusting piece positioned in the main body, and a lifting piece is mounted on the top of the adjusting piece.

As an improved scheme, the adjusting piece is including seting up at the inside model groove of main part, the internally mounted in model groove has slide bar and transmission shaft, the sliding block has been cup jointed with the surface activity of slide bar to the transmission shaft, the sliding block is located the inside of model groove, one end of transmission shaft extends to one side of main part, the top fixedly connected with movable plate of transmission shaft, the movable plate is located the surface of main part, the sliding block extends to the surface of main part and carries out fixed connection with the movable plate, and the transmission shaft carries out threaded connection with the sliding block.

As an improved scheme, the lifting piece comprises an electric push rod arranged on the surface of the movable plate, a positioning arc plate is arranged at the top of the electric push rod, and the positioning arc plate can achieve the purposes of positioning and supporting a workpiece.

The utility model has the beneficial effects that:

According to the utility model, the round workpiece can be firmly clamped by the clamping assembly, and the surface of the rubber block has certain viscosity, so that the round workpiece can be adhered to the surface of the workpiece, when the rubber block is in contact with the workpiece, the adhesion effect can increase the contact force between objects, further increase the friction force, and the phenomenon that the workpiece can turn over during clamping can be prevented due to the characteristic of elastic deformation of the rubber block, so that the problem of lower precision is further solved.

According to the utility model, the locating assembly is arranged, so that the transmission shaft can be properly rotated according to the length of the workpiece to enable the transmission shaft to rotate, the purpose of locating the workpiece is achieved, the electric push rod is started to drive the locating arc plate to enable the workpiece to be adjusted to a proper height, the workpiece can reach the most accurate position, and the problem that the workpiece is warped or deformed and the machining precision is reduced due to the fact that the cylindrical workpiece is subjected to uneven stress in the clamping process is further solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

Fig. 1 is a schematic diagram of the overall structure of the clamping fixture for CNC machining.

Fig. 2 is a schematic diagram of a clamping assembly of the clamping fixture for CNC machining.

Fig. 3 is a structural representation of a clamping assembly of the clamping fixture for CNC machining of the present utility model.

Fig. 4 is a structural display view of a moving part and a clamping part of the clamping fixture for CNC machining.

FIG. 5 is a cross-sectional perspective view of the clamping fixture for CNC machining of the present utility model.

FIG. 6 is a schematic diagram of a positioning assembly of the clamping fixture for CNC machining.

Reference numerals illustrate:

1. A main body; 2. a clamping assembly; 21. a bearing block; 22. a positioning block; 23. a chute; 24. a moving member; 241. a clamping plate; 242. a slide block; 243. a sliding shaft; 244. a clamping member; 2441. a clamping block; 2442. a rubber block; 2443. a connecting groove; 2444. a groove; 2445. a fixing bolt; 25. a driving member; 251. a fixed block; 252. a nut; 253. a bolt; 3. a positioning assembly; 31. an adjusting member; 311. a transmission shaft; 312. a slide bar; 313. a sliding block; 314. a moving plate; 315. an I-shaped groove; 32. a lifting member; 321. an electric push rod; 322. and positioning an arc plate.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Example 1

Referring to fig. 1 to 4, for a first embodiment of the present utility model, there is provided a clamping fixture for CNC machining, the clamping fixture for CNC machining includes a main body 1, a clamping assembly 2 and a positioning assembly 3 are mounted on a surface of the main body 1, and the clamping assembly 2 is located at one side of the positioning assembly 3;

The clamping assembly 2 comprises a bearing block 21 arranged on the surface of a main body 1, a positioning block 22 is fixedly and slidingly connected to the surface of the bearing block 21, a circular array sliding groove 23 is formed in the positioning block 22, a moving part 24 is arranged in the sliding groove 23, a driving part 25 is arranged at the top of the positioning block 22, the moving part 24 comprises a clamping plate 241 movably connected to the surface of the bearing block 21, a sliding block 242 is movably sleeved on the surface of the clamping plate 241, a sliding shaft 243 is fixedly connected to the surface of the sliding block 242, the sliding shaft 243 is fixed in the sliding groove 23, a clamping part 244 is arranged at the other end of the clamping plate 241, the clamping part 244 comprises a clamping block 2441 arranged at one end of the clamping plate 241, a rubber block 2442 is arranged in the clamping block 2441, a connecting groove 2443 and a groove 2444 are formed in the clamping block 2441, the groove 2444 is formed in two sides of the connecting groove 2443, the clamping plate 241 is positioned in the connecting groove 2443 and is matched with the connecting groove 2444, a fixing bolt 2445 is movably sleeved on the surface of the clamping block 22, the clamping block 2441 is fixedly connected to the surface of the fixing bolt 2445, the clamping block 2441 and the fixing bolt 2445 is connected to the fixing block 2445 through the fixing block 2445, the fixing block 25 is connected to the surface of the fixing block 25 and is far away from the surface of the bearing block 252, and is connected with a nut 253 at the top of the fixing block 252 through the fixing bolt.

When the workpiece is located in the bearing block 21 and the positioning block 22, the bolt 253 can be screwed to drive the nut 252 to move and drive the positioning block 22 and the chute 23 to rotate, the chute 23 can slide along the surface of the clamping plate 241 through the sliding shaft 243 in the rotating process, the three groups of clamping plates 241 can be driven to move and enable one ends of the three groups of clamping plates 241 to be close to each other due to gravity, when the three groups of clamping blocks 2441 are in contact with the workpiece, the rubber block 2442 is preferentially contacted with the workpiece, the round workpiece can be clamped by continuously screwing the bolt 253, and therefore the round workpiece can be clamped.

Example 2

Referring to fig. 1-6, a second embodiment of the present utility model is shown, which differs from the first embodiment in that:

The locating component 3 is including being located the inside regulating part 31 of main part 1, the lifting part 32 is installed at the top of regulating part 31, regulating part 31 is including seting up the interior type groove 315 of main part 1, the internally mounted in type groove 315 has slide bar 312 and transmission shaft 311, the sliding block 313 has been cup jointed with the surface activity of slide bar 312 to transmission shaft 311, the sliding block 313 is located the inside of type groove 315, one end of transmission shaft 311 extends to one side of main part 1, the top fixedly connected with movable plate 314 of transmission shaft 311, movable plate 314 is located the surface of main part 1, the surface that the sliding block 313 extends to main part 1 carries out fixed connection with movable plate 314, lifting part 32 is including installing the electric putter 321 at movable plate 314 surface, location arc board 322 is installed at electric putter 321's top.

In the use process, place circular work piece on the surface of locating arc board 322, then the transmission shaft 311 makes its rotation according to the length of work piece is suitable, and drive slider 313 along the inside slip of industry groove 315, promote the one end of work piece and make its other end extend to the inside of clamping assembly 2 afterwards, thereby alright reach the location to the work piece, alright then the centre gripping to the work piece through clamping assembly 2, after the centre gripping, alright start electric putter 321 and drive locating arc board 322 and make the work piece adjust to suitable height, thereby alright make the work piece reach the most accurate position, further solved cylindrical work piece can receive inhomogeneous atress condition in the centre gripping process, lead to the work piece to produce warpage or deformation, cause the problem that machining precision descends.

The rest of the structure is the same as that of embodiment 1.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. Clamping anchor clamps are used in CNC processing, including main part (1), its characterized in that: the surface of the main body (1) is provided with a clamping assembly (2) and a positioning assembly (3), and the clamping assembly (2) is positioned at one side of the positioning assembly (3);

The clamping assembly (2) comprises a bearing block (21) arranged on the surface of the main body (1), a positioning block (22) is fixedly connected to the surface of the bearing block (21) in a sliding manner, a chute (23) in an annular array is formed in the positioning block (22), a moving part (24) is arranged in the chute (23), and a driving part (25) is arranged at the top of the positioning block (22);

The movable part (24) comprises a clamping plate (241) movably connected to the surface of the bearing block (21), a sliding block (242) is movably sleeved on the surface of the clamping plate (241), a sliding shaft (243) is fixedly connected to the surface of the sliding block (242), the sliding shaft (243) is fixed in the sliding groove (23), and a clamping part (244) is arranged at the other end of the clamping plate (241);

Clamping piece (244) is including installing grip block (2441) in grip block (241) one end, internally mounted of grip block (2441) has rubber block (2442), connecting groove (2443) and recess (2444) have been seted up to the inside of grip block (2441), recess (2444) are seted up in the both sides of connecting groove (2443), grip block (241) are located the inside of connecting groove (2443), and rather than the adaptation, recess (2444) are located the surface of locating piece (22), and rather than the adaptation, the surface mounting of grip block (2441) has gim peg (2445), grip block (2441) are connected through gim peg (2445).

2. The clamping fixture for CNC machining according to claim 1, wherein: the driving piece (25) comprises a fixed block (251) fixed on the surface of the bearing block (21), a bolt (253) is arranged in the fixed block (251), a nut (252) is connected to the surface of the bolt (253) and is far away from one end of the fixed block (251) in a threaded mode, and the nut (252) is located at the top of the positioning block (22) and is movably connected with the top of the positioning block.

3. The clamping fixture for CNC machining according to claim 2, wherein: the positioning assembly (3) comprises an adjusting piece (31) positioned in the main body (1), and a lifting piece (32) is arranged at the top of the adjusting piece (31).

4. The clamping fixture for CNC machining according to claim 3, wherein: the utility model discloses a movable adjusting piece, including adjusting piece (31), including seting up at inside model groove (315) of main part (1), the internally mounted of model groove (315) has slide bar (312) and transmission shaft (311), sliding block (313) have been cup jointed with the surface activity of slide bar (312) to transmission shaft (311), sliding block (313) are located the inside of model groove (315), one end of transmission shaft (311) extends to one side of main part (1), the top fixedly connected with movable plate (314) of transmission shaft (311), movable plate (314) are located the surface of main part (1), sliding block (313) extend to the surface of main part (1) and carry out fixed connection with movable plate (314).

5. The clamping fixture for CNC machining according to claim 4, wherein: the lifting piece (32) comprises an electric push rod (321) arranged on the surface of the movable plate (314), and a positioning arc plate (322) is arranged at the top of the electric push rod (321).