CN211867228U

CN211867228U - Tool clamp for annular workpiece

Info

Publication number: CN211867228U
Application number: CN202020507315.6U
Authority: CN
Inventors: 李志强; 汤鑫超; 李德均
Original assignee: Xiamen Jiajiada Machinery Co ltd
Current assignee: Xiamen Jiajiada Machinery Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-11-06
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a tool clamp for annular workpieces, which relates to the technical field of tool clamps and comprises a base, wherein the upper surface of the base is provided with a groove for horizontally placing the annular workpieces on the base, the depth of the groove is less than half of the thickness of the annular workpieces, the base is also provided with an outer clamp which is positioned outside the groove and is used for clamping and fixing the annular workpieces in the groove, and the outer clamp is abutted against the outer side of the annular workpieces when clamping the annular workpieces; the utility model discloses have the effect that can assist CNC machining center to detach the inboard burr of annular work piece.

Description

Tool clamp for annular workpiece

Technical Field

The utility model belongs to the technical field of the frock clamp technique and specifically relates to a frock clamp for annular work piece is related to.

Background

At present, most of workpieces are molded by casting through a mold, after the mold is molded by casting, burrs are formed at the position of a gap between an upper mold and a lower mold or between a left mold and a right mold of the workpiece, and therefore, in order to ensure the appearance quality of the workpiece, the burrs on the surface of the workpiece are required to be removed after the workpiece is molded by casting.

In the prior art, a polishing machine is generally used for polishing the surface of a workpiece, or a CNC (computer numerical control) machining center is used for turning and milling the surface of the workpiece to achieve the effect of removing burrs on the surface of the workpiece, so that automatic or semi-automatic machining can be adopted, and the labor cost cannot be too high.

However, many existing workpieces are arranged in a ring shape as shown in fig. 1, and such ring-shaped workpieces are therefore symmetrical in the upper and lower sides, so that after the ring-shaped workpieces are cast and molded by using a mold, burrs are formed on the inner side and the outer side of the ring-shaped workpieces, and the burrs on the outer side of the ring-shaped workpieces can be removed by directly using a polishing machine or a CNC machining center, but the inner side of the ring-shaped workpieces has a small internal space, so that the burrs on the inner side of the ring-shaped workpieces cannot be removed by directly using equipment, and the burrs on the inner side of the ring-shaped workpieces can only be removed by a file held by a worker, thereby causing production and manpower consumption of such ring-shaped workpieces, and low production efficiency, and a large potential.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can assist CNC machining center detach a frock clamp for annular workpiece of the inboard burr of annular workpiece not enough to prior art exists.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a frock clamp for annular workpiece, includes the base, the upper surface of base is provided with the type groove that supplies annular workpiece level to place on the base, the degree of depth in type groove is less than half of annular workpiece thickness, still be provided with on the base and be located the type groove outside in order to be used for pressing from both sides the outside anchor clamps that are fixed in type groove with annular workpiece, contradict with annular workpiece's the outside when outside anchor clamps press from both sides annular workpiece.

By adopting the technical scheme, when the burrs on the inner side of the annular workpiece are required to be removed, the base is only required to be installed on the CNC machining center, then the workpiece is placed in the groove, the annular workpiece is convenient to rapidly position and place on the base through the groove, finally the outer side of the annular workpiece is clamped by the outer side clamp, and finally the burrs on the inner side of the annular workpiece are removed by the R-angle cutter, the milling cutter and other corresponding cutters of the CNC machining center.

The present invention may be further configured in a preferred embodiment as: the outer side fixture comprises a first air cylinder arranged on the base and a first pressing piece arranged on a piston rod of the first air cylinder, and the first pressing piece is located on the upper side of the base.

Through adopting above-mentioned technical scheme, drive first pressfitting downstream through first cylinder and can realize the automatically clamped of annular work piece until the edge of first pressfitting and the outside butt of annular work piece.

The present invention may be further configured in a preferred embodiment as: the outer side fixture is provided with a plurality of pieces, the annular grooves are circumferentially arranged, each first cylinder is arranged to be a corner cylinder, one end of each first pressing piece is connected with a piston rod of each first cylinder, and the other end of each first pressing piece is used for abutting against and clamping the annular workpiece.

Through adopting above-mentioned technical scheme, when the piston rod of first cylinder was ejecting, set up to the one end orientation that the first cylinder of corner cylinder can drive first presswork and annular work piece conflict rotates towards the direction of keeping away from annular work piece to be difficult for when making annular work piece take out or install and first presswork piece waterproof interference, ensure annular work piece's processing safety.

The present invention may be further configured in a preferred embodiment as: the clamping device is characterized by further comprising an inner side clamp which is arranged in the groove and used for clamping and fixing the annular workpiece in the groove, and the inner side clamp is abutted against the inner side of the annular workpiece when clamping the annular workpiece.

Through adopting above-mentioned technical scheme, press from both sides the inboard of pressing from both sides tight annular work piece through inboard anchor clamps, then remove the tight effect of clamp of outside anchor clamps to annular work piece for CNC machining center can clear away the outside burr of annular work piece, effectively improves this frock clamp's function.

The present invention may be further configured in a preferred embodiment as: the inboard anchor clamps are including setting up on the base and being located the regional second cylinder in type groove inboard and setting up in the second presswork of second cylinder piston rod, the second presswork is located the type groove directly over.

Through adopting above-mentioned technical scheme, drive the second pressfitting through the second cylinder and move down until the edge of second pressfitting and the inboard butt of annular work piece can realize the automatically clamped of annular work piece.

The present invention may be further configured in a preferred embodiment as: the piston rod of the second cylinder is provided with a connecting column, the upper end of the connecting column is provided with a clamping groove which is in a shape like a Chinese character 'tu' in cross section and two ends of the clamping groove are communicated with the side wall of the connecting column, and the lower end of the second pressed part is provided with a clamping rod which is clamped in the clamping groove.

By adopting the technical scheme, through the cooperation between the clamping groove arranged on the connecting column and the clamping rod arranged on the second pressed piece, when an operator installs or takes out the annular workpiece and the CNC machining center to remove burrs on the inner side of the annular workpiece, the operator can take out the second pressed piece to achieve the effect of preventing the second pressed piece from interfering with the workpiece or the working shaft of the CNC machining center.

The present invention may be further configured in a preferred embodiment as: and a positioning pin is arranged in one end of the clamping groove, and when the clamping rod is inserted into the clamping groove, the clamping rod is abutted against the positioning pin.

Through adopting above-mentioned technical scheme, when the staff installed the second pressfitting on the spliced pole, utilized the locating pin can restrict the mounted position of joint pole, the quick location installation of the second pressfitting of being convenient for.

The present invention may be further configured in a preferred embodiment as: the upper surface of the second pressing piece is also provided with a handle.

Through adopting above-mentioned technical scheme, be convenient for the staff through the handle and take the second pressfitting, and can avoid being cut by the sharp edge of second pressfitting.

To sum up, the utility model discloses a following at least one useful technological effect:

the device can assist a CNC (computer numerical control) machining center in removing burrs on the inner side of the annular workpiece, reduce the working strength of workers and improve the personal safety of the workers;

the tool clamp can assist a CNC (computer numerical control) machining center in removing burrs on the outer side of the annular workpiece, so that the tool clamp has stronger functions, and meanwhile, the secondary machining efficiency of the annular workpiece can be improved;

simple structure, convenient implementation and easy popularization.

Drawings

FIG. 1 is a schematic view of a structure of an annular workpiece;

FIG. 2 is a schematic structural diagram of the present embodiment;

FIG. 3 is a schematic cross-sectional view of the present embodiment;

fig. 4 is a schematic view showing the installation of the second pressing member of the present embodiment.

Reference numerals: 1. a base; 11. a profiled groove; 2. an outer clamp; 21. a first cylinder; 22. a first pressed member; 3. an inner clamp; 31. a second cylinder; 32. connecting columns; 321. a card slot; 322. positioning pins; 33. a second pressed member; 331. a clamping and connecting rod; 332. a handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to fig. 2 and fig. 3, a tooling fixture for an annular workpiece disclosed by the present invention comprises a base 1 installed on a CNC machining center worktable for placing the annular workpiece, an outer side fixture 2 arranged on the base 1 for supporting the outer side of the annular workpiece, and an inner side fixture 3 arranged on the base 1 for supporting the inner side of the annular workpiece; the base 1 is provided with a groove 11 for positioning and placing the annular workpiece, the depth of the groove 11 is smaller than the thickness of the annular workpiece, the outer clamps 2 are arranged on the outer sides of the groove 11, the inner clamps 3 are arranged on the inner sides of the groove 11, and when the annular workpiece is placed in the groove 11, the part of the annular workpiece provided with burrs is higher than the upper surface of the base 1.

Referring to fig. 2 and 3, each of the outer clamps 2 includes a first cylinder 21 having a cylinder body fixed to the base 1 and a piston rod facing upward, and a first pressed member 22 fixed to the first cylinder 21; wherein, first cylinder 21 sets up to the corner cylinder, wherein one end of first pressfitting 22 is connected with the piston rod of first cylinder 21, when the outside of tight annular work piece is pressed to needs suppression, only need control the piston rod of first cylinder 21 and rotate so that the one end that first pressfitting 22 kept away from the piston rod rotates towards annular work piece place orientation, then drive first pressfitting 22 through first cylinder 21 and move down, make the one end that first pressfitting 22 kept away from first cylinder 21 can support the outside of annular work piece, thereby reach the effect of compressing tightly solid fixed ring shape work piece, at this moment, can directly utilize CNC machining center to clear away from the burr that is located annular work piece inboard.

Referring to fig. 2 and 3, the inner clamp 3 includes a second cylinder 31 with a cylinder fixed in the base 1 and a piston rod upward, and a second pressing member 33 horizontally disposed on the piston rod of the second cylinder 31; the second pressed part 33 is detachably connected with the piston rod of the second cylinder 31 in a clamping manner, and when the annular workpiece needs to be installed or taken out or burrs on the inner side of the annular workpiece need to be removed, a worker needs to take out the second pressed part 33 to prevent the second pressed part 33 from interfering with the annular workpiece or a cutter of a CNC (computer numerical control) machining center; when burrs on the outer side of the annular workpiece need to be removed, the second pressing piece 33 is driven to move downwards only by driving the second air cylinder 31, and the outer edge of the second pressing piece 33 can be abutted against the inner side of the annular workpiece.

As shown in fig. 3 and 4, a connecting column 32 is disposed on the piston rod of the second cylinder 31, and a clamping rod 331 clamped with the connecting column 32 is disposed on the lower surface of the second pressed part 33; the upper end of the connecting column 32 is provided with a clamping groove 321 with a convex-shaped cross section, the clamping rod 331 is clamped in the clamping groove 321, the left end and the right end of the clamping groove 321 are communicated with the outer wall of the connecting column 32, the upper side of the clamping groove 321 is communicated with the upper surface of the connecting column 32, and one end of the clamping groove 321 is also provided with a positioning pin 322 for limiting the position of the clamping rod 331; wherein, a handle 332 for the worker to take the second pressed member 33 is further provided on the upper surface of the second pressed member 33.

As shown in fig. 3 and 4, the connecting column 32 is in a polygonal column shape, and when the lower end of the connecting column 32 is inserted into the base 1, the connecting column 32 is in a polygonal shape, so that the connecting column 32 can be prevented from deflecting in the moving process, and when the second pressing member 33 is mounted on the connecting column 32, the shape and position of the second pressing member 33 can correspond to the inner side of the annular workpiece.

The implementation principle of the embodiment is as follows:

when burrs on the inner side and the outer side of the annular workpiece need to be removed, the tool clamp is firstly installed on a CNC (computer numerical control) machining center, then the second pressing piece 33 is taken down, the annular workpiece is placed in the groove 11, and finally the outer side clamp 2 is controlled to tightly press the outer side of the annular workpiece, so that the CNC machining center can be controlled to remove the burrs on the inner side of the annular workpiece; after the burrs on the inner side of the annular workpiece are removed, a pressing piece is installed on the connecting column 32 by a worker, then the inner side clamp 3 which is completely assembled is controlled to compress the inner side of the annular workpiece, and then the outer side clamp 2 is controlled to be separated from the annular workpiece, so that the CNC machining center can be controlled to remove the burrs on the outer side of the annular workpiece.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a frock clamp for annular work piece which characterized in that: including base (1), the upper surface of base (1) is provided with type groove (11) that supply annular work piece level to place on base (1), the degree of depth in type groove (11) is less than half of annular work piece thickness, still be provided with on base (1) and be located type groove (11) outside in order to be used for pressing from both sides the outside anchor clamps (2) that are fixed in type groove (11) with annular work piece, conflict with annular work piece's the outside when outside anchor clamps (2) press from both sides tight annular work piece.

2. A tooling clamp for annular workpieces according to claim 1 wherein: the outer side clamp (2) comprises a first air cylinder (21) arranged on the base (1) and a first pressing piece (22) arranged on a piston rod of the first air cylinder (21), and the first pressing piece (22) is located on the upper side of the base (1).

3. A tooling fixture for annular workpieces according to claim 2, wherein: the outer side fixture (2) is provided with a plurality of pressing pieces, the annular grooves (11) are circumferentially arranged, each first cylinder (21) is arranged to be a corner cylinder, one end of each pressing piece (22) is connected with a piston rod of each first cylinder (21), and the other end of each pressing piece is used for abutting against and clamping an annular workpiece.

4. A tooling clamp for annular workpieces according to claim 1 wherein: the clamping device is characterized by further comprising an inner side clamp (3) arranged in the groove (11) and used for clamping and fixing the annular workpiece in the groove (11), wherein the inner side clamp (3) is abutted against the inner side of the annular workpiece when clamping the annular workpiece.

5. A tooling clamp for annular workpieces according to claim 4 wherein: the inner side clamp (3) comprises a second cylinder (31) which is arranged on the base (1) and is located in the inner side area of the groove (11) and a second pressing piece (33) which is arranged on a piston rod of the second cylinder (31), wherein the second pressing piece (33) is located right above the groove (11).

6. A tooling clamp for annular workpieces according to claim 5 wherein: be provided with spliced pole (32) on the piston rod of second cylinder (31), the upper end of spliced pole (32) is provided with transversal draw-in groove (321) of personally submitting "protruding" word shape setting and both ends all with spliced pole (32) lateral wall intercommunication, the lower extreme of second pressfitting (33) is provided with and joints joint pole (331) in draw-in groove (321).

7. A tooling clamp for annular workpieces according to claim 6 wherein: a positioning pin (322) is arranged at one end of the clamping groove (321), and when the clamping rod (331) is inserted into the clamping groove (321), the clamping rod (331) is abutted against the positioning pin (322).

8. A tooling clamp for annular workpieces according to claim 5 wherein: the upper surface of the second pressing member (33) is also provided with a handle (332).