CN212735099U - Special-shaped workpiece end face pressing clamp - Google Patents

Abstract

The utility model discloses a heterotypic work piece terminal surface compresses tightly anchor clamps, including the anchor clamps chassis, be connected with the anchor clamps body on this anchor clamps chassis, be connected with the arm-tie through the pull rod on the anchor clamps chassis, this arm-tie is located press from both sides specific inner chamber, follow on the arm-tie press from both sides specific axial connection has hook type clamp plate, be connected with the locating plate on the specific outer terminal surface of anchor clamps, be equipped with the locating hole on this locating plate, this locating hole with press from both sides specific inner chamber and be linked together, the punishment of the position of the location terminal surface that corresponds the work piece on the locating plate has the support nail, and the portion of stretching into of this work piece the locating hole, the lower terminal surface of the location portion of work piece support on the support nail, the pull rod can drive at the removal in. The clamp is specially designed for the special-shaped workpiece, has a simple structure, is convenient to use, has a good clamping effect on the special-shaped workpiece, and ensures the processing precision of the workpiece.

Description

Special-shaped workpiece end face pressing clamp

Technical Field

The utility model relates to a machining technical field, concretely relates to heterotypic work piece terminal surface compresses tightly anchor clamps.

Background

In the machining process, the workpiece needs to be processed by processes of machining, milling and the like, and before machining and milling, the workpiece is generally fixed by a clamp and then correspondingly processed.

The existing workpiece clamps are arranged according to the specifications of workpieces and are mostly suitable for the workpieces with regular shapes, and for the special-shaped workpieces, because the shapes of the existing clamps are irregular, the existing clamps cannot be suitable for clamping the special-shaped workpieces, so that the clamps need to be designed according to the specific structures of the special-shaped workpieces.

Disclosure of Invention

To the technical problem that exists at present, the utility model provides a heterotypic work piece terminal surface compresses tightly anchor clamps to solve the problem among the prior art.

In order to achieve the purpose of the invention, the utility model provides the following technical scheme:

the utility model provides a heterotypic work piece terminal surface compresses tightly anchor clamps, includes the anchor clamps chassis, is connected with the anchor clamps body on this anchor clamps chassis, be connected with the arm-tie through the pull rod on the anchor clamps chassis, this arm-tie is located the specific inner chamber of anchor clamps, follow on the arm-tie the specific axial of anchor clamps is connected with hook type clamp plate, be connected with the locating plate on the specific outer terminal surface of anchor clamps, be equipped with the locating hole on this locating plate, this locating hole with the specific inner chamber of anchor clamps is linked together, the punishment of the position department that corresponds the location terminal surface of work piece on the locating plate has distributed the support nail, and the portion of stretching into of this work piece the locating hole, the lower terminal surface of the location portion of work piece supports on the support nail, the pull rod.

Above-mentioned technical scheme inserts the portion of stretching into of work piece during the use in the locating hole on the locating plate, and the tip that stretches into the portion simultaneously can stretch into the specific inner chamber of clamp, and the lower terminal surface of location portion can support on the support nail this moment, then the pull rod back-draw drives arm-tie and hook type clamp plate and makes axial displacement, and hook type clamp plate compresses tightly the outer terminal surface of work piece to press from both sides the work piece tightly, then the main shaft rotation carries out lathe work to the work piece. The clamp is specially designed for special-shaped workpieces, has a simple structure, is convenient to use, has a good clamping effect on the special-shaped workpieces, and ensures the processing precision of the workpieces.

Preferably, the pulling plate is connected with two hook-shaped pressing plates, and a central connecting line of the two hook-shaped pressing plates passes through a central line of the clamp body.

According to the scheme, the workpiece is symmetrically compressed by the two hook-shaped pressing plates, so that the compressing effect is better.

Preferably, the hook-shaped pressing plate is connected with the pull rod through a connecting block, and an adjusting pad is arranged at the end face of the hook-shaped pressing plate, which is in contact with the connecting block.

Preferably, the outer end face of the clamp body is connected with a supporting seat, the hook-shaped pressing plate penetrates through the supporting seat and then is connected with the connecting block, the supporting seat is provided with a positioning pin, the positioning pin extends along the radial direction of the clamp body, and the end part of the positioning pin can extend into the hook-shaped pressing plate.

This scheme, on the one hand hook type clamp plate pass the supporting seat, and hook type clamp plate is more firm at the axial displacement in-process like this, and on the other hand hook type clamp plate compresses tightly the back with the work piece, and the tip of dowel pin further fixes a position the hook type clamp plate in stretching into hook type clamp plate, improves the work piece and compresses tightly the effect, avoids appearing removing in the course of working.

Preferably, the center of the positioning plate deviates from the center of the fixture body, and a counterweight mechanism is arranged on one side of the fixture body, which is far away from the center of the positioning plate.

Preferably, the counterweight mechanism comprises an installation hole arranged on the clamp body, the center line of the installation hole is parallel to the center line of the clamp body, and a counterweight, a spring and a spring positioning block are sequentially installed in the installation hole.

According to the scheme, the whole weight of the balance clamp of the balance weight mechanism is utilized, the balance weight is replaced according to different workpieces to achieve the balance purpose, and the spring is used for adjusting the distance between different balance weights and the spring for positioning.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in inserting the locating hole on the locating plate with the portion of stretching into of work piece during the use, the tip of the portion of stretching into simultaneously can stretch into and press from both sides specific inner chamber, and the lower terminal surface of location portion can support on the support nail this moment, then pull rod pull-back drives arm-tie and hook type clamp plate and makes axial displacement, and hook type clamp plate can compress tightly the outer terminal surface of work piece to press from both sides the work piece tightly, then the main shaft rotation carries out lathe work to the work piece. The clamp is specially designed for the special-shaped workpiece, has a simple structure, is convenient to use, has a good clamping effect on the special-shaped workpiece, and ensures the processing precision of the workpiece.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view taken along line F-F in FIG. 1;

FIG. 3 is a sectional view taken along line A-A in FIG. 1;

FIG. 4 is a front view of a workpiece according to the present invention;

fig. 5 is a side view of fig. 4.

Detailed Description

The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

Fig. 4 and 5 show a workpiece 9 to be machined and clamped, and the workpiece 9 includes an axially extending protruding portion 91 and a positioning portion 92 connected to an end of the protruding portion 91.

The special-shaped workpiece end face pressing clamp shown in the attached drawings 1-3 is used for clamping and positioning workpieces in the attached drawings 4 and 5 and comprises a clamp base plate 1, a clamp body 5 is connected onto the clamp base plate 1, the clamp base plate 1 is connected with a pull rod 2, the pull rod 2 is connected with a pull plate 3 through a pull rod connecting sleeve 21, the pull plate 3 is located in an inner cavity of the clamp body 5, two hook-shaped pressing plates 4 are connected onto the pull plate 3 along the axial direction of the clamp body 5, and the central connecting line of the two hook-shaped pressing plates 4 passes through the central line of the clamp body 5. The hook-shaped pressing plate 4 is connected with the pull rod 2 through a connecting block 31, and an adjusting pad 32 is arranged at the end face of the hook-shaped pressing plate 4, which is in contact with the connecting block 31.

Be connected with supporting seat 43 on the outer terminal surface of the anchor clamps body 5, hook type clamp plate 4 passes and links to each other with connecting block 31 behind this supporting seat 43, be equipped with first mounting hole on the supporting seat 43, the central line of this first mounting hole is mutually perpendicular with the central line of anchor clamps body 5, be equipped with first locating hole on hook type clamp plate 4's side, this first locating hole and first mounting hole intercommunication are installed to work piece 9 when the compact state in first mounting hole, this locating pin 45 is installed to the first mounting hole, this locating pin 45's tip can stretch into in the hook type clamp plate 4.

The outer end face of the clamp body 5 is connected with a positioning plate 6, the positioning plate 6 is in a rectangular structure and is positioned between the two hook-shaped pressing plates 4, the positioning plate 6 is provided with a positioning hole 63, the positioning hole 63 is communicated with the inner cavity of the clamp body 5, the central line of the positioning hole 63 deviates from the central line of the clamp body 5, a trimming pin 61 is arranged on the positioning plate 6 corresponding to the center of the clamp body 5, and the connecting line of the two hook-shaped pressing plates 4 passes through the center of the trimming pin 61. Support pins 62 are distributed on the positioning plate 6 at positions corresponding to the positioning end surfaces of the workpieces 9, and after the protruding portions 91 of the workpieces 9 protrude into the positioning holes 63, the lower end surfaces of the positioning portions 92 of the workpieces 9 abut against the support pins 62.

One side of keeping away from the center of locating plate 6 on anchor clamps body 5 is equipped with two counter weight mechanisms, the contained angle between two counter weight mechanisms is 60, counter weight mechanism specifically is including setting up the installation blind hole 50 on anchor clamps body 5, the central line of this installation blind hole 50 parallels with the central line of anchor clamps body 5, install balancing piece 71 in proper order in installation blind hole 50, spring 72 and spring locating piece 73, balancing piece 71, spring 72 and spring locating piece 73 pass through countersunk screw and link to each other with anchor clamps body 5, balancing piece 71 is installed in installation blind hole 50 bottom, spring 72 one end and balancing piece 71 are supported, the other end and spring locating piece 73 are supported, in the use, balancing piece 71 can be changed or the stack use according to particular situation.

Insert the locating hole 63 on the locating plate 6 with the portion 91 that stretches into of work piece 9 during the use, the tip that stretches into portion 91 simultaneously can stretch into the inner chamber of the anchor clamps body 5, the lower terminal surface of location portion 92 can support on supporting nail 62 this moment, then pull rod 2 draws backward, drive arm-tie 3 and hook type clamp plate 4 and make axial displacement, hook portion 41 until hook type clamp plate 4 compresses tightly the outer terminal surface of work piece 9, thereby press from both sides work piece 9 tightly, the tip of locating pin 45 stretches into hook type clamp plate 4 this moment and further fixes a position, then main shaft 8 is rotatory to carry out lathe work to the work piece. After the machining is finished, when the oil cylinder is loosened, the end part of the positioning pin 45 is withdrawn from the hook-shaped pressing plate 4, and the pull rod 2 moves forwards to enable the hook-shaped pressing plate 4 to be separated from the outer end face of the workpiece.

The foregoing describes preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (6)

1. The utility model provides a heterotypic work piece terminal surface compresses tightly anchor clamps which characterized in that: including anchor clamps chassis (1), be connected with anchor clamps body (5) on this anchor clamps chassis (1), be connected with arm-tie (3) through pull rod (2) on anchor clamps chassis (1), this arm-tie (3) are located the inner chamber of anchor clamps body (5), follow on arm-tie (3) the axial of anchor clamps body (5) is connected with hook type clamp plate (4), be connected with locating plate (6) on the outer terminal surface of anchor clamps body (5), be equipped with locating hole (63) on this locating plate (6), this locating hole (63) with the inner chamber of anchor clamps body (5) is linked together, the punishment of the position department that corresponds the location terminal surface of work piece (9) on locating plate (6) has distributed support nail (62), and the portion of stretching into (91) of this work piece (9) stretch into locating hole (63), the lower terminal surface of the location portion (92) of work piece (9) supports on support nail (62), pull rod (2) can drive in the removal process hook type clamp plate (4) advance work piece (9) And (5) compressing the rows.

2. The special-shaped workpiece end face pressing clamp according to claim 1, characterized in that: the pulling plate (3) is connected with two hook-shaped pressing plates (4), and the central line of the two hook-shaped pressing plates (4) passes through the central line of the clamp body (5).

3. The special-shaped workpiece end face pressing clamp according to claim 2, characterized in that: the hook-shaped pressing plate (4) is connected with the pull rod (2) through a connecting block (31), and an adjusting pad (32) is arranged at the end face where the hook-shaped pressing plate (4) is in contact with the connecting block (31).

4. The special-shaped workpiece end face pressing clamp according to claim 3, characterized in that: the outer end face of the clamp body (5) is connected with a supporting seat (43), the hook-shaped pressing plate (4) penetrates through the supporting seat (43) and then is connected with the connecting block (31), the supporting seat (43) is provided with a positioning pin (45), the positioning pin (45) extends along the radial direction of the clamp body (5), and the end part of the positioning pin (45) can stretch into the hook-shaped pressing plate (4).

5. The special-shaped workpiece end face pressing clamp according to any one of claims 1 to 4, characterized in that: the center of the positioning plate (6) deviates from the center of the clamp body (5), and a counterweight mechanism is arranged on one side, far away from the center of the positioning plate (6), of the clamp body (5).

6. The special-shaped workpiece end face pressing clamp according to claim 5, characterized in that: the counterweight mechanism comprises an installation hole (50) arranged on the clamp body (5), the center line of the installation hole (50) is parallel to the center line of the clamp body (5), and a balance block (71), a spring (72) and a spring positioning block (73) are sequentially installed in the installation hole (50).

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