CN211805015U - Clamp for realizing three-side processing of same station of workpiece - Google Patents

Abstract

The utility model provides a fixture for realizing three-side processing of workpieces at the same station, which comprises a square base, a fixture pressing plate and a conical positioning pin, wherein the fixture pressing plate and the conical positioning pin are arranged on the square base; a workpiece placing space is formed between the two conical positioning pins; the clamp pressing plate is oppositely arranged on the outer side of the conical positioning pin, is far away from the workpiece and is connected with the square base; positioning reference holes are respectively formed in one side of the first end face, the upper right-angle intersection of the second end face and the upper right-angle intersection of the third end face; and cross-shaped pressing plate grooves are formed in the third end surface and the end surface opposite to the third end surface. The clamp enables a workpiece to be clamped and positioned at one time, and improves the original products which are clamped for three times and processed by three stations into the products which are clamped at one time and processed by one station, so that the production efficiency and the product quality are improved.

Description

Clamp for realizing three-side processing of same station of workpiece

Technical Field

The utility model relates to a milling process technical field particularly, relates to an anchor clamps that realize trilateral processing of work piece homopolar.

Background

In the existing milling process, when milling process is required to be carried out on three adjacent different surfaces of a workpiece with a complex structure, the workpiece and a tool fixture are required to be disassembled, then another adjacent surface of the workpiece is upwards arranged, then clamping and positioning are carried out, and the surface structures of three different positions are sequentially processed by adopting the mode. However, this method causes great inconvenience to the processing, or a high-grade numerical control machine tool with multi-axis linkage is used, but the processing cost is too high, and general enterprises cannot bear the processing cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be that this anchor clamps make a clamping location of work piece, through the form of upset anchor clamps, with the product of original cubic clamping, three station processing, improve for a clamping, the whole contents of station processing part, improved production efficiency and product quality, reduced manufacturing cost.

In order to solve the problems, the utility model provides a clamp for realizing the simultaneous three-surface processing of workpieces, which comprises a square base, a clamp pressing plate and a conical positioning pin, wherein the clamp pressing plate and the conical positioning pin are arranged on the square base,

the square base also comprises a first end face, a second end face and a third end face which are connected with each other;

the conical positioning pins are symmetrically arranged on the first end face and fixedly connected with the square base, and a workpiece placing space is formed between the two conical positioning pins;

the clamp pressing plate is oppositely arranged on the outer side of the conical positioning pin, is far away from the workpiece and is connected with the square base;

positioning reference holes are respectively formed in one side of the first end face, the upper right-angle intersection of the second end face and the upper right-angle intersection of the third end face;

and cross-shaped pressing plate grooves are formed in the third end surface and the end surface opposite to the third end surface.

Optionally, the first end face, the second end face and the opposite end face thereof are provided with concave tapered tool testing grooves.

Optionally, hollow cavities are symmetrically arranged on the second end face and the opposite end face of the second end face, and the hollow cavities are communicated with the concave conical cutter testing grooves arranged on the second end face.

Optionally, the clamp comprises a bolt and a cushion block, a waist-shaped through hole is formed in the middle of the clamp pressing plate, a threaded hole matched with the bolt is formed in the clamp pressing plate, the bolt penetrates through the waist-shaped through hole and the threaded hole to achieve connection of the clamp pressing plate and the square base, the clamp pressing plate is suitable for moving transversely along the axis direction of the waist-shaped through hole, and the cushion block is arranged between the clamp pressing plate and the square base.

Optionally, the first end surface includes a first side provided with the positioning reference hole and a second side opposite to the first side, and the first end surface is inclined from the second side to the first side.

Optionally, in a direction parallel to the axis of the positioning reference hole on the second end face, the depth of the concave conical test groove is smaller than the width of the hollow cavity.

Optionally, the axes of the positioning reference holes on the second end face intersect with the axes of the positioning reference holes on the first end face and the third end face, respectively.

Optionally, a projection of one end of the clamp pressing plate, which is close to the workpiece, on the first end surface is an isosceles trapezoid, and a narrow side width of the isosceles trapezoid is smaller than a groove width of the workpiece.

Optionally, the milling machine further comprises a pressing plate, wherein the pressing plate is suitable for being fixedly arranged on a milling machine workbench and extends into the cross-shaped pressing plate groove.

Optionally, the milling machine further comprises a support column, wherein the support column is suitable for being arranged between the pressure plate and the milling machine workbench.

The utility model discloses an improvement to anchor clamps has reached to make the clamping location of work piece once, through the form of upset anchor clamps, with the product of original cubic clamping, three station processing, improves for clamping, the whole contents of a station processing part, has improved production efficiency and product quality, has reduced manufacturing cost's technological effect. In addition, in the processing process, the square body structure is used as the base, and the characteristic that the three side surfaces of the square body are perpendicular to each other is utilized, so that after the complex workpiece is fixed on the base, in the process of mutual overturning in the processing process, the mutual position relation of the three processed surfaces is always unchanged, and the processing precision of the workpiece is further ensured.

Drawings

Fig. 1 is a front view of a fixture for processing three surfaces of a workpiece in the same station according to an embodiment of the present invention;

fig. 2 is a top view of the fixture for three-side processing of the same station of the workpiece according to the embodiment of the present invention;

fig. 3 is an isometric view of a fixture for three-sided machining of a workpiece in the same station according to an embodiment of the present invention;

fig. 4 is a first coordinate system processing diagram of the fixture for three-side processing of the same station of the workpiece according to the embodiment of the present invention;

fig. 5 is a second coordinate system processing diagram of the fixture for three-side processing of the same station of the workpiece according to the embodiment of the present invention;

fig. 6 is a third coordinate system processing diagram of the fixture for processing three surfaces of the workpiece at the same station according to the embodiment of the present invention.

Description of reference numerals:

1-a square base; 11-a first end face; 12-a second end face; 13-a third end face; 2-a clamp pressing plate; 21-bolt; 22-cushion block; 3-a conical locating pin; 4-positioning a reference hole; 5-a cross-shaped pressing plate groove; 51-a platen; 52-support column; 6-concave tapered test cutter groove; 7-hollowing out the cavity; a-a workpiece; b-cutting tool.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the forward direction of "X" in the drawings represents the right direction, and correspondingly, the reverse direction of "X" represents the left direction; the forward direction of "Y" represents the forward direction, and correspondingly, the reverse direction of "Y" represents the backward direction; the forward direction of "Z" represents the upward direction, and correspondingly, the reverse direction of "Z" represents the downward direction, and the terms "X", "Y", "Z", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings of the specification, and are merely for convenience of description and simplicity of description, but 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. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 3, the workpiece a includes a bottom plate and two side plates vertically arranged, a groove is formed between the two side plates, and the upper ends of the side plates are bent to form a flanging.

As shown in fig. 1 to 6, the utility model provides a fixture for realizing three-side processing of a workpiece at the same station, which comprises a square base 1, a fixture pressing plate 2 and a conical positioning pin 3 on the square base 1, wherein the square base 1 further comprises a first end surface 11, a second end surface 12 and a third end surface 13 which are connected with each other; the conical positioning pins 3 are symmetrically arranged on the first end surface 11 and are fixedly connected with the square base 1, and a workpiece A placing space is formed between the two conical positioning pins 3; the clamp pressing plate 2 is oppositely arranged on the outer side of the conical positioning pin 3, is far away from the workpiece A and is connected with the square base 1; positioning reference holes 4 are respectively arranged at the right-angle intersection at one side of the first end surface 11, the upper part of the second end surface 12 and the upper part of the third end surface 13; the third end face 13 and the end face opposite to the third end face 13 are provided with a cross-shaped pressing plate groove 5.

After the clamp of the embodiment is adopted, the workpiece A is clamped and positioned once, and the original products processed by three times of clamping and three stations are improved into the products processed by one time of clamping and one station through the form of turning the clamp, so that the production efficiency and the product quality are improved, and the technical effect of reducing the production cost is achieved. In addition, in the processing process, the square body structure is used as the base, and the characteristic that the three side surfaces of the square body are perpendicular to each other is utilized, so that after the complex workpiece A is fixed on the base, in the process of mutual overturning in the processing process, the mutual position relation of the three processed surfaces is always unchanged, and the processing precision of the workpiece A is further ensured.

Preferably, the first end surface 11, the second end surface 12 and the opposite end surfaces are provided with concave conical test cutter grooves 6; thereby, the concave tapered tool groove 6 is used for positioning the surface to be machined of the workpiece a before machining.

The concave conical test tool groove 6 is designed to be matched with a tool B, so that the tool B can conveniently perform tool setting before processing, the tool B is prevented from directly processing a workpiece A to cause tool setting position deviation, the workpiece A is damaged or the tool B is accidentally injured, specifically, as shown in fig. 2, the concave conical test tool groove 6 on the second end surface 12 and the opposite end surface thereof are oppositely arranged, and therefore, the tool setting of the tool B starts from the position when the tool B works.

Preferably, hollow cavities 7 are further symmetrically arranged on the second end face 12 and the opposite end face thereof, and the hollow cavities 7 are communicated with the concave conical cutter testing grooves 6 arranged on the second end face 12. Thereby, under the action of the hollow-out cavity 7, the cutter can conveniently run into the concave conical cutter testing groove 6 on the second end surface 12 and the opposite end surface.

The hollow cavity 7 is formed by the second end face 12 and the opposite end face thereof by being recessed downwards from the edge, the specific shape is determined according to the actual requirement, and the cross section is generally rectangular.

Preferably, the clamp comprises a bolt 21 and a cushion block 22, a waist-shaped through hole is formed in the middle of the clamp pressing plate 2, a threaded hole matched with the bolt 21 is formed in the clamp pressing plate 2, the bolt 21 penetrates through the waist-shaped through hole and the threaded hole to achieve connection of the clamp pressing plate 2 and the square base, the clamp pressing plate 2 is suitable for moving transversely along the axis direction of the waist-shaped through hole, and the cushion block 22 is arranged between the clamp pressing plate 2 and the square base. This enables the work a to be fixed to the first end surface 11.

Wherein, the setting of waist type through-hole mainly is for anchor clamps splint 2 can move along waist type through-hole, and from this, two anchor clamps splint 2 play the effect of pressing from both sides tight work piece A. Meanwhile, the conical positioning pin 3 can not only position the placing position of the workpiece, but also play a role in supporting the clamp pressing plate 2.

Preferably, the first end face 11 includes a first side provided with the positioning reference hole 4 and a second side opposite to the first side, and the first end face 11 is inclined from the second side to the first side.

Preferably, the depth of the concave conical test groove 6 in the axial direction parallel to the positioning reference hole 4 on the second end surface 12 is smaller than the width of the hollow cavity 7. This restricts the cutting amount at the time of trial cutting.

Specifically, the depth of the concave tapered tool groove 6 is 1/3 to 1/4 of the width of the hollow cavity 7. The specific situation is determined according to actual requirements.

Preferably, the axes of the positioning reference holes 4 on the second end face 12 intersect with the axes of the positioning reference holes 4 on the first end face 11 and the third end face 13, respectively. Therefore, the clamp is more uniformly stressed.

Specifically, the axes of the positioning reference holes 4 on the crossed right angles of the first end face 11, the second end face 12 and the third end face 13 are intersected, therefore, the positioning reference holes 44 enable the stress of the fixture to be more uniform, when the workbench rotates, the square base 11 is driven to rotate together by matching the positioning reference holes 44 with the pressing plate 5151 to combine the characteristics of the side surfaces of the square base 11 in a mutually perpendicular mode, the effect that the mutual positions of the processed surfaces are invariable all the time in the turning process is achieved, the purpose that the processing is completed at all the positions of the workpiece A at the same station is guaranteed, and finally the working efficiency is improved.

Preferably, the projection of one end of the clamp pressing plate 2 close to the workpiece a on the first end surface 11 is an isosceles trapezoid, and the width of the narrow side of the isosceles trapezoid is smaller than the groove width of the workpiece a. The structure of the first end face is designed in such a way, the size is reduced, the workpiece A can be conveniently stretched into the groove, the clamping effect is improved, the conical positioning pin 3 is conveniently matched, and the stable support of the conical positioning pin 3 on the clamp pressing plate 2 is realized.

Preferably, the milling machine further comprises a pressing plate 51, wherein the pressing plate 51 is suitable for being fixedly arranged on a milling machine workbench, and the pressing plate 51 extends into the cross-shaped pressing plate groove 5.

Square body base 1 links to each other with the milling machine workstation through 5 cooperation clamp plates 51 in cross clamp plate groove, place complicated work piece A in the space of placing that forms between two circular cone locating pins 3, utilize the anchor clamps clamp plate 2 that sets up in the circular cone locating pin 3 outside to fix complicated work piece A, because the one end that anchor clamps clamp plate 2 is close to work piece A is isosceles trapezoid at the projection of first terminal surface 11, isosceles trapezoid narrow limit width is less than work piece A's width, thereby can accomplish to deepen into work piece A's the space with clamp plate 51 better fix and avoid work piece A to appear the displacement in the course of working and cause the result that the machining precision reduces.

Preferably, a support column 52 is further included, the support column 52 being adapted to be disposed between the platen 51 and the milling machine table. Thereby, the pressing plate 51 is easily supported by the supporting columns 52, thereby urging the pressing plate 51 to fit the cross-shaped pressing plate groove 5.

Refer to fig. 4, fig. 5, fig. 6 and can see that when work piece a is fixed in on the anchor clamps add man-hour, can set for different coordinate systems according to square body base 1's rotation angle and work piece a's the different settings of machined surface, be first coordinate system, second coordinate system and third coordinate system respectively, above-mentioned coordinate system can let the better definite work piece a machined position of processor, simultaneously also more clear reflect the perpendicular characteristics on each limit of square body base also indirect prove the utility model discloses the technological effect that reaches.

Finally, it should be noted that: although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. The above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A fixture for realizing three-side processing of a workpiece at the same station is characterized by comprising a square base (1), a fixture pressing plate (2) and a conical positioning pin (3) which are arranged on the square base (1),

the square base (1) further comprises a first end face (11), a second end face (12) and a third end face (13) which are connected with each other;

the conical positioning pins (3) are symmetrically arranged on the first end face (11) and are fixedly connected with the square base (1), and a workpiece placing space is formed between the two conical positioning pins (3);

the clamp pressing plate (2) is oppositely arranged on the outer side of the conical positioning pin (3), is far away from the workpiece and is connected with the square base (1);

positioning reference holes (4) are respectively arranged at the right-angle intersection of the first end face (11) side, the upper part of the second end face (12) and the upper part of the third end face (13);

and cross-shaped pressing plate grooves (5) are formed in the third end surface (13) and the end surface opposite to the third end surface (13).

2. The fixture for realizing the simultaneous three-side processing of workpieces as recited in claim 1, characterized in that the first end surface (11), the second end surface (12) and the opposite end surface thereof are provided with concave tapered tool testing grooves (6).

3. The fixture for realizing the simultaneous three-side processing of the workpiece according to claim 2, wherein hollow cavities (7) are further symmetrically arranged on the second end surface (12) and the opposite end surface thereof, and the hollow cavities (7) are communicated with the concave conical trial groove (6) arranged on the second end surface (12).

4. The fixture for realizing the simultaneous three-side processing of the workpiece according to claim 1, further comprising a bolt (21) and a cushion block (22), wherein a kidney-shaped through hole is formed in the middle of the fixture pressing plate (2), a threaded hole matched with the bolt (21) is formed in the fixture pressing plate (2), the bolt (21) penetrates through the kidney-shaped through hole and the threaded hole to realize the connection between the fixture pressing plate (2) and the square base (1), the fixture pressing plate (2) is suitable for moving transversely along the axis direction of the kidney-shaped through hole, and the cushion block (22) is arranged between the fixture pressing plate (2) and the square base (1).

5. The clamp for the realization of the same-position three-sided machining of workpieces according to claim 1 is characterized in that the first end face (11) comprises a first side provided with the positioning reference hole (4) and a second side opposite to the first side, the first end face being inclined from the second side to the first side.

6. The fixture for realizing the simultaneous three-sided machining of workpieces as recited in claim 3, characterized in that the depth of the concave conical trial groove (6) is smaller than the width of the hollow cavity (7) in the direction parallel to the axis of the positioning reference hole (4) on the second end surface (12).

7. The fixture for realizing the simultaneous three-sided machining of workpieces as recited in any one of claims 1 to 6, characterized in that the axes of the positioning reference holes (4) on the second end surface (12) intersect the axes of the positioning reference holes (4) on the first end surface (11) and the third end surface (13), respectively.

8. The clamp for realizing the simultaneous three-side processing of the workpiece according to claim 7 is characterized in that the projection of one end of the clamp pressing plate (2) close to the workpiece on the first end surface (11) is an isosceles trapezoid, and the width of the narrow side of the isosceles trapezoid is smaller than the groove width of the workpiece.

9. The fixture for realizing the simultaneous three-face machining of workpieces as recited in claim 8, further comprising a pressure plate (51), wherein the pressure plate (51) is suitable for being fixedly arranged on a milling machine workbench, and the pressure plate (51) extends into the cross-shaped pressure plate groove (5).

10. A fixture for realising a co-located three-sided machining of workpieces according to claim 9, characterised in that it further comprises a supporting column (52), said supporting column (52) being suitable to be arranged between said platen (51) and said milling machine table.

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