CN211916149U - Cutting clamp - Google Patents

Abstract

The utility model relates to the field of clamps and discloses a cutting clamp, which comprises a base, a positioning part and an identification part, wherein the positioning part and the identification part are arranged on the base; the identification part is used for the visual identification equipment to identify the center of the positioning clamp, and the identification part is at least two identification pieces which are arranged on the base and are uniformly distributed on a circumference which takes the center of the base as the circle center; or the identification part is at least two pairs of identification pieces arranged on the base, and the connecting line of each pair of identification pieces passes through the center of the base. The recognition part is arranged on the clamp base, so that the vision recognition equipment can capture the vision recognition equipment, the position of the center of the clamp can be obtained according to the captured recognition part, the position error of the clamp installed on a machine tool or a workbench of machining equipment is compensated, and the machining precision of a workpiece can be effectively improved.

Description

Cutting clamp

Technical Field

The utility model relates to an anchor clamps field, in particular to cutting jig.

Background

In actual production, a workpiece needs to be cut and the like to meet requirements. The fixture can be used for assisting in controlling the position of the workpiece to ensure the machining precision, and therefore, the fixture is widely applied to workpiece machining.

And positioning the workpiece on a clamp, wherein the clamp is arranged on a machine tool or a workbench of the machining equipment, and the machining equipment machines the workpiece by taking the position of the clamp as a reference. However, the existing clamp is usually matched with machining equipment in a manual positioning mode, and the problem of low positioning accuracy exists. Specifically, the clamp is installed on a machine tool or a workbench, and certain position errors are inevitable; meanwhile, in the use process, the clamp can shift due to the influence of the processing process or the outside, the tiny shift is difficult to find only by naked eye observation, and the workpiece processing takes the position of the clamp with the error as the reference, so that the workpiece positioning deviation can be caused finally, and the problems of low processing precision and substandard quality are caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a cutting jig, when aiming at solving current anchor clamps and processing equipment cooperation use, because there is position error and lead to the problem that machining precision is low.

The utility model provides a technical scheme that its technical problem adopted is: the cutting clamp comprises a base, a positioning part arranged on the base, and an identification part for visual identification equipment to identify the center of the positioning clamp;

the identification part comprises at least two identification pieces arranged on the base, and the at least two identification pieces are uniformly distributed on a circumference which takes the center of the base as the circle center;

or the identification part comprises at least two pairs of identification pieces arranged on the base, and each pair of connecting lines of the at least two pairs of identification pieces passes through the center of the base.

Furthermore, the fixture further comprises an auxiliary positioning part, wherein the positioning part is arranged in the center of the base, and the auxiliary positioning part is arranged on the base and is positioned on the periphery of the positioning part.

Further, the position of the auxiliary positioning part from the center of the base is adjustable.

Furthermore, supplementary location portion includes backup pad and is used for adsorbing the magnet of work piece, magnet and backup pad are all installed on the base, backup pad upper surface is higher than the magnet upper surface.

Further, the supporting plate is made of a non-magnetic material.

Furthermore, location portion includes supporting seat and with work piece locating hole complex shop bolt, the supporting seat is installed in the base center, shop bolt installs on the supporting seat.

Further, the base is the fretwork form, includes base frame, splice bar and the core that is located the base center, the one end and the core of splice bar are connected, and the other end is connected with the base frame.

Furthermore, a plurality of mounting holes used for being connected with the auxiliary positioning part are formed in the connecting ribs, and the distance between each mounting hole and the center of the base is unequal.

Furthermore, the number of the auxiliary positioning portions is at least three, the number of the connecting ribs is at least three, at least one auxiliary positioning portion is installed on each connecting rib, and the positions of the installation holes in each connecting rib are consistent.

Furthermore, the auxiliary positioning part also comprises an L-shaped adapter plate and a magnet mounting block, and the magnet is positioned at the top of the magnet mounting block;

one side of the L shape is connected with the upper surface of the connecting rib, and the other side of the L shape is connected with the magnet mounting block and the supporting plate;

waist-shaped holes are formed in one side of the L-shaped adapter plate connected with the connecting ribs and the magnetic mounting block and one side of the support plate connected with the L-shaped adapter plate.

The beneficial effects of the utility model reside in that, through set up the identification portion on the anchor clamps base, supply visual identification equipment to catch, and then can acquire the position at anchor clamps center according to the identification portion of catching, compensate the position error that anchor clamps installed on processing equipment lathe or workstation from this, can the effectual machining precision who improves the work piece.

Drawings

FIG. 1 is a schematic structural view of the clamp of the present invention when clamping a workpiece;

FIG. 2 is a schematic structural view of the clamp body of the present invention;

fig. 3 is a schematic structural view of the auxiliary positioning portion of the present invention.

In the figure: 1. a base; 11. connecting ribs; 111. mounting holes; 12. a base frame; 121. a clamp mounting hole; 13. a core body; 2. a positioning part; 21. a supporting seat; 22. positioning a pin; 3. an auxiliary positioning part; 31. an adapter plate; 311. a waist-shaped hole; 32. a support plate; 321. a waist-shaped hole; 33. a magnet mounting block; 331. a waist-shaped hole; 34. a magnet; 4. an identification unit; 41. identifying a pin; 5. and (5) a workpiece.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the cutting fixture of the present embodiment includes a base 1, a positioning portion 2 and an identification portion 4, the positioning portion 2 and the identification portion 4 are disposed on the base 1, the identification portion 4 is a component for allowing the visual recognition device to identify the center of the positioning fixture, the identification portion 4 includes at least two identification members uniformly distributed on a circumference using the center of the base 1 as a circle center, or the identification portion 4 includes at least two pairs of identification members, and each pair of connecting lines all passes through the center of the base 1. The identification piece can be an identification pin or an identification pin hole or any other marker which can be identified by visual identification equipment, and the position of the identification piece on the base is not shielded by the workpiece.

The number of the identification members shown in fig. 2 is 4, and the identification members are uniformly distributed on the base 1 by taking the center of the base 1 as a center, so that a connecting line of two opposite identification pins 41 and a connecting line of the other two opposite identification pins 41 intersect at the center of the base 1. The vision recognition device captures 4 identification pins 41, and calculates the intersection point position of the connecting lines of two sets of opposite identification pins 41 by matching with an algorithm, so that the position of the center of the base 1, namely the position of the center of the clamp can be determined. The workpiece is machined by taking the position as a reference, so that the position error of the clamp installed on the base 1 can be compensated, and the machining precision of a product is improved.

Fig. 2 shows an example of the arrangement of the recognition unit 4, but the present invention is not limited to this arrangement. For example, two identification pieces can be arranged and uniformly distributed on a circumference which takes the center of the base 1 as the center of a circle, and the middle point of the connecting line of the two identification pieces is the center of the clamp; or three identification pieces are uniformly distributed on the circumference which takes the center of the base 1 as the circle center, and the center of the regular triangle formed by the three identification pieces is the center of the clamp; or two pairs of identification pieces are arranged, the distance between the identification pieces and the center of the base 1 and the interval between the identification pieces can be flexibly set as long as the connecting line of each pair of identification pieces passes through the center of the base 1, and the intersection point of the connecting lines of the two pairs of identification pieces is the center of the clamp. The vision recognition equipment can recognize the center of the clamp by adopting an algorithm corresponding to the setting mode of the recognition part 4.

The positioning part 2 is a structure matched with the workpiece, such as a positioning block matched with the contour of the workpiece, or a boss, a pin and the like matched with a part for positioning the workpiece, and the position of the positioning part 2 on the base is also different according to the structure of the workpiece. The positioning portion 2 of the present embodiment is disposed at the center of the base 1, and referring to fig. 1, the positioning portion 2 includes a supporting seat 21 and a positioning pin 22 engaged with the workpiece positioning hole, the supporting seat 21 is mounted at the center of the base 1, and the positioning pin 22 is mounted on the supporting seat 21. The pin positioning is adopted, the structure is simple, the pin is arranged on the supporting seat, the stability of the pin can be ensured, and the stability of workpiece positioning is ensured.

In order to stabilize the positioning of the workpiece 5, an auxiliary positioning portion 3 is further provided on the periphery of the positioning portion 2, as shown in fig. 1 and 2. Therefore, the edge of the workpiece can be effectively fixed except for the center of the workpiece is positioned, and the stability of the workpiece during processing is improved, so that the processing precision is further ensured. The structure is particularly suitable for disc-shaped structural parts like automobile clutch shells and the like.

Further, in order to enhance the versatility of the clamp and adapt the clamp to workpieces with different sizes, the position of the auxiliary positioning part 3 from the center of the base 1 can be adjusted. The hole sites can be reserved at different positions on the clamp base 1, the distance between the auxiliary positioning portion 3 and the center of the base 1 can be adjusted through different positions on the base 1, a sliding groove for the auxiliary positioning portion 3 to slide can be formed in the base 1, and the position of the auxiliary positioning portion 3 on the sliding groove can be set according to actual requirements of workpieces.

Referring to fig. 3, the sub-positioning portion 3 is composed of a support plate 32 and a magnet 34 for attracting the workpiece 5, the magnet 34 and the support plate 32 are both mounted on the base 1, and the upper surface of the support plate 32 is higher than the upper surface of the magnet, so that the workpiece can still receive sufficient magnetic attraction without contacting the magnet. By adopting the structure, the edge of the workpiece is supported by the supporting plate and is simultaneously adsorbed and fixed by the magnet, but the workpiece is not in direct contact with the magnet, so that the looseness of the magnet caused by repeated replacement of the workpiece can be avoided. Meanwhile, because iron scraps are generated in the process of cutting cast iron structural members such as an automobile clutch shell, the upper end of the magnet inevitably adsorbs certain iron scraps, if the iron scraps are not cleaned in time, if the magnet is in direct contact with a workpiece, the workpiece position is possibly deviated due to accumulation of the scraps when the workpiece is clamped next time, the machining precision is influenced, and the machining efficiency is influenced if the iron scraps are cleaned repeatedly. Therefore, the upper surface of the support plate 32 is configured to be appropriately higher than the upper surface of the magnet, and the problem that the machining accuracy and the machining efficiency are affected by the iron scraps adsorbed by the magnet can be effectively solved.

The support plate 32 may be made of a non-magnetic material such as copper plate, non-magnetic stainless steel, etc. Thus, even if support plate 32 is positioned adjacent to magnet 34, the surface will not accumulate iron debris due to its non-magnetic properties.

Continuing to refer to fig. 2, the base 1 of this embodiment is hollow, and includes a base frame 12, a connecting rib 11 and a core 13 located at the center of the base 1, one end of the connecting rib 11 is connected with the core 13, the other end is connected with the base frame 12, and four corners of the base frame 1 frame 12 are respectively provided with a fixture mounting hole 121 for mounting a fixture on a processing device. Through setting up above-mentioned hollow out construction, the cutting waste material can be followed hollow out construction and fallen down, and simultaneously, this hollow out construction's design is also favorable to the installation of supplementary location portion 3 in this embodiment. All be equipped with a plurality of mounting holes 111 on the splice bar 11, the distance diverse at a plurality of mounting holes 111 and base 1 center, this mounting hole 111 is used for installing assistance-localization real-time portion 3, installs assistance-localization real-time portion 3 in the mounting hole 111 of difference can adjust its and base 1 central distance to satisfy the demand of commonality.

Preferably, the connection rib 11 is provided with 3 pieces. Correspond with 3 splice bars 11, assistance-localization real-time portion 3 is equipped with 3 at least in this embodiment, installs 1 at least assistance-localization real-time portion 3 on every splice bar 11 respectively, and the mounting hole 111 position on every splice bar 11 is all unanimous. The arrangement is favorable for more balance of adsorption on the workpiece, and the deviation of machining precision caused by unbalanced adsorption is avoided. Of course, if the machined workpiece is large and the rigidity is poor, the auxiliary positioning part 3 may be added to balance the workpiece 5 as much as possible.

Referring to fig. 2 and 3, the positioning assisting part 3 further includes an L-shaped adapter plate 31 and a magnet mounting block 33, a magnet 34 is disposed on the top of the magnet mounting block 33, one side of the adapter plate 31 is connected to the upper surface of the connecting rib 11, and the other side is connected to the magnet mounting block 33 and the support plate 32; the side of the adapter plate 31 connected to the connecting rib 11 is provided with a waist-shaped hole 311, and the side of the magnetic mounting block 33 and the support plate 32 connected to the adapter plate 31 is provided with a waist-shaped hole 331 and a waist-shaped hole 321, respectively. The adapter plate 31 is beneficial to installation of the auxiliary positioning portion 3, and the height of the auxiliary positioning portion 3 and the distance between the auxiliary positioning portion and the center of the base can be finely adjusted according to needs due to the arrangement of the waist-shaped holes, so that the universal performance of the clamp is enhanced.

It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and all such modifications and alterations should fall within the scope of the appended claims.

Claims (10)

1. A cutting clamp comprises a base and a positioning part arranged on the base, and is characterized by also comprising an identification part for visual identification equipment to identify the center of the positioning clamp;

the identification part comprises at least two identification pieces arranged on the base, and the at least two identification pieces are uniformly distributed on a circumference which takes the center of the base as the circle center;

or the identification part comprises at least two pairs of identification pieces arranged on the base, and each pair of connecting lines of the at least two pairs of identification pieces passes through the center of the base.

2. The cutting jig according to claim 1, further comprising a positioning part provided in the center of the base, the positioning part being provided on the base at the periphery of the positioning part.

3. The cutting fixture of claim 2, wherein the secondary locator is adjustable in position from the center of the base.

4. The cutting jig of claim 3, wherein the auxiliary positioning portion includes a support plate and a magnet for attracting the workpiece, the magnet and the support plate are both mounted on the base, and an upper surface of the support plate is higher than an upper surface of the magnet.

5. The cutting fixture of claim 4, wherein the support plate is a non-magnetically conductive material.

6. The cutting jig of claim 4, wherein the positioning portion comprises a support base mounted at the center of the base and a positioning pin engaged with the workpiece positioning hole, the positioning pin being mounted on the support base.

7. The cutting fixture of any one of claims 4 to 6, wherein the base is hollowed and comprises a base frame, a connecting rib and a core body located at the center of the base, wherein one end of the connecting rib is connected with the core body, and the other end of the connecting rib is connected with the base frame.

8. The cutting jig of claim 7, wherein the connecting rib is provided with a plurality of mounting holes for connecting with the auxiliary positioning portions, and the distance between each mounting hole and the center of the base is different.

9. The cutting jig of claim 8, wherein there are at least three of the auxiliary positioning portions, there are at least three of the connecting ribs, at least one auxiliary positioning portion is mounted on each connecting rib, and the mounting holes on each connecting rib are in the same position.

10. The cutting fixture of claim 9,

the auxiliary positioning part also comprises an L-shaped adapter plate and a magnet mounting block, and the magnet is positioned at the top of the magnet mounting block;

one side of the L-shaped adapter plate is connected with the upper surface of the connecting rib, and the other side of the L-shaped adapter plate is connected with the magnet mounting block and the supporting plate;

waist-shaped holes are formed in one side of the L-shaped adapter plate connected with the connecting ribs and the magnetic mounting block and one side of the support plate connected with the L-shaped adapter plate.

Images