CN220592364U

CN220592364U - Positioning fixture for precision part machining

Info

Publication number: CN220592364U
Application number: CN202322278066.4U
Authority: CN
Inventors: 蔡浩东
Original assignee: Hunan Dongjun Precision Technology Co ltd
Current assignee: Hunan Dongjun Precision Technology Co ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2024-03-15
Anticipated expiration: 2033-08-23

Abstract

The application discloses positioning fixture that accurate part processing was used relates to the technical field of anchor clamps, and it includes the base, the fixed panel of placing that is equipped with in top of base, two spouts have been seted up to the top symmetry of placing the panel, two the inside of spout is equal sliding connection has the slider, the inside of placing the panel rotates and is connected with two-way threaded rod, just two spouts are passed through to two-way threaded rod's side, and two the slider all with two-way threaded rod's middle part threaded connection, two the equal rigid coupling in top of slider has the cutting, each the lateral surface of cutting all is pegged graft and is equipped with the grip block, just one side of grip block is the horizontal plane, the opposite side of grip block is concave cambered surface to can increase the flexibility of this positioning fixture, satisfy the centre gripping location of rectangle or circular work piece.

Description

Positioning fixture for precision part machining

Technical Field

The application relates to the technical field of positioning fixtures, in particular to a positioning fixture for machining precision parts.

Background

Precision part machining refers to the process of machining and manufacturing parts requiring high dimensional and shape accuracy by using a machining process. Precision part machining typically requires the use of high precision equipment and tools to ensure the precision and quality of the part.

As the prior patent publication No. CN216126591U, a precision positioning fixture for precision part machining is provided, the precision positioning fixture for precision part machining performs relative movement through two clamping plates, thereby realizing the fixation of the workpiece by the clamping plates, enabling a worker to clamp and fix the workpiece more conveniently, enabling the worker to position the workpiece more conveniently to a certain extent, and performing machining and fixing on workpieces of different sizes through the relative movement of the two clamping plates, enabling the device to perform drilling and machining on the workpieces more conveniently and stably, and enabling the worker to obtain a certain improvement on the machining speed of the workpiece.

However, the mechanism still has certain defects in use, when the circular workpiece is clamped and fixed, the side surfaces of the two clamping plates are in point contact with the outer side surface of the circular workpiece, and the clamping and positioning stability of the mechanism is required to be improved. Based on the above problems, we provide a positioning jig for precision parts machining.

Disclosure of Invention

In order to solve the problems set forth in the background art, the present application provides a positioning jig for precision part machining.

The application provides a positioning fixture that precision parts processing was used adopts following technical scheme:

the utility model provides a positioning fixture that precision parts processing was used, includes the base, the fixed panel of placing that is equipped with in top of base, two spouts have been seted up to the top symmetry of placing the panel, two the inside of spout is equal sliding connection has the slider, the inside of placing the panel rotates and is connected with two-way threaded rod, just two-way threaded rod's side alternates two spouts, and two the slider all with two-way threaded rod's middle part threaded connection, two the equal rigid coupling in top of slider has the cutting, each the lateral surface of cutting is all pegged graft and is equipped with the grip block, just one side of grip block is the horizontal plane, the opposite side of grip block is concave cambered surface.

By adopting the technical scheme, the flexibility of the positioning clamp can be improved, and the clamping and positioning of rectangular or circular workpieces can be satisfied.

Preferably, the front and the back of the clamping block are both in sliding connection with a T-shaped block, the side end of the T-shaped block is in sliding connection with a movable bar, the top of the clamping block is in threaded connection with a fastening rod, and the bottom of the fastening rod can be in extrusion contact with the T-shaped block.

Through adopting above-mentioned technical scheme, further increase work piece centre gripping location's stability, move the strip and can slide on T shape piece moreover, can effectually ensure to move the extrusion of strip to the work piece top surface.

Preferably, the side surfaces of the movable bars are connected with a pair of cross bars in a sliding manner, and the two cross bars are symmetrically arranged.

By adopting the technical scheme, the transverse bars on each movable bar can be pushed to contact the top surface of the workpiece, so that the extrusion positioning of the top surface of the workpiece is completed, and the flexibility and the suitability of the movable bar for clamping and positioning the workpiece can be ensured.

Preferably, the shape of the cutting is a dovetail shape, the guide opening on the clamping block is completely matched with the cutting, the top thread of the clamping block is provided with a screw, and the side end of the screw is arranged in the cutting.

Through adopting above-mentioned technical scheme, can ensure the steadiness of grip block assembly on the cutting, avoid the grip block to appear rotating or the condition of slope.

Preferably, a through hole is formed in the bottom of the base, and the through hole is communicated with the sliding groove.

Through adopting above-mentioned technical scheme, set up the through-hole for in the work piece when processing treatment, the sweeps that produce drops the through-hole, and then reducible sweeps remain in the spout, do benefit to the sweeps in the operating personnel clearance spout.

Preferably, the top center of the placement panel is equipped with a calibration magnetic pad.

By adopting the technical scheme, an operator can conveniently place the workpiece on the placing panel, and the workpiece can be adsorbed and positioned by the calibrating magnetic pad.

In summary, the present application includes the following beneficial technical effects:

1. according to the work piece (rectangle or circular) of waiting to centre gripping location, the placing of adjustment two grip block grip faces, after two grip blocks are assembled on corresponding cutting, operating personnel is placing the work piece on the top surface of placing the panel, then operating personnel is rotating two-way threaded rod for two sliders slide in corresponding spout, thereby make two grip blocks be close to each other and remove, two grip blocks contact and extrude the work piece from this, accomplish the location centre gripping to the instrument, by this structural design, thereby can increase the flexibility of this positioning fixture, satisfy the centre gripping location of rectangle or circular work piece.

2. After the two clamping blocks contact and extrude the workpiece, an operator can rotate each fastening rod in sequence, and each fastening rod contacts and pushes the T-shaped block, so that the movable strip on the T-shaped block contacts and extrudes the top surface of the workpiece, the stability of workpiece clamping and positioning is further improved, the movable strip can slide on the T-shaped block, and the extrusion of the movable strip to the top surface of the workpiece can be effectively guaranteed.

Drawings

FIG. 1 is a schematic view of a positioning fixture for precision part machining according to an embodiment of the present application;

FIG. 2 is a schematic view of the bottom structure of a positioning fixture for precision part machining according to an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a positioning jig for precision parts machining according to an embodiment of the present application;

FIG. 4 is a schematic view of the structure of a clamping block according to an embodiment of the present application;

fig. 5 is an enlarged schematic view of the structure at a in fig. 3.

Reference numerals illustrate: 1. a base; 2. placing a panel; 3. a chute; 4. a two-way threaded rod; 5. a slide block; 6. cutting; 7. a clamping block; 8. a T-shaped block; 9. a movable bar; 10. a fastening rod; 11. a cross bar; 12. a through hole; 13. and calibrating the magnetic pad.

Detailed Description

The present application is described in further detail below in conjunction with fig. 1-5.

It is noted that the figures are schematic and not drawn to scale. Relative dimensions and proportions of parts of the figures have been shown exaggerated or reduced in size, for the sake of clarity and convenience in the drawings, and any dimensions are merely illustrative and not limiting. The same reference numerals are used for the same structures, elements, or accessories appearing in more than two figures to embody similar features.

The embodiment of the application discloses a positioning fixture for machining precision parts. Referring to fig. 1 to 5, a positioning fixture for precision part machining comprises a base 1, wherein a plurality of screw holes for assembly are formed in the bottom of the base 1, a placement panel 2 is fixedly assembled at the top of the base 1, two sliding grooves 3 are symmetrically formed in the top of the placement panel 2, sliding blocks 5 are slidably connected to the two sliding grooves 3, a bidirectional threaded rod 4 is rotatably connected to the inside of the placement panel 2, side ends of the bidirectional threaded rod 4 penetrate through the two sliding grooves 3, the two sliding blocks 5 are in threaded connection with the middle of the bidirectional threaded rod 4, cutting bars 6 are fixedly connected to the tops of the two sliding blocks 5, clamping blocks 7 are assembled on the outer side surfaces of the cutting bars 6 in an inserting mode, one side of each clamping block 7 is a horizontal plane, the other side of each clamping block 7 is a concave cambered surface, one end of the bidirectional threaded rod 4 is arranged outside the placement panel 2, the cross section of the sliding groove 3 is in a convex shape, and the sliding blocks 5 are completely matched with the sliding grooves 3;

specifically, the placing panel 2 is assembled on an external processing table through the base 1, then an operator can adjust the placement of the clamping surfaces of the two clamping blocks 7 according to a workpiece (rectangular or circular) to be clamped and positioned, after the two clamping blocks 7 are assembled on the corresponding cutting 6, the operator places the workpiece on the top surface of the placing panel 2, then the operator rotates the bidirectional threaded rod 4, so that the two sliding blocks 5 slide in the corresponding sliding grooves 3, the two clamping blocks 7 move close to each other, the two clamping blocks 7 contact and squeeze the workpiece, positioning and clamping of a tool are completed, and finally the operator processes the workpiece;

through this structural design to can increase the flexibility of this positioning fixture, satisfy the centre gripping location of rectangle or circular work piece.

Referring to fig. 3, 4 and 5, the front and back sides of the clamping block 7 are both slidably connected with a T-shaped block 8, the side end of the T-shaped block 8 is slidably connected with a movable bar 9, the top of the clamping block 7 is in threaded connection with a fastening rod 10, and the bottom end of the fastening rod 10 can be in extrusion contact with the T-shaped block 8;

specifically, after the two clamping blocks 7 contact and squeeze the workpiece, an operator can rotate each fastening rod 10 in turn, and each fastening rod 10 contacts and pushes the T-shaped block 8, so that the movable strip 9 on the T-shaped block 8 contacts and squeezes the top surface of the workpiece, the stability of workpiece clamping and positioning is further improved, the movable strip 9 can slide on the T-shaped block 8, and the squeezing of the movable strip 9 to the top surface of the workpiece can be effectively guaranteed.

Referring to fig. 5, the side surfaces of the moving bars 9 are slidably connected with a pair of cross bars 11, and the two cross bars 11 are symmetrically arranged, when the workpiece is arranged in the side surfaces of the two clamping blocks 7, an operator can push the cross bars 11 on each moving bar 9, so that the cross bars 11 contact the top surface of the workpiece, and extrusion positioning of the top surface of the workpiece is completed, thereby ensuring the flexibility and suitability of the moving bars 9 to clamp and position the workpiece.

Referring to fig. 1 and 4, the shape of the cutting 6 is dovetail-shaped, the guide opening on the clamping block 7 is completely matched with the cutting 6, the top thread of the clamping block 7 is provided with a screw, and the side end of the screw is arranged in the cutting 6, so that the structural design can ensure the stability of the assembly of the clamping block 7 on the cutting 6, and the condition that the clamping block 7 rotates or inclines is avoided.

Referring to fig. 2 and 3, a through hole 12 is formed in the bottom of the base 1, the through hole 12 is communicated with the chute 3, and by forming the through hole 12, generated scraps fall into the through hole 12 during processing of a workpiece, and the scraps can be reduced to remain in the chute 3, so that the scraps in the chute 3 can be cleaned by an operator.

Referring to fig. 1 and 3, a calibration magnetic pad 13 is assembled at the center of the top of the placement panel 2, and by arranging the calibration magnetic pad 13, an operator can conveniently place a workpiece on the placement panel 2, and the calibration magnetic pad 13 can be used for adsorbing and positioning the workpiece.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of the parts adopt conventional means such as mature bolts, rivets and welding in the prior art, and machines, parts and equipment adopt conventional models in the prior art and are not described in detail.

The implementation principle of the positioning clamp for processing the precise part is as follows: firstly, a placing panel 2 is assembled on an external processing table through a base 1, then an operator can adjust the placement of clamping surfaces of two clamping blocks 7 according to a workpiece (rectangular or circular) to be clamped and positioned, after the two clamping blocks 7 are assembled on corresponding cutting bars 6, the operator places the workpiece on the top surface of the placing panel 2, then the operator rotates a bidirectional threaded rod 4, so that two sliding blocks 5 slide in corresponding sliding grooves 3, the two clamping blocks 7 move close to each other, the two clamping blocks 7 contact and press the workpiece, positioning and clamping of a tool are completed, and finally the operator processes the workpiece;

after the two clamping blocks 7 contact and squeeze the workpiece, an operator can rotate each fastening rod 10 in turn, and each fastening rod 10 contacts and pushes the T-shaped block 8, so that the movable strip 9 on the T-shaped block 8 contacts and squeezes the top surface of the workpiece, the stability of workpiece clamping and positioning is further improved, the movable strip 9 can slide on the T-shaped block 8, and the squeezing of the movable strip 9 on the top surface of the workpiece can be effectively ensured;

meanwhile, when the workpiece is arranged in the side surfaces of the two clamping blocks 7, an operator can push the transverse bars 11 on each movable bar 9, so that the transverse bars 11 contact the top surface of the workpiece, extrusion positioning of the top surface of the workpiece is completed, and therefore flexibility and suitability of the movable bars 9 for clamping and positioning the workpiece can be guaranteed.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a positioning fixture that precision parts processing was used, includes base (1), the fixed assembly in top of base (1) has placed panel (2), two spouts (3) have been seted up to the top symmetry of placing panel (2), two equal sliding connection in inside of spout (3) has slider (5), the inside rotation of placing panel (2) is connected with two-way threaded rod (4), just two spouts (3) are threaded through to the side of two-way threaded rod (4), and two slider (5) all with the middle part threaded connection of two-way threaded rod (4), its characterized in that: two the top of slider (5) all is fixedly connected with cutting (6), and each the lateral surface of cutting (6) is all pegged graft and is equipped with grip block (7), just one side of grip block (7) is the horizontal plane, the opposite side of grip block (7) is concave cambered surface, the front of grip block (7) all sliding connection with the back has T shape piece (8), just the side sliding connection of T shape piece (8) has movable strip (9), the top threaded connection of grip block (7) has fastening rod (10), just but the bottom extrusion contact T shape piece (8) of fastening rod (10).

2. The positioning jig for precision parts machining according to claim 1, wherein: the side surfaces of the movable bars (9) are connected with a pair of cross bars (11) in a sliding manner, and the two cross bars (11) are symmetrically arranged.

3. The positioning jig for precision parts machining according to claim 2, wherein: the shape of cutting (6) is the dovetail, just guide port on grip block (7) is fit with cutting (6) completely, the top screw thread of grip block (7) is equipped with the screw, just the side of screw is held and is arranged in cutting (6).

4. The positioning jig for precision parts machining according to claim 1, wherein: the bottom of the base (1) is provided with a through hole (12), and the through hole (12) is communicated with the chute (3).

5. The positioning jig for precision parts machining according to claim 1, wherein: the center of the top of the placing panel (2) is provided with a calibrating magnetic pad (13).