CN220902564U - Clamp for machining multistage Roots pump blade - Google Patents

Clamp for machining multistage Roots pump blade Download PDF

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Publication number
CN220902564U
CN220902564U CN202322482292.4U CN202322482292U CN220902564U CN 220902564 U CN220902564 U CN 220902564U CN 202322482292 U CN202322482292 U CN 202322482292U CN 220902564 U CN220902564 U CN 220902564U
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CN
China
Prior art keywords
clamping seat
clamping
roots pump
machining
clamp
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CN202322482292.4U
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Chinese (zh)
Inventor
魏志勇
高运强
李新磊
杨鑫利
张红卫
赵培
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Hebei Henggong Precision Equipment Co ltd
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Hebei Henggong Precision Equipment Co ltd
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Priority to CN202322482292.4U priority Critical patent/CN220902564U/en
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Publication of CN220902564U publication Critical patent/CN220902564U/en
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Abstract

The utility model relates to the technical field of Roots pump processing, in particular to a clamp for multistage Roots pump blade processing. The clamp is used for clamping a workpiece to be machined, and comprises a first clamping seat and a second clamping seat, a fixing assembly connected with the first clamping seat, a limiting assembly connected with the second clamping seat, a dovetail-shaped boss arranged at one end of the workpiece to be machined, a first containing portion and a second containing portion arranged between inclined planes of the workpiece to be machined and two sides of the boss respectively, a first clamping portion matched with the first containing portion arranged on one side of the first clamping seat, and a second clamping portion matched with the second containing portion arranged on one side of the second clamping seat. According to the utility model, the dovetail-shaped boss is arranged, the first accommodating part and the second accommodating part are respectively arranged between the to-be-machined piece and the inclined planes at two sides of the boss, the first clamping seat is provided with the first clamping part matched with the first accommodating part, and the second clamping seat is provided with the second clamping part matched with the second accommodating part, so that the to-be-machined piece is prevented from deforming, and the machining precision is improved.

Description

Clamp for machining multistage Roots pump blade
Technical Field
The utility model relates to the technical field of Roots pump processing, in particular to a clamp for multistage Roots pump blade processing.
Background
When producing multistage roots vacuum pump blade, need to mill the profile of "egg" with the cross section for circular continuous casting stick, prior art need be with workpiece one side terminal surface processing to get cuboid form boss earlier in processing, then use the vice to press from both sides tightly the boss, mill the circular arc on machining center. When the boss adopts a cuboid structure to mill the surface, the processing precision is poor because the cuboid boss is easy to deform.
Disclosure of utility model
In order to solve the problem that the cuboid boss is easy to deform, resulting in poor machining precision in the prior art.
The utility model provides a multistage roots pump blade adds clamping apparatus for the centre gripping waits for the machined part, including first clamping seat and second clamping seat, with the fixed subassembly that first clamping seat links to each other, with the spacing subassembly that the second clamping seat links to each other, wait for machined part one end to be equipped with the boss of dovetail form, wait for the machined part with be equipped with first accommodation portion and second accommodation portion between the inclined plane of boss both sides respectively, first clamping seat one side be equipped with first accommodation portion complex first clamping part, second clamping seat one side be equipped with second accommodation portion matched with second clamping part.
Further, the top surface of the first clamping seat is provided with a first positioning groove, and a second limiting piece is arranged in the first positioning groove.
Further, a first fixing hole matched with the fixing component is formed in one side of the first clamping seat.
Further, one side of the second clamping seat is provided with a second fixing hole matched with the limiting assembly.
Further, the fixing assembly comprises a fixing claw connected with the first clamping seat and a first T-shaped block detachably connected with the fixing claw.
Further, the limiting assembly comprises a movable claw connected with the second clamping seat and a second T-shaped block detachably connected with the movable claw.
Further, a first caulking groove matched with the fixing component is formed in the bottom surface of the first clamping seat.
Further, a second caulking groove matched with the limiting component is formed in the bottom surface of the second clamping seat.
Furthermore, a first cavity part is arranged on one side of the first clamping seat, and a first inner groove is arranged at the bottom of the first cavity part.
Further, a second cavity part is arranged on one side of the second clamping seat, and a second inner groove is arranged at the bottom of the second cavity part.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the dovetail-shaped boss is arranged, the first accommodating part and the second accommodating part are respectively arranged between the to-be-machined piece and the inclined planes at two sides of the boss, the first clamping seat is provided with the first clamping part matched with the first accommodating part, and the second clamping seat is provided with the second clamping part matched with the second accommodating part, so that the to-be-machined piece is prevented from deforming, and the machining precision is improved.
2. The first clamping seat is provided with a first cavity part on one side, the second clamping seat is provided with a second cavity part on one side, and the bottom of the second cavity part is provided with a second inner groove by arranging a first inner groove on the bottom of the first cavity part. Therefore, stress concentration of the first clamping seat and the second clamping seat is reduced, and service lives of the first clamping seat and the second clamping seat are prolonged.
3. The first locating groove is formed in the top surface of the first clamping seat, and the second limiting piece is arranged in the first locating groove to locate the workpiece to be machined.
Drawings
FIG. 1 is a schematic diagram of a structure of a workpiece to be machined;
FIG. 2 is an assembly schematic of a clamp for processing multistage Roots pump blades;
FIG. 3 is an exploded schematic view of a clamp for processing multistage Roots pump blades;
FIG. 4 is a schematic view of the structure of the first clamping seat;
FIG. 5 is a schematic structural view of a stationary pawl;
FIG. 6 is a schematic diagram of a first T-block;
FIG. 7 is a schematic view of a second clamping seat;
FIG. 8 is a schematic view of the structure of the moveable jaw;
FIG. 9 is a schematic diagram of a second T-block configuration;
In the figure: a to-be-machined part 1; a boss 11; a first accommodating portion 12; a second accommodating portion 13; a first clamping seat 2; a first clamping portion 21; a first cavity portion 22; a first inner tank 23; a first positioning groove 24; a first caulking groove 25; a first fixing hole 26; a second clamping seat 3; a second clamping portion 31; a second cavity portion 32; a second inner tank 33; a second positioning groove 34; a second caulking groove 35; a second fixing hole 36; a fixing assembly 4; a fixing claw 41; a third accommodating portion 411; a first slug 412; a third fixing hole 413; a first limiting groove 414; a first T-block 42; a second limiting groove 421; a fifth fixing hole 422; a first stopper 43; a limit component 5; a movable claw 51; a fourth accommodating portion 511; a second slug 512; a sixth fixing hole 513; a seventh fixing hole 514; a sliding groove 515; a second T-block 52; an eighth fixing hole 521; a third receiving portion 522; a second limiting member 6; a work table 7; and a third limit groove 71.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-3, the utility model provides a multi-stage Roots pump blade processing clamp, which is used for clamping a workpiece 1 to be machined, and comprises a first clamping seat 2, a second clamping seat 3, a fixing assembly 4 connected with the first clamping seat 2, and a limiting assembly 5 connected with the second clamping seat 3.
The utility model discloses a workpiece clamping device, including work piece 1, second clamping seat 2, first holding portion 12, second holding portion 13, first holding portion 12 with work piece 1 one end is equipped with dovetail-shaped boss 11, work piece 1 with be equipped with first holding portion 12 and second holding portion 13 between the inclined plane of boss 11 both sides respectively, first holding portion 12 with first clamping seat 2 cooperatees, second holding portion 13 cooperatees with second clamping seat 3.
The fixing component 4 and the limiting component 5 are arranged on the workbench 7, a third limiting groove 71 is formed in the workbench 7, and the third limiting groove 71 is matched with the first limiting piece 43.
As shown in fig. 4, a first clamping portion 21 is disposed on one side of the first clamping seat 2, and is configured to cooperate with the first accommodating portion 12 to clamp the dovetail-shaped boss 11.
In one possible embodiment, the first clamping portion 21 is located at a position on the end side of the first clamping seat 2. The first clamping portion 21 is configured as a projection formed on the body thereof. The projection is formed by the inward indentation of the side wall of the first clamping seat 2. Of course, this embodiment is not limited in any way, and in other embodiments, the protruding portion may be formed separately from the first clamping seat 2, as long as it is ensured that the first clamping portion 21 can be fitted to the first accommodating portion 12.
In a possible embodiment, the cross section of the first clamping portion 21 is triangular, and may be configured in other shapes, such as polygonal, as long as the first clamping portion 21 can be engaged with the first accommodating portion 12.
In a possible embodiment, a first cavity portion 22 is provided at one side of the first clamping portion 21, a first inner groove 23 is further provided at the bottom of the first cavity portion 22, and by providing the first inner groove 23, stress concentration of the first clamping seat 2 is reduced, and service life is prolonged.
As shown in fig. 4, a first positioning groove 24 is formed in the top surface of the first clamping seat 2, a second limiting member 6 is disposed in the first positioning groove 24, and the second limiting member 6 abuts against the boss 11 and is used for positioning the workpiece 1 to be machined. The second limiting member 6 is preferably a positioning pin.
As shown in fig. 4, the bottom surface of the first clamping seat 2 is provided with a first caulking groove 25, and the first caulking groove 25 is used for matching with the fixing component 4. The side surface of the first clamping seat 2 is also provided with a first fixing hole 26, and the first fixing hole 26 is used for being connected with the fixing assembly 4. In this embodiment, the first fixing holes 26 are blind holes, which are two and arranged in a lateral direction.
As shown in fig. 2 and 5, the fixing assembly 4 includes a fixing jaw 41 connected to the first clamping seat 2, and a first T-shaped block 42 detachably connected to the fixing jaw 41. In one possible embodiment, the fixing jaw 41 is provided with a third receptacle 411, the third receptacle 411 being intended to receive the first clamping socket 2. The bottom of the third accommodating portion 411 is provided with a first insert 412 that is in concave-convex fit with the first caulking groove 25 of the first clamping seat 2, and the fixing claw 41 is aligned and accurately clamped on the first clamping seat 2 through a concave-convex fit structure, so as to prevent the first clamping seat 2 from falling off.
As shown in fig. 5, in one possible embodiment, the fixing jaw 41 is provided with a plurality of third fixing holes 413 on a side surface, and the positions and the number of the third fixing holes 413 correspond to those of the first fixing holes 26. The first fixing hole 26 of the first clamping seat 2 is connected with the third fixing hole 413 through a fastener, thereby embedding the first clamping seat 2 in the fixing jaw 41.
As shown in fig. 5, in one possible embodiment, a first limiting groove 414 is concavely formed on the bottom surface of the fixing jaw 41, and the first limiting groove 414 is matched with the first T-shaped block 42, the workbench 7 and the first limiting member 43, so as to limit the fixing jaw 41. The bottom of the fixing claw 41 is provided with a plurality of fourth fixing holes (not shown) which are connected with the first T-shaped block 42 by fasteners. In one possible embodiment, the fourth fixing hole is disposed at the bottom surface of the first limiting groove 414.
As shown in fig. 6, in one possible embodiment, a second limiting groove 421 is formed on the top surface of the first T-shaped block 42, and the second limiting groove 421 is disposed corresponding to the first limiting groove 414. The bottom of the second limiting groove 421 is provided with a plurality of fifth fixing holes 422 corresponding to the fourth fixing holes, the fifth fixing holes 422 are stepped through holes, and a fastener passes through the fifth fixing holes 422 to be matched with the fourth fixing holes, so that the fixing claws 41 are connected with the first T-shaped blocks 42.
As shown in fig. 3, the first limiting member 43 is preferably a rectangular cylinder. The first limiting member 43 is disposed in the accommodating space formed by the first limiting groove 414, the second limiting groove 421 and the third limiting groove 71, and is used for limiting the fixing jaw 41 and the first T-shaped block 42.
As shown in fig. 7, a second clamping portion 31 is provided on one side of the second clamping seat 3, and is configured to cooperate with the first clamping portion 21 to clamp the boss 11, thereby avoiding deformation of the workpiece 1 to be machined and improving machining precision.
In a possible embodiment, the second clamping portion 31 is located at a position on the end side of the second clamping seat 3. The second clamping portion 31 is configured as a projection formed on the body thereof. The projection is formed by the inward indentation of the side wall of the second clamping seat 3. Of course, this embodiment is not limited in any way, and in other embodiments, the protruding portion may be formed separately from the second clamping seat 3, as long as it is ensured that the second clamping portion 31 can be fitted to the second accommodating portion 13.
In a possible embodiment, the cross section of the second clamping portion 31 is triangular, and may be configured in other shapes, such as polygonal, as long as the second clamping portion 31 is capable of being fitted into the second accommodating portion 13.
As shown in fig. 7, a second cavity portion 32 is provided on one side of the second clamping portion 31, a second inner groove 33 is further provided at the bottom of the second cavity portion 32, and by providing the second inner groove 33, stress concentration of the second clamping seat 3 is reduced, and the service life of the second clamping seat 3 is prolonged.
In a possible embodiment, the top surface of the second clamping seat 3 is provided with a second positioning groove 34, a second limiting member 6 is disposed in the second positioning groove 34, and the second limiting member 6 abuts against the boss 11, so as to position the workpiece 1 to be machined.
As shown in fig. 7, the bottom surface of the second clamping seat 3 is provided with a second caulking groove 35, and the second caulking groove 35 is used for being matched with the fixing claw 41. The side surface of the second clamping seat 3 is also provided with a second fixing hole 36, and the second fixing hole 36 is used for being connected with the fixing claw 41. In this embodiment, the second fixing holes 36 are blind holes, which are arranged in four and lateral directions.
As shown in fig. 3 and 8, the limiting assembly 5 includes a movable claw 51 connected to the second clamping seat 3, and a second T-shaped block 52 detachably connected to the movable claw 51. In one possible embodiment, the moveable jaw 51 is provided with a fourth receiving portion 511, the fourth receiving portion 511 being adapted to receive the second clamping seat 3.
As shown in fig. 8, a second insert 512 that is in concave-convex fit with the second insert groove 35 of the second clamping seat 3 is provided on the bottom surface of the fourth accommodating portion 511, and the movable claw 51 is aligned and accurately clamped on the second clamping seat 3 by the concave-convex fit structure, so as to prevent the second clamping seat 3 from falling off.
As shown in fig. 8, a sixth fixing hole 513 is formed in the bottom surface of the movable claw 51, and the sixth fixing hole 513 is matched with the second T-shaped block 52, so as to connect the movable claw 51 with the second T-shaped block 52.
As shown in fig. 8, a seventh fixing hole 514 that mates with the second fixing hole 36 is provided on a side of the movable jaw 51, and the second fixing hole 36 of the second clamping seat 3 is connected to the seventh fixing hole 514 through a fastener, so that the second clamping seat 3 is embedded in the movable jaw 51. The seventh fixing hole 514 is a through hole.
As shown in fig. 8, a sliding groove 515 is concavely formed on the side surface of the movable claw 51 away from the fourth accommodating portion 511, and the sliding groove 515 is matched with a screw on a machine tool, so as to push the movable claw 51 to move, and the second clamping seat 3 clamps the workpiece 1 through the front-back movement of the movable claw 51.
As shown in fig. 9, an eighth fixing hole 521 is concavely formed in the top surface of the second T-shaped block 52, the eighth fixing hole 521 is a stepped through hole, and the eighth fixing hole 521 is connected to the sixth fixing hole 513 by a fastener, thereby connecting the movable claw 51 with the second T-shaped block 52. A third accommodating part 522 is further concavely arranged on the side surface of the second T-shaped block 52 and is used for accommodating an external screw rod.
The installation process of the clamp comprises the following steps: the fifth fixing hole 422 on the first T-shaped block 42 corresponds to the fourth fixing hole of the fixing jaw 41, the fastener passes through the fifth fixing hole 422 to be in threaded connection with the fourth fixing hole, and then the first T-shaped block 42 is placed in the workbench 7, so that the first limiting groove 414 and the second limiting groove 421 correspond to the third limiting groove 71 on the workbench 7. The first stopper 43 is inserted into the accommodating space formed by the first stopper groove 414, the second stopper groove 421, and the third stopper groove 71. The first clamping holder 2 is placed in the third receiving portion 411, and a fastener is coupled to the first clamping holder 2 through the fixing jaw 41, thereby fixing the first clamping holder 2.
Next, an eighth fixing hole 521 of the second T-shaped block 52 is corresponding to the sixth fixing hole 513, and a fastener is threaded through the eighth fixing hole 521 to the sixth fixing hole 513. The second T-block 52 is placed in the table 7. The second clamping holder 3 is placed in the fourth receiving portion 511, and a fastener is coupled to the second clamping holder 3 through the movable jaw 51, thereby coupling the second clamping holder 3 to the movable jaw 51. The sliding groove 515 cooperates with an external screw to move the movable jaw 51, thereby clamping the workpiece 1. The first positioning groove 24 or the second positioning groove 34 is internally provided with a second limiting piece 6, and the second limiting piece 6 abuts against the boss 11 and is used for positioning the workpiece 1 to be processed.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (10)

1. Multistage roots pump blade adds clamping apparatus for centre gripping waits machined part (1), its characterized in that: including first clamping seat (2) and second clamping seat (3), with fixed subassembly (4) that first clamping seat (2) links to each other, with spacing subassembly (5) that second clamping seat (3) links to each other, treat work piece (1) one end and be equipped with dovetail form boss (11), treat work piece (1) with be equipped with first holding portion (12) and second holding portion (13) between the inclined plane of boss (11) both sides respectively, first clamping seat (2) one side be equipped with first holding portion (21) of first holding portion (12) matched with, second clamping seat (3) one side be equipped with second holding portion (31) of second holding portion (13) matched with.
2. The clamp for machining the multistage roots pump blade according to claim 1, wherein: the top surface of the first clamping seat (2) is provided with a first positioning groove (24), and a second limiting piece (6) is arranged in the first positioning groove (24).
3. The clamp for machining the multistage roots pump blade according to claim 1, wherein: one side of the first clamping seat (2) is provided with a first fixing hole (26) matched with the fixing assembly (4).
4. The clamp for machining the multistage roots pump blade according to claim 1, wherein: one side of the second clamping seat (3) is provided with a second fixing hole (36) matched with the limiting assembly (5).
5. The jig for machining a multistage roots pump blade according to claim 3, wherein: the fixing assembly (4) comprises a fixing claw (41) connected with the first clamping seat (2), and a first T-shaped block (42) detachably connected with the fixing claw (41).
6. The clamp for machining the multistage roots pump blade according to claim 4, wherein: the limiting assembly (5) comprises a movable claw (51) connected with the second clamping seat (3), and a second T-shaped block (52) detachably connected with the movable claw (51).
7. The jig for machining a multistage roots pump blade according to claim 5, wherein: the bottom surface of the first clamping seat (2) is provided with a first caulking groove (25) matched with the fixing component (4).
8. The clamp for machining the multistage roots pump blade according to claim 6, wherein: the bottom surface of the second clamping seat (3) is provided with a second caulking groove (35) matched with the limiting assembly (5).
9. The clamp for machining the multistage roots pump blade according to claim 1, wherein: one side of the first clamping seat (2) is provided with a first cavity part (22), and the bottom of the first cavity part (22) is provided with a first inner groove (23).
10. The clamp for machining the multistage roots pump blade according to claim 1, wherein: a second cavity part (32) is arranged on one side of the second clamping seat (3), and a second inner groove (33) is arranged at the bottom of the second cavity part (32).
CN202322482292.4U 2023-09-13 2023-09-13 Clamp for machining multistage Roots pump blade Active CN220902564U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322482292.4U CN220902564U (en) 2023-09-13 2023-09-13 Clamp for machining multistage Roots pump blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322482292.4U CN220902564U (en) 2023-09-13 2023-09-13 Clamp for machining multistage Roots pump blade

Publications (1)

Publication Number Publication Date
CN220902564U true CN220902564U (en) 2024-05-07

Family

ID=90903777

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322482292.4U Active CN220902564U (en) 2023-09-13 2023-09-13 Clamp for machining multistage Roots pump blade

Country Status (1)

Country Link
CN (1) CN220902564U (en)

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