CN216608090U

CN216608090U - Positioning fixture is used in machine part processing

Info

Publication number: CN216608090U
Application number: CN202123137953.7U
Authority: CN
Inventors: 周赛波; 马学锋
Original assignee: Hubei Wanxin Valve Manufacturing Technology Co ltd
Current assignee: Hubei Wanxin Valve Manufacturing Technology Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-05-27
Anticipated expiration: 2031-12-14

Abstract

The utility model relates to a positioning fixture for machining a mechanical part, which belongs to the field of positioning fixtures and comprises a clamping plate, a butting wheel and a moving block, wherein the clamping plate is fixedly connected with the butting wheel; a sliding groove is arranged on the clamping plate; the number of the sliding grooves is two, the two sliding grooves are arranged in a crossed manner, and the sliding grooves are in a cross-shaped structure; four butting wheels and four moving blocks are arranged; the four butting wheels are rotatably arranged on the moving block; the butting wheel is clamped with the moving block; the four moving blocks are all arranged in the sliding groove in a sliding mode; the clamping plate is provided with four adjusting mechanisms for driving the moving blocks to move, and the four adjusting mechanisms are respectively connected with the four moving blocks; the clamping plate is provided with a transmission mechanism, and the four adjusting mechanisms are in driving connection through the transmission mechanism; the butt joint wheel is provided with a threaded rod, and the threaded rod is in threaded connection with the butt joint wheel; a plurality of limiting grooves are formed in the moving block; one end of the threaded rod is embedded in one of the limiting grooves. The utility model is convenient for clamping accessories with different shapes.

Description

Positioning fixture is used in machine part processing

Technical Field

The utility model relates to the field of positioning fixtures, in particular to a positioning fixture for machining of mechanical parts.

Background

The mechanical parts refer to various parts and parts for replacement and maintenance of construction machinery, production equipment, transportation equipment and the like of enterprises; the jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.

The accessory blank is required to be clamped and processed during production, so that the accessory blank conforms to the size required by a process file, most of clamps in the prior art are fixed in shape, only one or more specific parts can be clamped, the types of armors are few, the clamps are inconvenient to clamp parts such as discs, and the applicability is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning clamp for machining mechanical parts, which is convenient for clamping parts with different shapes, aiming at solving the problems in the background technology.

The technical scheme of the utility model is as follows: a positioning clamp for machining mechanical parts comprises a clamping plate, a butting wheel and a moving block;

a sliding groove is arranged on the clamping plate; the number of the sliding grooves is two, the two sliding grooves are arranged in a crossed manner, and the sliding grooves are in a cross-shaped structure; four butting wheels and four moving blocks are arranged; the four butting wheels are rotatably arranged on the moving block, and the butting wheels are eccentric wheels; the butting wheel is clamped with the moving block; the four moving blocks are all arranged in the sliding groove in a sliding mode; the clamping plate is provided with four adjusting mechanisms for driving the moving blocks to move, and the four adjusting mechanisms are respectively connected with the four moving blocks; the clamping plate is provided with a transmission mechanism, and the four adjusting mechanisms are in driving connection through the transmission mechanism.

Preferably, the adjusting mechanism comprises a handle and a screw rod; the screw rod is rotationally arranged on the clamping plate and is positioned in the sliding groove; the handle is arranged at one end of the screw rod; the screw rod is in threaded connection with the moving block.

Preferably, the transmission mechanism comprises a driving bevel gear and a transmission bevel gear; four driving bevel gears are arranged; the four screw rods are respectively arranged on the four driving bevel gears; the transmission bevel gear is rotationally arranged on the clamping disc; the driving bevel gear is in meshed connection with the transmission bevel gear.

Preferably, the adjusting mechanism further comprises a guide rail; the guide rail is arranged on the clamping disc and is positioned at the upper end of the screw rod.

Preferably, the clamping plate is provided with a central hole; the transmission mechanism is positioned in the central hole; the baffle is arranged at the central hole; the transmission mechanism is positioned at the lower end of the baffle.

Preferably, the abutting wheel is provided with a threaded rod, and the threaded rod is in threaded connection with the abutting wheel; a plurality of limiting grooves are formed in the moving block; one end of the threaded rod is embedded in one of the limiting grooves.

Preferably, the lower end of the clamping plate is provided with a base; a plurality of positioning holes are formed in the base.

Compared with the prior art, the utility model has the following beneficial technical effects:

according to the utility model, a disk-type part of a base is placed on a clamping disc, the butting wheels are rotated according to the specific shape of the part, the butting wheels are fixed through the threaded rods, so that the butting wheels can be better attached to the part, the moving blocks are driven to move through the adjusting mechanisms, the moving blocks drive the butting wheels to move, the four adjusting mechanisms can synchronously drive the four moving blocks to move through the transmission mechanisms, and therefore the four moving blocks respectively drive the four butting wheels to move, so that the four butting wheels can be simultaneously contacted with the part to fix the part, and the clamping disc is convenient to use; when needs are adjusted the butt joint wheel, rotate the threaded rod, make the threaded rod rebound, the lower extreme of threaded rod shifts out from the spacing inslot to make the butt joint wheel rotate, thereby can finely tune the position of butt joint wheel, conveniently carry out the clamping to the accessory.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

fig. 3 is a partially enlarged structural diagram of a portion a in fig. 2.

Reference numerals: 1. a base; 101. positioning holes; 2. a clamping disc is arranged; 201. a sliding groove; 202. a central bore; 3. a baffle plate; 4. a butting wheel; 5. a moving block; 501. a limiting groove; 6. an adjustment mechanism; 601. a handle; 602. a screw rod; 603. a guide rail; 7. a transmission mechanism; 701. a drive bevel gear; 702. a drive bevel gear; 8. a threaded rod.

Detailed Description

Example one

As shown in fig. 1-3, the positioning fixture for machining a mechanical part, provided by the utility model, comprises a clamping plate 2, an abutting wheel 4 and a moving block 5;

the clamping plate 2 is provided with a sliding groove 201; two sliding grooves 201 are arranged, the two sliding grooves 201 are arranged in a crossed manner, and the sliding grooves 201 are in a cross-shaped structure; four butting wheels 4 and four moving blocks 5 are arranged; the four butting wheels 4 are rotatably arranged on the moving block 5, and the butting wheels 4 are eccentric wheels; the butting wheel 4 is clamped with the moving block 5; the four moving blocks 5 are all arranged in the sliding groove 201 in a sliding mode; the clamping plate 2 is provided with four adjusting mechanisms 6 for driving the moving blocks 5 to move, and the four adjusting mechanisms 6 are respectively connected with the four moving blocks 5; the clamping disc 2 is provided with a transmission mechanism 7, and the four adjusting mechanisms 6 are in driving connection through the transmission mechanism 7.

The clamping plate 2 is provided with a central hole 202; the transmission mechanism 7 is positioned in the central hole 202; the baffle 3 is arranged at the central hole 202; the transmission mechanism 7 is positioned at the lower end of the baffle 3; the central hole 202 can facilitate the installation of the transmission mechanism 7; the apron 3 provides protection for the transmission mechanism 7 and the central hole 202 can facilitate positioning of the fitting. A threaded rod 8 is arranged on the abutting wheel 4, and the threaded rod 8 is in threaded connection with the abutting wheel 4; a plurality of limiting grooves 501 are arranged on the moving block 5; one end of the threaded rod 8 is embedded in one of the limiting grooves 501; when needs are adjusted butt joint wheel 4, rotate threaded rod 8, make threaded rod 8 rebound, the lower extreme of threaded rod 8 shifts out from spacing groove 501 to make butt joint wheel 4 rotate, thereby can finely tune the position of butt joint wheel 4, conveniently carry out the clamping to the accessory. The lower end of the clamping plate 2 is provided with a base 1; the base 1 is provided with a plurality of locating holes 101, and the base 1 and the locating holes 101 can be used for conveniently clamping the clamping disc 2 on the workbench, so that the installation and the connection are convenient.

In this embodiment, the base is put into clamping dish 2 for the accessory of disc class, rotate butt joint wheel 4 according to the concrete shape of accessory, fix butt joint wheel 4 through threaded rod 8, thereby make the laminating accessory that butt joint wheel 4 can be better, drive movable block 5 through adjustment mechanism 6 and remove, movable block 5 drives butt joint wheel 4 and removes, make four adjustment mechanism 6 can four movable blocks of synchronous drive 5 remove through drive mechanism 7, thereby make four movable blocks 5 drive four butt joint wheels 4 respectively and remove, make four butt joint wheels 4 can contact with the part simultaneously, fix the part, facilitate the use.

Example two

As shown in fig. 1 to 3, compared with the first embodiment, the positioning fixture for machining a mechanical accessory according to the present invention includes a handle 601 and a lead screw 602; the screw rod 602 is rotatably arranged on the clamping plate 2, and the screw rod 602 is positioned in the sliding groove 201; the handle 601 is arranged at one end of the screw rod 602; the lead screw 602 is in threaded connection with the moving block 5. The adjusting mechanism 6 further comprises a guide rail 603; a guide rail 603 is provided on the chucking plate 2, and the guide rail 603 is located at the upper end of the lead screw 602.

In this embodiment, when needing to make butt wheel 4 carry out the clamping to the accessory, turning handle 601, handle 601 drives lead screw 602 and rotates, and lead screw 602 drive movable block 5 removes, and movable block 5 drives butt wheel 4 and removes, and butt wheel 4 clamps the part, facilitates the use.

EXAMPLE III

As shown in fig. 1 to 3, compared with the first embodiment or the second embodiment, the positioning fixture for machining a mechanical accessory according to the present invention includes a driving bevel gear 701 and a driving bevel gear 702; four driving bevel gears 701 are provided; the four screw rods 602 are respectively arranged on the four driving bevel gears 701; the transmission bevel gear 702 is rotatably arranged on the chuck plate 2; the driving bevel gear 701 is in meshed connection with a transmission bevel gear 702.

In this embodiment, the lead screw 602 drives the driving bevel gear 701 connected with the lead screw to rotate, the driving bevel gear 701 drives the driving bevel gear 702 to rotate, and the driving bevel gear 702 drives the other three driving bevel gears 701 to rotate, so that the four lead screws 602 rotate simultaneously, the moving block 5 can be driven to move synchronously, and the accessory can be clamped conveniently.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The positioning clamp for machining the mechanical parts is characterized by comprising a clamping plate (2), a butting wheel (4) and a moving block (5);

a sliding groove (201) is arranged on the clamping disc (2); two sliding grooves (201) are arranged, the two sliding grooves (201) are arranged in a crossed manner, and the sliding grooves (201) are in a cross-shaped structure; four butting wheels (4) and four moving blocks (5) are arranged; the four butting wheels (4) are rotatably arranged on the moving block (5), and the butting wheels (4) are eccentric wheels; the butting wheel (4) is clamped with the moving block (5); the four moving blocks (5) are arranged in the sliding groove (201) in a sliding manner; the clamping plate (2) is provided with four adjusting mechanisms (6) for driving the moving blocks (5) to move, and the four adjusting mechanisms (6) are respectively connected with the four moving blocks (5); the clamping disc (2) is provided with a transmission mechanism (7), and the four adjusting mechanisms (6) are in driving connection through the transmission mechanism (7).

2. The positioning fixture for machining a mechanical accessory according to claim 1, wherein the adjusting mechanism (6) comprises a handle (601) and a lead screw (602); the screw rod (602) is rotatably arranged on the clamping disc (2), and the screw rod (602) is positioned in the sliding groove (201); the handle (601) is arranged at one end of the screw rod (602); the screw rod (602) is in threaded connection with the moving block (5).

3. The positioning jig for machining mechanical parts as claimed in claim 2, wherein the transmission mechanism (7) comprises a drive bevel gear (701) and a transmission bevel gear (702); four driving bevel gears (701) are arranged; the four screw rods (602) are respectively arranged on the four driving bevel gears (701); the transmission bevel gear (702) is rotationally arranged on the clamping disc (2); the drive bevel gear (701) is in meshed connection with the transmission bevel gear (702).

4. The positioning jig for machining a machine part according to claim 2, wherein the adjusting mechanism (6) further comprises a guide rail (603); the guide rail (603) is arranged on the clamping disc (2), and the guide rail (603) is positioned at the upper end of the screw rod (602).

5. The positioning fixture for machining mechanical parts, according to claim 3, is characterized in that the clamping plate (2) is provided with a central hole (202); the transmission mechanism (7) is positioned in the central hole (202); the baffle (3) is arranged at the central hole (202); the transmission mechanism (7) is positioned at the lower end of the baffle (3).

6. The positioning fixture for machining the mechanical part, as claimed in claim 1, wherein a threaded rod (8) is arranged on the abutting wheel (4), and the threaded rod (8) is in threaded connection with the abutting wheel (4); a plurality of limiting grooves (501) are arranged on the moving block (5); one end of the threaded rod (8) is embedded in one of the limiting grooves (501).

7. The positioning fixture for machining mechanical parts, according to claim 1, is characterized in that the lower end of the clamping plate (2) is provided with a base (1); the base (1) is provided with a plurality of positioning holes (101).