CN216066489U

CN216066489U - Positioning fixture

Info

Publication number: CN216066489U
Application number: CN202122641635.8U
Authority: CN
Inventors: 杨宏斌; 刘积满; 吴秋英
Original assignee: Zhuhai Meimu Automation Technology Co ltd
Current assignee: Zhuhai Meimu Automation Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-18
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a positioning fixture, which comprises a base, wherein a back plate positioned at the rear end is arranged on the base, a circular positioning boss convenient for positioning the rear end of a workpiece is convexly arranged on the back plate forwards, a first fixing table corresponding to the circular positioning boss is arranged on the base, a rod body capable of moving forwards and backwards and a manual driving mechanism used for driving the rod body to move forwards and backwards are arranged on the first fixing table, a jacking block used for jacking the front end face of the workpiece is arranged at one end, close to the circular positioning boss, of the rod body, second fixing tables are respectively arranged on the left side and the right side of the front end face of the back plate, and a transverse jacking screw used for jacking the side face of the workpiece is respectively in threaded connection with the inner side wall of each second fixing table.

Description

Positioning fixture

Technical Field

The utility model relates to a positioning fixture.

Background

At present, in the mechanical processing process, a part to be processed needs to be positioned and locked, the positioning can ensure the processing precision, and the locking can prevent the part from flying out in the processing process and prevent accidents; however, the existing clamp generally comprises a positioning element, a clamping device, a tool setting guide element, an indexing device, a connecting element, a clamp body and the like, and the workpiece is troublesome to assemble and disassemble in use, complex in structural design and poor in clamping effect.

Therefore, how to overcome the above-mentioned drawbacks has become an important issue to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects of the technology, provides a positioning clamp, and adopts the following technical scheme to realize the purpose:

a positioning fixture comprises a base 1, wherein a back plate 2 located at the rear end is arranged on the base 1, a circular positioning boss 4 convenient for positioning the rear end of a workpiece 3 is arranged on the back plate 2 in a forward protruding mode, a first fixing table 5 corresponding to the circular positioning boss 4 is arranged on the base 1, a rod body 6 capable of moving back and forth and a manual driving mechanism 7 used for driving the rod body 6 to move back and forth are arranged on the first fixing table 5, a jacking block 8 used for jacking the front end face of the workpiece 3 is arranged at one end, close to the circular positioning boss 4, of the rod body 6, second fixing tables 9 are respectively arranged on the left side and the right side of the front end face of the back plate 2, and a transverse jacking screw rod 10 used for jacking the side face of the workpiece 3 is respectively in threaded connection with the inner side wall of each second fixing table 9.

Manual drive mechanism 7 is including handle 71 and connecting rod 72, the one end of handle 71 articulates on first fixed station 5, the other end with the articulated connection of one end of connecting rod 72, the connecting rod 72 other end with the body of rod 6 is articulated to be connected, be equipped with lug 51 on the first fixed station 5, be equipped with the confession on lug 51 the body of rod 6 passes wherein be used for right the body of rod 6 carries out the direction through-hole 52 of leading around.

The rod body 6 is close to one end of the circular positioning boss 4 is provided with a screw hole 61, a counter bore 81 which penetrates through the whole top pressing block 8 from front to back is formed in the rear end face of the top pressing block 8, an adjusting screw 82 connected with the screw hole 61 is connected to the counter bore 81 in a welded mode, and a nut 83 which is used for limiting the adjusting screw 82 is connected to the section of the adjusting screw 82 located at the front end of the top pressing block 8.

The upper end of the first fixing table 5 is provided with a plurality of first mounting through holes 53, the base 1 is provided with first screw holes 11 corresponding to the first mounting through holes 53, the first fixing table 5 and the base 1 penetrate the first mounting through holes 53 from top to bottom through screws and are screwed into the first screw holes 11 to realize screw connection, the rear end of each second fixing table 9 is provided with a second screw hole 91, and the back plate 2 is provided with a second mounting through hole 21 corresponding to the second screw hole 91 and allowing screws to penetrate through the back plate 2 from the rear end face and be connected to the second screw hole 91.

The base 1 is further provided with two baffle plates 12 which are positioned on two sides of the front end of the back plate 2 and connected with the back plate 2, the heights of the two baffle plates 12 close to the front end are lower than the heights of the two baffle plates close to the rear end, the rear ends and the lower ends of the two baffle plates 12 are respectively provided with a plurality of third screw holes 13, and the back plate 2 and the base 1 are respectively and correspondingly provided with third mounting through holes 14 which are convenient for screws to penetrate through and are connected onto the third screw holes.

The upper end of the back plate 2 is concavely provided with a notch 22 which is convenient for processing the rear end face of the workpiece 3.

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

1. the positioning clamp is simple in structure and easy to realize, and the base is provided with the back plate positioned at the rear end so as to support the rear end of the workpiece; the back plate is provided with a circular positioning boss in a forward protruding mode so as to facilitate the positioning of the workpiece on the back plate; the arrangement of a first fixed table arranged on the base, and the arrangement of a rod body and a manual driving mechanism arranged on the first fixed table facilitate the top pressing of the front end surface of the workpiece so as to facilitate the front and back fixing of the workpiece; the pressing block is arranged on the rod body, so that the pressing area of the front end face of the workpiece is conveniently enlarged, the pressing is more stable, the workpiece is prevented from shaking forwards and backwards during machining, the workpiece is conveniently fixed, the structure is simple, and the practicability is good; the left and right sides of the front end face of the back plate are respectively provided with a second fixing table and a transverse jacking screw rod, the left and right sides can be rotated forwards or reversely conveniently, the transverse jacking screw rods can be close to or far away from the workpiece, so that the jacking position of the transverse jacking screw rods can be adjusted, the workpiece can be fixed in the left and right directions, the workpiece can be prevented from shaking left and right during machining, the operation is convenient, the structure is simple, and the practicability is good.

2. The manual driving mechanism comprises a handle and a connecting rod, one end of the handle is hinged to the first fixing table, the other end of the handle is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to the rod body, a protruding block is arranged on the first fixing table, and a guide through hole for the rod body to penetrate through and guide the rod body back and forth is formed in the protruding block; when the handle swings forwards and upwards, the handle drives the connecting rod to move towards the opposite direction of the workpiece, so that the jacking block jacked on the workpiece is pulled open, the clamp is loosened, and the clamp is convenient to operate, simple in structure, easy to realize and good in practicability.

3. The rod body is provided with a screw hole at one end close to the circular positioning boss, a counter bore penetrating the whole jacking block from front to back is arranged on the rear end face of the jacking block, and an adjusting screw connected with the screw hole is welded in the counter bore, so that the adjusting screw can be rotated forwards or backwards conveniently, the adjusting screw drives the jacking block to move forwards or backwards, the jacking position of the jacking block can be adjusted conveniently, and the device is convenient to operate, simple in structure and good in practicability; the adjusting screw is connected with a nut used for limiting the adjusting screw, so that the adjusting screw can be limited from rotating after the nut is rotated to move in place in the rod body direction and is screwed down, the adjusting screw can be prevented from rotating, the top pressing block fixed on the adjusting screw is prevented from pressing the workpiece, and the adjusting screw is convenient to operate, simple in structure and good in practicability.

Drawings

Fig. 1 is a structural view of a positioning jig.

Fig. 2 is an exploded view of the positioning jig.

Fig. 3 is one of the exploded views of the positioning jig.

Detailed Description

The features of the present invention and other related features are further described in detail below by way of examples to facilitate understanding by those skilled in the art:

as shown in fig. 1 and 2, a positioning fixture includes a base 1, a back plate 2 located at a rear end is disposed on the base 1, a circular positioning boss 4 convenient for positioning a rear end of a workpiece 3 is convexly disposed on the back plate 2 forward, a first fixing table 5 corresponding to the circular positioning boss 4 is disposed on the base 1, a rod body 6 capable of moving forward and backward and a manual driving mechanism 7 used for driving the rod body 6 to move forward and backward are disposed on the first fixing table 5, a pressing block 8 used for pressing a front end face of the workpiece 3 is disposed at one end of the rod body 6 close to the circular positioning boss 4, second fixing tables 9 are disposed on left and right sides of the front end face of the back plate 2, and a transverse pressing screw 10 used for pressing a side face of the workpiece 3 is respectively connected to an inner side wall of each second fixing table 9 through a thread.

As described above, the positioning fixture of the present disclosure has a simple and easy-to-implement structure, and the base 1 is provided with the back plate 2 located at the rear end, so as to support the rear end of the workpiece 3; a circular positioning boss 4 is convexly arranged on the back plate 2 forward so as to facilitate the positioning of the workpiece 3 on the back plate 2; the arrangement of a first fixed table 5 arranged on the base 1, and the arrangement of a rod body 6 and a manual driving mechanism 7 arranged on the first fixed table 5 are convenient for jacking the front end surface of the workpiece 3 so as to fix the workpiece 3 front and back; the rod body 6 is provided with the jacking block 8, so that the jacking area of the front end face of the workpiece 3 is conveniently enlarged, the jacking is more stable, the workpiece 3 is prevented from shaking forwards and backwards during processing, the workpiece 3 is conveniently fixed, the structure is simple, and the practicability is good; the left and right sides of terminal surface before backplate 2 is equipped with the setting of second fixed station 9, every respectively be equipped with the setting of horizontal roof pressure screw rod 10 on the inside wall of second fixed station 9, be convenient for can forward or the antiport left and right sides horizontal roof pressure screw rod 10, make the left and right sides horizontal roof pressure screw rod 10 can be close to or keep away from work piece 3 to adjust the roof pressure position of horizontal roof pressure screw rod 10, so that the fixing of 3 left and right sides directions of work piece prevents work piece 3 from rocking about adding the production man-hour, convenient operation, simple structure, the practicality is good.

As shown in fig. 1 and fig. 2, in a specific implementation, the manual driving mechanism 7 includes a handle 71 and a connecting rod 72, one end of the handle 71 is hinged to the first fixing platform 5, the other end of the handle 71 is hinged to one end of the connecting rod 72, the other end of the connecting rod 72 is hinged to the rod body 6, a protrusion 51 is disposed on the first fixing platform 5, and a guide through hole 52 through which the rod body 6 passes for guiding the rod body 6 forward and backward is disposed on the protrusion 51, so that when the handle 71 swings backward and downward, the connecting rod 72 hinged to the handle 71 moves toward the workpiece 3 at the same time, and meanwhile, the rod body 6 hinged to the connecting rod 72 moves toward the workpiece 3 under the pushing of the connecting rod 72, so that the pressing block 8 connected to the rod body 6 presses against the front end face of the workpiece 3, the operation is convenient, the structure is simple, and the practicability is good; when the handle 71 swings forwards and upwards, the handle 71 drives the connecting rod 72 to move towards the opposite direction of the workpiece 3, so that the pressing block 8 pressed on the workpiece 3 is pulled open, the clamp is loosened, and the clamp is convenient to operate, simple in structure, easy to realize and good in practicability.

As shown in fig. 1 to 3, in specific implementation, one end of the rod body 6 close to the circular positioning boss 4 is provided with a screw hole 61, a counter bore 81 penetrating through the whole jacking block 8 is formed in the rear end face of the jacking block 8, and an adjusting screw 82 connected with the screw hole 61 is welded in the counter bore 81, so that the adjusting screw 82 can be rotated forward or backward, and the adjusting screw 82 drives the jacking block 8 to move forward or backward, so as to adjust the jacking position of the jacking block 8, and the device is convenient to operate, simple in structure and good in practicability; the adjusting screw 82 at the front end of the top pressing block 8 is connected with a nut 83 for limiting the adjusting screw 82, so that when the nut 83 is rotated to move in place in the direction of the rod body 6 and is screwed, the adjusting screw 82 can be limited from rotating, so that the top pressing block 8 fixed on the adjusting screw 82 is prevented from loosening when pressing the workpiece 3, and the adjusting screw is convenient to operate, simple in structure and good in practicability.

As shown in fig. 1 to 3, in a specific implementation, a plurality of first mounting through holes 53 are formed in the upper end of the first fixing table 5, first screw holes 11 corresponding to the first mounting through holes 53 are formed in the base 1, and the first fixing table 5 and the base 1 are screwed into the first screw holes 11 from top to bottom through screws passing through the first mounting through holes 53 to realize screw connection, so that the first fixing table 5 can be conveniently detached, and a positioning fixture can be conveniently maintained; every the rear end of second fixed station 9 all is equipped with second screw 91, be equipped with on backplate 2 with the screw that is convenient for that second screw 91 position corresponds is followed 2 rear end faces of backplate pass wherein and connect second installation through-hole 21 on second screw 91 to the dismantlement of second fixed station 9 is convenient for, and the maintenance of positioning fixture is convenient for, simple structure, and the practicality is good.

As shown in fig. 1 to 3, in specific implementation, the base 1 is further provided with two baffles 12 located at two sides of the front end of the backboard 2 and connected to the backboard 2, and the heights of the two baffles 12 near the front end are both lower than the heights near the rear end, so as to increase the connection strength between the base 1 and the backboard 2 and prevent loosening or deformation, and the structure is simple and the practicability is good; two the rear end and the lower extreme of baffle 12 are equipped with a plurality of third screw 13 respectively, backplate 2 with correspond respectively on the base 1 and be equipped with the screw of being convenient for and pass wherein and be connected in third installation through-hole 14 on the third screw is convenient for the dismantlement of baffle 12 to positioning fixture's maintenance, simple structure, the practicality is good.

As shown in fig. 2 and 3, in specific implementation, the upper end of the back plate 2 is recessed with a notch 22 for processing the rear end face of the workpiece 3, so that the structure is simple and the practicability is good.

As mentioned above, the present disclosure is directed to a positioning fixture, and all technical solutions that are the same as or similar to the present disclosure should be considered as falling within the scope of the present disclosure.

Claims

1. The utility model provides a positioning fixture, its characterized in that is including base (1), be equipped with backplate (2) that are located the rear end on base (1), protruding circular location boss (4) that are convenient for fix a position work piece (3) rear end forward on backplate (2), be equipped with on base (1) with first fixed station (5) that circular location boss (4) position corresponds, be equipped with the body of rod (6) that can the seesaw and be used for the drive on first fixed station (5) the manual drive mechanism (7) of body of rod (6) seesaw, the body of rod (6) are close to the one end of circular location boss (4) is equipped with and is used for the roof pressure briquetting (8) of work piece (3) preceding terminal surface, the left and right sides of backplate (2) preceding terminal surface is equipped with second fixed station (9) respectively, every there is a horizontal roof pressure screw rod (8) that is used for the roof pressure on the inside wall of second fixed station (9) threaded connection respectively the roof pressure screw rod (9) the roof pressure the horizontal roof pressure screw rod of work piece (3) side face (10).

2. The positioning fixture according to claim 1, wherein the manual driving mechanism (7) comprises a handle (71) and a connecting rod (72), one end of the handle (71) is hinged to the first fixing platform (5), the other end of the handle is hinged to one end of the connecting rod (72), the other end of the connecting rod (72) is hinged to the rod body (6), a protruding block (51) is arranged on the first fixing platform (5), and a guide through hole (52) for the rod body (6) to pass through is arranged on the protruding block (51) and used for guiding the rod body (6) back and forth.

3. The positioning fixture according to claim 1, characterized in that one end of the rod body (6) close to the circular positioning boss (4) is provided with a screw hole (61), a counter bore (81) penetrating through the whole top pressing block (8) from front to back is arranged on the rear end face of the top pressing block (8), an adjusting screw (82) connected with the screw hole (61) is welded in the counter bore (81), and a nut (83) used for limiting the adjusting screw (82) is connected to the adjusting screw (82) at the front end of the top pressing block (8).

4. The positioning fixture according to claim 1, wherein a plurality of first mounting through holes (53) are formed in the upper end of the first fixing table (5), first screw holes (11) corresponding to the first mounting through holes (53) are formed in the base (1), the first fixing table (5) and the base (1) are connected by screws passing through the first mounting through holes (53) from top to bottom and screwed into the first screw holes (11) to form screw connections, a second screw hole (91) is formed in the rear end of each second fixing table (9), and a second mounting through hole (21) corresponding to the second screw hole (91) and allowing a screw to conveniently pass through the rear end face of the back plate (2) and be connected to the second screw hole (91) is formed in the back plate (2).

5. The positioning fixture according to claim 1, wherein the base (1) is further provided with two baffles (12) which are located on two sides of the front end of the back plate (2) and connected with the back plate (2), the heights of the two baffles (12) near the front end are both lower than the heights near the rear end, the rear end and the lower end of the two baffles (12) are respectively provided with a plurality of third screw holes (13), and the back plate (2) and the base (1) are respectively and correspondingly provided with third mounting through holes (14) which facilitate screws to pass through and are connected with the third screw holes.

6. A positioning fixture according to claim 1, characterized in that the upper end of the back plate (2) is recessed with a recess (22) for facilitating machining of the rear end face of the workpiece (3).