CN215789359U

CN215789359U - Adjustable positioning fixture

Info

Publication number: CN215789359U
Application number: CN202121990038.XU
Authority: CN
Inventors: 赵善东
Original assignee: Zhongshan Huahong Precision Mould Machinery Co ltd
Current assignee: Zhongshan Huahong Precision Mould Machinery Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-02-11
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses an adjustable positioning fixture which is characterized by comprising a base, wherein two clamping positioning seats capable of moving left and right are respectively connected to the base through a guide mechanism, an adjusting screw rod extending left and right is rotatably connected to the base, a first external thread is arranged on the periphery of the left half section of the adjusting screw rod, a second external thread opposite to the first external thread is arranged on the periphery of the right half section of the adjusting screw rod, a left thread connecting through hole connected with the first external thread is arranged on the clamping positioning seat on the left side, a right thread connecting through hole connected with the second external thread is arranged on the clamping positioning seat on the right side, the adjusting screw rod is used for driving the two clamping positioning seats to approach each other in forward rotation and driving the two clamping positioning seats to separate from each other in reverse rotation, a plurality of steps with the height gradually decreasing from left to right are arranged at the right end of the clamping positioning seat on the left side, the left end of the right side clamping and positioning seat is provided with a plurality of steps with gradually decreasing heights from right to left.

Description

Adjustable positioning fixture

Technical Field

The utility model relates to an adjustable positioning fixture, and relates to the field of machining.

Background

The clamp is used for fixing a machined workpiece in the mechanical manufacturing process, so that the workpiece is fixed at a designated position, and is convenient for construction or detection.

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 an adjustable positioning clamp, and adopts the following technical scheme to achieve the purpose:

an adjustable positioning fixture comprises a base 1, wherein the base 1 is respectively connected with two clamping and positioning seats 3 capable of moving left and right through a guide mechanism 2, the base 1 is rotatably connected with an adjusting screw rod 4 extending left and right, the periphery of the left half section of the adjusting screw rod 4 is provided with a first external thread 41, the periphery of the right half section of the adjusting screw rod 4 is provided with a second external thread 42 opposite to the first external thread 41, the clamping and positioning seat 3 on the left side is provided with a left side thread connecting through hole 31 connected with the first external thread 41, the clamping and positioning seat 3 on the right side is provided with a right side thread connecting through hole 32 connected with the second external thread 42, the adjusting screw rod 4 is used for driving the two clamping and positioning seats 3 to approach each other in the forward rotation, driving the two clamping and positioning seats 3 to be away from each other in the reverse rotation, the right end of the clamping and positioning seat 3 on the left side is provided with a plurality of steps 33 with gradually decreasing height from left to right, the left end of the right clamping and positioning seat 3 is provided with a plurality of steps 33 with gradually decreasing height from right to left.

Guiding mechanism 2 is used for right including the concave first guide way 21 of establishing in base 1 upper end the centre gripping positioning seat 3 leads, middle part position in the first guide way 21 is equipped with U-shaped bayonet 11, be equipped with on the U-shaped bayonet 11 from last down card income connecting plate 12 wherein, adjusting screw 4's middle part is equipped with body of rod joint recess 43 around its periphery is concave, connecting plate 12 upper end middle part is equipped with the confession body of rod joint recess 43 is gone into wherein pivoted connecting plate joint mouth 121 from last down card income.

The guide mechanism 2 further comprises two limiting strips 22 which are arranged on the front side and the rear side of the upper end of the base 1 and extend left and right, the limiting strips 22 are connected with the base 1 through screws 5, one side of each limiting strip 22 protrudes to the upper side of the first guide groove 21 and can prevent the connecting plate 12 from being clamped upwards from the U-shaped bayonet 11, and the front side and the rear side of each clamping and positioning seat 3 are respectively provided with a second guide groove 23 for embedding the protruding part of each limiting strip 22 into the corresponding second guide groove.

The 1 bottom of base is equipped with the countersunk head through-hole 13 of a plurality of, be equipped with on spacing rectangular 22 a plurality of with the spacing rectangular screw 221 that countersunk head through-hole 13 position corresponds, base 1 through from down up pass countersunk head through-hole 13, spacing rectangular screw 221 the screw 5 with spacing rectangular 22 fastening connection.

One end of the adjusting screw rod 4 is provided with a hexagonal head 44 which is convenient for rotating the adjusting screw rod 4, the hexagonal head 44 is exposed out of one side of the clamping and positioning seat 3 far away from the base 1, and the hexagonal head 44 is provided with an inner hexagonal groove 45.

A positioning groove 34 extending back and forth is concavely arranged on the step area between two adjacent steps 33.

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

1. the adjustable positioning fixture is simple and easy to realize in structure, the arrangement of the guide mechanism on the base is convenient for the two clamping positioning seats to run left and right on the base, the arrangement of the first external thread and the second external thread on the adjusting screw, and the arrangement of the left threaded connecting through hole and the right threaded connecting through hole are convenient for driving the two clamping positioning seats on the base to approach each other when the adjusting screw rotates forwards and to move away from each other when the adjusting screw rotates backwards, the adjustment is quick, so that the left side and the right side of a workpiece are convenient to clamp when the two clamping positioning seats approach each other, the workpiece is convenient to be fixed and well centered, in addition, the fixture quickly adjusts the distance between the left clamping positioning seat and the right clamping positioning seat by rotating the adjusting screw, so that to the centre gripping width between the work piece quick adjustment anchor clamps of unidimensional not, promoted anchor clamps's commonality, reduced the use finished product of anchor clamps to convenient operation, the practicality is good, be equipped with the setting of a plurality of steps of co-altitude not on the clamping positioning seat, so that the work piece can the co-altitude position on the clamping positioning seat presss from both sides tightly fixedly to the height of quick adjustment work piece processing position has promoted the application scope of anchor clamps, uses in a flexible way, and the practicality is good.

2. The base is provided with the first guide groove which is convenient for guiding the motion of the two clamping and positioning seats, so that, when the adjusting screw rod is rotated, the clamping positioning seat can be driven to move left and right, the arrangement of the U-shaped bayonet is convenient for fixing the connecting plate in the middle of the first guide groove, the arrangement of the connecting plate clamping interface on the connecting plate is convenient for the adjusting screw rod to be directly loaded from the upper end of the connecting plate, the installation and the disassembly are convenient, the maintenance of the clamp is convenient, and be convenient for right adjusting screw supports, and the practicality is good, the setting of body of rod joint recess is convenient for adjusting screw is in carry out the joint on the connecting plate, prevent adjusting screw follows the fore-and-aft direction displacement of connecting plate, and be convenient for adjusting screw is in rotate on the connecting plate, the practicality is good.

3. This case setting up of spacing rectangular, second guide way be convenient for prevent the clamping positioning seat is followed first guide way upwards is deviate from to and be convenient for better the clamping positioning seat leads, the practicality is good, spacing rectangular one side protrusion extremely the setting of the top of first guide way is convenient for prevent the connecting plate is followed the U-shaped bayonet socket upwards blocks out, the practicality is good.

4. The step area between two adjacent steps goes up the concave positioning groove who extends around being equipped with to supply the both sides limit of some work pieces to block into wherein, promoted the commonality of anchor clamps, the practicality is good.

Drawings

FIG. 1 is a schematic view of the construction of an adjustable positioning fixture.

Fig. 2 is an exploded view of an adjustable positioning fixture.

Fig. 3 is one of the exploded views of the adjustable positioning fixture.

Figure 4 is an exploded view of the second of the adjustable positioning fixtures.

Fig. 5 is an exploded view of the third adjustable positioning fixture.

FIG. 6 is one of the structural illustrations of the adjustable positioning fixture.

FIG. 7 is a cross-sectional view of an adjustable positioning fixture.

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 to 4, an adjustable positioning fixture comprises a base 1, wherein the base 1 is connected with two clamping and positioning seats 3 capable of moving left and right through a guide mechanism 2, the base 1 is rotatably connected with an adjusting screw rod 4 extending left and right, the periphery of the left half section of the adjusting screw rod 4 is provided with a first external thread 41, the periphery of the right half section of the adjusting screw rod 4 is provided with a second external thread 42 opposite to the first external thread 41, the clamping and positioning seat 3 on the left side is provided with a left side thread connecting through hole 31 connected with the first external thread 41, the clamping and positioning seat 3 on the right side is provided with a right side thread connecting through hole 32 connected with the second external thread 42, the adjusting screw rod 4 is used for driving the two clamping and positioning seats 3 to approach each other in forward rotation and driving the two clamping and positioning seats 3 to move away from each other in reverse rotation, the right end of the clamping and positioning seat 3 on the left side is provided with a plurality of steps 33 gradually decreasing in height from left to right, the left end of the right clamping and positioning seat 3 is provided with a plurality of steps 33 with gradually decreasing height from right to left.

As mentioned above, the adjustable positioning fixture of the present application is simple and easy to implement, the arrangement of the guide mechanism 2 on the base 1 facilitates the operation of the two clamping and positioning seats 3 on the base 1, the arrangement of the first external thread 41 and the second external thread 42 on the adjusting screw 4, and the arrangement of the left threaded through hole 31 and the right threaded through hole 32 facilitate the forward rotation of the adjusting screw 4 to drive the two clamping and positioning seats 3 on the base 1 to approach each other and the reverse rotation of the adjusting screw 4 to drive the two clamping and positioning seats 3 to move away from each other, so that the adjustment is fast, thereby improving the working efficiency, so that the left and right sides of the workpiece can be clamped when the two clamping and positioning seats 3 approach each other to fix the workpiece and center the workpiece better, in addition, the fixture can rapidly adjust the distance between the left clamping and positioning seats 3 on the right sides by rotating the adjusting screw 4, so that to the centre gripping width between the work piece quick adjustment anchor clamps of unidimensional not, promoted anchor clamps's commonality, reduced the use finished product of anchor clamps to convenient operation, the practicality is good, be equipped with the setting of a plurality of steps 33 of co-altitude not on the clamping positioning seat 3, so that the work piece can the co-altitude position on the clamping positioning seat 3 presss from both sides tightly fixedly, so that the height of quick adjustment work piece processing position has promoted the application scope of anchor clamps, uses in a flexible way, and the practicality is good.

As shown in fig. 2 to 4, during the specific implementation, guiding mechanism 2 is used for right including concave establishing in base 1 upper end clamping positioning seat 3 carries out the first guide way 21 that leads, middle part position in the first guide way 21 is equipped with U-shaped bayonet 11, be equipped with on the U-shaped bayonet 11 from the last connecting plate 12 that down blocks into wherein, adjusting screw 4's middle part is equipped with body of rod joint recess 43 around its periphery is concave, connecting plate 12 upper end middle part is equipped with the confession body of rod joint recess 43 from the last connecting plate joint mouth 121 that down blocks into wherein pivoted.

As mentioned above, the base 1 of the present disclosure is provided with the first guide groove 21 for guiding the movement of the two clamping and positioning seats 3, so that the clamping and positioning seats 3 can be driven to move left and right when the adjusting screw rod 4 is rotated, the U-shaped bayonet 11 is provided for fixing the connecting plate 12 in the middle of the first guide groove 21, the connecting plate 12 is provided with the connecting plate bayonet 121 for allowing the adjusting screw rod 4 to be directly loaded from the upper end of the connecting plate 12, facilitating the installation and disassembly, facilitating the maintenance of the fixture, and facilitating the support of the adjusting screw rod 4, the practicability is good, the rod body clamping groove 43 is provided for facilitating the clamping of the adjusting screw rod 4 on the connecting plate 12, preventing the adjusting screw rod 4 from moving from the front and back direction of the connecting plate 12, and facilitating the rotation of the adjusting screw rod 4 on the connecting plate 12, the practicability is good.

As shown in fig. 1, 3, 4, 6, and 7, in specific implementation, the guide mechanism 2 further includes two limiting strips 22 disposed on the front and rear sides of the upper end of the base 1 and extending left and right, the limiting strips 22 are connected to the base 1 by screws 5, one side of each limiting strip 22 protrudes above the first guide groove 21 and can prevent the connecting plate 12 from being upwardly hooked from the U-shaped bayonet 11, and the front and rear sides of each clamping and positioning seat 3 are each provided with a second guide groove 23 into which a protruding portion of the limiting strip 22 is inserted.

As described above, the arrangement of the long limiting strip 22 and the second guide groove 23 in this embodiment is convenient for preventing the clamping and positioning seat 3 from being disengaged from the first guide groove 21 upwards, and is convenient for better guiding the clamping and positioning seat 3, so that the practicability is good, the arrangement of the long limiting strip 22 protruding to the upper side of the first guide groove 21 is convenient for preventing the connecting plate 12 from being clamped out upwards from the U-shaped bayonet 11, and the practicability is good.

As shown in fig. 4 and 5, during the concrete implementation, base 1 bottom is equipped with the countersunk head through-hole 13 of a plurality of, be equipped with on spacing rectangular 22 a plurality of with spacing rectangular screw 221 that countersunk head through-hole 13 position corresponds, base 1 through from down up pass countersunk head through-hole 13, spacing rectangular screw 221 the screw 5 with spacing rectangular 22 fastening connection, so as to prevent spacing rectangular 22 is in produce not hard up on base 1, and be convenient for spacing rectangular 22 with the installation and the dismantlement of base 1, the maintenance of the anchor clamps of being convenient for, the practicality is good.

As shown in fig. 1 and 4, in specific implementation, one end of the adjusting screw rod 4 is provided with a hexagonal head 44 convenient to rotate the adjusting screw rod 4, the hexagonal head 44 is exposed out of one side of the clamping and positioning seat 3 away from the base 1, so that tools such as an adjustable wrench can be used for clamping one side of the clamp, the hexagonal head 44 rotates the adjusting screw rod 4, the hexagonal head 44 is provided with an inner hexagonal groove 45, so that tools such as an inner hexagonal wrench can be used for rotating the adjusting screw rod 4, and the adjusting screw rod is convenient to operate, labor-saving and good in practicability.

As shown in fig. 4, in specific implementation, a positioning groove 34 extending forward and backward is concavely provided on a step region between two adjacent steps 33, so that two side edges of some workpieces can be clamped therein, the universality of the fixture is improved, and the practicability is good.

As described above, the present disclosure is directed to an adjustable 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 an adjustable positioning fixture, its characterized in that is including base (1), be connected with two clamping positioning seats (3) that can the side-to-side motion through guiding mechanism (2) respectively on base (1), rotation is connected with adjusting screw (4) of extending about in base (1), the periphery of adjusting screw (4) half section in the left side is equipped with first external screw thread (41), the periphery of adjusting screw (4) half section in the right side be equipped with first external screw thread (41) reverse second external screw thread (42), the left side be equipped with left side threaded connection through-hole (31) of being connected with first external screw thread (41) on clamping positioning seat (3), the right side be equipped with right side threaded connection through-hole (32) of being connected with second external screw thread (42) on clamping positioning seat (3), adjusting screw (4) drive two when being used for corotation clamping positioning seat (3) are close to each other, The two clamping and positioning seats (3) are driven to be away from each other during reverse rotation, the right end of the clamping and positioning seat (3) on the left side is provided with a plurality of steps (33) with the height gradually decreasing from the left side, and the left end of the clamping and positioning seat (3) on the right side is provided with a plurality of steps (33) with the height gradually decreasing from the right side.

2. The adjustable positioning fixture according to claim 1, wherein the guiding mechanism (2) comprises a first guiding groove (21) concavely arranged at the upper end of the base (1) for guiding the clamping and positioning seat (3), a U-shaped bayonet (11) is arranged at the middle position in the first guiding groove (21), a connecting plate (12) is arranged on the U-shaped bayonet (11) and clamped into the U-shaped bayonet from top to bottom, a rod clamping groove (43) is concavely arranged at the middle part of the adjusting screw (4) around the periphery of the adjusting screw, and a connecting plate clamping port (121) for the rod clamping groove (43) to be clamped into the connecting plate clamping groove (121) from top to bottom and rotate is arranged at the middle part of the upper end of the connecting plate (12).

3. An adjustable positioning fixture according to claim 2, characterized in that the guiding mechanism (2) further comprises two limiting strips (22) which are arranged on the front and rear sides of the upper end of the base (1) and extend left and right, the limiting strips (22) are connected with the base (1) through screws (5), one side of each limiting strip (22) protrudes above the first guiding groove (21) and can prevent the connecting plate (12) from being stuck out of the U-shaped bayonet (11), and the front and rear sides of each clamping and positioning seat (3) are provided with second guiding grooves (23) into which the protruding parts of the limiting strips (22) are inserted.

4. An adjustable positioning fixture as claimed in claim 3, characterized in that the bottom of the base (1) is provided with a plurality of countersunk through holes (13), the position of the limiting strip (22) is provided with a plurality of limiting strip screw holes (221) corresponding to the countersunk through holes (13), and the base (1) is fastened to the limiting strip (22) by screws (5) passing through the countersunk through holes (13) and the limiting strip screw holes (221) from bottom to top.

5. The adjustable positioning fixture according to claim 1, wherein one end of the adjusting screw rod (4) is provided with a hexagonal head (44) for facilitating rotation of the adjusting screw rod (4), the hexagonal head (44) is exposed to a side of the clamping and positioning seat (3) away from the base (1), and the hexagonal head (44) is provided with an inner hexagonal groove (45).

6. An adjustable positioning fixture as claimed in any one of claims 1 to 5, characterized in that a positioning groove (34) extending back and forth is recessed in the step area between two adjacent steps (33).